Waterborne acrylic emulsion has emerged as a cornerstone material in the packaging industry, addressing the urgent need for barrier solutions that balance performance, sustainability, and cost-efficiency. As global markets shift toward eco-friendly packaging alternatives, Waterborne Acrylic Emulsion stands out by replacing solvent-based barrier coatings with water as the dispersion medium, aligning with stringent environmental laws and the circular economy framework. Its exceptional combination of adhesion, flexibility, and tailored barrier performance makes it ideal for enhancing packaging substrates to resist moisture, oxygen, oils, and chemical contaminants. This article delves into the product overview, key features, application processes, and core benefits of Waterborne Acrylic Emulsion in packaging barrier applications.
Item No :
Waterborne Acrylic EmulsionApplication :
Prepare packaging substrates, apply coatings, dry, and optionally cure to achieve targeted barrier properties.Special Feature :
Eco-friendly, adaptable, substrate-compatible, and cost-efficient barrier solutions for packaging.Product Overview
Waterborne acrylic emulsion refers to water-based film-forming polymers engineered specifically to elevate the barrier characteristics of diverse packaging substrates, including paper, paperboard, and flexible plastic films. Compatible with a wide range of packaging grades—from lightweight flexible packaging to heavy-duty rigid packaging—Waterborne Acrylic Emulsion integrates smoothly into existing packaging production lines. This compatibility ensures that packaging performance is upgraded without compromising the inherent physical and functional traits of the base substrate, meeting the industry’s demand for packaging that withstands external hazards while adhering to global sustainability benchmarks. Waterborne Acrylic Emulsion is designed to deliver consistent barrier protection across different packaging formats, making it a versatile choice for manufacturers aiming to improve product shelf life and reduce environmental footprint.
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Key Features
◊ Sustainability and Environmental Compliance: Waterborne Acrylic Emulsion eliminates the use of volatile organic compounds (VOCs) and hazardous solvents, significantly lowering environmental impact and workplace safety risks. This aligns with carbon reduction initiatives and enables manufacturers to meet regional and international environmental regulations. Additionally, Waterborne Acrylic Emulsion is compatible with recycling and composting processes for packaging, minimizing waste throughout the product lifecycle and supporting circular economy goals.
◊ Versatility Across Packaging Types: Waterborne Acrylic Emulsion caters to nearly all packaging segments, including food and beverage packaging, pharmaceutical packaging, personal care product packaging, and industrial packaging. Customizable formulations of Waterborne Acrylic Emulsion can be tailored to specific barrier requirements, ranging from basic moisture resistance for dry goods packaging to high-performance oxygen and aroma barrier for perishable food and beverage containers.
◊ Preservation of Substrate Inherent Properties: Coatings based on Waterborne Acrylic Emulsion do not alter the core characteristics of packaging substrates—such as printability, flexibility, lightweight nature, or recyclability. This ensures that packaged products remain easy to handle, print, and shape, while still maintaining robust barrier performance against external contaminants.
◊ Cost-Effectiveness: Compared to specialty barrier materials like plastic laminates or wax coatings, Waterborne Acrylic Emulsion offers competitive pricing and lower operational costs. Its application processes are compatible with existing packaging production equipment, eliminating the need for costly capital investments in new machinery and reducing downtime during production line transitions.
|
Parameter |
Typical Value |
Unit |
Notes |
|
Appearance |
Colorless and transparent |
– |
Visual inspection |
|
Solid Content |
24-41 |
% |
Can be adjusted for formulation |
|
Viscosity (25°C, Brookfield RV) |
200-500CPS (25 ℃) |
mPa·s |
Spindle 3, 20 rpm |
|
Color |
<1 # (Fe-Co) |
/ |
/ |
|
Density (25°C) |
1.05–1.15 |
g/cm³ |
Typical value |
|
Recommended Solvents |
Water |
– |
For formulation compatibility |
|
Shelf Life |
12 |
months |
Stored in sealed containers at 5–35°C |
|
Storage |
