Antibacterial finishing agent for silk fabrics and preparation method thereof

An antibacterial finishing agent and fabric technology, applied in animal fibers, fiber treatment, textiles and papermaking, etc., can solve the problems of silk fabrics easily breed bacteria and fungal contamination, and achieve the effect of low cost, mild reaction conditions and reduced impact

Active Publication Date: 2022-05-17
湖南寐家居科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem that silk fabrics are prone to bacteria and fungal contamination during use, the present invention aims to provide an antibacterial finishing agent for silk fabrics, which use natural antibacterial ingredients as raw materials and do not add harmful chemicals to the human body. 成分,其对于蚕丝面料的服用性能影响小,抗菌效果显著

Method used

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  • Antibacterial finishing agent for silk fabrics and preparation method thereof
  • Antibacterial finishing agent for silk fabrics and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Preparation and activity determination of antimicrobial peptides

[0029] (1) Design and preparation of antimicrobial peptides

[0030]According to the mechanism of action of Cecropin P1 and the structural site of antibacterial activity, through the structural design of the original Cecropin P1 antimicrobial peptide whose sequence is SEQ ID No: 2, during the design process, the antibacterial peptide domain of Cecropin P1 was maintained, and the antibacterial peptide domain of Cecropin P1 was increased. Positively charged arginine (R) and lysine (K) make it better adsorbed on the surface of silk materials, and also better adsorbed on the surface of negatively charged bacteria. Its antibacterial activity was also enhanced. The sequence of the redesigned antimicrobial peptide is SEQ ID No:1. Among them, the amino acid sequence of SEQ ID No: 1 is: SWLSKTAKKLEKRAKKRKSRGIAIAIQGGRR; the amino acid sequence of the original Cecropin P1 antimicrobial peptide is SEQ I...

Embodiment 2

[0038] Embodiment 2: Preparation and antibacterial activity detection of small molecular weight chitosan

[0039] (1) Preparation of small molecular weight chitosan

[0040] Step 1, the dissolving of high molecular weight chitosan: the viscosity average molecular weight is 3.0 * 10 5 100g of high molecular weight chitosan with a deacetylation degree of 90.5% is dissolved in an acetic acid solution with a volume fraction of 22%, to obtain a chitosan solution with a mass volume concentration of 25% (w / v);

[0041] Step 2, the degradation of high molecular weight chitosan: the chitosan solution prepared in step 1 was subjected to ultrasonic treatment twice, the temperature of the first ultrasonic treatment was 45°C, the time of ultrasonic treatment was 4 hours, and the ultrasonic power was 600W ; The temperature of the second ultrasonic treatment is 20°C, the ultrasonic treatment time is 5 hours, and the ultrasonic power is 200W, and the small molecule chitosan with an average r...

Embodiment 3

[0053] Embodiment 3: the preparation of antibacterial finishing agent

[0054] Step 1: Weigh antimicrobial peptides, small molecular weight chitosan and tea polyphenols by weight, dissolve small molecular weight chitosan with 5% (v / v) concentration of acetic acid solution at 40°C, then cool to room temperature, add The antimicrobial peptide and tea polyphenols were stirred and dissolved to obtain solution A;

[0055] Step 2, adding Tween 80 into solution A, stirring and mixing, adjusting the pH value to 3.0-4.0 to obtain solution B;

[0056] Step 3: Gradually add a sodium tripolyphosphate solution with a concentration of 5g / L dropwise to the solution B in step 2 at room temperature, and stir at a high speed while adding dropwise, until the sodium tripolyphosphate solution is completely dripped, and the present invention is obtained. The antibacterial finishing liquid.

[0057] Wherein in the solution A of step 1, the concentration of antimicrobial peptide is 62.5mg / L; the co...

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Abstract

The present invention uses antibacterial peptides, chitosan and tea polyphenols from natural sources as raw materials to process and prepare silk fabric finishing agents with excellent antibacterial properties, and in the preparation process, chitosan is degraded by means of ultrasonic treatment to obtain small molecules High-quality chitosan avoids the influence of traditional high-molecular-weight chitosan on the air permeability and wrinkle resistance of silk fabrics. The antibacterial finishing agent of the present invention is used to finish silk fabrics, which can effectively improve the antibacterial properties of silk fabrics. Performance, and the fabric still maintains good wearing performance.

Description

Technical field: [0001] The invention belongs to the textile field and relates to an antibacterial finishing agent for textile materials, in particular to an antibacterial finishing agent for silk fabrics and a preparation method thereof. Background technique: [0002] Silk is woven from silk fiber as a raw material. It is a traditional cultural industry in my country, and its culture has lasted for thousands of years. Silk fiber is a kind of protein fiber. The silk fibroin in silk contains 18 kinds of amino acids and natural porous protein fiber components that are of great nutritional value to the human body. Therefore, silk fabrics have a good affinity for human skin and can well delay skin aging. Skin aging and nourishing skin. The cross-section of silk fiber is triangular, and the longitudinal direction is smooth and flat. It has a layered structure, which makes it have better luster than other fibers. The fineness of silk makes it have a comfortable hand feeling, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/03D06M13/11D06M13/402C08B37/08C07K14/435D06M101/10
CPCD06M15/03D06M13/11D06M13/402D06M16/00D06M2101/10D06M2200/20
Inventor 谢维
Owner 湖南寐家居科技有限公司
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