JPH09268472A - Cloth of dirt resistant polyester-based fiber and production of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cloth of a dirt resistant polyester based fiber having a durable preventing function for darkening by fixing a specific block copolymer, a modified organosilicate and an aminoplast resin to a cloth of a polyester fiber. SOLUTION: This cloth of a dirt resistant polyester-based fiber is obtained by immersing a cloth of a polyester fiber into an aqueous dispersion liquid containing a block copolymer obtained by copolymerizing a polyalkylene glycol such as a polyethylene glycol and a polypropylene glycol with an aromatic dicarboxylic acid such as terephthalic acid, isophthalic acid and their alkyl esters and an alkylene glycol such as ethylene glycol and propylene glycol in (1-31):1:(2-3) molar ratio, heat-treating to impart 0.02-5wt.% copolymer to the cloth, then immersing the cloth into a treating liquid containing a modified organosilicate and an aminoplast resin such as a melamine resin to adhere both materials by 0.01-5wt.% each, and dry or wet heat-treating the cloth for imparting the dirt resistance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antifouling polyester fiber fabric having wash durability and anti-darkening stain performance, and a method for producing the same.

[0002]

2. Description of the Related Art Hitherto, many so-called antifouling synthetic fiber fabrics have been proposed. For example, Japanese Patent Publication No. 64-63
As described in Japanese Patent Publication No. 10, a raw yarn oil agent containing a fluorine compound is attached to a synthetic fiber, or Japanese Patent Publication No. 64-27.
As disclosed in Japanese Patent Publication No. 08-08, a method of imparting water-repellent and oil-repelling property by attaching a fluorine-based resin to a textile product, and a method of preventing the attachment of dirt are disclosed in Japanese Patent Publication No. 63-3078. A method of providing antifouling property by using a resin and a hydrophilic polymer in combination is known. However, none of them has a great effect on preventing darkening stains and has satisfactory washing durability.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide an antifouling polyester fiber cloth having wash durability and anti-darkening stain resistance, and a method for producing the same.

[0004]

The antifouling polyester fiber cloth of the present invention has the following constitution in order to solve the above problems.

That is, there is provided an antifouling polyester fiber cloth comprising a polyalkylene glycol, a block copolymer of an aromatic dicarboxylic acid and an alkylene glycol, a modified organosilicate, and an aminoplast resin.

Further, the method for producing an antifouling polyester fiber cloth of the present invention has the following constitution in order to solve the above problems.

That is, after heat treatment in an aqueous dispersion containing a block copolymer of polyalkylene glycol, aromatic dicarboxylic acid and alkylene glycol, a treatment liquid containing modified organosilicate and aminoplast resin is applied and heat treated. And a method for producing an antifouling polyester fiber cloth.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.

The polyester fiber cloth according to the present invention refers to a woven fabric, a knitted fabric, a non-woven fabric, etc. containing polyethylene terephthalate, polybutylene terephthalate or a polyester fiber of a copolymer containing these as a main component,
Synthetic fibers other than polyester fibers, regenerated fibers or natural fibers may be mixed and mixed and included.

The polyalkylene glycol used in the present invention is one having a main chain of-(CHO)-(n = 2-4) in the molecule, and has a molecular weight of 300-4000.
It is preferably in the range of 0, and more preferably 1000.
The range is from 10,000 to 10,000. For example, polyethylene glycol, polypropylene glycol or block polymers thereof can be used. If the molecular weight is less than 300, the durability tends to be insufficient, and if the molecular weight exceeds 40,000, the dispersibility tends to decrease.

The aromatic dicarboxylic acid means, for example, terephthalic acid or at least one of lower alkyl ester of terephthalic acid and isophthalic acid, or lower alkyl ester of isophthalic acid.

The alkylene glycol is represented by the following general formula [I], and for example, ethylene glycol, propylene glycol, butylene glycol and the like can be used.

[0013]

Embedded image (N = 2 to 4) In the block copolymer of polyalkylene glycol, aromatic dicarboxylic acid and alkylene glycol, the block copolymerization molar ratio of 1 to 3: 1: 2 to 3 is the antifouling property. It is preferable from the viewpoint. The block copolymer is preferably used by dispersing it in water using a nonionic or anionic surfactant. The treatment temperature in the aqueous dispersion containing the block copolymer is preferably in the range of 80 to 140 ° C. Processing time of about 3 minutes to 30 minutes is usually sufficient. The treatment with the block copolymer can be performed simultaneously with the dyeing. That is, it is possible to use a dye and the block copolymer in combination and to treat the polyester fiber under ordinary dyeing conditions. Prior to the treatment with the block copolymer, it is preferable to reduce the weight of the polyester with an alkaline agent such as caustic soda in order to soften the texture of the dough.

