| 摘要 |
PURPOSE:To obtain a thermal recording material excellent in a color forming property and other recording properties and having good stability, by containing a colorless - light-colored color forming leuco dye forming a color by an electron acceptive substance and pentamethylene-bis-m-hydroxyphenyl ether. CONSTITUTION:By using pentamethylene-bis-m-hydroxyphenyl ether represented by formula is used as a coupler, a high density developed color image is obtained under heating and the storage stability thereof is well and the adhesion of residuum to a thermal head is hardly confirmed and a running property capable of sufficiently withstanding long-term printing recording is shown. 1-10pts.wt. of said coupler and 1-20pts.wt. of a filler are used based on 1pt.wt. of a color forming leuco dye and the proper amount of a binder is 10-20wt% of a total solid. A thermal recording layer is formed by coating a support such as paper, synthetic paper or a plastic sheet or film with a solution having components for said color forming layer before drying. |
