QINGDAO SG GLOBAL PACKAGING CO. ,LTD.

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7 months ago | [YT] | 0

QINGDAO SG GLOBAL PACKAGING CO. ,LTD.

Are woven polypropylene fabric bags breathable?

The breathability of woven polypropylene (PP) Fabric sacks bags depends on their construction, specifically whether they are unlaminated or laminated. Here’s a clear breakdown:
1. Unlaminated Woven PP Bags: BREATHABLE
Why? The woven structure creates tiny gaps between the PP tape threads, allowing air and moisture vapor to pass through.
Benefits:
Prevents condensation and moisture buildup inside the bag.
Ideal for products that need ventilation (e.g., potatoes, onions, grains).
Reduces risk of mold, rot, or spoilage during storage/transport.
2. Laminated Woven PP Bags (LWP): NOT BREATHABLE
Why? A layer of polypropylene film (usually BOPP) is fused to the woven fabric, sealing the gaps. This creates a barrier against air, moisture, and dust.
Benefits:
Waterproof protection (e.g., for fertilizers, chemicals, or food products like flour/sugar).
Better print quality for branding.
Enhanced durability and contamination resistance.
Key Factors Influencing Breathability:
Factor Impact on Breathability
Lamination Laminated = Non-breathable; Unlaminated = Breathable (most critical factor).
Fabric Density Tighter weaves reduce airflow (but even tight weaves remain breathable if unlaminated).
UV Treatment/Additives Do not affect breathability (only impact sun resistance).
Coatings Additional coatings (e.g., for water repellency) may further reduce breathability.

When Breathability Matters:
Agriculture: Storing potatoes, onions, or grains — breathability prevents rot.
Construction: Sand/cement bags may need airflow to reduce moisture clumping.
Food Storage: Coffee beans or spices may require ventilation to maintain freshness.
When Non-Breathability is Preferred:
Chemicals/Fertilizers: To prevent moisture absorption or leakage.
Food Safety: To block contaminants (e.g., flour, sugar, powdered products).
Humid Environments: To protect contents from external humidity.
Special Cases:
FIBCs (Jumbo Bags): Often unlaminated and breathable, but can be ordered laminated or with ventilation panels for specific needs.
Liners: Adding an inner liner (e.g., PE film) blocks breathability even in unlaminated bags.
In Summary:
Unlaminated woven PP bags = Breathable (air/moisture vapor can pass).
Laminated woven PP bags = Non-breathable (airtight barrier).
Choose unlaminated for products needing airflow; opt for laminated if moisture/contaminant protection is critical!

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8 months ago | [YT] | 0

QINGDAO SG GLOBAL PACKAGING CO. ,LTD.

What is PP woven fabric roll used for?

PP woven fabric rolls (polypropylene woven rolls) are the unprocessed, bulk material used to manufacture countless industrial, agricultural, and commercial products. They serve as the foundational "raw fabric" cut and stitched into finished goods. Here’s a breakdown of their top uses:

Core Applications of PP Woven Fabric Rolls

Industry Primary Uses Key Examples
Packaging ✅ Cut/sewn into sacks, bags, FIBCs - 50 kg fertilizer bags
- 1-ton bulk "jumbo bags"
- Woven shopping totes
Agriculture ✅ Crop covers, grain storage liners, greenhouse shading, soil weed barriers - Silage tarps
- Breathable onion/potato storage sacks
- Nursery ground cover
Construction ✅ Debris containment, concrete curing blankets, temporary enclosures - Safety fencing
- Dust barriers
- Scaffolding weather wraps
Geotextiles ✅ Soil stabilization, erosion control, drainage systems - Road embankment reinforcement
- Landfill liners
- Railway track bedding
Furniture ✅ Outdoor/indoor upholstery, protective covers - UV-stabilized garden chair fabric
- Furniture slipcovers
Logistics ✅ Pallet wrapping, container liners, cargo protection - Moisture-proof container liners
- Stretch wrap alternatives
Specialty ✅ Promotional banners, disposable medical gowns, luggage material - Event backdrops
- PPE during shortages
- Durable suitcase shells
Customization Options (Pre-Processing)
Fabric rolls are modified before cutting to meet specific needs:

Lamination:
Bonding BOPP film → Creates waterproof barrier (e.g., for cement bags).
Coatings:
PE coating for extra moisture resistance; UV treatment for outdoor longevity.
Printing:
Roll-to-roll digital/flexo printing → Branded tarps or retail bags.
Additives:
Fire retardants, anti-slip coatings, or anti-static agents for safety.

Standard Roll Specs
Parameter Typical Range Notes
Width 1–4 meters (39"–157") Custom widths available
Length 100–5,000 meters (328'–16,400') Varies by grammage & buyer needs
Grammage 60–200 g/m² Lightweight = 80 g/m² (e.g., totes)
Heavy-duty = 150 g/m² (e.g., FIBCs)
Weave Type Plain, leno, or circular weave Affects tensile strength & breathability

Why Buy Rolls Instead of Finished Products?
Cost Savings: Eliminate middle-step markups.
Customization: Cut/sew locally to exact dimensions (e.g., unique-sized FIBCs).
Efficiency: Produce large volumes of standardized items (e.g., 10,000 sandbags).
Versatility: One roll serves multiple end-uses (e.g., same fabric → bags + tarps).
Real-World Impact
Agriculture: 1 roll = 2,000+ crop storage sacks → reduces post-harvest loss.
Disaster Relief: Rapid production of sandbags from rolls during floods.
Sustainability: Recycled PP rolls (from post-consumer waste) cut plastic pollution.
✅ Summary: PP woven fabric rolls are the unsung heroes of bulk industry—transforming into tarps, sacks, geotextiles, and more through cutting, printing, and sewing. Their flexibility makes them indispensable in global supply chains.

