Water-based transfer laser paint and preparation method thereof

Abstract

The invention belongs to the technical field of transfer paint, and in particular relates to water-based transfer laser paint and a preparation method thereof. The water-based transfer laser paint isprepared from following components in parts by weight: 30% to 60% of three-dimensional water-based polyurethane resin, 20% to 30% of water-based acrylic resin, 10% to 50% of deionized water, 1% to 3%of a film forming aid and 0 to 1% of a functional additive. For the preparation of the water-based transfer laser paint, the following steps are carried out: Step 1, preparation of a three-dimensionalprecursor; Step 2, preparation of a polyurethane prepolymer; Step 3, preparation of a three-dimensional water-based polyurethane resin; Step 4, preparation of water-based transfer laser paint; Step 5, filtering and removing the impurities to eliminate the bubbles, detecting and adjusting the viscosity of the water-based transfer laser paint to meet the requirements of application on a machine toachieve a finished product. The preparation method makes the paint have excellent coating performance, temperature resistance, moldability and printing adaptability by a reasonable combination of resins, thereby providing a brand new solution for the transfer laser paint in aspects of green property, safety and environmental protection.

Description

technical field [0001] The invention belongs to the technical field of transfer paint, and in particular relates to a water-based transfer laser paint and a preparation method thereof. Background technique [0002] Laser paper is widely used in various high-end packaging due to its colorful color effects, noble and beautiful metal texture, stable and reliable anti-counterfeiting, and degradable and recyclable environmental protection performance. Generally, there are two main production processes of laser paper: direct method and transfer method. The direct method has high requirements on raw materials and equipment, and it is difficult to realize high quantitative paper; the transfer method uses film as the medium to transfer laser information to paper. Wen laser effect design diversification advantages. [0003] At present, the coatings used in the transfer method are mainly solvent-based systems, which are coated on the base film by roller coating and dried and cured at...

AI Technical Summary

Problems solved by technology

[0003] At present, the coatings used in the transfer method are mainly solvent-based systems, which are coated on the base film by roller coating, and are dried and cured at high temperature to form a film. There are many problems in the use process: poor environmental performance and poor safety.

[0004] In the above patents, a lot of research and improvement have been done on the component selection and formula composition of water-based transfer laser coatings, but no in-depth research has been done on the molecular structure and characteristic application of the main resin. In application, there are problems such as poor leveling, insufficient scratch resistance, mold sticking or pasting, and low laser brightness. Therefore, water-based transfer laser coatings have not yet been applied in batches.