CN101864634A - Fabric for airbags - Google Patents
Fabric for airbags Download PDFInfo
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- CN101864634A CN101864634A CN200910136865A CN200910136865A CN101864634A CN 101864634 A CN101864634 A CN 101864634A CN 200910136865 A CN200910136865 A CN 200910136865A CN 200910136865 A CN200910136865 A CN 200910136865A CN 101864634 A CN101864634 A CN 101864634A
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- fabric
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- slippage resistance
- warp
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Abstract
The invention discloses a fabric for airbags. The fabric is treated by organic silicon solution at least for one time in the after-treatment process, and then being thermoformed. The fabric has high slippage resistance, the warp-wise slippage resistance is 400-900 N, and the weft-wise slippage resistance is 400-900 N. During the safety airbag made by the fabric is unfolded quickly, the seaming position of the same has high slippage resistance, thereby preventing the seaming position from cracking due to overhigh internal pressure. The safety airbag made of the fabric has the advantages of favorable softness, low air permeability and high dimensional stability.
Description
Technical field:
The present invention relates to a kind of air bag fabric by special back processed, be specifically related to a kind ofly in the process of opening fast, its suture site has the air bag fabric that fine antiskid moves performance.
Background technology:
In recent years, along with the optimization of automotive performance, the improvement of road conditions and the quickening of people's rhythm of life, the speed that vehicle travels constantly improves.How in the collision accident of fierceness, effectively to ensure driver and conductor's safety, paid more and more attention.Vehicle is the air bag fast aeration when being subjected to clashing into, the huge internal pressure of the inner generation of air bag, and this moment, gas cell fabric must have lower venting quality, to form the buffer air bag between human body and its place ahead mechanical component.In human body and air bag contact process, by the quick exhaust of the steam vent at air bag side, the back side air bag is shunk rapidly, absorb the proal energy of driver and conductor, the secondary injury of having avoided the driver and conductor to be gone back to cause by bounce-back.Simultaneously, when air bag launches under action of high-speed airflow, comprehensive function such as be subjected to stretching, tear, so air bag must reach certain stretching, tear brute force, air-flow when bearing airbag deployment and driver and conductor's impact.
For prevent air bag in the process of launching since the effect of high temperature and high pressure gas to cause making position generation slippage excessive, so require fabric for safety air bag must have higher slippage resistance.
The woven safe air bag fabric of odd-shaped cross section synthetic fiber filament that has certain flatness with a kind of is disclosed among the patent CN1603174A, though this fabric has been realized lower venting quality, but depart from because entanglement takes place when weaving flat filament easily, thereby make the slippage resistance of fabric reduce, and venting quality variation.
Disclose among the patent CN1381366A after adopting high density to weave, by contraction processing or calendering processing, make fabric have characteristics such as lightweight, low venting quality again, but after fabric is processed through calendering, can make the brute force of tearing of fabric descend, influence the performance of safe air bag fabric.
Summary of the invention:
For these reasons, the invention provides a kind of air bag fabric that utilizes simple back processed to make, and this fabric have higher slippage resistance, good flexibility and high DIMENSIONAL STABILITY.
Below the present invention is described in detail:
Air bag fabric of the present invention, its warp-wise surface static coefficient of friction is more than 0.4, and broadwise surface static coefficient of friction is more than 0.7.If surface static coefficient of friction warp-wise＜0.4, broadwise＜0.7, the slippage resistance will be lower, and it is bigger to make the slippage of position when air bag is opened; Consider the flexibility of fabric, the preferred warp-wise 0.4～0.5 of surface static coefficient of friction, broadwise 0.7～0.8.Here said surface static coefficient of friction is according to the test determines of the static state of ASTM D1894-06 plastic sheeting and thin plate and static friction coefficient.
The slippage resistance warp-wise of this fabric is 400～900N, and broadwise is 400～900N.If the slippage resistance is low excessively, the suture site easy glide of air bag.If the slippage resistance is too high, the flexibility of safe air bag fabric will be affected, and then can have influence on the problem of air bag module miniaturization.The wherein preferred 500～800N of warp-wise slippage resistance, more preferably 600～800N; Preferred 450～the 700N of broadwise slippage resistance, more preferably 500～650N.Here said slippage resistance is measured according to ASTM D 6479 methods.
The firm softness of the warp-wise of this fabric is below 100mm, and the firm softness of broadwise is below 130mm.If the firm softness＞100mm of the warp-wise of fabric, the firm softness＞130mm of broadwise, the feel of fabric is harder, causes the facial scratch of driver and conductor in the airbag-releasing process easily.Under the condition that guarantees other performances of air bag, the softness of fabric is the smaller the better, and is easy to fold.Wherein below the preferred 90mm of the firm softness of warp-wise, below the preferred 120mm of the firm softness of broadwise.Here said firm softness is measured according to JIS L-1096A method (45 ° of cantilever methods), and it is very important physical index of evaluate safety air bag softness.
