Double-sided White Board

Double-sided White Board features white coated surfaces on both sides with a fibrous core; it is manufactured through a process of double-sided coating and multi-stage calendering. Both surfaces are smooth and bright white, offering excellent printability on both sides---distinguishing it from single-sided white-top grey-back board (which is white on one side and grey on the other). It boasts superior stiffness and folding endurance, making it compatible with a full range of post-processing techniques, including offset printing, UV printing, hot stamping, embossing/debossing, die-cutting, and folding.

Key Applications

Mid-to-high-end color box packaging: cosmetics, pharmaceuticals, gifts, food, and consumer electronics.

Double-sided printed shopping bags, hardcover album covers, greeting cards, postcards, and premium hang tags.

POP displays, blister cards, backing inserts, and handmade models.

Laminating liners for corrugated color boxes; packaging solutions requiring high-quality printing on both the interior and exterior surfaces.

Often paired with various corrugated boards, backing boards, and packaging consumables to form comprehensive packaging solutions.

Key Selling Points

High-quality printing on both sides; bright, attractive white surfaces. Coated on both sides for uniform ink absorption and crisp dot definition; allows for printing graphics on both the interior and exterior of boxes or bags, with no exposed grey backing.

Comprehensive printability and process compatibility. Supports 4-color offset printing, UV printing, hot stamping (gold/silver), embossing, and lamination; resistant to linting and dusting, with stable color reproduction.

Balanced stiffness with stable die-cutting and folding performance. Excellent folding endurance and clear creasing lines; resists cracking during folding on automated production lines, resulting in neat, square, and attractive finished shapes.

Smooth surface effectively minimizes paper warping. Balanced stress from double-sided coating prevents the unidirectional curling often seen in single-sided grey-back boards after printing and processing, ensuring higher registration accuracy.

Superior quality compared to grey-back board; better cost-performance ratio than 100% wood pulp white cardstock. Balances visual appeal with procurement costs---ideal for mid-range premium packaging that requires a balance between aesthetics and budget. Extensive specification options: Available in both sheets and rolls. Stock maintained across various grammages; custom slitting available; compatible with sheet-fed presses and rotary carton-forming lines.

Recyclable and eco-compliant: Raw materials meet general packaging standards; test documentation available; suitable for both domestic and export packaging requirements.

Technical Specifications

1. Structural Composition

Front: White coated printing layer | Core: Mixed-fiber support layer | Back: White coated base layer (Key feature: Double-sided white)

2. Common Grammages (g/m²)

200g, 230g, 250g, 270g, 300g, 350g, 400g, 450g

3. Standard Sheet Sizes

Standard (Zhengdu): 787×1092mm | Large (Dadu): 889×1194mm | Custom slitting available; large-format rolls also supplied.

4. Product Grades

Grade A (Premium color boxes, hot stamping/UV applications, food outer packaging) | Grade B (General double-sided color boxes, shopping bags, hang tags)

5. Key Physical Properties

High smoothness on both sides; uniform coating

Controlled moisture content to minimize dimensional instability during printing

High opacity; excellent ink holdout (prevents show-through)

Stable folding endurance in both machine and cross directions

6. Shipping Format

Sheets: Moisture-proof packaging on wooden pallets | Rolls: Reinforced cores and moisture-proof outer wrapping.

Applications & Real-World Use Cases

1. Beauty & Gift Packaging

Suitable products: Cosmetic color boxes, skincare gift boxes, jewelry boxes, gift set boxes.

Case study: A beauty brand required double-sided printing for its packaging. By using double-sided white board, the interior of the box remained clean and attractive upon opening, elevating the product's premium feel.

2. Food & Pharmaceutical Packaging

Suitable products: Snack food cartons, pharmaceutical outer boxes, health supplement gift boxes.

Case study: A food company utilized Grade A white-back board with brand information printed on both the interior and exterior; the clean, white finish (free of grey backing) met retail display requirements perfectly. 3. Cultural & Creative and Printed Paper Products Industries

Applicable Products: High-end garment tags, greeting cards, postcards, brochure covers, shopping bags.

Real-world Application: A cultural & creative manufacturer produced double-sided printed shopping bags; the patterns on both sides were crisp and clear, with the grey back-side effectively prevented from showing through to the surface and compromising the visual appeal.

4. Premium Outer Packaging for Electronics and Light Industrial Goods

Applicable Products: Small home appliances, digital accessories, premium stationery color boxes.

Real-world Application: Electronic product color boxes required warning labels and graphics on both the interior and exterior; double-sided white board was the perfect fit for this double-sided printing process.

5. Blister Packaging and Advertising Display Industries

Applicable Products: Blister backing cards, supermarket POP standees, price display cards.

