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Conductive webs and method of their manufacturing Nonwoven fabric comprises: a nonwoven base web consisting of cellulose fibres in an amount of at least about 50 wt %; cellulose fibres comprising softwood fibres having Canadian Standard Freeness, at least about 350 ml; conductive fibres in an amount from about 5 wt % to about 15 wt %. The conductive fibres comprise carbon fibres having the purity of at least about 85%, at that the pulp fibres are mixed with the carbon fibres. The main web has the tensile strength in the longitudinal direction of at least 5900 grams-force (which corresponds to 57.9 N), the base weight is less than about 40 g·m-2, the voluminosity is less than about 1 cm3/g, the resistance is less than about 100 ohm/square. At that the basic web comprises water-resistant material and is non-embossed. The carbon fibres have the length from about 1 mm to about 6 mm. The method of manufacturing the conductive paper web comprises applying the aqueous suspension of fibres onto the porous forming surface to form a wet web, smoothing the web, drying and cutting the web into a plurality of bands having the width of about 3 mm to about 10 mm. Each band is wound crosswise onto the bobbin. |
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Invention relates to a fire-resistant thermo- and/or sound-insulating product. The fire-resistant thermo- and/or sound-insulating product is based on mineral wool, in particular an asbestos fibre or glasswool and an organic binding agent. The product contains a salt of metal and polycarboxylic acid as a fire retardant. |
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Operation of reinforcing fibre braider Braider comprises ring with fibre reels to braid several fibre plies around mandrel mounted at holder displacing along ring axis. After braiding said fibres are cut to withdraw the mandrel. In compliance with this invention, core is fitted holder, behind the mandrel, to set the core to be connected with said mandrel. After feed of mandrel through said ring, fibres are tightened around said core with the help of loop passed over fibres. Prior to withdrawing the mandrel, fibres are cut between the latter and the core. |
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Described is a functional spunbonded fabric consisting of fibres based on a non-fusible polymer containing one or more functional additives. The fibres are interwoven and interlocked and have different lengths, with ratios greater than 1000 and form a strong composition of nonwoven fabric. The fibres have a mean diameter of 0.1-500 mcm and diameter variations within a fibre and/or among each other of at least 30%. Along with non-fusible polymers, the fibres contain more than 40%, with respect to the total weight of the fibres, of finely distributed functional additives in solid and/or liquid form. The spunbonded fabric is produced from a spinning solution containing the non-fusible polymer dissolved in a solvent and at least one functional additive. The spinning solution is extruded out of a spinneret, and the resulting polymer strands are drawn in the longitudinal direction to form filaments or fibres, stabilised and laid down to form the required material. |
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Method of weaving reinforcing fibres with change of tilting of interweaving fibres Invention relates to a method of weaving the reinforcing fibres on the mandrel cradle (8) using a machine comprising a ring (9) with at least two rows of bobbins reinforcing fibres mounted on it, by movement of this mandrel cradle at a predetermined speed of motion and by moving two rows of bobbins along the ring (9) so that they intersect rotating at a predetermined speed in opposite directions around the axis (AX) of this ring, and on the mandrel cradle (8) the braid is formed at the convergence region (R) of the fibres, which together bound a cone shape (C), characterised in that it comprises a step of reconfiguring at which an angle (a2) at the cone apex (C) bounded by the fibres, has a new value (a2), and the step of resuming weaving on which the movement of the bobbins along the ring (9) and the movement of the mandrel cradle (8) is resumed with the new speeds of movement and rotation. |
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Invention relates to leather conditioner comprising a fibrous substrate and cleaning composition activated by dampening with water with subsequent mechanical effects that allow production of cleaning foam. It differs from known designs in that said substrate is composed by a pad based on cotton fibre braided by water jets of mass varying from 100 g/m2 to 300 g/m2. Note here that cleaning composition contains at least one surfactant in amount of 15-35 wt % with respect to total mass of glycerine and glycerine in amount of 55-75 wt %. Amount of water at substrate is 25% smaller than article mass. This article contains 0.1-1.2 g of active material of said composition per 1 g of said substrate. Note here that article strength in machine direction after its dampening is at least 10% higher than that before dampening. |
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Permeable tape for obtaining nonwoven materials Fabric structure for use as a tape or a sleeve for obtaining textured nonwoven materials, permeable to air and/or water, comprising: a carrier substrate, a surface of contact with the web, having a pattern comprising a number of raised contact pads and recesses, for imparting texture to the nonwoven material, and a number of voids for passage of water and/or air from the fabric surface into and/or through the structure. At that the effective diameter of the said voids is more than 50 microns, and the contact surface with the web comprises the material of surface comprising a coating or a layer of the laminated film, at that in the said coating or film the grooves are formed, and the barrier layer under the surface of contact with the web of the said fabric structure, which enables the surface material to penetrate partially into the substrate under the surface of contact with the web. |
