Fabric of tapes made from cut polymer film tapes for production of air cushions. RU patent 2517565.

FIELD: transport.

SUBSTANCE: invention discloses the production of clothes suitable for use in making of automotive air cushion. Such materials are produced by making fabrics from multiple polymer tapes, for example, polyamide, main and weft tapes. The latter are produced by cutting, preferably, in lengthwise direction, of polymer film, preferably stretched in at least lengthwise direction.

EFFECT: low surface density, stiffness and smaller volume of packages, relative high tensile strength.

35 cl

This invention relates to a method of manufacturing of materials suitable for use in the production of airbags. Such material made by weaving weaving way many extruded polymeric tapes in both directions: on the basis and a duck. These nylon tapes are made of polymer films, such as films, including films made of polyamide, elongated, at least in the longitudinal direction.

In the passenger compartment of the vehicle can be used many systems devices passive safety of passengers, for example, systems of seat belts and airbags. For example, the airbag system can complement the protection provided by the seat belts. The airbag systems typically contain at least one folded airbag and means to provide gas to inflate. System air bags made so that the inflation of the airbag gas to inflate happened when determining the collision of the vehicle with another object.

Usually air bags made of fabric for maintenance of durability air bags so that the airbag could withstand the force of action of gas to inflate, which quickly inflate the airbag. In addition, some air bags cover composition, with which you can increase or change the strength, temperature resistance and/or characteristics of permeability of air bags.

Airbags as additional devices passive safety for passengers in vehicles, for example, historically were made of tissue, formed of main and weft fibers or filaments. Main and weft fibers or threads which were used for the formation of such fabrics for airbags, usually mostly made of nylon 6,6 with linear density (number) of filaments from 34 up to 250. Materials for airbags, including materials coated woven from strands, including flat yarn described, for example, in the U.S. patent # 5508073; № 5881776; № 6632753; and # 6803333; and in applications for patents of USA № 2006/0284403 and # 2007/0031621.

Air bags are also made using a continuous film, for example, from polyamide or polyurethane. Life Hightech Co Ltd, for example, supplied to the market airbags, based on polyurethane films. Through the use of film for airbags were provided with the opportunity of reducing weight, and avoid the stages of weaving and finishing. However, the disadvantage of using a continuous film was generally relatively low resistance to the spread of the break, characteristic of the films. For this reason, in the manufacture airbags-based films are often used reinforcing element for increasing tear resistance, combined with a continuous film. Such air bags from hardened film revealed, for example, in the U.S. patent # 5746446 and # 6149194 and in applications for patents of USA № 2006/0192373, № 2007/0065614 and # 2007/0278775.

Despite the suitability of bags, made from fabrics and reinforced films would benefit the development of new materials-the substrates for production of airbags, which would provide air bags, made from these materials, the combination of the desired properties and characteristics. In particular, with the help of such new materials-substrates would receive the required benefits from the use of film, namely: the potential use of film thickness and high strength, while also receiving a benefit from woven patterns, namely: high tensile strength and good resistance to damage.

In addition to functional requirements airbags, car manufacturers have also increased requirements to reduce the weight and volume of modules airbags. When using smaller <by total size> and lighter airbags in the modules airbags provide the ability to save space in the vehicle for other functionality. When using smaller <by total size> and lighter airbags in the modules airbags also provide the potential to reduce the overall weight of the vehicle, thus achieving increased fuel economy and reduce CO 2 emissions vehicle.

According to one aspect of the present invention, it is aimed at creating fabrics, suitable for use in the production of bags for vehicles, and on the creation of airbags made of this fabric. This material is fabric which is produced from many of the main tapes of thermoplastic polymer, such as polyamide, and many filling tapes from thermoplastic polymer, such as polyamide. The main belt, and the filling of the tape can be produced either by cutting in the longitudinal direction of the polymer film, for example, from polyamide, elongated, at least in the longitudinal direction; or by cutting navitalai or partially extended in the longitudinal direction of the polymer film and by the subsequent extraction in the longitudinal direction or additional extraction in the longitudinal direction of the resulting tapes. Both main and weft tapes have a width of about 3 mm to about 15 mm, and have the tensile strength, component, at least, about 200 MPa. The resulting fabric produced from these tapes, has a surface density of up to 40 g/m 2 up to 140 g/m 2 . Such materials should preferably have a tensile strength at test grab is a method, in part at least, about 1000 H, and tensile strength at test reed method in the longitudinal direction, component, at least, about 200 N.

