WO2012134228A2 - 기체에 의한 부품성 이중직물 및 그의 제조 방법 - Google Patents
기체에 의한 부품성 이중직물 및 그의 제조 방법 Download PDFInfo
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- WO2012134228A2 WO2012134228A2 PCT/KR2012/002398 KR2012002398W WO2012134228A2 WO 2012134228 A2 WO2012134228 A2 WO 2012134228A2 KR 2012002398 W KR2012002398 W KR 2012002398W WO 2012134228 A2 WO2012134228 A2 WO 2012134228A2
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- WIPO (PCT)
- Prior art keywords
- tissue
- fabric
- fabric layer
- weave
- double
- Prior art date
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Classifications
-
- 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
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
-
- 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
-
- 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
-
- 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
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
-
- 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
-
- 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
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D33/00—Multiple looms, i.e. two or more looms assembled together, whether or not they have mechanisms in common
-
- 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
-
- 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
- B60R2021/23533—Inflatable members characterised by their material characterised by the manufacturing process
- B60R2021/23542—Weaving
-
- 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
Definitions
- the present invention relates to a part double fabric by a gas in which two separate fabric layers are woven at the same time in an integrated weaving method (OPW, One Piece Woven), and more particularly, a gas having excellent utility in an airbag or a life jacket for a vehicle. It relates to a fabric having a part property.
- OHPW One Piece Woven
- Fabrics with parts can be used for automotive airbags, life vests, etc.
- the side curtain type airbags in which the curtain-type airbags are unfolded in the side windshields of the vehicle for the purpose of preventing the driver's or passenger's head from being injured by the windshield or the side structure of the vehicle. Partial fabric is used.
- the side curtain type airbags should be inflated for at least 5 seconds or more while the car is rolled to protect passengers safely in an accident, in which case a fabric with a part is useful.
- the method of manufacturing products having air component characteristics such as vehicle air bags is to use two fabrics by sewing, fusion or bonding, and two layers of fabrics separated by one-piece weaving (OPW, One Piece Woven) at the same time.
- Weaving is distinguished by the use of double fabrics in which the two layers of fabric are partially joined by a tie point.
- the method of sewing two fabrics, fusing them by heat or ultrasonication, or bonding them with an adhesive to manufacture pneumatic products separates the fabric after fabricating two layers of fabric.
- a process, a fusion process, or an adhesion process is required, resulting in a complicated process and an increase in manufacturing cost.
- an air part product such as an air bag using a double fabric having the second air part property
- Fabrics with component parts by air have a junction between the two separate layers and the two layers.
- a fabric having a system closed by a junction point serves to firmly bind the two layers when each single layer expands rapidly by air or the like, and there should be no outflow of gas in the portion where the two layers follow.
- 3X3 basket weaving or 2X2 basket weaving is mainly used as the structure of the seam in double fabric.
- the non-expansion portion bounded by the stitching portion is to support the inflation portion, two layers of the double-woven fabric separated around the junction point is maintained, or a plain weave tissue or the like was generally used.
- the double fabric is a one-piece weaving method (OPW, One
- the present invention is an integral weaving method (OPW, One Piece Woven) is composed of two different fabrics, while weaving two separate fabric layers at the same time, different structure, improve the excellent pressure-resistance characteristics, durable double-component double fabrics with excellent stability and stability To provide.
- OW One Piece Woven
- the present invention also provides a method for producing a partary double fabric by the gas.
- the present invention also provides a vehicle airbag manufactured by including the two-component double fabric by the gas.
- the present invention has a top and bottom fabric layer woven at the same time and separated from each other It is provided a gaseous double fabric with a gas comprising a double weave pattern structure composed of different tissues from each other.
- the present invention also provides a partary double fabric by means of weaving at the same time in one piece weaving (OPW, One Piece Woven) and weaving the top and bottom fabric layers separated from each other into a double weave pattern structure to be a different structure from each other. It provides a method for producing.
- OW One Piece Woven
- the present invention also provides a vehicle airbag manufactured including the part-part backing fabric by the gas.
- the inventors have found that in a unitary weaving manner, the two separate fabric layers simultaneously woven in a one-piece weaving (OPW, One Piece Woven) in a gaseous part-sewn fabric include a double-woven pattern structure composed of different tissues from each other.
- OW One Piece Woven
- Partial double fabric by such a gas can be effectively applied to a vehicle airbag or life jacket.
- a two-part double woven fabric which comprises a double woven pattern structure, wherein the top and bottom fabric layers woven simultaneously and separated from each other are composed of different tissues from each other.
- Partial double fabric by the gas of the present invention so that the fabric structure of the upper upper layer to be woven at the same time to be configured differently so that the left and right or top and bottom directions of the product can be easily distinguished with the naked eye without any additional process, layer striking such as air bag
- the manufacturing process can be made more efficient, and a phenomenon in which an operator makes an error in checking the orientation of the product left and right or up and down can be remarkably improved.
- the present invention includes an inflated portion having a component part by a gas, an unexpanded portion for supporting the inflated portion, and a joining portion forming a boundary between the inflated portion and the non-expanded portion, the inflated portions being woven simultaneously and separated from each other.