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Wet wipe or thin hygienic material that can be sewered Wet wipe or thin hygienic material that can be sewered contains nonwoven material that is bonded through fibres intertangling with jets of liquid, impregnated with a moistening composition. The nonwoven material contains wood pulp in an amount of at least 70% of the fibre mass, the rest represented by chemical fibres and/or natural fibres with length equal to at least 6 - 15 mm. The length of the wet wipe or thin hygienic material in the treatment direction exceeds the width in a direction crosswise relative to that of treatment by at least 25%; their moist condition strength in the treatment direction exceeds moist condition strength in a direction crosswise relative to that of treatment at least 3 times; the moist condition strength in a direction crosswise relative to that of treatment is equal to 50-200 N/m. The wet wipe or thin hygienic material contains a substance increasing moist state strength in an amount of no more than 0.1 wt % in terms of dry weight. |
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Technical fabric for manufacture of nonwoven materials and method of its manufacture Technical fabric such as an endless tape or sleeve is disclosed, for production of nonwoven materials and method of its manufacture. The fabric comprises through cavities, each of the said through cavities comprises a first opening on the upper surface of the fabric, the first annular raised edge adjacent to the first opening, at that the said raised edge forms a continuous raised rim around the said opening. Each through cavity additionally comprises a second opening on the lower surface of the fabric and the second annular raised edge adjacent to the second opening, the first opening may have a surface area which is greater than the surface area of the second opening, at that the said raised edge forms a continuous raised rim around the said opening. |
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Technical fabric and method of its manufacturing Present invention relates to supporting elements such as tapes or sleeves which are used in production of labelled or textured nonwoven products having a pattern. The supporting element such as tape or sleeve comprises a surface relief pattern on the side which is in contact with the sheet. On the upper surface of the supporting element the contact pads, respective recesses, through cavities and/or grooves are formed to create a surface relief pattern. The contact pads, the respective recesses, the through cavities and/or grooves can be formed by engraving, cutting, etching, stamping, mechanical punching, or their combination. The improved tape or sleeve give the non-woven product manufactured on them the desired physical properties such as bulk density, appearance, texture, absorption capacity, strength and tactile sensations. |
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Construction of feather ribbon Construction of feather ribbon comprises feathers of birds and a strip of textile material. And in the construction a strip of natural or artificial leather and an adhesive mesh is added. At that the feathers are used only as fan parts of feathers, and all the layers are bonded by thermal-adhesive or thermal-welded method. |
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Novel polyvinyl alcohol products Claimed invention relates to polyvinyl alcohol nonwoven films and fabrics and method of obtaining them. Nonwoven air-permeable fabric or film contains polyvinyl alcohol and has at least one coalesced surface layer, containing low porous polyvinyl alcohol, and layer, consisting in fact from fibrous polyvinyl alcohol. Said coalesced layer is more susceptible to heat transmission that said fibrous layer. Method of selective modification of surface of polyvinyl alcohol film or fabric is realised by selective coalescing of at least one surface of polyvinyl alcohol by means of heat and water with formation of low porous surface layer, attached to layer of non-modified polyvinyl alcohol. Film or fabric are soluble at higher temperatures. |
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Method for knitting products such tights, corresponding machine and product Invention relates to a machine for knitting articles of clothing such as underpants, tights and other similar articles. The method involves stages of knitting of at least one part of the body piece by way of reciprocal movement of the two cylinders of a double cylindrical machine. The leg pieces knitting is performed by way of continuous circular movement of the two cylinders; the first leg piece is knit by the first of the said cylinders while the second leg piece is knit by the second of the said cylinders. According to the invention, the gore zone needle arc remains temporarily inactive on each of the said two cylinders during knitting of the said at least one part of the body piece by way of reciprocal movement. It is additionally envisaged that the temporarily inactive needles must come into operation when knitting of the said at least one part of the body piece by way of reciprocal movement comes to an end which results in formation of an interknitting line in the gore zone for connection of the both leg pieces; then knitting is continued by way of continuous circular movement with all the needles of the both cylinders. |
