CN105473774A - Fabric for airbag - Google Patents
Fabric for airbag Download PDFInfo
- Publication number
- CN105473774A CN105473774A CN201480046138.3A CN201480046138A CN105473774A CN 105473774 A CN105473774 A CN 105473774A CN 201480046138 A CN201480046138 A CN 201480046138A CN 105473774 A CN105473774 A CN 105473774A
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- China
- Prior art keywords
- base cloth
- weight
- fabric
- cloth according
- uncoated airbags
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-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/02—Inflatable articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/235—Inflatable members characterised by their material
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/235—Inflatable members characterised by their material
- B60R2021/23504—Inflatable members characterised by their material characterised by material
- B60R2021/23509—Fabric
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Woven Fabrics (AREA)
- Air Bags (AREA)
Abstract
The purpose of the present invention is to provide an airbag base fabric for which mesh opening at the boundary between expanded sections and unexpanded sections at high temperature when the fabric is configured as a bag for an airbag is limited even as flexibility at normal temperature is improved, particularly as tear strength at high density is improved. This airbag base fabric is a non-coated airbag base fabric characterized in that the cover factor represented by the expression below is 2250 to 2500 and the bulk density is 700 kg/m3 to 900 kg/m3. ((warp yarn density)+(weft yarn density))[square root of](fiber fineness).
Description
Technical field
The present invention relates to textile for air sacs.More specifically, the textile for air sacs that air-tightness under high temperature is high is related to.
Background technology
The contact of accessory and human body in the impact of shock when air bag is for alleviating accident, car.Air bag significantly launches rapidly, blocks human body and can not break, and needs buffering effect, therefore needs air-tightness.Specifically, the air-tightness of air-tightness to bag entirety of the boundary member in bulge and unexpansive portion impacts, especially, and the air-tightness particular importance that there is the preceding sections under the environment of high-temperature gas when inflator runs.In following patent document 1 and the air-tightness that Patent Document 2 discloses raising base cloth.Patent document 1 is for suppressing the method for the movement of yarn by improving interfibrous mutual restraining force.But, do not record opening during high temperature in the document.In addition, when only improving interfibrous restraining force, when becoming high-density fabric, exceedingly inhibit the movement of fiber, tearing strength reduces sometimes.Patent Document 2 discloses, after using the multifilament be made up of flat single thread to weave, carry out shrink process with the warp tension of below 0.08cN/dtex.But flat yams alignd, the fabric construction arranged alignedly along asymmetric shaft direction reduces sometimes tears physical property etc., does not record about opening during high temperature.
Prior art document
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2012-52280 publication
Patent document 2: Japanese Unexamined Patent Publication 2005-105445 publication
Summary of the invention
the problem that invention will solve
The object of the invention is to, opening when being provided in the high temperature of the boundary member in bulge when making air bag bag and unexpansive portion be suppressed and normal temperature time the flexibility of fabric improve, the improved fabric of tearing strength particularly under high density.
for the scheme of dealing with problems
The present inventor finds, bulk density when making fabric by adjustment, and for high-density fabric, when can obtain the high temperature of the bulge of bag and the boundary member in unexpansive portion, opening is suppressed and the high fabric of tearing strength, thus completes invention.
That is, the present invention is as follows.
(1) a uncoated airbags base cloth, is characterized in that, the cover factor represented by following formula is more than 2250 and less than 2500, and bulk density is 700kg/m
3above and 900kg/m
3below.
(2) the uncoated airbags base cloth according to above-mentioned 1, is characterized in that, tearing strength is more than 150N and less than 300N.
(3) the uncoated airbags base cloth according to above-mentioned 1 or 2, is characterized in that, exists be more than 0.05 weight ppm relative to yarn weight and less than the alkyl phosphate salt of 3 weight ppm at fiber surface.
(4) the uncoated airbags base cloth according to any one of above-mentioned 1 ~ 3, is characterized in that, exists be more than 1 weight ppm relative to yarn weight and less than the alkyl sulfate of 12 weight ppm at fiber surface.
