230gsm 250gsm Grey Backed Coated Duplex Board Professional Shoe Box Packaging Paperboard
230gsm & 250gsm Grey Backed Coated Duplex Board is a single-side clay coated (C1S) packaging paperboard, specially customized for shoe box mass production. Adopting eco-friendly recycled pulp material, it features a high-brightness white coated front and stable grey back base. With uniform coating, excellent stiffness, dust-free surface and superior fold resistance, this duplex board supports high-speed machine printing and die-cutting processing. It is a cost-effective, high-quality core material widely used in shoe boxes, gift packaging, cosmetic outer boxes and toy packaging industries.
Complete Technical Specifications
| Specification Item | Detailed Parameters |
|---|
| Product Name | Grey Backed Clay Coated Duplex Board for Shoe Box Manufacturing |
| Base Weight (GSM) | 200/230/250/300/350/400/450gsm (Hot sale: 230gsm, 250gsm) |
| Core Material | 100% Eco-friendly Recycled Pulp, recyclable & eco-friendly |
| Surface Type | Single side white clay coated, grey back uncoated |
| Standard Sheet Sizes | 79×109cm, 24×34inch, 22×26inch, 28×40inch, 50×70cm (custom sizes available) |
| Reel Width | 700/900/1020/1060/1100/1200/1270mm (customizable) |
| Core Physical Performance | Brightness ≥80%, Smoothness ≥70s, Moisture Content 6%-8%, Excellent folding & tensile strength |
| Certifications | ISO, SGS, FSC Certified |
| Processing Compatibility | Offset printing, screen printing, hot stamping, lamination, die-cutting, creasing |
| Shipping Terms | Courier / Air freight / Sea freight (LCL/FCL full container) |
| Packaging Standard | Waterproof film wrapping + corner protection + standard export pallet packing |
Core Product Features
- High Stiffness & Stable Structure: Optimized multi-layer pulp structure delivers outstanding vertical and horizontal stiffness, effectively supporting high-speed die-cutting, folding and laminating, no deformation or collapse after box forming, perfect for standardized shoe box production.
- Premium Printing Performance: Dust-free, ultra-flat coated surface with uniform ink absorption, avoiding ink peeling, blurring and color difference. It supports full-page offset printing and fine pattern printing with clear and vivid color presentation.
- Moisture-Proof & Durable: Strictly controlled moisture content (6%-8%) with professional moisture-proof coating process, effectively preventing paper warping, brittle cracking and mildew during storage and transportation, adapting to various climate environments.
- Strict Quality Certification: Complies with international ISO, SGS and FSC environmental standards, stable batch consistency, no quality fluctuation, meeting global packaging environmental protection requirements.
- Cost-Effective Customization: Multiple gsm and size options are available. The grey back design balances structural strength and production cost, ideal for mass commercial packaging production.
Wide Application Scenarios
This grey back duplex board is tailored for commercial printing and packaging, widely applicable to various medium and high-grade paper box products:
- Footwear Packaging: Various men's, women's and children's shoe boxes, sneaker packaging boxes (core mainstream application)
- Daily Gift Packaging: Wine boxes, cosmetic outer packaging boxes, toy packaging boxes, gift paper boxes
- Special Industry Packaging: Outer packaging, match boxes, daily commodity packaging boxes
- Printing & Decoration: High-definition printed packaging covers, product outer cartons, customized printed paper crafts
Company Introduction
We are a professional integrated paper manufacturing and export enterprise focusing on packaging paper and printing paper materials, with more than 10 years of production and foreign trade export experience. The factory is equipped with advanced automated paper making, coating and slitting production lines, specializing in the R&D, production and customization of grey back duplex board, black kraft board, white cardboard and various packaging special paper.
We strictly implement international production standards, with complete SGS, ISO, FSC qualification certificates and stable batch quality control system. Adhering to the principle of "quality first, customer priority", we support OEM & ODM customized services including different gsm, size, surface processing and special packaging. Our products are exported to Europe, America, Southeast Asia, the Middle East and other global markets, providing one-stop high-quality paper material solutions for packaging factories, printing factories and brand manufacturers worldwide.
With sufficient factory inventory, fast production cycle and flexible shipping solutions, we support small-batch trial orders and large-batch container orders, ensuring stable supply and timely delivery for global customers.
Frequently Asked Questions
Q1: What is the advantage of grey back duplex board compared with full white duplex board?
A: The grey back adopts recycled pulp structure, which is more cost-effective while maintaining high surface printing quality and structural stiffness. It is more suitable for outer packaging products such as shoe boxes that do not require double-sided white appearance, with higher cost performance for mass production.
Q2: Is this paperboard suitable for high-speed machine automatic processing?
A: Yes. Our duplex board has a dust-free flat surface, uniform thickness and stable stiffness, no curling or cracking during high-speed die-cutting, folding and printing, fully adapting to industrial automatic assembly line production.
Q3: Can you provide customized sizes and special grammage?
A: Sure. We support full customization of non-standard sheet sizes and reel widths, and provide special gsm products from 200gsm to 450gsm. Custom orders can be produced according to customer's drawings and requirements.
Q4: What certifications can you provide for customs clearance and quality inspection?
A: We can provide official ISO quality system certification, SGS physical and chemical test report, FSC environmental protection certification and other full-set documents to support global customs clearance and customer quality audit.
Q5: What are your MOQ and delivery time?
A: Conventional standard sizes support small-batch trial orders; customized sizes require a certain batch quantity. The conventional delivery cycle is 7-15 working days, and urgent orders can be prioritized for production.
Q6: Is the paperboard moisture-proof and suitable for long-distance sea transportation?
A: Yes. The product has stable moisture-proof performance with controlled moisture content. Equipped with professional waterproof and shockproof export packaging, it can adapt to long-distance sea transportation and high humidity storage environment without deformation or mildew.
Product Tags
Coated Duplex Board Grey Back, Clay Coated Paperboard, White Coated Duplex Paper, Shoe Box Paper Board, Recycled Duplex Board, Printing Packaging Paperboard
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