JPH0411076A - Production of antimicrobial and deodorizing fabric - Google Patents

Abstract

PURPOSE:To obtain an antimicrobial and deodorant fabric excellent in color fastness and washing durability by impregnating a fabric with a mixture solution containing a quaternary ammonium salt-based antimicrobial agent, a melamine derivative compound and a catalyst therefor, attaching a specific amount of the aforementioned components thereto and heat-treating the resultant fabric. CONSTITUTION:A fabric composed of synthetic fiber, semisynthetic fiber, etc., is, e.g. previously dyed and the dyed fabric is then subjected to dipping treatment in a solution prepared by mixing a quaternary ammonium salt-based antimicrobial agent with a melamine derivative compound (preferred example; hexamethylolmelamine) and a catalyst for the aforementioned derivative compound, e.g. zinc sulfate or aluminum nitrate to attach the antimicrobial agent in an amount of 0.5-5% based on the fabric weight and the melamine derivative in an amount of 0.1-1% based on the fabric weight thereto. The resultant fabric is subsequently dried and heat-treated to cure the melamine derivative compound. Thereby, the objective antimicrobial and deodorant fabric, good in hand and excellent in color fastness and washing durability is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for producing an antibacterial and deodorizing fabric that has excellent color fastness, good hand feel, and excellent washing durability.

(Prior Art) In our daily lives, we are adversely affected by microorganisms such as bacteria and mold. In particular, textile products such as clothing, bedding, and interior goods can emit bad odors due to microorganisms such as bacteria and mold that propagate using sweat, grime, dirt, etc. adhering to the fiber surface as a nutrient source.

This causes the fibers to become brittle, which has a negative impact on practical and hygienic aspects. Under these circumstances, the importance of antibacterial and deodorizing treatments for textile products has been recognized in creating comfortable clothing and a healthy living environment.

When applying antibacterial and deodorizing treatment to textile products, three requirements must be met: (1) the product must have a large hygienic effect, (2) it must be durable against washing, and (3) it must be safe for the human body.

On the other hand, conventional antibacterial and deodorizing processing methods have been tried to improve washing durability by using antibacterial agents that have great hygienic effects and are safe for the human body. There is. As a method for this purpose, a method in which an antibacterial agent having an affinity for fibers is attached to the fibers has been put into practical use.

However, this method is only effective for cotton products, but does not have a sufficient effect on washing durability for synthetic fibers, and also reduces the color fastness of both synthetic fibers for cotton products. There was also the problem of

(Problems to be Solved by the Invention) The present invention has been made in view of the current situation, and aims to provide an antibacterial and deodorizing property that has excellent color fastness, good texture, and excellent washing durability. The object of the present invention is to obtain a fiber fabric having the following characteristics.

(Means for Solving the Problems) The present invention achieves the above object and has the following nine configurations.

That is, in the present invention, a fabric is impregnated with a mixed solution of three types: a quaternary ammonium salt antibacterial agent, a melamine derivative compound, and a catalyst for the melamine derivative compound.

0.5 to 5.0% of quaternary ammonium salt antibacterial agent and 0.1% of melamine derivative compound based on the fiber weight of the fabric.
The gist of the present invention is a method for producing an antibacterial and deodorizing fabric with excellent color fastness, which is characterized by drying and heat-treating after drying and heat-treating the fabric to an extent of about 1.0%.

Below, nine aspects of the present invention will be explained in detail.

Fabrics used in the present invention include polyamide synthetic fibers such as nylon 6 and nylon 66, polyester synthetic fibers such as polyethylene terephthalate, polyacrylonitrile synthetic fibers, semi-synthetic fibers such as triacetate, and nylon 6/66. Examples include knitted woven fabrics, nonwoven fabrics, etc. made of cotton, blended fibers such as polyethylene terephthalate/cotton, and the like.

The quaternary ammonium salt antibacterial agent used in the present invention is
Examples of commonly used agents include 3-()IJmethoxysilyl)propyldimethyloctadecyl-ammonium chloride, octadecylmethyl-benzylammonium chloride, benzethonium chloride, and polyoxyethylenetrimethylammonium chloride.

p-isooctylphenoxyethoxyethyldimethylbenzylammonium chloride, dodecyldimethyl (2
-phenoxyethyl) ammonium bromide, cetyldimethylbenzylammonium chloride, and the like.

The concentration of the treatment liquid is determined so that the amount to be used is in the range of 0.5 to 5.0% based on the weight of the fabric fibers.

use. If it is less than 0.5%, there is a problem with antibacterial durability, and if it exceeds 5%.

If the antibacterial performance has reached the saturation value, it will be disadvantageous in terms of cost.

The melamine derivative compound used in the present invention is.

hexamethylolmelamine, trimethylolmelamine,
Pentamethylolmelamine, hexakismethoxymethylolmelamine, trismethoxymethylolmelamine, trismethoxymethylmelamine.

Examples include dimethylolmelamine, bismethoxymethylmethylolmelamine, and among these, hexamethylolmelamine and trimethylolmelamine are particularly preferred.

