Talking about the Development and Application of Inkjet Printer (2)

Second, ink preparation and application

1, preparation

In the closed equipment, the selected colorant and solvent are mixed and stirred until the colorant is completely dissolved; then the binder, conductivity modifier, anti-volatility agent, coupling agent, and surfactant are separately added, and the mixture is fully stirred until added. Mix evenly. The inks prepared by this method are compared with known samples

2, application

The ink prepared by the above method was applied to the surface of cans, mineral water bottles and beer bottles. The test found that the prepared ink had better adhesion to the above materials, the drying speed met the requirements, and the printing marks were clear.

The friction resistance comparison test was performed on the surface of the above three materials with the imported sample. The test method was described in the literature [2]: The ink was printed on the surface of the above three materials, and after drying, the ink was rapidly rubbed with the thumb and observed. The number of times the mark is rubbed off. If the mark can maintain 10 rubs, denoted as 10 (+), the mark is considered permanent.

Third, the development prospects

At present, many manufacturers in China use the printer to print the production date, shelf life, batch number, etc. on the surface of the product packaging. Its use has been very extensive, but the required ink depends on imports, and there is basically no production in the country. It is understood that the domestic price of the current ink is about 500 yuan for 1 kg, and the cost is only about 60 yuan, and the profit is higher. Therefore, the development of a variety of substrate surface adhesion, stable performance of the ink, using domestic ink to replace imported ink, must have a broad application prospects.