Name: Excellent Drying Performance Waterborne Polyurethane Resin For Coating Of Paper And PET/PVC/BOPP
Availability: InStock

Excellent Drying Performance Waterborne Polyurethane Resin For Coating Of Paper And PET/PVC/BOPP

Excellent Drying Performance Waterborne Polyurethane Dispersions have established themselves as a foundational technology for high-performance coatings applied to paper and a variety of plastic films, including PET, PVC, and BOPP. These specialized Waterborne Polyurethane Dispersions are meticulously formulated to be solvent-free, addressing the increasing demand for environmentally sustainable solutions in the packaging and industrial coating sectors. Through advanced polymer engineering, these Waterborne Polyurethane Dispersions deliver a unique combination of properties, including rapid drying kinetics that enhance production efficiency, exceptional film dry feel (anti-blocking properties), and superior compatibility with ethanol, which is crucial for formulating stable, high-solid content inks and adhesives. This technology ensures robust adhesion and durable bonding across these diverse substrates, meeting the stringent performance requirements of modern flexible packaging and lamination applications.

Item No :
Waterborne Polyurethane Dispersions RHERI®RNY0436
Application :
RHERI®RNY0436
Special Feature :
Excellent drying performance and ethanol dilution stability.

Description

Product Overview

Excellent Drying Performance Waterborne Polyurethane Dispersions for Coating of Paper and PET/PVC/BOPP Films represent a state-of-the-art technology engineered to deliver superior adhesion and functional performance across diverse substrates in flexible packaging and industrial applications. These advanced Waterborne Polyurethane Dispersions are specifically formulated as solvent-free systems, combining exceptional bonding strength with rapid drying kinetics that significantly enhance production line efficiency. Through precise polymer design, these Waterborne Polyurethane Dispersions achieve a remarkable balance of properties, including outstanding film dry feel (anti-blocking characteristics) and excellent compatibility with ethanol, enabling formulators to develop stable, high-performance coatings and laminating adhesives with adjustable solid content. This specialized technology integrates seamlessly into industrial coating processes, forming a uniform and durable film that ensures reliable adhesion to paper as well as challenging plastic surfaces such as PET, PVC, and BOPP. It directly addresses the critical industry demands for sustainable, solvent-free solutions that deliver both processing efficiency and end-use performance, enabling packaging and industrial materials that combine robust protection with environmental responsibility.

Waterborne Polyurethane Dispersions

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Key Features

◊ Exceptional Drying Performance and Processing Efficiency:

These Waterborne Polyurethane Dispersions are specifically engineered through advanced polymer design to exhibit rapid drying kinetics upon application. The unique molecular architecture promotes swift water evaporation and efficient coalescence, forming a continuous film in significantly reduced timeframes. This outstanding drying performance translates directly into enhanced production line speeds and improved manufacturing throughput for coating applications on paper and plastic substrates such as PET, PVC, and BOPP, offering formulators a distinct operational advantage.

◊ Superior Film Dry Feel and Ethanol Compatibility:

This specialized grade of Waterborne Polyurethane Dispersions achieves an optimal balance between surface properties and formulation versatility. The polymer chains are designed to impart exceptional dry feel to the coating film, characterized by excellent anti-blocking characteristics that prevent undesirable adhesion between coated surfaces. Furthermore, these Waterborne Polyurethane Dispersions demonstrate outstanding compatibility with ethanol, enabling formulators to adjust solid content and viscosity while maintaining colloidal stability—a critical requirement for producing high-performance inks, overprint varnishes, and laminating adhesives.

◊ Solvent-Free Technology with Strong Substrate Adhesion:

Developed as a genuine solvent-free system, these dispersions align perfectly with global regulatory trends toward sustainable coating solutions with minimal environmental footprint. The formulation is free from organic solvents and volatile amines, significantly reducing VOC emissions while ensuring workplace safety. Despite the absence of co-solvents, these Waterborne Polyurethane Dispersions deliver robust bonding strength across diverse substrates, forming durable interfacial connections with both cellulosic paper surfaces and challenging non-porous plastic films including PET, PVC, and BOPP through optimized wetting and penetration characteristics.

◊ Versatile Application Performance and Storage Stability:

Designed for industrial versatility, this polyurethane dispersion technology maintains stable viscosity profiles and consistent particle size distribution throughout its recommended shelf life when stored under proper conditions (5-35°C). The formulation exhibits excellent mechanical stability under high-speed coating and lamination processes, resisting shear-induced coagulation. This robust colloidal stability, combined with the product's balanced pH range (7.0-9.0) and controlled viscosity (<1000 mPa·s), ensures reliable, reproducible performance in demanding production environments while offering formulators the flexibility to develop customized coating solutions for flexible packaging and industrial applications.

Parameter	Typical Value	Unit	Notes
Appearance	semi transparent liquid	–	Visual inspection
Solid Content	32±1	%	Can be adjusted for formulation
Viscosity (25°C, Brookfield RV)	<1000	mPa·s	Spindle 3, 20 rpm
pH-value (25°C) pH	7.0 - 9.0	/	/
MFFT(°C)	Approximately 7 ℃	℃	Typical value
Recommended Solvents	-	–	For formulation compatibility
Shelf Life	6	months	Stored in sealed containers at 5–35°C
Storage	Cool, dry place	–	Avoid direct sunlight and moisture

Applications

The application of Excellent Drying Performance Waterborne Polyurethane Dispersions for coating paper and PET/PVC/BOPP films requires precise process control to fully realize their performance advantages in flexible packaging and industrial laminating applications. The following outlines the critical steps for optimal results.

