CN108342904A - A kind of creasing anti-bacterial processing method of real silk fabric - Google Patents

Abstract

The invention provides an anti-wrinkle and anti-bacterial treatment method for silk fabrics. Chitosan itself has obvious anti-bacterial effect, and the biocompatibility is further improved after modification. Secondly, the modified silicone finishing agent can be further easily produced The disadvantage of wrinkles is that the antibacterial properties of the fabric are enhanced after the oxygen-containing groups in graphene are combined with the fabric fibers, and various finishing agent macromolecules can be more fully attached to the fabric surface. In terms of test methods, through the appropriate concentration ratio, adjusting the appropriate water bath temperature and time, combined with the best padding technology, the test effect is the best and most suitable for the human body. The method of the invention has the advantages of simple process, low cost, safety and environmental protection. The finishing agents used are all modified finishing agents, which make full use of the outstanding advantages of the modified finishing agents to make up for the defects of silk fabrics, and can effectively improve the anti-wrinkle and antibacterial properties of silk fabrics. performance, without any damage to the fabric, so that the silk fabric maintains its original feel and toughness.

Description

A kind of anti-wrinkle and antibacterial treatment method of real silk fabric

technical field

The invention relates to a fabric, in particular to a method for treating real silk fabrics.

Background technique

Silk fabric is a kind of fabric made of natural mulberry silk fiber. It is flat and smooth, bright and pure in color, soft to the touch, light in appearance, and good in drapability. Well, it has been loved by people since ancient times.

Silk fabric has many excellent properties, but it is prone to wrinkles and shrinkage during the rinsing process, which is its typical disadvantage. With the continuous emergence of new chemical fibers in recent years, the shortcomings of real silk fabrics have become more prominent, so it is of great significance to improve its anti-wrinkle performance and endow it with various special functions. In addition, the natural fibers in real silk contain a lot of cellulose and protein, which is conducive to the growth and reproduction of bacteria. Therefore, it is necessary to carry out antibacterial treatment on real silk fabrics to make them more safe and healthy during wearing.

Contents of the invention

Purpose of the invention: the purpose of the present invention is to address the deficiencies in the prior art and provide a method for anti-wrinkle and antibacterial treatment of silk fabrics. The silk fabrics treated by this method can effectively improve the anti-wrinkle and antibacterial performance, and have no damage to the fabric, making it Maintain the original feel and toughness.

Technical solution: the invention provides a method for anti-wrinkle and antibacterial treatment of real silk fabrics, comprising the following steps:

(1) Prepare the modified silicone finishing agent aqueous solution with a concentration of 2-10g/L and the MgCl ₂ ▪6H ₂ O catalyst aqueous solution with a concentration of 2-10g/L, mix the two aqueous solutions evenly, and the modified silicone The volume concentration of the finishing agent aqueous solution is in the range of 30%~70%;

(2) Take 100-200ml of the solution from step (1) in a container, heat it in a water bath at 20-50°C for 5 minutes, put it into the silk fabric, completely submerge the silk fabric, and continue heating in the water bath for 5 minutes;

(3) Take out the real silk fabric, dip and roll twice in the solution prepared in step (1), and then dry it at a temperature of 110-130°C and a drying time of 1-3 minutes;

(4) Rinse the dried silk fabric in a soap solution with a volume fraction of 2-10%, at a temperature of 30-50°C, for 20-50 minutes, take it out, wash it with clean water and iron it dry;

(5) Use 0.2mol/L acetic acid solution as a solvent to configure a modified chitosan solution with a mass fraction of 0.1% to 1% as an antibacterial nano-finishing agent;

(6) Put the dried silk fabric in step (4) into the antibacterial nano-finishing agent, and shake it in a water bath at 50°C for 40 minutes;

(7) Take out the silk fabric, wash it with deionized water, and dry the fabric;

(8) Immerse the dried fabric in the graphene dispersion solution for 2 hours, then take it out, then perform two dipping and two rolling operations again, and finally blow dry the fabric at room temperature.

Further, the modified silicone finishing agent in step (1) uses polyether-based silane and aminosilane as main raw materials, and adopts a volume ratio of 1:3 to prepare an amino-modified silicone solution by emulsion polymerization at room temperature.

Further, in step (3), the second dipping and the second rolling adopt a small three-roll rolling car with a liquid rolling rate of 100%.

