http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111040225-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2301-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J7-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F251-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F251-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F222-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J7-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-50 |
| filingDate | 2019-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111040225-B |
| titleOfInvention | Repeatedly erasable anti-counterfeiting film based on photonic crystal structural color and preparation method and application thereof |
| abstract | The invention discloses a rewritable anti-counterfeiting film based on photonic crystal structural color and a preparation method and application thereof. Soaking a photonic crystal film of cellulose nanocrystals in a mixed solution of ionic liquid methacryloyloxyethyl trimethyl ammonium chloride, a cross-linking agent, an initiator and absolute ethyl alcohol, performing illumination polymerization, covering the anti-counterfeiting film with a hollow patterned polyester film, and dropwise adding a solution containing ClO 4 ‑ 、Tf 2 N ‑ Or PF 6 ‑ At least one kind of hydrophobic anion solution to obtain a structural color anti-counterfeiting film loaded with a hidden pattern in a natural state, and the structural color anti-counterfeiting film responds to complete corresponding pattern information under the condition of water jet excitation; the anti-counterfeiting film is soaked in a soluble chloride solution, and then the hidden pattern can be wiped off. The invention utilizes the interchange of hydrophobic ions and hydrophilic ions to prepare the anti-counterfeiting film which has high sensitivity, reversible erasing and writing and showing and hiding functions and certain mechanical strength, and realizes the wiping and recoding of information. |
| priorityDate | 2019-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.