- a double fabric comprising a top and bottom fabric layer, wherein the inflation portion is to provide a partary double fabric by means of a gas comprising a double weave pattern tissue in which the top and bottom fabric layers being woven simultaneously are composed of different tissues from each other.
- a gas comprising a double weave pattern tissue in which the top and bottom fabric layers being woven simultaneously are composed of different tissues from each other.
- double weave pattern texture in the part-component double fabric by the gas, as shown in Figures 8 to 10, weaved into the same tissue in a position where the top and bottom fabric layers which are woven at the same time and separated from each other are bowed to each other. It is meant a fabric pattern tissue that is configured to be composed of different tissues, rather than being different, wherein the double weave pattern tissue may be all or part of each fabric layer tissue in a position where the top and bottom fabric layers correspond to each other. .
- the tissue of the upper and lower fabric weaves in the gaseous part-divided fabric may include 1 ⁇ 1 tissue, 2 ⁇ 2 tissue, 3 ⁇ 3 tissue, runner, hard rib, weave rib, or a combination thereof.
- Double weave pattern tissue in the present invention is the top fabric layer and bottom fabric layer As long as it is composed of different fabric tissues at positions corresponding to each other, it can be applied in various ways.
- the double weave pattern tissue is composed of the tissue of the upper fabric layer is 1X1, the tissue of the lower fabric layer is composed of the tissue of 3X3, runner, hard rib, weave rib, or a combination thereof of 2X2;
- the tissue of the upper fabric layer is 2X2, and the tissue of the lower fabric layer is composed of 1X1 tissue, 3X3 tissue, runner, hard rib, weave, or combination thereof;
- the tissue of the upper fabric layer is 3X3, and the tissue of the lower fabric layer is composed of 1X1 tissue, 2X2 tissue, runner, hard rib, weave, or a combination thereof;
- the tissue of the upper fabric layer is the main job, and the tissue of the lower fabric layer is composed of 1X1 tissue, 2X2 tissue, 3X3 tissue, hard rib, weave rib, or a combination thereof;
- the double weave pattern tissue can be applied so that the upper surface and the lower surface are composed of different tissues.
- one side of the top or bottom fabric layer may be 1x1, and the other side may be 2X2 or 3X3.
- the double-woven pattern structure in the gas-component double fabric of the present invention is 0.01% to 60%, preferably 0.05% to 50%, more preferably 0.1 to the total area of the upper and lower fabric layers separated from each other 3 ⁇ 4 to 40%, more preferably 0.3% to 35%.
- the double weave pattern tissue may be included as 0.01% or more with respect to the total area of the upper and lower fabric layers separated from each other, In the weaving process can be included in less than 60% in terms of maintaining tension and weaving efficiency optimized.
- La and lb are cross sectional views of the tissue forming the double fabric of the present invention.
- the double fabric of the present invention is a layer separating portion (A, B) consisting of two fabric layers separated from each other, and a junction point (C) for joining the two fabric layers separated from each other It consists of.
- the double-woven fabric with air component of the present invention uses a jacquard weaving machine to simultaneously weave two plain weaving layers (A and B in Figs. La-2b) separated from each other on a weaving machine, and contact the two fabric layers.
- the connecting joint (C in la-2b) is woven.
- the two fabric layers are woven at the same time is composed of a different structure of the upper and lower fabric layers, for example, 1X1 plain weave (Fig. 3), 2X2 basket weave (Fig. 4), 3X3 basket weave, runner weave ( 5), a hard rib or a weave rib (FIG. 6), or one or more of them, including a woven fabric can be woven.
- the fastening part is 2X2 basket weave (FIG. 4), 3X3 basket weave, 3X3 basket weave, runner (FIG. 5), light rib and weave rib (FIG. 6), or partial weaving of plain weave double weave (FIG. 7) Or may be woven including one or more combinations thereof.
- the fabric layer of the present invention is intended primarily for the part-by-gas component, and in particular, the joining portion prevents the gas that generates the part from escaping between two separate fabric layers and withstands the pressure of the expanding gas. do.
- the fabric including the tissue that is joined to the tissue separated into the upper layer and the lower layer may be divided into a layered tissue (A, B in Fig. La-2b) and a connecting tissue (C in Fig. La-2b).
- the external tissue of the region closed by the layered tissue B of FIGS. 2A and 2B
- the connective tissue C of FIGS. La-2b
- the region closed by the connective tissue It has a structure in which the space is divided into three regions which are irrelevant to component parts such as (A of FIGS. 2A and 2B).
- the left delamination part (A) tissue located on the left side and the right delamination part (B) tissue located on the right side are shown in FIGS. 8, 9, and 10 in FIGS. La and lb.
- the left and right delamination portions are separated by the junction (C) tissue.
- Inflated part having a part property by the gas of this invention is integral woven It comprises two separate layers of fabric which are woven in one piece (OPW, One Piece Woven), and can be woven in a double weave as indicated by B in FIGS. La and lb above.