Further, the modified chitosan solution in step (5) adopts acetic acid solution and chitosan as main raw materials, adopts a volume ratio of 2:3, and reacts at normal temperature to obtain a modified chitosan solution.

Further, in step (6), the oscillation rate of the water bath is 100r/min.

Further, the drying temperature in step (7) is 100° C. to 120° C., and the drying time is 1 min.

Further, the graphene dispersion in step (8) is prepared by the Hummers method. Firstly, the graphene oxide is prepared by mixing 10-20ml of concentrated sulfuric acid, 4g of potassium permanganate, and 1g of graphite. React at high temperature for 30 minutes, add 5ml~10ml of 30% volume fraction of hydrogen peroxide, then wash with 200ml~300ml of 10% volume fraction of dilute hydrochloric acid, after washing, blow dry at room temperature to obtain graphene oxide; Grind into powder, rapidly heat to 700°C~1000°C under microwave to reduce graphene oxide, and then mix the heated powder and water evenly at a mass ratio of 10:7.

Principle of the invention: 1. The active silicon hydroxyl group in the amino-modified organosilicon finishing agent used in the present invention reacts with the hydroxyl group in the cellulose to form a cross-linked network structure to achieve the anti-wrinkle effect. After adding the amino group, the water solubility of the organosilicon increases. It is conducive to the full progress of the reaction. 2. The modified chitosan finishing agent used can combine with the phospholipid membrane on the cell membrane, resulting in denaturation of membrane protein, destruction of membrane structure, and antibacterial effect. The biocompatibility of chitosan after acylation is better. 3. The incorporation of graphene nanomaterials into silk fibers can not only make the antibacterial effect of the fabric better, but also make the organic silicon molecules and chitosan molecules better adhere to the fabric due to its super strong adsorption capacity of macromolecules. The treated silk fabric still has good antibacterial and anti-wrinkle effects even after repeated washing.

Beneficial effects: chitosan itself has obvious antibacterial effect, and the biocompatibility is further improved after modification. Secondly, the modified silicone finishing agent can further easily produce wrinkles, and the oxygen in graphene After the group is combined with the fabric fiber, the antibacterial performance of the fabric is enhanced, and the macromolecules of various finishing agents can be more fully attached to the surface of the fabric. In terms of test methods, through the appropriate concentration ratio, adjusting the appropriate water bath temperature and time, combined with the best padding technology, the test effect is the best and most suitable for the human body. The method of the invention has the advantages of simple process, low cost, safety and environmental protection. The finishing agents used are all modified finishing agents, which make full use of the outstanding advantages of the modified finishing agents to make up for the defects of silk fabrics, and can effectively improve the anti-wrinkle and antibacterial properties of silk fabrics. performance, without any damage to the fabric, so that the silk fabric maintains its original feel and toughness.

Detailed ways

The technical solutions of the present invention will be described in detail below, but the protection scope of the present invention is not limited to the embodiments.

Embodiment 1: a kind of anti-wrinkle antibacterial treatment method of real silk fabric, comprises the following steps:

The first step: configure the modified silicone finishing agent into an aqueous solution with a concentration of 3g/L, add an aqueous solution of MgCl2 6H2O catalyst with a concentration of 6g/L at a volume ratio of 2:1, and mix well;

Step 2: Take the above part of the solution in a beaker, place it in a water bath at 30°C for 5 minutes, put it into silk fabric, and continue the water bath for 5 minutes;

The third step: take out the real silk fabric, use the configuration solution in the first step to dip-dye the fabric, and then use the laboratory three-roller small padding machine (rolling liquid rate 100%) to perform two-dipping and two-rolling on the dip-dyed fabric, and then dry it Drying, where the drying temperature is 130°C and the drying time is 3 minutes;

Step 4: Rinse the dried fabric in 5% soap solution in a 40°C constant temperature water bath for 30 minutes, take it out, wash it several times with water, and iron it dry;

Step 5: Use 0.2mol/L acetic acid solution as a solvent to configure a modified chitosan solution with a mass fraction of 0.6% as an antibacterial nano-finishing agent. Through experiments, it was found that Escherichia coli and Staphylococcus aureus in 0.6% modified chitosan It takes 50h-60h to reach the growth peak, while the solution without modified chitosan can reach the growth peak within 24h;

Step 6: Put the chitosan solution in a beaker, put the dried silk fabric in the fourth step into it, and vibrate in a water bath at 50°C for 40 minutes, wherein the oscillation speed of the water bath is 100r/min;

