WO2022102790A1 - エアバッグ用基布およびその製造方法 - Google Patents
エアバッグ用基布およびその製造方法 Download PDFInfo
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- WO2022102790A1 WO2022102790A1 PCT/JP2021/042123 JP2021042123W WO2022102790A1 WO 2022102790 A1 WO2022102790 A1 WO 2022102790A1 JP 2021042123 W JP2021042123 W JP 2021042123W WO 2022102790 A1 WO2022102790 A1 WO 2022102790A1
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- WIPO (PCT)
- Prior art keywords
- base fabric
- yarn
- boiling water
- width
- airbag
- Prior art date
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- 239000004744 fabric Substances 0.000 title claims abstract description 69
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000009835 boiling Methods 0.000 claims abstract description 36
- 238000009991 scouring Methods 0.000 claims description 4
- 238000009941 weaving Methods 0.000 abstract description 10
- 239000002759 woven fabric Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000001035 drying Methods 0.000 description 9
- 229920002302 Nylon 6,6 Polymers 0.000 description 8
- 229920002994 synthetic fiber Polymers 0.000 description 7
- 239000012209 synthetic fiber Substances 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229920003189 Nylon 4,6 Polymers 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 210000000624 ear auricle Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- 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
-
- 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
- D03D15/567—Shapes or effects upon shrinkage
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
-
- 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
- D10B2401/00—Physical properties
- D10B2401/04—Heat-responsive characteristics
-
- 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
Definitions
- the present invention relates to an airbag base fabric and a method for manufacturing an airbag base fabric.
- Airbags are installed in automobiles for the purpose of protecting the occupants' bodies by instantaneously inflating them with high-temperature, high-pressure gas in the event of a collision caused by a car accident.
- the airbag base fabric is required to have high strength and low air permeability.
- the base cloth after refining shrinkage is referred to as a base cloth for airbags.
- Flare also called earlobe or loosening
- Flare occurs at the widthwise end of the conventional airbag base fabric, which is a high-density woven fabric. Flare causes other defects such as defects in the width direction of the fabric, ear height when the fabric is rolled, and wrinkles.
- the cause of flare is the crimp ratio of the warp yarns that make up the airbag base fabric (shrinkage of the woven yarns. The yarns are wavy when viewed in cross section) in the center and width directions of the base fabric. There is a difference at the ends.
- Patent Document 1 defines a desirable boiling water shrinkage rate of the yarns constituting the woven fabric, but there is no description of a technique for adding yarns having different boiling water shrinkage ratios to improve the uniformity of the woven fabric, and the center in the width direction and the end in the width direction are not described. The uniformity of the part was insufficient.
- the present invention utilizes a specific increased yarn whose boiling water shrinkage ratio is different from that of the ground yarn constituting the airbag base fabric, and determines the difference in crimp ratio between the width direction central warp yarn and the width direction end warp yarn in the base fabric width direction. It is a technology to improve the uniformity of reduced fabrics.
- the present invention is as follows. (1) In an airbag base cloth in which an ear tuft remains at the end in the width direction, at least two or more yarns are added to each of both ends in the width direction.
- the crimp rate of the warps arranged in the center in the width direction of the base cloth is in the range of 7 to 20%.
- the crimp rate of the warps arranged at both ends in the width direction of the base cloth is 3 to 15% or less, and the crimp ratio difference between the warps arranged at both ends and the warps arranged at the center is 5.0% or less.
- Base cloth for airbags is 3.
- the yarn increase which is characterized by a difference in the boiling water shrinkage rate between the ground yarn and the increased yarn (boiling water shrinkage rate of the ground yarn> boiling water shrinkage ratio of the increased yarn), even if the ground yarn tries to shrink in boiling water, it is adjacent. Since the matching yarn increase is smaller than the shrinkage, the deformation of the end in the width direction due to the shrinkage is suppressed, the change in the crimp of the warp arranged at the end in the width direction is small, and the crimp ratio in the center of the base cloth is about the same. As the condition is maintained, flare is reduced as a result.
- the base fabric for airbags of the present invention is a woven fabric composed of synthetic fiber multifilaments.
- the total fineness of the synthetic fiber multifilament constituting the airbag base fabric is preferably 200 to 600 dtex, more preferably 300 to 550 dtex.
