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{"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"}}
Designed to Meet Diverse Packaging Needs with Custom Logo Options
Product Overview
The kraft paper valve bag is a high-strength packaging container specifically designed for industrial powders and granular materials. It is made from multiple layers of durable, stretchable kraft paper combined with a PE anti-leak inner film. This composite structure, along with a fully automatic filling valve design, makes it a leading standardized packaging solution in industries such as chemicals, construction materials, and new materials.
This product supports fully automatic spiral filling and vacuum filling production lines, enabling automatic air release during filling and ensuring bags are automatically shaped and filled to capacity. It eliminates the need for manual sealing, significantly improving packaging efficiency while reducing damage rates and labor costs.
The kraft paper valve bag is widely suitable for packaging 20 to 25 kg industrial materials such as carbon black, cellulose, latex powder, tile adhesive, putty powder, dry mortar, and chemical powders. It can be customized based on requirements concerning the number of layers, size, printing, and features like anti-leakage and anti-static properties.
Key Features
High-Strength Construction: Made from 80-100g/m² stretch kraft paper with multi-layer composite structure providing excellent tensile strength and burst resistance
Leak-Proof Design: PE film inner layer with integral heat-sealing process prevents powder leakage and dust emission
Automatic Venting: Specialized venting valve allows automatic air release during filling, preventing bag swelling
Moisture Resistance: Excellent protection against humidity and water vapor, preventing material caking
Self-Locking Valve: Automatic sealing through material pressure, eliminating manual sewing or adhesive sealing
Square Bottom Design: Neat and upright form for stable, orderly stacking and optimized warehouse space
Technical Specifications
Parameter
Specification
Common Materials
100% virgin wood pulp stretch kraft paper with PE inner liner
Standard Layers
3-layer paper + 1 PE film or 4-layer paper + 1 PE film (2-4 layers available)
Paper Weight
80g, 90g, or 100g (customizable)
Standard Loading Capacity
20kg, 25kg (custom sizes: 10kg, 40kg, 50kg)
Bag Structure
Square bottom with valve opening design
Sealing Method
Self-locking valve (no manual sealing required)
Printing Technology
1-4 color flexible eco-friendly inks with customizable logos
Quality Standards
Material Standards: 100% virgin wood pulp without recycled fibers; odorless PE film free of impurities
Lamination Requirements: Even and firm lamination without bubbling or delamination
Bottom Gluing: Firm and smooth with strong adhesion, durable against drops and heavy pressure
Valve Craftsmanship: Centered and neat with standard vent holes for quick air release
Strength Performance: Damage rate below 0.3%, stretch and impact resistant
Printing Quality: Sharp graphics with precise color registration, resistant to fading
Appearance Inspection: Flat surface without wrinkles, dimensions within ±5mm tolerance
Applications
New Materials Chemical Industry: Carbon black, silica, powder additives, and chemical fillers requiring leak-proof, dustproof packaging
Building Materials Additives: HPMC cellulose, latex powder, putty powder, dry mortar, tile adhesive with moisture-resistant properties
Agricultural and Powder Raw Materials: Fertilizer powders, feed additives, mineral powders, resin powders with quality preservation
International Export: Customizable options for marine shipping with moisture resistance and impact durability
Customization Options
Specification Customization: Sizes from 10kg to 50kg to accommodate different equipment and material densities
Layer Customization: 3-layer paper + 1-film economical version or 4-layer paper + 1-film general-purpose version
Printing Customization: Full-color printing (1-4 colors) for company logos, brand names, product information
Format Customization: Non-standard formats including side valve openings, special valve sizes, reinforced bottoms
HUAYUAN offers high-quality Paper Valve Bags designed to meet your specific needs. Our model 250000 Valve Paper Sacks are manufactured in Henan, China, ensuring excellent craftsmanship and reliability. We accept custom sizes to perfectly fit your product requirements, and finishing options are tailored according to customers' requests.
Our Custom Printed Paper Bags feature a self-opening valve type for efficient filling and sealing. You can also customize the logo to enhance your brand visibility. Committed to environmental sustainability, these bags are 100% recyclable and biodegradable, making them an eco-friendly choice for your packaging solutions.
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...
