Taisho Pharmaceutical Co., Ltd.

Oji Paper Co., Ltd.

New Oji Paper Co, Ltd.

Shuji Saito

Hideaki Shinohara

Katsuo Hatayama

Kensei Yoshikawa

Atsushi Nakazawa

Yoshitaka Tomino

Yohichi Shimazaki

Mariko Kashiwa

Hiroshige Yamauchi

Ken Kanazawa

5-amino-2-phenoxysulfonanilide compound

A thermosensitive recording material having a high resistance to curling and cockling when colored images are developed thereon comprises a substrate sheet comprising a thermoplastic resin and having a thermal shrinkage of 1.0% to 2.0% at a temperature of 120.degree. C.; a thermosensitive colored image-forming layer formed on a surface of the substrate sheet and comprising a colorless dye precursor, a color-developing agent and a binder; a backcoat layer formed on the opposite surface of the substrate sheet, having a weight of 1 to 10 g/m.sup.2 and comprising 20 to 90 parts by weight of a water-soluble polymeric material 10 to 80 parts by weight of a water-isoluble polymeric material and 1 to 10 parts by weight of a cross-linking agent for the water-soluble polymeric material; and optionally, an overcoat layer formed on the thermosensitive colored image-forming layer and comprising a pigment and binder resin.

Thermosensitive recording material

A heat-sensitive recording material having an improved color image-forming property and an enhanced gloss and resistance to water, oily substances and plasticizers, is provided with a heat-sensitive color-forming layer formed on a substrate surface and comprising a substantially colorless dye precursor, a color-developing agent and a binder; an intermediate layer formed on the color-forming layer and comprising a hydrophilic polymeric material and a pigment; a glossy surface layer formed on the intermediate layer and comprising a hydrophobic polymeric material having a glass transition point of 60.degree. C. or more, and a lubricant; and optionally, an additional intermediate layer formed between the color-forming layer and the intermediate layer and comprising at least one member selected from hydrophilic polymeric materials and hydrophobic polymeric materials.

Heat-sensitive recording material

Growing community of inventors

Tokyo, Japan

Shuji Saito