Twisted long article from mixed textile fabrics or scrap material

FIELD: metal processing.

SUBSTANCE: long twisted article for producing an article form of yarn, string, rope, cable, that is made from mechanically twisted from 10 to 50 turns per metre of bundle of bands with width from 10 to 80 mm, obtained from wastes mixed textile fabrics or scrap mixed textile fabrics, wherein material from which bands are made, selected from wastes of mixed textile fabrics or scrap, has surface density of not less than 0.9 g/cm3.

EFFECT: high density.

1 cl

 



 

Same patents:

FIELD: instrumentation.

SUBSTANCE: invention can be used in control means for cable motion parameters reading and digitising in various hardware and processing systems. Cable comprises body composed by metallic, nonmetallic and/or combined threads made up of twisted, coiled and/or braided strands and/threads. At least one outer strand comprises at least one magnetic thread with permanent magnet properties and/or magnetising thread to write magnetic marks.

EFFECT: well-fixed magnetic marks, long-term activity, simple design, high noise immunity, lower costs.

10 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: invention proposes a rope structure that contains an organic core with electronic markers - RFID transponders with the number of antennae of not less than the number of gaps between strands in one layer, which are discretely integrated into its structure, and their cross-sectional size provides arrangement of antennae in gaps between strands in one layer. Antennae are made from nonmagnetic material, coated with an insulating layer and laid into gaps between strands in one layer; at that, the gaps are filled with polymer material.

EFFECT: creation of the structure of the rope having additional technical characteristics, and namely records, storages, read-outs and transfers of information in space and time, as well as flaw detection of ropes as per available gaps between strands in one layer.

3 cl, 1 dwg

FIELD: transport.

SUBSTANCE: elevator pull elements has, at least, one shell 46 of sheath 44 of higher adhesion. Proposed method comprises removing material from pull element surface. Note here that removed material represents surface mix of polyurethane and its admixtures. Pull element, hence, includes material to be removed from sheath material. One version comprises sheath outer surface has baring of polyurethane including no admixtures. In one version, mechanical removal of, at least, a portion of material rich in amides from surface 46 is used after extrusion of sheath onto pull expansion elements 42. In another version, chemical etching is used. Third version uses breakage of sheath surface integrity.

EFFECT: better friction properties.

20 cl, 9 dwg

FIELD: construction.

SUBSTANCE: reinforcement rope consists of a central wire 1 (dwg.1), around which there are winding wires 2 wound. Surface sections of wires 2, contacting with each other and the surface of the wire 1, are made in the form of spirally arrange flat sites 3. On the external section of the rope wires 2 surface there is a periodical profile applied, made as inclined ledges 4 above the generatrix 5 of the pressed surface of the rope. The wires 1 and 2 are arranged so that the contour that connects external sections of winding wires along the tangent is brought near a triangle with rounded corners, for instance, according to the pattern 1+6+3. The reinforcement rope is made in the following manner. Wires 1 and 2 of round section are made and wound into a rope. After the winding, a periodical profile is applied onto the external section of the rope wires 2 by means of cold deformation along the external surface of the wires 2 in the closed shaped roller calibre of the periodical profile. Simultaneously with application of the periodical profile on the rope surface in the specified calibre, plastic pressing of the rope is carried out, as a result contact sites 3 are formed.

EFFECT: development of a self-straightening reinforcement element of large length with the ratio of strength and dimensions of the section at the level of the reinforcement steel of classes A500 and A600, other characteristics not lower than the reinforcement steel of classes A500 and A600.

6 cl, 1 dwg

FIELD: textile; paper.

SUBSTANCE: rope (1) from synthetic fibres consists of twisted strands (7,8,9,10) arranged in at least one layer (2,3,4). In the rope (1) of synthetic fibres the strands of one layer are mutually distant from each other. Due to the distance (d1), at which the strands are arranged from each other, strands (7) of the external layer (2) in radial direction (r) are arranged with the possibility of free movement in direction of the rope centre and radial pressure at the strands (8, 9) of the first internal layer (3). Radial pressure from a layer to a layer increases to inside. Also a bearing and a driving facility is proposed for a lift, at least with two ropes described above, closed by a joint solid shell, a lift device and the method of rope manufacturing.

