Detailed introduction
Product introduction:
Zipper packing bag is a kind of composite soft packing bag which is often used in our life. It has various bag shapes such as self-supporting zipper bag, three side zipper bag, eight side flat bottom zipper bag, etc., and many patterns. But the zipper bag is easy to break down. This paper analyzes the ten faults of zipper bag in detail. Hope to help you!
1、 Bag bending
1. The balance between film tension and chain belt tension is not good.
(3) The zipper belt doesn't slide well.
(4) The slot of the zipper plate is too narrow.
(5) The slide of zipper plate is not good.
(6) The film does not slide well at the inclined plate / M plate.
2. The temperature of zipper heat seal is too high.
3. The tension of the rubber roller under the zipper is poor.
2、 Partial heat sealing of zipper belt is poor
1. Foreign matters (polyethylene residue, dust) are mixed in the zipper heat sealing plate.
2. There is damage or foreign matter on the Teflon surface installed on the zipper frame.
3. There is damage or foreign matter on the Teflon surface of the zipper plate.
4. The zipper plate is partially damaged or deformed.
3、 Either end of the heat sealing part of the zipper belt is not sealed or the heat sealing strength is extremely weak
1. The thickness of zipper belt is not appropriate.
2. The position of the zipper heat sealing plate is not aligned with the belt.
4、 Fusion of zipper fit
1. The zipper heat seal temperature is too high.
2. The position of the zipper heat seal is shifted and the fit part is pressed.
3. The waiting time is too long and affected by preheating.
5、 There is no problem with the elastic adjusting roller, but there is deviation between the edge of the zipper frame and the pattern
1. The position of the zipper plate is too low, the lower film is heat sealed with the lower side, and the cooling plate has friction. Or affected by the preheating of the heat seal on the lower side.
2. The rubber roller at the lower side of the zipper does not hold the film well, which makes the film slip.
3. The position of the upper release roller of the rubber roller at the lower side of the zipper is not set properly.
4. The tension of the tension regulating roller is too small.
6、 Zipper is too small
1. The matching strength of the original zipper belt is too small.
2. The hot cover of the opening side / inner bag side of the zipper belt is set reversely.
3. The temperature setting of zipper heat seal is too high, which makes the fitting part deformed, especially the concave part opened.
6. The edge of the rubber roller groove is rubbed with the fitting part.
7. When two rows of bags are made, the film (especially OPP / CPP) shrinks due to heat, and the two rows of plates for bag making in the center of zipper plate rub against the fitting part.
8. The top cooling plate is too wide and the fitting part is pressed.
9. The upper and lower clearance of the lower rubber roller string is too small, and the zipper fitting part is pressed too tight.
7、 There is too much gas backlog in the point heat seal
1. The temperature of longitudinal heat seal is set too high.
2. The longitudinal pressure is too large, and the edge of the heat seal is pressed into the rubber table.
3. The rubber table is worn or uneven.
4. The width of the cooling plate (upper) is too large, and the top heat sealing part is not pressed.
5. In the Teflon roll of the longitudinal heat sealing part, a coarse-grained Teflon cloth is used to make the air absorbed.
8、 Too much gas backlog in horizontal thermal seal
1. When the reinforcing block is heat sealed, the heat sealing plate does not press the film down enough.
2. The silicone rubber (especially the upper flow side) of the pressure plate is concave or uneven.
3. Teflon cloth with coarse grain is used on the heat sealing plate and silicone rubber of the stage, which absorbs the air into the grain.
9、 Leave the core or leakage of liquid in the pressing part of zipper
1. The gap between the point heat seal of the zipper is too small.
2. The temperature of the point heat seal of the zipper is set too low.
10、 Separation of aluminum and ink at point and transverse heat sealing
1. The reason for separation is that the dissolution rate of PE or CPP in the dissolution layer is different from that of Al or ink.
2. The countermeasure is to reduce the operation speed and ensure enough heat sealing time.
3. Do not pressurize the reinforcing block.
4. When the reinforcing block is heat sealed, adjust the gap and melt it slowly.
5. Round the edge of the heat sealing plate of the reinforcing block so that the edge of Al or ink expansion is not cut off.
6. Use multi-stage reinforcing block heat seal as much as possible.
7. Use heat sealing plate and coarse Teflon cloth for cooling plate to absorb into glass fiber mesh
Product parameters:
Material: PET / Al / PE PET / NY / Al / PE PET / NY / Al / CPP / customizable
Size: w150x h230 xb0.14mm
Specifications and models are different, please contact our sales personnel for further confirmation
Product use:
Dog food or other pet food
After order:
500g small bag self zipper dog food bag order quantity: 30000
500g small bag self-supporting zipper dog food bag manufacturer introduction:
Dongguan Beite 500g small bag self-supporting zipper dog grain bag factory is a subsidiary of Beite packaging (China) Co., Ltd., with a factory area of 10000 square meters. It is a soft packaging enterprise integrating R & D, production and sales. It has a full set of advanced domestic production equipment, scientific and human-oriented management system and a group of experienced technical personnel as the backing to provide customers with high quality Our products and considerate service.
The company produces composite bags, roll film bags, 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 chemical, electronics, toys, medicine, cosmetics, industrial products and other industries.
We adhere to the business philosophy of sincere cooperation, excellent quality and considerate service, and have been recognized by the industry. Our products are sold to all parts of the world. We welcome friends from all walks of life to call us for consultation, visit our factory for investigation, guidance and business negotiation.
