JP2005213684A - Composite yarn and cloth having high water-absorbing and quick-drying property - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a woven or knitted fabric having good touch feeling and high water-absorbing and quick-drying properties; and to provide a composite yarn used for the woven or knitted fabric. <P>SOLUTION: The composite yarn is spun by subjecting three rovings or the like of polyester filaments, a polyester spun roving and a cotton roving to fine spinning and plying. The composite yarn is composed of the polyester filaments as a core, and a part of the polyester spun yarn and a part of the cotton as a sheath. The cloth composed of the composite yarn has a high water-absorption and enables perspiration to be easily spread by the capillary phenomenon of the polyester filament part. The drying is made quick by the spreading of the perspiration to a large area. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a fabric with high water absorption and quick drying suitable for sportswear for various sports, casual wear, shirting, and the like, and a composite yarn suitable for the material of the fabric.

  A lot of sweating often occurs during various sports competitions, and sportswear made from 100% cotton has good water absorption, but the clothes get wet and stick to the body, making it difficult to move and uncomfortable. Feel. The same can be said when there is a lot of sweating even in casual wear. On the other hand, sportswear and casual wear with excellent water absorption and quick drying properties have been proposed.

  For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 2002-266207), the core has a core having an official moisture content of 3.5% or more such as rayon or cupra, and this has an official moisture content of 1 such as polyester or polyethylene. A woven or knitted fabric with a core-spun composite yarn with a fiber of less than% as a sheath has been proposed.

  However, since the thing of the said patent document 1 does not use natural fibers, such as cotton, there existed a problem that the touch became bad.

On the other hand, woven and knitted fabrics using a blended yarn of polyester span and cotton are widely used in general. Since cotton is contained, the touch is improved, but since the water absorption of polyester is low, there is a problem that the water absorption is low as a whole.
JP 2002-266207 A

  The present invention has been conceived from the above facts, and an object thereof is to provide a woven or knitted fabric having a good touch and a high water absorption and quick drying property, and a composite yarn used in the woven or knitted fabric.

  In order to achieve the above object, the composite yarn according to claim 1 of the present application is made by combining a synthetic fiber roving, a natural fiber roving, and a synthetic fiber filament supplied to the center of the two rovings. It is characterized by spinning and twisting.

  The composite yarn according to claim 2 of the present application is characterized in that the synthetic fiber filament is a polyester filament, the synthetic fiber roving is a polyester spun roving, and the natural fiber roving is a cotton roving. Yes.

  The composite yarn according to claim 3 of the present application is characterized in that the polyester filament is a bundle of a plurality of filaments of 0.69d or less.

  The cloth with high water absorption and quick drying property according to claim 4 of the present application is characterized in that the composite yarn described in any one of the above is formed into a woven or knitted fabric.

  According to the composite yarn of the present invention or the woven or knitted fabric using this composite yarn, the capillary phenomenon due to the filament portion of the synthetic fiber contributes greatly, the water absorption is good, and sweat spreads over a wide range to promote drying. . Moreover, since natural fiber is contained, hygroscopicity and touch become good.

  Polyester, acrylic, polyamide, nylon, rayon, etc. can be used as the synthetic fiber rovings and filaments.

  The synthetic fiber is a polyester filament, and this is a bundle of a plurality of very thin filaments of 0.69d or less, so that the capillary phenomenon is further increased and the water absorption can be further improved. Play.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a main part of a spinning machine for producing a composite yarn of the present invention. The composite yarn of the present invention is obtained by spinning a synthetic fiber filament a, a synthetic fiber spun roving b, and a natural fiber roving c as a single yarn through fine spinning and twisting. Hereinafter, when the synthetic fiber filament a, the synthetic fiber spun roving b, and the natural fiber roving c are collectively referred to as roving yarns a, b, c, When referring to the yarn b and the natural fiber roe c, they are referred to as roe b and c, and when referring only to the synthetic fiber filament a, it is referred to as filament a.

