Follow us
Home > News > Content
PVC Bags Craft Ornaments
Sep 25, 2017

PVC bag is a kind of plastic bag, which is made from PVC film.

According to the different thickness of PVC film and different USES, PVC bags, cosmetic packaging bags, stationery packaging bags, craft accessories packaging bags, gift bags and other products packaging. Many high-end products manufacturers will use PVC bags for packaging, beauty products and products, but they are more expensive than OPP bags/PE bags.

High-frequency hot pressing PVC bag, PVC film after blanking points sliced, need printing screen printing first general mostly for the silk screen printing (PVC), and then by high-frequency hot pressing machine, general need to custom-made production of copper and then. Hot pressed PVC bags can be compressed into PVC sleeve bags, PVC zippered bags, PVC non-toothed zipper bags, PVC tote bags, PVC self-sealing bags, etc.

Sewing machine sewing machine sewing machine sewing machine sewing machine sewing machine sewing machine sewing machine sewing machine sewing machine.

How to distinguish PVC plastic bags from PE bags

In daily life, people contact more plastic bags (film), polyvinyl chloride (PVC) and polyethylene (PE) plastic film (bag), how to distinguish between them both, engineering plastics technology BBS summarizes several simple method:

(1) touching

With a touch of lubrication, the surface is coated with a layer of wax (chemically called wax), which is a non-toxic polythene bag, while polyvinyl chloride films are sticky.

Dithering method [2]

Hand shake, the sound is crisp, the qualitative easily float is polyethylene film bag. And the muffled sound of the hand is the polyvinyl chloride film bag.

(3) combustion method

The fire is flammable, the flame is yellow, and when it burns, the paraffin oil is dripping, and the gas is when the candle burns, it is a non-toxic polyethylene film bag. If it is not easy to burn, the fire is extinguished, and the flame is green, for polyvinyl chloride film bag.

(4) flooding method

The polyvinyl chloride (polyethylene density is less than the water and the density of polyvinyl chloride is greater than that of water; At normal temperature, it is about 0.92g/cm3 and 1.4g/cm3 respectively.

In addition, also desirable copper wire, burnt in the fire red, then, the copper wire contact with the test with plastic film, produce chemical change, then put the dip in with the plastic components of the copper wire to be returned to the flame. It is important to observe carefully, if the color of the color, the bright green flame, then this kind of plastic material contains chlorine element, belong to PVC material.