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{"title":"100% Recyclable Biodegradable Kraft Paper Valve Bags with Long Shelf Life for","imgUrl":"https:\/\/img.chinax.com\/nimg\/93\/e8\/1004374df99b60e0dd5e504628bc-200x200-1\/100_25_recyclable_biodegradable_kraft_paper_valve_bags_with_long_shelf_life_for.jpg","attrs":{"Delivery Time":"30days","Productname":"Paper Valve Sacks","Place of Origin":"Henan Huayuan","Usage":"Packaging Of Cement, Flour, Chemicals, And Powders"}}
{"title":"3 Layer Industrial Paper Pp Woven Valve Bag Load Bearing Capacity 20kg\/25kg\/50kg","imgUrl":"https:\/\/img.chinax.com\/nimg\/e7\/c3\/b19ca3e8dd8fb10a3c0637afe72b-200x200-1\/3_layer_industrial_paper_pp_woven_valve_bag_load_bearing_capacity_20kg_2f25kg_2f50kg.jpg","attrs":{"Brand Name":"HUAYUAN","Model Number":"2500005","Certification":"GB\/T19001-2016\/IS09001:2015","Place of Origin":"Henan Xinxiang China"}}
{"title":"Recyclable And Biodegradable Paper Valve Sacks Polyethylene For Bulk Material","imgUrl":"https:\/\/img.chinax.com\/nimg\/39\/28\/a44a9813646f0d0ec42ed669a196-200x200-1\/recyclable_and_biodegradable_paper_valve_sacks_polyethylene_for_bulk_material_storage.jpg","attrs":{"Place of Origin":"Henan Xinxiang China","Certification":"GB\/T19001-2016\/IS09001:2015","Minimum Order Quantity":"10000","Price":"Negotiable"}}
{"title":"Typically 80 to 120 Grams Per Bag Paper Valve Sacks 25kg Size Featuring Optional","imgUrl":"https:\/\/img.chinax.com\/nimg\/0b\/17\/a3647c6031b6c7e7c687d2078c97-200x200-1\/typically_80_to_120_grams_per_bag_paper_valve_sacks_25kg_size_featuring_optional_polyethylene_or_other_inner_coatings.jpg","attrs":{"Payment Terms":"L\/C,D\/P,T\/T","Certification":"GB\/T19001-2016\/IS09001:2015","Minimum Order Quantity":"10000","Price":"Negotiable"}}
{"title":"Self opening Paper Valve Sacks Kraft Paper For Packaging Granular And Powdered","imgUrl":"https:\/\/img.chinax.com\/nimg\/49\/77\/de26c936dc033da14cd2874f4db5-200x200-1\/self_opening_paper_valve_sacks_kraft_paper_for_packaging_granular_and_powdered_materials.jpg","attrs":{"Payment Terms":"L\/C,D\/P,T\/T","Brand Name":"HUAYUAN","Model Number":"25000065","Place Of Origin":"Henan China"}}
{"title":"10kg Multiwall Kraft Paper Bags Durable Customizable Printing Up To 7 Colors","imgUrl":"https:\/\/img.chinax.com\/nimg\/c1\/ec\/14eabaffb5b65d2b60d6f48fdad2-200x200-1\/10kg_multiwall_kraft_paper_bags_durable_customizable_printing_up_to_7_colors.jpg","attrs":{"Payment Terms":"L\/C,D\/P,T\/T","Place of Origin":"Henan Xinxiang China","Certification":"GB\/T19001-2016\/IS09001:2015","Minimum Order Quantity":"10000"}}
{"title":"High Tear Resistance Kraft Paper Paper Valve Sacks For Bulk Commodity Packaging","imgUrl":"https:\/\/img.chinax.com\/nimg\/3e\/13\/9a854d6c56af335ab6e6116ee1b7-200x200-1\/high_tear_resistance_kraft_paper_paper_valve_sacks_for_bulk_commodity_packaging.jpg","attrs":{"Material":"Kraft Paper","Stacking Strength":"Good Stacking Strength For Transportation","Tear Resistance":"High","Inner Coating":"Optional Polyethylene Or Other Coatings"}}
Kraft paper valve bags are premium packaging solutions specifically engineered for the industrial powder sector. Manufactured from multiple layers of high-quality pure wood pulp kraft paper composite, these bags feature a square bottom valve structure compatible with fully automatic filling equipment.