According to another aspect of the present invention, it is aimed at creation of the method of manufacture of fabrics, suitable for use in the production of bags for vehicles. At the first stage of this method provide the film from thermoplastic polymer, for example made of polyamide. This film has the longitudinal direction and has a thickness of about 80 microns to about 240 mcm. In the second step of the way this polymer film pull at least in the longitudinal direction with a degree of extraction from about 2 to about 6. In the third step of the way to this tape, elongated in the longitudinal direction, cut in the longitudinal direction for getting multiple tapes from thermoplastic polymer, such as polyamide, where each tape has a width of about 3 mm to about 15 mm and has a tensile strength, component, at least, about 200 MPa. The fourth step of the way these polymeric tape is used both as main and weft tape for production of fabrics of these tapes. This fabric has a surface density of up to 40 g/m 2 up to 140 g/m 2 .

According to another aspect of the present invention, it is aimed at creation of the method of manufacture of fabrics, suitable for use in the production of bags for vehicles. At the first stage of this method provide the film from thermoplastic polymer, for example made of polyamide. This film has the longitudinal direction and has a thickness of about 80 microns to about 240 mcm. In the second step of the way this film is cut, for example, in the longitudinal direction, for getting multiple tapes from thermoplastic polymer, such as polyamide, where each tape has a longitudinal direction and has a width of about 3 mm to about 15 mm In the third step of the way these tapes pull in the longitudinal direction, preferably with a degree of extraction from about 2 to about 6, to get the tapes, each of which has a tensile strength, component, at least, about 200 MPa. The fourth step of the way these extruded polymeric tape is used both as main and weft tape for production of fabrics of these tapes. This fabric has a surface density of up to 40 g/m 2 up to 140 g/m 2 .

The materials used for the manufacture bags according to the present invention, weave of extruded polymeric tapes made of thermoplastic polymer films. Thermoplastic materials used for the generation of such films and tapes made from them, are oriented, normally solid, usually crystalline polymers and copolymers. Common examples of such polymeric materials include: polyolefins, for example: high-density polyethylene, polypropylene, poly-1-butene and poly-4-methyl-1-penten; of polyesters, for example: polyethylene terephthalate (PET) and polybutylene terephthalate (PBT); and polyamides, for example, nylony. It is suitable polymeric materials for the formation of films, tapes and materials according to the present invention are polyamides.

Polyamides, suitable for use, according to the present invention can include these semi-crystalline and amorphous polymers having srednicowy molecular weight, amounting to at least 5000, melting temperature to 350 degrees C or less, and usually called "neironami". Suitable polyamides include polyamides, described in U.S. patent№ 2071250; № 2071251; № 2130523; № 2130948; № 2241322; № 2312966; № 2512606; and no 3393210 included in this description by reference.

Polyamide, suitable for the manufacture of the film, it is possible to make, for example, by condensation of equimolar amounts of aliphatic or aromatic dicarboxylic acids, containing from 4 to 12 carbon atoms, with diamine, where diamine contains from 4 to 14 carbon atoms. Excessive diamine can be used to provide redundant amine end groups of greater than the number of carboxyl end groups in polyamide. Polyamides, thus, usually obtained by polymerization of one or more saturated dibasic acids, for example: oxalic acid, succinic acid, adipic acid, severinului acid, sabatinovka acid, etc. with one or more saturated diamines, for example: hydrazine, Ethylenediamine, tetrametilmelamina, pentametilmelamina, hexamethylenediamine were, geometrodynamical. Polyamides can also produce by polymerization of one or more of monoamine-monocarboxylic acids or their cyclic lactams, for example, 6-aminocaproic acid, 11-aminoundecanoic acid, 12-aminolevulinova acid etc.; or by copolymerization mixtures of one or more diamines; one or more of dicarboxylic acids and one or more of monoamine-monocarboxylic acids. For your preferred polyamides, suitable for use in the manufacture of films from which to produce polyamide belt according to the present invention, includes: polycaprolactam (nylon-6), polyhexametylenguanide (nylon-6,6), polytetramethylene (nylon-4,6), polyhexamethylene sabatinovka acid (nylon-6,10), polimenorea acid nylon (n-11), polyamine-dodekanisa acid (nylon-12) and their mixtures.

