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There are two technical routes for bonding hardcover book covers:hot melt adhesive pelletsHot melt glue and cold glue (white latex/PVA) pasting. Both options have their own strengths, and which one to choose depends on your product positioning, equipment conditions, and production capacity requirements.
Hot melt adhesive granule schemeHeating the glue pot → Applying glue on the glue roller → Bonding the cardboard and cover → Pressing → Cooling and curing (the entire process takes 15-25 seconds)
Cold glue pasting scheme: Glue application → manual or mechanical brushing → bonding → pressing → natural air drying or drying (the whole process takes 3-30 minutes)
Q: Can the two schemes be mixed?
A: Okay. Some factories use cold glue to paste book covers and hot melt glue to pack book spines, each taking their own strengths.
Q: Will there be glue line marks on the hot melt adhesive particles sticking to the hardcover cover?
A: If you choose the right model and control the amount of glue applied, you won’t. Sunlife hot melt adhesive particles come in transparent and light colored models, with almost invisible adhesive lines.
In many manufacturing scenarios such as book binding, color printing packaging, cardboard box leather goods, paper cultural and creative industries, granular hot melt adhesive has long become a “necessary auxiliary material” for automated production lines.Compared to liquid glue, granular hot melt adhesive is solvent-free, fast curing, stable viscosity, and low loss. It is suitable for […]
< p > < strong > < a href = "https://www.sunlife888.com/en/" > < / a > hot melt micelle advantages: < / strong > < / p > Hot melt adhesive granules are a cost-effective form of hot melt adhesive. It can be used in large-scale automated systems to reduce labor and enhance productivity. There […]
In the printing and binding, paper packaging, and pearl cotton processing industries, hot melt adhesive is an essential core auxiliary material in production. Many bosses are indecisive when choosing adhesive: should EVA hot melt adhesive or PUR hot melt adhesive be used? Actually, forRegular book binding, cardboard packaging, pearl cotton bonding, quick printing of graphics […]
First, provide a reference scale Based on the estimation of 1 gram of glue consumption per common small and medium-sized cardboard box and single box, one tonHot melt adhesive granulesApproximately one million boxes can be sealed; A single box consumes 2 grams of glue, which is about 500000 pieces. The reason why the range is […]