报错
Zipper packing bag is a kind of composite soft packing bag which is often used in our life. It has various bag shapes such as self-supporting zipper bag, three side zipper bag, eight side flat bottom zipper bag, etc., and many patterns. But the zipper bag is easy to break down. This paper analyzes the ten faults of zipper bag in detail. Hope to help you!
1、 Bag bending
1. The balance between film tension and chain belt tension is not good.
(1) The tension of the regulating roller is too weak.
(3) The zipper belt doesn't slide well.
(4) The slot of the zipper plate is too narrow.
(5) The slide of zipper plate is not good.
(6) The film does not slide well at the inclined plate / M plate.
2. The temperature of zipper heat seal is too high.
3. The tension of the rubber roller under the zipper is poor.
2、 Partial heat sealing of zipper belt is poor
1. Foreign matters (polyethylene residue, dust) are mixed in the zipper heat sealing plate.
2. There is damage or foreign matter on the Teflon surface installed on the zipper frame.
3. There is damage or foreign matter on the Teflon surface of the zipper plate.
4. The zipper plate is partially damaged or deformed.
3、 Either end of the heat sealing part of the zipper belt is not sealed or the heat sealing strength is extremely weak
1. The thickness of zipper belt is not appropriate.
2. The position of the zipper heat sealing plate is not aligned with the belt.
4、 Fusion of zipper fit
1. The zipper heat seal temperature is too high.
2. The position of the zipper heat seal is shifted and the fit part is pressed.
3. The waiting time is too long and affected by preheating.
5、 There is no problem with the elastic adjusting roller, but there is deviation between the edge of the zipper frame and the pattern
1. The position of the zipper plate is too low, the lower film is heat sealed with the lower side, and the cooling plate has friction. Or affected by the preheating of the heat seal on the lower side.
2. The rubber roller at the lower side of the zipper does not hold the film well, which makes the film slip.
3. The position of the upper release roller of the rubber roller at the lower side of the zipper is not set properly.
4. The tension of the tension regulating roller is too small.
6、 Zipper is too small
1. The matching strength of the original zipper belt is too small.
2. The hot cover of the opening side / inner bag side of the zipper belt is set reversely.
3. The temperature setting of zipper heat seal is too high, which makes the fitting part deformed, especially the concave part opened.
4. At the zipper plate, the flow of the film deviates from the angle of the zipper plate, and the edge of the zipper plate rubs to the fitting part。
6. The edge of the rubber roller groove is rubbed with the fitting part.
7. When two rows of bags are made, the film (especially OPP / CPP) shrinks due to heat, and the two rows of plates for bag making in the center of zipper plate rub against the fitting part.
8. The top cooling plate is too wide and the fitting part is pressed.
9. The upper and lower clearance of the lower rubber roller string is too small, and the zipper fitting part is pressed too tight.
7、 There is too much gas backlog in the point heat seal
1. The temperature of longitudinal heat seal is set too high.
2. The longitudinal pressure is too large, and the edge of the heat seal is pressed into the rubber table.
3. The rubber table is worn or uneven.
4. The width of the cooling plate (upper) is too large, and the top heat sealing part is not pressed.
5. In the Teflon roll of the longitudinal heat sealing part, a coarse-grained Teflon cloth is used to make the air absorbed.
8、 Too much gas backlog in horizontal thermal seal
1. When the reinforcing block is heat sealed, the heat sealing plate does not press the film down enough.
2. The silicone rubber (especially the upper flow side) of the pressure plate is concave or uneven.
3. Teflon cloth with coarse grain is used on the heat sealing plate and silicone rubber of the stage, which absorbs the air into the grain.
9、 Leave the core or leakage of liquid in the pressing part of zipper
1. The gap between the point heat seal of the zipper is too small.
2. The temperature of the point heat seal of the zipper is set too low.
10、 Separation of aluminum and ink at point and transverse heat sealing
1. The reason for separation is that the dissolution rate of PE or CPP in the dissolution layer is different from that of Al or ink.
2. The countermeasure is to reduce the operation speed and ensure enough heat sealing time.
3. Do not pressurize the reinforcing block.
4. When the reinforcing block is heat sealed, adjust the gap and melt it slowly.
5. Round the edge of the heat sealing plate of the reinforcing block so that the edge of Al or ink expansion is not cut off.
6. Use multi-stage reinforcing block heat seal as much as possible.
7. Use heat sealing plate and coarse Teflon cloth for cooling plate to absorb into glass fiber mesh
Product parameters:
Material: PET / Al / PE PET / NY / Al / PE PET / NY / Al / CPP / customizable
Size: w150x h230 xb0.14mm
Specifications and models are different, please contact our sales personnel for further confirmation
Product use:
Dog food or other pet food
After order:
500g small bag self zipper dog food bag order quantity: 30000
500g small bag self-supporting zipper dog food bag manufacturer introduction:
Dongguan Beite 500g small bag self-supporting zipper dog grain bag factory is a subsidiary of Beite packaging (China) Co., Ltd., with a factory area of 10000 square meters. It is a soft packaging enterprise integrating R & D, production and sales. It has a full set of advanced domestic production equipment, scientific and human-oriented management system and a group of experienced technical personnel as the backing to provide customers with high quality Our products and considerate service.
The company produces composite bags, roll film bags, 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 chemical, electronics, toys, medicine, cosmetics, industrial products and other industries.
We adhere to the business philosophy of sincere cooperation, excellent quality and considerate service, and have been recognized by the industry. Our products are sold to all parts of the world. We welcome friends from all walks of life to call us for consultation, visit our factory for investigation, guidance and business negotiation.
报错
