KR20160148384A - Airbag Fabric and Method for Manufacturing The Same - Google Patents

Abstract

Disclosed are a fabric for airbags and a production method thereof. The fabric for airbags enables the production of light-weight airbags, has superior conformational stability, and secures high airtight properties all the time without danger of delamination. The fabric for airbags comprises: a fibrous base material which includes a component region having a double-layered structure composed of a first layer and a second layer, and further includes a non-component region having a single-layered structure for supporting the component region; and a polymer layer on the fibrous base material. At least one of the first layer and the second layer includes a first part having a plain-woven pattern and a second part having a non-plain-woven pattern.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an airbag fabric,

The present invention relates to an airbag fabric and a method of manufacturing the airbag fabric. More particularly, the present invention relates to an airbag fabric and a method of manufacturing the airbag fabric, and more particularly, to an airbag fabric having excellent airtightness and airtightness, The present invention relates to an airbag fabric airbag fabric, and a manufacturing method thereof.

When the impact sensor detects an impact applied to the vehicle when the vehicle collides or overturns when the vehicle is running at a speed higher than a predetermined speed, the airbag inflates and deploys to protect the driver and the passenger of the vehicle from accidents.

The airbag fabric must have low air permeability for smooth deployment in the event of a vehicle accident and should have excellent mechanical properties (e.g., tensile strength, dimensional stability, etc.) to prevent damage to the airbag itself, It should have a low stiffness in order to improve the storage capacity. At the same time, as interest in the environment increases, the weight of the airbag fabric is continuously required to improve the fuel efficiency of the vehicle.

Generally, the fabric for the airbag further includes a coating layer for enhancing the airtightness of the fabric in addition to the textile substrate.

Polyamide yarns such as nylon 66 or polyester yarns are mainly used for the production of fiber substrates. Generally, the fiber substrate is a plain weave or basket weave fabric or an OPW (One Piece Woven) type fabric.

Neoprene rubber was used as a main material in the coating layer in the early days, but it is no longer used due to environmental problems.

In recent years, silicone-coated fabrics or polyurethane-coated fabrics in which a silicone resin or a polyurethane resin is coated on one side or both sides of a fabric by knife coating method are used in the manufacture of airbags.

However, when a knife coating is applied in the manufacture of a fabric for an airbag which must be maintained in a state of being inflated for a relatively long period of time, such as a side curtain, a relatively large amount of resin must be coated, It is impossible to satisfy the demand for the weight reduction of the air bag fabric which is continuously strengthened to improve the fuel efficiency of the air bag.

In order to overcome such shortcomings of the resin coating, a film laminating method which is advantageous in terms of weight reduction compared to the resin coating has been proposed. According to the film laminating method, since the polymer film having a relatively low weight per unit area is adhered on the surface of the fiber substrate, an air bag fabric can be provided which is more airtight than the airtightness of the air bag fabric to which the resin coating method is applied, have.

However, when the film laminating method is applied to lighten the airbag fabric, the airbag fabric is often delaminated into the fibrous base material and the polymer film with the lapse of time or with the high-pressure air infusion. Such delamination sharply reduces the airtightness of the airbag fabric and, as a result, the safety of the passenger can not be guaranteed in the event of a car accident.

Accordingly, the present invention is directed to an airbag fabric and a method of manufacturing the same that can prevent problems due to limitations and disadvantages of the related art.

An aspect of the present invention is to provide an airbag fabric that satisfies the airbag lighter weight requirement and at the same time has excellent form stability and no danger of delamination and can always ensure high airtightness.

Another aspect of the present invention is to provide a method of manufacturing an airbag fabric that satisfies the airbag lighter weight requirement and at the same time has excellent form stability and no danger of delamination and can always ensure high airtightness.

Other features and advantages of the invention will be set forth in the description which follows, or may be learned by those skilled in the art from the description.

In accordance with one aspect of the present invention as described above, an inflatable zone of a double-layered structure having first and second layers and a single-layered structure supporting the component region A textile substrate comprising an uninflatable zone of a substrate; And a polymer layer on the fiber substrate, wherein at least one of the first and second layers comprises a first portion of a plain weave pattern and a second portion of a non-plain weave pattern An airbag fabric is provided.

Each of the first and second layers may comprise a first portion of the plain weave pattern and a second portion of the non-parallel pattern.

The non-parallel pattern may be a 2x1 weave pattern, a 3x1 weave pattern, or a mixed pattern thereof.