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Composition for obtaining fibres by electrospinning Water composition contains in wt % 15-40 solution of interpolymeric complex, 50-80 aqueous solution of thickening agent (concentration 8 - 14%) and acidity regulator 2H HCl to pH=2 - 4. Interpolymeric complex is obtained by mixing 1% solution of polyacrylacid and 10% solution of polyvinyl alcohol with component ratio 1:1. As thickening agent, applied is polyvinyl alcohol or polyethylenoxide. Viscosity of composition constitutes from 0.5 to 0.9 Pa·s. |
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Nonwoven filtering material comprising a nonwoven web of an anion-exchange modified polyamide fibres and a system of fastening loops of stitching thread, additionally comprises a second fibrous layer of hydrophilic modified polyamide fibres, the stitching thread is used as the yarn from a mixture of hydrophilic modified polyamide fibres and the high-shrinkage viscose fibres with the content of the latter in the mixture of 30-40%, the stitching thread when fastening with the tricot laying forms the plush broaching located between the fibrous layers, at that the distance between the layers is 4-7 mm, and the ratio of the layer of the modified anion-exchange polyamide fibres, the stitching thread and the layer of hydrophilic modified polyamide fibres by weight is 1:0.2:0.5. |
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Method of production of knitted goods with specified structural parameters of web Invention relates to the field of technology of knitwear manufacture, in particular to processes of manufacturing knitted goods on knitting machines with electronic programme control, to technology of hosiery manufacture. The method of manufacturing knitted goods comprising areas of knitted fabric with the specified length of thread in a loop when designing, or runner length when knitting, and the weave construction. In this method, the velocity of thread is continuously measured in the area between the thread tension regulator and the knitting mechanism of the knitting machine, according to the measured values of the velocity of thread and the specified values of needle cylinder rate of rotation and the number of needles of the knitting machine, using the computing device the dependence of the length of thread in the loop or the runner length is created on the depth of knocking-over in the "operation mode" according to the specified values of the length of thread in the loop and the created dependence on the computing device the functional command of the thread length regulator in the loop is formed. |
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Knitted fabric and method for its manufacture Invention relates to manufacturing process of tubular knitwear, principally legwear garment classified as casual clothes, mostly for autumn or winter. According to the invention the product is characterised in that, for example, in the manufacture of tights, while knitting a torso part having a maximum width corresponding to the maximum perimeters of the circumference of human body in its critical standard sections, the length of thread in the loop (ℓ) is increased and simultaneously the total linear density of the threads (T) is increased, preferably by inclusion of additional thread in the knitting process, in which the filling coefficient of knitwear (kℓ) is within the range of 0.85-0.95 and is determined by the formula k ℓ = ℓ T , where ℓ is the length of the thread in the loop, and T is total linear density of the threads. The proposal does not exclude the construction of products in the form of tights, leggings, shorts, half-stockings and other products where the parts of the product of maximum width are made of thicker yarn and the length of thread in the loop is simultaneously increased. |
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In the invention the knitted volumetric fabric is provided, comprising tight knitted layer (10) of the lower side, less tight knitted layer (12) of the upper side and the connecting fibers (14) extending through the space (16) between the lower and upper sides (10, 12). Solidifying material such as cement is inserted into the space (16) between the upper and lower sides, and the addition of liquid, e.g. water, can cause its solidification. Prior to solidification the fabric is flexible and it is possible to shape it, but after the material in the space (16) is solidified, the fabric becomes hard, and it can be used as a structural element in a wide range of applications. The lower layer (10) comprises a protruding part (24), which protrudes from the lower side (12) and is connected to the upper side via the elastic connecting fibers (26), which attract the protruding part to the other side, thereby at least partially closing the space on the edge of the fabric and preventing pouring out the solidifying material. Furthermore, the package of the solidifying material and the maximum space between the sides is such that only a predetermined amount of liquid can be placed in the space, and this amount corresponds to the amount of water required for solidification of cement. |
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Absorbing article according to the present invention comprises the following elements: a liquid-permeable upper sheet; a liquid-tight lower sheet; an absorbing element located between the upper sheet and the lower sheet for absorbing liquid, permeating through the upper sheet, and a receiving layer located between the upper sheet and the absorbing element for supplying liquid penetrating through the upper sheet to the absorbing element. The receiving layer comprises a nonwoven fabric perforated without physical or thermal deformation. |
