What are the main reasons for the uneven winding of solvent-free composite film and how to solve it?
main cause:
(1) Too much glue on the whole;
(2) The gap between the metering roller and the transfer steel roller is inconsistent, which leads to the difference of glue amount on both sides;
(3) The flatness of base material is poor, or the tightness of both sides is different;
(4) The winding tension is too small (the winding taper is too large), or the winding pressure is too small, or the pressure on both sides of the coil is not balanced.
Corresponding solutions:
(1) Reduce the amount of glue on the whole properly;
(2) Readjust the gap between the metering roll and the transfer steel roll;
(3) Replace the substrate with good surface quality;
(4) Adjust the winding tension (winding taper) or winding pressure properly.
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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