Fatliquor – all kinds of soft leathers
GREIBOSOL AUP
GREIBOSOL AUP is a versatile, high-performance fatliquor based on a combination of ester sulphonates and natural fats, specifically developed as a solo fatliquor for all types of soft leather. Its carefully balanced formulation combines the excellent penetration and emulsion stability of ester sulphonates with the natural softness and fullness characteristics of natural fats, delivering a distinctive full, round feel that makes it equally suitable as a standalone fatliquoring solution across a broad range of soft leather applications.
GREIBOSOL AUP provides very good levelling and dyeing properties, ensuring a uniform and homogeneous leather surface that supports even, consistent dye uptake and reproducible colour results across the full hide. This makes it a particularly reliable choice for articles where colour levelness is a critical quality requirement alongside softness and handle.
The product demonstrates good resistance to electrolytes at normal working concentrations and can be added to the float undiluted or pre-diluted with water. Due to its thixotropic character, GREIBOSOL AUP should always be stirred thoroughly before dilution and use to ensure a homogeneous, well-dispersed emulsion.
Key Benefits
Characteristics
| Base | Combination of ester sulphonates and natural fats |
| Appearance: | Brown liquid |
| Chemical treatment | Sulphonated |
| pH of a 10 % solution | Approx. 8 – 9 |
| Charge | Anionic |
Properties
| Lightfastness | Good |
| Heat resistance | Good |
| Stability against | Resistant to electrolytes in usual working concentrations |
Application Examples
GREIBOSOL AUP is the preferred standalone fatliquor for all soft leather types wherever a full, rounded body, consistent softness, and reliable dyeing levelness across the full hide are the primary quality requirements.
For soft upper leathers, nappa, and garment leathers, GREIBOSOL AUP delivers the characteristic full, round feel and even surface lubrication that form the foundation of consistent softness and physical integrity in the finished leather, without the need for additional fatliquoring agents in standard applications.
In upholstery leather production, GREIBOSOL AUP supports uniform fat distribution and consistent softness across large hide surfaces, while its very good levelling properties ensure that colour is taken up evenly and reproducibly across the full hide, reducing the risk of shading or patchiness in the finished article.
For all soft leather applications where processing simplicity and consistent results are valued, GREIBOSOL AUP offers the particular advantage of being suitable as a sole fatliquoring agent, simplifying the fatliquor recipe and reducing the number of process steps without compromising the quality of the finished leather.
| Shoe upper leathers | 8 – 10 % | GREIBOSOL AUP (% based on shaved weight) |
| Soft Leathers | 12 – 15 % | GREIBOSOL AUP (% based on shaved weight) |
Legal Information
GREIBOSOL AUP has a shelf life of up to 12 months and is not sensitive to frost. Stir thoroughly before use.
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.