- the two separate layers of fabric that are woven at the same time in the expansion part having a part by the gas is applied to the pattern structure as shown in Figure 8, 9, 10, etc., double fabric composed of different structures This can be
- the joining portion joins an expansion part having a part property by a gas composed of a double weave and borders the non-expansion part.
- the stitching portion partially stitches around the two fabric layers separated from each other in a single woven fabric so that the expandable part having a part is sealed by the gas.
- connection part (C) refers to two separate fabric layers of the delamination portions (A, B), wherein the inclination of the upper layer forms the weft and tissue points of the lower layer,
- the slope of the bottom layer forms a tissue point, or the slope of the bottom layer forms a weft and tissue point of the top layer, or the weft of the bottom layer forms a slope and a tissue point of the top layer.
- the organization that makes these connections is called the connection organization, and when the connection organization appears in dots, it is called the connection point.
- connection point When the connection organization appears in a line, it is called the connection line, and when the connection organization appears in the plane, it is called the connection surface.
- Connection and connection surface are called connection parts.
- the tissue point refers to a portion that allows the warp and weft cross each other up and down to form a fabric.
- the upper and lower fabric layers of the inflated portion is 1X1 tissue (FIG. 3), 2X2 tissue (FIG. 4), 3X3 tissue, runner weave (FIG. 5), rigid rib weave (FIGS. 6A-6C), Weave ribs (FIGS. 6D-6F), or a mixed fabric thereof can be used.
- the rib ribs and weave ribs are all four in the oblique or weft direction It may be one having the above width.
- tissues of 2X2, 3X3, or 4X4 such as (a) to (c) of FIG. 6, may be used, and as the weave ribs of FIGS. 6 (d) to (f) You can use 2X2, 3X3, or 4X4.
- the present invention is efficient in the manufacturing process in the manufacture of the final product for the layered layer, such as an air bag, and also by strengthening the cohesion through the connection portion and the non-expansion portion to suppress the air leakage phenomenon when the layer separation portion is expanded in the air can do.
- the seam prevents the gas that generates the part from escaping between the two separate fabric layers and serves to withstand the pressure of the expanding gas.
- the joining portion joins the expandable part having a part property by a gas formed of a double weave and borders the non-expanded portion.
- the stitching portion may partially entangle the periphery of the two fabric layers separated from each other in a single fabric so that the expandable portion having the component part is sealed by the gas.
- the texture of the splice can be 2X2 basket weave (FIG. 4), 3X3 basket weave, runner weave (FIG. 5), rigid rib weave (FIGS. 6A-6C), weave ribs (FIGS. 6D-6F), or portions of double fabric. Conjoint woven fabric (FIG. 7), or one or more combinations thereof.
- the airtight portion is formed more firmly during air inflation, and effectively suppresses the external discharge of air to more effectively prevent air from escaping from inside the bag. Can be.
- the non-expansion portion for supporting the expansion portion in the gaseous double fabric may include a double fabric portion and a partial joint portion partitioning it.
- a partial joint portion that cross-engages the non-expanded tissue of the double fabric stepwise, when the double fabric is inflated by air, the gas can escape stepwise in the non-expanded portion, so that the gas flows out of the spun portion. It is possible to prevent the phenomenon as much as possible and to improve physical properties such as pressure resistance performance.
- the non-expansion part is a double fabric layer comprising two fabric layers separated from each other and the structure of 1X1 (Fig. 3), the structure of 2X2 (Fig. 4), the structure of 3X3, the main fabric (Fig. 5), Steps may be cross-bonded stepwise to form a partial bond with a tissue selected from the group consisting of a hard rib weave (FIGS. 6A-6C), a weave rib (FIGS. 6D-6F), and one or more combinations thereof.
- a tissue selected from the group consisting of a hard rib weave (FIGS. 6A-6C), a weave rib (FIGS. 6D-6F), and one or more combinations thereof.
- the type of yarn material such as plain weave, double weave, single weave, and partially woven weave used in the production of the double weave is not particularly limited, but preferably nylon 66, polyethylene terephthalate (PET), polypropylene and It is preferably any one selected from the group consisting of polyesters.
- the present invention may include a resin coating layer coated on the surface of the double fabric having air component properties in order to lower the amount of air discharged.
- the resin used for the coating may be a resin commonly used for fiber coating, it is preferable to include a silicone resin, urethane resin, or a mixture thereof, the silicone resin coating is more airtight and maintain strength when developing desirable.
- the resin coating is to effectively fill the gap of the double fabric fabric, it can be carried out on one or both sides of the fabric surface.
- the conventional coating method can be performed by the knife coat method, the doctor blade method, the spray coating method, etc.
- the knife coat method is used.
- the coating can be carried out a multi-stage coating to perform a plurality of coatings.
- the undercoat and the topcoat are combined with the multi-step coating, not only the airtightness is improved but also the thickness of the fabric is reduced compared to the coating amount, thereby improving the flexibility effectively.
- the coating is preferably carried out twice by undercoating and topcoating twice on the same surface of the fabric surface.
