Method for producing of antimicrobial non-woven textile materials

FIELD: textile industry, in particular, production of non-woven textile materials based on synthetic filaments and mixtures thereof, in particular, materials containing antimicrobial organosilicon preparation.

SUBSTANCE: method involves introducing polymer filament modifier into non-woven textile material, said modifier being antimicrobial organosilicon preparation in the form of alcoholic solution of oligoethoxysiloxane condensation product with alkyl ether of 4-hydroxybenzoic acid. Method allows stable antimicrobial properties to be imparted to textile material.

EFFECT: increased stability of antimicrobial properties and improved operating parameters of non-woven textile material.

1 dwg, 2 tbl, 9 ex

 

The invention relates to non-woven textile materials based on synthetic fibers and their blends and organic drug that has antimicrobial properties.

Known composition for imparting antimicrobial properties of nonwoven textile materials used for the manufacture of medical service is disposable and medical dressing materials containing katamin AB, antimicrobial drug is selected from the group of: potassium iodide or n-sulfamethoxazolerimethoprim sodium, or Idina, and water (EN 2178029 C1 (Moscow state University of design and technology), 10.01.2002).

Known non-woven textile material for clothing and protective medical clothing for short-term use of this material, containing a bactericidal drug is selected from the group: ketamin AB, chlorine-hexidine of digluconate, 5-nitrofurantoin (EN 2159825 C1 (open joint stock company "Scientific research Institute of non-woven materials"), 27.11.2000).

However, proposed in these patents biocides effective only for antimicrobial textile materials one-time or short-term use, as they are not resistant to wet treatments and decay during long-term storage of finished products.

Known non-woven textile material of the processed ol is getaxis-butoxysilane synthetic fibers (EN 2182614 C1 (Moscow state textile University. An Kosygin), 20.05.2002), which also has antimicrobial properties; however, the antimicrobial properties of the specified drug is an order of magnitude (10 times) lower than the antimicrobial properties of the claimed compounds.

The closest proposed method is a method of making cellulosic material with antimicrobial properties due to its processing organosilicon compound (SU 1164345 (HE the Roskin and others), 30.06.86). However, such a composition is a very complex mixture consisting of polydimethylsiloxane with N-vinyl pyrrolidone, hardener by methyltriacetoxysilane or tetraethoxysilane with octoate tin and optionally containing iodine and nitrofurantoin. Such multicomponent mixtures are highly toxic and very difficult to use in the manufacture of large quantities of antimicrobial fibrous materials.

The technical task to be solved by the invention is the obtaining of non-woven textile material, which, while maintaining high performance nonwoven material formed using traditional techniques (needle, stitch-bonding, hydro and others), would have sustained antimicrobial properties.

This object is achieved due to the fact that the method of producing antimicrobial nonwoven textile mA the materials, containing synthetic fibers or mixtures thereof, including the processing of organosilicon antimicrobial drug, characterized in that the organosilicon antimicrobial drug use alcohol solution of the product of condensation of oligodeoxythymidine - ETS-40 with alkilany ether 4-hydroxybenzoic acid - 4-organotransition:

- oligotex(methylcarbaniloyloxy)siloxane (I) (C26H52Si4O15, BP. above 300°/760 mm; nd201,4310; d4201,1402; found, %: C 43,10; N 7,15; Si 16,0; M 717; calculated, %: C 43,55; N 7,31; Si 15,67; M 716);

- oligotex(ethylcarboxylate)siloxane (II) (C27H54Si4O15, BP. above 300°/760; nd201,4325; d4200,8782; found, %: From 44.5; H 7,15; Si 15,81; M 731; calculated, %: 44,36; N 7,45; Si shed 15.37; M 730);

- oligotex(profilerexitproc)siloxane (III) (C28H56Si4O15, BP. above 300°/760; nd201,4361; d4200,8781; found, %: C 45,3; N 7,71; Si 15,31; M 745; calculated, %: C 45,14; N 7,58; Si 15,08; M 743);

