Method of obtaining polysaccharide material |
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IPC classes for russian patent Method of obtaining polysaccharide material (RU 2392972):
 Method to produce threads from aromatic polyamide / 2382124
Proposed method comprises preparing spinning solution during production of polymer consisting only of aromatic polyamide, aromatic diamine, aromatic diatomic chloride and polymerisation solution fed into reactor (20), mixing them by mixer arranged inside reactor (20). Said mixer consists of rotor (3) driven by motor (2) and comprising multiple pins (3a); and stator (4) with multiple pins (4a). Note that rotor rpm is adjusted to vary from 10-fold to 100-fold rate of feed of aromatic diatomic chloride and aromatic diamine in polymerisation solution into reactor (20). Uniform and homogeneous polymerisation are effected over the entire space of polymerisation reactor (20) that results in reduction of deviances in polymerisation degree, since polymer monomers are mixed together to produce their good interaction directly after introducing them into reactor (20). Now the solution is forced through spinnerets.
Method of receiving of thin-filament cellulose filament / 2371526
Method is provided for receiving of cellulose filament, consisting of ultrafine filaments and used at manufacturing of filter fabric for filtration of blood and its components against white blood cells. According to the method it is implemented extrusion of spinning solution, stretch extraction of nascent yarn, post reduction, washing, drying and acceptance of filament. Extrusion is implemented at effluence rate of spinning solution 14.1 ÷ 19.0 m/min and extrusion 7.4 ÷ 39.0 % with receiving of filament, consisting of ultrafine filaments of linear density less than 0.039 tex. Squeezed after washing filaments with zero twist are formed into total tow of linear density 5.5 ÷ 7.2 ktex, it is dried up to humidity 20 ÷ 50% and is accepted in the form of flat tape into receiver tank. In the implementation version squeezed after washing single parallel oriented with zero twist are dried up to humidity 6 ÷ 19 %, it is formed into total tow of linear density 5.5 ÷ 7.2 ktex, it is embossed and accepted in the form of three-dimensional tow. Washing of filaments is implemented by countercurrent in three stages by soften water.
 Unit for producing of high-strength viscose cord / 2301851
Unit for producing of high-strength viscose cord has mechanism for blocked lifting of encapsulation shield and forced drawing ventilation valve, air duct for forced drawing ventilation equipped with valve, air duct for removal of air-vapor mixture from first plasticizing bath pipes, encapsulation shield positioned at side where thread is formed, transverse and longitudinal partitions, thread forming set of equipment, air duct of permanently functioning drawing ventilation system and encapsulating shield positioned at side where drawing, collecting and transportation of thread are performed. Each of encapsulation shields has carcass formed as parallelepiped defined by front and rear walls of panel, each made U-shaped. There is slit-type perforation on front wall, with perforation coefficient being accepted equal to or exceeding 0.25. Panel walls are fixed with respect to one another by means of vibration damping covers. Noise-absorbing material of noise-damping members is made in the form of plate made from basalt-base mineral wool, or mineral wool, or basal wool, or glass wool with glass wool facing, or foamed polymer such as polyethylene or polypropylene. Noise-absorbing member is faced over its entire surface with acoustically transmitting material.
 Spinning machine for staple viscose fiber / 2301850
Spinning machine for staple viscose textile fiber comprises two single-sided spinning machines with sections at each side, and has set of fiber forming equipment, encapsulating shield, mechanism for blocked lifting of shield and enhanced suction valve, enhanced suction air tube, valve with hydraulic gate, and permanent suction air duct. Internal vibration isolation system for spinning machine has flexible members made from solid elastomer or wood. Vibration isolation system for frame of machine has flexible members extending along edge of machine to join said frame with foundation block. Rigidity of internal isolation flexible members of machine exceeds by 3-5 times the rigidity of flexible members joining machine frame to foundation block.
 Spinning machine for viscose textile threads / 2301849
Spinning machine for viscose textile threads comprises set of spinning equipment, space formed under capsule, encapsulating shields, permanent and enhanced suction air pipes. Each of encapsulation shields has carcass formed as parallelepiped defined by front and rear panel walls, each of which being made U-shaped. Slit-type perforation is provided on front wall, with perforation coefficient being accepted as equal to or exceeding 0.25. Panel walls are secured to one another by means of vibration damping covers. Sound absorbing material of sound absorbing member is made in the form of plate from basalt-base mineral wool, or mineral wool, or basalt wool, or glass wool faced with glass felt, or foamed polymer such as polyethylene or polypropylene. Sound absorbing member is faced over the entire surface thereof with acoustically transmitting material.
 Method for producing of filaments from optically anisotropic spinning solution and spinning apparatus with air slit / 2300580
Method involves extruding spinning solution through spinneret comprising spinning zone with a plurality of spinning apertures; filaments produced are then directed into slit or diaphragm placed within coagulation bath, configuration of said bath being defined by plates with upper sides and lower sides. Upper sides of plates are determined as sides having shortest distance to spinning zone. Line passes through spinning zone center and perpendicular to upper sides, and passes at a distance from parallel line through center of slit or diaphragm. Projection of slit or diaphragm is sized and configured approximately similar to projection of spinning zone. Surface of upper side of one plate is spaced from spinning zone center by shorter distance than surface of upper side of other plate, and line is spaced from plate border by shorter distance than to the border of plate.
Method of production of the fine filament cellulose thread / 2283375
The invention is dealt with chemical industry and medicine, in particular, with the method of production of the fine filament cellulose thread with the superfine filaments and may be used in production of filter materials for filtration of the blood and its components. The method of production of the fine filament cellulose thread is characterized according to the invention by the fact, that the molding process is realized at the outflow of the spinning solution with the speed of 10.5 - 11.5 m/minute and with the drawdown of 40-70 % with production of the superfine filaments of the linear density less than 0.05 tack. The plasticization drawdown makes 70-90 %. The filament washdown is conducted in four stages using the soft water. The filament is subjected to spinning of 40-50 rounds per a minute. The technical result of the invention is production of the cellulose threads out of the superfine filaments of the linear density less than 0.05 tack.
 Method and a device for transportation without stretching of continuously molded bodies / 2250941
The invention presents a method of production of extruded cellulose continuously molded bodies from a spinning solution consisting of cellulose, water and tertiary aminoxide. To improve textile properties of extruded continuous molded bodies, as compared with existing level of engineering, the invention provides, that between an extrusion aperture of the die and the product removal device the continuous molded body is transported by a conveyor practically without stretching. At that it is preferable, that the speed of the intermediate conveyor motion should be less than the speed of extrusion and the speed of the product removal device. Due to these measures it is possible to improve considerably such textile properties as strength in a loop and a tendency to fibrillation.