The dry-hot shrinkage warp-wise of this fabric is below 3.00%, and broadwise is below 3.00%.Be lower than at 3.00% o'clock through the broadwise dry-hot shrinkage, then DIMENSIONAL STABILITY is more excellent.The preferred warp-wise of dry-hot shrinkage is below 2.00%, and broadwise meets following computing formula below 2.00%:
E＝(L
0-L
1)/L
0×100
L
0: the size (cm) before the fabric heat treatment
L
1: the size (cm) before the fabric heat treatment
Here said dry-hot shrinkage is fixed according to JIS L-1042 Fa Measuring, and the dry heat treatment condition is 150 ℃ * 30min.
Air bag fabric of the present invention, the fineness of its synthetic fiber is 100～1000dtex, monofilament fineness is 0.1～10dtex in the synthetic fiber, contains 60～200 monofilament in the long filament of synthetic fiber.If total fineness is low excessively, tensile strength, tearing strength will step-downs, and total fineness is too high, and it is stiffening that fabric face will become; If monofilament fineness is low excessively, the spinning comparison difficulty that will seem, and monofilament fineness is too high, impairs the flexibility of fabric; If the monofilament radical is low excessively, then the venting quality of fabric can be bigger than normal, although the monofilament radical is The more the better, therefore then can increase the difficulty of spinning, also can improve woven difficulty simultaneously.Preferred 300～the 500dtex of the fineness of synthetic fiber, the preferred 2.0～6.0dtex of monofilament fineness, preferred 72～136 of monofilament radical.
Air bag of the present invention does not limit from raw material especially with the fiber of fabric, considers that from the cost aspect preferred polyester fiber or polyamide fiber generally use polyamide fibers such as nylon 66, nylon 6.In addition, if in order to improve the processability of long filament in weaving process or after-processing technology, these fibers can contain various additives, for example antistatic additive, antioxidant, antilubricant, fire retardant, lubricant etc.
Air bag of the present invention can adopt air-jet loom, Rapier looms, water jet looms etc. with weaving of fabric, not particular determination.
Air bag of the present invention is handled at least one time by organic silicon solution earlier after with fabric knitting, concrete grammar is to increase by 1～2 tank and drying machine that is used to hold organic silicon solution before the heat setting machine, make fabric pass through tank and through super-dry, fabric is controlled at 20～60m/min by the speed of tank, preferred 30～45m/min.And then through the HEAT SETTING processed, wherein heat setting temperature is 120～210 ℃, and heat-setting time is 30～90s.Organic silicon solution is handled and can be reached the effect that improves the slippage resistance for 1～2 time, if it is too much by organic silicon solution reprocessing number of times, then can cause excessive organosilicon particle attached on the fabric,, can influence fabric feeling though can obviously improve the slippage resistance.Heat setting temperature is low excessively, the time is too short, and then dimensional stability for fabric is poor, and fabric rerum natura deviation is big, too high, the overlong time of heat setting temperature, and then the fabric tearing strength reduces, and the ductility of fabric reduces.Preferred 160～180 ℃ of its heat setting temperature, heat-setting time selects 30～60s.
The present invention is from the back processed of air bag with fabric, improves the slippage resistance of fabric self, improves the slippage resistance of making between position and fabric with this.
Air bag of the present invention has higher slippage resistance with fabric, good flexibility, high DIMENSIONAL STABILITY, and method is simple.
The invention will be further described by the following examples.
Method of testing described in this specification and embodiment, the comparative example and standard are as follows:
[static friction coefficient]
Carry out measuring friction coefficient according to the static state of ASTM D 1894-01 plastic sheeting and thin plate and the method for testing of dynamic friction coefficient.Concrete grammar is along fabric warp-wise or broadwise take a sample respectively 10cm * 20cm and 10cm * 6.5cm, and 10cm * 20cm sample is fixed on the flat board with double faced adhesive tape, keeps test surfaces smooth; Again 10cm * 6.5cm sample is fixed on the coaster with double faced adhesive tape, keeps test surfaces smooth equally, and guarantee that two sample test directions are all warp-wise or broadwise.Start tester, dull and stereotyped level at the uniform velocity moves right, and utilizes the printer output test result curve that is connected with tester, according to test result, calculates coefficient of friction mean value.
[slippage resistance]
Testing standard according to ASTM D 6479-02 slippage resistance is tested.Concrete grammar is, on the tension test instrument sample of 5cm * 30cm clipped on the special-purpose device of slippage resistance test, and the chuck spacing of tension test instrument is 20cm, tests with the speed of 200mm/min.