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11 months ago | [YT] | 0

QINGDAO SG GLOBAL PACKAGING CO. ,LTD.

Title
Why choose polypropylene woven bags for packaging?
Keyword
PP woven bag PP woven sack Woven polypropylene bag
Abstract
Polypropylene woven bags have the characteristics of strong tensile strength, high load-bearing capacity, lightweight design, environmental protection and recyclability. They are widely used in industrial and agricultural product packaging bags such as feed woven bags, chemical woven bags, putty powder woven bags, urea woven bags, cement woven bags, vegetable mesh bags, fruit mesh bags, food packaging bags such as rice, flour, corn, logistics packaging bags, freight packaging bags and other logistics transportation and storage covering materials.
Text
Graded Text Title 1
Manufacturing, characteristics, applications, and specifications of
polypropylene woven bags
In terms of woven bags, plastic woven bags are mainly made of polypropylene as the
main raw material, extruded and stretched into flat silk, and then woven, woven, and
bagged.
The color of woven bags is generally white or gray white, non-toxic and odorless. Although they are made of various chemical plastics, they have strong environmental protection and a large recycling capacity;Strong tensile strength and load-bearing capacity; It also features lightweight design.
Woven bags have a wide range of uses, mainly for packaging and assembling various items, and are widely used in industry; Since the development of geotextiles in the 1980s, the application fields of plastic woven fabrics have been expanded, widely used in small water conservancy, electricity, highways, railways, seaports, mining construction, and military engineering construction In these projects, geosynthetic materials have functions such as filtration, drainage, reinforcement, isolation, and anti-seepage. Plastic geotextile is one type of synthetic geosynthetic material
Plastic woven bags are mainly made of polypropylene resin, extruded and stretched into flat fibers, and then woven and bagged.
Composite plastic woven bags are made by compounding plastic woven cloth as the substrate through the casting method.
Used for packaging powdered or granular solid materials and flexible items. Composite plastic woven bags are divided into two in one bags and three in one bags according to their main material composition.
According to the sewing method, it can be divided into sewn bottom bag, sewn edge bottom bag, inserted pocket, and adhesive sewn bag making.
According to the effective width of the bag, it is divided into 450mm, 500mm, 550mm, 600mm, 650mm, and 700mm. Special specifications are agreed upon by the supply and demand parties.
Graded Text Title 2
The development trend of polypropylene woven bags.Green packaging that conforms to sustainable development。
Green packaging, also known as pollution-free packaging and environmentally friendly packaging, refers to packaging that is harmless to the ecological environment and human health, can be reused and regenerated, and is in line with sustainable development.
Implement packaging reduction. Green packaging should be a moderate packaging with minimal usage, while meeting the requirements of protection, convenience, and sales. European and American countries have listed reducing packaging as the preferred measure for developing harmless packaging.
Throughout the entire lifecycle of packaged products, there should be no pollution or pollution to the environment. The entire life process of packaging products, from raw material collection, material processing, product manufacturing, product use, waste recycling, to final disposal, should not cause harm to human health and the environment.
Reduce, Reuse, Recycle, and Degradable are the 3R and 1D principles recognized worldwide for the development of green packaging in the 21st century.
Graded Text Title 3
Selection principle of package
1. Select recycled materials
Choosing recycled materials can not only improve the utilization rate of packaging materials and reduce production costs, but also save a lot of energy and reduce the consumption of other resources, while reducing emissions to the environment.
2. Select recyclable materials
Choosing packaging materials with good recycling and reuse performance is one of the effective ways to achieve green packaging.
3. Choose biodegradable materials
Degradability refers to the ability of non recyclable packaging waste to decompose, decay, and return to nature or ecology within a specific period of time.
4. Try to use the same packaging material as much as possible
Try to use the same packaging material and avoid using multi-layer packaging bodies composed of different materials to reduce the separation of packaging materials and improve the recycling and reuse performance of packaging materials.
5. Minimize the use of packaging materials as much as possible while meeting the requirements of packaging protection, aesthetics, convenience, and sales.
Reducing the use of materials not only means reducing raw material costs and manufacturing costs, but may also mean reducing transportation and sales costs, as well as recycling and disposal costs after packaging waste.
6. Avoid excessive packaging
Excessive packaging is of no use to consumers. When reducing packaging, it is also necessary to consider consumers' usage habits and the appearance of the product. Some packaging also needs to provide sufficient space to indicate various information about the product.
7. Reusable and refilled packaging
Reusing and refilling packaging can improve the service life of product packaging, thereby reducing its environmental impact caused by waste. At the same time, the cost of collecting and cleaning packaging materials, as well as their impact on the environment, should be considered; To establish a corresponding network and system for refilling.
8. Optimization design of packaging structure
Green packaging is achieved through the structural design of packaging materials. By changing the packaging shape to make product transportation more convenient, in order to facilitate transportation.
9. Improving product structure and packaging aims to enhance the structural strength of the product by improving its structure and form.
10. Reduce consumption; REFILL: refillable; RECYCLE: recyclable; RECORDY: Recyclable

1 year ago | [YT] | 1