CROSS-REFERENCE TO RELATED APPLICATIONS
TECHNICAL FIELD
[0002] The present disclosure relates to a chambray fabric, bedding articles including a
chambray fabric, and related methods of manufacturing same.
BACKGROUND
[0003] A typical chambray fabric formed with a colored warp yarns and undyed weft yarns.
In some cases, the weft yarns are dyed a color that is lighter than the color the
warp yarns are dyed. The warp yarns may be package dyed or dyed on the warp beam and
then woven into fabric with the undyed filling yarns to achieve the desired effect.
Chambray fabric can also be made in reverse with undyed or white warp yarns and colored
weft yarns. In either version, the warp and weft yarns are normally made of 100 %
cotton fibers. Coloring agents typically include reactive or vat dyes.
SUMMARY
[0004] Typical chambray fabrics have poor colorfastness to ingredients common in consumer
products, such as, for example, cosmetic or household products. There is a need for
woven chambray fabrics and related bedding articles that are colorfast to one or more
ingredients in cosmetic and/or household products. An embodiment of the present disclosure
is a woven chambray fabric that includes a plurality of warp yarns with each warp
yarn including natural fibers. The woven fabric includes a plurality of weft yarns
interwoven with the plurality of warp yarns. Each weft yarn defines a weft yarn assembly
that has a first weft yarn, a second weft yarn that extends alongside the first weft
yarn, and a plurality of consolidation regions where the first weft yarn and the second
weft yarn are coupled to each other. The first weft yarn is a spun staple yarn that
includes natural fibers and the second weft yarn is a dyed continuous filament yarn.
The second weft yarn is dyed a color that is different from a color of the first weft
yarn and each warp yarn so as to define the woven chambray fabric.
[0005] Another embodiment of the present disclosure is a coordinated bedding system. The
system includes a plurality of bedding articles that are formed from a woven chambray
fabric. The bedding articles include one or more of a flat sheet, a fitted sheet,
a pillow case, a sham, a comforter, a duvet, a bed-skirt, and/or a blanket.
[0006] Another embodiment of the present disclosure is a method of manufacturing a woven
chambray fabric. The method includes forming a yarn assembly that includes a first
yarn, a second yarn that extends alongside the first yarn, and a plurality of consolidation
regions where the first yarns and the second yarns are coupled together. The first
yarn is a spun staple yarn that includes natural fibers and the second yarn is a continuous
filament yarn. The method includes weaving a plurality of warp yarns with a plurality
of the yarn assemblies to form the woven fabric. The warp yarns include natural fibers.
The method includes applying color to the second yarn. Applying color to the second
yarn can occur before weaving. Alternatively, applying color to the second yarn can
occur after weaving.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The foregoing summary, as well as the following detailed description of illustrative
embodiments of the present application, will be better understood when read in conjunction
with the appended drawings. For the purposes of illustrating the present application,
there is shown in the drawings illustrative embodiments of the disclosure. It should
be understood, however, that the application is not limited to the precise arrangements
and instrumentalities shown.
Figure 1 is a plan view of a woven fabric according to an embodiment of the present
disclosure.
Figure 2 is cross-sectional view of the woven fabric taken along line 2-2 in Figure
1.
Figure 3 is a schematic of a weft yarn assembly used as the fill or weft yarn in the
woven fabric illustrated in Figures 1 and 2,
Figures 4 and 5 are schematics of a winding apparatus and yarn consolidation apparatus
used to weft yarn assembly shown in Figure 3.
Figure 6 is a schematic process flow diagram for manufacturing the pillow article
illustrated in Figure 1.
Figure 7 is a schematic process flow diagram for manufacturing the pillow article
illustrated in Figure 1.
DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS
[0008] Embodiments of the present disclosure include a woven chambray fabric, bedding articles,
and a coordinated bedding system comprising a plurality of bedding articles. A bedding
article may be a flat sheet, a fitted sheet, a pillow case, a sham, a comforter, a
duvet, a bed-skirt, and/or a blanket. The bedding articles include woven chambray
fabrics 10 constructed in accordance with the present disclosure.
[0009] Turning to Figures 1 and 2, the woven chambray fabric 10 has a plurality of warp
yarns 20 and a plurality of weft yarns 40 interwoven with the plurality of warp yarns
20 to define the woven chambray fabric 10. Each weft yarn 40 defines a weft yarn assembly
that includes a first weft yarn 42, a second weft yarn 44 that extends alongside the
first weft yarn 42, and a plurality of consolidation regions 46 where the first and
second weft yarns 42 and 44 are coupled together. The woven chambray fabric 10 includes
face 12 and back 14 opposite the face 12 along direction 8. The warp yarns 20 extend
along a warp direction 6 (sometimes referred to as a machine or longitudinal direction)
and the weft yarns 40 extend along a weft direction 4 (sometime referred to as a lateral
or cross direction). In accordance with the illustrated embodiment, the warp yarns
20 may be spun staple yarns that include natural fibers (e.g. cotton fibers). Furthermore,
the first weft yarn 42 may be spun staple yarns that include natural fibers (e.g.
cotton fibers) and the second weft yarn 44 is a dyed continuous filament yarn. To
create a chambray effect in the woven chambray fabric 10, the second weft yarn 44
is dyed a color that is different from a color of the first weft yarn 42 and each
warp yarn 20. The color difference between a) the second weft yarns 44 and b) the
first weft yarns 42 and warp yarns 20 creates a chambray color effect in the finished
fabric. In one example, the warp yarns 20 and first weft yarn 42 are bleached or substantially
white yarns while the second weft yarn 44 is a color that contrasts to the color of
the warp yarns 20 and first weft yarn 42.
[0010] The woven chambray fabric 10 is well suited for bedding applications. The presence
of natural fibers (e.g. cotton) results in soft, supple fabrics with good hand and
drape-- characteristics that are desirable in bedding articles. The presence of continuous
filament yarns in the weft can improve fabric durability, e.g. wash durability, which
is also a desirable attribute in bedding articles. And the chambray color effect is
not diminished by exposure to various ingredients found in consumer products. Rather,
the woven chambray fabric 10 is colorfast against one or more ingredients found in
cosmetic and household products. For example, the woven chambray fabric 10 is colorfast
against cosmetics chemicals, such as benzoyl peroxide, retinol, and salicylic acid,
as will described further below. The woven chambray fabric 10 is also colorfast against
chlorine bleach and non-chlorine bleach. Thus, long-term use of bedding articles that
include woven chambray fabric 10 should not result in color changes when exposed to
these common household chemicals. Improved durability, in combination with the colorfast
properties, extends the useful life bedding articles, decreasing the overall cost
of use for the consumer.
[0011] The woven chambray fabric 10 can have wide range of designs. The woven chambray fabric
10 can have a number of different woven structures each having a woven design repeat.