- the preferred coating amount of the resin is 30 g / n to 150 g / m 2 It is good. If the coating amount is less than 30 g / itf, the air bag has a lot of air flow and cannot be swollen for more than 5 seconds at a constant pressure after deployment. In addition, when the coating amount exceeds 150 1, the airbag becomes too thick to deteriorate storage capacity, and the airbag may not come into contact with the structure when the airbag is deployed.
- the double fabric of the present invention it is very important for the airtightness to minimize the elongation by enduring the tensile force by high pressure air or the like.
- the method of forming the tissue at the point where the two layers separate or at the start of the stitching as described above is the most important factor in the design of fabrics with component parts by gas.
- the double fabric of the present invention uses a plain weave with high resistance to external tension as the fabric layer, and at the same time weaving the upper and lower fabric layers of the woven inflated portion in different tissues, this problem can be solved.
- the cover factor values of the upper and lower fabric layers woven at the same time in the inflated portion may further improve the airtightness of the air bag by high density weaving of 1,900 or more according to the following formula (1).
- the cover factor is less than 1,900, the air may be easily discharged to the outside when inflating.
- the top or bottom fabric layer and the warp density and the weft density are respectively 80 or less or 40 or 80 or more, preferably 75 or less or 45 or 75 or more, more Preferably no greater than 72 bones / inch or between 49 and 72 bones / inch.
- Weaving density, ie, warp density and weft density, of the 3 ⁇ 4 window fabric layer may be less than 80 bones / inch in terms of weaving production efficiency.
- the fineness of the yarn in the upper and lower fabric layers of the inflation portion may be 150 to 900 denier, preferably 170 to 870 denier, more preferably 210 to 840 denier.
- the fineness may be 150 denier or more in terms of fabric strength, and 900 denier or less in terms of weaving production efficiency.
- the average thickness of the fabric surface of one fabric layer constituting the double fabric measured by the American Society for Testing and Materials Standard ASTM D 1777 method is 0.65 mm 3 or less, or preferably 0.1 to 0.65 mm. 0.60 mm or less, or 0.15 to 0.60 mm, more preferably 0.55 mm or less, or 0.15 to 0.55 mm, more preferably 0.5 mm or less, or 0.2 to 0.5 mm have. If the average thickness of the fabric surface of the one fabric layer exceeds 0.65 mm may be a problem that is difficult to store when used as a vehicle airbag.
- the component double fabric by the gas has a value of less than 3.5 kgf or 0.1 to 3.5 kg, preferably 3.3 kgf or less 0.15 to 3.3 measured by the American Society for Testing and Materials Standard ASTM D 4032 circler band method kgf, more preferably 3.0 kgf or less, or 0.15 to 3.0 kgf, more preferably 2.0 kgf or less, or 0.2 to 2.0 kgf.
- the speech there is a problem that even if it exceeds 3.5 kgf 'are not deployed to its normal shape by using air pressure to the airbag.
- the tensile strength of one fabric layer constituting the inflation part in the gas-based double fabric is 1,000 N / 5 cm or more, preferably 1,300 N / 5 cm or more, more preferably 1,500 It can be more than N / 5cra.
- the tear strength of the upper and lower fabric layers may be 50 N or more, preferably 60 N or more, and most preferably 70 N or more.
- Tensile strength and tear strength of the fabric layer may be more than 1,000 N / 5 cm and 50 N or more in terms of maintaining the shape of the air bag does not burst when the air bag made of the fabric is deployed.
- the cut elongation of one fabric layer constituting the inflation portion, ie, the top and bottom fabric layers may be 15% to 60%, preferably from 573 ⁇ 4, more preferably 20% to 55%.
- the cutting elongation may be 15% or more in terms of maintaining the shape of the airbag without breaking the fabric by absorbing a part of the energy when the airbag made of the fabric is deployed, and 60% or less in terms of securing excellent pressure resistance.
- One fabric layer constituting the inflation portion that is, the bar strength of the upper and lower fabric layers may be at least 500 N / 5cm, preferably at least 600 N / 5cm, more preferably at least 700 N / 5cm.
- the bark strength may be 500 N / 5 cm or more in terms of maintaining the shape of the airbag without the rupture of the joint of the fabric by deploying the airbag made of the fabric.
- the initial maximum pressure is 40 KPa or more and 6 seconds later.
- the holding pressure is 25 KPa or more, it can function as a side curtain type airbag.
- the joint In order to prevent rupture when the side curtain type airbag is deployed due to the actual high temperature and high pressure inflated, the joint (FIG. 1C) is measured at least 500 N when the bar strength is measured by the ASTM D 5822 method. Can be greater than / 5era.
- the elongation at break according to the ASTM D 5822 method can be 50% or less.
- side curtain type airbags have a relatively large amount of coating compared to general airbags, it is very important to maintain the strength when the fabric is worn due to vibration of the vehicle in order to function as a side curtain type airbag even after a long period of time. .
- the internal pressure of the airbag can be measured using a device as shown in FIG.
- the first solenoid valve is opened by a computer to adjust the nitrogen gas in the secondary tank up to 25 bar.
