Method for heat-setting and laminating a 3D knitted fabric, laminating apparatus, interior component and motor vehicle

Patent metadata

Field	Value
Publication number	US-12330406-B2
Application number	US-202217968000-A
Country	US
Kind code	B2
Filing date	Oct 18, 2022
Priority date	Oct 19, 2021
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

A method for heat-setting and laminating a 3D knitted fabric, which fabric has hot-melt adhesive yarn, on a carrier device for an interior component of a motor vehicle, includes the following steps: arranging the 3D knitted fabric on the carrier device in a laminating apparatus; activating the hot-melt adhesive yarn by way of the laminating apparatus for the heat-setting of the 3D knitted fabric; laminating the heat-set 3D knitted fabric on the carrier device by way of the laminating apparatus. A laminating apparatus for performing the heat-setting and laminating of the 3D knitted fabric on the carrier device is provided.

First claim

What is claimed is:

1. A method for heat-setting and laminating a knitted fabric on a carrier device for an interior component of a motor vehicle, the method comprising the steps of:
arranging a 3D knitted fabric on the carrier device in a laminating apparatus, the 3D knitted fabric comprising a hot-melt adhesive yarn;
heat-setting the 3D knitted fabric by activating the hot-melt adhesive yarn by way of the laminating apparatus; and
laminating the heat-set 3D knitted fabric on the carrier device by way of the laminating apparatus.

2. The method according to claim 1 , wherein the activating further comprises:
applying force to the hot-melt adhesive yarn of the 3D knitted fabric for activating the hot-melt adhesive yarn, by way of a force-exerting device of the laminating apparatus.

3. The method according to claim 1 , wherein the method further comprises:
controlling a temperature of the hot-melt adhesive yarn of the 3D knitted fabric, by way of a temperature device of the laminating apparatus.

4. The method according to claim 1 , wherein the method further comprises:
impregnating the 3D knitted fabric with an activation medium by way of an impregnating device of the laminating apparatus, the activation medium comprising an acrylate.

5. The method according to claim 1 , wherein the activating further comprises:
adding a catalyst medium to the 3D knitted fabric for activating the hot-melt adhesive yarn, by way of an addition device of the laminating apparatus.

6. The method according to claim 1 , wherein
the hot-melt adhesive yarn comprises at least one first fiber composed of a first fiber material, and
the 3D knitted fabric comprises at least one second fiber composed of a second fiber material,
the first fiber material and the second fiber material are different, and
the first fiber material is designed as a reaction partner for the second fiber material.

7. The method according to claim 1 , wherein the activating further comprises:
radiating activation radiation and/or an activation current into the 3D knitted fabric for activating the hot-melt adhesive yarn, by way of a radiating device of the laminating apparatus.

8. The method according to claim 1 , wherein the laminating further comprises:
applying force to the 3D knitted fabric and the carrier device, by way of a force-exerting device of the laminating apparatus.

9. The method according to claim 1 , wherein the activating further comprises:
activating a first portion of the 3D knitted fabric with a first intensity and activating a second portion of the 3D knitted fabric with a second intensity, the second intensity being higher than the first intensity.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Aumann Thomas
• Dechant Florian
• Gasslhuber Johann

Classifications

• B32B2305/07

  Parts immersed or impregnated in a matrix · CPC title

• B32B2605/003

  Interior finishings · CPC title

• B32B2310/0806

  using electromagnetic radiation · CPC title

• B32B2262/152

  Knitted fabric · CPC title

• B32B2260/046

  Synthetic resin · CPC title