JP2006291427A - Composite twisted yarn and textile using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a composite twisted yarn having little fluff and excellent in air permeability and sunbeam shading properties and suitable mainly for summer wears, and to provide textiles using the yarn. <P>SOLUTION: The composite twisted yarn is obtained by covering the surface of a spun yarn with a multifilament yarn, in the same direction of the twisting direction of the spun yarn, and additionally twisting in the same direction of the twisting direction of the spun yarn and the twisting direction of the multifilament yarn, wherein the spun yarn has metric count of 48-72 and the multifilament yarn has 22-83 dtex total fineness, the twist multiplier K of the spun yarn is 50-120 [wherein, twist count (T/M)=K×(metric count)<SP>1/2</SP>], the twist count of the multifilament yarn is 300-800 T/M, the additional twist count is 200-1,000 T/M, and the total twist count of the twist count of the multifilament yarn and the additional twist count is 900-1,800 T/M. The textile uses the composite twisted yarn. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a composite twisted yarn with little fuzz and high air permeability and high sun light shielding properties, which is suitable mainly for summer clothing and a woven or knitted fabric using the same.

  Japan's summer begins in the rainy season and continues for several months with high humidity and high temperatures. It is a tough season for the human environment. Even at such high temperatures and high humidity, ordinary members of society need to wear a jacket such as a suit, and the wearer has been asked for cool clothes. Similarly, there is a demand for knitting that is cool and comfortable to wear.

  Conventionally, as such a summer garment, using fine count wool, blending synthetic fiber with wool, using strong twisted yarn, producing a coarse woven fabric like cocoon tissue, Sewing the suit was done.

In the following Patent Documents 1 and 2, composite twisted yarns of long fibers and short fibers are proposed, but these are all mixed with elastic yarns, and do not develop summer clothing. Moreover, although the composite twisted yarn of a long fiber and a short fiber is proposed by the following patent documents 3-4, all of these mix a biodegradable fiber and do not develop the clothing for summer.
JP 2003-328239 A JP-A-5-214634 JP 2000-303283 A JP 2001-64839 A

  In order to solve the above-mentioned conventional problems, the present invention provides a composite twisted yarn with little fluff, high air permeability and coolness, preferably high sun ray shielding properties and mainly suitable for summer clothing, and a woven or knitted fabric using the same. To do.

In the composite twisted yarn of the present invention, the multifilament yarn is covered and twisted on the surface of the spun yarn in the same direction as the twisted direction of the spun yarn, and further in the same direction as the twisted direction of the spun yarn and the twisted direction of the multifilament yarn. A twisted composite twisted yarn,
The spun yarn ranges from 48th single yarn to 72nd single yarn in a metric type,
The multifilament yarn has a total fineness ranging from 22 dtex to 83 dtex,
The twist coefficient K of the spun yarn is 50 to 120 [however, the number of twists (T / M) = K × meter count ^1/2 ],
The number of twists of the multifilament yarn is in the range of 300 T / M to 800 T / M,
The number of twists is 200 T / M to 1000 T / M,
The total number of twists of the multifilament yarn and the number of additional twists is 900 T / M to 1800 T / M.

  The woven or knitted fabric of the present invention is constituted using the above-described composite twisted yarn.

  The composite twisted yarn of the present invention is thin and strongly twisted, and has less fuzz. The woven fabric using the composite twisted yarn has high breathability and is cool, and is a garment suitable mainly for summer clothing.

  In the composite twisted yarn of the present invention, the multifilament yarn is covered and twisted on the surface of the spun yarn in the same direction as the twisted direction of the spun yarn, and further in the same direction as the twisted direction of the spun yarn and the twisted direction of the multifilament yarn. Obtained by twisting. Covering is performed using, for example, the apparatus shown in FIG. In FIG. 1, a spun yarn is used as the core yarn 1 and appropriate elongation is imparted between the delivery rolls 2 and 3 and the draft rolls 4 and 5, and the bobbin around which the covering yarn 8 (multifilament yarn) is wound. 7 is passed through the hollow spindle 6. At this time, the multifilament yarn is rotated, and the fed multifilament yarn is wound around the core yarn 1 through the guide 9 to become a composite yarn, which is taken up by the delivery rollers 10 and 11 and covered from the take-up roller 12 by the covering yarn winding. The body 13 is wound up. Further, twisting is performed by a twisting machine such as a double twister.

