Before comparing kraft paper, white card, SBS, and coated paper, it is important to understand what these terms describe. Packaging terminology varies between suppliers and markets, and material type, board grade, and surface treatment are not always the same thing.
Clarifying these terms first makes the comparison more accurate and helps buyers avoid choosing a material based on its name alone.
Kraft Paper and Kraft Paperboard
Kraft paper is made using the kraft pulping process and is available in both lighter paper and heavier paperboard grades.
Brown or natural kraft retains its characteristic brown fiber appearance and typically has a more natural, tactile surface. White kraft provides a lighter or white appearance while still being based on kraft material.
The brown appearance of natural kraft should not automatically be interpreted as proof that it is more sustainable. Recycled content, fiber sourcing, coatings, and the construction of the finished package also matter.
White Card, SBS and C1S
White card, SBS, and C1S are sometimes used loosely in packaging discussions, but they are not necessarily interchangeable.
White card is often used as a broad commercial term for white paperboard. SBS (Solid Bleached Sulfate) is a more specific paperboard grade made from bleached virgin fiber. C1S (coated one side) describes a board or paper with a coating applied to one side rather than identifying the complete material construction.
Terminology can vary between suppliers and regions, so buyers should not rely on a trade name alone.
Buyer Note: Ask for the actual board grade and technical specifications rather than assuming that materials with similar names are equivalent.
What "Coated Paper" Actually Describes
"Coated paper" is not always a separate material category in the same sense as kraft paper or a specific paperboard grade. A coating is a surface treatment applied to an underlying paper or paperboard substrate.
This means the substrate and coating should be considered separately. A stock may be coated on one side (C1S) or both sides (C2S), and the complete specification may also include its board grade, GSM, thickness, and other production requirements.
Terminology Note:
Material or board category → Surface treatment → Final specification
For packaging buyers, the key point is simple: kraft, SBS, white card, and coated paper do not always describe equivalent levels of material classification. Understanding that distinction makes the following comparison more useful.
Quick Comparison: Kraft vs White Card vs Coated Paper
Here is a quick way to distinguish the three options before looking at the technical details.
Kraft Paper
Natural or tactile appearance, with a more visible fiber character. The substrate color can influence printed colors, and stiffness varies by grade and construction. Commonly used for paper bags, sleeves, and natural-look packaging.
White Card / SBS
Clean, bright, and relatively uniform in appearance. Its light surface provides a strong base for detailed or full-color printing, and it is commonly used for folding cartons, retail boxes, and cosmetic packaging.
Coated Paper
Defined partly by its surface treatment rather than by the substrate alone. It typically offers a smoother printing surface and is often used for printed wraps, cartons, and graphics-heavy packaging.
Quick Note: These descriptions are useful for narrowing down options, but the final choice depends on the packaging structure, material grade, GSM, coating, and production requirements.
The next question is therefore not simply which material looks better, but what type of package you are producing and what that structure requires from the paper.
Don't Choose the Paper Until You Choose the Packaging Structure
Paper selection should follow the packaging structure, not the other way around. A material that works well for a shopping bag may not be suitable for a folding carton or rigid box, even if the GSM or surface appearance looks similar.
Before comparing paper grades, first define what the package needs to do: carry weight, hold its shape, fold cleanly, support printing, or protect the product.
Paper Bags
Choosing a paper bag material depends on more than paper weight. Bag size, product load, handle construction, gussets, fold lines, print area, and expected reuse all affect the final specification.
For example, a lightweight apparel bag and a retail bag designed to carry heavier products may look similar, but they do not place the same demands on the paper or the handle attachment.
Kraft paper bags are common because kraft grades are available for many bag applications, but GSM alone should not be used to predict carrying performance. Bag construction and converting quality are equally important.
Folding Cartons
Folding cartons need a board that can provide enough stiffness while still being suitable for cutting, scoring, folding, and assembly.
Material selection should therefore consider:
required stiffness;
fold and score performance;
die-cutting requirements;
print surface;
product size and fit.
A cosmetics carton and a lightweight accessory carton, for example, may use similar artwork but still require different board specifications because the product weight, structure, and presentation requirements are different.
The main question is not simply whether the board looks premium, but whether it performs correctly after converting.
Rigid Boxes
Rigid boxes require a different way of thinking because the visible paper and the structural board often perform separate functions.
The rigid board provides the main shape, stiffness, and structural support. The wrapping paper mainly contributes surface appearance, printing, texture, and decorative finishing.
A simplified construction looks like this:
Printed wrapping paper → Adhesive → Rigid board
This distinction is important when reviewing specifications. For example, a 157 GSM coated wrapping paper may affect the printed surface of a rigid box, but it does not by itself determine the strength or stiffness of the complete box.
For rigid packaging, the wrapping material and the structural board should therefore be specified separately.
Sleeves and Other Paper Packaging
Sleeves, inserts, wraps, and similar paper packaging structures usually require a more focused balance of stiffness, folding behavior, print quality, and product protection.
|
Structure |
Main Material Considerations |
|
Paper Bag |
Load, handles, folds, bag size, print area |
|
Folding Carton |
Stiffness, scoring, die cutting, product fit |
|
Rigid Box |
Structural board plus separate wrapping material |
|
Sleeve / Wrap |
Folding, surface quality, fit, print requirements |
|
Insert |
Stiffness, protection, product positioning |
The key principle is simple: choose the packaging structure first, then compare materials based on the performance that structure requires.
Once the structure is defined, the next step is to compare the materials by how they actually perform-not just by how they look.