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Device and machine for production of plastic network with open cells Device for twisting plastic monofilaments for forming a plastic network with open cells comprises: a front mechanism for twisting and the rear mechanism for twisting, which comprise the respective pairs of front and rear cop guides for introducing the plastic monofilaments for twisting into them. Each pair of front cop guide and rear cop guide is connected by the respective thermally conductive thread guides, preferably made in the form of tubes through which the uniform heating of the plastic monofilament is provided, which is conducted through the tube. The machine for twisting plastic monofilaments for forming a plastic network with open cells comprises: supply, heating, twisting, collecting devices, and additionally supporting device located downstream of the twisting device, to maintain uniform form of the newly formed network with open cells. |
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Method of production of nonwoven fabric from fibres Method of production of nonwoven fabric from fibre comprises the following steps: a) the step of production of fibres having a crystallisation temperature not exceeding 112°C, when the polymer is melted, which comprises polyphenylene sulfide as a main component which is substantially not copolymerised with trichlorobenzene, and the fibre yarns discharged from the spinning nozzles, are elongated and stretched at a spinning speed of at least 5000 m/min and less than 6000 m/min, using the ejector, which is located so that the distance between the lower wall of the nozzles and the hole for compressed air discharge of the ejector is from 450 to 650 mm; b) a step in which the resulting fibres are collected on a moving screen to form a nonwoven fabric; and c) a step in which the thermocompression bonding of the resulting nonwoven fabric is carried out by means of the hot drum. |
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Velour carpet with surface similar to surface of tufting carpet Invention relates to a method of manufacturing a velour carpet comprising the following steps: a) needle punching of the nonwoven material/nonwoven material "Mali" on the strip with the bristles using needle felting machine, in which course of implementation the shaggy nonwoven material/bearing nonwoven material is dragged through the strip with bristles and partially withdrawn back from the strip with bristles such that the fibers of the shaggy nonwoven material/bearing nonwoven material are located in the plane of the strip with bristles; b) separation of the nonwoven material from the strip with bristles using a shaft-brush; c) brushing the shaggy side prior to cutting loops. Additional nonwoven material/nonwoven material "Mali", especially shaggy nonwoven material/bearing nonwoven material is placed on the back side of the nonwoven material/nonwoven material "Mali", especially between first and second needle felting machines, between the steps a) and b). |
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Method of production of flax cotton-wool Method of production of flax cotton-wool comprises preparing fiber, its mechanical treatment, bleaching using chemical solution, rinsing, spinning and drying. In preparing the fiber, the ribbon is formed from it, which is treated with the chemical solution, followed by rinsing, spinning and drying. The dry bleached ribbon is subjected to mechanical treatment by alternating bending deformation, bilateral sliding bending with entanglement of the ribbon end parts and the subsequent purification of short-stapled fiber formed by mechanical treatment from non-fibrous impurities. |
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Duplicating gasket is described, which is applicable, in particular, as a gasket for the front duplicating in the textile industry, with a carrier layer based on loosely coupled and structured with the waterjet method combing or nonwoven fabric. At that the carrier layer is bound only on the selected sites using a binder and is provided at least from one side with an adhesive mass. The carrier layer is structured so that it has a raster perforated structure. |
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Non-woven fabric and method of its production Non-woven fabric (10) according to the present invention comprises a conjugated fiber of core/shell having a shell composed of a polyethylene resin, and a core composed of a resin component having a melting temperature which is higher than that of polyethylene resin; and a hydrophilising agent, adhering to the surface of the conjugated fiber of core/shell. The non-woven fabric has points connected by the thermal fusion, formed by intersections bound by thermal fusion of constituent fibers. The conjugated fiber of core/shell comprises a heat extensible fiber which length is increased by heating, and the heat extensible fiber has a hydrophilicity gradient in the thickness direction and/or in the planar direction of the non-woven fabric (10). |
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Invention relates to a method comprising the stages when at least one part (5A, 5B) of the body part (1) is knitted by reciprocating motion of two cylinders of the double cylindrical machine and the parts for legs (9A, 9B) are knitted in a continuous circular motion of two cylinders (11, 13). The first part for legs is knitted by the first of the said cylinders, and the second part for legs is knitted by the second of the said cylinders. It is envisaged that the arc of needles (C) remains temporarily inactive on each of the said two cylinders during knitting of the said at least one part (5A, 5B) of the body part (1) by reciprocating motion. Moreover, it is envisaged that the temporarily inactive needles should enter into operation at the end of knitting of the said at least one part (5A, 5B) of the body part (1) by reciprocating motion, as a result a knitting-in line (CC) is formed for connection of two parts for legs (9A, 9B), then knitting is continued by continuous circular motion by all the needles (15) of both cylinders (11, 13). |