The ratio of the number of slopes of the first portion to the number of slopes of the second portion may be from 1: 1 to 3: 1.

Wherein the fiber substrate is a one-piece woven type fiber substrate, each of the first and second layers comprising a plurality of warp yarns and a plurality of wefts, A density of the warp yarns and a density of the weft yarns is 25 to 144 th / inch, each of the warp yarns and the weft yarns may include at least one of polyamide, polyester, and polyolefin .

The polymer layer may have a thickness of 20 to 200 μm and a weight per unit area of 15 to 45 g / m ² .

The polymer layer comprising: a first sub-layer disposed on the fiber substrate and comprising a first polymer having a melting point of from 50 to 150 캜; And a second sub-layer disposed on the first sub-layer and comprising a second polymer having a melting point of 100-220 < 0 > C.

The melting point of the second polymer may be 50 to 70 ° C higher than the melting point of the first polymer.

Wherein the first polymer is a polyolefin, a polyester, a copolyester, a thermoplastic polyurethane, a polyamide, a copolyamide, an ethylene vinyl acetate polymer, or a polyacrylate, and the second polymer is a polyamide, a copolyamide, a thermoplastic poly Urethane, or an ethylene copolymer.

The adhesion between the fibrous substrate and the polymer layer, as measured by ASTM D 1876, may be 0.5 N / mm or greater.

According to another aspect of the present invention, there is provided a method of manufacturing a semiconductor device, comprising the steps of: preparing a fiber substrate comprising a dual-layered component region having first and second layers and a non-component region of a single layer structure supporting the component region; And laminating the polymer film onto the fibrous substrate, wherein at least one of the first and second layers comprises a first portion of a plain weave pattern and a second portion of an uneven pattern, / RTI >

Each of the first and second layers may comprise a first portion of the plain weave pattern and a second portion of the non-parallel pattern.

The non-parallel pattern may be a 2x1 weave pattern, a 3x1 weave pattern, or a mixed pattern thereof.

The ratio of the number of slopes of the first portion to the number of slopes of the second portion may be from 1: 1 to 3: 1.

Wherein each of the first and second layers comprises a plurality of warp yarns and a plurality of wefts, wherein the warp yarns and the weft yarns have a fineness of 210 to 1500 denier , The density of the warp yarns and the density of the weft yarns is 25 th / inch to 144 th / inch, and each of the warp yarns and the weft yarns may include at least one of polyamide, polyester, and polyolefin.

The step of laminating the polymer film comprises: laminating a first sub-film having a melting point of 50 to 150 캜 on the fiber substrate; And laminating a second sub-film having a melting point of 100 to 220 캜 on the first sub-film.

Alternatively, the step of laminating the polymeric film comprises providing a first sublayer comprising a first polymer having a melting point of from 50 to 150 DEG C and a second sublayer comprising a second polymer having a melting point of from 100 to 220 DEG C, Preparing a multi-layer film including the multi-layer film; And laminating the multi-layer film on the fibrous substrate such that the first sub-layer is between the fibrous substrate and the second sub-layer.

The melting point of the second polymer is 50 to 70 DEG C higher than the melting point of the first polymer and the laminating step may be performed at a temperature 30 to 40 DEG C higher than the melting point of the first polymer.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are intended to provide further explanation of the invention as claimed.

According to the present invention, by applying the film laminating method instead of the resin coating method, the airbag fabric can have excellent airtightness (i.e., air barrier property) despite having a low weight per unit area.

In addition, since the fibrous substrate of the present invention to which the polymer film is attached includes a plain weave pattern, the fiber substrate has a higher (higher) Airtightness and form stability can be provided to the airbag fabric.

In addition, since the fiber substrate of the present invention includes not only a plain weave pattern but also an uneven pattern, the area of adhesion to the polymer film is larger than that of a conventional fiber substrate made of plain weave pattern alone. This increase in adhesion area can significantly reduce the risk of delamination of the airbag fabric. Elimination of the risk of delamination can ensure the high airtightness of the airbag under any circumstances, and as a result can further enhance the protection of passengers from car accidents.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 schematically shows a weaving pattern of a component region of a fiber substrate according to an embodiment of the present invention,
Fig. 2 schematically shows a weaving pattern of a component region of a fibrous substrate according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the embodiments described below are provided for illustrative purposes only, and do not limit the scope of the present invention.

