CN103173908B - A kind of high density uncoated airbags fabric and production method thereof - Google Patents
A kind of high density uncoated airbags fabric and production method thereof Download PDFInfo
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- CN103173908B CN103173908B CN201110436941.6A CN201110436941A CN103173908B CN 103173908 B CN103173908 B CN 103173908B CN 201110436941 A CN201110436941 A CN 201110436941A CN 103173908 B CN103173908 B CN 103173908B
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Abstract
The invention discloses a kind of high density uncoated airbags fabric and production method thereof, the long filament forming this gas cell fabric is the nylon66 fiber long filament containing 0.6 ~ 1.2 % by weight finish, the main component of described finish is oil-soluble grease, bleeding agent and polyethers system high molecular surfactant, and the finish residual quantity of this gas cell fabric is less than 0.03%.By the improvement of precursor finish composition in spinning process and the optimization of aft-loaded airfoil condition, obtain a kind of high slippage resistance, low air permeability, incombustible gas cell fabric.
Description
Technical field
The present invention relates to a kind of safe air bag fabric, be specifically related to a kind of high density uncoated airbags fabric and production method thereof.
Background technology
Along with the automobile that the fast development of auto industry and road travel gets more and more, have higher requirement to auto-safety mechanism, wherein air bag has become requisite configuration in auto-safety mechanism.Air bag is mounted in the safety guard of automobile privileged site; when automobile collide, the action such as rolling time; gas generator in rapid firing safety air-bag, airbag opening in 0.003ms, driver and conductor protected by the cushion pad forming an inflation.But in the process of the inflatable open of air bag, the high temperature born, high pressure, propose very high requirement to the brute force of the suture site of safe air bag fabric and combustibility.
Disclose a kind of base fabric for airbag in Chinese patent CN101506430A, realized air shielding, the heat resistance of safe air bag fabric by coating.But the use of heat-resistant elastomer resin result in the cost increase of safe air bag fabric when the later stage reclaims, and can not realize the miniaturization of air bag module, and by the analysis to embodiment, find that its flammability is more than 50mm/min, there is no self-extinguishment.
Disclose a kind of no-coating air bag fabric and preparation technology thereof in Chinese patent CN1986927A, by carrying out destarch and sizing to fabric blank, purification fabric face, meets the needs of air permeability and anti-flammability, and makes the neat and well spaced unification of fabric.But also refer in this patent specification, every technology of the no-coating air bag fabric that this embodiment provides slightly reduces, analyzing its reason is because the hydraulic performance decline of the fabric that technique causes of oiling and deoil itself.
Summary of the invention
The object of the present invention is to provide the high density uncoated airbags fabric that a kind of slippage resistance is high, good flame resistance, air permeability are low.
Another object of the present invention is to provide that a kind of production cost is low, the production method of production technology simple high density uncoated airbags fabric.
Technical solution of the present invention is as follows: high density uncoated airbags fabric of the present invention, the long filament forming this gas cell fabric is the nylon66 fiber long filament containing 0.6 ~ 1.2 % by weight finish, the main component of above-mentioned finish is oil-soluble grease, bleeding agent and polyethers system high molecular surfactant, and the finish residual quantity of these gas cell fabric final products is less than 0.03%.Adopt the finish of mentioned component more effectively can impel their decomposes in process, significantly can reduce the finish residual quantity of final products, above-mentioned bleeding agent and polyethers system high molecular surfactant be in order to promote solubility grease water jet looms weave with water-washing process in remove better.
High density uncoated airbags fabric of the present invention, the mixing ratio of described oil-soluble grease, bleeding agent, polyethers system high molecular surfactant is 0.6 ~ 0.8:0.1 ~ 0.2:0.1 ~ 0.2.The mixed proportion of these three kinds of compositions can silk and silk or the friction between silk and metal in more effective reduction weaving process, and can save the step oiling or wax in general warping technology, save cost, production technology becomes simple.If bleeding agent, polyethers system high molecular surfactant consumption are too high, oil-soluble grease consumption is too low, the occurrence frequency of filoplume in weaving process will be caused to increase; If bleeding agent, polyethers system high molecular surfactant consumption are too low, oil-soluble grease consumption is too high, will cause weaving, finish can not well be removed in Final finishing process, the finish residual quantity of final products increases.
High density uncoated airbags fabric of the present invention, above-mentioned oil-soluble grease is the mixture of ethyl oleate potassium sulfonate, glycerol trioleate and oleic acid.These mixtures, compared with the polyoxyethylene ether compound generally used, polyoxyethylene alcoholic compound finish, easierly can be removed, and are removed in Final finishing process in the weaving process of water jet looms.
