Color printing lamination metal plate and preparation method thereof

Abstract

The invention provides a color printing lamination metal plate and a preparation method thereof. The color printing lamination metal plate comprises a metal substrate and a color film adhered to at least one side surface of the metal substrate in an adhesive-free way; the color film is a relief block film; and the one side of the color film adhered to the metal substrate has color patterns. The color printing lamination metal plate provided by the invention contains no adhesive, and the color patterns of the printing film are sealed between the film and the metal substrate, so as to significantly improve the safety quality of the color printing metal plate; and the preparation method of the color printing lamination metal plate does not cause tensile deformation of the color printing patterns in a lamination process, and no adhesive is used to adhere the color printing film to the metal substrate.

Description

technical field [0001] The invention relates to a film-coated metal plate and a preparation method thereof, in particular to a color-printed film-coated metal plate and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy, metal packaging materials, especially film-coated metal plates, occupy an important position in the packaging field due to their good airtightness, hard texture, good elasticity, good light-blocking properties, and good gas-barrier properties. As the process of preparing film-coated metal sheets (such as bonding method, melting method, etc.) matures day by day, people begin to study color-printed film-coated metal sheets with color graphic information and their preparation processes. [0003] Existing color-printed film-coated metal plates are usually prepared by the bonding method. Although the temperature of this method is lower when the color-printed film is attached to the metal plate, the color...

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Problems solved by technology

[0003] Existing color-printed film-coated metal plates are usually prepared by bonding. Although the temperature of this method is lower when the color-printed film is attached to the metal plate, the color-printed pattern is not easily deformed, and the process is easy to control. However, in this method The adhesive used in the process will pollute the environment, and the prepared color-printed film-coated metal plate cannot be used to prepare food cans that require high-temperature cooking

When the lamination method without adhesive is used to prepare the lamination of the color printing laminated metal plate, there will be a large film stretching, and the stretching degree is extremely unstable, which is very easy to cause stretching and deformation of the color printing pattern, and it is difficult to meet the requirements of the preparation of a color printing film. The quality requirements of the packaging cans for graphic information, so the commonly used method of preparing color-printed coated metal plates adopts the method of coating first and then printing, that is, the metal substrate is coated with a film (optical film) without color printing patterns, and then Then print color patterns on the outer surface of the film

The processing technology of this kind of printing coated metal plate, whether it is the printing process or the post-use process, will have VOC emissions, and the user needs to directly contact the ink and protective layer of the printing layer, or even directly contact with the mouth, resulting in the release of chemical substances. Emigration is harmful to the human body

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