Synthetic fatliquor – soft leathers with full round feel
GREIBOSOL VPS
GREIBOSOL VPS is a high-efficiency synthetic combining fatliquor based on high molecular saturated hydrocarbons, sulphonated for optimised performance, and supplied as a yellowish pourable paste. As the lower-concentration counterpart to GREIBOSOL SPA, GREIBOSOL VPS is available at an active substance content of approximately 50%, offering greater ease of handling and more direct dosing flexibility for tanneries that prefer a lower-concentration formulation without any compromise in performance quality.
GREIBOSOL VPS delivers the same excellent light fastness, excellent heat resistance, and individually adjustable softness and surface effects as GREIBOSOL SPA, making it equally well suited for white and pastel shade leathers, garment leathers, and shoe upper leathers where high fastness performance and precise fatliquor recipe control are essential requirements.
Individual softness and surface effects can be achieved by adjusting the single components of the fatliquor mixture, and very finely dispersed solutions can be obtained by melting the product prior to emulsification before stirring water at 60°C into the product.
Key Benefits
GREIBOSOL SPA and GREIBOSOL VPS share the same formulation basis and deliver identical performance properties including excellent light fastness and heat resistance. GREIBOSOL SPA is available at an active substance content of approximately 64%, while GREIBOSOL VPS is available at approximately 50%, offering greater ease of handling and more direct dosing for different production preferences. Both variants are interchangeable; the choice between them is determined solely by the preferred concentration level and dosing practice of the individual tannery.
Characteristics
| Base | High molecular saturated hydrocarbons |
| Appearance | Yellowish pourable paste |
| Concentration | Approx. 50 % |
| Chemical treatment | Sulphonated |
| pH of a 10 % solution | 8 – 10 |
| Charge | Anionic |
Properties
| Light fastness | Excellent |
| Heat resistance | Excellent |
| chrome tanning floats | Good in mineral floats |
Application Examples
GREIBOSOL VPS is the preferred choice for tanneries seeking the full performance profile of GREIBOSOL SPA in a lower-concentration, more directly dosable formulation.
For white and pastel shade leathers in garment, footwear, and accessories production, GREIBOSOL VPS delivers the same excellent fastness performance and adjustable softness profile as GREIBOSOL SPA, with the practical advantage of a lower active substance content that simplifies dosing and emulsification in daily production.
In the production of garment leathers and shoe upper leathers, GREIBOSOL VPS provides the combining fatliquor base for precisely tailored multi-component fatliquor systems, where individual softness levels and surface effects can be fine-tuned through component adjustment to meet the specific requirements of the article and end use.
For maximum emulsion fineness and distribution uniformity, GREIBOSOL VPS should be melted prior to emulsification before stirring water at 60°C into the product.
| Nappa sides | 5,6 %
6,0 % |
GREIBOSOL VPS GREIBOSOL SFH
(% based on shaved weigh ) |
| Soft side upper leather | 4,2 %
4,0 % 1,0 % |
GREIBOSOL VPS
GREIBOSOL WFS GREIBOSOL WU (% based on shaved weight) |
Legal Information
GREIBOSOL VPS has a shelf life of up to 12 months and is not sensitive to frost.
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.