Method for biocide treatment of tanning semi-finished product
FIELD: textile fabrics, paper.
SUBSTANCE: invention is related to chemical technology of fibrous materials, in particular to biocide treatment of tanning semi-finished products. Method consists in application of aqueous composition onto material with 0.035-0.09 g/l of AB katamin and potassium iodide taken in the ratio of 10:1, and 0.03-0.06 g/l of nanosize silver particles preparation. Preparation is a water dispersion with concentration of Ag+ 0.15-1.5 wt %, nanoparticle size 5-20 nm, and maximum optical density in the area of waves length of 315-540 nm. Components are applied simultaneously or serially with interval of 5 minutes at 30 C and total duration of processing of 10 minutes. Composition is applied by spraying or impregnation at roller machine, or at the stage of the last washing of semi-finished product in drum with liquid coefficient that equals 3.
EFFECT: invention provides for expansion and improvement of biocide treatment action spectrum, and also reduction of applied preparation consumption.
4 cl, 1 tbl, 3 ex
The invention relates to chemical technology of fibrous materials, in particular for the biocidal treatment of the leather and semi-finished products.
To ensure the biosecurity of natural fibers and products made of them used a variety of chemical compounds on the basis of Quaternary ammonium bases.
A method of processing natural textile materials antimicrobial aqueous composition comprising alkyldimethyl Manihari (ketamin AB) and potassium iodide (RF patent No. 2178029, publ. 10.01.2002, D06M 11/13).
The disadvantage of this method is the high consumption of biocidal products, adverse side effects occurring during operation of the finished products, environmental pollution and insufficient spectrum of antimicrobial action.
There is a method of skin treatment the introduction of ketamine HA alkyldimethylbenzylammonium on stage dyeing. This product is used as the acid corrosion inhibitor (patent RF 2096468, 20.11.1997, D06P 3/32).
The known method anti musty skin treatment impregnation its water-soluble antiseptic copolymer NjN-dimethyl -, N,N-diallylammonium with sulfur dioxide (RF patent 2151193, 20.06.2000, SS 9/00). The disadvantage of this method is the high consumption of anti musty preparation, insufficient spectrum of antimicrobial action.
There is a method of anti-Christ. mikrobnoi material handling according to which the polymer substrate is cleaned with chemicals and washed with water. Then treated with an aqueous solution of tin, washed from excess salt water and treated with an aqueous solution of silver salts in the presence of a reducing agent. You get a thin layer containing silver nanoparticles. The resulting layer is stabilized in the solution containing the chlorides of gold or platinum metals, washed and dried in air (U.S. patent No. 6224983, publ. 01.05.2001).
The disadvantage of this method is the high cost of the material obtained, the use of chemical reducing agents in the process of obtaining, because of what the process is unstable.
The closest analogue of the claimed method is a method of liquid treatment of leather prefabricated, includes the processes of fatliquoring and antimicrobial treatment with the consumption of antimicrobial drug to 4% by weight of the semifinished product. As of antimicrobial drug use acidifier - 1,5-2,0%, 2,4,5-trichlorophenol - 0,75-1,0% or inhibitor of wood-resin 3-4%. The processing time of 2-3 hours at a volume ratio (LCD) - 1 and a temperature of 45-50°C ("uniform method of production of Russian leather footwear and saddlery frominternational tanning of the hides of cattle for delivery by state order". M: cniitei Legprom, 1987).
The disadvantage of the method which is the high consumption of antimicrobial drug and the narrow range of its validity.
The technical task of the invention is the improvement and expansion of the spectrum of biocidal treatments and reducing the consumption of the drug.
The problem is solved due to the fact that the biocidal treatment of leather prefabricated carried out by applying to him aqueous composition containing a 0.035-0.09 g/l of catamine AB and potassium iodide, taken in the ratio of 10:1, and 0.03-0.06 g/l of the preparation of nanoscale silver particles in aqueous dispersion with a concentration on Ag+of 0.15-1.5 wt.%, pH 8-9, the particle size of 5-20 nm, and the maximum optical density in the wavelength 315-540 nm, with liquid ratio equal to 2, the components of the composition applied simultaneously or sequentially with an interval of 5 minutes.
Antimicrobial treatment is carried out or when the last water washing of the cake mix in the drum when liquid ratio (LCD) - 2, or by applying a biocidal composition on the front surface of the semi-finished product to the spray unit, or application at the entrance roller ginning machine with a flow rate of 90-120 g/m2on the semi-finished product from raw pork and 100-120 g/m2on the semi-finished cattle.
The method is as follows.
