← Back to Patent Explorer
JPS588769A Expired / Lapsed JP ⏱️ 0.0 years remaining

Ink composition for inkjet recording

Assignee: Ricoh Co Ltd
•
Filing: 1981-07-08
•
Granted: —
•
Expires: 2001-07-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE:To provide the titled compsn. capable of forming high quality images consistently for a long period without causing clogging of nozzle or filter, prepared by using a specified alkylaminophenol deriv. dye as a recording agent. CONSTITUTION:The ink compsn. is prepared by mixing an alkylaminophenol deriv. dye of the formula (where R1-4 are H, methyl or ethyl), a solvent (e.g., alkyl alcohol or cellosolve) and a thickener (e.g., phenolic resin or polyamide resin). The resultant compsn. shown good adhesion to a recording sheet with a hydrophobic and highly smooth surface and produces prints with excellent color definition ( in magenta color), for it contains an oil dye as a recording agent.

Inventors

  • 👤 Tomoyuki Yamaguchi
  • 👤 山口 友行
  • 👤 Tadashi Fujii
  • 👤 藤井 唯士
  • 👤 Seiichi Sakuma
  • 👤 削久間 清一

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-23 20:01
CPC Classifications
—

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag