ARTICLE HAVING RELEASABLE SURFACE LAYER, RELEASABLE SURFACE LAYER-FORMING MATERIAL, METHOD FOR RELEASING AND REMOVING SURFACE LAYER FROM ARTICLE, AND ARTICLE HAVING REMOVED SURFACE LAYER THEREFROM

摘要

PROBLEM TO BE SOLVED: To provide an article such as a plastic film, a plastic container, a glass container or the like on which letters and patterns or the like can be printed without detriment to various characteristics using a conventional printing ink and from which printed matters can be easily released and removed by a treatment with an aqueous solution when recycled and to provide a method for releasing and removing a printed matter from the article. SOLUTION: The article has on its surface a releasing layer on which a printed matter is formed and the releasing layer is made of a material which becomes water-wellable or water-soluble by at least a neutralization treatment. A releasing component comprises a polymer or a copolymer containing 10-60 wt.% of a carboxylic group in the molecule.