Of course, in addition to these surface treatment methods, there are other surface treatment methods, here we first share the plastic spray paint or adhesive and UV vacuum coating when there is a bad surface, i.e., spray paint paint, bonding is not strong, and vacuum coating of oil spots and other issues such as oil spot solution.
Nylon and PP and other materials with low surface energy and low polarity usually spray paint on the surface will be due to poor adhesion performance and lead to paint problems, affecting the quality and effect of spraying. The traditional solution is to enhance the surface dyne value of the substrate through corona or flame treatment to improve adhesion, but the effect is unstable and uncontrollable, and the production process is complex. Simple and effective method is to enhance the interlayer adhesion between the plastic substrate and the paint coating through the Shizukawa plastic adhesion treatment agent to solve the problem of paint dropout, the BAG test up to 5B.
ABS, PC and other materials, the surface of the spraying generally do not have adhesion problems, but in the plating process, due to ABS, PC and other materials, more injection molding process, and sometimes the use of release agents or mold oil stains to the surface of the material, resulting in the surface of the material, and the surface of the material. Stained to the surface of the material, resulting in the surface of the oil spot oil nest and oil spots and other issues, common is to use white oil or 120 gasoline soak, has a certain degree of danger, and the effect is not ideal, simple and effective method is through the Jingchuan chemical plating oil treatment agent, cover the surface of the material oil, and at the same time enhance the adhesion, to solve the phenomenon of oil spots oil nests and oil spots and other phenomena.
Common plastic surface treatment agent way to summarize the classification:
One, frosted
Frosted plastic generally refers to the plastic film or sheet, extrusion molding sheet when the surface of the molding rollers have frosted pattern, so that in the process of cooling plastic naturally form a frosted pattern, this way is simple and fast, especially on the transparent products have a better effect
One. Polishing
The use of mechanical, chemical or electrochemical effects, so that the surface roughness of the workpiece is reduced to obtain a bright, flat surface processing methods. Plastic products generally use abrasive paper rolled up on plastic products for polishing, usually this is a step before spraying!
Three, spraying
Plastic spraying is mainly in the metal equipment or plastic products coated with a layer of plastic paint, and then coaxed to dry the operation, generally baked for about 10 minutes, thanks to the advancement of paint to achieve the same effect, and now do not have to paste the paper as before. Spray paint can play a role in isolating the air, spray paint and is an insulator so can play a role in plastic products anti-aging anti-static, the most important thing is to have the appearance of the plastic products themselves do not have the effect of the effect of the effect
. In the plastic surface of the spraying process to solve the problem of poor adhesion between the substrate and the coating of paint is an effective method of Jingchuan chemical adhesion treatment agent to enhance the adhesion between the substrate and the coating to solve the problem of paint, adhesion of up to 5B.
Four, silk screen
Printing plate is usually square in shape with a fine mesh screen, printing ink on the printing plate in the squeezing squeezes the ink board from the plate through the holes in the leakage part of the printing to the substrate. to the substrate. There are a variety of materials used to make screen plates, such as nylon (PA), polyvinyl acetate (CA), silk or metal mesh. If PC (polycarbonate) with this surface treatment, the color performance will be very ideal.
Fifth, pad printing
First, the design will be etched on the printing plate, the etching plate coated with ink, and then through the silicone head will be most of the ink transfer to the printed object.
Six, thermal transfer
The pattern will be pre-printed on the surface of the transfer film film, through the thermal transfer machine a process (heating and pressure) will be transferred to the transfer film on the surface of the product, molding the ink layer and the product surface into one, realistic and beautiful, and greatly improve the product's grade. However, due to the high technical content of the process, many materials need to be imported. Thermal transfer process used in a variety of ABS, PP, plastic, wood, coated metal and other product surfaces
seven, water transfer:
is the use of water pressure will be with a colorful pattern of the transfer paper/plastic film for polymer hydrolysis of a printing.
Eight, laser engraving
The use of laser energy will be processed into the surface of a "trace", revealing the surface of the next layer of material, according to the need for lettering or patterns.
Nine, electrophoresis (water electroplating)
Metal electrodeposition technology technology, one of the metal cladding process, usually with chromium, zinc and other metals through electrochemical deposition layer on the surface of the workpiece. Make the outside of the plastic parts become metal texture, and make the material corrosion and wear-resistant each with decorative and electrical, magnetic, optical properties. Plating process in the common material is ABS and PC, etc., but due to the material in the injection molding process, if the use of mold release agent or mold oil stains on the surface of the material, resulting in oil spots and oil spots and other phenomena, an effective solution is the Shizukawa chemical plating oil treatment agent, covering the material surface oil, alternative white oil immersion cleaning, enhance adhesion, to solve the problem of oil spots and oil spots and other issues.
Ten, vacuum coating
In the vacuum chamber of the material atoms from the heating source from the precipitation hit the surface of the plated object, this method can be obtained dazzling effect, applicable to ABS, PC plastic products. At the same time because of its complex process, environment, equipment requirements, generally applicable to large quantities of products.
Eleven, bite flower (etching, leather) for plastic mold
The use of concentrated sulfuric acid on the plastic molding mold internal corrosion, the formation of serpentine, etching, ploughing, wood grain, and other forms of grain, plastic molding through the mold, the surface has the corresponding grain.