Cool, dry place |
– |
Avoid direct sunlight and moisture |
| Waterborne Acrylic Emulsion | |||||||
| Model | Type |
Tg(℃) | mfft(℃) | Viscosity(mpa.s/25℃) | Soild Content % | pH Value | Character |
| RHERI®A1303 | Water-based acrylic colloid liquid |
<7 | <500 | 40±1 | 7.0-8.0 | A water-based acrylic semi-colloidal solution. Can be combined with 6037 to improve low-temperature heat sealing fastness. Also have good barrier effect when combined alone with carbodiimide. | |
| RHERI®9020 | Water-based acrylic colloid liquid |
29 | 10 | <500 | 40±1 | 4.5-6.5 | An aqueous colloid that requires alkali neutralization. The water resistance and resolubility can be adjusted with ammonia and amines with different boiling points. Also can be neutralized with NaOH to make water-washable coating. After high-temperature baking and decomposition, there is no residual carbonized black matter, so it can be used as colored connecting material for glass ceramics. Also can be used as resin for grinding color paste. |
| RHERI®9025 | Water-based acrylic colloid liquid |
29 | 10 | <200 | 24±1 | 8.0-9.5 | A product of 9020 neutralized with ammonia. It has good compatibility with water-based polyurethane, can be used as economical matte oil when combined with water-based self-extinction PUD. |
| For more product list in detail ,pls feel free to contact us | |||||||
Applications
◊ Substrate Preparation: Packaging substrates (paper, paperboard, plastic films) are first cleaned to remove dust, grease, and other impurities that may hinder coating adhesion. Optional surface treatments, such as plasma treatment or corona discharge, may be applied to increase surface energy, ensuring optimal wetting and uniform film formation of Waterborne Acrylic Emulsion on the substrate surface.
◊ Coating Application Methods: Common application techniques for Waterborne Acrylic Emulsion include gravure coating, flexographic coating, spray coating, and slot die coating. Gravure coating is widely used for high-volume flexible packaging production due to its precision and consistency, while slot die coating is preferred for rigid packaging substrates requiring uniform thick films. The coating weight of Waterborne Acrylic Emulsion is adjusted according to the desired barrier level, typically ranging from 2 to 30 grams per square meter.
◊ Drying and Film Formation: After application, the coated packaging substrate is passed through a controlled drying system where water evaporates, and the acrylic polymer particles fuse to form a continuous, uniform barrier film. Drying temperatures and air flow rates are optimized to prevent substrate warping, coating cracking, or incomplete film formation, ensuring the Waterborne Acrylic Emulsion coating achieves maximum barrier performance.
◊ Post-Treatment (Optional): For high-performance barrier requirements, post-treatment processes such as heat curing or electron beam crosslinking may be applied to enhance the density and crosslinking of the Waterborne Acrylic Emulsion film. This step further improves the coating’s resistance to mechanical stress, temperature fluctuations, and chemical exposure, extending the service life of the packaged product.

Benefits

◊ Streamlined Production: Waterborne Acrylic Emulsion integrates seamlessly with existing packaging manufacturing equipment, reducing the need for expensive upgrades or dedicated production lines, and minimizing production disruptions.
◊ Enhanced Environmental Credentials: The low-VOC, solvent-free formulation of Waterborne Acrylic Emulsion helps manufacturers comply with environmental regulations, reduce carbon footprint, and enhance brand reputation among eco-conscious consumers and business partners.
◊ Reliable Barrier Protection: Packaging treated with Waterborne Acrylic Emulsion delivers consistent protection against moisture, oxygen, oils, and contaminants, extending the shelf life of packaged goods and reducing product waste due to spoilage.
◊ Retained Packaging Functionality: Coated packaging retains key functional properties such as printability, foldability, and sealability, ensuring that the final product meets both performance and aesthetic requirements.
◊ Cost Efficiency: Waterborne Acrylic Emulsion reduces material and operational costs compared to traditional barrier coatings, while its compatibility with existing equipment lowers capital expenditure and improves overall production efficiency.


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