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.
Nylon film is a kind of paper that is very easy to absorb moisture. It will have adverse effects on the use after moisture absorption. For example, the dimensional change causes the overprinting to be inaccurate during printing, and the water film on the surface causes insufficient composite strength, foaming, etc. The nylon film should be protected from moisture in a high humidity environment. Specifically, pay attention to the following aspects:
(1) Do not open the package too early before use.
(2) Run out as much as possible, and leave the remaining film with a good barrier material.
(3) The first color group is not printed on the plate during printing, and pre-drying is performed.
(4) Put in a curing chamber for 2-3 hours before use.
(5) Ensure a reasonable temperature (25 °C ± 2 °C) and humidity (≤ 85% RH) in the production workshop. Biaxially stretched nylon film (BOPA film) is a new type of high-grade packaging material. Compared with traditional polyvinyl chloride film and polyester film, it has excellent resistance to cracking, impact, puncture and odor barrier. It is widely used as packaging materials in the fields of food processing, medical and health, chemical products, etc. It is especially suitable for frozen packaging, vacuum packaging and retort packaging. The preservation and fragrance of foods are far greater than conventional packaging materials.
Coating operation process --
Before starting the machine, cut the PET film required for coating according to the size; check whether the coating roller, back roller and knife roller are clean. (Other auxiliary rollers include oven and also check)
? Check whether the belt is correct before and after, and whether the aluminum foil is wrinkled. Once found, correct it in time.
? Open air, open power (total power)
? Turn on the phone, press the touch screen tension button, and correct the button (and set the front and rear correction to auto-correction)
? Set the coating speed (pre-set, and then set according to the viscosity of the slurry and the humidity after drying)
? Click the heating button to preheat the drying tunnel (usually turn on the heating 30 minutes before the coating, the heating temperature can be adjusted according to the actual condition)
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