Polyamide film, suitable for the manufacture of belts according to the present invention can also contain polyamide resin in combination with other polymeric materials, for example, a copolymer ethylene. Such copolymers on the basis of ethylene may include, for example: double and triple copolymers of ethylene and vinyl acetate and ethylene, and alkylbetaine. Modified polyamide this type described in U.S. patent number 7267884 included in this description by reference.

Polyamide film, suitable for use according to the present invention can also include multi-component films containing additional components to make them suitable functional characteristics. Such additional components include, but their composition is not limited to this list) components through which provide improved temperature resistance, increased ability to thermoscreen and/or reduced Flammability films used in accordance with the present invention. One particularly suitable type of additive includes copper-containing compounds or complexes, which can serve as antioxidants and stabilizers.

The film, made of polymeric tape according to the present invention, it is possible to form the usual ways, for example: casting, extrusion with drawing on material or extrusion with drawing on the ramparts, or blown. Ebb or blown films are the preferred methods. The film, produced in ways, usually to their hoods have a thickness of about 3,15 nice to about 9,45 mil (from 80 micron to 240 micron), preferably from around 3,94 nice to about 5,91 mil (from 100 mm to 150 microns). The film used for the formation of tapes according to the present invention may be a single-layer or multilayer films films. Polymer film, suitable for the manufacture of polymeric tapes used for forming materials for the production of airbags according to the present invention, available for purchase on the market. One suitable type polyamide film of nylon 6,6 for use according to the present invention sold in the market under the trademark Dartek® DuPont (Canada).

In one embodiment, polymer film, intended for the use according to the present invention, usually pull at least in the longitudinal direction to get oriented films. The film can usually pull in the longitudinal direction with a degree of extraction from about 2 to about 6, more preferably with a degree of extraction of about 3 to about 5. In this description, the term "degree hoods" you see the final size of the film in the longitudinal direction, made in the hood, divided by the initial size of the film in the longitudinal direction to the hood.

After the formation or obtain in any other way and perhaps after drawing in the required degree, polymer films according to the present invention, as described above, can be cut in the longitudinal direction for getting multiple polymer tapes for final use in weaving in the production of materials for airbags in accordance with the present invention. Tape cut from the film can be obtained by using cutting machine, containing: support frame; many essentially flat cutting blades; installation structure for installation of the cutting blades on a support frame; and the supply shaft mounted on a support frame. Each of cutting blades contains the cutting edge and the opposite edge. The distribution structure can be made so that with its help it was possible to install cutting blades essentially exhibited in parallel to the procedure and at a distance from each other, where the blades can be installed so that one of the cutting edges each blade was exhibited for cutting, and to cutting edges of adjacent edges were exhibited at a distance from each other. Feed shaft can be made so that with its help it was possible to submit the tape in the direction of lower flow to acting cutting edges of the blades. A manufacturer, for example, nylon tapes by cutting elongated polyamide films by this method is described in US patent # 7267884.

Polymeric tape obtained by cutting polymeric films, usually have a width ranging from about 3 mm to about 15 mm, preferably from about 4 mm to about 10 mm Tape this width can be pulled out, if required, and wound on the reel so that they can be used at the final stage, both as the main and weft tapes for weaving materials for airbags in accordance with the present invention.

