WO2020174889A1 - Tissu tissé pour coussin de sécurité gonflable et procédé de production de tissu tissé pour coussin de sécurité gonflable - Google Patents

Tissu tissé pour coussin de sécurité gonflable et procédé de production de tissu tissé pour coussin de sécurité gonflable Download PDF

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Publication number
WO2020174889A1
WO2020174889A1 PCT/JP2020/000488 JP2020000488W WO2020174889A1 WO 2020174889 A1 WO2020174889 A1 WO 2020174889A1 JP 2020000488 W JP2020000488 W JP 2020000488W WO 2020174889 A1 WO2020174889 A1 WO 2020174889A1
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WIPO (PCT)
Prior art keywords
warp
fabric
selvage
yarn
airbag
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PCT/JP2020/000488
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English (en)
Japanese (ja)
Inventor
直樹 川▲崎▼
陸 山田
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東レ株式会社
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Priority to JP2020509123A priority Critical patent/JP7447787B2/ja
Publication of WO2020174889A1 publication Critical patent/WO2020174889A1/fr

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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
    • 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D5/00—Selvedges

Definitions

  • the present invention relates to an airbag fabric and a method for manufacturing an airbag fabric.
  • Automobiles are equipped with airbags for ensuring the safety of passengers.
  • airbags for ensuring the safety of passengers.
  • an impact is detected by a sensor in the event of a collision in an automobile, high-temperature and high-pressure gas is generated, and this gas causes the airbag to inflate momentarily, causing the occupant's face, head, etc. to be inflated from the collision.
  • an airbag is a plain woven fabric using synthetic fiber filament yarns of 150 to 600 x 16 X to improve properties such as heat resistance, flame retardancy, and air barrier property. It is made by applying a silicone resin, etc., to a base fabric (coated base fabric), cutting the base fabric, and sewing the bag.
  • the base fabric there is also a so-called non-coated base fabric in which a synthetic resin filament yarn is woven at a high density without adding a silicone resin or the like to reduce the air permeability of the fabric.
  • the fabric for an airbag has a high strength in order to instantaneously inflate the airbag in the event of an automobile collision and protect the occupant's face, head, knees, etc. in the event of a collision. And low air permeability is required. Therefore, the fabric for airbags needs to be a higher-density, higher-density fabric that uses higher-strength yarns than the fabric for ordinary clothing.
  • the warp and weft yarns have a woven fabric density of 1 inch (2. 5 4
  • Patent Documents 2 to 4 A method of making the yarn denier thinner than the warp denier of the main body part (Patent Documents 2 to 4), and a method of driving additional yarns into the selvages of the ground yarn and the entangled yarn (Patent Document 5).
  • Patent Document 1 Table 201 4/05 1 049
  • Patent Document 2 JP 2001-355 1 43
  • Patent Document 3 JP 2000 _ 064 1 48
  • Patent Document 4 Japanese Patent Laid-Open No. 10-236253
  • Patent Document 5 JP-A-9-302550
  • Patent Document 6 JP-A-9-302549
  • the present invention has been made in view of such conventional problems, and it is possible to effectively suppress the receding and flare of the cloth fell of both ears before weaving that occur during weaving.
  • the purpose of the present invention is to provide a high-quality fabric for air bags, which can prevent wrinkles from being generated at the end when a long piece of fabric is used, ensure uniform coating in the coating process, and prevent misalignment during cutting.
  • a fabric for an airbag of the present invention which solves the above-mentioned problems, is a fabric for an airbag, which comprises a synthetic fiber, wherein the fabric has a ground portion and ears at both ends, and the warp crimp ratio of the ground portion is 3% or more greater than the warp crimp rate in the ear ⁇ 02020/174889 4 ⁇ (: 171?2020/000488
  • a characteristic fabric for airbags is A characteristic fabric for airbags.
  • a method for producing an airbag fabric of the present invention which solves the above-mentioned problems is a method for producing the airbag fabric, wherein the warp tension of the selvage portion is higher than the warp tension of the base portion.
  • This is a method for producing a fabric for an air bag, which is characterized by weaving the fabric at a height of 1.2 times or more.
  • FIG. 1 is a diagram for explaining the asphalt ratio of a woven yarn.
