U.S. patent application number 15/813177 was filed with the patent office on 2018-05-31 for polytetrafluoroethylene textile and manufacturing method thereof.
This patent application is currently assigned to EVEREST TEXTILE CO., LTD.. The applicant listed for this patent is EVEREST TEXTILE CO., LTD.. Invention is credited to CHING-HAI LIANG, CHIH-JUI LIN, HUANG-SHAN LIN, CHENG-HSUAN WU.
Application Number | 20180148865 15/813177 |
Document ID | / |
Family ID | 62193542 |
Filed Date | 2018-05-31 |
United States Patent
Application |
20180148865 |
Kind Code |
A1 |
LIANG; CHING-HAI ; et
al. |
May 31, 2018 |
POLYTETRAFLUOROETHYLENE TEXTILE AND MANUFACTURING METHOD
THEREOF
Abstract
A polytetrafluoroethylene textile and manufacturing method
thereof is disclosed. The method of manufacturing the
polytetrafluoroethylene textile comprises: providing a
polytetrafluoroethylene yarn and an artificial fiber yarn; and
performing a knitting process to knit the polytetrafluoroethylene
yarn and the artificial fiber yarn together to thereby obtain the
polytetrafluoroethylene textile. The polytetrafluoroethylene
textile comprises: an artificial fiber structural layer comprising
a plurality of artificial fiber yarns; and a
polytetrafluoroethylene structural layer comprising a plurality of
polytetrafluoroethylene yarns, and a part of the
polytetrafluoroethylene yarns of the polytetrafluoroethylene
structural layer and a part of the artificial fiber yarns of the
artificial fiber structural layer are knitted together.
Inventors: |
LIANG; CHING-HAI; (Tainan
City, TW) ; LIN; HUANG-SHAN; (Tainan City, TW)
; WU; CHENG-HSUAN; (Tainan City, TW) ; LIN;
CHIH-JUI; (Tainan City, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
EVEREST TEXTILE CO., LTD. |
Tainan City |
|
TW |
|
|
Assignee: |
EVEREST TEXTILE CO., LTD.
Tainan City
TW
|
Family ID: |
62193542 |
Appl. No.: |
15/813177 |
Filed: |
November 15, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
D10B 2321/042 20130101;
D04B 21/16 20130101; D01F 6/12 20130101; D02G 3/22 20130101; D02G
3/32 20130101; D04B 1/16 20130101; D02G 3/02 20130101; D02G 3/442
20130101; D04B 1/18 20130101; D04B 21/18 20130101 |
International
Class: |
D02G 3/22 20060101
D02G003/22; D04B 1/16 20060101 D04B001/16; D04B 1/18 20060101
D04B001/18; D04B 21/16 20060101 D04B021/16; D04B 21/18 20060101
D04B021/18; D02G 3/32 20060101 D02G003/32; D02G 3/44 20060101
D02G003/44; D01F 6/12 20060101 D01F006/12 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 25, 2016 |
TW |
105139002 |
Nov 25, 2016 |
TW |
105218114 |
Claims
1. A method of manufacturing a polytetrafluoroethylene textile,
comprising: providing a polytetrafluoroethylene yarn and an
artificial fiber yarn; and performing a knitting process to knit
the polytetrafluoroethylene yarn and the artificial fiber yarn
together to thereby obtain the polytetrafluoroethylene textile,
wherein a pretreatment process is further performed before
performing the knitting process to make the polytetrafluoroethylene
yarn have at least one knit-assisting part for assisting knitting
the polytetrafluoroethylene yarn and the artificial fiber yarn
together and confining the artificial fiber yarn correspondingly to
thereby obtain the polytetrafluoroethylene textile, wherein the
knit-assisting part is an expanded structure formed by at least two
of the polytetrafluoroethylene yarns, and a part of the artificial
fiber yarn is configured to pass through the knit-assisting part to
thereby knit with the at least two of the polytetrafluoroethylene
yarns.
2. The method of claim 1, further comprising performing a
laminating process to laminate a water repellent fabric with the
polytetrafluoroethylene textile together.
3. The method of claim 1, wherein the artificial fiber yarn is
selected from a group consisting of nylon yarn, polyester yarn and
spandex yarn, the denier of the polytetrafluoroethylene yarn being
within a range of from 40 to 400 denier, the denier of the nylon
yarn being within a range of from 20 to 280 denier, the denier of
the polyester yarn being within a range of from 20 to 300 denier,
the denier of the spandex yarn being within a range of from 15 to
70 denier.
4. The method of claim 3, wherein a weight ratio of the nylon yarn
to the polytetrafluoroethylene yarn is within a range of
25-45:55-75 if the artificial fiber yarn is the nylon yarn, and a
weight ratio of the polyester yarn to the polytetrafluoroethylene
yarn to the spandex yarn is within a range of 50-65:34-40:1-10 if
the artificial fiber yarn is consisted of the polyester yarn and
the spandex yarn.
