WO2007148791A1 - エアバッグ用織物、エアバッグおよびエアバッグ用織物の製造方法 - Google Patents
エアバッグ用織物、エアバッグおよびエアバッグ用織物の製造方法 Download PDFInfo
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- WO2007148791A1 WO2007148791A1 PCT/JP2007/062613 JP2007062613W WO2007148791A1 WO 2007148791 A1 WO2007148791 A1 WO 2007148791A1 JP 2007062613 W JP2007062613 W JP 2007062613W WO 2007148791 A1 WO2007148791 A1 WO 2007148791A1
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/02—Inflatable articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/235—Inflatable members characterised by their material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/44—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific cross-section or surface shape
- D03D15/46—Flat yarns, e.g. tapes or films
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/573—Tensile strength
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/235—Inflatable members characterised by their material
- B60R2021/23504—Inflatable members characterised by their material characterised by material
- B60R2021/23509—Fabric
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
- D10B2201/24—Viscose
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/12—Vehicles
- D10B2505/124—Air bags
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3008—Woven fabric has an elastic quality
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3065—Including strand which is of specific structural definition
Definitions
- the present invention relates to a fabric for an airbag.
- An air bag protects an occupant by absorbing and absorbing the impact of an occupant moving by reaction of an impact by inflating and deploying in the vehicle in a very short time when the vehicle collides. .
- the amount of ventilation of the fabric constituting the bag is small.
- the fabric is required to have a certain strength or more because it is necessary to withstand the impact during the airbag operation.
- due to the design characteristics in the car and the relationship with other parts compactness at the time of storage is required, and further, there is an increasing demand for cost reduction.
- a fabric having a high woven density is used as a means for increasing the slip resistance. For this reason, it is inferior in the compactness required at the time of storage required for an airbag, and is not a base fabric that combines a large sliding resistance and excellent compactness during storage.
- Patent Document 1 Japanese Patent Laid-Open No. 3-137245 (Claim 1)
- Patent Document 2 Japanese Patent Laid-Open No. 2001-200447 (Claim 1, Paragraph 0013)
- Patent Document 3 Japanese Patent Application Laid-Open No. 2000-303303 (Claims 3 and 7, paragraph 0038)
- Patent Document 4 Japanese Unexamined Patent Publication No. 2006-16707 (Claim 1)
- An object of the present invention is to solve the above-mentioned problems of the prior art, have both the low air permeability required for airbag fabrics and the compactness at the time of storage.
- An object of the present invention is to provide a fabric for an airbag and an airbag capable of reducing the misalignment of the sewing portion of the airbag when receiving the airbag. Means for solving the problem
- the present invention is a fabric for an air bag characterized in that the same synthetic fiber yarn is used as a warp yarn and a horizontal yarn and satisfies the following requirements.
- Nw Woven density of warp yarn (Z2. 54cm),
- the present invention is an air nog characterized by sewing the airbag fabric.
- the present invention is a method for producing the above-described airbag fabric, wherein the weaving is performed by adjusting the warp yarn tension to 75 to 230 cN / book in weaving. It is.
- the present invention also relates to a method for producing the airbag fabric of the present invention, wherein weaving is performed with a difference of 10 to 90% between the tension of the upper thread and the tension of the lower thread in the warp thread opening.
- This is a method for producing a fabric for an airbag characterized by the above.
- the airbag fabric of the present invention uses the same synthetic fiber yarn as warp yarn and horizontal yarn, and satisfies the following requirements.
- Synthetic fibers used in the airbag fabric of the present invention include, for example, polyamide fibers, polyester fibers, aramid fibers, rayon fibers, polysulfone fibers, super fibers, and the like. Examples thereof include synthetic fibers such as high molecular weight polyethylene fibers. Of these, polyamide fibers and polyester fibers excellent in mass productivity and economy are preferable.
- Polyamide fibers include, for example, nylon 6, nylon 66, nylon 12, nylon 46, copolymer polyamide of nylon 6 and nylon 66, nylon 6 with polyalkylene glycol, dicarboxylic acid, amine, etc. Examples thereof include fibers made of copolymerized copolyamide and the like. Nylon 6 fiber and nylon 66 fiber are particularly excellent in impact resistance and are preferable.
