What is hot stamping silicone sheet
Hot stamping silicone sheet is mainly used in industries such as plastic toys, craft gifts, hardware and electronics, and special printing. It uses silicone sheet as a heat carrier to transfer exquisite patterns onto products. Colors include red, orange, coffee, etc.
Product Usage: Mainly used for special high-temperature resistant products, hot stamping plates, hot stamping silicone rollers, heat transfer printing, etc
Product features: High temperature resistance of 350~400 ℃, hardness requirements can be determined according to customer printing pattern requirements. The general hardness ranges from 40A °, 50A °, 60A °, 70A °, and 80A °.
Operation method:
1. Open an aluminum mold, iron mold, or copper mold that can be closed up and down, like a box. A 2mm wide exhaust groove is surrounded by the lower mold plane of the mold to help expel the air from the mold during the pressing process.
2. First, clean the mold and apply a layer of release agent (which can be Vaseline or detergent) to the entire interior of the mold. After it dries, proceed with the following steps.
3. Fill the bottom of the mold with an aluminum plate (preferably with small holes or polished with roving paper to enhance the adhesion between the silicone and aluminum plates), place the aluminum plate in place, clean it thoroughly, and apply adhesive to the aluminum plate. The filled aluminum plate can be multiple pieces, and the one on top of Z is the one that really works. The purpose of filling multiple aluminum plates is to adjust the thickness of the pressed silicone plate and place the hot stamping silicone and aluminum plates together. Assuming the mold is 300 by 300, the cutting area of the silicone plate and aluminum plate is slightly smaller, leaving a width of 2 centimeters inside the mold to allow excess material and air to be discharged. This can prevent expansion after molding. Note: Applying water from heaven on the aluminum plate above Z can also help increase the adhesion between the silicone and the aluminum plate.
4. Cut the silicone, and the silicone plate Z is about 1 centimeter smaller than the aluminum plate because during the pressing process, the silicone will extend around it. Then slowly lay the silicone sheet from one end onto the aluminum sheet, and use a wooden stick to roll it from one end to the other on the silicone sheet. The purpose of doing this is to catch the air. This way, there will be no air or bubbles between the pressed silicone and aluminum plates, and the bonding effect will be better. Take the mold to the molding machine and press it. During the molding process, exhaust the mold 2 to 3 times. If the molding machine is equipped with a vacuum machine, evacuate it for 30 seconds while exhausting.
5. Under a pressure of 10 tons and a temperature of 160-250, after 20-30 minutes, pull out the mold, remove the hot stamping plate, and let it cool naturally.