[Density]
According to JIS L-1096 method, fabric is kept flat on the table, number goes out the radical of silk in the 5cm interval, at the radical that is converted into one inch length internal thread.
[softness just]
Testing standard according to the firm softness of JIS L-1096A method (45 ° of cantilever methods) is tested.Concrete grammar is to get the safe air bag fabric sample of 2cm * 15cm, the firm softness of employing inclined plane method test sample.On sample, put the slide plate that has scale, and make the low end of sample concordant with slide plate.During test slide plate is slowly released, up to since the effect of the weight of fabric own and sagging touch the inclined-plane till, can obtain the length that skids off of sample by the distance that slide plate moves.Concordant with slide plate.During test slide plate is slowly released, up to since the effect of the weight of fabric own and sagging touch the inclined-plane till, can obtain the length that skids off of sample by the distance that slide plate moves.
[dry-hot shrinkage]
Testing standard according to JIS L-1042 dry-hot shrinkage is tested.Concrete grammar is that specimen size is 30cm * 30cm, marks the line L of 20cm on each sample with straight line
0, through each 3 of broadwises, be evenly distributed, carry out 150 ℃ * 30min heat treatment, (distance L of graticule is measured in damping 〉=24hr) again for 20 ± 2 ℃ of standard conditions temperature, relative humidity 65 ± 2% after the damping
1According to formula E=(L
0-L
1)/L
0* 100, calculate dry-hot shrinkage.
The specific embodiment
The preparation of organic silicon solution: the organic silicon solvent (antilubricant: NIKOSOLT S-6Z and NIKOSOLT 209) of selecting Zhejiang solar corona chemical company for use, non-volatile content about 21% in the solution, its main component is a silica, with 1.5 parts of organic silicon solvents and 98.5 parts of water or 3 parts of organic silicon solvents and 97 parts of water, it is 0.3% or 0.6% organic silicon solution that preparation obtains organosilicon particle weight concentration during production and processing.
Embodiment 1
The employing fibre fineness is 470dtex, the monofilament radical is 72f, the cross section is circular nylon 66 long filaments, weave with water jet looms and to obtain the plain cloth that density is 53/inch, the fabric that makes is handled one time in organosilicon particle weight concentration is 0.3% anionic organic silicon solution (NIKOSOLT 209), and processing speed is 40m/min, carries out 180 ℃ * 36s HEAT SETTING post processing processing again, make the air bag fabric, its rerum natura the results are shown in Table 1.
Embodiment 2
The employing fibre fineness is 470dtex, and the monofilament radical is 72f, and the cross section is circular nylon 66 long filaments, weaves with water jet looms and obtains the plain cloth that density is 53/inch.The fabric that makes is handled one time in organosilicon particle weight concentration is 0.6% anionic organic silicon solution (NIKOSOLT 209), and processing speed is 40m/min, carries out 180 ℃ * 36s of HEAT SETTING post processing processing again.Make the air bag fabric, its rerum natura the results are shown in Table 1.
Embodiment 3
The employing fibre fineness is 470dtex, and the monofilament radical is 72f, and the cross section is circular nylon 66 long filaments, weaves with water jet looms and obtains the plain cloth that density is 53/inch.The fabric that makes is handled one time in organosilicon particle weight concentration is 0.6% cation type organic silicon solution (NIKOSOLT S-6Z), and processing speed is 40m/min, carries out 180 ℃ * 36s of HEAT SETTING post processing processing again.Make the air bag fabric, its rerum natura the results are shown in Table 1.
Embodiment 4
The employing fibre fineness is 470dtex, and the monofilament radical is 72f, and the cross section is circular nylon 66 long filaments, weaves with water jet looms and obtains the plain cloth that density is 53/inch.The fabric that makes is handled two times in organosilicon particle weight concentration is 0.6% cation type organic silicon solution (NIKOSOLT S-6Z), and processing speed is 40m/min, carries out 180 ℃ * 36s of HEAT SETTING post processing processing again.Make the air bag fabric, its rerum natura the results are shown in Table 1.
Comparative example 1
The employing fibre fineness is 470dtex, and the monofilament radical is 72f, and the cross section is circular nylon 66 long filaments, weaves with water jet looms and obtains the plain cloth that density is 53/inch.Safe air bag fabric after weaving is only carried out 180 ℃ * 36s of HEAT SETTING post processing processing.Make the air bag fabric, its rerum natura the results are shown in Table 1.
Comparative example 2
The employing fibre fineness is 470dtex, and the monofilament radical is 72f, and the cross section is circular nylon 66 long filaments, weaves with water jet looms and obtains the plain cloth that density is 55/inch.Plain cloth after weaving is only carried out 180 ℃ * 36s of HEAT SETTING post processing processing.Make the air bag fabric, its rerum natura the results are shown in Table 1.