The method of forming fibers from a dispersion of poly(tetrafluoroethylene) and related polymers / 2186889
The invention relates to a method of forming fibers from a dispersion of poly(tetrafluoroethylene) or related polymers or molding of the variance shaped products, in which the structure of the sintered fluorinated polymer is essentially free from technological salts, acids and other impurities
 The way to obtain fiber of optically anisotropic spinning solution / 2142522
The invention relates to a method for receiving the filaments from an optically anisotropic spinning solution in which the spinning solution ekstragiruyut through spinning holes, grouped in at least one spinning section, and the extrudates sequentially pass through the inert gas and coagulation bath, and the ratio of the distance between the spinning holes to the width of the spinning section is greater than 0.15 and less than 0.7 and the width of the spinning section is less than 5 mm
 Taxanes covalently bonded with hyaluronic acid or hyaluronic acid derivatives / 2384593
Invention relates to taxane, especially to paclitaxel and docetaxel covalently bonded with hyaluronic acid or a hyaluronic acid derivative, used as active substance in pharmaceutical compositions which are used in oncology, for treating tumours, autoimmune diseases and restenosis, as well as a coating for stents and medical devices. The covalent bond is formed between hydroxyl groups of taxane and carboxyl groups or hydroxyl groups of hyaluronic acid or hyaluronic acid derivatives, or amino groups of deacetylated hyaluronic acid. Bonding can take place using a linking compound (spacer compound) which bonds taxane with hyaluronic acid or hyaluronic acid derivative under the condition that, the linking compound is different from hydrazide.
Composition - osteoinducer and osteoconductor in treatment of bone pathology in dentistry and oral surgery and method of obtaining composition - osteoinducer and osteoconductor in treatment of bone pathology in dentistry and oral surgery / 2383564
Composition includes chitosan gel, which has bactericidal properties, representing matrix for including in it of water solution for "Adgelon" injection, which contains serum glycoprotein from blood of livestock, possessing biological activity in supersmall doses 10-9-10-15 mg/ml, and calcium salt - preparation "Adgelon". In obtaining composition medicine "Adgelon" is immobilised on chitosan gel.
 Complex matrix for medico-biological application / 2360928
Complex matrix consists of at least one biologically compatible polymer of natural origin, structured with sewing agent, which represents two- or multi-functional molecule, selected from epoxides, epihalohydrines and divinyl sulphone, on said polymer inoculated are chains with molecular weight less than 50000 daltons, selected from polymers of natural origin of small size, preferably, derivatives of cellulose or other biological polymer derivatives which naturally are not present in human organism, and/or non-polymerised chains with properties of oxidation inhibitors or ability to inhibit reactions of matrix decomposition, preferably, vitamins, enzymes or molecules, consisting of one or several cycles, degree of inoculation, expressed as ratio of moles of inoculated molecules and quantity of moles of polymer units, constitutes from 10 to 40%. Also described are method of obtaining such matrix and its application for separation, replacement, filling or addition of biological fluid or tissues.
Method for production of modified paper / 2355842
Invention relates to papermaking technology, precisely to production of modified paper with higher gas-proof and heat-protective properties, and can be applied in constructions, aircraft and automobile constructions, shipbuilding. The method includes treatment of paper with the mixture of 5-7% aqueous solution of polyvinyl alcohol with 5-7% aqueous solution of chitosan at their ratio 1:1 within 10-15 minutes, thereafter treatment with 15-20% aqueous solution of methyl phosphate borate and drying.
Compound for production of modified paper / 2355841
Invention relates to production technology of synthetic paper, precisely to production of modified paper with higher gas-proof and heat-protective properties, and can be applied in constructions, aircraft and automobile constructions, shipbuilding. The compound contains 5-7% aqueous solution of polyvinyl alcohol, 15-20% aqueous solution of methyl phosphate borate and 5-7% aqueous solution of chitosan at the following ratio, pts. wt. polyvinyl alcohol - 5-7; chitosan - 5-7; methyl phosphate borate - 15-20; water - 275-266.
 Chitosanium perchlorate, method for its preparing and power-consuming composition comprising thereof / 2315774
Invention describes chitosanium perchlorate of the following formula: C6O4H9NH3ClO4. This compound shows such properties as explosion-proof, absence of toxicity, resistance to moisture and heating, mechanical effects and possesses high oxidizing and binding properties. This allows its using in power-consuming compositions in mixture with chitosanium dodecahydro-clozododecaborate wherein it functions as a binding agent. The quantitative ratio between chitosanium dodecahydro-clozododecaborate in the composition is determined by required regimen of combustion: the more content of chitosanium perchlorate the higher activity of the composition.
 Chitosan product, method for its preparing (variants) / 2313538
Invention relates to preparing biologically active chitosan substances and their derivatives. Invention describes a modified chitosan substance showing pH-neutral reaction and plastic structure of chitosan particles as fractal chitosan particles of size of nanofractals from 1 nm, not less, and to 5000 nm, not above, or as cross-linked net-shaped polymer having multiple cavities of size from 1 nm, not less, to 50 nm, not above. Invention describes methods for their preparing. Invention provides high transdermal penetration of chitosan substance and enhanced capacity for administration of medicinal or biologically active substances into chitosan substance. Invention can be used in manufacturing cosmetic, curative-cosmetic, pharmacological preparations, biologically active food supplements and foodstuffs.
Chitosan-base composition reducing nitrate content in plant growing production / 2257711
Invention describes a chitosan-base composition reducing the content of nitrates in plant growing production. The composition comprises chitosan of molecular mass 20-150 kDa, organic acids - mixture of succinic, ascorbic and sorbic acids in the mass ratio = 2:1:1, respectively, activating agents of nitrate and nitrite reductases - iron nitrate, ammonium molybdate, indolyl acetic acid and ethylenediaminetetraacetic acid in the mass ratio = 20:5:1:1, respectively; or iron nitrate, ammonium molybdate, indolyl acetic acid and N,N-dicarboxymethylglutamic acid in the mass ratio = 20:5:1:1, respectively, and substances enhancing synthesis of chlorophyll - 2-oxoglutaric acid and L-glutamic acid in the mass ratio = 30:1, and a surface-active substance also in the following ratio of above indicated components, wt.-%: chitosan, 15-25; organic acids, 15-25; activators of nitrate and nitrite reductases, 25-30; enhancers of chlorophyll synthesis, 29-35, and surface-active substance, 1-3. The composition provides enhancing assimilation of inorganic nitrogen in plant and reduces the content of nitrates in plant growing productions.
