[0001] The invention relates to a garment for a controlled environment, comprising:
- a torso portion with a longitudinal axis and a first and second side, at a distance
from and substantially parallel to the longitudinal axis, a lower and an upper edge
substantially perpendicular to the longitudinal axis, extending between the first
and second side, which torso portion is provided with a first and second arm aperture,
arranged near the upper edge along the first and second side respectively, a first
and second leg aperture, extending between the longitudinal axis and the first and
second side respectively and a head aperture, provided along the upper edge;
- a first and a second sleeve, both extending from a connected end, connected to the
first and second arm aperture of the torso portion respectively, to a free end;
- a first and a second leg part, both extending from a connected end, connected to the
first and second leg apertures of the torso portion respectively, to a free end;
- an access opening, for providing a wearer access to the interior of the garment; and
- closing means, such as a zipper, for closing the access opening.
[0002] In controlled environments, such as cleanrooms, most best management practices (protocols)
are based on the practices for contamination control recommended by the Institute
of Environmental Sciences and Technology (IEST). The focus of any protocol program
is to protect the integrity in the cleanroom. Whereas contamination may be due to
the product, processes or equipment in the cleanroom, operators working in the cleanroom
remain the biggest contamination for the cleanroom environment. Their clothing has
an important influence to the contamination dispersed by the people in the cleanroom.
To reduce the risk of cleanroom contamination, operators will wear garments for controlled
environments according to the preamble, such as coveralls, which will cover the body
of the operator.
[0003] Such garments for controlled environments comprise an outer surface (hereafter referred
to as the exterior) designed to come in contact with the surrounding environment and
an inner surface (hereafter referred to as the interior) which is intended to be in
contact with a wearer.
[0004] Conventionally, a bag is provided in which these garments are folded and packaged
to thereby reduce the risk of contamination before use. During this donning procedure,
the exposed exterior of the garment may become contaminated as it may get in contact
with the hands or body of the operator or the floor or walls of the locker-room in
which the garment is typically donned.
[0005] When donning the conventional garment, the operator (also referred to as wearer)
needs to find an unexposed part of the interior of the garment in the opened bag.
The wearer will need to grasp the interior, watching out not to touch (and hereby
contaminate) the exterior. Furthermore, the wearer must carefully orient the conventional
garment to a position allowing the wearer to insert his legs and arms in the garment.
[0006] Altogether, donning of such garments as well as the protocols that need to be followed
before an operator is allowed to enter a cleanroom necessitate considerable handling
and practice.
[0007] In an effort to reduce the above disadvantages, some new developments have been made.
[0008] For instance, publication
WO 2005/150217 A1 discloses a coverall which is provided with at least one grasping means in the interior
to facilitate donning as well as an opening on its crotch. In practice, donning this
type of garment requires sufficient space between operators in order to prevent the
operators, their clothing in particular, from getting in contact with each other during
donning, which would greatly increase the risk of contamination. This fact implies
that the locker-rooms need to be enlarged, which is expensive. Furthermore, this coverall
requires the operator to perform shaking motions while donning in order to lower the
garment. However, shaking motions are proscribed in cleanrooms, since shaking motions
may result in an increased release of particles.
[0009] Publication
US 2017/305649 A1 discloses a method for folding a coverall. The disclosed folding method aims to reduce
the contamination risk. The coverall is folded to provide the wearer with an obvious
grasp for handling the folded garment. Although the method of folding described allows
the wearer to grasp a portion of the interior of the coverall when he takes it from
the bag, the donning procedure remains the same as usual, which still leads to a considerable
risk of contamination.
[0010] Publication
WO 2005/065476 A2 discloses another coverall. In comparison to more traditional garments, the garment
disclosed in this document is provided with a storage pouch integral with the coverall
in which the garment can be quickly and easily stored. The aim of this protective
garment is to protect the wearer against chemical, biological, mechanical or thermal
hazards. These protective garments are made of or include a variety of materials which
should be shielded from light in order to protect the materials. Such garments should
be stored in a protective pouch. This garment also does not allow easy donning. Furthermore,
the arrangement of the access opening is disadvantageous for tasks which include the
use of dangerous products, as it may be prescribed in such a case to be able to completely
withdraw the garment with very little effort.
[0011] It is thus an object of the invention to alleviate or even obviate the above-mentioned
drawbacks.