◊ Substrate Selection and Surface Considerations:

Paper substrates should have appropriate surface porosity and absorbency to facilitate mechanical interlocking of the coating. For plastic films including PET, PVC, and BOPP, the surface energy should be verified, with corona or plasma treatment recommended for optimal wetting. These Waterborne Polyurethane Dispersions are formulated with balanced surface tension characteristics to achieve uniform wetting across both hydrophilic paper surfaces and hydrophobic plastic films, ensuring defect-free coating application without dewetting or crater formation.

◊ Coating Application Techniques:

These specialized Waterborne Polyurethane Dispersions demonstrate excellent compatibility with industrial coating methods including gravure, reverse gravure, slot-die, and flexographic processes. For laminating adhesive applications, precise metering is essential to achieve target coat weights typically ranging from 2-5 g/m² (dry). The dispersion's controlled viscosity profile (<1000 mPa·s) and shear-thinning behavior ensure consistent transfer and uniform film formation across a wide range of application speeds, from moderate to high-speed production lines exceeding 200 m/min.

◊ Drying Process Optimization:

The defining characteristic of these Waterborne Polyurethane Dispersions—their excellent drying performance—enables significant process efficiency gains. The rapid water release kinetics allow for reduced oven temperatures or increased line speeds compared to conventional dispersions. Multi-zone drying ovens should maintain appropriate temperature profiles (typically 60-120°C) with adequate airflow to remove evaporated water efficiently without causing surface defects such as blistering or orange peel. The fast film formation capability ensures complete coalescence within the available drying length, producing a continuous, homogeneous film ready for immediate further processing or rewinding.

◊ Post-Application Performance Development:

Upon complete drying, these Waterborne Polyurethane Dispersions develop their characteristic properties without requiring additional curing steps. The coating exhibits excellent dry feel (anti-blocking characteristics) immediately upon cooling, enabling immediate rewinding and converting operations without the need for slip additives or anti-blocking powders. The ethanol compatibility of the dried film allows for subsequent overprinting or lamination with ethanol-based inks and adhesives without interlayer adhesion failure. For laminating applications, the heat-activated bonding properties enable thermal lamination at moderate temperatures (80-120°C), forming strong interfacial bonds between paper and plastic films that withstand subsequent converting and end-use mechanical stresses.

Benefits

◊ Achieve Significant Production Efficiency Gains with Fast-Drying Technology:

The exceptional drying kinetics of these Waterborne Polyurethane Dispersions enable manufacturers to dramatically increase line speeds or reduce drying energy consumption compared to conventional systems. The rapid water release and film coalescence characteristics minimize bottleneck issues in high-speed coating and laminating operations, allowing processors to maximize throughput without compromising coating quality. This efficiency advantage translates directly into reduced production costs and enhanced manufacturing capacity for converters working with paper and plastic film substrates including PET, PVC, and BOPP.

◊ Ensure Superior End-Product Quality with Excellent Film Dry Feel:

These specialized Waterborne Polyurethane Dispersions impart outstanding anti-blocking properties to the coated surface, eliminating undesirable adhesion between adjacent layers during rewinding, slitting, and converting operations. The exceptional dry feel eliminates the need for external slip additives or anti-blocking powders that could compromise interlayer adhesion or optical clarity. This intrinsic surface property ensures clean separation of coated materials, reducing waste and rework while maintaining the pristine appearance required for high-quality flexible packaging and industrial applications.

◊ Simplify Formulation with Outstanding Ethanol Compatibility:

The molecular architecture of these Waterborne Polyurethane Dispersions has been precisely engineered to maintain colloidal stability across a wide range of ethanol concentrations. This exceptional ethanol compatibility enables formulators to adjust solid content and viscosity with confidence, facilitating the development of customized coating systems with tailored application properties. Whether formulating high-solid-content inks, overprint varnishes, or laminating adhesives, the stable dispersion behavior ensures reproducible performance batch after batch without the risk of coagulation or viscosity drift.

◊ Meet Sustainability Goals with Solvent-Free, Low-VOC Technology:

Developed as genuine solvent-free systems, these dispersions contain no organic cosolvents or volatile amines, ensuring minimal environmental footprint and compliance with increasingly stringent global VOC regulations. The waterborne nature significantly reduces workplace exposure concerns and simplifies environmental permitting requirements for manufacturing facilities. By selecting these Waterborne Polyurethane Dispersions, converters can develop sustainable packaging solutions that meet brand owner sustainability commitments and consumer expectations for environmentally responsible products.

◊ Achieve Reliable Multi-Substrate Bonding Performance:

Despite the absence of organic cosolvents, these advanced dispersions deliver robust adhesion across diverse substrate types with varying surface energies. The balanced wetting characteristics ensure uniform coverage on both hydrophilic paper surfaces and hydrophobic plastic films including PET, PVC, and BOPP. The resulting bond strength withstands subsequent converting stresses and end-use mechanical demands, providing converters with a versatile single-solution platform that simplifies inventory requirements while delivering reliable performance across multiple applications.

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