CN117051588A - Crease-resistant skin-care pure cotton fabric and preparation method thereof - Google Patents

Abstract

The invention belongs to the technical field of pure cotton fiber manufacturing, and specifically relates to an anti-wrinkle and skin-care pure cotton fabric and a preparation method thereof. The fabric includes pure cotton fabric, skin care ingredients, cross-linking agent, non-iron resin, fiber protection agent and softener. The pure cotton fabric provided by the invention has strong firmness to the skin care ingredients, is not easy to lose the skin care ingredients, is washable, has long-lasting skin care ingredients, and is easy to wrinkle without ironing. Textiles based on this anti-wrinkle skin care pure cotton fabric can fully contact the human body during use, promote skin absorption and metabolism, are not easy to deform, and are easy to care for, solving the daily use and maintenance needs of users, and providing A healthier and more comfortable lifestyle.

Description

Anti-wrinkle skin care pure cotton fabric and preparation method thereof

Technical field

The invention belongs to the technical field of pure cotton fiber manufacturing, and specifically relates to an anti-wrinkle and skin-care pure cotton fabric and a preparation method thereof.

Background technique

Pure cotton fabric is loved by people for its natural comfort. It not only has very good hygroscopicity, so that the clothes can remain soft and comfortable when in contact with the skin, but also has good warmth retention and does not irritate the skin. However, with the improvement of people's living standards, the pursuit of textiles has become more diversified. More and more consumers are pursuing easy care and health. In particular, the functionality and comfort requirements of textile products are gradually increasing, such as fabrics. skin care function.

Hyaluronic acid, also known as hyaluronic acid, has a molecular formula of (C ₁₄ H ₂₁ NO ₁₁ ) _n and is a disaccharide unit glycosaminoglycan composed of D-glucuronic acid and N-acetylglucosamine. In 1934, Meyer and others, professor of ophthalmology at Columbia University, first isolated this substance from the vitreous body of bovine eyes. With its unique molecular structure and physical and chemical properties, hyaluronic acid displays a variety of important physiological functions in the body, such as lubricating joints, regulating the permeability of blood vessel walls, and improving skin growth conditions. It can provide a superior external environment for the synthesis of dermal collagen and elastic fibers, strengthen the supply of nutrients, and achieve skin care, beauty, and anti-aging effects. Used in textile processing, it can give the fabric a unique skin protection effect, keep the skin moist, smooth, delicate, tender and elastic, and has anti-wrinkle, anti-wrinkle, beauty and health care and restoration of skin physiological functions.

Patent application CN 111021061 A, published on October 11, 2022. Disclosed is a post-finishing process for hyaluronic acid silk fabrics, which includes the following steps: (1) drying and rolling the silk fabrics, and then padding the working fluid; the working fluid includes a washable finishing agent, a hyaluronic acid finishing agent and Water, the bath ratio of wash-resistant finishing agent is 18-25g/L, and the bath ratio of hyaluronic acid finishing agent is 36-75g/L; the wash-resistant finishing agent and hyaluronic acid finishing agent are added according to the mass ratio of 1:2-3: (2) The padded silk fabric is dried at 120-130℃ and tentered to shape. This invention improves the washability, hygroscopicity and moisture release performance of silk fabrics through post-finishing processes. However, the content of hyaluronic acid in the fabrics drops significantly after repeated washing, and the skin care properties become worse. It cannot meet the public's requirements for skin care fabrics.

In summary, the existing technology can solve the problem of anti-wrinkle and skin care of fabrics, but the anti-wrinkle and skin care effect drops significantly after repeated washing, and the fabric is difficult to care for, so it cannot meet the public's demand for anti-wrinkle and skin care fabrics.

Contents of the invention

The purpose of the present invention is to provide an anti-wrinkle skin care pure cotton fabric that is washable, has long-lasting skin care ingredients, and is safe and non-irritating.

Another object of the present invention is to provide a method for preparing anti-wrinkle and skin-care pure cotton fabrics, which has a simple process, low production cost and is suitable for industrial production.

The technical solutions adopted by the present invention are:

The anti-wrinkle skin care pure cotton fabric includes pure cotton fabric, skin care ingredients, non-iron resin, cross-linking agent, fiber protection agent and softener;

The skin care ingredient is macromolecular hyaluronic acid, with a molecular weight of 15,000-30,000 daltons;

The cross-linking agent is polyurethane Raycare SPU-N.

The no-iron resin is self-crosslinking formaldehyde-free no-iron resin Raycare CR-ZFK.

The fiber protective agent is fiber protective agent Raycare SF-P.

The softener is softener Raycare SMH-10.