If polymeric film, which cut the tape has not been pulled out or was only partially extended to cutting up, you usually have to pull out of or in addition to pull separate tape after cutting polymeric films on tape. Such extension or additional hood tape is usually carried out to draft degree, necessary to obtain the tape with the required tensile strength, so that they can be used in fabrics for the manufacture of materials for airbags in accordance with the present invention. Thus, according to the invention of the film is considered "partially irregular"if she had been drawn to some extent, but not to the extent in which such main and weft tape obtained by cutting this film, have the required tensile strength without "additional hoods".

Tape obtained by cutting nevidannyh, polypropylene films, can be subjected to the hood in degrees ranging from approximately 2 to about 6, for example, from about 3 to about 5. Again, according to the invention, under the "degree of drawing" in this case means the final length in the longitudinal direction of the tape obtained by extraction, divided by the original length in the longitudinal direction of the tape to the hood.

For tapes obtained by cutting films that were stretched out partly in the longitudinal direction, typically require "additional hood" to obtain tapes with the required tensile strength. In this case, should be achieved overall degree hoods (the degree of drawing of film plus the degree of drawing tape), ranging from about 2 to about 6. And the main and weft tape obtained by cutting the extended film or tape, elongated after cutting the film, or after both processes must have the tensile strength, component, at least, about 200 MPa, more preferably at least 300 MPa.

Polymeric tape according to the present invention, described above, are used as main, and as filling belts in manufacturing of fabrics, made of these tapes. Weaving material from tape can be performed using any suitable loom, usually, a machine that uses compact plotters duck, or rapier weaving machine, although you can also use other types of machines. You can use any suitable weaving figure weave, for example, plain weave or twill weave. Whatever weaving figure weave, materials according to the present invention usually contain many major tapes, located essentially in parallel next to each other, and many filling tapes, also located essentially in parallel next to each other. Methods and devices for processing of various types of thermoplastic ribbons in various types of fabrics, canvas or other woven materials described in U.S. patent # 3918501; № 6367513; № 6539983 and # 7259113; in the application at the U.S. patent № 2006/0166577 and International PCT patent application № WO 2006/075962. All these patent publication included in this description by reference.

To improve performance in weaving when using cut of the film or to give improved properties specific areas of fabric from the cut of the film (for example, to provide improved temperature resistance certain areas), cut fabric of the film may contain tapes from the cut of the film more than one thickness or tape cut from the film more than one-wide basis, on a duck and either on the basis, and on a duck. Thus, the main and/or weft tape cut from the films of various thickness and width can be used in the same section of tissue cut from the film.

The use of polymer tapes made of cut of the film, provide a number of advantages in the process of weaving, compared with normal tissues for airbags that use complex threads. Due to the nature of tapes from the cut of the film and design fabrics of these tapes are achieved the conditions under which occurs less potential defects that could lead to a reduction in the efficiency of the weaving process. Polymeric tape that more of filaments <complex> threads, typically used less susceptible to damage and thus eliminates the problem of breakage of filaments. The use of wider tapes also allows for a wider machines, and requires less prikidok per centimeter (i.e., less all and prikidok per centimeter), which can be increased speed of manufacture of the fabric.

The resulting fabric produced from polymer tapes made of extruded plastic films and/or separately elongated and possess the characteristics presented above, may have properties that make such materials are particularly suitable for the manufacture of pillows of safety for vehicles. Such materials are, for example, typically have values of surface density in the range of 40 g/m 2 up to 140 g/m 2 , preferably from about 60 g/m2 to 130 g/m 2 . Under such surface densities of these materials have strength and tear resistance (described below), which is comparable to the materials for airbags, produced from conventional filament yarn, but which have the surface densities of at least 20% higher than the materials according to this invention.

Fabrics consisting of strips of cut of the film according to the present invention preferably have a tensile strength at test grab is a method, in part at least, about 1000 H, for example, from about 1400 N to about 2000 N. To assess this invention tensile strength at test grab is the method was determined using the method ASTM D-5034 "Determination of tensile strength at test grab-method (ASTM - American society for testing and materials - translator's note).

