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US 10,974,631 B2Granted
Seat cover for automobile and manufacturing method therefor
AssigneeLG Hausys, Ltd.
InventorsChul-Hee Min, Yong-Bae Jung, Nam-Keun Choi
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Abstract
Provided are a seat cover for an automobile and a manufacturing method therefor, the seat cover comprising a surface-treated layer, a cover layer, a soft foam layer, and a rear layer and comprising an embossing pattern formed on the top surface, wherein the soft foam layer comprises 15 to 20 foam cells per unit area of 1 mm2 of the surface thereof.
Claims12
An environmental friendly seat cover for an automobile, comprising:
- a surface-treated layer;
- a cover layer;
- a soft foam layer, wherein
- the soft foam layer comprises 15 to 20 foam cells per unit area of 1 mm2 of the layer surface, and an average diameter of the form cells ranges from 135 μm to 200 μm,
- the soft foam layer has a specific gravity ranging from 0.7 g/cc to 0.8 g/cc,
- a thickness of the soft foam layer ranges from 0.8 mm to 0.9 mm;
- and
- a rear layer,
- wherein
- the seat cover has an embossing pattern formed on an uppermost surface thereof,
- a constant load elongation of the seat cover in an MD direction ranges from 17% to 20%, and a constant load elongation of the seat cover in a TD direction ranges from 35% to 42%, and
- a residual compression of the seat cover set in the MD direction is 4% or less, and a residual compression of the seat cover set in the TD direction is 14% or less,
- wherein the surface-treated layer is formed from a waterborne coating composition, the waterborne coating composition comprises:
- a first compound having at least two functional groups per molecule, and the at least two functional groups of the first compound are selected from the group consisting of a carboxyl group, a hydroxyl group, an amino group, and combinations thereof;
- and
- a second compound having at least two functional groups selected from the group consisting of an aziridine group, an isocyanate group, and a carbodiimide group per molecule, wherein the second compound comprises a compound having an isocyanate group, and the compound having an isocyanate group comprises at least one compound represented by Formula 3-5:
- wherein the embossing pattern is a hemisphere shape pattern formed by a vacuum embossing process,
- wherein an amount of volatile organic compounds generated in the seat cover is 200 μg/m2 or less, and
- wherein the cover layer and the soft foam layer are made of a thermoplastic resin composition comprising a thermoplastic polyurethane (TPU) resin and a polyvinyl chloride (PVC) resin.
16 more elements
A method for manufacturing a seat cover for an automobile, comprising:
- preparing a laminate comprising a surface-treated layer, a cover layer, a soft foam layer, and a rear layer;
- and
- forming an embossing pattern on an uppermost surface of the laminate by a vacuum embossing process, wherein the embossing pattern is a hemisphere embossing pattern,
- wherein
- the soft foam layer comprises 15 to 20 foam cells per unit area of 1 mm2 of the layer surface, and an average diameter of the form cells ranges from 135 μm to 200 μm,
- the soft foam layer has a specific gravity ranging from 0.7 g/cc to 0.8 g/cc,
- a thickness of the soft foam layer ranges from 0.8 mm to 0.9 mm,
- a constant load elongation of the seat cover in an MD direction ranges from 17% to 20%, and a constant load elongation of the seat cover in a TD direction ranges from 35% to 42%, and
- a residual compression of the seat cover set in the MD direction is 4% or less, and a residual compression of the seat cover set in the TD direction is 14% or less,
- the surface-treated layer is formed from a waterborne coating composition, the waterborne coating composition comprises:
- a first compound having at least two functional groups per molecule, and the at least two functional groups of the first compound are selected from the group consisting of a carboxyl group, a hydroxyl group, an amino group, and combinations thereof;
- and
- a second compound having at least two functional groups selected from the group consisting of an aziridine group, an isocyanate group, and a carbodiimide group per molecule, wherein the second compound comprises a compound having an isocyanate group, and the compound having an isocyanate group comprises at least one compound represented by Formula 3-5:
- wherein an amount of volatile organic compounds generated in the seat cover is 200 μs/m2 or less, and
- wherein the cover layer and the soft foam layer are made of a thermoplastic resin composition comprising a thermoplastic polyurethane (TPU) resin and a polyvinyl chloride (PVC) resin.
12 more elements
Dependencies are inferred from the claim text.