As used herein, a woven design repeat includes at least a first warp yarn 20a, a second
warp yarn 20b, and at least one weft yarn 40. For example, a plain weave fabric has
a woven design repeat that includes two adjacent warp yarns 20 and two adjacent weft
yarns 40. Depending on the particular design, woven design repeats may repeat along:
a) the weft direction 4; b) the warp direction 6; or c) both the weft direction 4
and warp directions 6. Some exemplary woven structures include, but are not limited
to: plain weaves; basket weaves, rib weaves (e.g. 2x1 rib weave; 2x2 rib weave; or
3x1 rib weave) twill weaves; oxford weaves; percale weaves, satin weaves (e.g. satin
dobby base, satin stripe satin 5/1, satin 4/1 satin; 4/1 satin base strip; 4/1 stain
swiss dot; 4/1 down jacquard;5/1 satins), or sateen weaves. In one example, the woven
fabric is a plain weave. In another example, the woven fabric is a basket weave. In
another example, the woven fabric is a rib weave. In another example, the woven fabric
is a twill. In another example, the woven fabric is an oxford weave. In another example,
the woven fabric is a satin weave. In another example, the woven fabric is a percale
weave. Furthermore, a number of exemplary satin constructions are possible. For instance,
in one satin weave example, the woven fabric is a 4/1 satin. In another example, the
woven fabric is a 4/1 satin dobby diamond weave. In another example, the woven fabric
is a 4/1 satin dobby stripe. In yet another example, the woven fabric is a 4/1 satin
jacquard weave. In another example, the woven fabric is a 5/1 satin. In still another
example, the woven fabric may be a 6/1 satin. In another example, the woven fabric
is a 7/1 satin. In yet another example, the woven fabric is an 8/1 satin. In another
example, the woven fabric is a 9/1 satin. And in another example, the woven fabric
is a 10/1 satin.
[0012] The present disclosure can utilize co-insertion techniques to insert multiple weft
yarns 40 along a weft insertion path 19 in a single weft insertion event during weaving,
as will be further detailed below. The weft insertion path 19 of weft yarn 40 is shown
in dashed lines in Figure 1. The weft insertion path 19 extends along the weft direction
4 around the warp yarns 20 across an entirety of the width of the woven chambray fabric
10. As illustrated, the weft insertion path 19 extends under (with respect to the
sheet) warp 20a, over warp yarn 20b, under warp yarn 20c, and over warp yarn 20d.
A person of skill in the art will appreciate that the weft insertion path 19 varies
from one woven design to another woven design. A "co-insertion" technique is when
multiple pick or weft yarns are inserted into the warp shed at one time during weaving.
Co-insertion may also include inserting three or more yarns supplied from the three
or more different yarn packages into the shed during weaving. The weft yarns inserted
via co-insertion are referred to as a weft yarn group. A weft yarn group extends through
the warp yarns along the weft insertion path 19. In one example, the woven chambray
fabric 10 has between two (2) weft yarns and eight (8) weft yarns per group that are
inserted into the shed during a single insertion event along the weft insertion path
19. By inserting groups of weft yarns into the shed during a weft insertion event,
it is possible to attain increased weft (or pick or fill) densities and therefore
higher thread counts. However, it should be appreciate that a single weft yarn 40
can be inserted along weft insertion path 19 in a single weft insertion event.
[0013] The woven chambray fabric 10 has thread counts suitable for bedding applications.
The thread count of the woven fabrics made in accordance with present disclosure are
typically greater than about 100 and can be as high as about 1000 (or even higher).
The thread count as used herein is the total number of yarns in square inch of fabric.
Plied yarns are considered one yarn for the purpose of determining thread count.
[0014] The woven chambray fabric 10 can have a range of warp end densities that are suitable
for bedding articles. In accordance with an embodiment of the present disclosure,
the woven fabric has a warp end density between about 50 warp ends per inch and about
350 warp ends per inch. Warp end density may be referred to as ends per inch or EPI.
In one example, the warp end density is between about 50 and 150 warp ends per inch.
In another example, the warp end density is between about 150 and 250 warp ends per
inch. In another example, the warp end density is between about 250 and 350 warp ends
per inch.
[0015] The woven chambray fabric 10 can have a range of weft end densities suitable for
bedding articles. In accordance with an embodiment of the present disclosure, the
weft yarns are arranged to define a weft end density between about 50 weft yarns per
inch and about 700 weft yarns per inch (or more). Weft end density may be referred
to as picks per inch or PPI. In one example, the weft yarn density is between about
100 and about 700 weft yarns per inch. In one example, the weft yarn density is between
about 100 and about 400 weft yarns per inch. In another example, the weft yarn density
is between about 400 and about 500 weft yarns per inch. In another example, the weft
yarn density is between about 500 and about 700 weft yarns per inch. The weft yarn
density has used herein refers to the total number of separate weft yarns along a
length of the woven fabric. For example, a weft yarn density of about 50 picks per
inch refers the 50 total weft yarns per inch of woven fabric. If the weft yarn groups
are inserted during a single weft insertion event and each group includes three (3)
weft yarns, then there would be about 16 total weft yarn groups per inch of fabric
and 48 picks per inch. In accordance with one embodiment of the present disclosure,
the plurality of warp yarns define a warp end density between about 50 warp ends per
inch to about 250 warp ends per inch, and the weft yarns 40 define a weft density
between about 50 wefts per inch and about 150 wefts picks per inch.
[0016] The type and content of the warp yarns 20 and weft yarns 40 are described next. In
accordance with an embodiment of the present disclosure, the warp yarns 20 may be
spun staple yarns that include natural fibers, e.g. cotton fibers. For example, the
weft yarns may be exclusively cotton fibers, a blend of cotton fibers and one or more
other natural fibers, and/or synthetic fibers. For instance, other natural fibers
include silk, linen, flax, bamboo, hemp, wool, and the like. Other synthetic fibers
may include, but are not limited to, rayon fibers (e.g. Modal, Lyocell) or thermoplastic
fibers could be used blend yarns, such as polyethylene terephthalate (PET) fiber,
polylactic acid (PLA) fiber, polypropylene (PP) fibers, polyamide fibers, and microfiber
staple fibers.
[0017] The warp yarns 20 can include any type of spun staple yarn. For example, the warp
yarns can be ring spun yarns, open end yarns, rotor spun yarns, vortex spun yarns,
core spun yarns, jet spun yarns, or compact spun yarns. In another embodiment, the
warp yarns can be Hygrocotton ® brand yarns marketed by Welspun India Limited. Furthermore,
yarns can be formed as disclosed in
U.S. Patent No. 8,833,075, entitled "Hygro Materials for Use In Making Yarns And Fabrics," (the 075 patent).
The 075 patent is incorporated by reference into present disclosure. Preferred warp
yarns are ring spun yarns. The warp yarn 20 can, however, be any type of spun yarn
structure. In alternative embodiment, the warp yarn can be a continuous filament yarn.
[0018] The warp yarns 20 have a range of counts for the fiber and yarn types described above.
