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公开(公告)号:US5219622A
公开(公告)日:1993-06-15
申请号:US847066
申请日:1992-04-09
Applicant: Waldemar Meier
Inventor: Waldemar Meier
CPC classification number: G09F3/02 , G03G7/0046 , G03G7/006 , G03G7/008 , G09F3/04 , G09F2003/0201 , G09F2003/0202
Abstract: A method of forming a sheet of material with indicia thereon comprises applying indicia to the sheet by an electrostatic copying process in which a toner powder is deposited on the sheet and is heated to cause it to fuse. The sheet of material comprises a flexible support layer that is provided with a porous coating of a latent curable material, preferably in particulate and/or filamentary form and especially one based on an epoxy material.It has been found that the indicia are more indelible than those formed on other surfaces by the same process even though the fused toner is not absorbed by the curable material.
Abstract translation: PCT No.PCT / GB90 / 01556 Sec。 371日期:1992年4月9日 102(e)日期1992年4月9日PCT 1990年10月9日PCT PCT。 第WO91 / 05323号公报 1991年4月18日。一种用标记形成片状材料的方法包括通过静电复印工艺将标记施加到片材上,其中调色剂粉末沉积在片材上并加热使其熔合。 该材料片包括柔性支撑层,该柔性支撑层设置有潜在可固化材料的多孔涂层,优选为颗粒状和/或丝状形式,特别是基于环氧树脂材料。 已经发现,即使熔融的调色剂不被可固化材料吸收,标记比通过相同方法在其它表面上形成的标记更不可擦除。