The airbag fabric of the present invention comprises a fibrous substrate and a polymer layer on said fibrous substrate.

The fibrous substrate comprises an inflatable zone of a double-layered structure having first and second layers and a non-parting structure of a single-layered structure supporting the component region, And includes an uninflatable zone. The fibrous substrate may be a fibrous substrate of the one-piece woven (OPW) type.

In the event of a vehicle accident, air is injected into the component area (i.e., into the space surrounded by the first and second layers) and the airbag is inflated to protect the driver and the passenger from accidents.

According to the present invention, at least one of the first and second layers of the component region has a first portion of a plain weave pattern (i.e., a 1x1 weave pattern) and a non-plain weave pattern ). ≪ / RTI > Advantageously, each of said first and second layers may comprise a first portion of said plain weave pattern and a second portion of said non-parallel pattern.

The non-parallel pattern may be an nx1 weave pattern (where n is a natural number of 2 or more).

Since the fiber substrate of the present invention includes a plain weave pattern in the component area, it has a higher airtightness and shape (for example, a 2x1 weave pattern, a 3x1 weave pattern, and the like) Stability can be provided to the airbag fabric.

On the other hand, when the component region of the fiber substrate is composed of plain weave pattern, the adhesion area of the component region to be adhered to the laminated polymer film is only about 50% of the total surface area of the component region. This low adhesion area ratio increases the risk of delamination of the airbag fabric. Such delamination sharply reduces the airtightness of the airbag fabric, so that the safety of passengers can not be guaranteed in the event of a car accident.

On the other hand, since the fiber substrate of the present invention includes a plain pattern as well as an uneven pattern in the component area, when the laminating process for forming the polymer layer is performed, it is wider Can be bonded to the polymer film through the area.

This increase in adhesion area between the particulate region of the fibrous substrate and the polymer film significantly reduces the risk that the airbag fabric will be delaminated into the fibrous substrate and the polymer film. Reducing the risk of delamination ensures the high airtightness of the airbag under any circumstances and consequently further enhances driver and passenger protection from motor vehicle accidents.

The non-flattened pattern included with the plain weave pattern in the component area of the fiber substrate of the present invention is an n x 1 weave pattern (where n is a natural number of 2 or more), and the number of slopes of the first part of the plain weave pattern And the ratio of the number of slopes of the second portion of the non-flat pattern is k: 1, the ratio of the adhesive area of the component area (i.e., the ratio of the total surface area of the component area to the area bonded to the polymer film laminated ) Can be calculated theoretically by the following equation (1).

(%) = [(N (k + 2) -1) / n (2k + 2)] 100

For example, as illustrated in FIG. 1, when the non-parallel pattern is a 2x1 weave pattern and the number of slopes 101a of the first portion 100a of the plain weave pattern versus the number of the second portions 100b of the non- When the ratio of the number of the warp yarns 101b is 1: 1 (i.e., n = 2, k = 1), the adhesive area ratio of the component region is about 62.5%.

2, when the non-parallel pattern is a 3x1 weave pattern and the number of slopes 201a of the first portion 200a of the plain weave pattern is greater than the number of slopes 201a of the second portion 200b of the non- 201b) is 1: 1 (i.e., n = 3, k = 1), the adhesive area ratio of the component region is about 66.6%.

Although not shown,

When n = 2 and k = 2, the component adhesive area ratio is about 58.3%

When n = 2 and k = 3, the component adhesive area ratio is about 56.3%

When n = 3 and k = 2, the component adhesive area ratio is 61.1%

When n = 3 and k = 3, the component adhesive area ratio is about 58.3%.

In summary, the larger n (i.e., the number of warp yarns corresponding to each weft in the non-parallel pattern) and the smaller k (i.e., the ratio of the warp number of the plain weft pattern portion to the warp yarn number of the non- The adhesion area ratio of the sintered area becomes large. Therefore, in order to effectively prevent delamination of the airbag fabric, k is preferably 3 or less. However, when n is 4 or more or k is less than 1, the structure of the fiber base material itself collapses or the airtightness of the air bag becomes too low, so that the safety of the driver and the passenger can not be guaranteed.

Therefore, it is preferred that the non-planar pattern of the present invention is a 2x1 weave pattern, a 3x1 weave pattern, or a mixture thereof, and the second portion having a nonuniform pattern versus the number of turns of the first portion having a plain- Is preferably 1: 1 to 3: 1.

