RU2114229C1 - Method for fungicidal treatment of cotton fiber-containing textile ware - Google Patents

Abstract

FIELD: textile industry. SUBSTANCE: invention relates to textile finishing procedures and, namely, to the methods of fungicidal treatment of hosiery and underwear ware designed to solve medical-prophylactic tasks and which may be, in particular, applied in knitwear manufacture. According to invention, ware containing 70- 100% cotton fiber, when dyed by self-leveling direct dyes and washed by hot water, are treated for 30 min in solution of a bactericide preparation based on alkyldimethylbenzylammonium chloride in concentration 1-2 g/l and 60-70 C. Thus, manufactured are high- quality comfortable medical-prophylactic cotton-fiber ware manifesting high fungicide activity, perspiration and friction- resistance of color, soft touch, and deodorant property. EFFECT: improved medical-prophylactic properties. 2 cl, 4 tbl

Description

 The invention relates to textile finishing production, and in particular to methods for finishing hygienic textile products, such as hosiery, linen, used for medical and preventive purposes, and can be used in knitwear production.

 The method is intended to give products a stable, antimycotic (antifungal) effect that protects against the effects of the most common mycoses of the feet (for hosiery) and inguinal areas of the person (for linen).

 Due to the wide spread of various fungal diseases (for example, about 30% of the population is affected by foot mycoses), the creation of such therapeutic and prophylactic products, and especially hosiery, is of particular relevance.

 There are various methods of antimicrobial and bactericidal treatment of textile materials, however, these processes are mainly aimed at disinfecting materials and protecting against infectious diseases such as E. coli, various staphylococci and only some of them provide protection against a limited type of fungi, mainly yeast or mold (Kazakevichyute G. A. et al. Giving antimicrobial properties to cellulosic materials. Textile Industry, 1983, N 9, p. 53 - 55).

 From the patent and scientific and technical literature, for a specialist, methods for processing products containing cotton fiber and dyed with direct dyes are explicitly unknown for protection against the effects of specific mycoses of the feet and inguinal region of a person.

 In addition, compositions for antimicrobial treatment of many known methods require the use of aggressive chemical media (solvents, alkalis, etc.), which worsens working conditions and pollutes the environment (ed. St. SU N 1010166, class D 06 M 13 / 18, 1983. Composition for bactericidal treatment of textile products).

 A known method of antimicrobial finishing of wool, comprising treating with an aqueous solution of a special bactericidal preparation based on a quaternary ammonium compound (alkyldimethylbenzylammonium chloride) with preliminary or subsequent treatment with aqueous 15 - 20% ammonia solution (ed. St. SU N 1257127, class D 06 M 3 / 10, 1986. Method of antimicrobial finishing of wool).

 The disadvantage of this method is the need to use a high concentration of ammonia solution, which worsens working conditions (the presence of a sharp irritating smell), and also pollutes waste water. In addition, it is recommended only for the processing of wool and provides protection against germs and a limited type of mushroom (mainly yeast).

 Of the methods aimed at limiting the spread of leg dermicosis, a method for hygienic finishing of hosiery is known through the use of specially developed bactericidal modified active dyes, during the dyeing of which an antifungal effect is achieved (Livent V.L. et al. Development of technology for hygienic finishing of knitwear All-Union scientific and technical conference. Modern chemical and physico-chemical methods for finishing textile materials. Abstracts of reports and messages, Dushanbe, 1980, p. 136).

 For its intended purpose, this method is the closest to the proposed one.

 The disadvantage of this method is that it is based on the use of active dyes, which in domestic and world practice have found limited use for dyeing cotton-containing hosiery due to the complexity of the dyeing process on existing types of equipment and economic inappropriateness. This method has not found practical application.

 The task was to create, on the basis of standard technological processes, a simple economical technology for the production of therapeutic and prophylactic cotton-containing hosiery and linen knitwear with high antimycotic activity, color fastness to sweat and friction, soft neck and deodorizing effect, providing increased comfortable conditions when worn.

This problem is solved by the method of antimycotic finishing of textile products containing cotton fiber, dyeing and processing them using a bactericidal preparation, moreover, according to the invention, dyeing is carried out with direct dyes, followed by washing with hot water from an unfixed dye, and the treatment is carried out with an aqueous solution of the drug based on alkyldimethylbenzylammonium chloride as a bactericidal preparation with a concentration of 1 - 2 g / l and cooled by washing with cold water to 20 - 30 ^o C.