Semi-finished leather, designed for Shoe lining from raw materials of bovine or swine, after the process is dyeing, the fatliquoring and the 1st wash, at the stage of the 2nd rinse treated with an aqueous composition of a biocidal product, including the water dispersion of silver nanoparticles with a concentration of 0.03-0.06 g/l in the biocidal product, counting on the dry residue and the aqueous solution of catamine AB and potassium iodide at a ratio of 10:1 with a concentration of a 0.035-0.09 g/l in the biocidal product, counting on the dry residue of the drug. The treatment is carried out at a temperature of 30°C for 10 minutes Then after aging and spin - wiring the semi-finished product is dried in a free state to a moisture content of 14-16% in accordance with the method of production of leather for Shoe lining.
Possible application of the biocide composition on the front surface of leather prefabricated by sputtering technique or application at the entrance roller ginning machine, followed by aging and drying to a moisture content of 14-16%.
The invention is illustrated by the following examples.
Example 1. The processing of leather and chrome semi perform in hanging dryer with LCD - 2 and a temperature of 30°C. After dyeing, fatliquoring and the first rinsing water is drained. At the stage of the 2nd washing in the drum with a half-filled water to the LCD - 2 and enter the water dispersion of silver nanoparticles with a concentration on Ag+to 0.15 wt.% and pH 8-9 to a concentration of 0.03 g/L. the rotation of the drum is provided by 5 min, after which the injected water is the solution catamine AB and potassium iodide to the total concentration of biocidal drug 0.11 g/l, counting on the dry matter. The rotation of the drum carried out for another 5 min and produce plums. After aging, and the spin-wiring the semi-finished product is dried in a free state to a moisture content of 14-16%.
Example 2. Processing of leather prefabricated perform in the drum when the LCD - 2, a temperature of 30°C. In the dryer with a half-filled water to the LCD - 2 and injected sequentially aqueous dispersion of silver nanoparticles with a concentration of Ag+1.5 wt.% to a concentration of 0.06 g/l and water system katamin AB + potassium iodide to the total concentration of biocidal components in a solution of 0.15 g/l, counting on a dry residue. The rotation of the drum carried out for 10 minutes, then drain as in example 1.
Example 3. Processing of semi-finished leather produced in roller ginning machine application biocidal composition comprising 0.03 g/l of the preparation of nanoscale silver particles with the concentration of Ag+ to 0.15 wt.%, water system katamin AB and potassium iodide with a concentration of 0.035 g/l Consumption for semi-finished cattle - 100-120 g/m2. Consumption of semi-finished product from raw pork 90-100 g/m2. The time of impregnation 2 minimum Temperature of 30°C. Further processing is carried out in accordance with example 1.
The investigation of the antimicrobial properties were carried out on samples of materials containing in the structure of silver nanoparticles and cluster catamine AB with potassium iodide.
ispolzovalis strains of the bacteria Staphylococcus aureus and Escherichia coli, which was applied to the samples at the rate of 104SOME 1 cm2square. Samples with high humidity of 90% was placed in a thermostat at 37°C for 2 and 7 days. After sowing with a dense nutrient medium (TSA, trypticase-soy agar) samples were incubated 48 h at 37°C.
The results are presented in the table.
|Comparative characteristics of the biocidal activity of the leather for Shoe lining treated with compounds.|
|Example||The amount of the compound mass, % (active part) is added to semi-finished leather||The content of the test cultures of bacteria on the skin samples, SOME on 1 cm|
|Staphylococcus aureus||Escherihia coli|
|2 day||day 7||2 day||day 7|
|1||0,039||not detecting.||not detecting.||not detecting.||not detecting.|
|2||of 0.066||not detecting.||not detecting.||not detecting.||not detecting.|
|3||0,003||not detecting.||not detecting.||not detecting.||not detecting.|
|Prototype: 2-oxydiethanol 2,4,5-trichlorophenol inhibitor wood-resin||1,5-2,0|
1. The way the biocidal treatment of leather prefabricated coating material aqueous composition containing a 0.035-0.09 g/l of catamine AB and potassium iodide, taken in the ratio of 10:1, and 0.03-0.06 g/l of the preparation of nanoscale silver particles in aqueous dispersion with a concentration on Ag+of 0.15-1.5 wt.%, the particle size of 5-20 nm and the maximum optical density in the wavelength 315-540 nm, and the components of the composition applied simultaneously or sequentially with an interval of 5 min at 30°C and the total processing time 10 minutes
2. The method according to claim 1, characterized in that the aqueous composition is applied on the front surface of the semifinished product by spraying method.
