JP2002129443A - Chenille yarn with chambray-toned appearance and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chenille yarn having fancy yarns differing in length from each other and also dyed in mutually different hues, and to provide a method for producing such a chenille yarn by piece dyeing. SOLUTION: This mogol yarn comprises core yarns and fancy yarns; wherein the fancy yarns comprises at least two kinds of polyester fibers differing in length from each other and dyed in mutually different hues.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding yarn having a chambray appearance and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, mall yarns have been manufactured by twisting yarns cut to a certain length while being sandwiched between two core yarns. At this time, natural fibers such as silk, acetate, polyamide,
Synthetic fibers such as polyesters are used, and recently, mall yarns in which two or more kinds of flower yarns dyed in different hues are combined to further enhance the design effect have been developed.

[0003] However, as described above, it is not enough to simply use the yarns having different hues to exhibit a sufficient design effect. However, in general, since the yarn is manufactured using a special twisting machine equipped with a thread cutting knife, it is extremely difficult to make the yarn lengths different from each other due to mechanical restrictions. There was a problem.

[0004] In general, a mall yarn is obtained by including a heat-adhesive fiber in a core yarn and fusing the fiber.
Dyed yarn is formed after the yarn has been formed, since it prevents the yarns cut to a certain length from slipping off from the core yarn.
When so-called post-dyeing is performed, the thermo-adhesive fibers are melted again and the thread may slip off from the core thread, so the thread must be dyed in advance and the cost of thread dyeing is high. There was also a problem.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide moir yarns having yarns of different lengths and dyed in different hues, and the yarns. Is to provide a method for producing the same by post-dyeing.

[0006]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to achieve the above object, and as a result, when using at least two kinds of polyester fibers having different dyeing properties and heat shrinkage ratios as the yarn, it is desired to use the desired fibers. Of the mall yarn.

That is, according to the present invention, (1) in a mall yarn composed of a core yarn and a yarn, the yarn is
Molle yarns having a chambray-like appearance characterized by containing at least two kinds of polyester fibers dyed in different colors and having different lengths, and (2) different in dyeability and heat shrinkage At least 2
The present invention provides a method for producing a mall yarn having a chambray-like appearance, characterized by dyeing two kinds of polyester fibers into different hues after twisting the two kinds of polyester fibers as a yarn.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.

[0009] The mall yarn of the present invention comprises two core yarns and a yarn which is twisted while being sandwiched between the two core yarns and which exhibits a design effect.

[0010] It is necessary that the flower yarn is composed of at least two kinds of polyester fibers having different dyeing properties and heat shrinkage rates.

Here, the polyester fiber is a polyester polymer containing terephthalic acid as a main acid component and an alkylene glycol such as ethylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol as a main glycol component. Say fiber.

The polyester may be a polyester in which a part of the terephthalic acid component is replaced by another difunctional carboxylic acid component, or a polyester in which a part of the glycol component is replaced by a diol component other than the glycol. Is also good.

The bifunctional carboxylic acids other than terephthalic acid used herein include, for example, isophthalic acid, naphthalenedicarboxylic acid, diphenyldicarboxylic acid, diphenoxyethanedicarboxylic acid, adipic acid, sebacic acid,
Aromatic, aliphatic and alicyclic bifunctional carboxylic acids such as 1,4-cyclohexanedicarboxylic acid can be mentioned.

The diol compounds other than the above-mentioned glycols include, for example, cyclohexane-1,4-dimethanol, neopentyl glycol, bisphenol A,
Aromatic, aliphatic and alicyclic diol compounds such as bisphenol S can be mentioned.

As described above, the two types of polyester fibers having different dyeing properties and heat shrinkage rates are as described above, in which a part of the terephthalic acid component and / or the glycol component is partially replaced with another difunctional carboxylic acid component and / or other Of the polyester fibers replaced with a diol component of the copolyester, or spinning, drawing, at least two types of polyester fibers exhibiting different color development behavior and heat shrinkage behavior among polyester fibers having variously changed conditions such as heat treatment, Specific examples include a false twisted yarn made of polyethylene terephthalate and a drawn yarn obtained by copolymerizing a polyethylene terephthalate polymer with a 5-sodium sulfoisophthalic acid component.

The fineness, the number of filaments, and the cross-sectional shape of the fibers are not limited at all. Further, the fibers include various fiber aggregate forms such as yarns, spun yarns, cords, and the like, and two types of fibers may be composited by blending or blending.

In the present invention, the above-mentioned two kinds of polyester fibers are used as a yarn, and twisted while being sandwiched between two core yarns according to a conventional method, thereby forming a mall yarn. At this time, any fiber can be used for the core yarn, but it is preferable that the core yarn is a polyester fiber that can adopt the same dyeing temperature. From the viewpoint of design effect, the above two types of polyester fibers are dyed. It is more preferable that the polyester fibers have different properties.

Further, it is preferable to prevent the slippage of the flower yarn from the core yarn by incorporating the heat-adhesive fiber into the core yarn by an arbitrary method such as drawing, and fusing the fiber by heat treatment. . This heat treatment may be performed after forming the molding yarn, by providing a heat treatment step such as dry heat treatment with a hot oven or wet heat treatment with steam separately.
Heat treatment may be performed simultaneously in the dyeing step described later.

As the above-mentioned heat-adhesive fiber, conventionally known fibers such as a heat-fusible fiber composed of a single component and a conjugate fiber containing a low-melting component can be used. Examples of the heat-fusible fiber composed of a single component include an undrawn polyester fiber, a low-melting polyester fiber, and a low-melting polyamide fiber. Examples of the composite fiber containing a low-melting component include a low-melting polyester fiber and a high-melting polyester fiber, and a combination of a low-melting polyamide fiber and a high-melting polyester fiber. Alternatively, there is a core-sheath type.

