The Research Of Non-benzene Gravure Ink In Plastic Film Printing

At present, our country still uses benzene type solvent printing ink in plastic film printing and in the printing ink preparation. As a result of benzene solvent volatilization, it causes the very big harm to operator's health, at the same time also gives the huge pressure to the environmental protection. In addition, because the benzene solvent volatilize slowly, it is extremely easy to remain in the dry printing ink film, will pollute the package food and bring the harm for people.Non-benzene solvent ink for plastic film printing is able to effectively solve the problems of benzene type solvent printing ink to the environment. The advanced country already began the actual non-benzene solvent printing ink production and use. But our country is still at the research and development stage because of various factors influence. The non-benzene solvent ink still depends upon the import. Therefore, the research and development of non-benzene solvent ink have the important practical significance and the practical value.After the widespread investigation and the pre-research work, we use the analysis and the experimental technique, made the research and development of non-benzene solvent ink in many ways, we choice ethyl alcohol, the isopropyl alcohol, the ethyl acetate, the butyl acetate and so on to the environment friendly solvent, compound the component solvent, and tested the basic performance of different allocated proportion component solvent to the boiling point, the surface tension and so on. The selected component solvent can be used for dissolving the resin and can be taken for the printing ink production. Using the physical disperser grind method, we mixed the pigment, the linked and assist material, made the laboratory sample. This printing ink sample meets the requirement.We select the polyamide resins, the polyurethane resin mixed with isopropyl alcohol and ethyl acetate component solvent, form the plastic printing ink of non-benzene solvent, use the IGT printability meter, the transmission density meter, the magnetic force mixer and many kinds of measuring instrument, measure the sample printing ink printed on the commonly used package printing film. The performance, the printability and the color characteristic of non-benzene solvent ink for plastic film printing were researched with the development printing ink sample.Our research get the optimized formula of non-benzene plastic printing ink sample, can satisfy the actual production request after the actual in-plant printing test.