- the total fineness is 200 dtex or more, it is not necessary to increase the weaving density excessively, so that it is possible to suppress an excessive increase in the binding force of the warp and weft, and it becomes easy to keep the storability in the airbag module within an appropriate range. ..
- the total fineness is 600 dtex or less, it becomes easy to suppress an excessive increase in the rigidity of the woven fabric constituent yarn itself.
- the total fineness of the synthetic fiber multifilament is 200 to 600 dtex, it is preferable that a base fabric for an airbag, which is moderately flexible and has good storage capacity in a module, can be easily obtained.
- the total fineness of the synthetic fiber multifilament constituting the base fabric for an airbag is determined as follows.
- the airbag base fabric of the present invention is woven with ground yarn (warp and weft constituting the airbag base fabric), and further, is woven by including an increase yarn having a specific physical property. It is desirable that the boiling water shrinkage rate of the increased yarn is smaller than the boiling water shrinkage rate of the ground yarn constituting the airbag base fabric, and in particular, it is desirable that the boiling water shrinkage ratio of the increased yarn is smaller than the boiling water shrinkage ratio of the ground yarn (warp).
- the difference in boiling water shrinkage between the ground yarn and the increased yarn is preferably 0.8 to 20%, more preferably 1.5 to 15 in order to suppress flare due to shrinkage of the end in the width direction of the base cloth during scouring shrinkage and drying. %, Especially preferably 4-12%. If it is less than 0.8%, the effect of suppressing deformation is small due to shrinkage, and if it exceeds 20%, the shrinkage of the ground yarn is too large and the woven structure collapses, which adversely affects the strength and air permeability.
- the boiling water shrinkage rate between the ground yarn and the increased yarn used for the airbag base fabric of the present invention may be as follows: ground yarn> increased yarn, but it is more effective if the difference is 0.8% or more.
- the increased yarn may be a multifilament yarn, a monofilament yarn, a false twisted yarn or a crimped yarn, and the material may be nylon 66 fiber, nylon 6 fiber, polyester fiber or the like.
- nylon 66 fiber is often used as the ground thread of the base fabric for airbags, and the boiling water shrinkage rate of the polyester fiber is lower than that of the nylon 66 fiber. It is preferable to use.
- the weaving density is measured according to JIS L1096 (2010) 8.6.1. Specifically, after placing the sample on a flat table to remove unnatural wrinkles and tension, count the number of warps and wefts in a 2.54 cm section at five different locations, and use the average value of each as the unit length. Calculated and used as the weaving density.
- the boiling water shrinkage rate of the raw yarn was measured according to JIS L1013 (2010) hot water dimensional change rate filament dimensional change rate (method B). Specifically, the measurement is performed as follows. An initial load is applied to the sample, marking two points separated by 500 mm, the initial load is removed, and the sample is immersed in hot water at 100 ° C. for 30 minutes. After that, the sample is taken out, lightly drained with a absorbent paper or cloth, air-dried, and then the initial load is applied again. The length between the above two points is measured, the hot water dimensional change rate (%) is calculated by the following formula, and the average value of the three times is taken as the boiling water shrinkage rate.
- ⁇ L (L-500) / 500 ⁇ 100 ⁇ L: Boiling water shrinkage rate (%)
- L Length between two points (mm)
- the material of the synthetic fiber multifilament constituting the base fabric for the airbag of the present invention is not particularly limited and can be widely selected.
- a multifilament composed of a polyamide resin such as nylon 6, nylon 66, and nylon 46, and a polyester resin mainly composed of polyethylene terephthalate is preferable.
- the synthetic fiber multifilament constituting the base fabric for an airbag of the present invention may contain various additives usually used for improving productivity or characteristics in the manufacturing process of the raw yarn and the manufacturing process of the base fabric. good.
- the synthetic fiber multifilament constituting the base fabric for an airbag of the present invention is made of, for example, a heat stabilizer, an antioxidant, a light stabilizer, a smoothing agent, an antistatic agent, a plasticizer, a thickener, a pigment and a flame retardant. It may contain at least one selected from the group.
- the number of yarns to be increased in the airbag base fabric of the present invention is not particularly limited, but the effect tends to increase as the number of yarns increases. Considering operability and the like, about 2 to 12 pieces are preferable, but since there are differences depending on the manufacturing equipment, there is no problem even if any number of pieces are inserted as long as the operability and quality are not impaired.