 Nanocomposite and method of its production / 2256601
Proposed nanocomposite can be used as component contributing to charges of consumer properties of materials made on its base. Nanocomposite includes fibrils of filler-chitin individualized to nanosizes with distance between fibrils from 709 to 20-22 nm and water-soluble polymeric matrix in interfibril space. Degree of filling of nanocomposite is 0.05-0.25% mass. Fibrils are arranged in parallel and they have cross size of 4 nm. Method of production of nanocomposite comes to the following: free-radical polymerization in water medium of at least one monomer of row of acrylic acid, salt of acrylic acid, acrylamide is carried out in presence of filler. Initiator is chosen from the row of water-soluble peroxides, hydroperoxides or their salts, potassium persulfate. Individualization to nanosizes of fibrils is done simultaneously with process of polymerization and/or with combination of said process with mechanical disintegrating action by disintegrating or pressing, or pressing with abrasion shift. Nanocomposite is obtained in form of film, being pervaporation membrane.
 Macroporous chitosan granules and method of production thereof, a method of culturing cells / 2234514
The invention relates to macroporous chitosan granules having a relatively large and uniform pore size of 30-150 μm inside and outside, which are distributed from the surface to the area of the nucleus, and the way they are received, which includes the following stages: adding dropwise chitosan solution, the aqueous chitosan solution, or a mixture thereof in the low-temperature organic solvent or liquid nitrogen; regulation of pore size using the method of phase separation due to temperature differences
 Protective coating for metal surfaces / 2392291
Coating for metal surfaces includes 3.0% solution of refined sodium carboxymethyl cellulose in amount of 92-100 weight parts, spherical disperse aluminium powder in amount of 5.6-7.6 weight parts, glycerin in amount of 5.0-7.6 weight parts.
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FIELD: chemistry. SUBSTANCE: invention relates to a method of obtaining polysaccharide fibre for making materials, specifically for making surgical suture materials absorbable in a human and a mammal body, absorbable and non-absorbable dressing material and absorbable textile matrix materials. The method is characterised by that 2.4-4.0 wt % solution of polysaccharide in dimethylacetamide which contains 4.56-10.00 wt % lithium chloride is mixed with 1.0-5.0 wt % poly-N-vinylpyrrolidone with molecular weight of 8-35 kDa or a metallopolymer complex - fine-grained silver stabilised by poly-N-vinylpyrrolidone in such an amount that, content of fine-grained silver relative polysaccharide dissolved in spinning solution ranges from 0.07 to 0.87 wt %. Mass ratio of polysaccharide: metallopolymer complex equals 88.0-99.0:1.0-12 wt %. The mixture is intensely stirred, held, filtered, degassed and the obtained spinning solution is extruded at room temperature into an alcohol deposition tank in form of water-soluble aliphatic C2 and C3 alcohols. The fibre is then processed in plastification and washing tanks and dried. EFFECT: obtaining fibre with good deformation and strength properties. 1 dwg, 4 tbl, 29 ex
The invention relates to a method for producing a polysaccharide fibers for the manufacture of such materials with high strain-strength properties as monofilament and polyfilament, films, powders of natural high molecular weight polymers, including chitin and cellulose. The resulting polysaccharide materials can be additionally attached to the antimicrobial activity due to the formation of complexes with fine silver. The invention can find use for absorbable and non-absorbable in the body of humans and mammals surgical suture materials, dressings, films and powders with prolonged antimicrobial activity, as well as absorbable woven matrix material to obtain transplants (dermal equivalents)required for the treatment of extensive skin injury with extensive burns and trophic ulcers. The claimed method of obtaining the polysaccharide fibers for the manufacture of materials with high strain-strength properties is characterized by a combination of the following essential features: 1. The polysaccharide is dissolved by heating in dimethylacetamide containing 4,56-10.00 wt.% lithium chloride, to obtain 2.4 to 4.0 wt.% solution. 2. To the solution add 1.0 to 5.0 wt.% poly-N-vinyl pyrrolidone is (PVP) with molecular weight 8-35 kDa or a metal complex of PVP - fine silver in such a quantity that the content of fine silver in relation to the dissolved polysaccharide in the final spinning solution is from 0.07 to 0.87 wt.%, when this mass ratio of polysaccharide:metal-polymer complex is 88,0-a 99.0:1.0 to 12 wt.%, the mixture is intensively stirred, stand, filter, and Tegaserod. 3. The obtained spinning solution at room temperature ekstragiruyut in alcohol precipitation bath containing water-soluble aliphatic C2-C3alcohols; the resulting fiber is passed through plastification and wash tubs and dried. Fiber from natural polysaccharides have long attracted the attention of surgeons. So, in the so-called Edwin Smith papyrus (the Internet), the age of which is estimated at 4,000 years old, described the use of flax as a suture material. It is known that the suture thread may be non-absorbable, for example, flax and other types of cellulose of various origins and absorbable ([1] Buyanov V.M., Ageev V.N., Udodov O.A. Surgical suture - 2000-2005, the site Incoherence, History section of suture materials"). Currently, surgical suture materials presented with the following set of requirements. They must be biocompatible, retains strength over time, providing a complete healing of R is HN. They should not have allergenic properties, not to be pitilessly (i.e. the ability to filter through itself liquids)must be resistant to various infections. If surgical suture thread possesses antimicrobial activity, disadvantages such as fitelnet, the instability to infections can be neglected. ([2] D. Kuzmin, Bieber B.L., G.A. Abakumov, and other Chemical and natural thread for surgical suture materials. - M.: niitekhim, 1988 S). The mechanical strength of the fiber used for surgical sutures, must exceed the strength of the damaged tissue at all stages of regeneration and to ensure good handling properties of the thread in the stitches. When this fiber should not have cutting edges that could injure the stitched fabric. Materials should be sterilized simple, generally accepted methods ([3] Kuzin M.I., Adamyan A.A., Vinokurova TI absorbable Surgical suture materials. //Surgery. 1990. No. 9, S-157). In recent years there have been publications about the use as a surgical suture material natural polysaccharide chitin. Chitin is characterized biological compatibility with the tissues of humans and animals. He has immunomodulatory, antimicrobial, fungistatic, antitumor, radiomatic the ornago, wound healing and hemostatic action ([4] Zhogolev CD, Nikitin V.Y., Bulankov SCI the Study of drugs of chitin and chitosan on the course of the wound process. //Actual problems of septic infections. - SPb. 1996, P.36-37). Chitin accelerates tissue regeneration without scarring and loss of functionality. It initiates the recovery of the blood vessels without any side effects ([5] Shigemasa, A., Minami S. the Use of chitin and chitosan in medicine. //Kobunshi kako. - 1997. 