Food-grade silicone key chain three-dimensional embossed process

The three-dimensional embossing process flow of food-grade silicone key chains

Mold preparation: Make molds based on the designed three-dimensional relief modeling. The quality of the mold directly affects the final product effect. It is necessary to ensure that the mold surface is smooth, the dimensions are precise, and it can fully present the details of the relief.

Silicone gel blending: Use food-grade silicone gel raw materials and mix and stir components A and B in a certain proportion. When stirring, do it in the same direction. This can reduce the formation of bubbles and make the texture of the silicone uniform. Stir until fully integrated, with no obvious particles or color differences.

Defoaming treatment: Perform defoaming operations on the prepared silica gel. Silicone can be placed in the refrigerator to chill for a period of time, and the low temperature can cause the bubbles to contract and burst. If there is a vacuum machine, it can also be directly used to create a vacuum, quickly and effectively removing air bubbles to ensure that the product surface is free of air bubble defects.

Silicone injection: Slowly pour the defoamed silicone into the prepared mold. During the injection process, it is necessary to pay attention to controlling the flow rate and volume of the silicone to avoid the formation of bubbles or overflow of the mold. The amount of silicone injected can be reasonably determined according to the size of the mold and the complexity of the embossing to ensure that the silicone can completely fill the mold and form an appropriate thickness.

Curing and molding: Place the mold filled with silicone on a flat surface and let it cure naturally. The curing time is affected by factors such as the type of silicone and ambient temperature, generally ranging from several hours to tens of hours. During the curing process, it is necessary to avoid the mold being disturbed by external forces to ensure the integrity of the relief shape.

Demolding treatment: After the silicone is completely cured, carefully remove the product from the mold. When demolding, operate gently to prevent damage to the detailed parts of the relief. Some auxiliary tools, such as release needles, can be used, but be careful not to scratch the surface of the product.

Post-processing: Necessary post-processing is carried out on the products after demolding, such as trimming excess corners and grinding the surface to make it smoother, etc. According to the design requirements, the relief parts can also be colored, sprayed and other treatments to enhance the visual effect of the product.

Key points of the three-dimensional relief process for food-grade silicone key chains

Material selection: Food-grade silicone that meets food safety standards must be selected to ensure that the product does not release harmful substances when in contact with daily items such as keys and may occasionally come into contact with the human body, safeguarding the health of the user.

Modeling design: Three-dimensional relief modeling should be unique and attractive. It can be combined with current popular elements, cultural symbols or personalized designs to meet the aesthetic needs of different consumers. At the same time, the complexity of the design and the matching degree with the production process should be taken into consideration. Excessively complex designs may increase the production difficulty and cost.

Detail handling: Emphasize the detailed expression of the relief, such as the smoothness of the lines and the clarity of the patterns. During the mold making and silicone rubber molding processes, every link must be strictly controlled to ensure that every detail can be perfectly presented and enhance the quality sense of the product.

Color matching: Select an appropriate color scheme based on the characteristics of the design and the target audience. Food-grade silicone can achieve rich color effects. We should fully utilize this advantage to make the product more eye-catching and aesthetically pleasing visually. The color matching should be harmonious and unified, avoiding being overly garish or dazzling.

Quality control: Throughout the entire production process, a strict quality control system should be established. From raw material inspection, production process monitoring to finished product inspection, every link must be strictly controlled to ensure that the products meet quality standards and reduce the rate of defective products.