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FAQ

Plastic packing bag printing color
A few colors, that is, a few colors, with several roll, one color needs a roll, and the more colors you have, the higher the cost of making the plate. Of course, the plate is calculated by area, the greater the size of your area, the higher the cost of making.
How many kinds of packing bags are there in the packaged foods?
You ask about food plastic packaging, it is generally packaged with composite bags, composite materials, polyethylene (PE), polypropylene, nylon, polyester. These are the main membranes. The film is made of stretch film and blow film. Dry frozen goods, generally cooked with PET/PE., such as high temperature, it is generally nylon, composite CPP, or other composite, many kinds. I am in Dongguan, Humen, food packaging, such as alcoholic peanuts, bags, red dates bags, mask packaging bags, washing powder bags, areca bags, milk powder bags, small fish bags.
What is the difference between LDPE and PE-LD in a package?
LDPE is low density polyethylene, and PE-LD should be low density polyethylene. Because according to the PE classification, LDPE (low density polyethylene), MDPE (medium density polyethylene), HDPE (high density polyethylene), VLDPE (low density polyethylene), LLDPE (linear low density polyethylene (mPE), metallocene PE). See, "LD" means "low density".
How to evaluate the quality of a food packaging bag design? From what angle?
Successful packaging must be eye-catching. This can only be used as a horizontal contrast. In the same environment, the most striking one is the one that can be distinguished from other products at one glance. Also take the moon cake as an example, the Mid Autumn Festival, the general moon cake gift box is red, golden yellow based, above is not the moon, is the flower, most of them are like this. If the design is blue, the package is also shown in the same area. Must be the most striking.
How do I remove the self-adhesive label affixed to the plastic bag?
Use the hair dryer to adjust the hot air to the label. When the label is heated, the glue will melt so that it can be torn off easily. This method is suitable for metal and plastic tools, characterized by quick.
How much is the 1 wire in the food packing bag printing industry?
1 wire =0.01 mm, refers to the thickness of the bag units!Custom food packaging bags, I recommend to have experience in custom food packaging bag manufacturers, because it can reduce the cost and time for many of you, can give you a lot of packaging design and customized recommendations.
What's bread packing? Polyethylene film, waterproof cellophane, etc.
The utility model has the advantages that can be repeatedly used, easy to get a longer shelf life of bread to marry, and don't need strapping, can take the heat sealing with metal or plastic coated Sizha live bag, bag packaging has knot with polypropylene plastic bags of bread.
Why is the higher the elevation, the more food bags inflate? From a physical point of view
Because the food packaging bag is sealed, the air pressure inside is certain, with the elevation of the outside air pressure gradually decreased, which leads to gas bag outward extrusion pressure increased, so the higher the altitude, the food packaging bag inflated more.