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Characteristics

Advantages

High strength: PVC bags are relatively strong and suitable for loading heavy or sharp objects, providing better protection. For example, hardware tools packed in PVC bags can be prevented from being damaged by collision during transportation or storage.

Strong waterproofness: They have good waterproof performance and can protect items from moisture for a long time. They are suitable for packaging items that need to be protected from moisture, such as some electronic products and cosmetics.

Diverse appearance: They are more diverse in color and design. Through processes such as silk - screening and hot - pressing, various beautiful patterns and colors can be made, which are suitable for gift packaging, cosmetic packaging, etc. that need to display brand images.

Good durability: Compared with some other plastic bags, PVC bags are more durable and not easy to be torn, with a relatively long service life.

Disadvantages

Poor flexibility: PVC bags have poor flexibility and are brittle. They may break under high pressure and are not suitable for occasions that require frequent bending or stretching.

Insufficient environmental friendliness: In terms of environmental protection, it performs worse than PE materials. Improper treatment may cause a burden on the environment. For example, burning PVC bags will produce harmful gases and pollute the environment.

Poor air permeability: They have poor air permeability and are not suitable for packaging items that need to breathe, such as fresh fruits and vegetables. Otherwise, it is easy to cause the items to rot.

Production and processing

High - frequency hot - pressing: After the PVC film is cut into sheets, it is first screen - printed if necessary, and then hot - pressed by a high - frequency machine. Generally, a copper mold needs to be customized for production. It can be pressed into various styles such as PVC sleeve bags, PVC wire - inlaid bags, PVC zipper - less bags, PVC hand - bags, and PVC self - sealing bags.

Sewing: After cutting and printing, it is directly sewn by sewing machines such as flat - bed sewing machines or high - speed sewing machines. Generally, accessories such as nylon zippers are added.

Application areas

Packaging field: It is widely used as packaging bags for clothing, hardware, cosmetics, stationery, handicrafts, etc., which can enhance the product grade.

Gift field: It can be made into various beautiful gift bags, which are used to package gifts and increase the beauty of gifts. Common ones are transparent PVC gift bags, which are matched with ribbons or bows and used in occasions such as weddings and birthdays.

Fashion field: It is designed into various fashionable hand - bags, shoulder - bags, backpacks, etc. For example, the PVC soft European - style bag, the jelly bag, has become part of the fashion trend with its unique appearance and material.

Other fields: It can also be used to make medical inflatable bags, bathtubs, etc., as well as storage bags and file bags, such as PVC waterproof cosmetic bags, ice bags, traveling bags, dry bags, sports bags,special bags.and PVC file storage bags.