Each of the warp yarns constituting the first and second layers of the component region and the weft yarns may be formed of polyamide (e.g., nylon 6, nylon 66, aramid, etc.), polyester (e.g., polyethylene terephthalate) , And a polyolefin (e.g., polyethylene, polypropylene, and the like). In consideration of the airbag deployment performance and price, nylon-based fibers or polyester-based fibers may be preferred.

According to one embodiment of the present invention, the warp yarns and the weft yarns have a fineness of 210 to 1500 denier, preferably 315 to 840 denier.

The fineness of the yarns should be 210 denier or more so that the airbag fabric has an absorption performance and an excellent strength capable of absorbing the development energy of high-temperature and high-pressure when the airbag is deployed. On the other hand, the fineness of the yarns is preferably 1500 denier or less in order to make the airbag foldable and lightweight.

From the viewpoints of flexibility, smoothness of the coated surface, and the like, it is preferable that each of the warp yarns and the weft yarns are multifilaments comprising at least 68 filaments.

According to one embodiment of the present invention, the component region of the fibrous substrate has a warp density and weft density of 25 to 144 th / inch. The warp density and weft density should be 25 th / inch or more to satisfy the minimum mechanical strength required in the industry. On the other hand, when the warp density and / or the warp density exceeds 144 th / inch, the fabric can not satisfy the low degree of lubrication of 1 to 5 N, and the folding property and the storage property of the air bag are lowered.

More specifically, plain weave type fiber substrates for frontal air bags have a warp density and weft density of 25 to 60 th / inch, and since the one-piece weft (OPW) type fiber substrate has a double layer structure A warp density of 90 to 144 th / inch and a warp density.

According to one embodiment of the present invention, the polymer layer on the fibrous substrate may comprise first and second sublayers.

The first sub-layer comprises a first polymer disposed on the fiber substrate and having a melting point of from 50 to 150 < 0 > C. The second sub-layer includes a second polymer disposed on the first sub-layer and having a melting point of 100-220 < 0 > C. The melting point of the second polymer is preferably 50 to 70 ° C higher than the melting point of the first polymer.

The second sub-layer performs an air-blocking function, and the first sub-layer mediates the pressure bonding of the fibrous substrate of the present invention and the first sub-layer.

The first polymer may be a polyolefin, a polyester, a copolyester, a thermoplastic polyurethane, a polyamide, a copolyamide, an ethylene vinyl acetate polymer, a polyacrylate, or a mixture thereof. In view of adhesion and elasticity with the surface of the fiber substrate, the first polymer is preferably a polyolefin, a thermoplastic polyurethane, a polyamide, a copolyamide, or a mixture thereof.

The second polymer may be a polyamide, a copolyamide, a thermoplastic polyurethane, an ethylene copolymer, or a mixture thereof. In consideration of the adhesion with the first sub-layer and the air-blocking effect, the second polymer is preferably a polyamide, a copolyamide, a thermoplastic polyurethane, or a mixture thereof.

According to an embodiment of the present invention, the polymer layer may have a thickness of 20 to 200 占 퐉, preferably 30 to 150 占 퐉, more preferably 40 to 100 占 퐉. If the thickness of the polymer layer is less than 20 占 퐉, the minimum airtightness required for the airbag can not be satisfied. On the other hand, when the thickness of the polymer layer is more than 200 mu m, the elasticity of the fabric for airbags exceeds 10 N, so that the foldability and retention of the airbag produced by the airbag are remarkably decreased, Is bad.

According to one embodiment of the present invention, the polymer layer may have a weight per unit area of 15 to 45 g / m ² , preferably 20 to 40 g / m ² , more preferably 25 to 35 g / m ² have. At this time, the weight per unit area of the first sub-layer may be 7 to 22 g / m ² , preferably 10 to 20 g / m ² , and more preferably 12 to 17 g / m ² .

If the weight per unit area of the polymer layer is 15 g / m ² or more, the uniform thickness of the first and second layers can be ensured and the desired mechanical properties of the airbag fabric can be obtained. On the other hand, when the weight per unit area of the polymer layer is more than 45 g / m ² , the air bag fabric has a degree of lapping exceeding 10 N, and the folding property and storage property of the air bag produced thereby are remarkably decreased. The economy is getting worse.

In the airbag fabric of the present invention described above, the adhesion between the fibrous substrate and the polymer layer may be 0.5 N / mm or more. The adhesion is a value measured according to ASTM D 1876.