[0012] This object is achieved with a garment according to the preamble in which the access
opening extends from a free end of the first leg part, preferably along an edge in
line with the first side towards the connected end of the first leg part, via the
first side to the connected end of the first sleeve towards near a free end of the
first sleeve, preferably along an edge proximate to the first leg part.
[0013] It has been discovered that such an arrangement of the access opening provides an
efficient and easy method for folding and donning of the garment which prevents or
at least much reduces the risk of contamination.
[0014] On the first leg part, the access opening preferably extends from the free end. Alternatively,
it may also extend only from near (not from) the free end. An elastic fixed near or
at the free end of the first leg part may in this alternative case to increase the
stability of folding the first leg part.
[0015] On the first sleeve, the access opening preferably extends to near but not to the
free end of the first sleeve, thereby leaving the free end closed.
[0016] The closing means may comprise e.g. slide fastener components, a zipper, snaps, studs,
buttons, hook and loop fastening systems, straps, ties or the like and preferably
comprise a zipper. This zipper is preferably arranged such that in the closed position,
the slider resides near or at the free end of the first leg part, while residing near
the free end of the first sleeve in the opened position.
[0017] The garment, which is preferably suitable for controlled environments such as cleanrooms
and/or may be a coverall, thus substantially corresponds to the discussed prior art
garments, whereas the arrangement of the access opening is substantially different.
[0018] It is highly preferred to arrange the access opening on the side of the garment opposite
to the side to which the wearer wearing the garment is handed, e.g. on the left side
for a right handed wearer, and vice versa.
[0019] In a first embodiment of the garment according to the invention, the garment further
comprises a pouch sized for accommodating the garment, directly or indirectly fixed
to the interior of the torso portion.
[0020] Although the garment may be provided with a separate bag, it is preferred to provide
the garment with a pouch, i.e. a bag fixed to the garment (e.g. by stitching to the
interior of the torso portion). The pouch is accessible from the exterior and sized
for (snugly) fitting the garment. This allows the side of the pouch which is, while
wearing the garment, considered the interior or the pouch, to be pulled over the garment
(when folded), forming an external cover around the garment.
[0021] Arrangement of the pouch with its aperture near and preferably even parallel to the
head aperture (or the hood, where applicable) makes it easier to pull the pouch over
the folded garment and thereby store the garment in the pouch.
[0022] In a second embodiment of the garment according to the invention, the torso portion
comprises a front and a rear side, wherein the pouch is fixed to the rear side.
[0023] Arrangement of the pouch to the rear side, which is normally facing the back of the
wearer of the garment, preferably in the interior of the torso portion, increases
comfort of use, since the pouch is less likely to be in the way when performing tasks.
[0024] In a third embodiment of the garment according to the invention, the garment comprises
a machine-readable data representation, such as a bar code or a chip, arranged in
the interior of the pouch.
[0025] It is common to provide garments with machine-readable data representations, such
as bar codes or a chip, in order to be able to identify and trace the garments, e.g
during cleaning steps or sterilization cycles. The presence of such a machine-readable
data representation, which is provided in an in-sight position on the exterior of
the garment in prior art coveralls, may provide the wearer wearing this garment with
an unappreciated feeling, especially when the machine-readable data representation
comprises a bar code, since the wearer may feel that he or she is only identified
by the machine-readable data representation.
[0026] In this embodiment however, the machine-readable data representation is arranged
and fixed to the interior of the pouch. This makes the machine-readable data representation
hidden while the wearer is wearing the garment, whereas the machine-readable data
representation remains easily accessible when the garment is folded in the pouch.
Since the pouch is integral with the garment, the identification of the garment by
means of the machine-readable data representation becomes possible.
[0027] In a fourth embodiment of the garment according to the invention, the garment comprises
handling means, such as loops, preferably comprising:
- a first loop, arranged in the interior of the torso portion along the lower edge between
the connected edges of the first and second leg part;
- a second loop, arranged in the interior of the torso portion on the second side between
the connected edge of the second leg part and the second sleeve, preferably adjacent
to the second leg part; and
- a third loop, arranged in the interior of the torso portion between the head aperture
and the pouch, preferably adjacent to the pouch.
