JPS61207673A - Surface modification of synthetic yarn - 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] [Field of Industrial Application] The present invention relates to a method for surface modification of synthetic fibers, and more specifically, the present invention relates to a method for surface modification of synthetic fibers. , relates to a method for surface modification of synthetic fibers that have good sweat absorption and antistatic properties.

[Conventional technology]

Conventionally, various types of polyester copolymers are attached to synthetic fibers to create a coating that mainly targets oil-based stains.
G&Kanbong - Wf Keya 1 Raijo Lekan is supervised by British Patent No. 10884984, U.S. Patent No. 3959230, U.S. Patent No. 4013627, Japanese Patent Application Laid-open No. 57-5983,
It is known from Japanese Patent Publication No. 53-46960, Japanese Patent Publication No. 46-28237, Japanese Patent Publication No. 47-8795, and Japanese Patent Publication No. 47-8796.

However, although these conventional methods are effective in removing oily stains and absorbing sweat,
After dyeing, the product has the disadvantage that its water fastness and washing fastness are lower than that of the unprocessed product.

[Problem that the invention seeks to solve]

The present invention provides a method for surface modification of synthetic fibers, which mainly targets oil-based stains with little reduction in synthetic fiber entrapment fastness, has good soil release properties and sweat absorption properties, and has excellent antistatic properties.

[Means for Solving the Problems] One aspect of the present invention is to provide a synthetic fiber surface which is characterized in that a polyester copolymer having an ether bond and a phosphoric acid ester surfactant are added to the synthetic fiber and then heat treated. It's in the modification method.

The synthetic fibers used in the present invention refer to hydrophobic synthetic fibers such as polyvarnish FK, nylon, acrylic, and acetate.

In addition, the hydrophilic polyester copolymer having ether-bonded metal in the present invention is a copolymerized polyester of alkylene glycol, polyalkylene glycol, etc., and aliphatic, aromatic, alicyclic dicarboxylic acid, or sulfodicarboxylic acid. be.

The amount of such hydrophilic polyester copolymer used is 0.1
It is desirable to treat the fibers in an amount of ~5% by weight.

In the present invention, it is essential to use a phosphate ester surfactant together with the hydrophilic polyester copolymer, and the phosphate ester surfactant may be a monovalent metal such as the following general formula % K. ) One or more of the compounds represented by these are used.

The amount of the phosphate ester surfactant used is 0.1 to 1 o y/l to the treatment liquid containing the hydrophilic polyester.

The treatment method involves soaking synthetic fibers in a treatment solution containing a hydrophilic polyester copolymer and a phosphate ester surfactant.
After applying by known means such as padding, 60 to 140℃
The synthetic fibers are adhered to the synthetic fibers by a method of heat treatment at a temperature of 60 to 140° C., a method of immersion treatment in a heat treatment liquid of 60 to 140° C., and a method of performing application and heat treatment at the same time.

〔Example〕

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

Each evaluation method in the examples was performed using the following method.

(1) Water absorption: Drop 0.05 cc of ion-exchanged water onto the sample and measure the time until it is completely absorbed.

(2) Oil-based stain removal property: After adhering oil and carbon to the sample, home washing (JIS L-0217-103) is performed, and removal property is judged by contamination gray scale according to Japan Chemical Fibers Association standard CTCFA TM-104 ( 1982)].

(3) Water fastness; JIS-L-0846-197
6 Water fastness test method B Measured for 16 hours.

The attached cloth is made of cotton and silk.

(4) Washing fastness; JIS L-0844-1
Measured using 973 washing fastness test method A-2.

The attached cloth is made of cotton and silk.

(5) Frictional charging voltage; JIS L-1094-198
Using cotton cloth as a friction cloth in the 0B method friction charge voltage measurement method,
Measured at 20°C x 40%RH.

(6) Washing resistance; JIS-0217-103 was tested 20 times.

In addition, in the examples, parts mean parts by weight.

