Natural Brown Kraft Paper Bags 90gsm – 120gsm Custom Kraft Bags

Double-Layer Kraft Paper Bag 90-120gsm with Outer Self-Seal – Heavy-Duty for E-Commerce, Hardware & Bulk Items – Recycled, Biodegradable

Description:
Engineered for strength, this double-layer kraft paper bag bonds two sheets of 45-60gsm kraft paper to achieve a total weight of 90-120gsm. The outer flap features a wide self-adhesive seal for quick, secure closure without tape. Ideal for shipping heavy or sharp-edged items such as hardware, auto parts, books, and bulk dry goods. The double-layer construction provides excellent puncture resistance and tear strength, outperforming single-layer bags of similar weight. Made from recycled kraft paper, it is fully recyclable and biodegradable. The natural brown color hides scuffs and dirt, making it perfect for logistics and industrial use. Available in sizes from 10×12cm up to 50×60cm (plus 5cm flap). Custom printing of handling labels or logos is supported.

Product Specifications:

Company Introduction:
HUANCHEER specializes in double-layer kraft bags for e-commerce and industrial shipping. Our unique lamination process creates a strong bond between layers without plastic adhesives, keeping the bag 100% paper-based. The outer self-seal strip is reinforced to handle the stress of heavy contents. We test each batch for burst strength (Mullen) and edge tear resistance. With weekly production exceeding 200,000 double-layer bags, we supply fulfillment centers, auto parts retailers, and hardware stores globally. Custom sizes, reinforced bottom gussets, and multi-color printing are available.

Key Features:
• Double-layer construction: 90-120gsm total – high tear and puncture resistance
• Closure: Outer flap with peel-and-seal adhesive strip – strong, tamper-evident
• Material: Recycled kraft paper – natural brown, eco-friendly
• Size range: 10×12cm to 50×60cm (+5cm flap) – customizable
• Weight capacity: Up to 5-8kg depending on size
• Ideal for heavy e-commerce, hardware, automotive, industrial parts
• Custom printing: Up to 4 colors for logos or handling instructions
• 100% recyclable and biodegradable – plastic-free

Business Trade Terms:
• Price: RMB 0.35–0.80 per bag (depends on size and quantity)
• MOQ: 5,000 pieces
• Payment: T/T, L/C, or OA for approved accounts
• Supply ability: 200,000+ pieces per week
• Volume discount: 10-15% for orders above 100,000
• Free sample (shipping fee applies)

Shipping Information:
• Packing: Compressed in cartons or bales (500–1,500 bags per carton)
• Delivery: 5-8 work days (add 3-5 days for printing)
• Ports: Shenzhen, Ningbo
• FOB, CIF, EXW, DDP terms available
• Sea freight recommended for large volumes

FAQ:
Q1: How strong is the double-layer compared to single-layer?
A: Double-layer offers approximately 80% higher burst strength and 100% better puncture resistance than a single layer of the same total weight.
Q2: Can this bag be used for sharp items like screws or metal brackets?
A: Yes, the double-layer construction resists punctures. For extremely sharp edges, we can add a reinforced patch.
Q3: Is the outer seal strong enough for heavy items?
A: Yes, the adhesive strip is designed for loads up to 8kg. For extra security, we recommend reinforcing with tape for heavier items.
Q4: Can I get a white version of this double-layer bag?
A: Yes, white double-layer is available as Series 5.
Q5: What is the maximum custom size?
A: 50×60cm is the standard maximum, but we can produce up to 70×90cm with special order (MOQ 10,000).
Q6: Is the bag waterproof?
A: Kraft paper is moisture-resistant but not waterproof. For wet environments, we offer a water-resistant coating.

Tags:
double-layer kraft bag, heavy-duty paper bag, outer self-seal, 90-120gsm, e-commerce shipping bag, hardware packaging, recycled kraft, HUANCHEER