CN1131348C - Non-covered textile for airbag, its prodn. process and system - Google Patents
Non-covered textile for airbag, its prodn. process and system Download PDFInfo
- Publication number
- CN1131348C CN1131348C CN 00100391 CN00100391A CN1131348C CN 1131348 C CN1131348 C CN 1131348C CN 00100391 CN00100391 CN 00100391 CN 00100391 A CN00100391 A CN 00100391A CN 1131348 C CN1131348 C CN 1131348C
- Authority
- CN
- China
- Prior art keywords
- textiles
- air bag
- mechanical device
- warp
- textile
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The present invention relates to an uncovered textile for the airbag of a motor vehicle, which has the production processes of braiding a textile, contracting the textile in boiling water and drying and lustering the textile after being processed.
Description
The present invention relates to a kind of air bag, this air bag is a kind of safety device that is used for motor vehicles.Especially, the object of the invention is to provide a kind of non-covered textile that is used for motor vehicle air bag, and this textiles has the gas permeability that can suitably regulate, soft light, growth course economy and can keep required mechanical performance.
At present, along with the raising of the sense of security of users, install air bag with as the quantity of the motor vehicles of safety component in rapid increase.Air bag can protect the user of motor vehicle to comprise that driver and passenger are in case traffic accident takes place as colliding.For example; when bumping; sensor is felt impact; thereby start inflator under high pressure-temperature, to produce gas; and then rapidly the air bag of unfolded is not clashed into the protection user, and this air bag generally is kept at the suitable position of motor vehicles such as steering wheel, instrument board, doorframe recess etc.
Up to now, consider heat resistance, gas permeability, fire line, the anti-flammability of air bag, people are general to adopt the textiles that is coated with synthetic rubber such as chlorobutadiene, chlorine sulfuration paraffin, silicones and similar material to be used for air bag.
Yet the textiles of this covering has many defectives, as has increased weight and cost, has reduced gas permeability, is difficult to recirculation or the like.At present, the textiles that still uses silicone grease to cover, its defective has obtained bigger improvement.Yet this also is nowhere near.
Now, adopted a kind of non-covered textile that mainly is used to air bag.The non-covered textile that is used for air bag requires to have low gas permeability.For reaching this purpose, its production process generally can be divided into following two kinds of methods:
First method be on loom closely braided fabric so that the quantity of the warp thread of per inch and weft yarn is closely knit as much as possible.In this process, the overlap of yarn should combine with anti-gas-leak with mechanical system.Will cause the problem of a productive rate like this:, thereby be difficult to improve braiding speed because the load of loom is overweight.In addition, can make warp tension increase owing to will increase the quantity of per inch yarn, thereby be easy to damage warp thread, and then cause the mechanical performance of the textiles of producing to have reliability problems.
In the second approach, as disclosed in patent JP-A 4-281062, a kind of highdensity textiles is to make like this: use the yarn of hot gas fold (under 160 ℃ dry gas are handled) with 6-15%, and 60-160 ℃ of following water bath processing, dry then and do not have a HEAT SETTING.In fact, second method is more superior than first method, and this is because the mechanical performance problems of the textiles that occurs in method one and problem all not appearance in the second approach of needing the high density braiding.Yet, consider dry run, in patent JP-A 4-281062, only be described as " carrying out down " and also not mentioned for drier type and drying condition with the machinery of routine at 130-170 ℃.
In addition, in first method, obtain a kind of low bubble-tight non-covered textile that is used for air bag that has, such problem can occur: as reducing productive rate, damaging warp thread, i.e. the reliable in mechanical performance of the textiles of above-mentioned production is lower.
In the second approach, when using a kind of drier such as cylinder drier (cylinder dryer) that in general dry run, often uses, crape face drier (shrink surfer dryer), after or a heatsetter (tenter) carries out drying, can find that the textiles flexibility is not enough, and fold occur on its surface.