5. A polytetrafluoroethylene textile manufactured according to the
method as claimed in claim 1, comprising: an artificial fiber
structural layer comprising a plurality of artificial fiber yarns;
and a polytetrafluoroethylene structural layer comprising a
plurality of polytetrafluoroethylene yarns, and a part of the
polytetrafluoroethylene yarns of the polytetrafluoroethylene
structural layer and a part of the artificial fiber yarns of the
artificial fiber structural layer are knitted together, wherein the
polytetrafluoroethylene structural layer has at least one
knit-assisting part for assisting knitting the part of the
polytetrafluoroethylene yarns and the part of the artificial fiber
yarns together and confining the part of the artificial fiber yarns
correspondingly to thereby obtain the polytetrafluoroethylene
textile, wherein the knit-assisting part is an expanded structure
formed by at least two of the polytetrafluoroethylene yarns, and
the part of the artificial fiber yarns of the artificial fiber
structural layer is configured to pass through the knit-assisting
part to thereby knit with the at least two of the
polytetrafluoroethylene yarns.
6. The polytetrafluoroethylene textile of claim 5, further
comprising a water repellent structural layer disposed on the
artificial fiber structural layer, and the water repellent
structural layer and the polytetrafluoroethylene structural layer
are disposed on two opposite sides of the artificial fiber
structural layer respectively.
7. The polytetrafluoroethylene textile of claim 5, wherein the
artificial fiber structural layer is selected from a group
consisting of nylon yarn layer, polyester yarn layer and spandex
yarn layer, the denier of the polytetrafluoroethylene yarns being
within a range of from 40 to 400 denier, the denier of nylon yarns
of the nylon yarn layer being within a range of from 20 to 280
denier, the denier of polyester yarns of the polyester yarn layer
being within a range of from 20 to 300 denier, the denier of
spandex yarns of the spandex yarn layer being within a range of
from 15 to 70 denier, and a weight ratio of the nylon yarn layer to
the polytetrafluoroethylene structural layer is within a range of
25-45:55-75 if the artificial fiber structural layer is the nylon
yarn layer, and a weight ratio of the polyester yarn layer to the
polytetrafluoroethylene structural layer to the spandex yarn layer
is within a range of 50-65:34-40:1-10 if the artificial fiber
structural layer is consisted of the polyester yarn layer and the
spandex yarn layer.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims priority from Taiwan Patent
Application No. 105139002, filed on Nov. 25, 2016 and Taiwan Patent
Application No. 105218114, filed on Nov. 25, 2016, in the Taiwan
Intellectual Property Office, the content of which are hereby
incorporated by reference in their entirety for all purposes.
BACKGROUND OF THE INVENTION
1. Field of the Invention
[0002] The present invention relates to a textile and a
manufacturing method thereof, in particular with respect to a
polytetrafluoroethylene textile and a manufacturing method
thereof.
2. Description of the Related Art
[0003] In recent years, people gradually pay attention to the
importance of the outdoor leisure activities, exercise and fitness,
and for sports dress, light and comfortable and other functional
clothing have also been stressed. Therefore, this type of
functional clothing has gradually become the mainstream of
development. In general, the outdoor leisure clothing that makes
the user feel comfortable usually has the characteristic of surface
water repellency, that is, its material is hydrophobic and also has
the characteristic of draining moisture of human body, that is,
fabric with moisture absorbing and perspiration dissipation
functions, which is needed for the current market demand.
[0004] In order to achieve the effects of waterproofing and
moisture permeation of the fabric, it is usually used to coat the
water repellent on the fabric or adhere the waterproof and moisture
permeable film to the surface fabric by coating or affixing method.
However, the water repellent is often merely coated over the
surface of the fabric by coating the water repellent on the fabric.
The water repellent will be easily lost due to friction after
repeated use, external friction and washing, resulting in water
repellent function decline and shortcomings of poor durability. The
original permeability of the fabric is often damaged because too
much amount of resin coating block the pores between the fabric
fibers by using the affixing or lamination method to laminate the
waterproof and moisture permeable film on the surface of the
fabric, resulting in shortcomings of obstructing permeability of
the fabric.
SUMMARY OF THE INVENTION
[0005] In view of the aforementioned technical problems of the
prior art, one purpose of the present invention is to provide a
polytetrafluoroethylene textile and a manufacturing method thereof
so as to solve the problem of shortcomings of poor durability and
permeability of the waterproof and moisture fabric manufactured
according to the prior art.
[0006] In order to accomplish the preceding purpose, the present
invention provides a method of manufacturing a
polytetrafluoroethylene textile, comprising: providing a
polytetrafluoroethylene yarn and an artificial fiber yarn; and
performing a knitting process to knit the polytetrafluoroethylene
yarn and the artificial fiber yarn together to thereby obtain the
polytetrafluoroethylene textile.
