Gravure alcohol ester argentine-soluble ink and method for making same

Abstract

The invention relates to a gravure alcohol and ester solvent silvery printing ink and is characterized in that the invention is made from materials matched according to the following weight proportion: 20 percent to 40 percent of special aluminum powder dispersion, 5 percent to 15 percent of alcohol and ester soluble resin, 50 percent to 60 percent of alcohol and ester solvent and 1 percent to 5 percent of addictive; a preparation method thereof is as follows: first, the aluminum power dispersion is immersed in the alcohol and ester solvent and then stirred evenly by a stick manually, carefully; the rest materials are added into the mixed solvent according to the proportion and stirred for 30 minutes in a blade-shaped mixer; at last, the obtained solvent is filtrated by using a filter screen and barreled. The invention has the advantages of having mirror-liked bright special printing effect with double use of surface printing and reverse printing compared with common silvery ink, having good stability of silvery ink to be difficult to deposit, containing no toxic solvent, being in favor of environment protection, slow stirring process, having simple process, and having low demandsfor a production device.

Description

technical field [0001] The invention relates to a gravure alcohol-ester-soluble silver ink and a preparation method thereof, which can be used for inner printing and surface printing of all conventional films, and can be used for various packaging and printing of candy, dried fruit, fast food light packaging, pharmaceutical packaging, cosmetic packaging, etc. The use belongs to the technical field of printing ink. Background technique [0002] At present, the weight ratio of general gravure silver ink is: [0003] Silver pigment is 10-20% of ordinary aluminum powder [0004] Resin is benzene, ketone dissolved resin 15-25% [0005] The solvent is a mixed solvent of toluene, butanone, isopropanol and ethyl acetate 50-65% [0006] The auxiliary agent is 1-5% of ordinary plasticizer; [0007] The disadvantages of this silver ink are: [0008] 1) Different types of aluminum powder lead to different microstructures, and different structures produce different brightness. Ordi...

AI Technical Summary

Problems solved by technology

[0009] 2) Most of these inks contain toxic solvents such as toluene, xylene, butanone, etc.

It brings certain poison to the production process of ink, the process of printing and the use of printed matter, which is not conducive to environmental protection;

[0010] 3) This type of ink can generally only be used for surface printing film or paper printing, and cannot meet the peel strength required for composite printing

When it is barely used as a composite ink, due to insufficient ink cohesion, it is easy to cause serious consequences of delamination and peeling of printed matter, resulting in product scrapping;

[0011] 4) The storage stability of this type of ink is poor. Due to the large specificity of aluminum powder, the irregular shape and size of the particles lead to the problem of ink precipitation, and the short storage period is not conducive to printing.