公开(公告)号：US4525722A

公开(公告)日：1985-06-25

申请号：US582694

申请日：1984-02-23

申请人： Krishna G. Sachdev ,  Harbans S. Sachdev ,  Ari Aviram ,  Mark A. Wizner

发明人： Krishna G. Sachdev ,  Harbans S. Sachdev ,  Ari Aviram ,  Mark A. Wizner

IPC分类号： B41M5/392 ,  B41J31/00 ,  B41J31/02 ,  B41M5/26 ,  G01D15/10

CPC分类号： B41M5/392 ,  Y10S428/913 ,  Y10S428/914 ,  Y10S430/146

摘要： Chemical heat amplification is provided in thermal transfer printing, wherein some of the heat necessary for melting and transferring ink from a solid fusible layer in a ribbon to a receiving medium is provided by an exothermic reaction. This chemical reaction is due to an exothermic material that is located in the ink layer, or in another layer of the ink bearing ribbon. The exothermic reaction reduces the amount of the input power which must be applied either electrically or with electromagnetic waves. Examples of suitable exothermic materials are those which will provide heat within the operative temperature range of the ink, and specifically hydrazone derivatives which are substantially colorless, and have a molecular weight in the approximate range 150-650.

摘要翻译： 在热转印中提供化学热放大，其中通过放热反应提供熔融和将油墨从带中的固体可熔层转移到接收介质所需的一些热。 这种化学反应是由于位于油墨层中的放热材料或油墨支承带的另一层。 放热反应减少必须通过电气或电磁波施加的输入功率的量。 合适的放热材料的实例是在油墨的操作温度范围内提供热量，特别是基本上无色的分子量为150-650的腙衍生物。