JPS59150142A - Knitted fabric for swimming suit - 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 The present invention relates to a knitted fabric for swimwear which is inter-knitted with polyester yarn urethane elastic yarn and polyester fiber yarn dyeable with warm-pressure cation dyes.

Conventionally, swimsuits have been made from interwoven silk fabrics of polyester-based urethane elastic yarns and polyamide fiber yarns, but because these knitted fabrics are dyed with acid dyes, they have poor wet fastness, which is the most important requirement for swimsuits. After wearing it, the color often transferred to other items when I took it home. In addition, the dye was easily decomposed by the chlorinated water in the pool, causing discoloration.Also, when using metal-containing dyes to improve fastness, streaks may occur.
It was not possible to produce a clear color, and when bath-type Fix 1J or tannin Fix 1J was used, they were easily mixed with polyurethane fibers and easily deteriorated by light and salt.

In addition, swimsuits were made using polyester yarn, urethane elastic yarn, and interwoven silk fabric on polyester fiber yarn, but the silk fabric was
High-pressure dyeing When dyeing at 130"C, the polyurethane fibers were severely hydrolyzed, making it impossible to produce.Also, when dyeing in deep colors, a minimum temperature of 120"C is required, and even in this case, there is significant deterioration. Even if it were possible to produce it, the tension was low, the durability was poor, and clear colors could not be obtained.

Furthermore, in a swimsuit made of a cross-knitted fabric of ether-based polyurethane fibers and polyamide fibers, the ether-based polyurethane fibers were more degraded by chlorine water than the polyester threads and the urethane elastic threads, resulting in poor durability.

The present invention eliminates these drawbacks of conventional swimwear knitted fabrics, and because it has excellent chlorine resistance, dyed fabrics do not fade due to chlorinated water used in pools, etc., and have excellent color fastness. Another object of the present invention is to provide a knitted fabric for swimwear that does not have a decrease in tightening force and has excellent durability.

The present invention will be explained in detail below.

The polyester urethane elastic yarn referred to in the present invention is "
i'14'-diphenylmethane diisodiane-), l,
4-phenylene diisocyanate, 2.4-)lylene diisocyanate, naphthalene diisocyanate, hexamethylene diisocyanate, 1,4-cyclohexane diisocyanate, 4.4-dicyclohexylmethane diisocyanate, xylylene diisocyanate, or a mixture thereof. , preferably 4,4/-diphenylmethane diisocyanate and a molecular weight having hydroxyl groups at both ends are 600 to 7. O
OO's substantially linear glycols d such as ethylene glycol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol, etc. and succinic acid, geltaric acid, adipic acid, superric acid, Azelaic acid, nananocin, dodecane dicarbonate, β-methyl adipine h.

A polyester diol having a melting point of 60"C or less, preferably 40"C or less, produced from at least one organic dicarboxylic acid such as hexahydroterephthalic acid or dimer acid;
and polyfunctional active hydrogen compounds such as hydrazine, ethylenediamine, 1,2-propylenediamine, hexamethylenediamine, xylylenediamine, polyamines such as 4,4'-diaminodiphenylmethane, 4/-diphenylmethane disemicalpazide, β - Elasticity having a urethane bond in the molecule obtained by reacting at least one of aminopropionic acid hydrazide, carposihydrazide, water, ethylene glycol, 1,4-butanediol, etc., and optionally a terminal capping agent such as a monoamine. An example is an elastic thread made of a polymer.

The denier number of the polyester urethane elastic yarn is 20~
100 denier is suitable, preferably 40-70 denier. Moreover, either covered yarn or bare yarn may be used.

In addition, the atmospheric pressure cation dyeable polyester fiber yarn is a fiber yarn obtained by spinning polyalkylene terephthalate obtained by dyeing with a cationic dye at 1oO"C or less. For example, 1% of the ingredients
For example, 3. It can be obtained by high-speed spinning under OOOIll/classification, or if it is large, for example 6%, based on the total acid component, it can be obtained by spinning at a normal spinning speed.