- polyester fiber examples include fibers such as polyethylene terephthalate and polybutylene terephthalate.
- the polyester fiber is a fiber made of a copolymerized polyester obtained by copolymerizing polyethylene terephthalate or polybutylene terephthalate with an aliphatic dicarboxylic acid such as isophthalic acid, 5-sodium sulfoisophthalic acid or adipic acid as an acid component. Moyo.
- These synthetic fibers are used in order to improve the productivity in spinning or drawing process or processing process, or to improve the properties, heat stabilizer, antioxidant, light stabilizer, smoothing agent, antistatic agent, plasticizer.
- additives such as thickeners, pigments and flame retardants may be included.
- the cross-sectional shape of the single fiber of the synthetic fiber used is preferably circular.
- a flat cross-sectional shape can be used.
- the filling of the fibers in a woven fabric is promoted, the space occupied by single fibers in the woven fabric is reduced, and circular cross-section yarns of the same fineness can be used in the same woven fabric structure. Ventilation rate can be reduced compared to when used.
- the shape of the flat cross section when the cross section of a single fiber is approximated to an ellipse, the flatness defined by the ratio of the major axis (D1) to the minor axis (D2) (D1ZD2) is 1.5 to 4.
- Such a flat cross-sectional shape may be a geometrically true oval shape, for example, a rectangular shape, a rhombus shape, or a saddle shape, and may be left-right symmetric or left-right asymmetric. Moreover, the shape which combined these may be sufficient. Furthermore, a projection, a dent, or a part with a hollow part may be used based on the above.
- the same synthetic fiber yarn is used as a warp yarn and a horizontal yarn.
- the same synthetic fiber yarn is called warp yarn and horizontal yarn.
- Both vertical and horizontal yarns are made of the same type of polymer, and the vertical and horizontal yarns have the same single fiber fineness. This means that both cofils have the same total fineness.
- the polymer of the same type means that the polymers having the same main repeating unit of polymers, such as nylon 66, polyethylene terephthalate, and the like are used. Further, for example, a combination of a homopolymer and a copolymer is also acceptable as the same kind of polymer referred to in the present invention. Sarasako is preferable in terms of production control because it is not necessary to distinguish warp and weft yarns in the same combination of presence, type, and amount of copolymer components.
- the single fiber fineness or the total fineness being the same means that the difference between the single fiber fineness or the total fineness is within 5% on the smaller side of the warp yarn.
- the synthetic fiber yarn used in the present invention is preferably a synthetic fiber filament having a single fiber fineness of 1 to 7 dtex and a relatively low fineness.
- the single fiber fineness is more preferably 1.5 to 4. Odtex, still more preferably 2.0 to 3. Odtex.
- the single fiber fineness By setting the single fiber fineness to the above-mentioned low range, an effect of reducing the rigidity of the synthetic filament can be obtained, so that the airbag can be stored better. In addition, the air flow rate can be reduced. Furthermore, by using weaving conditions under certain conditions such as weaving with increased warp tension as described later, the stability of the fabric structure between the warp and the weft is dramatically improved. The anti-glare property can be remarkably improved.
- the airbag fabric of the present invention satisfies the following requirements (1) to (5).
- the total fineness of the synthetic fiber yarn needs to be 100 to 700 dtex.
- the total fineness is less than lOOdtex
- the warp yarn is bent due to low rigidity in the formation of the warp yarn bending structure described later.
- the warp yarn bending structure does not increase, and as a result, the contact length between the warp yarn and the horizontal yarn does not increase. That is, the sliding resistance in the vertical direction is not improved.
- low air permeability cannot be obtained.
- the total fineness is more preferably 200 to 500 dtex, more preferably 300 to 400 dtex. By setting the total fineness within this range, it is possible to improve the fabric strength, sliding resistance, low air permeability, flexibility and compact storage in a balanced manner.
