Which five elements should be paid attention to when buying ink?
Solid content of ink
Solid content generally refers to the non-volatile materials contained in the ink, such as resins, pigments, auxiliaries and so on. Through printing and removing the volatile solvent, the amount of these solids left on the substrate is called solid content. The solid content of ordinary ink is 35% ~ 57%.
Color concentration
The amount of pigment in the ink is called color concentration. The pigment content in gravure ink is 8% ~ 12%.
viscosity
The printing industry knows that the faster the printing speed, the lower the viscosity of the ink required. To carry out medium and high-speed printing, the printing plate should be shallow, and the viscosity should be 9 '~ 13'.
Light fastness of various colors
It refers to the light fastness of the color in the ink. The light tolerance can be divided into 8 grades, and more than 5 grades are suitable.
Permeability
Refers to the ink in some colors have permeability.
Based on the above points, a conclusion can be drawn: in addition to the unit price, printing enterprises need to know the solid content, color concentration, viscosity and light fastness of the ink. In this way, we can comprehensively evaluate whether the purchased ink is worth the money.
Dongguan Beite packaging materials Co., Ltd. - located in Dongguan City, the world's manufacturing city, is a subsidiary of Beite packaging (China) Co., Ltd., with a plant area of 6000 square meters. It is a flexible packaging enterprise integrating R & D, production and sales. It has a complete set of domestic advanced production equipment, a scientific and humanized management system and a group of experienced technical personnel For backing, to provide customers with quality products and first-class service.
The company produces composite bags, roll film, fruit bags, aluminum foil bags, suction mouth bags, self-supporting bags, zipper bags, anti-static bags, special-shaped bags, etc., which are suitable for the internal and external packaging of food, daily chemicals, electronics, toys, medicine, cosmetics, industrial products and other industries.
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