JPH01260065A - Treatment of synthetic yarn - Google Patents

Abstract

PURPOSE:To provide synthetic yarn with sweat absorbing properties of durability and excellent performance to suppress multiplication of microorganisms, by pretreating synthetic yarn with an organosilicone quaternary ammonium salt and then with a specific water dispersible polyester. CONSTITUTION:Synthetic yarn is previously provided with an aqueous solution of an antimicrobial smell-preventing processing agent consisting essentially of an organosilicone quaternary ammonium salt containing an anionic surfactant, coated in a solid state and subjected to sweat absorbing agent containing a polyoxyalkylene chain to give antimicrobial smell-preventing yarn having excellent sweat absorbing properties, suppressing multiplication of microorganisms and preventing emission of unpleasant smell. This treatment is especially preferable for polyester-based synthetic yarn. A water dispersion of a copolymer of a dicarboxylic acid such as terephthalic acid, an alkylene glycol and a polyalkylene glycol is preferable as the water dispersible processing agent. The synthetic yarn is most suitable as underwears and lining of sport wears.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for treating synthetic fibers.
The purpose is to provide excellent performance in suppressing the proliferation of microorganisms that cause skin disorders.

(Prior art) Synthetic fibers, especially polyester fibers represented by polyethylene terephthalate fibers, have excellent physical properties such as excellent dimensional stability, morphological stability, wrinkle resistance, easy care properties, strength and elongation, etc. It is widely used for , clothing, industrial materials, etc.

In addition, the method for improving the properties of polyester fiber products disclosed in Japanese Patent Publication No. 46-13197 provides functionality such as hygroscopicity, sweat absorption, and antistatic properties to polyester fibers, making them suitable for use in underwear, sportswear linings, etc. Polyester fiber products are also being used in the field. However, polyester fibers endowed with such hygroscopic and sweat-absorbing properties always have a high moisture content due to their high water retention properties, and thus provide a suitable place for microorganisms to propagate.

(Problems to be Solved by the Invention) In imparting moisture and sweat absorption properties to synthetic fibers with low moisture absorption and sweat absorption properties, the present invention impairs the excellent physical properties and durable moisture absorption and sweat absorption properties of synthetic fibers. Also, there is no bad odor.
The purpose of the present invention is to provide a method for processing synthetic fibers that does not allow the proliferation of microorganisms that cause skin disorders.

(Means for Solving the Problems) The present invention provides a sweat absorbing treatment in which synthetic fibers are treated with a water-dispersible polyester finishing agent having a polyoxyalkylene chain. This is a method for treating synthetic fibers, characterized in that the fibers are treated with an aqueous solution of an antibacterial and deodorizing agent.

The synthetic fibers referred to in the present invention are synthetic fibers with low hygroscopicity, and include polyester fibers, polyamide fibers, acrylic fibers, etc. Polyester fibers are the most effective in achieving the effects of the present invention. preferable.

Polyester fibers to which the method of the present invention is applied include polyethylene terephthalate, polybutylene terephthalate,
It refers to fibers made from alkylene terephthalates such as polycyclohexane dimethyl terephthalate or copolyesters.

The copolymerized polyester referred to herein means that the components constituting the alkylene terephthalate include aliphatic dicarboxylic acids such as azelaic acid, sebacic acid, adipic acid, and dodecanedicarboxylic acid, isophthalic acid, 5-sodium sulfoisophthalic acid, and naphthalene dicarboxylic acid. , aromatic dicarboxylic acids such as diphenylethane-4,4'-dicarboxylic acid, cycloaliphatic dicarboxylic acids such as cyclohexanedicarboxylic acid, propylene glycol, 1,3-bentanediol, 1.6 - Other diol components such as aliphatic glycols such as hexanediol, neopentyl glycol, decamethylene glycol, cyclohexane dimetatool, cyclohexanediol, long chain glycols such as polyethylene glycol, polytetramethylene glycol, oxybenzoic acid, oxyethoxy It is a polyester obtained by copolymerizing a small proportion of at least one oxyacid component such as benzoic acid.

In the present invention, synthetic fibers are subjected to sweat absorption processing using a water-dispersible polyester processing agent having a polyoxyalkylene chain.

The water-dispersible polyester processing agent referred to here is an aqueous dispersion of a dicarboxylic acid such as terephthalic acid or isophthalic acid and a block copolymer such as alkylene glycol, polyalkylene glycol, or polyalkylene glycol monoether. The molar ratio of terephthalate units and isophthalate units in the polymer is 100:O to 5.
0:50, and the molar ratio of terephthalate units and isophthalate units to polyalkylene glycol units is 2
~15:1, and the molecular weight of the polyalkylene glycol is 6
00-60000.

