JPH01306647A - Pile cloth - Google Patents

Abstract

PURPOSE:To obtain a piled cloth having a polychromic feeling, melange tone and an improved high-quality feeling, by using both colored polyester spun-dyed yarns having specific migration degree of pigment and non-spun-dyed polyester yarns, dyeing the whole cloth with disperse dye. CONSTITUTION:Colored polyester spun-dyed yarns (preferably one or more of orange, red, blue or green spun-dyed yarns) A and D having <=10.0, preferably <=6.0 migration degree of pigment and non-spun-dyed polyester yarns (preferably one containing readily dyeable polyester copolymerized with 1-6wt.% polyalkylene glycol) B and C are alternately woven to give a cloth, which is dyed with disperse dye to give pile cloth suitable as interior automotive trims. A colored polyester spun-dyed yarn and a non-spun-dyed polyester yarn having >=1.0 ratio of peak temperature of tandelta of colored polyester spun-dyed yarn/peak temperature of tandelta of non-spun-dyed polyester yarn are preferably used.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a high quality pile fabric. In more detail, it is about a highly sensitive pile fabric that is a mix of various colors.

[Prior Art] Pile fabrics made of polyester yarn have been widely used for clothing and construction. In particular, for automobile interior applications, mainly car seats, the good light resistance of polyester yarn is utilized, and the amount of pile fabrics using polyester yarn is rapidly expanding.

Pile fabrics used for car seats have also become more sophisticated in recent years, and fabrics with a mix of many colors are preferred over single-color pile fabrics. To meet these needs, - Inside the shell, regular polyester yarn, cationic dyeable polyester yarn, and nylon yarn are interwoven in the pile part, and dyed with disperse dyes, basic dyes, and acid dyes. It is being carried out to express the

[Problems to be Solved by the Invention] However, with the above method, only up to three colors can be expressed, and since nylon is used, there may be problems with fusion during processing of the fabric, and the light resistance of the obtained fabric may be poor. This is not preferable as it also reduces the quality.

On the other hand, there are pile fabrics that use yarn-dyed yarn dyed in various colors in the pile part to express more colors.
Since a yarn dyeing process (cheese dyeing) is required, the cost becomes extremely high, making it impractical, and the range of application is extremely narrow due to the high cost.

Ideally, it would be desirable to obtain three or more colors by anti-dying (dying the fabric after knitting it), rather than using yarn that is yarn-dyed from a polyester pile fabric with a mixed pile part. There is.

An object of the present invention is to provide a pile fabric in which three or more colors are mixed at a low cost.

[Means for solving the problem] That is, a pile in which chromatic polyester spun-dyed yarn and non-spun-dyed polyester yarn with a pigment migration degree G of 10.0 or less are mixed in the pile portion, and the entire pile is dyed with a disperse dye. The object of the present invention can be achieved by using a fabric.

The present invention will be explained in detail below.

The polyester of the present invention is a polyester containing ethylene terephthalate as a main repeating unit.

Although there are known spun-dyed polyester yarns such as black spun-dyed yarn and Katch spun-dyed yarn, in the present invention, chromatic spun-dyed yarn is used because such commercially available spun-dyed yarns (particularly black spun-dyed yarns) have significant design limitations. In particular, it is preferable to use one or more types of dyed yarns such as orange, red, blue, and green yarns because they give a high-class feel.

Such dyed yarns are usually obtained by adding pigments to polyester, but if this selection is inappropriate, dyeing of fabrics mixed with non-dyed polyester yarns with disperse dyes may result in the dyeing of the dyed yarns. The pigment in the dyed yarn bleeds out and contaminates the non-dyed polyester yarn, resulting in an extremely poor sense of luxury and multicolor appearance. In order to avoid such problems, in the present invention, it is necessary to use a spun-dyed yarn with a pigment migration degree G of 10.0 or less, and it is more preferable that the pigment migration degree G is 6.0 or less.

Pigment migration degree G is determined by using tube-knitted fabrics of chromatic color spun-dyed yarn and regular polyester yarn, and boiling the spun-dyed yarn and regular yarn in clear water at 130°C for 60 minutes in the same bath, before and after the boiling treatment. The L value, a value, and b value of the tubular knitting rti of regular polyester yarn were obtained using an SR color computer manufactured by Suga Test Instruments Co., Ltd., and were calculated using the following formula. ) is a parameter that indicates the degree of pigment migration.

In the present invention, a fabric is made by inter-knitting the above-mentioned chromatic spun-dyed yarn and normal polyester yarn, and then dyed with a disperse dye to obtain a pile fabric in which multiple colors are used in the pile portion.

At this time, if the ratio of the tan δ peak temperature T1 of the chromatic dyed yarn used to the tan δ peak temperature T2 of the normal polyester yarn used in the mixture, T + / T 2, is 1.0 or more, There is little change in the hue of the yarn, making it easy to design.

The peak temperature of tan δ is determined by using a Pybron DDV-II model manufactured by Toyo Baldwin Co., Ltd., by obtaining a tan δ-temperature curve at a frequency of 110 Hz and a heating rate of 3° C./min, and reading the temperature corresponding to the peak of tan δ.

The ratio of the peak temperature T1 of tan δ of the spun-dyed yarn to the peak temperature T2 of tan δ of the non-spun dyed polyester yarn T 1/
The fact that T2 is 1.0 or more (the peak temperature of the spun-dyed yarn is higher) corresponds to the fact that the mobility of the molecular chains in the amorphous portion is lower in the spun-dyed yarn.

