Touch-and-close fastener part and method for producing a touch-and-close fastener part

• US 9,167,870 B2
• Filed: 07/20/2011
• Issued: 10/27/2015
• Est. Priority Date: 07/20/2010
• Status: Active Grant

• Current Assignee: Gottlieb Binder GmbH & Co. KG
• Original Assignee: Gottlieb Binder GmbH & Co. KG
• Inventors: Poulakis, Konstantinos
• Primary Examiner(s): Worrell, Danny
• Application Number:
  US13/137,091
• Publication Number:
  US 20120017404A1
• Time in Patent Office: 1,560 Days
• Field of Search: 661/69.R, 661/70, 661/90, 661/91, 661/94, 244/45, 244/42, 428/99, 428/100
• US Class Current: 1/1
• CPC Class Codes: A44B 18/0023 Woven or knitted fasteners
• CPC Class Codes: D04B 1/04 characterised by thread material
• CPC Class Codes: D04B 1/22 specially adapted for knitting goods of particular configuration
• CPC Class Codes: D10B 2401/10 porous
• CPC Class Codes: D10B 2501/0632 of the touch-and-close type
• CPC Class Codes: Y10T 24/2783 having filaments constructed from coated, laminated, or composite material
• CPC Class Codes: Y10T 24/2792 having mounting surface and filaments constructed from common piece of material
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A touch-and-close fastener part (32) includes a functional layer forming a backing surface and formed from a thread system with at least two line elements (12a-12d, 14a-14c) forming meshes (16a-16b″, 20a-20a″) and connected to one another. At least one further individual functional layer, formed and/or formable with connecting elements (30, 30″), is formed from a further thread system incorporated at least in individual sections into the thread system. The thread systems are connected to one another with the formation of passage sites (24a-24d) whose free cross-sectional area takes up more than 20% of the corresponding backing area.

Claims

1. A touch-and-close fastener part, comprising:

a first functional layer forming a backing surface formed from a first thread system having at least first and second line elements forming meshes and being connected to one another, said first thread system including a series arrangement of said first and second line elements that are adjacent to one another and that extend in a longitudinal direction, each of said first and second line elements forming a sequence of essentially identical meshes facing in a transverse direction without offsets relative to one another in the longitudinal direction, said meshes of at least one said first and second line elements extending at least one of through or around said meshes of an adjacent one of said first and second line elements, said meshes of adjacent ones of said first and second line elements having essentially same extensions in the longitudinal direction and in the transverse direction, said first thread system forming a pattern repeating at regular intervals in the longitudinal and transverse directions and being composed of identically arranged line elements; and

a second individual functional layer having connecting elements formed from a second thread system incorporated at least in individual sections of said first thread system, said first and second thread systems being connected to one another and having passage openings therethrough, said passage openings having free-cross-sectional areas making up more than twenty percent of an area of said backing surface.

2. A touch-and-close fastener part according to claim 1 wherein

said second thread system comprises at least one third line element extending in the longitudinal direction with a sequence of essentially identical meshes facing in the transverse direction, said at least one third line element being at least partially separated to form said connecting elements.

3. A touch-and-close fastener part according to claim 2 wherein

said at least one third line element follows a path of a corresponding one of said first line elements and is incorporated therewith via respective ones of said meshes.

4. A touch-and-close fastener part according to claim 1 wherein

said series arrangement alternates said first and second line elements, said meshes of said first line elements have a greater extension in the transverse direction greater than meshes of said second line elements.

5. A touch-and-close fastener part according to claim 1 wherein

said passage openings have parallelogram shapes.

6. A touch-and-close fastener part according to claim 5 wherein

said parallelogram shapes are one of diamond shapes, rectangular shapes, polygonal shapes and hexagonal shapes.

7. A touch-and-close fastener part according to claim 1 wherein

said functional layers are produced from isotactic polypropylene.

8. A touch-and-close fastener part according to claim 1 wherein

said line elements comprise at least one of monofilaments, multifilaments or yarns.

9. A touch-and-close fastener part according to claim 2 wherein

said connecting elements have at least one of interlocking heads or mushroom-shaped heads.

10. A touch-and-close fastener part according to claim 2 wherein

said connecting elements are arranged on one side of said second individual functional layer.

11. A touch-and-close fastener part according to claim 1 wherein

said first and second functional layers form an abrasive.

12. A method for producing a touch-and-close fastener part, comprising the steps of:

forming a first functional layer forming a backing surface formed from a first thread system having at least first and second line elements forming meshes and being connected to one another, said thread system including a series arrangement of said first and second line elements that are adjacent to one another and extend in a longitudinal direction, each of said line elements forming a sequence of essentially identical meshes facing in a transverse direction without offsets relative to one another in the longitudinal direction, said meshes of at least one of said first and second line elements extending at least one of through or around said meshes of an adjacent one of said first and second line elements, said meshes of adjacent ones of said first and second line elements having essentially same extensions in the longitudinal direction and in the transverse direction, said first thread system forming a pattern repeating at regular intervals in the longitudinal and transverse directions and being composed of identically arranged line elements; and

forming a second individual functional layer having connecting elements formed from a second thread system incorporated at least in individual sections of said first thread system, said first and second thread systems being connected to one another with passage openings therethrough, said passage openings having free-cross-sectional areas making up more than twenty percent of an area of said backing surface.

13. A method according to claim 12 wherein

at least one line element of said second thread system is separated and formed into connecting elements.

14. A method according to claim 13 wherein

respective ones of said meshes are clipped to form separated meshes;

and

free ends of said separated meshes are melted to form mushroom head-shaped thickenings.

15. A method according to claim 14 wherein

the free ends are melted by singeing.