CN103669015A - Coated fabric for air bag and production method thereof - Google Patents
Coated fabric for air bag and production method thereof Download PDFInfo
- Publication number
- CN103669015A CN103669015A CN201210338744.5A CN201210338744A CN103669015A CN 103669015 A CN103669015 A CN 103669015A CN 201210338744 A CN201210338744 A CN 201210338744A CN 103669015 A CN103669015 A CN 103669015A
- Authority
- CN
- China
- Prior art keywords
- fabric
- air bag
- coated fabric
- dtex
- nylon
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Air Bags (AREA)
- Woven Fabrics (AREA)
Abstract
The invention discloses a coated fabric for an air bag and a production method of the coated fabric. The coated fabric is woven by filaments of nylon 66 with 40-60cN/dtex of primary stretching resistance degree, the coating amount of resin on the fabric is 5-15g/m<2>, and the slipping resistance in warp and weft directions of the fabric is 500-1000N. The coated fabric for the air bag has the characteristics of high slipping resistance and light weight.
Description
Technical field
The present invention relates to coated fabric and production method thereof for a kind of air bag.
Background technology
In recent years, along with the raising of people's awareness of safety, as the air bag of one of automotive safety spare part and improve rapidly installation rate.The anti-slipping property of air bag, the specific requirement that light weight has become current product development at present.Therefore the anti-slipping property and the light weight that how to improve textile for air sacs have proposed various technical schemes.
As license notification number is speciallyyed permit the manufacture method that a kind of gas cell fabric and long filament thereof are provided in No. 4492750.This invention is to be the high-tenacity superfine fibre of 1～2dtex by selecting filament fiber number, although realized high slippage resistance, low air permeability and good taking in property.But adopt high-tenacity superfine fibre can increase cost and difficulty of weaving.
While and for example providing a kind of airbag deployment in China Patent Publication No. CN 1O1363154, slippage on sewed part is little, the fabric of soft and low air permeability.This fabric is non-coated fabric, although its air permeability is very little, in embodiment, air permeability reaches 0.46L/cm
2more than/min, can not meet the requirement of low air permeability textile for air sacs completely.
Summary of the invention
The object of the present invention is to provide a kind of high slippage resistance, light-weighted air bag coated fabric and production method thereof.
Technical solution of the present invention is as follows: a kind of air bag coated fabric, and this fabric is that nylon 66 long filaments that are 40～60cN/dtex by initial stage stretching opposing degree form, the resinous coat amount on this fabric is 5～15g/m
2, this fabric through, broadwise slippage resistance, be 500～1000N, the stretch computing formula of opposing degree of described initial stage is:
R
d: initial stage stretching opposing degree (cN/dtex)
F: the load of slope maximum point (cN)
D: filament linear-density (dtex)
L: experiment length (mm)
L ': TH length (mm).
If passed through the initial stage of nylon 66 long filaments of secondary winder, stretch opposing degree lower than 40cN/dtex, with respect to nylon 66 long filaments that do not pass through secondary winder, the slippage resistance that obtains fabric does not only improve, and has also increased the cost of winder simultaneously; If passed through the initial stage of nylon 66 long filaments of secondary winder, stretch opposing degree higher than 60cN/dtex, because nylon 66 long filaments are subject to excessive drawing-off before weaving, in weaving process, will easily cause nylon 66 long filament fluffings, be difficult to weave, the firm softness that obtains fabric will become greatly, thereby can not meet the requirement of air bag module miniaturization.The initial stage stretching opposing degree of above-mentioned nylon 66 long filaments is 40～50cN/dtex preferably.On fabric, applying one deck resin is in order to reduce the air permeability of fabric, but in order to access light-weighted fabric, the coating amount of resin is 5～15g/m
2if the coating amount of fabric is less than 5g/m
2although the performance of taking in of coated fabric improves, flammability variation, when burning velocity is greater than 80mm/min, danger when too high burning velocity can increase automobile generation pyrophoricity accident; If the coating amount of fabric is greater than 15g/m
2although the flammability of coated fabric improves, fabric take in hydraulic performance decline, can not meet air bag module lightweight, the demand for development of miniaturization.The fabric that nylon 66 long filaments that are 40～60cN/dtex by above-mentioned initial stage stretching opposing degree make, its warp, broadwise slippage resistance reach 500～1000N, and high slippage resistance can make air bag bear impact and the stretching action of high-temperature high-pressure air flow when inflatable open.If having a low resistance in 500N through, broadwise slippage of fabric, air bag is made upon deployment position and can be broken and cause losing efficacy; If the slippage resistance of fabric is higher than 1000N, in gas cell fabric, the cohesive force between silk and silk is excessive, causes fabric harder, not foldable.