[0007] In the method of manufacturing a polytetrafluoroethylene
textile of the present invention, a pretreatment process is further
performed before performing the knitting process to make the
polytetrafluoroethylene yarn have at least one knit-assisting part
for assisting knitting the polytetrafluoroethylene yarn and the
artificial fiber yarn together and confining the artificial fiber
yarn correspondingly to thereby obtain the polytetrafluoroethylene
textile, wherein the knit-assisting part is an expanded structure
formed by at least two of the polytetrafluoroethylene yarns, and a
part of the artificial fiber yarn is configured to pass through the
knit-assisting part to thereby knit with the at least two of the
polytetrafluoroethylene yarns.
[0008] The method of manufacturing a polytetrafluoroethylene
textile of the present invention further comprises performing a
laminating process to laminate a water repellent fabric with the
polytetrafluoroethylene textile together.
[0009] Wherein the artificial fiber yarn is selected from a group
consisting of nylon yarn, polyester yarn and spandex yarn, the
denier of the polytetrafluoroethylene yarn being within a range of
from 40 to 400 denier, the denier of the nylon yarn being within a
range of from 20 to 280 denier, the denier of the polyester yarn
being within a range of from 20 to 300 denier, the denier of the
spandex yarn being within a range of from 15 to 70 denier.
[0010] Wherein a weight ratio of the nylon yarn to the
polytetrafluoroethylene yarn is within a range of 25-45:55-75 if
the artificial fiber yarn is the nylon yarn, and a weight ratio of
the polyester yarn to the polytetrafluoroethylene yarn to the
spandex yarn is within a range of 50-65:34-40:1-10 if the
artificial fiber yarn is consisted of the polyester yarn and the
spandex yarn.
[0011] Further, the present invention also provides a
polytetrafluoroethylene textile manufactured according to the
method mentioned above. The polytetrafluoroethylene textile
comprises an artificial fiber structural layer comprising a
plurality of artificial fiber yarns; and a polytetrafluoroethylene
structural layer comprising a plurality of polytetrafluoroethylene
yarns, and a part of the polytetrafluoroethylene yarns of the
polytetrafluoroethylene structural layer and a part of the
artificial fiber yarns of the artificial fiber structural layer are
knitted together.
[0012] Wherein the polytetrafluoroethylene structural layer has at
least one knit-assisting part for assisting knitting the part of
the polytetrafluoroethylene yarns and the part of the artificial
fiber yarns together and confining the part of the artificial fiber
yarns correspondingly to thereby obtain the polytetrafluoroethylene
textile, wherein the knit-assisting part is an expanded structure
formed by at least two of the polytetrafluoroethylene yarns, and
the part of the artificial fiber yarns of the artificial fiber
structural layer is configured to pass through the knit-assisting
part to thereby knit with the at least two of the
polytetrafluoroethylene yarns.
[0013] The method of manufacturing a polytetrafluoroethylene
textile of the present invention further comprises a water
repellent structural layer disposed on the artificial fiber
structural layer, and the water repellent structural layer and the
polytetrafluoroethylene structural layer are disposed on two
opposite sides of the artificial fiber structural layer
respectively.
[0014] Wherein the artificial fiber structural layer is selected
from a group consisting of nylon yarn layer, polyester yarn layer
and spandex yarn layer, the denier of the polytetrafluoroethylene
yarns being within a range of from 40 to 400 denier, the denier of
nylon yarns of the nylon yarn layer being within a range of from 20
to 280 denier, the denier of polyester yarns of the polyester yarn
layer being within a range of from 20 to 300 denier, the denier of
spandex yarns of the spandex yarn layer being within a range of
from 15 to 70 denier, and a weight ratio of the nylon yarn layer to
the polytetrafluoroethylene structural layer is within a range of
25-45:55-75 if the artificial fiber structural layer is the nylon
yarn layer, and a weight ratio of the polyester yarn layer to the
polytetrafluoroethylene structural layer to the spandex yarn layer
is within a range of 50-65:34-40:1-10 if the artificial fiber
structural layer is consisted of the polyester yarn layer and the
spandex yarn layer.
[0015] In accordance with the preceding description, the
polytetrafluoroethylene textile and the manufacturing method
thereof of the present invention may have one or more following
advantages:
[0016] (1) In the polytetrafluoroethylene textile and the
manufacturing method thereof of the present invention, the
polytetrafluoroethylene textile with characteristics of high
durability and permeability can be manufactured by knitting the
polytetrafluoroethylene yarn(s) and the artificial fiber yarn(s)
together.
[0017] (2) In the method of manufacturing the
polytetrafluoroethylene textile of the present invention, the
pretreatment process is performed before performing the knitting
process to make the polytetrafluoroethylene yarn have the
knit-assisting part to thereby facilitate knitting the
polytetrafluoroethylene yarn and the artificial fiber yarn together
and confining the artificial fiber yarn correspondingly. Therefore,
the structure of the polytetrafluoroethylene textile manufactured
by the method of the present invention is strong.
