Product Overview
Runshine water based polyurethane dispersion is composed of carefully selected components, this resin is engineered to deliver excellent adhesion on diverse packaging substrates like paper, cardboard, and plastic films. Polyurethane dispersion PUD uses water - based technology enables efficient film formation, striking a balance between fast drying and forming robust, flexible layers. Whether used to coat packaging materials or as a key ingredient in inks, polyurethane binder consistently contributes to the integrity and functionality of the end - products in packaging and ink realms.
Waterborne Polyurethane Resin
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Key Features
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◊Exceptional Adhesion: Polyurethane dispersion establishes firm bonds with packaging substrates (paper, cardboard, plastic films) and ensures ink adherence, preventing smudging or peeling.
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◊High Flexibility: Forms flexible films that accommodate bending, folding of packaging materials without cracking, maintaining integrity during handling.
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◊Rapid Drying: Water - based formula allows quick drying, boosting production efficiency in packaging coating and ink printing processes.
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◊Chemical Resistance: Withstands common chemicals in packaging environments,forming film of water based polyurethane resin is protecting packaging and ink layers from degradation.
| 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. |
| 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. |
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Applications
◊ Labeling: Improves label adhesion on packaging substrates, ensuring labels stay intact during storage and transportation.
◊ Film Coating: Water based polyurethane emulsioin is used to coat plastic films for food, pharmaceutical packaging, enhancing barrier properties and printability.
◊ Carton Sealing: Strengthens carton flap adhesion, keeping packages securely closed.
◊ Offset Printing: Polyurethane dispersion enhances ink adhesion on paper for packaging boxes, delivering sharp, vibrant prints.
◊ Flexographic Printing: Optimizes ink transfer and adhesion on corrugated boards and flexible packaging materials.
◊ Digital Printing: Water-based polyurethane binder could Improve ink - substrate interaction for custom labels, ensuring color saturation and print durability.
Benefits
◊Eco - Friendly: Low VOC emissions meet environmental regulations, reducing the carbon footprint of packaging and ink production.
◊Cost - Effective: Waterborne polyurethane binder with fast drying cuts production time, increasing output. Long - lasting performance reduces product replacement needs, saving costs.
◊Quality Enhancement: Boosts packaging robustness and attractiveness. In inks, it ensures high - quality prints that attract consumers, elevating brand appeal.
◊Versatile: Water based polyurethane binder orks across substrates (paper, plastic, foil) and printing/coating processes (offset, flexographic, digital), simplifying supply chains.
◊Regulatory Compliance: Meets food contact and low - VOC standards, ensuring safety in packaging (food, pharmaceutical) and ink applications.
◊Durable: Waterborne polyurethane binder Resists environmental stress and mechanical damage, maintaining packaging and print quality throughout the product lifecycle.
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