Zipper bag manufacturer introduces the production process of octahedral sealed food packaging bag
1. Packaging film printing (there is a roller for each color when printing, and the engraving of the roller is concave engraving). During printing, the ink is flowing continuously, because the ink will condense. A scraper is embedded in the ink printing and film printing. The scraper scrapes the ink from the protruding place of the plate roll, so that the concave plate roller can be printed. If there is dust on the scraper, there will be a strip of ink pollution. For the dot like ink pollution phenomenon is due to the ink splashing on the packaging film when the ink is rolling printing, resulting in the dot like ink pollution.
2. Packaging film composite packaging film starts to composite after printing. For the film produced by our company, the dry wet composite method is generally adopted, that is, the printed packaging film is coated with glue and then dried for 2 minutes and then compounded with PE. The composite tension is 5.6kg. Our company uses zipper bag packing bag is two to four layers compound, the packing bag produced is suitable for various industries.
3. Curing: it is used to cure the film after gluing. The main effect of curing is that the glue can be firmly adhered. Generally, it is cured at 50 ℃ for 24 hours. In fact, the composite membrane is stored at 50 ℃ for 24 to 48 hours (according to the different properties of the composite membrane, the different time is distinguished). If the time and temperature do not meet the requirements, there will be a phenomenon of film lamination is not tight.
4. The cured film of the sample is then inspected. The inspection sample is to input the printed matter of the standard template into the computer, and then the cured film will pass through a white screen controlled by the computer. If the unqualified product appears, a black mark will be pasted on the film directly.
5. The membrane was cut after the sample was cut.
6. After bag making and cutting, the film will be made into bags. Zipper bag making is to automatically bag a piece of film directly through the machine. During the process of bag making, the automatic edge sealing is carried out and the pressing is carried out. http://www.ycritai.cn/
Dongguan Beite packaging materials Co., Ltd
Dongguan special bag, plastic bag, plastic bag, plastic bag