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US 10,472,763 B2Granted
Artificial leather using polyester and manufacturing method therefor
AssigneeJeongsan International Co., Ltd.
InventorsGu Hwan Kim, Dae Young Kim, Choong Ryeol Park
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Abstract
The present invention relates to an artificial leather using polyester, the artificial leather comprising: a base substrate layer made of a polyester fabric; an adhesive layer deposited on one surface of the base substrate layer and made of a polyester copolymer; and a skin film layer deposited on one surface of the adhesive layer and made of a polyetherester-based block copolymer.
Claims8
An artificial leather manufactured using polyester, the artificial leather comprising:
- a base material layer formed with polyester fabric;
- an adhesive layer stacked on one surface of the base material layer and formed with polyester copolymer;
- and
- a skin film layer stacked on one surface of the adhesive layer and formed with polyetherester BLOCK copolymer,
- wherein the adhesive layer is manufactured by mixing the polyester copolymer and isophthalic acid,
- wherein a melting point of the polyester copolymer is lower than a melting point of the polyetherester BLOCK copolymer,
- wherein the polyetherester BLOCK copolymer is manufactured by condensation polymerization of terephthalic acid, 1,4-butanediol and polytetraethylene glycol, and
- wherein the polyetherester BLOCK copolymer has a melting point (Tm) of 150˜190° C., a hardness of 20˜50D (by Shore hardness tester SHORE D), and a melt flow index (MI) of 10˜50 g/10 min.
5 more elements
A method for manufacturing an artificial leather using polyester, the method comprising:
- manufacturing a skin film layer and an adhesive layer;
- and
- bonding the skin film layer, the adhesive layer and a base material layer by sequentially stacking the skin film layer, the adhesive layer and the base material layer,
- wherein the manufacturing of the skin film layer and the adhesive layer includes manufacturing, in a film type, a polyetherester BLOCK copolymer and a polyester polymer simultaneously in two layers by T-DIE extrusion molding of the BLOCK copolymer and the polyester polymer,
- wherein the skin film layer includes the polyetherester BLOCK copolymer having a melting point (Tm) of 150˜190° C., a hardness of 20˜50D (by Shore hardness tester SHORE D), and a melt flow index (MI) of 10˜50 g/10 min,
- wherein the polyetherester BLOCK copolymer is manufactured by condensation polymerization of terephthalic acid, 1,4-butanediol, and polytetraethylene glycol,
- wherein the adhesive layer includes the polyester polymer having a melting point of 100˜170° C., a hardness of 20˜40D, a melt flow index (MI) of 10˜50 g/10 min, and a temperature of 190° C./2.16 kg load,
- wherein the adhesive layer is manufactured by mixing the polyester copolymer and isophthalic acid, and
- wherein the melting point of the polyester copolymer is lower than the melting point of the polyetherester BLOCK copolymer.
6 more elements
Dependencies are inferred from the claim text.