US-12618193-B2 - Method for preparing antimicrobial treatment agent for textile

Abstract

The present invention provides a method for preparing an antimicrobial treatment agent for textiles, including steps of: (S 1 ) providing substances of: (a) divalent copper ion salt; (b) ammonia water or ammonium salt; (c) an inorganic alkaline aqueous solution; (d) an organic substance of alcohols or carbohydrates containing only carbon, hydrogen and oxygen elements; (e) water; and (S 2 ) mixing and ageing above solutions using alcohols or carbohydrates as a catalyst to form a compound of a copper ammonium complex. In the method for preparing an antimicrobial treatment agent for textiles of the present invention, the treatment agent does not contain a heavy metal or an organic element that may have toxicity, for example, nitrogen, phosphorus or sulfur, an alkaline material used for treating the textile does not contain a non-volatile or an organic amine compound, an organic substance such as alcohols or carbohydrates is skillfully used as a catalyst, and copper ions form a complex for transition, so that natural textile fibers are grafted to copper ions more tightly and have advantages of safety, environmental friendliness, scrub resistance, a high antibacterial effect and long life of service.

Inventors

• Chanjuan JIANG
• Haibin GU

Assignees

• Shanghai Prosheldor Sci. & Tech. Co., Ltd

Dates

Publication Date

20260505

Application Date

20201203

Priority Date

20201112

Claims (3)

1. 1 . A method for preparing an antimicrobial treatment agent for a textile, wherein the method includes steps of: Step S 1 providing below substances: (a) 50% copper sulfate aqueous solution, wherein weight of copper sulfate is 50% of total weight of copper sulfate aqueous solution; (b) 28% ammonia hydroxide aqueous solution, wherein weight of ammonia hydroxide is 28% of total weight of ammonia hydroxide aqueous solution; (c) 10% sodium hydroxide aqueous solution, wherein weight of sodium hydroxide is 10% of total weight of the sodium hydroxide aqueous solution; (d) a mixture, which includes: ethanol, glycerol, propylene glycol, polyethylene glycol, and glucose; and (e) water; Step S 2 mixing and ageing the above substances using alcohol or carbohydrate as a catalyst to form a compound of a copper ammonium complex.
2. 2 . The method for preparing an antimicrobial treatment agent for a textile according to claim 1 , wherein the weight ratio of ethanol, glycerol, propylene glycol, polyethylene glycol, and glucose is 0.3:1:3:1:1.6, 3:1:5:1:9.9, or 1.9:3:20:3:10.
3. 3 . The method for preparing an antimicrobial treatment agent for a textile according to claim 1 , wherein an amount of the 50% copper sulfate aqueous solution is 10.1 parts by weight, amount of aqueous solution of ammonia hydroxide is 2.9 parts by weight, amount of 10% sodium hydroxide aqueous solution is 0.1 part by weight, amount of ethanol is 0.3 part by weight, amount of glycerol is 1 part by weight, amount of propylene glycol is 3 parts by weight, amount of polyethylene glycol is 1 part by weight, and amount of glucose is 1.6 part by weight, amount of water is 80 parts by weight, wherein the total parts is 100.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This present application is a National Stage application of International Patent Application No. PCT/CN2020/133670, filed on Dec. 3, 2020, which claims the priority of China Invention Patent Application No. 202011261192.3, entitled “METHOD FOR PREPARING ANTIMICROBIAL TREATMENT AGENT FOR TEXTILE” filed on Nov. 12, 2020. The contents of all above applications are incorporated herein by reference in their entirety. FIELD OF THE INVENTION The present invention relates to the technical field of antimicrobial composite materials, specifically to a method for preparing an antimicrobial treatment agent for textiles. BACKGROUND With continuous improvement of consumption and living standards in China, higher requirements are imposed on quality of various textiles. Cotton fabrics originated from natural sources are soft and comfortable to wear, but have poor antibacterial and mildew resistance, which can easily result in microbial growth thereon and cause a great risk to human health. Microorganisms can parasitize and grow on textiles, which also reduces service life of textiles and makes the textiles become carriers for microbial spreading. Antimicrobial treatment agents for the textiles can reduce the growth of microorganisms on the textiles, to improve durability of the textiles, reduce the number of washing times, reduce infections caused by microorganisms, better protect the environment, and improve human health. Because the antimicrobial materials often cause risks to the natural environment and human safety, environmental protection and human safety issues of the antimicrobial materials have attracted increasingly attention. Inorganic antibacterial agents based on metal elements such as silver, mercury, lead, arsenic, tin and zinc, and antibacterial agents including organic substances and metals can pollute the human body and the environment, and especially have persistent high toxicity to soil and water bodies. Organic antimicrobial treatment agents such as Triclosan, Chlorothalonil and isothiazolinone usually have serious impact on human health. Widely existing in the human body, soil and water, copper ions are a safe and environmentally friendly antibacterial element. However, in the prior art, due to colors, complexes of copper ions, they cannot directly act on the textiles or have any washing fastness on the textiles, which greatly limits application of copper ions. SUMMARY To resolve technical problems mentioned in Background, an inventive purpose of the present invention is to provide a method for preparing an antimicrobial treatment agent for textiles, where the treatment agent does not contain a heavy metal or an organic element that may have toxicity, for example, nitrogen, phosphorus or sulfur. The inventor notices that an alkaline material used for treating the textiles does not contain a non-volatile or an organic amine compound, and thus, an organic substance such as alcohols or carbohydrates is skillfully used as a catalyst, and copper ions form a complex for transition, so that natural textile fibers are grafted to copper ions more tightly. Thus, the obtained antimicrobial treatment agent has advantages of safety, environmental friendliness, scrub resistance, a high antibacterial effect and long duration. Specifically, the present invention provides a method for preparing an antimicrobial treatment agent for a textile, including steps of: Step S1 providing below substances: (a) salt containing divalent copper ion;(b) ammonia water or ammonium salt;(c) an inorganic alkaline aqueous solution;(d) an organic substance of alcohols or carbohydrates containing only carbon, hydrogen and oxygen elements; and(e) water; Step S2 mixing and ageing the above solutions using alcohol or carbohydrate as a catalyst to form a compound of a copper ammonium complex. Further, said ammonium salt includes one or more of below substances ammonium chloride, ammonium nitrate, ammonium sulfate, ammonium citrate and ammonium acetate. Further, said inorganic alkaline aqueous solution includes an aqueous solution of one or more of below substances: sodium carbonate, sodium acetate, sodium hydroxide and potassium hydroxide. Further, said organic substance of alcohols or carbohydrates includes one or more of below substances: methanol, ethanol, propylene glycol, glycerol, butanol, polyethylene glycol, glucose, an oligosaccharide and polysaccharide. Further, more than four kinds of organic substances of alcohols or carbohydrates from above alcohols or carbohydrates substances are used as catalysts, to form a copper ion antimicrobial treatment agent in which divalent copper ions have good binding fastness with the textiles. Further, said salt containing divalent copper ion is copper sulfate, said inorganic alkaline aqueous solution is sodium hydroxide, said organic substances are ethanol, glycerol, propylene glycol, polyethylene glycol, and glucose; the part and percentage of raw materials