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Sol-gel method-based sorting method for quaternary ammonium salt antibiotic textile

A technology of antibacterial fabrics and quaternary ammonium salts, applied in fiber treatment, textiles and papermaking, etc., can solve the problems of low chemical activity of quaternary ammonium salts, easy to cause lesions, strong irritation, etc., achieve excellent antibacterial ability, stable and long-lasting antibacterial performance , Strong adhesion effect

Inactive Publication Date: 2009-09-30
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical activity of quaternary ammonium salts is low, and they basically exist in a free state when they are applied. They are relatively toxic and irritating.
When it is used as an antibacterial agent on textiles, it is elution type, poor heat resistance, easy to migrate, easy to wash off, and easy to gradually enrich on the surface of the human body, and it is easy to cause lesions after long-term use

Method used

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  • Sol-gel method-based sorting method for quaternary ammonium salt antibiotic textile
  • Sol-gel method-based sorting method for quaternary ammonium salt antibiotic textile
  • Sol-gel method-based sorting method for quaternary ammonium salt antibiotic textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add 5% triammonium citrate aqueous solution dropwise to the mixed aqueous solution of 3% water glass, 0.5% cetylpyridinium chloride and 1% polyethylene glycol until the pH value of the solution reaches 10.7, then stirred for 30 minutes to obtain the finishing solution B; the cotton yarn card (20 s ×16 s , 128 × 60) in the obtained finishing solution B, two dipping and two rolling, liquid loading rate 70%, 80 ℃ pre-bake 3 minutes, 120 ℃ baking 3 minutes, obtain quaternary ammonium salt nano antibacterial fabric.

[0029] With reference to GB / T20944.3-2008 "Evaluation of Antibacterial Properties of Textiles", the antibacterial performance of the finished fabrics was tested, and the results are as follows:

[0030] Table 1 The reduction percentage of Escherichia coli under each washing times

[0031]

Embodiment 2

[0033] Be that the water glass of 5% and 0.5% hexadecyltrimethylammonium chloride mixed aqueous solution are added dropwise to the aqueous solution of 5% ammonium sulfate to mass percent concentration, until the pH value of solution reaches 10.7, stir 30 minutes afterwards, obtain Finishing solution A; Cotton yarn card (20 s ×16 s , 128 × 60) in the obtained finishing solution A, double-dip and double-roll, the liquid-carrying rate is 80%, after rolling and stacking for 60 minutes, pre-bake at 80°C for 3 minutes, and bake at 120°C for 3 minutes to obtain quaternary ammonium salt nano antibacterial fabric.

[0034] With reference to GB / T20944.3-2008 "Evaluation of Antibacterial Properties of Textiles", the antibacterial performance of the finished fabrics was tested, and the results are as follows:

[0035] Table 2 The reduction percentage of Escherichia coli under each washing times

[0036]

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PUM

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Abstract

The invention relates to a sol-gel method-based sorting method for quaternary ammonium salt antibiotic textile. The method adopts the sol-gel technology, takes an ammonium salt as a catalyst, and prepares a modified silica sol through the joint hydrolysis of water glass and a quaternary ammonium salt or a quaternary ammonium hydrate. An antibiotic gel coating is formed on the textile by an impregnation, padding or padding stacking method so as to endow the textile with stable and durable antibiotic performance. The method is widely applied to the antibiotic sorting of textile, and has simplicity, low cost and easy industrialization.

Description

technical field [0001] The invention belongs to the finishing field of quaternary ammonium salt nano antibacterial fabrics, in particular to a finishing method of quaternary ammonium salt nano antibacterial fabrics based on a sol-gel method. Background technique [0002] Microorganisms such as harmful bacteria, fungi, and viruses in nature are the main reasons for human beings to suffer from infections and induce diseases. With the improvement of living standards, people's demand for hygiene products is getting higher and higher. The research and application development of antibacterial fabrics has attracted the attention of countries all over the world. At present, quaternary ammonium salt antibacterial agents are dominant in antibacterial fabric products. Quaternary ammonium salt compounds can adsorb negatively charged bacteria and have good bactericidal effect. Due to their good immediate effect and various types, they are widely used. However, the chemical activity of ...

Claims

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Application Information

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IPC IPC(8): D06M13/46
Inventor 邢彦军黄文琦陈倩兰戴瑾瑾
Owner DONGHUA UNIV
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