In the above, the spun yarn of the core yarn 1 is a metric type yarn and ranges from 48th single yarn to 72nd single yarn. The multifilament yarn of the covering yarn 8 has a total fineness in the range of 22 dtex to 83 dtex, preferably 33 dtex to 56 dtex. The twist coefficient K of the spun yarn is 50 to 120 [however, the number of twists (T / M) = K × meter count ^1/2 ]. The number of twists of the multifilament yarn is in the range of 300 T / M to 800 T / M. The number of twists is 200 T / M to 1000 T / M. The total number of twists of the multifilament yarn and the additional twist number is 900 T / M to 1800 T / M. If the total twist number of the cover ring twist number and the additional twist number is less than 900 T / M, the desired air permeability cannot be obtained, and if it exceeds 1800 T / M, the texture becomes coarse.

  The spun yarn is preferably at least one spun yarn selected from wool, cashmere, mohair, camel, rayon, hemp, cotton and blended yarns thereof, or a blended yarn of these and synthetic fibers. The multifilament yarn is preferably polyester, nylon or acetate. Of these, the core yarn is preferably a spun yarn made of wool, and the covering yarn is preferably a combination using a polyester multifilament yarn. Wool has a temperature and humidity control action and is suitable as a summer wool even in summer clothes, and the polyester multifilament yarn disposed on the surface has a quick drying property and is easy to dry even when wet with sweat. Therefore, the overall clothes can be comfortable.

  The proportion of the wool in the composite twisted yarn is preferably in the range of 10 to 50% by weight.

The composite twisted yarn of the present invention is useful for T-shirts, sports shirts, etc., in addition to woven fabrics, such as knits and tricots. In particular, the composite twisted yarn is preferably a plain-textured fabric used for warp and weft. The number of yarns in the plain woven fabric is a finished product in the range of warp yarns: 68 to 85 yarns / inch, preferably 75 to 78 yarns / inch, weft yarns: 58 to 72 yarns / inch, preferably 64 to 66 yarns / inch. is there. Moreover, (the weight of the finished product) basis weight of the plain weave fabric is in the range of 120g / m ² ~150g / m ² is preferred. These fabrics may be pre-dyed (top dyed, yarn dyed), post-dyed (anti-dyed), and the like. May be knitted basis weight (weight of the finished product) in the range of 120g / m ² ~150g / m ² is preferred.

  When the filament yarn contains 1 to 5% by weight of titanium oxide, it is preferable because the light ray shielding property is further increased. Normally, 0.5% by weight of titanium oxide is added to polyester and the like as a “semi-dull” type. In the present invention, the titanium oxide content is preferably set to “dull” in order to obtain sunlight shielding properties (infrared shielding). From 1% by weight of the “type” to 2% by weight or more of the “full-dal” type. If the titanium oxide content is less than 1% by weight, sufficient sunlight shielding properties cannot be obtained, and if it exceeds 5% by weight, guide wear may occur in the spinning process, and the strength of the fiber may be reduced or the polymerization process may be reduced. There is a problem that it becomes coarse aggregated particles, and adding a large amount is accompanied by difficulty.

  Hereinafter, the present invention will be specifically described with reference to examples.

Example 1
As the spun yarn, 100% merino wool, No. 60 single yarn, twist number 650 T / M (twisting coefficient K = 84), multifilament yarn, polyethylene terephthalate multifilament containing 1% by weight of titanium oxide, total fineness: 33 dtex After covering the spun yarn with the covering device shown in FIG. 1 and covering the polyester cover yarn in the same direction as the twisted yarn of the spun yarn (twisting number 400 T / M) using 12 filaments Then, a double twister was used for additional twisting (700 T / M) in the same direction as the twisting of the cover ring. The number of fluffs of the obtained composite twisted yarn having a wool mixing ratio of 16.7% by weight was measured by F-INDEX TESTER manufactured by Shikibo. The results are summarized later.