- oligotex(butylcalixarenes)siloxane (IV) (C29H58Si4O15, BP. above 300°/760; nd201,4432; d4200,8922; found, %: C 45,93; N 7,83; Si 15,17; M 759; calculated, %: 45,89; N 7,70; Si 14,80; M 758);

- oligometastasis(methylcarboxamidine the si)siloxane (V) (C 32H54Si4O17, BP. above 300°/760; nd201,4593; d4200,9489; found, %: C 47,01; N for 6.81; Si 13,89; M 824; calculated, %: C 46,66; N 6,56; Si 13,61; M 823.

- oligosacharide(ethylcarboxylate)siloxane (VI) (C48H66Si4O27, BP. above 300°/760; nd201,4624; d4200,9578; found, %: C 54,78; N. of 6.71; Si 10,88; M 1062; calculated, %: C 54,29; N 6,22; Si 10,56; M 1061, in the following ratio of ingredients, wt.%:

These fibers or mixtures thereof70,0-99,0
Organosilicon antimicrobial drug1,0-30,0,

and carry out the subsequent drying of the fibers at room temperature and heat treated at 100-140°C for 5-20 minutes

As the alcohol solution can be used ethyl, propyl or butyl solutions. Mainly for the production of solution is used ethyl alcohol.

The invention is illustrated by the following examples.

Example 1. On formed of polyamide fibers 0,40 Tex, length 65 mm canvas weighing 80 g/m2spray painted with alcohol (acetone) solution of oligotex(methylcarbaniloyloxy)-siloxane (I), the amount of which is 30,0% (wt.) the weight of the fibers; fibrous canvas is isusually in air at room temperature and subjected to heat treatment at 130° C for 15 minutes

From the processed canvas punched on the stand with a density of perforations 100·104m-2get a non-woven material.

Example 2. On formed from polyester fibers 0.33 Tex, length 65 mm canvas surface density of 100 g/m2spray painted alcoholic solution of oligotex(ethylcarboxylate)-siloxane (II), the amount of which is 6.0% (wt.) the weight of the fibers; fibrous canvas is dried in air at room temperature and subjected to heat treatment at 100°C for 20 minutes

From the processed canvas punched on the stand with a density of perforations 100·104m-2get a non-woven material.

Example 3. On formed from polyester fibers 0.33 Tex, length 65 mm canvas surface density of 100 g/m2spray painted alcoholic solution of oligotex(ethylcarboxylate)-siloxane (II), the amount of which is 1.0% (wt.) the weight of the fibers; fibrous canvas is dried in air at room temperature and subjected to heat treatment at 130°C for 10 minutes

From the processed canvas punched on the stand with a density of perforations 100·104m-2get a non-woven material.

Example 4. The nonwoven material "Muliples" weighing 100 g/m2/sup> made of polyamide fibers 0.31 Tex, length 65 mm, spray painted alcoholic solution of oligotex(profilerexitproc)siloxane (III), the amount of which is 6.0% (wt.) the weight of the fibers; fibrous canvas is dried in air at room temperature and subjected to heat treatment at 140°C for 5 minutes

Example 5. On needle-punched non-woven fabric weighing 75 g/m2and density of perforations 100·104m-2consisting of polyester fibers 0.33 Tex, length 65 mm, spray painted alcoholic solution of oligotex(butylcalixarenes)siloxane (IV), the amount of which is 5.0% (wt.) the weight of the fibres; non-woven material is dried in air at room temperature and subjected to heat treatment at 100°C for 15 minutes

