Method of preparing solutions from keratinous protein materials based on hydrolysis of the keratinous protein material using a strong organic base, or a mixture of organic bases or their solutions provided that the resulting product obtained by the said alkaline conditions is water soluble. At least one amine, the boiling point of which at normal pressure is below 200 °C, is used as strong organic base. The at least one amine can be selected from the group comprising cyclohexylamine, isopropylamine, diisopropylamine, butylamine and diethylamine.
The present invention relates to a device and method for improving felting properties of animal fibres by plasma treatment. The invention disclosed here includes a dielectric barrier discharge plasma source, preferably a diffuse coplanar surface dielectric barrier discharge plasma source with at least two systems of electrically conductive electrodes (2) and (3) that are situated inside of the dielectric body (4) and are situated on the same side of the layer (1) pelt of the loose animal fibres or the fur-bearing side of the animal layer (1) pelt affected by the plasma layer (5) generated above the portion of the surface (6) of the dielectric body (4). The present invention relates also to a method for improving felting properties of animal fibres, which method consists of affecting such animal fibres with electrical plasma generated at the gas pressure from 1 kPa to 500 kPa with the plasma process gas containing oxygen and/or water vapor.
D06M 10/02 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements ultrasonic or sonicCorona discharge
D04H 1/08 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated man-made fibres and hardened by feltingFelts or felted products
