Plastic Products-Surface Finishing
Surface finishing was originally a surface protection technology that improved the corrosion resistance and abrasion resistance of the product by changing the mechanical, physical and chemical properties of the surface of the base material. Traditional surface finishing methods mainly include: galvanizing, electrophoresis, bluing, blackening, passivation, phosphating, spraying, coloring, baking varnish, impregnation, shot blasting and sandblasting. However, various surface processing technologies that are used in the decoration of the surface of metal, glass, plastic and other material components or other special functional requirements have been widely developed to achieve excellent performance in many aspects such as product corrosion resistance, appearance, texture, and function.
Example Appearance: color, pattern, logo, gloss\line (3D, 2D) Texture: feel, roughness, life (quality), streamline, etc. Function: hardening, anti-fingerprint, anti-scratch

Plastic Surface Finishing Technology
1、IMD(In-Mold Decoration)
Put the printed film into a metal mold, and inject the resin for forming into the metal mold to join the film, so that the printed film and the resin are integrated and cured. IMD includes IML (no stretch, small curved surface), IMF (high stretch product, 3D), IMR (surface film is removed, leaving only the ink on the surface). At present, IML and IMF are collectively referred to as IML in the industry.
Technical features 1. Exquisite decorative graphics and logos are hidden, and will not disappear due to friction or chemical corrosion. 2. The graphic, logo and color design can be changed at any time without changing the mold. 3. For products with three-dimensional shapes, the printing accuracy is accurate, with an error of ±0.05mm. 4. It can provide pictures and texts, and can mark the window effect of high light transmission. 5. The function buttons have uniform convex bubbles, good hand feeling, and the service life can reach more than 1 million times. 6. Three-dimensional changes can increase the designer's degree of freedom in product design. 7. The composite molding process achieves a seamless effect.
A coating method in which the paint is atomized by spraying tools such as a spray gun and sprayed on the workpiece to be coated. Technical features Advantages 1. Rich colors. 2. Processing in a liquid environment can achieve surface treatment of complex structures. 3. Mature technology and mass production. 4. It has unique transparency and high gloss. Disadvantages 1. The cost is too high, and low-cost positioning products are not suitable for this process. 2. The process is relatively complicated and the yield is low.

Make the plastic get a metal effect surface with higher yield and lower cost. Similar to PVD, PVD is a physical principle, and electroplating is electroless plating, which is mainly divided into vacuum electroplating and water electroplating.
Technical features Advantages 1. Weight reduction. 2. Overall cost saving. 3. Fewer processing procedures. 4. Simulate metal parts. Disadvantages 1. Including metal inserts cannot be changed during the molding process. 2. It is much more difficult to manufacture parts larger than 200 square inches by plastic mold than die casting. 3. There is a fire hazard when electroplated plastics are used in certain types of household appliances.

It is a process of printing the required patterns on the surface of plastic parts by means of pad printing, screen printing, and transfer printing. Pad printing
It is an indirect gravure head printing technology. The designed pattern is first etched on the printing plate, and the etching plate is coated with ink.Then the silicone head transfers most of the ink to the printed object. Screen printing
It is one of the main printing methods in stencil printing. The printing plate is a mesh, printing ink on the printing plate in the squeegee under the extrusion from the through hole part of the plate to the substrate. Missing printing on the substrate. Usually the printing plate is made of nylon, polyester, silk or metal mesh.
Transfer types Water transfer
It is a kind of printing that uses water pressure to hydrolyze the transfer paper/plastic film with color patterns. Thermal transfer
It is a technology that print patterns or designs onto heat resistant adhesive paper, and the ink layer pattern is printed on the finished material by heating and pressurizing.

5、Laser engraving
Laser engraving is also called laser marking. It is a process that uses optical principles to perform surface treatment. Similar to screen printing pad printing, laser engraving can be typed on the product surface or pattern. Technical features 1. Safe and reliable. 2. Accurate, meticulous, fast. 3. Low cost, economization and environmental protection.