CN1282795C - Antimicrobial moisture retaining finishing agent for cotton fabric and antimicrobial moisture retaining finishing method - Google Patents

Abstract

The present invention discloses an antibacterial moisture-retention finishing agent for cotton fabrics, which is prepared from the following components of the proportion by weight: 1.0 to 3.0% of chitosan, 6.0 to 10.0% of citric acid, 4.0 to 6.0% of organic silicon, 0.2 to 0.6% of hypophosphite, 3.0 to 6.0% of borax, and water as the rest. The present invention also discloses an antibacterial moisture-retention finishing method for cotton fabrics, which comprises the steps that the cotton fabrics are soaked into the water solution of an antibacterial moisture-retention finishing agent for 20 to 40 minutes at a temperature of 70 to 90 DEG C, and rolled the soaked cotton fabrics, and the soaking and rolling process is repeated again; the cotton fabric obtained by soaking and rolling are pre-baked for 10 to 20 minutes at a temperature of 80 to 100 DEG C, and then baked for 4 to 10 minutes at a temperature of 110 to 130 DEG C; the baked cotton fabrics are washed in water and dried by ironing and finished, and the antibacterial moisture-retention cotton fabrics are obtained.

Description

Antibacterial and moisturizing finishing agent for cotton fabric and antibacterial and moisturizing finishing method

technical field

The invention relates to an antibacterial and moisturizing finishing agent for cotton fabrics and an antibacterial and moisturizing finishing method for cotton fabrics.

Background technique

Cotton fabric has the advantages of good air permeability, strong water absorption and no irritation to human skin, so the clothes made of cotton fabric are more and more popular. With the improvement of living standards, people's requirements for textiles are getting higher and higher. Although cotton fabric has the above-mentioned advantages, people also hope that it has more other excellent properties, such as antibacterial and moisturizing properties. At present, conventional fabrics (including cotton fabrics) moisturizing finishing mostly use chemical methods, that is, chemical reagents are used for treatment, but the effect is not very satisfactory. There are many methods for antibacterial treatment of fabrics. At present, antibacterial finishing of cotton fabrics is mostly treated with Chinese herbal medicine or physical methods. Antibacterial treatment of cotton fabric with Chinese herbal medicine will leave peculiar smell, and after antibacterial treatment of cotton fabric with physical methods, the color of cotton fabric will turn yellow, which will affect the appearance of cotton fabric.

The purpose of the present invention is to provide an antibacterial and moisturizing finishing agent for cotton fabrics in order to overcome the deficiencies of the prior art.

Another object of the present invention is to provide a method for antibacterial and moisturizing finishing of cotton fabrics by using the above-mentioned antibacterial and moisturizing finishing agent.

Contents of the invention

The invention provides an antibacterial and moisturizing finishing agent for cotton fabrics. The antibacterial and moisturizing finishing agent consists of the following components:

1.0-3.0 wt% chitosan;

6.0-10.0% by weight citric acid;

4.0-6.0% by weight silicone;

0.2-0.6% by weight hypophosphite;

3.0-6.0% by weight borax;

The balance is water; the organosilicon is an aminosilicon compound, and the hypophosphite is an alkali metal hypophosphite.

The present invention also provides a method of using the antibacterial and moisturizing finishing agent to carry out antibacterial and moisturizing finishing on cotton fabrics, comprising:

Heat the above-mentioned antibacterial and moisturizing finishing agent solution to 70-90°C, soak the cotton fabric in the solution for 20-40 minutes, roll the soaked cotton fabric, the excess rate is 80-90%, and then repeat the above soaking-rolling process;

Pre-bake the cotton fabric obtained after the soaking-rolling in step 1) at 80-100°C for 10-20 minutes, and then bake at 110-130°C for 4-10 minutes;

The cotton fabric after step 2) is washed with water, ironed and dried, and after-finishing is carried out to obtain the cotton fabric with antibacterial and moisturizing properties.

Description of drawings

Fig. 1 is a schematic flow chart of the antibacterial and moisturizing finishing method for cotton fabrics of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

The antibacterial and moisturizing properties of fabrics, especially cotton fabrics, have been paid more and more attention by people. The invention provides an antibacterial and moisturizing finishing agent for cotton fabrics. The antibacterial and moisturizing finishing agent consists of the following components:

1.0-3.0 wt% chitosan;

6.0-10.0% by weight citric acid;

4.0-6.0% by weight silicone;

0.2-0.6% by weight hypophosphite;

3.0-6.0% by weight borax;

The balance is water.

Preferably, the antibacterial moisturizing finishing agent of the present invention consists of the following components:

1.5-2.5% by weight chitosan;

7.0-8.0% by weight citric acid;

4.5-5.5% by weight silicone;

0.4-0.5% by weight of hypophosphite;

4.0-5.0% by weight borax;

The balance is water.

According to the antibacterial moisturizing finishing agent of the present invention, wherein said organosilicon is a conventional aminosilicon compound, for example, the trade name provided by Dow Corning Company is QZ-8209A and the trade name is a commercially available product of Dow Corning Silicone Oil. Amino silicon compounds are commonly used softeners in this field.

