Causes of adhesion (incomplete curing) of solventless composite glue
1、 Two component
(1) the glue mixing ratio is not correct or is not prepared according to the requirements of the correct ratio
(2) uneven mixing of glue: the glue should be fully stirred until the glue is clear, which indicates that it has been even, especially when it is stirred manually.
(3) the isocyanate component in the glue deteriorated and the adhesive failed.
(4) High environmental humidity, high residual printing solvent, moisture absorption of nylon or aluminum plating materials, these factors will consume part of isocyanate.
(5) Water or a large amount of ethyl acetate was mixed into the mixed glue.
(6) The static mixer is damaged, and the glue pump or outlet pipe is blocked.
2、 One component
(1) Humidity below 85%
(2) The curing temperature is low or the curing time is not in place.
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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