[0028] It increases the ease of donning if the wearer is provided with instructions. Such
instructions preferably comprise handling means, preferably arranged in the interior
of the garment. Such handling means preferably comprise a number of loops, which allow
the wearer to grasp the garment by the loops.
[0029] The loops may be consecutively identifiable, e.g. numbered with numbers such as 1,
2, 3 or A, B, C, to increase the ease of use. The arrangement of the first, second
and third loop provides for ease of use when donning the garment, as will be further
explained with regard to the method for donning according to the invention.
[0030] Although the loops allow the wearer to hold the garment easily, the absence of these
loops typically does not affect the safety in terms of contamination.
[0031] In a fifth embodiment of the garment according to invention, the garment further
comprises a hood, fixed to the torso portion around the head aperture.
[0032] The provision of a hood further protects the environment from particles carried by
or produced by the wearer, e.g. from the hair. Such a hood will typically also include
a cover for covering the mouth and possibly also the nose of the wearer.
[0033] In a sixth embodiment of the garment according to the invention, the garment comprises
interlocking means, such as a snap fastener, arranged on the exterior of at least
one of the first and second leg part, which interlocking means comprise a first part,
arranged near the free end of this leg part, and a second part, arranged on this part,
cooperating with the first part, arranged between the first part and the connected
end of this leg part.
[0034] The free ends of the leg parts may be fold back towards the connected end in order
to avoid the leg parts from touching other parts, e.g. a floor, while donning. In
order to fix the leg parts in such a position, interlocking means may be provided
on the leg parts. The first and second part may typically comprise a pair of a male
and female connector, but other suitable types of interlocking means are also known
by a person skilled in the art.
[0035] In addition to the interlocking means described, the leg parts of the garment will,
just as garments according to the prior art, typically also be provided with further
interlocking means arranged at other positions, e.g. for fixing boots to the leg parts
(e.g. near and below knee level of the leg part) or for narrowing the size of the
opening at the free end of the leg part (near the free end of the leg part). The interlocking
means according to this embodiment are added in addition to these further interlocking
means, when present.
[0036] The invention further relates to a method for folding a garment, comprising the steps
of:
- a) providing a garment according to the invention;
- b) opening the closing means;
- c) after the step of opening the closing means, turning the garment inside out through
the access opening and folding the first leg part around the second leg part with
the exterior of the first and second leg part facing each other;
- d) after the step of opening the closing means and turning the torso portion inside
out, arranging the first and second sleeve substantially within the interior of the
torso portion;
- e) folding up the garment in the longitudinal direction from the free end of the leg
parts to the pouch into a substantially cuboid-shaped form;
- f) providing a bag, preferably a pouch, sized for accommodating the garment; and
- g) putting the cuboid-shaped form in the bag.
[0037] The arrangement of the access opening according to the invention allows the torso
portion to be turned inside out through the access opening with the closing means
open. The garment is typically turned inside out by grasping the interior of the torso
portion at a location near the second side and/or the upper edge, followed by pulling
the grasped location through the access opening. The second leg part and the first
and second sleeve are being enclosed by the exterior of torso part and the first leg
part which are facing inwardly, substantially hiding the exterior of the garment,
which makes the garment less prone to contamination. In this configuration, the exterior
of the front and rear side of the torso portion abut against each other.
[0038] If necessary, the garment may then be folded along lines parallel to the longitudinal
axis to reduce the width of the garment to the width of the aperture of the pouch,
after which the garment is fold from the free end of the leg part towards the head
aperture to form a substantial cuboid-shaped form, i.e. rectangular-shaped in a top
view form with a thickness which form is then put in the pouch.
[0039] If the garment also comprises a hood, the hood is arranged between the exterior of
the torso portion before the torso portion is folded to let the exterior of the front
and rear side of the torso portion touch each other.
[0040] In a first embodiment of the method for folding according to the invention, the provided
garment is a garment according to at least the first embodiment of the garment according
to the invention, wherein step g) comprises the step of pulling the pouch of the garment
around the cuboid-shaped form.
[0041] Although the provision of a separate bag is possible, the provision of a pouch provides
advantages which have been described. In this case, the side of the pouch which is
the interior when wearing the garment is pulled over the folded garment for putting
the folded garment in the pouch, thereby turning the pouch inside out.
