Q:Dried fish vacuum packaging packing bag can not puncture

Anti piercing vacuum packaging bags, first of all, choose the material of the bag to have toughness, followed by the thickness of the bag

Q: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".

Q:Printing process of packaging bag

If there is no peritoneal, press the printer faster;

Q:What material is the surface of the packing bag such as instant noodles, pickled mustard tuber, small bread and so on? Why should we add this layer?

First, it is easy to heat seal, otherwise only aluminum foil can not be sealed;Two, high barrier plastic film preservation effect is also very good, can increase its number of layers, reduce aluminum foil thickness, thereby reducing costs

Q:What is the material of detergent bag?

Polypropylene English Name: Polypropylene, abbreviation: PP, commonly known as: 100 fold glue. Polypropylene is a representative of poly - alpha olefins, a thermoplastic resin made by the polymerization of propylene. Its monomer is propylene CH2=CH - CH3. According to the initiator and polymerization process, polypropylene can be divided into isotactic polypropylene and random polypropylene and syndiotactic polypropylene three configurations. Isotactic polypropylene is easy to form crystalline, high crystallinity reached more than 95%, the molecular weight of 8-15 million, giving it a good thermal and solvent resistance; atactic polypropylene at room temperature is white wax microstrip viscous a non crystalline, low molecular weight, in 3000-10000, the lack of irregular structure cohesion, application.

Q:What are the advantages and disadvantages of OPP and CPP membranes? What kind of bags are they used for?

CPP films have the characteristics of good transparency, high gloss, good stiffness, good moisture resistance, good heat resistance, and easy to heat sealing. CPP film is printed and bag made

Q:Why a lot of the packaging bag surface is silver foil?

The purpose of packing is to look good, because it is food, so it is also because of hygiene.

Q:How do you determine the 210mm*300mm package and determine its version and length?

Length 21 cm, width 30, vertical roll length suggest up to cooperate with compound printing equipment

Q:What can be easily removed from the words printed on plastic bags?

Dyes can be classified according to their purpose, state, or origin. Remove the upper part of the plastic bag from the fuel. Refer to

Q:What's the packing of the air in the food package?

Carbonated drinks are mostly filled with carbon dioxide gas CO2, and its own drinks are carbon dioxide ingredients in the majority, with CO2 replacement of the air, but also for the preservation of the product, to ensure the taste, but also improved the shelf life.In addition, some food packaging is filled with a certain proportion of mixed gas, may be O2+CO2+N2, N2+CO2, O2, +CO2. This is also based on the needs of different enterprises, different customers.