Fabrics consisting of strips of cut of the film according to the present invention also preferably have a tensile strength at test reed method in the longitudinal direction, component, at least, about 200 N, for example, from about 300 N to about 500 N. To assess this invention tensile strength when tested by reed method in the longitudinal direction was determined using the method ASTM D-2261 "Determination of tensile strength when tested by reed method in the longitudinal direction."

Fabrics consisting of strips of cut of the film according to the present invention is especially suitable as components of airbags for vehicles. When used in airbags such materials have a combination of advantages: film substrate, i.e. relatively small weight, stiffness and volume of packaging, with the advantages of fabric threads, i.e. relatively high tensile strength and high resistance to damage. These fabrics consisting of strips of cut of the film can thus be used to generate primary inflated with gas cushions, which unfolds with inflation. Materials according to the present invention can also be used for the manufacture of belts, safety files and/or chutes for airbags. Straps attached air bags to the places of attachment to the vehicle's chassis. The backup files are internal straps that held together the inner surface of the front and rear side airbags. Gutters are structures, of which form the passages through which direct air bags, split with inflation (See, for example, U.S. patent no 5863063 included in this description by reference).

Materials for airbags according to the present invention can be coated on one or both sides. As such materials are fabrics consisting of strips of cut films, then the resulting materials according to the present invention are relatively flat compared to conventional fabrics of yarn for airbags. This means that you can use a wide range of coating material, including ways that are not normally used for coating materials for airbags.

Air bags, made of fabrics, tapes, from the cut of the film according to the present invention, usually contain at least two separate or individual, cut material, which should be linked together, for example, one or more joints. Besides, taking into account the fact that the tissues of the tapes from the cut of the film according to the present invention are relatively sparse, some common ways to connect segments of materials, for example, stapling may be unsuitable. Accordingly, when connecting, the cut of materials according to the present invention with other material or component for manufacturing air bags, preferably using an adhesive or by thermal bonding material according to the present invention.

Binding materials airbags using adhesive known in the art and may be exercised in the application materials according to the present invention in the normal way. Use of the materials attached by adhesive, in the manufacture airbags, revealed, for example, U.S. patent no 5782489 and International PCT patent application № WO 99/14082. Both of these patent document included in this description by reference. Preferred adhesive materials that can be used for bonding materials, air bags according to the present invention with other materials or components in the manufacturing process air bags, include adhesives from block copolymers polyether and polyamide, adhesives from and epoxy acrylate composition, adhesives from acrylate and silicone adhesives from ethylene acrylic acid, adhesives, polyurethane adhesives from polyester complex, adhesives from complex polyester and epoxy compositions, adhesives from polyolefin rubber, adhesives from epoxy compositions and polyolefin, adhesives made of polyamide, adhesives from polyurea and their combinations.

Because air bags, made from materials according to the present invention, usually form from pieces of material, fastened by adhesives or thermally, or welded with each other as you present strength requirements such airbags are not guided by the requirements to durability of seams, as is the case with airbags, which are manufactured from normal tissues, joined sewing seams. This means that the requirements for the strength of bags, made from materials according to the present invention, sealed with adhesive or thermally, or welded together, can be based on relatively lower strength requirements to the tensile test according to grab is the method and tensile strength at test reed method in the longitudinal direction of the material itself.

The material is suitable for use in the airbag according to the present invention made in the following way.

The film roll of nylon 6,6 supplied to cut on strips of nylon 6,6. This film was uniaxially oriented film, which was stretched to the degree hoods 4 in the longitudinal direction. This film after orientation had a width of 380 cm and a thickness of 60 mm.

This elongated film of nylon 6,6 filed in cutting the machine on which the film is cut longitudinally at 760 tapes, each of which had a width of about 5 mm Such tapes, each of which had a tensile strength, which constituted approximately 135 N, wound on a reel or a needle and bobbin for use as main and weft tape for production of fabrics of these tapes.

Using a loom with a small plotters duck, main and weft tape reels earned in plain weave fabric with a density on the basis of about 17 ends at 10 cm and density on a duck 17 prikidok 10 see The resulting fabric possessed weighing about 110 g/m 2 . She had a tensile strength at test grab is a method of approximately 1120 N and tensile strength at test reed method in a longitudinal direction - about 370 N. Such material suitable for the manufacture of inflatable nylon bags for use as additional braking device for the passenger in the car.

