Is the inner lining of the certificate envelope fixed with hot melt adhesive particles? List of mounting processes for graphic and text stores

Conclusion

The envelope of honor certificates, graduation certificates, and appointment letters often needs to be fixed with an inner lining board or insert bagHot melt adhesive granulesDot coating fixation is faster than white latex and firmer than double-sided tape. Here is a list of mounting procedures that graphic stores can follow.

Materials and Preparation

• Confirm the material of the envelope: copperplate paper, expanded paper, or laminated cardboard, with different surface properties and adhesive choices.
• The inner lining board is cut in place, with edges 1-2mm smaller than the inner frame of the envelope to avoid bulging.
• Confirm that there is no moisture or impurities before using the adhesive particles on the machine, and set the desktop adhesive installation machine at 165-175 ℃.

Point coating fixation process

1. Apply a small amount of glue to the four corners and midpoint of the inner pages of the envelope, without fully coating, leaving room for expansion and contraction.
2. Align the inner lining panel and lightly press it for 3-5 seconds, then firmly adhere it while hot to avoid displacement.
3. The insertion bag should be fixed on both sides first and then sealed at the bottom to prevent the opening from curling up.
4. The finished product should be flattened for a moment before being placed upright, and the adhesive layer should be completely cooled before being subjected to force.

Quality Inspection Checklist

FAQ

Q: What glue is used for the leather cover?
Answer: There is a coating on the surface of the parchment paper. Choose the adhesive with the correct coating and make a sample to confirm that it does not peel off.

Q: Is it worth using a glue machine for small quantities?
Answer: It is also possible to manually glue dozens of books, and then machine them in batches; Guangzhou Sunlife TradingSunlife Hot Melt AdhesiveThe quick printing series of pictures and text is available in small packages, and there is no pressure to try out orders.

The certificate cover is fixed by “point coating on the four corners+light pressure alignment+flat pressure cooling”. Follow the list and mount it firmly without warping the edges.