Technical fabric strip

 

(57) Abstract:

Fabric lining relates to the textile industry, in particular to the technical fabric strip used in the manufacture of tires, for example for sealing raw rubber blanks. The fabric strip may be also used in the food industry for transporting confectionery masses. Technical fabric strip is formed by interweaving fibrillated synthetic flat main thread and single, not divisible in the longitudinal direction without fracture filling threads. The fabric strip has a coefficient of surface of 0.11-0.13 and bending modulus of 9.0-11,00 ratio modules bending on the basis and on a duck is 1.0. Fabric lining offers optimum stability of shape and specific stiffness.

The invention relates to the textile industry, in particular the production of technical fabric strips used in the manufacture of tires, for example for sealing raw rubber blanks. In addition, the inventive fabric strip can be used in the food industry for transporting confectionery masses.

One of the main requirements for technical balsausa indicator of the structure of the fabric, and specific rigidity, characterized by the module's bend.

Famous cloth strips blanks pneumatic tire formed weave woven mnogoelementnykh main threads and weft monofilament yarns, such as polyester or polyamide fibers.with. THE USSR №1030434, D 03 D 15/00). The coefficient of surface known fabric strip is 0.35, the module's bend is 1,69 when the ratio of modules bending in the longitudinal and transverse directions, is equal to 0.15.

The disadvantages of the known pads are low specific stiffness in the transverse direction (bending modulus on a duck is 4,4) and the lack of overall stability of shape.

Closest to the technical essence and the achieved result is a technical fabric strip formed weave woven mnogoelementnykh main thread and flat fibrillated weft threads (RF patent No. 2162494, D 03 D 15/00). The coefficient of the surface of the fabric strip is 2.95, and the module's bend 8.3 when the ratio of modules bending in the longitudinal and transverse directions of 0.015.

The disadvantages of this technical fabric strip are high specific stiffness in the transverse napraw longitudinal and transverse directions leads to the formation of folds on the surface of the strip, consequently, to the formation of scars on the surface of the raw rubber blanks. In addition, the fabric has a high surface density (260 g/m2) and thickness (0.67 mm), and therefore, a high stability of shape. This leads to a significant deterioration in the performance of the strip, in particular to a sliding her with the guide rollers of the feeder Assembly machines.

The aim of the present invention is the creation of a technical fabric strip with an excellent stability of shape and specific rigidity, characterized by the modulus of bending.

This objective is achieved in that the fabric strip is formed by interweaving fibrillated synthetic flat main thread and single, not divisible in the longitudinal direction without fracture filling threads. The fabric strip has a coefficient of surface equal to 0,11-0,13, and the module's bend 9,0-11,0 at the ratio of modules bending in the longitudinal and transverse directions, equal to 1.0. The surface density of this strip is 19015, and the thickness equal to 0.55 mm

The inventive fabric has a smooth surface, and therefore, the minimum adhesion to raw rubber pieces (not baleerie values of the coefficient of surface and modulus of bending of the strip above values, specified in the formula, there is a sharp increase its rigidity in the longitudinal direction, which leads to difficulty of the process of rounding the strip guide rollers of the feeder and the loss of formetanate in the transverse direction. With further increase of the rigidity in the longitudinal direction of a possible fracture of the strip at the time of bending around its rollers.

With decreasing values of the coefficient of surface and modulus of bending of the strip below the values specified in the formula, there is a loss of formetanate both longitudinal and transverse directions, which leads to the formation of folds on the surface of the strip, and thus to mechanical damage to the surface of raw rubber blanks.

The invention is illustrated by the following examples.

Example 1. Technical fabric strip is made by interweaving the main polypropylene flat fibrillated yarns 165 Tex and weft polyester single yarns with a diameter of 0.17 mm, the Coefficient of the surface is 0.11, bending modulus strip 9,0 when the ratio of modules bending in the longitudinal and transverse directions of 1.0.

Technical fabric strip has a surface PL is rigidity. The fabric strip has a minimum adhesion to raw rubber blanks.

Example 2. Technical fabric strip is made by interweaving the main polypropylene flat fibrillated yarn of 110 dtex and weft polyamide single thread diameter is 0.22 mm, the Coefficient of the surface is 0.13; bending modulus of the fabric strip at a ratio of 11.0 modules bending in the longitudinal and transverse directions of 1.0. The surface density of the spacers is equal to 175 g/m2and the thickness of 0.54 mm Technical fabric strip has a smooth surface, has optimal stability of shape and specific rigidity with minimum adhesion to raw rubber blanks.

