Self-sealing Valve Kraft Paper Valve Bags with High Tear Resistance and Recyclable Biodegradable Design for Heavy Duty Packaging
Product Details
| Closuretype: | Valve Closure For Automatic Filling | Valve Type: | Self-sealing Valve |
|---|---|---|---|
| Usage: | Packaging Of Cement, Flour, Chemicals, And Powders | Environmentalfriendly: | Recyclable And Biodegradable |
| Tear Resistance: | High Tear Resistance | Printingoptions: | Custom Logo And Text Printing Available |
| Capacity: | 10kg To 25kg | Productname: | Paper Valve Bags |
Product Description
- Self-sealing Valve: Zero powder dust leakage with built-in or external valves compatible with automatic filling equipment. Automatic closure with air pressure eliminates manual sealing.
- Square Bottom Stability: Three-dimensional square bottom provides outstanding stacking stability without package collapse, ideal for warehouse storage and container shipping.
- Reinforced Construction: Multiple layers of reinforced paper (2-4 layers) offer excellent resistance to impact, tearing, and puncturing for durable transport handling.
- Moisture Protection: Food-grade PE moisture-proof inner lining prevents moisture absorption, clumping, color fading, and performance degradation.
- Automation Ready: Regular shape, uniform hardness, and accurate valve positioning compatible with domestic and international powder filling machines.
- Brand Enhancement: High-definition flexographic and full-surface printing for company logos, product information, and export labels.
| Parameter | Specifications |
|---|---|
| Paper Layers | 2, 3, or 4 layers of native kraft paper (80-100 gsm) |
| Inner Membrane | Standard PE moisture-proof, anti-static PE, or high-barrier aluminum foil |
| Bag Bottom | Square glued bottom integrated molding with double-layer reinforced heat sealing |
| Valve Types | Inner valve (mainstream), outer valve, and extended valve options |
| Size Tolerance | ±5mm for length, width, and height |
| Printing Quality | Precise color registration, no shadowing, missing prints, or smudges |
| Sealing Standards | Tight valve closure with no light permeability or powder leakage |
- Chemical Powder Industry: Carbon black, fumed silica, titanium dioxide, zinc oxide, nano powders, chemical fillers, and additive powders
- Pigment and Coating Industry: Iron oxide pigments, organic pigments, pearlescent powders, wax powders, matting powders, and color masterbatch powders
- Building Material Dry Powder Industry: Tile adhesive, putty powder, dry mortar, gypsum powder, heavy calcium carbonate, talcum powder, and insulation powders
- Rubber and Plastics Industry: Rubber reinforcing powders, plastic fillers, and modified powders with anti-static and dust-proof properties
- Size Customization: Standard sizes of 10kg, 20kg, and 25kg; custom sizes from 5kg to 50kg available
- Material and Process: Standard version (multi-layer kraft paper with PE moisture-proof inner film) or explosion-proof version (anti-static inner membrane)
- Printing Customization: High-definition flexographic printing with 1-4 colors for logos, product information, compliance standards, and export labels
- Detail Customization: Extended valve openings, reinforced bag bottoms, waterproof lamination, anti-slip surfaces, breathable designs, and tailored hardness/weight
Product Highlights
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