- the first solenoid valve is closed, the second solenoid valve is opened by the computer, and the compressed nitrogen gas layered at 25 bar pressure in the secondary tank is momentarily maintained in the atmospheric air bag.
- the initial maximum pressure inside the airbag is measured by the pressure sensor, and the measurement results are transferred to the computer. After a few seconds, the pressure is measured again and recorded by the computer.
- the double fabric of the present invention meets the above conditions and is injected at an instantaneous pressure of 25 bar, the initial maximum pressure is 40 KPa or more, the internal pressure after 6 seconds is 25 KPa or more, and the bark strength of the joint is 500 N / 5 cm or more, and the elongation at break may be 50% or less.
- another embodiment of the present invention provides a method for producing a partary double fabric by the gas in an integral weaving method (OPW, One Piece Woven).
- Method for producing a partary double fabric by the gas of the present invention is a unitary weave Weaving at the same time (OPW, One Piece Woven) may comprise the step of weaving a double weave pattern tissue so that the top and bottom fabric layers separated from each other to be a different structure from each other.
- the method for producing a two-part double fabric by the gas is integrally woven into the expansion portion having the component part by the gas, the non-expansion portion for supporting the expansion portion, and the joint forming the boundary between the expansion portion and the non-expansion portion.
- the inflated portion is composed of a double fabric comprising a top and bottom fabric layer separated from each other, and the top and bottom fabric layers being woven at the same time in the inflated portion different tissue This may include the step of weaving into a double weave pattern tissue.
- the upper and lower fabric layers of the expanded portion can be simultaneously woven into different tissue forms, so that the pattern structure as shown in FIGS. 8, 9, and 10 can be applied. have.
- the double weave pattern tissue may be woven so that all or part of each fabric layer tissue is different in the position where the fabric layers of the upper and lower surfaces correspond to each other.
- the upper and lower fabric layers in the gaseous part double fabric can be woven in the form of 1 ⁇ 1 tissue, 2 ⁇ 2 tissue, 3X3 tissue, runner, hard rib, weave, or a combination thereof.
- the double weave pattern tissue may be woven in various forms of fabric tissue as long as the top fabric layer and the bottom fabric layer are composed of different fabric tissues at positions where the top fabric layer and the bottom fabric layer are facing each other.
- the double weave pattern tissue is the tissue of the upper fabric layer is 1X1, the tissue of the lower fabric layer is woven into 2X2 tissue, 3X3 tissue, runner, hard rib, weave rib, or a combination thereof;
- the tissue of the upper fabric layer is 2X2, and the tissue of the lower fabric layer is woven into 1X1 tissue, 3X3 tissue, runner, hard rib, weave, or a combination thereof;
- the tissue of the upper fabric layer is 3X3 tissue, and the tissue of the lower fabric layer is woven into 1X1 tissue, 2X2 tissue, runner, hard rib, weave, or a combination thereof;
- the fabric of the upper fabric layer is the main job, the fabric of the lower fabric layer is 1X1 organization, the 2X2 organization, the 3X3 organization, the rigid fabric, Wea
- the double weave pattern tissue may be woven by applying a different tissue configuration by changing the top and bottom surfaces.
- one side of the top or bottom fabric layer may be 1x1, and the other side may be 2x2 or 3x3.
- the part double fabric by the gas of the present invention is 0.01% to 60%, preferably 0.05% to 50%, more preferably 0.1 to the total area of the upper and lower fabric layer separated from the double weave pattern tissue % To 40%, more preferably 0.3% to 35% may be woven to include.
- the double weave pattern tissue is to be woven to include at least 0.01% of the total area of the top and bottom fabric layers separated from each other. It can be woven to include less than 603 ⁇ 4 in terms of maintaining the tension and weaving efficiency optimized in the weaving process.
- the crimp rate when weaving the expanded portion is 1% to 103 ⁇ 4, preferably
- the crimp rate is less than 1%, the elongation of the fabric is too low, and the airbag cushion may rupture because it does not absorb energy sufficiently during airbag deployment. In addition, when the crimp rate exceeds 10%, the elongation of the fabric is too high, the gas inside the cushion during the deployment of the air bag can escape the pressure-resistant maintenance rate significantly.
- the weaving tension can be 30 to 550 cN, preferably 40 to 530 cN, more preferably 50 to 500 cN.
- the weaving tension is less than 30 cN, the phenomenon that the inclined injection is caused by gravity may occur and the weft of the weft thread may not be smooth.
- the weaving tension exceeds 500 cN and the force applied to the inclination is too large. Yarn Breaking problems can occur.
- the "weaving efficiency of the double fabric of the present invention reflects all loss caused by the interruption of the production in the weaving plant operation, illustrating the first operation rate ( « per hour of weaving machine.
- the weaving efficiency was applied
- the type and yarn of the yarn may vary depending on various variables such as thickness, weaving type, weaving, plain weave, basket weave, etc.
- the double weave pattern tissue is applied as in the double weave of the present invention, the top and bottom fabric layers are separated from each other. While weaving at the same time to be a different structure to each other, there is an advantage that can maintain an excellent weaving efficiency.
