100% Recyclable Waterproof Moisture-Proof Closed Valve Kraft Paper Valve Bag for Industrial Packaging
Price:
Negotiable
MOQ:
10000
Delivery Time:
30days
Brand:
HUAYUAN
Product Description
100% Recyclable Brown Kraft Paper Bag with Closed Valve - Environmentally Friendly Packaging
Kraft paper valve bags are premium packaging products specifically designed for industrial powders and granular materials. These bags are constructed using multiple layers of fully wood-pulp kraft paper combined with a flat-bottom valve structure, making them compatible with fully automatic filling production lines.
The bags offer several advantages including automatic sealing, prevention of powder leakage, high strength, stackability, and resistance to moisture and dust. These features ensure the protection and integrity of the contents during handling and storage.
Currently, kraft paper valve bags are the mainstream 25kg standard packaging option in industries such as chemical, construction materials, starch, and powder materials. Their design supports high-speed automated production processes, stable loading and stacking during transportation, and low risk of bag rupture.
Due to these benefits, kraft paper valve bags are widely adopted for standardized packaging in factories both domestically and internationally, facilitating reliable export shipments.
Key Features
- Automatic Filling and Leak-Proof Sealing: Valve mouth self-sealing design automatically locks after filling without seams or ties, preventing dust dispersion and powder leakage
- Multi-Layer High Strength and Durability: 2 to 4 layers of high-strength kraft paper composite with uniform tensile strength, excellent resistance to impact and tearing
- Moisture and Dust Resistance: Optional PE inner film and coated moisture-proof layer effectively isolates water vapor and prevents material clumping
- Square Bottom and Stable Stacking: Square-bottom shaping maintains neat, upright form for orderly stacking and improved warehouse space utilization
- Environmentally Friendly: Made from pure wood pulp kraft paper, recyclable and biodegradable, meeting regulatory standards
- Clear Printing and Brand Presence: Supports multi-color, high-definition printing with logos and bilingual information
Technical Specifications
| Material | 100% virgin wood pulp stretch kraft paper (70-100 gsm) |
| Layers | 2-layer, 3-layer, and 4-layer constructions |
| Load Capacity | 10kg, 20kg, 25kg, 40kg, and 50kg options |
| Bag Structure | Square bottom valve bags, outer valve, and inner valve options |
| Moisture Protection | No film, single PE film, and double-layer moisture-proof coating |
| Printing | 1 to 6 colors, front and back sides, Chinese and English languages |
| Size Tolerance | Width: ±2mm, Length: ±3mm |
| Paper Quality | 100% virgin wood pulp, smooth, tough surface with stable tensile strength |
| Bonding Process | Fully automated high-temperature bonding for firm sealing |
Industry Applications
- Food Powder Industry: Potato starch, sweet potato starch, corn starch, flour, food additives, protein powder, glucose powder
- Chemical Powder Industry: Resin powder, rubber and plastic additives, dry powder coatings, chemical powders, fillers, pigment powders, desulfurization agents
- Building Material Industry: Putty powder, gypsum powder, cement mortar, tile adhesive, bonding agents, waterproof powders, refractory materials, insulation powders
- Agriculture and Feed Industry: Feed additives, organic fertilizer powders, compound fertilizers, pesticide powders
- Export and International Trade: Long-distance transport via sea and land with excellent moisture protection, compression resistance, and impact durability
Customization Options
- Size Customization: Tailored width, height, and valve dimensions based on filling equipment and load capacity
- Layer Customization: Options from 2 to 4 layers of paper, with or without inner lining
- Moisture Protection: Standard, moisture-resistant, and high moisture-proof specialized ocean freight versions
- Printing Customization: Corporate logos, company names, addresses, contact numbers, barcodes, bilingual instruction manuals
- Valve Options: Internal valves, external valves, extended valves, and valves for high-speed filling
- Order Flexibility: Sample making, small batch trials, and large volume production with ready stock availability
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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