THERMAL TRANSFER MATERIAL

• Main Authors: TAMAOKI HIROYUKI, USAMI TOMOMASA
• Format: Patent
• Language: English
• Published: 05.11.1984
• Edition: 3
• Subjects: COLOUR PRINTING; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; TRANSPORTING; TYPEWRITERS

PURPOSE:To provide a thermal transfer material free from a sticking in use and easy to produce, wherein a water-soluble heat-resistant protective layer is provided on the lower side of a base provided with a heat-fusible ink layer on the upper side thereof. CONSTITUTION:The heat-fusible ink layer 3 is provided on the upper side of the base 4, and the water-soluble heat-resistant protective layer 8 consisting of ethyl cellulose, PVA, gelatin or the like is provided on the lower side of the base 4 to obtain the thermal transfer material 9. A conventional thermal transfer material comprising a heat-fusible ink layer has a defect in that favorable feed of the material is hindered by the sticking phenomenon in which a base brought into contact with a thermal head under pressure is fused. To improve the defect, a method has been disclosed in which a heat-resistant protective film consisting of a silicone resin, an epoxy resin or the like is provided on the lower side of the base. However, since the heat-resistant resin is insoluble in water, the method has a demerit in that the production process is complicated. The production of the thermal transfer material is facilitated by constituting the heat-resistant protective layer of a water-soluble material.