There are nine processes to customize composite food packaging bags
1： Design
Determine the specification, material, thickness and bag type of the bag, and according to these information, let your designer or packaging factory design and make packaging bag drawings. You can design several more copies. When designing, you must give reference and finally determine the bag. Pay special attention to the text information on the packaging bag when designing, and pay attention to the following contents: ingredients such as sodium iron, calcium, etc., product introduction, origin, net weight mainly in g / kg, specification, food label number, QS certification, health license number, production date, storage conditions, shelf life, food Use method, manufacturer's name, address and contact number, among which QS and barcode must not be less.
Step 2: plate making
After the draft is determined, the food packaging bag needs professional technicians to color the pattern and repair some unclear places. At the same time, it also needs more than a dozen processes to complete plate making. Here we will not introduce them one by one. If you need to know the details, you can visit the plate making factory in person.
Step 3: printing
After the raw materials are prepared, use high speed printing machine to print the surface film (during printing There is a roller for each color, and the engraving of the roller is concave engraving). During printing, the ink is constantly flowing, 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 roller, 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.
Step 4: compound
The printing surface film and heat sealing inner film were compounded by special adhesive special high-speed peritoneal machine.
Step 5: ripening
After compounding, it needs to be aged for more than 24 hours in the curing room above 45 degrees, so as to make the composite packaging bag not easy to peel off.
Step 6: bag making
At this time, the production of composite food packaging bag has entered the end, bag making technicians need to have certain skills, must ensure that the color printing composite packaging bag has good edge sealing without air leakage, and has a certain technical for the temperature control of ironing knife. It is inspected by the quality inspector before leaving the factory.
Step 7: quality inspection
Main test items of composite packaging bag: specification, size, length, width, thickness, appearance, overprint error, color difference, peel strength and heat sealing strength.
Step 8: Warehousing
The qualified packaging bags should be well packed and managed in the warehouse to facilitate the later delivery.
Step 9: shipment
After packaging and warehousing, http://www.dgbpk.com/
Dongguan Beite packaging materials Co., Ltd
Dongguan special bag, plastic bag, plastic bag, plastic bag