Q:Do vacuum packing bags have to be vacuum packed?

Vacuum packaging bags and vacuum packaging machines are related. Vacuum packaging machine not only can complete vacuum extraction, but also can complete heat sealing packaging in vacuum, and ensure vacuum in vacuum bag can meet the requirement.

Q:How many kinds of packing bags are there in the packaged foods?

PE's softness and mechanical properties are worse than those of PP. It represents shopping bags, plastic wrap, garbage bags and so on.PP is stiffer, anisotropic (with a notch that is easily ripped), has good mechanical properties, and is superior to PE in high-temperature performance, representing bread bags.I wonder if this answer has met your requirement.

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:Printing process of packaging bag

For the surface or irregular surface can be used heat transfer, adhesion is good, not easy to fade, but requires a transfer equipment.Screen printing belongs to orifice plate printing. It is called four printing methods together with flat, convex and gravure printing. Hole printing includes transcription, mesh flower version, stencil printing and screen printing etc.. Printing the principle is: (a version of the base paper or other version of the film version of the ink can be made through holes) at the time of printing, through a certain pressure so that the ink to the substrate through the hole hole Edition (transfer paper, ceramics etc.) on the formation of images or text.

Q:What kind of material is the food packing bag in general?

Now the standard of living has improved, basically the food vacuum packed bag. This will improve the product's shelf life, preservation time is longer, more conducive to product sales.

Q:The vacuum packing bag is sealed. How can I open the zipper?

The simplest and most effective way is to apply a layer of wax to the surface of the zipper, and use the lubrication of the wax to achieve a smooth effect. With a candle on the surface of the zipper back and forth after wiping, and then from the bottom of the repeated several times, the zipper will be smooth.

Q:Why are some teas not vacuum packed?

Feng Xing packaging machinery factory experts explained that the main role of vacuum packaging machine is oxygen, moisture, high temperature fermentation, etc., in order to prevent the deterioration of tea. The principle is relatively simple, which is conducive to vacuum packaging machine to remove the air in the packaging bag, and then sealed, so that tea in a vacuum under the state, and absolutely isolated from the outside world.

Q:The difference between a vacuum and a vacuum in a food package

Vacuum and vacuum is actually a concept, the operation is generally called vacuum, are placed in the vacuum food packaging machine to extract air package a food packaging technology, will conduct disinfection operation in food bagging before or after bagging, its essence is no different.

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 kind of material is the urea packing bag made of?

The main material of urea woven bags consists of polypropylene and polyethylene.