Causes of compound edge sticking at the bottom of solventless composite core
There are two main factors, one is the composite deviation on the edge, the other is the coating is too large. The coating amount of solvent-free low-speed compounding (< 50M / min) is about 0.2-0.3gsm higher than that of normal machine speed, Therefore, when the cot is running at a low speed, a low speed (rotating) speed should be set. When the cot is not pressed and the cot (located between the metering roller and the coated steel roll) is pressed down, a large amount of glue will accumulate on the surface of the coated steel roll. In this way, when the cot is pressed down, the excess glue will spread to both sides, resulting in edge sticking. Therefore, it is not necessary to press down and transfer the coated cot before it is pressed Cots, avoid coating roller area glue.
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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