http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113278741-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C14C11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C14B1-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C14C9-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C14C9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C14B1-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C14C11-00 |
| filingDate | 2021-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113278741-B |
| titleOfInvention | Preparation method of thin undenatured collagen sheet material |
| abstract | A preparation method of thin type undenatured skin collagen sheet material is characterized in that the thickness of a naked skin after unhairing and liming is adjusted by a skin splitting machine, then the naked skin is delimed by a deliming method of conventional leather processing, and then is treated by an expanding agent until the naked skin is uniformly expanded to be semitransparent; after the expansion is finished, the dehydrating agent is replaced after soaking for at least 30min, and the dehydrating agent is soaked in the dehydrating agent for 3-6 times in the dehydrating process; after dehydration, the sheet material is extruded by a through wringing machine and then is shaved by a shaving machine to obtain the thin type collagen sheet material with the thickness of 0.3-0.5 mm. The method uses a dehydrating agent to dehydrate in the expansion state of the naked skin, so that collagen fiber bundles are dispersed and maintain a porous structure, and uses the characteristic of easy volatilization of the dehydrating agent to prevent the thermal denaturation of the skin in the shaving process, thereby obtaining the untanned thin skin collagen sheet material. The product retains the natural structure of collagen in the leather block, and can be used in the fields of leather making, biomedicine, food and the like. |
| priorityDate | 2021-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.