Here&#;s a complete guide to woven polypropylene bags from the view of a leading manufacturer and supplier from China. We hope do help for those who&#;re interested in this item.
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The following content will provide the answers from our knowledge and practical experiences to these questions:
1. What is woven polypropylene bags?
2. Why woven polypropylene suitable for packaging use?
3. Different names of woven polypropylene bags
4. Properties of woven polypropylene bags
5. Applications of woven polypropylene bags
6. Is woven polypropylene an eco-friendly material?
7. Can woven polypropylene bags printable?
8. Glossary of woven polypropylene bags
9. How to customize bags of woven polypropylene?
10. HS code of woven polypropylene bags
11. 2 typical use of woven polypropylene bags
12. Do you supply more than just woven polypropylene bags?
Let&#;s break this question into three sections.
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.
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.
Build with circular woven polypropylene fabric, one side sewn as the bottom, leave the other side open, the simplest woven polypropylene bags is done.
High Melt Index with low Density
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.
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.
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.
PP woven bags are largely used in storing and transporting agricultural products such as aquatic products, feeds, fruits, vegetables, etc. PP woven bags used in the agricultural industry typically include feed PP woven bags, chemical PP woven bags, fertilizer PP woven bags, vegetable woven bags and fruit mesh bags.
PP woven bags are increasingly used to pack food. Common food woven bags include rice PP woven bags, flour PP woven bags, maize woven bags, etc.
PP woven fabrics are extensively used in the construction of irrigation works, roads, railways, ports, mines, buildings, and more. Having the functions of filtering, draining, isolation and anti-seepage, PP woven fabrics are one of the most popular geosynthetics.
Temporary tents, sunshades, and various travel bags can be made by PP woven fabrics. In addition, plastic woven fabrics can also be used as fences and screens during construction.
PP woven bags are almost used by everyone, whether workers, farmers, or cargo agents etc. You can find plastic woven products (such as shopping bags, logistics bags etc.) in stores, warehouses and houses, nearly everywhere.
Woven bags play an important role in reducing or preventing the detrimental effects of flood waters. They are widely used in the construction of dams, river banks, roads and railways. Woven polypropylene sandbags are widely used all over the world.
Special woven bags are used to serve some special purposes. For example, UV resistant woven bags have UV protection and anti-aging function, allowing them a longer lifespan in the sunlight. Woven polypropylene tube with UV protection can be used for earthbag buildings.
Yes, it&#;s an eco-friendly fabric. It can be melted down, recycled and made into other products. Besides, they last long enough and can be used many times to reduce your demand from single-use products.
Woven polypropylene bag can last between four and five years if proper use.
Yes, very. Woven polypropylene is a great fabric to print on. You can choose normal easy printing such as simple brand text and image with three colors, also full color printing with bopp lamination.
Bopp laminated woven polypropylene bags is best suited to graphic and digitally created art work. Perfect for 100% print coverage with no limit to creativity!
Polypropylene &#; A type of polymer used in producing monofilament and multifilament yarns and threads. It is recyclable and is used as our standard fabric.
Yarn / Tape &#; Extruded PP sheet, slit and stretched in annealing ovens to form part of the woven fabric for the bag.
Warp &#; Yarn or tape in a fabric, oriented perpendicular to the Weft yarn during weaving. This would go from top to bottom in the body fabric.
Weft &#; Yarn or tape in a fabric, orientated perpendicular to the Warp yarn during weaving. This would go from left to right in the body fabric.
Big Packing are exported all over the world and different industries with quality first. Our belief is to provide our customers with more and better high value-added products. Let's create a better future together.
Woven &#; Combined with many polypropylene yarns or tapes in two directions (warp and weft) to form fabric.
Denier &#; The weight of yarn in grams per 9,000 meters.
Fabric Mesh &#; The measure of the density of the fabric weave, measured as the number of yarns per inch in both the Warp and Weft directions. Like 10×10 mesh.
Fabric Weight &#; The measure of the fabric weight in ounces per square yard or grams per 100 square centimeters.
Stitches per Inch &#; A sewing specification requiring &#;X&#; number of stitches per inch. Like 4 stitches per inch.
Seam &#; A sew line made by the attachment / assembly of two or more components.
Top Hemmed / Hemming &#; A fold and sew operation which prevents fraying of cut fabric. This also provides a clean finish to the woven polypropylene bag. It may be either towards the inside or outside of the bag.
Body Fabric &#; The tubular portion of a seamless or circular woven bag.
Breathable Fabric / Bags &#; Uncoated or non-laminated fabric / bags.
Circular Woven Bag &#; Also called a tubular bag, it is made from fabric woven on a circular loom, which is then cut to the proper length for a specified bag height, thereby eliminating the seams on each of the bag&#;s sides.
Coated Fabric / Bags &#; Fabric or bag which is coated / laminated with Polypropylene (PP) to prevent moisture intrusion or sifting of the contents. Also called Non-breathable or Laminated fabric / bags.
Bag Size &#; width and longth. Longth dimension of the woven polypropylene bag measured from the Top Seam to the Bottom Seam.
