| 摘要 |
PURPOSE:To prevent the trade mark portion of a cover paper from peeling off by a method wherein water-soluble delayed tacky adhesive, in which crystalline plasticizer is dispersed in resin polymer, is applied on the upper and lower faces of a packing container and dried, and an adhesive layer is formed, which becomes sticky by heat over 60 deg.C. CONSTITUTION:Delayed tacky adhesive is painted on the edges of the upper and lower faces 1A and 1B and dried naturally to form an adhesive layer 2 which becomes sticky by heat over 60 deg.C. Forming the adhesive layer 2 can be carried out in such a manner that the adhesive is applied after the container 1 is assembled or painted with a roller at the step of printing a trade mark, etc., on the portions 1A and 1B which become the upper and lower faces respectively when the container is assembled after a sheet of corrugated paper is cut into the developing shape of the container. Thereby, an adhering strength endualable for a long distance transportation can be achieved without tacky of the adhesive layer. |