In addition to polyalkylene terephthalate, polyesters are additionally copolymerized with acid components such as iso7-A/acid, sebacic acid, adipic acid, or polyhydric alcohol alkylene oxide adducts are present in polyalkylene terephthalate. It may also be one made by spinning a dried polyester.

The dyed polyester fiber yarn for atmospheric pressure cationic dyes may be filament yarn or spun yarn, but filament yarn is preferable in consideration of the appearance of the swimsuit.

The denier of the filament yarn does not need to be considered in particular, but if you consider the thickness and texture of the swimsuit, the total denier should be 30 to 70 denier, and the single wire M denier should be 1 to 5.
Denier, preferably 2-3 denier is preferred.

The polyester urethane elastic yarn described above and the
Silk fabric is knitted by inter-knitting with pressure thione dyeable polyester fiber yarn. The net fabric may be a horizontal knitted fabric or a warp knitted fabric, but a warp knitted fabric is preferable from the viewpoint of the function of the swimsuit. It may also be knitted with tricot wire,
It may be knitted using a Raschel knitting machine. In addition, the editorial organization is /
-7 knitting, reverse knitting -7 knitting, double atlas knitting, double denby knitting, etc., but the f-medium length ratio of the warp and width of the knitted fabric is 50% or more, preferably 100% or more in the warp and width. It is preferably 80% or more. Further, it is preferable that the surface of the knitted fabric is made of polyester fiber yarn from the viewpoint of texture.

In addition, polyester filament yarn is
Only cold-pressed cationic dyeable polyester fiber yarn may be used, or regular regular polyester filament yarn may be used in part.

In this case, the regular polyester filament yarn that is not dyed with the cationic dye remains undyed, resulting in a white pattern.

The silk fabric is scoured, relaxed, and dried under normal conditions.The appropriate heat setting temperature is 150-19.0"C, and the phantom temperature is 160-180"C.The dyeing conditions are 90"C. It may be dyed in a dye bath of ~100"C for 20 to 120 minutes, preferably 40 to 60 minutes, to obtain a plain dyed fabric, or it may be a printed fabric colored with atmospheric pressure saturated steam, or It may also be a printed fabric colored by superheated steam of ゛C.

Further, the dyeing machine may be a normal one such as a wince dyeing machine or a jet dyeing machine, or may be a normal pressure machine or a high pressure machine. If the dye is a regular one selected by the dye manufacturer for cationic dye-dyed polyester and has fastness and other properties suitable for use, it can be used as a general cationic dye by the dye manufacturer.
It may be a fixed value.

The knitted fabric for swimwear made of the above uses polyester-based urethane elastic yarn, so it has excellent chlorine resistance, less deterioration due to pool scraps, and improved durability. Since it uses dyed polyester fiber yarn, it can be dyed at 90 to 100"C, which reduces the deterioration of the polyester urethane elastic yarn, and because it is dyed with a cationic dye, it has excellent wet durability, and The effect is that the color is vivid and has excellent light fastness.

The present invention will be explained below with reference to Examples.

Example Polyethylene adibate diol, +-+'diphenylmethane diisocyanate, water, l-3-pyrene diamine, and 1.3 mol% of monoaminosodium sulfoisophthalic acid as an end-stopper. JJII compound with ethylene oxide (number of moles of ethylene oxide added: 3.5
mole) 4% copolymerized ethylene terephthalate thread boon 1 monoester"!!It length 160 cII+/
480 courses and 55 courses were processed using the gray machine under the following conditions.

O scouring/relaxation machine: Wide width relaxer Scouring aid: Marbon T 29/1 (Nion activator manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd.) Temperature x time: 8O-CX 30 seconds 0 Drying: Pin tenter 120"CX40
Seconds 0 heat set = pin tenter 180”C
X30 seconds 0 Dyeing machine Machine: Normal pressure loco type jet dyeing machine Dye: Aizen 0achilon Rθ
d FB-DPl, 8% o, t, f (Hodogaya Chemical Industry Co., Ltd.) % formula % Sodium acetate o, 3q/1 Dyeing temperature good The cells were stained with C for 40 minutes.