The concentration of the treatment liquid is determined so that the amount to be used is in the range of 0.1 to 1.0% based on the weight of the fabric fibers.

use. Here, if it is less than 0.1%, the effect of preventing the decline in color fastness will not be exhibited, and it will not contribute to improving the washing durability of antibacterial properties.
If it exceeds %, the texture will become hard and it will be difficult to use in practical terms.

Catalysts for melamine derivative compounds used in combination here include polyvalent metal nitrates, halides, borofluorides, etc., such as zinc sulfate, aluminum nitrate, aluminum chloride, zinc borofluoride, tartaric acid, citric acid, ammonium tartrate, etc. These include inorganic or organic acids such as ammonium citrate and ammonium chloride, their ammonium salts, and mixed catalysts of salts and free acids such as phosphoric acid/ammonium chloride, which are all catalysts for accelerating the curing of melamine derivative compounds. It is.

Although the amount used varies depending on the type of catalyst and the type of melamine derivative compound, the concentration of the treatment liquid is usually in the range of 10 to 100% of the amount of melamine derivative compound used.

In the method of the present invention, a mixed solution of the above-mentioned quaternary ammonium salt-based antibacterial agent, a melamine derivative compound, and a catalyst for melamine derivative compounds is impregnated into the above-mentioned fabric, dried,
The quaternary ammonium salt antibacterial agent and the melamine derivative compound are attached to the fabric in the above-mentioned amounts. The fabric is impregnated here using the exhaustion method.

Well-known methods that have been widely used in the past, such as a pad method and a spray method, may be used, and the present invention is not particularly limited thereto.

In the method of the present invention, heat treatment is then performed. The heat treatment is for curing the melamine derivative compound and is essential in the present invention. The temperature conditions and treatment time conditions here may be selected as appropriate; 2. The treatment temperature is usually 100
~200°C range.

The treatment time is preferably in the range of 10 to 600 seconds.

(Function) The present inventors paid attention to the ability of the well-known melamine derivative compound to form a film with excellent adhesion, and as a result of intensive study, the results showed that 2. The quaternary ammonium salt-based antibacterial agent and melamine derivative compound provide excellent washing durability with no decrease in color fastness. It has been found that a fabric with antibacterial properties and good texture can be obtained.

The antibacterial and deodorizing fabric obtained by the method of the present invention maintains the antibacterial properties, which are the advantages of quaternary ammonium salt-based antibacterial agents, due to the thickness of the melamine derivative compound coating formed on the fiber surface, and also has the disadvantages of antibacterial properties. It has an optimal thickness that prevents a certain decrease in color fastness, and also has a thickness that does not adversely affect the texture.

(Example) Hereinafter, the present invention will be explained in more detail with reference to Examples, including measurement of the performance of fabrics in Examples.

Evaluation was performed using the first method.

(1) Color fastness ■ Washing fastness JIS L-0844 (C-2 method) ■ Rubbing fastness JIS L-0849 (2) Antibacterial property (bacteria count measurement method) Test bacteria (staphylococcus, 5taphyl
ococcus aureus I F O13277
) was added to the bouillon suspension, and the mixture was heated at 37°C for 1 hour in a closed container.
The number of viable bacteria after 8 hours of culture was measured, and the difference in increase/decrease value with respect to the unprocessed sample cloth was determined from the following formula (1).

A: Number of bacteria immediately after inoculating the unprocessed sample B: Number of bacteria after culturing the unprocessed sample for 18 hours C: Number of bacteria after culturing the processed sample for 18 hours. It is necessary to confirm the activation state; if log (B/A) > 2, this test is considered valid; however, if log (B/A) ≦ 2, this test is considered invalid and should be retested. I do.

[3) Washing method JIS L-0217103 method (4) Texture handling evaluation O: Good ×: Hard Example 1 Nine-knitted fabric with three-layer double-sided structure using polyester false-twisted bulky yarn 150 denier/48 filament After knitting and scouring, 130
Staining was carried out at ℃ for 30 minutes.

[Dyeing recipe 1] Acetic acid 0.2 cc/Il The obtained dyed cloth was immersed in an aqueous solution of resin recipe 1 below and squeezed with a mangle at a squeezing rate of 100%.

It was dried at 100°C for 3 minutes.

[Resin formulation 1] Polyoxyethylene trimethyl ammonium chloride 20 g/II Subsequently, heat treatment was performed at 170° C. for 30 seconds.

An antibacterial and deodorizing fabric was obtained by the method of the present invention.

For comparison with the present invention, a comparative blank fabric (Comparative Example 1) was obtained in the same manner as in this Example except that immersion in the aqueous solution of Resin Formulation 1 was omitted.

In addition, for comparison with the present invention, the following resin formulation 2 was used instead of resin formulation 1 used in this example. Resin formulation 3. Resin formulation 4. Comparative processed fabrics (referred to as Comparative Example 2, Comparative Example 3, Comparative Example 4, and Comparative Example 5, respectively) were obtained in exactly the same manner as in this Example, except that Resin Formulation 5 was used in each case.

