Knowledge of pp woven bags

What is woven polypropylene bags?
Let’s break this question into three sections.
1. woven
Woven, or weaving is a method by many threads or tapes woven in two directions (warp and weft), to form a fabric for plastic industry needs.
In the plastic woven industry, with a plastic film is drawn into filaments, woven into fabric/sheet/cloth. It can be into a tarpaulin, woven bags, container bags, tons of bags, geotextile fabric, color of the cloth and so on.
Woven or weaving by industry:
Plastic film into a fiber, it should belong to the plastic industry;
Filament weaving process from the plastic into view, it should belong to the textile industry.
Thus, it is both plastic and textile industries marriage of the body.
Woven fabric cloth usually frays at the edges, unless techniques are used to counter it, such as the use of pinking shears or hemming.
2. woven polypropylene
Polypropylene, which is also known as PP for short name, is one kind of thermoplastic resin material that produced by the polymerization of propylene.
Woven polypropylene is polypropylene strips/threads that have been woven in two directions (warp and weft) to creat a light, but strong and heavy duty material.
3. woven polypropylene bags
Build with circular woven polypropylene fabric, one side sewn as the bottom, leave the other side open, the simplest woven polypropylene bags is done.
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Why woven polypropylene suitable for packaging use?
High Melt Index with low Density
 Non-toxic
 Non-staining
 100% reusable and durable
 Easy to clean and anti bacterial
 Light in weight with lowest density
 breathable or water proof with a laminated film
 Easy to produce, assembly and an economic material
 Excellent resistance to stress and high resistant to cracking
 High operational temperatures with a melting point of 167°C
 Resistant to most alkalis and acid, organic solvents, degreasing agents
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Different names of woven polypropylene bags
1. woven polypropylene bags = woven polypropylene sacks
Bags or sacks is appropriate to describe something in a wide range of packaging types.
A bag is, a flexible container with a single opening.
A sack is, a bag made of paper or plastic for holding.
Sack is just one type of Bag, especially applying to the packaging industry. In fact, most countries use BAG more frequently than sack. There will be differences but little, so as far as we know, woven polypropylene bags = woven polypropylene sacks.
2. Short names of woven polypropylene bags
 pp bags
 wpp bags
 woven bags
 woven pp bags
 woven poly bags
3. Use names of woven polypropylene bags
 salt bags
 rice bags
 coal bags
 flour bags
 sandbags
 feed bags
 seed bags
 cement bags
 fertilizer bags
 firewood bags
 chemical bags
 …
The fact is different names used in different countries and regions. More bag details needed if we came to a conslusion that it’s the woven polypropylene bag.
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Properties of woven polypropylene bags
The properties of woven polypropylene bags come from two aspects:
1. Properties of polypropylene
2. Properties of woven method
Polypropylene has qualities of rot/flame/chemical resistance, and woven method means strong yet breath. Combining together with other factors, we got 9 facts of woven polypropylene bags.
· Woven Polypropylene Bags are reusable.
· Woven Polypropylene Bags don’t degrade when wet.
· Woven Polypropylene Bags are naturally resistant to tearing.
· Woven Polypropylene Bags can be printed on one side or both sides.
· Woven Polypropylene Bags allow the contents to breath until air dried.
· Woven Polypropylene Bags have better burst strength than plastic bags.
· Woven Polypropylene Bags can be laminated as the vapor and moisture barrier.
· Woven Polypropylene Bags can be partially transparent for outstanding presentation.
· Woven Polypropylene Bags can be side gusseted to accommodate bulky items easily.