Single-sided Grey-back White Board

Single-sided Grey-back White Board is a type of single-side coated paperboard. The front features a smooth, white coated surface suitable for color printing, while the back consists of a rougher grey recycled pulp layer that is not suitable for printing. Manufactured through a multi-layer process (top, core, and bottom layers) followed by single-side coating and calendering, it offers moderate stiffness and is compatible with printing, die-cutting, creasing, and folding.

Key Applications

Outer packaging for color boxes: boxes for personal care products, shoes, snacks, and small appliances

Clothing tags, product labels, paper shopping bags, and gift box inserts

POP display cards, price tags, photo frame backings, and simple brochure covers

Craft models, partition inserts, and laminating liners for corrugated boxes

Compatible with post-processing techniques such as printing, hot stamping, UV coating, and embossing; frequently used in conjunction with corrugated board and cartons for complete packaging solutions

Important Note: Only the front side offers excellent printing results; the grey back has poor ink absorption, so double-sided printing is not recommended.

Key Selling Points

Excellent printability with stable color reproduction

The white coated surface is smooth and fine with uniform ink absorption; it supports four-color offset printing, UV printing, hot stamping, and embossing, delivering crisp halftone dots with minimal linting or dusting.

Outstanding cost-performance ratio for packaging cost control

Lower procurement costs compared to white-back white board or all-wood-pulp white cardstock; ideal for single-side display packaging where double-sided white paper is unnecessary, effectively reducing material expenses.

Moderate stiffness and good processing performance

Stable folding endurance; ensures smooth die-cutting and clear creasing without edge cracking during folding, making it suitable for fully automated color box production lines.

Wide range of specifications to suit diverse processes

Available in various grammages and in both sheet and roll formats; supports subsequent lamination and varnishing.

Eco-friendly, recyclable, and reliable raw materials

The board is recyclable; Grade A stock contains minimal impurities and meets basic environmental standards for both domestic and export packaging. Convenient storage and transport

Sheets stack neatly; rolls facilitate continuous machine feeding; uniform thickness ensures dimensional stability in mass production.

Technical Specifications

1. Layer Structure

Top Layer: Bleached wood pulp coating (white printing surface)

Core Layer: Mixed fiber support layer

Bottom Layer: Recycled waste paper pulp (grey back)

2. Common Grammage (Basis Weight g/m²)

200g, 230g, 250g, 270g, 300g, 350g, 400g; special grammages available upon request.

3. Standard Sheet Sizes

Standard Size: 787 × 1092 mm

Large Size: 889 × 1194 mm; custom slitting available; large rolls also supplied.

4. Grade Classification

Grade A (High-end color boxes, hot-stamped/UV-coated packaging)

Grade B (General outer packaging, hang tags, shopping bags)

Grade C (Simple carton liners, standard paper boxes, backing boards)

5. Key Physical Indicators

Smoothness: High surface smoothness ensures excellent print quality.

Folding Endurance: Stable folding strength in both cross and machine directions; resists cracking during folding.

Moisture Control: Standardized moisture levels minimize post-printing expansion, contraction, and warping.

Opacity: High opacity prevents ink show-through.

6. Shipping Format

Sheets packed on wooden pallets; rolls wound on paper cores with protective moisture-proof wrapping.

Applications of Single-sided Grey-back White Board

1. Consumer Goods Packaging

Suitable Products: Shoe boxes, personal care/household chemical packaging, snack gift boxes, outer color boxes for small appliances.

Case Study: An e-commerce personal care brand uses 250g grey-back white board in large volumes for outer packaging. The board features exquisite color printing on the front, effectively controls packaging costs, and runs smoothly on automated production lines. 2. Apparel and Creative Merchandise Industries

Applicable products: Clothing hangtags, shopping bags, simple creative cards, gift box liners/backing boards.

Real-world application: Apparel companies use 230gsm grey-back white board for hangtags, printing brand information on one side; it offers better cost-effectiveness than solid bleached board.

3. Advertising Display and Printing Industries

Applicable products: POP standees, price tags, poster backing boards, simple promotional cards.

Real-world application: Mass production of promotional display cards for supermarkets; the board is flat and rigid, allowing for efficient cutting and shaping.

4. Food and Bakery Packaging

Applicable products: Pastry outer packaging, snack food cartons.

Real-world application: Bakery manufacturers use Grade A low-fluorescence grey-back white board combined with lamination to meet food packaging requirements.

5. Industrial Applications and Box Lamination

Applicable scenarios: Facing material for corrugated boxes, partition liners, handmade mock-ups, product separator pads.

Real-world application: Packaging plants use it as the facing sheet for laminated corrugated color boxes; it offers excellent rigidity and ensures neat, precise shaping.

