CN103726168A - Uncoated air bag fabric and production method thereof - Google Patents
Uncoated air bag fabric and production method thereof Download PDFInfo
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- CN103726168A CN103726168A CN201210391767.2A CN201210391767A CN103726168A CN 103726168 A CN103726168 A CN 103726168A CN 201210391767 A CN201210391767 A CN 201210391767A CN 103726168 A CN103726168 A CN 103726168A
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Abstract
The invention discloses uncoated air bag fabric and a production method thereof. The fabric is composed of circular polyester yarn, wherein the fineness of warp yarn and weft yarn of the circular polyester yarn is within 200-500dtex; the warp-wise density of the fabric is 51-58 per inch, and the weft-wise density of the fabric is 54-63 per inch, and the weft-wise density or the warp-wise density is larger than 1 and smaller than 1.1. The uncoated air bag fabric has the advantages of being high in slip resistance, high in tearing strength, simple in process and low in cost.
Description
Technical field
The present invention relates to a kind of Uncoated fabric for airbag and production method thereof.
Background technology
In recent years, along with being on the increase of automobile quantity, people's traffic safety consciousness is also in continuous raising, and air bag becomes driver and crew must obligato safety guard.Thereby referring to when vehicle is subject to clashing into, air bag can fast aeration make it the parts that driver and crew are protected in expansion.As air bag component parts, the most important thing is textile for air sacs; in order effectively to protect driver and crew's safety; the impact that this fabric should have certain tensile strength, tears brute force, slippage resistance is subject to when bearing airbag deployment; and in order to prevent suffocation accident, this fabric also should have certain micro-gas permeability.
As Chinese publication CN101479414 discloses a kind of textile for air sacs and manufacture method thereof, this textile for air sacs by synthetic fibres as organizine and tram and form, but latitudinal density/warp-wise density >=1.10 due to fabric, latitudinal density is too high, cause weaving difficulty, easily cause float, thereby affect fabric appearance and quality.
Although and for example Chinese publication CN101634074 discloses a kind of fabric consisting of flat filament it has lower aeration and good flexibility, its slippage resistance is lower.
Summary of the invention
The object of the present invention is to provide a kind of slippage resistance high, tear powerful high Uncoated fabric for airbag.
Another object of the present invention is to provide the production method of the Uncoated fabric for airbag that a kind of technique is simple, cost is low.
Technical solution of the present invention is as follows: Uncoated fabric for airbag of the present invention, this fabric is by being that the circular spun polyester thread of fiber number between 200～500dtex forms through weft yarn, the warp-wise density of this fabric is 51～58 pieces/inch, latitudinal density is 54～63 pieces/inch, and 1 < latitudinal density/warp-wise density < 1.1.Owing to forming the circular long filament of terylene that the raw material of this fabric is 100%, terylene is compared with nylon 66, and cost reduces greatly.When guaranteeing airbag deployment, the resistance to HI high impact of gas cell fabric to high pressure draught, it is the circular long filament of terylene of 72～136 of 200～500dtex, monofilament radical that filling yarn all adopts fiber number, makes fabric for safety air bag of the present invention.If fiber number is less than 200dtex, monofilament number is less than 72 words, will cause the brute force of the safe air bag fabric that makes decline and easily burnt, and the brute force of fabric will decline, and can not meet the requirement of current safety air bag development; If fiber number is greater than 500dtex, monofilament radical is greater than 136, will cause the hardening of safe air bag fabric feel, be not suitable for making of air bag, the pliability of fabric declines and is difficult to fold, and the grammes per square metre of fabric is strengthened, be difficult to reach lightweight, and also can increase cost.
