Porous polyester film and thermal transfer image-receiving sheet

Details Porous polyester film and thermal transfer image-receiving sheet Porous polyester film and thermal transfer image-receiving sheet

1998-06-08

2000-08-01

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having plural interactive leaves

428195, 428212, 4283044, 428323, 428328, 428480, 428913, 428914, B41M 5035, B41M 538

Patent

active

06096684&

ABSTRACT:
A porous polyester film having an apparent specific gravity of not more than 1.3, which comprises a polyester film having many voids (layer (A)) comprising a polyester and a thermoplastic resin incompatible with said polyester, and a polyester film having many fine voids (layer (B)) comprising a polyester and inorganic fine particles having an average particle size of not more than 1 .mu.m, the two layers being bonded to each other, wherein the layer (B) has a porosity of not less than 20% by volume, and a thickness of 1-20 .mu.m that is not more than 30% of the thickness of the porous film. Due to the present invention, a porous polyester film capable of providing an image-receiving sheet superior in surface smoothness, image density, and resistance to wrinkles can be provided.

REFERENCES:
patent: 4897377 (1990-01-01), Marbrow
patent: 5422175 (1995-06-01), Ito et al.

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