  • the airbag fabric of the embodiment of the present invention (hereinafter, also referred to as a fabric) is made of synthetic fiber.
  • the fabric includes a ground portion and ears on both ends.
  • the warp crimp rate in the ground is more than 3% higher than the warp crimp rate in the ears.
  • the synthetic fiber woven fabric constituting the woven fabric is composed of synthetic fiber yarns.
  • synthetic fiber materials include polyamid fiber, polyester fiber, aramid fiber, rayon fiber, polysulfone fiber, and ultrahigh molecular weight polyethylene fiber.
  • the synthetic fiber material is preferably polyamid fiber or polyester fiber, which is excellent in mass productivity and economical efficiency.
  • Polyamide fibers include nylon 6, nylon 6 6, nylon 12 and nylon 46, copolymerized polyamide of nylon 6 and nylon 6, nylon 6 and polyalkylene glycol, dicarboxylic acid, amine.
  • the fiber include a copolymerized polyamide obtained by copolymerizing the above.
  • polyamid fiber is preferable because nylon 6 fiber and nylon 6 fiber have particularly excellent strength.
  • polyester fiber examples include fibers made of polyethylene terephthalate, polyethylene terephthalate, and the like. Polyester fiber is made of polyethylene terephthalate or polypropylene terephthalate, and isolphthalic dicarboxylic acid such as isophthalic acid, 5-sodium sulfoisophthalic acid or adipic acid as an acid component. ⁇ 02020/174889 5 ⁇ (: 171-12020/000488
  • It may be a fiber made of a copolyester obtained by copolymerizing boric acid.
  • These synthetic fibers include a heat stabilizer, an antioxidant, a light stabilizer, a leveling agent, an antistatic agent, and a plasticizer in order to improve the productivity or characteristics in the spinning/drawing process and the processing process.
  • Additives such as thickeners, pigments and flame retardants may be included.
  • the same synthetic fiber yarn is used as the warp yarn and the weft yarn.
  • the same synthetic fiber yarn is used as warp and weft means that both warp and weft are made of the same type of polymer, both warp and weft have the same single fiber fineness, and both warp and weft have the same total fineness. That's what it means.
  • the same type of polymer means polymers having common main repeating units such as nylon 66 and polyethylene terephthalate. Even in the combination of a homopolymer and a copolymer, if the main repeating units are common, they are preferably used as the same type of polymer in the present embodiment.
  • the synthetic fiber yarn used as the base yarn of the airbag fabric of the present embodiment is preferably a synthetic fiber filament having a single fiber fineness of 1 to 7 1 I 6 X.
  • the single fiber fineness is 7 ⁇ 1 I 6 X or less, in the obtained woven fabric, the voids occupied by the single fibers in the woven fabric are small, and the fiber filling effect is further improved. As a result, the ventilation amount of the obtained base fabric is likely to be reduced. Further, when the single fiber fineness is 7 I 6 X or less, the effect of lowering the rigidity of the synthetic fiber filament is likely to be obtained. Therefore, the airbag using the obtained base fabric is likely to have improved storability.
  • the total fineness of the synthetic fiber yarn used as the base yarn of the woven fabric is 150 to 7000.
  • the airbag using the obtained base fabric is ⁇ 02020/174889 6 ((171?2020/000488
  • the total fineness is preferably at least 206 0 t & X, more preferably at least 250 I 6 X. Further, the total fineness is preferably 700 I 6 X or less, and more preferably 500 0 6 or less. By adjusting the total fineness within these ranges, the obtained woven fabric can be improved in tenacity, slipping resistance, low air permeability, flexibility and compactness in a well-balanced manner.
  • the tensile strength of the synthetic fiber yarn that constitutes the fabric base yarn for the airbag of the present embodiment satisfies the mechanical properties required for the airbag fabric, and from the viewpoint of the yarn manufacturing operation, the warp and the weft Both are preferably 8.01 ⁇ 1/I6X or more, and more preferably 83.01 ⁇ 1/6X or more. Further, the tensile strength is preferably 9.0.01 ⁇ 1/16 X or less, and more preferably 8.071 ⁇ 1/16 X or less.
  • the woven structure of the airbag fabric of the present embodiment is not particularly limited.
