In order to make carton bonding more sedate, might as well the coarse lapping tongue carton variable by bonding stable pressure box joint, this bond stronger consequences. The hot melt adhesive must be in the high temperature control, the splicing surface by pressure bonding, etc. after cooling from high temperature adhesive strength to. The splicing surface is not recycled hot melt adhesive, also will not penetrate into the splicing surface, if saved between foreign body, will cause the adhesive is not good. The use of hot melt adhesive glue should be implemented, to ensure no foreign body spliced surface adhesion.