EFFECT: extended service life of the rope and reliability in operation.

16 cl, 3 dwg

FIELD: textile, paper.

SUBSTANCE: safety braided cord of threshold operation comprises a core, made of bundle of rectilinearly arranged threads, around which there are at least three layers of braiding arranged coaxially one in the other shaped in the form of thread-like body of tubular shape, formed by braiding of even number of braiding threads separated into two equal parts, in every of which threads are arranged along spirals of the right and left directions. External layer of braiding is bearing, and inner layer and core made of equal quantity of textile threads identical in raw material composition and linear density, serve as energy-absorbing elements ruptured under action of threshold load. At the same time angle of inclination of braiding threads in each layer to longitudinal axis of cord is determined by the following equation: αm= 15 + 30[(m-1)/(n-1)], where: αm - angle of inclination of braiding threads to longitudinal axis of cord in degrees; m - serial number of braiding layer, starting from the inner one; n - common number of braiding layers. And threshold of operation is determined by the following formula: Pop = P1[1 + 0.75(n - 1)], where Pop - threshold of operation in kgf; P1 - total rupture load of core threads in kgf; n - integer number of braiding layers in cord. At the same time total rupture load of braiding threads of external layer at least 10 times exceeds value of cord threshold operation.

EFFECT: in case of emergency actuation, invention provides buffering and suppression of impact load due to conversion of kinetic energy of falling secured body into operation of braided layers textile threads rupture.

3 dwg, 1 tbl

FIELD: textile, paper.

SUBSTANCE: safety-rescue braided cord comprises a bearing core, made of bundle of rectilinearly arranged threads, located inside protective shell arranged in the form of thread-like body of tubular shape, formed by braiding of even number of braiding threads separated into two equal parts, in every of which threads are arranged along spirals of the right and left directions. Between core and protective shell, cord additionally comprises a buffer layer formed by at least two wrapping threads arranged around bearing core along spirals of one direction. At the same time pitch of buffer layer spirals is determined by formula ts=375/D0m0, where ts - pitch of spirals, mm; D0 - density of protective shell braiding threads, n/cm; m0 - number of wrapping threads forming buffer layer, besides bending stiffness of cord does not exceed 55 gs·cm.

EFFECT: low bending stiffness of cord.

1 tbl, 2 dwg

Synthetic rope // 2390595

FIELD: textile, paper.

SUBSTANCE: synthetic rope comprises core from high module elements on the basis of aramid fibers and coating. Coating represents latex-resorcin-formaldehyde composition at weight ratio of coating to threads of synthetic rope of 1.0-20.0%. At the same time synthetic rope may be arranged with braiding from synthetic complex threads or without it.

EFFECT: development of synthetic rope having high strength of connection to resin, and also resistant to multiple deformations and heat effect.

2 cl, 1 tbl

FIELD: textile, cotton.

SUBSTANCE: this invention refers to the textile industry and concerns the production of the plaited rope. The offered safety and life-saving rope is based on the plaited cord of the spiral plaiting and consists of the supporting core located inside the protecting coat. Protecting coat is made in the form of the sleeving cord. All the wires of the protecting coat plaiting are interwoven and are located along the spiral of one direction simultaneously overlapping two neighbouring wires and after that they are overlapped with the same wires. The basic core is a one-twisted cord with the spin in one direction opposite to the direction of the spirals of the protecting coat plaiting wires. The inclination angle of the twisted core coils equals the inclination angle of the spirals of the protecting coat plaiting wires. The rope is to be used for the kitting-up of the fire fighting, mine-rescue and alpinist equipment.

EFFECT: production of the rope which is more resistant to the abrasion and which is less hard for the bending under its own weight.

