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METHOD OF MAKING A SELF-ERASING, REUSABLE WRITING SURFACE ON PACKAGING STRUCTURE
METHOD OF MAKING A SELF-ERASING, REUSABLE WRITING SURFACE ON PACKAGING STRUCTURE
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机译:在包装结构上制作自擦除,可重复使用的书写表面的方法
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摘要
PURPOSE: To prepare a writing and drawing surface by covering a layer of a pressure-sensitive adhesive on a printed color backing with an overlay film and affixing its marginal area to a packaging structure using a second adhesive. CONSTITUTION: The process of production comprises coating a printed color backing with an adhesive sensitive to a pressure with a writing or drawing utensil, covering the coated adhesive layer with a film, and affixing its marginal area to a carton using a second adhesive. Lifting up the fringe of the covered film from the carton enables the user to use a writing board. Pressure is applied to the cover film with a sharp pencil in order to bring the sheet and the plastic adhesive into contact. The adhesive material is deformed and flows to a light- reflecting translucent surface. The light passes through the covered film which is in contact with the plastic adhesive and reaches the adhesive, exhibiting a dark color. The written pattern can be erased by lifting up the fringe of the covered film again to eliminate the contact part of the film and the adhesive.
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