[0042] In a second embodiment of the method for folding according to the invention, the
method further comprises the step of folding a free end of at least one of the first
and second leg part from its free end towards around a part between its free end and
its connected end.
[0043] To further prevent the leg parts from touching the floor during donning, at least
one of the first and second leg part are folded, preferably after step c). The garment
preferably comprises interlocking means for fixing the respective leg parts in this
step before step e), as is previously described.
[0044] The invention further relates to a folded garment, obtainable by a method for folding
according to the invention.
[0045] The invention further relates to a method for donning a folded garment, comprising
the steps of:
- a) providing a folded garment according to the invention, obtainable by a method according
to at least the second embodiment of the method for folding a garment according to
the invention;
- b) grasping the interior of the pouch of the folded garment, turning the contents
of the pouch inside-out;
- c) putting a first of the two legs of a wearer through the second leg part of the
garment while grasping the interior of the garment with a first hand near between
the connected ends of the first and second leg part and with a second hand between
the second leg part and the second sleeve;
- d) after having put the first leg through the second leg part, putting a first of
the two arms of the wearer, proximate to the first leg, through the second sleeve
of the garment;
- e) after having put the first arm through the second sleeve, putting the second arm
through the first sleeve of the garment and, preferably simultaneously, pulling the
head through the head aperture of the garment;
- f) after having put the second arm through the first sleeve, enveloping the first
leg part of the garment with the access opening around the second leg of the wearer;
and
- g) after having enveloped the first leg part with the access opening around the second
leg, closing the closing means of the garment.
[0046] The method for donning according to the invention provides a very efficient method
for donning the garment according to the invention which can be carried out by the
wearer of the garment all by himself, without risks of contamination compared to the
prior art.
[0047] The provision of the first, second and third loop as previously discussed thereby
provides an efficient and easy way for a wearer to determine the position near between
the connected ends of the first and second leg part (first loop), between the second
leg part and the second sleeve (second loop) and a position comfortably holding the
garment while putting a first of the two arms of the wearer, proximate to the first
leg, through the second sleeve of the garment (third loop) .
[0048] Of course, if the garment is used with a separate bag instead, the method for donning
can be performed in a merely equivalent way by replacing the second step of the method
by an equivalent step of removing the garment from a separate bag instead of an integral
pouch.
[0049] The garment may be provided with a manual comprising a description with the steps
of the method for donning according to the invention.
[0050] These and other details of the invention will be further elucidated along with the
following drawings.
Figure 1 provides a schematic view of a garment according to the invention.
Figure 2 provides a schematic view of the rear part of a leg part of the garment according
to figure 1.
Figure 3 provides a schematic view of the garment according to figures 1 and 2 in
an inside-out configuration.
Figures 4A to 4J disclose a method for folding the garment according to the invention.
Figures 5A to 5D disclose an alternative method for folding the garment according
to the invention.
Figures 6A to 6K disclose a method for donning the garment according to the invention.
[0051] Figure 1 shows a frontal view of a garment 1 with a torso portion 2 with a longitudinal
axis 3, a first side 4, a second side 5, a lower edge 6, an upper edge 7, a first
arm aperture 8, a second arm aperture 9, a first leg aperture 10, a second leg aperture
11 and a head aperture 12. A first sleeve 13 extends between a connected end 14 and
a free end 15. A second sleeve 16 also extends between a connected end 17 and a free
end 18. A first leg part 19 extends between a connected end 20 and a free end 21.
A second leg part 22 also extends between a connected end 23 and a free end 24. The
garment 1 is further provided with a hood 25 fixed to the torso portion 2 around the
head aperture 12, which hood 25 is provided with a frontal aperture 26, partly covered
by a cover 27 for covering the mouth and nose of a wearer 100 (see figures 6A to 6K).