- the double-component fabrics based on the present invention weaving efficiency of 70% or more or h to 99%, preferably 75% or more or 75% to 99%, more preferably 80% or more, or 80% to 99% can be maintained. Case, there is mass productivity is lowered may cause unprofitable problem, it is the weaving efficiency of the double fabric is preferably kept above 70%.
- the present invention provides a vehicle airbag manufactured by including the two-component double fabric by the gas.
- the airbag is a curtain airbag.
- the airbag is coated with a resin coating layer on one side of the double-component fabric by the gas, and drying it; And it may be prepared by a manufacturing method comprising the step of coating a resin coating layer on the other side of the part double fabric by the gas and drying it.
- the double fabric having the gaseous component of the present invention described above can suppress the air leakage during inflation as much as possible can be usefully used for vehicle airbags, life vests, shock absorbers and the like.
- the double fabric of the present invention does not require sewing, thereby simplifying the manufacturing process of the final product, thereby reducing the manufacturing cost.
- the double fabric having the gaseous component of the present invention can be easily distinguished from the front, rear, left and right or top and bottom of the final product by applying different top and bottom surfaces separated from each other by the naked eye, to identify the individual products individually There is no need for separate inspection and additional processes such as marking or marking, which can significantly improve process efficiency. have.
- a component duplex fabric by means of a gas composed of different tissues in a position where two separate fabric layers simultaneously woven in an integral weaving manner are opposed to each other, and a vehicle airbag manufactured comprising the same.
- Partial double fabric by the gas maintains excellent mechanical properties and pressure resistance performance even in an integrated weaving manner, and can effectively produce a front and rear and right and left airbag cushion without additional processing.
- the double fabric of the present invention does not need to be sewn and does not perform an additional process such as marking the final product one by one, and can simplify the manufacturing process of the final product, thereby making it possible to reduce the manufacturing cost.
- the component double fabric of the gas of the present invention can be very preferably used for the production of vehicle airbags and the like.
- La and lb are cross-sectional schematic diagram of the tissue forming a double fabric according to an embodiment of the present invention.
- Figures 2a and 2b is a schematic cross-sectional view of the double-woven fabric with air component according to an embodiment of the present invention inflated by air.
- Figure 3 is a schematic view (a) and a cross-sectional schematic diagram (b) of the 2X2 basket weave constituting the connection portion according to an embodiment of the present invention.
- Figure 4 is a tissue pattern consisting of a double woven fabric of plain weave double weave and 2X2 basket weave constituting the joint according to an embodiment of the present invention) and a cross-sectional schematic diagram (b) thereof.
- Figure 5 is a schematic view (b) of the cross-sectional structure (a) and the tissue pattern of the main body constituting the joint according to an embodiment of the present invention.
- FIG. 6 is a complete organization chart (a) to (c) of the rigid rib weave constituting the junction according to an embodiment of the present invention and the complete organization chart (d) to (f) of the weave rib.
- FIG. 8 is a cross-sectional schematic diagram of the top surface having a tissue pattern (a) of two separate fabric layers and a 2 ⁇ 2 basket weave, consisting of a separate double weave according to Example 1 of the present invention (b), a cross section of a bottom having 1 ⁇ 1 plain weave Schematic diagram (c) and cross-sectional schematic diagram of the fabric layer including the top and bottom surfaces of different tissues (d).
- Fig. 9 is a schematic cross-sectional view of the upper surface having a tissue pattern (a) of two separate fabric layers and a 3 ⁇ 3 basket weave consisting of a separate double weave according to Example 2 of the present invention (b), a cross section of a bottom having 1 ⁇ 1 plain weave Schematic diagram (c) and cross-sectional schematic diagram of the fabric layer including the top and bottom surfaces of different tissues (d).
- Figure 10 is configured as a separate yijungjik according to a third embodiment of the invention, the two weave patterns of the separate fabric layers (a) and a schematic cross-sectional view of the upper surface having a 3X3 basket weave (b), the lower surface having a 2X2 basket weave Cross-sectional schematic of (c), and cross-sectional schematic of the fabric layer including the upper and lower surfaces of different tissues (d).
- FIG. 11 is a cross-sectional schematic diagram (b) of the top and bottom surfaces having the same texture of two separate fabric layers (a) and 1 ⁇ 1 plain weave, composed of separate double weaves according to Comparative Example 1 of the present invention, and the same structure (D) Schematic of the cross section of the fabric layer, including the top and bottom of the fabric.
- FIG. 12 is a schematic view showing an apparatus for measuring the internal pressure of an airbag according to an embodiment of the present invention.
- FIG. 13 is a photograph of a duplex fabric comprising a double weave pattern tissue in which the top and bottom surfaces are composed of different tissues of 2 ⁇ 2 basket weave and 1 ⁇ 1 plain weave, respectively, in accordance with Example 1;
- Figure 14 is a photograph showing a double fabric consisting of a 1X1 plain weave tissue both the upper and lower sides in accordance with Comparative Example 1.
