CN100344822C - Polycomponent fiber product composite nano antibacterial agent, its preparing method and use - Google Patents

Abstract

The invention discloses an inorganic/organic composite nano antibacterial agent for multi-component fiber products, a preparation method and an application process thereof. The composition and weight percent content of the nano antibacterial agent of the present invention are: 5%-10% of inorganic nano antibacterial agent, 15%-25% of reactive organic antibacterial agent, 5%-10% of cationic antibacterial auxiliary agent, and appropriate amount of distilled water. The nano antibacterial agent for multi-component fiber products of the invention can be used for antibacterial finishing of multi-component fiber products. The composite nano antibacterial agent of the present invention has good stability, and is convenient for finishing multi-component fiber products. The finished product has very obvious antibacterial, deodorizing, and mildew-proof effects, and the finishing agent and finishing products themselves are non-toxic, and are harmful to human body and body. The environment will not cause harm, and it meets the standards of the Ministry of Health. In addition, the finished clothes have good washability and the hand feeling is not affected.

Description

Composite nano antibacterial agent for multi-component fiber products, preparation method and application

technical field

The invention relates to a nano antibacterial agent for multi-component fiber products, in particular to a preparation and application method of the nano antibacterial agent.

Background technique

Nanotechnology is a new field of research and development that enhances the control over the structure of nanoscale materials. 1 nanometer is equal to 1 billionth of a meter. Nanoobjects are intermediates between molecules and bulk materials.

In the nanoscale range, electrons exhibit mechanical, chemical, photonic, electrical or magnetic properties that bulk materials do not have due to strong attractive forces, quantum effects, large area-to-volume ratios, and area-to-volume ratios.

The area effect and volume effect are the specific manifestations of the unique properties of nanomaterials. The area effect decreases with the decrease of the particle diameter of nanomaterials. When the atomic surface energy is increased and activated, the scale of surface atoms will expand. The volume effect means that the microscopic and macroscopic characteristics of the surface atoms of nanomaterials will experience irregular changes caused by the separation of electron energy levels, the expansion of energy gaps, the changes of crystal patterns, and the reduction of surface atomic density.

Application of nanotechnology can create a variety of innovative products with unique and excellent functional properties. So far, the nanotechnology that can be used for industrialization is the application of nanomaterials, such as nanopowders, nanoreagents, nanotubes, etc., to produce nanoproducts with unique functionalities.

Natural, man-made and synthetic fibers have different properties and each has advantages and disadvantages. Through blending and interweaving, various fibers can learn from each other and greatly improve the wearing performance of the fabric. From the current situation of clothing fabrics, there are fewer and fewer fabrics using a single raw material, while more and more fabrics are composed of multiple fibers. At present, some popular blended and interwoven products have at least 2 to 3 kinds of fibers, and as many as 4 to 6 kinds of fibers. The ratio is mainly based on the use and grade of different products to improve the performance of the product or obtain a special appearance.

With the improvement of living standards, people have put forward further requirements for the functions of taking fiber products. Various functional fibers continue to emerge, and antibacterial hygiene products have gradually been accepted by people. With huge commercial interests, the development and application of antibacterial fiber products has become a trend in the development of the apparel and apparel industry. In recent years, antibacterial finishing fiber products have also been seen in the domestic market from time to time, but there are very few nano antibacterial finishing products, and there is almost no antibacterial finishing on multi-component fiber products. Therefore, consumers expect to develop an antibacterial agent suitable for multi-component fiber products to meet the needs of life.

Contents of the invention

The technical problem to be solved in the present invention is to disclose a nano antibacterial agent for multi-component fiber products, its preparation and application method, so as to meet the needs of related parties.

The composition and weight percentage content of nano antibacterial agent of the present invention are:

Inorganic nano antibacterial agent 5%～10%

Reactive organic antibacterial agent 15%～25%

Cationic antibacterial auxiliary agent 5%～10%

Distilled water balance

The inorganic nano-antibacterial agent is selected from silver-loaded zeolite, titanium-silver phosphate, titanium-zinc phosphate, silver-ammonium complex salt, silver-loaded silica gel, soluble silver glass, etc., or an active emulsion based on a mixture thereof.