High density uncoated airbags fabric of the present invention, the fiber number of described nylon66 fiber long filament is 300 ~ 500dtex.If the fiber number of nylon66 fiber long filament is less than 300dtex, the brute force of the safe air bag fabric obtained will be caused to decline and easily burnt; If the fiber number of nylon66 fiber long filament is greater than 500dtex, safe air bag fabric feel will be caused hardening, not be suitable for making of air bag, and fiber number be greater than 500dtex be generally used for airbag aeration mouth reinforced textile.
High density uncoated airbags fabric of the present invention, the warp of this gas cell fabric, latitudinal density are 20.0 ~ 26.0/cm.If the warp of this gas cell fabric, latitudinal density are lower than 20.0/cm, the slippage resistance of the safe air bag fabric obtained will be caused to decline and air permeability rising, if the warp of this gas cell fabric, latitudinal density are higher than 26.0/cm, the feel of the safe air bag fabric obtained will be caused hardening, thus affect the miniaturization of air bag module.
High density uncoated airbags fabric of the present invention, the warp-wise slippage resistance of this gas cell fabric is more than 650N, broadwise slippage resistance is more than 600N.Slippage resistance is too small, air bag will being caused when opening to be subject to the effect of high temperature and high pressure gas, causing suture site to leak gas, affect the effect of the buffer protection to driver and conductor.
High density uncoated airbags fabric of the present invention, the flammability of this gas cell fabric is 0mm/min.When testing according to standard FMVSS 302, igniting 15s closes after burning things which may cause a fire disaster, and this fabric can self-extinguish at once, has self-extinguishment, prevents gas cell fabric because the fabric that the effect of high temperature and high pressure gas when opening may cause burns broken hole.
High density uncoated airbags fabric of the present invention, the warp-wise surface static coefficient of friction of this gas cell fabric is more than 0.35, and broadwise surface static coefficient of friction is more than 0.65.The static friction coefficient formed between the silk of this gas cell fabric and silk improves more than 10% than general fabrics, thus improves the slippage resistance of this gas cell fabric.Consider that obtained gas cell fabric has soft feel, static friction coefficient warp-wise is preferably 0.35 ~ 0.50, and broadwise is preferably 0.65 ~ 0.80.
High density uncoated airbags fabric of the present invention, under 500Pa test pressure, the air permeability of this gas cell fabric is 1.0 ~ 2.5L/dm2/min, if the air permeability of this gas cell fabric is lower than 1.0L/dm2/min, will cause air bag after completing the buffering to driver and conductor, can not exit timely and affect the escape of driver and conductor; If the air permeability of this gas cell fabric is higher than 2.5L/dm2/min, the buffering effect of air bag to driver and conductor will be affected.
The production method of high density uncoated airbags fabric of the present invention, adopt carry out weaving containing the nylon66 fiber long filament of 0.6 ~ 1.2 % by weight finish, Final finishing, finally obtained product.Fabrication process condition of the present invention is warping and axle, gait, denting, weave, Final finishing, Final finishing processing comprises again concise, washing, dry, HEAT SETTING, and general fabrication process condition when preparing gas cell fabric be warping, starching (comprise and oil or wax) axle, gait, denting, weave, Final finishing, Final finishing processing comprises again 1 drying, concise, washing, 2 dryings, HEAT SETTING, and such processing step just becomes complexity.But the long filament containing special finish is prepared gas cell fabric by above-mentioned technique by the present invention, improve the composition of finish, thus reduce the incidence of filoplume in weaving process, but also eliminate the operation of starching (comprise and oil or wax), moreover, also shorten the standing time be woven in concise, heat-setting process, eliminate 1 dry operation, technique has become simple, but also reduces production cost.Wherein in Final finishing process, concise temperature is 40 ~ 70 DEG C, washing temperature is 20 ~ 40 DEG C, baking temperature is 80 ~ 120 DEG C, heat setting temperature is 120 ~ 160 DEG C, and the process velocity of Final finishing is 30 ~ 40m/min.The reduction of above-mentioned heat setting temperature, under the condition that ensure that other performances of safe air bag fabric, reduces air permeability.Each condition in above-mentioned Final finishing process also can affect the number of final products finish residual quantity, if the temperature of each condition is too high, will cause the decline of gas cell fabric performance; If the temperature of each condition is too low, finish will be caused well not remove.