If textiles lacks flexibility, air bag just can not smoothly launch, thereby causes breaking of stress concentrated part.Perhaps, after sewing and mend, the air bag inner face routed up and continue to use, but the no good cake of its workability, and from the angle consideration of economy, this process need many man-hours.And, consider above-mentioned fold problem, when airbag deployment, stress concentrates on the fold part, because the reduction of mechanical performance such as the decline that pleated portions is divided shear strength may cause breaking of air bag fold part.Consider a more serious problem that Here it is from the user security angle.
The object of the invention is to improve the problems referred to above and the defective of the known textiles that is used for the motor vehicles air bag, as improves mechanical performance, gas permeability and surface folding of textiles or the like.
Another object of the present invention is to provide a kind of uncovered textiles that is used for the motor vehicles air bag, light, the fine and close economy of this textiles softness, gas permeability are low, can be kept for the required mechanical performance of textiles of air bag simultaneously.
By following description and diagram, above-mentioned purpose of the present invention and advantage will become fairly obvious for those skilled in the art.
Description of drawings:
Fig. 1 is the schematic flow sheet of production system involved in the present invention.
Brief summary of the invention:
According to the present invention, the invention provides:
One kind be used for air bag without covered textile, this textile has following performance:
A) ST5% (warp-wise)+ST5% (broadwise)≤1.2g/d.
b)AP≤0.5cc/cm
2/sec.
c)W≤205g/m
2.
D) S (warp-wise)+S (broadwise)≤220mm
E) T≤0.30mm wherein, ST5% is illustrated in the tensile strength of 5% elongation place of textiles divided by along the resulting value of total yarn dawn (g/d) of elongating the direction textiles; AP represents ventilative degree (Frazir method, the pressure differential of 125Pa) (cc/cm
2/ sec); W represents the weight (g/m of textiles
2); S represents rigidity (cantilever method) (mm); And T represents the thickness (mm) of textiles;
2. preparation method who is used for the non-covered textile of air bag may further comprise the steps:
A) Woven textiles;
B) in boiling water, institute's textiles is carried out shrink process; And
C) textiles after handling is carried out drying and glazing.
3. according to above-mentioned 2 method, wherein step (c) is carried out with a kind of suction drum drier (suctiondrum dryer).
4. according to above-mentioned 3 method, wherein step (c) is finished by a multistage step.
5. according to above-mentioned 3 method, wherein step (c) is finished by one two stage step.Phase I (T1-1) is to carry out under 70-170 ℃, and second stage (T2) is to carry out under 90-190 ℃.
6. according to above-mentioned 5 method, wherein T2 is higher than T1;
7. according to above-mentioned 6 method, wherein warp tension is to control between first and second stages of step (c);
8. according to above-mentioned 7 method, wherein warp tension is to control in the process of step (b);
9. according to above-mentioned 8 method, wherein step (a) is finished by the jetting loom;
10. according to above-mentioned 8 method, wherein the textiles of finishing by the jetting loom carries out (b) step does not immediately have drying;
11. the method according to above-mentioned 8, wherein the contraction of the dry heat of used raw yarn is 5-12% (handling 15min down at 180 ℃);
12. the non-covered textile that is used for air bag that obtains by the method for any one among the above-mentioned 2-11.
13. a system for preparing the non-covered textile that is used for air bag comprises:
(a) weaving machinery device;
(b) one is spun the mechanical device that product shrink in boiling water; And
(c) mechanical device of drying and glazing;
14. the system according in above-mentioned 13 wherein comprises a kind of suction drum drier in the mechanical device (c);
15. according to the system in above-mentioned 14, wherein mechanical device (c) is a multistage device;
16. according to the system in above-mentioned 14, wherein mechanical device (c) is one two stage apparatus;
17. according to the system in above-mentioned 16, wherein mechanical device (c) comprises two unit, comprises a warp tension controlling apparatus between Unit first and second;
18. according to the system in above-mentioned 17, wherein mechanical device (b) comprises a warp tension controlling apparatus; And
19. according to the system in above-mentioned 18, wherein mechanical device (b) comprises a jetting loom.
On the one hand, the invention provides a kind of non-covered textile that is used for air bag with following performance:
A) ST5% (warp-wise)+ST5% (broadwise)≤1.2g/d.
b)AP≤0.5cc/cm
2/sec.
c)W≤205g/m
2.
