Invention Grant
- Patent Title: Toner and manufacturing process therefor
-
Application No.: US12083502Application Date: 2006-11-06
-
Publication No.: US07862978B2Publication Date: 2011-01-04
- Inventor: Daniel Patrick Morris , Martin Russell Edwards , Mohammed Nawaz , Oliver Callaghan , Simon Pickard
- Applicant: Daniel Patrick Morris , Martin Russell Edwards , Mohammed Nawaz , Oliver Callaghan , Simon Pickard
- Applicant Address: GB Manchester
- Assignee: Fujifilm Imaging Colorants Limited
- Current Assignee: Fujifilm Imaging Colorants Limited
- Current Assignee Address: GB Manchester
- Agency: Morgan Lewis & Bockius LLP
- Priority: GB0522650.1 20051107
- International Application: PCT/GB2006/004142 WO 20061106
- International Announcement: WO2007/052062 WO 20070510
- Main IPC: G03G9/00
- IPC: G03G9/00

Abstract:
The invention provides a process for the manufacture of a toner which comprises the steps of: a) providing a latex dispersion containing primary resin particles and surfactant; b) providing a colorant dispersion containing primary colorant particles and surfactant; c) optionally providing a wax dispersion containing primary wax particles and surfactant; d) providing at least one carboxy functional compound of Formula (1), which may be in acid, salt and/or complex form: wherein R is a carbocyclic or heterocyclic radical which may be optionally substituted and Z1 is a bond or linker group and wherein the amount of carboxy functional compound of Formula (1) provided is greater than 3% by weight, the amount of carboxy functional compound being calculated according to the following equation: amount of carboxy functional compound ( % weight ) = 100 × weight of carboxy functional compound ( weight of carboxy functional compound + weight of solids content of latex , colorant and optional wax dispersions + weight of any additional surfactant ) e) mixing the latex dispersion, colorant dispersion, optional wax dispersion and said carboxy functional compound; and f) causing the particles in the mixture to associate. The process advantageously may produce a toner of small size and narrow particle size distribution. The present invention also provides a toner manufactured by the process.
Public/Granted literature
- US20090162774A1 Toner and Manufacturing Process therefor Public/Granted day:2009-06-25
Information query