3. The method according to claim 1, otlichalis the same time, that the aqueous composition is applied to the material application on the value of the car at a flow rate of the water composition 90-100 g/m2on the semi-finished product from raw pork and 100-120 g/m2on the semi-finished cattle.
4. The method according to claim 1, characterized in that the aqueous composition is applied to the material during its last washing in the drum with liquid ratio equal to 3.
FIELD: textile, cotton.
SUBSTANCE: invention relates to the textile industry in particular, to the technology of the final softening of the linen dressing. It describes the enlymatic method of final softening of the linen dressing that includes enzymatic procession of the linen by covering the straightened linen with the solution of multienzyme preparation with the indicator the enzyme activity, in un/ml: endopolygalacturonase - 15-40; α-L- arabinofuranosidase - 12-20; endoxylanase - 20-35; exoxylosidase - 0.7-1.5; pectinesterase - 1.5-7.5; exopolygalacturonase - 0.4-2.5; endogalactanase - 15-25; exogalactosidase - 0.8-1.7; exoglucanase - 1.0-1.9, with the addition of 15-30 g/l of sodium bicarbonate and complexon on the basis of aminopolycarboxylic acids at 40-50°C temperature, further holding of the linen during 30-40 min.; steam procession at 98-105°C during 5-7 min.; and procession at the needle carding machine to form the structure of the ready linen. Covering the linen with the solution of multienzyme preparation is made either by the method of fluid soaking with the additional weight after wringing for 95-100% or applying gas and fluid foam with the additional wet weight for 25-40%.
EFFECT: invention helps to add the softening napping effect to the linens, to increase the durability of the material and elasticity of the fabric; to decrease accumulation of irreversible deformation after its repeated stretching; to improve the ability to drape; to decrease general colour difference ΔE to the level of visually undefined deflections not exceeding 1,0 un.
3 cl, 2 dwg, 1 tbl, 4 ex
FIELD: textile, paper.
SUBSTANCE: invention concerns method of flaxen roving preparation for spinning and can be applied in textile industry. Method of enzyme and peroxide preparation of highly lignified flaxen roving for spinning involves deacidification, enzyme processing at 40-50°C for 90-95 minutes by polyenzyme preparation solution with enzyme activity indicators, units per ml: endopolygalacturonase - 20-25; pectinesterase - 2.5-4.7; protease - 0.2-0.3; exopolygalacturonase - 0.6-0.1; exogalactosidase - 0.2-0.4; exoxylosidase - 0.3-0.5; and exoglucanase - 0.6-0.8. Further the roving is heated to the boiling point and matured for 20-25 minutes, flushed by water and processed for 90-95 minutes in alkaline peroxide solution at hydro peroxide concentration of 0.6-0.8 g/l of active oxygen and total alkalinity of 6.5-7.0 g/l rated per caustic soda. Then the roving is flushed with detergent and water and undergoes counter-microbe processing.
EFFECT: fiber whitening degree enhanced up to 54-56%; obtainment of thin yarn meeting the requirements for both "1 high-flaxen" and "1 high tow" grades by GOST 10078-85 in line density and line density and tear load variation rates; reduced yarn tear rate in weaving process to 40-50 tears for 100 spindles per hour; enhanced yarn strength in 1,2-1,4 times; improved esthetics of woven canvas exterior.
1 tbl, 3 ex
FIELD: textile, paper.
SUBSTANCE: invention concerns method of flaxen roving preparation for spinning and can be applied in textile industry. Method of enzyme and peroxide preparation of flaxen roving for spinning involves deacidification performed before enzyme processing for 90-95 minutes by polyenzyme preparation solution with enzyme activity indicators, units per ml: endopolygalacturonase - 20-25; pectinesterase - 0.8-4.7; protease - 0.2-0.3; and exopolygalacturonase - 0.2-0.4. Further the roving is flushed by water and processed for 90-95 minutes in alkaline peroxide solution at hydro peroxide concentration of 0.4-0.5 g/l of active oxygen and total alkalinity of 6.5-7.0 g/l rated per caustic soda, then flushed with detergent and water and undergoes counter-microbe processing.
EFFECT: reduced tear load in moist unprocessed roving up to 50-61%; obtainment of thin yarn meeting the requirements for 1 grade in thickness and stability of physical and chemical yarn properties; enhanced yarn strength in 1,2-1,4 times; improved esthetics of woven canvas exterior.
1 tbl, 3 ex
FIELD: textile, paper.