Table 1
From table 1, can find, gas cell fabric after weaving is that 0.6% organic silicon solution is handled one time by weight concentration, the slippage resistance of carrying out the safe air bag fabric of HEAT SETTING post processing processing again is higher than only carries out the gas cell fabric that HEAT SETTING is handled, can make gas cell fabric its slippage of making the position in opening procedure very little, under the prerequisite that keeps low venting quality, possess simultaneously better pliability is arranged, higher DIMENSIONAL STABILITY.
Claims (5)
1. air bag fabric, it is characterized in that: the warp-wise surface static coefficient of friction of this fabric is more than 0.4, and broadwise surface static coefficient of friction is more than 0.7.
2. air bag fabric according to claim 1 is characterized in that: the warp-wise surface static coefficient of friction of this fabric is between 0.4～0.5, and broadwise surface static coefficient of friction is between 0.7～0.8.
3. air bag fabric according to claim 1 and 2 is characterized in that: the warp-wise slippage resistance of this fabric is 400～900N, and broadwise slippage resistance is 400～900N.
4. air bag fabric according to claim 1 and 2 is characterized in that: the firm softness of the warp-wise of this fabric is below the 100mm, and the firm softness of broadwise is below the 130mm.
5. air bag fabric according to claim 1 and 2 is characterized in that: the warp-wise dry-hot shrinkage of this fabric is below 3.00%, and the broadwise dry-hot shrinkage is below 3.00%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910136865A CN101864634A (en) | 2009-04-15 | 2009-04-15 | Fabric for airbags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910136865A CN101864634A (en) | 2009-04-15 | 2009-04-15 | Fabric for airbags |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101864634A true CN101864634A (en) | 2010-10-20 |
Family
ID=42956550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910136865A Pending CN101864634A (en) | 2009-04-15 | 2009-04-15 | Fabric for airbags |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101864634A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480696A (en) * | 2014-12-01 | 2015-04-01 | 江苏金太阳纺织科技有限公司 | Anti-sliding finishing agent for regenerated cellulose fiber fabric, working fluid and anti-sliding finishing process |
| CN105177796A (en) * | 2015-10-20 | 2015-12-23 | 东华大学 | Environment-friendly safety airbag fabric and preparation method thereof |
| CN105239293A (en) * | 2014-07-08 | 2016-01-13 | 沙洋武汉富泰革基布有限公司 | Method for increasing seam slippage strength of leather base cloth |
| CN106592209A (en) * | 2016-11-14 | 2017-04-26 | 可隆（南京）特种纺织品有限公司 | Air bag plus material and preparation method thereof |
| CN110997995A (en) * | 2017-08-21 | 2020-04-10 | 东洋纺株式会社 | Fabric for airbag, coated fabric for airbag, and airbag using same |
| CN112746337A (en) * | 2020-12-22 | 2021-05-04 | 神马博列麦（平顶山）气囊丝制造有限公司 | Nylon 66 high-air-tightness air bag yarn and preparation method thereof |
-
2009
- 2009-04-15 CN CN200910136865A patent/CN101864634A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239293A (en) * | 2014-07-08 | 2016-01-13 | 沙洋武汉富泰革基布有限公司 | Method for increasing seam slippage strength of leather base cloth |
| CN104480696A (en) * | 2014-12-01 | 2015-04-01 | 江苏金太阳纺织科技有限公司 | Anti-sliding finishing agent for regenerated cellulose fiber fabric, working fluid and anti-sliding finishing process |
| CN105177796A (en) * | 2015-10-20 | 2015-12-23 | 东华大学 | Environment-friendly safety airbag fabric and preparation method thereof |
| CN106592209A (en) * | 2016-11-14 | 2017-04-26 | 可隆（南京）特种纺织品有限公司 | Air bag plus material and preparation method thereof |
| CN110997995A (en) * | 2017-08-21 | 2020-04-10 | 东洋纺株式会社 | Fabric for airbag, coated fabric for airbag, and airbag using same |
| US11130467B2 (en) | 2017-08-21 | 2021-09-28 | Toyobo Co., Ltd. | Fabric for airbag, coated fabric for airbag, and airbag using same |
| CN110997995B (en) * | 2017-08-21 | 2022-05-31 | 东洋纺株式会社 | Fabric for airbag, coated fabric for airbag, and airbag using same |
| CN112746337A (en) * | 2020-12-22 | 2021-05-04 | 神马博列麦（平顶山）气囊丝制造有限公司 | Nylon 66 high-air-tightness air bag yarn and preparation method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101020 |