- the warp yarn cover factor (CF1) and the horizontal yarn cover factor (CF2) are:
- the warp yarn cover factor (CF1) and the weft cover factor (C F2) are the warp yarns and the total fineness and weave density force of the warp yarns. Is the value to be Warp yarn total fineness is Dw (dtex), horizontal yarn total fineness is Df (dtex), warp yarn weaving density is N w (this Z2. 54cm), horizontal yarn weaving density is Nf (this Z2. 54cm) Is expressed by the following equation.
- CF2ZCF1 should not equalize the weft density of warp yarn and the weft density of the yarn.
- To increase the slip resistance in the warp direction and the weft direction of the fabric is to balance CF2ZCF1 1. 10 times or more. It is indispensable to improve together.
- the airbag fabric of the present invention is composed of the warp yarn and the weft yarn made of the same synthetic fiber yarn as described above, and the weave density of the warp yarn fabric is Nw, Densely weaved yarn fabric
- the degree Nf preferably satisfies the relationship NfZNw ⁇ l.10.
- the weaving density of the horizontal yarn is the number of multifilament yarns driven per inch (2.54 cm) in the longitudinal direction of the fabric based on JIS L 1096 8.6.1.
- the warp yarn weave density is the number of multifilament yarns arranged per inch (2.54 cm) in the width direction of the fabric. It is preferable that NfZNw is 1.10 times or more in order to improve the sliding resistance in the vertical and horizontal directions of the fabric as well as improve the balance. NfZNw ⁇ l.12 is preferable. (3) Sliding resistance in the vertical and horizontal directions
- the inventors have determined that the cover factor or weave density of the warp yarn and the cover factor or weave density of the warp yarn and the slip resistance force in the respective directions. 3 ⁇ 4
- 3 ⁇ 4 We examined the relationship. Then, the cover factor or weave density of the warp yarn was fixed, and the slip factor was measured by changing the cover factor or weave density of the weft yarn. The results are shown in Table 1. Table 1 shows the warp yarn weaving density fixed at 56 (2 / 2.54cm) and the weft yarn weaving density changed to 52, 56, 62 and 64 (2 / 2.54cm).
- the sliding resistance in the weft direction of the fabric improves. To do. Furthermore, it can be seen that the sliding resistance in the vertical direction is improved, and the sliding resistance in the vertical and horizontal directions can be improved in balance.
- the slip resistance force is based on ASTM D 6479-02, and the slip resistance force in the vertical direction stabs a pin along the horizontal thread and moves the horizontal thread in the vertical direction with the pin.
- the sliding resistance force in the horizontal direction is a measure of the maximum load when a pin is stabbed along the warp thread and the warp thread is moved in the horizontal direction with that pin. It is.
- cover factor of horizontal thread! / ⁇ is a warp direction and horizontal direction of a fabric whose weave density is larger than the cover factor or density of the warp yarn (hereinafter referred to as “horizontal rich fabric”).
- horizontal rich fabric a fabric whose weave density is larger than the cover factor or density of the warp yarn.
- the resistance force when the warp yarn is driven to the side (vertical direction) when viewed from the longitudinal direction is supported by the contact length due to the warp of the warp yarn. It is considered that the number of contact points tends to dominate the resistance force when the warp yarn is driven to the side (horizontal direction) when viewed from the longitudinal direction.
- the warp slipping resistance of the Yokorich fabric can be increased in the warp yarn bending structure compared to the symmetrical fabric.
- the resistance when the weft is driven by the pin increases, and the sliding resistance in the vertical direction is improved.
- the sliding resistance force in the horizontal direction of the horizontal rich fabric increases the number of contact points between the warp yarn and the horizontal yarn compared to the symmetrical fabric, so that the resistance force when the vertical yarn is driven by the pin is increased. This will increase the resistance to sliding in the horizontal direction.
- the slip-off resistance in the warp direction of a woven fabric in which the cover factor or the weave density of the warp yarn is greater than the cover factor or the weave density of the weft yarn.
- vertical woven fabric a woven fabric in which the cover factor or the weave density of the warp yarn is greater than the cover factor or the weave density of the weft yarn.
- the warp yarn bending structure is not as large as the weaving density symmetrical fabric because the number of horizontal yarns to be driven is small. It is difficult to contribute to the improvement of the sliding resistance in the vertical direction, which is poor in resistance when being driven by the power.
