Water-based laser packaging glue used for cigarettes and preparation method thereof

Abstract

The invention relates to a water-based laser packaging glue used for cigarettes and a preparation method thereof. The water-based laser packaging glue consists of the following components: a VAE emulsion, nano alumina / crystal alumina, calcium chloride, polyvinyl alcohol, alcohol, a nonionic emulsifier, an environmental protection agent, a preservative, and water. Compared with the prior art, the water-based laser packaging glue has the characteristics of fast drying speed, strong cohesive force, good fluidity, no toxicity, no odor, no corrosion, no burning, and storage resistance. The productquality and various technical performance indicators are superior to similar products, especially in terms of drying speed, bond strength and fluidity, which can be increased by 60% based on the past.The water-based laser packaging glue strictly implements the requirements of the People's Republic of China tobacco industry standard-Volatile and semi-volatile components of tobacco water-based glue, formaldehyde is less than 20ppm, ethyl acetate is less than 400ppm, and the water-based laser packaging glue is inspected by the National Tobacco Quality Supervision and Inspection Center.

Description

technical field [0001] The invention relates to a packaging adhesive, in particular to a water-based laser packaging adhesive for cigarettes and a preparation method thereof. [0002] Laser holographic anti-counterfeiting (laser anti-counterfeiting) technology is internationally recognized as a promising anti-counterfeiting technology and a new type of anti-counterfeiting packaging material. It utilizes the peelable property of the laser-coated aluminum layer to transfer the laser-effected aluminum-coated layer to paper or other packaging materials through an adhesive to achieve a specific effect. Packaging glue plays an important role in this process. Background technique [0003] With the release of the latest tobacco water-based adhesive standards, the requirements for VOC control are higher, and higher requirements are put forward for the technical indicators of benzene and benzene series, phthalates, formaldehyde, and vinyl acetate. The residual amount of vinyl acetat...

AI Technical Summary

Problems solved by technology

The initial formaldehyde glue, oily glue, and starch glue are made of formaldehyde, organic solvents, and starch as the main raw materials. The residual formaldehyde in formal glue is difficult to remove, and it is difficult to meet environmental protection requirements. Oily glue has good performance, but Contains organic solvents that do not meet the requirements; starch glue has poor cohesive force, and it is difficult to meet the requirements of high-speed machinery after a short storage time; although the existing VAE emulsion glue has excellent performance, it still has poor initial viscosity and low bond strength , slow drying speed, which limit its wide application

These disadvantages have brought low production efficiency and increased defective rate, making it difficult to meet the needs of today's market

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