D) S (warp-wise)+S (broadwise)≤220mm
E) T≤0.30mm wherein, ST5% is illustrated in the tensile strength of 5% elongation place of textiles divided by along total yarn dawn (total yarn denier) resulting value (g/d) of elongating the direction textiles; AP represents ventilative degree (Frazir method, the pressure differential of 125Pa) (cc/cm
2/ sec); W represents the weight (g/m of textiles
2); S represents rigidity (cantilever method) (mm); And T represents the thickness (mm) of textiles.
At first, being used for ST5% (the warp-wise)+ST5% (broadwise) of the non-covered textile of air bag should be greater than 1.2g/d.This energy absorption for air bag in the initial period of airbag deployment is very important.That is to say, when the summation of ST5% (warp-wise)+ST5% (broadwise) greater than above-mentioned value, and when air bag is unsuitable for being stored in steering wheel, instrument board, doorframe recess, in the initial period of launching, when pressure works to air bag in the height, will occur stress somewhere and concentrate.Thereby the part that has stress to concentrate just can not fully absorb because a long stress energy that causes, and and then causes breaking of this part and lose protective effect to the user.
The second, when AP surpasses 0.5cc/cm
2During/sec, gas when airbag deployment leaks will become strong, thereby made air bag lose protective effect to the user.
The 3rd, W is no more than 205g/m
2, S (warp-wise) and S (broadwise) sum be not more than these factors that 220mm and T value are not more than 0.30mm, for being provided for having light and having the non-covered textile of air bag of superior laminating property very important.When these values surpass corresponding above-mentioned scope, just be difficult to obtain when folding, to have the non-covered textile of adequate thickness and weight and suitable flexibility.This situation occurring all is that we are undesirable, because today, air bag module trended towards miniaturization, so the volume of air bag also should miniaturization.
This non-covered textile that is used for air bag that can satisfy above-mentioned performance is preferably realized by the present invention following production process and system.According to production process of the present invention and system, this have low-permeable, very soft, the non-covered textile that is used for air bag that has superior energy absorption in the initial period of launching, can obtain by a kind of production process of economy, can satisfy the required mechanical performance of air bag simultaneously again.
On the other hand, the invention provides one and produce a kind of processing method that is used for the non-covered textile of air bag, this method may further comprise the steps:
(a) Woven textiles;
(b) in boiling water, institute's textiles is carried out shrink process; And
(c) textiles after handling is carried out drying and glazing.
In processing procedure of the present invention, (a) each step in (c) can be handled by known method.
Processing procedure of the present invention can be described below: woven after the fabric, at first carried out step (b) and shrink process, carried out the drying and the last optical processing of step (c) then.Above process can be carried out separately or continuously.For example, textiles can be carried out shrink process, handle by the suction drum drier as an independent step then.The mode that can be used as selection is that the textiles of handling in collapse step is proceeded dry and last optical processing.Consider that from economic angle it is preferred handling continuously.
In step (c), owing to compare with above-mentioned other drier, the equipment cost of suction drum drier only is about 1/10 of other drier, therefore is necessary to use this drier.In addition, use the suction drum drier, can obtain the dramatic benefit of textiles described as follows.
At this used suction drum drier is a kind of drying equipment that has drum (as rotary drum), and it can absorb hot gas is put in bulging face with drying textiles from the outside by the outer wall of drum.Like this, the outer wall of drum just should have gas permeability, such as the drum with sieve or gap structure.
In the present invention, step (c) is preferably undertaken by a multistage step, with the gas permeability of improving textiles and stop fold.Stage is good more more at most.Yet from the angle of economy, as equipment and cost, step (c) is preferably finished by two stages.For example, " the two stage steps " of carrying out dry and glazing in identical drier can be divided into two compartments so that the temperature of each compartment can change.Another kind of selectable step is, in system independently by using independent unit to carry out drying and last optical processing.