As a bactericidal preparation, for example, an alkyldimethylbenzylammonium chloride-based preparation of the general formula [R (CH ₃ ) ₂ (CH ₂ C ₆ H ₅ )] ⁺ Cl ^{- is used} , where R is a mixture of straight-chain alkyl groups C ₁₀ H ₂₁ - C ₁₈ H ₃₇ or C ₁₂ H ₂₅ - C ₁₄ H ₂₉ (TU 2482-012-13164401-94), with a solution concentration of 1 - 2 g / l and a temperature of 60 - 70 ^o C.

 Due to the formation of stable chemical bonds of the bactericidal preparation with direct dyes, the antimycotic activity is high, resistant to repeated washing, to the most common types of skin mycoses, while improving coloring to sweat and friction, deodorizing effect and improving the neck of products.

 An additional advantage of the proposed method is that the treatment with a bactericidal preparation is carried out immediately after the operation of direct dyeing itself, instead of the commonly used softener treatment. Moreover, the total duration of the dyeing process does not change.

 The invention is illustrated by the following examples.

Socks with a cotton yarn content of 100 and 70 and 30% polyamide after dyeing with direct dye brown light-strength 2KX at a concentration of 1% by weight of the products were treated with a solution of alkyldimethylbenzylammonium chloride at a concentration of 1 and 2 g / l at 30, 60 and 70 ^o C for 30 minutes, then washed cold water (examples 1 to 7).

 Studies of the antimycotic properties of products were carried out on the basis of the Central Scientific Research Dermatovenerologic Institute of the Ministry of Health of the Russian Federation.

 The antimycotic activity of the socks was tested by agar diffusion using Trichophyton rubrum as an infection, which in 96 - 97% of cases caused foot mycoses.

 The color stability of products to sweat and friction was checked according to the method of GOST 2351-88, bar (rigidity) - according to GOST 10550-75.

 Data on the antimycotic activity of socks before and after 20 washes, depending on the treatment conditions with a bactericidal preparation, are given in table. 1, indicators of color stability and stiffness of socks in comparison with untreated - in table. 2.

 Linen products were processed according to the following options.

Products with 100% cotton yarn after dyeing with direct dyes at a concentration of 1.5% by weight of the products and washing with hot water at 60 - 70 ^o C were treated with a solution of a bactericidal preparation of a concentration of 1 and 2 g / l at 60 and 70 ^o C (examples 8 - eleven).

 The antimycotic activity of the products was investigated to the effect of microbes that cause inguinal erythrasma disease.

 Data on the antimycotic activity of linen products depending on the processing conditions before and after 20 washes are given in table. 3, the test results of color stability and stiffness of the products are in table. 4.

 As can be seen from the data table. 1 and 3, the diameter of the zone of growth inhibition of fungi is 50 - 80 mm for socks and 35 - 60 mm for linen, which exceeds on average 1.5 - 2 times the same indicators for other microorganisms, known from published sources, and indicate high antimycotic activity of products processed by the proposed method. A decrease in the concentration of the drug below 1 g / l worsens the antimycotic properties of the products, and an increase in the concentration of the drug to 3 g / l and higher does not cause a noticeable increase in antimycotic activity.

The treatment of products with a bactericidal preparation at 60 - 70 ^o C along with the achievement of high antimycotic properties provides a reduction in the overall technological cycle of dyeing and processing of products.

 Clinical trials of the products did not reveal any harmful signs of skin irritation and an allergic reaction from contact with antimycotic products.

 As follows from the data table. 2 and 4, the products, along with high antimycotic activity, have a high coloring resistance to sweat and friction, have a softer neck, as well as dezorizing properties. This is very important for medical and prophylactic products, which, in addition to reliable protection against mycoses, should also provide increased comfortable conditions when worn.

 Thus, the proposed method of decoration allows you to create high-quality comfortable therapeutic and prophylactic textile products with a cotton fiber content of 70 - 100%.

Claims (2)

1. The method of antimycotic finishing of textiles containing cotton fiber, dyeing and processing them using a bactericidal preparation, characterized in that the dyeing is carried out with direct dyes, followed by washing with hot water from an unfixed dye, and the treatment is carried out with an aqueous solution of the drug based on alkyldimethylbenzylammonium chloride as a bactericidal preparation with a concentration of 1 - 2 g / l and cooled by washing with cold water to a temperature of 20 - 30 ^o C. 2. The method according to claim 1, characterized in that the treatment with a solution of the drug based on alkyldimethylbenzylammonium chloride is carried out at 60 - 70 ^o C.

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