Hereinafter, a method of manufacturing an airbag fabric according to an embodiment of the present invention will be described in detail.

The method of the present invention comprises the steps of preparing a fiber substrate comprising a dual-layer structural component region having first and second layers and a non-component region of a single layer structure supporting the component region, And laminating the polymer film. At least one of the first and second layers comprises a first portion of a plain weave pattern and a second portion of an uneven pattern.

As described above, the fiber substrate may be a one-piece weave type fiber substrate. It is also preferred that each of the first and second layers comprises a first portion of the plain weave pattern and a second portion of the non-parallel pattern.

The non-parallel pattern may be a 2x1 weave pattern, a 3x1 weave pattern, or a mixed pattern thereof, wherein the ratio of the number of slopes of the first portion to the number of slopes of the second portion is from 1: 1 to 3: 1 < / RTI >

Each of the first and second layers comprising a plurality of warp yarns and a plurality of wefts, wherein the warp yarns and the weft yarns have a fineness of from 210 to 1500 denier, the density of the warp yarns and the density of the weft yarns are from 25 to 144 th / inch, and each of the warp yarns and the weft yarns may include at least one of polyamide, polyester, and polyolefin.

By laminating the polymer film onto the fiber substrate, the airbag fabric produced by the process of the present invention can have excellent airtightness (i.e. air barrier properties) and high dimensional stability, even though it has a low weight per unit area.

The laminating process may be performed by a roll calendaring method, a flat bed calendaring method, a transfer calendaring method, a flame laminating method, or the like, Roll calendering method.

According to one embodiment of the present invention, the step of laminating the polymer film comprises laminating a first sub-film having a melting point of 50 to 150 캜 on the fiber substrate; And laminating a second sub-film having a melting point of 100 to 220 캜 on the first sub-film.

Alternatively, laminating the polymer film may comprise preparing a multi-layer film and laminating the multi-layer film onto the fiber substrate.

Wherein the multi-layer film comprises a first sublayer comprising a first polymer having a melting point of from 50 to 150 DEG C and a second sublayer comprising a second polymer having a melting point of from 100 to 220 DEG C, 1 sublayer is laminated on the fibrous substrate such that it is positioned between the fibrous substrate and the second sublayer.

The laminating process of the multi-layer film is preferably performed in a temperature range that can sufficiently melt the first polymer while preventing thermal damage to the second polymer.

According to an embodiment of the present invention, the melting point of the second polymer is 50 to 70 ° C higher than the melting point of the first polymer, and the laminating step is performed at a temperature 30 to 40 ° C higher than the melting point of the first polymer do. For example, the laminating process is performed at 80 to 180 ° C, preferably 120 to 170 ° C, so that the first polymer is sufficiently melted to easily penetrate into the fiber substrate to improve the adhesion with the fiber substrate As well as the second sub-layer comprising the second polymer can maintain a uniform thickness.

As described above, the first polymer may be a polyolefin, a polyester, a copolyester, a thermoplastic polyurethane, a polyamide, a copolyamide, an ethylene vinyl acetate polymer, a polyacrylate, or a mixture thereof. In view of adhesion and elasticity with the surface of the fiber substrate, the first polymer is preferably a polyolefin, a thermoplastic polyurethane, a polyamide, a copolyamide, or a mixture thereof.

The second polymer may also be a polyamide, a copolyamide, a thermoplastic polyurethane, an ethylene copolymer, or a mixture thereof. In consideration of the adhesion with the first sub-layer and the air-blocking effect, the second polymer is preferably a polyamide, a copolyamide, a thermoplastic polyurethane, or a mixture thereof.

Hereinafter, the effects of the present invention will be described with reference to specific examples and comparative examples of the present invention. It should be understood, however, that the following examples are for the purpose of promoting understanding of the present invention and are not intended to limit the scope of the present invention.

Example  One

One-piece weft (OPW) type fiber substrate was produced by using polyester (PET) yarn formed with 144 filaments and having a total fineness of 500 denier as warp and weft. Each of the first and second layers of the component region of the fibrous substrate had a slope density of 114 th / inch and a 96th / inch weft density, and the first portion of the plain weave pattern and the second portion of the 2 x 1 weave pattern . The ratio of the number of tilts of the first portion to the number of tilts of the second portion was 1: 1.

