[0001] The invention relates to a safety fabric for protective clothing. More particularly
the invention relates to a safety fabric for chainsaw safety clothing, which is specially
adapted to resist chainsaws or other sawing machines from entering through the fabric
and potentially come into contact with a person wearing the protective clothing (wearer),
while the chain saw or sawing machine is still moving. The invention further relates
to protective garment comprising multiple layers of said safety fabric and a method
for manufacturing said safety fabric.
[0002] Sawing machines, and especially chainsaws, are notorious for their danger in use
and potential injuries to their users. In order to reduce the danger of a chainsaw
and other sawing machines injuring their user, various protective fabrics have been
proposed. One class of protective fabrics contain a layer of relative loose fibre
material of high tensile strength. In the further part of this patent application
when reference is made to a chain saw also other types of saws are included and referred
to. When a chainsaw comes in contact with this material, a plurality of fibres is
caught by the chain links of the saw and entangle and wrap around the saw and get
stuck into the drive sprocket, blocking the chain and sprocket from any further motion.
The fibre layer may be a non-woven, relative loose layer of fibres in between two
woven or knit fabric layers. An example of such fabric may be found in the European
patent application
EP 2 409 585.
[0003] In a further improvement, the fibres of high tensile strength are knitted as inlays
in between knitted layers. By inserting the high tensile fibres as inlays, the fibres
are connected with the fabric, such that the quality throughout the fabric may be
more precisely determined. Furthermore the amount of high tensile fibres may be well
distributed and well defined over the entire fabric. However, a drawback of incorporating
such high tensile inlay fibres directly into the fabric, is that the elasticity of
the knit fabric is reduced. This is especially true for the elasticity in the direction
parallel to the inlay fibres. Because of this reduced elasticity, the garments made
of said fabric are less comfortable to wear and adhere less well to the shapes and
motion of the wearer.
[0004] Accordingly it is the object of the invention to improve the protective fabric as
proposed in the state of the art or mitigating or solving the problems related to
the state of the art while maintaining the advantages thereof. More specifically,
the objective of the invention is to provide a fabric that offers well-defined and
reliable protection to the wearer and at the same time is comfortable to wear.
[0005] The invention thereto proposes a safety fabric for protective clothing, in particular
chainsaw safety clothing, comprising: a knitted fabric, and a number of cut-resistant
inlay threads incorporated in the knitted fabric, wherein the inlay threads are configured
to be pulled out of the fabric upon contact with a running chainsaw,
characterised in that the inlay threads are at predetermined intervals provided with
loop portions. A knitted fabric has good stretchability and therefore moulds and moves
easily with body movements. By using a knitted fabric, the fabric possesses an inherent
elasticity which adds to the wearing comfort of garments comprising such fabric. Due
to the incorporation of inlay threads, commonly made from fibres with a high tensile
strength, directly into the fabric, the placement and orientation of the fibres may
be closely determined. This results in a fabric that is of constant quality and guarantees
a certain level of safety for the wearer. At the same time, the loops, which may be
formed by portions of overfed floating inlay threads, provide a slack in the inlay
threads that are otherwise non-elastic and unable to stretch with the naturally stretchy
knitted fabric in at least a direction parallel to the inlay fibres. The slack in
the inlay threads thus allows the fabric material (which acts as the carrier /substrate
for the inlay threads) to stretch also in a direction parallel to the inlay fibres.
The stretchability of the fabric provides protective garments, into which this fabric
is incorporated, to closely follow the bodily curves or shapes as well as the movements
of the wearer, allowing for a good fit and articulation to provide enhanced range-of-motion.
This renders the fabric according to the invention more comfortable to wear, while
the effect of the high tensile inlay fibres upon contact with a chainsaw getting entangled
in the chain and the sprocket of the chainsaw is being maintained.
[0006] In an embodiment of a safety fabric according to the invention, the inlay threads
may run weftwise across the fabric, following adjacent courses of the fabric. Herein,
the weftwise direction is equivalent to the width direction of the fabric, which is
to be understood as the direction in the plane of the fabric, perpendicular to the
length of the knitted fabric. The length of the knitted fabric is commonly understood
as the direction in which the fabric is produced. As the weftwise inlayed threads
follow the courses of the fabric, the threads are relatively loosely arranged in the
fabric, which ensures that the inlay threads are easily pulled out of the fabric upon
contact with a (chain)saw. In order to let the inlay threads run weftwise across the
fabric, the inlay threads are generally inlayed weftwise into the fabric layer during
the knitting process. This allows for the inlay threads to be inlayed after each knitted
course, which simplifies the feeding of the inlay threads and therefore the production
process. Moreover, due to the weftwise application of the inlay threads, the inlay
thread density that is employed may be easily varied in lengthwise direction of the
fabric by changing the inlay frequency during knitting.