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Method and device of production of combined multilayer fabrics In one of the versions the method comprises the steps of using a plurality of drivers of twisted yarns forming the multilayer structure in the first direction, in which all drivers are able to move promptly relative to each other in a second direction which is perpendicular to the first direction, and form a plurality of intersection points of twisted yarns by moving at least one driver of twisted yarns in the second direction according to the scheme of combining, the binding yarns are moved through a plurality of twisted yarn layers at predetermined positions in the first direction, the binding yarns are fixed in place, the binding yarns are pushed to the side of felled seam of the multilayer fabric and the formed multilayer fabrics are wound. |
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Liquid-permeable structured fibre cloth Liquid-permeable structured fibre cloth provides the optimum liquid absorption and distribution properties. The liquid-permeable structured fibre cloth comprises a first surface and a second surface, a thermoplastic fibres, a first area and a number of second discrete areas arranged around the first area. The second discrete areas form discontinuities on the second surface of the fibre cloth and comprise shifted fibres on the first surface of the fibre cloth; at least 50%, but less than 100% fibres have free ends extended aside from the first surface of the fibre cloth. The fibre cloth is characterised by a post-ageing thickness less than 1.5 mm, a vertical liquid capillary distribution height making min. 5 mm, a permeability min. 10,000 cm2 Pa·s) and a specific volume of the structured substrate min. 5 cm3/g. |
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Conductive fabrics comprising electrical pathways and method of their manufacture Conductive material comprises a conductive nonwoven fabric containing conductive carbon fibers in an amount of 5-50 wt % in combination with cellulose fibers and/or synthetic fibers. The nonwoven fabric comprises conductive and non-conductive zones that contain sonicated sections. The conductive material is used in production of heating devices, electronic switches, electronic devices, RF modification devices. In the electronic switch the conductive nonwoven fabric is spaced from the opposite conductive layer and the electrical connection is formed between them when they are pressed to each other. The electronic switch is used in production of a garment, a glowing symbol. The electronic product comprises an outer surface intended for location of plurality of keys, a first conductive layer located under the keys, the second conductive layer, spaced from the first conductive layer, and in which when pressing one of the keys an electric connection is created between the conductive layers. |
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New intermediate material intended for reduction of micro-cracking of composite articles Invention relates in particular to an intermediate product intended to obtain a composite article in combination with a resin matrix, consisting of at least two unidirectional layers of reinforcing fibers, and the fibers of each of the two layers are in different directions, where the layers are connected with each other by crosslinking or knitting by at least one sewing or knitting yarn. |
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Method of knitting tubular knitted goods Tubular knitted good, such as socks, is manufactured on a machine with a fixed number of needles in the needle cylinder, the parts of calf, panel, heel and toe and other parts are knitted successively by plated hosiery of at least two threads, one of which is relatively inextensible, such as cotton yarn, the second is elastane or complex elastomer, form the front and rear parts of the product in relation to the man's leg. At that, the front part of the panel and the foot are knitted by incomplete weaving with part of the inoperative needles with formation in place of the inoperative needles of broaches of the two threads, which together form vertical strips in the form of alternating columns of loops and broaches of threads, located across the width of the entire site, or symmetrically relative to the front edge (fold) of the sock, opposite the heel part at placing of the sock on the plane. |
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In the method for manufacturing needle-punched silica thermal barrier materials comprising preparing a fibrous mixture, forming fibrous web with aerodynamic method and formation of needle-punched web as feedstock, the silica fibers with the diameter of 5-7 microns and 8-20 microns are used or their mixture in a ratio of (10-90):(90-10)% which are divided in fibers on serrated drum, forming a fibrous web is carried on a conveyor of web-forming machine due to combining aerodynamic and mechanical methods. Then, the resulting fibrous web is subjected to the action of the needle board of the needle-punching machine equipped with percussion needles with serrations in both forward and reverse directions, forming the needle-punched web of thickness 3.0-10.0 mm is carried out per one process cycle, and forming of needle-punched web of thickness 12.0-30.0 mm - in two stages. First the webs-blanks are made with preliminary percussion in two directions per one pass of the web through the needle-punching machine. Then the webs-blanks are folded to the desired thickness followed by final punching in two directions per one pass through the needle-punching machine, the formed nonwoven needle-punched web enters the device of cutting and winding, and the silica fibers have a porous structure with pore size of 3-10 A (angstroms) and the production line for production of needle-punched silica thermal barrier materials, comprising a device of mixing fibrous mass, a feeding conveyor, a web-forming unit, a needle-punching machine which has a table with a needle board and with needles fixed on it. At that the percussion needles fixed to the needle board, are made with serrations in the forward and reverse directions. Moreover, the number of rows of needles with serrations in the forward direction located at the inlet to the needle board, is 2-3 times greater than the number of rows of needles in reverse direction of serrations disposed in the final part of the needle board and the two-sided percussion of web (from up to down and from the bottom up) is carried out per one technological progress of the needle in one needle-punching machine, percussion needle size and serrations is proportional to the diameter of the silica fiber. |