In two stage steps, the temperature of preferably regulating the suction drum drier makes its temperature in the phase I (T1) transfer to 90-190 ℃ to the temperature (T2) of 70-170 ℃ and second stage, and better situation is, T1 transfers to 90-130 ℃, and T2 transfers to 110-150 ℃.In addition, regulate drying and last optical condition so that T2 is higher than T1.Under the condition of step (c), inventor of the present invention is successfully by a kind of processing procedure that can satisfy the economy of the required mechanical performance of air bag, produces a kind ofly to be used for having of motor vehicle air bag and can to regulate suitable non-covered textile bubble-tight, soft, corrugationless.
When T1 is lower than 70 ℃, almost can't obtain pre-dried effect.And when T1 is higher than 170 ℃,, and then cause the damage of textiles because rapid draing makes textiles generation fold.
When T2 was lower than 90 ℃, the textiles of predrying mistake can not fully be heated.This will influence the long-term thermal stability of textiles.For example, this will be increased in 120 ℃ of gas permeabilities (one of environmental aging test event of automobile product) after the following 400h storage, thereby cause the damage of textiles.
Further, the textiles of producing can be 5-40 ℃ and increase above-mentioned superiority by regulating T2-T1.This promptly, " T2-T1 " but be whether an a kind of textiles of decision can be used as the key factor with non-covered textile that is used for air bag that after aging maintaining a long-term stability property and corrugationless produce.
And, in above-mentioned processing procedure of the present invention, preferably control the tension force between corresponding many drying stages.This promptly, when multi stage drying, the fold of textiles is causing in corresponding dry section.Therefore, in order when textiles shrinks, to make its meridional stress minimum, just must regulate drum outer rim speed so that in the dry section outer rim speed of drum greater than the speed in the adjacent dry section.The meridional stress that preferably automatically the bulging outer rim speed in the consecutive dry section is adjusted to the maintenance textiles is a constant.By the warp-wise power of control textiles, can be under the situation of no any deformation force, shrinkage stress appears in textiles.This is extremely important for the braiding that will obtain having flexibility, and has been found that this control to tension force is with using the suction drum drier all to show great superiority together.
Similarly, be preferably in and control warp-wise tension force in the boiling water in the collapse step, this also is very important for the contraction behavior that improves textiles.
On the other hand, the invention provides the system that a preparation is used to not have the non-covered textile that covers air bag, this system comprises:
(a) a kind of weaving machinery device;
(b) a kind of contract device of the textiles in boiling water; And
(c) a kind of drying and glazing mechanical device.
For example, as shown in Figure 1, system of the present invention comprises a weaving machinery device (not shown), a greige braiding roller 1, boiling water water-bath 2 as the contract device, two unit that are used for dry and glazing mechanical device such as drier 3 and 3, one warp-wise tenslators 4 are as traditional Tension Control, and the roller 5 of a non-covered textile.By weaving machinery device (not shown) the greige textiles is wrapped on the roller 1 and by water-bath 2 and carries out collapse step, then by unit 3 and 3.By these two unit the time, the warp-wise tension force of textiles is by installing 4 controls.At last, the textiles of handling that is used for air bag is wrapped in roller 5.
As mentioned above, drier is the suction drum drier, and preferably to provide a mechanical device to make can be adjusted in automatically the bulging outer rim speed the continuous drying district in be a constant with the warp-wise tension force of maintenance textiles.These 2 all is necessary.Dry and glazing mechanical device is not limited to two stage apparatus as shown in Figure 1, and the stage number can be greater than two.
Another one warp-wise tenslator can be provided in water-bath 2.
Employed weaving machinery device is not limited to a certain device, and it can be a kind of loom such as jetting loom, air-jet loom, sword loom, impelling loom etc.Especially, when considering braiding productive rate, reduction to the infringement of yarn, no warp-wise dimensional requirement, jetting or air-jet loom are best.Further, consider to be easy to remove yarn light (oil) and used warp thread size, the jetting loom is best, and this is because nearly all yarn light can be removed by water in fabrication processes, thereby can simplify flushing process.Then, the undried textiles of preferably being produced by the jetting loom passes through boiling water water-bath 2 immediately.
