CN1735721A - Inflatable two-layer fabrics - Google Patents
Inflatable two-layer fabrics Download PDFInfo
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- CN1735721A CN1735721A CNA2003801083834A CN200380108383A CN1735721A CN 1735721 A CN1735721 A CN 1735721A CN A2003801083834 A CNA2003801083834 A CN A2003801083834A CN 200380108383 A CN200380108383 A CN 200380108383A CN 1735721 A CN1735721 A CN 1735721A
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- layer
- inflatable
- fabric
- join domain
- layer fabric
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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
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- 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
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
- D03D11/02—Fabrics formed with pockets, tubes, loops, folds, tucks or flaps
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- 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
- D03D13/004—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 with weave pattern being non-standard or providing special effects
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
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- 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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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/12—Vehicles
- D10B2505/124—Air bags
Abstract
The present invention relates to an inflatable two-layer fabric, and provides an inflatable two-layer fabric comprising two separated fabric layers, woven at the same time using a weaving machine, and an attachment area attaching said two fabric layers. Since the inflatable fabric of the present invention requires no sewing, it can significantly reduce manufacturing costs. Particularly, since all fabric layers are formed of a plain weave, airbags having a variety of shapes can be manufactured using a jacquard weaving machine. Further, since it has superior weaving property and smoothness, it can be utilized for side curtain airbags and other shock-absorbing products.
Description
Technical field
The present invention relates to inflatable two-layer fabrics, more specifically, relate to the inflatable two-layer fabric that can be used in automotive airbag or life vest.
Background technology
Inflatable fabric can be used for automotive airbag and life vest.This inflatable fabric is particularly useful for side curtain airbag, this air bag on the side glass pane, open with protection passenger's head avoid because and the infringement that causes of glass pane or other structural collision.Because if automobile rolls, then this fabric should be kept inflated condition more than 5 seconds, thereby this fabric is very useful.
Usually, the method that is used to prepare the inflatable fabric of automotive airbag can be divided into: 1) with two-layer fabrics stitching, fusion or bonding method; And 2) use the method for two-layer fabrics, wherein said two-layer by tie point and part is intersected.
Yet first method also needs other stitching, fusion or adhesion process, thereby has caused complicated step, and increased manufacturing cost except that the preparation two-layer fabrics.
For addressing the above problem, second method has been proposed recently.
Inflatable fabric has the tissue layer of two separation, and has tie point between described tissue layer.When each individual layer fast aeration, the fabric that surrounds by tie point forcefully interlocking this is two-layer so that do not have gas to leak.
The method that forms tie point in described inflatable two-layer fabrics is at USP-6, suggestion arranged in 220,309,5,098,125,5,011,183 and 5,603,647.
USP-6,220,309 disclose a kind of two-layer fabrics, and its separated region (separator area) is to be formed by plain weave, and its join domain (attachment area) is formed by the weaving of 2/2 basket; USP-5,098,125 and 5,011,183 discloses a kind of two-layer fabrics, and its separated region is to be formed by plain weave, and its join domain is weaved by 2/2 basket or 3/3 basket, weaving of 1/2 twill or the weaving of 1/3 twill, or 5 comprehensive satin (harness satin) formation; And USP-5,603,647 disclose a kind of two-layer fabrics, and its separated region is formed by plain weave, basket weaving or twill weaving, and its join domain is to be formed by the weaving of 3/3 basket.Herein, separated region is meant the zone in two tissue layer (the upper and lower) two-layer fabrics separated from one another, so this two-layer fabrics can be by inflations such as air.Join domain refers to the zone that two separated fabric layers contact with each other.
Above-mentioned two-layer fabrics mainly utilizes the join domain that is formed by weaving of 3/3 basket or the weaving of 2/2 basket.Yet if two-layer fabrics uses separately, when two separating layer inflations, air can leak out at join domain.
Summary of the invention
Therefore, the present invention seeks to address the above problem, and provide inflatable two-layer fabrics, this two-layer fabrics has dense join domain, air leakage at join domain is minimized, all tissue layer of this fabric are formed by plain weave, so that can use jacquard (jacquard) preparation to have various forms of air bags, and can prepare under the situation of sewing process not having, thereby can significantly reduce production costs and have good braiding and slickness.
