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Basic knowledge of square bottom valve pocket

人气: Date: 2019-06-29 Popularity:
Square bottom shape:
The square bottom structured bag is packed into a brick structure, which makes the bag suitable for manual and automatic filling lines. Generally, the bag has a valve port, and its shape is exactly the same as the paper bag valve port.
Valve port:
The self-closing nature of the bag allows it to fill a variety of materials, and the size of the valve port is adjusted according to the needs of the filling materials. As an option, the valve port can be designed for manual or automatic sealing after filling.
Breathability:
According to the special requirements of filling and storage, the air permeability of the bag can be changed. This makes the air out of the bag when filling powdery products such as cement, and at the same time guarantees the permeability of some foods.
Double bag structure:
In order to meet the requirements of higher performance and special filling products, the bag can be made into a double-layer structure with a valve opening or an opening. This reduces the emission of dust, better bag stiffness, and better product protection. The inner lining can be porcelain permanent paper, PE film or similar materials.
Stacking performance:
The square bottom bag combines the high strength of the bag with the full stackability. This advantage can increase the pallet stacking layer, greatly saving the storage area.
Exterior:
Thanks to the surface coating, the bag can be fully printed to obtain the best visual effect. The bag can be made into any color, and the bottom can be printed, which improves the marketing effect.
Functions and features:
1. Using the new PP material production and high-end surface coating film processing technology, the printed square bottom valve pocket has good visual effects;
2. Wide scope of application: packaging of building materials (cement, mortar, plaster, putty powder, etc.), chemical products, etc.
3. The square-bottom structure type bag is packed into a brick structure, which makes the bag suitable for manual and automatic filling lines. It has good stacking performance and good self-sealing performance at the valve port;
4. Good environmental protection effect, reducing dust emission; and the best ventilation performance effect.

Anhui Tianda Environmental Protection New Material Co., Ltd. has focused on the production research of woven bags, square-bottom valve pockets, FFS membranes (bags), and container bags for 30 years. We have made unremitting efforts to solve the packaging problems of different customers in various industries. Welcome friends to come to me Secretary for negotiation guidance, contact person: Mr. Fang 15955047585