[0007] In a further embodiment of a safety fabric according to the invention, the fabric
may comprise a weft knitted fabric. In weft knitting, the knitted loops of thread
making up the fabric are formed across the width of the fabric, wherein each weft
thread is fed approximately at a right angle to the direction in which the fabric
is formed. An important advantage of the weft knitted fabric layer is that it possess
stretchability in both weft (width) and warp (length) direction, contrary to warp
knitted fabrics that are commonly less elastic and wherein stretch is mainly limited
to a single direction of the fabric. The application of a weft knitted fabric layer
thus allows for the construction of protective clothing that is more elastic and therefore
conforms better to (i.e better follows) the shape of the wearer and the wearer's movements.
In addition, it is commonly understood that weft knitting is a more versatile method
of fabric production in terms of both the range of fabric structures that may be produced
and the yarn types that may be utilized. Weft knitted fabric may therefore be engineered
to give a variety of properties and structures, thus allowing for various knitting
constructions. Last, weft knitting involves compared to warp knitting a less complicated
process leading to less expensive manufacturing processes.
[0008] In yet another embodiment of a safety fabric according to the invention, the fabric
may comprise a double knitted fabric. A double knitted fabric is eminently suited
to act as a carrier layer or substrate for the inlay threads as it essentially comprises
two fabric layers, one directly behind the other, that form the outer faces of the
fabric and enclose a space in which an inlay thread may be inlayed. Double knitted
fabric differs from two layers of single knitted fabric in that at certain intervals
dependent on the specific knitting pattern used, stitches of the front face of the
fabric are interconnected with stitches on the rear face of the fabric by means of
yarns that cross over between the two fabric layers, thereby crosslinking the opposing
fabric layers. Commonly this crosslinking is the result of knitting with a single
yarn on the needles of opposing (cylinder and dial) needle beds. The crosslinks that
result herefrom define channels that run in width direction across the fabric and
form pockets that may hold one or more floating inlay threads. The width of the pockets
(which width is defined in a lengthwise direction of the fabric) may be varied based
on whether each subsequent course of the front and rear fabric layers are interconnected
with a course of the opposing fabric layer (which results in pockets of small width)
or that each set of opposed interconnected courses is alternated with one or more
sets of opposed non-connected courses (which results in pockets of larger width).
The width of these widthwise extending pockets is based amongst others on the thickness
of the inlay threads and the number of inlay threads incorporated in a single pocket.
Pockets of larger width are necessary to accommodate multiple inlay threads or thicker
inlay threads to ensure low-friction movement of the inlay threads in their pockets.
The wider the pockets, the easier the inlay threads are able to move inside the pockets,
resulting in a more elastic fabric, and the easier the inlay threads can be pulled
out of the fabric upon contact with a (chain)saw. In a further embodiment of a safety
fabric according to the invention, the double knitted fabric may in a weft direction
be alternated with portions of single knitted fabric, configured to form pockets extending
in a warp (length) direction of the fabric to accommodate the loop portions of the
inlay threads. Single knitted fabric, also known as single jersey fabric or single
fabric, is a weft knitted fabric that has one side consisting of face stitches and
the opposing side consisting of back stitches. Where double knitted fabric portions
comprise crosslinks that connect the front and rear fabric layers, the portions of
single knitted fabric are formed by two opposing, unconnected single knitted fabric
layers. When the double knitted parts of the fabric layer are alternated with two
layers of single knitted fabric, knitted back to back, a fabric thus results that
has a consistent appearance on both sides of the fabric, but lacks along the single
knitted fabric parts the crosslinking stitches that interconnect the opposing fabric
layers along the double knitted fabric parts. The alternating of double knitted fabric
with portions of single knitted fabric in a weft direction creates pockets or channels
running in lengthwise direction through the fabric. The width of these lengthwise
extending pockets can be varied by changing the number of stiches knitted between
two consecutive crosslinking stitches. The pockets may accommodate the (floating)
loop portions of the inlay threads in a loose fashion, ensuring that the inlay threads
possess a certain slack and/or freedom of movement in their lengthwise direction at
least within the pockets of single knitted fabric, which allows the fabric to remain
stretchable in weftwise direction. By having the loops of the inlay threads in dedicated
pockets, the distribution of the loops of the inlay threads and thus the properties
of the material such as the wearing comfort, the stretch and the safety effect may
be kept constant throughout the material.