Example 3. Technical fabric strip is made by interweaving the main polypropylene flat fibrillated yarns 140 Tex and polypropylene weft single thread with a diameter of 0.2 mm Coefficient of the surface of the strip is 0.12; the module's bend equal to 10.0 when the ratio of modules bending in the longitudinal and transverse directions of 1.0. Technical fabric strip has a surface density equal to 190 g/m2the thickness of 0.55 mm, has a smooth surface, the optimal stability of shape and specific ill allaamah fabric strip passes performance testing at JSC “Yaroslavl tyre plant”. During testing technical fabric strip showed high workability when assembling the tire in the feeder Assembly machines. On the surface of the fabric strip is not formed of folds in both longitudinal and transverse directions, and is not violated thereby the integrity of the raw rubber blanks. The adhesion of the fabric strip does not exceed 0,003 kN/m Thick strips at the moment exceeded the thick strip of the prototype.

Technical fabric strip formed by weaving synthetic basic and weft threads, wherein the main thread is made flat fibrillated and weft are single yarn, not divisible in the longitudinal direction without fracture, the coefficient of the surface of the fabric is 0.11 to 0.13, and the module's bend equal 9,0-11,0 when the modules bending in the longitudinal and transverse directions equal to 1.0.

 

Same patents:

Fencing fabric // 2228398

The invention relates to the textile industry and can be used in flour milling, food processing, printing, electronic industry and for screen printing

The invention relates to the textile industry and can be used to generate tissues that are intended for sewing special service military personnel, firefighters, welders and metal workers of hot workshops, etc

The invention relates to the production of technical fabrics and touches of polyester cord fabric for frame radial tires, consisting of polyester warp and polyamide weft threads, and the warp threads used thread with equal or unequal preliminary and final twists 250/250-510/470 kr/m depending on the linear density of the original threads in one, or two, or three additions, the density of the fabric in the warp is 75-160 threads per 10 cm, and the weft threads are used thread with a density of 20 to 40 dtex, a breaking elongation before impregnation and heat treatment 200-300% and frequency of threads 6-15 threads per 10 cm

The invention relates to the manufacture of protective textile materials and relates to fire resistant fabric containing unequal major and weft threads, the main thread contain staple fiber or filament and have a limiting oxygen index equal to at least 27, and the weft yarn contain natural fibers, and the ratio of the density of threads in the warp and weft in the fabric is at least 1,0
The invention relates to the technology of aramid fabrics made from crystallized yarns, and can be used for manufacturing of protective clothing firefighters and other protective service
The invention relates to the technology of aramid fabrics made from crystallized yarns, and can be used for manufacturing of protective clothing firefighters and other protective service

FIELD: textile industry, in particular, providing textile surface with at least one side having increased degree of visual contrast.

SUBSTANCE: textile surface is produced on the basis of threads or filaments of at least three types, namely, extinguishing threads or filaments, thermally stable threads or filaments and threads or filaments with increased degree of visual contrast.

EFFECT: enhanced protection from elevated temperatures and free flame.

10 cl, 1 dwg

FIELD: textile industry, in particular, providing textile surface with at least one side having increased degree of visual contrast.

SUBSTANCE: textile surface is produced on the basis of threads or filaments of at least three types, namely, extinguishing threads or filaments, thermally stable threads or filaments and threads or filaments with increased degree of visual contrast.

EFFECT: enhanced protection from elevated temperatures and free flame.

10 cl, 1 dwg

FIELD: pulp-and-paper industry.

SUBSTANCE: web has system of filaments extending along machine, system of first filaments extending transverse to machine, system of second filaments extending transverse to machine and interwoven with filaments extending along machine in first zone along one of two transverse edges of web for papermaking machine between system of first filaments and stitch loops of second weaving pattern, system of third filaments extending transverse to machine and interwoven with filaments of system extending transverse to machine in second zone along other of two transverse edges of web for papermaking machine between system of first filaments and stitch loops of third weaving pattern. System of third filaments has at least two filaments extending transverse to machine. Second zone is characterized in that denier of at least some of third filaments differs from that of first filaments, gaps between at least some of third filaments differ from those between first filaments, and third weaving pattern differs from that of first pattern.

EFFECT: increased efficiency and improved quality of seam of web for papermaking machine.

62 cl, 5 dwg

Technical fabric // 2258105

FIELD: textile industry.

SUBSTANCE: invention relates to manufacture of fire-protection fabrics with heat-protection properties destined for militaries, firemen, foundry workers, welders, metallurgists, and so on. Fabric contains, in warp and weft, staple yarn including staple fibers based on triple aromatic copolyamide or mixture of triple aromatic copolyamide based fibers with natural fibers, or mixture of triple aromatic copolyamide based fibers with artificial fibers, or mixture of triple aromatic copolyamide based fibers with synthetic fibers, wherein triple aromatic copolyamide is expressed by following general formula: [-NH-R1-NHCO-R2-CO-]n[-NH-R3-NHCO-R2-CO]m[-NH-R2-NHCO-R2-CO]p, where n=0.05-0.4, m=0.6-0.95, p=0.05-0.4; R1-3 denote bivalent aromatic radicals in p-position, of which R1 is heterocyclic radical of formula , R2 p-phenylene, and R3 radical of formula . More specifically, natural fibers utilized are cotton, flaxen , and wool fibers; synthetic fibers are polyester(ether) and polyacrylonitrile fibers; and artificial fibers are fire-resistant viscose fibers.