(5) the uncoated airbags base cloth according to any one of above-mentioned 1 ~ 4, is characterized in that, it uses the sliver that single thread cross sectional shape is circular section to weave.
(6) the uncoated airbags base cloth according to any one of above-mentioned 1 ~ 5, is characterized in that, the dynamic Air permenbility of base cloth is below 400mm/s.
(7) the uncoated airbags base cloth according to any one of above-mentioned 1 ~ 6, is characterized in that, the needle tracking opening amount at 100 DEG C is below 12mm.
(8) the uncoated airbags base cloth according to any one of above-mentioned 1 ~ 7, is characterized in that, is more than 2dtex and the sliver of below 7dtex is formed by single thread fiber number.
(9) the uncoated airbags base cloth according to any one of above-mentioned 1 ~ 8, is characterized in that, the fiber forming base cloth is polyamide 66.
(10) the uncoated airbags base cloth according to any one of above-mentioned 1 ~ 9, is characterized in that, carried out wettability treatment after weaving under the tension force of more than 1N/cm.
(11) uncoated airbags, it is that base cloth according to any one of above-mentioned 1 ~ 10 manufactures.
the effect of invention
Base cloth of the present invention is the high-density fabric with specific bulk density, thus the opening of the boundary member in bulge when making air bag and unexpansive portion is suppressed, realize the high-air-tightness of air bag, and improve as the flexibility of the shortcoming of high-density fabric, tearing strength also improves.Be particularly suitable for the airbag apparatus using high-temperature gas under high-output power.
Detailed description of the invention
Below, the present invention is described in detail.
The Density of base cloth of the present invention is necessary for cover factor and meets more than 2250 and the scope of less than 2500.Cover factor be more than 2300 and less than 2500 time more preferably, most preferably be more than 2350 and less than 2450.When being more than 2250, the opening of bulge when making air bag and the boundary member in unexpansive portion can not become large and damage the air-tightness of normal pressure.When being less than 2500, flexibility can not be damaged.The bulk density of base cloth is necessary for 700kg/m
3above and 900kg/m
3below.For 750kg/m
3above and less than 900kg/m
3time more preferably, be 750kg/m
3above and less than 850kg/m
3time preferred further, most preferably be 780kg/m
3above and 830kg/m
3below.For 700kg/m
3time above, the opening of bulge when to make bag and the boundary member in unexpansive portion can not become large, can not damage the air-tightness of high pressure.In addition, be 900kg/m
3when following, can not damage flexibility, containment also maintains less.Be above-mentioned scope to make cover factor and bulk density, such as can operate as follows: the density of warp thread is set as more than 50/inch, and weft yarn also carries out the setting of equal densities, warp tension when weaving is weave under the tension force of more than 0.3cN/dtex, then carries out shaping process.It is important for carrying out during sizing processing under the condition not making base cloth relax, and tension force is now more than 1N/cm.That is, importantly, adopt for increasing cover factor and increasing bulk density, make the processing conditions of the fabric construction dimensionally plugging mesh.
The dynamic Air permenbility of base cloth of the present invention is preferably below 400mm/s.Be more preferably below 300mm/s, most preferably be below 200mm/s.During for below 400mm/s, flexibility and air-tightness can be taken into account.It should be noted that, the assay method of dynamic Air permenbility illustrates later.
Needle tracking opening at 100 DEG C of base cloth of the present invention is below 12mm.Be preferably below 10mm.For during below 8mm most preferably.As long as just can launch for below 12mm, and significantly can not damage air-tightness when to make bag.It should be noted that, the assay method of needle tracking opening illustrates later.
The preferred tearing strength of base cloth of the present invention is more than 150N and less than 300N.Be more preferably more than 180N, for during more than 200N most preferably.During for more than 150N, be conducive to suppressing mesh dislocation.In addition, during for base cloth less than 300N, the free degree of fiber becomes large, becomes soft Ji Bu, is conducive to containment.Tearing strength is herein the single tongue method specified in ISO13937-2.
