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Spray UV light oil surface easy cut how to solve
Mobile phone shell spraying black specular products UV easy to scratch the surface of the problem?
User question:
It was difficult in the mobile phone shell spraying black specular products to avoid the problem of dirt and scratches, do you have any good method to control? Note: when making high-end notebook computer accessories also often encounter these problems.
Recommend a solution:
1, black substrate uv highlights in the process of hardening is difficult to completely hardened like light color material, the reason may be that black material absorbs the uv light energy, flow leveling can shorten the time and improve the flow leveling temperature, to avoid the wet film into the oxygen, with strong uv radiation energy.
2, highlights the UV is very difficult to do, the energy demand is high, and pitting particles is very much, it is hard to avoid, can strictly control the production process. In addition, about the problem of pollution, can choose the relatively small surface tension of the UV, such as fingerprints of UV resistance.
3, with a neutral wax is a good idea, we spray on mirror product UV, slight friction will have obvious traces of paint is more obvious than highlight, would be much better after the wax, moreover, had better use high-energy black short curing time, otherwise the deformation does not necessarily cure completely.
4, A, find resistance to fouling Oligomer as main body
B, improve the degree of crosslinking reaction (by official Oligomer + Monomer)
C, add the agent such as BYK or Cytec 333 333.