SUBSTANCE: invention concerns methods of flax fiber dyeing and preparation for spinning and can be applied in textile industry. Combined method of dyeing and preparation for spinning involves deacidification, processing by digester dye solution for 90-95 minutes at 40-50°C, the solution including vat colour, sodium bicarbonate, sulfonol NP-3 and anhydrous synthanol, polyenzyme preparation with enzyme activity indicators, units per ml of solution: endopolygalacturonase - 20-40; pectinesterase - 2.5 - 8.0; protease - 0.2-0.4; exopolygalacturonase - 0.6-1.5; exogalactosidase - 0.3-0.5; exoxylosidase - 0.3-0.8; exoglucanase - 0.4-1.0. Further the mass is heated to the boiling point, matured for 30-60 minutes, flushed by cold water. Oxidising processing is performed for 15-25 minutes at 20-25°C in stabilised peroxide solution including 0.3-0.4 g/l of hydro peroxide (100%), 1-2 g/l of laundry soap, and alkaline agents to comprise total alkalinity of 5.5-6.0 g/l rated per caustic soda, with further heating for 20-50 minutes to 95-100°C and maturing for 20-30 minutes, followed by double flush with detergent first and with water next, and further deacidification at 45-50°C for 15-20 minutes and flushing.
EFFECT: reduced irregularity of geometrical parametres and durability of flax semiproducts; improved colorability and colour evenness of textile semiproducts; more environment-friendly process and improved labour health.
1 tbl, 3 ex
SUBSTANCE: filter is made of nonwoven fabric and/or injected filter structures or sheets, i.e. produced after processing the synthetic artificial fibres. At first fibres are processed with antibacterial compounds and sliced to monothreads. Natural, artificial, synthetic, metal fibres or their mixtures are used. Web and felt are formed from these threads. Required number of nonwoven fabric layers is connected, thereafter processed, sliced and rolled.
EFFECT: extended application of aforesaid filters, improved wetting and filtering ability ensured.
31 cl, 16 dwg, 11 ex
SUBSTANCE: invention relates to using zinc sulfide in articles possessing N antibacterial and antifungal activity. In particular, it can be used in preparing any product able to interact with microorganisms and/or fungi, such as dress, carpets, curtains, bed affiliations and textile materials used for medicinal aims.
EFFECT: valuable properties of articles.
6 cl, 8 tbl, 7 ex
FIELD: medical engineering.
SUBSTANCE: device has gauze fabric manufactured from synthetic fibers coated with bioresorbable biocompatible polymer poly-3-hydroxybutirate.
EFFECT: improved gauze endoprosthesis biocompatibility properties.
FIELD: textile industry, in particular, controlling of yarn processing with enzymes in manufacture of textile materials.
SUBSTANCE: method involves processing single-twist flax-containing yarn comprising 5-50% of short flax fibers with wool and/or synthetic filaments with the use of known amounts of enzymes and conditioning; thereafter, finding out dependence between flexural rigidity defined on the basis of labor consumed for deformation at constant speed of samples of predetermined length against surface having constant curvature, sample length and curvature radius, and averaged on n samples, and number of twists until rupture occurs in direction corresponding to initial twisting of yarn, said parameters being measured after preliminary stretching of samples; measuring number of twists until rupture occurs in indicated manner; determining, on the basis of found out dependence, flexural rigidity corresponding to measured number of twists until rupture occurs.
EFFECT: increased operational efficiency and simplified evaluation of flax-containing yarn for flexural rigidity after processing of individual batches with enzymes at different times in apparatus having single charging volume substantially smaller than amount of basic yarn, and retention of flexural rigidity quality due to yarn twisting until rupture occurs.
5 dwg, 4 tbl
FIELD: antiparasitic agents.
SUBSTANCE: invention relates to novel use of zinc sulfide as antitick agent and can be used in agriculture, in gardens, forestry, medicine, textile industry, and also in human protection. Zinc sulfide is used as additive, in particular, to polymer compositions and threads, fibers, filaments, and filament products obtained from these compositions. Agent is introduced into liquid and solid compositions for cleaning and/or treating textile pile surfaces or pierced pile surfaces, in particular tappets and mokets.
EFFECT: expanded resource of antiparasitic agents.
11 cl, 29 tbl, 10 ex
FIELD: textile base contacting with skin and adapted for producing of cosmetic and rejuvenating effect.
