JPS6021941A - Anti-pilling cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION A1 Field of the Invention The present invention relates to a fabric using composite spun yarn. More specifically, the present invention relates to a fabric using a composite spun yarn consisting of short fibers and filament threads, and which has extremely excellent anti-pilling properties.

B. Prior art and its problems Conventionally, the yarns used for two-knit fabrics include spun yarns and filament yarns, and they have been used differently depending on the purpose and use. However, although spun yarn using two synthetic fibers has high strength and is excellent in terms of durability, it is impossible to avoid the occurrence of pilling in clothing because of the high strength of double synthetic fibers. The mechanism of pilling is thought to be that the short fibers first slip off due to external force when worn, and the fluffy ends become entangled and grow, forming what is called a pill.

Here, the fiber length 1 strength contributes to slipping.

Fiber properties such as elongation and young i can be considered, but if the strength is as low as 1%, single fibers will fall off during the process of fuzz getting entangled with each other, and since pilling will not be generated, the contribution of fiber strength is most likely. It can be said that it is a dog.

As a countermeasure against pilling, there is active development of polymers with reduced strength due to lower molecular weight or copolymerization of third components, etc.
Fabric strength, especially tear strength, is low, causing wear and tear and lack of durability. There are problems such as hangnails occurring due to abrasion of the rough fluff edges, the fabric surface appearing whitish (frosting phenomenon), and the inability to develop into dark colored materials. Furthermore, it has been pointed out that heat during the dyeing process etc. causes sagging, resulting in unevenness of the product.

On the other hand, a yarn in which filament yarns are twisted around a substantially untwisted short fiber bundle has been proposed, and although it has an advantage over the spun yarn yarn in terms of anti-build properties, it Because of this, the single fibers tend to slip off and are not necessarily at a satisfactory level. Furthermore, the filament threads of the composite yarn are tightly wound, and when the composite yarn is made into a wavy, slender fabric, the surface condition exhibits snakeskin-like unevenness, resulting in a deterioration in quality. This tendency is particularly noticeable in plain textiles and has become a fatal flaw.

In addition, not only fabrics using synthetic fiber threads but also fabrics using natural fiber threads (9) For example, men's underwear (underwear) using cotton-spun threads have no problem with anti-build properties, but after being worn for about 6 months to 1 year, The short fibers of the fabric tend to fall off, making the fabric look noticeably thin and slippery. This is due to the phenomenon that the short fibers have a weak tissue binding force, so they fall off little by little during washing. Therefore, for these types of fabrics, especially knitted fabrics with weak tissue binding force, there has been a desire for a technique that improves the durability compared to conventional fabrics.

C1 Purpose of the present invention The present invention is intended to solve the above-mentioned drawbacks, and the purpose is to use a composite yarn made by simultaneously twisting regular short fibers and filament yarns with high strength to provide anti-pilling properties. The purpose is to provide a fabric with excellent properties. Furthermore, by preventing short fibers from falling off from the fabric, anti-build properties are improved.

Moreover, it improves durability.

D0 Structure of the present invention The present invention has the following configuration.

[In a fabric containing a composite yarn of short fibers and filaments, the fabric has a strength of 3. [Contains short fibers of 1 g/a or more, and the filaments are arranged on the outer peripheral surface of the short fiber bundle and are wound in real twist, and the twist angle of the short fibers in the surface layer of the composite yarn and the filament are A fabric having anti-pilling properties characterized by comprising composite yarns having the same twist angle. In the present invention, short fibers include synthetic fibers such as polyester, polyamide, acrylic, and rayon.

Refers to chemical fibers such as acetate, and natural fibers such as cotton, linen, wool, and silk. Further, the fiber length may be any length within the range that allows normal spinning. The filament refers to a synthetic fiber filament such as polyester, polyamide, or acrylic.

In the present invention, the term "fabric" refers to a woven or knitted fabric.

The basis weight is preferably in the range of 70 to 350 g/m2. The bulk height is preferably in the range of 11 to 2.9 c+n7g.

Functions of the present invention In the present invention, the composite yarn used for the fabric is made by twisting short fiber bundles containing short fibers with a short fiber strength of 3.0 g/d or more and filament threads at approximately the same twist angle. The first characteristic is that it is a thing. The short fiber strength of m, o g/d or more means a lower limit value at which the anti-pilling properties of spun yarns containing fibers having a strength higher than this value are generally a concern, and is an important value. Needless to say, as the value increases, the pilling performance decreases. Pilling performance, durability, and anti-frosting properties are inversely correlated, and the present invention can have both of these contradictory properties.

The second feature of the present invention is that the J-lament yarn is a composite yarn wound around the outer periphery of a short fiber bundle. The yarn structure of the present invention has a rod-like shape with respect to the yarn axis, and in the fabric, the filament threads have the effect of preventing short fibers from slipping and imparting smoothness, thereby improving not only the appearance quality but also the anti-pilling performance. It goes without saying that the filament yarn of the present invention may be a monofilament yarn or a multifilament yarn. still.