Preferably, form the fiber surface of base cloth of the present invention there is more than 0.05 weight ppm and less than the alkyl phosphate salt of 3.0 weight ppm and 1 weight ppm more than and less than the alkyl sulfate of 12 weight ppm.Further preferably there is more than 0.1 weight ppm and less than more than the alkyl phosphate salt of 2.0 weight ppm and 2 weight ppm and less than the alkyl sulfate of 8 weight ppm, most preferably there is more than 0.1 weight ppm and less than more than the alkyl phosphate salt of 1.0 weight ppm and 2 weight ppm and less than the alkyl sulfate of 5 weight ppm.
When alkyl phosphate salt is more than 0.05 weight ppm, interfibrous static friction can not become excessive, is conducive to maintenance and improves tearing strength.In addition, during less than 3.0 weight ppm, bulge when being conducive to not making making bag and the boundary portion opening in unexpansive portion increase.On the other hand, when alkyl sulfate is more than 1 weight ppm, interfibrous static friction can not become excessive, is conducive to maintenance and improves tearing strength.During less than 12 weight ppm, bulge when being conducive to not making making bag and the boundary portion opening in unexpansive portion increase.
Preferably, any one in alkyl phosphate salt and alkyl sulfate exists as mentioned above in appropriate amount.But preferably both all exist, more effective under the amount of less amount.
The carbon number in the alkyl portion of alkylphosphonic is preferably more than 8 and less than 18, can have side chain, and can comprise ethylene oxide chain.As salt, particular certain cancers, calcium salt, tertiary ammonium salt.The carbon number in the alkyl portion of alkyl sulfate is preferably 8 ~ 18, can have side chain, and can comprise ethylene oxide chain.As salt, particular certain cancers, calcium salt.
The adding method of the alkylphosphonic that base cloth of the present invention uses and alkyl sulfate is not particularly limited, and preferably, make it exist only in fiber surface by the method being applied to fiber surface, namely consumption is also effective less.And then, as the method be coated with to fiber surface, can adopt in spinning phase and the method implemented in the warping preparatory stage, usually give this composition together with spinning oil.Spinning oil composition is not particularly limited, such as, comprise in smooth agent as 2 yuan of organic acids and the ester of the ester of 1 yuan of alcohol, 1 yuan of organic acid and polyalcohol and the material containing ethylene oxide block in organic acid, alcohol, when using under aqueous dispersion, it usually can be used as the ester of rilanit special or derivatives thereof and 1 yuan of alcohol or polyalcohol and comprise the alkyl ether of the material of oxirane or expoxy propane, oxirane or expoxy propane.
In addition, as the form of be coated with liquid, can be the form of dispersion liquid in the organic solvents such as hydrocarbon, water or solution, but preferred solvent utilize the liquid of water, economically, also effective in security.It should be noted that, fiber surface refers to the single thread surface of the fiber forming base cloth.
The single thread fiber number of the fiber that base cloth of the present invention uses is preferably more than 2dtex and below 7dtex.Be more preferably more than 3dtex and less than 7dtex, most preferably be more than 3dtex and less than 6dtex.During for more than 2dtex, air-tightness is good, is conducive to suppressing opening when bag launches.During for below 7dtex, be not easily subject to single thread damage man-hour weaving etc. to add, be conducive to obtaining the good Ji Bu of quality.
The single thread cross section that the fiber that base cloth of the present invention uses preferably forms it is circular section.During for circular section, when applying stress to base cloth, apply stress equably, therefore, it is possible to obtain tearing strength, Ji Bu that TENSILE STRENGTH is high.Circular section herein refers to that draw ratio is more than 1.0 and less than 1.1, the definition of the major axis of draw ratio represents the maximum gauge in its cross section, and the definition of minor axis represents minimum diameter.
The fiber raw material that base cloth of the present invention uses is preferably thermoplastic fibre, particularly can optimally use polyester, Nylon66 in fibrous physical property, treatability.