46. No. 2. P.27-33, [6] Dinesh K. Singh and Alok R. Ray. Biomedical applications of chitin and chitosan, and their derivatives. //J. of macromol. Sci.-Reviews in chemistry and physics. 2000, V.C40, N.1, p.60-83). Biologically active polysaccharides allow mobilitat growth factors regulate cell proliferation, which opens up opportunities regeneration not only skin, but also other vital cellular systems of the human body. Stabilization of the fine metal particles in polymer matrices opens wide possibilities for combining the properties of inorganic compounds and polymers. Described getting spongy membranes of chitosan and chitin-chitosan mixtures containing sulfadiazine silver ([6] Tachira K., Onishi h, Machida Y., Preraration of silver sulfadiazine-containing spongy membranes of chitosan and chitin-chitosan mixture and their evaluation as burn wound dressings/ -Yakuzaigaku, 1997, 57(3), 159-167 (Japan), Nippon Yakuzai Gakkai. (Dep.Clinical Pharm., Hoshi Univ., Tokyo, Japan). Chem.Abtr. vol.128, No.5, 1998). The closest to the technical nature of the claimed solution is a method for polysaccharide fibers[7] RF Application 2006124131 And, date of publication, 20.01.2008). This method is implemented by the following set of essential features: "2.4 to 4.0 wt.% the polysaccharide solution in dimethylacetamide containing 4,56-10.0 wt.% lithium chloride, at room temperature ekstragiruyut in alcohol precipitation bath, which use water-soluble aliphatic C2and C3alcohols, processes the received fiber plastification and washing baths and dried". However, the resulting surgical suture material was not sufficiently strong and elastic. The reason for this was the increased fragility of the threads and the low rates of rupture elongation. The task of the invention was to obtain from natural macromolecular polysaccharide materials such as absorbable and non-absorbable fiber (monofilament and polyfilament), with high strain-strength properties required for surgical suture material, and absorbable woven matrix materials. The claimed method of obtaining the polysaccharide fibers for the manufacture of materials with high strain-strength properties are characterized sovocool the th following essential features; 1. The polysaccharide is dissolved by heating in dimethylacetamide containing 4,56-10.00 wt.% lithium chloride, to obtain 2.4 to 4.0 wt.% the polysaccharide solution. 2. To the solution add 1.0 to 5.0 wt.% poly-N-vinylpyrrolidone (PVP) with molecular weight 8-35 kDa or a metal complex of PVP - fine silver in such a quantity that the content of fine silver in relation to the dissolved polysaccharide in the final spinning solution is from 0.07 to 0.87 wt.%, when this mass ratio of polysaccharide:metal-polymer complex is 88,0-a 99.0:1.0 to 12 wt.%, the mixture is intensively stirred, stand, filter and Tegaserod. 3. The obtained spinning solution at room temperature ekstragiruyut in alcohol precipitation bath containing water-soluble aliphatic C2-C3alcohols; the resulting fiber is passed through plastification and wash tubs and dried. Isolation and purification of chitin chitin-containing raw material is conducted in the following way. The crushed shells of crabs, shrimp, krill repeatedly treated with diluted hydrochloric acid, cooled to 4-10°C, followed by rinsing with water; then the material once treated with dilute aqueous sodium hydroxide solution at 35-45°C, washed with water, treated with an aqueous solution of synthetic detergent is about money at a temperature of 35-45°C and pH=11, washed with water, aqueous solution of 1-5 wt.% acetic acid, water, acetone and dried in a vacuum at a temperature not exceeding 60°C. The selection of the purified cellulose is conducted also by known methods. Residues of lignin from flax, cotton and other types of industrial cellulose previously removed by boiling of the polysaccharide in an aqueous solution of sodium hydroxide with sodium thiosulfate. Pulp raw materials absoluut dilute aqueous solution of hydrochloric acid and washed with water to pH=6-6,5. Selected cellulose Inkluderet acetone or ethanol and dried in vacuum at a temperature not exceeding 60°C. It should be noted that the fibers obtained from various species of chitin and cellulose, are characteristic of his nature deformation-strength characteristics. Distinctive from the prototype method the essential feature is the introduction into the solution of the polysaccharide poly-N-vinylpyrrolidone (PVP) with molecular weight (M) 8-35 kDa, in the amount of 1.0-5.0 wt.% by weight of polysaccharide or a metal complex of PVP-fine silver in such a quantity that the content of fine silver in relation to the dissolved polysaccharide in the final spinning solution is from 0.07 to 0.87 wt.%, when this mass ratio of polysaccharide:metal-polymer complex is 88,0-a 99.0:1.0 to 2 wt.%. Note: when using methyl alcohol as a precipitation bath were also obtained good deformation-strength characteristics of polysaccharide fibers as containing PVP, and additionally containing a complex polysaccharide - fine metal silver. However, due to the high toxicity of methanol used in the fiber formation is invalid. The most spectacular effect on the properties of fibers from shrimp chitin have a small additive PVP from 1 to 5.0%. The best modifier was PVP with M=8-35 kDa. With the introduction of 2.5% PVP with M=12 kDa, the spinning solution was achieved fibre strength equal to 718 MPa, and the elongation at break was 6.8%. This fiber keeps the site up to 40% of its original strength. The results are shown in table 1. Obtained from solutions of sulfite pulp, using a Spinneret 1/0,4, in accordance with the stated method of fiber, modified polyvinylpyrrolidone, characterized by the tensile strength (σp) 475-735 MPa; elongation at break (ε) of 7.9-9.2%, maintaining the strength in the node (σy) 32-40,8%. The results are shown in table No. 2. Modification of the solution of the polysaccharide complex of PVP - fine silver in accordance with the claimed invention is conducted by adding a solution of metal-polymer set the KSA, synthesized by a known method. (8. RF patent № 2088234 "water-Soluble antibacterial composition and method of reception" with priority from 25.11.1994 year). Known composition is a system containing silver nanoparticles stabilized by poly-N-vinyl pyrrolidone. Obtained by using a Spinneret 1/0,4 in accordance with the claimed method of the composite fiber from crab chitin - monofilament have the strength 700-916 MPa, an elongation of 5.0-8.1 per cent, maintaining the strength in the node 8,9-25%. The results are summarized in table 3. Obtained when using nozzles with a number of holes 300 and diameter of holes up to 0.08 mm in accordance with the claimed method polyfilament fiber from crab chitin have the strength from 