According to the antibacterial moisturizing finishing agent of the present invention, said hypophosphite is alkali metal hypophosphite, such as sodium hypophosphite and/or potassium hypophosphite. Alkali metal hypophosphites are commonly used anti-yellowing agents in the art.

In the antibacterial moisturizing finishing agent of the present invention, chitosan is a kind of colorless and tasteless macromolecular material, which can be dissolved in various solvents, and has good biological deicing property/hygroscopicity/absorptivity and antibacterial property, etc. After the cotton fabric is treated, the fabric has moisturizing and antibacterial properties and reduces wrinkles. It has no effect on the structure of the fabric, and will not affect the appearance of the fabric, that is, the color will not turn yellow. Chitosan is a commercially available product, for example, from Hubei Yufeng Bioengineering Co., Ltd.

Further, after the cotton fabric is treated with the antibacterial and moisturizing finishing agent of the present invention, the fabric does not produce peculiar smell. It can be seen from the composition of the antibacterial and moisturizing finishing agent of the present invention that it does not contain formaldehyde and other chemical reagents harmful to the human body and the environment. Therefore, the antibacterial and moisturizing finishing agent of the present invention is a green and environmentally friendly antibacterial and moisturizing finishing agent.

Through the synergistic effect of chitosan, aminosilicon compound (softening agent) and alkali metal hypophosphite (yellowing agent) etc., after the cotton fabric is finished with the antibacterial moisturizing finishing agent of the present invention, the fabric not only has ordinary In addition to the functions of the fabric, it also has excellent antibacterial and moisturizing functions. In the following examples, various properties of cotton fabrics after finishing with the antibacterial and moisturizing finishing agent of the present invention will be further described in detail.

The invention also provides a method for finishing cotton fabrics by using the antibacterial and moisturizing finishing agent of the invention. Fig. 1 is a schematic flow chart of the cotton fabric antibacterial moisturizing finishing method of the present invention. As shown in Figure 1, the method for carrying out antibacterial moisturizing finishing to cotton fabric of the present invention, comprises:

An antibacterial moisturizing finishing agent aqueous solution is provided, the antibacterial moisturizing finishing agent is composed of the following components: 1.0-3.0% by weight of chitosan, 6.0-10.0% by weight of citric acid, 4.0-6.0% by weight of organic silicon, 0.2-0.6% by weight Hypophosphite, 3.0-6.0% by weight borax, and water as the balance, heating the aqueous solution to 70-90°C, soaking the cotton fabric in the solution for 20-40 minutes, rolling the soaked cotton fabric, The excess rolling ratio is 80-90%, and then repeat the above-mentioned soaking-rolling process;

Pre-bake the cotton fabric obtained after the soaking-rolling in step 1) at 80-100°C for 10-20 minutes, and then bake at 110-130°C for 4-10 minutes;

The cotton fabric after step 2) is washed with water, ironed and dried, and after-finishing is carried out to obtain the cotton fabric with antibacterial and moisturizing properties.

According to the method of the present invention, wherein said antibacterial moisturizing finishing agent aqueous solution is composed of the following components: 1.5-2.5% by weight of chitosan, 7.0-8.0% by weight of citric acid, 4.5-5.5% by weight of organic silicon, 0.4-0.5% by weight Hypophosphite%, 4.0-5.0% by weight of borax, and the balance is water.

Example 1

18 kilograms of chitosan, 75 kilograms of citric acid, 46 kilograms of organic silicon, 5 kilograms of sodium hypophosphite and 46 kilograms of borax were added to 810 kilograms of water, heated to make them fully dissolved, and the cotton fabric was used for antibacterial and moisturizing finishing. Antibacterial moisturizing finishing agent aqueous solution.

The antibacterial and moisturizing finishing agent aqueous solution obtained above is heated to 85 ℃, and the cotton fabric is soaked in this solution for 30 minutes, and the cotton fabric after soaking is rolled, and the excess rate is 85%, and then repeat this soaking-rolling process. Pre-bake the cotton fabric obtained after soaking-rolling at 90° C. for 15 minutes, and then bake it at 120° C. for 6 minutes; wash and iron the baked cotton fabric, and perform after-treatment to obtain antibacterial and moisturizing Performance cotton fabric.

The antibacterial test of the cotton fabric after the above-mentioned finishing was carried out using the method of GB15981-1955, and the results are shown in Table 1;

The antibacterial effect of the fabric after table 1 is obtained by the inventive method bacteria Staphylococcus aureus Escherichia coli Candida albicans Bacteriostatic rate (%) 92.02 96.58 91.65

The moisturizing effect of the fabric after the finishing of table 2 obtained by the inventive method Washing times 0 10 30 40 50 Moisture regain (%) 9.35 8.12 8.02 7.96 7.93

Example 2

15 kilograms of chitosan, 70 kilograms of citric acid, 50 kilograms of organic silicon, 4 kilograms of sodium hypophosphite and 43 kilograms of borax were added to 818 kilograms of water, heated to make them fully dissolved, and the antibacterial and moisturizing finishing agent for cotton fabrics was obtained. Antibacterial moisturizing finishing agent aqueous solution.

