Artificial leather structure and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-12091816-B2
Application number	US-202217702124-A
Country	US
Kind code	B2
Filing date	Mar 23, 2022
Priority date	Mar 24, 2021
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

The present disclosure provides an artificial leather structure, comprising a woven layer, a porous elastomer layer disposed on the woven layer and a nonwoven layer disposed on the porous elastomer layer. The porous elastomer layer is adhered to the woven layer and the nonwoven layer.

First claim

What is claimed is:

1. An artificial leather structure, comprising:
a woven layer;
a porous elastomer layer disposed on the woven layer and comprising a plurality of holes; and
a nonwoven layer disposed on the porous elastomer layer;
wherein the porous elastomer layer is adhered to the woven layer and the nonwoven layer;
wherein the plurality of holes are columnar holes penetrating the porous elastomer layer but not penetrating through the woven layer or the nonwoven layer;
wherein the material of the porous elastomer layer is thermoplastic polyurethane (TPU), the melting point of the porous elastomer layer is from about 90° C. to about 130° C., and the Shore A hardness of the porous elastomer layer is from about 45A to about 60A; and
wherein the material of the nonwoven layer is TPU, the melting point of the nonwoven layer is from about 130° C. to about 190° C., and the Shore A hardness of the nonwoven layer is from about 50 A to about 80 A.

2. The artificial leather structure of claim 1 , wherein the woven layer contains a plurality of fibers, and the plurality of fibers are gathered to form yarn or filaments, and meridian yarn or filaments and latitude yarn or filaments cross-pass each other.

3. The artificial leather structure of claim 1 , wherein the woven layer contains a plurality of fibers, and the plurality of fibers are gathered to form yarn or filaments, and fiber-forming yarn or filaments form loops and the loops stack and entangle together.

4. The artificial leather structure of claim 1 , wherein the fibers of the woven layer are filaments.

5. The artificial leather structure of claim 1 , wherein the TPU is polyester-based TPUs derived from adipic acid esters, or polyether-based TPUs based on tetrahydrofuran ether.

6. The artificial leather structure of claim 1 , wherein the plurality of holes are foam holes.

7. The artificial leather structure of claim 1 , wherein the nonwoven layer is melt-blown nonwoven or spun-bonded nonwoven.

8. The artificial leather structure of claim 1 , wherein the fineness of fiber of the nonwoven layer is less than 10 μm.

Assignees

• San Fang Chemical Ind Co Ltd

Inventors

• Lin Chih-Yi
• Cheng Kuo-Kuang
• Yang Kao-Lung
• Liao Wei-Jie

Classifications

• B32B5/022

  Non-woven fabric · CPC title

• B32B5/024

  Woven fabric · CPC title

• B32B2307/536

  Hardness · CPC title

• B32B2266/0278

  Polyurethane · CPC title

• B32B2250/40

  Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA · CPC title