600 to 868 MPa (63,4 CN/Tex), retention of strength at the node from 40% to 69.8% and a tensile elongation of from 5.0% to 8.5%. The results are presented in table 4. Tests also showed that obtained by the claimed method, the fibers are biocompatible, dissolvable in the time required for complete healing of the wound, not allergic, their mechanical properties fully comply with existing requirements matrix and surgical suture materials. Radiation, as well as the usual heat-steam sterilization does not change the deformation-strength characteristics the specifications specifications fibers. Tests have shown that fibers containing fine silver, have a high antibacterial activity to both gram-positive and gram-negative bacteria. The analysis of the scientific and technical level is not allowed to find a method that matches in all essential features with the stated. This suggests about the compliance of the claimed invention to such a condition of patentability, novelty. The analysis of known scientific and technical level showed the novelty of such essential features of the claimed method as a modification of the polysaccharide solutions in the system dimethylacetamide - lithium chloride by the addition of PVP, as well as the metal complex of PVP - Hell, containing silver nanoparticles. When it was unexpectedly found that this results in deformation-strength characteristics of the modified fibers. It was first discovered that small additives PVP or PVP complex is Hell slow crystallization of chitin in forming fiber that helps to increase strength and rupture elongation. Thus, there are new non-obvious features PVP and PVP complex - Ad: first, polymer additives are well combined in the same solution with such polymers, such as polysaccharides (to predict this was not possible), and secondly, this combination contributes to the Lucchini deformation-strength characteristics of the composite fiber (to anticipate it was also impossible) without sacrificing compatibility with the body, thirdly, the interaction of the polysaccharide with the introduced metal complex is also accompanied by an increase of deformation and strength characteristics of the fiber, the formation of chelate complexes, which is accompanied by discoloration of the spinning solution. The final material is homogeneous and retains high dispersion of silver nanoparticles. It was also unexpected and unobvious. Finding new, non-obvious functions previously known substance gives the claimed solution in General compliance with this condition of patentability, as inventive step (non-obviousness). Forming fiber in accordance with the claimed invention have a "wet" (device for the study of processes of forming fibers PFV-01). Functional diagram of the device shown in the drawing. Use the syringe dosing or metering pump and Spinneret: 1/0,4 (one hole with a diameter of 0.4 mm); and a Spinneret with a number of holes 300 and the bore diameter of from 0.06 to 0.08 (40/0,06; 40/0,07; 40/0,08 etc). Obtaining films carried out by the method of irrigation diluted spinning solution of the polysaccharide on the drum or the substrate, followed by precipitation, washing with water and drying. Obtaining powder materials is carried out by grinding the obtained fibers. Fabric for rasasi is the possibility of additional matrices produced by the method of weaving. The drawing shows a functional diagram of the device PIFF-01 for studying processes of orientation forming fibers from polymer solutions. The device includes the following nodes: 1. Syringe spinning unit which consists of a control unit, motor, gearbox, syringe dispenser, filter and spunbond node. 2. Interchangeable spinning site with a metering pump, which consists of a control unit, electric motor, electric motor, gear metering pump, tank spinning solution, filter and spunbond node. 3. The precipitation bath with jacket to maintain the desired temperature of the coagulant. 4. First plastification bath with jacket to maintain the desired temperature. 5. Second plastification bath with jacket to maintain the desired temperature. 6. Washing unit that includes a control unit, electric motor, electric motor, gearbox, thermostat, bath and feed pump. 7. The drying unit, which consists of a control unit, electric motor, electric motor, reducer, heat chamber with a temperature controller. 8. Block receiving fiber with a twist and a control block. A - Podmetnye sites, including motor control, motors, gearboxes. The motor of the metering devices, podm the exact nodes, the twisting, winding provided with a stroboscopic sensors that are associated with the blocks of the control nodes and to a recording device. Studies have shown that the polysaccharide solutions in aprotic solvents containing lithium chloride and PVP, and PVP is Hell, in the absence of moisture in the air for several years maintain a constant viscosity and the ability to form fibers with a constant strain-strength characteristics. Tests showed that these modified polysaccharide fiber, used as suture material, biocompatible, dissolvable in the time required for complete healing of the wound. They are not allergenic, non-toxic, their mechanical properties fully comply with existing requirements for surgical suture materials. Radiation sterilization does not change the deformation-strength characteristics of the fiber. To prove compliance of the claimed solution to the condition of patentability of industrial applicability and for a better understanding of the invention provide specific examples of its implementation, which cannot exhaust the essence of the technical solutions. Getting polysaccharide fibers, modified polyvinylpyrrolidone Example 1 Powdered chitin - content is the future of raw materials (shells shrimp - criley chitin) repeatedly treated with diluted hydrochloric acid, cooled to 4-5°C, washed with water, once treated with dilute aqueous sodium hydroxide solution at 35-45°C, washed with water, twice a synthetic detergent at 35-45°C and pH=1, washed with water, aqueous solution of 1-5 wt.% acetic acid, water, acetone and dried in a vacuum at a temperature not exceeding 60°C. the Selected chitin does not contain ash, protein and has M=120 kDa. A portion of chitin to 10.1 g pour hot solution to 21.91 g of lithium chloride dissolved in 300 ml of dimethylacetamide (T=80°C), stirred until dissolved, filtered, Tegaserod under vacuum. The resulting solution contains 3.2 wt.% chitin and 7 wt.% LiCl. The receiving fiber is performed with the use of syringe-dispenser and die 1/0,4. The precipitation bath is isopropanol, the temperature of the room. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min. and the resulting fiber is washed with water at a temperature of 85±5°C from lithium chloride (control on nitrate silver), cool and dry. The strength of the thread 300 MPa, the elongation of 1.8%. The data of examples 2-10, made in the conditions of example 1, but with the addition of PVP, are presented in Table 1, which shows the dependence of deformation and strength properties HDMI is operating chitin fibers from M and the concentration of poly-N-vinylpyrrolidone (PVP).