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Method consists of a continuous winding of strip textile material on a mandrel with a certain pitch, selected on the basis of the strip width and the number of layers of the product, stitching of the wound material and machining of the outer surface after impregnation and heat treatment. The stitching is carried out only of a part of the package of the strip layers adjacent to the mandrel in bending (folding) of the outer part of the strip layers directly in the place of stitching which is carried out with the location of seams and also with the winding pitch. |
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Process for production of absorbent cotton and absorbent cotton Method for producing absorbent cotton includes mechanical and optional chemical processing of cotton and/or bast fibers and/or man-made natural and/or synthetic artificial fibers containing cotton and bast of step of bleaching, souring, washing, pressing, loosening, drying and carding, for natural and man-made synthetic man-made fibers of steps of hoeing and carding, followed by hackling and the formation of a mixture of fibers with manufacturing of beat up mixed fiber and the production of cotton canvas from it. Fibers are isolated from a mixture of cloth or rags and textile waste by pulping raw material. Hygroscopic cotton fiber comprises a mixture based on fibers selected from the group of cotton, bast, natural, artificial, synthetic, artificial fabric. |
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Method of knitting knitwear with hood Method of knitting knitwear with a hood as follows: the individual parts of an item is knitted with flat knitting machine. New is the fact that they are joined together while knitting on both sides in the vertical direction, first stitches of body and left sleeves are connected and then stitches of body and right sleeve by successive shifts of body and sleeve parts relative to each other the required number of steps of needle and production is begun with knitting of bottom of each part of item with incomplete double purls and sleeves and body are knitted with incomplete slur, hood stand area is knitted with incomplete ribbed knitting, construction of body is knitted through the needle on the first front bed on odd needles, then on back bed through on even needles, then stiches of back bed is transferred to the front bed to the free even needles for after knitting of a raw in even needles of the front bed all the stiches are moved on the odd needles of the back bed and stiches on odd needles of the current row are knitted, then knit stiches are moved to the odd the needles of the front bed. |
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Absorbent cotton and method of its preparation Absorbent cotton consists of bast fibers or fiber mixture based on cotton and/or bast, and optionally synthetic fibers. As the cotton fibers, at least cotton fibers itself and/or cotton blowing are used; as bast fibers, at least flax fibers and/or flax tow, and/or hemp fibers, and/or hemp tow, and/or jute fibers, and/or jute tow, and/or kenaf fiber, and/or kenaf tow are used; as the synthetic fibers, the viscose rayon fibers and/or polyester fibers are used. The method of producing absorbent cotton comprises mechanical and chemical treatment of cotton and/or bast fibers containing stages of bleaching, souring, washing, wringing, loosening, drying, rippling and forming the mixture of fibers to prepare the scutched mixed fibers and production of cotton canvas of it. The organic synthetic fibers for the textile industry are optionally added to a mixture of cotton and/or bast fibers after chemical treatment. |
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Jersey fabric and clothing of lower layer with improved thermal protective properties made from it Fabrics are composed of mixed yarn made from a uniform combination of staple fibers of nylon and cotton. Such fabrics comprise the weight ratio of cotton to nylon, which is in the range of from about 55:45 to about 85:15, and these fabrics also have a mass that is in the range from about 3 to about 8 ounces/square yard. The jersey fabric of this type has the specified combination of good thermal protective properties provided. |
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Device of needle bar of flat-knitting machine Device of needle bar of a flat-knitting machine in which the needle bar is placed on either side of the recess for the needle bar, comprises a plurality of parallel needle plates, a plurality of knitting needles and sinkers placed between the needle plates, the sinkers control unit, moving parallel to a given direction of the sinkers, as well as, at least one control cam driven by the switching unit, when switching providing the movement and rotation of the sinkers in the direction of the recess for the needle bar. At that, the unit performs the switch in accordance with the direction of the movement. The needle plates provide the presence of at least one presser needle panel which limits the vertical movement of the knitting needles. In the switching unit there is a magnetic element corresponding to the presser needle panel which generates a magnetic attraction with this panel. Between the adjacent needle plates the presence of the spacer is provided, which limits the horizontal movement of the sinkers. |