- the sliding resistance of the warp-rich fabric in the horizontal direction is less resistant when the warp yarn is driven by a pin with fewer contact points between the warp yarn and the horizontal yarn than the symmetrical fabric. We think that it is difficult to contribute to the improvement of sliding resistance in the direction.
- the cover factor (CF1) of the warp yarn of the woven fabric and the cover factor (CF2) of the horizontal yarn are both preferably 950 to 1250.
- CF1 cover factor
- CF2 cover factor
- the cover factor (CF1) of the warp yarn of the woven fabric and the cover factor (CF2) of the horizontal yarn are both preferably 950 to 1250.
- the sum of CF1 and CF2 is 2000 or more and less than 2300, which is preferable for achieving both compact storage performance, low air permeability, and sliding resistance.
- the sum of CF1 and CF2 is 2000 or more and less than 2300, which is preferable for achieving both compact storage performance, low air permeability, and sliding resistance.
- the sliding resistance in the vertical direction and the sliding resistance in the horizontal direction are both 400N or more, preferably both 450N or more, more preferably 500N. That's it.
- both to 400N or more it is possible to suppress the misalignment of the sewing portion when the air nozzles are inflated and deployed to restrain the occupant as much as possible, and to maintain the internal pressure of the airbag.
- the airbag fabric according to the present invention has a ratio of the slip resistance (EC1) in the vertical direction to the slip resistance (EC2) in the horizontal direction.
- the ratio of the vertical slipping resistance (EC1) to the horizontal sliding resistance (EC2) is in the above relationship, so that the airbag is inflated and deployed to restrain the occupant.
- the internal pressure of the airbag can be maintained by minimizing the misalignment of the part.
- misalignment of the sewing part will occur in the direction of low sliding resistance, and the internal pressure of the airbag will be reduced. I can't hold it.
- the air bag fabric of the present invention has an air flow rate of 1.0 LZcm 2 'min or less when measured at a test differential pressure of 19.6 kPa based on the Frazier method defined in JIS L 1096, preferably 0. It must be 7LZcm 2 .min or less.
- the airbag fabric of the present invention preferably has a tensile strength of 400 NZcm or more based on the strip method specified in JIS K 6404-3, more preferably 500 NZcm or more, and even more preferably 550 N / cm or more.
- a tensile strength 400 NZcm or more based on the strip method specified in JIS K 6404-3, more preferably 500 NZcm or more, and even more preferably 550 N / cm or more.
- the airbag fabric of the present invention is woven by using the same synthetic fiber filament yarn for the warp yarn and the weft yarn, and setting the weave density of the weft yarn fabric to be larger than the weave density of the warp yarn fabric. To do.
- warp yarn of the above-mentioned material and fineness is warped and applied to a loom, and preparation of the horizontal yarn is similarly performed.
- a powerful loom for example, a water jet room, an air jet room, a revere room, and the like can be used.
- high speed It is preferable to use a water jet loom that is relatively easy to weave.
- the warp yarn tension As a method for producing the airbag fabric of the present invention, it is preferable to adjust the warp yarn tension to 75 to 23 OcN / piece in weaving, more preferably 100 to 200 cN / piece.
- the warp yarn tension By adjusting the warp yarn tension within such a range, the gap between the single fibers in the bundle of multifilament yarns constituting the woven fabric can be reduced, and thus the air flow rate can be reduced.
- the warp yarn that has been subjected to the above-mentioned tension pushes and bends the weft yarn after it is driven, thereby increasing the tissue binding force of the fabric in the weft direction and improving the anti-displacement of the fabric.
- Air leakage due to misalignment of the sewing portion when forming a bag as an airbag can be suppressed.
- the warp yarn tension is less than 75cNZ, the contact area of the warp yarn and the weft yarn in the woven fabric cannot be increased, and the sliding resistance will not be improved. Further, since the effect of reducing the gap between the single fibers is small, it is not preferable in terms of low air permeability. In addition, if the number exceeds 230 cNZ, the warp yarn becomes fuzzy and the weaving property deteriorates.