The warp-wise density of Uncoated fabric for airbag of the present invention is 51～58 pieces/inch, and latitudinal density is 54～63 pieces/inch, and 1 < latitudinal density/warp-wise density < 1.1.If during latitudinal density/warp-wise density < 1, latitudinal density is little, can cause the slippage resistance of fabric and tear powerful on the low sidely, be difficult to reach the effect of protection; If latitudinal density/warp-wise density >=1.1 o'clock, latitudinal density is too high, cause weaving difficulty, easily cause float, thereby affect fabric appearance and quality, and if latitudinal density/warp-wise density >=1.1 o'clock, the permeability of fabric reduces, if excessive its gas permeability of deviation is just too low, the shock loading being subject to during airbag deployment is large, easily injures driver and crew.
Uncoated fabric for airbag of the present invention more than broadwise slippage resistance reaches 420N; if slippage resistance is less than the words of 420N; will cause air bag when opening, to be subject to the effect of high temperature and high pressure gas, cause suture site gas leakage, the buffer protection effect of impact to driver and crew.
Tearing through broadwise of Uncoated fabric for airbag of the present invention is powerful more than 120N.If the tearing brute force through broadwise and be less than 120N of fabric, tearing brute force declines, and air bag is subject to strong impact, and easily explosion cannot be played the effect of protection life, on the contrary threat to life.
The production method of Uncoated fabric for airbag of the present invention, all adopts the circular spun polyester thread of fiber number between 200～500dtex to weave through weft yarn, and rear arrangement processing makes finished product, wherein arranges afterwards processing and comprises concise, HEAT SETTING, Cement Composite Treated by Plasma.Described Cement Composite Treated by Plasma is carried out under normal pressure.Atmospheric plasma is processed the object that has realized suitability for industrialized production, meets energy-saving and emission-reduction, ecological spinning requirement; The feature of perspective, advanced design, production technology scientific rationality and the remarkable economic and social benefits of possessing skills.
In rear arrangement process, concise temperature is 20～80 ℃, and heat setting temperature is 160～200 ℃, and the time is 30～90s.If concise temperature is lower than 20 ℃, the softness of fabric does not reach requirement; If concise temperature is higher than 80 ℃, the brute force of fabric declines.If heat setting temperature is lower than 160 ℃, time lower than 30s, the poor dimensional stability of fabric, fabric physical property deviation are large; If heat setting temperature is higher than 200 ℃, time higher than 90s, tearing of fabric powerfully reduces, the ductility of fabric reduces.
Uncoated fabric for airbag plasma processing method of the present invention, its electric discharge general power is 30～80kW, the processing time is 3～25s.If the electric discharge general power of plasma is less than 30kW, Cement Composite Treated by Plasma does not have the effect that improves fabric physical property; If the electric discharge general power of plasma is greater than 80kW, do not reach energy-conservation object.If the processing time is less than 3s, Cement Composite Treated by Plasma does not have the effect that improves fabric physical property; If the processing time is longer than 25s, can cause energy waste.
Textile for air sacs of the present invention has high slippage resistance, height and tears brute force, production technology is simple, cost is low feature.
The specific embodiment
By following examples, the present invention is described in further detail, the physical property in embodiment is measured by following method.
[through latitudinal density]
According to the testing standard of JIS L-1096 Density, test.Concrete grammar is: remove each 20cm of fabric ends, along fabric width direction, fabric is divided into 5 equal portions, and along the direction of warp and weft cross spider of crossing, use density type analyzer to select suitable test specification, and select measuring unit to be piece/inch, its bottom is placed on sample, and with parallel along the drawn mark line of broadwise, read 5 groups of data and be accurate to 0.1 piece/inch, the mean value of getting 5 groups of data is the warp-wise density of this fabric.Otherwise, density type analyzer is selected to suitable test specification, its bottom is placed on sample, and with parallel along the drawn mark line of warp-wise, read 5 groups of data and be accurate to 0.1 piece/inch, the mean value of getting 5 groups of data is the latitudinal density of this fabric.
[slippage resistance]
According to the testing standard of ASTM D 6479-02 slippage resistance, test.Concrete grammar is: on tension test instrument, the sample of 3 pieces of 5cm * 30cm is clipped to respectively to slippage resistance and test on special-purpose device, the chuck spacing of tension test instrument is 20cm, speed with 200mm/min is tested, and the mean value of getting 3 groups of data is the slippage resistance value of fabric.
