The custom food bag customization process is usually divided into ten steps: planning, design (confirmation), blown film, printing, compounding, maturation, slitting, bag making, finished product, and shipping.
1: Plan the bag shape, material, size (capacity) required for the plan
2: the design determines the specifications, material, thickness and bag type of the bag, and according to the information to make the design of the bag by the designer or the packaging factory, you can design several copies. When designing, you must give reference and finally Determine the bag. In the design, pay special attention to the text information on the packaging bag, pay attention to the following contents: the manufacturer name of the packaging bag, ingredients such as iron calcium sodium, etc., product introduction, origin, net weight is mainly in g/kg, specifications, food labels No., QS certification, health permit number, production date, storage conditions, shelf life, consumption method, manufacturer name, site and contact number, where QS and barcode must not be less.
3: blown film blown film is a plastic processing method, which refers to a plastic processing process in which plastic particles are heated and melted and then blown into a film. Usually, the polymer is extruded into a tubular film blank, which is in a good melt flow. The tube film is inflated to a desired thickness by high-pressure air, and is cooled to form a film.
4: After the preparation of the printing materials, the surface film is printed using a high-speed printing machine (one plate is rolled for each color and the plate is engraved with a concave plate), and the ink flows continuously during printing because The ink will condense, and a squeegee is set in the ink printing and film printing. The squeegee scrapes off the ink where the embossing of the slab, so that the recessed plate can be printed. If the scraper is dusty, strips of ink contamination can occur. The phenomenon of dot-like ink contamination is caused by dot-like ink contamination caused by ink splashing onto the packaging film during rolling printing.
5: Composite The printed surface film and the heat-sealable inner film are compounded by a special high-speed peritoneal machine for special glue.
6: ripening After the compounding is completed, it needs to be matured in a curing chamber of 45 degrees or more for more than 24 hours, so that the food packaging bag is not easily delaminated.
7: bag making At this point, the production of food packaging bags has come to an end. The bag making technicians need to have certain skills. They must ensure that the color printing bags are well sealed and airtight. The temperature control of the hot knife has certain technical characteristics. After inspection by the quality inspector, it will be shipped.
8: quality inspection The main testing items: size (mm), width (mm), thickness (um), appearance, overprinting error, color difference, peel strength, heat seal strength.
9: Warehousing The inner bag of the quality-qualified packaging bag, plus the non-word universal carton packaging for packaging, and the unified management of the warehouse, so that the later shipment is convenient.
10: Shipment After the package is put into storage, contact the customer, according to the distance, carry out the far logistics, near delivery. Far away places for logistics and distribution, free delivery within Shenzhen.