Red Liquid Pad Printing Ink for Durable Toy Printing Pads Contact Ms. Chen for Consultation 13662816580 (Same Number for WeChat)

Core Process of Making Toy Pads with Liquid Pad Printing Ink

 1. Injection and Molding Injection: Slowly pour the degassed ink into the preheated mold. The injection volume should fill the mold cavity and be slightly above the edge by 1-2mm to avoid material shortage in the pad;

 Secondary Degassing: After injection, place the mold back into the vacuum degassing machine for 5-10 minutes to eliminate bubbles generated during injection; Resting: Remove the mold and let it rest at room temperature (25-30°C) for 20-30 minutes, allowing the ink to flow naturally and fill the mold details.

 2. Curing and Molding Choose the appropriate curing method based on the ink type. Two common methods are as follows: Room Temperature Curing: Suitable for slow-drying ink. Place the mold in a ventilated, dry area and cure at room temperature for 24-48 hours. Avoid vibrations and temperature fluctuations during curing;

 High-Temperature Curing: Suitable for fast-drying ink. Place the mold in an oven and cure with staged temperature increases: First Stage: Maintain at 60°C for 1 hour for initial curing of the ink;

Second Stage: Maintain at 80°C for 2 hours to enhance the cross-linking degree of the pad; Third Stage: Maintain at 100°C for 1 hour for complete curing (specific temperature and time should be adjusted according to the ink instructions).

 3. Demolding and Post-Processing Demolding: After curing is complete, allow the mold to cool to room temperature (approximately 30-40°C). Use a specialized demolding tool (e.g., plastic pry bar) to slowly pry along the mold edge and remove the pad from the mold. Avoid excessive force to prevent deformation or tearing of the pad; Trimming: Use a sharp utility knife or scissors to trim the burrs and excess material from the edges of the pad, ensuring a neat shape; Surface Treatment: Gently sand the pad surface with fine sandpaper (800-1000 grit) to remove surface imperfections and improve ink adhesion during printing.