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{"title":"10kg 25kg Pasted Valve Multiwall Paper Bags In 70 To 120 Gsm Thickness","imgUrl":"https:\/\/img.chinax.com\/nimg\/83\/df\/b27900729131173f9dc1dbe77ee9-200x200-1\/10kg_25kg_pasted_valve_multiwall_paper_bags_in_70_to_120_gsm_thickness.jpg","attrs":{"Coloroptions":"Natural Brown, White, Or Customized Colors","Usage":"Packaging Of Cement, Flour, Chemicals, And Powders","Closuretype":"Valve Closure For Automatic Filling","Printing":"Custom Logo And Design Printing Available"}}
{"title":"High Tear Resistance Kraft Paper Valve Bags with Moisture-Proof Lining and","imgUrl":"https:\/\/img.chinax.com\/nimg\/9e\/df\/6eb49fcfa0e81de7a6e70133d6fa-200x200-1\/high_tear_resistance_kraft_paper_valve_bags_with_moisture_proof_lining_and_customizable_sizes_for_industrial_packaging.jpg","attrs":{"Model Number":"250000113","Certification":"GB\/T19001-2016\/IS09001:2015","Tearresistance":"Strong Tear Resistance","Payment Terms":"L\/C,T\/T"}}
{"title":"Self-sealing Valve Multiwall Paper Bags with High Moisture Resistance and","imgUrl":"https:\/\/img.chinax.com\/nimg\/19\/ee\/f092321bfa5336c83c591427f55c-200x200-1\/self_sealing_valve_multiwall_paper_bags_with_high_moisture_resistance_and_customizable_printing_for_bulk_powder_packaging.jpg","attrs":{"Place Of Origin":"Henan China","Capacity":"10kg To 25kg","Payment Terms":"L\/C,T\/T","Bagsize":"Customizable (commonly 25kg, 50kg)"}}
{"title":"Multiwall Kraft Valve Paper Bags for Packaging Chemical Materials","imgUrl":"https:\/\/img.chinax.com\/nimg\/44\/ff\/e9b8587bb806af3751fae2f51011-200x200-1\/multiwall_kraft_valve_paper_bags_for_packaging_chemical_materials.jpg","attrs":{"Brand Name":"HUAYUAN","Model Number":"250003","Certification":"GB\/T19001-2016\/IS09001:2015","Place of Origin":"Henan Xinxiang China"}}
{"title":"Recyclable Paper Valve Bags Durable Packaging Bags for Powders and Environmental","imgUrl":"https:\/\/img.chinax.com\/nimg\/7b\/c8\/1ae6cb24f59f56a747f3a6e033d3-200x200-1\/recyclable_paper_valve_bags_durable_packaging_bags_for_powders_and_environmentally_responsible_material.jpg","attrs":{"Usage":"Suitable For Cement, Flour, Chemicals, And Powders","Sealing Method":"Heat Sealing Or Stitching","Recyclability":"100% Recyclable","Strength":"High Tensile Strength"}}
{"title":"Valve Multiwall Paper Sack Heat Sealing Or Stitching Ideal For Bulk Powder","imgUrl":"https:\/\/img.chinax.com\/nimg\/33\/25\/f3fc5e960788989bb301dd18e311-200x200-1\/valve_multiwall_paper_sack_heat_sealing_or_stitching_ideal_for_bulk_powder_packaging.jpg","attrs":{"Valve Type":"Self-sealing Valve","Sealing Method":"Heat Sealing Or Stitching","Color":"Natural Brown Or White","Material":"Kraft Paper"}}
Packaging Of Cement, Flour, Chemicals, And Powders
Printingoptions
Custom Logo And Text Printing Available
Productname
Paper Valve Bags
Supply Ability
20000000PC/year
Packaging Details
Pallet
Environmentalfriendly
Recyclable And Biodegradable
Closuretype
Valve Closure For Automatic Filling
Certification
GB/T19001-2016/IS09001:2015
Model Number
250000111
Brand Name
HUAYUAN
Place of Origin
Henan Huayuan
Self-sealing Valve Kraft Paper Valve Bags
Kraft paper valve bags are specially designed for fully automatic filling and packaging of ultra-fine powders, chemical powders, and building material granules. This innovative packaging solution is engineered to meet the specific needs of these industries with high efficiency and reliability.
Constructed using a multi-layer, high-strength, virgin kraft paper combined with an inner laminated film, the bags ensure durability and excellent protection of the contents. The incorporation of a square bottom valve structure provides enhanced stability and ease of handling during the filling process.
Replacing traditional open-mouth bags, kraft paper valve bags have become the mainstream standardized packaging choice in industries such as carbon black, silica, titanium dioxide, pigments, additives, and building materials powders. Their design optimizes automated filling operations while maintaining product integrity.
Key Features
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.
Technical Specifications
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
Industry Applications
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
Customization Options
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
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2007-09-18
Total Annual:
20000000-20000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Xinxing Huayuan Paper-Plastic Bag Co., Ltd. Company Profile
Company Overview :
Established on September 18, 2007, Xinxing Huayuan Paper-Plastic Bag Co., Ltd. specializes in the paper packaging industry, providing high-quality paper-plastic packaging solutions for customers. Located in the Xinduo Ec... Xinxing Huayuan Paper-Plastic Bag Co., Ltd. Company Profile
Company Overview :
Established on September 18, 2007, Xinxing Huayuan Paper-Plastic Bag Co., Ltd. specializes in the paper packaging industry, providing high-quality paper-plastic packaging solutions for customers. Located in the Xinduo Ec...