In the manufacture of base cloth of the present invention, preferably carry out wettability treatment after weaving.Wettability treatment is preferably carried out under tension, and tension force is now preferably more than 1N/cm.Be more preferably more than 1.5N/cm, for during more than 2N/cm most preferably.When tension force is more than 1N/cm, the increase of the thickness suppressing the contraction of the base cloth in the hot water by wettability treatment or time dry to cause, dimensionally can be plugged the fabric construction of mesh.Therefore, the air-tightness under high pressure can maintain well.During overtension, sometimes damage uniform shrinkage, the deviation of the fold of base cloth generation sometimes, Density becomes large, is therefore preferably below 4N/cm.Said wettability treatment refers to herein: as the refining processing after weaving or the only impregnation process of water and/or hot water and the process comprised to drying process thereafter, midway can use tentering process.And then the only dry process of the base cloth of the wetting state after weaving to be also contained in the present invention in said wettability treatment.In addition, in the operation wetting by base cloth, when not using alkali, can not cause excessively coming off of the finish of scrim surfaces, be suitable.
Embodiment
Then, utilize embodiment and comparative example to further describe the present invention, but the present invention is not limited to these embodiments.Various assay method in the present invention and evaluation method are as described below.
(1) about weavability, the LWT710 using automatic loom Co., Ltd. of Toyota to manufacture, carries out test weaving, according to following benchmark evaluation with 2.3m width, loom rotating speed 600rpm or 500rpm.
Shutdown is more than 5 times/day: ×
Shutdown is 3 ~ 4 times/day: △
Shut down less than 2 times/day: zero
(2) hardness of base cloth measures according to ASTM-D4032.
(3) tearing strength of base cloth measures according to ISO13937-2.
(4) the FX3350 Air permenbility testing machine that the dynamic Air permenbility of base cloth uses TEXTEST company to manufacture according to ASTM-D6476 measures, and makes that measuring head is 400cc, surge pressure is 95 ~ 105kPa, obtains Air permenbility during 50kPa.
(5) about the bulk density of Ji Bu, 10cm is measured
2base cloth weight and thickness (ISO-5084 test pressure 1kPa), calculated by its weight and volume.
(6) about the needle tracking opening amount of room temperature, cut out the cloth 2 of vertical 38cm × horizontal 15cm from sample fabric, overlap toward each other, remain the part of 1cm from the end on long limit, utilize the sewing thread formed by the twisted yarn of 1350dtex to sew up with the lock stitch of 50 pins/dm, are tied a knot in line two ends.The stitching of its warp-wise by fabric aligning each other and broadwise aligning is each other made sample.Then, the Opening length of the needle tracking when TENSILON that utilizes A & D company to manufacture applies the load of 1500N with the speed of 100mm/ minute is measured with ruler.
(7) about the needle tracking opening amount at 100 DEG C, sample is made in the same manner as the needle tracking opening quantitative determination of room temperature, keep in the Special constant temperature groove being set as 100 DEG C after 1 minute, measure needle tracking Opening length when applying the load of 1500N in the same manner as above-mentioned (5) with ruler.
(8) about resid amount, gather base cloth 15g, using thiacyclohexane as solvent, carry out surname extraction.Then make extracted solvothermal volatilization, measure its residue weight with precision balance, obtain level of residue.The value that this weight obtains divided by sample weight is as resid amount.
(9) adhesion amount of the alkyl phosphate salt of fiber surface is obtained by phosphorus concentration by ICP.
(10) adhesion amount of the alkyl sulfate of fiber surface is obtained by the amount of the chromatography of ions by sulfate radical.
(11) about outward appearance, visual judgement, through the Ji Bu of finishing, by not having the situation of special problem to be denoted as zero, records its phenomenon when outward appearance notes abnormalities.
(12) synthetic determination is using needle tracking opening amount as main body, also considers that flexibility (hardness) and air-tightness (dynamic Air permenbility) judge, by being extremely well denoted as zero, be well denoted as △, be badly denoted as ×.