In other words, this corresponds to the fact that spun-dyed yarns are less likely to be dyed with disperse dyes than non-spun-dyed yarns. If spun-dyed yarn is less susceptible to being dyed by disperse dyes, when it is mixed with non-spun-dyed yarn and dyed, there will be less hue change in the spun-dyed yarn, making it easier to create patterns with a rich multicolor feel.

In order to make the ratio TI/T2 of the peak temperature of tan δ 1.0 or more, for example, the degree of polymerization of the spun-dyed yarn must be increased compared to that of the non-spun-dyed yarn, and the degree of orientation of the spun-dyed yarn must be increased (i.e., the degree of orientation of the spun-dyed yarn must be increased). Examples include, but are not limited to, methods such as lowering the glass transition temperature), strengthening heat treatment, and blending or copolymerizing rigid and linear chains that increase the glass transition point.

Furthermore, if you add cationic dyeable polyester yarn as a polyester yarn other than the spun-dyed yarn, the pile part can be dyed with basic dyes and disperse dyes in addition to the spun-dyed yarn, giving a rough multi-color mixed feel and a luxurious look. will improve.

Also, at this time, as a non-dyed polyester yarn to be dyed with a disperse dye, 1 to 10% of polyalkylene glycol (preferably polyethylene glycol with a molecular weight of 600 to 2000) is used.
When using easily dyeable polyester copolymerized with 6% by weight,
A large amount of disperse dye is absorbed by the easily dyeable polyester, and the amount of disperse dye absorbed by the mixed yarn and cationic dyeable polyester yarn is reduced. This is preferable because the difference in hue between the mixed prefectures can be made clearer, and the multi-color mixed feel and luxury feel can be greatly improved.

FIG. 1 shows an example of the pile fabric of the present invention.

As shown in Figure 1, red spun-dyed polyester yarn (
A), an easily dyeable polyester yarn (B), a cationic dyeable polyester yarn (C), a green spun-dyed polyester yarn (D), and a regular polyester yarn for the ground section 1.
The pile part is dyed in four colors (undiluted dye (2), disperse dye (1), and basic dye (1)) to create a multicolored feel.

[Example] The present invention will be explained in more detail with reference to Examples below.

Example Pigment migration degree G is 6.0. The peak temperature of tan δ is 1
A red plain polyester yarn (75 denier 36 filament) at 38°C, a green spun-dyed polyester yarn (75 denier 36 filament) with a pigment migration degree G of 7.7 and a tan δ peak temperature of 137°C, and a polyethylene glycol with a molecular m of 1000. Easy-dyeable polyester yarn (75 denier 2
4 filament), 2.3 mol% of 5-sodium sulfoisophthalate was copolymerized, and the peak temperature of tan δ was 1.
A cationic dyeable polyester yarn (15 denier, 36 filaments) at 37°C was used as the pile yarn, and a regular 100 denier, 36 filament polyester yarn was used for the ground section to obtain a pile knitted fabric as shown in FIG. 1. The resulting pile knitted fabric was dyed with a basic dye at 130°C, and then additionally dyed with a disperse dye at 130°C. The dyed knitted fabric was dried and finished according to a conventional method to obtain a pile fabric. When the resulting pile fabric was viewed up close, it had a fine mix of four colors, had a melange-like appearance, and had an excellent sense of luxury.

Comparative example> Pigment migration degree G is 12.4, peak temperature of tan δ is 13
A blue spun-dyed polyester yarn (75 denier 36 filaments) at 6°C, a normal polyester yarn (75 denier 36 filaments) with a tan δ peak temperature of 138°C, and 5
- A cationic dyeable polyester yarn copolymerized with 2.3 mol% sodium sulfoisophthalate and having a tan δ peak temperature of 131°C was used as the pile yarn, and a pile fabric was obtained under the same conditions as in the example except for that. . In the dyed pile fabric, the polyester yarn and cationic dyeable polyester yarn were usually contaminated by the pigment of the blue undyed yarn, and the difference in hue between each was unclear, and the fabric lacked a sense of multicolor and was of low quality and cheap. .

[Effects of the Invention] As described above, in the present invention, a pile fabric in which three or more colors are mixed can be obtained at a low cost, and the pile fabric thus obtained is a fine mix of four colors, resulting in a melange. It had an excellent sense of quality and luxury.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an example of the pile fabric of the present invention. 1 Nigelland part A: Red dope-dyed polyester yarn B: Easily dyed polyester yarn C: Cationically dyeable polyester yarn D: Green original dyed polyester yarn Patent applicant Toshi Co., Ltd. Figure 1

Claims (3)

[Claims] (1) A pile fabric in which a chromatic polyester yarn with a pigment migration degree G of 10.0 or less and a non-spill-dyed polyester yarn are mixed in the pile portion, and the entire fabric is dyed with a disperse dye. (2) The pile according to claim 1, wherein the tan δ peak temperature T_1 of the chromatic polyester yarn is T_1/T_2≧1.0 with respect to the tan δ peak temperature T_2 of the non-spun dyed polyester yarn. fabric. (3) The pile fabric according to claim 1 or 2, wherein the non-dyed polyester yarn contains an easily dyeable polyester copolymerized with 1 to 6% by weight of polyalkylene glycol.