Example 1 A double knit using processed yarn of polyester fibers 50d/48f was refined by a conventional method, and after setting at 180°C for 30 seconds, Miketon polyester rubin GG-8F [disperse dye manufactured by Mitsui Toatsu Co., Ltd.] 3 , O%owf (weight of fiber)
, Disper VG [Dispersant manufactured by Kaisei Kagaku Co., Ltd.] 0.
5 P/l, acetic acid (45% by weight) 1 co/l and dimethyl terephthalate 500 parts (100 mol%), ethylene glycol 400 parts (260 mol%), molecular weight 3
10% owf of a polyester copolymer dispersion (resin solid content 15%) obtained from 700 parts (9.3 mol%) of polyethylene glycol No. 000 and 2 P/l of a phosphate ester surfactant were added. 130 at a bath ratio of 1:30 in the processing solution
℃ for 60 minutes, washed with water, and then reductively washed at 70℃ for 10 minutes with a solution of Monogen 170 (surfactant manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) IP/l, hydrosulfide 1φ, and soda ash 1/l. After drying, it was set at 160°C for 30 seconds. The evaluation results of the treated double knit are shown in Table 1 below.

As a result, the polyester copolymer alone has excellent oily stain removal properties and water absorption, but its water fastness and washing fastness deteriorate, whereas the present invention has excellent oily stain removal properties and water absorption properties. An excellent product was obtained with little loss of fastness and also good antistatic properties.

In addition, Comparative Example 1 does not contain a phosphate ester surfactant;
In Comparative Example 2, neither the polyester copolymer nor the phosphate ester surfactant were added.

Example 2 A filament-processed yarn twill fabric obtained from polyester fiber semidull 150 d/48 f was desized and refined in a conventional manner, and after setting at 180° C. for 30 seconds, dyes shown in Table 2, disper vco, s1/ l, acetic acid (45 wt%)
1φ, 135°C at a bath ratio of 1:30 in a treatment solution containing 2% owf of a polyester copolymer obtained by the method described in the reference example below and 2 P/l of a phosphate ester surfactant.
After treatment with water for 60 minutes, reduction cleaning, drying, and setting were performed in the same manner as in Example 1.

The evaluation results of the treated twill fabric are shown in Table 2 below.

As a result, polyester copolymer alone has excellent water absorption, but its water fastness and washing fastness deteriorate.
According to the present invention, a product with excellent water absorption and little loss of fastness was obtained.

Table 2 In addition, Comparative Example 1 does not contain phosphate ester surfactant;
In Comparative Example 2, neither the polyester copolymer nor the phosphate ester surfactant was added.

Reference example (manufacture of polyester copolymer) (1) 38
．． 4 P (13 mol %) dimethyl sodium sulfoisophthalate, 133.9 F (69 mol %) dimethyl terephthalate, 30.87' (18 mol %) dimethyl adipate, 124 Jl (200 mol %)
) of ethylene glycol, 0.57' of antimony oxide, 0.5 t of zinc acetate and 1.0 t of IJ acetate, (2) the mixture was stirred and heated at 155°C, and then methanol was maintained at 150 to 180°C for about 3 hours while distilling.

(3) Next, the temperature was raised to 220℃, 0.5W,
Reduce pressure to HP, distill ethylene glycol,
A product of 0P (100 mol%) was obtained.

Next, the temperature was raised to 250°C, the pressure was brought to atmospheric pressure, and the pressure was maintained for 15 hours, and the reaction product was poured out and cooled.

The obtained polyester copolymer has a glass transition temperature of 5
At 3°C, the polymer showed no detectable crystallinity by birefringence and was soluble in hot water.

〔Effect of the invention〕

According to the present invention, by attaching a hydrophilic polyester copolymer and a phosphate ester surfactant to synthetic fibers, there is little loss in fastness, good oil stain removal properties, good water absorption, and antistatic properties. This makes it possible to obtain synthetic fibers with excellent properties.

Claims (1)

[Claims] A method for surface modification of synthetic fibers, which comprises applying a hydrophilic polyester copolymer having an ether-bonded metal and a phosphate ester surfactant to synthetic fibers, and heat-treating the synthetic fibers.