1. During the printing process, the ink is flowing continuously during the printing process. Because the ink will condense, a scraper is embedded in the ink printing and film printing. The scraper is used to scrape the ink from the protruding part of the plate roll, so that the concave plate roller can print. 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. After the film is printed, it starts to composite. For the production film, the dry wet composite method is generally used, that is, the color printed film is coated with glue and then dried for 2 minutes, and then compounded with PE. The composite tension is 5.6kg. Our company adopts the octahedral sealing bag, which is made of two layers.
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 hours. 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 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 after the sample was cut
6. After cutting, the film is made into bags. The 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
Aluminum foil packaging bags, mask bags, self-supporting zipper bags, eight side sealing bags, red wine bags, dog food bags, beverage bags, box bags, packaging roll film, perforated fruit bags, Dongguan bate packing material Co., Ltd.