SUBSTANCE: method involves producing stockings, panty-hose or any textile base contacting directly with skin and impregnated with slow-release natural substances by providing following steps: coloring said textile base; treating for imparting softness thereto by introducing combination of biomimetic phospholipids into common bath-tab, said combination including phospholipids GLA-borageamidopropyl PG-dimoniumchloride sodium phosphate in an amount constituting 1.5% of bath volume, phospholipids PCT - cocoamidopropyl PG-dimonium chloride phosphate in an amount constituting 1.5% of bath volume, said combination of phospholipids components facilitating in "attachment" of or impregnation with active substances through electrostatic process and being also antibacterial agent facilitating in regulation of bacterial flora; adding natural active substances to said two phospholipids components, with total amount of natural active substances constituting less than 2.10% of bath volume. Said step of imparting softness or impregnation step is carried out during about 35 min at temperature of from 35 C to 37 C. Natural active substances are found in algae extracts or iris family extracts.
EFFECT: enhanced cosmetic and rejuvenating effect.
8 cl, 1 dwg, 1 ex
FIELD: textile, cotton.
SUBSTANCE: this invention refers to the chemical technologies of the textile materials in particular, to the production of the formaldehyde-free compositions for the final trimming of the cellulose decomposing textile materials. The composition includes in g/l: 80-120 of othexide BPh-diglycol ether 1,3 - dimethyl- 4,5- dihydroxyethylene of the carbamide, 5-8 catalyst agent for the resinification including magnesium chlorides - the natural bischofite solution extracted by the underground dissolution of the chlorine magnesium salts, 2-4 of aluminium nitrate, 2-5 cloridealkyldimethylbenzyl ammonium and water up to 1 litre.
EFFECT: this invention allows to make the cellulose decomposing textile materials sanforised, decrease the tendency to be crumpled, decreases the strength losses, reduce power inputs due to the exclusion of the thermal treatment operation and reduction of the drying temperature (the final section 130°C), and to improve the stability of the composition and environmental security.
1 tbl, 9 ex
SUBSTANCE: low-formaldehyde composition for said conditioning contains, in g/l, 100-120 - otexide-"НФ" - methyl ether of dimethylolhydroxyethyleneurea, 1-3 aluminium chloride, 1.5-3 aluminium nitrate, 1-5 polymer-2,2-diamide-N,N,N-trimethyl-3-(1-oxo-2-propenyl)ammoniumaminopropaneammonium chloride and water to 1 l.
EFFECT: invention allows for reducing crease retention in materials, increasing shrink resistance, reducing weakening of material and cutting on power consumption through exclusion of thermal processing and lowering of drying temperature.
1 tbl, 6 ex
FIELD: chemistry; textile.
SUBSTANCE: composition for fabric softening includes a mixture, which contains from about 15 to about 65% in terms of the whole mass of the mixture quaternised ester of triethanolamine and about 35-85% in terms of the whole mass of the mixture quaternised ester of methyldiethanolamine, which possesses alkylated quaternised monoester, equal to about 10% or more.
EFFECT: improvement in the fabric softening capability.
20 cl, 2 ex
FIELD: textile industry, medicinal disinfection, household chemistry.
SUBSTANCE: the present innovation deals with technology for manufacturing insecticidal preparations for controlling insects - keratophages - clothing, fur coat, fur, felt and carpet moth and skin beetles. The suggested insecticidal preparation contains 0.01-60% weight of quaternary ammonium salt - clathrate didecyldimethylammonium bromide and, possibly, ethanol or isopropyl alcohol and a pH regulator.
EFFECT: higher efficiency of application.
2 ex, 1 tbl
FIELD: organic chemistry, antiseptics.
SUBSTANCE: invention relates to antiseptic preparations designated for biochemical protection of cellulose-containing materials, in particular, wood against fungi blue rot and mold during transportation and drying and for temporal protection against wood-decomposing fungi under conditions of periodically passing wetting. Antiseptic based on compounds of quaternary nitrogen comprises as an active component 1,1-dimethyl-1-alkylhydrazinium chlorides of the formula (I) . Antiseptic working solution contains 0.5 wt.-% of active component, not less. Antiseptic elicits high degree of activity and effective against fungi blue rot, mold and wood-decomposing fungi simultaneously.
EFFECT: enhanced effectiveness and valuable properties of antiseptic.
2 cl, 1 tbl, 3 ex
FIELD: technological processes.
SUBSTANCE: invention is related to technology for production of metalised woven and nonwoven materials, and may be used for production of catalysts, and also for production of decorative and finishing materials. Method includes previous chemical activation of coated material surface, using as activator glyoxal acid and/or oxalic acid. Then chemical metallisation is carried out, which is realised from solution containing bluestone. Stabiliser used is tetraethylene glycol, and reducer - glyoxal. Sodium hydroxide is used in solution to maintain required acidity.
EFFECT: invention provides for production of metalised dispersed woven and nonwoven materials using simplified technology, with simultaneous cheapening and provision of production safety due to use of proposed ingredients and their certain ratio.