Described reactive organic antibacterial agent is selected from one or its mixture in triclobendazole, diclobendazole, diclobendazole, isothiazolinone, trimethoprim or pyripamide and epichlorohydrin , ethylene glycol, propylene glycol, glycerol or a mixture of reactants.

Described cationic antibacterial assisting agent is selected from fatty alcohol polyoxyethylene ether (Pingping plus O), alkylphenol polyoxyethylene ether (emulsifier OP), lauryl dimethyl benzyl ammonium chloride, dodecane Two or three of dimethyl benzyl ammonium bromide, alkyl pyridinium salt, and polyethylene glycol.

The composite nanometer antibacterial agent of the present invention has good stability, is nontoxic, does not cause harm to human body and environment, and meets the standards of the Ministry of Health. It is convenient for multi-component fiber products to be finished. As long as the fiber products get 2% to 5% antibacterial agent, an aqueous solution is prepared, applied to the fabric, and then dried to obtain antibacterial fiber products.

Compared with the existing inorganic silver-based nano-antibacterial agent, the inorganic/organic nano-composite antibacterial agent trial-produced in the present invention has good stability, low cost, spectrum antibacterial, better and longer antibacterial effect, and much improved washability.

Adopt the product of antibacterial agent finishing of the present invention, adopt AATCC 100-1993 standard to detect by Shanghai Center for Disease Control and Prevention Parasite Prevention and Control Institute, the results show that the 24h bactericidal rate of Staphylococcus aureus, Escherichia coli, Candida albicans＞99.99% %, has a good ability to inhibit and kill various bacteria and fungi. It shows that the finished product has very obvious antibacterial, deodorizing and anti-mildew effects. In addition, the hand feeling of the clothes is not affected, the antibacterial effect is long-lasting, and the washability is good. After 100 times of washing, the antibacterial rate still reaches more than 99%.

The "fiber product" involved in the present invention may be fibers, wool tops, yarns, woven fabrics, knitted fabrics, and non-woven fabrics. In addition, it can be cellulose fiber (including cotton, hemp, viscose, modal, tencel, copper amine fiber, acetate fiber, bamboo fiber, etc.), and cellulose fiber ≥ 60% mixed with chemical fiber or animal fiber One or more mixture fibers.

Antibacterial fiber products in the present invention can be made into inner and outer underwear, sportswear, socks, carpets, bedding, automotive interior materials, medical gauze and stretch cloths, insoles, seat cushions, sterile surgical clothing, medical staff work clothes, Patient gowns, sterile masks, hygienic packaging materials, filter materials, diapers, women's sanitary napkins, gloves, scarves, hats, etc.

The following examples illustrate the use of the present invention in finishing multicomponent fibrous products. The implementation examples are for illustration only, but the applied process is not limited thereto.

Example 1

Fiber products: knitted underwear with a ratio of cotton: modal: cashmere 5:4:1

Process flow: Knitted underwear → impregnated with antibacterial finishing solution (bath ratio 1:10), 50～70℃, 30～40min)→centrifugal dehydration→drying

Antibacterial finishing liquid weight percent: antibacterial agent 5%, cationic silicone softener 6%.

Antibacterial agent weight percent content is:

Silver amine complex salt 5%

Methylbenzidine 15%

Dodecylbenzylamine bromide 6%

Glycerol (glycerin) 5%

Water 69%.

Example 2

Fiber products: cotton: spandex is 95:5 plain cloth

Technological process: fabric→refining and bleaching→drying→padding antibacterial finishing solution (rolling rate 75%)→drying (80°C, 1～2min)→baking at 130°C, 3min)

Antibacterial finishing liquid weight percent: antibacterial agent 40g/l, cationic silicone softener 80g/L;

Antibacterial agent weight percent content is:

Silver loaded zeolite 5%, (2% silver content)

Triclobendazole 18%

Fatty alcohol polyoxyethylene ether 5%

Polyethylene glycol (molecular weight 100) 5%

Water 67%.