The above alkylene glycol includes ethylene glycol,
Propylene glycol includes tetramethylene glycol, decamethylene glycol, etc., and polyalkylene glycol includes polyethylene glycol, polypropylene glycol, etc. Further, polyalkylene glycol monoethers include monomethyl ethers, monoethyl ethers, etc. of polyethylene glycol, polypropylene glycol, polypropylene glycol, and the like.

These block copolymers usually have a
0.1-5.0% (by weight), preferably 0.5-3.0
% (weight) used.

In the present invention, before the synthetic fiber is subjected to the above-mentioned sweat absorbing treatment, it is necessary that the synthetic fiber is previously treated with an aqueous solution of an antibacterial and deodorizing agent containing an organosilicone quaternary ammonium salt as a main component. . If the order of this treatment is reversed, or if the treatments are performed simultaneously in the same bath, excellent sweat absorption effects cannot be obtained.

The organosilicone quaternary ammonium salt is applied to the fibers by this treatment, and the organosilicone compound on the fibers may be either a monomer or a polymer, but preferably a polymer. The amount applied is at least 2 x 10-' mol/g, preferably at least 4 x 10-' mol/g, based on the weight of the polyester fiber. If the amount of the organosilicone compound having a quaternary ammonium base is less than 2 × 10-' mol/g, the effect of inhibiting the growth of microorganisms on the fiber is low; The organosilicone compound having the formula is a -form silicone compound. In the above formula, X is an acid anion, such as a chloride ion, bromide ion, iodide ion, formate anion, acetate anion, etc., Ri is an alkyl group of tc+ to C2°, and R' is a divalent hydrocarbon having 20 or less carbon atoms. group or alkyl group or oxygen is -C0C-1, nitrogen is R″N
- a group containing in the form of a group (R'' is H or lower alkyl),
Y is a silicon-bonded group that reacts with water to form a silanol group, such as -1SiY+tlOH→=SiOH+IIY,
Contains methoxy groups, ethoxy groups and halogen atoms. Of course, Y may be a 10H group. 0m is O or 1
is the value of Examples of preferred compounds are (CH30Ss 5iCHz CHz CHz N -
There is a compound of (CH3)z C+5Hs7C+. When hydrolyzable groups such as methoxy and ethoxy groups are added to an aqueous treatment medium, they react with water to create silanol groups, which react with active hydrogen on the fiber surface, and then the silanol groups condense and form silanol groups. The fiber surface is coated with siloxane. In this way, since the organosilicone compound is fixed on the fiber, it can permanently maintain its antibacterial effect without being moved from the fiber surface due to sweat or the like.

Organosilicone quaternary ammonium salt treatment can be carried out on synthetic fibers in any form, such as filaments, webs, or woven or knitted fabrics. For example, at the manufacturing stage of synthetic fibers,
A water diluted solution of organosilicone quaternary ammonium salt is applied using a roller or guide in the same manner as oiling, or the water diluted solution is applied to the fiber mass by spraying or dipping, followed by heating and drying. Alternatively, short synthetic fibers or long fibers may be woven or knitted, and then subjected to submerged exhaustion treatment and pad drying treatment.
The treatment conditions for the above-mentioned submerged exhaustion treatment are usually a bath ratio of 1:5 to 10.
0, normal temperature to 80°C 1 preferably 40 to 70°C 3
Finished by exhaustion treatment for 0 minutes or more and hot air drying at 80°C or more.

In the present invention, an aqueous solution of an antibacterial and deodorizing agent containing the organosilicone quaternary ammonium salt as a main component,
Preferably, an anionic surfactant of the type below is included.

general formula (However, in the formula, R is an alkyl group, and M is a hydrogen atom.

-NH4, or an alkali metal. n is 1 to 100
゜) Synthetic fibers treated with the aqueous solution of organosilicone quaternary ammonium salt containing the anionic surfactant have good wettability, and in the sweat absorption process of the next step described above, the permeability on the treated side is improved, It also leads to improved sweat absorption. The amount of anionic surfactant blended in the treatment liquid is such that the molar ratio of anionic surfactant:organosilicone quaternary ammonium salt is 0.2 to 2:1, preferably,
The amount is 0.5 to 1:■, and if the ratio of the anionic surfactant to the organosilicone quaternary ammonium salt is too small, the initial effect will not be expressed, and on the contrary, if the ratio is too large, The adhesion of the sweat absorbing agent decreases.

