Water-insoluble fatliquor
GREIBOSOL K
GREIBOSOL K is a water-insoluble fatliquoring additive based on neatsfoot oil, supplied as a yellow oil at an active substance content of almost 100%. It is specifically designed for use as an additive in combination with a suitable water-soluble fatliquoring agent and is not intended for standalone application. The desired effect on the leather is directly influenced by the quantity used, giving tanners precise control over the final handle and surface character of the finished leather.
Neatsfoot oil is a non-drying natural oil that remains liquid at room temperature due to its composition of glycerides of oleic acid, allowing it to penetrate readily into the leather fibre structure and deliver a characteristic full, well-nourished handle that water-soluble fatliquors alone cannot replicate. The addition of GREIBOSOL K to a water-soluble fatliquor system enables a significant adjustment of the surface lubrication and handle character of the finished leather, from a drier, firmer feel at lower addition levels to a distinctly rich, nourishing handle at higher dosing levels.
GREIBOSOL K imparts a full and well-nourished handle to mineral-tanned and combination-tanned leathers, providing the natural conditioning and lubrication of neatsfoot oil throughout the fibre structure without risk of drying out or hardening of the leather over time. Its excellent light fastness and very good heat resistance make GREIBOSOL K suitable for a broad range of leather types and quality requirements.
GREIBOSOL K should be stirred into the water-soluble fatliquor first, with the exact quantities determined by the required effect, before water at 60°C is added to the mixture under stirring to form the working emulsion.
Key Benefits
Characteristics
| Base | Neatsfoot oil |
| Appearance | Yellow oil |
| Chemical treatment | Sulphated |
| Concentration | Almost. 100 % |
| pH of a 10 % emulsion | – |
| Charge | – |
Properties
| Light fastness | Excellent |
| Heat resistance | Very Good |
| Mineral tanning floats | Excellent |
Application Examples
GREIBOSOL K is the preferred neatsfoot oil additive wherever a natural, full, and well-nourished handle character needs to be added to or enhanced within an existing water-soluble fatliquor system for mineral-tanned and combination-tanned leathers.
In multi-component fatliquor systems for upper leathers, upholstery, and soft leather goods, GREIBOSOL K is incorporated into the water-soluble fatliquor component to enrich the overall handle profile of the finished leather. The surface lubrication effect can be varied across a wide range by adjusting the proportion of GREIBOSOL K within the fatliquor mixture, allowing the tanner to achieve precisely the desired balance between a firm, controlled surface and a rich, well-nourished, natural feel.
For mineral-tanned and combination-tanned leathers where a particularly full and nourishing handle is the target quality, GREIBOSOL K delivers the characteristic conditioning effect of neatsfoot oil — a natural, time-proven fatliquoring raw material — in a form that can be seamlessly integrated into modern multi-component fatliquor emulsion systems without compromising emulsion stability or process consistency.
Method of diluting: GREIBOSOL K should be stirred into the water-soluble fatliquor, the exact quantities depend on the required effect. Water at 60°C should be added by stir ring the mixture.
| Boxcalf | 4.5 % | GREIBOSOL LSA
GREIBOSOL K |
| Side leathers | 4,0 %
2,0 % 0,5 – 1,0 % |
GREIBOSOL WFS
GREIBOSOL SPA GREIBOSOL K |
Legal Information
GREIBOSOL K has a shelf life of up to approximately one year. The pour point is approximately –10°C. Store in sealed original containers, protected from extreme temperatures.
The information contained in this publication is based on our current knowledge and practical experience. It does not relieve the user of the responsibility to conduct their own tests and assessments, particularly with regard to any influences that may arise during the processing and application of our products. No legally binding guarantee of specific properties or suitability for a particular purpose can be inferred from the information provided herein. It is the sole responsibility of the recipient to observe any applicable intellectual property rights as well as all relevant laws and regulations.