With the development of the times, people's consumption concept is constantly changing, and people's pursuit of quality of life is also constantly improving. Next, let's take a look at the definition and production process of the eight-sided bag.

Take the eight-sided bag as an example. The quality of the eight-sided bag is directly related to our purchase intention. The benefits brought by the beautiful packaging bag are also very large. As the name implies, the four sealing edges at the bottom of the eight-sided bag have two sides each. This type of bag is a new type of bag in the past two years. The bottom of the eight-sided bag is completely different from the traditional upright bag, self-supporting bag or standing bag, there is no heat sealing edge, the text and pattern display is very flat, so that product manufacturers and designers have enough space to display and explain the product, there is space for design imagination, the perfect embodiment of the designer's design concept of product packaging.

Also known as eight-side zipper bag, eight-side bag, square bottom bag, is the new darling of the food packaging bag industry, in the homogenization of competition today, with a unique technical content of the bag can improve product content and market competitiveness, is conducive to product brand building and brand promotion, what is eight-side bag.

1. Put in film printing (each color has a plate roller during printing, and the engraving of the plate roller is gravure engraving). During the printing process, the ink flows continuously. Because the ink will condense, a scraper is embedded in the ink printing and film printing to scrape off the ink on the protruding part of the plate cylinder so as to print the concave plate cylinder. If the scraper is stained with dust, five-colored ink marks will be produced, dot-like ink contamination is caused by ink splashing on the packaging film during roller printing.

2. After the film is printed, it begins to compound. The film produced by our company generally adopts the dry and wet compound method, that is, the color printing film is coated with adhesive, then put into the oven and bake for two minutes, and then compound with PE. The packaging bag used by our company is double compound.

3. Adhesive to cure the composite film, the curing effect is mainly to the adhesive bond firmly, curing is usually carried out at 50 for 24 hours, in fact, the composite film is stored at 50 for 24 hours, the time and temperature are inconsistent, and the film is not firmly combined.

4. Check the cured film. The inspection refers to inputting the printed matter of the standard template into the computer, controlling the white screen of the cured film by the computer, and pasting black marks directly on the film after defective products appear.

5. Cut the film after inspection.

6. The cut film is made into a bag, the bag making machine directly and automatically makes the film, and the edge is automatically closed during the bag making process. Through the above detailed introduction, I believe you have a certain understanding of what the eight-sided bag is and its manufacturing process.