In the interior of the garment, to the rear side of the torso portion 2, a pouch 28
sized for accommodating the garment 1 is fixed which has one opening 29 arranged adjacent
to the head aperture 12, accessible from the exterior of the garment 1. The garment
1 is provided with an access opening 30 which extends from free end 21 along an edge
31 in line with first side 4, towards the connected end 20 of the first leg part 19,
via the first side 4 to the connected end 8 (the armpit) of the first sleeve 13 towards
near the free end 15 of the first sleeve 13, along an edge 32 proximate to the first
leg part 19. The access opening 30 is provided with a zipper, of which the slider
33 is shown in the fully opened position. The garment 1 further comprises an elastic
band 34 configured for fitting around the hips of the wearer. The leg parts 19, 22
are provided with multiple sets of interlocking means, i.e. first interlocking means
35 for connecting a boot to the garment, second interlocking means 36 for narrowing
the size of the opening at the free ends 21, 24 of the leg parts 19, 22 (comprising
male parts 36A and a cooperating female part 36B or vice versa) and third interlocking
means 37 on the back side of the leg parts 19, 22 (see figure 2) which allow the leg
parts 19, 22 to be fixed in a folded configuration (see figure 5A), comprising a male
part 37A and a cooperating female part 36B or vice versa).
[0052] Figure 3 discloses the same garment 1, but from the rear side in an inside-out configuration.
From this view, it becomes clear that the interior is provided with a first 38, second
39 and third loop 40, provided with consecutive numbering.
[0053] The garment 1 is preferably folded in a method illustrated in figures 4A to 4J. From
the configuration in figure 1, the garment 1 is grasped by the free end 21 (figure
4A) and the zipper is brought in the opened position using slider 33. Then, the interior
41 of the garment 1 is grasped near the upper edge and near the second side (figures
4B, 4C), which is pulled outward (arrow 42) through access opening 30 to obtain the
garment 1 in an inside-out configuration (figure 4D), in which the edges of the head
aperture 12 are held by hands 101, 102. The leg parts 19, 22 are shortened by folding
the free end 24 around the exterior of the leg part 22 (figure 4E) and by then folding
the free end 21 around the exterior of leg part 19 (figure 4F). The sleeves, of which
sleeve 16 is shown, is folded between the interior hidden side of the garment 1 (figure
4G). Then, the garment 1 is folded along lines 42, 43 (figure 4H) parallel to the
longitudinal axis to shape the garment 1 such that when folded up (arrow 44), a substantially
cuboid-shape form 45 is obtained (figure 4I), which can then be pulled into the pouch
28, to obtain a folded garment 1 shown in figure 4J with a bar code 46 in the interior
of pouch 28 now facing outward.
[0054] Figures 5A to 5D disclose a slightly different method for folding the garment 1.
In this method, the zipper is first brought to an open position, but already before
pulling the garment 1 inside out, the free ends 21, 24 are first folded towards the
connected end 20, 23, as shown in figure 5A. Then, the garment is turned inside out,
and fold to a configuration as shown in figure 5B, with the second leg part 22 lying
inside the first leg part 19. Hood 25 and sleeves 13, 16 are also folded between the
exterior of the garment 1. After this step, the sleeve 16 is also folded between the
exterior of the garment 1 to obtain a configuration according to figure 5C. The garment
1 is then folded in the longitudinal direction towards the pouch 28 and stored in
the pouch 28 by pulling (i.e. turning the pouch inside out) over the folded garment
1.
[0055] A method of donning the garment 1 is disclosed in figures 6A to 6K. Starting from
the configuration of figure 6A, the pouch 28 is now turned 'outside-in' by the wearer
100, after which the garment 1 is grasped near the head aperture 12 (figure 6B) and
thereafter using the third loop 40 (figure 6C). Second loop 39 is brought towards
third loop 40 in hand 102, while loop 38 is held in hand 101 (figure 6D) and the operator
100 will enter the leg part 22 with leg 104 (figure 6E). Hand 102 transfers loop 40
to hand 101 (figure 6F) after which hand 102 enters sleeve 16 (figure 6G). Hand 101
now seeks arm aperture 8 and enters it with hand 101 (figure 6H), at the same time
pulling the hood 25 over the head 105 of the wearer 100 (i.e. letting the head 105
enter hood 25) to obtain the configuration according to figure 6I. The zipper 33 is
moved towards the free end 21 of the leg part 19, preferably adjacent to the position
of the free end 21 which is close to the knee of the user 100, after which the free
ends 21, 24 of the leg parts 19, 22 are unfolded e.g. by uncoupling interlocking means
(figure 6J) and, after that, the zipper 33 is entirely closed to complete the donning
procedure (figure 6K) .
