Method for preparing plastic antibacterial elastic paint spectacle frame

Abstract

The invention discloses a method for preparing a plastic antibacterial elastic paint spectacle frame and aims to provide the economic and environmental-friendly method for preparing the plastic antibacterial elastic paint spectacle frame. The key points of the method are that the method comprises the following steps of: 1, preparing a mixed solvent, i.e. mixing propylene glycol methyl ether acetate with butyl ester to obtain the mixed solvent; 2, blending paint, i.e. adding nano titanium dioxide and nano silver into the mixed solvent obtained in the step 1, adding polyether polyurethane and acuring agent after uniformly stirring, and uniformly stirring again to obtain the paint; 3, spraying, i.e. after spraying the paint blended in the step 2 on a plastic spectacle frame, placing the plastic spectacle frame in the air to naturally air-dry the plastic spectacle frame; and 4, lighting, i.e. after the paint is cured on the spectacle frame, placing the spectacle frame under an ultraviolet lamp to irradiate the spectacle frame. The invention belongs to the technical field of preparation of the spectacle frame.

Description

technical field [0001] The invention relates to a method for preparing a spectacle frame, in particular to a method for preparing a plastic antibacterial elastic paint spectacle frame; it belongs to the technical field of spectacle frame preparation. Background technique [0002] At present, the coating application of elastic lacquer eyeglass frames has a smooth touch effect due to the molecular structure of the resin. At the same time, the eyeglass frames do not have antibacterial effects. The wearer generally does not wash them after wearing them for a long time, which is easy to breed bacteria, which is not conducive to wearing the health of the patient. [0003] The general method of coating the existing plastic elastic paint spectacle frames: add toluene, butyl ester, mixed solution, curing agent, and polyether polyurethane into the polyether polyurethane and stir evenly, then spray it on the spectacle frame, and generally pass through the natural temperature at room te...

AI Technical Summary

Problems solved by technology

The hardening of the paint film is mainly formed by the reaction between the curing agent and the solvent and the paint. However, since the elastic paint is a polyurethane product, there are special requirements for the use of solvents: that is, solvents or alcohols with too high water content should not be used. Otherwise, It will cause the curing agent to react with the water first after spraying and cause the surface of the paint film to not dry. However, the spectacle frame does not have antibacterial effect, and the wearer is prone to breed bacteria after wearing it for a long time, which will cause certain damage to the wearer's health.

[0004] Chinese patent CN101551524 discloses a method for preparing an antibacterial spectacle frame. Although the spectacle frame prepared by this method has certain antibacterial properties, methanol is used as a dispersant in the production process, so that it can be mixed with trimethylolethane, nano Titanium dioxide and nano-silver powder are mixed, but because of its high water content, the solvent requirements for the existing spraying elastic paint cannot be reached, and toluene and methanol are used as solvents, and long-term exposure has a greater impact on human health and the environment. Larger pollution

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