High Tear Resistance Paper Valve Sacks with Moisture Resistant PE Lining and 100% Recyclable Biodegradable Design
Product Details
| Tearresistance: | High | Environmental Friendly: | 100% Recyclable And Biodegradable |
|---|---|---|---|
| Moistureresistance: | Yes, With PE Lining | Usage: | Packaging Of Cement, Flour, Chemicals, And Powders |
| Highlight: | Cement Paper Bag, Pvc Resin Paper Bag | Productname: | Paper Valve Sacks |
| Logo: | Accept Customization | Valve Position: | Corner Valve |
| Highlight |
High Tear Resistance Paper Valve Sacks,Moisture Resistant Kraft Paper Valve Bags,100% Recyclable Industrial Valve Sacks |
||
Product Description
Kraft paper valve bags are specialized high-end packaging products designed for the industrial powder sector. They are made from multiple layers of premium pure wood pulp kraft paper combined with a square bottom valve structure, making them compatible with fully automatic filling equipment.
These bags are primarily used for packaging dry ultrafine materials such as carbon black, white carbon black, silica, rubber additives, chemical powders, and building material powders. Their sturdy bag shape allows for neat stacking, and they possess high strength to resist impact and compression.
With these features, kraft paper valve bags effectively address common industry challenges including bulging during filling, outer layer powder leakage, powder moisture absorption, damage during transportation, and powder seepage during storage. As a result, they have become the mainstream packaging solution for powder factories involved in export, mass production, and long-term storage.
Specifically optimized for ultra-fine powders, this product employs a unique three-layer staggered perforation process to replace the traditional four-layer perforation. This design ensures smooth air ventilation without causing bulging, effectively preventing powder leakage from the paper layer seams.
Made from high-toughness virgin kraft paper with multi-layer composite forming, the material boasts strong tensile strength, tear resistance, and compression durability. It withstands long-distance transportation and multi-layer stacking without easily breaking.
Featuring a precise micro-perforation staggered air release design, the packaging rapidly expels air during filling, keeping the bag flat without inflation. This results in neat and beautiful stacking, ideal for high-speed automated filling lines.
When paired with a high-strength PE inner liner, the packaging provides excellent sealing that effectively blocks air and moisture. This prevents moisture absorption and clumping of white carbon black and chemical powders.
The valve adopts a self-locking structure that automatically seals upon completion of filling. This feature prevents fine powder dust from dispersing and material spillage, keeping the workshop environment clean and dust-free.
The packaging is odorless, pollution-free, recyclable, and biodegradable. It meets both domestic and international industrial packaging environmental standards, making it well-suited for cross-border export orders.
Supporting multi-color high-definition printing with precise color matching and no fading, the packaging effectively showcases brand image and improves the product's overall market appeal.
The product is made from high-quality, full wood pulp, stretch-thickened kraft paper. The paper surface is smooth, free from oil stains, holes, or cracks. It can be constructed in double-layer, triple-layer, or four-layer structures. Additionally, an optional PE inner film laminating is available, which is firmly bonded without peeling or delamination.
The bag features a square pasted bottom formed integrally with reinforced weight-bearing capacity to ensure uniform stress distribution. The valve mouth is neat with moderate tightness, compatible with fully automatic and semi-automatic filling equipment, preventing machine jams and material leakage. Dimension deviations are strictly controlled within ±5mm.
| Performance Parameter | Description |
|---|---|
| Tensile Strength | The multi-layer paper composite provides uniform tensile force, preventing tears during full-load stacking, handling, and transportation. |
| Breathability | Misaligned micro-holes allow quick air release, avoiding inflation and deformation during filling. |
| Sealing Performance | The valve self-seals effectively to prevent powder leakage and dust emission, even with ultra-fine powders. |
| Moisture Resistance | The inner film blocks water vapor, effectively preventing powder moisture absorption and caking. |
| Impact Resistance | Resistant to drops and compression, ensuring minimal damage during express and full-truck logistics. |
| Anti-Static Properties (Optional) | Meets anti-static requirements for carbon black powder filling. |
The bag body must be clean without wrinkles, damage, or bubbles and delamination. Printing should be clear with no ghosting or blurring. The bottom, sides, and valve mouth must be free from cracks or burrs. Each batch undergoes full inspection to ensure consistent and stable quality.
