SU1523604A1 - Method of antimicrobic finishing of cellulose textile material - Google Patents

Abstract

The invention relates to chemical technology of fibrous materials, in particular to methods for the antimicrobial finishing of textile materials. The invention makes it possible to increase the strength of fixing an antimicrobial substance to water-alkaline treatments by treating textile materials based on copper-ammonia fiber containing 0.3-6.0 copper with an aqueous solution of a guanidine compound, furagin, or their mixture to keep them on -15%. Then drying or steaming is carried out. 1 tab.

Description

The invention relates to chemical technology of fibrous materials, and in particular to methods for the antimicrobial finishing of fibrous materials, which can be used to make garments, underwear.

The purpose of the invention is to increase the strength of fixing the antimicrobial substance to water-alkaline treatments. „

Example 1. A copper-ammonia fiber in the form of a rope with a residual copper content of 0.3 wt.% By weight of cellulose, obtained by molding in a water-diethylene glycol precipitating bath followed by orientation hoods in air and May 2 with aqueous sulfuric acid solution (second bath) at 70 ° C. After washing with water from copper compounds not bound to cellulose, a freshly formed tow containing 0.3 wt. copper by weight of cellulose, treated with water

a solution of chlorhexidine digluconate with a concentration of 2 wt.% at 20 C for 0.1 min, wring out and dried at 100 ° C, washed with water and dried.

The content of the antimicrobial substance in the obtained material before and after washing is determined by their content of nitrogen and the spectrophotometric method after desorption of the antimicrobial substance with a solution of hydrochloric acid from the material. Washing the obtained material in an alkaline environment is carried out with a synthetic laundry detergent for mechanized laundries, the powder concentration is 4 g / l, bath modulus 20, temperature 65 ° C, the duration of each wash is 30 minutes, after each wash the material is washed with water three times for 5 minutes at 60 C and dried. The neutral material is washed with an OP-10 aqueous solution with a concentration of

SP

Yu

00 05

about

H g / l. The rest of the washing conditions are similar to those described.

Example 2 As a fibrous material, copper-ammonium fiber in the form of a rope with a residual copper content of 3.0 wt.% By weight of cellulose, obtained by molding in a water-diethylene glycol precipitating bath followed by orientation drawing in air and 0, is used. , 2 wt.% - nom aqueous solution of sulfuric acid (second bath). After washing with water and drying, the freshly formed tow with a copper content of 3.0 masd is treated with an aqueous solution of an antimicrobial substance as in Example 1,

Example Copper-ammonia fiber with a residual copper content of 6.0 May is used as a fibrous material. from the mass of cellulose obtained by molding in a water-diethylene glycol precipitation bath with subsequent orientational stretching in air and in May 5.0, with a% aqueous solution of NaCOj heated to (second bath), then the fiber is washed with water, dried and treated an aqueous solution of an antimicrobial substance as in Example 1.

Example. As a fibrous material, a bundle of copper and ammonia fibers with a residual copper content of 3.0 wt. by weight, cellulose, obtained analogously to example 2, The specified bundle is cut, after that the fiber is processed into yarn and then into a knitted fabric, which Ipoe is processed on a bark of 0.2 May. % aqueous solution of furagin for 1 h at 20 ° C, with module 20, dried at 80 ° C, washed with water and dried,

Froze As a fibrous material, copper-ammonia fiber is used in the form of a cake with a residual copper content of 3.0 wt. by weight of pulp. This thread is obtained similarly to example 2. Then the cake is treated with a 5.0% w / w aqueous solution of chlorhexidine digluconate at 2 ° C ,. wring out, dried at, washed with water and dried.

. Rime p6. As fiber material, copper-ammonium fiber with a residual copper content of 3.0 wt. from the mass of cellulose, obtained similarly to

g

. Q

0

five

2. After that, the fiber is processed into yarn, and then into fabric. The fabric is treated on a padding with a 10% w / w aqueous solution of chlorhexidine digluconate, wrung out (spin degree 100%), steamed for 1 minute, washed with water and dried.

An example. The method is carried out analogously to Example 2, but metacid hydrochloride is used as the antimicrobial substance.

Example 8: The method is carried out analogously to example 2, but chlorhexidine diacetate is used as the antimicrobial substance.

EXAMPLE 9 The method is carried out analogously to Example k, but as a antimicrobial substance a mixture of chlorhexidine digluconate and furagin is used with a solution concentration of 2.0 and 0.2 wt. respectively.

PRI me R 10 (comparative), to g x blade tissue plus an aqueous solution containing 40 g / l of the drug DCM, squeeze to a weight gain of 100%, dry and plus a solution containing, g / l:

Furagin5,0

Potash do pH

Drug OP-70,5

Triethanolamine2.0

Water To 1 l, squeeze to a weight gain of 100%, dry, steam for 100 s, wash, dry.

The properties of the material after washing in examples 1-10 are given in the table ..

Claims (1)

Invention Formula Method of antimicrobial finishing of cellulosic textile material by treatment with an aqueous solution of an antimicrobial substance, followed by drying. . or by steaming, about t. L and h and th and y with the fact that, in order to increase the fixation strength of the antimicrobial substance on the material, the compound of the guanidine series, furagin or their mixture is used as an antimicrobial substance, compounds up to its content on the fiber 3-15 wt.% is subjected to a material based on copper-ammonia fiber, containing 0.3-6.0 wt.% copper. After one wash.