  As shown in FIG. 1, the roving yarns b and c are passed through a guide bar 1 and a regulation guide 2 and parallel to a draft region including a back roller 3, an apron 4 and a front roller 5 of a spinning machine such as a ring spinning machine. The draft is supplied at a predetermined draft magnification in the draft area. Next, the filament a is introduced from the outside of the draft region to the biting side of the front roller 5 through the guide rollers 6 and 7. The front roller 5 has two rovings b and c from the apron 4 and a filament a from the guide roller 7 and three rovings such as a, b and c are parallel to each other with an interval of several mm. Enter. Of the plurality of roving yarns a, b, and c fed out from the front roller 5, the filament a is not subjected to the draft, so that the original thickness is maintained, and the roving yarns b and c are subjected to the draft. It is a thin fleece. These are joined together, sent to the ring 9 via the snail guide 8, a predetermined twist number is added by a traveler 9 a rotating on the ring 9, and the composite yarn F which is a fine spinning twisted yarn is wound around the bobbin 10.

The number of twists added to the composite yarn F is indicated by the number of twists per 25.4 mm. The twist strength is such that the twist coefficient is in the range of 3.0 to 5.0. The relational expression with the twist coefficient, the number of twists, and the count (English cotton count) is as follows.
Number of twists = Twist coefficient x Square root of English cotton count

  2 is an enlarged view of the composite yarn F, and FIG. 3 is an enlarged cross-sectional view. The composite yarn F has a synthetic fiber filament a at the center, and a synthetic fiber span b and a natural fiber c are spirally wrapped around the outside. In other words, the core spun yarn has the filament a as the core and the synthetic fiber span b and the natural fiber c as a sheath. The synthetic fiber span b and the natural fiber c have substantially the same fiber thickness, but the synthetic fiber filament a is thinner than the two fibers.

  Polyester, acrylic, polyamide, nylon, rayon, etc. can be used for the synthetic fiber of the present invention. Polyester fibers are preferable. The natural fiber is preferably cotton or hemp.

The filament a desirably has a thickness of 0.69 d or less. However, the thinnest filament that is generally distributed is 0.25d, and the effect cannot be confirmed for a thinner filament. However, the present invention utilizes the capillary phenomenon, and it is considered desirable that the thinner the filament, the greater the number of gaps between the fibers and the narrower the gaps. From this reason, it is presumed that there is no lower limit for the thinner filament. On the other hand, when the thickness exceeds 0.69d, the difference from the thickness 1.5 to 2.0d used in ordinary blended yarn is reduced, the number of fibers is reduced, and the capillary phenomenon is insufficient. is there.
〔Example〕

  Next, a fabric was woven using the composite yarn F of the present invention, and the water absorption and drying properties were compared as follows. In this example, polyester fiber was used as the synthetic fiber, and cotton was used as the natural fiber.

First, the composite yarn F was spun under the following conditions.
As the filament a, a polyester filament of 50 d (denier) when 144 filaments were combined was prepared. The fineness of one filament is 0.35d. Since the fineness of polyester used for ordinary polyester / cotton blended yarn is about 1.5 to 2.0 d, very thin filaments are used.

  As the synthetic fiber span roving b, polyester spun roast is used. A short fiber polyester (1.5d, cut length 38 mm) used for ordinary polyester / cotton blended yarn was used as a coarse yarn, and a thickness of 0.20 g / m was prepared. The cotton roving c is a roving of a cotton fiber that is a natural fiber and has a thickness of 0.31 g / m.

  These roving yarns a, b, and c were supplied to the spinning machine shown in FIG. The roving yarns b and c become a thin fleece via the draft part, and the filament a is spun from the front roller 5 with the thickness as it is without being drafted. A twist number of 24.1 times / 25.4 mm (twisting coefficient 3.6) was added to these three fleeces, and a composite yarn F of 45 s was obtained with an English cotton count. The blend ratio was set to 65% polyester and 35% cotton.