The preparation method of the anti-wrinkle skin care fabric includes the following steps:

(1) Prepare finishing liquid from ingredients other than pure cotton fabrics;

(2) Use finishing liquid to finish pure cotton fabrics in a two-dip and two-padding method;

(3) The fabric prepared in step (2) is tentered, heat-set, dried, and baked to obtain an anti-wrinkle and skin-care pure cotton fabric.

The components of the finishing liquid in the step (1) are:

Macromolecule hyaluronic acid: 3-10g/L;

Polyurethane cross-linking agent Raycare SPU-N: 5-20g/L;

Self-crosslinking formaldehyde-free resin Raycare CR-ZFK: 60-100g/L;

Fiber protectant Raycare SF-P: 10-40g/L;

Softener Raycare SMH-10: 10-40g/L.

The liquid-carrying rate of the two-dipping and two-rolling in step (2) is 60-80%.

The drying temperature in step (3) is: 120-140°C, and the drying time is: 30-60s; the preferred drying temperature is 130°C, and the drying time is 40s.

The baking temperature in step (3) is 130-180°C, and the baking time is 30-180s; the preferred baking temperature is 150°C, and the baking time is 180s.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. In the presence of a cross-linking agent and a no-iron resin, the pure cotton fabric prepared by the present invention causes the skin care ingredients (macromolecule hyaluronic acid) and the cotton fiber fabric to form a very strong chemical cross-linking and film-forming structure, which is resistant to water washing and has a long-lasting effect.

2. The pure cotton fabric prepared by the present invention has strong firmness to the skin care ingredients, is not easy to lose the skin care ingredients, is washable, has long-lasting skin care ingredients, and is easy to wrinkle without ironing. Textiles based on this anti-wrinkle skin care pure cotton fabric can more fully contact the human body during use, promote skin absorption and metabolism, are not easy to deform, and are easy to care for, solving users' daily use and maintenance needs, and providing more Healthy and comfortable lifestyle.

3. The preparation method of the present invention has simple process and low production cost, and is suitable for industrial production.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments.

The raw materials used in the examples are all commercially available materials unless otherwise specified.

Polyurethane cross-linking agent Raycare SPU-N is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.;

Self-crosslinking formaldehyde-free resin Raycare CR-ZFK is a commercial product of Zibo Lurui Fine Chemical Co., Ltd.;

Fiber protective agent Raycare SF-P is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.;

Softener Raycare SMH-10 is a commercially available product of Zibo Lurui Fine Chemical Co., Ltd.;

Macromolecule hyaluronic acid Bloomage Biotechnology Co., Ltd.

Test Methods:

Test method for no-iron grade: AATCC 124-2018 "Determination of appearance smoothness of fabrics after multiple home launderings".

Hyaluronic acid content testing method: UV-carbazole method test

1. Principle: Hyaluronic acid contains equal molar ratios of N-acetylglucosamine and glucuronic acid. Using borax as a catalyst to acidolyze sodium hyaluronate with sulfuric acid, the glucuronic acid can be separated. Glucuronic acid reacts with carbazole to form an organic complex, which displays a unique purple color, and its absorbance is proportional to the concentration of glucuronic acid. The content of sodium hyaluronate can be determined by the glucuronic acid content.

Structural formula:

2. Reagents and solutions

2.1 0.025mol/L borax sulfuric acid solution: Weigh 4.77g borax and dissolve it in 500mL concentrated sulfuric acid (high-grade sulfuric acid), and store it in a sealed glass bottle for later use.

2.2 0.1% carbazole test solution: Weigh 0.125g carbazole and dissolve it in 100mL absolute ethanol, place it in a brown bottle, and store it in a refrigerator at 4°C to 8°C. The shelf life is 2 months.

2.3 Standard glucuronic acid solution: Accurately weigh 0.1g glucuronic acid standard, place it in a 100mL volumetric flask, add water to dissolve and adjust to volume, shake well and set aside.

3. Instruments and equipment: vortex mixer, spectrophotometer.

4. Drawing of standard curve:

Accurately weigh the standard glucuronic acid standards and configure them into standard solutions with concentrations of 10ppm, 20ppm, 30ppm, 40ppm, and 50ppm. Take 6 test tubes and add 1 mL each of standard solution and diluted solvent of different concentrations, then add 5 mL of borax sulfuric acid solution respectively, and place in an ice bath to cool to about 4°C. Shake gently first, then mix thoroughly with a vortex mixer. Place the test tube in boiling water and heat it for 10 minutes, then take it out and place it in running water to cool to room temperature. Add 0.2 mL of carbazole test solution to the cooled test tube and mix thoroughly, heat in a boiling water bath for another 15 minutes, and then cool to room temperature. Use a disposable cuvette to measure the absorbance at 530nm, and plot the absorbance value against the concentration value to draw a standard curve.