[0009] The inlay threads may comprise fibres selected from the group consisting of: polypropylene
fibres, polyester fibres, polyamide fibres, aramid fibres, Kevlar fibres and Dyneema
fibres and/or any other suitable inlay fibres and any combination of the before listed
fibres. Suitable inlay fibres are to be understood here as a fibres that may be worked
into threads of relatively high tensile strength, meaning that their tensile strength
is (considerably) higher than the yarns out of with the surrounding fabric layer is
constructed. Moreover, the inlay fibres preferably have a smooth, slick surface that
minimizes friction between the inlay threads and the fabric substrate upon their relative
movement. Such inlay threads are capable of being easily drawn out of the surrounding
fabric layer(s) and wrapping around a chainsaw's drive sprocket, locking it solid
and halting the chain, limiting damage to the operator.
[0010] In addition a face and/or a back of the fabric may also comprise fibres selected
from the group consisting of: polypropylene fibres, polyester fibres, polyamide fibres,
aramid fibres, Kevlar fibres and Dyneema fibres or a combination thereof to benefit
from their relatively high tensile strengths and/or other specific beneficial properties.
[0011] The invention also relates to a protective garment comprising multiple superimposed
layers of safety fabric according to the invention. The stacking of various layers
may provide additional security and may thus be applicable for e.g. higher chain saw
speeds or coexisting, more stringent safety classes. In an alternate embodiment of
the protective garment, the inlay threads of adjacent fabric layers have mutually
different orientations. Together with the changing orientation of the inlay threads,
the courses and wales of the different fabric layers hereby generally run in mutually
different directions as well. Due to the mutually different orientations of the inlay
threads in each of the adjacent fabric layers, a fine mesh of inlay threads is formed
that provides a proper and homogeneous protection layer against incoming chainsaws,
irrespective of the angle at which the chainsaw may contact the safety fabric.
[0012] The invention further relates to a method for manufacturing a safety fabric, comprising
the following steps: A) feeding at least one yarn to a set of needles contained within
at least one needle bed; B) knitting with the fed yarn at least one course of stitches
that forms part of a face side and/or a back side of the fabric; C) feeding at least
one inlay thread onto the unconnected stitches of the knitted courses, thereby inlaying
the inlay thread between said unconnected stitches; D) knitting at least one new course
of stitches, wherein the unconnected stitches of the previous knitted course are connected
to the new course of stitches wherein the inlay thread is incorporated in the fabric;
E) repeating step C) and D); wherein during manufacturing of the safety fabric, a
tension on the yarn is applied, which tension exceeds a tension applied on the inlay
thread. The just described method allows for the manufacturing of a weft knitted safety
fabric according to the invention in a straightforward and efficient manner. By differentiating
between the tension applied on the yarn that makes up the fabric (substrate) and the
tension applied on the inlay thread during the manufacturing of the safety fabric,
wherein the tension applied on the yarn exceeds the tension applied on the inlay thread,
excess inlay thread is created upon release of the tension on the fabric after manufacturing,
which excess of inlay thread forms loop portions in the inlay thread. This difference
in tension could also be the result of overfeeding the inlay thread during inlaying,
thereby providing the inlay thread with a negative tension. Overfeeding should hereby
be understood as a process wherein the feeding rate (i.e. the feeder throughput rate)
of the inlay thread exceeds the velocity of the feeder relative to the needle bed(s).
Due to these loop portions, stretch portions are created that allow the fabric to
retain its inherent elasticity in lengthwise direction of the inlay threads. At the
same time, by performing the above described method, the inlay threads are directly
incorporated into the fabric layer. This creates a homogeneous product that behaves
in a predictable manner upon contact with a running chainsaw or other sawing equipment,
guaranteeing a certain level of safety for the wearer.
[0013] It is conceivable that the inlay threads are not inlayed after the knitting of every
new course, but are inlayed after the knitting of every other course or any other
frequency in order to change the density of inlay threads in the resulting safety
fabric. In this case, steps B) and D) are performed directly after each other for
a number of times without performing step C) in between. It is also possible that
multiple courses of stitches are knitted simultaneously by the use of multiple feeders
and corresponding threads.