From Table 1 it is seen that the most dramatic impact on the properties of fibers from shrimp chitin have a small additive PVP from 1.0 to 5.0%. The modification effect is achieved when PVP with M=8.0-35 kDa. With the introduction of 2.5% PVP with M=12 kDa in the spinning solution fibre strength increased to 718 MPa, and the elongation at break was 6.8%. This fiber keeps the site up to 40% of its original strength. With increasing PVP concentration in the spinning solution is more than 5.0%, the decrease of the mechanical characteristics of the fiber, the values of which are also substantially influenced by the molecular weight of PVP. The use of low molecular weight PVP with M less than 8.0 kDa and high molecular weight with M more than 50 kDa lead to a noticeable decrease in strength and elongation at break, when this module is the elasticity is practically unchanged, however, when using PVP with M more than 800 kDa observed a sharp drop in it. Example 11 Sulfite pulp obezbolivaet dilute aqueous solution of hydrochloric acid and washed with water to pH=6-6,5. Obessolennuyu cellulose Inkluderet acetone dried in a vacuum at a temperature not exceeding 60°C. A portion of sulfite pulp to 10.1 g pour hot solution to 21.91 g of lithium chloride dissolved in 300 ml of dimethylacetamide (T=80°C), stirred until dissolved, filtered, Tegaserod under vacuum. The resulting solution contains 3.2 wt.% cellulose and 7 wt.% LiCl. The receiving fiber is performed with the use of syringe-dispenser and die 1/0,4. The precipitation bath - isopropanol, room temperature. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min. and the resulting fiber is washed with water at a temperature of 85±5°C from lithium chloride (control on nitrate silver), cooled, treated with acetone and dried. Deformation-strength characteristics of the fiber, air-conditioned at a relative humidity of 65% (pH=65), was determined on the device "Instron-110". The base of the test samples was 50 mm, the loading rate of 10 mm/min. In each determination of strength characteristics is the average value obtained at 5 parallel sample is. The strength of the threads 370 MPa, an elongation of 7.0%, maintaining the strength in the node of 28.9%, initial modulus (young's modulus) 19.2 GPA, the linear density of 1.37 Tex. Example 12 100 g of the solution of the cellulose obtained in the conditions of example 11, with stirring, dissolve 0,0337 g of poly-N-vinylpyrrolidone, 1.00 wt.%, PVP from those contained in the polysaccharide solution. Use PVP with M=12 kDa. The solution is filtered, Tegaserod and get spinning solution of cellulose for forming fibers. The receiving fiber is performed with the use of syringe-dispenser and die 1/0,4. The solution ekstragiruyut in alcohol precipitation bath - isopropanol, temperature - room. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min, the Fiber is rinsed with water at a temperature of 85±5°C from lithium chloride (control on nitrate silver), cooled, treated with acetone and dried. The resulting fiber is characterized in the conditions of example 11. The strength of the threads 735 MPa, elongation at break of 8.1%, maintaining the strength in the node 32,0%, an initial modulus of 20 GPA, the linear density of 1.37 Tex. Example 13 In the solution of cellulose (100 g)obtained in the conditions of example 11, was dissolved 0,0840 g PVP (2.5 percent). The resulting solution is filtered, Tegaserod and used for molding fiber. Conditions forming volokna determine the deformation and strength properties are also similar to the conditions of example 11. Fiber strength at break 685 MPA, elongation at break of 9.2%; initial modulus of 19.5 GPA; continued strength in the node of 40.8%; the linear density of 1.37 Tex. Example 14 100 g of the solution of the cellulose obtained in the conditions of example 11, was dissolved 0,1683 g PVP (5,0%). The solution is filtered, Tegaserod and molded fiber. The resulting fiber is characterized by the strength 576 MPa; elongation at 9.0%; initial modulus 19.2 GPA; continued strength in the node - 40,0%; the linear density of 1.37 Tex. Example 15 100 g of the solution of the cellulose obtained in the conditions of example 1, dissolved 0,5017 g PVP (10,0%). The solution is filtered, Tegaserod and molded fiber. The resulting fiber is characterized by the strength 457 MPa; elongation at break of 7.9%; initial modulus 19,0 HPa; continued strength in the node - 38,0%; the linear density of 1.37 Tex. For a better understanding of the results of examples 11-15 are summarized in table 2.