Air bag coated fabric of the present invention, the interlacing number of described nylon 66 long filaments is 20～35/m.If the interlacing number of nylon 66 long filaments is less than 20/m, in weaving process, yarn easily fluffs, is difficult to weave; If the interlacing number of nylon 66 long filaments more than 35/m, obtains the air permeability of fabric, can decline, under the condition of same coating amount, it is large that the air permeability of coated fabric becomes, thereby just can not meet the requirement of low air permeability.
Air bag coated fabric of the present invention, described nylon 66 long filaments are that the monofilament between 44～196 forms by radical.If monofilament radical is less than 44, that just must overstriking monofilament fiber number, the hole that obtains so fabric becomes large, cause the air permeability of fabric to become large, filament number chap meeting simultaneously makes the firm softness of fabric become large, thereby cause the folding property of fabric to decline, can not meet the demand for development of current air bag module miniaturization; If monofilament radical is greater than 192, easily break end when spinning, cause that long filament productive rate declines, production cost rises.
Air bag coated fabric of the present invention, the taking in property of this fabric is 1800cm
3below.When taking in property is 1800cm
3when following, use the module that this gas cell fabric obtains can realize miniaturization, the conveniently installation at each position in automobile.
Air bag coated fabric of the present invention, under the condition that is 19.6kPa at test pressure, the air permeability of this coated fabric is 1.0L/cm
2below/min.If the air permeability of fabric is greater than 1.0L/cm
2/ min, the air bag made from this fabric is poor air-tightness upon deployment, during use, may lose the protective effect to human body, particularly can not in the purposes of the extremely low air permeabilities of requirement such as inflation curtain type gas bag, side air bag and knee air bag, use.
Air bag coated fabric of the present invention, this coated fabric through, broadwise flammability, be below 80mm/min.When burning velocity is greater than 80mm/min, danger when too high burning velocity can increase automobile generation pyrophoricity accident.
Air bag coated fabric of the present invention, this fabric through, weft tensile strength, be 600～1000N/cm.If fabric through, weft tensile strength lower than 600N/cm, when automobile bumps airbag-releasing, because the TENSILE STRENGTH of fabric lost efficacy compared with low easy breaking; If fabric through, weft tensile strength higher than 1000N/cm, be also difficult to technically at present realize, because need to weave just and can obtain by the long filament of superhigh intensity.
The production method of coated fabric for air bag of the present invention, nylon 66 long filaments after spinning are through a winder, again at tension force for carrying out secondary winder under (0.15～0.30) * cN/dtex, then carry out warping, weave and obtain fabric, then on fabric, to apply one deck coating amount be 5～15g/m
2resin after, through HEAT SETTING, finally make finished product.If when secondary winder, tension force condition is lower than 0.15 * cN/dtex, more than the initial stage of nylon 66 long filaments stretching opposing degree does not reach 40 cN/dtex, with respect to nylon 66 long filaments that only passed through a winder, the slippage resistance that obtains fabric does not only improve, and has also increased the cost of winder simultaneously; If when secondary winder, tension force condition, higher than 0.30 * cN/dtex, because nylon 66 long filaments are subject to excessive drawing-off before weaving, will easily cause nylon 66 long filament fluffings in weaving process, the firm softness that obtains fabric will become greatly, thereby can not meet the requirement of air bag module miniaturization.Wherein the speed of secondary winder is conventional speeds, does not limit especially.The present invention's employing is scraped the skill in using a kitchen knife in cookery and is carried out coating processing, and the selected synthetic resin of coating can be silicone, polyurethane, polyacrylate, butyl rubber, EPDM, chlorobutadiene, neoprene, polyamide, hydrogenated nitrile-butadiene rubber, ethene-ester vinyl acetate copolymer and their any mixture and dispersion.