Real-world Application: Used in bulk by blister packaging factories; the board features a durable surface coating that resists blistering or delamination during the blister heat-sealing process.

Certifications and Quality Assurance

1. Documentation Support

Complies with national industry standards for white board paper.

Physical/chemical property test reports and heavy metal test reports available.

Documentation suitable for foreign trade customs clearance and project tender applications.

2. Four-Stage Factory Quality Control System

Raw material spot checks: Pulp ratio, whiteness, bursting strength, and coating quality.

Real-time monitoring of coating and calendering processes to ensure uniform double-sided coating.

Finished product sampling tests: Smoothness, folding endurance, dusting resistance, and dimensional stability.

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

Customer Trust and Brand Endorsement

1. Project Endorsement

Our double-sided white board is supplied to major color printing and packaging plants; finished products are exported to Southeast Asia and Europe, and widely used for mid-to-high-end premium gift box packaging.

2. Customer Base

We serve cosmetics packaging plants, food printing enterprises, cultural & creative gift supply chains, and electronics accessory packaging manufacturers; many clients purchase our board in combination with corrugated cardboard for complete packaging solutions.

3. Supply Capability

Stable access to upstream paper mill resources; large inventories maintained across various grades and basis weights (in both sheets and rolls); capable of handling orders of all sizes. 4. Real Customer Testimonials

① "The double sided white board delivers balanced printing results on both sides; when used for cosmetic cartons, there is no need for additional inner lining, resulting in a premium overall finish." --- Color Printing & Packaging Factory

② "The board is flat with minimal curling during machine processing, and the hot-stamping performance is stable. Compared to grey-back board, it is ideal for packaging that requires dual-sided display." --- Printing & Processing Plant

③ "Used for double-sided printed shopping bags; the colors and patterns match perfectly on both sides, earning high customer satisfaction." --- Gift Packaging Vendor

Sample Support, Quality Assurance, and Return/Exchange Policy

1. Sample and Testing Support

Samples of the double-sided white board are available for testing print quality, stiffness, and die-cutting performance.

Physical and chemical test reports can be provided for export customs clearance and project bidding purposes.

2. Quality Assurance

A 6-month warranty applies under proper storage conditions (dry and well-ventilated). Replacements will be arranged for issues caused by raw materials or manufacturing processes, such as coating defects, widespread spots, or thickness deviations. Damage due to moisture during storage or improper downstream processing by the customer is not covered under the warranty. 3. Return and Exchange Policy

Exchanges can be negotiated if the customer is dissatisfied with the samples.

In the event of manufacturing or visual quality defects in mass-production orders, replacement or return/exchange can be negotiated.

If a customer selects the wrong basis weight or grade, we can assist in exchanging specifications provided the goods remain intact, have not been loaded onto machinery, and are suitable for resale.

Stock items on intact, unopened pallets are eligible for a 7-day no-reason return or exchange; however, products custom-slit to specific dimensions cannot be returned or exchanged.

Customization and Supply Process

1. Comprehensive Communication Process

Requirement discussion (basis weight; standard sheet sizes/custom sizes; sheets vs. rolls; grade; printing process) → Solution recommendation → Sample dispatch (upon request) → Order confirmation → Production scheduling & slitting → Visual inspection → Moisture-proof packaging & shipping → After-sales follow-up

2. Basic Production Process

Pulp preparation → Multi-layer forming → Double-sided coating → Multi-roll calendering → Drying & conditioning → Sheet cutting / Roll rewinding → Visual spot-check → Moisture-proof packaging & warehousing

FAQ

Q1: How do I distinguish between and choose between double sided white board and white paperboard (SBS/FBB)?

A: Double-sided white board features coating on both sides and offers high cost-performance, making it suitable for mid-range color boxes. White paperboard is typically made from 100% wood pulp, offering superior stiffness and whiteness; it is commonly used for high-end rigid gift boxes and premium hang tags.

Q2: What key parameters need to be confirmed when purchasing double sided white board?

A: Basis weight; dimensions (standard sheet sizes or custom sizes); format (sheets vs. rolls); grade (A or B); suitability for blister packaging; and requirements for special finishes like hot stamping or UV coating.

Q3: Can double sided white board be used for direct food contact?

A: It is recommended only for outer food packaging; for inner packaging in direct contact with food, we suggest using food-grade paperboard.

Q4: Is there tiered pricing for bulk purchases? Can prices be negotiated for long-term partnerships?

A: Unit prices decrease as purchase volume increases (tiered pricing applies). Customers with stable, long-term repeat orders can negotiate exclusive pricing and receive priority stock allocation.

Q5: Will the base color show through after printing on double sided white board? A: Standard-grade paperboard meets opacity requirements; for designs featuring large areas of solid dark-colored printing, it is recommended to prioritize the use of paperboard with a basis weight of 300 gsm or higher.