5. Analysis steps

5.1. Dilute the sample to a concentration within the curve according to the hyaluronic acid content in the sample.

5.2 Take 1 mL of sample solution, add 5 mL of borax sulfuric acid solution, and place in an ice bath to cool to about 4°C. Shake gently first, then mix thoroughly with a vortex mixer. Place the test tube in boiling water and heat it for 10 minutes, then take it out and place it in running water to cool to room temperature. Add 0.2 mL of carbazole test solution into the cooled test tube and mix evenly, heat in a boiling water bath for another 15 minutes, and then cool to room temperature. Measure the absorbance at 530nm using a disposable cuvette

6. Calculate CXAX2.07

where w represents the content of hyaluronic acid in the sample

C represents the concentration read by the spectrophotometer

A represents the multiple of sample dilution

2.07 The mass of sodium hyaluronate repeating disaccharide units (401.3)/the mass of glucuronic acid (194.1).

Example 1

The specific steps for the preparation method of the anti-wrinkle skin care pure cotton fabric are as follows:

(1) Configuration finishing liquid: hyaluronic acid: 3g/L, polyurethane cross-linking agent Raycare SPU-N: 10g/L, self-crosslinking formaldehyde-free resin Raycare CR-ZFK: 80g/L, fiber protective agent Raycare SF-P: 10g /L, softener Raycare SMH-40: 20g/L;

(2) Use the finishing liquid in step (1) to finish the pure cotton fabric in a two-dip and two-padding method (liquid entrainment rate 80%);

(3) Dry the fabric produced in step (2) at 140°C for 30 seconds;

(4) Bake the fabric prepared in step (3) at 180°C for 30 seconds.

Example 2

The specific steps for the preparation method of the anti-wrinkle skin care pure cotton fabric are as follows:

(1) Configuration of finishing fluid: hyaluronic acid: 8/L, polyurethane cross-linking agent Raycare SPU-N: 15g/L, self-crosslinking formaldehyde-free resin Raycare CR-ZFK: 60g/L, fiber protective agent Raycare SF-P: 20g /L, softener Raycare SMH-10: 30g/L;

(2) Use the finishing liquid in step (1) to finish the pure cotton fabric in a two-dip and two-padding method (liquid entrainment rate 80%);

(3) Dry the fabric produced in step (2) at 130°C for 40 seconds;

(4) Bake the fabric prepared in step (3) at 150°C for 80 seconds.

Example 3

The specific steps for the preparation method of the anti-wrinkle skin care pure cotton fabric are as follows:

(1) Configuration of finishing fluid: hyaluronic acid: 10g/L, polyurethane cross-linking agent Raycare SPU-N: 20g/L, self-crosslinking formaldehyde-free resin Raycare CR-ZFK: 80g/L, fiber protective agent Raycare SF-P: 30g /L, softener Raycare SMH-10: 20g/L;

(2) Use the finishing liquid in step (1) to finish the pure cotton fabric in a two-dip and two-padding method (liquid entrainment rate 80%);

(3) Dry the fabric produced in step (2) at 130°C for 40 seconds;

(4) Bake the fabric prepared in step (3) at 150°C for 80 seconds.

Example 4

The specific steps for the preparation method of the anti-wrinkle skin care pure cotton fabric are as follows:

(1) Configuration of finishing fluid: hyaluronic acid: 5g/L, polyurethane cross-linking agent Raycare SPU-N: 20g/L, self-crosslinking formaldehyde-free resin Raycare CR-ZFK: 100g/L, fiber protective agent Raycare SF-P: 40g /L, softener Raycare SMH-10: 10g/L;

(2) Use the finishing liquid in step (1) to finish the pure cotton fabric in a two-dip and two-padding method (liquid entrainment rate 80%);

(3) Dry the fabric produced in step (2) at 120°C for 60 seconds;

(4) Bake the fabric prepared in step (3) at 130°C for 180 seconds.

Comparative example 1

The specific steps for the preparation method of the fabric are as follows:

(1) Configuration of finishing fluid: self-crosslinking formaldehyde-free resin: 100g/L, fiber protection agent Raycare SF-P: 40g/L, softener Raycare SMH-10: 40g/L;

(2) Use the finishing liquid in step (1) to finish the pure cotton fabric in a two-dip and two-padding method (liquid entrainment rate 80%);

(3) Dry the fabric produced in step (2) at 130°C for 40 seconds;

(4) Bake the fabric prepared in step (3) at 150°C for 80 seconds.

Comparative example 2

The specific steps for the preparation method of the fabric are as follows:

(1) Configure finishing liquid: hyaluronic acid: 10g/L, fiber protective agent Raycare SF-P: 20g/L, softener RaycareSMH-10: 20g/L;

(2) Use the finishing liquid in step (1) to finish the pure cotton fabric in a two-dip and two-padding method (liquid entrainment rate 80%);

(3) Dry the fabric produced in step (2) at 130°C for 40 seconds;

(4) Bake the fabric prepared in step (3) at 150°C for 80 seconds.