[0018] (3) In the polytetrafluoroethylene textile and the
manufacturing method thereof of the present invention, the
abilities of waterproofing and moisture permeation of the
polytetrafluoroethylene textile can be improved by performing the
laminating process to laminate the water repellent fabric with the
polytetrafluoroethylene textile together.
[0019] (4) In the polytetrafluoroethylene textile and the
manufacturing method thereof of the present invention, the
manufactured polytetrafluoroethylene textile has excellent
characteristics of moisture-proof, water resistance and water
repellent by using specific materials and specifications of the
artificial fiber yarn.
[0020] For better understanding and knowledge of the technical
features and attainable technical effects of the present invention,
it is to be understood that the preferred embodiments and the
accompanying detailed description are given hereinafter.
BRIEF DESCRIPTION OF THE DRAWINGS
[0021] FIG. 1 is a schematic flow diagram of the first preferred
embodiment of the method of manufacturing the
polytetrafluoroethylene textile of the present invention.
[0022] FIG. 2 is a schematic flow diagram of the second preferred
embodiment of the method of manufacturing the
polytetrafluoroethylene textile of the present invention.
[0023] FIG. 3 is a schematic flow diagram of the third preferred
embodiment of the method of manufacturing the
polytetrafluoroethylene textile of the present invention.
[0024] FIG. 4 is a side view diagram of the first preferred
embodiment of the polytetrafluoroethylene textile of the present
invention.
[0025] FIG. 5 is a side view diagram of the second preferred
embodiment of the polytetrafluoroethylene textile of the present
invention.
[0026] FIG. 6a is a photographic diagram of the
polytetrafluoroethylene textile comprising 75 denier polyester yarn
layer, 200 denier polytetrafluoroethylene structural layer and 20
denier spandex yarn layer with the weight ratio of 61:37:2 after
50,000 wear resistant revolutions; and FIG. 6b is a photographic
diagram of the polytetrafluoroethylene textile comprising 70 denier
nylon yarn layer and 200 denier polytetrafluoroethylene structural
layer with the weight ratio of 38:62 after 40,000 wear resistant
revolutions.
[0027] FIG. 7a is a photographic diagram of the knit-assisting part
of the present invention; FIG. 7b is an enlarged diagram of FIG.
7a; and FIG. 8 is a photographic diagram of the knit-assisting part
of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0028] For purposes of understanding the technical features,
contents, advantages and technical effects achieved thereby,
various embodiments of the present invention will now be described
in more detail with reference to the accompanying drawings.
Drawings are used for illustrating and assisting in understanding
the detailed description, not represent the real scale and precise
configuration of the present invention. Therefore, the claims cope
of the subject matter are not interpreted or limited by the scale
and configuration of the accompanying drawings. Further, for
purposes of explanation, in the drawings, similar symbols typically
identify similar components, unless context dictates otherwise.
[0029] Referring to FIG. 1, FIG. 1 is a schematic flow diagram of
the first preferred embodiment of the method of manufacturing the
polytetrafluoroethylene textile of the present invention. As shown
in FIG. 1, the method of manufacturing a polytetrafluoroethylene
textile of the present invention comprises at least the following
steps S10 and S20. In step S10, providing a polytetrafluoroethylene
yarn and an artificial fiber yarn. In step S20, performing a
knitting process to knit the polytetrafluoroethylene yarn and the
artificial fiber yarn together to thereby obtain the
polytetrafluoroethylene textile. The manner for knitting the
polytetrafluoroethylene yarn and the artificial fiber yarn can be,
for example, plain weave or chain stitch, but not limited thereto.
Users can use the appropriate knitting or weaving manner to knit or
weave the polytetrafluoroethylene yarn and the artificial fiber
yarn together depending on actual needs.
[0030] The polytetrafluoroethylene (PTFE) yarn can be manufactured,
for example, by a split spinning method, an extrusion spinning
method, a carrier spinning method or a melt spinning method, but
not limited thereto. All the polytetrafluoroethylene yarns
manufactured by any method or manner for manufacturing the
polytetrafluoroethylene yarn are the polytetrafluoroethylene yarn
claimed by the present invention. The polytetrafluoroethylene yarn
in the present invention is substantially free of other ingredients
or impurities, that is, the composition of the
polytetrafluoroethylene yarn is substantially 100%
polytetrafluoroethylene. Or the polytetrafluoroethylene yarn can
include other ingredients or impurities. Users can select and use
the polytetrafluoroethylene yarn including or excluding other
ingredients or impurities depending on actual needs. The denier of
the polytetrafluoroethylene yarn is within a range of from 40 to
400 deniers, preferably 200 deniers, but not limited thereto. Users
can use the polytetrafluoroethylene yarn with appropriate denier
specification depending on actual needs.
[0031] The artificial fiber is also known as chemical fiber, which
is the fiber manufactured by chemical method and include, but not
limited to, polyester, nylon and spandex. In the present invention,
the artificial fiber yarn can be, for example, selected from a
group consisting of nylon yarn, polyester yarn and spandex yarn. In
one preferred embodiment, the artificial fiber yarn is such as
nylon yarn, polyester yarn or spandex yarn with single ingredient.
