Surface treated yarn and fabric with enhanced physical and adhesion properties and method of making same

FIELD: textile and paper.

SUBSTANCE: invention relates to technology of producing modified polymer fibres with high specific strength and concerns yarn and fabric, characterised by presence of treated surface with improved physical and adhesion properties. Fibre is modified by plasma treatment or treatment with corona discharge, and it is characterised by specific strength of at least approximately 33 g/denier at ambient room temperature.

EFFECT: invention enables modification of fibres without deterioration of characteristics of physical strength.

16 cl, 6 tbl, 40 ex

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: invention relates to the technology of production of polymer fibres, in particular, polypropylene fibres, which can be applied as a reinforcing for cement, gypsum, concrete, etc. The fibre is obtained by moulding from a melt and further processing by ionising radiation. The fibre is 0.1-40 mm long, has a diameter of 5-170 mcm and the melt flow index higher than 500 g/10 min, measured in accordance with DIN EN ISO 1133.

EFFECT: application of the obtained fibres provides an increase of fire resistance of the concrete products.

5 cl, 1 tbl, 1 ex

FIELD: chemistry.

SUBSTANCE: invention relates to chemistry of polymers and deals with a method of obtaining hardly flammable polymer products based on polyethyleneterephthalate with biocidal properties, which can be applied in the textile industry, medicine, in products of a special purpose as well as in other fields of industry. The method of obtaining hardly flammable polymer products based on polyethyleneterephthalate with biocidal properties includes stretch forming of polyethyleneterephthalate-based polymer product in an adsorption-active liquid medium, containing modifying additives, and the product drying, with, at least, one modifying additive being a biocidal preparation and, at least, one modifying additive being a fire retardant, and one of the modifying additives is pentaerythritol.

EFFECT: reduction of the polymer material dropping with preservation of lower combustibility and biocidal activity.

8 cl

FIELD: chemistry.

SUBSTANCE: composition contains low-molecular siloxane caoutchouc, ethylsilicate-40, octaphenyltetraasaporphyrinatocobalt(II) or octaphenyltetrapyrazinoporphyrazinatocobalt(II).

EFFECT: increase of covering stability to abrasion and its water-resistance.

1 tbl

FIELD: textiles, paper.

SUBSTANCE: method comprises treatment of cloth at room temperature with a composition comprising, g/l: polyhexamethylene guanidine hydrochloride 15-25, copper acetate or zinc acetate 4-7, acetic acid 4-7, and water up to 1 liter and then the cloth is heat-treated at a temperature of 130-180°C for 1-10 minutes, while half-woollen cloth is made by interlacing of warp and weft yarns of wool and polyester fibers with filling ratio of cloth in the warp and weft equal to 0.9-1.3.

EFFECT: giving the fabric antiallergenic and bacteriostatic properties, while maintaining the antimicrobial activity after wet treatments.

1 dwg

FIELD: textiles, paper.

SUBSTANCE: composition contains the agent which represents diethylene-glycol ester 1,3-dimethyl-4,5-dihydroxyethyleneurea - 15-30 g/l, magnesium chloride - 1-3 g/l, the agent representing styrene-vinyl-acetate-acrylic copolymer - 30-75 g/l and water - up to 1 litre.

EFFECT: reduced loss of strength and domestic shrinkage of processed material, maintaining soft handle, simultaneous infusion of properties of low crease retention and resistance to shrinkage, increase in reliability of the equipment operation due to the absence of adhesion, reduction of energy consumption during treatment of the material.

1 tbl

FIELD: textiles, paper.

SUBSTANCE: method of metallisation woven materials lies in melting of metal wires with electric influence, as well as in spraying of microparticles of molten metal to the plane of the material moving orthogonally to the direction of the spraying with the given speed of feeding and protected with the medium of spray distribution from the damaging effect of high temperatures. The explosive melting of the wire substance is carried out through high-voltage electric influence between the ends of the non-open wire delivered discretely to the metalliser in aqueous medium, and a cloud of ionised particles of evaporated metal is formed, and metallisation is performed by energy cumulation of thermal explosion W and electromagnetic focusing of motion trajectories of the ionised particles to the target rate of metallisation, and the rate of feeding Fn of the process material is regulated in time with a spacing frequency nsp of electric influence, and the volume Vw of the exploded wire is changed, as well as the spraying propagation medium, the voltage Uco and the spacing frequency nsp of electric influence formed by a bit relaxation circuit Lc-Ct, and the metallisation indices are set and controlled during metallisation according to the value of the scattering coefficient Ks of electromagnetic radiation, characterised by the formula: where: Uco is a voltage of electric influence exploding the wire; εm"ш" is dielectric capacitance of the fabric material and metal particles, respectively; α is lateral dimensions of the particles; W is energy released under electric explosion of the wire, of the given volume Vw; Zac is acoustic impedance of the discharge circuit forming the spacing frequency nsp of electric influence; ρmwf,λvap is density, specific electrical conductivity, heat of fusion and heat of vaporisation of the wire material in a given environment; Lc is the circuit inductance; Ct is capacity of tank of capacitors; T=tspTs⇔VwKl emf is the number of explosions of the wire in processing of area of fabric with volume Vfab necessary to ensure the given index of metallisation with guaranteed by experimentally proved dependence of metal amount introduced into the fabric on the volume of the exploded wire Vw taking into accountfor adjustment for the loss coefficient Kl emf at electromagnetic focusing of motion trajectories of the ionized particles; Ts is the sampling period of time of feeding the section of plane of metallised surface; d is thickness of the fabric; λ is wavelength of the electromagnetic radiation in a vacuum; and the value of the metallisation index Kp is set and controlled using a physical phenomenon of scattering of electromagnetic waves in the infrared range, and the voltage of electric influence Uco exploding wire with length of 40 mm and a diameter of 0.6 to 1 mm is adjusted from 2 to 4 kV with values of capacity of tank of capacitors Ct of 150 to 200 microfarad and values of the discharge circuit inductance Lc of 30 to 40 mcH, ensuring minimum loss of metal from 30% to 40% with an electromagnetic focusing of motion trajectories of the ionised particles.