- A left lamella tissue
- B right lamella tissue
- Example 1
- a gaseous double fabric was produced by using one piece woven (OPW) in a jacquard loom using 420 denier polyamide multifilament as warp and weft yarns.
- the junction point (C) is woven with 20 yarns to be composed of 2X2 basket structure as shown in Figure 4, the tissue of the left non-expansion layer separation portion (A) based on the junction portion (C) is shown in FIG.
- the double weave and the 2X2 basket organization are composed of partial weave, which cross-joins in stages.
- the swelling part tissue of the right delamination part (B) based on the junction point (C) is composed of a 2X2 basket weave and a 1X1 plain weave tissue as shown in Figs. It was made.
- the inflated portion was manufactured in the form of a double weave patterned tissue composed of different tissues of 2 ⁇ 2 basket weave and 1 ⁇ 1 plain weave, respectively, as shown in the cross section of FIG. 8D.
- weaving the expanded portion crimp (crimp) was 8%, weaving tension was applied at 50 cN.
- the double weave pattern tissue composed of the upper surface and the lower surface is applied to the part corresponding to about 5) of the total area of the inflation portion, and the top and bottom fabric layers of the inflation portion are respectively inclined density 57 bone / inch, weft density 49 bones / inch.
- a double-sided coating was applied on both sides of the double-woven fabric thus fabricated with a silicone resin of 95 g / m 2 so as to prevent the outflow of air through a junction point, that is, a tissue point, to form a separate two layer.
- Example 1 wherein the inflation portion in the form of a tissue pattern as shown in Figure 9a in the form of a double weave pattern tissue consisting of 3X3 basket weave and 1X1 plain weave tissue as shown in Figures 9b and 9c respectively
- the double fabric was woven.
- the inflated portion was made in the form of a double fabric having a different structure of 3X3 basket weave and 1X1 plain weave, respectively, as shown in the cross section of FIG. 9D.
- the inflation portion tissue in the form of a double weave pattern tissue consisting of 3X3 and 2X2 basket weave tissue as shown in Figs.
- the double fabric was woven.
- the inflation portion was made in the form of a double fabric having different textures in the top and bottom surfaces of the 3X3 and 2X2 baskets, respectively, as shown in the cross-sectional view of FIG. 10D.
- the woven fabric is woven double fabric so that the upper and lower sides of the inflation tissue is composed of 1X1 plain weave tissue, such as lib in the same tissue pattern as in Figure 11a.
- the inflation portion was manufactured in a form including a double fabric having both the top and bottom surfaces having the same structure as 1 ⁇ 1 plain weave.
- both sides of the woven duplex fabric are each coated with 95 g / m 2 of silicone resin in a conventional manner to prevent air from flowing through the joint point, or tissue point, that forms a separate two layer. Treated.
- the change of the internal pressure of the airbag was observed over time after the airbag was deployed by instant injection of 25 bar of nitrogen compressed gas into the air. Since the operation is preferably controlled electronically to minimize the error, the electronic control device is used for the injection and blocking of the air.
- Weaving efficiency is a function value that reflects all losses incurred as a result of interruption of production during the operation of the weaving plant. The average value was measured and expressed as an hourly operating rate of zero. Measurement results of physical properties of the woven fabric by the gas according to Examples 1 to 3 and Comparative Examples 1 to 3 are as shown in Table 1 below.
- the two-part separated fabrics of the expanded part in accordance with the present invention consists of a different structure of the two-part fabric by the gas of Example 1, the front and back of the cushion evenly with the naked eye It can be seen that this is clearly distinguished.
- the double-component fabrics by the gas of Examples 1 to 3 according to the present invention has a stiffness of 1.3 to 1.4 kgf, the thickness of one fabric layer is 0.37 to 0.38 mm 3,
- the barn strength is 1,470 to 1 ⁇ 537 N / 5cm, and it can be seen that it has excellent folding property with excellent mechanical properties.
- the double-component fabric by the gas of Examples 1 to 3 has an initial maximum internal pressure of 110 to 114 KPa at 25 bar instantaneous pressure injection, and a measured internal pressure after 6 seconds is 62 to 65 KPa, thereby maintaining a very good internal pressure. Its performance shows that it can be effectively used in car airbags or life jackets.