[0014] It is possible that during knitting a safety fabric according to the invention, the
feeder courses are knit on the needles of opposing needle beds over at least a part
of a weft direction of the fabric, thereby forming a double knitted row of stitches.
In order to perform the just described method, two sets of opposed needles, contained
within opposing needle beds, may be provided, wherein two feeders may be provided
to feed separate yarns to separate opposing needles. As is mentioned before, it is
advantageous if the fabric layer comprises a double knitted fabric, as such a fabric
provides easy accommodation of the inlay threads.
[0015] In addition, it is possible that during knitting the feeder courses are knit on the
needles of a single needle bed only over at least a part of a weft direction of the
fabric, thereby forming a single knitted row of stitches. The single knitted rows
of stitches of consecutive courses are hereby connected to each other to form one
or more pockets or channels running in lengthwise (warp) direction through the fabric.
Pockets like these may accommodate the loop portions of the inlay threads and add
to the stretchability of the fabric as is explained earlier.
[0016] In an embodiment of the method for manufacturing a safety fabric according to the
invention, the safety fabric is knitted by means of circular knitting. Circular knitting
is to be understood as the knitting technique that is used by all those weft knitting
machines whose needle beds are arranged in circular cylinders and/or dials, including
latch, bearded or compound needles machinery. A circular knitting process results
in a tubular knit that may be cut open to obtain a flat fabric. The advantage of circular
knitting is that large production volumes may be obtained in a relatively efficient
manner, for example by using multiple feeders and corresponding threads during the
knitting process. It is however also conceivable that other knitting techniques performed
by other knitting machines such as flat knitting machines are applied to manufacture
a safety fabric according to the invention.
[0017] In order to further elucidate the invention, exemplary, non-limitative embodiments
will be described with reference to the figures. In the figures:
- figure 1 shows a front view of a part of a safety fabric according to an embodiment
of the invention;
- figure 2 shows a cross-sectional view of a part of a safety fabric according to an
embodiment of the invention;
- figure 3 shows a schematic three-dimensional view of a part of a knitting machine
suited for the manufacture of a safety fabric according to the invention; and
- figure 4 shows a knitting notation for a safety fabric according to an embodiment
of the invention.
- figure 5 shows a knitting notation for a safety fabric according to another embodiment
of the invention.
[0018] The figures represent specific exemplary embodiments of the invention and should
not be considered limiting the invention in any way or form. Throughout the description
and the figures corresponding reference numerals are used for corresponding elements.
[0019] The expression "inlay threads" used herein is to be understood as, though not to
be considered limited to fibres or threads of relative high tensile strength when
compared to the fibres of the material itself. Examples of suitable fibre materials
are polypropylene, polyester, polyamide, Dyneema/Spectra, Carbon, Aramid and Kevlar.
However other suitable fibres and/or combinations may be applied as well.
[0020] In figure 1, a front view of a part of a safety fabric 1 according to an embodiment
of the invention is presented. The safety fabric 1 comprises at least one knitted
fabric 2, composed of multiple courses 3 and multiple wales 4, which respectively
run in a width (weft) direction and a length (warp) direction of the fabric. Each
of the courses 3 comprises yarn 5 being formed into a number of stitches 6, concatenated
in both the width direction and length direction of the fabric. As a part of the fabric
2 of the shown embodiment of the safety fabric 1 comprises a double knitted fabric
(which in this specific example is an interlock knit fabric), a single course 3 hereby
comprises multiple threads or yarns 5. The yarns 5 in these double knitted (interlock)
portions 7 of the fabric 2 cross over each other between wales 4, thereby forming
consecutive stitches 6 of a single course 3, which stitches 6 alternately form part
of the front face and the rear face of the fabric. The width-wise concatenated stitch
portions enclose channels 8 that run in width direction through the fabric 2. These
channels 8 are situated between the front face and the rear face of the fabric and
are at least along the double knitted (interlock) portions 7 mutually separated by
the crosslinking yarns 5. Each channel 8 may contain one or more inlay threads 9,
which inlay threads 9 are at predetermined intervals provided with loop portions 10.
