The Complete Guide to Water-Based Barrier Coating Paper

● Fillers

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Fillers are present in WBBC in the form of a pigment either made from a singular or sometimes multiple sources. The sources include precipitated or ground calcium carbonate, kaolin, or talc.

The fillers present in the pigment form are to make the liquid WBBC runny and help in the easy application of the liquid on the paper. Fillers improve the barrier performance and improve the product economy.

Water-based barrier coating uses a dispersion technique to coat paper. The liquid WBBC is placed over the paper in a skinny layer using blade coating, surface sizing, or curtain coating units on an online board machine. The exact process can also be performed on an offline machine using similar technology. The number of layers applied on the paper directly corresponds to the use of the final product and the number of characteristics the final product needs to have.

The coating process for WBBC differs from that of other paper coating agents as it is not made from plastic. For plastic-based coating solutions, the mix needs to be heated and melted to create the liquid, applied in layers over the paper. Since WBBC is water-based, there is no requirement to heat and melt the material to begin coating.

The process begins with the aqueous solution being applied over the paper in a thin layer. After the coating is complete, the paper is dried, and the water is evaporated off the surface. After the water is evaporated, the paper becomes hydrophobic and able to hold water without any problems.

The technique used in applying WBBC over the paper can significantly impact the finished product. The thickness of the WBBC coating and the drying of the paper can also impact the hydrophobic performance of the coated paper. For example, if WBBC was applied on the paper using a curtain method, it guarantees equal thickness of WBBC coating throughout the paper. On the contrary, if the application was made using the blade coating process, it guarantees a smooth coating over the paper.

• Market Penetration & Availability of Technology

There are recycling plants that can recycle coated paper products without segregating them. However, the number of such plants is few and far between.

This is because even the technology they use to achieve this feat is unavailable to most other plants.

Or in some cases, the technologies are specialized and expensive, which other plants in different parts of the world might not be able to afford.

•  Cost Of Recycling

If the technology is available to recycle coated paper products, then other recycling plants should try to incorporate these technologies in their process, right? Yes, but also no.

The cost of recycling coated paper products increases exponentially when you incorporate new machinery and other processes required to recycle them.

When compared with the value and cost of the raw materials of the coated paper products, it does not justify putting so much investment in recycling the products.

So recycling plants mostly don’t have enough incentive to recycle coated paper products and instead send them to landfills.

There are various uses of water-based barrier coating paper products, but it is mainly used in the food industry for making disposable food packaging.

WBBC is chemically inert and does not influence or impact the taste or smell of the contents in its packaging. These factors make WBBC coating perfect for use in the food industry.

Most of the individual elements used for making WBBC is cleared by the FDA and other governmental authorities for direct food contact. Some of the most common applications of WBBC are mentioned below.

• Disposable paper cups
• Ice cream boxes
• Microwavable food packaging
• Disposable folding box
• Disposable food containers
• Disposable food serving trays
• Food wrappers
• Disposable paper tableware
• Paper pads
• Disposable dairy packaging
• Disposable meat packaging
• Cheese packaging
• Any other food packaging requirement that requires high oil and grease resistance properties

• Plastic-Free 

Today, everyone knows that plastic is terrible for the environment, and everybody wants to make a change and replace plastic with other products, but it is challenging to do.

Even though we are not yet in a position to replace and remove plastic from the environment altogether, the use of WBBC can guarantee that customers can stop plastic use in the food packaging industry at least.

WBBC ensures that the eco-friendly packaging you get with your favorite takeout food is genuinely sustainable and eco-friendly.

Awareness among recyclers, consumers, and businesses can genuinely help WBBC reach its true potential and bring meaningful change.

It has some of the best benefits in terms of paper coating agents, and it is expected that awareness alone among people can help make it the following standard of paper coating agents.

So, be sure to spread awareness about WBBC to the people you know, and take a moment to ask companies what containers they are using to serve you your favorite food.

With your interest and diligence, companies will be incentivized to make a meaningful change towards eco-friendly and sustainable products, so make sure you use your voice when it matters for a better world tomorrow

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Barrier coatings for paper are surface coatings applied to the paper surface to provide protection against external elements such as water, oil, gases, and various chemicals. These coatings serve as a barrier, preventing the penetration of these elements into the paper and preserving its integrity.

As the packaging industry moves towards eco-friendly, plastic-free solutions, barrier coatings for paper packaging have emerged as a vital technology for protecting products from moisture, oil, gases, and chemicals while maintaining recyclability and sustainability. Human New Material offers an advanced range of barrier coating solutions designed to enhance both the functional and aesthetic performance of paper packaging.

Why Use Barrier Coatings for Paper?

Traditional plastic laminations, such as PE or wax coatings, create disposal and recycling challenges. In contrast, Human New Material’s water-based, fluorine-free barrier coatings deliver equivalent — or superior — protection while preserving the paper’s recyclability and compostability. These coatings enable manufacturers to meet evolving food safety regulations, sustainability targets, and consumer demand for greener packaging alternatives.

