HEAT-SENSITIVE TRANSFER RECORDING MEDIUM

• Main Author: SUGISHITA YASUO
• Format: Patent
• Language: English; Japanese
• Published: 12.02.2015
• Subjects: COLOUR PRINTING; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; TRANSPORTING; TYPEWRITERS

PROBLEM TO BE SOLVED: To provide a heat-sensitive transfer recording medium having such properties that an amount of a dye used in a dye layer can be reduced, abnormal transfer in printing can be prevented even after the medium is stored at high temperature and high humidity, and partial matting on a surface of a printed matter, that is so-called a phenomenon of 'shininess', can be reduced.SOLUTION: The heat-sensitive transfer recording medium includes a heat-resistant lubricating layer 40 disposed on one surface of a substrate 10, and an undercoat layer 20 and a dye layer 30 disposed in this order on the other surface of the substrate 10. The undercoat layer 20 comprises at least a water-soluble polymer and a vinylpyrrolidone-vinylimidazole copolymer. 【課題】染料層に使用する染料を低減でき、また、高温・高湿下に保存後においても、印画における異常転写を防止でき、さらに、印画物表面が部分的にマット化する、いわゆる「テカリ」の現象を少なくすることができる感熱転写記録媒体を提供する。【解決手段】基材１０の一方の面に耐熱滑性層４０を設け、基材１０の他方の面に下引き層２０、染料層３０をこの順に設けた感熱転写記録媒体であり、下引き層２０が、少なくとも水溶性高分子とビニルピロリドン−ビニルイミダゾール共重合体とを含む。【選択図】図１