http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113201606-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-50 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C14C3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C14C1-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C14C1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C14C3-22 |
| filingDate | 2021-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113201606-B |
| titleOfInvention | A kind of production process of heavy metal-free tanned cow leather |
| abstract | The invention discloses a production process of heavy metal-free tanned cow leather, which comprises the following steps: gray bare hide → weighing ① → pre-liming → main deliming → softening → water washing → main tanning → synergistic tanning → standing → smoothing →Weighing ②→Treatment①→Oscillation and softening①; the treatment ① includes: softening ①→neutralization①→water washing①→filling①→greasing①→standing①→drying①; the pre-deliming, The main deliming process adopts degreasing agent, deliming agent and complexing agent; the main tanning process adopts amphoteric organic compound; the synergistic tanning process adopts phenolic synthetic tanning agent; the neutralization ① process adopts amphoteric sulfonic acid group Fatliquor; described filling ① process adopts sulfone type synthetic tanning agent; described fatliquoring ① process adopts cationic fatliquor; described degreasing agent is nonionic surfactant; described deliming agent is ammonium salt and organic acid The mixture; the complexing agent is a polyphosphate complex. |
| priorityDate | 2021-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.