The analysis results are given in table no.2 shows that, as in the case of low-molecular shrimp chitin, modification of the spinning solutions of low-molecular sulfite pulp (SP=220) leads to the increase of deformation and strength characteristics of the fibers obtained from these solutions. The maximum increase in strength characteristics observed at low supplements 1,0-5,0% PVP with M=12 kDa. It is important to note is, in table 1, which also reflected the influence of the molecular weight of PVP on the change of deformation and strength characteristics of the modified chitin fibers, the maximum increase in strength corresponds to PVP with M=12 kDa. Receiving fibers in the modification of the spinning solution of metal-polymer complex of PVP - Hell Example 16 Powdered chitin - containing raw materials (crab shells) repeatedly treated with diluted hydrochloric acid, cooled to 4-5°C, washed with water, once treated with a diluted aqueous solution of 5 wt.% caustic soda at 35-45°C, washed with water, an aqueous solution of a synthetic detergent at 35-45°C and pH=11, washed with water, includefoot acetone and dried in vacuum at 60°C. the Selected chitin does not contain ash, protein and has M=180 kDa. A portion of chitin to 10.1 g pour hot solution to 21.91 g of lithium chloride dissolved in 300 ml of dimethylacetamide (T=80°C), stirred until dissolved, filtered, Tegaserod under vacuum. The resulting solution contains 3.2 wt.% chitin and 7 wt.% LiCl. The receiving fiber is performed with the use of syringe-dispenser and die 1/0,4. The precipitation bath - isopropanol, room temperature. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min Obtained hair is but washed with water at a temperature of 85±5°C from lithium chloride (control by silver nitrate) and dried. The strength of the received thread 645 MPa, an elongation of 7.0%, maintaining the strength in the node 16,0%, the linear density of 1.35 Tex. Example 17 100 g of the solution of chitin, obtained in the conditions of example 16, with stirring, dissolve 0,00224 g of silver stabilized poly-N-vinyl pyrrolidone, 1.00 wt.% PVP is Hell from contained in the solution of chitin. For stabilization of silver is used to PVP with M=12 kDa. The content of the Ad in the composition PVP Hell is 7%. After dissolution 0,0320 g PVP-Ad modified chitin solution left overnight to complete the reaction of chelation. About the end of the process is judged by the bleaching system - brown solution becomes colorless. The receiving fiber is performed with the use of syringe-dispenser and die 1/0,4. The solution ekstragiruyut in alcohol precipitation bath - isopropanol, temperature - room. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min, the Fiber is rinsed with water at a temperature of 85±5°C from lithium chloride (control of silver nitrate) and dried. The strength of the thread 895 MPa, elongation at break of 8.1%, maintaining the strength in the node 25.0%of the linear density of 1.37 Tex. Example 18 100 g of the solution of chitin, obtained in the conditions of example 16, with stirring, dissolve 0,0056 g of silver stabilized the Oli-N-vinyl pyrrolidone, 2.5 wt.% PVP is Hell from contained in the solution of the polysaccharide (chitin). For stabilization of silver is used to PVP with M=12 kDa. The content of the Ad in the composition PVP Hell is 7%. After dissolution 0,0800 g PVP-Ad modified chitin solution left overnight to complete the reaction of chelation. About the end of the process is judged by the bleaching system - brown solution becomes colorless. The receiving fiber is performed with the use of syringe-dispenser and die 1/0,4. The solution ekstragiruyut in alcohol precipitation bath - isopropanol, temperature - room. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min, the Fiber is rinsed with water at a temperature of 85±5°C from lithium chloride (control of silver nitrate) and dried. The strength of the threads 916 MPa, the elongation of 8.0%, maintaining the strength in the node 24,1%, the linear density of 1.37 Tex. Example 19 100 g of the solution of chitin, obtained in the conditions of example 16, with stirring, dissolve 0,0112 g of silver stabilized poly-N-vinyl pyrrolidone, 5.00 wt.% PVP is Hell from contained in the solution of the polysaccharide (chitin). For stabilization of silver is used to PVP with M=12 kDa. The content of the Ad in the composition PVP Hell is 7%. After dissolution 0,1600 g PVP-Ad modified chitin solution left overnight to complete the Oia reaction of chelation. About the end of the process is judged by the bleaching system - brown solution becomes colorless. The receiving fiber is performed with the use of syringe dispenser and die 1/0,4. The solution ekstragiruyut in alcohol precipitation bath - isopropanol, temperature - room. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min, the Fiber is rinsed with water at a temperature of 85±5°C from lithium chloride (control of silver nitrate) and dried. The strength of the thread 884 MPa, elongation at break of 6.7%, maintaining the strength in the node 19.2%, and the linear density 1.38 Tex. Example 20 100 g of the solution of chitin, obtained in the conditions of example 16, with stirring, dissolve 0,0224 g of silver stabilized poly-N-vinyl pyrrolidone, 10.00 wt.% PVP is Hell from contained in the solution of the polysaccharide (chitin). For stabilization of silver is used to PVP with M=12 kDa. The content of the Ad in the composition PVP Hell is 7%. After dissolution 0,3200 g PVP-Ad modified chitin solution left overnight to complete the reaction of chelation. About the end of the process is judged by the bleaching system - brown solution becomes colorless. The receiving fiber is performed with the use of syringe-dispenser and die 1/0,4. The solution ekstragiruyut in alcohol precipitation bath - isoprop the ol, the temperature of the room. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min, the Fiber is rinsed with water at a temperature of 85±5°C from lithium chloride (control of silver nitrate) and dried. The strength of the thread 845 MPa, elongation at break of 6.7%, maintaining the strength in the node of 18.5%, the linear density of 1.40 Tex. Example 21 100 g of the solution of chitin in the conditions of example 16 dissolved under stirring 000269 g of silver stabilized poly-N-vinyl pyrrolidone, 12,00 wt.% PVP is Hell from contained in the solution of the polysaccharide (chitin). For stabilization of silver is used to PVP with M=12 kDa. The content of the Ad in the composition PVP Hell is 7%. After dissolution 0,3840 g PVP-Ad modified chitin solution left overnight to complete the reaction of chelation. About the end of the process is judged by the bleaching system - brown solution becomes colorless. The receiving fiber is performed with the use of syringe dispenser and die 1/0,4. The solution ekstragiruyut in alcohol precipitation bath - isopropanol, temperature - room. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min, the Fiber is rinsed with water at a temperature of 85±5°C from lithium chloride (control of silver nitrate) and dried. Strength recip is authorized threads 805 MPa, the elongation of 6.0%, maintaining the strength in the node of 13.7%, the linear density of 1.40 Tex. Example 22 100 g of the solution of chitin, obtained in the conditions of example 16, with stirring, dissolve 0,03136 g of silver stabilized poly-N-vinyl pyrrolidone, 14,00 wt.% PVP is Hell from contained in the solution of the polysaccharide (chitin). For stabilization of silver is used to PVP with M=12 kDa. The content of the Ad in the composition PVP Hell is 7%. After dissolution 0,4480 g PVP-Ad modified chitin solution left overnight to complete the reaction of chelation. About the end of the process is judged by the bleaching system - brown solution becomes colorless. The receiving fiber is performed with the use of syringe-dispenser and die 1/0,4. The solution ekstragiruyut in alcohol precipitation bath - isopropanol, temperature - room. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min, the Fiber is rinsed with water at a temperature of 85±5°C from lithium chloride (control of silver nitrate) and dried. The strength of the thread 709 MPa, an elongation of 5.0%, maintaining the strength in the node of 8.9%, the linear density of 1.42 Tex. Example 23 The chitin solution containing fine silver and obtained under the conditions of example 17, ekstragiruyut in alcohol precipitation bath - ethanol, the rate is temperature - room. The shaping of the fiber is performed with the use of syringe-dispenser and die 1/0,4. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min, the Fiber is rinsed with water at a temperature of 85±5°C from lithium chloride (control of silver nitrate) and dried. The strength of the thread 886 MPa, elongation at break of 8.1%, maintaining the strength in the node 25,1%, the linear density of 1.37 Tex. The results of these examples are summarized in table No. 3.