[Resin formulation 2] Polyoxyethylene trimethylammonium chloride F
20g/l [Resin formulation 3] Sumitex Shijin M-33g/i Sumitex Accelerator ACX
0.3g/l [Resin formulation 4] Polyoxyethylene trimethylammonium chloride F
20g/l Sumitex Shigin M-30
,5g/l Sumitex Accelerator ACX
0.05g/! [Resin formulation 5] Polyoxyethylene trimethyl ammonium chloride 20g/I! Sumitex Shigin M-31
5g/f Sumitex Axela Shichita ACX
1.5 g/It The performance of the fabrics of the present invention and Comparative Examples 1 to 5 obtained as described above was measured and evaluated, and the results are shown in Table 1.

Table 1 As is clear from Table 1, the antibacterial and deodorizing processed fabric obtained by the method of the present invention is an antibacterial and deodorizing processed fabric that has excellent color fastness and antibacterial properties, and also has a good texture. there were.

Example 2 Warp: Polyester false twisted bulky yarn 150 denier/3
0 filament, weft polyester/cotton (mix ratio 65/
A plain weave fabric was woven using the blended yarn No. 40 of No. 35), and was scoured and bleached.

Next, using the following dyeing recipe 2, dye 130% at a bath ratio of 1:30.
Dyeing was carried out at ℃ for 30 minutes to dye the polyester fiber side of the fabric.

[Dyeing prescription 2] DianixRed U-3E 1
% (Polyester thread) (Mitsubishi Kasei ■1 disperse dye)
Weight ratio Nitsuka Sunsalt RZ-8F 0.5g
/l acetic acid 0.2cc/1 Next, the cotton yarn side was dyed using dyeing recipe 3 below at a bath ratio of 1:30°, a dyeing temperature of 60°C, and a dyeing time of 45 minutes. Polyamine fixing agent manufactured by Kayaku ■ A fixing treatment was performed on the cotton yarn side at a concentration of 1 g/l, a bath ratio of 1:30, a treatment temperature of 60° C., and a treatment time of 20 minutes.

[Dyeing recipe 3] Mikacion Red GS 1% (cotton thread) (Mitsubishi Kasei ms, reactive dye) Weight ratio anhydrous sodium sulfate 10g/A soda carbonate
The dyed cloth obtained at 10 g/l was immersed in an aqueous solution of resin formulation 6 below, and the squeezing rate was 80% with a mangle.
After narrowing down.

Drying was performed at 100°C for 5 minutes.

[Resin formulation 6] Octadecylmethylbenzyl ammonium chloride
10g/J Subsequently, heat treatment was performed at 170°C for 30 seconds.

An antibacterial and deodorizing fabric was obtained by the method of the present invention.

For comparison with the present invention, a comparative blank fabric (Comparative Example 6) was obtained in the same manner as in this Example except that immersion in the aqueous solution of Resin Formulation 6 was omitted.

In addition, for comparison with the present invention, the following resin formulation 7 was used in place of resin formulation 6 used in this implementation. Resin formulation 8. Resin formulation9. Fabrics for comparison were processed in exactly the same manner as in the two examples except that resin formulation 10 was used respectively (Comparative Example 7, Comparative Example 8, Comparative Example 9, Comparative Example 10, respectively).
I got it.

[Resin formulation 7] Octadecylmethylbenzylaminium chloride
Log/l [Resin formulation 8] Sumitex Resin M-68g/A Sumitex Accelerator ACX
3g/! [Resin formulation 9] Octadecylmethylbenzylammonium chloride F
10g/j! Sumitex Resin M-6
0.8g/J Sumitex Accelerator ACX
0.3g/l [Resin formulation 10] Octadecylmethy] L benzyl ammonium chloride LOg/l Sumitex Resin M-62
0g/l Sumitex Accela b-ta ACX
The performance of the fabrics of the present invention and Comparative Examples 6 to 10 obtained as described above was measured and evaluated, and the results are shown in Table 2.

As is clear from Table 2, the antibacterial and deodorizing processed fabric obtained by the method of the present invention is an antibacterial and deodorizing processed fabric that has excellent color fastness and antibacterial properties, and also has a good texture. Ta.

(Effects of the Invention) The antibacterial and deodorizing treated fabric obtained by the method of the present invention has excellent color fastness, good hand feel, and antibacterial and deodorizing properties with excellent washing durability.

The antibacterial and deodorizing treated fabric of the present invention having such excellent performance becomes a material suitable for clothing, bedding, interior goods, and the like.

Patent l! :8 applicants Unitika Co., Ltd.

Claims (1)

[Claims] (1) A fabric is impregnated with a mixed solution of three types of a quaternary ammonium salt antibacterial agent, a melamine derivative compound, and a catalyst for melamine derivative compounds, and the quaternary ammonium salt antibacterial agent is added to the fiber weight of the fabric. A method for producing an antibacterial and deodorizing fabric with excellent color fastness, characterized by depositing 0.5 to 5.0% and 0.1 to 1.0% of a melamine derivative compound, followed by drying and heat treatment.