Another object of the present invention provides the automotive airbag that comprises described inflatable two-layer fabric.
In order to obtain these purposes, the invention provides a kind of inflatable two-layer fabrics, it comprises two separated fabric layers being made into simultaneously by loom and at the tie point at the join domain center that connects described two tissue layer, and the air of the per unit length of described join domain leaks to less than 0.8L/min/cm (using Antares ' Leak Tester 900Se to measure at 2.5kPa).
Described two-layer fabrics comprise the separated region that constitutes by two separated fabric layers (A, B) and the tie point (C) that described two separated fabric layers are linked together.
(A is to be made of two separated fabric layers that plain weave forms B) to described separated region.Left-hand component of described separated region (A) and right-hand component (B) are to be center mirror image each other with described tie point.Left-hand component (A) and right-hand component (B) by repeating described separated region form described tie point (C) by plain weave.And preferred described two-layer fabrics is coated with synthetic resin.
The present invention also provides a kind of automotive airbag that contains described inflatable two-layer fabric.Preferred described air bag is that side curtain airbag is with the protection passenger.
Description of drawings
Fig. 1 illustrates the repeat patterns (a) of explaining two-layer fabrics and the fabric figure that enlarges pattern (b) thereof, and described two-layer fabrics is made of the plain weave plane of two separation.
Fig. 2 is the cross-sectional view of two-layer fabrics of the present invention.
Figure 3 shows that fabric figure, it is explained in the left-hand component (a) of two-layer fabrics shown in Figure 2 and the repeat patterns of right-hand component (b).
Fig. 4 is the cross-sectional view of the inflatable two-layer fabric of one embodiment of the invention, and this fabric is by charge of air.
Fig. 5 illustrates the method for measuring intracapsular pressure.
The specific embodiment
Below, the present invention is described in more detail.
The present invention relates to inflatable two-layer fabric, for producing product such as the air bag that absorbs vibration, described inflatable two-layer fabric can be simplified preparation technology and reduce this preparation technology's cost, it can make the gas leakage at join domain minimize in the separated region gas replenishment process, and have good braiding character and surface smoothing, and it can be easy to be coated with and applies synthetic resin.
Below, with reference to the accompanying drawings, more detailed description the present invention.Figure 1 shows that fabric figure, it has been explained the repeat patterns (a) of the two-layer fabrics that is made of two plain weave of separating and has enlarged pattern (b), and Fig. 2 is the cross-sectional view of two-layer fabrics of the present invention.
As shown in Figure 2, two-layer fabrics of the present invention comprise the separated region that constitutes by two separated fabric layers (A, B) and the join domain (C) that described two separated fabric layers are linked together.Prepare inflatable two-layer fabric of the present invention and be made into two tissue layer of separating (A of Fig. 2 and Fig. 4 and B) simultaneously, and be that the center makes described two tissue layer formation mirror image with join domain (C) by using the jacquard fabric loom.
The main purpose of tissue layer of the present invention provides the textile bags that is subjected to inflations such as air.This join domain isolates the sack of the sack inflation that causes between two separated fabric layers, and this join domain will stand institute's applied pressure when charge air conditioning is directed therein.
In the present invention, join domain (C) can refer at separated region (A, point, line or face in the tissue layer of two separation B), at separated region (A, B) in, the warp on upper strata and the parallel of lower floor form single fabric, and the warp of lower floor and the parallel on upper strata form single fabric, or the warp on the parallel of lower floor and upper strata forms single fabric, so that this two fabric layers forms simple layer at join domain.This structure with connection is called syndeton.When this syndeton when forming, syndeton is called tie point; When this syndeton formed as line, syndeton was called connecting line; When this syndeton formed as face, syndeton was called joint face.Tie point, connecting line and joint face become join domain jointly.Weave and a little refer to warp and parallel zone intersected with each other, therefore can form fabric.
Have the structure that is separated into the upper and lower and the fabric of syndeton and can be divided into isolating construction (A of Fig. 2 and Fig. 4, B) and syndeton (C of Fig. 2 and Fig. 4).And it can be divided into following three zones: separated structure area surrounded (B of Fig. 4) or inflation area; Join domain (C of Fig. 2 and Fig. 4); And being connected zone (A of Fig. 4) outside the structure enclosing region, this zone is uncorrelated with inflation.
