- Fatliquoring is a
process of coating the surface of the leather with a thin layer of
oil in the form of an emulsion. Fatliquor is oil in water emulsion.
- Fatliquoring is the
last of the wet processes involved in the manufacture of leather.
- The preparation of
the fatliquor emulsion which is to be fed into the drum containing
the leather plays an important part in determining the manner in
which the fatliquor will exhaust and is deposited in the leather.
- The Amphoteric
Fatliquor was prepared by rapeseed oil, 1,2-ethylenediamine and
influences the physical properties of the leather, such as
extensibility, tensile strength, wetting properties, waterproofness
and permeability to air and water vapour.
- Fat-liquors help to
prevent the loosening of leather grain and ugly appearance of chrome
tanned leather after drying.
- Companies such as
Colorantes Industriales have developed new ranges of fatliquoring
agents, based on state of the art synthesis and formulation
- The processes after
fatliquoring also affect the performance of the finished leather and
fatliquoring has a big impact in the drying and further conditioning
of the leather prior to the mechanical operations.
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