Kanzaki Paper Manufacturing Co., Ltd.

Kanzaki Paper Mfg. Co., Ltd.

Toyo Boseki Kabushiki Kaisha

Hiroo Hayashi

Takeshi Murakami

Yoshitaka Oeda

Teruo Nakamura

Katsuhiko Ishida

Toshimitsu Arikawa

Hironari Fujioka

Takeshi Matsui

Hisashi Tani

Gensuke Matoba

Junichi Miyake

Masami Kanemoto

Katsunori Miyazaki

Takehiko Watanabe

An improved heat-sensitive recording material of the type having a substrate and a heat-sensitive recording layer formed on said substrate, said heat-sensitive recording layer containing a color former and a color developer to color said color former upon contact by heating, characterized in that said substrate comprises an adiabatic foamed polyester resin film containing minutes cavities with an apparent specific gravity in the range of 0.9 to 1.2.

Heat-sensitive recording material with a substrate comprising a foamed

A substrate for heat-sensitive recording material is disclosed, comprising a film-like substrate made mainly of a synthetic resin and a sheet-like substrate made mainly of a fibrous materials laminated each other with an electron beam-curable adhesive. A heat-sensitive recording material using the above substrate provides an image having excellent quality.

Substrate for heat-sensitive recording material

A heat-sensitive recording material comprising a support and a recording layer provided on the support, said recording layer containing a colorless or pale-colored basic dye and a color developer capable of forming a color upon application of heat, wherein a smectite clay or a combination of a synthetic hectorite clay and soap-free emulsion type binder is incorporated in at least one of layers constituting the recording material.

Heat-sensitive recording material

A heat-sensitive recording material which comprises a heat-sensitive recording layer and a substrate, the substrate having as a constituent element a synthetic resin film layer containing minute cavities and a content of cavities in the synthetic resin film layer being 40 to 100 cc/100 g. The heat-sensitive recording material has excellent resolution and gives a clear recorded image having a high density even with low printing energy.

A heat-sensitive recording material comprising a support and a recording layer provided on the support, said recording layer containing a colorless or pale-colored basic dye and a color developer capable of forming a color upon application of heat, wherein electroconductive titanium oxide is incorporated in at least one of layers constituting the recording material.

In a heat-sensitive record material comprising a base sheet and a color developing layer formed thereon, a pigment having an oil absorption within the range of 80 to 800 ml/100 g is additionally included in the color developing layer.

Heat-sensitive record material

In a heat-sensitive record material comprising a base sheet having a color developing layer which includes finely divided particles of chromogenic material and finely divided particles of acceptor, a heat fusible material having a relatively low melting point is included in said finely divided particles of chromogenic material and/or said finely divided particles of acceptor.

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Kyoto, Japan

Hiroo Hayashi