| Patents for D01C 3 - Treatment of animal material, e.g. chemical scouring of wool (446) |
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| 01/08/1992 | CN2092554U Rabbit wool modification equipment using dc cold plasma |
| 12/25/1991 | CN1015188B Silk extraction method |
| 11/06/1991 | CN1055966A 20 to 60-count camel's hair yarn and making method thereof |
| 10/30/1991 | CN1055776A Process for making hair fiber from angora rabbit hair |
| 10/09/1991 | EP0450843A2 Process for making fibres from animal hair |
| 03/27/1991 | EP0378616A4 Animal hair solvent treatment process |
| 03/27/1991 | CN1050232A Chemical process technique for human hair |
| 12/19/1990 | CN1047784A Method for killing silkworm pupae |
| 11/21/1990 | CN1047123A Natrual silk fibres and method for refining fabrics made from such fibres |
| 11/21/1990 | CN1047120A Technology for wool scouring, fearnaughting and carding |
| 09/26/1990 | EP0388854A2 Collagen fiber sheet |
| 09/07/1990 | WO1990010099A1 Single-bath degumming and decolorizing of natural silks |
| 09/06/1990 | DE3906045A1 Einbadiges entbasten und entfaerben von naturseiden One-bath degumming and bleaching natural silk |
| 09/05/1990 | CN1045136A Single-bath degumming and decolour of silk |
| 08/27/1990 | CA2011013A1 Single-bath degumming and decoloring of natural silk |
| 07/25/1990 | EP0378616A1 Animal hair solvent treatment process |
| 07/25/1990 | CN1044134A Treating for wool of goat by chloride lime |
| 07/11/1990 | CN1043756A Liquid-ammonia method for denatured treatment of goat wool |
| 05/23/1990 | CN1008126B Charcoal-cleaning technology of wool |
| 04/04/1990 | CN1007437B Process for manufacturing deformed silk yarn |
| 03/07/1990 | CN1040229A Animal hair solvent treatment process |
| 02/14/1990 | CN1039630A Animal hair treatment process |
| 01/24/1990 | CN2051637U Liquid ammonia denaturing apparatus for cashmere |
| 12/27/1989 | CN1038317A Moth silk extracting method |
| 12/14/1989 | WO1989012121A1 Animal hair solvent treatment process |
| 05/24/1989 | CN1004289B Process for resucitating animal fibers |
| 11/30/1988 | CN88104020A New charcoal-cleaning technology of wool |
| 08/24/1988 | CN87215498U Awl shaped hole collecting reserve device |
| 12/16/1987 | CN87103669A Detergent composition for washing rough feathers |
| 09/02/1987 | CN86101130A Process for manufacturing deformed silk yarn |
| 10/22/1986 | CN85103243A Process for resucitating animal fibers |
| 08/13/1986 | CN85100524A Degumming technology of natural fiber |
| 12/17/1985 | US4558574 Wool washing and recovery of wool wax and water therefrom |
| 10/23/1985 | EP0159082A1 Process for treating wool |
| 08/06/1985 | US4533359 Descaling by surface oxidation and proteolytic enzyme treatment ina salt solution; process control; shrinkage inhibition |
| 03/20/1985 | EP0134267A1 The process for modifying animal fibers |
| 03/21/1984 | EP0103379A1 Method and apparatus for washing wool |
| 09/14/1982 | CA1131408A1 Process for preparing soluble collagen fibres |
| 08/10/1982 | US4343619 Method of preparing a scoured animal hair material |
| 10/20/1981 | US4295894 Defatting, dehairing skins; alkali sulfate stabilization; neutralization; dissolving in acid |
| 03/18/1980 | CA1073737A1 Collagen compositions and the method of preparing the same |
| 01/22/1980 | US4185011 Process for the production of collagen fibers |
| 09/18/1979 | US4168143 Process and apparatus for the purification and re-use of wool-scouring liquors |
| 02/27/1979 | US4141207 Process for producing curl shrunk silk yarn |
| 09/26/1978 | US4117171 Antiblock agent comprising mineral oil or fatty acid esters of polyols |
| 04/26/1977 | US4019956 Plumping and predigesting in sodium perborate and urea, dissolving with bacterial protease |