Environment-friendly adhesive for carton printing and preparation method thereof

Abstract

The invention relates to the technical field of adhesives, in particular to an environment-friendly adhesive for carton printing. The adhesive is prepared from the following raw materials in parts byweight: 50-65 parts of polyethylene glycol, 20-30 parts of aluminum potassium sulfate, 15-20 parts of emulsified silicone oil, 5-10 parts of amino resin, 10-15 parts of cationic non-starch polymer, 120-150 parts of polyvinyl acetate emulsion with the concentration being 30%, 200-250 parts of water, 5-15 parts of a waterproof agent, 10-20 parts of a tackifier and 20-26 parts of alumina-loaded bentonite. The invention further provides a preparation method of the environment-friendly adhesive for carton printing. The adhesive can be rapidly melted when being heated at a low temperature; viscositychanges are kept small within a wide temperature range; and when the melt is separated from a fixing roller, the melt strength is high, and solidification is rapid; the adhesive can be widely appliedto printing of various cartons, can fully meet the requirements of electromagnetic induction heating equipment for improvement in recent years such as high speed and low-temperature photographic fixing, has market prospects and is suitable for popularization.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to an environmentally friendly adhesive for carton printing and a preparation method thereof. Background technique [0002] Cardboard is also called cardboard. A thick paper sheet made of various pulps with interwoven fibers. The difference between cardboard and paper is usually distinguished by weight and thickness. Generally, those with a weight of more than 250g / m2 and a thickness greater than 0.5mm are called cardboard (otherwise: paper with a thickness greater than 0.1mm is generally called cardboard. Generally, the weight is less than 250g / m2 m2 is considered paper, and those with a basis weight of 250g / m2 or above are considered cardboard). Before the cardboard leaves the factory, it is often printed. In the existing technology, water-based ink is used for environmental protection, but there is a problem with water-based ink. The bonding force between the ink and the pape...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the disadvantages of poor environmental performance and poor low-temperature fixability of existing printing adhesives in the prior art, and propose an environmentally friendly adhesive for carton printing and its preparation method