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UV curing vacuum coating
Release time:
2024-04-12
At present, there are only a few plastic materials that can be directly vacuum-plated, such as PET coating, without surface coating. For most plastics, especially bulk engineering plastics, more used in the production of decorative commodity parts, cosmetic box covers, automotive spotlight covers, etc., these materials for the following considerations, the basic primer pretreatment process is used to enhance the coating effect or improve the performance of a certain aspect.
UV curing vacuum coatings
At present, there are only a few plastic materials that can be directly vacuum-plated, such as PET coating, without surface coating. For most plastics, especially bulk engineering plastics, more used in the production of decorative commodity parts, cosmetic box covers, automotive spotlight covers, etc., these materials for the following considerations, the basic primer pretreatment process is used to enhance the coating effect or improve the performance of a certain aspect.
1. Seal the substrate through the primer to prevent the volatile impurities in the substrate from escaping during vacuum coating, which will affect the coating quality.
2. The plastic surface is rough, and after the primer is pretreated, a smooth and smooth mirror effect can be easily obtained through the coating.
3. Pre-coating primer on the film material can strengthen the barrier property of the film in one step.
4. Pre-coating primer is conducive to obtaining a thicker vacuum coating, showing higher reflective effect and mechanical properties.
5. Some substrates with poor surface polarity have poor adhesion, and better coating adhesion performance can be obtained through primer transition.
6. For some plastic substrates with poor heat resistance, the primer can play a certain role in thermal buffering and protect the substrate from heat-induced deformation.
The general thickness of vacuum coating is only tens to hundreds of nanometers, and the mechanical properties such as wear resistance and bending resistance are difficult to meet practical requirements, and the metal coating is easy to be eroded by dirt when exposed to air, especially the coating, which is easy to be oxidized and corroded under the action of oxygen and water vapor, loses its luster, reduces its electrical properties, and has poor long-term durability of the coating. Therefore, when applied to decorative applications, it is generally necessary to apply a protective topcoat to the vacuum coating after the vacuum coating is completed. Sometimes an additional layer of overcoat is applied to the topcoat as needed. At this point, the complete vacuum coating structure should include a three-layer sandwich structure of primer-vacuum coating-topcoat.
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Company headquarters: 12th floor, office building b, aoyuan plaza, fengle road, pengjiang district, jiangmen city, guangdong province
Jiangmen factory area: Meidachong nanyang wai industrial zone, muzhou town, xinhui district, jiangmen city, guangdong province
Yunfu factory area: Dawan town dawan industrial park, yunan county, yunfu city, guangdong province
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