Method of protecting textile materials from biological damages

FIELD: biocide agents.

SUBSTANCE: method of invention related on the whole to finishing of textile materials. Textile materials, including textile museum exhibits, are impregnated with solution of biocidal alkoxysiloxane derivative of 3,6-dichloro-2(4-hydroxyphenoxy)pyridine in organic solvent or aqueous emulsion. Material is then dried at 140-150°C for 3-5 min or kept at ambient temperature for 24 h. Impregnation with above solutions is conducted in presence of γ-aminopropyltriethoxysilane.

EFFECT: imparted moisture-resistant bioprotective properties to textile materials made from various fibers, including colored fibers.

2 cl, 1 dwg, 4 tbl

 

The invention relates to the finishing of textile materials, in particular to methods of making them bioprotective properties.

The closest analogue is the way to protect the textile material from biodegradation by impregnation of the material with a solution of biocidal ethoxytrimethylsilane General formula

(C2H5O)nIU3-nSiCH2SnR2Cl, where

a) R is ethyl, n=2 or 3;

b) R-butyl, n=1, 2, or 3

(SU 790695, class D 06 M 13/50, op. 1983).

The technical result of the invention is the making of textile materials of different fibers, including painted, bioprotective properties, resistant to wet treatments, and the expansion of the range of bioprotective materials.

This technical result is achieved by the fact that the way to protect the textile material from the biodegradation involves the impregnation solution biocidal alkoxysilanes derived 3,5-dichloro-2-(4-oxygenase)of pyridine in an organic solvent or an aqueous emulsion, drying at room temperature and heat treated at a temperature of 100-150°With or exposure at room temperature for 24 hours. The impregnation of these solutions is carried out in the presence of γ-aminopropyltriethoxysilane.

Alkoxysilane derivatives of 3,5-dichloro-2-(4-oxygenase)of pyridine are new compounds. They get condens is of 3,5-dichloro-2-(4-oxygenase)pyridine with alkoxysilane when heated with simultaneous distillation from the reaction mixture of aliphatic alcohol. Use the following alkoxysilane: hexamethoxymelamine, octadecatrienoic, decabromodiphenylethane, tetradecyltrimethylammonium, ethyl silicate-40. As a result, the compounds of General formula

where R=CH3With2H5With3H7With4H9;

m=2-6; n=1-5.

The biocidal properties of the compounds are presented in table. 1.

Example. Textile materials, including Museum exhibits of textiles, impregnated with a solution in an organic solvent or an aqueous emulsion of the compound I-V set concentration- 0,01; 0,1; 1,5; 10; 15%-Noah, followed by drying and heat treatment at a temperature of 140-150°C for 3-5 min or keeping at room temperature for 24 hours of Introducing an impregnating bath of the drug AGM (γ-aminopropyltriethoxysilane) in an amount of 0.2 to 2% by weight of the silicone allows you to replace the heat treatment at 140 to 150°drying at 100°C.

Table 2 shows the results of supplementation trials of compounds (I-V) on the growth of the test cultures in liquid medium of čapek carried out according to GOST 9048-15.

From the data of table 2 shows that compound I-V in an amount of 0.01-0.1% by weight. completely inhibit the growth of the test cultures.

In the specified processing connection I-V covalently fixed on the fiber due to condensation of alkoxygroup connection with functionalname groups of fibre-forming polymers (scheme 1).

Determination of resistance images of textile material, of wool, polyamide, polyester, cellulose, polyvinyl alcohol and other fibers treated with compounds I-V, Plesneva infection is conducted according to the methodology developed in the Winogradsky Institute of Microbiology of the Academy of Sciences of the BSSR [Dmitrieva MB Tradition and modernity // Proc. of Ecology and cryptogenic botany in Russia, Saint-Petersburg, 2000, p.106-107].

Tissue samples (2·2 cm) are sterilized in UV light for 20 min on both sides. Placed in the centre of Petri dishes on "hungry agar with 2%sucrose content. Hungry agar necessary to maintain a sufficiently high level of humidity in the Cup. The samples put sterile agar mesh with spores of fungi Ulocladium ilicis Thom and Aspergillus niger v.Teigh. After a certain period of time with each sample sterile remove one or two cells of the agar with spores under a microscope and count the number of germinated spores and celebrate the nature of their branching. These types of fungi are chosen because members of the genus Aspergillus niger among imperfect fungi activity biochemical damage to the textiles are in the first place. Conidia of Aspergillus niger can cause the death of micromycetes competing for the substrate. It is also known that the beginnings of the mycelium of Aspergillus niger are able to survive in conditions when the mycelium of other fungi species are vulnerable and die, to the ome, they are very convenient for microscopic examination. Method agar grids allows to simulate the contamination of material which is favorable for the development of microscopic fungi conditions and allows you to quickly (within 2-3 days) to determine the biological stability of the samples.