Certifications and Quality Assurance

1. Qualifications and Documentation

Complies with the national standard GB/T 18739-2022 "White Board Paper."

Material composition and heavy metal test reports available upon request.

Support provided for export packaging documentation and tender/bidding materials.

2. Four-Stage Factory Quality Control System

Raw material inspection: Spot checks on pulp ratios, base paper whiteness, and bursting strength.

Real-time monitoring of papermaking and coating: Control of coating uniformity and moisture content.

Finished product sampling: Testing for smoothness, folding endurance, dusting/linting, and dimensional stability.

Full visual inspection during slitting: Rejection of sheets with warping, damage, dirt spots, or uneven thickness; finished product pass rate ≥ 99.6%.

Customer Trust and Brand Endorsement

1. Project Support and Endorsement

Our single-sided grey-back white board is a long-term supplier for major color printing and packaging plants; finished products are exported to Southeast Asia and Europe, meeting the needs for both domestic and international color box packaging. 2. Client Base

We have long-standing partnerships with color-printed box factories, apparel supply chain companies, commercial bakeries, and e-commerce packaging firms. Many clients purchase complete sets that include corrugated board and paper dividers. (Space available to display logos of partner clients)

3. Factory Capabilities

We maintain stable, long-term access to upstream paper mills and keep a consistent inventory across various grades and grammages. We supply both sheets and rolls and handle orders of all sizes. (Images: Raw material warehouse, stacks of finished paperboard)

4. Genuine Customer Feedback

① "The Grade A white-top grey-back board doesn't shed dust during printing, and the hot-stamping quality is consistent; it offers excellent value for shoeboxes and personal care packaging." --- Purchasing Manager, Color Printing & Packaging Plant

② "Precise cutting dimensions and flat board surfaces ensure stable registration during machine printing; paper curling issues are rare." --- Printing & Processing Plant

③ "We use it for clothing tags and shopping bags; the single-sided printing quality is excellent, and it offers significant packaging cost savings compared to white cardstock." --- Apparel Supply Chain Vendor

Sample Support, Quality Assurance, and Return/Exchange Policies

1. Sample & Testing Support

Samples available for on-site testing of printing results, stiffness, and die-cutting performance.

Physical and chemical test reports available for foreign trade customs clearance and project bidding.

2. Quality Assurance

6-month warranty under proper storage conditions (dry and ventilated). Free replacement provided for defects caused by raw materials or processing, such as coating issues, widespread spots, or thickness deviations. Warranty does not cover damage from moisture during storage or improper downstream processing by the client.

3. Return & Exchange Rules

Exchanges negotiable if samples are unsatisfactory.

Replacement or return negotiable for mass-production orders with processing or visual quality defects.

Assistance with specification exchanges available if the wrong grammage/grade was selected, provided the goods are intact, unused, and suitable for resale.

7-day no-questions-asked return/exchange for intact, un-unpacked stock items (excluding custom-cut/special-size products).

Real-World Usage Experience

Single-sided grey-back white board is a mainstream, cost-effective material for single-sided printed outer packaging. Compared to white-back duplex board (white-on-white): Lower procurement cost; suitable for boxes where the interior appearance is not a priority.

Compared to white cardstock: Significant price advantage at the same basis weight; helps effectively control budgets for large-volume outer packaging.

Compared to standard grey-back duplex board: Features a white-coated printing surface; no need for lamination or mounting; can be printed and formed directly.

Widely used for producing various color boxes, hang tags, and shopping bags; often used in conjunction with corrugated board for laminated boxes; ideal for printing and packaging companies seeking high-quality print results while controlling costs.

FAQ

Q1: Can the back of grey-back duplex board be printed with graphics or text?

A: Not recommended. The back layer consists of grey recycled pulp; the surface is rough with uneven ink absorption, resulting in dull colors and a high risk of printing defects (such as ink smudging or plate clogging). Only the front side is suitable for printing.

Q2: How do I choose between Grade A, B, and C grey-back duplex board?

A: UV coating, hot stamping, high-end color boxes → Grade A; standard four-color boxes, hang tags → Grade B; inner liners/backing boards, simple boxes → Grade C.

Q3: Why does the paper tend to warp during storage?

A: Significant fluctuations in ambient humidity; it is recommended to keep the warehouse ventilated and dry, and to stack the paper flat to prevent moisture absorption on one side.

Q4: Can grey-back duplex board be laminated?

A: Yes; the front side supports matte or glossy lamination to enhance wear resistance and moisture protection.

Q5: How do I choose between sheet-fed paper and paper rolls?

A: Sheet-fed offset presses → Sheet-fed paper; high-speed rotary printing, continuous lamination/box-making lines → Paper rolls.