A comparative example

Material, such material is made in the Example above, contained tape cut from significantly more thin films, produced in the following way.

This elongated film of nylon 6,6 filed in cutting the machine on which the film is cut longitudinally at 760 tapes, each of which had a width of about 5 mm of Such tapes, each of which had a tensile strength, which constituted approximately 45 N, wound on a reel or a needle and bobbin for use as main and weft tape for production of fabrics of these tapes.

Using a loom with a small plotters duck, main and weft tape reels earned in plain weave fabric with a density on the basis of about 17 ends at 10 cm and density on a duck 17 prikidok 10 see the resulting fabric had a surface density of about 37 g/m 2 . She had a tensile strength at test grab is a method of approximately 370 N and tensile strength at test reed method in a longitudinal direction - about 120 N. Such material is unsuitable for the manufacture of inflatable nylon bags for use as additional braking device for the passenger in the car. This is because when using tissue in the airbag, which inflate, using devices to inflate, acting under existing technologies inflating airbags, such fabric does not have sufficient strength to the tensile test according to grab is the method or tensile strength when tested by reed method in the longitudinal direction to preserve the integrity of air bags when inflation.

1. The fabric is suitable for use in the production of bags for vehicles, and a fabric made from a variety of extended in the longitudinal direction of the main tapes of thermoplastic polymer that has a width of about 3 mm to about 15 mm, and from a variety of elongated in the longitudinal direction filling tapes from thermoplastic polymer that has a width of about 3 mm to about 15 mm; elongated in the longitudinal direction of the main belt and transfer belt is made of thermoplastic polymer film and have a tensile strength, component, at least, about 200 MPa; this fabric has a surface density of up to 40 g/m2 to 140 g/m2, with the main and weft tape made from outstretched, at least, in the longitudinal direction, cut thermoplastic polymer films with up drawing a thickness of about 80 microns to about 240 mcm.

2. Fabric in claim 1 in which thermoplastic polymer film, which manufactured the main and weft tape contains polyamide film.

3. The fabric on any one of claims 1 or 2, which thermoplastic polymer film is stretched lengthwise with a degree of extraction from about 2 to about 6 to the making of this film main and weft tapes.

4. Fabric in claim 1 or 2, in which the main and weft tape made of cut navitalai or partially extruded polymer films with the thickness of about 80 microns to about 240 mcm, before the main and weft tapes will be essentially extended, or further extended in the longitudinal direction.

5. Fabric in claim 4, in which the main and weft tape extended or further extended with the General degree of drawing from about 2 to about 6 after cutting polymeric film.

6. The fabric on any one of claims 1 or 2, in which the main and weft tape earned in the fabric weave or twill weave.

7. The fabric on any one of claims 1 or 2, in which the main and weft tape, each have an average width of about 4 mm to about 10 mm

8. The fabric on any one of claims 1 or 2, in which the main and weft tape, each have a tensile strength, component, at least, about 300 MPa.

9. The fabric on any one of claims 1 or 2, in which the main and weft tape made of polyamide film received tint or blown containing polymeric materials: nylon 6 or nylon 6,6.

10. The fabric of claim 9, in which polyamide film contains nylon 6 or nylon 6,6 modified ethylene copolymer.

11. The fabric on paragraph 10, in which the ethylene copolymer for modification nylon selected from the group consisting of double and triple copolymers of ethylene and vinyl acetate and ethylene-alkylbetaine.

12. Fabric according to claim 1 having a tensile strength at test grab is a method, in part at least, about 1000 H, in the determination by the method ASTM D-5034.

13. Fabric according to claim 1 having a tensile strength at test reed method in the longitudinal direction, component, at least, about 200 N, in the determination by the method ASTM D-2261.

14. Fabric in claim 1, covered with organic organic matter to reduce its air permeability.

15. The fabric on 14 where organic mineral substance is selected from the group consisting of neoprene rubber, chloroprene, polyurethane and silicone.