After dyeing, 1 g/l of nonionic activator was added at 80'C and soaped for 20 minutes.

0 Drying set: After centrifugal dehydration, pass through a bath containing Emalox 0EP-1 Yoshikutsu Yukagaku Co., Ltd. band 1 ((inhibitor) 5 g/!, remove liquid with a mangle, and dry with a pin tenter at 180'C for 30 seconds. I set it.

Comparative Example 1 Polyester type polyurethane elastic yarn 55 denier and polyethylene terephthalate fiber 50 denier described in Example
A net fabric was knitted using a denier 24 filament irregular bright light yarn under the same conditions as in the example.

The silk fabric was treated with semen beads, relaxed, dried, and dried under the same conditions as in the example.
Heat setting was performed, and dyeing and reduction washing were performed under the following conditions.

Dyeing machine: High pressure [1 type jet dyeing branch; Dye: 2% Miketon Polyeste
rBr'i11. 'PinkF-+>BPast (Mitsui Toatsu Chemical Co., Ltd.) Auxiliary agent: Disbur To 1
9/1 (manufactured by Meisei Chemical Industry Co., Ltd., anionic dispersant) Temperature
Separation dyeing reduction washing machine: Same temperature for dyeing x time = 80''C x 20 minutes The drying set was the same as in the example.

Comparison Example 2 Polyether type polyurethane elastic yarn 40 denier and polyamide horse fiber 5o denier 12 obtained using polytetramethylene glycol, 4-4' diphenylmethane diisocyanate, z-s propylene diamine and monoamine as a terminal capper Silk fabric was knitted using filament-shaped ply yarn under the same conditions as in Example 1, and the silk fabric was scoured, relaxed, dried, and heat set under the same conditions as in Example, and dyed under the following conditions.

Dyeing machine: Normal pressure loco type jet dyeing machine Dye: 5olar Rhodamine B:L
5% O, W, f.

(manufactured by Sumitomo Chemical Co., Ltd.) Auxiliary agent: Newbon T S' (manufactured by NICCA Chemical Co., Ltd., leveling agent) Acetic acid 0.5 ctX/1 Temperature x time: 95"CX40 minutes 50"0X10 minutes after washing , followed by fixing treatment under the following conditions.

change the bath The drying set was the same as in the example.

Examples, comparative examples 1. Regarding Comparative Example 2, when examining light fastness, water fastness, seawater stiffness, tension force during fabric stretching, and deterioration of polyurethane due to chlorinated water,
It was as shown in Table 1.

Table 1: Light fastness: J-Tech 5LOB42#71 3rd exposure method Water fastness: J-Tech 5LO846'67B method 16-hour seawater fastness: J-Tech 5LOF147/75 The tension of fabric stretching poetry Crab Instron Draw the S-S curve at 80% elongation for pattern paper 13 pine, and compare the stress at 50% elongation of the return curve Deterioration of polyurethane elastic yarn due to chlorinated water: Pool immersion 2
After 00 hours, the color of the example was clear, almost all of the dye had been exhausted, no inhibition was observed in the elastic properties of the polyurethane elastic yarn, and the yarn was also strong in chlorine resistance. On the other hand, in Comparative Example 1, there was a large amount of unexhausted dye, making it difficult to obtain a high density, and the elastic properties of the polyurethane elastic yarn decreased due to high temperature treatment.・Seawater fastness was poor, and the polyurethane elastic yarn was significantly degraded by chlorine water.

Patent applicant: Toyo Boten Co., Ltd.

Claims (4)

[Claims] (1) A knitted fabric for swimwear that is inter-knitted with polyester yarn urethane elastic yarn and ester fiber yarn that can be dyed with normal pressure cations. (2) The knitted fabric for swimming according to claim 1, wherein the knitted fabric is dyed in a dye bath of 90 to 100''C. (3) The knitted fabric for swimwear according to claim 1, which is a printed fabric in which the silk fabric is colored with atmospheric pressure saturated steam. (4) The knitted fabric for swimwear as set forth in claim 1, wherein the silk fabric is a printed fabric whose color is developed using normal pressure superheated steam at 130 to 170°C.