- Specific methods for adjusting the warp yarn tension within the above range include adjusting the warp yarn feed speed of the loom, as well as adjusting the horizontal yarn driving speed. Whether the warp yarn tension actually falls within the above range during weaving, for example, measure the tension applied per warp yarn between the warp beam and the back roller with a tension meter while the loom is running. This can be confirmed.
- the upper thread traveling line length and the lower thread traveling There is a way to make a difference with the line length. For example, by placing a guide roll between the knock roller and the heel and shifting the opening fulcrum upward or downward with this guide roll, the running line length of one thread is longer than the other when opening. Thus, the tension increases and it becomes possible to make a difference between the tension of the upper thread and the tension of the lower thread.
- the guide roll should be installed at a position that is 20 to 50% from the back roller side with respect to the distance between the back roller and the paddle. It is preferable.
- the position of the opening fulcrum is preferably at least 5 cm away from the warp line.
- a cam drive system is adopted in the opening device, and the dwell angle on one side of the upper thread / lower thread is made larger than the other.
- a bar temple As the loom temple.
- bar temples it is possible to beat while gripping the entire front of the weave, so the gap between the synthetic fiber filaments can be reduced, resulting in the ability to improve the low air flow rate and resistance to misalignment. It is.
- a coated cloth may be used by applying grease or the like on the surface of the base cloth, if necessary.
- the airbag of the present invention is obtained by sewing the above air nogg fabric into a bag shape and attaching attached devices such as an inflator.
- the airbag of the present invention can be used for driver seats, passenger seats, rear seats, side airbags, and the like. It is particularly suitable for use as a driver's seat or passenger's seat airbag that requires a large amount of restraint.
- the thickness of the fabric was measured by the following methods.
- the sample was placed on a flat table, and the number of warp yarns and horizontal yarns in a section of 4 cm was counted at 5 different places, excluding unnatural wrinkles and tension, and the average value was calculated for each.
- test method B strip method
- test method B strip method
- test method B collect five test specimens, remove the thread from both sides of the width, and make the width 30 mm.
- Using a fast tension type testing machine pulling the test piece at a grip interval of 150 mm and a tensile speed of 200 mm Zmin, measuring the maximum load until cutting, and calculating the average value for each of the vertical and horizontal directions .
- test method B strip method
- test method B strip method
- five specimens are collected, and both side forces of the width are 30 mm wide by removing the thread.
- Attach marked lines at 100mm intervals to the center of the test piece, and with a constant-speed tension type tester, pull until the test piece is cut at a gripping interval of 150mm and a pulling speed of 200mmZmin.
- the elongation at break was calculated according to the following formula, and the average value was calculated for each of the vertical and horizontal directions.
- test specimens with a long side of 200 mm and a short side of 76 mm were sampled on the vertical and horizontal sides, respectively.
- the load was measured.
- three points were selected in order of the medium force of the maximum point excluding the first peak, and the average value was taken. Finally, average values were calculated for each of the vertical and horizontal directions.
- JIS L 1096: 1999 8. 27. 1 The air flow rate when tested at a test differential pressure of 19.6 kPa was measured according to the A method (Fragile type method). Collect specimens of approximately 20cm x 20cm at five different force points of the sample, attach the specimen to one end of a cylinder with a diameter of 100mm, fix it so that there is no air leakage, and use a regulator to test differential pressure. 19. Adjusted to 6 kPa, the amount of air passing through the test piece at that time was measured with a flow meter, and the average value for the five test pieces was calculated.
- Shell DJ was measured according to ASTM D6478-02.
- the warp yarn weaving density is 56, Z2. 54cm, and the weft yarn weaving density is
- a water jet loom is used as a loom, and a bar temple is installed between the beating portion and the friction roller to grip the fabric, and the knock roller force is 40 cm between the knock roller and the wrinkle draw. In this position, the guide roll is attached to lift the 7cm warp yarn from the warp line.
- the fabric was then subjected to a heat setting force of 160 ° C. for 1 minute using a pin tenter dryer under the dimensional regulation of a width insertion rate of 0% and an overfeed rate of 0%.
