High Quality Eco-Friendly Milky White PVA Sticky Liquid Glue Water-Based for Paper Core and Paper Tube
Paper Tube Adhesive, also known as Core Glue, is an industrial adhesive specifically formulated for bonding various paper-based cylindrical products such as paper tubes, paper cores, composite cans, and edge protectors. It is typically manufactured from high-molecular polymers (e.g., Polyvinyl Alcohol, Vinyl Acetate), fillers, and additives through a specialized process.
Q1: What should I do if the paper tube adhesive is drying too slowly?
A: Slow drying speed can have several causes. First, check if the application environment temperature is too low (ideally not below 10°C). Second, it might be an incompatibility between the adhesive and the paper type, or the glue layer might be applied too thickly. Some specialized adhesives are formulated to achieve fiber-tearing strength within 3-5 minutes and dry thoroughly in about 1 hour. If it's too slow, consult the manufacturer to adjust the formulation or switch to a faster-drying type.
Q2: Why does adhesive splatter or fling off when used on a high-speed paper tube machine?
A: Splattering on high-speed machines is often due to insufficient initial tack or viscosity mismatch with the machine speed. At high rotation speeds, if the adhesive doesn't set quickly enough, it can be thrown off by centrifugal force. The solution is to choose an adhesive specifically designed for high-speed applications, or consult your supplier for a customized formulation based on your specific machine type and paper material (e.g., grey chipboard, kraft paper), adjusting factors like setting speed and viscosity.
Q3: Why do paper tubes delaminate in humid environments (e.g., sea freight, cold storage)?
A: Standard paper tube adhesives have limited moisture resistance. If the tubes are intended for use in humid conditions or cold chains, an adhesive with high water resistance must be used. For example, some high-performance modified vinyl acetate emulsions can maintain a high percentage of fiber tear even after 24 hours of water immersion, significantly improving the tube's compressive strength and stability in damp environments.