In another preferred embodiment, the artificial fiber yarn is such
as yarns with composite ingredients. For example, the artificial
fiber yarn is the yarn comprising nylon and polyester ingredients;
polyester and spandex ingredients; or nylon, polyester and spandex
ingredients. The denier of the nylon yarn can be, for example,
within a range of from 20 to 280 deniers, preferably 70 deniers,
but not limited thereto. The denier of the polyester yarn can be,
for example, within a range of from 20 to 300 deniers, preferably
75 deniers, but not limited thereto. The denier of the spandex yarn
can be, for example, within a range of from 15 to 70 deniers,
preferably 20 deniers, but not limited thereto. Moreover, in one
preferred embodiment, the artificial fiber yarn is the nylon yarn,
and a weight ratio of the nylon yarn to the polytetrafluoroethylene
yarn can be, for example, within a range of 25-45:55-75. In another
preferred embodiment, the artificial fiber yarn is consisted of the
polyester yarn and the spandex yarn, and a weight ratio of the
polyester yarn to the polytetrafluoroethylene yarn to the spandex
yarn can be, for example, within a range of 50-65:34-40:1-10. Users
can use the artificial fiber yarn with appropriate ingredient(s)
and specification depending on actual needs, and similarly, users
can use the artificial fiber yarn and the polytetrafluoroethylene
yarn with appropriate content and ratio depending on actual
needs.
[0032] Referring to FIG. 2, FIG. 2 is a schematic flow diagram of
the second preferred embodiment of the method of manufacturing the
polytetrafluoroethylene textile of the present invention. As shown
in FIG. 2, the method of manufacturing a polytetrafluoroethylene
textile of the present invention comprises at least the following
steps S10, S20 and S30. The difference between the second
embodiment and the first embodiment of the present invention is
merely that in the second embodiment, a pretreatment process S30 is
further performed before performing the knitting process S20 to
make the polytetrafluoroethylene yarn have at least one
knit-assisting part for assisting knitting the
polytetrafluoroethylene yarn and the artificial fiber yarn together
and confining the artificial fiber yarn correspondingly to thereby
obtain the polytetrafluoroethylene textile.
[0033] The pretreatment process S30 can be, for example but not
limited to, performed by gluing or twisting method so as to make
the polytetrafluoroethylene yarn have the knit-assisting part. The
structure of the polytetrafluoroethylene yarn can be changed by the
aforementioned gluing or twisting method to make the
polytetrafluoroethylene yarn have the knit-assisting part.
Moreover, all regions or partial regions of the
polytetrafluoroethylene yarn can have the knit-assisting part, and
the knit-assisting part can be regularly or irregularly distributed
on the polytetrafluoroethylene yarn. And, users can adjust the
position and/or size of the knit-assisting part depending on actual
needs.
[0034] In addition, the pretreatment process S30 can also be
performed to the artificial fiber yarn to make the artificial fiber
yarn have at least one knit-assisting part for assisting knitting
the polytetrafluoroethylene yarn and the artificial fiber yarn
together and confining the polytetrafluoroethylene yarn
correspondingly to thereby obtain the polytetrafluoroethylene
textile. In other words, the pretreatment process S30 can be
performed to the polytetrafluoroethylene yarn and/or the artificial
fiber yarn by users depending on actual needs to make the
polytetrafluoroethylene yarn and/or the artificial fiber yarn have
at least one knit-assisting part.
[0035] In the present invention, a laminating process can be
further performed to laminate a water repellent fabric with the
polytetrafluoroethylene textile together. Referring to FIG. 3, FIG.
3 is a schematic flow diagram of the third preferred embodiment of
the method of manufacturing the polytetrafluoroethylene textile of
the present invention. As shown in FIG. 3, the laminating process
S40 is performed after the knitting process S20 to laminate the
water repellent fabric with the polytetrafluoroethylene textile
together. The material of the water repellent fabric can be, for
example, polyethylene terephthalate (PET), but not limited thereto.
The water repellent fabric can comprise a water repellent structure
layer and a transparent membrane structure layer, wherein the
material of the water repellent structure layer can be polyethylene
terephthalate (PET), and the material of the transparent membrane
structure layer can be polyurethane (PU), but not limited thereto.
For example, the water repellent fabric and the
polytetrafluoroethylene textile can be laminated together by the
method of PU foam flame burning, PU wet glue spray paste or PUR hot
melt adhesive paste. The aforementioned laminating methods of the
water repellent fabric and the polytetrafluoroethylene textile are
examples, but not limited thereto. Users can use appropriate
laminating methods to laminate the water repellent fabric and the
polytetrafluoroethylene textile together depending on actual
needs.
