Self-adhesion label for laser etching and preparation method thereof

Abstract

The invention discloses a self-adhesion label for laser etching and a preparation method of the self-adhesion label for laser etching. The label comprises a black face layer, a white bottom layer, a transparent adhesive layer and a strippable layer, wherein laser etching is conducted on the surface of the black face layer; the white bottom layer is bonded under the black face layer tightly in a face-to-face mode; the transparent adhesive layer is coated to the lower surface of the white bottom layer; the strippable layer is laminated to the lower surface of the transparent adhesive layer. The black face layer is formed by coating and drying black oil ink paste, wherein the black oil ink paste comprises, by weight, 40-60 parts of polyurethane resin, 15-30 parts of black color paste, 8-20 parts of amino resin and 10-25 parts of solvents. According to the self-adhesion label for laser etching and the preparation method, resin and cross-linking agents are screened and react with each other in a high-temperature cross-linking film forming mode to form a film coating, the film coating has the advantages of being excellent in high-low temperature resistance, solvent resistance, weather resistance, wear resistance and scraping resistance and good in bonding performance, necessarily destroyed when being stripped and capable of achieving the anti-fake function and being used for laser etching, and the preparation method is low in preparation cost and high in production flexibility.

Description

technical field [0001] The invention relates to a self-adhesive label, in particular to a laser-etched self-adhesive label and a preparation method thereof. Background technique [0002] Ordinary self-adhesive labels are easily damaged under conditions such as high or low temperature or organic solvents, water vapor, etc., and cannot meet the quality requirements of labels used outdoors or important signs such as automotive engine nameplates and VIN vehicle identification numbers. The surface of the label must be free of blemishes, and the film must be free of such things as pores and impurities. The label must be firmly attached to the surface specified in the drawing, and must not be wrinkled, curled, torn or peeled off. The protective film must be able to prevent contamination of the adhesive material and accidental sticking, and the protective film must be easily peeled off from the finished label without any pretreatment for this. It must be ensured that the label wil...

AI Technical Summary

Problems solved by technology

[0002] Ordinary self-adhesive labels are easily damaged under conditions such as high or low temperature or organic solvents, water vapor, etc., and cannot meet the quality requirements of labels used outdoors or important signs such as automotive engine nameplates and VIN vehicle identification numbers

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