Air bag of the present invention has high slippage resistance, light-weighted feature with coated fabric.
Accompanying drawing explanation
Fig. 1 is the load elongation chart of long filament.
specific implementation method
By following examples, illustrate in greater detail the present invention, the physical property in embodiment is measured and is obtained by following testing standard and method.
[the initial stage stretching opposing degree of long filament]
According to the JIS L1017-2002 test initial stage opposing degree that stretches.According to the load elongation chart of the long filament shown in Fig. 1, find out the some A of stretching initial stage slope maximum, obtain this and put corresponding load and displacement, by following formula, calculate the initial stage stretching opposing degree of long filament:
R
d: initial stage stretching opposing degree (cN/dtex)
F: the load (cN) of slope maximum point A
D: fibre fineness (dtex)
L: experiment length (mm)
L ': TH length (mm).
[interlacing number]
The long filament that is 1m by length is put into water, runs into the feature spreading after water by long filament, records the number of long filament interlacing point, gets the mean value of 10 threads interlacing point numbers, thereby obtains the interlacing number of long filament.
[slippage resistance]
According to the testing standard of ASTM D6479-02 slippage resistance, test.Concrete grammar is, samples 50 * 300mm on fabric, and the measuring head spacing of tension test instrument is 200mm, with the speed of 200mm/min, tests, and obtains slippage resistance.
[taking in property]
According to ASTM D6478-00 testing standard, measure, fabric, after folding, the standard holder of putting into obtains its compression curve, and reading respectively loading on compression curve is 20N, 40N, 60N, 80N, 100N, 120N, 140N, 160N, the thickness of base cloth during 180N.According to following formula, calculate the value of taking in property:
Taking in property (cm
3summation * 100 * 150/1000 of the corresponding thickness of)=each loading.
[air permeability]
Under the condition that is 19.6kPa at test pressure according to JIS L1096, measure, the air mass flow of passing through according to the unit are of now testing position obtains air permeability.
[flammability]
According to FMVSS 302, measure and obtain flammability.
[TENSILE STRENGTH]
According to the TENSILE STRENGTH of the stretching test method test fabric of JIS K6404 fabric.Concrete method of testing is as follows: on fabric, adopt and pull limit sliver sample method sampling 30 * 250mm, the measuring head spacing of tension test instrument is 150mm, with the speed of 200mm/min, tests, and obtains TENSILE STRENGTH.
Embodiment 1
Employing fiber number is that 470dtex, TENSILE STRENGTH are that 8.2cN/dtex, monofilament radical are that circular cross-section nylon 66 long filaments of 66 are under 0.15 * cN/dtex, to carry out secondary winder at tension force, and the initial stage that the obtains opposing degree that stretches is that 40cN/dtex, interlacing number are nylon 66 long filaments of 30/m.The above-mentioned long filament that makes, through warping, is weaved with water jet looms, made after the plain cloth that is 46 pieces/inch through, latitudinal density, then in above-mentioned fabrics, apply one deck 15g/m
2silicone resin, finally make air bag coated fabric of the present invention, its physical property is in Table 1.
Embodiment 2
Employing fiber number is that 350dtex, TENSILE STRENGTH are that 8.2cN/dtex, monofilament radical are that circular cross-section nylon 66 long filaments of 72 are under 0.2 * cN/dtex, to carry out secondary winder at tension force, and the initial stage that the obtains opposing degree that stretches is that 50cN/dtex, interlacing number are nylon 66 long filaments of 30/m.The above-mentioned long filament that makes, through warping, is weaved with water jet looms, made after the plain cloth that is 58 pieces/inch through, latitudinal density, then in above-mentioned fabrics, apply one deck 10g/m
2silicone resin, finally make air bag coated fabric of the present invention, its physical property is in Table 1.
