Autumn and winter adhesive (glue) use precautions
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As the autumn and winter season comes, the weather begins to cool and dry. When using 828 paper plastic, 822, 802 polishing glue to bond paper and plastic products, polishing and glazing printing products, it is recommended to strengthen the adhesive edge sealing and seal the manual. Process management such as box.
1. Shorten the time between application and bonding. (In the case of ordinary printing products, the glue is 2 meters long, and the autumn and winter should be coated about 1 meter. Be careful not to wait for the rubber layer on the rubber surface of the printed matter to dry and then press it. Make sure that the adhesive is fully infiltrated on the bonding surface. To avoid opening the glue).
2. Increase the pressing force and extend the pressing time after bonding or wipe back and forth with a soft cloth to avoid opening or foaming.
3. Due to the rapid development of paper coatings in recent years, the coating formulations are ever-changing, and the additives such as plasticizers, slip agents, waterproof and moisture-proof agents in the coatings migrate. It will lead to the decrease of the bonding strength during the box making, and even destroy the adhesive layer. Therefore, the light glue is generally used. The matte prints are made of 828 and 321PP glues of the company. For the polishing, whiteboard and copper plates, 822 and 802 are used. Adhesive.
4. For products with higher stiffness, it is necessary to apply pressure for half an hour in order to make the two contact surfaces fully contact, so as to prevent the product from automatically bounced after bonding.