[embodiment 1]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight the spinning oil comprising alkyl (C12 ~ 16) phosphate amine salt 0.3 % by weight and alkyl (C12 ~ 16) sodium sulfate salt 4 % by weight in the spinning oil of ester system smooth agent 60 % by weight and non-ionic surface active agent 40 % by weight, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 4.9 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 470dtex, single thread number 136.Raw yarn intensity is 8.6cN/dtex, and elongation at break is 20.0%.Use this raw yarn, under the condition of not starching, utilize the LWT710 that automatic loom Co., Ltd. of Toyota manufactures, carry out plain weave weave with warp thread setting density 51/inch, weft yarn setting density 52/inch, volume width 230cm, warp tension 0.32cN/dtex, loom rotating speed 600rpm.Two selvedge parts use 2, the nylon66 fiber monofilament of 33dtex as leno yarn respectively.In addition, as plaiting, inweave 8, the nylon66 fiber monofilament of 33dtex in the inner side of leno yarn in the mode of plain weave, obtain the stock roll of width 2m.Then, in the hot bath of 80 DEG C, under the tension force of 400N, carry out the process of 180 seconds, the drying utilizing heating drum to carry out at 110 DEG C 40 seconds, obtain the fabric that target fabric density is equal 55/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.1 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 1.
[embodiment 2]
The nylon 66 fiber using embodiment 1 to record, is set to 0.26cN/dtex by warp tension, in addition, operates similarly to Example 1, obtain stock roll.To the processing that it carries out similarly to Example 1.Obtain target fabric.Measure the resid amount of this fabric, result is 0.1 % by weight relative to base cloth weight.Various characteristic measurement and evaluation are carried out for obtained Ji Bu, their result and weavability evaluation are recorded in table 1.
[embodiment 3]
The nylon 66 fiber using embodiment 1 to record, is set to 0.35cN/dtex by warp tension, in addition, operates similarly to Example 1, obtain stock roll.To the processing that it carries out similarly to Example 1.Obtain target fabric.Measure the resid amount of this fabric, result is 0.11 % by weight relative to base cloth weight.Various characteristic measurement and evaluation are carried out for obtained Ji Bu, their result and weavability evaluation are recorded in table 1.
[embodiment 4]
Use the nylon 66 fiber recorded in embodiment 1, carry out plain weave weave with warp thread setting density 53/inch, weft yarn setting density 53/inch, volume width 230cm, warp tension 0.32cN/dtex, loom rotating speed 500rpm.Two selvedge parts are set to similarly to Example 1, obtain stock roll.Then in the hot bath of 80 DEG C, under the tension force of 400N, carry out the process of 180 seconds, the drying utilizing heating drum to carry out at 110 DEG C 40 seconds, obtain the fabric that target fabric density is equal 57/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.12 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 1.
[embodiment 5]
Use the nylon 66 fiber recorded in embodiment 1, carry out plain weave weave with warp thread setting density 49/inch, weft yarn setting density 50/inch, volume width 230cm, warp tension 0.32cN/dtex, loom rotating speed 600rpm.Two selvedge parts are set to similarly to Example 1, obtain stock roll.Then in the hot bath of 80 DEG C, under the tension force of 400N, carry out the process of 180 seconds, the drying utilizing heating drum to carry out at 110 DEG C 40 seconds, obtain the fabric that target fabric density is equal 53/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.09 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 1.
[embodiment 6]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight the spinning oil comprising alkyl (C12 ~ 16) phosphate amine salt 0.3 % by weight and alkyl (C12 ~ 16) sodium sulfate salt 4 % by weight, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 4.7 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 470dtex, single thread number 216.Raw yarn intensity is 8.7cN/dtex, and elongation at break is 19.5%.Use this raw yarn to carry out weaving similarly to Example 1, result residual oil content is 0.1 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 1.
