In-mold integral pattern forming technology for silica gel watch band with large radian surface

Abstract

The invention belongs to the technical field of in-mold transfer printing molding of silica gel finished products, in particular to an in-mold integral pattern forming technology for a silica gel watch band with a large radian surface. The in-mold integral pattern forming technology for the silica gel watch band with the large radian surface includes the following steps that step 1, an environment-friendly treatment agent A is adopted to conduct coating on the back face of a PET; step 2, a first coating drying is conducted; step 3, an environment-friendly treatment agent B is adopted to conduct coating on the front face of the PET; step 4, a second coating drying is conducted; step 5, an environment-friendly treatment agent C is adopted to conduct coating on the front face of the PET; step 6, a third coating drying is conducted; step 7, a 4 + 1 type Heidelberg printing press is adopted to conduct color printing to print a pattern; step 8, environment-friendly glue A is printed, and a fourth coating drying is conducted; step 9, environment-friendly glue B is printed, and a fifth coating drying is conducted; step 10, punching and cutting are conducted according to a mold structure and a product structure after the step 9; step 11, oil pressing forming is conducted on silica gel; step 12, desulfurization treatment is conducted by adopting a vulcanization technology; step 13, quality detection is conducted after the step 12; step 14, punching is conducted after the quality detection; step 15, hand feeling oil is coated on the surface; and step 16, quality determination is conducted. According to the in-mold integral pattern forming technology for the silica gel watch band with the large radian surface, integral production is achieved, the pattern can be printed on the large radian surface of the product, and perfect combination with the silica gel can be achieved.

Description

Technical field [0001] The invention relates to the technical field of in-mold transfer molding of silicone finished products, in particular to a process for forming a large-mold integrated pattern on the curved surface of a silicone watchband, in particular, to a smart wearable product that integrates a large-mold curved surface of the silicone watchband. Pattern forming process. Background technique [0002] 1. At present, some technologies mainly use flat or small radian (within 1mm) in-mold integral molding technology. 2. The water paste transfer process can achieve large arcs. The disadvantages are as follows: 1. The limitations of the in-mold products are small, resulting in many products that cannot be realized. 2. Products with a radian surface greater than 2mm in the mold cannot be produced. 3. The sharpness of the pattern on the water paste transfer process cannot be the same as the in-mold integral molding. 4. High cost and low efficiency. Summary of the invention...

AI Technical Summary

Problems solved by technology

2. The water sticker transfer process can achieve a large arc, and the disadvantages are as follows: 1. The limitations of in-mold products are small, resulting in many products that cannot be realized

2. Products with a curved surface greater than 2MM in the mold cannot be produced

3. The clarity of the pattern by the water decal transfer process cannot reach the same as the integral molding in the mold

4. The cost of water stickers is high and the efficiency is low

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