- the width of the base cloth for an airbag of the present invention is not particularly limited, but the wider the width, the more easily flare occurs. It is useful when the width is 160 cm or more, and is particularly useful when the width is 180 cm or more.
- the flare reduction technique of the present invention works particularly effectively on high-density woven fabrics.
- the cover factor of the base fabric for an airbag of the present invention is preferably 1800 to 2600, and particularly preferably 2000 to 2500.
- the structure of the woven fabric of the airbag base fabric of the present invention can be a plain structure, a twill structure, a reddish structure, a deformed structure thereof, or the like, but is not limited to a specific structure.
- the base cloth for an airbag of the present invention has a base cloth width direction end portion by inserting a plurality of increased threads (ground thread> increased thread) having a difference in boiling water shrinkage rate of 0.8% or more from the ground thread in the ear portion.
- ground thread> increased thread a plurality of increased threads having a difference in boiling water shrinkage rate of 0.8% or more from the ground thread in the ear portion.
- the difference in crimp rate between the warps arranged in the center of the base cloth in the width direction and the warps lined up at the end in the width direction of the base cloth is 5.0% or less, and flare. Is improved.
- the airbag base fabric of the present invention can be further coated with a silicone resin or the like as necessary to further improve low air permeability, and can be usefully used as a coated airbag base fabric. Is.
- Nylon 66 filament yarn (monofilament cross section is a round cross section) with a fineness of 470 dtex / 144 f boiling water shrinkage rate of 8.4% is used in the warp and weft direction of the ground yarn, and the weave density is 53.0 yarns / 2.54 cm in both warp and weft.
- Using a nylon jet room add two yarns with a boiling water shrinkage rate of 0.3% at each end (four yarns in total), weave in a plain weave, and then pass through a hot water shrink tank at 98 ° C without drying.
- a two-stage suction drum dryer was used to pass the drying finishing step in which the temperature T1 of the first stage was controlled to 130 ° C. and the temperature T2 of the second stage was controlled to 135 ° C.
- Example 2 Nylon 66 filament yarn (monofilament cross section is a round cross section) with a fineness of 470 dtex / 144 f boiling water shrinkage rate of 8.4% is used in the warp and weft direction of the ground yarn, and the weave density is 53.0 yarns / 2.54 cm in both warp and weft.
- Using a nylon water jet room add 10 yarns with a boiling water shrinkage rate of 0.3% at each end (20 yarns in total), weave in a plain weave, and then pass through a hot water shrink tank at 98 ° C without drying. Subsequently, a two-stage suction drum dryer was used to pass the drying finishing step in which the temperature T1 of the first stage was controlled to 130 ° C. and the temperature T2 of the second stage was controlled to 135 ° C.
- Example 3 Nylon 66 filament yarn (monofilament cross section is a round cross section) with a fineness of 470 dtex / 144 f boiling water shrinkage rate of 8.4% is used in the warp and weft direction of the ground yarn, and the weave density is 53.0 yarns / 2.54 cm in both warp and weft.
- weave 10 yarns with a boiling water shrinkage rate of 6.8% at each end (20 yarns in total) in a plain weave and then pass through a hot water shrink tank at 98 ° C without drying.
- a two-stage suction drum dryer was used to pass the drying finishing step in which the temperature T1 of the first stage was controlled to 130 ° C. and the temperature T2 of the second stage was controlled to 135 ° C.
- Nylon 66 filament yarn (monofilament cross section is a round cross section) with a fineness of 470 dtex / 144f boiling water shrinkage rate of 8.4% is used in the warp and weft direction of the ground yarn, and the weaving density is 53.0 yarns / 2.54 cm in both warp and weft.
- the yarn After weaving in a plain weave using a water jet room, the yarn is passed through a hot water shrink tank at 98 ° C without drying, and then a two-stage suction drum dryer is used to set the temperature T1 in the first stage to 130 ° C. Was passed through a drying finishing step in which the temperature T2 of the second stage was controlled to 135 ° C.