- the obtained airbag fabric had both low air permeability and compactness during storage, and the sliding resistance in the vertical direction and the horizontal direction satisfied the balance target value.
- the same yarn as used in Example 1 was used as the warp yarn.
- the obtained airbag fabric has no problem with air permeability, but has low sliding resistance in the horizontal direction.
- the same yarn as used in Example 1 was used as the warp yarn.
- the fabric was subjected to the same heat setting as in Example 1.
- the obtained airbag fabric has no problem with air permeability, but has low sliding resistance in the horizontal direction.
- a water jet loom was used as the loom, and a bar temple was installed between the beating portion and the friction roller to grip the fabric.
- the guide roll as used in Example 1 was not attached.
- the fabric was subjected to the same heat setting as in Example 1.
- the obtained airbag fabric had both low air permeability and compactness during storage, and the sliding resistance in the vertical direction and the horizontal direction satisfied a target value that was balanced.
- the weft density of the warp yarn is 62 Z2. 54cm, the weft density of the weft yarn is
- a water jet loom was used as the loom, and a ring temple was installed between the beating portion and the friction roller to grip the fabric.
- the guide roll as used in Example 1 was not attached.
- the fabric was subjected to the same heat setting as in Example 1.
- the obtained air bag fabric has a large air flow rate and low sliding resistance in the horizontal direction.
- a water jet loom is used as the loom, and a bar temple is installed between the beating portion and the friction roller to grip the fabric, and 30 cm from the knock roller between the knock roller and the squeezer. In this position, a guide roll is attached to lift the 8cm warp yarn from the warp line.
- the fabric was subjected to the same heat setting as in Example 1.
- the obtained airbag fabric had both low air permeability and compactness during storage, and the sliding resistance in the vertical and horizontal directions met the target value that was well balanced.
- Fiber filaments were used as warp and side threads.
- a water jet loom was used as the loom, and a ring temple was installed between the beating portion and the friction roller to grip the fabric.
- the guide roll as used in Example 1 was not attached.
- the fabric was subjected to the same heat setting as in Example 1.
- the obtained airbag fabric has a sliding resistance in both the vertical and horizontal directions where the air flow is large. Was low.
- the warp yarn weaving density is 46, Z2. 54cm, and the weft yarn weaving density is
- Example 1 As a loom, a water jet loom was used, and a bar temple was installed between the beating portion and the friction roller to grip the fabric.
- the guide roll as used in Example 1 was not attached.
- the fabric was then passed through a 60 ° C hot water shrink bath for 20 seconds and dried for 10 seconds at 160 ° C using a non-touch dryer.
- Heat set processing was performed for 1 minute at 180 ° C under the dimensional regulation with a rate of 1.0% and an overfeed rate of 0.5%.
- the obtained airbag fabric had both low air permeability and compactness during storage, and the sliding resistance in the vertical and horizontal directions met the target value that was well balanced.
- the fabric was then passed through a 60 ° C hot water shrink bath for 20 seconds and dried for 10 seconds at 160 ° C using a non-touch dryer.
- Heat set processing was performed for 1 minute at 180 ° C under the dimensional regulation with a rate of 1.0% and an overfeed rate of 0.5%.
- the obtained airbag fabric had no problem with air permeability, but had low sliding resistance in both the vertical and horizontal directions.
- a water jet loom is used as a loom, a bar temple is installed between the hammering section and the friction roller to grip the fabric, and the knock roller force is 40cm between the knock roller and the scissors.
- the guide roll was attached to lift the 8cm warp yarn from the warp line.
- the warp yarn tension during weaving was 127cNZ
- the upper yarn tension when the loom was stopped was adjusted to 108 cNZ and the bobbin thread tension to 147 cNZ, and the loom speed was 500 rpm.
- the fabric was then passed through a 60 ° C hot water shrink bath for 20 seconds and dried for 10 seconds at 160 ° C using a non-touch dryer.
- Heat set processing was performed for 1 minute at 180 ° C under the dimensional regulation with a rate of 1.0% and an overfeed rate of 0.5%.