Compare the Materials by Performance, Not Just Appearance
Two papers can look similar but behave very differently during converting, shipping, and use.
Strength and Stiffness
Higher GSM does not automatically mean greater strength or stiffness.
GSM measures weight per square meter, while caliper, stiffness, board construction, and product load also affect performance.
For more detail, see our guide to GSM, thickness and paper stiffness.
Folding, Scoring and Converting
A stock that looks suitable as a flat sheet may still crack, crease poorly, or form badly after converting.
Scoring, folding, die cutting, grain direction, coating, and lamination can all affect production performance.
Common Mistake: Approving a flat paper sample without testing the finished structure.
Moisture, Grease and Surface Protection
Packaging exposed to moisture, grease, or oils may need additional coatings or barriers.
Do not assume that kraft, white card, or coated paper automatically provides a specific level of protection. The substrate, treatment, and real exposure conditions should be checked separately.
Once these physical requirements are clear, the next step is to evaluate printing and color performance.
How Each Material Affects Printing
The paper surface and base color can significantly affect how artwork appears after printing. Natural kraft, white card/SBS, and coated papers each create different conditions for color reproduction, image detail, and ink coverage.
Printing on Natural Kraft
When printing on kraft paper, the brown substrate becomes part of the final visual result. Light colors may appear darker or less saturated, while photographs and detailed artwork can shift compared with the same design printed on a white surface.
For designs that require brighter colors or stronger contrast, white ink on kraft or a white underprint may be used beneath selected areas.
Artwork Example: A white logo, pale pastel artwork, and full-color photography may each require a different printing approach on natural kraft.
If accurate brand colors are important, the artwork should be tested on the actual kraft stock before production.
Printing on White Card / SBS
White card and SBS provide a lighter, more neutral base for printing. This usually makes them suitable for process colors, detailed graphics, photography, and packaging where consistent brand-color reproduction is important.
However, the final result still depends on the specific board surface, coating, printing process, ink, and proofing method.
For projects with demanding artwork, it is useful to review available printing options and physical print samples before approving production.
Printing on Coated Surfaces
A coated surface is generally smoother and can support sharp detail and even ink coverage, but the result depends on the coating type and printing process.
Different coatings may respond differently to ink, toner, drying, or adhesion, so compatibility should be confirmed rather than assumed.
A useful question to ask your supplier is:
Is this stock and coating suitable for the intended printing process?
Once the basic print behavior is understood, the next step is to check how the material performs with decorative finishes such as foil stamping, embossing, spot UV, and lamination.
How to Choose: A 6-Step Material Selection Process
To choose the right packaging paper, start with the package requirements and narrow the options step by step.
Step 1 - Identify the Packaging Structure
Decide whether you are making a paper bag, folding carton, rigid box, sleeve, or another format. Different structures need different levels of stiffness, folding performance, and support.
Step 2 - Consider Product Weight and Protection
Think about the product's weight, fragility, and handling needs. The material should provide enough support without being unnecessarily heavy.
Step 3 - Check Artwork and Color Requirements
Consider whether the design uses simple graphics, full-color printing, pale colors, or strict brand colors. The substrate and surface should support the required print result.
Step 4 - Confirm Finishing Requirements
If the packaging uses foil stamping, embossing, spot UV, lamination, or other finishes, make sure the selected stock is compatible with those processes.
Step 5 - Review Sustainability Requirements
Check whether the project requires recycled content, certified fiber, specific coatings, or documentation for sustainability claims.
Step 6 - Compare Cost and Production Limits
Finally, compare MOQ, production complexity, lead time, shipping, and budget. Choose the option that meets the project requirements without adding unnecessary cost.
Structure → Protection → Artwork → Finishes → Sustainability → Cost
The best paper for packaging is the one that fits the full project specification, not simply the one with the highest GSM or most premium appearance.
Once you have a shortlist, the next step is to test the material before bulk production.
What to Test Before a Bulk Order
A material can look suitable on a specification sheet and still perform differently in production. Before approving a bulk order, validate the material, printed result, and final structure separately.
Material Sample
Start with a plain material sample to check whether the stock meets the expected physical and visual requirements.
Review the color, surface feel, thickness, stiffness, and overall appearance. This is especially useful when comparing similar paper grades that may look close in a supplier specification but feel different in hand.
At this stage, focus only on the material itself rather than print quality.
Request material samples before confirming the final stock.
Printed Proof
The next step is to check how the artwork performs on the actual material.
Review color reproduction, white ink, fine details, ink coverage, and any interaction between printing and decorative finishes.
A digital or screen proof is useful for checking layout, but it does not fully represent the physical printed result. Substrate color, surface texture, ink, and coating can all affect the final appearance.
For color-sensitive or graphics-heavy packaging, request a printed proof before bulk production.
Structural Prototype
A structural prototype is the most complete way to check whether the packaging works with the actual product.
Test the product fit, folds, closures, assembly, load, and level of protection. If the package includes inserts, handles, or multiple components, these should also be tested together.
A flat printed sample may look excellent but still fail to show whether the finished package fits correctly or performs well once the real product is inside.
Before final approval, request a material sample or structural prototype before bulk production.
Once these checks are complete, the final step is to confirm the full packaging specification with a consolidated checklist.
This is our introduction to choose a material does not have to be a difficult process as long as you know what to look for. The key to choosing paper weight is to ensure you understand your application and regional limitations, and then understand your application scenarios and materials. we are always here to support you via email (Sales01@jydprint.com) and phone (13825285917).