[0036] The difference between the third embodiment and the first
embodiment of the present invention is merely that in the third
embodiment, a laminating process S40 is further performed to
laminate the water repellent fabric with the
polytetrafluoroethylene textile together after performing the
knitting process S20. Moreover, in the third embodiment of the
present invention, the pretreatment process S30 can also be
performed before performing the knitting process S20 to make the
polytetrafluoroethylene yarn have at least one knit-assisting part
for assisting knitting the polytetrafluoroethylene yarn and the
artificial fiber yarn together and confining the artificial fiber
yarn correspondingly to thereby obtain the polytetrafluoroethylene
textile (in order to simplify the figure, the step S30 is not shown
in FIG. 3). The method for performing the pretreatment process S30
is described in the aforementioned second embodiment and will not
be more detailed described here.
[0037] Referring to FIG. 4, FIG. 4 is a side view diagram of the
first preferred embodiment of the polytetrafluoroethylene textile
of the present invention. The polytetrafluoroethylene textile of
the present invention can be, for example, manufactured by the
aforementioned method of manufacturing a polytetrafluoroethylene
textile. As shown in FIG. 4, the polytetrafluoroethylene textile
can at least comprise an artificial fiber structural layer 10 and a
polytetrafluoroethylene structural layer 20. The artificial fiber
structural layer 10 can comprise a plurality of artificial fiber
yarns, and the polytetrafluoroethylene structural layer 20 can
comprise a plurality of polytetrafluoroethylene yarns. And, a part
of the polytetrafluoroethylene yarns of the polytetrafluoroethylene
structural layer 20 and a part of the artificial fiber yarns of the
artificial fiber structural layer 10 are knitted together. The part
of the polytetrafluoroethylene yarns of the polytetrafluoroethylene
structural layer 20 and the part of the artificial fiber yarns of
the artificial fiber structural layer 10 can be knitted together by
method of plain weave or chain stitch, but not limited thereto.
Users can use the appropriate knitting or weaving manner to knit or
weave the polytetrafluoroethylene yarns and the artificial fiber
yarns together depending on actual needs.
[0038] The artificial fiber structural layer 10 can be, for
example, selected from a group consisting of nylon yarn layer,
polyester yarn layer and spandex yarn layer. And, the nylon yarn
layer can comprise a plurality of nylon yarns, the polyester yarn
layer can comprise a plurality of polyester yarns, and spandex yarn
layer can comprise a plurality of spandex yarns. As mentioned
above, in one preferred embodiment, the artificial fiber structural
layer 10 can comprise, for example, nylon yarns, polyester yarns or
spandex yarns with single ingredient. In another preferred
embodiment, the artificial fiber structural layer 10 can comprise
yarns with composite ingredients. For example, the artificial fiber
structural layer 10 can comprise, for example, nylon yarns and
polyester yarns; polyester yarns and spandex yarns; or nylon yarns,
polyester yarns and spandex yarns.
[0039] The denier of the polytetrafluoroethylene yarns can be, for
example, within a range of from 40 to 400 deniers, preferably 200
deniers, but not limited thereto. Users can use the
polytetrafluoroethylene yarns with appropriate denier specification
depending on actual needs. The denier of nylon yarns of the nylon
yarn layer can be, for example, within a range of from 20 to 280
deniers, preferably 70 deniers, but not limited thereto. The denier
of polyester yarns of the polyester yarn layer can be, for example,
within a range of from 20 to 300 deniers, preferably 75 deniers,
but not limited thereto. The denier of spandex yarns of the spandex
yarn layer can be, for example, within a range of from 15 to 70
deniers, preferably 20 deniers, but not limited thereto. Moreover,
in one preferred embodiment, the artificial fiber structural layer
10 is the nylon yarn layer, and a weight ratio of the nylon yarn
layer to the polytetrafluoroethylene structural layer 20 can be,
for example, within a range of 25-45:55-75. In another preferred
embodiment, the artificial fiber structural layer 10 is consisted
of the polyester yarn layer and the spandex yarn layer, and a
weight ratio of the polyester yarn layer to the
polytetrafluoroethylene structural layer 20 to the spandex yarn
layer can be, for example, within a range of 50-65:34-40:1-10.
Users can use the artificial fiber yarns with appropriate
ingredient(s) and specification depending on actual needs, and
similarly, users can use the artificial fiber yarns and the
polytetrafluoroethylene yarns with appropriate content and ratio
depending on actual needs.
[0040] The polytetrafluoroethylene textile of the present invention
can further comprise a water repellent structural layer. Referring
to FIG. 5, FIG. 5 is a side view diagram of the second preferred
embodiment of the polytetrafluoroethylene textile of the present
invention. As shown in FIG. 5, the difference between the second
embodiment and the first embodiment of the present invention is
merely that the polytetrafluoroethylene textile in the second
embodiment further comprise the water repellent structural layer 30
disposed on the artificial fiber structural layer 10, and the water
repellent structural layer 30 and the polytetrafluoroethylene
structural layer 20 can be disposed on two opposite sides of the
artificial fiber structural layer 10 respectively. The water
repellent structural layer 30 can be, for example, polyethylene
terephthalate (PET) structural layer, but not limited thereto. In
addition, a polyurethane (PU) structural layer 40 can be further
disposed between the water repellent structural layer 30 and the
artificial fiber structural layer 10. As mentioned above, the water
repellent structural layer 30, the polyurethane structural layer 40
and the artificial fiber structural layer 10 can be laminated
together by the method of PU foam flame burning, PU wet glue spray
paste or PUR hot melt adhesive paste.
[0041] In one preferred embodiment, the artificial fiber structural
layer 10 of the polytetrafluoroethylene textile in the present
invention comprises 70 denier nylon yarn layer, and the weight
ratio of the nylon yarn layer to the 200 denier
polytetrafluoroethylene structural layer 20 can be, for example,
within a range of 25-45:55-75. Preferably, the weight ratio of the
nylon yarn layer to the 200 denier polytetrafluoroethylene
structural layer 20 can be 38:62 (weight per unit area is 213.+-.3%
g/sm, 0.+-.3% g/y or 6.28.+-.3% oz/sy). And, if the weight ratio of
the nylon yarn layer to the 200 denier polytetrafluoroethylene
structural layer 20 is 38:62, the number of the wear resistant
revolutions of the polytetrafluoroethylene textile is 40,000. In
addition, the water repellent structural layer 30 and the
polyurethane (PU) structural layer 40 are further disposed on the
artificial fiber structural layer 10 of the polytetrafluoroethylene
textile of the present invention. In this preferred embodiment, the
overall polytetrafluoroethylene textile is a kind of three layers
waterproof and moisture permeable swatch and has characteristics of
water vapor resistance (Ret) equal to or smaller than 15
Pa*m.sup.2/W, hydrostatic pressure equal to or larger than 15,000
mmH.sub.2O, and water repellent effect equal to or larger than 80
after washing 20 times (AATCC 22). Water vapor resistance (Ret) is
a fabric moisture-penetrable method, to measure water vapor
penetration fabric input and output difference pressure.
[0042] In another preferred embodiment, the artificial fiber
structural layer 10 of the polytetrafluoroethylene textile in the
present invention comprises 75 denier polyester yarn layer and 20
denier spandex yarn layer, and the weight ratio of the weight ratio
of the polyester yarn layer to the 200 denier
polytetrafluoroethylene structural layer 20 to the spandex yarn
layer can be, for example, within a range of 50-65:34-40:1-10.
Preferably, the weight ratio of the polyester yarn layer to the 200
denier polytetrafluoroethylene structural layer 20 to the spandex
yarn layer can be 61:37:2 (weight per unit area is 247.+-.5% g/sm,
0.+-.5% g/y or 7.29.+-.5% oz/sy). And, if the weight ratio of the
polyester yarn layer to the 200 denier polytetrafluoroethylene
structural layer 20 to the spandex yarn layer is 61:37:2, the
number of the wear resistant revolutions of the
polytetrafluoroethylene textile is 50,000. In addition, the water
repellent structural layer 30 and the polyurethane (PU) structural
layer 40 are further disposed on the artificial fiber structural
layer 10 of the polytetrafluoroethylene textile of the present
invention. In this preferred embodiment, the overall
polytetrafluoroethylene textile is a kind of three layers
waterproof and moisture permeable swatch and has characteristics of
water vapor resistance (Ret) equal to or smaller than 15
Pa*m.sup.2/W, hydrostatic pressure equal to or larger than 15,000
mmH.sub.2O, and water repellent effect equal to or larger than 80
after washing 20 times (AATCC 22).
[0043] The abrasion resistance test of the fabric is a test to
measure the characteristic of abrasion resistance of the fabric.
The abrasion resistance test of the fabric is performed by
repeatedly rubbing the fabric with other objects and determined the
damage content of the fabric such as broken yarn, holes, fade and
so on during the using period. The abrasion resistance of the
fabric can also be determined by the weight loss of the fabric
after a certain amount of wear. Under the same conditions, the
greater the weight loss, the worse the abrasion resistance of the
fabric. Abrasion resistance is one of the important indicators of
textile product quality, and will directly affect the durability
and the using results of products.
[0044] The characteristic of the abrasion resistance of the
aforementioned polytetrafluoroethylene textile was measured by the
following methods: performing the ASTM D4966 friction test standard
by a Martindale Abrasion Tester; rubbing the
polytetrafluoroethylene textile with a woven fiber cloth with wool
material according to a certain rotation track (Lissajous Figure:
Lee's graphics); and evaluating the number of the wear resistant
revolutions of the polytetrafluoroethylene textile, that is the
rotation number of the wear resistant revolutions of the fabric due
to friction when the broken yarn or hole of the test sample is
produced. The polytetrafluoroethylene textiles after the abrasion
resistance test are shown in FIG. 6a and FIG. 6b, wherein FIG. 6a
is a photographic diagram of the polytetrafluoroethylene textile
comprising 75 denier polyester yarn layer, 200 denier
polytetrafluoroethylene structural layer and 20 denier spandex yarn
layer with the weight ratio of 61:37:2 after 50,000 wear resistant
revolutions, and FIG. 6b is a photographic diagram of the
polytetrafluoroethylene textile comprising 70 denier nylon yarn
layer and 200 denier polytetrafluoroethylene structural layer with
the weight ratio of 38:62 after 40,000 wear resistant revolutions.
As can be seen in FIG. 6a and FIG. 6b, the polytetrafluoroethylene
textile of the present invention has a high degree of abrasion
resistance.
[0045] In the polytetrafluoroethylene textile of the present
invention, the polytetrafluoroethylene structural layer 20 has at
least one knit-assisting part 22. Referring to FIG. 7a, FIG. 7b and
FIG. 8, FIG. 7a is a photographic diagram of the knit-assisting
part of the present invention; FIG. 7b is an enlarged diagram of
FIG. 7a; and FIG. 8 is a photographic diagram of the knit-assisting
part of the present invention. As shown in FIG. 7a, FIG. 7b and
FIG. 8, the polytetrafluoroethylene structural layer 20 has the
knit-assisting part 22 for assisting knitting a part of the
polytetrafluoroethylene yarn and a part of the artificial fiber
yarn together and confining the part of the artificial fiber yarn
correspondingly to thereby obtain the polytetrafluoroethylene
textile of the present invention. For example, the knit-assisting
part 22 can be an expanded structure formed by at least two of the
polytetrafluoroethylene yarns, and the part of the artificial fiber
yarns of the artificial fiber structural layer 10 can be configured
to pass through the knit-assisting part 22 to thereby knit with the
at least two of the polytetrafluoroethylene yarns. The
knit-assisting part 22 can be manufactured by the aforementioned
pretreatment process S30, but not limited thereto. By performing
the pretreatment process S30 to make the polytetrafluoroethylene
structural layer 20 have the knit-assisting part 22, the artificial
fiber yarns of the artificial fiber structural layer 10 can be
knitted with the polytetrafluoroethylene yarns of the
polytetrafluoroethylene structural layer 20 by passing the through
the knit-assisting part 22 more easily, and the artificial fiber
structural layer 10 and the polytetrafluoroethylene structural
layer 20 can be strongly knitted together. As mentioned above, all
regions or partial regions of the polytetrafluoroethylene
structural layer 20 can have the knit-assisting part 22, and the
knit-assisting part 22 can be regularly or irregularly distributed
on the polytetrafluoroethylene structural layer 20. And, users can
adjust the position and/or size of the knit-assisting part 22
depending on actual needs.
[0046] In addition, as shown in FIG. 8, FIG. 8 is a top view of
polytetrafluoroethylene textile. The polytetrafluoroethylene yarns
of the polytetrafluoroethylene structural layer 20 and the
artificial fiber yarns of the artificial fiber structural layer 10
can be knitted and regularly patterned. By designing the knitting
location of the polytetrafluoroethylene yarns and the artificial
fiber yarns, the pattern style of the polytetrafluoroethylene
structural layer 20 can be designed depending on actual needs. And,
because of the low friction characteristic of the
polytetrafluoroethylene yarns, the characteristics of low cost,
high permeability and abrasion resistance can be achieved by
designing the knitting pattern of the polytetrafluoroethylene yarns
and then knitting with the artificial fiber structural layer 10
without knitting with the artificial fiber yarns
comprehensively.
[0047] In summary, in the polytetrafluoroethylene textile and the
manufacturing method thereof of the present invention, the
polytetrafluoroethylene textile with characteristics of high
durability and permeability can be manufactured by knitting the
polytetrafluoroethylene yarn(s) and the artificial fiber yarn(s)
together. And, the pretreatment process is performed before
performing the knitting process to make the polytetrafluoroethylene
yarn have the knit-assisting part to thereby facilitate knitting
the polytetrafluoroethylene yarn and the artificial fiber yarn
together and confining the artificial fiber yarn correspondingly.
Therefore, the structure of the polytetrafluoroethylene textile
manufactured by the method of the present invention is strong.
Moreover, the abilities of waterproofing and moisture permeation of
the polytetrafluoroethylene textile can be improved by performing
the laminating process to laminate the water repellent fabric with
the polytetrafluoroethylene textile together. And, the manufactured
polytetrafluoroethylene textile has excellent characteristics of
moisture-proof, water resistance and water repellent by using
specific materials and specifications of the artificial fiber
yarn.
[0048] While the invention has been described by way of example(s)
and in terms of the preferred embodiment(s), it is to be understood
that the invention is not limited thereto. On the contrary, it is
intended to cover various modifications and similar arrangements
and procedures, and the scope of the appended claims therefore
should be accorded the broadest interpretation so as to encompass
all such modifications and similar arrangements and procedures.
* * * * *