The loop portions 10 of the inlay threads 9 are contained within pockets 11 that run
in a length direction of the fabric 2. The pockets 11 are a result of alternating
the interlock portions 7 with portions of single knitted fabric 12, also referred
to as single (jersey) fabric. The plain fabric portions 12 of the fabric 2 are characterised
by the lack of cross-over yarns that crosslink the front face and rear face of the
fabric. This creates single and continuous pockets 11 that run parallel to the wales
of the fabric and accommodate the loop portions 10 of the inlay threads 9. Within
these pockets 11, the inlay threads 9 are able to freely move between the front face
and the rear face of the fabric. This creates elastic portions within the fabric that
allow the fabric 2 to stretch in a width direction (which corresponds to the direction
of the inlay threads 9). Furthermore note that as the safety fabric 1 in this specific
embodiment comprises interlock knit portions 7, which are reversible balanced, and
a back-to-back knitted plain fabric portions 12, the front face and the rear face
of the fabric 2 have an identical appearance.
[0021] Figure 2 depicts a cross-sectional view of a part of a safety fabric 1 according
to an embodiment of the invention, showing features of the safety fabric 1 similar
to those shown in figure 1. Clearly shown are the channels 8 that run width-wise across
the fabric 2 between the front face and the rear face of the fabric and each contain
an inlay thread 9. It should be noted that it is likewise possible that each of the
channels 8 contain multiple inlay threads 9. As the depicted fabric 2 is an interlock
knit, the sinker loops of opposing stitches 6 contained within a single course 3 cross
over each other, thereby crosslinking the front face and the rear face of the fabric
and mutually separating the channels 8.
[0022] Figure 3 depicts a schematic three-dimensional view of a part of a knitting machine
suited for the manufacture of a safety fabric according to the invention. The part
of the knitting machine shown could be part of a circular or tube knitting machine,
or a flat knitting machine, also referred to as a flatbed or V-bed knitting machine.
In figure 3, multiple needles 13 are shown, that are either part of a first set of
needles slideably mounted in a trick 14 of a first needle bed 15, in a circular knitting
machine also referred to as a cylinder, or part of a second set of needles slideably
mounted in a trick 14 of a second needle bed 16, in a circular knitting machine also
referred to as a dial. In the shown embodiment the needles are placed directly opposite
to each other in interlock gating. It is however also conceivable that the mutual
alignment of the needles is different, based on the specific knitting pattern that
is used to obtain a safety fabric according to the invention. The position of the
needles 13 as shown in figure 3 represent the "knock over" position, after the needles
13 are withdrawn into their tricks 14 so that the old loops 17 are knocked over and
the new loops 18 are drawn through them. It is in this position that one or more inlay
threads 9 may be inlayed between the new, unsecured loops 18 in a width direction
of the fabric. The inlaying of the inlay threads 9 and the feeding of yarns 5 to the
hooks 19 of the needles 13 is performed by means of feeders (not shown) in any manner
commonly known in the textile industry.
[0023] Figure 4 depicts a knitting notation of a stitching pattern, for generating a safety
fabric 1 according to an embodiment of the invention, wherein double knitted (interlock
knit) portions 7 of the fabric layer 2 are in a weft direction alternated with portions
of single knitted fabric 12. The stitching pattern shows the use of two yarn feeds:
the even feeder 20 and the odd feeder 21. Each feeder 20, 21 provides a separate yarn
5 that knits on separate alternate opposing needles 13 to form double knitted portions
7. The single knitted fabric portions 12 are knit by providing the separate yarns
5 on adjacent needles 13 mounted in a single needle bed 15, 16. A inlay feeder 22
for the inlay threads 9 is positioned between the even yarn feeds 20 and the odd yarn
feeds 21, to inlay an inlay thread 9 between the unsecured loops of a course 3. Upon
formation of the course 3 the inlay thread 9 is trapped between the stitches of both
surfaces of the fabric, incorporating the inlay threads 9 directly into the fabric
2. Due to the application of a tension force on the yarn 5 that exceeds a tension
force applied on the inlay thread 9 during manufacturing of the fabric, loop portions
10 are created in the inlay threads 9 at predetermined intervals. Although figure
4 shows a stitching pattern for a weft knitted fabric layer comprising both double
knitted (interlock) portions 7 and single knitted fabric portions 12, wherein an inlay
thread 9 is incorporated in each of the courses 3, it is to be understood that either
the knitting technique or the density of inlay threads 9 may be varied without deviating
from the invention.
