It's be mainly used for bopp film gelatinizing producing，The tape is mainly used to seal the box, seal the cover and bind the articles, and can also be used as office supplies.
Second, the length of the coating section changes, the spacing is unstable:
6. When the back roller and the coating roller are in contact with each other, the gap between the two ends is inconsistent and the pole piece is wrinkled. Regardless of whether the first side or the second side is applied, the gap should be carefully adjusted. First, the gap is appropriately enlarged, and then slowly reduced. At the same time, observe the dial scale of the coating roller just touching the foil strip, and then Reduce the gap by 0.03mm.
7. When the correction system is abnormal, the pole piece will be wrinkled. Check the three correction systems before and after the inspection, whether it is in the automatic state. If the lengths of the foil strips are inconsistent, that is, when the file is bent too much, the pole pieces will be wrinkled. Exceeding the correcting ability, the foil has to be replaced. 8. When the pole piece tension is too large, the pole piece is wrinkled. Check that the tension setting is reasonable. Then check each drive roller. The rotation of the take-up roll is flexible. Handle inflexible rollers in time.
9. When the back roller is in the inconsistent stroke, the pole piece is wrinkled. It is necessary for the mechanic to check. Confirm and adjust. After the back roller and the coating roller are pulled apart, the gap between the two sides is 1mm (see the dial indicator), and the test is started. When the tail is qualified, lock the nut.
10. The surface of the rubber roller on the back roller will undergo periodic elastic deformation during re-use. When a certain degree of deformation remains, wrinkles will occur. At this time, new products must be replaced.
11. The cause of looseness of a certain roller fastening screw causes the parallel state of each roller to be destroyed, and wrinkles may occur at this time. As long as it is found in time to adjust and tighten in time.
(5) PET antistatic film
The world today has entered the information age. Electromagnetic waves of various frequencies and wavelengths fill the entire earth space. These electromagnetic waves will cause different degrees of interference to unshielded sensitive electronic components, circuit boards, communication equipment, etc., resulting in data distortion. Communication is disordered. The static electricity generated by electromagnetic induction and friction on various sensitive components, instrumentation, certain chemical products, etc., such as high voltage discharge due to static accumulation of packaging film, the consequences will be destructive, so the development of antistatic PET packaging film is also very important. The antistatic film is characterized in that an antistatic agent is added to the PET film to form a very thin conductive layer on the surface of the film, and a continuous phase is formed to improve the surface electrical conductivity and cause the generated electric charge to leak as soon as possible. Generally, the surface specific resistance of the antistatic film is ≤109~11 ohms.
(6) PET heat sealing film
Ordinary PET is a crystalline polymer. When the PET film is stretched and oriented, it will produce a large degree of crystallization. If it is heat-sealed, shrinkage deformation will occur, so the ordinary PET film does not have heat-sealing properties. When PET film is used as a commodity packaging, in order to solve the problem of heat sealing, a method of compounding a BOPET film with a PE film or a CPP film is generally adopted, thereby limiting the application of the BOPET film to a certain extent.
In order to solve the heat sealing problem, a three-layer co-extruded heat-sealed PET film, a heat-sealed PET film, has been developed by modifying a PET resin and using an A/B/C three-layer die. Since one side is heat sealable, it can be directly heat sealed and is very convenient to use. The heat-sealed PET film can be widely used in various commercial packaging and card-protecting films
Zhengzhou EAST IMPORT AND EXPORT co., ltd . ( a goulian group of company) a manufacturer and exporter for all kind of packaging machinery , like bopp tape coating machines, bopp tape slitting machines. Bopp tape core cutter, bopp tape core loader etc