Process for the production of leather base material
OwnerEdmond D. Kreckeinventor
Life of this patent
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Abstract
Leather waste is cut up into strips or portions and then subjected to working in order to break up the strips or portions into fine material and individual fibers, the fibers then being separated from the fine material. Alternatively, the strips or portions may be worked in order to loosen cohesion between the fibers, thereby producing bunches thereof. The bunches are at least partially broken up into individual fibers by means of a solvent which is then removed. Additives may be added in order to impart further properties to the material.
Claims37
A process for the production of leather base material comprising:
- (a) dividing leather waste into pieces;
- (b) subjecting the pieces to mechanical working to cause the pieces to break up into fine material and individual fibers, said fibers being generally in the range from 2 to 14 mm in length;
- (c) separating the fibers from the fine material;
- and
- (d) incorporating said fibers into a leather base material.
A process for the production of leather base material comprising:
- (a) dividing leather waste into pieces;
- (b) subjecting the pieces to mechanical working, thereby to loosen cohesion between the fibers and produce bunches of fibers, said fibers being generally in the range from 2 to 14 mm in length;
- (c) at least partially breaking up the bunches into individual fibers by means of a solvent;
- (d) removing the solvent;
- and
- (e) incorporating said fibers into a leather base material.
A recycled leather base material produced by taking leather waste;
- dividing the waste into pieces of reduced size;
- subjecting the pieces to a mechanical working action thereby to at least weaken the fiber structure of the pieces, such as to define fibers thereof having lengths generally in the range from 2 to 14 mm;
- removing said fibers as the product;
- and incorporating said fibers into a leather base material.
Dependencies are inferred from the claim text.