A combination of monofilament and multifilament yarn may be used, and furthermore, raw yarn or curly yarn may be used. Here, when obtaining the composite yarn of the present invention,
It goes without saying that it is also possible to combine raw yarn with short fibers while shrinking it. Furthermore, in the present invention, in addition to the shrinking process described above, heat treatment and the like may be continuously performed. Furthermore, it is preferable for the filament to be formed by actually twisting and winding short fiber bundles at the same pitch for the rod shape.

The composite yarn of the present invention can be obtained by providing a yarn length difference between the short fiber bundle and the filament yarn when they are combined, and the filament yarn is 10 to 20.0% of the short fiber bundle.
It is intended to overfeed, and may be selected appropriately according to the composite yarn design.

The present invention will be explained in more detail with reference to the drawings. FIG. 1 shows an embodiment of the device for obtaining the composite yarn constituting the fabric of the present invention. First, a roving 1 is set in the rear part of a conventional ring spinning machine, and A short fiber fleece 6 is sent out by drafting between the rollers 4 and 5.The apron 3.3' is shown in the figure.Furthermore, the front top roller 5 has a large diameter portion 5-a and a small diameter portion 5-b stepped. As a roller, the short fiber fleece 6 is rolled from the large diameter portion 5-a.
It is something that sends out. The filament yarn 7 is then pulled into a tensioning device 8. It is fed through a guide 9 to feed rollers 10, 10', and through a guide 11 to the front top roller 5.
The filament 7 is guided through the gap between the small diameter portion 5-b of the snail guide and the front bottom shaft 4, and is combined with the short fiber fleece 6 and twisted to obtain a composite yarn spun yarn 12. 13. Delivery bobbin 14. A traveler 15 is shown. The yarn speed relationship when the short fiber fleece 6 and filament 7 are combined is such that the filament yarn 7 is fed out earlier than the short fiber fleece 6, and the front bottom shaft 4 and feed rollers io and io' are made to rotate synchronously. good.

The overfeed ratio of the filament yarn 7 to the short fiber fleece B is preferably in the range of 1.0 to 20, and is desirably selected appropriately in accordance with the design of the composite yarn 12.

FIG. 2 shows a mode in which the front top roller 5 is of a conventional type and the yarn is guided from the front side of the roller 5.

FIG. 3 shows a side view of the conventional spun yarn 13, and it is clear that each fleece is twisted at the same twist pitch. Further, the guide yarn 16 has many fluffs around it. FIG. 4 is a side view of the composite yarn 12 applied to the fabric of the present invention, in which the filament yarn 7 is wound around the short fiber bundle O, and the winding angle is different between the filament yarn 7 and the short fiber bundle O. It is the same as 6. Furthermore, since the filament yarn 7 is wound around the short fiber bundle 6, the conventional spun yarn 1
Similar to No. 6, it has a ring-like shape and the fuzz is suppressed, so that the fuzz that protrudes to the outside is extremely small. FIG. 5 shows a composite yarn 14 wound around a non-twisted staple fiber fleece B of the prior art. Since the short fiber bundles of the guiding yarn 14 are wavy or uneven, the short fibers easily slip off and have poor anti-build properties. In addition, since the thread form is uneven, the surface of the fabric becomes snakeskin-like, resulting in a disadvantage in that the quality of the appearance is significantly degraded.

Furthermore, since the filament cannot exist unless the filament is tightly tightened, it has the disadvantage that the texture becomes rough and hard.

The fabrics of the present invention include thin fabrics for spring and summer such as shirts and blouses (weighing 80 to 150 g/m2), slacks,
Woven fabrics for spring/summer clothing such as jackets (weighing 150-260)
g/m2), fall/winter thick fabrics such as slacks and suits (weighing 220 to 330 g/m2), underwear (knitted cotton jersey),
It is suitable for use in jerseys for training wear, woven and knitted fabrics for knee-high sportswear, sheets, futon covers, -ff tuffton bars, pajamas, children's clothing, and the like.

The anti-pilling property of the fabric in the present invention is generally 4th grade to 5th grade, and in some cases it is extremely high grade 5 in the IC construction method of the textile test of the J Engineering S Standard.

It also has the characteristic that it hardly becomes thin even after repeated wearing and washing.

Effects of the present invention The effects of the present invention will be listed below.

■ It is a composite yarn in which the filament yarn is wound around the outer periphery of a short fiber bundle with the same twist angle and the same twist, giving the fabric a smooth and elegant appearance.

■ Appearance similar to conventional ring yarn and excellent anti-pilling performance.

■ Stable spinning can be achieved with a simple device, the twist coefficient can be reduced, and the corrosion resistance is excellent, so the total cost of the product is low.

■ The durability of the fabric is good.

The present invention will be explained in more detail below based on Examples.

Example 1 Polyethylene terephthalate staple fiber 1.25 d x
44 mm (single fiber strength 6.6 g7cJ-) and polyethylene terephthalate filament yarn 30D
-12fil (single fiber strength 5.8 g, /d) was used, and the overfeed rate of the filament yarn was 5.6 inches,
British fine count 60 S/1 was spun. Twist coefficient is -6
4 (twist number is 26.3 T/1nch), and the spindle rotation speed was 12,000 rpm. The yarn obtained in this example was set to prevent twisting (90°C x 20 minutes) and used for woven and knitted fabrics. First of all, for textiles, the vertical x horizontal density is 110 x 10
A plain weave of 5 pieces/in Qh was obtained. The fabric is dyed and finished.

The physical properties of the fabric were evaluated. the result.

Weight: 100 g/m2 Anti-pilling performance: Grade 5 (LCX method 1Qhr) Anti-frosting performance: Grade 5 (ART method 10 minutes). In addition, the product quality was such that there was no snakeskin-like unevenness or neps caused by rubbing, and the product was aesthetically pleasing and had good drape properties.

On the other hand, when it was used on a 30G single knit machine, it had excellent process passability. The physical properties of the obtained product were evaluated. the result.

Planned area: 12867m2 Building resistance: Grade 5 (IC construction method 5 hours).

Grade 5-4 (IC construction method 1Qhr) Met. Moreover, the product texture was also good and elegant.

For comparison purposes, the polyethylene terephthal short fibers used in the nine examples were 1.25 d x 44 mm1.
When we spun 60B/- using 00% and applied it to 9 knits and woven fabrics, the woven fabrics were 2nd grade, 2 knitted fabrics were 1st grade, and none of them achieved the 6th grade level, which has no practical problems, and product development is not possible. It was possible. Furthermore, when passing through the process, there are many neps.9
The surface quality deteriorated significantly.

Example 2 Polyethylene terephthalate staple fiber 1.3 cL x
Rove yarn made by blending 50% of 8mm and 50% cotton (Sunforkin cotton) and polyethylene terephthalate filament yarn 50D-24fil (single fiber strength 5.2 g/d)
), and the overfeed rate of the filament yarn is 6.0.
% and was spun using a British fine count of 45S/- with a twist coefficient of 5. The spindle rotation speed was 11.000 rpm. Twisting the thread obtained in this example
20 minutes) Set the woven fabrics (flat and 2/2 twill) and knitted fabrics (
32G Tenjiku and Kakko). The fabric (Shutting standard) was subjected to an air jet room. At the same time, as a comparison yarn, a roving having the same structure as the short fibers of this example was used to make a trial spun yarn under the same conditions and commercialize it. As a result, the anti-pill performance was as shown in Table 1, and the anti-pill performance was dramatically improved. In particular, it is significant that it has passed grade 6 or above, which is suitable for practical use in loosely knitted fabrics.

Furthermore, in terms of surface quality, a smooth and aesthetically pleasing surface was obtained with no occurrence of neps caused by coral. Furthermore, compared to products using conventional spun yarns, this fabric product has superior tension and drapability at the same time.

Table 1

[Brief explanation of drawings]

FIG. 1 shows one embodiment for obtaining a composite spun yarn constituting the fabric of the present invention. FIG. 2 also shows one embodiment. FIG. 6 shows a conventional spun yarn, FIG. 4 shows a composite spun yarn of the present invention, and FIG. 5 shows a cross-sectional view of a composite spun yarn in which filament yarns are arranged around a staple fiber bundle without staple fibers. 1: Roving 6: Short fiber fleece 7: Filament yarn 12: Composite spun yarn 14: Take-up bobbin 15: Traveler 5-a: Front roller small diameter section 5-b = Front roller large diameter section Patent applicant Azuma Shi Co. Ceremony Company Grass 2nd 3rd Old 41st Chung Ho 10th

Claims (5)

[Claims] (1) A fabric containing a composite yarn of short fibers and filaments, the fabric contains short fibers with a 9 strength of 3.0671 or more, and the filaments are arranged on the outer peripheral surface of the short fiber bundle and are twisted and wound. A fabric having anti-pilling properties, further comprising a composite yarn in which the twist angle of the short fibers and the twist angle of the filaments in the surface layer of the composite yarn are almost the same. (2) The fabric having anti-pilling properties according to claim (1), wherein the proportion of short fibers in the composite yarn is 60 to 95% by weight. (3) The fabric having anti-buildability properties according to claim (1), wherein the short fibers are synthetic fibers and/or natural fibers. (4) The fabric having anti-pilling properties as set forth in claim (1), wherein the fabric has a basis weight of 70 to 35,067 m2. (5) The bulk height of the fabric is 1.1 = 2.9 cm3/g
A fabric having pile building properties according to claim (1).