Difference between revisions of "Lime fleshings - Glue-stock"
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| − | When [[Fleshing - Making of leather|fleshing]], the lime fleshings (also called glue-stock), which also contains | + | When [[Fleshing - Making of leather|fleshing]], the lime fleshings (also called glue-stock), which also contains chemicals from the [[Liming - Leather Tanning|liming stage]] and water is removed from the skin. This material is approx. 10 - 30% of the total weight of the [[rawhide]]. |
| − | + | This stock was used to manufacture glues in the past and hence the term "glue stock". However, this is scarcely needed today. Nowadays, glue stock is sold for the production of gelatine. This is used in pharmaceutical products (gelatine capsules) and foodstuffs (gummy bears, sausages etc.). | |
Some [[tannery|tanneries]] are working to separate and sell the fats and proteins, or to use them for energy production (biogas). | Some [[tannery|tanneries]] are working to separate and sell the fats and proteins, or to use them for energy production (biogas). | ||
Revision as of 15:03, 5 February 2017
When fleshing, the lime fleshings (also called glue-stock), which also contains chemicals from the liming stage and water is removed from the skin. This material is approx. 10 - 30% of the total weight of the rawhide.
This stock was used to manufacture glues in the past and hence the term "glue stock". However, this is scarcely needed today. Nowadays, glue stock is sold for the production of gelatine. This is used in pharmaceutical products (gelatine capsules) and foodstuffs (gummy bears, sausages etc.).
Some tanneries are working to separate and sell the fats and proteins, or to use them for energy production (biogas).
Video about the leather production
The leather production in a modern tannery.
Additional information
a kotori web solution