What hot melt adhesive particles are used for digital printing adhesive packaging? Step by step selection and adhesive testing guide

Special features of digital printing adhesive packaging

Quick print shops often accept digital printed sample books, brochures, and bidding documents. This type of print has a thick ink layer and a digitally processed paper surface, making it more difficult to stick than traditional offset printing. select Hot melt adhesive granules To determine the stickiness of ink, one should not follow the traditional formula set for books and magazines.

Step by step selection

• Step 1: Confirm the paper. Copperplate, matte powder, and adhesive backing card have different adhesive properties.
• Step 2: Look at the ink surface. If there are many pages with large areas of full ink, priority should be given to high penetration and high initial adhesion models.
• Step 3: Set the line speed. Quick printing is mostly for small batches and multiple batches, selecting materials with moderate opening time and not easy to draw.
• Step 4: Sample testing of adhesive. Take an actual printed product, glue it according to the official parameters, and perform a “page pulling test”.

Judgment criteria for adhesive testing

Sunlife Hot Melt Adhesive has launched specialized granules for digital printing surfaces for graphic and text fast printing. Guangzhou Sunlife Trading supports free glue testing according to your commonly used paper patterns, and writes the parameters into the store’s “Glue Assembly Operation Card”. Even beginners can get it right in one go.

Frequently Asked Questions

Q1: Why are pages with full ink prone to falling off?
The ink film isolates the adhesive from the paper fibers, requiring higher penetration or deeper milling back.

Q2: What if multiple types of paper are mixed in one book?
Choose the glue that is the hardest to stick, and then adjust the amount of glue applied.