The antibacterial and moisturizing finishing agent aqueous solution obtained above was heated to 85° C., soaked the cotton fabric in the solution for 30 minutes, rolled the soaked cotton fabric, and the rolling ratio was 85%, and then repeated the soaking-rolling once. making process. Pre-bake the cotton fabric obtained after soaking-rolling at 90° C. for 15 minutes, and then bake it at 120° C. for 6 minutes; wash and iron the baked cotton fabric, and perform after-treatment to obtain antibacterial and moisturizing Performance cotton fabric.

The antibacterial test of the cotton fabric after the above-mentioned finishing was carried out using the method of GB15981-1955, and the results are shown in Table 3;

The antibacterial effect of the fabric after table 3 is obtained by the inventive method bacteria Staphylococcus aureus Escherichia coli Candida albicans Bacteriostatic rate (%) 95.02 99.50 96.60

The moisture retention effect of the fabric after the finishing of table 4 obtained by the inventive method Washing times 0 10 30 40 50 Moisture regain (%) 9.65 9.05 8.82 8.68 8.30

Example 3

20 kilograms of chitosan, 80 kilograms of citric acid, 44 kilograms of organic silicon, 6 kilograms of sodium hypophosphite and 40 kilograms of borax were added to 810 kilograms of water, heated to make them fully dissolved, and the antibacterial and moisturizing finishing agent for cotton fabrics was obtained. Antibacterial moisturizing finishing agent aqueous solution.

The antibacterial and moisturizing finishing agent aqueous solution obtained above was heated to 85° C., soaked the cotton fabric in the solution for 30 minutes, rolled the soaked cotton fabric, and the rolling ratio was 85%, and then repeated the soaking-rolling once. making process. Pre-bake the cotton fabric obtained after soaking-rolling at 90° C. for 15 minutes, and then bake it at 120° C. for 6 minutes; wash and iron the baked cotton fabric, and perform after-treatment to obtain antibacterial and moisturizing Performance cotton fabric.

The antibacterial test of the cotton fabric after the above-mentioned finishing was carried out using the method of GB15981-1955, and the results are shown in Table 5;

The antibacterial effect of the fabric after the finishing that table 5 obtains by the inventive method bacteria Staphylococcus aureus Escherichia coli Candida albicans Bacteriostatic rate (%) 93.01 99.65 90.63

The moisturizing effect of the fabric after the finishing of table 6 obtained by the inventive method Washing times 0 10 30 40 50 Moisture regain (%) 9.45 8.35 8.12 7.88 7.73

As can be seen from the above, the cotton fabric obtained has excellent antibacterial and moisturizing properties after using the antibacterial and moisturizing finishing agent of the present invention and finishing the cotton fabric according to the method of the present invention.

Claims (4)

1. An antibacterial and moisturizing finishing agent for cotton fabrics, characterized in that the antibacterial and moisturizing finishing agent consists of the following components: 1.0-3.0 wt% chitosan; 6.0-10.0% by weight citric acid; 4.0-6.0% by weight silicone; 0.2-0.6% by weight hypophosphite; 3.0-6.0% by weight borax; The balance is water; the organosilicon is an aminosilicon compound, and the hypophosphite is an alkali metal hypophosphite. 2. The antibacterial moisturizing finishing agent according to claim 1, wherein the antibacterial moisturizing finishing agent consists of the following components: 1.5-2.5% by weight chitosan; 7.0-8.0% by weight citric acid; 4.5-5.5% by weight amino silicon compound; 0.4-0.5% by weight of alkali metal hypophosphites; 4.0-5.0% by weight borax; The balance is water. 3. A method for antibacterial and moisturizing finishing of cotton fabrics, comprising: 1) Provide an aqueous solution of an antibacterial moisturizing finishing agent, which is composed of the following components: 1.0-3.0% by weight chitosan, 6.0-10.0% by weight citric acid, 4.0-6.0% by weight organosilicon, 0.2- 0.6% by weight of hypophosphite, 3.0-6.0% by weight of borax, and the balance is water, the organosilicon is an aminosilicon compound, and the hypophosphite is an alkali metal hypophosphite; the aqueous solution is heated To 70-90°C, soak the cotton fabric in the solution for 20-40 minutes, roll the soaked cotton fabric, the excess rate is 80-90%, and then repeat the above soaking-rolling process; 2) pre-baking the cotton fabric obtained after soaking-rolling in step 1) at 80-100°C for 10-20 minutes, and then baking at 110-130°C for 4-10 minutes; 3) After the cotton fabric baked in step 2) is washed with water, ironed and dried, after-treatment is carried out to obtain a cotton fabric with antibacterial and moisturizing properties. 4. The method according to claim 3, wherein the antibacterial moisturizing finishing agent consists of the following components: 1.5-2.5% by weight of chitosan, 7.0-8.0% by weight of citric acid, 4.5-5.5% by weight of amino silicon compound, 0.4-0.5% by weight of alkali metal hypophosphite, 4.0-5.0% by weight of borax, and the balance is water.

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