Gas cell fabric of the present invention is owing to improving the finish composition in precursor, and by the impact of concise, washing, drying, heat setting temperature in Final finishing process, the finish less residue of obtained final products, and this gas cell fabric has the features such as high slippage resistance, good anti-flammability, low air permeability.
Detailed description of the invention
In further detail the present invention is described by following examples and comparative example.In the present invention, the method for testing of each physical property is as follows.
[slippage resistance]
Testing standard according to ASTM D6479-02 slippage resistance is tested.Concrete grammar is, Tensile Tester clips to slippage resistance the sample of 50 × 300mm and tests on special device, and the jaw separation of Tensile Tester is 200mm, tests with the speed of 200mm/min.
[flammability]
Test according to FMVSS 302 flammability testing standard.Concrete grammar is, the sample of sampling 356 × 100mm, uses Using Horizontal Bridgman Method to test, and keeps the flame height igniting 15s of 38mm, according to 38mm, 165mm, 292mm place on sample tag line carries out calculating and the judgement of burn rate.
[finish residual quantity]
Test according to the extractable matter bioassay standard in ASTM D2257 textiles.Concrete grammar is, utilizes quick oil content abstraction instrument to measure.Finish in fabric sample (weight is A) is dissolved in n-hexane, is dissolved with the hexane solution of finish after the middle heating evaporation of aluminium dish (weight is B), then claims the weight of aluminium dish to be C;
Finish residual quantity (%)=100 × (C-B)/A.
[static friction coefficient]
Method of testing according to the Static and dynamic coefficient of friction of ASTM D 1894-01 plastic sheeting and thin plate carries out measuring friction coefficient.Concrete grammar samples 10cm × 20cm and 10cm × 6.5cm respectively along fabric warp-wise or broadwise, is fixed on flat board by 10cm × 20cm sample, keeps test surfaces smooth; Be fixed on inductor by 10cm × 6.5cm sample by being flexible coupling again, the same test surfaces that keeps is smooth, and ensures that two sample test directions are all warp-wise or broadwise.Start tester, the horizontal uniform motion of dull and stereotyped beginning also reads friction co-efficient value, according to test result, calculates coefficient of friction mean value.
[air permeability]
Carry out static air permeability mensuration according to ISO 9237 fabric air-permeability degree testing standard, concrete grammar is when test pressure is 500Pa, uses 100cm
2standard testing head, the air permeability that test fabric obtains deducts the air permeability of test fabric upper cover one piece of acrylic board simulate fabric cross-wise direction, obtains the static air permeability of this fabric.
Embodiment 1
Employing fiber number is the nylon66 fiber long filament containing 0.8 % by weight finish of 350dtex, the main component of this finish is 70 weight portion oil-soluble greases, 15 weight portion bleeding agents, 15 weight portion polyethers system high molecular surfactants, above-mentioned long filament is weaved by water jet looms, obtained warp-wise density is 23.5/cm, latitudinal density is the plain cloth of 23.1/cm, obtained above-mentioned fabrics is carried out again concise, washing, dry, HEAT SETTING Final finishing is processed, wherein concise temperature is 40 DEG C, washing temperature is 20 DEG C, baking temperature is 100 DEG C, heat setting temperature is 120 DEG C, the process velocity of Final finishing is 40m/min, finally obtained high density uncoated airbags fabric of the present invention, the finish residual quantity recording this gas cell fabric is 0.028%, other physical property of this gas cell fabric are shown in Table 1.
Embodiment 2
Employing fiber number is the nylon66 fiber long filament containing 0.8 % by weight finish of 350dtex, the main component of this finish is 80 weight portion oil-soluble greases, 10 weight portion bleeding agents, 10 weight portion polyethers system high molecular surfactants, above-mentioned long filament is weaved by water jet looms, obtained warp-wise density is 24.8/cm, latitudinal density is the plain cloth of 24.6/cm, obtained above-mentioned fabrics is carried out again concise, washing, dry, HEAT SETTING Final finishing is processed, wherein concise temperature is 65 DEG C, washing temperature is 40 DEG C, baking temperature is 100 DEG C, heat setting temperature is 160 DEG C, the process velocity of Final finishing is 40m/min, finally obtained high density uncoated airbags fabric of the present invention, the finish residual quantity recording this gas cell fabric is 0.021%, other physical property of this gas cell fabric are shown in Table 1.