EFFECT: technology is feasible in any media, including, liquids, the cloths have shielding properties, and antibacterial, antiviral, catalytic activity.

1 cl, 6 tbl, 6 dwg

FIELD: textiles, paper.

SUBSTANCE: bicomponent fibers contain aliphatic polyester or a mixture of aliphatic polyesters, which form the first component, and polyolefin or a mixture of polyolefins, which form the second component. Polyolefin contains auxiliary material improving its biodegradation. Textile sheets include these bicomponent fibers and are comparable by mechanical properties to textile sheets based on polyolefin, while they are decomposed more efficiently under the action of microorganisms than the textile sheets based on polyolefin.

EFFECT: enhanced biodegradability, to textile sheets such as nonwoven materials comprising these fibers, which can be used in personal care products.

16 cl, 3 tbl, 2 ex

FIELD: textiles, paper.

SUBSTANCE: bicomponent fibers contain aliphatic polyester or a mixture of aliphatic polyesters, which form the first component, and polyolefin or a mixture of polyolefins, which form the second component. Polyolefin contains auxiliary material improving its biodegradation. Textile sheets include these bicomponent fibers and are comparable by mechanical properties to textile sheets based on polyolefin, while they are decomposed more efficiently under the action of microorganisms than the textile sheets based on polyolefin.

EFFECT: enhanced biodegradability, to textile sheets such as nonwoven materials comprising these fibers, which can be used in personal care products.

16 cl, 3 tbl, 2 ex

FIELD: chemistry.

SUBSTANCE: liquid low-molecular siloxane rubber-based composition for fire-resistant material also contains ethyl silicate-40 or tetraethoxy silane as a curing agent and a titanium-containing compound in form of alkoxytitanium borate, where the alkoxy groups are ethoxy, propoxy or butoxy groups.

EFFECT: composition having high stability and adhesion to synthetic fabrics, which increases fire-resistance and reduces hardness of material with a coating made from said composition.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to the technology of producing anti-contamination composite materials. The material contains a polymer fibre substrate on whose surface there is a layer of fine inorganic particles and a binding component formed via chemical bonding. Each of said fine inorganic particles is coated with a silane monomer with unsaturated bonds. Content of said binding component ranges from 0.1 wt % to 40 wt % of the amount of fine inorganic particles. The material can be in form of a fabric, filter, mosquito net, construction material and material for inside rooms.

EFFECT: material is dustproof and highly durable.

13 cl, 10 dwg, 7 tbl, 15 ex

FIELD: chemistry.

SUBSTANCE: invention relates to method of active substance delivery, in particular to method of delivering active substance from fibre filament or non-woven material. Active substance is released from filaments, including more than 20% of active substance of dry filament weight.

EFFECT: invention provides increase of efficiency of active substance delivery under conditions of target application.

43 cl, 12 tbl, 6 dwg

FIELD: textiles, paper.

SUBSTANCE: fibrous material is formed on a carding machine with the ability of subsequent increasing the layers on the web-spreader or formed with aerodynamic method. The fusible bicomponent or polypropylene fibre is added into the composition of the fibrous mixture. The formed canvas is subjected to thermal binding by feeding it into the furnace with the supporting conveyor and the temperature of 120-150°C, after which the formed volume web structure is subjected to finishing by the polymeric binding methods of immersion and spinning or spraying with nozzles. Then the web is dried in the said furnace with hot air blowing with the temperature at the inlet of the furnace chamber of 100-110°C, in the middle part of the chamber of 120-130°C, at the outlet of the chamber of 100°C. After drying, the web is additionally finished with feeder ironer folders and stackers. The fibrous mixture of the composition is used, containing 15% bicomponent fibre and 85% polyester fibre; or 10% polypropylene fibre, 20% cotton fibre and 70% polyester fibre; or 20% bicomponent fibre, 20% cotton fibre and 60% polyamide fibre.