For instance, the warp yarn 20 can have a count in the range between about 8 Ne (664
denier) to about 120 Ne (44.3 denier). In certain examples, the warp yarn count is
between 20 Ne (266 denier) and about 120 Ne (44.3 denier). In one example, the warp
yarn count is between 20 Ne (266 denier) and about 100 Ne (53.1 denier). In one example,
the warp yarn count is between 20 Ne (266 denier) and about 60 Ne (88.6 denier). In
another example, the warp yarn count is between 20 Ne (266 denier) and about 40 Ne
(133 denier). In another example, the warp yarn count is 20 Ne (266 denier) and about
30 Ne (177 denier). In one example, the warp yarn is 2-ply yarn. In another example,
the warp yarn is a 3-ply yarn.
[0019] Referring to Figure 3, each weft yarn 40 defines weft yarn assembly. The weft yarn
assembly includes a first weft yarn 42 is a spun staple yarn and the second weft yarn
44 is a dyed continuous filament yarn. The second weft yarn 44 may be referred to
as a "dyed second weft yarn". The first and second yarns 42 and 44 are consolidated
into a weft yarn assembly via a plurality of consolidation regions 46 where the first
weft yarn 42 is coupled to the second weft yarn 44, as further detailed below. The
first and second weft yarns 42 and 44 are substantially parallel with respect to each
other along a length L of the weft yarn assembly that extends between adjacent consolidation
regions 46. In one example, the length L is at least 0.25 cm. In another example,
the length L is between about 0.25 cm to about 3.00 cm. In another example, the length
is between about 1.00 cm and about 2.50 cm.
[0020] The first weft yarn 42 can be formed from primarily from natural fibers. In accordance
with the illustrated embodiment, the natural fibers are cotton fibers. However, in
alternative embodiments, the first weft yarn 42 can include cotton fibers blended
with other natural or synthetic fibers. In such an example, the natural fibers could
include silk, linen, flax, bamboo, hemp, wool, and the like. The first weft yarn can
include cotton and synthetic fibers. Synthetic fibers include, but are not limited
to, rayon fibers (e.g. Modal, Lyocell) or thermoplastic fibers, such as polyethylene
terephthalate (PET) fiber, polylactic acid (PLA) fiber, polypropylene (PP) fibers,
polyamide fibers, and microfiber staple fibers.
[0021] The first weft yarn 42 is a spun staple yarn. The first weft yarns 42 can be ring
spun yarns, open end yarns, rotor spun yarns, vortex spun yarns, core spun yarns,
jet spun yarns, or compact spun yarns. In one example, the first weft yarn can be
a Hygrocotton ® brand yarn. In one preferred embodiment, the first weft yarn 42 is
a ring spun yarn formed from cotton fibers. However, the first weft yarn is not limited
to ring spun yarns made exclusively from the cotton fibers.
[0022] The first weft yarn 42 can have a range yarn counts. For instance, the first weft
yarn 42 can have a count in the range between about 8 Ne (664 denier) to about 120
Ne (44.3 denier). In certain examples, the first weft yarn count is between 20 Ne
(266 denier) and about 120 Ne (44.3 denier). In one example, the first weft yarn count
is between 20 Ne (266 denier) and about 100 Ne (53.1 denier). In one example, the
first weft yarn count is between 40 Ne (133 denier) and about 100 Ne (53.1 denier).
In one example, the first weft yarn count is between 40 Ne (133 denier) and about
80 Ne (66.4 denier). In one example, the first weft yarn count is between 40 Ne (133
denier) and about 60 Ne (88.6 denier). In one example, the first weft yarn count is
between 60 Ne (88.6 denier) and about 80 Ne (66.4 denier). In one example, the first
weft yarn count is between 60 Ne (88.6 denier) and about 100 Ne (53.1 denier). In
one example, the first weft yarn count is between 20 Ne (266 denier) and about 60
Ne (88.6 denier). In another example, the first weft yarn count is between 20 Ne (266
denier) and about 40 Ne (133 denier). In another example, the first weft yarn count
is 20 Ne (266 denier) and about 30 Ne (177 denier). In one example, the first weft
yarn has a count of about 20 Ne (266 denier). In one example, the first weft yarn
count is about 30 Ne (177 denier). In one example, the first weft yarn count is about
40 Ne (133 denier). In another example, the first weft yarn count is about 60 Ne (88.6
denier). In another example, the first weft yarn count is about 70 Ne (75.9 denier).
In another example, the first weft yarn count is about 80 Ne (66.4 denier). In another
example, the first weft yarn count is about 100 Ne (53.1 denier). In another example,
the first weft yarn has a count of about 120 Ne (44.3 denier).
[0023] The second weft yarn 44 is a dyed continuous filament yarn. Continuous filament yarns
are formed by typical melt-spinning processes. As such, the second weft yarn 44 can
be textured with false twist imparted via air jet texturing apparatus as is known
in the art. The second weft yarn 44 can be formed to have a range of filaments per
yarn as well as a range denier per filament (dpf). In one example, the second weft
yarn 44 is a dyed continuous filament yarn formed from polyethylene terephthalate
(PET) filaments.
[0024] The dyed continuous filament yarn 44 (sometimes referred to as the "dyed yarn)" can
have one of several different yarn types based on how color is applied to the yarn.
The dyed continuous filament yarn 44 may be a "dope-dyed" yarn, a "package-dyed" yarn,
or a "yarn-dyed" yarn. A "dope-dyed" yarn is yarn with dye molecules or pigments disposed
uniformly throughout the internal morphology of the fibers (filaments). A dope dyed
yarn is a yarn that has dyes applied in the masterbatch during filament extrusion.
A "package-dyed" means yams that have dyes applied after yarn formation and before
fabric formation, yet have dye molecules disposed in the internal morphology of filament
or fiber structure. The phrases "yarn dyed yarn," "yarn dyed weft yarn" or "yarn dyed
continuous filament yarn" means yarns that have dyes applied after fabric formation)
yet have dye molecules within the internal morphology of filament or fiber structure.
A dope-dyed yarn as used herein is a structural term that is distinguished from a
"package dyed" yarn and a "yarn dyed yarn." A dope-dyed yarn would have better and
more uniform color penetration through the yarn cross-section and along the length
of the yarn. In contrast, a package dyed yarn and a yarn-dyed yarn would have nonuniform
color penetration through the yarn cross-section and along the length of the yarn.
Accordingly, the second weft yarn 44 can be a dope-dyed continuous filament yarn that
includes pigments. In another example, the second weft yarn 44 can be a package dyed
yarn that includes disperse dyes applied to yarn via a package dyeing process (not
shown). In another example, the second weft yarn 44 can be a yarn dyed yarn where
color is applied after fabric formation with, for example, disperse dyes. It should
be appreciated that a number of colorants can be used to form the dope-dyed yarn,
the package dyed yarn, or the yarn-dyed yarn as described in the present disclosure.