  • the woven structure is a flat structure, a twill structure, a satin structure, and their modified structures, etc.
  • the woven density of the airbag fabric of the present embodiment is not particularly limited.
  • the woven density may vary depending on whether the woven fabric is resin-processed or non-resin-processed, and the fineness of the woven yarn.
  • the cover factor is 1800 to 250, in order to achieve both low air permeability and high slip resistance. In general, when the cover factor becomes 1800 to 250, the backward movement of the selvage opening of the selvage becomes a problem, which is a problem during weaving. In addition, flare becomes noticeable.
  • the production of the woven fabric of the present embodiment can be effectively adopted when the cover factor is less than 1 800 or exceeds 2500, but especially when the cover factor is 1 800 to 2 In the case of a woven fabric having a value of 500, the obtained woven fabric is likely to exhibit the above effects.
  • the cover factor is the total fineness of the warp, ( ⁇ 1 I 6 X), the warp density of 1 ⁇ 1, (book / 2. And weft total fineness is ( ⁇ 1 I 6 X), weft density is 1 ⁇ 1 2 (pieces/2. Then, it is expressed by the following formula. ⁇ 02020/174889 7 ⁇ (: 171?2020/000488
  • a entwined yarn or a added yarn is used at the edge of the ear portion.
  • selvedges may be used between the additional and warp threads to reduce flare.
  • the "entangled yarn” is also called leno, and in order to prevent fraying of the ears, a plurality of yarns are entangled with each other and the wefts are tightened to form ears at the outermost side of the ears of the fabric.
  • a planetary gear mechanism is generally used. More preferably, a planetary gear torsion system is used.
  • the method of forming the ear may be another method.
  • the material, type, and fineness of the entangled yarn are appropriately selected depending on the type of the ground yarn and the weaving density. It is preferable that the number of used pieces is 2 or more, and preferably 2 pieces at each end.
  • the entangled yarn generally, a monofilament having excellent selvage tightening performance is used.
  • a multifilament may be used.
  • the material of the entangled yarn is preferably the same as the ground yarn.
  • the fineness of the entangled yarn is 3 3 It is preferably I 6 X or less. Fineness is 3 3 If it exceeds I 6 X, fray may occur in the ears of the fabric.
  • the fineness of the entangled yarn is preferably 5 to 22 ⁇ 16 X.
  • the "addition yarn” is used for the purpose of preventing the fray of the selvage of the woven fabric, and is arranged between the entangled yarn and the warp yarn in the selvage of the woven fabric to assist the entangled yarn.
  • the planetary device is not used for the additional yarn. It is preferable to use a plain weave having excellent selvage tightness.
  • the material, type, and fineness of the additional yarn are appropriately selected depending on the type of the yarn and the weaving density. Similar to the above-mentioned entwined yarn, the additional yarn is preferably a monofilament having excellent selvage tightening performance.
  • the number of additional yarns is, for example, 2 to 12 at each end.
  • the fineness of the additional yarn is 3 3 It is preferably I 6 X or less. Fineness is 3 3 If it exceeds I 6 X, fray may occur in the ears of the fabric.
  • the fineness of the entangled yarn is preferably from 5 to 22 x 16 x.
  • the "sewing thread” may be used for the purpose of preventing flare of the woven fabric, apart from the entangled yarn and the additional yarn, and is arranged between the additional yarn and the warp yarn in the ears of the woven fabric. ⁇ 02020/174889 8 ⁇ (: 171?2020/000488
  • the extra yarn no planetary gear is used. It is preferable to use a flat tissue having excellent ear tightening properties.
  • the material, type, and fineness of the selvage yarn are appropriately selected according to the type of ground yarn and the weaving density. Since the selvage yarn is woven under a high tension, a multifilament having a total fineness of 80% or more with respect to the total fineness of the ground yarn is preferably used. If the total fineness is less than 80% of the ground yarn, high tension cannot be applied for weaving, and the flare preventing effect cannot be obtained.
  • the number of selvage threads used for example, is 4 to 8 at each end.
  • the present embodiment is characterized in that the warp crimp ratio of the ground portion of the woven fabric is 3% or more higher than the warp crimp ratio of the selvage. Further, it is more preferable that the warp crimp ratio of the selvage portion is 4% or more smaller than the warp crimp ratio of the ground portion, and further preferably 5% or more.