Example 6. On needle-punched non-woven fabric weighing 75 g/m2and density of perforations 100·104m-2consisting of polyester fibers 0.33 Tex, length 65 mm, spray painted alcoholic solution of oligotex(butylcalixarenes)siloxane (IV), the amount of which is 2.0% (wt.) the weight of the fibres; non-woven material is dried in air at room temperature and subjected to heat treatment at 140°C for 5 minutes

the example 7. The nonwoven material weighing 75 g/m2made water-jet method, consisting of polyester fibers 0.33 Tex, length 65 mm, spray painted with an alcohol solution oligometastasis(methylcarbaniloyloxy)siloxane (V), the amount of which in solution is 30,0% (wt.) the weight of the fibres; non-woven material is dried in air at room temperature and subjected to heat treatment at 130°C for 10 minutes

Example 8. The nonwoven material weighing 75 g/m2made water-jet method, consisting of polyester fibers 0.33 Tex, length 65 mm, spray painted alcoholic solution of oligoether(ethylcarboxylate)siloxane (VI), the amount of which in the solution is 1.0% (wt.) the weight of the fibres; non-woven material is dried in air at room temperature and subjected to heat treatment at 140°C for 5 minutes

Example 9. The nonwoven material weighing 75 g/m2made water-jet method, consisting of polyester fibers 0.33 Tex, length 65 mm, spray painted alcoholic solution of oligoether(ethylcarboxylate)siloxane (VI), the amount of which in solution is 30,0% (wt.) the weight of the fibres; non-woven material is dried in air at room t is mperature and heat-treated at 100° C for 20 minutes

Tests of modified organosilicon antimicrobial drug of fibers, fabrics and textiles showed that treatment with compound (I-VI) actively protects them from biodegradation by microorganisms (see table 1, 2). Antimicrobial properties are enhanced after washing and are retained on the fibers, fabrics and textiles to 20-25 washes depending on the amount of organic modifier on the fiber (see drawing).

td align="center" namest="c4" nameend="c5"> 0,23td align="center" namest="c6" nameend="c8"> 0,026
Table 1

Antimicrobial activity of the preparation containing toxicophore 4-organosilsesquioxane fragments (I-VII)
MicroorganismsConcentration in the analytical sample*, wt.%
IIIIIIVIV
S.typhi0,470,230,210,300,19
E. coli0,850,230,210,650,76
.aureus0,850,110,650,026
Pr.vulgaris0,470,230,110,300,10
Ps.aeruginosa0,850,9811,880,651,60
Asp.niger0,230,090,040,150,04
Ph.nigricans0,120,0550,0270,090,012
Ch.globosum0,120,0550,0120,090,006
Tr.interdigitale0,0190,0180,0090,010,04
C.albicans0,230,0250,0260,110,026
Sacc.cerevisal0,230,110,110,012
* Analysis performed by the method of GOST 9.048-75. Technical articles. Test method for resistance to fungi. - M.: Publishing house of standards, 1977.
Table 2

Sustainability holstering nonwoven material with antimicrobial properties to microbial destruction*
Polypropylene fiberThe content of compound III**, wt.%The stability factor P,%
The temperature of processing fibers
-100°130°140°
057
1,075787983
6,2576848378
10,078878482
30,077828078
The content of the mixture of compounds I and III (4:1), wt.%
2,578818284
6,2576807981
10,079787579
Polyester fiberThe content of compound III, wt.%
066
1,077817881
6,2579 808279
10,081838476
30,080838781
The content of the mixture of compounds I and III (4:1), wt.%
1,079778379
6,2580818382
1078798583
* Test performed according to GOST 9.060-75.
** Similar results were obtained when using drugs I, II, IV, V, VI.

Method of producing antimicrobial non-woven textile material containing synthetic fibers or mixtures thereof, including the processing of organosilicon antimicrobial preparato is, characterized in that the organosilicon antimicrobial drug use alcohol solution of the product of condensation of oligodeoxythymidine ETS-40 with alkilany ether 4-hydroxybenzoic acid in the following ratio of ingredients, wt.%:

These fibers or mixtures thereof70,0-99,0
Organosilicon antimicrobial drug1,0-30,0

and carry out the subsequent drying of the fibers at room temperature and heat treated at 100-140°C for 5-20 minutes



 

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