EFFECT: method enables to reduce migration of fibres, to improve air permeability, to reduce creasing property, to improve elasticity of volume nonwoven polymer-containing web.

3 cl, 1 tbl, 3 ex

FIELD: textile, paper.

SUBSTANCE: invention relates to the method to manufacture a textile cover (2) from a linen (3) of fibre containing: a rear surface (8B), the first area (5), the second area (7) and a front surface (8A), besides, the first area is the area of adhesion, in which fibres (4) of the linen (3) are integrated into a dense woven structure (5), retaining these fibres (4), and which is arranged only in part of the linen (3) thickness (6), and the second area (7) is arranged in the other part of the linen (3) thickness (6) up to the specified front surface (8A). The method is characterised by the fact that according to the method a) the AC electric field is applied to the linen (3), at least front or rear (8A, 8B) sides of which carries a thermomelting powdery binder (12), besides, this powdery binder (12) is introduced into the linen (3) from the fibre (4) so that the specified binder (12) is concentrated in the first area (5). Then c) the binder (12) is exposed to melting by heat supply; then d) the binder (12) is left until hardening or exposed to hardening.

EFFECT: simplified manufacturing of a textile cover without deterioration of cover mechanical properties.

18 cl, 4 ex, 4 dwg

FIELD: production of non-woven textile materials based on chemical filaments, and organosilicone preparation used as adhesion promoting agent.

SUBSTANCE: method involves applying organisilicone preparation onto filament; drying and forming fibrous cloth, followed by thermal pressing. Organosilicone preparation used in process is alcoholic solution or aqueous emulsion of vinyltriethoxysilane or oligovinylethoxysilane, said components being used in the following ratio: vinyltriethoxysilane or oligovinylethoxysiloxane 1.00-10.00; surfactant 0.05-0.5; ethyl alcohol and/or water the balance. Drying process is performed at room temperature. Hydrogen peroxide is applied at cloth formation stage. Thermal pressing of fibrous cloth is carried out at temperature approximating fiber polymer flow temperature and under pressure of 20·105 Pa during 0.02 s.

EFFECT: provision for producing of non-woven textile material with higher strength characteristics, air-permeability, elasticity, improved crease-resistance and higher resistance to wet processing and washing.

FIELD: structurized wall-covering material with base side connected to ornamental side.

SUBSTANCE: base side and ornamental side are formed from dried non-woven materials, with fibers of ornamental side having mean diameter less than 10 micrometers. Base side is connected with ornamental side by means of flexible glue, and said composition has elongation exceeding 10% upon applying of maximal force.

EFFECT: provision for creating of wall-covering material having single structure, wider range of ornamental effects and good elasticity in covering of wall cracks resulted from processing.

5 cl, 1 dwg, 2 tbl

Fibrous material // 2058453
The invention relates to the chemical industry, in particular fibrous materials derived aerodynamic method

FIELD: textiles, paper.

SUBSTANCE: invention relates to nonwoven fabrics for use in napkins, absorbent products, and relates to laminated nonwoven fabric with high cellulose content. It comprises three layers bonded together. The outer layers are lightweight melt-shaped webs. The middle layer comprises wood pulp fibres. Each of the non-woven layers is formed separately and individually in order to be self-supporting webs, after which three self-supporting webs are brought together before fastening them together.

EFFECT: invention when used as a basis for wet wipes displays a combination of several useful properties: good wet and dry softness and volume, good wet abrasion resistance and low wet tendency to separation of flay when the main part of the initial material is the wood pulp.

31 cl, 11 dwg, 10 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention relates to composite materials and deals with hardening laminate components of the fuselage. It includes thermoreactive resin, at least three fibrous constructional layers and at least one dampening layer, where the ratio of the quantity of the constructional layers to the quantity of the dampening layers constitutes at least 3:1, and after hardening by an impact of higher temperatures the component becomes a rigid envelope of the body.

EFFECT: invention provides a solution of noise dampening on large areas.

29 cl, 3 dwg, 1 tbl, 3 ex

FIELD: process engineering.

SUBSTANCE: invention relates to reinforcing materials, particularly, to intermediate material to be combined with thermosetting resin for production of composite parts. Intermediate material consists of unidirectional web of carbon fibres with surface density of 100-280 g/m2 bonded on every side with thin 0.5-50 mcm depth film of thermoplastic fibres. Note here that said intermediate material features total depth of 80-380 mcm.

EFFECT: satisfactory mechanical properties suitable for in, for example, aircraft engineering.

21 cl, 17 dwg, 8 tbl, 7 ex

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