1. Garment for a controlled environment, comprising:
- a torso portion with a longitudinal axis and a first and second side, at a distance
from and substantially parallel to the longitudinal axis, a lower and an upper edge
substantially perpendicular to the longitudinal axis, extending between the first
and second side, which torso portion is provided with a first and second arm aperture,
arranged near the upper edge along the first and second side respectively, a first
and second leg aperture, extending between the longitudinal axis and the first and
second side respectively and a head aperture, provided along the upper edge;
- a first and a second sleeve, both extending from a connected end, connected to the
first and second arm aperture of the torso portion respectively, to a free end;
- a first and a second leg part, both extending from a connected end, connected to
the first and second leg apertures of the torso portion respectively, to a free end;
- an access opening, for providing a wearer access to the interior of the garment;
and
- closing means, such as a zipper, for closing the access opening
characterized in that
the access opening extends from a free end of the first leg part, preferably along
an edge in line with the first side towards the connected end of the first leg part,
via the first side to the connected end of the first sleeve towards near a free end
of the first sleeve, preferably along an edge proximate to the first leg part.
2. Garment according to claim 1, further comprising a pouch sized for accommodating the
garment, directly or indirectly fixed to the interior of the torso portion.
3. Garment according to claim 2, wherein the torso portion comprises a front and a rear
side, wherein the pouch is fixed to the rear side.
4. Garment according to claim 2 or 3, wherein the garment comprises a machine-readable
data representation, such as a bar code or a chip, arranged in the interior of the
pouch.
5. Garment according to any of the preceding claims, comprising handling means, such
as loops, preferably comprising:
- a first loop, arranged in the interior of the torso portion along the lower edge
between the connected edges of the first and second leg part;
- a second loop, arranged in the interior of the torso portion on the second side
between the connected edge of the second leg part and the second sleeve, preferably
adjacent to the second leg part; and
- a third loop, arranged in the interior of the torso portion between the head aperture
and the pouch, preferably adjacent to the pouch.
6. Garment according to any of the preceding claims, further comprising a hood, fixed
to the torso portion around the head aperture.
7. Garment according to any of the preceding claims, comprising interlocking means, such
as a snap fastener, arranged on the exterior of at least one of the first and second
leg part, which interlocking means comprise a first part, arranged near the free end
of this leg part, and a second part, arranged on this part, cooperating with the first
part, arranged between the first part and the connected end of this leg part.
8. Method for folding a garment, comprising the steps of:
a) providing a garment according to any of the preceding claims;
b) opening the closing means;
c) after the step of opening the closing means, turning the garment inside out through
the access opening and folding the first leg part around the second leg part with
the exterior of the first and second leg part facing each other;
d) after the step of opening the closing means and turning the torso portion inside
out, arranging the first and second sleeve substantially within the interior of the
torso portion;
e) folding up the garment in the longitudinal direction from the free end of the leg
parts to the pouch into a substantially cuboid-shaped form;
f) providing a bag, preferably a pouch, sized for accommodating the garment; and
g) putting the cuboid-shaped form in the bag.
9. Method according to claim 8, wherein the provided garment is a garment according to
at least claim 2, wherein step g) comprises the step of pulling the pouch of the garment
around the cuboid-shaped form.
10. Method according to claim 8, 9 or 10, further comprising the step of folding a free
end of at least one of the first and second leg part from its free end towards around
a part between its free end and its connected end.
11. Folded garment, obtainable by a method according to any of the claim 8 to 10.
12. Method for donning a folded garment, comprising the steps of:
a) providing a folded garment according to claim 11, obtainable by a method according
to at least claim 9;
b) grasping the interior of the pouch of the folded garment, turning the contents
of the pouch inside-out;
c) putting a first of the two legs of a wearer through the second leg part of the
garment while grasping the interior of the garment with a first hand near between
the connected ends of the first and second leg part and with a second hand between
the second leg part and the second sleeve;
d) after having put the first leg through the second leg part, putting a first of
the two arms of the wearer, proximate to the first leg, through the second sleeve
of the garment;
e) after having put the first arm through the second sleeve, putting the second arm
through the first sleeve of the garment and, preferably simultaneously, pulling the
head through the head aperture of the garment;
f) after having put the second arm through the first sleeve, enveloping the first
leg part of the garment with the access opening around the second leg of the wearer;
and
g) after having enveloped the first leg part with the access opening around the second
leg, closing the closing means of the garment.