Printing Design &#; A drawing supplied by the plant for the prospective customer&#;s review and approval, prior to production, in order to assure compliance with the customer&#;s needs and expectations.
UV Stabilized &#; A feature of an unit of woven polypropylene bag that provides protection from prolonged exposure to the sun&#;s degrading UV rays. A pigment is added to the resin prior to extrusion of the yarns to provide this protection.
1. Is this a new project or an existing one?
2. What are you trying to do?
3. What are you packaging? (grain, beans, chemicals, etc)
4. How many pounds or kilograms do you want/require?
5. What size do you need?
6. Do you want coated (water resistant) or uncoated (breathable)?
7. What features do you need?
7.1 Insert handle
7.2 Insert tag
7.3 PP gusset
7.4 Paper gusset
7.5 Hemmed top
7.6 Easy (E-Z) open
7.7 Double bag
7.8 Insert liner
7.9 Ventilation
8. Do you want it printed or plain?
9. If printed, do you want direct printing or laminated?
10. How many do you need?
11. How soon do you need them?
Some most common sizes of woven polypropylene bags for your reference
You can find it here.
You can find it here and here.
You can find it here.
Attention:
If you are interested in purchasing bags from us, please note that we have a MOQ of 20,000 units, as we are a direct and professional manufacturer.
Because if less than this quantity, the price will be not so cost-effective than buying from a local distributor or online (for example, Amazon). The importing process is complicated, and may involve duty and tariff for one-time small purchase.
Let us know if there&#;s a missing while you&#;re interested in. We&#;ll be always here to assist.
PP woven bags have garnered a lot of popularity in the market over the years. More and more people are becoming familiar with PP / HDPE woven fabric and sacks with lamination and printing. Statistical figures also indicate a rapid rise in the use of PP Woven bags in India. If you have a lot of questions and confusion regarding this bag, then you have come to the right place. This guide from us, a renowned Indian manufacturer of woven fabric roll, will tell you all about PP woven bags.
PP woven fabric roll and bag is made from polypropylene resin. Polypropylene, shortened as PP, is a type of thermoplastic resin material. Its production takes place by a process known as the polymerization of propylene. Therefore, woven polypropylene refers to polypropylene strips/threads woven in two directions. This forms a heavy-duty material that is both light and strong.
Weaving is a method whereby many tapes or threads get woven in two directions- warp and weft. The result is a PP woven fabric roll that is suitable for plastic industry needs. The plastic film is first of all drawn into filaments, and then it is woven into cloth/sheet/fabric. Finally, the result is PP / HDPE woven fabric and sacks with lamination and printing.
There are various kinds of PP woven bags India available in the market. Some PP/HDPE woven sacks manufacturers specialize more on some kinds of bags over others depending upon their expertise. Let us take a look at some of the major kinds of PP woven bags.
Traditional woven PP bags: This involves products that are made of woven plastic that may be uncoated or woven PP bonded. Such a bag is suitable for carrying a weight of 5&#;50 kg. It is suitable for products like agricultural products, fertilizers, animal feed, sugar, salt, flour, raw materials and chemicals.
PP Woven Bag with Bottom Splint: The most important characteristic of this bag is its 1 layer of PP woven fabric that has a coating of PP bonding plastic. Moreover, the ends of the bag can be either glued or not with PP strips. Also, they are sewed with cotton thread and are given shape at the corner.
PP Woven Bag Laminated Film: Their formation takes place from woven PP laminated BOPP film. The folding of the ends of this bag happens with a splint. Moreover, the sewing of such bags usually takes place from cotton thread. They can be stuck with a PP flap, resulting in the formation of a bag with block shape.
Exporters of woven bags would realize the importance of the characteristics of these bags. Below are the properties or characteristics of these bags.
The production process of PP woven bags can slightly differ among PP/HDPE woven sacks manufacturers. Nevertheless, the most common processes or steps include the following:
Tape Extrusion: This is the most important process for any manufacturer of woven fabric roll and bag. Here, the mixture is heated to a particular temperature, so as to facilitate plasticization. Afterwards, the mixture is extruded in a flat sheet of cloth and left to cool in a water tank. Once cooled, the splitting of the flat sheet takes place into strips. The heating, stretching, and cooling of the flat tape will then take place multiple times to attain the desirable linear tensile strength.
Circular Weaving: Woven packaging that is made from the tubular fabric is weaved by a machine that utilizes PP flat tape. There are shuttles in the circular weaving machine that weave the tape to make tubular structure woven fabric.
Rotogravure Printing: Rotogravure printing is becoming more and more common among PP/HDPE woven sacks manufacturers. Here the lamination of the woven package takes place with a BOPP film layer. The printing of the Biaxially Oriented Polypropylene (BOPP) film takes place by using a rotogravure printing machine.
PP Woven bags possess notable features and attributes. This fact is further strengthened by their environmentally-friendly nature. At a time when enterprises and customers struggle to search for environmental-friendly products, PP woven bags are a lovely choice. All signs from top PP/HDPE woven sacks manufacturers indicate that PP woven bags are here to stay.
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