0.04 mm thick multi-layer film (manufacturer: Nolax, trade name: A23.2276C) comprising a polyolefin layer having a melting point of 125 DEG C and a polyamide layer having a melting point of 210 DEG C was coated on one side of the fiber substrate at 170 DEG C At a pressure of 2 N / cm < ² > (the polyolefin layer was in direct contact with the fiber substrate).

Example  2

The airbag fabric was completed in the same manner as in Example 1, except that the second portion of the fibrous substrate had a 3x1 weave pattern, not a 2x1 weave pattern.

Example  3

The airbag fabric was completed in the same manner as in Example 1, except that the ratio of the number of slopes of the first portion to the number of slopes of the second portion was 2: 1.

Example  4

The airbag fabric was completed in the same manner as in Example 1, except that the ratio of the number of tilts of the first portion to the number of tilts of the second portion was 3: 1.

Example  5

Except that the second portion of the fibrous substrate had a 3x1 weave pattern, not a 2x1 weave pattern, and the ratio of the number of turns of the first portion to the number of turns of the second portion was 2: 1. The airbag fabric was completed in the same manner as in Example 1.

Example  6

The airbag fabric was completed in the same manner as in Example 1, except that the second portion of the fibrous substrate had a 4x1 weave pattern, not a 2x1 weave pattern.

Example  7

The airbag fabric was completed in the same manner as in Example 1, except that the ratio of the number of tilts of the first portion to the number of tilts of the second portion was 4: 1.

Comparative Example  One

A fabric for an airbag was completed in the same manner as in Example 1 except that the component region of the fiber substrate was made of a plain weave pattern only.

Comparative Example  2

A fabric for airbags was completed in the same manner as in Example 1, except that the component area of the fiber substrate was composed of only a 2x1 weave pattern.

Comparative Example  3

A fabric for airbags was completed in the same manner as in Example 1 except that the component area of the fiber substrate was composed of only a 3x1 weave pattern.

The air permeability of the airbag fabrics and the adhesion between the fiber substrate and the film of the above-described Examples and Comparative Examples were measured by the following methods, and the results are shown in Table 1 below.

* Air permeability

The airbag fabric was allowed to stand at 20 DEG C and 65% RH for 1 day according to ISO 9237 (Determination of the Permeability of Fabrics to Air) test method, and then the amount of air having a pressure of 500 Pa passed through a 100 cm ² round surface was measured.

* Adhesion

The adhesion between the fiber substrate and the multi-layer film of the airbag fabric was measured according to the ASTM D 1876 test method.

Example
One Example
2 Example
3 Example
4 Example
5 Example
6 Example
7 Comparative Example
One Comparative Example
2 Comparative Example
3 Fiber substrate
Weaving pattern Plain weave
+
2 x 1 Plain weave
+
3 x 1 Plain weave
+
2 x 1 Plain weave
+
2 x 1 Plain weave
+
3 x 1 Plain weave
+
4 × 1 Plain weave
+
2 x 1
Plain weave
2 x 1
3 x 1 Plain weave: critical 1: 1 1: 1 2: 1 3: 1 2: 1 1: 1 4: 1 - - - Air permeability
(l / dm < ^{2 >} / min) 0 0 0 0 0 0 0 0 - - Adhesion
(N / mm) 0.8 0.9 0.8 0.7 0.8 0.9 0.7 0.4 1.1 1.1

As can be seen from Table 1, when the fiber substrate contains only a plain weave pattern (Comparative Example 1), the adhesive strength was unsatisfactory. On the other hand, when the fiber substrate contains only a 2 × 1 weave pattern (Comparative Example 2) and includes only a 3 × 1 weave pattern (Comparative Example 3), the structure is collapsed and the shape of the fabric can not be maintained.

100a, 200a: first part of plain weave pattern
100b: the second part of the 2x1 weave pattern
200b: the second part of the 3x1 weave pattern
101a: inclination of the second part of the 2x1 weaving pattern
201a: inclination of the second part of the 3x1 weaving pattern
102, 202: weft

Claims (18)