  • the woven yarn forming the selvage portion may be any of warp yarn, entangled yarn, additional yarn, and selvage yarn, and is preferably any of warp yarn, extra yarn, and selvage yarn.
  • the “ear part” of the fabric is a part within 100 from the edge of the fabric.
  • the “ear part” is 25 5 from the edge of the fabric.
  • the part within.
  • the selvage portion of the present embodiment has different characteristics as the textile portion from the textile portion, the portion that can be used for cutting as an air bag becomes small and the loss may increase.
  • the width of the selvage of the woven fabric is within the range.
  • the warp yarns of the woven fabric portion have a fineness and/or the twisting coefficient smaller than the warp yarns of the selvage portions. It is preferable to make the warp fineness of the fabric selvage lower than that of the ground warp because the gripping force of the weft is increased. On the other hand, if the warp fineness of the fabric selvage is too low, yarn breakage occurs at the time of weaving due to strength reduction, and weavability deteriorates.Therefore, the warp fineness of the fabric selvage is 20% to 80% higher than that of the ground warp. %, more preferably 30% to 70%,
  • the number of twists of the warp yarns of the fabric selvage is higher than that of the warp yarns of the base portion because the gripping force of the wefts is increased.
  • the twist factor in the selvage selvage is preferably 3.0 to 12.0, and 4.0. To 11.0 are more preferable, and 5.0 to 10.0 are more preferable.
  • the warp yarn of the fabric selvage has a smaller fineness than the warp yarn of the ground portion, or has a higher twist coefficient, but it has an effect of suppressing the occurrence of flare, but it is more effective when used in combination. be able to.
  • twist coefficient ! ⁇ is the total fineness of the warp, I 6 X), number of twists is I (I /
  • Twist factor 1 ⁇ Ding 0 1 1/2
  • the aspect ratio of the warp of the selvage in the fabric cross section is preferably 2.0 or less, more preferably 1.7 or less, and more preferably 1.5 or less. More preferable. Since the warp yarns that form the selvages of general fabrics have a large aspect ratio, the weft crimp ratio is low, the gripping force for sandwiching the weft yarns is small, and the weft yarns are drawn into the fabric ground portion when they are cut by a cutter. Frea occurs.
  • the woven fabric of the present embodiment by setting the aspect ratio of the warp forming the woven selvages to 2.0 or less, the crimp structure of the weft forming the woven selvages is extremely changed, and The weft crimping rate of the composition is higher than that of ordinary woven fabrics. As a result, the gripping force of the weft yarn by the warp yarn of the fabric selvage is improved, and a sufficient flare suppressing effect can be obtained.
  • the cover factor of the fabric ears is higher than the cover factor of the fabric base.
  • the cover factor of the fabric selvage is 1.02 to 1.10 times, and 1.04 to 1.08 times the cover factor of the fabric base. Is more preferable.
  • a method for manufacturing a fabric for an airbag according to an embodiment of the present invention (hereinafter, simply ⁇ 02020/174889 10 ((171?2020/000488
  • a manufacturing method is a method for manufacturing the woven fabric (woven fabric for an airbag) of the above embodiment.
  • the method for manufacturing the airbag fabric of the present embodiment is characterized by weaving the warp tension of the selvage portion to be 1.2 times or more higher than the warp tension of the base portion. Therefore, the other steps shown below are all examples, and may be replaced with other known steps.
  • the warp yarns having the total fineness described above in relation to the fabric are warped and installed in the loom.
  • wefts are installed on the loom.
  • the loom is not particularly limited. When weaving a high-density fabric, it is preferable to use a loom equipped with a full-width temple device.
  • the loom is, for example, water_jet_mu, air jet room, rapier_mu, etc.
  • the water jet room is preferable as the loom, because high-speed weaving is relatively easy and productivity is easily increased.
  • the tension applied to each warp constituting the base of the woven fabric is preferably adjusted in the range of 0.2 to 0.50.51 ⁇ 1/I6X.