- the obtained airbag fabric had both low air permeability and compactness during storage, and the sliding resistance in the vertical and horizontal directions met the target value that was well balanced.
- the warp yarn weaving density is 39 Z2. 54cm, and the weft yarn weaving density is
- a water jet loom is used, a bar temple is installed between the beating portion and the friction roller to grip the fabric, and the knock roller force is 40 cm between the knock roller and the wrinkle. In this position, the guide roll is attached to lift the 8cm warp yarn from the warp line.
- the weaving conditions were adjusted so that the warp yarn tension during weaving was 196 cNZ, the upper yarn tension when the loom was stopped was 176 cNZ, the lower yarn tension was 216 cNZ, and the loom speed was 500 rpm. It was.
- the fabric was then passed through a 60 ° C hot water shrink bath for 20 seconds and dried for 10 seconds at 160 ° C using a non-touch dryer. Heat setting for 1 minute at 180 ° C under the dimensional regulation of rate 1.0%, overfeed rate 0.5% Processed.
- the obtained airbag fabric had both low air permeability and compactness during storage, and the sliding resistance in the vertical and horizontal directions met the target value that was well balanced.
- a water jet loom was used as the loom, and a ring temple was installed between the beating portion and the friction roller to grip the fabric.
- the guide roll as used in Example 1 was not attached.
- the fabric was then passed through a 60 ° C hot water shrink bath for 20 seconds and dried for 10 seconds at 160 ° C using a non-touch dryer. Heat setting was performed for 1 minute at 180 ° C under the dimensional regulation of 0% rate and 0% overfeed rate.
- the obtained airbag fabric had low slip resistance in both the vertical and horizontal directions where the air flow was large.
- the airnog woven fabric according to the present invention combines the low air permeability required for the airnogg woven fabric and the compactness at the time of storage, and is excellent in sliding resistance. For this reason, the airbag fabric according to the present invention can be suitably used particularly for a driver seat, a passenger seat, a side airbag for side collision, and the like.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Woven Fabrics (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020097001494A KR101372186B1 (ko) | 2006-06-23 | 2007-06-22 | 에어백용 직물, 에어백 및 에어백용 직물의 제조 방법 |
CN2007800236883A CN101479414B (zh) | 2006-06-23 | 2007-06-22 | 气囊用织物、气囊以及气囊用织物的制造方法 |
US12/308,717 US9012340B2 (en) | 2006-06-23 | 2007-06-22 | Woven fabric for air bags, air bags and process for production of the woven fabric |
EP20070767422 EP2042628B1 (en) | 2006-06-23 | 2007-06-22 | Woven fabric for air bags, air bags and process for production of the woven fabric |
CA 2655825 CA2655825C (en) | 2006-06-23 | 2007-06-22 | Woven fabric for air bags, air bags and process for production of the woven fabric for air bags |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-173538 | 2006-06-23 | ||
JP2006173538 | 2006-06-23 |
Publications (1)
Publication Number | Publication Date |
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WO2007148791A1 true WO2007148791A1 (ja) | 2007-12-27 |
Family
ID=38833528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/062613 WO2007148791A1 (ja) | 2006-06-23 | 2007-06-22 | エアバッグ用織物、エアバッグおよびエアバッグ用織物の製造方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9012340B2 (ja) |
EP (1) | EP2042628B1 (ja) |