(Comparative Example 1)
Spun yarn [100% merino wool, 60th single yarn, twist number Z650T / M (twisting coefficient K = 84)] and multifilament yarn [polyethylene terephthalate multifilament containing 1% by weight of titanium oxide, total fineness: 33 dtex, number of filaments : 12 pieces] was twisted around the spun yarn at 1100 T / M at a time with a double twister in the same direction (Z direction) as that of the spun yarn.

  A comparison of the yarns of Example 1 and Comparative Example 1 is shown in Table 1.

  As is apparent from Table 1, the yarn of Example 1 was a yarn having fewer fluffs at each length and less fluff than the yarn of Comparative Example 1.

The composite twisted yarn of Example 1 and the composite twisted yarn of Comparative Example 1 were used to form a weft knitted fabric (flat knitted fabric) with a basis weight of 145 g / m ^2, and this knitted fabric was sewn to a T-shirt. This T-shirt was subjected to a questionnaire after walking for 1 hour on a jogging machine in a gym at a temperature of 30 ° C. and a relative humidity of 70% RH. There were five testers, and after hearing the feeling of comfort immediately after wearing, when sweating and after exercise, feeling of comfort such as a feeling of coolness and breathability, it was found that everyone has an advantage over other materials. Obtained.

(Example 2)
As spun yarn, 100% merino wool, No. 60 single yarn, twist number 650 T / M (twisting coefficient K = 84), covering yarn, polyethylene terephthalate multifilament yarn (containing 3.5% titanium oxide, total fineness) : 56 dt, 48 filaments were used, and after the covering twisting (twisting number 400 T / M) in the same manner as in Example 1, additional twisting was performed with the number of additional twisting (700 T / M).

A plain woven fabric having a finished warp thread count of 72.5 / inch, a weft thread count of 62 / inch and a weight of 143 g / m ² was obtained using the obtained composite twisted yarn having a wool mixing ratio of 26.4% by weight.

(Comparative Example 2)
Spun yarn [100% merino wool, No. 60 single yarn, twist number Z650T / M (twisting coefficient K = 84)] and covering yarn [polyethylene terephthalate multifilament containing 1% by weight of titanium oxide, total fineness: 33 dtex, number of filaments : 12 pieces] was twisted at a time of Z1100 T / M in the same manner as in Comparative Example 1. Using this twisted yarn, a finished plain fabric having a finished warp yarn count of 77.5 / inch, a weft yarn count of 66 / inch and a weight of 138 g / m ² was obtained.

Both Example 2 and Comparative Example 2 were dyed with the same hue and density by yarn dyeing.
Table 2 shows a comparison of the fabrics of Example 2 and Comparative Example 2 as measured by a Frazier type aeration measuring device based on JIS 1096 8.27.1.

  As is clear from Table 2, the product of the example of the present invention had a high air permeability of about 23% as compared with Comparative Example 2.

  Moreover, the heat shielding property was measured using the measuring apparatus shown in FIG. The measuring apparatus shown in FIG. 2 has an upper surface of a box in which five surfaces other than the upper surface are made of a heat insulating material (made of polystyrene foam, outside dimensions, length: 100 mm, width: 100 mm, height 40 mm, heat insulating material thickness: 20 mm). A woven fabric (sample) was attached to the (vacant surface), irradiated with a photographic 500 W lamp from above 40 cm away, and the radiant heat passing through the woven fabric was measured by a temperature sensor installed on the inner bottom surface of the box. That is, the temperature was measured by a temperature sensor placed on the bottom of the box, and the heat shielding property was measured.

  The result is shown in FIG. As is clear from FIG. 3, the example product of the present invention had a lower temperature rise curve and higher heat shielding properties than Comparative Example 2.

  From the above, it was confirmed that the fabric of Example 2 of the present invention had higher air permeability and superior heat shielding properties than the fabric of Comparative Example 2.