Step 7: Take out the fabric, wash it several times with deionized water, take the last cleaning solution to measure the pH value, if it is neutral, it means that the acetic acid has been washed, dry the fabric at 100°C~120°C, Drying time 1min;

Step 8: Submerge the dried fabric in the graphene oxide dispersion for 2 hours, then take it out, and then make the oxygen-containing group in the graphene and the silk fiber more stable through two dipping and two rolling operations, and finally blast at room temperature blow dry the fabric;

Step 9: Observing the adhesion of molecules on the surface of the fabric through scanning electron microscopy, it is found that compared with before washing, the overall adhesion of macromolecules is only reduced by 5%, and more than 95% of the adhesion is maintained.

Embodiment 2: a kind of anti-wrinkle antibacterial treatment method of real silk fabric, comprises the following steps:

The first step: configure the modified silicone finishing agent into an aqueous solution with a concentration of 6g/L, add MgCl2 6H2O catalyst aqueous solution with a concentration of 6g/L at a volume ratio of 1:1, and mix well;

Step 2: Take the above part of the solution in a beaker, place it in a water bath at 30°C for 5 minutes, put it into silk fabric, and continue the water bath for 5 minutes;

The third step: take out the real silk fabric, use the configuration solution in the first step to dip-dye the fabric, and then use the laboratory three-roller small padding machine (rolling liquid rate 100%) to perform two-dipping and two-rolling on the dip-dyed fabric, and then dry it Drying, where the drying temperature is 130°C and the drying time is 3 minutes;

Step 4: Rinse the dried fabric in 5% soap solution in a 40°C constant temperature water bath for 30 minutes, take it out, wash it several times with water, and iron it dry;

Step 5: Use 0.2mol/L acetic acid solution as a solvent to configure a modified chitosan solution with a mass fraction of 0.6% as an antibacterial nano-finishing agent. Through experiments, it was found that Escherichia coli and Staphylococcus aureus in 0.6% modified chitosan It takes 50h-60h to reach the growth peak, while the solution without modified chitosan can reach the growth peak within 24h;

Step 6: Put the chitosan solution in a beaker, put the dried silk fabric in the fourth step into it, and vibrate in a water bath at 50°C for 40 minutes, wherein the oscillation speed of the water bath is 100r/min;

Step 7: Take out the fabric, wash it several times with deionized water, take the last cleaning solution to measure the pH value, if it is neutral, it means that the acetic acid has been washed, dry the fabric at 100°C~120°C, Drying time 1min;

Step 8: Immerse the dried fabric in the graphene oxide dispersion for 2 hours and take it out, so that the oxygen-containing groups in the graphene can be more firmly combined with the silk fiber;

Step 9: Observing the adhesion of molecules on the surface of the fabric through a scanning electron microscope, it is found that compared with before washing, the overall adhesion of macromolecules has decreased by 10%, and more than 90% of the adhesion has been maintained.

Embodiment 3: a kind of anti-wrinkle antibacterial treatment method of real silk fabric, comprises the following steps:

The first step: configure the modified silicone finishing agent into an aqueous solution with a concentration of 6g/L, add MgCl2 6H2O catalyst aqueous solution with a concentration of 9g/L at a volume ratio of 1:2, and mix well;

Step 2: Take the above part of the solution in a beaker, place it in a water bath at 30°C for 5 minutes, put it into silk fabric, and continue the water bath for 5 minutes;

The third step: take out the real silk fabric, use the configuration solution in the first step to dip-dye the fabric, and then use the laboratory three-roller small padding machine (rolling liquid rate 100%) to perform two-dipping and two-rolling on the dip-dyed fabric, and then dry it Drying, where the drying temperature is 130°C and the drying time is 3 minutes;

Step 4: Rinse the dried fabric in 5% soap solution in a 40°C constant temperature water bath for 30 minutes, take it out, wash it several times with water, and iron it dry;

Step 5: Use 0.2mol/L acetic acid solution as a solvent to configure a modified chitosan solution with a mass fraction of 0.6% as an antibacterial nano-finishing agent. Through experiments, it was found that Escherichia coli and Staphylococcus aureus in 0.6% modified chitosan It takes 50h-60h to reach the growth peak, while the solution without modified chitosan can reach the growth peak within 24h;

Step 6: Put the chitosan solution in a beaker, put the dried silk fabric in the fourth step into it, and vibrate in a water bath at 50°C for 40 minutes, wherein the oscillation speed of the water bath is 100r/min;

