Granted Patent B1

US 6,918,410 · App. 10/671,420 · Granted Jul 19, 2005

Assignee: Berger Seiba-Technotex Verwaltungs GmbH & Co.

Abstract

Claims (29)

1. A method for weaving airbag fabrics comprising partly single-ply portions and partly two-ply portions, said two-ply portions including a first ply and a second ply, the method comprising:

(a) interweaving warp threads furnished by a least two warp beams;

(b) producing the first ply with a warp thread band of an assigned first of said warp beams;

(c) producing the second ply with a warp thread band of an assigned second of said warp beams; and

(d) controlling the at least two warp beams for tension, each independently of the other.

2. The method as set forth in claim 1 , wherein said warp beams receive differing warp thread materials.

3. The method as set forth in claim 1 , further comprising implementing the method on a weaving machine fitted with a Jacquard machine.

4. A method for weaving fabrics on a weaving machine including a Jacquard machine, the method comprising:

(a) interweaving warp threads;

(b) creating an upper ply separately with a warp thread band of a first assigned warp beam;

(c) creating a lower ply separately with a warp thread band of a second assigned warp beam; and

(d) independently controlling tension of the warp beams.

5. A method for weaving fabric, said method comprising:

interweaving a warp thread from a first warp beam with a warp thread from a second warp beam;

producing an upper ply solely from said first warp beam;

producing an lower ply solely from said second warp beam; and creating a lower ply separately with a warp thread band of a second assigned warp beam; and

controlling a tension in said first wrap beam separately from said second warp beam.

6. The method according to claim 5 wherein said interweaving a warp thread from said first warp beam with a warp thread from said second warp beam includes interweaving a warp thread made of a first material from said fist warp beam with a warp thread made of a second material from said second warp beam, wherein said first material is different from said second material.

7. The method according to claim 5 , further comprising:

implementing said method on a weaving machine fitted with a Jacquard machine.

8. A method for weaving fabric on a weaving machine, the method comprising:

(a) interweaving warp threads delivered separately from at least two warp beams;

(b) producing an upper ply solely from a first of said warp beams and a lower ply solely from a second of said warp beams; and

(c) independently controlling tension of said warp beams.

9. The method according to claim 8 wherein said fabric is an automotive airbag fabric.

10. The method according to claim 8 wherein said weaving machine is a Jacquard machine.

11. The method according to claim 8 further comprising equaling tension over the full width of said fabric.

12. The method according to claim 8 wherein said warp threads of one of said beams are of a different material than that of the other of said beams.

13. The method according to claim 5 wherein said fabric is an automotive airbag fabric.

Assignments (9)

Priority Claims (1)

Continuity (1)