Self-sealing Valve Multiwall Paper Bags with High Moisture Resistance and Customizable Printing for Bulk Powder Packaging
Product Details
| Productname: | Paper Valve Bags | Capacity: | 10kg To 25kg |
|---|---|---|---|
| Bagsize: | Customizable (commonly 25kg, 50kg) | Tearresistance: | Strong Tear Resistance |
| Valve Type: | Self-sealing Valve | Moistureresistance: | High |
| Printingoptions: | Custom Logo And Text Printing Available | Environmentalfriendly: | Recyclable And Biodegradable |
Product Description
The kraft paper valve bag is a specially designed packaging solution developed for ultrafine powders, chemical powders, and building material granules. Engineered for fully automatic filling processes, it ensures efficiency and ease of use in industrial applications.
This packaging utilizes multi-layer, high-strength virgin kraft paper composite inner film technology. Combined with a square bottom valve structure, it effectively replaces traditional open-mouth bags, offering improved protection and convenience during use.
Currently serving as the mainstream standardized packaging in various industries including carbon black, white carbon black, titanium dioxide, pigments, additives, and building material powders, its advanced design meets the demanding requirements of these sectors.
- Dust-Leak Prevention: Valve-mouth self-sealing design effectively prevents dust leakage. Equipped with internal or external valve mouths precisely compatible with fully automatic filling machines. Valves automatically close under air pressure after filling, eliminating manual sealing requirements.
- Stable Stacking: Three-dimensional square bottom design ensures bags stand upright and stable without collapsing. Integrated block-shaped base keeps bag body firm and upright, allowing neat multi-layer pallet stacking with even weight distribution.
- Durable Construction: Multiple thick layers provide excellent resistance to impact and tearing. Made from 2 to 4 layers of all-wood pulp stretch kraft paper with strong tensile strength and high toughness.
- Moisture Protection: Food-grade PE moisture-proof liner isolates air, water vapor, and humidity. Prevents ultra-fine powders from absorbing moisture, agglomerating, caking, color fading, and performance degradation.
- Automation Ready: Designed for high-speed automated production with uniform shape, hardness, and precisely fitted valve mouths. Compatible with various domestic and international automatic powder filling machines.
- Brand Enhancement: Supports high-definition flexographic and full-area printing. Can display company logos, product models, net weight, standards, storage and transportation marks, and English export labels.
| Parameter | Specifications |
|---|---|
| Paper Layering | 2-layer, 3-layer, or 4-layer natural kraft paper Basis weight: 80-100 grams per square meter |
| Inner Membrane Options | Standard PE moisture-proof inner membrane Anti-static PE inner membrane High-barrier aluminum foil inner membrane (optional) |
| Bottom Construction | Square glued bottom integrated molding technique Double-layer reinforced heat seal for enhanced strength |
| Valve Design | Mainstream inner valve External valves and extended valves available Extended valves compatible with high-capacity equipment |
| Dimensional Tolerances | Length, width, and height controlled within ±5 millimeters |
| Printing Quality | Exact color registration without ghosting, missing prints, or blemishes |
| Sealing Standards | Valves close tightly to prevent light penetration or powder leakage |
- Chemical Powder Industry: Compatible with various carbon black types, fumed silica, titanium dioxide, zinc oxide, nano powders, chemical fillers, and additive powders. Meets national general packaging standards for new materials and carbon black enterprises.
- Pigment and Coating Industry: Specifically designed for iron oxide pigments, organic pigments, pearlescent powders, wax powders, matting powders, and color masterbatches. Ensures moisture protection and color lock for domestic and international shipping.
- Building Material Dry Powder Industry: Suitable for tile adhesives, putty powder, dry mortar, gypsum powder, heavy calcium carbonate, talc powder, and insulation powders. Offers stable stacking and strong load-bearing capabilities.
- Rubber and Plastic Industry: Accommodates rubber reinforcement powders, plastic fillers, and modified powders with anti-static and dust-proof features. Designed for automated feeding production lines in rubber mixing workshops.
- Size Customization: Standard stock sizes include 10kg, 20kg, and 25kg bags. Custom sizes available from 5kg to 50kg with special bag styles to fit various filling equipment.
- Material and Process Customization:
- Standard Version: Multi-layer kraft paper with PE moisture-proof inner film for general powder materials
- Explosion-Proof Version: Multi-layer kraft paper with anti-static inner film for carbon black and nano powders
- Printing Customization: High-definition flexographic printing supports 1 to 4 colors. Customizable elements include company logos, product information, handling marks, QR codes, and contact details.
- Detail Customization: Extended valve openings, reinforced bag bottoms, overall waterproof lamination, anti-slip surfaces, special breathable designs, and customized hardness/weight adjustments available.
Product Highlights
Up To 25 Kg Multiwall Paper Valve Bags - Durable Packaging Solution for Bulk Powder and Granular Materials Product Overview The kraft paper valve bag is a specially designed packaging solution developed for ultrafine powders, chemical powders, and building material granules. Engineered for fully ...
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.
