The Most Concerned Issues In Hot Melt Glue Production Process | JCT Machinery

1. How to control the viscosity and fluidity of hot melt glue?

Viscosity and fluidity directly affect the coating performance and final bonding effect of hot melt glue. During the production process, it is necessary to reasonably control the formula, temperature and stirring speed to ensure that the colloid has appropriate rheological properties to meet different application requirements.

2. How to optimize the formula of hot melt glue to meet different application requirements?

Different applications (such as packaging, electronic packaging, furniture edge banding, etc.) have different requirements for hot melt glue. Common adjustment methods include:

• Base material selection (EVA, polyamide, polyolefin, etc.)

• Tackifier (improve initial adhesion)

• Filler (adjust harness, cost)

• Antioxidant (improve weather resistance)

3. How to prevent hot melt glue from discoloring or degrading during production?

High temperature heating may cause oxidation, charring, discoloration or performance degradation of hot melt glue. The main preventive measures include:

• Accurate temperature control (avoid long-term high temperature exposure)

• Add antioxidants (such as BHT, phosphite antioxidants)

• Use inert gas protection (reduce oxidation)

4. How to ensure that hot melt glue produced has consistent quality?

To ensure product quality consistency, it is necessary to control multiple factors such as formula stability, mixing uniformity, temperature control, and discharge method. In addition, the use of automated hot melt glue production lines and quality inspection systems can greatly reduce human errors and improve product consistency.

5. Is cooling equipment needed during the production process?

Hot melt glue needs to be quickly cooled after discharge to form. Common cooling methods include:

• Air cooling (suitable for thinner coating or small batch production)

• Water cooling (suitable for large-scale production, such as granular hot melt glue, bulk hot melt glue, hot melt glue stick, pillow hot melt glue, etc.)

• Cooling roller (improve cooling efficiency, suitable for sheet or film hot melt glue production)