[0025] The second weft yarn 44 can have a range of counts. In accordance with the illustrated
embodiment, the second weft yarn 44 has count between 60 denier (88.6 Ne) to about
150 denier (55.4 Ne). In one example, the second weft yarn 44 has count between 60
denier (88.6 Ne) to about 120 denier (44.3 Ne). In another example, the second weft
yarn 44 has count between 60 denier (88.6 Ne) to about 110 denier (48.3 Ne). In another
example, the second weft yarn 44 has count between 60 denier (88.6 Ne) to about 100
denier (53.1 Ne). In another example, the second weft yarn 44 has count between 60
denier (88.6 Ne) to about 80 denier (66.4 Ne). In another example, the second weft
yarn 44 has count between 80 denier (66.4 Ne) to about 120 denier (44.3 Ne). In another
example, the second weft yarn 44 has count between 80 denier (66.4 Ne) to about 110
denier (48.3 Ne). In another example, the second weft yarn 44 has count between 90
denier (59.1 Ne) to about 110 denier (48.3 Ne). The second weft yarn can particular
counts among the ranges described above. For instance, the second weft yarn 44 has
a count of about 60 denier (88.6 Ne). In another example, the second weft yarn 44
has a count of about 70 denier (75.9 Ne). In another example, the second weft yarn
44 has a count of about 75 denier (70.9 Ne). In another example, the first weft yarn
42 has a count of about 80 denier (66.4 Ne). In another example, the second weft yarn
44 has a count of about 90 denier (59.1 Ne). In another example, the second weft yarn
44 has a count of about 100 denier (53.1 Ne). In another example, the second weft
yarn 44 has a count of about 110 denier (48.3 Ne). In another example, the second
weft yarn 44 has a count of about 120 denier (44.3 Ne). In another example, the second
weft yarn 44 has a count of about 130 denier (40.9 Ne). In another example, the second
weft yarn 44 has a count of about 140 denier (38 Ne). In another example, the second
weft yarn 44 has a count of about 150 denier (35.4 Ne).
[0026] The warp yarns 20 and weft yarns 40 may be selected to achieve a desire fiber content.
In accordance with an embodiment of the present disclosure, the warp yarns include
natural fibers, the first weft yarn 42 includes natural fibers, and the second warp
yarn is a dyed continuous filament yarn. In one example, the woven chambray fabric
10 is between 50 % to about 80 % by weight of natural fibers, with the balance comprising
the synthetic fibers (based on dyed continuous filament yarn). In one preferred example,
natural fibers are cotton fibers. In such an example, the woven chambray fabric 10
is between 50 % to about 80 % by weight of cotton fibers. In another preferred example,
the woven chambray fabric 10 is between 60 % to about 80 % by weight of cotton fibers.
In another preferred example, the woven chambray fabric 10 is between 70 % to about
80 % by weight of cotton fibers. The specified ranges are exemplary and indicate the
fiber content of woven chambray fabrics that have desirable attributes. The fiber
content could vary outside of the stated ranges and fall within the inventive concepts
set forth in the present disclosure.
[0027] Turning to Figures 4 and 5, another embodiment of the present disclosure is textile
manufacturing system that includes a yarn winding apparatus 400 and a weft yarn assembly
device 500. The yarn winding apparatus 400 is configured to wind a first weft yarn
42 and a second weft yarn 44 onto a multiple yarn package 402. The multiple yarn package
402 can be used to present the first and second yarns 42 and 44 to the weft yarn assembly
device 500 to consolidate the two yarns together. The yarn winding apparatus 400 and
a weft yarn assembly device 500 will described next.
[0028] Referring to Figure 4, the yarn winding apparatus 400 includes first holder 410 and
a second holder 412 for a first yarn package 420 and a second yarn package 422, respectively.
The first yarn package 420 and the second yarn package 422 include the first weft
yarn 42 and the second weft yarn 44, respectively. The winding apparatus 400 also
include first and second yarn guides 430 and 432 configured to receive the first and
second yarns 42 and 44 from the respective first and second yarn packages 420 and
422, respectively. Further included are first guide rollers 440 and second guide rollers
450 positioned in a downstream direction D with respect to the first guide rollers
440. The first and second guide rollers 440 and 450 are direct the first and second
yarns 42 and 44 in the downstream direction D to a winder 460.
[0029] The winder 460 is a multiple yarn package winder 460 that supports a package core
462. The first and second yarns 42 and 44 are wound in a parallel relationship with
respect to each other onto the package core 462 by the winder 460. The winder 460
is configured to wind the first and second yarns on the package core 462 within a
predetermined range of wind angles so to define the multiple yarn package 420. The
winder 460 can be a precision winder or a random winder as is known in art.
[0030] Referring to Figure 5, the weft yarn assembly device 550 includes a package holder
510 that holds position a multiple yarn package 402. The multiple yarn package402,
as discussed above, may include at least a first weft yarn 42 and a second weft yarn
44 wound in a substantially parallel relationship with respect to each other. The
yarn assembly device 500 includes a yarn consolidator 530 that is configured to couple
the first weft yarn 42 to the second weft yarn 44 at predefined intervals to define
a weft yarn assembly 40. In one example, the yarn consolidator 530 is air punching
device configured to eject fluid into the first and second yarns 42 and 44 to as to
entangle the yarns together at the consolidation regions. The yarn assembly device
500 further includes a winder 560 configured to wind the weft yarn assembly 40 into
a composite yarn package 502 at a predetermined wind angle. The winder 560 can be
a precision winder or a random winder as is known in the art. The yarn assembly device
500 includes a first pair of guide rollers 520 located between the package holder
510 and the yarn consolidator 530. The first pair of guide rollers 520 configured
to direct first and second yarns 42 and 44 toward the yarn consolidator 530. A second
pair of guide rollers 540 is located between the yarn consolidator 530 and the winder
560. The second pair of guide rollers 540 configured to direct the weft yarn assembly
to the winder. One or more additional yarns guides 550 can be used direct the weft
yarn 40 to the winder 560.
[0031] Turning to Figure 3, a method of making woven chambray fabric 10 according to an
embodiment of the disclosure includes yarn formation 210 for the warp yarns 20 and
weft yarns 40. Yarn formation 210 for the warp yarns can include staple yarn formation
or spinning 212 and optionally filament yarn formation 214 (where applicable). Staple
yarn formation 212 may utilize any number of yarn formation systems and sub-systems.
For instance, staple yarn formation may include bale opening, carding, optionally
combing, drafting, roving, and yarn spinning (yarn spinning processes are not illustrated)
to the desired count and twist level. In some cases, the warp yarns can be plied into
2-ply, 3-ply, or 4-ply configurations. After yarn spinning, the warp yarns are wound
into the desired yarn packages for warping 220. In one example, ring spinning is the
preferred spinning system. However, the warp yarns can be formed using open end spinning
systems, rotor spun spinning systems, vortex spinning systems, core spinning yarns,
jet spinning yarns, or compact spinning systems. Furthermore, the spinning system
may include methods to form the Hygrocotton ®, as disclosed in the 075 patent. The
075 patent is incorporated by reference into present disclosure.
