1. Bag making materials must be consistent with the process sheet.
2. The heat sealing knife and silica gel plate should be flat and free of foreign matters.
3. When the heat sealing temperature is too high, the bag is easy to wrinkle, and when it is too low, the heat sealing is poor and the strength is low.
4. Photoelectric correction is fast and accurate.
5. The size of the bag (length, width, organ height, self-supporting bottom height) is consistent with the process sheet.
6. The pattern position of the bag is consistent with the bag sample or process sheet.
7. The position, shape and width of heat sealing shall be consistent with bag sample or process sheet.
8. The shape, size and position of hand-held hole, hanging hole and easy to tear hole are consistent with bag sample or process sheet.
9. The strength of all positions of the heat seal can meet the product requirements.
10. The air tightness is good. After the bag is flushed and hot sealed, there is no air leakage during extrusion.
11. The bag has good flatness, no wrinkle and no obvious wrinkle at the heat sealing part.
12. The opening of the bag is good and the opening is easy to twist by hand.
13. No printing, lamination, cutting quality (overprint, missing printing, trailing, knife line, ink dirty, blister (spot, grain) point, wrinkle, lack of glue line, pattern deviation, odor, dirt).
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.