16. Airbag, suitable for use as an additional braking device for the passenger in the vehicle containing the fabric on any one of claims 1 to 15.

17. Airbag on article 16, containing at least two separate segment of the material.

18. Airbag on 17, in which at least two separate segment material bonded together using adhesive or by thermal bonding.

19. Airbag on p, in which pieces of material are connected together using adhesive selected from the group consisting of adhesives: from block copolymers polyether and polyamide, adhesives of acrylate and epoxy compositions, adhesives of acrylate and silicone adhesives from ethylene and acrylic acid, adhesives, polyurethane adhesives from polyester complex, adhesives from complex polyester and epoxy compositions, adhesives from polyolefin rubber, adhesives of epoxy compositions and polyolefin, adhesives made of polyamide, adhesives from polyurea and their combinations.

20. Belts, safety files or troughs containing fabric on any one of claims 1 to 15.

21. Method of manufacture of fabrics, suitable for use in the production of bags for vehicles that: A) provide a thermoplastic polymer film, with longitudinal direction and has a thickness of about 80 microns to about 240 mcm; (B) draw a film, at least in the longitudinal direction with a degree of extraction from about 2 to about 6; C) cut the directional film in the longitudinal direction for the formation of a variety of thermoplastic polymeric tapes, each of which has a width of about 3 mm to about 15 mm and has a tensile strength, component, at least, about 200 MPa; (D) use a variety of thermoplastic polymeric tapes as main and weft tape for production of fabrics of these tapes, and the fabric has a surface density of 40 g/m 2 up to 140 g/m 2 .

22. Method of manufacture of fabrics, suitable for use in the production of bags for vehicles that: A) provide a thermoplastic polymer film, with longitudinal direction and has a thickness of about 80 microns to about 240 mcm; B) cut tape for formation of set of thermoplastic polymeric films, of which each has the longitudinal direction and has a width of about 3 mm to about 15 mm; C) carry out the hood feeds from multiple tapes in the longitudinal direction to the degree necessary to ensure that essentially all of the tapes from multiple tapes had tensile strength, component, at least, about 200 MPa; (D) use a variety of thermoplastic polymeric tape, both as main and weft tape for production of fabrics of these tapes, and the fabric has a surface density of 40 g/m 2 up to 140 g/m 2 .

23. The method according to article 22 where a lot of bands get through cutting thermoplastic polymer films in the longitudinal direction of the film.

24. The method according to article 22 or 23, in which the tape from the set of tapes draw up draft degree from about 2 to about 6.

25. Way on any of PP or 22, in which thermoplastic polymer film contains polyamide film.

26. Way on any of PP or 22, in which the main and weft tape earn in cloth plain weave or twill weave.

27. Way on any of PP or 22, in which the main and weft tapes have an average width of about 4 mm to about 10 mm

28. Way on any of PP or 22, in which the main and weft tapes have the tensile strength, component, at least, about 300 MPa.

29. Way on any of PP or 22, in which thermoplastic polymer film is a film received tint or blown containing polymeric materials: nylon 6 or nylon 6,6.

30. The method according to clause 29, in which polyamide film contains nylon 6 or nylon 6,6 modified ethylene copolymer.

31. The method according to article 30 where the ethylene copolymer for modification nylon selected from the group consisting of double and triple copolymers of ethylene and vinyl acetate and ethylene-alkylbetaine.

32. Way on any of PP or 22, which made the material has the tensile strength at test grab is a method, in part at least, about 1000 H, in the determination by the method ASTM D-5034.

33. Way on any of PP or 22, which made the material has the tensile strength when tested by reed method in the longitudinal direction, component, at least, about 200 H, in the determination by the method ASTM D-2261.

34. Way on any of PP or 22, in which an additional stage, which consists in coating formed on material from organic opaque substances to reduce the permeability of the material.

35. The method according to clause 34, in which organic mineral substance is selected from the group consisting of neoprene rubber, chloroprene, polyurethane and silicone.