[0032] During yarn formation 210, the first weft yarn 42 can may be formed using similar
yarn spinning systems used to form the warp yarns, where appropriate. The first weft
yarn 42 can be formed using any spun spinning system, similar to the warp yarns 20
described above. As needed, the first weft yarn 42 may be a plied yarn. For instance,
the first weft yarn 42 can be a 2-ply, 3 ply, or 4-ply yarn. The second weft yarn
44 is a continuous filament yarn formed using a melt spinning system.
[0033] During filament formation, polymer resins are melted and extruded through orifices
at temperatures that approach the polymer melting temperature (Tm). From the orifices,
the filaments may be slightly tensioned by passing over one or more godets before
being wound onto desired yarn packages. Additional bulking or texturizing steps may
be included to increase the bulk and impart "false twist" to the texture to the second
weft yarns 44. The second weft yarn 44 may formed during filament formation 214. In
some embodiments, colorants are added the to the masterbatch of the polymer resin.
Colorant loaded polymer resin then extruded as dyed filaments. Thus, filament formation
can form a dope dyed continuous filament yarn as described above. In one example,
the second weft yarn 44 is a dope dyed PET yarn. In an alternative embodiment, filament
yarn formation may include package dying the continuous filament yarn (e.g. if dope-dying
is not used).
[0034] Following weft yarn spinning, a weft yarn assembly is prepared in winding 216 and
consolidation 218 operations. Winding 216 includes use of a yarn winding apparatus
400 (Figure 4) configured to wind a first weft yarn 42 and a second weft yarn 44 onto
a multiple yarn package 402 such that the first and second yarns are arrange substantially
parallel with respect to each other. Consolidation 218 uses of the weft yarn assembly
device 500 (Figure 5) to couple the first and second weft yarns 42 and 44 together.
In accordance with the illustrated embodiment, consolidation 218 couples the first
and second weft yarns 42 and 44 together with an air punch device 530 (Fig. 5). As
illustrated, the air punching device 530 ejects fluid, e.g. air, into the path of
the first and second yarns 42 and 44 to entangle the fibers (or filaments) of first
weft 42 with the filaments of the second yarn 44. The first and second yarns 42 and
44 are air punched together at 0.25 cm to 3.0 cm spaced apart intervals depending
on requirements. Winding 216 and consolidation 218 are used to arrange the first and
second yarns 42 and 44 substantially parallel with respect to each other along a length
of the yarn assembly 40 between adjacent consolidation regions 46.
[0035] Warping 220 follows the yarn formation 210. Warping 220 is where warp yarn ends are
removed from their respective yarn packages, arranged in a parallel form, and wound
onto a warp beam. Warping 220 also includes a sizing step where a sizing agent is
applied to each warp yarn to aid in fabric formation. Warping 220 results in a warp
beam of warp yarns prepared for weaving. The warp beam can be positioned on a mounting
arm of a weaving loom so that the warp yarns can be drawn through the loom components,
as further described below.
[0036] Continuing with Figure 3, after warping 220, weaving 240 operation forms a woven
fabric with a weaving loom. More specifically, in weaving 240, the warp yarns are
drawn-in (not shown) through various components of a weaving loom, such as drop wires,
heddle eyes attached to a respective harness, reed and reed dents, in a designated
order as is known in the art. After drawing-in is complete, fabric formation phase
can begin.
[0037] During the formation phase of the weaving 240, the weft yarns 40 are interwoven with
the warp yarns 20 to define the desired woven construction. The formation phase creates
shed with the warp yarns 20 that the weft yarns 40 can be inserted through across
the width direction of the machine to create the desired woven fabric construction.
For instance, shedding motions can include cam shedding, dobby shedding, or jacquard
shedding motions, each of which can cause the selective raising and lowering of warp
ends to create an open shed for weft insertion. The formation phase can utilize different
weft insertion techniques, includes air-jet, rapier, or projectile type weft insertion
techniques. In each weft insertion event, one or composite yarns 40 are inserted through
the shed. For instance, the weaving step can utilize a co-insertion so that multiple
groups of weft yarn inserted through the shed during a single weft insertion event,
as described above. The weaving step 240 can further include weaving one or more selvedge
edges along a length L of the woven fabric. It should be appreciated that various
woven constructions can made during weaving 240, including, but not limited to: plain
weaves; basket weaves, satins; rib weaves; twill weaves, oxford weaves; percale weaves;
and sateens.
[0038] After weaving 240, the woven fabric passes through desizing and bleaching 250. Desizing
may be accomplished with enzymes as is known in the art. Bleaching may include typical
bleaching agents, such as hydrogen peroxide bleaching. In the bleaching process the
fabric may be treated with the exemplary composition shown in the table 1 below.
Table 1
Component |
Level |
Caustic Soda |
10-30 gpl |
Hydrogen peroxide |
14 -50 gpl |
Peroxide Stabilizer |
4-15 gpl |
Wetting agent |
2 gpl -10 gpl |
Sequestering agent |
2 gpl- 6 gpl |
pH target |
8-13 |
Parameters |
Temp: 98 °C |
Dwell time 8-15 minutes |
In accordance with the illustrated embodiment, such as when the warp yarn 20 and the
first weft yarn 42 are cotton yarns, the bleaching process bleaches the cotton warp
yarns 20 cotton weft yarns 42. The dyed continuous filament yarn 44 of weft yarn 40
remains as is in the woven fabric and gives final chambray color effect as described
herein. Step 250 may also include an optional singing step.
[0039] Next, an optional fabric finishing 270 operation applies a composition including
one or more of the functional agents to the woven fabric, such as a softener. In one
example, the finish composition may contains micro silicone at about 5-20 gpl, a macro
silicone at about 5 -20 gpl, and /or a polyethylene emulsion at about 5-20 gpl. Functional
finishes are optional. Finishing includes a drying phase that is used to remove excess
moisture from the woven fabric and the composition. During the drying phase, the woven
fabric is advanced through a heating machine. The drying phase may include convection,
heated steam, infrared, hot air, surface rolls, hot oil can, through-air ovens and
the like. After drying, the woven fabric may be optionally sanforized and calendared
to adjust the hand and better control shrinkage.
[0040] After finishing 270, the woven chambray fabric 10 may be assembled 280 into bedding
articles. Article assembly 280 may include material handling a roll goods to present
to cutting, hemming, and or folding machines that are used to prepare the articles.
In one example, article assembly 280 includes cutting a panel of woven chambray fabric
to the appropriate length and width dimensions for the intended articles, such as
the flat sheet or pillow case. The outer edges of the panel may be hemmed or surged
to create finished edge. Secondary components can be attached to the panel at this
stage. For example, ribbing, block hems, or binding can be sewn or otherwise attached
to the panel. For fitted sheets, elastic materials are secured the at least the corner
regions along the edge of the panel. For comforters can be cut to size and combined
with desired batting or fill (e.g. fiber, feather, etc.). Accordingly, article assembly
280 includes forming one or more bedding articles of a bedding system. The bedding
articles include at least one of a flat sheet, a fitted sheet, a pillow case, a sham,
a comforter, a duvet, a bed-skirt, and a blanket.