- the quality of the airbag base fabric can be improved by reducing the difference in crimp ratio between the center in the width direction and the end in the width direction, which contributes to cost reduction in the airbag manufacturing industry.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Woven Fabrics (AREA)
- Air Bags (AREA)
Abstract
Description
すなわち、本発明は下記の通りである。
(1)基布巾方向端部に耳房が残ったエアバッグ用基布において、巾方向両端部それぞれに、少なくとも2本以上の増糸を含み、
基布巾方向の中央部に並べられた経糸のクリンプ率が7~20%の範囲であり、
基布巾方向の両端部に並べられた経糸のクリンプ率が3~15%以下であり、上記両端部に並べられた経糸と中央部に並べられた経糸の、クリンプ率差が5.0%以下であるエアバッグ用基布。
(2)増糸の沸水収縮率がエアバッグ基布を構成する地糸の沸水収縮率よりも小さく、その差が0.8%以上である、(1)に記載のエアバッグ用基布。
(3)地糸の沸水収縮率が増糸の沸水収縮率よりも大きく、且つ地糸と増糸の沸水収縮率の差が0.8%以上である増糸を用い、基布巾方向両端部それぞれに、少なくとも2本以上の増糸を含ませ、精練収縮を行うことを特徴とする、(1)に記載のエアバッグ用基布の製造方法。
前記エアバッグ用基布を構成する合成繊維マルチフィラメントの総繊度は、好ましくは200~600dtexであり、より好ましくは300~550dtexである。総繊度が200dtex以上であれば、過度に織密度を高くする必要がないため、経糸と緯糸の拘束力の過度の上昇を抑え、エアバッグモジュールでの収納性を適切な範囲内に留めやすくなる。また、総繊度が600dtex以下であれば、織物構成糸自体の剛性の過度な上昇を抑えやすくなる。また、合成繊維マルチフィラメントの総繊度が200~600dtexであれば、適度に柔軟であり、そのためにモジュールへの良好な収納性を有するエアバッグ用基布が得られやすく好ましい。
F0=10000×m/0.9×(100+R0)/100
F0:正量繊度(dtex)
m :試料の絶乾質量(g)
R0:公定水分率(%)
具体的には、試料を平らな台の上に置き不自然なしわおよび張力を除いてから、異なる5か所について2.54cm区間の経糸および緯糸の本数を数え、それぞれの平均値を単位長さについて算出し、織密度とする。
試料に初荷重をかけ、500mm離間する2点をマーキングしてから初荷重を除き、これを100℃の熱水中に30分間浸漬する。その後、試料を取り出して軽く吸取紙または布で水を切り、風乾後再び初荷重をかける。上記2点間の長さを測り、次の式によって熱水寸法変化率(%)を算出し、3回の平均値を沸水収縮率とする。
ΔL=(L-500)/500×100
ΔL:沸水収縮率(%) L:2点間の長さ(mm)
なお、CFは下記の式により計算した。
CF=(A×0.9)1/2×(W1)+(B×0.9)1/2×(W2)
式中、AおよびBは経糸および緯糸の太さ(dtex)を示し、W1およびW2は経織密度および緯織密度(本/2.54cm)を示す。
JIS L-1096 8.7 B法記載の方法で測定した。
サンプルは基布巾方向中央から10本採取し、基布巾方向端部は増糸を除いた巾方向最端部の地糸を左右10本ずつ採取し、基布巾方向中央と巾方向端部のそれぞれの平均値を求めた。クリンプ率の差は基布巾方向右端部と巾方向左端部が基布巾方向中央と比較して大きい方を採用した。
JIS L1096(2010)8.6.1により測定した。試料を平らな台の上に置き、不自然なしわおよび張力を除いて、2.54cm区間の経糸および緯糸の本数を数え密度とした。計測数は耳房の根元から5cm間隔でn=35以上としタテ密度とヨコ密度の両方を計測しその差を計測箇所毎に算出した。
地糸の経緯方向に繊度470dtex/144f沸水収縮率8.4%のナイロン66フィラメント原糸(モノフィラメント断面は丸断面である)を用い、経緯とも53.0本/2.54cmの織密度になるようウォータージェットルームを用いて沸水収縮率0.3%の増糸を両端に2本づつ(総計4本)入れ平織にて製織した後、乾燥させずに98℃の熱水収縮槽を通過させ、引き続き、2段のサクションドラム乾燥機を使い、1段目の温度T1を130℃に、2段目の温度T2を135℃に制御した乾燥仕上工程を通過させた。
地糸の経緯方向に繊度470dtex/144f沸水収縮率8.4%のナイロン66フィラメント原糸(モノフィラメント断面は丸断面である)を用い、経緯とも53.0本/2.54cmの織密度になるようウォータージェットルームを用いて沸水収縮率0.3%の増糸を両端に10本づつ(総計20本)入れ平織にて製織した後、乾燥させずに98℃の熱水収縮槽を通過させ、引き続き、2段のサクションドラム乾燥機を使い、1段目の温度T1を130℃に、2段目の温度T2を135℃に制御した乾燥仕上工程を通過させた。
