{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11473222","patent":{"patent_number":"US-11473222","title":"Copper ion-complexed poly gamma-glutamic acid/chitosan/cotton blended antibacterial knitted fabric and preparation method thereof","assignee":null,"inventors":[],"filing_date":"2021-07-01T00:00:00.000Z","publication_date":"2022-10-18T00:00:00.000Z","cpc_codes":["G05B"],"num_claims":8,"abstract":"A copper ion-complexed poly gamma-glutamic acid (γ-PGA)/chitosan (CS)/cotton blended antibacterial knitted fabric and a preparation method includes chitosan that is crosslinked with poly gamma-glutamic acid, then a copper-ammonia complex ion solution is added to prepare a spinning solution. The spinning solution is wet spun and then stretched, washed with water, finished, washed with water, and dried to get copper ion-complexed poly gamma-glutamic acid/chitosan composite fibers. The blended antibacterial knitted fabric is then prepared by using cotton fiber yarns and the composite fibers. There is a very high coordination coefficient between carboxyl groups of gamma-PGA and amino groups of CS, so the structure is stable. Poly-gamma glutamic acid can be used as water-retaining agent and heavy metal ion adsorbent, which can increase the loading rate of copper ions."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Copper ion-complexed poly gamma-glutamic acid/chitosan/cotton blended antibacterial knitted fabric and preparation method thereof","description":"A copper ion-complexed poly gamma-glutamic acid (γ-PGA)/chitosan (CS)/cotton blended antibacterial knitted fabric and a preparation method includes chitosan that is crosslinked with poly gamma-glutami","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11473222","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11473222","citation_suggestion":"Patentable. \"Copper ion-complexed poly gamma-glutamic acid/chitosan/cotton blended antibacterial knitted fabric and preparation method thereof\" (US-11473222). https://patentable.app/patents/US-11473222","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11473222","json":"https://patentable.app/api/llm-context/US-11473222","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T03:23:11.853Z"}