Fiber sheet for forming
AssigneeToyo Boseki Kabushiki Kaisha
InventorsYoshiaki Miyagawa, Takeshi Mitomi
Life of this patent
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Abstract
A fiber sheet for forming comprising a low softening point fiber and/or a high stretchability fiber and a high softening point fiber.
Claims11
A yarn interlaced fabric sheet, adapted for lamination to a plastic sheet to provide a laminate having a fabric surface having excellent appearance and hand, which fabric sheet comprises (A) a first side, adapted for lamination to a plastic sheet, comprised mainly of a stretchable, low softening point fiber having a softening point between 80.degree. and 220.degree. C. and an elongation at break of at least 50% and (B) a second appearance contributing side comprised mainly of a fiber having a softening point at least 20.degree. C. higher than the softening point of the low softening point fiber.
A formable laminate which comprises:
- (A) A yarn interlaced fabric sheet comprising:
- (i) a first side comprised mainly of a stretchable, low softening point fiber having a softening point between 80.degree. and 220.degree. C. and an elongation at break of at least 50%, and
- (ii) a second appearance contributing side comprised mainly of a fiber having a softening point at least 20.degree. C. higher than the softening point of the low softening point fiber;
- and
- (B) a formable plastic sheet said fiber sheet (A) being bonded at said first side to said formable plastic sheet (B).
A process which comprises heat forming an article from a laminate comprising:
- (A) A yarn interlaced fabric sheet comprising:
- (i) a first side comprised mainly of a stretchable, low softening point fiber having a softening point between 80.degree. and 220.degree. C. and an elongation at break if at least 50%, and
- (ii) a second appearance contributing side comprised mainly of a fiber having a softening point at least 20.degree. C. higher than the softening point of the low softening point fiber;
- and
- (B) a formable plastic sheet, said fiber sheet (A) being bonded at said first side to said formable plastic sheet (B), said heat forming being conducted so that the stretchable, low softening point fiber stretches at the surface of the fabric sheet bonded to said plastic sheet along curved surfaces formed in the bonded surface of the plastic sheet during the heat forming process, while the fiber having an at least 20.degree. C. higher melting point remains thermally stable at the appearance contributing side of the bonded fabric layer.
Dependencies are inferred from the claim text.