The process to provide a closure integrity high in papelao packaging, packaging papelao with closure of high integrity.The device distributor of adhesive and device for providing a wire proof peneiracao packaging papelao

摘要

The invention relates to a high-integrity closure, sift-proof carton, a method and an adhesive dispensing means for producing same. Foamed hot melt adhesive is dispensed in parallel strips (F, R) from dispensing guns (41,48;51,55) onto the flaps (20,22,30,32) of the carton, which are thereafter folded down to close the carton. The strips can be spaced so that a continuous tight adhesive seal is formed, especially by providing a strip pattern interdigitating when the flaps contact each other. Since all strips are provided in parallel, while the carton is moved with respect to the dispensing means, application of adhesive is fast and reliable.