Common weight capacities include 10kg, 15kg, 20kg, 25kg, 40kg, and 50kg. The mainstream industrial powder standard is 25kg, and custom non-standard sizes are supported upon request.
Dedicated packaging solutions for various types of carbon black, including rubber carbon black, pigment carbon black, conductive carbon black, and cracked regenerated carbon black. Supports anti-static and anti-black powder penetration technologies.
Optimized packaging for both precipitated and vapor-phase white carbon black featuring staggered perforations to prevent powder leakage, seepage, and moisture-induced caking.
Packaging solutions for dry powders in the rubber chemical sector, including rubber additives, zinc oxide, kaolin, filler powders, resin powders, and pigment powders.
Packaging for construction powders such as putty powder, dry mortar, tile adhesives, gypsum powder, and cement providing stable stacking and strong load-bearing capacity.
Packaging for starch, food additives, and feed carrier powders, with options to use food-grade materials to ensure safety and compliance.
Compatible with fully automated filling lines, supporting high-speed filling without bag jams or bloating, thus improving production efficiency.
- Layer Structure Customization: Dual-layer, triple-layer, four-layer, three paper-one film, and four paper-one film configurations
- Breathability Process Customization: Standard perforation and sealed moisture-proof variants
- Functional Process Customization: Anti-static properties, enhanced moisture resistance, thickened load-bearing capacity, reinforced powder leakage prevention, and high-temperature adaptation
- Size and Specification Customization: Full range from 10kg to 50kg bags with options for non-standard lengths, widths, and special bag shapes
- Printing Customization: Full-color printing featuring brand logos, company information, product parameters, barcodes, QR codes, foreign language layouts, and original artwork
- Valve Customization: Internal valves, external valves, extended valves, and reinforced valves to fit various filling equipment
Product Highlights
Customers Requests Paper Valve Sacks Featuring Customization Surface Treatment Designed for Optimal Material Protection Product Overview Kraft paper valve bags are specialized high-end packaging products designed for the industrial powder sector. They are made from multiple layers of premium pure ...
Easy Opening And Filling Pasted Paper Valve Bags Multiwall 10kg To 25kg Weightcapacity
Easy Opening And Filling Pasted Valve Packaging Bags Multiwall Construction Offers Strength And Convenient Valve Access Product Description: The self-adhesive valve multi-layer paper bag is a type of high-strength packaging bag with a multi-layer structure, specifically designed for heavy-duty ...
Typically 80 to 120 Grams Per Bag Paper Valve Sacks 25kg Size Featuring Optional Polyethylene or Other Inner Coatings
Typically 80 to 120 Grams Per Bag Paper Valve Sacks 25kg Size Featuring Optional Polyethylene or Other Inner Coatings Product Description: The paper valve bag is made from high-quality multi-layer kraft paper, offering excellent tear resistance and durability. It is specifically designed for ...
Self Sealing Industrial Multiwall Paper Bags For Bulk Powdered Goods
Self-sealing Multiwall Paper Bags Valve Mouth Engineered for Optimal Protection and Easy Handling of Bulk Powdered Goods Product Description: Paper valve bags are made from high-quality multi-layer kraft paper, offering excellent tear resistance and durability. These bags are specifically designed ...
Foldable Garden Brown Paper Yard Waste Bags Durable 60g 120gm2 Paper Type Paper Yard Trash Bags
Foldable Garden Waste Bags Featuring Durable 60g120gm2 Paper Type Ideal for Yard Leaf Grass and Garden Cleanup Solutions Product Description: Lawn paper bags are environmentally friendly packaging products specially designed for lawn care, gardening, and agricultural materials. These bags are ...
Please use our online inquiry contact form below if you have any questions, our team will get back to you as soon as possible.