EFFECT: increased resource of raw materials and assortment possibilities, and improved working characteristics of fabric.

FIELD: fabric used as reinforcing carcass of technical articles with polymeric covering, preferably used as protective layer-breaker for rubberized cord of conveyor belts, rubberized sleeves and other technical articles.

SUBSTANCE: biaxiisotropic duck fabric is manufactured by double-layer weaving of warp and weft threads having similar composition of raw material and linear density of threads and similar pattern repeat of weavings in warp and weft. Fabric layers are connected with each other simultaneously by all warp and weft threads passing from layer to layer. In weaving pattern repeat, each warp and weft thread forms two long three-thread overlaps and two eight-thread single-thread overlaps. Any half the pattern of eight-thread weaving pattern repeat of 4x8 size or 8x4 size along warp and weft threads, after being turned to the right or to the left through right angle, coincides with respective half the pattern repeat of opposite thread system, and upon turning through 180° it coincides with pattern of second half of similar pattern of thread system, with fabric tenacity coefficient being within 3.0-10. Fabric produced has warp and weft rupture loading of at least 140 kgf/cm and tenacity coefficient of at least 3.0.

EFFECT: improved quality and wider range of duck fabrics.

1 dwg, 1 tbl

FIELD: textile industry, in particular, duck fabric used as endless belt for forming and transportation of nonwoven fibrous cloth for manufacture of nonwoven fabric.

SUBSTANCE: duck fabric has cloth carrier surface comprising threads having rough surface, said threads hindering displacement, more precisely, sliding of nonwoven fibrous cloth relative to cloth carrier surface. These threads with rough surface preferably define elongated overlaps on cloth carrier surface in one or two directions, i.e., in cloth movement direction in machine and/or in direction perpendicular to fabric movement direction in machine.

EFFECT: increased efficiency by preventing displacement or sliding of nonwoven cloth relative to belt surface.

26 cl, 6 dwg

FIELD: production of fabrics for manufacture of protective clothing, preferably protective vests and plates, as well as for sewing of special sportive protective fencer's clothing, such as vests, side and chest protective means used during exercising.

SUBSTANCE: biaxiisotropic fabric is manufactured in bark weaving pattern from warp and weft threads of similar composition and linear density and with similar warp and weft repeat pattern. In weaving repeat pattern, any one of two halves of six-thread weaving repeat pattern sized 3x6 or 6x3 along warp or weft threads, turned through 180 deg, is identical to other unturned half. Fabric has one and a half layers which are connected with one another through all warp and weft threads. Said threads are transferred from one layer to another, and each of warp and weft threads forms two elongated double-thread overlaps and two short single-thread overlaps in weaving repeat pattern. Diagonal sections of weaving repeat pattern define four triangular fragments, each of which, when turned through 180 deg, coincide with pattern of respective symmetrical non-turned fragment. Biaxiisotropic fabric of such structure has resistance coefficient of at least 0.9 and relatively low flexural rigidity (not in the excess of 5/0 gf/cm).

EFFECT: increased efficiency, improved protective properties and wider range of usage.

2 dwg, 1 tbl

FIELD: production of duck fabrics.

SUBSTANCE: duck fabric is produced from longitudinal and transverse threads, where longitudinal threads are multifilament threads including multiplicity of single thread filaments and at least one thermally fusible filament of thermoplastic material. This at least one thermally fusible filament of thermoplastic material has lower melting point than single filaments of multifilament thread. After thermal processing, multifilament threads become harder and single filaments defining said multifilament threads are secured in conjunction with thermoplastic material of said at least one thermally fusible thread.

EFFECT: improved quality of duck fabric due to keeping of orientation and continuity of connecting loops necessary for bonding of fabric.

25 cl, 5 dwg

Thermal fabric // 2278190

FIELD: production of fabrics which generate heat by means of power source and may be used for manufacture of clothing, seats, quilts, etc.

SUBSTANCE: thermal fabric comprises non-conductive thread, heating thread with positive temperature coefficient, and two current-conductive terminals. Heating thread comprises core, enclosure made from matrix including embedded current-conductive particles, and isolating sheath.

EFFECT: provision for creating fabric free of wires and possessing the function of self-regulating heating.

29 cl, 5 dwg

FIELD: textile industry.

SUBSTANCE: fabric comprises superthin thread having weight number of single filament of 0.001-0.3 denier and thick thread having weight number of single filament of 0.5-5 denier. Superthin thread contains mass colored component selected from the group comprising carbon black, pigments and colorants. Fabric has washing stability level exceeding 3 and light resistance level exceeding 5. Since superthin thread comprises as main component mass colored component such as carbon black or like component, additional coloring process is not needed, and washing stability and light resistance are high.

EFFECT: simplified manufacture procedure owing to reduced number of additional operations.

4 cl, 1 tbl, 5 ex

Up!