[0041] After the assembling step, a packaging step 290 places the bedding article in suitable
packaging for shipment. The packaging 290 may include automatically folding the formed
articles, which are in panel form, into a folded configuration. The folded article
is then placed in an outer package for shipment.
[0042] Turning to Figure 7, an alternative embodiment of the present disclosure is a method
300 used to form a woven chambray fabric 10 whereby color is applied to the second
weft yarn 44 after fabric formation. The alternative method 300 is substantially the
same as method 200 described above and illustrated in Figure 6. Similar reference
numbers will be used to refer to steps or operations that are common to method 200
shown Figure 6 and method 300 shown in Figure 7. Referring to Figure 7, in accordance
with the alternative embodiment, yarn formation 310 includes spun yarn formation 312,
which can produce the first weft yarn 42 as a spun staple yarn of natural fibers (e.g.
cotton). Spun yarn formation 312 can also produce warp yarns 20 as spun staples yarns
of natural fibers (e.g. cotton). Filament yarn formation 314 is similar to filament
yarn formation 212. However, in accordance with the alternative embodiment, coloring
agents are not added to the polymer melt during yarn formation. Rather, during yarn
formation 310, the polymer melt is extruded into an "undyed" continuous filament yarn.
The undyed continuous filament yarn is wound into a suitable package during winding.
The first weft yarn 40 and the undyed" continuous filament yarn are consolidated during
yarn consolidation 218 to yield a yarn assembly The yarn assembly, which includes
the undyed weft yarn 42, is used form a woven fabric during fabric formation 240.
After fabric formation 240, the woven fabric progresses through desizing and bleaching
250 and optionally through an optional mercerization process (not shown). Here, the
bleaching phases bleach the cotton yarns.
[0043] After desizing and bleaching, coloring agents are applied to the woven fabric in
dyeing operation 360. In accordance with the embodiment illustrated, the dyeing operation
360 applies color to the undyed continuous filament yarn, i.e. the second weft yarn
44 in the yarn assembly. The dyeing operation is carried out in such way that coloring
agents are not applied or affixed to, the first weft yarn 42 or the warp yarns 20.
For instance, in an example where the first weft yarn 42 and the warp yarns 20 made
of spun staple yarns comprised of cotton fibers, and the continuous filament yarn
is comprised of PET, the dyeing operation can use disperse dyes to apply color the
PET continuous filament yarn. Because disperse dyes are suitable color agents for
PET but not for cotton fibers, the dyeing operation does not apply color to the first
weft yarn 42 and the warp yarns 20.
[0044] In accordance with the illustrated embodiment, the dyeing operation 360 used to apply
color to the continuous filament yarn is a thermosol dyeing operation. A thermosol
dying operation a) dye application, b) drying and pre-heating; c) thermo-fixing of
the dyes to fabric, and d) after-treatment, which includes removing any un-fixed dyes
from the fabric. Thermosol dying utilizes disperse dyes, as explained below.
[0045] Dye application includes pad-applying a dye composition onto to woven fabric using
a pad-applicator. The composition includes disperse dyes and one or more auxiliaries.
The auxiliaries may include, but are not limited to, a dispersing agent, a wetting
agent, an anti-migrating agent, a pH stabilizer (e.g. a buffering salt, such as monosodium
phosphate), and a diffusion accelerant.
[0046] The drying and pre-heating phase removes any excess water from the composition and
the fabric and gradually dries the woven fabric.
[0047] The thermo-fixing phase exposes the woven fabrics to temperatures between 190°C and
210°C (or higher) thermosol machine. The thermo-fixing phase causes the internal morphology
of the filaments to open so that disperse dye molecules can migrate into the fiber
structure. The fabric is exposed to elevated temperatures for a limited period of
time. A person of ordinary skill would understand that the time-temperature profile
can be modified as needed based on the application and the shade requirements.
[0048] After the thermo-fixing phase, excess or unfixed dyestuffs can be removed via the
washing or reduction clearing phase. In one example, a reduction clearing phase can
use a composition that includes caustic soda (10-30 gpl) and sodium hydrosulphite
(10-30 gpl) at predetermined temperatures, e.g. between 98105°C. The fabric is then
dried again to remove any excess moisture applied during the after-treatment phase.
[0049] Dye operation 360 therefore applies color the continuous filament yarn 44 while the
first weft yarn 42 and the warp yarns 20 remain white or bleached. Because color is
applied the second weft yarn 42 and no color is applied to the first weft yarn 42
and the warp yarns 20 and remain white, the woven fabric provides a "Chambray" effect.
The dying operation 360 applies color the woven fabric, and the second weft yarn 44,
after fabric formation. Accordingly, the second weft yarn 44, when woven and then
dyed, can be referred to as a "yarn dyed weft yarn" or "yarn dyed continuous filament
yarn," as those terms are described in the present disclosure. As described above,
the phrases "yarn dyed yarn," "yarn dyed weft yarn" or "yarn dyed continuous filament
yarn" means yarns that have dyes applied after yarn formation (or fabric formation)
yet have dye molecules disposed within the internal morphology of filament or fiber
structure. In contrast method 200, utilizes dope dyed weft yarn 44, in which pigments
are applied to masterbatch during filament extrusion.
[0050] Continuing with Figure 7, after the dyeing operation 360, the woven fabric is proceeds
to finishing 270, bedding article assembly 280, and then packaging 290, similar to
the final stages of method 200 described above.
[0051] The method 200 and method 300 as described above can be used to form woven chambray
fabrics with the following exemplary constructions, noted as example A through example
L below. In the examples A through L, each fabric construction includes one of several
types of dyed weft yarns. In other words, for each example A-L shown below, the exemplary
fabric was formed with second weft yarns 44 being either a) dope dyed, b) package
dyed, or c) yarn dyed. This is noted in the examples with the parenthetical "(dope
dyed/package dyed/yarn dyed yarn)." The examples A-L are suitable for bedding articles
and colorfast to one or more household or cosmetic ingredients.
