Jun022026

Double-Sided Kraft Laminated Greyboard

What Is Double Kraft Lined Paperboard? Structure, Benefits and Applications

by HONGTUSCENERY Packaging Experts min read 0 comments

Double Kraft Lined Paperboard, also called Kraft Paperboard, is a paperboard made by laminating kraft paper onto a paperboard core.. It is not simply thicker kraft paper. Instead, the core creates a board structure that provides greater thickness and stiffness.

In actual sourcing, you may see terms such as Kraft Paperboard, Kraft Board, Kraft Laminated Greyboard, and Double Side Kraft Board. Different suppliers may use different terminology, so the actual structure and specifications should also be confirmed.

The main specifications to confirm include: raw material, core material, single-side or double-side, thickness, GSM, sheet size, and application.

1. What Is Kraft Paperboard?

Simply put, kraft paperboard is a board material made by laminating kraft paper onto a paperboard core.

It can be simply understood as:

Ordinary kraft paper: Paper
Single-side kraft paperboard: Kraft Paper / Core
Double-side kraft paperboard: Kraft Paper / Core / Kraft Paper

The kraft paper mainly provides the surface color, texture, and paper feel, while the core helps provide the required thickness and structural support.

Therefore, a term such as Kraft Board does not necessarily define the exact structure. It is better to confirm the structure with the supplier.

2. What Is Kraft Paper Made From?

Kraft paper and kraft paperboard materials

Kraft paper itself is made from pulp. Depending on the product requirements, it may contain:

Virgin wood pulp
Recycled pulp
A combination of virgin and recycled pulp

Virgin fibers can be used to achieve the required strength, surface quality, and consistency, while recycled fibers come from recovered paper.

If the fiber composition is important to the final application, it should be confirmed through the supplier’s specifications, TDS, and samples.

3. What Is the Structure of Kraft Paperboard?

Taking common Kraft Laminated Greyboard as an example:

Single-side:

Kraft Paper / Greyboard

Double-side:

Kraft Paper / Greyboard / Kraft Paper

Greyboard is one common core material, but other paperboard materials can also be used as the core depending on the application.

These terms can generally be understood as:

Kraft Laminated Greyboard: kraft paper laminated to greyboard
Kraft Paperboard / Kraft Board: broader product terms
Double Side Kraft Board: usually emphasizes kraft paper on both sides

4. What Is the Difference Between Single-Side and Double-Side Kraft Paperboard?

If the product only needs the color and texture of kraft paper on one side, a single-side structure can be used:

Kraft Paper / Greyboard

If both the front and back sides need a kraft paper surface, a double-side structure can be used:

Kraft Paper / Greyboard / Kraft Paper

The main differences between single-side and double-side structures are moisture resistance and stiffness.

The additional kraft paper layer on the second side changes the overall board structure. However, the actual moisture resistance and stiffness also depend on factors such as total thickness, core material, kraft paper specifications, adhesive system, and surface treatment.

5. What Are the Main Characteristics of Kraft Paperboard?

Kraft paperboard mainly combines the surface appearance of kraft paper with the structural support of paperboard.

Natural Surface Appearance

Kraft paper usually has a natural brown color, visible texture, and a paper-like tactile feel, making it suitable for products that require a natural or simple appearance.

Thickness and Stiffness

The core gives the material greater thickness and stiffness than ordinary kraft paper, making it suitable for paper products that need to maintain their shape or require structural support during processing and use.

Moisture Resistance

It generally provides better moisture resistance than ordinary paperboard.

If the final product will be exposed to humid or wet environments, the required moisture resistance should be specified when selecting the material. Depending on the application, suitable paper, adhesive, coating, or other surface treatment may be required.

6. What Is Kraft Paperboard Used For?

Kraft paperboard is suitable for products that need a certain level of thickness and stiffness while retaining the appearance of kraft paper.

Paper Hangers

Paper hangers require a certain level of stiffness and load-bearing capability, while the surface can also be used for brand printing.

If a natural paper appearance is required, kraft paper can be used as the surface layer. The exact specification depends on the product structure. For example, some paper hangers may use board around 2.5–3.0 mm, but this is not a fixed standard.

Folders and File Covers

These products require structural support while also benefiting from the natural paper appearance of the kraft surface.

Hardcover Notebook Covers

Kraft paperboard can be used as a hardcover substrate and then printed or further processed according to the product requirements.

Picture Frame Backing Boards

Picture frame backing boards require a certain level of thickness and support and can also use a kraft paper surface depending on the design.

Kraft paperboard can also be used for other paper products, packaging components, and display materials.

7. What Thicknesses Are Available for Kraft Paperboard?

Kraft paperboard does not have one fixed standard thickness. The required thickness usually depends on the final application.

For example:

1.0–1.5 mm: lighter paper products, covers, and files
2.0–2.5 mm: paper products requiring higher stiffness, including some paper hangers
2.5–3.0 mm: hangers, hardcovers, and other products requiring greater structural support

These are common examples, not fixed standards.

Conclusion

Kraft Paperboard, Kraft Board, Kraft Laminated Greyboard, and Double Side Kraft Board may be different terms you encounter during sourcing.

But the product name alone does not determine whether the material is suitable for your product.

What really matters is:

kraft paper raw material + core structure + single/double side + thickness + GSM + sheet size + final application.

When sourcing kraft paperboard, it is better to define the application and structural requirements first, and then determine the appropriate material specifications.

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HONGTUSCENERY Packaging Experts

HONGTUSCENERY is a professional manufacturer of composite paperboard,
providing sustainable and customized packaging solutions for global brands.
With nearly 20 years of industry experience, we focus on material performance,
structural strength, and green supply chain development.