Thermal imaging method
    9.
    发明授权
    Thermal imaging method 失效
    热成像法

    公开(公告)号:US5192645A

    公开(公告)日:1993-03-09

    申请号:US729420

    申请日:1991-07-12

    IPC分类号: B41M5/323

    摘要: A thermal imaging method for forming color images is provided which employs as the color image-forming material, a colorless precursor of a preformed image dye possessing at least one thermal protecting group that undergoes fragmentation upon heating and at least one leaving group that undergoes irreversible elimination upon heating, said protecting and leaving groups maintaining the precursor in its colorless form until heat is applied to effect removal of these groups whereby the precursor is converted to an image dye.

    摘要翻译: 提供了用于形成彩色图像的热成像方法,其使用成像材料作为预成形图像染料的无色前体,其具有至少一个在加热时经历碎裂的热保护基团和至少一个经历不可逆消除的离去基团 在加热时,所述保护和离去基团将前体保持其无色形式,直到施加热量以实现这些基团的去除,由此将前体转化为图像染料。