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Method of making polymer filtration material and filtration material Invention relates to high-efficiency filtration materials for superfine cleaning of gases and air and ban be used in production of aerosol filters, individual means of respiratory system protection against various aerosols and, if combined with other filtration materials, as a finishing layer. Material with the structure of mix of micron and submicron fibres is produced by electrostatic forming of nonwoven material composed of two working polymer fibre-forming polysulfone-based solutions in electrostatic field at potential difference of 10-150 kV and weight hour space velocity of forming per one capillary of 0.1-0.43 cm3/min for microfibers and 0.01-0.12 cm3/min for submicron fibres. Material consists of polysulfone fibres 2.5-4.6 mcm and 0.08-0.17 mcm in diameter at relationship between lengths of micron and submicron fibres of 1:17-25 and features hydrodynamic resistance at filtration rate of 1 cm/c varying from 20 kPa to 30 kPa. |
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Invention relates to thermoreactive polymers. Described is composite, which includes: formaldehyde-free binding substance, which includes polyvinyl alcohol and one or more linking agents for hydroxyl polymer, selected from sodium trimethaphosphate, sodium trimethaphosphate/sodium tripolyphosphate and phosphorus oxychloride, polyamide/epichlorohydrin linking agents, cyclic amide condensates, and their combinations, in which polyvinyl alcohol and one or more linking agents for hydroxyl polymer are free of aldehydes; and substrate of mineral wool, processed with water solution of binding substance. Method of obtaining claimed composite is described. |
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Non-woven material and method of producing such material Non-woven material and method of forming it provide for the formation of generally flat or planar self-supporting core of inorganic base fiber and organic binding fiber, preferably using an aerodynamic canvas-forming head. In some preferred versions, the base organic fiber of non-woven material has a basic weight of about 3000 g/m2 or more. Preferably, the organic binding fiber has a binding component and a structural component in single fiber filaments. In one aspect, the structural component of the organic binding fiber has a composition effective to ensure its durability, thus, the non-woven fabric can be cut manually with minimal effort. |
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Fibrous composite materials and their application in vacuum insulation systems Invention described fibrous composite material intended to be used as insulating material, which includes high-efficiency polymer fibres characterised by fusion temperature or glass transition temperature at least of 200°C and heat conductivity of solid phase of not more than 0.7 W/(mK), and binding fibres. Content of high-efficiency polymer fibres comprises at least 70 wt % while content of binding fibres does not exceed 30 wt %. Fibrous composite material has density of 50 to 300 kg/m3, which is measured at load in the direction perpendicular to the plane of the main fibre orientation of 1 mbar to 1000 mbar, as well as layered location of fibres, at least some part of which is connected to each other at contact points that can be created owing to softening of binding fibres and high-efficiency polymer fibres have cross section of out-of-round shape. Besides, the application describes a heat insulation system that includes the above fibrous composite material. |
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Control device of sinkers for flat-knitting machines Control device of sinkers for flat-knitting machines, which is located on the transversal plate over a set of knitting needles and drives the parallel pivotally mounted sinkers pivoting between the knitting needles. Control device of sinkers comprises a base, a unit of transmission of motion associated with the base with the ability of a driving movement, the first control cam and the second control cam which are pivotally connected to the unit of transmission of motion and a switching unit connected to the unit of transmission of motion. The switching unit comprises at least one connecting element connected to the unit of transmission of motion, the switching unit connected to the connecting element, and an elastic element located around the connecting element for providing the pressing force of the switching unit to a transversal plate. The switching unit comprises a magnetic attracting unit on one side, facing the transversal plate, to attract the transversal plate due to magnetic force. |
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Looped pressure mechanism and sinker of flat-knitting machines Looped pressure mechanism of flat-knitting machines comprises a needle bed, a base on which a number of sinkers and knitting needles is mounted, separated by spacers, the holder of the cam which is located over the sinker and on which the cam is mounted having a guide groove on which the sinkers move by translational motion, at that each sinker comprises an element of pressing the yarn for its pressing and forming a loop, the rotary protrusion that moves along the guide groove and the recess of rotation for connection to the support axis, at that the support axis extends through the a lower part of spacers in the vertical plane. The sinker for flat-knitting machines comprises a recess of rotation in the lower part, a rotary protrusion that extends forward at the upper part of the sinker and the yarn pressing element protruding beyond the line of connection of rotary protrusion and recess of rotation, to press the yarn and form loops. |
