Filling Material

• US 20080193690A1
• Filed: 04/27/2006
• Published: 08/14/2008
• Est. Priority Date: 04/28/2005
• Status: Active Grant

• Current Assignee: Advansa BV (Haci Ömer Sabanci Holding AS)
• Original Assignee: Advansa BV (Haci Ömer Sabanci Holding AS)
• Inventors: Molina, Agostino, Musch, Jurgen
• Granted Patent: US 7,682,693 B2
• Time in Patent Office: Days
• US Class Current: 428/36.4
• CPC Class Codes: B68G 1/00 Loose filling materials for upholstery
• CPC Class Codes: D01G 9/06 by means of toothed members
• CPC Class Codes: Y10T 428/1372 Randomly noninterengaged or randomly contacting fibers, filaments, particles, or flakes
• CPC Class Codes: Y10T 428/2904 Staple length fiber
• CPC Class Codes: Y10T 428/2909 Nonlinear [e.g., crimped, coiled, etc.]
• CPC Class Codes: Y10T 428/2967 Synthetic resin or polymer

Abstract

A filling material for filling into articles of bedding and the like is presented and includes polyester fibres having an average dimension of 0.5 to 2.5 dtex and being coated with a slickener and crimped. The fibres have been cut to an average length of 4-15 mm and have subsequently been opened. In a method of forming a filling material a tow of slickened fibres of the above type is formed and crimped and is then cut to the above mentioned length. The cut fibres are then opened to form the filling material.

Claims

1. A filling material for filling into articles of bedding, the filling material comprising polyester fibres having an average dimension of 0.5 to 2.5 dtex and being coated with a slickener and crimped, the fibres being cut to an average length of 4-15 mm and opened.

2. A filling material according to claim 1, wherein the polyester fibres are opened to such a degree that the filling material has a bulkiness value of at least 160 mm.

3. A filling material according to claim 1, wherein the polyester fibres are opened to such a degree that the filling material has a bulkiness value of at least 180 mm, most preferably at least 200 mm.

4. A filling material according to claim 1, wherein the filling material has a work recovery value.

5. A filling material according to claim 1, wherein the polyester fibres have an average dimension of 0.8 to 2.0 dtex.

6. A filling material according to claim 1, wherein the filling material is essentially made of slickened polyester fibres.

12. An article of bedding wherein said article is at least partly filled with a filling material according to claim 1.

13. A filling material according to claim 2, wherein the polyester fibres are opened to such a degree that the filling material has a bulkiness value of at least 180 mm, most preferably at least 200 mm.

14. A filling material according to claim 2, wherein the filling material has a work recovery value, of less than 52%.

15. A filling material according to claim 3, wherein the filling material has a work recovery value, of less than 52%.

16. A filling material according to claim 2, wherein the polyester fibres have an average dimension of 0.8 to 2.0 dtex.

17. A filling material according to claim 3, wherein the polyester fibres have an average dimension of 0.8 to 2.0 dtex.

18. A filling material according to claim 4, wherein the polyester fibres have an average dimension of 0.8 to 2.0 dtex.

19. A filling material according to claim 2, wherein the filling material is essentially made of slickened polyester fibres.

20. A filling material according to claim 3, wherein the filling material is essentially made of slickened polyester fibres.

7. A method of producing a filling material for filling into articles of bedding and the like, the method comprising:

providing a tow of slickened polyester fibres, the fibres having an average dimension of 0.5 to 2.5 dtex,

crimping the fibres,

cutting the fibres to an average length of 4 to 15 mm, and

opening the fibres.

8. A method according to claim 7, wherein the opening of the fibres is carried out until the bulkiness value of the filling material is at least 160 mm.

9. A method according to claim 7, wherein the fibres are opened by being exposed to a surface being provided with protruding structures.

10. A method according to claim 7, wherein the fibres are opened by being exposed to a turbulent air stream.

11. device for manufacturing a filling material for filling into articles of bedding,

the device comprising

a first opening section comprising a first gap formed between a first rotating opening roller and an adjacent surface, the first opening roller being provided with protruding structures on its surface,

a first feeding device for feeding slickened and crimped polyester fibres having an average dimension of 0.5-2.5 dtex and an average cut length of 4 to 15 mm into the first gap,

a second opening section comprising a second gap formed between a second rotating opening roller and an adjacent surface, the second opening roller being provided with protruding structures on its surface,

a second feeding device for feeding partially opened polyester fibres from the first opening section into the second gap in which the fibres are opened by the second opening roller, and

a transporting device for transporting filling material from the second opening section to a storage.