The yarn that is used for non-covered textile among the present invention is also not only in a certain.Yarn comprises synthetic rubber such as fatty polyamide, particularly nylon 66, nylon 6, nylon 46, nylon 12 and similar substance thereof preferably; Fragrance Silon such as my Mead fiber and with polyesters polyethylene terephthalate for example, polybutyleneterephthalate etc.Other comprise full aromatic polyester class, ultra high molecular polyethylene fiber, PPS fiber, polyether ketone fiber or the like.Wherein, consider that from economic angle polyester fiber (nylon 66, nylon 6, nylon 46) is particularly preferred.
And, for the production stage of accelerating yarn and the process of post-processing step, can contain different additives in the synthetic fiber.These additives comprise counterpoison, heat stabilizer, lubricant, antagonist, intensifier, fire retardant, fire-proofing chemical, or the like.In addition, certain finishing agent can be before drying provides by mode such as toppling over.
Be to satisfy the required mechanical performance of textiles that is used for air bag, yarn should have fracture toughness (preferably 9.0g/d) more than or equal to 8.0g/d and 100 to 840d line density (preferably 210-420d).In addition, the dry heat of used raw yarn is shunk preferably 5-12% (handling 15min down at 180 ℃).
Following examples and comparative example have further described the present invention, but are not limited in the explanation in the described scope.In embodiment and comparative example, physical property is measured according to following method.
ST5％：JIS L1096 6.12 1。Method A (itemize method).5cm is wide, the sample of 20cm pincers distance is elongated with the extensibility of 200mm/min, measures respectively along warp-wise and the broadwise power in 5% elongation place.ST5% is by being calculated divided by the total yarn dawn value along the elongation direction by the above power that records.
Gas permeability: JIS L1096 6.27.1. method A (frazir method).
Weight: JIS L1096 6.4.2.
Rigidity: JIS L1096 6.19.1.Method A (cantilever method)
Thickness: JIS L1096 6.5.(at 240g/cm
2Pressure under).
Per inch yarn quantity: JIS L1096 6.6.
Tensile strength: JIS L1096 6.12.1.Method A (itemize method).
Braiding productive rate: represent with the relative speed that textiles is woven.
The quality scale of textiles: represent with the fold state in processing procedure.
Embodiment 1
Use has the nylon 66 line yarns of fracture toughness, 8.0% dry heat shrinkage and 315 d/72 f of 9.6g/d as warp thread and weft yarn, and flat textiles weaves on the jetting loom.Undried textiles is by by a boiling water water-bath, and then by a suction drum drier being that 110 ℃ and T2 carry out dry and glazing step of one two stage under 130 ℃ the condition at T1.
The physical property of the textiles that is obtained by above process is listed in table 1.
Use has the polyester line yarn of fracture toughness, 8.0% dry heat shrinkage and 350 d/96 f of 9.2g/d as warp thread and weft yarn, and flat textiles weaves on the jetting loom.Undried textiles is by by a boiling water water-bath, and then by a suction drum drier being that 130 ℃ and T2 carry out dry and glazing step of one two stage under 160 ℃ the condition at T1.
The physical property of the textiles that is obtained by above process is listed in table 1.
Use has the nylon 66 line yarns of fracture toughness, 8.0% dry heat shrinkage and 210 d/72 f of 9.6g/d as warp thread and weft yarn, and flat textiles weaves on the jetting loom.Undried textiles is by by a boiling water water-bath, and then by a suction drum drier being that 130 ℃ and T2 carry out dry and glazing step of one two stage under 150 ℃ the condition at T1.
The physical property of the textiles that is obtained by above process is listed in table 1.
Embodiment 4
Use has the nylon 66 line yarns of fracture toughness, 8.0% dry heat shrinkage and 315 d/72 f of 9.6g/d as warp thread and weft yarn, and flat textiles is to weave having on the sword loom of Jacquard mechanical device.Undried textiles is by by a boiling water water-bath, and then by a suction drum drier being that 130 ℃ and T2 carry out dry and glazing step of one two stage under 150 ℃ the condition at T1.
The physical property of the textiles that is obtained by above process is listed in table 1.
