In the current market, express bags are usually made of PE plastic materials, but some are made of kraft paper. For the sealing adhesive of express bags, its design needs to balance initial tack and permanent adhesion. When the sealing tape of the express bag is peeled off and pressed onto the joint, it should quickly generate sufficient adhesive force to avoid easy slippage. At the same time, it should also maintain good permanent adhesion to ensure that the material is damaged when torn.
BL - 7012 is suitable for use and transportation in different environments, whether it is the hot summer or the cold winter. It has a mild odor, environmental - friendly properties, good initial tack performance, and strong permanent adhesion. It is specifically designed for the hot melt adhesive of kraft paper express bags.