THERMAL TRANSFER FILM

• Main Authors: TODE RYOHEI, YAMAZAKI TSUKASA, SHODA AKIRA, TANABE JUNYA
• Format: Patent
• Language: English; Japanese
• Published: 03.03.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; COLOUR PRINTING; DECORATIVE ARTS; LINING MACHINES; MOSAICS; PAPERHANGING; PERFORMING OPERATIONS; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; PRODUCING DECORATIVE EFFECTS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; STAMPS; TARSIA WORK; TRANSPORTING; TYPEWRITERS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a thermal transfer film that has an excellent transfer property and can suppress a temperature of a body to be transferred from rising after transfer.SOLUTION: A thermal transfer film has a print layer and a base material layer. The print layer contains a resin binder and pigment. In the resin binder, which is a film with a thickness of 10 μm, a maximum absorption rate of infrared rays with wavelengths of 980-1580 nm is 5% or less. In the print layer, which is formed into a laminated body laminated with a polyethylene terephthalate film with a thickness of 4.5 μm, the laminated body satisfies the following requirements (1)-(3): (1) light transmissibility of a D65 light source is 35% or less; (2) minimum reflectance of infrared rays with wavelengths of 980-1580 nm is 20% or more; and (3) a maximum absorption rate of infrared rays with wavelengths of 980-1580 nm is 30% or less.SELECTED DRAWING: Figure 1 【課題】優れた転写性を有し、転写後の被転写体の温度上昇を抑えることが可能な熱転写フィルムを提供する。【解決手段】印刷層と、基材層と、を有する熱転写フィルムであって、印刷層が、樹脂バインダーと、顔料と、を含有し、樹脂バインダーは、厚さ１０μｍのフィルムとした際に、波長９８０～１５８０ｎｍの赤外線の最大吸収率が５％以下であり、印刷層は、厚さ４．５μｍのポリエチレンテレフタレートフィルムと積層して積層体とした際に、当該積層体が下記要件（１）～（３）を満たす、熱転写フィルム。（１）Ｄ６５光源の光透過率が３５％以下である。（２）波長９８０～１５８０ｎｍの赤外線の最小反射率が２０％以上である。（３）波長９８０～１５８０ｎｍの赤外線の最大吸収率が３０％以下である。【選択図】図１