The comparative example 1
Use has the nylon 66 line yarns of fracture toughness, 8.0% dry heat shrinkage and 315 d/72 f of 9.6g/d as warp thread and weft yarn, and flat textiles weaves on the jetting loom.Undried textiles is by by a boiling water water-bath, and then by a suction drum drier being that 60 ℃ and T2 carry out dry and glazing step of one two stage under 80 ℃ the condition at T1.
The physical property of the textiles that is obtained by above process is listed in table 2.
The comparative example 2
Use has the nylon 66 line yarns of fracture toughness, 4.0% dry heat shrinkage and 420 d/72 f of 9.6g/d as warp thread and weft yarn, and flat textiles weaves on the jetting loom.Undried textiles is by by a boiling water water-bath, then 180 ℃ down with a hot setter (tenter) along warp-wise 0% place and along broadwise at the fixed width place from feeding in raw material, carry out glazing.
The physical property of the textiles that is obtained by above process is listed in table 2.
The comparative example 3
Use has the nylon 66 line yarns of fracture toughness, 8.0% dry heat shrinkage and 315 d/72 f of 9.6g/d as warp thread and weft yarn, and flat textiles weaves on the jetting loom.Undried textiles is by by a boiling water water-bath, and then by a cylinder drier under 150 ℃ condition, to carry out drying and glazing step.
The physical property of the textiles that is obtained by above process is listed in table 2.
The comparative example 4
Use has the nylon 66 line yarns of fracture toughness, 8.0% dry heat shrinkage and 315 d/72 f of 9.6g/d as warp thread and weft yarn, and flat textiles weaves on the rapier loom by adding a kind of finish.Textiles is by the boiling water water-bath, and then by a shrink surfer drier under 150 ℃ condition, to carry out drying and glazing step.
The physical property of the textiles that is obtained by above process is listed in table 2.
The comparative example 5
Use has the nylon 66 line yarns of fracture toughness, 4.0% dry heat shrinkage and 420 d/72 f of 9.6g/d as warp thread and weft yarn, and flat textiles weaves on the jetting loom.Undried textiles is by by a boiling water water-bath, then 150 ℃ down with a hot setter (tenter) along warp-wise at 3% place from feeding in raw material, carry out drying and glazing step.
And then by a suction drum drier being that 60 ℃ and T2 carry out dry and glazing step of one two stage under 80 ℃ the condition at T1.
The physical property of the textiles that is obtained by above process is listed in table 2.
In table 1 and table 2, the quality scale of textiles is pressed standard and is represented:
A level: be suitable as air bag
B level: can be used as air bag
C level: be not suitable for use in air bag
Table 1
| Performance | Embodiment | |||
| 1 | 2 | 3 | 4 * | |
| ST5% (warp-wise)+ST5% (broadwise) (g/d) | 0.92 | 0.99 | 1.00 | 0.95 |
| AP(cc/cm 2/ s) initial period after 120 ℃, 400 hours | 0.10 0.18 | 0.11 0.20 | 0.11 0.15 | 0.09 0.17 |
| W(g/m 2) | 190 | 200 | 155 | 191 |
| S (warp-wise)+S (broadwise) (mm) | 181 | 196 | 160 | 176 |
| T(mm) | 0.28 | 0.28 | 0.23 | 0.28 |
| The yarn amount of per inch (line/inch) | 63/61 | 63/61.5 | 74/74 | 63/61.5 |
| Tensile strength (N/cm) | 660/660 | 640/645 | 530/549 | 658/655 |
| The braiding productive rate | 100 | 100 | 100 | 95 |
| Quality scale | A | A | A | A |
*Be meant a two performance of knitting textiles.
