公开(公告)号：US2469787A

公开(公告)日：1949-05-10

申请号：US43462542

申请日：1942-03-13

申请人： CARL RIEHS

发明人： CARL RIEHS

IPC分类号： C14C1/04

CPC分类号： C14C1/04

公开(公告)号：US2326798A

公开(公告)日：1943-08-17

申请号：US25671939

申请日：1939-02-16

申请人： WALLERSTEIN CO INC

发明人： JULIUS PFANNMULLER

IPC分类号： C14C1/04

CPC分类号： C14C1/04

公开(公告)号：US1957020A

公开(公告)日：1934-05-01

申请号：US55537031

申请日：1931-08-05

申请人： NIACET CHEMICALS CORP

发明人： REED HERBERT C

IPC分类号： C14C1/04

CPC分类号： C14C1/04

公开(公告)号：US1794920A

公开(公告)日：1931-03-03

申请号：US21576327

申请日：1927-08-26

申请人： CHEM FAB POTT & CO

发明人： FRIEDRICH POSPIECH

IPC分类号： C14C1/04

CPC分类号： C14C1/04 ,  Y10S516/03

公开(公告)号：US11981970B2

公开(公告)日：2024-05-14

申请号：US17494580

申请日：2021-10-05

申请人： Hyundai Motor Company ,  Kia Corporation

发明人： Sung Hoon Lee ,  Ha Young Yoon ,  Myoung Ryoul Lee ,  Seung Jin Lee ,  Eun Ju Noh

IPC分类号： C14C9/02 ,  C14C1/04 ,  C14C1/06 ,  C14C3/06 ,  C14C3/10 ,  C14C11/00

CPC分类号： C14C9/02 ,  C14C1/04 ,  C14C1/06 ,  C14C3/06 ,  C14C3/10 ,  C14C11/00

摘要： Disclosed are a leather odor removal composition, a method of manufacturing leather with reduced odor using the same, and leather manufactured through the method. The method of reducing leather odor may include using a composition including a filler and a softening mixture.

公开(公告)号：US11873536B2

公开(公告)日：2024-01-16

申请号：US18015515

申请日：2021-07-20

申请人： BEKEN ITALIA S.R.L.

发明人： Mirko Negretto

IPC分类号： C14C3/28 ,  C14C1/04 ,  C14C1/06 ,  C14C1/08 ,  C14C3/06 ,  C14C3/10

CPC分类号： C14C3/28 ,  C14C1/04 ,  C14C1/065 ,  C14C1/08 ,  C14C3/06 ,  C14C3/10

摘要： The present invention relates to a process for the tanning of animal hides characterised, compared to currently adopted processes, by the non-adoption of the step known in the industry as “pickling”. The invention also concerned hides tanned by said process.

公开(公告)号：US20230358723A1

公开(公告)日：2023-11-09

申请号：US18040312

申请日：2021-08-03

申请人： SECURITY MATTERS LTD.

发明人： Yifat BAREKET ,  Michal FIRSTENBERG ,  Hagit SADE ,  Zeren BROWNE ,  Tehila NAHUM ,  Nataly TAL ,  Mor KAPLINSKY ,  Dana GASPAR ,  Haggai ALON ,  Ron DAFNI ,  Chen NACHMIAS ,  Avital TRACHTMAN ,  Maria CHUCHAEV ,  Nadav YORAN ,  Michal BURCK ZALTZMAN

IPC分类号： G01N33/44 ,  C14B17/00 ,  G01N23/223 ,  D06H1/00 ,  C14C1/04

CPC分类号： G01N33/447 ,  C14B17/005 ,  G01N23/223 ,  D06H1/00 ,  C14C1/04 ,  G01N2223/076

摘要： A process is provided for marking leather manufactured from hide with an XRF-identifiable marker, the process comprising treating a hide or processed leather with a formulation comprising at least one XRF-identifiable marker to embed said marker in the hide or processed leather, to thereby obtain a marked hide or marked leather, wherein the XRF-identifiable marker is not a native material to a hide or leather or involved in a process for its manufacturing.

公开(公告)号：US11040890B2

公开(公告)日：2021-06-22

申请号：US16708002

申请日：2019-12-09

申请人： Zhuangdou Zhang

发明人： Zhuangdou Zhang

IPC分类号： C14C3/32 ,  C02F1/00 ,  C14C1/04 ,  C14C1/08 ,  C14C3/06 ,  C14C3/22 ,  C14C3/28 ,  C14C9/02 ,  C02F103/24

摘要： A recycling process for achieving near-zero emissions of tannery effluent is characterized in that effluent recycling is carried out independently in soaking, liming, re-liming, de-liming bating, pickling chrome tanning, re-tanning, neutralizing, and dyeing procedures. The effluents in the above procedures can be recycled in each step. This process greatly reduces effluent discharge and helps solve the problem of tanning pollution. The process also improves the quality of the finished leather, effectively decreases loose grain rate and increases compactness and fullness of the finished product. The project can reduce chemical material consumption by 15%-55%. For example, the consumption of chromium powder can be reduced up to 65%. Consumption of other chemical materials can be reduced by more than 90%, while certain chemical materials can be essentially completely conserved.

公开(公告)号：US10260115B2

公开(公告)日：2019-04-16

申请号：US15347755

申请日：2016-11-09

申请人： Zhuangdou Zhang

发明人： Zhuangdou Zhang

IPC分类号： C14C3/32 ,  C14C3/00 ,  C02F1/00 ,  C14C1/06 ,  C14C1/08 ,  C14C1/04 ,  C14C5/00 ,  C14C9/02 ,  D06P3/32 ,  C14C3/16 ,  C14C3/06 ,  C14C1/00 ,  C14C3/22 ,  C14C3/28 ,  C02F103/24

摘要： A process for leather production from a raw animal hide includes the steps of pre-soaking, soaking, unhairing and liming, re-liming, deliming and bating, pickling and tanning, degreasing, re-tanning, neutralizing, dyeing and fatliquoring, and washing the processed hide. Waste liquid is collected from at least one of the foregoing steps is recycled to at least one of the foregoing steps. The collected waste liquid can be recycled to the same step, to a different step, or to two of more steps in the process.

公开(公告)号：US09938592B1

公开(公告)日：2018-04-10

申请号：US15017603

申请日：2016-02-06

申请人： Matthew Richards

发明人： Matthew Richards

IPC分类号： C14C3/08 ,  C14C1/04 ,  C14C1/08 ,  C14C1/06

CPC分类号： C14C3/08 ,  C14C1/04 ,  C14C1/08 ,  C14C3/04

摘要： A liquid smoke tanning method uses liquid smoke as a tanning agent for tanning an animal skin, such as a hide or fur. The liquid smoke is used a natural source of aldehydes, which are commonly used in the tanning process and known to introduce toxicity into the animal skin. After the skin is prepared and cleaned for tanning, it is tanned in a liquid smoke solution, which may also include alum in an alternative embodiment. The liquid smoke is efficacious for crosslinking collagen proteins in the animal skin during the tanning process. The liquid smoke provides substantially the same collagen crosslinking capacity of aldehydes such as glutaraldehyde, formaldehyde, or glyoxol. The liquid smoke is, however, organic and does not contain the level of toxins found in chemically produced aldehydes. After the tanning, the skin is dried through known means for production as an organic, nontoxic leather.