Designed for packaging dry, ultra-fine materials including carbon black, silica, rubber additives, chemical powders, and building material powders, these bags maintain structural integrity for neat stacking and efficient handling.
Key Features
Superior Powder Leakage Prevention: Unique three-layer staggered perforation process eliminates bulging and prevents powder leakage between paper layers
High Strength Construction: Multi-layer composite virgin kraft paper provides exceptional tensile strength, tear resistance, and compression resistance
Breathable Pressure Relief: Micro-perforation staggered venting system ensures rapid air release during filling, preventing bag deformation
Moisture Protection: Optional high-strength PE inner liner creates effective moisture barrier to prevent caking and deterioration
Automatic Sealing: Self-locking valve structure seals automatically after filling, preventing powder escape and maintaining clean work environments
Environmental Compliance: Odorless, pollution-free, recyclable, and biodegradable materials meet international packaging standards
High-Definition Printing: Multi-color printing capabilities with precise registration for enhanced brand presentation
Technical Specifications
Material Standards: High-quality thickened kraft paper from 100% wood pulp, available in double-layer, triple-layer, or quadruple-layer structures with optional PE inner film lamination.
Process Standards: Square glued bottom with reinforced construction, precise valve alignment, and ±5mm dimensional tolerance for consistent performance.
Performance Parameter
Specification
Tensile Strength
Multi-layer composite provides uniform strength to prevent tearing during handling and transportation
Breathability
Misaligned micro-pores enable rapid air release, eliminating bag bulging and deformation
Sealing Performance
Self-sealing valve prevents fine powder leakage and dust generation
Moisture Resistance
Inner film blocks moisture effectively, preventing powder clumping
Impact Resistance
Designed to withstand drops and compression with minimal damage rate
Anti-Static Function
Optional feature available for carbon black powder applications
Standard Weight Capacities: 10kg, 15kg, 20kg, 25kg, 40kg, and 50kg (25kg being the mainstream industrial size)
Industry Applications
Carbon Black Industry
Specialized packaging for rubber carbon black, pigment carbon black, and conductive carbon black with anti-static and anti-powder seepage technologies.
Silica & White Carbon Black
Optimized packaging for precipitation and vapor phase white carbon black with staggered perforations to prevent leakage and moisture clumping.
Rubber Chemicals
Safe packaging for rubber additives, zinc oxide, kaolin, and pigment powders ensuring efficient handling and storage.
Construction Materials
Robust packaging for putty powder, dry mortar, tile adhesive, gypsum powder, and cement with stable stacking capabilities.
Food & Feed Powders
Food-grade material options available for starch, food additives, and feed carrier powders meeting safety standards.
Export Packaging
International shipping solutions resistant to maritime humidity, compression, and transportation stresses.
Customization Options
Layer Configuration: Two-layer, three-layer, four-layer, three paper plus one film, and four paper plus one film designs
Breathability Technology: Standard perforation or sealed, pore-free moisture-proof variants
Functional Features: Anti-static properties, superior moisture resistance, reinforced weight-bearing capacity, anti-powder seepage, and high-temperature resistance
Size Specifications: Full range from 10-50kg, including non-standard lengths, widths, and special bag shapes
Printing Services: Full-color printing for brand logos, product specifications, barcodes, QR codes, and multilingual layouts
Valve Options: Inner valves, outer valves, extended valves, and reinforced valves for various filling equipment
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...