In Fig. 2, the right separator area (B) that is positioned at the left separator area (A) in tie point left side and is positioned at the tie point right side is each other in mirror image, and this just as shown in Figure 3 and Figure 4.
In other words, described left separator area (A) is at the pattern that repeats fully shown in Fig. 3 (a), and described right separator area (B) is the mirror image of Fig. 3 (a) and at the pattern that repeats fully shown in Fig. 3 (b).They go up intersected with each other at contact point (C).
In the present invention, (A B) can repeat twice separated region or more times is to guarantee that a plurality of tie points are arranged.If so, the power that produces in gas replenishment process are not to concentrate on first tie point, but also can be transferred to second or more a plurality of tie point on so that connecting line becomes firmer, and can prevent that air from leaking.
And preferred inflatable two-layer fabric of the present invention is coated with synthetic resin, leaks to reduce air.For described synthetic resin, employed any synthetic resin can use in fabric coating.In view of air-tightness and intensity consideration, preferably, polysiloxane coating is suitable.
The polyorganosiloxane resin coating is carried out effectively with in the little space of filling up two-layer fabrics, and it can be implemented in the either side or the both sides of fabric.For coating method, preferred multistep applies suddenly.If primary coat is applied and the face coating applies enforcement suddenly by multistep, then because coating amount reduces, thereby air-tightness can improve, and fabric becomes more flexible.
Preferred synthetic resin is with 40～150g/m
2Apply.If coating amount is less than 40g/m
2, then a large amount of air leak out from air bag, so inflated condition can not keep more than 5 seconds.In addition, if coating amount surpasses 150g/m
2, then air bag becomes too thick, and air bag can contact other structure in gas replenishment process.
In two-layer fabrics of the present invention, separating layer has the dual structure (Fig. 1) that is formed by plain weave, and syndeton is that the mirror image at center obtains by forming with the join domain.
Preferably can form two or more tie points to reduce leakage of air.
In order to ensure the air-tightness of two-layer fabrics, be very important by providing stretching resistance for pressure-air etc. to make fabric stretch minimum.Therefore, the structure on or the part that begins to connect separated from one another in two-layer beginning is an important factors.
In two-layer fabrics of the present invention, this problem solves by using plain weave, and this plain weave has high resistance for the external pulling force in tissue layer.Preferred use blanketing fctor (coverfactor) greater than 1900 high-density fabric so that good air-tightness to be provided, described blanketing fctor is by following equation 1 definition.If this blanketing fctor is less than 1900, then in gas replenishment process, air is tending towards leaking out.
Blanketing fctor (CF)=warp density (/ inch) * SQRT (warp Denier)+weft density (/ inch) * SQRT (parallel DENIER)
Two-layer fabrics of the present invention leaks to being lower than 0.8L/min/cm (measuring when using Antares ' Leak Tester 900Se at 2.5kPa) at the air of join domain per unit length.Surpass 0.8L/min/cm if the air of join domain per unit length leaks, then can not effectively protect the passenger by the automotive airbag that this fabric is made.
In addition, each tissue layer of two-layer fabrics of the present invention has less than the thickness of 0.5mm and less than the rigidity value of 3.5kgf, described thickness is measured by ASTM D 1777 methods, and described rigidity value is measured by ASTM D 4032 endless belt methods (circular band method).If the thickness of each tissue layer surpasses 0.5mm, then be not easy in vehicle, install automotive airbag.And if rigidity value surpasses 3.5kgf, then automotive airbag can not be inflated because of gas pressure usually.
For the air bag that plays the side curtain airbag function, when it was used the initial pressure of 50kPa, its internal pressure should be 6kPa at least after 5 seconds.When side curtain airbag was inflated under high temperature and high pressure, the suture strength of the join domain of being measured by ASTM D 5822 methods (C of Fig. 2) should be at least 80kg/in and tear to prevent air bag.In addition, minimize and prevent the fabric by heat fusing in order to make the gas leakage at join domain in gas replenishment process, rupture modulus should not surpass 60%.In particular, need relative higher coating amount because side curtain airbag is compared with common air bag, though therefore owing to fabric by the vibration abrasion of automobile after, side curtain airbag also can keep its intensity for a long time.For satisfying these conditions, inflatable two-layer fabric of the present invention need have following character: when using the gas after 5 seconds with 50kPa initial pressure, it has at least presses in the 6kPa; It has the suture strength of 80kg/in at least on join domain; Rupture modulus less than 60%; And the strength maintenance ratio with at least 80%, this ratio is measured by ASTM D 4157 methods.If this strength maintenance ratio is less than 80%, then air bag can be torn in gas replenishment process.