- Comparative Examples 2 and 3 are composed of basket fabrics of 2x2 and 3x3, which have the same structure on both the top and bottom surfaces, so that the fabric layer thickness and stiffness are increased, and the folding property is difficult, so that it can be difficult to store when used as a vehicle airbag. When air pressure does not develop in the normal form, it may cause a problem in securing safety such as passenger protection.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Woven Fabrics (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280027014.1A CN103582726B (zh) | 2011-03-31 | 2012-03-30 | 气体可膨胀的双层织物及其制造方法 |
JP2014502482A JP2014514470A (ja) | 2011-03-31 | 2012-03-30 | 気体による膨張性二重織物およびその製造方法 |
EP12765287.3A EP2692920A4 (en) | 2011-03-31 | 2012-03-30 | TWO-LAYER AIR-INFLATABLE FABRIC AND MANUFACTURING METHOD THEREFOR |
US14/008,983 US20140021705A1 (en) | 2011-03-31 | 2012-03-30 | Gas-inflatable double-layered fabric and a preparation method thereof |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20110029865 | 2011-03-31 | ||
KR10-2011-0029865 | 2011-03-31 | ||
KR1020120033106A KR20120112219A (ko) | 2011-03-31 | 2012-03-30 | 기체에 의한 부품성 이중직물 및 그의 제조 방법 |
KR10-2012-0033106 | 2012-03-30 |
Publications (2)
Publication Number | Publication Date |
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WO2012134228A2 true WO2012134228A2 (ko) | 2012-10-04 |
WO2012134228A3 WO2012134228A3 (ko) | 2012-12-06 |
Family
ID=47282507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/KR2012/002398 WO2012134228A2 (ko) | 2011-03-31 | 2012-03-30 | 기체에 의한 부품성 이중직물 및 그의 제조 방법 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20140021705A1 (ko) |
EP (1) | EP2692920A4 (ko) |
JP (1) | JP2014514470A (ko) |
KR (1) | KR20120112219A (ko) |
CN (1) | CN103582726B (ko) |
WO (1) | WO2012134228A2 (ko) |
Cited By (1)
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CN105517853A (zh) * | 2013-09-03 | 2016-04-20 | 可隆工业株式会社 | 气囊及其制造方法 |
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DE102010048164B4 (de) * | 2010-10-13 | 2019-05-09 | Autoliv Development Ab | Airbag für ein Kraftfahrzeug |
EP2597180A1 (en) * | 2011-11-24 | 2013-05-29 | Autoliv Development AB | Improvements relating to air-bag fabrics |
BR112014019559B1 (pt) * | 2012-02-07 | 2022-02-01 | Toyobo Co., Ltd | Tecido revestido para airbag e processo para produção de tecido revestido para airbag |
JP5440967B1 (ja) * | 2012-05-11 | 2014-03-12 | 東洋紡株式会社 | ノンコートエアバッグ用織物 |
EP2757183B1 (en) * | 2013-01-21 | 2019-10-09 | Autoliv Development AB | Improvements in or relating to air-bags |
EP2930069B1 (en) * | 2014-04-07 | 2017-09-13 | Autoliv Development AB | Improvements in or relating to air-bags |
WO2015199444A1 (ko) * | 2014-06-24 | 2015-12-30 | 코오롱인더스트리 주식회사 | 에어백용 폴리에스테르 원단의 제조방법 |
US20180119320A1 (en) * | 2015-03-26 | 2018-05-03 | Natalie A. CANDRIAN-BELL | Inflatable Jacquard-Woven Textiles for Structural Applications |
KR102530837B1 (ko) | 2019-01-16 | 2023-05-11 | 주식회사 위니아 | 에어컨의 송풍 제어 장치 |
KR102473618B1 (ko) * | 2019-09-30 | 2022-12-02 | 코오롱인더스트리 주식회사 | 다중직물 |
CA3149662A1 (en) * | 2019-09-30 | 2021-04-08 | Kolon Industries, Inc. | Multi-layer fabric |
CN111005116A (zh) * | 2019-12-19 | 2020-04-14 | 江苏惠太汽车科技有限公司 | 一种一次成型安全气囊的方法及其制备的安全气囊 |
EP4130364B1 (en) * | 2020-03-26 | 2024-06-05 | Asahi Kasei Kabushiki Kaisha | Base cloth for material and manufacturing method therefor |
KR102584297B1 (ko) * | 2020-12-29 | 2023-10-05 | 코오롱인더스트리 주식회사 | 이중 직물 및 이를 포함하는 물품 |
US20240018701A1 (en) * | 2020-12-29 | 2024-01-18 | Kolon Industries, Inc. | Two layer fabric and articles comprising the same |
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- 2012-03-30 KR KR1020120033106A patent/KR20120112219A/ko not_active Application Discontinuation
- 2012-03-30 US US14/008,983 patent/US20140021705A1/en not_active Abandoned
- 2012-03-30 EP EP12765287.3A patent/EP2692920A4/en not_active Withdrawn
- 2012-03-30 CN CN201280027014.1A patent/CN103582726B/zh active Active
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CN105517853A (zh) * | 2013-09-03 | 2016-04-20 | 可隆工业株式会社 | 气囊及其制造方法 |
JP2016530160A (ja) * | 2013-09-03 | 2016-09-29 | コーロン インダストリーズ インク | エアバッグおよびその製造方法 |
US9656624B2 (en) | 2013-09-03 | 2017-05-23 | Kolon Industries, Inc. | Airbag and a preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
US20140021705A1 (en) | 2014-01-23 |
EP2692920A2 (en) | 2014-02-05 |
CN103582726A (zh) | 2014-02-12 |
JP2014514470A (ja) | 2014-06-19 |
WO2012134228A3 (ko) | 2012-12-06 |
KR20120112219A (ko) | 2012-10-11 |
EP2692920A4 (en) | 2014-12-10 |
CN103582726B (zh) | 2015-06-03 |
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