Stain proof textured fabric

Patent metadata

Field	Value
Publication number	US-9527263-B2
Application number	US-201414168990-A
Country	US
Kind code	B2
Filing date	Jan 30, 2014
Priority date	Jan 30, 2014
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

This application relates to a method and apparatus for forming a textured stain resistant fabric. The stain resistant layer can be formed from a non-conventional anti-stain resistant resin that can conform to varying texturing geometries. In one embodiment, the stain resistant layer can be formed against a sheet of release paper having a texturing surface configured to form a textured surface on the stain resistant layer.

First claim

What is claimed is:

1. A method for forming a polyurethane fabric, comprising:
forming a stain resistant layer by applying an anti-stain resistant resin to a sheet of release paper, the formed stain resistant layer comprising a first surface and a second surface opposite the first surface, the first surface having a textured pattern corresponding to a texturing pattern of the release paper;
curing a polyurethane layer against the second surface of the stain resistant layer;
applying an adhesive layer to the cured polyurethane layer; and
laminating a textile layer against the adhesive layer.

2. The method as recited in claim 1 , wherein the applying an adhesive layer comprises spreading a layer of pressure sensitive adhesive along a surface of the cured polyurethane layer.

3. The method as recited in claim 2 , wherein the anti-stain resistant resin has material properties allowing it to conform to the texturing pattern of the sheet of release paper.

4. The method as recited in claim 1 , wherein the anti-stain resistant resin comprises a poly tetrafluoroethylene copolymer blend.

5. The method as recited in claim 1 , wherein curing the polyurethane layer comprises placing the formed stain resistant layer and polyurethane layer into a heat chamber.

6. The method as recited in claim 1 , wherein laminating the textile layer comprises passing the polyurethane fabric through a set of rollers configured to compress the layers together.

7. The method as recited in claim 1 , further comprising removing the sheet of release paper from the stain resistant layer,
wherein the textured pattern of the first surface maintains a geometry complementary to the texturing pattern of the release paper, subsequent to removal of the sheet of release paper.

8. The method as recited in claim 1 , wherein applying the adhesive comprises applying a thermosetting adhesive.

9. A method for forming an accessory device, comprising:
depositing an anti-stain resistant resin against a sheet of release paper;
solidifying the anti-stain resistant resin to form a stain resistant layer; the stain resistant layer comprising a first surface and a second surface opposite the first surface, the first surface having a textured pattern corresponding to a texturing pattern of the release paper;
forming a polyurethane layer against the second surface of the stain resistant layer;
curing the polyurethane layer; and
laminating a textile layer against the polyurethane layer using an adhesive layer to form a composite fabric.

10. The method as recited in claim 9 , wherein curing the polyurethane layer comprises curing the polyurethane layer using a heat chamber.

11. The method as recited in claim 9 , further comprising:
applying another polyurethane layer to the polyurethane layer; and
curing the other polyurethane layer.

12. The method as recited in claim 9 , wherein the adhesive layer provides structural stability to the composite fabric.

13. The method as recited in claim 9 , further comprising:
removing the sheet of release paper from the stain resistant layer.

14. The method as recited in claim 9 , further comprising:
stretching the composite fabric over a substrate defining at least a portion of the accessory device.

Assignees

• Apple Inc

Inventors

• Krasniewicz Brett E
• Hamada Yoji

Classifications

• B32B2037/243

  Coating · CPC title

• B32B2255/10

  on synthetic resin layer or on natural or synthetic rubber layer · CPC title

• B32B5/026

  Knitted fabric · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• Y10T428/24355

  Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.] · CPC title