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US 5,177,053 AGranted
Thermal transfer image-receiving sheet
AssigneeOji Paper Co., Ltd.
InventorsToshikazu Nagura, Kenji Yasuda, Michinori Tsuchiya, Tsunehisa Shigetani, Masaru Kato
Life of this patent
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Abstract
A thermal transfer image-receiving sheet for a thermal transfer type printer comprises a sheet substrate, a front coating layer formed on the front surface of the sheet substrate and comprising a polyolefin resin, a polyolefin resin back coating layer formed on the back surface of the sheet substrate, and optionally, a surface coating layer formed on the front coating layer and comprising a resinous binder and a pigment.
Claims5
A thermal transfer image-receiving sheet comprising:
- a sheet substrate;
- a front coating layer formed on a front surface of the sheet substrate having a weight of 2 to 50 g/m.sup.2 and comprising, as a principal component, a polyolefin resin material which comprises:
- at least one member selected from the group consisting of polyethylene resins;
- polypropylene resins, polybutene resins, polypentene resins and copolymer resins of at least two of ethylene, propylene, butene and pentene;
- and a white pigment dispersed in said polyolefin resin material in an amount of 5 to 20% by weight;
- a back coating layer formed on a back surface of the sheet substrate having a weight of 2 to 50 gm/.sup.2 and comprising, as a principal component, a polyolefin resin material,
- said sheet substrate consisting essentially of a paper sheet, having a basis weight of 20 to 250 g/m.sup.2, and comprising a pulp material which includes a low viscosity pulp material fraction having a viscosity of 5 to 12 centipoises determined in accordance with the method of Tappi T 230, om-82, and in an amount of 10 to 70% based on the total dry weight of the pulp material.
4 more elements
Dependencies are inferred from the claim text.