首页>
外国专利>
A METHOD OF MANUFACTURING A RENTILABLE PROJECTION TRANSPARENCY, GIVEN WITH A THERMALLY FORMED IMAGE.
A METHOD OF MANUFACTURING A RENTILABLE PROJECTION TRANSPARENCY, GIVEN WITH A THERMALLY FORMED IMAGE.
展开▼
机译:提供具有可伪造图像的可投影投影透明度的方法。
展开▼
页面导航
摘要
著录项
相似文献
摘要
A thermally-responsive transparent film is disclosed which comprises certain chromogenic material and certain color developer material. With this film marks are developed in response to the application of heat to form an image. These images can be erased by the action of certain liquids or vapors. The imaged and erased states are fixed under a range of environmental conditions. This film finds particular utility as a reusable projection transparency.
展开▼