Softer leathers with new Stahl fatliquors
Specialty chemicals provider Stahl has launched six new Corilene fatliquors.
Corilene HLG is recommended for fatliquoring double faced leathers at all stages of production either alone or in combination with Corilene SIT. It can also be used for brush fatliquoring of fur and exotic skins and for the wetting back of crust leather, the improvement of buffing properties and the production of non-greasy lustre effects on suede. The result in all applications, Stahl claims, is a beautiful, soft, mild, elastic handle.
Corilene HLG can also be used as a stabiliser in unstable fatliquor mixtures to stimulate through fatliquoring and on a range of hides and skins in the pickling and chrome tanning bath, where its acid and electrolyte stability creates uniform softness.
The company then went on to produce a fog-optimised version, Corilene SLG. Its main use is in pickling, as it disperses natural grease, especially when applied to greasy hides or heavy skins. It is also recommended for use on New Zealand sheepskins, for double face production in tanning baths and for ensuring chrome dispersion and uniform softness so that there is no hard backbone. Corilene SLG prevents spew formation which can spoil the appearance of hides and skins.
In cases where softness with a waxy touch is required, Corilene SIT is the suggested solution. It can be used for high-quality furniture leather, for garments and for gloves, for which it produces a softly milled leather with a uniform grain. It can also be used in the production of shoe suede leather.
Corilene FM-SIT is another fog-optimised version and can be used as a sole fatliquor for chrome and chrome-free automobile leathers, offering softness, fullness and a round, waxy handle.
Corilene KW is used to avoid heat yellowing and other light fastness problems for pastel and white leathers and is particularly suitable for the production of white or lightly-coloured upholstery, automobile, glove and garment leathers. It can also be used for soft upper leathers and sport shoes.
The last in the new series is Corilene WSL, used to produce soft, special lightweight leather and to improve tear strength. It softens hard grains such as goat and buffalo when used early in the manufacturing process, for instance when pickling, tanning, re-chroming and neutralising.
Corilene WSL is often used in combination with other fatliquors to produce leather for garments, gloves and upholstery, especially when deodorising is an important requirement.