The present invention also is provided for the side curtain airbag of vehicle, and it comprises inflatable two-layer fabric.When vehicle rollover, side curtain airbag of the present invention keeps at least 5 seconds inflation.
As mentioned above, it is minimum that inflatable two-layer fabric of the present invention can make the air in the gas replenishment process leak, so this fabric is useful for automotive airbag, life vest and other absorbing vibration product.In addition, because two-layer fabrics of the present invention does not need to sew up, so production technology can simplify, thereby production cost can reduce.
Below, by embodiment the present invention is described in more detail.Yet the following example is just in order to understand the present invention, rather than for the restriction of the scope of the invention.
Embodiment
The physical property of two-layer fabrics of the present invention is determined as follows.
A) air at the join domain per unit length leaks (L/min/cm):
Use is equipped with air pressure regulator, airometer and manometric determinator and air is leaked measures.To the air pressure of the separated region injection 2.5kPa that cuts two-layer fabrics, so that two-layer fabrics is inflated fully.Then, measure the amount (unit: L) of unit interval (1 minute) leakage air of this two-layer fabrics, (unit: cm) leak with the air that obtains the join domain per unit length, described total connection length is measured by slide measure, tape measure or ruler divided by total connection length with this leaked air quantity then.
B) blanketing fctor: calculate by following equation 1.
Blanketing fctor (CF)=warp density (/ inch) * SQRT (warp Denier)+weft density (/ inch) * SQRT (parallel DENIER)
C) rigidity: measure by ASTM D 4032 endless belt methods
D) thickness of single tissue layer: measure by ASTM D 1777 methods.
E) suture strength: ASTM D 5822 methods are measured.
F) strength maintenance ratio: ASTM D 4157 methods are measured.
The polyamide multifilament that uses the 426-DENIER prepares plain weave two-layer fabrics (Fig. 2) as warp and parallel with the jacquard fabric loom, and wherein the separated region (A) in tie point (C) left side has the structure of Fig. 3 (a); Right side separated region (B) at tie point (C) is the mirror image of left side separated region (A) and has the structure of Fig. 3 (b); Left side separated region (A) and right side separated region (B) are gone up intersected with each other at tie point (C).Warp density and weft density are 52/ inch, and blanketing fctor is 2131.Then, polysiloxane rubber is coated in the both sides (coating amount: 100g/cm of two-layer fabrics by two step coating processs
2).Cutting fabric, the air of measuring per unit length on the join domain leaks the thickness of single tissue layer and rigidity value.The air of per unit length leaks and is 0.6L/min/cm on the join domain, and rigidity value is 2.5kgf, and the thickness of single tissue layer is 0.4mm.
Embodiment 2
The polyamide multifilament that uses the 315-DENIER prepares plain weave two-layer fabrics (Fig. 2) as warp and parallel with the jacquard fabric loom, and wherein the separated region (A) in tie point (C) left side has the structure of Fig. 3 (a); Right side separated region (B) at tie point (C) is the mirror image of left side separated region (A) and has the structure of Fig. 3 (b); Left side separated region (A) and right side separated region (B) are gone up intersected with each other at tie point (C).Warp density and weft density are 60/ inch, and blanketing fctor is 2129.Connecting line surrounds by plain-woven structure on whole fabric.In the connecting line outside that is surrounded, except that the inflation pattern, form planar structure.This planar structure must not be a syndeton.
Then, by the two step coating processs that primary coat is applied and face applies, polysiloxane rubber is coated in the both sides (coating amount: 100g/cm of two-layer fabrics
2), leak out from tie point or knitting a little to stop air.Cutting fabric, the air of measuring per unit length on the join domain leaks the thickness of single tissue layer and rigidity value.The air of per unit length leaks and is 0.7L/min/cm on this join domain, and rigidity value is 1.9kgf, and the thickness of single tissue layer is 0.39mm.