[embodiment 7]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight the spinning oil comprising alkyl (C12 ~ 16) phosphate amine salt 0.3 % by weight and alkyl (C12 ~ 16) sodium sulfate salt 4 % by weight, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 4.8 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 470dtex, single thread number 72.Raw yarn intensity is 8.6cN/dtex, and elongation at break is 20.2%.Use this raw yarn to carry out weaving similarly to Example 1, result residual oil content is 0.11 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 1.
[embodiment 8]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight the spinning oil comprising alkyl (C12 ~ 16) phosphate amine salt 3 % by weight and alkyl (C12 ~ 16) sodium sulfate salt 4 % by weight, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 4.9 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 470dtex, single thread number 136.Raw yarn intensity is 8.5cN/dtex, and elongation at break is 21.0%.Use this raw yarn to implement weaving similarly to Example 1, result residual oil content is 0.11 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 1.
[embodiment 9]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight the spinning oil comprising alkyl (C12 ~ 16) phosphate amine salt 0.05 % by weight and alkyl (C12 ~ 16) sodium sulfate salt 4 % by weight, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 4.8 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 470dtex, single thread number 136.Raw yarn intensity is 8.6cN/dtex, and elongation at break is 20.5%.This raw yarn is used to carry out weaving similarly to Example 1.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 1.
[embodiment 10]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight the spinning oil comprising alkyl (C12 ~ 16) phosphate amine salt 0.3 % by weight and alkyl (C12 ~ 16) sodium sulfate salt 10 % by weight, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 4.8 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 470dtex, single thread number 136.Raw yarn intensity is 8.6cN/dtex, and elongation at break is 20%.Use this raw yarn to implement weaving similarly to Example 1, result residual oil content is 0.12 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 1.
[embodiment 11]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight the spinning oil comprising alkyl (C12 ~ 16) phosphate amine salt 0.3 % by weight and alkyl (C12 ~ 16) sodium sulfate salt 2 % by weight, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 4.8 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 470dtex, single thread number 136.Raw yarn intensity is 8.7cN/dtex, and elongation at break is 20.5%.Use this raw yarn to implement weaving similarly to Example 1, result residual oil content is 0.08 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 1.
[embodiment 12]
Pet resin is carried out melt spinning at 290 DEG C, cool while give relative to yarn weight be 0.8 % by weight the spinning oil comprising alkyl (C12 ~ 16) phosphate amine salt 0.3 % by weight and alkyl (C12 ~ 16) sodium sulfate salt 1 % by weight, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 6.0 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 550dtex, single thread number 96.Raw yarn intensity is 7.0cN/dtex, and elongation at break is 20%.Use this raw yarn to implement weaving similarly to Example 1, result residual oil content is 0.08 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 1.
[table 1]
[embodiment 13]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight not containing alkyl (C12 ~ 16) phosphate amine salt only containing the spinning oil of alkyl (C12 ~ 16) sodium sulfate salt 4 % by weight, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 4.9 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 470dtex, single thread number 136.Raw yarn intensity is 8.6cN/dtex, and elongation at break is 20.0%.Use this raw yarn to carry out weaving similarly to Example 1, obtain the fabric that target fabric density is equal 55/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.1 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 2.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 2.
[embodiment 14]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight comprise alkyl (C12 ~ 16) phosphate amine salt 0.3 % by weight and not containing the spinning oil of alkyl (C12 ~ 16) sodium sulfate salt, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 4.9 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 470dtex, single thread number 136.Raw yarn intensity is 8.6cN/dtex, and elongation at break is 20.2%.Use this raw yarn to carry out weaving similarly to Example 1, obtain the fabric that target fabric density is equal 55/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.1 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 1.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 2.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 2.
[embodiment 15]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight not containing the spinning oil of alkyl (C12 ~ 16) phosphate amine salt and alkyl (C12 ~ 16) sodium sulfate salt, in addition, carry out spinning by method similarly to Example 1, obtain the raw yarn of fiber number 470dtex, single thread number 136.Raw yarn intensity is 8.6cN/dtex, and elongation at break is 21.0%.Use this raw yarn to carry out weaving similarly to Example 1, obtain the fabric that target fabric density is equal 55/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.11 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 2.In addition, weavability evaluation when weaving is also recorded in table 2.