Table 2
| Performance | The comparative example | ||||
| 1 | 2 | 3 | |||
| ST5% (warp-wise)+ST5% (broadwise) (g/d) | 0.86 | 1.40 | 1.10 | 0.91 | 0.95 |
| AP(cc/cm 2/ s) starting stage after 120 ℃, 400 hours | 0.12 0.65 | 0.55 0.76 | 0.10 0.17 | 0.10 0.19 | 0.65 0.80 |
| W(g/m 2) | 186 | 230 | 188 | 202 | 235 |
| S (warp-wise)+S (broadwise) (mm) | 180 | 233 | 222 | 238 | 204 |
| T(mm) | 0.28 | 0.33 | 0.29 | 0.30 | 0.33 |
| The yarn amount of per inch (line/inch) | 62/60.5 | 55/55 | 63/62 | 66/66 | 55/55 |
| Tensile strength (N/cm) | 650/655 | 770/765 | 660/658 | 690/685 | 770/760 |
| The braiding productive rate | 100 | 98 | 100 | 90 | 98 |
| Quality scale | B | B | C | C | C |
(warp-wise/broadwise)
From table 1 and table 2 as can be seen, although comparative example 1 initial value satisfies the required performance of non-covered textile that is used for air bag, the value after 120 ℃, 400 hours is then too high.This just is not suitable for the non-covered textile as air bag.
In comparative example 2, the absorption of energy is a problem, and gas permeability can not satisfy desired properties.In addition, its weight and compactness are also undesirable.In comparative example 3 and 4, resulting textiles lacks flexibility, and because it is exposed under the high temperature in the single phase step and does not use the suction drum drier, therefore has the problem of fold.
Comparative example 5 gas permeability is too high so that can not be as the non-covered textile of air bag, and is unfavorable.
In sum, according to the present invention, this non-covered textile that is used for air bag, it can suitably regulate air-tightness, there are not quality of textile products such as fold problem, have fabulous flexibility, the textiles with this superior function can obtain by a kind of production process that can satisfy the required mechanical performance of air bag of economy.
Claims (17)
1. non-covered textile that is used for air bag, it has following performance:
A) warp-wise ST5%+ broadwise ST5%≤1.2g/d.
b)AP≤0.5cc/cm
2/sec.
c)W≤205g/m
2.
D) warp-wise S+ broadwise S≤220mm
E) T≤0.30mm wherein, ST5% is illustrated in the tensile strength of 5% stretching place of textiles divided by along the resulting value of total yarn dawn of elongating the direction textiles; AP represents to use the Frazir method, the ventilative degree under the pressure differential of 125Pa; W represents the weight of textiles; S represents the rigidity that records with cantilever method; And T represents the thickness of textiles.
2. method that is used for making the non-covered textile that is used for air bag may further comprise the steps:
(a) Woven textiles;
(b) in boiling water, institute's textiles is carried out shrink process; And
(c) textiles after handling is carried out drying and glazing.
3. according to the method for claim 2, it is characterized in that: step (c) is carried out with a kind of suction drum drier.
4. according to the method for claim 3, it is characterized in that: step (c) is finished by one two stage step, and first section rank T1 carries out under 70-170 ℃, and second stage T2 carries out under 90-190 ℃.
5. according to the method for claim 4, it is characterized in that: T2 is higher than T1.
6. according to the method for claim 5, it is characterized in that: warp tension is to control between first and second stages of step (c).
7. according to the method for claim 6, it is characterized in that: warp tension is to control in the process of step (b).
8. according to the method for claim 7, it is characterized in that: step (a) is finished by the jetting loom.
9. according to the method for claim 7, it is characterized in that: the textiles of being finished by the jetting loom carries out (b) step immediately and does not have drying.
10. according to the method for claim 7, it is characterized in that: it is 5-12% (handling 15min down at 180 ℃) that the dry heat of used raw yarn is shunk.
11. the non-covered textile that is used for air bag by any method preparation among the claim 2-10.
12. a system for preparing the non-covered textile that is used for air bag comprises:
(d) weaving machinery device;
(e) one is carried out the mechanical device that textiles shrinks in boiling water; And
(f) mechanical device of drying and glazing.
13. system according to claim 12 is characterized in that: wherein comprise a kind of suction drum drier in the mechanical device (c).
14. system according to claim 13 is characterized in that: wherein mechanical device (c) is one two stage apparatus.
