Method for the production of a laminate material for hook and loop closures

• US 20060180272A1
• Filed: 04/22/2005
• Published: 08/17/2006
• Est. Priority Date: 02/12/2005
• Status: Active Grant

• Current Assignee: Mondi Gronau GmbH (Mondi PLC)
• Original Assignee: Nordenia Deutschland Gronau GmbH (Mondi PLC)
• Inventors: Baldauf, Georg
• Granted Patent: US 8,303,759 B2
• Time in Patent Office: Days
• US Class Current: 156/290
• CPC Class Codes: A44B 18/0011 Female or loop elements A44B18/0007 takes precedence
• CPC Class Codes: A44B 18/0034 Female or loop elements A44B18/003 takes precedence
• CPC Class Codes: Y10T 428/23914 Interlaminar
• CPC Class Codes: Y10T 428/23957 Particular shape or structure of pile
• CPC Class Codes: Y10T 428/23964 U-, V-, or W-shaped or continuous strand, filamentary material
• CPC Class Codes: Y10T 428/23971 Continuous strand with adhesive bond to backing
• CPC Class Codes: Y10T 428/23979 Particular backing structure or composition
• CPC Class Codes: Y10T 428/23986 With coating, impregnation, or bond
• CPC Class Codes: Y10T 428/23993 Composition of pile or adhesive
• CPC Class Codes: Y10T 428/2481 including layer of mechanically interengaged strands, strand-portions or strand-like strips
• CPC Class Codes: Y10T 428/24826 Spot bonds connect components

Abstract

A method for the production of a laminate material for hook and loop closures, particularly for diaper closures, comprises laminating a textile material onto a carrier film having a surface structure that is suitable for forming a connection with the hooks of a hook and loop closure. The textile material is not connected with the carrier film over its entire area, and the textile material forming the cover layer of the laminate material is brushed after lamination.

Claims

1. A method for the production of a laminate material for hook and loop closures, comprising the following steps:

laminating a textile material onto a carrier film via an adhesive, said carrier film having a surface structure that is adapted for forming a connection with hooks of a hook and loop closure, wherein the textile material is not connected with the carrier film over its entire area; and

brushing the textile material after said step of laminating.

2. A method according to claim 1, wherein the carrier film, adhesive and the textile material pass through a pair of rollers in which the carrier film is pressed together with the textile material.

3. A method according to claim 1, wherein the adhesive is applied to the carrier film using a rotary printing method.

4. A method according to claim 1, wherein the carrier film and the textile material are connected on 20% to 80% of their areas.

5. A method according to claim 1, wherein the adhesive is applied to the carrier film in a pattern that has fields having adhesive areas and regions that are free of adhesive, and having field frames consisting of an adhesive film applied over an entire area.

6. A method according to claim 5, wherein the adhesive is applied to the carrier film, in the fields, in one or more of the following patterns:

dots, parallel stripes, intersecting stripes, or a cell-shaped structure.

7. A method according to claim 5, wherein reference marks that are visible or can be seen only under UV light are imprinted on the carrier film to mark the fields.

8. A method according to claim 1, wherein the textile material is selected from the group consisting of:

a woven textile, a material having a basic interlaid scrim of filament yarn and having loops that are connected with the scrim by knitting technology, and a nonwoven fabric.

9. A method according to claim 8, wherein the textile material has a weight per area unit between 5 g/m² and 60 g/m².

10. A method according to claim 1, wherein said step of brushing is accomplished with at least one brush having bristles made of metal or plastic, in one or more work steps.

11. A method according to claim 10, wherein said at least one brush has bristles that are disposed at a slant on the brush surface, or are bent.

12. A method according to claim 10, wherein the at least one brush comprises at least one brush roller or fixed brush.