Next, the composite twisted yarn of Example 2 and the composite twisted yarn of Comparative Example 2 were used to form a weft kanoka, with a basis weight of 145 g / m ^2, and this knitted fabric was sewn on a T-shirt. Assuming that this T-shirt is exercised during the summer, the subject was irradiated with high-temperature lighting, and was walked at a speed of 6 km / h for 30 minutes with a jogging machine in a gym at a temperature of 30 ° C. and a relative humidity of 70% RH. I took a later questionnaire. There are five testers, and after hearing the feeling of comfort immediately after wearing, at the time of sweating and after exercise, the feeling of comfort such as a refreshing feeling, breathability, light shielding, etc., it is said that everyone has an advantage over other materials. Results were obtained.

(Example 3, Comparative Example 3)
A composite twisted yarn was produced in the same manner as in Example 2 and Comparative Example 2, except that the titanium oxide content of the polyethylene terephthalate multifilament yarn in Example 2 and Comparative Example 2 was changed to 0.5% by weight. Made a woven fabric. The same air permeability as in Table 2 was obtained. The obtained composite twisted yarn was used to knit a Kanoko structure with a basis weight of 145 g / m ^2, and this knitted product was sewn into a T-shirt. Assuming that this T-shirt is exercised during the summer season, a questionnaire was taken after walking for 30 minutes at a speed of 6 km / h on a jogging machine in a sports gym under the temperature of 30 ° C. and a relative humidity of 70% RH. There were five testers, and after hearing the feeling of comfort immediately after wearing, when sweating and after exercise, feeling of comfort such as a feeling of coolness and breathability, it was found that everyone has an advantage over other materials. Obtained. It was evaluated that the air permeability was particularly good.

The figure which shows schematic structure of the covering apparatus used by one Example of this invention. The schematic sectional drawing of the apparatus which measures the heat-shielding property used in Example 2 of this invention. The heat-shielding property measurement result figure of the textile fabric obtained in Example 2 and Comparative Example 2 of this invention.

Explanation of symbols

1 Core yarn (spun yarn)
2,3 Feed roll 4,5 Draft roll 6 Hollow spindle 7 Bobbin 8 Covering yarn (multifilament yarn)
9 Guide 10, 11 Delivery roller 12 Take-up roller 13 Covering bobbin

Claims (9)

A composite twisted yarn in which a multifilament yarn is covered and twisted on the surface of the spun yarn in the same direction as the twisted direction of the spun yarn, and additionally twisted in the same direction as the twisted direction of the spun yarn and the twisted direction of the multifilament yarn. And
The spun yarn ranges from 48th single yarn to 72nd single yarn in a metric type,
The multifilament yarn has a total fineness ranging from 22 dtex to 83 dtex,
The twist coefficient K of the spun yarn is 50 to 120 [however, the number of twists (T / M) = K × meter count ^1/2 ],
The number of twists of the multifilament yarn is in the range of 300 T / M to 800 T / M,
The number of twists is 200 T / M to 1000 T / M,
The composite twisted yarn, wherein the total number of twists of the multifilament yarn and the additional twist is 900 T / M to 1800 T / M.   2. The composite according to claim 1, wherein the spun yarn is at least one spun yarn selected from wool, cashmere, mohair, camel, rayon, hemp, cotton and a blended yarn thereof, or a blended yarn of these and a synthetic fiber. Twisted yarn.   The composite twisted yarn according to claim 1, wherein the multifilament yarn is polyester, nylon or acetate.   The composite twisted yarn according to any one of claims 1 to 3, wherein the spun yarn is wool and the multifilament yarn is polyester.   The composite twisted yarn according to claim 4, wherein the proportion of the wool in the composite twisted yarn is in the range of 10 to 50% by weight.   The composite twisted yarn according to any one of claims 1 to 5, wherein the multifilament yarn contains 1 to 5% by weight of titanium oxide.   A woven or knitted fabric using the composite twisted yarn according to any one of claims 1 to 6.   The woven or knitted fabric is a woven fabric having a plain structure, and the number of threads in the plain woven fabric is a finished product in the range of warp yarns: 68-85 yarns / inch, weft yarns: 58-72 yarns / inch. fabric. The (weight of the finished product) weight of the plain weave fabric is woven according to claim 7 or 8 in the range of ^{120g / m 2 ~150g / m 2} .

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