Getting polyfilament threads Example 24 The chitin solution containing fine silver, obtained in the conditions of example 18, ekstragiruyut into the precipitation bath through the die plate 300/0,08 in isopropanol at room temperature. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min. and the resulting fiber is washed with water at a temperature of 85±5°C from lithium chloride (control isotonik the th silver), cooled, treated with acetone and dried. The strength of the thread 641 MPa (46,8 CN/Tex), an elongation of 8.0%, maintaining the strength in the node to 68.0%, the linear density of 13.7 Tex. Example 25 The chitin solution containing fine silver, obtained in the conditions of example 19, ekstragiruyut into the precipitation bath through the die plate 300/0,08 in isopropanol at room temperature. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min. and the resulting fiber is washed with water at a temperature of 85±5°C from lithium chloride (control on nitrate silver), cooled, treated with acetone and dried. The strength of the filament 601 MPa (43,6 CN/Tex), an elongation at break of 6.9%, maintaining the strength in the node 69,8%, the linear density of 13.8 Tex. Example 26 Bacterial cellulose Inkluderet acetone, dried in vacuum at 60°C to constant weight. A portion of the cellulose 9,17 g (3%) pour on hot (80°C) solution to 21.91 g LiCl (7%) in 300 ml of dimethylacetamide. Mix until dissolved, filtered, Tegaserod under vacuum. The obtained spinning solution containing 3.0 wt.% bacterial cellulose and 7 wt.% LiCl. The receiving fiber is performed with the use of syringe-dispenser and die 300/0,08. The precipitation bath is isopropanol, the temperature of the room. Plastification and premiwn the baths I - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min. and the resulting fiber is washed with water at a temperature of 85±5°C from lithium chloride (control on nitrate silver), cooled, treated with acetone and dried. The strength of the threads 734 MPa, elongation at break of 7.2%, maintaining the strength in the node 41,1%, the linear density of 1.36 Tex. Example 27 100 g of the solution of bacterial cellulose obtained in the conditions of example 20, with stirring, dissolve 0,00560 g of silver stabilized poly-N-vinyl pyrrolidone, 2.5 wt.% PVP is Hell from contained in the solution of the polysaccharide (cellulose). For stabilization of silver is used to PVP with M=12 kDa. The content of the Ad in the composition PVP Hell is 7%. After dissolution 0,0800 g PVP-Ad modified chitin solution left overnight to complete the reaction of chelation. About the end of the process is judged by the bleaching system - brown solution becomes colorless. Die 300/0,08. The precipitation bath - isopropanol, room temperature. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min. and the resulting fiber is washed with water at a temperature of 85±5°C from lithium chloride (control on nitrate silver), cooled, treated with acetone and dried. The strength of the thread 868 MPa (63,4 CN/Tex), UDL is out at break of 8.5%, maintaining strength in the node 60,0%, the linear density of 1.37 Tex. Example 28 Cotton Linter containing no wax, remove residual lignin by boiling in an aqueous solution of sodium hydroxide (5%) and sodium thiosulfate (20%). Next Linter washed with distilled water, wring out excess moisture, includefoot acetone and dried in vacuum at 60°C to constant weight. A portion of purified cotton Linter 9,17 g (3%) pour on hot (80°C) solution to 21.91 g LiCl (7%) in 300 ml of dimethylacetamide. Mix until dissolved, filtered, Tegaserod under vacuum. The obtained spinning solution containing 3.0 wt.% cellulose and 7 wt.% LiCl. The receiving fiber is performed with the use of syringe-dispenser and die 300/0,08. The precipitation bath is isopropanol, the temperature of the room. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min. and the resulting fiber is washed with water at a temperature of 85±5°C from lithium chloride (control on nitrate silver), cooled, treated with acetone and dried. The strength of the threads 618 MPa (44,8 CN/Tex), an elongation of 5.0%, maintaining the strength in the node of 40.8%, linear density 1.38 Tex. Example 29 100 g of the solution of cotton Linter, obtained in the conditions of example 28, with stirring, dissolve 0,00560 g of silver, a hundred is alizirovannoj poly-N-vinyl pyrrolidone, 2.5 wt.% PVP is Hell from contained in the solution of the polysaccharide (cellulose). For stabilization of silver is used to PVP with M=12 kDa. The content of the Ad in the composition PVP Hell is 7%. After dissolution 0,0800 g PVP-Ad modified solution of cellulose leave overnight to complete the reaction of chelation. About the end of the process is judged by the bleaching system - brown solution becomes colorless. The solution is filtered, Tegaserod and get spinning solution to form fibers. The receiving fiber is performed with the use of syringe-dispenser and die 300/0,08. The precipitation bath is isopropanol, the temperature of the room. Plastification and rinsing baths - distilled water with a temperature of 50°C. the Rate of fiber - 3 m/min. and the resulting fiber is washed with water at a temperature of 85±5°C from lithium chloride (control on nitrate silver), cooled, treated with acetone and dried. The strength of the yarn 911 MPa (65,1 CN/Tex), an elongation of 5.5%, maintaining the strength in the node 59,2%, the linear density of 1.40 Tex. The results of examples 24-29, get polyfilament threads (used filler 300/0,08) from solutions of various polysaccharides (chitin, cellulose cotton Linter and bacterial cellulose) to better understand summarized in table No. 4.
Obtaining films carried out by the method of irrigation diluted spinning solution of a polysaccharide on a drum or a substrate with subsequent sedimentation, washing water and drying. Powder materials obtained by grinding the grain. The method of obtaining the polysaccharide fibers for the manufacture of materials, characterized by the fact that 2.4 to 4.0 wt.% the polysaccharide solution in dimethylacetamide containing 4,56-10.00 wt.% lithium chloride, add 1.0 to 5.0 wt.% poly-N-vinylpyrrolidone (PVP) with molecular weight 8-35 kDa or metal complex - fine silver, stabilized poly-N-vinyl pyrrolidone in such a quantity that the content of fine silver in relation to the dissolved polysaccharide in the spinning solution is from 0.07 to 0.87 wt.%, when this mass ratio of polysaccharide: metal-polymer complex is 88,0-a 99.0:1.0 to 12 wt.%, the mixture is intensively stirred, stand, filter, Tegaserod and the resulting spinning solution at room temperature ekstragiruyut in alcohol precipitation bath, which use water-soluble aliphatic C2and C3alcohols, then processes the received fiber plastification and washing baths and dried.
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