Then, using this composite yarn F, a plain woven fabric with a warp density of 141.5 warps and 72 wefts is created, and refining, bleaching, mercerizing, fluorescent bleaching and finishing are the usual processing treatments. A fabric A was obtained.
[Comparative example]

  A polyester / cotton blend yarn having an English cotton count of 45 s is made by an ordinary spinning method. The polyester used was 1.5d as in the example and the cut length was 38 mm, and the polyester / cotton blend ratio was 65% polyester same as the fabric A and 35% cotton. The mixing method is sliver blending, not fine spinning and twisting. Accordingly, the roving supplied to the spinning machine is only one roving obtained by mixing polyester and cotton at 65/35.

  A predetermined draft was added to the roving yarn as a draft part, and 24.1 times / 25.4 mm of twist was added to spin the blended yarn. Using this blended yarn, a plain woven fabric having a warp density of 141.5 warps and 72 wefts was prepared and subjected to normal processing to obtain a fabric B.

Table 1 shows the results of the water-absorbing quick-drying performance test on the fabrics A and B thus obtained.

  In Table 1, “sucking height” indicates the height at which one end of a sample piece (fabric) is immersed in water and the water rises. Larger numbers indicate better water absorption. The fabric A of the example is 2.1 cm, and the fabric B of the comparative example is 0.2 cm. This is thought to be due to the capillary phenomenon of this portion because the fabric A has the polyester filament a. In particular, in the composite yarn of the present invention, the difference is large because the fineness of the polyester filament a is thin.

  “Drip” indicates the time required from dropping one drop of water to the sample piece until the water is sucked into the cloth. The smaller the number, the better the water absorption. The fabric A of the example is 3.1 seconds, while the fabric B of the comparative example is 1.3 seconds. Here, the comparative example has better water absorption.

  “Diffusion area” indicates the area where three drops of colored water are drawn into the sample piece and spread. The wider the area, the better the water absorption and the faster the drying. The fabric A was overwhelmingly superior in the suction height compared to the fabric B and was slightly inferior in the dropping time, but was wider than the fabric B in the total diffusion area.

  “Drying time” is the time taken to drop a drop of water onto a sample piece and measure the weight in an atmosphere at a temperature of 20 ° C. and a relative humidity of 65% and return to the weight before dropping. Smaller numbers indicate faster drying. The fabric A of the present invention dried 9 minutes earlier than the fabric B of the comparative example.

  “Moisture transpiration rate” refers to the amount of water dripped in the first 10 minutes, measuring the weight by dropping a drop of water onto a sample piece in an atmosphere of temperature 20 ° C. and relative humidity 65%. %. Larger numbers indicate faster drying. Here again, the fabric A of the present invention shows faster drying than the fabric B of the comparative example.

  In the test of Table 1, the water absorption was examined by the sucking height, the dropping time and the diffusion area, and the drying state was examined by the diffusion area, the drying time and the moisture transpiration rate. It was confirmed that the fabric had good water absorption and dried quickly.

  In addition, the above test was performed on a plain weave fabric, but the same result was obtained as long as the composite yarn F of the present invention was used even when other woven structures such as twill weave and various knitted fabrics were used. It is considered a thing.

  In the above examples, polyester was used as the synthetic fiber. Since polyester has low water absorption, other synthetic fibers can be used in place of polyester if the water absorption is equal to or higher than that of polyester. Examples of other synthetic fibers include acrylic fibers and polyamide fibers. On the other hand, as the natural fiber, cotton is used, but it can be replaced with hemp having good water absorption like cotton.

It is a principal part perspective view of the spinning machine which manufactures the composite yarn of this invention. It is an enlarged view of the composite yarn of this invention. It is an expanded sectional view of a composite yarn.

Explanation of symbols

a Polyester filament b Polyester spun roving c Cotton roving F Composite yarn

Claims (4)

  A composite yarn comprising a synthetic fiber roving, a natural fiber roving, and a synthetic fiber filament supplied to the center of the two rovings.   2. The composite yarn according to claim 1, wherein the synthetic fiber filament is a polyester filament, the synthetic fiber roving is a polyester spun roving, and the natural fiber roving is a cotton roving.   The composite yarn according to claim 2, wherein the polyester filament is a bundle of a plurality of filaments of 0.69d or less.   A fabric having a high water absorption and quick drying property, wherein the composite yarn according to any one of claims 1 to 3 is made into a woven or knitted fabric.