Embodiment 3
Remove the polysiloxane rubber coating amount and change into 90g/m
2Outside, prepare two-layer fabrics in the mode identical with embodiment 2.
The thickness in monolayer of the two-layer fabrics of measuring by ASTM D 1777 methods is 0.39mm.The rigidity value of being measured by ASTM D 4032 endless belt methods is 1.9kgf.The air bag that contains this fabric is applied the initial pressure of 50kPa, and the interior pressure of measuring air bag after 5 seconds is 12.5kPa.The suture strength of the join domain of measuring by ASTM D5822 method (C of Fig. 2) is 119kg/in, and rupture modulus is 43%.And according to ASTM D 4157 methods, the strength maintenance ratio of measuring by the coating fabrics wear testing is 90%.Therefore, this side curtain airbag has good installation character and inflatable property.
Embodiment 4
Except that the nylon of 420-DENIER as warp and the parallel, prepare two-layer fabrics in the mode identical with embodiment 1.
The thickness in monolayer of the two-layer fabrics of measuring by ASTM D 1777 methods is 0.4mm.The rigidity value of being measured by ASTM D 4032 endless belt methods is 2.5kgf.The air bag that contains this fabric is applied the initial pressure of 50kPa, and the interior pressure of measuring air bag after 5 seconds is 9.5kPa.The suture strength of the join domain of measuring by ASTM D5822 method (C of Fig. 2) is 123kg/in, and rupture modulus is 49%.And according to ASTM D 4157 methods, the strength maintenance ratio of measuring by the coating fabrics wear testing is 93%.Therefore, this side curtain airbag has good installation character and inflatable property.The interior pressure of air bag is measured by method shown in Figure 5.
As shown in Figure 5, air is injected in the air bag, interior voltage rise height.When pressure reached maximum, gas injected and stops, and measured the interior pressure of this air bag after 5.0 seconds.Use the electrical air injecting controller so that operate miss minimizes.
Comparing embodiment 1
The polyamide multifilament that uses the 426-DENIER prepares a kind of two-layer fabrics as warp and parallel with the jacquard fabric loom, and its join domain is formed by the weaving of 2/2 basket, and its separated region is formed by plain weave.Warp density and weft density are 53/ inch.Then, by two step coating processs, polysiloxane rubber is coated in the both sides (coating amount: 100g/cm of two-layer fabrics
2).Cutting fabric, the air of measuring per unit length on the join domain leaks the thickness of single tissue layer and rigidity value.The air of per unit length leaks and is 0.9L/min/cm on this join domain, and rigidity value is 3.6kgf, and the thickness of single tissue layer is 0.52mm.
Comparing embodiment 2
Except warp density and weft density are changed into 46/ inch, the blanketing fctor of single fabric is outside 1880, prepares two-layer fabrics in the mode identical with embodiment 4.
The fabric of this preparation applies in the mode identical with embodiment 1.By the woven thickness of ASTM D 1777 methods mensuration and the rigidity value of being measured by ASTM D 4032 endless belt methods all is satisfied, and they are respectively 0.38mm and 1.9kgf.The air bag that contains this fabric is applied the initial pressure of 50kPa, and the interior pressure of measuring air bag after 5 seconds is 5.8kPa.The suture strength of the join domain of measuring by ASTM D 5822 methods (C of Fig. 2) is 109kg/in, and rupture modulus is 47%.And according to ASTM D 4157 methods, the strength maintenance ratio of measuring by the coating fabrics wear testing is 90%, thereby has good installation character.Yet pressure is too low in this, means that a large amount of air leak out from air bag.
Comparing embodiment 3
By one-step method the two-layer fabrics for preparing in the mode identical with embodiment 1 is applied (coating amount: 200g/m
2).The quantity of gas leakage of the per unit length of measuring at 2.5kPa is 0.6L/min/cm.Therefore, the air bag that contains this fabric has excellent air-tightness.Yet, because the fabric thickness of measuring by ASTM D 1777 methods is 0.52mm, and the rigidity value of measuring by ASTM D 4032 endless belt methods is 3.6kgf, therefore installation character and the consideration of inflatable property from being used for side curtain airbag, and this fabric is inefficient.