Advantages

● Improved barrier performance: Barrier coatings provide enhanced protection against moisture, oil, and oxygen, greatly extending the shelf life and freshness of packaged products.

● Better printability: Barrier coatings have superior printability, enabling more detailed and vibrant printing on paper packaging, thereby improving brand recognition and consumer appeal.

● Reduced cost: Although the initial development and production costs of barrier coatings are higher than traditional PE lamination, the economies of scale and technological advancements are driving down the costs, making barrier coating for paper a more cost-effective option in the long run.

Key Features

● Suitable for cold and hot water

The barrier coating on paper is engineered to maintain its integrity and performance when exposed to both cold and hot water. This ensures that the coated paper can be used in a wide range of applications where it may come into contact with varying water temperatures without compromising its structural stability or protective qualities.

● Resistant to cold and heat oil

This advanced coating provides exceptional resistance against oils at both low and high temperatures. Whether it's protecting food packaging from fatty substances during refrigeration or resisting oil penetration under heated conditions, the coating offers reliable protection, preserving the quality of the contents and extending shelf life.

● Superior anti-blocking

With superior anti-blocking properties, the coated paper prevents unwanted adhesion between layers when stacked or rolled. This feature is crucial for ensuring smooth processing and handling, reducing the risk of damage during manufacturing, storage, and transportation, while also facilitating easy opening for consumers.

● Heat sealing

The barrier coating incorporates heat-sealing capabilities that allow for secure and efficient sealing of packages. This enables manufacturers to create strong seals that are both airtight and moisture-resistant, enhancing product preservation and providing an effective barrier against external contaminants.

● Alcohol resistance

Designed with alcohol resistance in mind, this coating protects the paper from degradation when exposed to alcoholic substances. It ensures that the material remains intact and functional, even when used in environments or applications involving alcohol-based products, such as wipes or packaging for certain beverages.

● Bending resistance

The coating enhances the paper's ability to withstand bending and folding without cracking or breaking. This property is particularly beneficial for applications requiring flexibility, such as envelopes, folders, or any form of packaging that needs to maintain its shape and strength through various manipulations.

● Printing adaptability

Barrier-coated paper is optimized for printing, offering excellent ink reception and color reproduction. This makes it ideal for high-quality graphics and branding, ensuring that printed materials not only serve their protective function but also deliver a visually appealing presentation that meets marketing and design standards.

● Waterproof

The waterproof characteristic of the barrier coating ensures that the paper can resist water absorption, protecting the contents from wet conditions and maintaining the integrity of the package. This feature is essential for outdoor use, humid environments, or any scenario where exposure to water is likely.

Application Areas

Our barrier coatings are engineered for versatile use in:

Food & Beverage Packaging — takeaway boxes, cups, plates, snack wraps

Wipes & Alcohol-Based Products — sachets, wet wipe packaging

Industrial Packaging — cartons, liners, wrapping papers

Retail & E-Commerce Packaging — branded gift wraps, mailers, protective envelopes

Eco-Friendly, Regulatory-Compliant

100% Fluorine-Free / PFAS-Free Formulation

Repulpable and recyclable within standard paper recycling streams

Compliant with EU, FDA, GB food contact safety standards

Enables brands to reduce plastic use and meet global sustainability goals

Choose Human New Material for Proven, High-Performance Barrier Coatings

Backed by extensive R&D and application expertise, our barrier coatings are customizable to match your specific substrates, processing equipment, and performance requirements. Whether for hot food applications, industrial packaging, or retail display solutions, we deliver coatings that protect, perform, and promote sustainability.

Evaluation of Barrier Performance

Selection Guide

Specifications

Item Code

See also:
ODM. The Different Types of Industrial Specialty Gases

If you are looking for more details, kindly visit Coatings for 3-Piece Easy Open Cans.

Solid content /%

Viscosity

Product Features

Product Type

HZ Series

40%±2

30±5s

Bending resistance,

alcohol resistance

PA

HZ Series

35%±2

40±5

Matt, wear resistance times,

printing adaptability

PUD

LZG-046

40%±2

15±5s

High glossy,

wear resistance times,

waterproof

PA

LZG062

30%±2

15±5s

Good adhesion to aluminum,

good transparency,

anti-scratch, anti-blocking

PA

HZ

29%±2

20±5s

Food grade,

heat sealing,

medium speed machine cup punching (100 pcs / min),

anti-blocking

PA + EAA

HZ

29%±2

15±5s

Food grade,

heat sealing 130℃*0.1s,

anti-blocking

PA + EAA

LZG-108

40%±2

15±5s

Heat sealing,

high performance-cost ratio,

anti-blocking

PA

LZG-060

40%±2

15±5s

Heat sealing,

anti-blocking

PUD

LZG-089

40%±2

15±5s

Heat sealing,

high performance-cost ratio,

anti-blocking

EVA