  • the tension of the warp is within the above range, the resulting woven fabric can have improved dimensional stability due to a decrease in inter-single fiber voids in the yarn bundle of the multi-filament yarn constituting the woven fabric. If the warp tension is ⁇ . 2_Rei less than 1 ⁇ 1 / I 6 X, lower captive force of the weft during weaving, warp and weft and is not easily woven of the same density are obtained.
  • the warp tension exceeds 0.5 ⁇ 1 ⁇ 1/16 X, the contact area (adhesion) between the warp and the weft tends to be large in the woven fabric. Therefore, the warp tends to be fluffed, and the weavability tends to be poor.
  • the method for adjusting the warp tension is not particularly limited.
  • the warp tension can be adjusted by a method of adjusting the warp feeding speed of the loom, a method of adjusting the driving density of the weft, or the like. Whether or not the warp tension is within the above range can be confirmed, for example, by measuring the tension applied to each warp with a tension measuring device in the warp beam and the central portion of the back roller during operation of the loom. ..
  • weaving is performed by increasing the warp tension of the selvage of the woven fabric by the loom by 1.2 times or more than the warp tension of the ground portion. ⁇ 02020/174889 11 ⁇ (: 171?2020/000488
  • the method for adjusting the warp tension of the fabric selvage is not particularly limited.
  • the warp tension in the selvage of the woven fabric can be controlled by supplying warp yarns one by one from a paper tube or bobbin and controlling the tension with a tenser such as a spring washer, or by weaving the selvage in addition to the warp beam. It can be adjusted by a method of preparing a beam for the yarn, a method of changing the tension for winding only the yarn at the selvage when the warp beam is warped, or the like.
  • the woven fabric is appropriately subjected to processing such as scouring and heat setting.
  • the refining temperature in the refining process is preferably at least 20° and more preferably at least 25°. Further, the refining temperature is preferably 80 ° C or lower, more preferably 70 ° C or lower.
  • the scouring temperature is 20° or higher, the residual strain in the woven fabric is removed, the single filaments in the multifilament yarn become easy to move, and the multifilament yarn may spread flatly with respect to the woven fabric. Therefore, the woven fabric may have improved dimensional stability. Further, when the refining temperature is 80 ° C or lower, large shrinkage of the multifilament is suppressed. As a result, the fabric may have improved dimensional stability.
  • the heat set temperature in the heat set is preferably a temperature at which strain remaining in the woven fabric after weaving can be removed, and large shrinkage of the multifilament yarn can be suppressed, as in scouring.
  • the heat set temperature is preferably the 1 1 ⁇ ° ⁇ than, and more preferably 1 2 0 ° ⁇ As. Further, the heat set temperature is preferably 190 ° C. or lower. When the heat set temperature is within the above range, the resulting woven fabric can have improved dimensional stability.
  • the woven fabric that has been subjected to the above steps may be appropriately coated with a resin or an elastomer.
  • the airbag fabric of the present embodiment can be provided with non-breathability by being coated.
  • Grayed amount is preferably 5-3 5 9/2.
  • the resin or elastomer those having heat resistance, cold resistance and flame retardancy are preferable.
  • the resin or elastomer for example, silicone resin, polyamide resin, polyurethane resin, fluororesin, etc. are preferably used.
  • the woven fabric that has been subjected to the above steps may be appropriately provided with an ear cut.
  • the woven fabric is easy to adjust the position at the time of cutting by applying the ear force.
  • the part of the fabric that is discarded by the ear cut is entwined from the ears of the woven fabric, the additional yarn, the selvage, and the end of the ears where a pin hole is formed with the heat set. Cut even the warp up to a certain degree.
  • the method for manufacturing the airbag fabric of the present embodiment it is possible to suppress the retraction of the edge of the selvage at the time of weaving the airbag fabric, and it is possible to reduce flare.
  • a fabric for an airbag which is excellent in scouring performed after weaving, processing passability in a set and coating process, uniform coating property, and further excellent in cutting property and sewing property.
  • the embodiment of the present invention has been described above.
  • the present invention is not particularly limited to the above embodiment.
  • the embodiments described above mainly describe the invention having the following configurations.
  • the fabric in the airbag fabric made of synthetic fiber, the fabric includes a ground portion and ears at both ends, and the warp crimp ratio of the ground portion is 3 or more than the warp crimp ratio of the ear portion. Greater than or equal to %, air bag fabric.
