Warehousing and sorting |
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In the raw material area the skins are preserved in salt,
stored in controlled cool rooms and before processing, presorted for quality
and weight |
Soaking |
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The skin is soaked to remove dirt and salt. |
De-Fleshing and
Liming |
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During this process tissue, flesh and fat remnants are
removed by a roller mounted knife then by adding lime and sulphur compound
the hair is removed from the skin |
Bating, pickling, tanning |
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During bating and pickling the skins are treated with
acid and salt in preparation for tanning. During tanning the skin fibres
absorb the tanning agents. That's when the skin becomes leather. |
Samming |
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During this process water is removed. |
Splitting |
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In order to achieve an even specified thickness the leather
is reduced in substance. The resulting split-leather can than be processed
further as suede. |
Skiving |
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The grain leather is brought to an even thickness. Irregularities
are removed from the reverse side and the leather is separated into colour-batches. |
Sorting |
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The leather is sorted into various quality grades. |
Neutralising, filling out,
dyeing and greasing |
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The acid resulting from the tanning process is neutralized.
Dyeing than takes place, where appropriate with anilin-dye-stuffs. The greasing
procedure will finally achieve the correct softness |
Drying |
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Two methods are used to dry leather. The vacuum process
during which moisture is removed by suction and the hanging process, when
leather is hung and taken through ovens. |
Staking |
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Following drying the leather is mechanically staked in
order to soften it. Further processes take place in preparation for finishing. |
Finishing |
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Here the leather is given its final surface treatment
and look. Through processes of base coat, colouring, embossing, ironing
the leather becomes, depending on the demands of fashion, matt or shiny,
two-tone or uni-coloured, smooth or grained. The art of finishing lies in
working in wafer-thin layers without disturbing the natural look of the
leather and its characteristics such as suppleness and breathability. |
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