Example A
[0052]
Weave |
1x1 Plain Weave |
Thread Count (TC) |
150 |
Warp Yarn |
30 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 32 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
2nd Weft Yarn:100 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
76 |
PPI |
68 |
Example B
[0053]
Weave |
Plain Weave |
Thread Count (TC) |
180 |
Warp Yarn |
40 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 32 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
2nd Weft Yarn:100 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
100 |
PPI |
70 |
Example C
[0054]
Weave |
Plain Weave |
Thread Count (TC) |
200 |
Warp Yarn |
40 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 32 Ne |
|
1st Weft Yarn: 80 Ne (undyed cotton) |
|
2nd Weft Yarn:100 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
100 |
PPI |
90 |
Example D
[0055]
Weave |
4/1 Satin base Dobby Dots/Diamond : |
Thread Count (TC) |
265 |
Warp Yarn |
60 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 32 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
2nd Weft Yarn:100 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
165 |
PPI |
90 |
Example E
[0056]
Weave |
4/1 Satin base Dobby Stripes |
Thread Count (TC) |
265 |
Warp Yarn |
60 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 32 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
2nd Weft Yarn:100 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
165 |
PPI |
90 |
Example F
[0057]
Weave |
4/1 Satin base Dobby various Jacquard |
Thread Count (TC) |
265 |
Warp Yarn |
60 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 32 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
2nd Weft Yarn:100 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
165 |
PPI |
90 |
Example G
[0058]
Weave |
Plain Weave |
Thread Count (TC) |
150 |
Warp Yarn |
30 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 32 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
|
2nd Weft Yarn:75 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
76 |
PPI |
68 |
Example H
[0059]
Weave |
Plain Weave |
Thread Count (TC) |
180 |
Warp Yarn |
40 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 38 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
2nd Weft Yarn:75 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
100 |
PPI |
70 |
Example I
[0060]
Weave |
Plain Weave |
Thread Count (TC) |
200 |
Warp Yarn |
40 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 38 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
2nd Weft Yarn:75 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
100 |
PPI |
90 |
Example J
[0061]
Weave |
4/1 Satin base Dobby Dots/Diamond: |
Thread Count (TC) |
265 |
Warp Yarn |
60 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 38 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
2nd Weft Yarn:75 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
165 |
PPI |
90 |
Example K
[0062]
Weave |
4/1 Satin Base Dobby Stripes |
Thread Count (TC) |
265 |
Warp Yarn |
60 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 38 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
|
2nd Weft Yarn:75 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
165 |
PPI |
90 |
Example L
[0063]
Weave |
4/1 Satin base Dobby Jacquard |
Thread Count (TC) |
265 |
Warp Yarn |
60 Ne Cotton |
Weft Yarn |
Weft Yarn Assembly Count: 38 Ne |
1st Weft Yarn: 80 Ne (undyed cotton) |
2nd Weft Yarn:75 denier (dope dyed/package dyed/yarn dyed yarn) |
EPI |
165 |
PPI |
90 |
[0064] Several exemplary woven chambray fabrics made in accordance with the present disclosure
were evaluated to determine their suitability for bedding uses. Table 2 below summarizes
the structural attributes of these exemplary fabrics. In accordance with the present
disclosure, it is believed that the woven chambray fabrics as described herein are
durable, soft, and exhibit colorfast properties to various household and cosmetic
compounds commonly found in a consumer's home. Exemplary woven chambray fabrics were
tested to determine a) appearance changes (smoothness) due to repeated launderings
using "Appearance of Apparel and Other Textile End Products after Repeated Home Laundering,
AATCC Test Method 143-2006;" b) colorfastness to benzoyl peroxide; c) colorfastness
to chlorine using "Quick Methods for Colorfastness to Chlorine and Non-Chlorine Bleach,
AATCC TS-001;" d) colorfastness to non-chlorine bleach using "Quick Methods for Colorfastness
to Chlorine and Non-Chlorine Bleach, AATCC TS-001;" and e) colorfastness to active
cosmetic ingredients found in several cosmetic products. For all colorfastness data
compiled herein, colorfastness was determined by assigning a value between 1.0 to
5.0 after the sample was subjected to the specified test condition, as is known to
a person of skill in the textile arts. A rating of 1.0 means that there has been a
significant shade change after the sample is subjected to the specified test condition.
A rating of 5.0 indicates no or minimal shade change after the sample has been subjected
to the specified test condition. Shade change ratings of 4.0 or higher are indicative
more colorfast materials compared to samples where a shade change rating of 3.0 or
lower is observed.
[0065] Table 2 includes woven construction, total thread count, warp yarn fiber type, weft
yarn assembly construction, color, and % of total fiber in the fabric (by weight).
For each example, the first weft yarn is spun staple yarn comprising cotton fibers,
and the second weft yams is dyed continuous filament yarn formed from PET. The second
weft yarns in examples 1, 3, 5, 7, and 9 are dope dyed continuous filament yarns.
The second weft yarns in examples 2, 4, 6, and 8 are yarn-dyed continuous filament
yarns as that phrase is defined in the present disclosure. The color indicated is
therefore the color applied to the second weft yarn in each example.
Table 2 Woven Chambray Fabrics Test Samples
Ex. |
Woven Design |
Thread Count |
Warp Yarn |
1st Weft Yarn |
2nd Weft Yarn |
Color |
% Cotton |
1 |
Percale |
180 |
Cotton |
Cotton |
PET |
Blue |
70% |
2 |
Percale |
180 |
Cotton |
Cotton |
PET |
Lt. Blue |
70% |
3 |
Percale |
180 |
Cotton |
Cotton |
PET |
Deep Purple |
70% |
4 |
Dobby Dot |
265 |
Cotton |
Cotton |
PET |
Green |
70% |
5 |
Dobby Dot |
265 |
Cotton |
Cotton |
PET |
Blue |
70% |
6 |
Diamond |
265 |
Cotton |
Cotton |
PET |
Lt. Purple |
70% |
7 |
Diamond |
265 |
Cotton |
Cotton |
PET |
Mauve |
70% |
8 |
Sateen |
265 |
Cotton |
Cotton |
PET |
Umber |
70% |
9 |
Sateen |
265 |
Cotton |
Cotton |
PET |
Blue |
70% |
[0066] Table 3 below contains data for example 1. The impact of laundering on fabric appearance
for example 1 was evaluated under AATCC 143-2006 (Test No. 1 (III) A (ii)). As shown
in Table 3 below, after 5 washes a smoothness rating of 3.5-4.0 was observed. After
10 washes, a smoothness rating of 3.5-4.0 was observed. Colorfastness to benzoyl peroxide
was determined by exposing the example to benzoyl peroxide for 8 hours. The shade
change was observed at the conclusion of the 8 hour period. In this case, a shade
change rating of 4-4.5 was observed for example 1. Example 1 was evaluated to determine
colorfastness to chlorine bleach under test method AATCC TS-001. In this case, a shade
change rating of 4.0 was observed for chlorine bleach. Finally, example 1 was also
evaluated to determine colorfastness to non-chlorine bleach under test method AATCC
TS-001. A shade change rating of 4.0/4.5 was observed for non-chlorine bleach. Example
fabric 1 has suitable appearance to repeated laundering and was found to be colorfast
to benzoyl peroxide, chlorine, and non-chlorine bleach.