The block copolymer is preferably added in an amount of 0.02 to 5% by weight, based on the weight of the synthetic fiber cloth.
More preferably, 0.1 to 3% by weight is applied. The heat treatment of the polyester fiber cloth in the aqueous dispersion containing the copolymer needs to be performed before applying the treatment liquid containing the modified organosilicate and the aminoplast resin. If a polyester fiber fabric is heat-treated in an aqueous dispersion containing a copolymer after a treatment liquid containing a modified organosilicate and an aminoplast resin is applied, there is a problem that the darkening stain prevention performance cannot be exhibited. .

The amount of the block copolymer added is 0.
If it is less than 02% by weight, the dark stain resistance is not sufficiently exhibited, and if it is more than 5% by weight, the texture of the fabric tends to be hard and the dyeing fastness tends to be low.

The modified organosilicate used in the present invention is represented by the following general formula [II].

[0017]

Embedded image (R: CH _3, alkyl group represents a such C ₂ H ₅₎ modified organosilicate, compared polyester fiber fabric weight is preferably is 0.01 to 5 wt% grant, 0.1-3 % Is more preferable.
If it is less than 0.01% by weight, the dark stain prevention performance tends to be insufficient, and if it is more than 5% by weight, the texture tends to be impaired.

Examples of the aminoplast resin used in the present invention include melamine resins such as trimethylolmelamine and hexamethylolmelamine, dimethylolurea, dimethyloldihydroxyethyleneurea, dimethyldihydroxyethyleneurea, dimethyloldimethoxyethyleneurea and dimethylolbutyleneurea. It is possible to use urea resins such as dimethylol propylene urea and dimethylol 5 hydroxypropyl urea, and uronic resins such as dimethyloluron. The aminoplast resin is preferably added in an amount of 0.01 to 5% by weight based on the weight of the polyester fiber cloth. If it is less than 0.01% by weight, the washing durability of dark stain prevention performance tends to be insufficient, and if it is more than 5% by weight, the texture tends to be coarse and hard.

As a method for applying the treatment liquid containing the modified organosilicate and the aminoplast resin to the polyester fiber cloth, padding, dipping, spraying, coating or the like can be adopted.
The heat treatment in the present invention means dry heat treatment or wet heat treatment. The moist heat treatment includes in-bath treatment and steam treatment. As the steam treatment, a normal pressure saturated steam treatment, a superheated steam treatment, a high pressure steam treatment and the like can be adopted. The temperature of dry heat treatment or wet heat treatment is 100 to 21.
About 0 ° C is preferable. When the heat treatment temperature is 100 ° C or lower, the washing durability tends to be insufficient, while
If the temperature exceeds 0 ° C, the fibers tend to be yellowed and brittle.

Hereinafter, the present invention will be described in more detail with reference to Examples. In addition, the performance evaluation in an Example was performed by the following method.

[Black stain prevention performance] Step 1: 0.2 g of a pollutant A dried in a polyethylene bag (20 l) at 100 ° C. for 2 hours, vertical 10 cm, horizontal 15
cm sample and a rubber tube for ICI pilling. Inflate the bag with air at 20 ° C. × 65% RH and stop with a rubber band (about 10 l).

Step 2: ICI the polyethylene bag of step 1
Put in the box of the tester and rotate for 1 hour. Take out a physical sample.

Step 3: Treated sample 1 under standard wash conditions
Wash twice. Repeat steps 1 to 3 two more times.

Step 4: The L value of the sample in which the contaminants are attached and washed three times as described above and the untreated sample are measured with a colorimeter, and the ΔL value is calculated.

[Pollutant A] Drug name Composition (wt%) Standard clay 55 Shigaraki clay ground in a mortar Portland cement 17 JIS R5210 Silicon dioxide 17 JIS K8885 Ferric oxide 0.5 Reagent CP grade n-decane 8.75 Reagent EP grade carbon black 1.75 Tamagawa carbon black [Standard washing conditions] Washing: Zab 2g / l, 4 ° C x 5 minutes Rinse: room temperature water, overflow 2 minutes x 2 times Drying: tumbler 30 minutes The fabric in the examples is a polyester woven fabric (# 1413 manufactured by Toray Industries Inc., vertical thread 75D-36fil horizontal thread 75D).
-72 fil) was used.

The above dough was subjected to desizing and scouring by a conventional method, set to dry heat, and then subjected to a test.

[Example 1] The test fabric contains 7% owf of polyalkylene glycol, aromatic dicarboxylic acid and alkylene glycol block copolymer TO-SR-1 (manufactured by Takamatsu Yushi Co., Ltd., solid content 10%). PH with acetic acid
The mixture was added to the treatment liquid adjusted to 4.5, treated at 130 ° C. for 15 minutes, washed with water and dried. After soaking the obtained dough in the treatment liquid of the following composition, squeezing with a mangle (pickup 60%), 1
After dry heat treatment at 20 ℃ × 3 minutes, 190 ℃ × with a pin tenter
It was subjected to a dry heat treatment for 1 minute and provided for evaluation. The results are shown in Table 1.