2 cl, 1 dwg, 1 tbl

FIELD: physics.

SUBSTANCE: long-length twisted product is made by twisting of N single-type long-length elements with linear-point contact, where N>1. Twisting pitch in long-length elements makes L<50 mm. Every long-length element comprises at least one fiber or one wire with thickness of d<50 mcm.

EFFECT: increased tensile strength.

8 cl, 2 tbl

FIELD: textiles, paper.

SUBSTANCE: invention relates to the preparatory phase of obtaining the charge on the basis of carbon fibre, as well as obtaining the carbon wool for manufacturing carbon parts and bearing members. The method of manufacturing pneumo-entangled carbon fibre comprises supplying of carbon fibre, its cutting and moving the segments of carbon fibre into the air stream. At that the carbon fibre is cut in the guide pipe, and then the resultant carbon fibre segments are fed into the air stream of the barrel at an angle of 45∈±10°. After that the cut carbon fibre is directed into the corrugated hose, where the turbulent air stream is created with the boundary layer exceeding the corrugation radius. The pneumo-entangling is performed in the corrugated hose which length is not less than two air barrel diameters, after that the pneumo-entangled carbon fibre is placed in the container.

EFFECT: increased productivity of the method of cutting and pneumo-entangling of carbon fibre, increase in intensity and efficiency of pneumo-entangling process.

4 dwg

FIELD: manufacture of fibers.

SUBSTANCE: the net includes the sides of the net mesh made of net weaving threads, which possess physical properties featured by meshes varying or alternating along the row of collinear sides (26). The nonhomogeneous medium obtained by formation of the net mesh sides by such a way, possessing variable physical properties, may be transformed for reduction or decrease of vibrations in the net, for example, of harmonic (resonance) oscillations. Besides, the net weaving threads, due to which the vibration is reduced, may be selected, which also results in reduction of material consumption required for manufacture of the net, which features the same strength or exceeds the strength of a common net of machine manufacture. Due to reduced vibration, the modified net has a longer service life in comparison with a common net of machine manufacture.

EFFECT: enhanced strength of the net, reduced probability to inflict injuries to fish escaping through the holes of the net meshes.

32 cl, 4 dwg, 3 tbl

FIELD: chemical industry; production of melange polyester threads.

SUBSTANCE: the invention is dealt with chemical industry, production of chemical threads in particular, with production of the melange polyester threads used in production of upholstery fabrics, cloths for a furniture industry, production of fire hoses. The method of production of the chemical thread provides for molding from a granulate melt of micromatted polyethylene terephthalate of uncolored and colored pre-oriented multifilament threads, a drawing up and joining of components of a filament of different colors by action on them with directed streams of compressed air, by the threads feeding as two streams in the form of the core -type and run-up type filaments into a processing chamber with a feed rate of a core thread less than feed rate of the run-up type thread in respect to the wind-up speed of a filament. The method provides, that before feeding into the processing chamber a stream with core threads is subjected to treatment with demineralized water under pressure of 2.5-3.5 atmospheres. After the joining of the streams of the filaments in the processing chamber the thread is finally drawn up by 1.5-2.5 %, then it is heated up at the temperature of 140°-200° С. The technical result is an increase of compactness and strength of a thread.

EFFECT: the invention ensures production of threads of increased compactness and strength.

1 tbl, 4 ex

The invention relates to the production of chemical fibres, in particular the production of heathered polyester yarns used in the production of fabrics for the automotive industry
The invention relates to light industry and can be used for texturing yarn

FIELD: chemical industry; production of melange polyester threads.

