JPH06346339A - Multicolored woven fabric - Google Patents

Abstract

PURPOSE:To obtain a multicolored woven fabric having excellent inter-lot dyed color reproducibility by multicolor dyeing. CONSTITUTION:This multicolored woven fabric is produced by using a cation- dyeable polyester multifilament yarn in combination with a polyamide multifilament yarn. The polyamide multifilament yarn is a spin take-up yarn spun at a winding speed of >=4,000m/min.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a different color woven fabric, and more particularly to a different color woven fabric which has good reproducibility of different color dyeing (chambray).

[0002]

2. Description of the Related Art Generally, a combination of yarns having different dyeing properties is known as a fabric of different color (chambray). Specifically, it is a warp of a cationic dyeable polyester yarn (dark dyed yarn). And a regular polyester yarn (light dyed yarn) weft, a spin take-up type polyester yarn (dark dyed yarn) spun at a winding speed of 6000 m / min or more and a regular polyester yarn or 4000 m / min or more Spin draw take-up yarn (light dyed yarn) spun at a winding speed, regular nylon yarn (dark dyed yarn) and regular polyester yarn (light dyed yarn), and regular nylon yarn (dark dyed yarn) And a cation dyeable polyester yarn (light dyed yarn).

The dyeing of these interwoven fabrics is usually carried out by high-pressure dyeing (120 to 130 ° C.) in the first bath, mainly dyeing lightly dyed yarns, and then normal-pressure dyeing (98 to 100 ° C.) in the second bath. If necessary, a deep dyeing yarn is mainly dyed by using a carrier, but there is a drawback that the chambray color tone is slightly different between dyeing lots and dyeing cannot be performed with good reproducibility. It is considered that this is because the distribution of the dye to the deep dyed yarn and the light dyed yarn in the dyeing of the first bath is subtly different between the dyeing lots. Such poor reproducibility of color tone between lots is due to interwoven fabrics of regular nylon yarn (deep dyed yarn) and regular polyester yarn (light dyed yarn), regular nylon yarn (deep dyed yarn) and cationic dyeable polyester. Thread (light dyed thread)
This tendency is remarkable in the mixed woven fabric of No. 1, and the dyeing condition management standard is stricted when dyeing these fabrics, but the present situation is that satisfactory reproducibility has not yet been obtained. .

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and to provide a different color woven fabric which is excellent in color tone reproducibility of different color dyeing between dyeing lots.

[0005]

According to the present invention, in a different color woven fabric in which a cationic dyeable polyester multifilament yarn and a polyamide multifilament yarn are mixed, the polyamide multifilament yarn is spun at a winding speed of 4000 m / min or more. The present invention relates to a different color woven fabric characterized by being a spin take-up yarn.

The polyamide multifilament yarn used in the present invention is 4000 m / min or more, preferably 450
It is a spin take-up yarn spun at a winding speed of 0 m / min or more. If the winding speed is less than 4000 m / min, the reproducibility of the color tone of different color dyeing between the dyeing lots of the woven fabric obtained by mixing them will decrease. Typical examples of the polyamide multifilament yarn include nylon 6 and nylon 66. However, as long as the object of the present invention is not impaired, those copolymerized with other components may be used and are usually used. It may also contain additives such as stabilizers, matting agents, ultraviolet absorbers and antistatic agents.

As the cationic dyeable polyester multifilament yarn used in the present invention, a copolymer obtained by copolymerizing a sulfonic acid group-containing monomer, for example, a sodium salt of sulfonated isophthalic acid, as a dyeing seat component, particularly 5500 m / m Min or more, preferably 6000 m / min or more,
More preferably, a normal pressure cationic dyeable polyester multifilament yarn such as a spin take-up yarn spun at a winding speed of 7,000 m / min or more is preferable. As the third component, a copolymer obtained by copolymerizing isophthalic acid, polyethylene glycol or the like may be used. Here, the atmospheric pressure cationic dyeable polyester multifilament yarn means the cationic dye malachite green (manufactured by Kanto Chemical Co., Inc.
(Registered trademark) 5% owf, 0.5 g / l of acetic acid and 0.2 g / l of sodium acetate, a bath ratio of 50 times, a temperature of 95
The dye exhaustion rate of the dye dyed on the fiber after dyeing for 60 minutes at a temperature of 60 ° C. [amount of dye dyed on the fiber (weight) / amount of dye added to the dye bath (weight)] is 50% or more. Says a thread.

The cationic dyeable polyester multifilament yarn is used for ordinary polyester yarns,
For example, additives such as a matting agent, a stabilizer, an ultraviolet absorber and an antistatic agent may be contained. As a cationic dye,
It is possible to use a basic dye, a normal type cationic dye, a dispersion type cationic dye in which ionicity is blocked, and the like.
The different color woven fabric in the present invention is obtained by mixing the cationic dyeable polyester multifilament yarn and the polyamide multifilament yarn of the spin take-up yarn spun at a specific winding speed. The fineness of these filament yarns is not particularly limited, but the total denier is 20-
60 denier is preferred and 30-40 denier is especially preferred. The single yarn denier is preferably 1 to 10 denier, and particularly preferably 1 to 5 denier. In addition, the cross section of the single yarn is not limited to the round shape, but may be a modified cross section such as Y shape, L shape, and triangle. The cationic dyeable polyester multifilament yarn and the polyamide multifilament yarn may be used as the raw yarn, may be used after being mixed with or entangled with each other, or may be subjected to false twisting or fluid injection processing to obtain a bulky processed yarn. You may use.