[tearing brute force]
According to JIS K-6404, tearing powerful testing standard tests.Concrete grammar is: on tension test instrument, the sample of 3 pieces of 20cm * 7.6cm is clipped to respectively and torn on the special-purpose device of test, the chuck spacing of tension test instrument is 7.5cm, speed with 200mm/min is tested, get 5 maximum crest values, get again 5 minimum trough values, calculate the mean value of these ten data, this is the brute force of tearing of this base cloth, and the significant digits of mean value are 0.1N.
Embodiment 1
Through weft yarn, all adopting total fiber number is that 470dtex, radical are that 72, cross section are circular polyester filament.Above-mentioned long filament is carried out to warping, with water jet looms, be woven into after plain cloth again, through concise temperature, be that 30 ℃, heat setting temperature are after 160 ℃, time are 30s, the atmospheric plasma that is 50kW through overdischarge general power is again processed 5s, makes warp-wise density and be 51 pieces/inch, latitudinal density and be the Uncoated fabric for airbag of 54 pieces/inch.Evaluate the physical property of this fabric, and be shown in Table 1.
Embodiment 2
Through weft yarn, all adopting total fiber number is that 470dtex, radical are that 136, cross section are circular polyester filament.Above-mentioned long filament is carried out to warping, with water jet looms, be woven into after plain cloth again, through concise temperature, be that 40 ℃, heat setting temperature are after 170 ℃, time are 40s, the atmospheric plasma that is 50kW through overdischarge general power is again processed 5s, makes warp-wise density and be 53 pieces/inch, latitudinal density and be the Uncoated fabric for airbag of 58 pieces/inch.Evaluate the physical property of this fabric, and be shown in Table 1.
Embodiment 3
Through weft yarn, all adopting total fiber number is that 350dtex, radical are that 72, cross section are circular polyester filament.Above-mentioned long filament is carried out to warping, with water jet looms, be woven into after plain cloth again, through concise temperature, be that 50 ℃, heat setting temperature are after 180 ℃, time are 50s, the atmospheric plasma that is 50kW through overdischarge general power is again processed 5s, makes warp-wise density and be 58 pieces/inch, latitudinal density and be the Uncoated fabric for airbag of 63 pieces/inch.Evaluate the physical property of this fabric, and be shown in Table 1.
Comparative example 1
Through weft yarn, all adopting total fiber number is that 470dtex, radical are that 72, cross section are circular polyester filament.Above-mentioned long filament is carried out to warping, and making warp-wise density and be 51 pieces/inch, latitudinal density is 47 pieces/inch of Uncoated fabric for airbags, evaluates the physical property of this fabric, and is shown in Table 1.
Comparative example 2
Through weft yarn, all adopting total fiber number is that 470dtex, radical are that 136, cross section are circular nylon 66 long filaments.Above-mentioned long filament is carried out to warping, then be woven into after plain cloth with water jet looms, make and through latitudinal density, be the Uncoated fabric for airbag of 53 pieces/inch.Evaluate the physical property of this fabric, and be shown in Table 1.
Comparative example 3
Through weft yarn, all adopting total fiber number is that 350dtex, radical are that 72, cross section are circular nylon 66 long filaments.Above-mentioned long filament is carried out to warping, then be woven into plain cloth with water jet looms, making warp-wise density is 58 pieces/inch, and latitudinal density is the Uncoated fabric for airbag of 64 pieces/inch.Evaluate the physical property of this fabric, and be shown in Table 1.
As can be seen from Table 1 during 1 < latitudinal density/warp-wise density < 1.1, and the fabric after Cement Composite Treated by Plasma with through the fabric of Cement Composite Treated by Plasma, do not compare, warp-wise slippage resistance and tear brute force and all improved 20% left and right.