Example 3

Fiber products: cotton: copper amine fiber: nylon cheese with a ratio of 6:2:2

Process flow: cheese→washing→centrifugal dehydration→immersed in antibacterial finishing solution (bath ratio 1:10), 60°C, 40min)→centrifugal dehydration→drying

Antibacterial finishing liquid weight percent: antibacterial agent 4%, Pingping plus O 2%

Antibacterial agent weight percent content is:

Silver-loaded silica gel 5%, (silver content is 2%)

Pyramide 15%

Dodecylbenzylamine bromide 6%

Alkylphenol polyoxyethylene ether 0.5%

Polyethylene glycol (molecular weight 200) 5%

Water 68.5%

Example 4

Fiber products: polyester/viscose (35/65) non-woven fabric

Process flow: non-woven fabric→spray antibacterial finishing agent (concentration 20～30g/l)→drying (100℃, 2～3min)

Antibacterial agent weight percent content is:

Titanium silver phosphate 5%

Diclobendazole 18%

Dodecylbenzylamine bromide 6%

Alkylphenol ethoxylates 2%

Polyethylene glycol (molecular weight 200) 5%

Water 64%

Example 5

Antibacterial finishing underwear

Detection method: Antibacterial underwear is placed in petri dishes inoculated with Staphylococcus aureus, Escherichia coli and Candida albicans (the area of antibacterial underwear is basically the same as that of the petri dish). Three culture dishes each, and a blank control group were set up, placed in a 37°C incubator, and the sterilization effect was observed at 24 hours.

Test results: The effect of antibacterial underwear on Staphylococcus aureus, Escherichia coli and Candida albicans is as follows:

Test sample Strains Inoculum count 24h antibacterial number 24h killing rate (%) Antibacterial Knitted Clothes Staphylococcus aureus Escherichia coli Candida albicans 150015001500 150015001500   100100100 Unprocessed pieces Staphylococcus aureus Escherichia coli Candida albicans 150015001500 000 000

Result evaluation: the 24h kill rate of antibacterial underwear to Staphylococcus aureus, Escherichia coli and Candida albicans was >99.99%, and the 24h kill rate of untreated clothing tablets to Staphylococcus aureus, Escherichia coli and Candida albicans was 0 %. Antibacterial underwear has a remarkable effect against Staphylococcus aureus, Escherichia coli and Candida albicans.

Claims (4)

1. a polycomponent fiber product composite nano antibacterial agent is characterized in that, component and weight percent content are:

Inorganic nano antiseptic 5%-10%

Reactive organic antibacterial agent 15%-25%

Cationic antimicrobial is assisted agent 5%-10%

Distilled water surplus;

Described inorganic nano antiseptic is selected from zeolite with carrying silver, titanium phosphate silver salt, titanium phosphate zinc salt, silver-colored ammonium complex salt, and a kind of or its mixture that carries in silver-colored silica gel or the silver soluble glass is main active emulsion;

Described reactive organic antibacterial agent is selected from triclabendazole, Miconazole and pyrrole and foretells a kind of in the acid amides;

Described cationic antimicrobial assists agent to be selected from two in fatty alcohol-polyoxyethylene ether, alkylphenol polyoxyethylene, dodecyl benzyl dimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide or the polyethylene glycol or three kind of mixture.

2. the application of polycomponent fiber product composite nano antibacterial agent according to claim 1, it is characterized in that, be used for polycomponent fiber product is carried out antibiotic finish, obtain the antiseptic of 2%-5% by claim 1 by fibre, the configuration aqueous solution, be applied on the fibre, oven dry just can make antibacterial fiber product then.

3. application according to claim 2 is characterized in that, the goods form is fiber, wool top, yarn, woven, knitted fabric, nonwoven fabric.

4. application according to claim 2, it is characterized in that, the antibacterial fiber product of manufacturing is made interior outerwear trousers, sportswear, socks, carpet, bedding, automotive interior material, hospital gauze and the cloth that stretches tight, shoe-pad, seat cushion, aseptic operation clothes, healthcare givers's work clothes, johnny, aseptic mouth mask, hygienically packaged material, filtering material, diaper, sanltary towel, gloves, muffler or cap.