Is the use of color printing packaging more and more extensive?

Now the use of color printing packaging in Dalian has become more and more widespread, and plays an important role in our life. No matter what products, in order to ensure that every user can use qualified products, and whether it is low, medium and high-end products, color printing packaging, we are concerned about or price issues.

Process adjustment of coated base paper: Bleached chemical wood pulp is used in all the pulp fibers of base paper, and the amount of pulp is increased to strengthen the coverage of lining mechanical pulp. The medium alkaline sizing process was adopted to reduce the amount of aluminum sulfate and improve the 13H value of base paper. It is proved by experiments that the pH value of the base paper surface is between 6.5 and 8. In the process of papermaking, the drying temperature should be strictly controlled to ensure the drying of cardboard. The drying temperature should be lowered as far as possible, and the cold cylinders of base paper and coated paper should be used well.

Reasonable application of toner pigments: The use of toner pigments is to maximize whiteness, reduce the amount of fluorescent whitening agent, and balance different chemical raw materials to achieve the required color. In order to reduce yellowing of coated white board paper, the selection of toner pigments requires not only easy operation, good affinity, but also high light resistance. Therefore, the choice of high-quality organic pigments, its performance in all aspects is relatively ideal. More attention should be paid to the dosage of toner pigments, because too high or too low dosage can not achieve the purpose of toner. Too high will aggravate the yellowing degree of coated white board, and if it is too low, it will not reach the right whiteness.