Embodiment 3
Employing fiber number is the nylon66 fiber long filament containing 1.1 % by weight finishes of 470dtex, the main component of this finish is 70 weight portion oil-soluble greases, 15 weight portion bleeding agents, 15 weight portion polyethers system high molecular surfactants, above-mentioned long filament is weaved by water jet looms, obtained warp-wise density is 20.9/cm, latitudinal density is the plain cloth of 21.0/cm, obtained above-mentioned fabrics is carried out again concise, washing, dry, HEAT SETTING Final finishing is processed, wherein concise temperature is 40 DEG C, washing temperature is 20 DEG C, baking temperature is 120 DEG C, heat setting temperature is 120 DEG C, the process velocity of Final finishing is 40m/min, finally obtained high density uncoated airbags fabric of the present invention, the finish residual quantity recording this gas cell fabric is 0.026%, other physical property of this gas cell fabric are shown in Table 1.
Embodiment 4
Employing fiber number is the nylon66 fiber long filament containing 1.1 % by weight finishes of 470dtex, the main component of this finish is 80 weight portion oil-soluble greases, 10 weight portion bleeding agents, 10 weight portion polyethers system high molecular surfactants, above-mentioned long filament is weaved by water jet looms, obtained warp-wise density is 21.5/cm, latitudinal density is the plain cloth of 21.6/cm, obtained above-mentioned fabrics is carried out again concise, washing, dry, HEAT SETTING Final finishing is processed, wherein concise temperature is 65 DEG C, washing temperature is 40 DEG C, baking temperature is 120 DEG C, heat setting temperature is 160 DEG C, the process velocity of Final finishing is 33m/min, finally obtained high density uncoated airbags fabric of the present invention, the finish residual quantity recording this gas cell fabric is 0.019%, other physical property of this gas cell fabric are shown in Table 1.
Comparative example 1
Employing fiber number is the nylon66 fiber long filament containing 0.8 % by weight finish of 350dtex, the main component of this finish is polyoxyethylene ether compound, polyoxyethylene alcoholic compound, bleeding agent, surfactant, above-mentioned long filament is weaved by water jet looms, obtained warp-wise density is 23.5/cm, latitudinal density is the plain cloth of 23.3/cm, obtained above-mentioned fabrics is carried out again concise, washing, dry, HEAT SETTING Final finishing is processed, wherein concise temperature is 65 DEG C, washing temperature is 40 DEG C, baking temperature is 120 DEG C, heat setting temperature is 180 DEG C, the process velocity of Final finishing is 40m/min, finally obtained uncoated airbags fabric, the finish residual quantity recording this gas cell fabric is 0.082%, other physical property of this gas cell fabric are shown in Table 1.
Comparative example 2
Employing fiber number is the nylon66 fiber long filament containing 1.2 % by weight finishes of 470dtex, the main component of this finish is polyoxyethylene ether compound, polyoxyethylene alcoholic compound, bleeding agent, surfactant, above-mentioned long filament is weaved by water jet looms, obtained warp-wise density is 21.0/cm, latitudinal density is the plain cloth of 21.0/cm, obtained above-mentioned fabrics is carried out again concise, washing, dry, HEAT SETTING Final finishing is processed, wherein concise temperature is 65 DEG C, washing temperature is 40 DEG C, baking temperature is 120 DEG C, heat setting temperature is 180 DEG C, the process velocity of Final finishing is 40m/min, finally obtained uncoated airbags fabric, the finish residual quantity recording this gas cell fabric is 0.078%, other physical property of this gas cell fabric are shown in Table 1.
Table 1
* solubility finish: oil-soluble grease, bleeding agent and polyethers system high molecular surfactant.
* usual finish: polyoxyethylene ether compound, polyoxyethylene alcoholic compound, bleeding agent, surfactant.
Claims (10)
1. a high density uncoated airbags fabric, it is characterized in that: the long filament forming this gas cell fabric is the nylon66 fiber long filament containing 0.6 ~ 1.2 % by weight finish, the main component of described finish is oil-soluble grease, bleeding agent and polyethers system high molecular surfactant, and the finish residual quantity of this gas cell fabric is less than 0.03%.
2. high density uncoated airbags fabric according to claim 1, is characterized in that: the mixing ratio of described oil-soluble grease, bleeding agent, polyethers system high molecular surfactant is 0.6 ~ 0.8:0.1 ~ 0.2:0.1 ~ 0.2.