The mixing form of the cationic dyeable polyester multifilament yarn and the polyamide multifilament yarn is appropriately selected according to the purpose, and examples thereof include the following mixing forms. (1) A cationic dyeable polyester multifilament yarn is used for one of the warp yarn and the weft yarn, and a polyamide multifilament yarn is used for the other. (2) A cationic dyeable polyester multifilament yarn and a polyamide multifilament yarn are mixed and used as the warp and the weft. (3) A cationic dyeable polyester multifilament yarn and a polyamide multifilament yarn are mixed in one of the warp yarn and the weft yarn, and a cationic dyeable polyester multifilament yarn or polyamide multifilament yarn is used in the other.

When a cationic dyeable polyester multifilament yarn and a polyamide multifilament yarn are mixed and used in one of the warp yarn and the weft yarn, the mixture of the warp yarns is as follows.
A method of sizing both of them simultaneously, a method of separately sizing both of them and preparing a warp, and the like can be adopted, and mixing with wefts can be performed using a weft free exchange loom. The texture of the different-colored fabric of the present invention is a flat texture,
Examples include a twill structure, a satin structure, and these modified structures, and a flat structure is particularly preferable.

The dyeing of cationic dyeable polyester multifilament yarn and polyamide multifilament yarn is
Although it can be dyed in one or two baths, it is preferably dyed in one bath from the viewpoint of reproducibility. Dyeing in one bath is
For example, it is carried out under normal pressure, preferably under high pressure, by mixing a dyeing solution containing an acidic dye and a dispersion type cationic dye with a precipitation inhibitor, a leveling agent and the like. The kind and combination of dyes, dye concentration, dyeing temperature and time are appropriately selected according to the purpose.

After dyeing, a usual finishing process can be carried out. Further, raising such as so-called peach skin may be imparted with, for example, emery paper, brush, needle cloth, etc. You may give finish processing. Further, finishing agents such as softening agents, water repellents, antistatic agents and the like may be used. The different color fabric of the present invention uses a specific polyamide multifilament yarn,
Excellent reproducibility of different color dyeing (chambray) between dyeing lots.

[0013]

EXAMPLES The present invention will now be specifically described with reference to examples, but the present invention is not limited thereto. Example 1 Using the following yarn (A) as a warp yarn and the following yarn (B) as a weft yarn,
A plain weave fabric having a warp density of 114 yarns / inch and a weft yarn density of 84 yarns / inch was prepared, scoured and pre-set, and then dyed in one bath under the following dyeing conditions, and then fixed, water repellent, and final set. To produce a different color fabric having a warp density of 118 yarns / inch and a weft yarn density of 84 yarns / inch. Ten lots were dyed under the same dyeing conditions, and the reproducibility of the color tone for each lot was examined. There was no variation between lots, and a beautiful chambray dyeing product with excellent reproducibility was obtained.

<Yarn> (A) 70d / 34f nylon 66 multifilament yarn obtained by a spin take-up system with a spinning take-up speed of 4500 m / min. (B) 2.2% sodium salt of sulfonated isophthalic acid
75d / 72f polyesterma multifilament yarn obtained by spinning polyethylene terephthalate copolymerized by mol%. <Dyeing conditions> Dyeing liquid components Kayanor Milling Blue 2RW
(1.0% owf to yarn (A)) Cation Red FB-DP (2.0% owf to yarn (B)) Ammonium sulfate (1.0 g / l) Precipitation inhibitor (2% owf) Leveling agent (3 0.0g / l) Bath ratio 1:20 Dyeing temperature 120 ° C Dyeing time 40 minutes

Comparative Example 1 The same procedure as in Example 1 was carried out except that a 70d / 24f regular nylon 66 multifilament yarn which was spun at 1000 m / min and then wound and wound was used as the warp in Example 1. A woven fabric was produced and similarly dyed and finished to finish a different color woven fabric. Ten lots were dyed under the same dyeing conditions, and the reproducibility of the color tone for each lot was examined, but the variation between lots was large and the reproducibility was poor.

[0016]

EFFECTS OF THE INVENTION Since the different color woven fabric according to the present invention uses the polyamide multifilament yarn of the spin take-up yarn spun at a specific winding speed, the reproducibility of different color dyeing (chambray) between dyeing lots. Excellent in.

Claims (1)

[Claims] 1. A different-colored woven fabric comprising a mixture of cationic dyeable polyester multifilament yarn and polyamide multifilament yarn, wherein the polyamide multifilament yarn is a spin take-up yarn spun at a winding speed of 4000 m / min or more. A unique color fabric.