15. system according to claim 14 is characterized in that: wherein mechanical device (c) comprises two unit, comprises a warp tension controlling apparatus between Unit first and second.
16. system according to claim 15 is characterized in that: wherein mechanical device (b) comprises a warp tension controlling apparatus.
17. system according to claim 16 is characterized in that: wherein mechanical device (b) comprises a jetting loom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00100391 CN1131348C (en) | 2000-01-20 | 2000-01-20 | Non-covered textile for airbag, its prodn. process and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00100391 CN1131348C (en) | 2000-01-20 | 2000-01-20 | Non-covered textile for airbag, its prodn. process and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1306106A CN1306106A (en) | 2001-08-01 |
| CN1131348C true CN1131348C (en) | 2003-12-17 |
Family
ID=4575431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00100391 Expired - Lifetime CN1131348C (en) | 2000-01-20 | 2000-01-20 | Non-covered textile for airbag, its prodn. process and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1131348C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1433672B8 (en) * | 2002-12-26 | 2007-06-06 | Toyo Boseki Kabushiki Kaisha | Hose for introduction and distribution of inflator gas |
| JP4453031B2 (en) * | 2006-06-09 | 2010-04-21 | 東洋紡績株式会社 | Airbag fabric |
| CN101883891B (en) * | 2007-12-07 | 2012-09-05 | 东洋纺织株式会社 | Woven fabric for air bag |
| CN101580996B (en) * | 2008-05-12 | 2013-03-06 | 东丽纤维研究所（中国）有限公司 | Textile fabric for air bag and production method thereof |
| CN102912518A (en) * | 2012-11-22 | 2013-02-06 | 吴江市虹凯纺织有限公司 | Fabric with shape memory function |
| JP6634677B2 (en) * | 2013-08-26 | 2020-01-22 | 東洋紡株式会社 | Coated cloth for airbag |
| DE102018118096A1 (en) * | 2018-07-26 | 2020-01-30 | Andritz Küsters Gmbh | Process for treating a textile web and device for treating a textile web |
-
2000
- 2000-01-20 CN CN 00100391 patent/CN1131348C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1306106A (en) | 2001-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101032792B1 (en) | Polyester fabric for airbag and manufacturing method thereof | |
| US6283507B1 (en) | Lightweight air bag | |
| EP3619078B1 (en) | Low permeability and high strength woven fabric and methods of making the same | |
| KR101575837B1 (en) | Polyester fiber for airbag and preparation method thereof | |
| CN1131348C (en) | Non-covered textile for airbag, its prodn. process and system | |
| CN1301351C (en) | Polyamide fiber for uncoated airbags | |
| CN1609300A (en) | Low shrinkage polyamide fiber and uncoated fabric for airbags made of the same | |
| WO2004031472A1 (en) | Coated base fabric for air bags and air bags | |
| CN100335713C (en) | Coated airbag base fabric and airbag | |
| CN103442951A (en) | Air bag | |
| KR100541510B1 (en) | Uncoated woven fabric for air bags, and its production process and system | |
| US10449922B2 (en) | Air-bag | |
| CN106489000B (en) | Method for preparing polyester fabric for airbag | |
| JP2010203023A (en) | Woven fabric for air bag and air bag | |
| JP4643071B2 (en) | Side airbag | |
| JP2000110049A (en) | Woven fabric for noncoated air bag, its production and apparatus for producing woven fabric for noncoated air bag | |
| EP3034686B1 (en) | Coated woven fabric | |
| JP4019635B2 (en) | Manufacturing method of low ventilation fabric | |
| KR20110109117A (en) | Polyester fabrics for airbag and preparation method thereof | |
| KR101709260B1 (en) | Polyester fiber and preparation method thereof | |
| CN1603174A (en) | Base fabric for air-bag | |
| WO2019088177A1 (en) | Airbag base fabric and airbag | |
| KR100621144B1 (en) | Polyamide yarn, and fabric comprising the same | |
| JP2006161212A (en) | Base fabric for air belt and method for producing the same | |
| KR101984944B1 (en) | A method of preparation fabrics for airbag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20031217 |
|
| CX01 | Expiry of patent term |