Custom Size Self Opening Valve Paper Bags 80-100 Grams For Industrial Packaging
Price:
Negotiable
MOQ:
10000
Delivery Time:
30days
Brand:
HUAYUAN
Product Description
Customization and Valve Types Paper Valve Bags
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
- Functional Customization: Anti-static, explosion-proof, food-grade, reinforced tear resistance, double-layer leak protection
- 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.
Similar Products
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Xinxiang Huayuan Paper Plastic Bag Co., Ltd.
Location
No.023, Xinchang North Line, Xinxiang Economic and Technological Development Zone, Xinxiang City, Henan Province，China
Contact Person
Huayuan