PROCESS FOR THE MANUFACTURE OF PAPERBOARD CARTONS

摘要

This invention relates to an improvement in a process for forming a carton from paperboard stock comprising the steps: applying an aqueous based adhesive to select parts of a paperboard carton blank obtained from a paperboard feedstock; drying the aqueous based adhesive; folding the select parts of the adhesive coated carton blank onto cooperating parts of the paperboard blank; and, heat sealing the select and cooperating parts thereby forming the carton; wherein the aqueous based adhesive is comprised of a vinyl acetate/ethylene polymer formed by emulsion polymerization and having (a) a crystalline melting point (T m) ranging from 35 to 110.degree.C, preferably 50 to 90.degree.C; measured at a heat rate of 20.degree.C/minute and, (b) a tensile storage modulus of at least 1 .times. 10 4 dynes/cm2 at 115.degree.C measured at 6.28 rad/sec.