[embodiment 16]
Use the sliver of embodiment 1, carry out weaving similarly to Example 1, obtain Ji Bu.Be immersed in after in the NaOH 7.4g/L aqueous solution of 60 DEG C, by after 30 seconds in the steam groove of 80 DEG C, implement the water cleaning of 90 DEG C × 1 minute, after utilizing the warm-up mill of 100 DEG C to carry out drying in 70 seconds, batch, obtain the fabric that Density is equal 55/inch of longitude and latitude.The resid amount of this fabric is 0.01% relative to base cloth weight.For obtained Ji Bu, evaluate, their result is recorded in table 2.In addition, weavability evaluation when weaving is also recorded in table 2.
[embodiment 17]
Use the sliver of embodiment 1, carry out weaving similarly to Example 1, obtain Ji Bu.It is carried out in the hot bath of 80 DEG C under the tension force of 200N the process of 180 seconds, the drying utilizing heating drum to carry out at 110 DEG C 40 seconds, obtain the fabric that target fabric density is equal 55/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.11 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 2.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 2.
[embodiment 18]
Use the sliver of embodiment 1, carry out weaving similarly to Example 1, obtain Ji Bu.It is carried out in the hot bath of 80 DEG C under the tension force of 800N the process of 180 seconds, the drying utilizing heating drum to carry out at 110 DEG C 40 seconds, obtain the fabric that target fabric density is equal 55/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.10 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 2.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 2.
[comparative example 1]
Polyamide 66 resin is carried out melt spinning at 300 DEG C, cool while give relative to yarn weight be 0.8 % by weight the spinning oil comprising alkyl (C12 ~ 16) phosphate amine salt 0.3 % by weight and alkyl (C12 ~ 16) sodium sulfate salt 4 % by weight, then after utilizing the hot-stretch roller of 200 DEG C to be stretched to 4.9 times, utilize compressed air to apply to interweave, thus obtain the raw yarn of fiber number 470dtex, single thread number 136.Raw yarn intensity is 8.6cN/dtex, and elongation at break is 20.0%.Use this raw yarn, under the condition of not starching, utilize the LWT710 that automatic loom Co., Ltd. of Toyota manufactures, carry out plain weave weave with warp thread setting density 49/inch, weft yarn setting density 48/inch, volume width 230cm, warp tension 0.32cN/dtex, loom rotating speed 600rpm.Two selvedge parts use 2, the nylon66 fiber monofilament of 33dtex as leno yarn respectively.In addition, as plaiting, inweave 8, the nylon66 fiber monofilament of 33dtex in the inner side of leno yarn in plain weave mode, obtain stock roll.Then in the hot bath of 80 DEG C, under the tension force of 400N, carry out the process of 180 seconds, the drying utilizing heating drum to carry out at 110 DEG C 40 seconds, obtain the target fabric that Density is equal 51/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.1 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 2.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 2.Cover factor is low, and needle tracking opening is large.
[comparative example 2]
Except warp tension is set to except 0.18cN/dtex, implement similarly to Example 1.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 2.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 2.Bulk density is low, and air permeability is large.
[comparative example 3]
Use sliver similarly to Example 1, implement similarly to Example 1 to weave, then in the hot bath of 80 DEG C, under the tension force of 50N, carry out the process of 180 seconds, the drying utilizing heating drum to carry out at 110 DEG C 40 seconds, obtain the fabric that target fabric density is equal 55/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.08 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 2.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 2.Bulk density is low, and air permeability is large, and high temperature open is also large.
[comparative example 4]
Use sliver similarly to Example 1, implement similarly to Example 1 to weave and hot water wash, then under temperature 150 DEG C, pressure 7MPa, carry out calendering process, obtain the fabric that target fabric density is equal 55/inch of longitude and latitude.Measure the resid amount of this fabric, result is 0.10 % by weight relative to base cloth weight.For obtained Ji Bu, carry out various characteristic measurement and evaluation, their result is recorded in table 2.In addition, above-mentioned weavability evaluation when weaving is also recorded in table 2.Bulk density is obviously higher, and Air permenbility is suppressed, but tearing strength is poor.
[table 2]
From table 1 and table 2, product of the present invention not easily opening, but the easy opening of product outside the scope of the invention.
utilizability in industry
Uncoated airbags base cloth of the present invention is suppressed due to the opening of the boundary member in bulge and unexpansive portion, and flexibility is also excellent, and the value therefore in industry is very big.
Claims (11)
1. a uncoated airbags base cloth, is characterized in that, the cover factor represented by following formula is more than 2250 and less than 2500, and bulk density is 700kg/m
3above and 900kg/m
3below,
2. uncoated airbags base cloth according to claim 1, is characterized in that, tearing strength is more than 150N and less than 300N.
3. uncoated airbags base cloth according to claim 1 and 2, is characterized in that, exists be more than 0.05 weight ppm relative to yarn weight and less than the alkyl phosphate salt of 3 weight ppm at fiber surface.
4. the uncoated airbags base cloth according to any one of claims 1 to 3, is characterized in that, exists be more than 1 weight ppm relative to yarn weight and less than the alkyl sulfate of 12 weight ppm at fiber surface.
5. the uncoated airbags base cloth according to any one of Claims 1 to 4, is characterized in that, it uses the sliver that single thread cross sectional shape is circular section to weave.
6. the uncoated airbags base cloth according to any one of Claims 1 to 5, is characterized in that, the dynamic Air permenbility of base cloth is below 400mm/s.
7. the uncoated airbags base cloth according to any one of claim 1 ~ 6, is characterized in that, the needle tracking opening amount at 100 DEG C is below 12mm.
8. the uncoated airbags base cloth according to any one of claim 1 ~ 7, is characterized in that, is more than 2dtex and the sliver of below 7dtex is formed by single thread fiber number.
9. the uncoated airbags base cloth according to any one of claim 1 ~ 8, is characterized in that, the fiber forming base cloth is polyamide 66.
10. the uncoated airbags base cloth according to any one of claim 1 ~ 9, is characterized in that, carried out wettability treatment after weaving under the tension force of more than 1N/cm.
11. 1 kinds of uncoated airbags, it is that base cloth according to any one of claim 1 ~ 10 manufactures.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2013169592 | 2013-08-19 | ||
| JP2013-169592 | 2013-08-19 | ||
| PCT/JP2014/071650 WO2015025842A1 (en) | 2013-08-19 | 2014-08-19 | Fabric for airbag |
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| CN105473774A true CN105473774A (en) | 2016-04-06 |
| CN105473774B CN105473774B (en) | 2018-06-19 |
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|---|---|
| JP (1) | JP5789068B2 (en) |
| KR (1) | KR101970867B1 (en) |
| CN (1) | CN105473774B (en) |
| WO (1) | WO2015025842A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115349037A (en) * | 2020-03-26 | 2022-11-15 | 旭化成株式会社 | Base cloth for materials and method for producing the same |
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- 2014-08-19 WO PCT/JP2014/071650 patent/WO2015025842A1/en active Application Filing
- 2014-08-19 JP JP2015523334A patent/JP5789068B2/en active Active
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| CN1381366A (en) * | 2001-04-19 | 2002-11-27 | 东洋纺织株式会社 | High-density textile for air bag |
| JP2006016707A (en) * | 2004-06-30 | 2006-01-19 | Toray Ind Inc | Base cloth for air bag, air bag and method for producing the same |
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|---|---|
| CN105473774B (en) | 2018-06-19 |
| JP5789068B2 (en) | 2015-10-07 |
| KR101970867B1 (en) | 2019-04-19 |
| WO2015025842A1 (en) | 2015-02-26 |
| JPWO2015025842A1 (en) | 2017-03-02 |
| KR20160029826A (en) | 2016-03-15 |
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