[0020] The mall yarn obtained by the above method is
Since two types of polyester fibers having different dyeing properties and heat shrinkage rates are included as a flower yarn, when subjected to heat treatment, a difference in shrinkage is expressed, resulting in flower yarns having different lengths, so that an excellent design effect is obtained. Is played. Furthermore, when the mall yarn is dyed, the yarns are dyed into different hues and have different lengths, so that the design effect is further improved. The maul yarn may be dyed in the state of a thread, or may be dyed after forming into a woven or knitted fabric.

The above heat treatment may be carried out after forming the molding yarn, by providing a separate heat treatment such as dry heat treatment with a hot oven or wet heat treatment with hot water or steam. It does not matter. In addition, as described above, heat treatment may be performed at the same time when the heat-adhesive fibers are fused to prevent slippage of the yarn from the core yarn.

[0022]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, which should not be construed as limiting the present invention. In addition, each physical property in an Example was measured by the following method.

(1) Perimeter of boiling water shrinkage (BWS) 1.12
Using a 5 m measuring machine, sample was sampled 10 times to make a skein, and the skein was hung on a hanging nail of a scale plate. Then, a load of 1/30 of the total fineness of the skein was hung below the skein. Read the skein length L1. Then remove the load and put the skein in a cotton bag and soak in boiling water for 30 minutes. Thereafter, the skein is taken out, dried with filter paper and air-dried for 24 hours, again hung on a hanging nail of a scale plate, and the same load is hung below the scale plate to read the skein length L2 after the treatment.

The boiling water shrinkage (BWS) was calculated by the following equation.

[0025]

(Equation 1)

[Example 1] As the core yarn, 167 dtex /
Two 48 filament drawn polyethylene terephthalate yarns and a thermo-adhesive fiber (111 dtex) having a melting point of 150 ° C.
/ 24 filaments) and used as a yarn for the polyethylene terephthalate false twisted yarn of 111 dtex / 144 filaments and the polyethylene terephthalate polymer of 83.3 dtex / 36 filaments.
-A mulled yarn was produced using a cationic dyeable polyester filament yarn copolymerized with sodium sulfoisophthalic acid component.

The polyethylene terephthalate false twisted yarn and the polyethylene terephthalate polymer have a
The boiling water shrinkage of the cationic dyeable polyester filament yarn obtained by copolymerizing sodium sulfoisophthalic acid component was 5% and 50%, respectively.

In manufacturing the mall yarn, using a mall yarn manufacturing apparatus manufactured by Noboru Ozeki Co., Ltd., the yarn is first wound around a triangular gauge by rotating a fryer.
Furthermore, the wound yarn is wound around the base of the gauge along the taper of the gauge, and then cut by a knife between the feed rollers while being scraped out by the feed roller, and sandwiched between two core yarns.

The resulting mall yarn is then subjected to a dry heat treatment at 170 to fuse the heat-adhesive fibers,
Sliding of the yarn from the core yarn is prevented.

Next, the molding yarn is skeined at 130 ° C.
Stained for 45 minutes. The dye composition at this time was as follows. Teratop Pink 2GLA 1.8% owf Teratop Blue HLB 0.4% owf Aizen Cathilon Black CD-BLH 5.8% owf Irgasol DAM 1g / l Acetic acid 0.5g / l Here, Teratop and Irgasol DAM are Ciba Specialty. Aizen Cathilon manufactured by Chemicals Co., Ltd. is a dye manufactured by Hodogaya Chemical Industry Co., Ltd.

The obtained mulled yarn has different lengths of yarns dyed in different hues, and plain yarns are woven using the mulled yarns as wefts. A woven fabric having an excellent design effect was obtained.

Example 2 The procedure of Example 1 was repeated, except that, instead of dyeing the mulled yarn in a skein shape, it was dyed after forming a plain fabric.

The yarns constituting the obtained plain woven fabric have yarns of different lengths which are dyed in different hues, respectively, and the plain woven fabric has an unprecedented superior design effect. Met.

[Comparative Example 1] In Example 1, only a cationic dyeable polyester filament yarn obtained by copolymerizing a polyethylene terephthalate polymer of 83.3 dtex / 36 filaments with a 5-sodium sulfoisophthalic acid component as a flower yarn was used. Except having performed, it carried out similarly to Example 1.

The obtained mulled yarn had only yarns dyed in a single color. When the mulled yarn was used for weft to form a plain weave, no sufficient design effect was exhibited.

[0036]

According to the present invention, the lengths are different from each other,
In addition, mall yarns having the yarns dyed in different hues can be easily obtained.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Hirokazu Hayashi 3-4-1, Amihara, Ibaraki-shi, Osaka Teijin Limited Osaka Research Center F-term (reference) 4L036 MA05 MA24 MA33 MA37 MA39 PA05 PA21 PA46 RA03 RA10 RA14 RA27 UA01 UA12 UA16 4L048 AA20 AA50 AA55 AB20 AB26 AC07 BA01 CA00

Claims (4)

[Claims] 1. A mall yarn composed of a core yarn and a yarn, wherein the yarn comprises at least two types of polyester fibers having different lengths and dyed in different hues. A mall yarn with a chambray appearance. 2. The molding yarn according to claim 1, wherein the core yarn contains binder fibers having a melting point of 130 ° C. or higher. 3. After twisting at least two types of polyester fibers having different dyeing properties and heat shrinkage rates from each other as a yarn with a core yarn, the two types of polyester fibers are dyed in different hues. A method for producing a mall yarn having a chambray-like appearance. 4. The method according to claim 3, wherein the core yarn contains a heat-adhesive fiber having a melting point of 130 ° C. or more.