Table 3 Test Date for Example Fabric 1
Test |
Shade Rating |
Appearance Changes (smoothness) after 5 washes |
3.5/4.0 |
Appearance Changes (smoothness) after 10 washes |
3.5/4.0 |
Colorfastness to benzoyl peroxide |
4.5 |
Colorfastness to chlorine (AATCC TS-001) |
4.5 |
Colorfastness to non-chlorine bleach (AATCC TS-001) |
4.5 |
[0067] Table 4 below contains data for examples 2-9 (summarized in table 2) related to colorfastness
to active ingredients in various cosmetic products. Under this test, each exemplary
fabric 2-9 was exposed to the cosmetic materials listed in the far left column in
table 4 for 24 hours. After 24 hours of exposure, the shade change of each example
was evaluated. As shown in table 4, a shade rating of at least 4.5 was observed for
each example 2-9, for all cosmetic products evaluated. The shade change rating indicates
that the exemplary woven chambray fabrics are colorfast to the cosmetic products and
their active ingredients. Furthermore, it may be observed that the colorfastness to
cosmetics ingredients is consistent across different embodiments of the yarn assembly.
For instance, it would appear that woven fabrics are colorfast to cosmetic ingredients
when the second weft yarn is a dope dyed continuous filament yarn. Alternatively,
the woven chambray fabrics are colorfast to cosmetic ingredients when the second weft
yarn is a yarn-dyed continuous filament yarn.
Table 4 Colorfastness Shade Ratings for Active Ingredients in Cosmetics Products
|
Examples |
Cosmetic(Ingredient) |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
Clean & Clear Adv. Acne Spot Treatment (2 % Salicylic Acid) |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
Clean & Clear Persa Gel 10 (10% Benzoyl Peroxide) |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
Roc Retinol Correxion Deep Wrinkle Night Cream (Retinol) |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
Arm & Hammer Teeth Whitening Booster (Hydrogen Peroxide) |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
4.5 |
[0068] While the disclosure is described herein using a limited number of embodiments, these
specific embodiments are not intended to limit the scope of the disclosure as otherwise
described and claimed herein. The precise arrangement of various elements and order
of the steps of articles and methods described herein are not to be considered limiting.
For instance, although the steps of the methods are described with reference to sequential
series of reference signs and progression of the blocks in the figures, the method
can be implemented in a particular order as desired.
1. A woven chambray fabric, comprising:
a plurality of warp yarns, each warp yarn including natural fibers;
a plurality of weft yarns interwoven with the plurality of warp yarns, each weft yarn
defining a weft yarn assembly, the weft yarn assembly having a first weft yarn, a
second weft yarn that extends alongside the first weft yarn, and a plurality of consolidation
regions where the first weft yarn and the second weft yarn are coupled to each other,
and the first weft yarn is a spun staple yarn that includes natural fibers and the
second weft yarn is a dyed continuous filament yarn, wherein the second weft yarn
is dyed a color that is different from a color of the first weft yarn and each warp
yarn so as to define the woven chambray fabric.
2. The woven chambray fabric of claim 1, wherein the woven fabric is substantially colorfast
to one or more cosmetic ingredients, and preferably wherein the one or more cosmetic
ingredients include benzoyl peroxide, retinol, and salicylic acid.
3. The woven chambray fabric of claim 1, wherein the woven fabric is substantially colorfast
to chlorine bleach and non-chlorine bleach.
4. The woven chambray fabric of claim 1, wherein the second weft yarn is either a dope
dyed continuous filament yarn or is a not a dope dyed continuous filament yarn.
5. The woven chambray fabric of claim 1, wherein the second weft yarn includes continuous
filaments that have an internal filament morphology, wherein the second weft yarns
have dye molecules that are integrated into the internal filament morphology.
6. The woven chambray fabric of claim 1, wherein the natural fibers of the warp yarns
are cotton fibers.
7. The woven chambray fabric of claim 1, wherein the warp yarns include any of a blend
of the natural fibers and a blend of the natural fibers and synthetic fibers.
8. The woven chambray fabric of claim 1, wherein the natural fibers of the first weft
yarn are cotton fibers.
9. The woven chambray fabric of claim 1, wherein the second weft yarn is a polyethylene
terephthalate (PET) continuous filament yarn.
10. The woven chambray fabric of claim 1, where each warp yarn has a yarn count in a range
between about 20 Ne to about 120 Ne.
11. The woven chambray fabric of claim 1, wherein each weft yarn assembly has a count
in a range between about 20 Ne to about 120 Ne.
12. The woven chambray fabric of claim 1, wherein the first weft yarn has a count between
about 60 Ne and about 120 Ne, and the second weft yarn has a count in between about
50 denier and about 200 denier.
13. The woven chambray fabric of claim 1, wherein the natural fibers of the warp yarns
are cotton fibers, and the natural fibers of the first weft yarn are cotton fibers,
such that, the woven fabric is between 50 % to about 80 % by weight of cotton fibers.
14. The woven chambray fabric of claim 1, further comprising of a total thread count from
100 to 1000, preferably wherein the total thread count is from any one of 100 to 500,
500 to 700, and 700 to 1000.
15. The woven chambray fabric of claim 1, further comprising a) from 50 warp ends per
inch to 350 warp ends per inch, and b) from 50 weft ends per inch to 700 weft end
per inch.
16. The woven chambray fabric of claim 1, wherein the first weft yarn and the second weft
yarn are substantially parallel with respect to each other along a length of the weft
yarn assembly that extends between adjacent consolidation regions, preferably wherein
the length is between about 0.25 cm to about 3.00 cm, and more preferably wherein
the length is between about 1.00 cm and about 2.50 cm.
17. The woven chambray fabric of claim 1, wherein the consolidation regions are where
the first weft yarn and the second weft yare are entangled with each other.
18. A method of manufacturing a woven chambray fabric, the method comprising the steps
of:
forming a yarn assembly that includes a first yarn, a second yarn that extends alongside
the first yarn, and a plurality of consolidation regions where the first yarns and
the second yarns are coupled together, wherein the first yarn is a spun staple yarn
that includes natural fibers and the second yarn is a continuous filament yarn; and
weaving a plurality of warp yarns with a plurality of the yarn assemblies to form
the woven fabric, wherein the warp yarns include natural fibers.
19. The method of claim 18, wherein the step of forming the yarn assembly includes coupling
the first and second yarns together with an air punch device so as to define the plurality
of consolidation regions.
20. The method of claim 18, wherein the step of forming the yarn assembly includes arranging
the first and second yarns so as to be substantially parallel with respect to each
other along a length of the yarn assembly between adjacent consolidation regions.
21. The method of claim 18, further comprising applying color to the second yarn prior
to weaving, and preferably wherein applying color to the second yarn prior to weaving
includes dope dyeing the second yarn.
22. The method of claim 21, wherein the second weft yarn is a polyethylene terephthalate
(PET) yarn, wherein applying color to the second yarn prior to weaving includes applying
disperse dyes to the second yarn.
23. The method of claim 18, further comprising applying color to the second yarn after
weaving.
24. The method of claim 23, wherein the second weft yarn is a polyethylene terephthalate
(PET) yarn, and applying color to the second yarn after weaving includes applying
disperse dyes to the woven fabric.