地糸の経緯方向に繊度470dtex/144f沸水収縮率8.4%のナイロン66フィラメント原糸(モノフィラメント断面は丸断面である)を用い、経緯とも53.0本/2.54cmの織密度になるようウォータージェットルームを用いて沸水収縮率6.8%の増糸を両端に10本づつ(総計20本)平織にて製織した後、乾燥させずに98℃の熱水収縮槽を通過させ、引き続き、2段のサクションドラム乾燥機を使い、1段目の温度T1を130℃に、2段目の温度T2を135℃に制御した乾燥仕上工程を通過させた。
地糸の経緯方向に繊度470dtex/144f沸水収縮率8.4%のナイロン66フィラメント原糸(モノフィラメント断面は丸断面である)を用い、経緯とも53.0本/2.54cmの織密度になるようウォータージェットルームを用いて平織にて製織した後、乾燥させずに98℃の熱水収縮槽を通過させ、引き続き、2段のサクションドラム乾燥機を使い、1段目の温度T1を130℃に、2段目の温度T2を135℃に制御した乾燥仕上工程を通過させた。
Claims (3)
- 基布巾方向端部に耳房が残ったエアバッグ用基布において、
巾方向両端部それぞれに、少なくとも2本以上の増糸を含み、
基布巾方向の中央部に並べられた経糸のクリンプ率が7~20%の範囲であり、
基布巾方向の両端部に並べられた経糸のクリンプ率が3~15%以下であり、
上記両端部に並べられた経糸と中央部に並べられた経糸の、クリンプ率差が5.0%以下であるエアバッグ用基布。 - 増糸の沸水収縮率が
エアバッグ基布を構成する地糸の沸水収縮率よりも小さく、
その差が0.8%以上である、請求項1に記載のエアバッグ用基布。 - 地糸の沸水収縮率が増糸の沸水収縮率よりも大きく、且つ地糸と増糸の沸水収縮率の差が0.8%以上である増糸を用い、基布巾方向両端部それぞれに、少なくとも2本以上の増糸を含ませ、精練収縮を行うことを特徴とする、請求項1に記載のエアバッグ用基布の製造方法。
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EP21892035.3A EP4245903A1 (en) | 2020-11-16 | 2021-11-16 | Airbag base fabric and production method therefor |
CN202180075989.0A CN116547176A (zh) | 2020-11-16 | 2021-11-16 | 安全气囊基布及其生产方法 |
JP2022562232A JPWO2022102790A1 (ja) | 2020-11-16 | 2021-11-16 | |
MX2023005673A MX2023005673A (es) | 2020-11-16 | 2021-11-16 | Tela de base para bolsa de aire, y metodo de produccion para la misma. |
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JP2002069790A (ja) * | 2000-06-13 | 2002-03-08 | Asahi Kasei Corp | 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 |
WO2014123090A1 (ja) * | 2013-02-06 | 2014-08-14 | 旭化成せんい株式会社 | エアバッグ用織物および織物ロール |
WO2020174889A1 (ja) * | 2019-02-26 | 2020-09-03 | 東レ株式会社 | エアバッグ用織物およびエアバッグ用織物の製造方法 |
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- 2021-11-16 CN CN202180075989.0A patent/CN116547176A/zh active Pending
- 2021-11-16 WO PCT/JP2021/042123 patent/WO2022102790A1/ja active Application Filing
- 2021-11-16 EP EP21892035.3A patent/EP4245903A1/en active Pending
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2002069790A (ja) * | 2000-06-13 | 2002-03-08 | Asahi Kasei Corp | 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 |
WO2014123090A1 (ja) * | 2013-02-06 | 2014-08-14 | 旭化成せんい株式会社 | エアバッグ用織物および織物ロール |
WO2020174889A1 (ja) * | 2019-02-26 | 2020-09-03 | 東レ株式会社 | エアバッグ用織物およびエアバッグ用織物の製造方法 |
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MX2023005673A (es) | 2023-05-26 |
EP4245903A1 (en) | 2023-09-20 |
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