  • the warp of the base portion has a fineness larger than that of the warp of the ear portion
  • Twist factor 1 ⁇ Ding 0 1 1/2
  • the total fineness of the warp is The number of twists is D (t/2.540).
  • the weaving density of each of the warp and the weft was calculated based on "3 1 _ 1 096 :20 1 0 8.6.1.” Specifically, place the sample on a flat table, count the number of warp threads and weft threads in the 2.54 ⁇ 1 section at 5 different points, excluding unnatural wrinkles and tension, and calculate the average value of each. Calculated.
  • the total fineness of the warp ( ⁇ 1 I 6 X), the warp density of 1 ⁇ 1, (this / 2.54 ⁇ 01), the total fineness of the weft Weft density is 1 ⁇ 1 2 (book / 2.
  • the crimp rate was measured based on "1 3 1 _ 1 096: 201 0 8.7 (Mitsumi method).
  • Each of the woven fabric portion and the selvage portion was cut in the thickness direction at the center of the warp to obtain a weft cross section and a warp cross section, respectively.
  • the ratio of the spread of the single yarn in the warp or weft direction (direction perpendicular to the thickness direction) (13) to the spread of the single yarn in the thickness direction of the fabric (3) ( 13/3) was obtained as the aspect ratio of the yarn (see Fig. 1).
  • the upper and lower surfaces of the woven fabric (for the warps arranged above and below the weft of the cut section) were measured at 5 points (10 points in total), and the average value was obtained.
  • Pr is retracted from the forward-most position, the weft inserted into the open warp, Pr is advanced represents a periodic motion of a series of the loom that drive the weft at a rotation angle of 0 ° ⁇ 360 ° of the loom
  • the rotation angle was 0 ° when the broom was in the foremost position, and the rotation angle at the moment when the broom hits the weft when the weft hits the weft was measured and used as the weft contact timing.
  • the cloth edge contact timing is measured by applying the timing light for the loom while the loom is operating and weaving the cloth, and the center portion of the cloth and the weft feeding side and the non-feeding side are measured.
  • each ear was measured and the average value of the ears on the yarn feeding side and the non-feeding side was calculated.
  • the difference between the ground portion and the selvage was judged as the size of the receding cloth, and the degree of receding of the cloth fell was “ ⁇ ”, and 3° or more and less than 6° was “ ⁇ ”, 6 ⁇ 02020/174889 15 ⁇ (: 171?2020/000488
  • nylon 66 As warp and weft, it is made of nylon 66, has a circular cross-sectional shape, and is composed of monofilament 1 3 6 filaments with a monofilament fineness of 3.5 ⁇ 1 I 6 X and a total fineness of 4 7 0 I.
  • a non-twisted synthetic fiber filament having 6 X, a tensile strength of 8.5 1 ⁇ 1/I 6 X and an elongation of 23.5% was prepared.
  • the weaving density of the warp is 55 5/2.5 40 Weft density 5 5/2
  • a plain fabric having a fabric width of 210 was woven. At that time, the warp tension was adjusted to 0.41/1/6X.
  • the warp yarns that make up the fabric selvages are prepared by providing one beam for each selvage with two and four windings of the warp yarns that make up the fabric selvages.
  • the tension was adjusted by adjusting.
  • Warp in the ear ⁇ 02020/174889 16 ⁇ (: 171-12020/000488
  • the warp crimp rate of the obtained selvage was 3%, and the aspect ratio was 1.6%.
  • the warp crimp ratio of the woven fabric portion was 9%.
  • the resulting woven fabric had a small flare and a uniform selvage tightness, which was good.
  • the obtained woven fabric was scoured at 65 ° ⁇ with an open soaper type scouring machine, washed with hot water at 40° ⁇ , and dried at 120° ⁇ . Furthermore, using a pin tenter dryer, set the tentering ratio to be the same as the width of the fabric after drying, and under the dimensional regulation of 2% bar feed ratio, 60 seconds at 180° ⁇ , The fabric was heat set.
  • Table 1 The properties of the resulting fabric are shown in Table 1.