Modified organosilicate: H-3669-
2NI (manufactured by Takamatsu Yushi Co., Ltd.) 30 g / l Melamine resin: Sumitex resin MK (manufactured by Sumitomo Chemical Co., Ltd.) 3 g / l Catalyst: Catalyst RC-W (manufactured by Kyokushin Kasei Co., Ltd.) 2 g
/ L

[Table 1] [Example 2] The test fabric contains 3% owf of polyalkylene glycol, aromatic dicarboxylic acid and alkylene glycol block copolymer TO-SR-1 (manufactured by Takamatsu Yushi Co., Ltd., solid content 10%), and PH4 with acetic acid. The mixture was added to the treatment solution adjusted to 0.5 and treated at 130 ° C. for 15 minutes. The obtained dough was dipped in a treatment liquid having the following composition, squeezed with a mangle (pickup 60%), steamed at 105 ° C. for 3 minutes, and dried at 120 ° C. for 3 minutes, and subjected to evaluation. The results are shown in Table 1.

Modified organosilicate: H-3669-
2NI (manufactured by Takamatsu Oil & Fat Co., Ltd.) 30 g / l Melamine resin: Sumitex Resin M-3 (manufactured by Sumitomo Chemical Co., Ltd.) 30 g / l Catalyst: Ammonium persulfate 2 g / l [Example 3] Polyalkylene glycol , A block copolymer of aromatic dicarboxylic acid and alkylene glycol TO-SR-1 (manufactured by Takamatsu Yushi Co., Ltd., solid content 10%) containing 10% owf, added to a treatment liquid adjusted to pH 4.5 with acetic acid and put at 130 ° C. × 15 minutes treatment. The obtained fabric was dipped in a treatment liquid having the following composition, squeezed with a mangle (pickup 60%), subjected to dry heat treatment at 120 ° C. for 3 minutes, and then subjected to dry heat treatment at 180 ° C. for 1 minute with a pin tenter for evaluation. The results are shown in Table 1.

Modified organosilicate: H-3669-
2NI (manufactured by Takamatsu Yushi Co., Ltd.) 10 g / l Urea resin: Sumitex resin (manufactured by Sumitomo Chemical Co., Ltd.) 30 g / l NF-500K Catalyst: Sumitex ACC. ACX 2 g / l [Comparative Example 1] The same as in Example 1 was used for TO-SR-
It processed with 1 and used for evaluation. The results are shown in Table 1.

[Comparative Example 2] The test material was treated with TO-SR-1 in the same manner as in Example 1. After dipping the obtained dough in the treatment liquid of the following composition, squeeze it with a mangle (pickup 60
%), After dry heat treatment at 120 ° C x 3 minutes, 1 with a pin tenter
It was subjected to dry heat treatment at 90 ° C. for 1 minute and provided for evaluation. The results are shown in Table 1.

Melamine resin: Sumitex resin MK
(Sumitomo Chemical Co., Ltd.) 3 g / l Catalyst: Catalyst RC-W (Kyokin Chemical Co., Ltd.) 2 g
/ L [Comparative Example 3] The sample fabric was TO-SR-
Processed in 1. After soaking the obtained dough in the treatment liquid of the following composition, squeezing with a mangle (pickup 60%), 120 ° C
After dry heat treatment at × 3 minutes, a dry heat treatment was performed at 190 ° C. for 1 minute with a pin tenter, and the resultant was evaluated. The results are shown in Table 1.

Modified organosilicate: H-3669-
2NI (manufactured by Takamatsu Yushi Co., Ltd.) 30 g / l [Comparative Example 4] After dipping the test material in the treatment liquid having the following composition, squeezing with a mangle (pickup 60%), dry heat treatment at 120 ° C for 3 minutes, and then with a pin tenter It was subjected to dry heat treatment at 190 ° C. for 1 minute and provided for evaluation. The results are shown in Table 1.

Modified organosilicate: H-3669-
2NI (manufactured by Takamatsu Oil & Fat Co., Ltd.) 30 g / l Melamine resin: Sumitex Resin MK (manufactured by Sumitomo Chemical Co., Ltd.) 3 g / l Crosslinking agent: Catalyst RC-W (manufactured by Kyokushin Kasei Co., Ltd.) 2
g / l

[0035]

EFFECTS OF THE INVENTION According to the present invention, an antifouling polyester fiber cloth having a durable performance for preventing darkening stains can be obtained. The cloth is also effective in improving water absorption and antistatic properties.

Claims (2)

[Claims] 1. An antifouling polyester fiber cloth comprising a block copolymer of polyalkylene glycol, an aromatic dicarboxylic acid and an alkylene glycol, a modified organosilicate, and an aminoplast resin attached thereto. 2. After heat treatment in an aqueous dispersion containing a block copolymer of polyalkylene glycol, aromatic dicarboxylic acid and alkylene glycol, a treatment liquid containing modified organosilicate and aminoplast resin is applied and heat treated. A method for producing an antifouling polyester-based fiber cloth.