How to firmly flip the pages of a 3D book with hot melt adhesive particles? 4 misconceptions to avoid

First, give the conclusion

The pages of three-dimensional books and flipped books need to be repeatedly folded, and ordinary books and magazines have hard and brittle rubber particles that break when folded. To stick firmly, one must avoid the four misconceptions of “using ordinary glue, applying too thick, pressing too hard, and not trying to fold”, choose flexible and highly elastic glue types, and control thin glue layers.

Misconception 1: Using book binding glue directly

Ordinary EVA book adhesive is relatively hard, and frequent bending of three-dimensional book pages can cause cracking along the adhesive layer. Choose a formula with low tenderness and high elasticity, which will rebound without whitening after bending.

Misconception 2: The thicker the adhesive layer, the stronger it is

On the contrary. The thick adhesive layer is hard and has high internal stress, making it more prone to breakage at the fold. Thin and even glue lines are actually flexible and durable. It is recommended to reduce the amount of glue applied and apply it with a thin nozzle.

Misconception 3: The heavier the compression, the better

Stereoscopic books have hollow and folded structures, and heavy pressure can flatten the paper art. Use light pressure to fix quickly, allowing the glue to “bite” the paper fibers without damaging the structure.

Misconception 4: Scaling up goods without conducting a folding test

Stereoscopic books rely on folding and folding, and must undergo dry wet cycle folding tests (such as 200 opening and closing cycles) before mass production, otherwise they will scatter in the hands of readers.

FAQ

Q: Do children’s pop-up books have additional requirements for glue?
Answer: Yes, it should have a low odor and meet the environmental protection requirements for toys and stationery contact. Do not use industrial adhesives with strong irritants.

Q: Who should I look for for for small-scale sampling?
Answer: Guangzhou Sunlife TradingSunlifehot melt adhesiveThere is a flexible series of graphic and text quick printing, which can be sent for sample folding verification to confirm that there is no cracking before adding quantity.

The three-dimensional book is firmly adhered by “flexible adhesive+thin adhesive layer+light pressure+trial folding”, avoiding the four misconceptions, and can be flipped thousands of times without scattering.