Thin film coating and preparation method thereof

Abstract

The invention relates to a thin film coating and a preparation method thereof. The thin film coating is prepared from, by weight, 80-120 parts of polyvinyl alcohol, 500-700 parts of purified water, 2-5 parts of stilbene flourescent whitening agent, 0.5-2 parts of polyoxyethylene-polyoxypropylene segmented copolymer and 0.2-1 part of high-alcohol fatty acid ester compound antifoaming agent. The preparation method of the thin film coating comprises the following steps that the raw materials are mixed and put in a sealed reaction kettle for a smelting reaction for 0.5-2 hours at the temperature of 150-400 DEG C, the reaction liquid is taken out, cooled to room temperature and sprayed on backing paper, and the thin film coating can be obtained. When the thin film coating prepared through the method is applied to a photo, the image of the photo can have high corrosive resistance, is resistant to ultraviolet corrosion, looks new all the time, never fades and does not become yellow, the strong three-dimensional sense can be further enhanced, and an unexpected effect is achieved.

Description

technical field [0001] The invention relates to a protective film, in particular to a film coating and a preparation method thereof. Background technique [0002] With the continuous improvement of people's living standards, people have higher and higher requirements for some advertisements and photos. Because advertisements, especially outdoor advertisements, are affected by weather such as wind, sun, rain forest, etc., it is easy to cause pollution or get wet, making outdoor advertisements The lifespan is affected, and items such as photos will fade and yellow after being stored for a long time. In order to make the life of outdoor advertisements longer, the photos can be highly anti-corrosion and anti-ultraviolet erosion. The use of thermoplastic sealing requires equipment to be heated and is inconvenient to operate; however, the existing film has low light transmittance, and the screen will be blurred when it is covered. Contents of the invention [0003] The object ...

AI Technical Summary

Problems solved by technology

[0002] With the continuous improvement of people's living standards, people have higher and higher requirements for some advertisements and photos. Because advertisements, especially outdoor advertisements, are affected by weather such as wind, sun, rain forest, etc., it is easy to cause pollution or get wet, making outdoor advertisements The lifespan is affected, and items such as photos will fade and yellow after being stored for a long time

In order to make the life of outdoor advertisements longer, the photos can be highly anti-corrosion and anti-ultraviolet erosion. The method of thermoplastic sealing requires equipment to be heated and is inconvenient to operate; however, the existing film has low light transmittance, and the screen will be blurred when it is covered on the screen