Paperboard is the preferred packaging material choice for a number of industries, including food and food service. Its market share is expected to expand even further in the coming years due to greater environmental consciousness among consumers. Recent studies show that 71% of respondents were more likely to purchase products from brands that package in paperboard or cardboard than other materials.
For companies looking to package both new and existing products in paperboard folding cartons, it’s important to understand the different types of paperboard available and which grade is best suited for their product’s packaging.
What Is Paperboard
Paperboard is a thick, rigid, yet lightweight material made from compressed wood pulp and/or recycled material fibers. Because it’s made from sustainable and recycled materials, it’s an eco-friendly alternative to other packaging options. Paperboard folding cartons are highly versatile and are often used in the food and food service, health and beauty, and medical industries.
Advantages of Paperboard Packaging
Sustainably sourced
Paperboard is made from recycled materials or sustainably sourced wood pulp, reducing environmental impact.
Lightweight
Lower weight contributes to decreased transportation costs.
Versatile options
Multiple thicknesses and folding carton styles are available to suit a wide range of products.
Cost-effective
Paperboard is a more affordable material than other packaging alternatives like plastic or glass.
Scalable production
Manufacturing paperboard packaging, including printing, is highly efficient.
Types of Paperboard
There are many different grades of paperboard available, but the following are some of the more commonly used options.
Clay Coated Newsback (CCN) Paperboard
CCN paperboard, also called coated recycled paperboard (CRB), is a popular low-cost, eco-friendly choice for food packaging. It’s made from a blend of recycled materials like newspapers, paper products, and discarded corrugated cardboard. It has a smooth, white clay coating and semi-gloss finish, making it ideal for printed graphics. The finish also offers a significant barrier to moisture and other environmental contaminants.
Uncoated Unbleached Kraft (UUK)
UUK paperboard is an unbleached, uncoated, single-ply paperboard material. Because it doesn’t go through any bleaching or coatings, this material is brown in color and fully recyclable. It offers excellent tear resistance and durability for cartons while still having good printability, even when compared to coated and bleached alternatives.
Solid Bleached Sulfate (SBS) Paperboard
SBS paperboard is a premium material made from chemically whitened wood pulp. The chemical bleaching process leaves a white, smooth surface optimal for printing and graphics. While this paperboard is more expensive than other options, it offers a more high-end look and feel.
Coated Natural Kraft (CNK) Paperboard
CNK paperboard, also called solid unbleached sulfate (SUS), is a standard option made from virgin unbleached softwood pulp. The top layer features a clay-coated matte finish while the underside is uncoated. This material is popular for frozen food since it is effective at resisting moisture and dust intrusion.
How to Choose the Right Paperboard Substrate for Packaging
Selecting the right paperboard substrate depends on several factors, including product needs, branding goals, and environmental considerations.
Product Protection
Many products, especially in the food and food service industry, demand robust protection against moisture, grease, and other contaminants. CNK and SBS paperboard materials have the necessary properties to ensure products susceptible to contamination in frozen or refrigerated spaces remain safe for customers.
Printability and Finishing
High-quality printing, finishing, and other aesthetic features help brands create shelf appeal for their products. With retail and e-commerce spaces so saturated, standing out from the competition is critical for product success. SBS offers a premium smooth, white surface perfect for vibrant colors and graphics. CCN allows for high-quality printing on the clay-coated side. These substrates, along with CNK, also accommodate a range of finishing techniques like foil stamping, embossing, and debossing.
Environmental Impact
Sustainability is top of mind for both consumers and companies. Using paperboard boxes and folding cartons helps brands work toward green initiatives. Companies should work with packaging providers who source paperboard from sustainably managed forests and maintain green chain-of-custody certifications. On the consumer front, recyclability is a major area of focus. All of these paperboard types are recyclable, with CCN having the additional benefit of coming from recycled sources.