Inflatable two-layer fabric of the present invention does not need to sew up, and therefore can simplify production technology, thereby reduces production cost.And, because join domain is a rigidity, air is leaked minimize.In addition, fabric of the present invention has excellent braiding character, and has good surface smoothness for coat of synthetic resin.Therefore, fabric of the present invention can be used for automotive airbag, life vest and other shock-absorbing products.
Though the present invention is described in detail with reference to preferred embodiment, art technology ordinary person will recognize under the situation of the spirit and scope of the invention that does not deviate from the claims proposition, can carry out various variations and replacement.
Claims (11)
1. inflatable two-layer fabric, it comprises the tissue layer of two separation that are made into simultaneously with loom and the join domain that connects described two tissue layer, and it is less than 0.8L/min/cm that the air of the per unit length of wherein said join domain leaks (measuring at 2.5kPa).
2. inflatable two-layer fabric as claimed in claim 1, it comprises the separated region (A that is made of two separated fabric layers, B) and the tie point (C) that described two separated fabric layers are linked together, wherein said separated region (A, B) left separator area (A) and right separator area (B) lay respectively at the left side and the right side of described tie point, and become mirror image each other, described join domain is formed by plain weave, and this plain weave forms by repeating braiding left side separated region (A) and right side separated region (B).
3. inflatable two-layer fabric as claimed in claim 1, it has the values of stiffness that is equal to or less than 3.5kgf.
4. inflatable two-layer fabric as claimed in claim 1, wherein each single tissue layer comprises that all thickness is equal to or less than the described two-layer fabrics of 0.5mm.
5. inflatable two-layer fabric as claimed in claim 1 all has comprising each single tissue layer of described two-layer fabrics and to be equal to or greater than 1900 blanketing fctor, and described blanketing fctor is by equation 1 definition:
Equation 1
Blanketing fctor (CF)=warp density (/ inch) * SQRT (warp Denier)+weft density (/ inch) * SQRT (parallel DENIER).
6. inflatable two-layer fabric as claimed in claim 1, it has the interior pressure that is equal to or greater than 6kPa at the initial pressure of using 50kPa after 5 seconds, it has suture strength, the rupture modulus less than 60% at the join domain place that is equal to or greater than 80kg/in and is equal to or greater than 80% tear strength keeps ratio.
7. inflatable two-layer fabric as claimed in claim 2, wherein said tie point repeats twice or more times.
8. inflatable two-layer fabric as claimed in claim 1, it is coated with synthetic resin.
9. inflatable two-layer fabric as claimed in claim 8, wherein the coating amount scope on a side of described two-layer fabrics is 40～150g/m
2
10. one kind comprises the automotive airbag as each described inflatable two-layer fabric in the claim 1～9.
11. automotive airbag as claimed in claim 10, it is the side curtain airbag that is used for vehicle.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020020068309A KR100853118B1 (en) | 2002-11-06 | 2002-11-06 | An inflatable two-layer fabric |
| KR10-2002-0068309 | 2002-11-06 | ||
| KR1020020068309 | 2002-11-06 | ||
| KR10-2003-0020417 | 2003-04-01 | ||
| KR1020030020417A KR100613268B1 (en) | 2003-04-01 | 2003-04-01 | Inflatable two-layer fabrics |
| KR1020030020417 | 2003-04-01 | ||
| PCT/KR2003/002370 WO2004042128A1 (en) | 2002-11-06 | 2003-11-06 | Inflatable two-layer fabrics |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1735721A true CN1735721A (en) | 2006-02-15 |
| CN1735721B CN1735721B (en) | 2011-04-06 |
Family
ID=36077550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2003801083834A Expired - Fee Related CN1735721B (en) | 2002-11-06 | 2003-11-06 | Inflatable two-layer fabrics |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100853118B1 (en) |