  • Woven and weft woven densities are 57 threads / 2.54 cm s
  • the airbag fabric is the same as in Example 1 except that the selvage weft density is changed to 1 1 4 threads / 2.54 ⁇ . Was produced.
  • Airbag fabric was prepared in the same manner as in Example 1 except that the weave density of both warp and weft was 50 threads/2.54 cm s. It was made.
  • the warp crimp ratio in the woven fabric part was 7%.
  • the resulting woven fabric had a small flare and a uniform selvage tightness, which was good.
  • the properties of the resulting fabric are shown in Table 1.
  • the weaving density of both warp and weft is 46 threads / 2.54 cm s
  • the weaving density of the warp thread in the selvage is 100 threads / 2.
  • Woven width A woven fabric for airbag was produced in the same manner as in Example 1 except that the above was changed.
  • warp and weft it is made of nylon 66, has a circular cross-sectional shape, and is composed of 136 filaments of monofilament with monofilament fineness of 2.6 ⁇ 1 I 6 X and total fineness of 350 16 X. , Tensile strength is 8.51 ⁇ 1/16 X, Elongation is 24.5%, untwisted synthetic fiber filaments are used, and the weaving density of warp yarns in the fabric part is 62 pieces/2. Weft density 62 threads / 2. Woven density of warp yarns in the ear 93 / 2. A woven fabric for airbag was produced in the same manner as in Example 1 except that the above was adopted.
  • a woven fabric for an airbag was produced in the same manner as in Example 1 except that the total fineness of the warp constituting the woven ear portion was changed to 470 I 6 X and the twist coefficient was changed to 5.4. ⁇ 02020/174889 18 ⁇ (: 171?2020/000488
  • a fabric for an air bag was produced in the same manner as in Example 1 except that the warp yarns constituting the fabric ears were changed to non-twisted.
  • the warp yarns that compose the selvages are prepared by using 2 4 4 synthetic filaments with a twist coefficient of 7.6 of 2 3 5 1 6 X for both selvages, 2 4 4 cores respectively.
  • a fabric for an air bag was produced in the same manner as in Example 1 except that the method of supplying and adjusting the tension with a spring washer type tenser was adopted.
  • the receding of the cloth fell of the selvages could be suppressed to a small level.
  • the warp crimp ratio of the obtained fabric selvage was 4%, and the aspect ratio was 1.7%.
  • the warp crimp ratio in the woven fabric portion was 9%.
  • the obtained woven fabric had a small earlobe and a uniform state of tightness of the ears, which was good.
  • the properties of the resulting fabric are shown in Table 1.
  • the warp yarns that compose the selvages are made of synthetic filaments with a twisting coefficient of 2 3 5 1 6 X and a twisting coefficient of 7.6, 1 and 2 in both selvages.
  • a fabric for an air bag was produced in the same manner as in Example 1 except that the method of supplying and adjusting the tension with a spring washer type tenser was adopted. ⁇ 02020/174889 19 ⁇ (:171?2020/000488
  • a fabric for an airbag was produced in the same manner as in Example 1 except that the warp yarns forming the selvages were supplied from the same beam as the ground yarn at 0.401/1/16 X.
  • a fabric for an airbag was produced in the same manner as in Example 2 except that the warp yarns constituting the selvages were supplied from the same beam as the ground yarn at 0.401/1/16X.
  • a fabric for an airbag was produced in the same manner as in Example 3 except that the warp yarns forming the selvages were supplied from the same beam as the ground yarn at 0.401/1/16 X.
  • a fabric for an airbag was produced in the same manner as in Example 4 except that the warp yarns forming the selvages were supplied from the same beam as the ground yarn at 0.401/1/1/16X.
  • the warp yarns that compose the selvages are prepared by using 2 4 5 non-twisted synthetic filaments of 2 3 5 0 1 I 6 X in both selvages, and supplying each from 2 4 paper tubes.
  • a fabric for an air bag was produced in the same manner as in Example 1 except that the method of adjusting the tension with a spring washer type tensor was adopted.
