Processes for removing impurities from textile materials
AssigneeBruckner Apparatebau GmbH
InventorManfred Schuierer
Life of this patent
Estimating the term…
Abstract
Water or organic solvent soluble impurities are removed from textile materials at a treatment zone by applying to the material a first liquid capable of dissolving the impurities, following which a second liquid immiscible with the first liquid is applied to the material to expel the first liquid and the dissolved impurities. The two liquids are then separated and the material is removed from the treatment zone and dried without further contact with the first liquid.
Claims17
A process of removing impurities from textile material comprising first applying to said material a first liquid in which the impurities are soluble;
- subsequently expelling said first liquid and impurities dissolved therein from said material by applying to said material a second liquid immiscible with the first and having a specific gravity different from that of the first liquid;
- maintaining said material out of contact with said first liquid following the expulsion of the latter from said material;
- and separating said first and second liquids in liquid form.
A process of removing water soluble impurities from textile material comprising first applying to said material water in an amount between 50%-250% of the weight of said material;
- subsequently expelling said water and impurities dissolved therein from said material by applying to said material an organic solvent immiscible with water and having a specific gravity greater than that of water;
- and separating said water and organic solvent in liquid form.
Dependencies are inferred from the claim text.