What are the factors that affect the bonding effect of hot melt adhesive particles?

.  Plate

1.  Polarity: Optical spins attract each other, making it easy to use adhesives and printing plates with similar optical spins.

2、 Close proximity: Loose pieces also have water permeability, requiring short charging time and high working pressure; High density is the opposite.

3、 Interface tension: Insufficient interface tension can affect wetting and adhesion. Corona treatment, grinding, and polishing are beneficial for improving adhesion.

4、 Printing ink: The optical activity, affinity, dispersibility, and bonding effect with the base paper of printing ink can all affect the bonding effect of hot melt adhesive particles.

5、 Environmental temperature: If the ambient temperature of the board is too low, it will affect the penetration, opening time, and adhesive penetration. If there is too much, it will increase the drying time.

6、 Moisture, surface modifiers (such as talcum powder), and environmental pollution: severely damage the compressive strength of the adhesive.

7、 Absorption and migration characteristics: seriously affect the brittleness and cohesion of hot melt adhesive particles.

2. Adhesive

1、 Viscosity: Hot melt adhesive affects fluidity, hydrophilicity, coloring characteristics, adhesive temperature, wire tension, mold clamping force, etc.

2、 Softening point: affects the temperature, temperature resistance, drying speed, etc. of the adhesive.

3、 External opening time: affects the acceptability of actual operation, the permeability of acid, and the compressive strength of the binder.

4、 Drying speed: affects the production speed and compressive strength of the adhesive.

5、 Affinity: Affects the compressive strength of the adhesive.

6.  Continuity: Has an impact on metastatic cancer, tensile strength, or tendon transection.

7、 Thermal adhesion force: affects the bonding effect.

8、 Heat resistance, etc.: affects the temperature that the adhesive management system can withstand.

III. Machinery and Processing Technology

1.  Speed: High speed production lines usually reduce the opening time requirement, but increase the drying rate requirement.

2、 Adhesive temperature: The temperature of the adhesive used for peeling will increase the opening time and decrease the drying speed.

3、 External opening distance: External opening distance/production line speed=machine equipment opening time, higher than hot glue opening speed.

4、 Work pressure: Adequate work pressure is beneficial for the penetration, permeation, and drying of hot melt adhesive particles.

5、 Maintenance time: The design of the plan should ensure that the maintenance time of the machine equipment is longer than the drying time of the hot glue.

6、 Using mold clamping force: Expanding the clamping force can replace the infiltration and penetration of glue, increase the mold opening time, slow down the drying speed, and dry faster.