Comparison of the growth pattern in the test samples and control on nutrient medium allows us to quantitatively assess the degree of biological materials

K=T0/Tto,

where K - coefficient of slowing growth;

Ttoduration (hours) development of the dispute, until the stage of branching in the control (for bacteria Aspergillus niger and Ulocladium ilicis is 10 and 34 h,respectively)

T0- the same, in the test samples.

The K-factor shows how many times slowing the growth of bacteria in the test sample compared to the control. The higher K, the more pronounced biocidal properties of samples.

In table 3 the results of the determination of biological prototypes woolen cloth.

From the data of table 3 shows that compound I-V already in an amount of 0.01-0.1% by weight. on wool fabrics provide full 100%growth inhibition of the subjects of the test cultures and protect tissues from biodeterioration.

In addition, resistance to biodegradation determined using soil method (GOST 9.060-75) in terms of the coefficient of sustainable the STI to microbial destruction P, %.

In table 4 presents data on the sustainability of cotton fabric to microbiological destruction, treated with compounds I-V.

From the above results show that the cotton fabric is not subjected to microbiological destruction. Antimicrobial properties are maintained after 3-5 washes.

Table 1

The properties of the biocidal compounds
No.Rmnd420, g/cm3M calc. the calc.Elemental analysis, calc. / calc., %Brutto-formulaThese IR spectra ν cm-1
NSiNClORC-ClSiOCSiOSiPyridyl
ICH3211.04048039,784,3511,722,8014,5832,0C16H21Si2N1Cl2O 8740-8008101050-10801040
48239,83of 4.3811,632,9014,7132,151520-1660
IIWith2H5321.05089045,63a 4.83for 9.473,015,68increased by 28.70C34H42Si3N2Cl4O12740-8008101050-10801040
89745,524,729,393,1215,8330,101520-1660
IIIWith3H7431.070133048,575,128,583,015,7330,12C54H67Si4N3Cl6O16740-8008101050-10801040
133948,425,04 scored 8.383,1315,9030,841520-1660
IVWith4H9651.090188042,0of 5.818,733,6318,7334,3C66H111Si6N5Cl10O24740-8008101050-10801040
188242,115,948,953,7218,8634,91520-1660
VWith2H5-41.055145046,533,687,633,4719,3118,20C56H54Si4N4Cl8O17740-8101050-10801040
145146,343,757,743,8619,5618,608001520-1660

Table 2

ConnectionThe culture test
No.Concentration %Aspergillus nigerAspergillus flavusPenicillium chrysogenumUlocladium ilicis
I0.100000000
0.0111001122
II0.100000000
0.0111001111
III0.100000000
0.0100000000
IV0.1000/td> 00000
0.0100000000
V0.100000000
0.0100000000
Control

055555555
055555555

/tr>
Table 3

Biocidal activity of samples of wool fabric modified with compounds I-V determined by using the agar grids"
ConnectionAspergillus nigerUlocladium ilicis
No.The amount (% wt.)
I0,111
1,01,31,3
II0,111
1,01,41,4
III0,11,11,1
1,02,02,0
IV0,11,31,3
1,02,22,2
V0,11,21,2
1,02,12,1

Table 4

The sustainability of cotton fabric to microbiological destruction, as defined by GOST 9.060-75
ConnectionThe coefficient of resistance to microbiological degradation %
No.The amount (% wt.)Before washingAfter the 1st washAfter 3 washings
I0,189,288,9of 87.8
0,297,997,396,7
II0,188,588,0of 87.3
0,2 98,398,097,6
III0,189,488,587,7
0,299,699,098,6
IV0,187,4of 87.086,6
0,294,593,893,0
V0,188,787,686,3
0,295,194,894,3
Control050--
049--

1. The way to protect the textile material from biodegradation, including impregnation with a solution of biocidal alkoxysilanes derived 3,5-dichloro-2-(4-oxygenase)of pyridine in an organic solvent or an aqueous emulsion, drying at room temperature and heat treated at a temperature of 100-150°With or exposure at room temperature within 24 hours

2. The protection method according to claim 1, in which the impregnation of these solutions is carried out in the presence of γ-aminopropyltriethoxysilane.



 

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