The hottest silk screen printing ink for plastic a

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Screen printing ink for plastic and paper packaging is a more traditional printing process. Although the proportion of printing in the whole printing market is very small, its development speed has been ahead of flat, convex, concave and other printing methods since the 1980s. The annual growth rate of advanced countries in the world has reached 8%~10%. In case of power shortage, there are more than 260 printing equipment and equipment manufacturers in China, with about 150000 employees, producing about 50 kinds of silk printing products, and the annual consumption across the country is about 50000 tons. In recent years, with the continuous improvement of people's living standards, everyone's requirements for packaging are no longer limited to protecting goods and facilitating transportation, but also put forward higher requirements for packaging, decoration and shape design

as an emerging technology industry, silk printing has a wide range of printing materials, which are widely used in packaging, including plastic, paper, metal, glass, ceramics and various composite packaging materials. The following describes the application of two kinds of inks in printing and packaging materials:

first, the application of plastic packaging

the commonly used materials for plastic packaging are: Polyethylene (mainly high-pressure and low-pressure polyethylene), polypropylene, polyvinyl chloride, polyvinylidene chloride and polyester. Most of the silk printing inks used in plastic packaging are volatile and dry. They are required to have good printing leakage, fluidity, troubleshooting of mechanical fatigue spring testing machine, adhesion resistance and adhesion

II. Application on paper packaging

due to the thick ink layer and strong three-dimensional sense of the printed pattern, the grade of the packaging can be greatly improved. General paper packaging materials commonly used are mainly medium and high-grade paper and paperboard. Speaking of production and manufacturing, such as glass paperboard, gold paperboard, silver paperboard, etc. It is characterized by small fiber pores and tight texture. This series of inks are required to have light resistance, heat resistance, solvent resistance and abrasion resistance in printing

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