KR (1) | KR101372186B1 (ja) |
CN (1) | CN101479414B (ja) |
CA (1) | CA2655825C (ja) |
TW (1) | TW200809025A (ja) |
WO (1) | WO2007148791A1 (ja) |
Cited By (6)
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CN101886307A (zh) * | 2009-05-12 | 2010-11-17 | 东丽纤维研究所(中国)有限公司 | 气囊用织物的生产方法 |
US20120058699A1 (en) * | 2009-04-30 | 2012-03-08 | Global Safety Textiles Gmbh | Fabric, in particular for an airbag |
US20120231273A1 (en) * | 2008-03-10 | 2012-09-13 | Toray Industries, Inc. | Raw yarn for air bag and method for producing the raw yarn |
US20130106081A1 (en) * | 2010-03-30 | 2013-05-02 | Kolon Industries, Inc. | Polyester fabrics for airbag and preparation method thereof |
JPWO2019065880A1 (ja) * | 2017-09-29 | 2020-09-10 | 東洋紡株式会社 | エアバッグ基布およびそれを含むエアバッグ |
US11987910B2 (en) | 2020-03-26 | 2024-05-21 | Asahi Kasei Kabushiki Kaisha | Base cloth for material and manufacturing method therefor |
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US8210567B2 (en) * | 2006-07-18 | 2012-07-03 | Irvin Automotive Products, Inc. | Seat side airbag seam |
CN102019902B (zh) * | 2009-09-14 | 2014-10-01 | 东洋纺织株式会社 | 气囊 |
DE102010046209A1 (de) * | 2010-09-21 | 2011-05-12 | Daimler Ag | Airbag, insbesondere für einen Kraftwagen |
CN102650087B (zh) * | 2011-02-24 | 2015-01-28 | 东丽纤维研究所(中国)有限公司 | 一种安全气囊用织物及其生产方法 |
JP5093374B2 (ja) * | 2011-03-10 | 2012-12-12 | 東洋紡株式会社 | エアバッグ |
EP2796600B8 (en) * | 2011-12-21 | 2019-07-10 | Kolon Industries, Inc. | Airbag for vehicle including an aramid fabric |
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EP3243708A1 (en) * | 2012-07-25 | 2017-11-15 | Autoliv Development AB | A fabric for an air-bag |
CN104583486B (zh) * | 2012-08-28 | 2016-06-01 | 东丽株式会社 | 涂层布及其制造方法 |
KR102071752B1 (ko) * | 2013-01-28 | 2020-01-30 | 도레이 카부시키가이샤 | 에어백용 직물 및 에어백 |
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US11130467B2 (en) * | 2017-08-21 | 2021-09-28 | Toyobo Co., Ltd. | Fabric for airbag, coated fabric for airbag, and airbag using same |
JP7380549B2 (ja) | 2019-03-04 | 2023-11-15 | 東レ株式会社 | エアバッグ用基布およびエアバッグ用基布の製造方法 |
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- 2007-06-22 CN CN2007800236883A patent/CN101479414B/zh active Active
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120231273A1 (en) * | 2008-03-10 | 2012-09-13 | Toray Industries, Inc. | Raw yarn for air bag and method for producing the raw yarn |
US20120058699A1 (en) * | 2009-04-30 | 2012-03-08 | Global Safety Textiles Gmbh | Fabric, in particular for an airbag |
CN101886307A (zh) * | 2009-05-12 | 2010-11-17 | 东丽纤维研究所(中国)有限公司 | 气囊用织物的生产方法 |
US20130106081A1 (en) * | 2010-03-30 | 2013-05-02 | Kolon Industries, Inc. | Polyester fabrics for airbag and preparation method thereof |
JPWO2019065880A1 (ja) * | 2017-09-29 | 2020-09-10 | 東洋紡株式会社 | エアバッグ基布およびそれを含むエアバッグ |
JP7188393B2 (ja) | 2017-09-29 | 2022-12-13 | 東洋紡株式会社 | エアバッグ基布およびそれを含むエアバッグ |
US11987910B2 (en) | 2020-03-26 | 2024-05-21 | Asahi Kasei Kabushiki Kaisha | Base cloth for material and manufacturing method therefor |
Also Published As
Publication number | Publication date |
---|---|
US20100048079A1 (en) | 2010-02-25 |
EP2042628A4 (en) | 2011-03-23 |
KR101372186B1 (ko) | 2014-03-07 |
EP2042628B1 (en) | 2013-10-02 |
CA2655825A1 (en) | 2007-12-27 |
KR20090026347A (ko) | 2009-03-12 |
CN101479414B (zh) | 2011-06-08 |
CN101479414A (zh) | 2009-07-08 |
EP2042628A1 (en) | 2009-04-01 |
CA2655825C (en) | 2015-02-03 |
US9012340B2 (en) | 2015-04-21 |
TW200809025A (en) | 2008-02-16 |
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