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Device for hand knitting is designed to protect the strands of yarn from tangling by separation and direction of individual strands of yarn. At that the device is a tube with a slot that fits on the knitting needle through the slot, on which perpendicular to its longitudinal axis the rings are fixed, designed for passing the yarn. The tube is made with the ability to fit tightly the needle through resilient properties of the material, and can be rotated on the needle in any direction, at that the ends of the tube are made conical. Each ring is made with the ability of placement the required thread in it easily and quickly on the basis of a paper clip, without the possibility of spontaneous loss it out of the ring in the knitting process, the walls and the ends of the rings have smooth rounded edges providing passage of thread without engagement. At that the device is provided with a cut and made with the ability to disconnect it on the cut line, and with the ability to add to the device the additional required number of elements in the case of work with a large number of threads, at that the rings limit the lateral movement of the corresponding threads, not limiting their longitudinal movement, while preventing tangling of threads with each other and their direct sliding contact with the fingers in the process of knitting, and providing the possibility to put off the product if necessary. |
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Invention relates to fibre made from a polyethylene composition, a method of making said fibre, fabric made from said fibres and a method of making said fabric. The fibre is made from a polyethylene composition which contains at least 80 wt % of a (co)polymer, which contains at most 100 wt % links obtained from ethylene and less than 20 wt % links of one or more α-olefin comonomers. The composition has density of 0.920-0.970 g/cm3, molecular weight distribution (Mw/Mn) of 1.70-3.5, flow melt index (I2) of 0.2-1000 g/10 min, molecular weight distribution (Mz/Mw) of less than 2.5 and vinyl unsaturation level of less than 0.1 vinyl groups per thousand carbon atoms present in the backbone chain of said composition. The disclosed fibre can have denier value per filament less than 50 g/9000 m, breaking strength of 0.1-15 g/denier and relative elongation less than 1500%. |
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Moisture permeable sheet and method of its manufacture Moisture permeable sheet is provided that is suitable for use as a moisture permeable upper sheet for a garment, absorbing human wastes. One surface 58 of the surfaces 57, 58 of moisture permeable sheet 11 is equipped with ledges 61 and cavities 62 extending parallel to each other in the longitudinal direction A and alternating in the transverse direction B. One surface 58 is additionally equipped in at least corresponding ledges 61 with indented parts 70. The thermoplastic synthetic fibers forming the moisture permeable sheet 11 in the respective indented parts 70 are collected together more densely than in regions surrounding the respective indented parts 70, and thus the original fiber shape of the individual thermoplastic synthetic fibers is retained. |
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Non-woven fabric and method of manufacture of such material Non-woven fabric and method of its formation provide for the formation of generally flat or plain self-supporting core of inorganic base fiber and organic binding fiber, preferably using an aerodynamic web-forming head. In some preferred versions, the organic base fiber has the fiber strength with the rupture load of about 10 g or less and an elongation of about 20 percent or less. Preferably, the organic binding fiber has a binding component and a structural component in single fiber filaments. In one aspect, the structural component of the organic binding fiber has a composition effective to ensure its strength, thus, a non-woven fabric can be cut manually with minimal effort. |
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Water-soluble resin composition Invention relates to a water-soluble resin composition, a method of producing such a resin composition, use of the resin composition as binding material for non-woven fibre material, particularly insulation materials, and a method of producing such insulation material. The water-soluble resin composition contains a resin which is a product of reaction of aldehyde, preferably selected from a group including formaldehyde and (lower alkyl (C1-C4)) mono- or di-aldehydes or formaldehyde precursors, which can form formaldehyde directly in the resin composition, and a hydroxyl-aromatic compound selected from a group including substituted and unsubstituted mono- or polycyclic phenols, preferably from phenol, said composition further containing: an amino compound containing 2-6 amino groups, which is selected from a group comprising urea, dicyandiamide and melamine, and where the amino compound can also be a mixture of two or more different amino compounds; and a sugar alcohol. The resin has initial molar ratio of aldehyde to the hydroxyl-aromatic compound from 2.3 to 5.5; the ratio of the resin to the amino compound plus the sugar alcohol ranges from 45:55 to 70:30 pts.wt; the ratio of the amino compound to the resin lies between 20:80 and 50:50 pts.wt; and the ratio of the sugar alcohol to the resin plus the amino compound lies between 5:95 and 30:70 pts.wt. The sugar alcohol has a boiling point higher than the setting point of the resin. |
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Seam for fabric for paper production and industrial fabric and method of its manufacture In the fabric a material is placed that absorbs laser energy and which is applied on the fabric in a controlled manner. The laser source is focused in some areas of this fabric, and partial melting and permanent welding of the fabric is carried out. |
Another patent 2513070.