Drying and scaling of packaging printing ink and preventive measures
Packaging printing ink dry crust and preventive measures what is ink crust? When the ink in the ink holder forms a thin film due to the drying of the skin in the printing process, the film will adhere to the barrel, making the layout uneven, resulting in contamination of the printed matter and seriously affecting the product quality. So what is the cause of ink conjunctiva? There are many reasons for ink conjunctiva, the more common ink conjunctiva are: 1, ink drying too fast to produce conjunctiva, 2, poor ink fluidity, the quality of the ink is not up to standard, 3, the ink system volatilization, or be evaporated, or air oxidation drying and form a layer of film. 4. The structure of ink barrel or ink hopper is not good, resulting in stagnant ink, which is dried by dry air and forms crust. So, how to prevent and prevent ink conjunctivation? Experienced printing operators summarized the following experiences for your reference: 1. Do not use ink that is too dry; 2. Add slow drying solvent; 3. Replace deteriorated ink, buy high-quality ink holder and ink, 4. Keep stirring in the ink holder to enhance the fluidity of the ink. 5. Add a sealed cover to the ink fountain to prevent air from entering, 6. When the drying speed is too fast, or the ink concentration is too low, or the flow is poor, or the ink thixotropy is large, or the ink static electricity, they will adopt the method of adjusting the printing machine speed, which not only prevents the ink from drying on the printing plate in advance, but also overcomes the crust formed by the film formation of the packaging printing ink, and eliminates the speckles of the pictures and texts.
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.
We uphold the integrity of cooperation, good quality, good service business philosophy, won the industry's approval, products sold to all over the world; welcome friends from all walks of life to inquire, visit our factory to investigate guidance and business negotiations.