Step 7: Take out the fabric, wash it several times with deionized water, take the last cleaning solution to measure the pH value, if it is neutral, it means that the acetic acid has been washed, dry the fabric at 100°C~120°C, Drying time 1min. . Step 8: Immerse the dried fabric in the graphene oxide dispersion liquid for 2 hours, then take it out, and then dry it at a high temperature of 700°C~1000°C to reduce the graphene oxide, so that the oxygen-containing groups in the graphene and The combination of silk fibers is more stable;

Step 9: Observing the adhesion of molecules on the surface of the fabric through a scanning electron microscope, it was found that compared with before washing, the overall adhesion of macromolecules was only reduced by 8%, and more than 92% of the adhesion was maintained.

Claims (7)

1. a kind of anti-wrinkle antibacterial treatment method of real silk fabric, it is characterized in that: comprise the following steps: (1) Prepare the modified silicone finishing agent aqueous solution with a concentration of 2-10g/L and the MgCl ₂ ▪6H ₂ O catalyst aqueous solution with a concentration of 2-10g/L, mix the two aqueous solutions evenly, and the modified silicone The volume concentration of the finishing agent aqueous solution is in the range of 30%~70%; (2) Take 100-200ml of the solution from step (1) in a container, heat it in a water bath at 20-50°C for 5 minutes, put it into the silk fabric, completely submerge the silk fabric, and continue heating in the water bath for 5 minutes; (3) Take out the real silk fabric, dip and roll twice in the solution prepared in step (1), and then dry it at a temperature of 110-130°C and a drying time of 1-3 minutes; (4) Rinse the dried silk fabric in a soap solution with a volume fraction of 2-10%, at a temperature of 30-50°C, for 20-50 minutes, take it out, wash it with clean water and iron it dry; (5) Use 0.2mol/L acetic acid solution as a solvent to configure a modified chitosan solution with a mass fraction of 0.1% to 1% as an antibacterial nano-finishing agent; (6) Put the dried silk fabric in step (4) into the antibacterial nano-finishing agent, and shake it in a water bath at 50°C for 40 minutes; (7) Take out the silk fabric, wash it with deionized water, and dry the fabric; (8) Immerse the dried fabric in the graphene dispersion solution for 2 hours, then take it out, then perform two dipping and two rolling operations again, and finally blow dry the fabric at room temperature. 2. The anti-wrinkle and antibacterial treatment method for silk fabrics according to claim 1, characterized in that: the modified silicone finishing agent in step (1) uses polyether-based silane and aminosilane as the main raw materials, and uses a ratio of 1:3 Volume ratio, the amino-modified silicone solution is prepared by emulsion polymerization at room temperature. 3. The anti-wrinkle and antibacterial treatment method for real silk fabrics according to claim 1, characterized in that: in the step (3) two dipping and two rolling, a small three-roll padding machine with a liquid rolling rate of 100% is used. 4. The anti-wrinkle and antibacterial treatment method for silk fabrics according to claim 1, characterized in that: the modified chitosan solution in step (5) uses acetic acid solution and chitosan as the main raw materials, using a volume ratio of 2:3 Ratio, react at room temperature to obtain a modified chitosan solution. 5. The anti-wrinkle and antibacterial treatment method for silk fabrics according to claim 1, characterized in that: in step (6), the oscillation rate of the water bath is 100 r/min. 6. The anti-wrinkle and antibacterial treatment method for silk fabrics according to claim 1, characterized in that: the drying temperature in step (7) is 100°C-120°C, and the drying time is 1min. 7. According to the anti-wrinkle and antibacterial treatment method of real silk fabrics described in the claims, it is characterized in that: the graphene dispersion in step (8) is prepared by the Hummers method, first is the preparation of graphene oxide, with concentrated sulfuric acid 10 Mix ~20ml, 4g potassium permanganate, and 1g graphite evenly, react at 40°C~50°C for 30min, add 5ml~10ml 30% volume fraction of hydrogen peroxide, and then wash with 200ml~300ml 10% volume fraction of dilute hydrochloric acid , after washing, blow and dry at room temperature to obtain graphene oxide; then grind graphene oxide into powder, heat rapidly to 700°C~1000°C under microwave to reduce graphene oxide, and then mix the heated powder with water by mass The ratio of 10:7 can be mixed evenly.