Patent ID: 6238509
Filing Date: 2001-05-29
Classification: B65C,C09J,Y10T

Abstract:
A process for applying wrap-round labels, optionally containing perforated strips, to containers with an adhesive system, comprising a water-based pick-up adhesive wherein, in a wet state, the pick-up adhesive has sufficient bond strength for labeling, and wherein, in a dried state, the pick-up adhesive shows virtually no adhesion to at least one of a container substrate a label substrate or both, and an overlap adhesive which bonds overlapping ends of the label, the pick-up adhesive comprising(a) about 5% to about 85% by weight of water soluble substance selected from the group consisting of casein, starch, dextrin, glucose, polyvinyl alcohol, polyurethane, polyacrylic acid and mixtures thereof;(b) 0 to about 1% by weight of at least one defoamer;(c) 0 to about 1% by weight of at least one preservative: and(d) water as the balance to 100% by weight, the process comprising:(1) applying the pickup adhesive to at least part of a surface of the containers to be labeled or to at least part of a back of the wraparound label;(2) applying the wrap-around label;(3) joining a back of a first end of the wrap-around label to a front of a second end of the wrap-around label with the overlap adhesive; and(4) allowing the adhesive to set.