Embodiment 3
Employing fiber number is that 470dtex, TENSILE STRENGTH are that 8.2cN/dtex, monofilament radical are that circular cross-section nylon 66 long filaments of 144 are under 0.26 * cN/dtex, to carry out secondary winder at tension force, and the initial stage that the obtains opposing degree that stretches is that 55cN/dtex, interlacing number are nylon 66 long filaments of 25/m.The above-mentioned long filament that makes, through warping, is weaved with water jet looms, made after the plain cloth that is 51 pieces/inch through, latitudinal density, then in above-mentioned fabrics, apply one deck 5g/m
2silicone resin, finally make air bag coated fabric of the present invention, its physical property is in Table 1.
Comparative example 1
Employing fiber number is that 470dtex, TENSILE STRENGTH are that 8.2cN/dtex, monofilament radical are that 66, the initial stage opposing degree that stretches is that 22cN/dtex, interlacing number are that circular cross-section nylon 66 long filaments of 38/m pass through warpings, with water jet looms, weave, make after the plain cloth that is 46 pieces/inch through, latitudinal density, then in above-mentioned fabrics, apply one deck 15g/m
2silicone resin, finally make air bag coated fabric of the present invention, its physical property is in Table 1.
Comparative example 2
Employing fiber number is that 350dtex, TENSILE STRENGTH are that 8.2cN/dtex, monofilament radical are that 72, the initial stage opposing degree that stretches is that 27cN/dtex, interlacing number are that circular cross-section nylon 66 long filaments of 11/m pass through warpings, with water jet looms, weave, make after the plain cloth that is 58 pieces/inch through, latitudinal density, then in above-mentioned fabrics, apply one deck 10g/m
2silicone resin, finally make air bag coated fabric of the present invention, its physical property is in Table 1.
Comparative example 3
Employing fiber number is that 470dtex, TENSILE STRENGTH are that 8.2cN/dtex, monofilament radical are that 144, the initial stage opposing degree that stretches is that 32cN/dtex, interlacing number are that circular cross-section nylon 66 long filaments of 15/m pass through warpings, with water jet looms, weave, make after the plain cloth that is 51 pieces/inch through, latitudinal density, then in above-mentioned fabrics, apply one deck 25g/m
2silicone resin, finally make air bag coated fabric of the present invention, its physical property is in Table 1.
Claims (8)
1. an air bag coated fabric, is characterized in that: this fabric is that nylon 66 long filaments that are 40～60cN/dtex by initial stage stretching opposing degree form, and the resinous coat amount on this fabric is 5～15g/m
2, this fabric through, broadwise slippage resistance, be 500～1000N, the stretch computing formula of opposing degree of described initial stage is:
R
d: initial stage stretching opposing degree (cN/dtex)
F: the load of slope maximum point (cN)
D: filament linear-density (dtex)
L: experiment length (mm)
L ': TH length (mm).
2. air bag coated fabric according to claim 1, is characterized in that: the interlacing number of described nylon 66 long filaments is 20～35/m.
3. air bag coated fabric according to claim 1 and 2, is characterized in that: described nylon 66 long filaments are that the monofilament between 44～196 forms by radical.
4. air bag coated fabric according to claim 1 and 2, is characterized in that: the taking in property of this fabric is 1800cm
3below.
5. air bag coated fabric according to claim 1 and 2, is characterized in that: under the condition that is 19.6kPa at pressure, the air permeability of this coated fabric is 1.0L/cm
2below/min.
6. air bag coated fabric according to claim 1 and 2, is characterized in that: this coated fabric through, broadwise flammability, be below 80mm/min.
7. air bag coated fabric according to claim 1 and 2, is characterized in that: this coated fabric through, weft tensile strength, be 600～1000N/cm.
