Industrial packaging often requires paper that can resist moisture, grease, heat or chemical exposure during use. Barrier-coated papers use specialised coatings to provide the protection required for each application.
At Shittla Paper Global, we help manufacturers select paper grades that combine the strength, flexibility and printability of paper with the barrier performance their packaging needs.
Table of Contents
What Is Barrier-Coated Paper?
Barrier-coated paper is paper treated with a specialised coating to improve its resistance to specific external factors.
It has two main components. The base paper provides strength, flexibility and printability. The barrier coating provides the required resistance to moisture, grease or other substances.
The coating type and thickness can be adjusted to suit the application, converting process and conditions of use.
Why Are Barrier Properties Important in Industrial Applications?
Industrial packaging often faces demanding conditions during handling, storage and transport. Moisture can weaken uncoated paper, while grease can penetrate or stain it. Depending on the grade, a barrier coating can offer several benefits.
- Moisture resistance. Helps limit moisture uptake and protect the packaging.
- Grease and oil resistance. Helps reduce the penetration of oils and fats into the paper.
- Added product protection. Creates a protective layer between the product and its surroundings.
- Structural performance. Helps the pack retain its strength during handling and transport when the barrier is matched to the conditions.
- A suitable coating can support clear branding and product information.
- Converting versatility. Depending on its construction, the paper can be cut, folded, printed, laminated or formed.
Different Types of Barriers in Coated Papers
Different applications call for different levels of protection. The coating should match what the finished pack will be exposed to.
1. Moisture Barrier
A moisture barrier can help limit moisture uptake or water vapour transmission, depending on the coating. This is useful when packaging is exposed to humidity during storage or transport.
2. Grease and Oil Barrier
Grease-resistant coatings help limit the penetration of oils and fats. They are useful for food packaging and industrial applications involving oily products. See how barrier-coated printed paper is used in food packaging.
3. Water-Resistant Barrier
Water-resistant paper helps protect against direct contact with liquid water, such as droplets or splashes. The degree of protection depends on the coating and the conditions of use. For beverage packaging, see the coated grades in our paper cup board range.
4. Oxygen and Gas Barrier
Specialised coatings can reduce oxygen or other gas transmission to help protect products that are sensitive to exposure.
5. Chemical Barrier
Some industrial products need packaging that resists contact with specific chemicals. The coating system should be selected for the substance and the expected exposure conditions.
Key Industrial Applications
- Food packaging. Wraps, pouches, trays, liners and bakery packaging can use grades that resist oils or moisture. Explore our papers for the food industry.
- Pharmaceutical packaging. Suitable packaging components may use paper with controlled barrier properties to help protect products from environmental exposure.
- Chemical and industrial packaging. Some industrial products need added resistance to oils, moisture or specific chemicals.
- Consumer goods. Barrier-coated paper can provide added protection while retaining the look and feel of paper.
- Flexible packaging. Paper can provide stiffness and printability in multilayer packs, while other layers contribute additional protection. Heat-sealable coatings can be used in structures that require a heat-activated seal.
Factors to Consider When Selecting Barrier-Coated Paper
Match the paper to the finished package and its performance requirements. Evaluate these factors before selecting a grade.
- Required barrier level
- Base paper GSM and strength
- Coating type
- Moisture and grease resistance
- Heat resistance, where required
- Printing requirements
- Folding and converting performance
- Compatibility with adhesives or laminates
- Suitability for the intended use
- Applicable food-contact or other regulatory requirements
- Sustainability and end-of-life considerations
The right base paper and coating combination can improve converting and packaging efficiency.
Barrier-Coated Paper and Sustainable Packaging
Paper uses renewable fibres. The environmental performance of a coated paper depends on the coating chemistry, substrate, production process and available recycling routes.
Assess the complete packaging structure, including any adhesives and laminates, and consider how the finished pack can be recovered after use. A barrier suited to the application can help reduce product damage and material waste. Read more about barrier-coated paper in sustainable packaging.
The Role of Quality Manufacturing
Consistent barrier performance depends on coating uniformity and base paper formation. Surface properties, moisture content and convertibility can also affect how the paper performs during production.
At Shittla Paper Global, we work with industrial customers to understand their technical specifications and match them with suitable paper grades. Our barrier coatings for paper and board support packaging applications with different protection and converting requirements.
Conclusion
Barrier-coated paper combines the strength and flexibility of paper with targeted resistance to moisture, grease, water, gases or specific chemicals. The right grade depends on how the finished pack will be converted, handled, stored and transported.
Contact Shittla Paper Global to discuss the paper grade and barrier properties your industrial packaging application requires.
