This product series focuses on high-performance Waterborne Polyurethane Resin, which is carefully developed to meet the diverse and strict needs of the printing and packaging industry. As an environmentally friendly material solution, Waterborne Polyurethane Resin not only delivers excellent performance in adhesion, flexibility, and durability but also fully complies with the strict regulatory standards for safety and environmental protection in printing and packaging applications, providing a reliable material choice for the industry.
Item No :
Waterborne Polyurethane ResinApplication :
Used in flexible packaging, inks, labels and food packaging coatings.Special Feature :
Waterborne Polyurethane Resin has good adhesion, resistance, processability and compatibility.Product Overview
The Waterborne Polyurethane Resin in this series represents an advanced and sustainable option in the field of printing and packaging materials. Formulated as aqueous polyurethane dispersions, Waterborne Polyurethane Resin is designed with customized properties to adapt to a wide range of common packaging substrates, such as PET films, CPP films, PVC films, and aluminum surfaces. In modern printing and packaging scenarios, Waterborne Polyurethane Resin excels in printability, ensuring that printed patterns and texts are clear, vivid, and long-lasting. It also offers outstanding heat resistance, enabling packaging to withstand various high-temperature processing steps during production. Additionally, the excellent mechanical properties of Waterborne Polyurethane Resin ensure that packaging maintains its structural integrity during transportation and use. What makes this Waterborne Polyurethane Resin even more notable is its environmental protection feature—adopting a solvent-free formula, it effectively reduces volatile organic compound (VOC) emissions, aligning with the global trend of green and low-carbon development in the printing and packaging industry.
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Key Features
◊ Water-based Polyurethane Resin exhibits excellent adhesion to common packaging substrates, including PET, CPP, PVC, and aluminum materials, ensuring firm bonding between the material and the substrate, and avoiding issues such as peeling or delamination.
◊ As an aqueous polyurethane dispersion, Waterborne Polyurethane Resin has good pigment wetting and dispersion capabilities, which is crucial for ink formulations in printing applications, as it helps achieve uniform color distribution and stable ink performance.
◊ Waterborne Polyurethane Resin provides high alcohol resistance and chemical resistance, forming a protective barrier on the packaging surface to prevent damage from alcohol, oils, and other chemical substances, thus extending the service life of the packaging.
◊ With good heat sealability and thermal resistance, Waterborne Polyurethane Resin can withstand the heat sealing process in packaging production and resist high temperatures during sterilization or transportation, ensuring the packaging remains intact.
◊ Waterborne Polyurethane Resin has a low viscosity, which simplifies the application and processing process. It can be easily applied through common coating or printing methods, improving production efficiency and reducing operational difficulty.
◊ Waterborne Polyurethane Resin has excellent compatibility with various printing and coating systems in the industry. It can be seamlessly integrated with different types of inks and coatings, providing flexibility for the production of diverse printing and packaging products.
| Parameter | Typical Value | Unit | Notes |
| Viscosity (25°C, Brookfield RV) | 50-800 | mPa·s | Spindle 3, 20 rpm |
| Soild Content | (34-39)±1 | % | / |
| pH Value | 6.0-9.0 | – | / |
| Shelf Life | 12 | months | Stored in sealed containers at 5–35°C |
| Storage | Cool, dry place | – | Avoid direct sunlight and moisture |
| Waterborne Polyurethane Resin | ||||||||
| Model | Viscosity(mpa.s/25℃) | Soild Content % | pH Value | Tensile Strength(Mpa) | 100% Modulus (Mpa) |
Elongation % |
Dried Forming-Film Surface Tension | Character |
| RHERI®U105 | <500 | 35±1 | 6.0-8.0 | 38 | Solvent-free, aliphatic, outstanding weather resistance, non-yellowing, self-cross-linking, excellent chemical resistance. Can be used with matte polyurethane to prepare replacement oil, or can be used as gloss replacements. Combined with 6027 to prepare UV ink primer varnish with better flexibility. |
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| RHERI®U106 | <500 | 39±1 | 6.0-8.0 | <36 | Solvent-free, aliphatic, with high hardness, excellent solvent resistance. Excellent anti-adhesion and anti-indentation properties. | |||
| RHERI®U107 | <400 | 35±1 | 7.0-9.0 | >40 | NMP containing, high hardness, can improve anti-adhesion of products, have good adhesion to PVC. | |||
| RHERI®U110 | <800 | 37±1 | 7.0-9.0 | 6.5 | 4 | 160% | <38 | NMP containing, has good adhesion to PVC, good wetting and dispersion of TiO2 and various organic pigments. Can be ground in color paste, and has excellent storage stability. |
| RHERI®U111 | <600 | 34±1 | 7.0-9.0 | 27 | 13 | 350% | <38 | NMP containing, has good adhesion to PVC and is resistant to plasticizer migration. |
| RHERI®U114 | 50–300 | 35±1 | 7.0-8.5 | 38-40 | Providing excellent metal orientation and good stability of pigment formulations. Providing good mechanical & chemical properties, and good adhesion to PVC, high alcohol tolerance(cannot be diluted directly with anhydrous ethanol). Good interlayer fastness with UV ink, good folding resistance and explosion-proof, combined with 6027 for good heat storage. | |||
| For product list in detail ,kindly contact me for more | ||||||||
Applications
◊ Flexible packaging coatings and laminations: Waterborne Polyurethane Resin forms a protective coating on flexible packaging, enhancing its durability and resistance to external factors, while also improving the bonding effect in lamination processes.
◊ PVC shrink labels and packaging films: For PVC shrink labels and packaging films, Waterborne Polyurethane Resin ensures good adhesion and flexibility, allowing the labels and films to shrink evenly and fit tightly to the packaged products.
◊ Ink formulations for packaging printing: As a key component in ink formulations, Waterborne Polyurethane Resin improves the pigment dispersion, adhesion, and water resistance of inks, making printed patterns and texts on packaging more stable and long-lasting.
◊ Primer coatings for packaging materials: Used as a primer coating, Waterborne Polyurethane Resin enhances the adhesion between the subsequent coating or ink and the packaging substrate, laying a solid foundation for the overall performance of the packaging.
◊ Protective overprint varnishes: Waterborne Polyurethane Resin serves as a protective overprint varnish, forming a transparent protective layer on the printed surface of packaging, which resists abrasion, moisture, and fading, maintaining the freshness of the printed content.

Benefits

◊ Enhanced Printability: Waterborne Polyurethane Resin optimizes the surface properties of packaging materials, providing an excellent foundation for printing. It ensures that inks adhere firmly to the substrate, resulting in clear, sharp, and high-quality printed images and texts, which enhances the visual appeal of the packaging.
◊ Environmental Compliance: With its water-based and solvent-free formulation, Waterborne Polyurethane Resin has low VOC content. This not only reduces environmental pollution but also meets the strict environmental regulations and standards of the printing and packaging industry, helping enterprises achieve green production.
◊ Excellent Adhesion: Waterborne Polyurethane Resin enables reliable bonding to a wide range of packaging substrates, including various plastics, metals, and specially treated surfaces. This strong adhesion prevents issues such as coating peeling or ink fading, ensuring the long-term stability of the packaging.
◊ Heat Resistance: Waterborne Polyurethane Resin can withstand various high-temperature processes in the packaging production, such as heat sealing and sterilization. It remains stable under high temperatures, ensuring that the packaging does not deform or lose its performance, thus meeting the requirements of different production processes.


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