SUBSTANCE: the invention is dealt with chemical industry, production of chemical threads in particular, with production of the melange polyester threads used in production of upholstery fabrics, cloths for a furniture industry, production of fire hoses. The method of production of the chemical thread provides for molding from a granulate melt of micromatted polyethylene terephthalate of uncolored and colored pre-oriented multifilament threads, a drawing up and joining of components of a filament of different colors by action on them with directed streams of compressed air, by the threads feeding as two streams in the form of the core -type and run-up type filaments into a processing chamber with a feed rate of a core thread less than feed rate of the run-up type thread in respect to the wind-up speed of a filament. The method provides, that before feeding into the processing chamber a stream with core threads is subjected to treatment with demineralized water under pressure of 2.5-3.5 atmospheres. After the joining of the streams of the filaments in the processing chamber the thread is finally drawn up by 1.5-2.5 %, then it is heated up at the temperature of 140°-200° С. The technical result is an increase of compactness and strength of a thread.

EFFECT: the invention ensures production of threads of increased compactness and strength.

1 tbl, 4 ex

FIELD: manufacture of fibers.

SUBSTANCE: the net includes the sides of the net mesh made of net weaving threads, which possess physical properties featured by meshes varying or alternating along the row of collinear sides (26). The nonhomogeneous medium obtained by formation of the net mesh sides by such a way, possessing variable physical properties, may be transformed for reduction or decrease of vibrations in the net, for example, of harmonic (resonance) oscillations. Besides, the net weaving threads, due to which the vibration is reduced, may be selected, which also results in reduction of material consumption required for manufacture of the net, which features the same strength or exceeds the strength of a common net of machine manufacture. Due to reduced vibration, the modified net has a longer service life in comparison with a common net of machine manufacture.

EFFECT: enhanced strength of the net, reduced probability to inflict injuries to fish escaping through the holes of the net meshes.

32 cl, 4 dwg, 3 tbl

FIELD: textiles, paper.

SUBSTANCE: invention relates to the preparatory phase of obtaining the charge on the basis of carbon fibre, as well as obtaining the carbon wool for manufacturing carbon parts and bearing members. The method of manufacturing pneumo-entangled carbon fibre comprises supplying of carbon fibre, its cutting and moving the segments of carbon fibre into the air stream. At that the carbon fibre is cut in the guide pipe, and then the resultant carbon fibre segments are fed into the air stream of the barrel at an angle of 45∈±10°. After that the cut carbon fibre is directed into the corrugated hose, where the turbulent air stream is created with the boundary layer exceeding the corrugation radius. The pneumo-entangling is performed in the corrugated hose which length is not less than two air barrel diameters, after that the pneumo-entangled carbon fibre is placed in the container.

EFFECT: increased productivity of the method of cutting and pneumo-entangling of carbon fibre, increase in intensity and efficiency of pneumo-entangling process.

4 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to chemical engineering of fibre polymer materials and yarns and fibres, consisting of copolymer fibres, and methods for preparing them. Yarn comprising copolymer derived from copolymerisation of para-phenylenediamine, 5(6)-amino-2-(p-aminophenyl)benzimidazole, and terephthaloyl dichloride, wherein ratio of moles of 5(6)-amino-2-(p-aminophenyl)benzimidazole to moles of para- phenylenediamine is 30/70 to 85/15; said yarn having a sulphur content greater than 0.1 % and having an effective polymer cation to sulphur content molar ratio of at least 0.3, additional aspects of present invention relates to methods of producing said types of yarn.

EFFECT: invention provides an efficient method of producing copolymer fibres with improved physical properties.

13 cl, 2 dwg, 2 tbl, 5 ex

FIELD: aircraft engineering.

SUBSTANCE: invention is intended for use in aircraft engineering, particularly in production of splitted carbon fiber for making reinforced plastic parts (for example, brake discs), and can be used in machine building. In disclosed method of splitted carbon producing air flow passes through conical nozzle, which outlet diameter is several times less than housing inner diameter and, consequently, air stream base cross section area leaving conical nozzle, is many times smaller than one of housing inner surface. This provides for high flow rate at carbon supply nozzle edge to create maximum entraining effect. Carbon fiber reaching divergent air stream base leaving conical nozzle hole is splitted.

EFFECT: simplified design, reduced device overall dimensions and cost reduction.

3 cl, 3 dwg

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