3. high density uncoated airbags fabric according to claim 1 and 2, is characterized in that: described oil-soluble grease is the mixture of ethyl oleate potassium sulfonate, glycerol trioleate and oleic acid.
4. high density uncoated airbags fabric according to claim 1, is characterized in that: the fiber number of described nylon66 fiber long filament is 300 ~ 500dtex.
5. high density uncoated airbags fabric according to claim 1, is characterized in that: the warp of this gas cell fabric, latitudinal density are 20.0 ~ 26.0/cm.
6. high density uncoated airbags fabric according to claim 1, is characterized in that: the warp-wise slippage resistance of this gas cell fabric is more than 650N, broadwise slippage resistance is more than 600N.
7. high density uncoated airbags fabric according to claim 1, is characterized in that: the flammability of this gas cell fabric is 0mm/min.
8. high density uncoated airbags fabric according to claim 1, is characterized in that: the warp-wise surface static coefficient of friction of this gas cell fabric is more than 0.35, and broadwise surface static coefficient of friction is more than 0.65.
9. high density uncoated airbags fabric according to claim 1, is characterized in that: under 500Pa test pressure, and the air permeability of this gas cell fabric is 1.0 ~ 2.5L/dm
2/ min.
10. the production method of a high density uncoated airbags fabric as claimed in claim 1, comprise warping, weave, Final finishing, it is characterized in that: adopt carry out weaving containing the nylon66 fiber long filament of 0.6 ~ 1.2 % by weight finish, Final finishing, finally obtained product, wherein Final finishing processing comprises concise, washing, dry, HEAT SETTING, wherein concise temperature is 40 ~ 70 DEG C, washing temperature is 20 ~ 40 DEG C, baking temperature is 80 ~ 120 DEG C, heat setting temperature is 120 ~ 160 DEG C, and the process velocity of Final finishing is 30 ~ 40m/min.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3150755B1 (en) * | 2014-05-28 | 2019-01-16 | Asahi Kasei Kabushiki Kaisha | Base fabric for airbag and airbag |
| CN105177796A (en) * | 2015-10-20 | 2015-12-23 | 东华大学 | Environment-friendly safety airbag fabric and preparation method thereof |
| WO2017079499A1 (en) | 2015-11-06 | 2017-05-11 | Invista North America S.Ar.L. | Low permeability and high strength fabric and methods of making the same |
| CN106120000A (en) * | 2016-08-26 | 2016-11-16 | 山东合信科技股份有限公司 | A kind of heat-resist PA66 undrawn yarn and production technology 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 |
| US11634841B2 (en) | 2017-05-02 | 2023-04-25 | Inv Performance Materials, Llc | Low permeability and high strength woven fabric and methods of making the same |
| CA3076011C (en) | 2017-09-29 | 2023-04-18 | Invista Textiles (U.K.) Limited | Airbags and methods for production of airbags |
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| CN1986927A (en) * | 2006-12-22 | 2007-06-27 | 吴江祥盛纺织染整有限公司 | No-coating air bag fabric and its making process |
| CN101033569A (en) * | 2006-03-08 | 2007-09-12 | 东丽纤维研究所（中国）有限公司 | Non-coat fabric for safety gasbag and producing method thereof |
| CN100507111C (en) * | 2003-10-22 | 2009-07-01 | 株式会社晓星 | Low shrinkage polyamide fiber and uncoated fabric for airbags made of the same |
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| JP3334252B2 (en) * | 1993-05-28 | 2002-10-15 | 東レ株式会社 | Base cloth for non-coated airbag |
| JPH082359A (en) * | 1994-06-24 | 1996-01-09 | Teijin Ltd | Highly slip-off resistant woven fabric for air bag |
| JP3421135B2 (en) * | 1994-06-29 | 2003-06-30 | 帝人株式会社 | Method for producing woven fabric for flexible polyester airbag with improved burst strength and flame retardancy |
| JP5425563B2 (en) * | 2009-09-01 | 2014-02-26 | 旭化成せんい株式会社 | Airbag fabrics and airbags |
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| CN100507111C (en) * | 2003-10-22 | 2009-07-01 | 株式会社晓星 | Low shrinkage polyamide fiber and uncoated fabric for airbags made of the same |
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| CN1986927A (en) * | 2006-12-22 | 2007-06-27 | 吴江祥盛纺织染整有限公司 | No-coating air bag fabric and its making process |
| CN102220685A (en) * | 2010-04-14 | 2011-10-19 | 东丽纤维研究所（中国）有限公司 | Uncoated fabric for airbag and production method thereof |
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