In the present invention, synthetic fibers are treated with an aqueous solution of an antibacterial and deodorizing agent containing the organosilicone quaternary ammonium salt as a main component, and then treated with the sweat-absorbing agent described above. treatment, pad drying treatment is applied. In the in-liquid exhaustion treatment, if the organosilicone quaternary ammonium salt aqueous solution treatment is carried out by the in-liquid exhaustion treatment, after the completion of the organosilicone quaternary ammonium salt aqueous solution treatment, the organosilicone quaternary ammonium salt aqueous solution treatment is It is also possible to add a sweat-absorbing agent to the material.

(Example) Examples of the present invention will be described below.

Example 1 Polyester multifilament type (63 denier/1
08 filament), single tricot 411
(KE-2 type 28 gauge 130 inch width manufactured by Karl Mayer) through the front reed and back reed, and the front reed structure! -37,-, and back reed &lt@'-'/,
−.

A tricot knitted fabric consisting of The obtained greige knitted fabric was raised, scoured and dyed, and then treated with an antibacterial agent 3-trimethoxylyl-propyl-dimethyl-ammonium chloride (trade name: DC-5700, Dow Corning) containing 0.16% 0'' of formula-on surfactant. company)
0.25%"' (7) Aqueous solution with bath ratio 1:50,60
"C" for 30 minutes, dehydrated and dried. Then,
Water-dispersible polyester sweat absorbing agent (product name 5R-to)
Using a treatment solution of 40 g/Q (manufactured by Takamatsu Yushi Co., Ltd.), it was processed and finished by a pad drying method with a wet pick-up of 70%, and an antibacterial, deodorizing and sweat-absorbing polyester fiber knitted fabric was obtained.

Example 2 An antibacterial, deodorizing and sweat-absorbing polyester fiber knitted fabric was obtained in exactly the same manner as in Example 1, except that the antibacterial agent aqueous solution treatment was carried out by the pad drying method.

Comparative Example 1 An antibacterial and deodorizing polyester fiber knitted fabric was obtained in exactly the same manner as in Example 1, except that the sweat absorbent treatment was not performed.

Comparative Example 2 A sweat-absorbing polyester fiber knitted fabric was obtained in exactly the same manner as in Example 1, except that the antibacterial aqueous solution treatment was not performed.

Comparative Example 3 A polyester fiber knitted fabric was obtained in exactly the same manner as in Example 1 above, except that the antibacterial agent aqueous solution treatment and the sweat absorbing agent treatment were not performed.

Comparative Example 4 A fabric was processed in exactly the same manner as in Example 1 above, except that the order of the treatment with the antibacterial agent aqueous solution and the treatment with the sweat-absorbing finishing agent was changed, and finishing and setting were carried out to obtain an antibacterial, deodorizing and sweat-absorbing polyester fiber knitted fabric. Ta.

Comparative Example 5 The triconte knitted fabric of Example 1 was treated with 3.6 g/ffi of the formula xysilyl-propyl-dimethyl-ammonium chloride and 40 g/j1! of a water-dispersible polyester sweat-absorbing finishing agent (SR-1000). The fabric was treated with the same bath treatment solution and finished with a wet pick-up (70%) to obtain an antibacterial, deodorizing, and sweat-absorbing polyester fiber knitted fabric.

The polyester fiber knitted fabrics obtained in the above Examples and Comparative Examples were used as samples to examine antibacterial properties and sweat absorption properties.

The results are shown in Table 1.

Test method Antibacterial property: Shake flask method (USA AATCCTest
According to Method 100. Test bacterium Talebsiella pneumoea) Sweat absorption: (1) Wicking test (water permeability) (
2) Bisic Method Table 1 (Effects of the Invention) As shown in Table 1, products using synthetic fibers produced by the synthetic fiber processing method of the present invention have excellent sweat absorption properties and are highly resistant to the growth of microorganisms. It effectively suppresses unpleasant odors and is ideal as a lining for underwear and sportswear.

Patent applicant: Toyobo Co., Ltd.

Claims (1)

[Scope of Claims] In sweat absorption processing in which synthetic fibers are treated with a water-dispersible polyester finishing agent having a polyoxyalkylene chain, the synthetic fibers are treated with an antibacterial and deodorizing finishing agent whose main component is an organosilicone quaternary ammonium salt. A method for treating synthetic fibers, characterized by being treated with an aqueous solution.