  • the supply tension of the fabric ears is ⁇ . It was adjusted to a book, inserted in order from the edge side, and woven.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Woven Fabrics (AREA)
  • Air Bags (AREA)

Abstract

Ce tissu tissé pour coussin de sécurité gonflable est formé à partir de fibres synthétiques et comporte une base et des lisières sur les deux extrémités. Le pourcentage de frisure de fil de chaîne de la base est d'au moins 3 % supérieur au pourcentage de frisure de chaîne des lisières.
PCT/JP2020/000488 2019-02-26 2020-01-09 Tissu tissé pour coussin de sécurité gonflable et procédé de production de tissu tissé pour coussin de sécurité gonflable WO2020174889A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022102790A1 (fr) * 2020-11-16 2022-05-19 東洋紡株式会社 Tissu de base de coussin de sécurité gonflable et procédé de production pour celui-ci
WO2022196251A1 (fr) 2021-03-16 2022-09-22 東レ株式会社 Tissu de coussin de sécurité gonflable

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JPH10236253A (ja) * 1997-02-25 1998-09-08 Toray Ind Inc エアバッグ用基布およびエアバッグ
JP2002212856A (ja) * 2001-01-16 2002-07-31 Toyobo Co Ltd 高密度織物
JP2002212857A (ja) * 2001-01-16 2002-07-31 Toyobo Co Ltd 高密度織物の製織方法
JP2003221749A (ja) * 2002-01-29 2003-08-08 Toyobo Co Ltd エアバッグ用基布及びそれを用いたエアバッグ
JP2005179806A (ja) * 2003-12-17 2005-07-07 Toyobo Co Ltd 袋織エアバッグ用基布、エアバッグおよびエアバッグ装置
CN103233311A (zh) * 2013-04-18 2013-08-07 可隆（南京）特种纺织品有限公司 一种荷叶边少的气囊用织物及其生产方法
WO2014051049A1 (fr) * 2012-09-27 2014-04-03 東レ株式会社 Tissu tissé et procédé pour sa production
CN104278392A (zh) * 2013-07-10 2015-01-14 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
WO2015129684A1 (fr) * 2014-02-28 2015-09-03 東レ株式会社 Tissu tissé, et coussin gonflable
CN108004638A (zh) * 2017-12-22 2018-05-08 东丽酒伊织染（南通）有限公司 一种布边经向外扩率较低的安全气囊基布的生产方法

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JPH09302549A (ja) * 1996-05-15 1997-11-25 Toray Ind Inc エアバッグ用基布およびエアバッグ
JPH1076895A (ja) * 1996-09-04 1998-03-24 Teijin Ltd 織物耳部のフラット性の改善されたノンコートエアーバッグ用織物およびその製造方法
JPH10236253A (ja) * 1997-02-25 1998-09-08 Toray Ind Inc エアバッグ用基布およびエアバッグ
JP2002212856A (ja) * 2001-01-16 2002-07-31 Toyobo Co Ltd 高密度織物
JP2002212857A (ja) * 2001-01-16 2002-07-31 Toyobo Co Ltd 高密度織物の製織方法
JP2003221749A (ja) * 2002-01-29 2003-08-08 Toyobo Co Ltd エアバッグ用基布及びそれを用いたエアバッグ
JP2005179806A (ja) * 2003-12-17 2005-07-07 Toyobo Co Ltd 袋織エアバッグ用基布、エアバッグおよびエアバッグ装置
WO2014051049A1 (fr) * 2012-09-27 2014-04-03 東レ株式会社 Tissu tissé et procédé pour sa production
CN103233311A (zh) * 2013-04-18 2013-08-07 可隆（南京）特种纺织品有限公司 一种荷叶边少的气囊用织物及其生产方法
CN104278392A (zh) * 2013-07-10 2015-01-14 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
WO2015129684A1 (fr) * 2014-02-28 2015-09-03 東レ株式会社 Tissu tissé, et coussin gonflable
CN108004638A (zh) * 2017-12-22 2018-05-08 东丽酒伊织染（南通）有限公司 一种布边经向外扩率较低的安全气囊基布的生产方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022102790A1 (fr) * 2020-11-16 2022-05-19 東洋紡株式会社 Tissu de base de coussin de sécurité gonflable et procédé de production pour celui-ci
WO2022196251A1 (fr) 2021-03-16 2022-09-22 東レ株式会社 Tissu de coussin de sécurité gonflable

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