The anti-wrinkle skin care pure cotton fabrics obtained in Examples 1-3 and Comparative Examples 1-2 were tested for their effects, and the effects of the treated fabrics before washing, 1 time washing, 5 times washing, 10 times washing, and 20 times were measured. The no-iron grade of fabrics after washing, and the hyaluronic acid content in the residual liquid after 1, 2, 3, 4, and 5 washes, with a water-to-bath ratio of 1:10, are used to characterize its no-iron quality. and washability with skin care properties.

The test results of the no-iron level of fabrics of Examples 1-3 and Comparative Example 1 are shown in Table 1;

The test results of the hyaluronic acid content of the fabrics of Examples 1-3 and Comparative Example 2 are shown in Table 2.

Table 1 Test results of fabrics of Examples 1-3 and Comparative Example 1.

0 washes 1 wash 5 times washing 10 times washing 20 times washing Comparative example 1 2.9 2.9 2.8 2.5 2.3 Example 1 3.2 3.2 3.2 3.1 3.0 Example 2 3.0 3.0 3.0 3.0 2.9 Example 3 3.1 3.1 3.0 3.0 3.0 Example 4 3.2 3.2 3.2 3.1 3.1

It can be seen that due to the synergistic effect of the cross-linking agent and the no-iron resin, the no-iron wash resistance of all examples is better than that of the comparative example.

Table 2 Test results of hyaluronic acid content of fabrics in Examples 1-3 and Comparative Example 2

1 wash 5 times washing 10 times washing 20 times washing 50 times washing Comparative example 2 750.98 ppm 50.31 ppm 16.16ppm 15.76ppm 9.31ppm Example 1 25.12ppm 24.66ppm 26.12ppm 29.39ppm 30.68ppm Example 2 28.36ppm 26.19ppm 29.16 ppm 27.59ppm 31.13ppm Example 3 29.12ppm 26.98ppm 27.26ppm 25.19ppm 23.51ppm Example 4 26.12ppm 30.17 ppm 26.83ppm 26.74 ppm 30.51ppm

It can be seen from the results that the pure cotton fabric forms a very strong chemical cross-linking and film-forming structure between the skin care ingredient (macromolecule hyaluronic acid) and the cotton fiber fabric in the presence of cross-linking agent and non-iron resin. The pure cotton fabric provided by the invention has very good firmness and washability of the skin care ingredients.

The above embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims (9)

1. An anti-wrinkle skin care pure cotton fabric, characterized by: containing pure cotton fabric, skin care ingredients, non-iron resin, cross-linking agent, fiber protection agent and softener; The skin care ingredient is macromolecular hyaluronic acid, with a molecular weight of 15,000-30,000 daltons; The cross-linking agent is polyurethane Raycare SPU-N. 2. The anti-wrinkle skin care pure cotton fabric according to claim 1, characterized in that: the no-iron resin is self-crosslinking formaldehyde-free no-iron resin Raycare CR-ZFK. 3. The anti-wrinkle skin care pure cotton fabric according to claim 1, characterized in that: the fiber protective agent is fiber protective agent Raycare SF-P. 4. Anti-wrinkle skin care pure cotton fabric according to claim 1, characterized in that: the softener is softener Raycare SMH-10. 5. A method for preparing the anti-wrinkle skin care fabric according to any one of claims 1 to 4, characterized in that it includes the following steps: (1) Prepare finishing liquid from ingredients other than pure cotton fabrics; (2) Use finishing liquid to finish pure cotton fabrics in a two-dip and two-padding method; (3) The fabric prepared in step (2) is tentered, heat-set, dried, and baked to obtain an anti-wrinkle and skin-care pure cotton fabric. 6. The preparation method of anti-wrinkle skin care fabric according to claim 5, characterized in that: the composition of the finishing liquid in the step (1) is: Macromolecule hyaluronic acid: 3-10g/L; Polyurethane cross-linking agent Raycare SPU-N: 5-20g/L; Self-crosslinking formaldehyde-free resin Raycare CR-ZFK: 60-100g/L; Fiber protectant Raycare SF-P: 10-40g/L; Softener Raycare SMH-10: 10-40g/L. 7. The preparation method of anti-wrinkle skin care pure cotton fabric according to claim 5, characterized in that the two-dip and two-rolling in step (2) has a liquid-carrying rate of 60-80%. 8. The preparation method of anti-wrinkle skin care pure cotton fabric according to claim 5, characterized in that: the drying temperature in the step (3) is: 120-140°C, and the drying time is: 30-60s . 9. The preparation method of anti-wrinkle skin care pure cotton fabric according to claim 5, characterized in that: the baking temperature in step (3) is 130-180°C, and the baking time is: 30-180s.