[0024] Figure 5 shows a knitting notation for a stitching pattern, for generating a safety
fabric 1 according to another embodiment of the invention. Analogous to the stitching
pattern in figure 4, the herein shown stitching pattern comprises double knitted portions
7 that are in a weft direction alternated with portions of single knitted fabric 12.
Inlay threads 9 are again incorporated in the fabric 2 and provided with loop portions
10. A difference with the stitching pattern depicted in figure 4 is the interval at
which the front and the rear fabric layer are interconnected by means of crosslinking
stitches 23.
[0025] In addition, the invention is to be understood not to be limited to the exemplary
embodiments shown in the figures and described in the specification. For instance
the further layers may be knitted, and further layers of inlay threads may be added
as well. Also, various knitting techniques and patterns may be used to obtain a knitted
fabric layer in which cut-resistant inlay threads are incorporated according to the
invention. These and other modifications and variations that are considered part of
the scope of the invention as outlined in the following claims.
List of reference signs
[0026]
- 1. Safety fabric
- 2. Fabric
- 3. Course
- 4. Wale
- 5. Thread/yarn
- 6. Stitch
- 7. Double knitted portion
- 8. Channel
- 9. Inlay thread
- 10. Loop portion
- 11. Pocket
- 12. Single knitted (single jersey) fabric portion
- 13. Needle
- 14. Trick
- 15. First needle bed (cylinder)
- 16. Second needle bed (dial)
- 17. Old loop
- 18. New loop
- 19. Hook
- 20. Even feeder
- 21. Odd feeder
- 22. Inlay feeder
- 23. Crosslinking stitch
1. Safety fabric for protective clothing, in particular chainsaw safety clothing, comprising:
- a knitted fabric, and
- a number of cut-resistant inlay threads incorporated in the knitted fabric,
wherein the inlay threads are configured to be pulled out of the fabric upon contact
with a running chainsaw,
characterised in that the inlay threads are at predetermined intervals provided with loop portions.
2. Safety fabric according to claim 1, wherein the inlay threads run weftwise across
the fabric, following adjacent courses of the fabric.
3. Safety fabric according to claim 1 or 2, wherein the fabric comprises a weft knitted
fabric.
4. Safety fabric according to claim 1-3, wherein the fabric comprises a double knitted
fabric.
5. Safety fabric according to claim 4, wherein the double knitted fabric is in a weft
direction alternated with portions of single knitted fabric, configured to form pockets
extending in a warp direction of the fabric to accommodate the loop portions of the
inlay threads.
6. Safety fabric according to any of the preceding claims, wherein the inlay threads
comprise fibres selected from the group consisting of: polypropylene fibres, polyester
fibres, polyamide fibres, aramid fibres, Kevlar fibres and Dyneema fibres or a combination
thereof.
7. Safety fabric according to any of the preceding claims, wherein a face and/or a back
of the fabric comprises fibres selected from the group consisting of: polypropylene
fibres, polyester fibres, polyamide fibres, aramid fibres, Kevlar fibres and Dyneema
fibres or a combination thereof.
8. Protective garment comprising multiple superimposed layers of safety fabric according
to any of the preceding claims.
9. Protective garment according to claim 8, wherein the inlay threads of adjacent fabric
layers have mutually different orientations.
10. Method for manufacturing a safety fabric, comprising the following steps:
A) feeding at least one yarn to a set of needles contained within at least one needle
bed;
B) knitting with the fed yarn at least one course of stitches that forms part of a
face side and/or a back side of the fabric;
C) feeding at least one inlay thread onto the unconnected stitches of the knitted
course, thereby inlaying the inlay thread between said unconnected stitches;
D) knitting at least one new course of stitches, wherein the unconnected stitches
of the previous knitted course are connected to the new course of stitches wherein
the inlay thread is incorporated in the fabric;
E) repeating step C) and D);
wherein during manufacturing of the safety fabric, a tension on the yarn is applied,
which tension exceeds a tension applied on the inlay thread.
11. Method for manufacturing a safety fabric according to claim 10, wherein during knitting
the feeder courses are knit on the needles of opposing needle beds over at least a
part of a weft direction of the fabric, thereby forming an double knitted row of stitches.
12. Method for manufacturing a safety fabric according to claim 10 or 11, wherein during
knitting the feeder courses are knit on the needles of a single needle bed only over
at least a part of a weft direction of the fabric, thereby forming a single knitted
row of stitches.
13. Method for manufacturing a safety fabric according to any of the preceding claims,
wherein the safety fabric is knitted by means of circular knitting.