An uninflatable zone of a single-layered structure supporting the component region and an inflatable zone of a double-layered structure having first and second layers, A textile substrate; And
A polymer layer on said fiber substrate,
Wherein at least one of the first and second layers comprises a first portion of a plain weave pattern and a second portion of a non-plain weave pattern.
Airbag fabric. The method according to claim 1,
Wherein each of the first and second layers comprises a first portion of the plain weave pattern and a second portion of the non-
Airbag fabric. The method according to claim 1,
The non-parallel pattern may be a 2x1 weave pattern, a 3x1 weave pattern,
Airbag fabric. The method according to claim 1,
Wherein the ratio of the number of slopes of the first portion to the number of slopes of the second portion is from 1: 1 to 3:
Airbag fabric. The method according to claim 1,
The fiber substrate is a one-piece woven type fiber substrate,
Each of the first and second layers comprising a plurality of warp yarns and a plurality of weft yarns,
Wherein the warp yarns and the weft yarns have a fineness of 210 to 1500 denier,
The density of the warp yarns and the density of the weft yarns is 25 th / inch to 144 th / inch,
Wherein each of the warp yarns and the weft yarns comprises at least one of a polyamide, a polyester, and a polyolefin.
Airbag fabric. The method according to claim 1,
The polymer layer having a thickness of 20 to 200㎛ and 15 to 45 g per unit area / m ² by weight of,
Airbag fabric. The method according to claim 1,
Wherein the polymer layer
A first sub-layer disposed on the fibrous substrate and comprising a first polymer having a melting point of from 50 to 150 캜; And
A second sub-layer disposed on the first sub-layer and comprising a second polymer having a melting point of 100-220 < 0 >C;
Airbag fabric. 8. The method of claim 7,
The melting point of the second polymer is 50 to 70 DEG C higher than the melting point of the first polymer,
Airbag fabric. 9. The method of claim 8,
Wherein the first polymer is a polyolefin, a polyester, a copolyester, a thermoplastic polyurethane, a polyamide, a copolyamide, an ethylene vinyl acetate polymer, or a polyacrylate,
Wherein the second polymer is a polyamide, a copolyamide, a thermoplastic polyurethane, or an ethylene copolymer,
Airbag fabric. The method according to claim 1,
Wherein the adhesion between the fibrous substrate and the polymer layer as measured by ASTM D 1876 is at least 0.5 N / mm,
Airbag fabric. Preparing a fiber substrate comprising a dual-layered component region having first and second layers and a non-component region of a single-layer structure supporting the component region; And
And laminating the polymeric film onto the fibrous substrate,
Wherein at least one of the first and second layers comprises a first portion of a plain weave pattern and a second portion of an uneven pattern,
A method of manufacturing an airbag fabric. 12. The method of claim 11,
Wherein each of the first and second layers comprises a first portion of the plain weave pattern and a second portion of the non-
A method of manufacturing an airbag fabric. 12. The method of claim 11,
The non-parallel pattern may be a 2x1 weave pattern, a 3x1 weave pattern,
A method of manufacturing an airbag fabric. 12. The method of claim 11,
Wherein the ratio of the number of slopes of the first portion to the number of slopes of the second portion is from 1: 1 to 3:
A method of manufacturing an airbag fabric. 12. The method of claim 11,
The fiber substrate is a one-piece woven type fiber substrate,
Each of the first and second layers comprising a plurality of warp yarns and a plurality of weft yarns,
Wherein the warp yarns and the weft yarns have a fineness of 210 to 1500 denier,
The density of the warp yarns and the density of the weft yarns is 25 th / inch to 144 th / inch,
Wherein each of the warp yarns and the weft yarns comprises at least one of a polyamide, a polyester, and a polyolefin.
A method of manufacturing an airbag fabric. 12. The method of claim 11,
Wherein the step of laminating the polymer film comprises:
Laminating a first sub-film having a melting point of 50 to 150 캜 on the fiber substrate; And
And laminating a second sub-film having a melting point of 100 to 220 캜 on the first sub-film.
A method of manufacturing an airbag fabric. 12. The method of claim 11,
Wherein the step of laminating the polymer film comprises:
Preparing a multi-layer film comprising a first sub-layer comprising a first polymer having a melting point of from 50 to 150 캜 and a second sub-layer comprising a second polymer having a melting point of from 100 to 220 캜; And
Laminating the multi-layer film onto the fibrous substrate such that the first sub-layer is between the fibrous substrate and the second sub-layer.
A method of manufacturing an airbag fabric. 18. The method of claim 17,
The melting point of the second polymer is 50 to 70 DEG C higher than the melting point of the first polymer,
Wherein the laminating step is performed at a temperature 30 to 40 DEG C higher than the melting point of the first polymer.
A method of manufacturing an airbag fabric.

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