8. the production method of coated fabric for an air bag claimed in claim 1, it is characterized in that: nylon 66 long filaments after spinning are through a winder, at tension force, under (0.15～0.30) * cN/dtex, carry out secondary winder again, then carry out warping, weave and obtain fabric, then on fabric, to apply one deck coating amount be 5～15g/m
2resin after, through HEAT SETTING, finally make finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338744.5A CN103669015A (en) | 2012-09-14 | 2012-09-14 | Coated fabric for air bag and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338744.5A CN103669015A (en) | 2012-09-14 | 2012-09-14 | Coated fabric for air bag and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103669015A true CN103669015A (en) | 2014-03-26 |
Family
ID=50307737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210338744.5A Pending CN103669015A (en) | 2012-09-14 | 2012-09-14 | Coated fabric for air bag and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103669015A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107407017A (en) * | 2015-03-30 | 2017-11-28 | 东丽株式会社 | The manufacture method of coated base fabric for airbags, air bag and coated base fabric for airbags |
| CN108350622A (en) * | 2015-09-30 | 2018-07-31 | 世联株式会社 | Textile for air sacs and air bag |
| US20230147247A1 (en) * | 2021-10-28 | 2023-05-11 | Toyota Research Institute, Inc. | Sensor devices including force sensors and robots incorporating the same |
-
2012
- 2012-09-14 CN CN201210338744.5A patent/CN103669015A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107407017A (en) * | 2015-03-30 | 2017-11-28 | 东丽株式会社 | The manufacture method of coated base fabric for airbags, air bag and coated base fabric for airbags |
| CN108350622A (en) * | 2015-09-30 | 2018-07-31 | 世联株式会社 | Textile for air sacs and air bag |
| US10737656B2 (en) | 2015-09-30 | 2020-08-11 | Seiren Co., Ltd. | Fabric for air bag and air bag |
| US20230147247A1 (en) * | 2021-10-28 | 2023-05-11 | Toyota Research Institute, Inc. | Sensor devices including force sensors and robots incorporating the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5100895B2 (en) | Airbag base fabric | |
| KR102522870B1 (en) | Base fabric for airbag, airbag and manufacturing method of base fabric for airbag | |
| US10239481B2 (en) | Polyester base fabric for airbag, polyester airbag, and method of manufacturing polyester base fabric for airbag | |
| WO2004031472A1 (en) | Coated base fabric for air bags and air bags | |
| JP5093374B2 (en) | Airbag | |
| JP2012052280A (en) | Woven fabric for air bag and air bag | |
| CN101205650A (en) | Non-coating fabric of safety gas-bag | |
| JPWO2019167820A1 (en) | Non-coated base cloth for airbags, coated base cloth for airbags, and airbags using it | |
| CN101634074A (en) | Fabric for safety air bag and production method thereof | |
| WO2023037982A1 (en) | Airbag fabric and airbag | |
| CN103669015A (en) | Coated fabric for air bag and production method thereof | |
| CN101608371B (en) | Fabric for air bag | |
| WO2024048153A1 (en) | Airbag fabric | |
| CN101348962A (en) | Non-coated fabric of safety air bag | |
| JP2011131874A (en) | Airbag | |
| WO2020153446A1 (en) | Coated base fabric for airbag and airbag including same | |
| CN111164248B (en) | Airbag base fabric and airbag including the same | |
| CN107529565B (en) | Fabric | |
| CN102582566A (en) | One-step formed curtain airbag | |
| CN101580996B (en) | Textile fabric for air bag and production method thereof | |
| CN102168333B (en) | Fabric for safety air bag | |
| CN101858005A (en) | Fabrics for air pocket and production method thereof | |
| CN103321052A (en) | Coated fabric for safety airbag and production method thereof | |
| CN106319720A (en) | Safe air bag fabric, manufacturing method thereof, and safe air bag | |
| CN102978781B (en) | Fabric with small bias filling rate for airbag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |