U.S. patent application number 11/089291 was filed with the patent office on 2005-09-22 for composite yarn and textile fabric.
This patent application is currently assigned to Nisshinbo Industries, Inc.. Invention is credited to Horikoshi, Shigeo, Ono, Syu, Shiozaki, Makoto, Sugiyama, Masayuki.
Application Number | 20050204719 11/089291 |
Document ID | / |
Family ID | 34535805 |
Filed Date | 2005-09-22 |
United States Patent
Application |
20050204719 |
Kind Code |
A1 |
Ono, Syu ; et al. |
September 22, 2005 |
Composite yarn and textile fabric
Abstract
The invention is a composite yarn fabricated by double-twisting
a S-twisted single yarn and a S-twisted single yarn in a Z-twisting
mode in a ratio of from 100% to 300% of the count of twist of the
S-twisted single yarns, or a textile fabric.
Inventors: |
Ono, Syu; (Okazaki-shi,
JP) ; Shiozaki, Makoto; (Okazaki-shi, JP) ;
Sugiyama, Masayuki; (Okazaki-shi, JP) ; Horikoshi,
Shigeo; (Okazaki-shi, JP) |
Correspondence
Address: |
PEARNE & GORDON LLP
1801 EAST 9TH STREET
SUITE 1200
CLEVELAND
OH
44114-3108
US
|
Assignee: |
Nisshinbo Industries, Inc.
Tokyo
JP
|
Family ID: |
34535805 |
Appl. No.: |
11/089291 |
Filed: |
March 24, 2005 |
Current U.S.
Class: |
57/293 |
Current CPC
Class: |
D02G 3/28 20130101 |
Class at
Publication: |
057/293 |
International
Class: |
D01H 013/26; D01H
007/92; D01H 007/46; D02G 003/36 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 30, 2003 |
JP |
2003-341097 |
Claims
1. A composite yarn fabricated by double-twisting a S-twisted
single yarn and a S-twisted single yarn, which is double-twisted in
a Z-twisting mode in a ratio of from 100% to 300% of the count of
twist of the S-twisted single yarns.
2. A composite yarn fabricated by double-twisting a Z-twisted
single yarn and a Z-twisted single yarn, which is double-twisted in
a S-twisting mode in a ratio of from 100% to 300% of the count of
twist of the Z-twisted single yarns.
3. A textile fabric which comprises, at least as the warp or the
weft thereof, a composite yarn fabricated by double-twisting a
S-twisted single yarn and a S-twisted single yarn in a Z-twisting
mode in a ratio of from 100% to 300% of the count of twist of the
S-twisted single yarns.
4. A textile fabric which comprises, at least as the warp or the
weft thereof, a composite yarn fabricated by double-twisting a
Z-twisted single yarn and a Z-twisted single yarn in a S-twisting
mode in a ratio of from 100% to 300% of the count of twist of the
Z-twisted single yarns.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a composite yarn of good
wrinkle proof, and to a textile fabric of good wrinkle proof which
comprises it.
BACKGROUND ART
[0002] Heretofore known is a general composite yarn fabricated by
giving a final twist to a primary-twisted single yarn in the
direction opposite to the direction of the primary twist thereof in
a ratio of about 60% of the count of the primary twist. The wrinkle
proof of a textile fabric comprising general composite yarn does
not differ from that of a textile fabric comprising general single
yarn. Therefore, for improving the wrinkle proof of textile
fabrics, resin processing is known, which, however, is problematic
in that the processed textile fabrics may have a rough feel.
[0003] Also known is a two-ply voile yarn fabricated by giving a
final twist to a primary-twisted single yarn in the same direction
as that of the primary twist thereof in a ratio of about 60% of the
count of the primary twist. The wrinkle proof of a textile fabric
comprising the two-ply voile yarn does not also differ from that of
a textile fabric that comprises general single yarn. The voile yarn
is not preferred in some applications since it may feel coarse and
stiff.
[0004] When two or more woolen single yarns are twisted, Patent
Document 1 mentioned below discloses a yarn fabricated by giving a
final twist to a primary-twisted single yarn in the direction
opposite to the direction of the primary twist thereof in a ratio
of from about 100% to 300% of the count of the primary twist.
However, the yarn may have a soft feel since the cross section of
the woolen yarn is circular, and it is limited to wool but there is
shown no intention regarding wrinkle proof.
[0005] [Patent Document 1]
[0006] JP-A 8-246281
DISCLOSURE OF THE INVENTION
[0007] <1> An object of the invention is to obtain a yarn of
good wrinkle proof.
[0008] <2> An object of the invention is to obtain a
comfortable material of good texture.
[0009] <3> An object of the invention is to obtain a textile
fabric of good wrinkle proof.
[0010] <1> The invention relates to a composite yarn
fabricated by double-twisting a S-twisted (left-hand twisted)
single yarn and a S-twisted single yarn, which is double-twisted in
a Z-twisting mode (right-hand twisting mode) in a ratio of from
100% to 300% of the count of twist of the S-twisted single
yarns.
[0011] <2> The invention relates to a composite yarn
fabricated by double-twisting a Z-twisted single yarn and a
Z-twisted single yarn, which is double-twisted in a S-twisting mode
in a ratio of from 100% to 300% of the count of twist of the
Z-twisted single yarns.
[0012] <3> The invention relates to a textile fabric which
comprises, at least as the warp or the weft thereof, a composite
yarn fabricated by double-twisting a S-twisted single yarn and a
S-twisted single yarn in a Z-twisting mode in a ratio of from 100%
to 300% of the count of twist of the S-twisted single yarns.
[0013] <4> The invention relates to a textile fabric which
comprises, at least as the warp or the weft thereof, a composite
yarn fabricated by double-twisting a Z-twisted single yarn and a
Z-twisted single yarn in a S-twisting mode in a ratio of from 100%
to 300% of the count of twist of the Z-twisted single yarns.
DETAILED DESCRIPTION OF THE INVENTION
[0014] The invention has the following advantages.
[0015] <1> The invention provides a yarn of good wrinkle
proof.
[0016] <2> The invention provides a comfortable material of
good texture.
[0017] <3> The invention provides a textile fabric of good
wrinkle proof.
[0018] The invention is described in detail as follows.
[0019] <1> Composite Yarn:
[0020] The composite yarn of the invention is one fabricated by
double-twisting a S-twisted single yarn and a S-twisted single yarn
in a Z-twisting mode in a ratio of from 100% to 300%, preferably
from 100% to 200% of the count of twist of the S-twisted single
yarns (this is hereinafter referred to as "SS composite yarn").
Another composite yarn of the invention is fabricated by
double-twisting a Z-twisted single yarn and a Z-twisted single yarn
in a S-twisting mode in a ratio of from 100% to 300%, preferably
from 100% to 200% of the count of twist of the Z-twisted single
yarns (this is hereinafter referred to as "ZZ composite yarn").
[0021] Regarding the double-twisting percentage, if it is smaller
than 100%, then the yarn will be equivalent to ordinary
double-twisted yarn; but if larger than 300%, then the strength of
the yarn may lower.
[0022] Accordingly, the composite yarn of the invention has good
wrinkle proof (hardly creased), and it has a good feel and looks
solid.
[0023] The single yarn as referred to herein is meant to indicate
one yarn fabricated by spinning and S-twisting or Z-twisting
fibers. The single yarn that has been twisted up in a S-twisting
mode is referred to as "S-twisted single yarn"; and the single yarn
that has been twisted up in a Z-twisting mode is referred to as
"Z-twisted single yarn". S-twisting as referred to herein means
that, when the twisted yarn is stretched vertically, its twist line
runs from the left upper side to the right lower side. Contrary to
this, Z-twisting means that, when the twisted yarn is stretched
vertically, its twist line runs from the right upper side to the
left lower side.
[0024] The material of the single yarn for use in the invention is
not specifically defined so far as it can be double-twisted as in
the invention. For example, it includes natural fibers such as
cotton, hemp, wool, and chemical fibers such as rayon, tencel,
polyester; and natural fibers and chemical fibers are preferred.
The thickness of the single yarn is not also specifically defined
so far as it enables double-twisting as in the invention.
[0025] The double-twisting method in the invention includes a
method of giving a final S-twist to a few Z-twisted single yarns,
and a method of giving a final Z-twist to a few S-twisted single
yarns. Preferably, the number of the single yarns is 2.
[0026] <2> Textile Fabric:
[0027] A woven or knitted textile fabric may be produced by the use
of the SS composite yarn or of the ZZ composite yarn. At least any
one of the warp or the weft of the textile fabric is the SS
composite yarn or the ZZ composite yarn. In this, the remaining
warp or weft is not specifically defined so far as it does not
detract from the quality of the SS composite yarn or the ZZ
composite yarn therein, and any ordinary natural fibers and
chemical fibers may be used for it. Two types of the SS composite
yarn and the ZZ composite yarn may be employed in such a manner
that the SS composite yarn is for the weft and the ZZ composite
yarn is for the warp.
EXAMPLES
[0028] The invention is described in more detail with reference to
the following Examples, which, however, are illustrated herein
merely to be of some help in easily understanding the invention,
and the invention should not be limited to these Examples.
[0029] <1> ZZ Composite Yarn
Example 1
[0030] A ZZ composite yarn is fabricated, for example, by giving a
final S-twist to two Z-twisted single yarns of cotton count of
100.
[0031] A general composite yarn is fabricated by giving a final
S-twist (in a ratio of about 60%) to two S-twisted ordinary yarns
of cotton count of 50.
[0032] <2> Textile Fabric:
[0033] A fabric 1 of the invention in which the warp and the weft
are the ZZ composite yarn is fabricated; and a general fabric 1 in
which the warp and the weft are the general composite yarn is
fabricated. These are processed for SS high-natural finish (finish
with liquid ammonia), and the properties of the resulting plain
weave fabrics are shown in Table 1.
[0034] The fabrics (SS high-natural finish) of the ZZ composite
yarn of Example 1 are described. The wrinkle proof of the fabric 1
of the invention is 273.degree. (in dry) and 256.degree. (in wet);
while that of the general fabric 1 is 246.degree. (in dry) and
223.degree. (in wet). This confirms the superiority of the fabric 1
of the invention in the wrinkle proof thereof. The W & W grade
of the fabric 1 of the invention is 2.8; while that of the general
fabric 1 is 2.2. This confirms the superiority of the fabric 1 of
the invention.
[0035] To that effect, the fabric 1 of the invention is better than
the general fabric 1 in point of the data of the wrinkle proof and
the W & W grade thereof. The fabric 1 of the invention looks
solid and has a good drape-like feel.
[0036] The wrinkle proof is determined according to JIS L 1096 B
(Monsanto process) and as follows: The fabric is folded in two by
applying a load thereto. Then, the load is removed, and the
recovered angle of the folded part is read in the machine direction
and in the cross direction. The data of the angle in the machine
direction and that in the cross direction are summed up, and this
indicates the wrinkle proof of the fabric.
1 TABLE 1 Tested Fabrics (Example 1) Fabric 1 of the invention
General Fabric 1 Warp: ZZ Warp: general composite yarn composite
yarn Weft: ZZ Weft: general Tested Items composite yarn composite
yarn Density (/inch) 131 .times. 93 154 .times. 82 warp .times.
weft Tear Strength cross 1620 1350 (g) direction Tensile machine
46.5 42.3 Strength (g) direction W & W (grade) 2.8 2.2 wrinkle
proof in dry 273 246 (.degree.) in wet 256 223 Slippage (mm) cross
0.8 1.6 5 kg direction
[0037] Tear Strength: Measured according to JIS L 1096, method A
for tensile strength and elongation (labeled strip method).
[0038] Tensile Strength: Measured according to JIS L 1096, method D
for tear strength (pendulum method).
[0039] W & W (grade): wash-and-wear grade.
[0040] Slippage: Measured according to JIS L 1096, seam slippage
method B for slippage resistance.
[0041] <3> ZZ Composite Yarn
Example 2
[0042] A ZZ composite yarn is fabricated, for example, by giving a
final S-twist to two Z-twisted single yarns of cotton count of 80;
and another ZZ composite yarn is by giving a final S-twist to two
Z-twisted single yarns of cotton count of 60.
[0043] A general composite yarn is fabricated by giving a final
twist to two yarns of cotton count of 80; and another general yarn
is by giving a final twist to two yarns of cotton count of 60.
[0044] <4> Textile Fabric:
[0045] A fabric 2 of the invention is fabricated, in which the warp
and the weft are the ZZ composite yarns of Example 2; and a general
fabric 2 is fabricated, in which the warp and the weft are the
general yarn fabricated by giving a final twist to two yarns of
cotton count of 80 and the general composite yarn fabricated by
giving a final twist to two yarns of cotton count of 60. These are
processed for super-wrinkle proof finish with liquid ammonia
(finish with liquid ammonia+resin (SSP (registered trade name)
finish)), and the properties of the resulting plain weave fabrics
are shown in Table 2.
[0046] The fabric of the ZZ composite yarns of Example 2 is
described. The wrinkle proof of the fabric 2 of the invention is
304.degree. (in dry); while that of the general fabric 2 is
287.degree. (in dry). This confirms the superiority of the fabric 2
of the invention. However, the wrinkle proof in wet of the two is
the same. The W & W grade of the fabric 2 of the invention is
3.4; while that of the general fabric 2 is 3.2. This confirms the
superiority of the fabric 2 of the invention. The formalin content
of the fabric 2 of the invention is 23 (ppm); while that of the
general fabric 1 is 29 (ppm). This means that the formalin content
of the fabric 2 of the invention is smaller. To that effect, the
fabric 2 of the invention is better than the general fabric 2 in
point of the data of the W & W grade and the wrinkle proof
thereof. When taken hold of, the fabric 2 of the invention is
hardly creased, and regarding its texture, it has a silky feel and
looks solid, different from a voile fabric.
2 TABLE 2 Tested Fabrics (Example 2) Fabric 2 of the invention
General Fabric 2 Warp: ZZ Warp: general composite yarn composite
yarn Weft: ZZ Weft: general Tested Items composite yarn composite
yarn Density (/inch) 128 .times. 66 124 .times. 60 warp .times.
weft Tear Strength cross 820 1470 (g) direction Tensile machine
27.7 31.3 Strength (g) direction W & W (grade) 3.4 3.2 wrinkle
proof in dry 304 287 (.degree.) in wet 277 277 Slippage (mm) cross
0.6 2.6 5 kg direction Formalin (ppm) 23 29
[0047] While the invention has been described in detail and with
reference to specific embodiments thereof, it will be apparent to
one skilled in the art that various changes and modifications can
be made therein without departing from the spirit and scope
thereof.
[0048] This application is based on a Japanese patent application
filed Sep. 30, 2003 (Japanese Patent Application No. 2003-341097),
the entire contents thereof being hereby incorporated by
reference.
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