Claims (7)
1. a Uncoated fabric for airbag, it is characterized in that: this fabric is by being that the circular spun polyester thread of fiber number between 200～500dtex forms through weft yarn, the warp-wise density of this fabric is 51～58 pieces/inch, latitudinal density is 54～63 pieces/inch, and 1 < latitudinal density/warp-wise density < 1.1.
2. Uncoated fabric for airbag according to claim 1, is characterized in that: the monofilament radical of described formation spun polyester thread is 72～136.
3. Uncoated fabric for airbag according to claim 1 and 2, is characterized in that: this fabric more than broadwise slippage resistance reaches 420N.
4. Uncoated fabric for airbag according to claim 1 and 2, is characterized in that: tearing through broadwise of this fabric is powerful more than 120N.
5. the production method of a Uncoated fabric for airbag claimed in claim 1, it is characterized in that: through weft yarn, all adopt the circular spun polyester thread of fiber number between 200～500dtex to weave, rear arrangement processing makes finished product, wherein arranges afterwards processing and comprises concise, HEAT SETTING, Cement Composite Treated by Plasma.
6. the production method of Uncoated fabric for airbag according to claim 5, is characterized in that: described Cement Composite Treated by Plasma is carried out under normal pressure.
7. the production method of Uncoated fabric for airbag according to claim 5, is characterized in that: the electric discharge general power of described plasma is 30～80kW, and the processing time is 3～25s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210391767.2A CN103726168A (en) | 2012-10-16 | 2012-10-16 | Uncoated air bag fabric and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210391767.2A CN103726168A (en) | 2012-10-16 | 2012-10-16 | Uncoated air bag fabric and production method thereof |
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| CN103726168A true CN103726168A (en) | 2014-04-16 |
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| CN201210391767.2A Pending CN103726168A (en) | 2012-10-16 | 2012-10-16 | Uncoated air bag fabric and production method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019017273A1 (en) * | 2017-07-19 | 2019-01-24 | 帝人フロンティア株式会社 | Woven fabric for airbags |
| US11214895B2 (en) | 2015-11-06 | 2022-01-04 | Inv Performance Materials, Llc | Low permeability and high strength fabric and methods of making the same |
| JPWO2022004858A1 (en) * | 2020-07-01 | 2022-01-06 | ||
| 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 |
| US11708045B2 (en) | 2017-09-29 | 2023-07-25 | Inv Performance Materials, Llc | Airbags and methods for production of airbags |
-
2012
- 2012-10-16 CN CN201210391767.2A patent/CN103726168A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11214895B2 (en) | 2015-11-06 | 2022-01-04 | Inv Performance Materials, Llc | Low permeability and high strength fabric and methods of making the same |
| 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 |
| WO2019017273A1 (en) * | 2017-07-19 | 2019-01-24 | 帝人フロンティア株式会社 | Woven fabric for airbags |
| CN110914491A (en) * | 2017-07-19 | 2020-03-24 | 帝人富瑞特株式会社 | Fabric for airbag |
| JPWO2019017273A1 (en) * | 2017-07-19 | 2020-04-30 | 帝人フロンティア株式会社 | Textiles for airbags |
| EP3656902A4 (en) * | 2017-07-19 | 2020-06-10 | Teijin Frontier Co., Ltd. | Woven fabric for airbags |
| JP7021217B2 (en) | 2017-07-19 | 2022-02-16 | 帝人フロンティア株式会社 | Textiles for airbags |
| US11708045B2 (en) | 2017-09-29 | 2023-07-25 | Inv Performance Materials, Llc | Airbags and methods for production of airbags |
| JPWO2022004858A1 (en) * | 2020-07-01 | 2022-01-06 | ||
| WO2022004858A1 (en) * | 2020-07-01 | 2022-01-06 | 旭化成株式会社 | Textile for hollow weave airbag |
| JP7320678B2 (en) | 2020-07-01 | 2023-08-03 | 旭化成株式会社 | Hollow weave fabric for airbags |
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Application publication date: 20140416 |