| CN (1) | CN1735721B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101437994B (en) * | 2006-05-05 | 2011-11-23 | 全球安全纺织有限公司 | Seam construction for a woven fabric |
| CN102459730A (en) * | 2009-04-30 | 2012-05-16 | 全球安全纺织有限公司 | Fabric, in particular for an airbag |
| CN103079906A (en) * | 2010-10-13 | 2013-05-01 | 奥托立夫开发公司 | Airbag for a vehicle |
| CN103173909A (en) * | 2012-11-22 | 2013-06-26 | 中原工学院 | Weaving method of three-dimensional T-shaped tubular woven fabrics formed integrally |
| CN103582726A (en) * | 2011-03-31 | 2014-02-12 | 可隆工业株式会社 | Two-layer fabric capable of being inflated with air, and method for producing same |
| CN104872874A (en) * | 2015-04-24 | 2015-09-02 | 福建龙峰纺织科技实业有限公司 | Imitation needle-sewn double-layer plain fabric for down coats and manufacturing method thereof |
| CN107429444A (en) * | 2015-03-26 | 2017-12-01 | N·A·坎德瑞安-贝尔 | Inflatable jacquard fabric for structure application |
| CN108138393A (en) * | 2015-02-06 | 2018-06-08 | 住商安全气囊系统株式会社 | Cylinder knits air bag |
| CN109487406A (en) * | 2018-12-29 | 2019-03-19 | 张家港宇新羊毛工业有限公司 | One kind having multi-functional composite terylene fabric |
| CN113151953A (en) * | 2021-04-09 | 2021-07-23 | 南通帝人有限公司 | Three-layer fabric |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104250869B (en) * | 2014-09-04 | 2016-08-24 | 华懋（厦门）新材料科技股份有限公司 | The cushion seal structure of one-shot forming inflation fabric |
| KR102335225B1 (en) | 2019-05-23 | 2021-12-06 | 원창머티리얼 주식회사 | Non-seam double weave down fabric |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5704402A (en) * | 1996-04-01 | 1998-01-06 | Milliken Research Corporation | Air bag fabric |
| US6220309B1 (en) * | 1999-09-24 | 2001-04-24 | Milliken & Company | Inflatable fabrics comprising basket-woven attachment points between fabric panels |
-
2002
- 2002-11-06 KR KR1020020068309A patent/KR100853118B1/en active IP Right Grant
-
2003
- 2003-11-06 CN CN2003801083834A patent/CN1735721B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101437994B (en) * | 2006-05-05 | 2011-11-23 | 全球安全纺织有限公司 | Seam construction for a woven fabric |
| CN102459730A (en) * | 2009-04-30 | 2012-05-16 | 全球安全纺织有限公司 | Fabric, in particular for an airbag |
| CN103079906A (en) * | 2010-10-13 | 2013-05-01 | 奥托立夫开发公司 | Airbag for a vehicle |
| CN103079906B (en) * | 2010-10-13 | 2015-10-14 | 奥托立夫开发公司 | For the safety air bag of vehicle |
| CN103582726B (en) * | 2011-03-31 | 2015-06-03 | 可隆工业株式会社 | Two-layer fabric capable of being inflated with air, and method for producing same |
| CN103582726A (en) * | 2011-03-31 | 2014-02-12 | 可隆工业株式会社 | Two-layer fabric capable of being inflated with air, and method for producing same |
| CN103173909A (en) * | 2012-11-22 | 2013-06-26 | 中原工学院 | Weaving method of three-dimensional T-shaped tubular woven fabrics formed integrally |
| CN103173909B (en) * | 2012-11-22 | 2014-09-03 | 中原工学院 | Weaving method of three-dimensional T-shaped tubular woven fabrics formed integrally |
| CN108138393A (en) * | 2015-02-06 | 2018-06-08 | 住商安全气囊系统株式会社 | Cylinder knits air bag |
| CN107429444A (en) * | 2015-03-26 | 2017-12-01 | N·A·坎德瑞安-贝尔 | Inflatable jacquard fabric for structure application |
| CN104872874A (en) * | 2015-04-24 | 2015-09-02 | 福建龙峰纺织科技实业有限公司 | Imitation needle-sewn double-layer plain fabric for down coats and manufacturing method thereof |
| CN104872874B (en) * | 2015-04-24 | 2016-07-06 | 福建龙峰纺织科技实业有限公司 | A kind of imitative double-deck plain weave feather dress fabric of pin seam and manufacture method thereof |
| CN109487406A (en) * | 2018-12-29 | 2019-03-19 | 张家港宇新羊毛工业有限公司 | One kind having multi-functional composite terylene fabric |
| CN113151953A (en) * | 2021-04-09 | 2021-07-23 | 南通帝人有限公司 | Three-layer fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040040023A (en) | 2004-05-12 |
| CN1735721B (en) | 2011-04-06 |
| KR100853118B1 (en) | 2008-08-21 |
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