GB1284646A - Manufacturing process for liquid developing agent for electrophotography - Google Patents
Manufacturing process for liquid developing agent for electrophotographyInfo
- Publication number
- GB1284646A GB1284646A GB4900/70A GB490070A GB1284646A GB 1284646 A GB1284646 A GB 1284646A GB 4900/70 A GB4900/70 A GB 4900/70A GB 490070 A GB490070 A GB 490070A GB 1284646 A GB1284646 A GB 1284646A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gelatine
- solvent
- particles
- agent
- gel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/12—Developers with toner particles in liquid developer mixtures
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/12—Developers with toner particles in liquid developer mixtures
- G03G9/13—Developers with toner particles in liquid developer mixtures characterised by polymer components
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Liquid Developers In Electrophotography (AREA)
Abstract
1284646 Gelatine dispersion RANK XEROX Ltd 2 Feb 1970 [4 Feb 1969] 4900/70 Heading C3H [Also in Division G2] In the production of a printing plate by deposition of gelatine toner from a liquid developer agent on to an electrostatic latent image, the agent is produced by cooling a 1-30% aqueous solution of gelatine to produce a gel, the gel is pulverized in 1-100 parts (per part of gel) of a solvent which is miscible with water but is a non-solvent for gelatine to produce a dispersion of gelatine particles, the gelatine particles are separated from the solvent, and the separated particles are dispersed in a carrier liquid in a concentration of 0À001-5%. The solvent may be methyl or ethyl alcohol or dimethyl or methylethyl ketone. The particles may be washed with further solvent before forming the dispersion. The carrier liquid may be cyclohexane, kerosene, gasoline, iso-octane, heptane, or hexane. The agent may also contain soybean oil as dispersant and rosin-modified phenolformaldehyde resin as fixing agent.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP834569 | 1969-02-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1284646A true GB1284646A (en) | 1972-08-09 |
Family
ID=11690611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4900/70A Expired GB1284646A (en) | 1969-02-04 | 1970-02-02 | Manufacturing process for liquid developing agent for electrophotography |
Country Status (4)
Country | Link |
---|---|
US (1) | US3755177A (en) |
CA (1) | CA925743A (en) |
DE (1) | DE2005057A1 (en) |
GB (1) | GB1284646A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428864A1 (en) * | 1978-06-15 | 1980-01-11 | Philips Nv | PROCESS FOR PRODUCING DEVELOPMENT SUSPENSIONS IN ELECTRO-PHOTOGRAPHIC FORM |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6255363B1 (en) | 1995-09-29 | 2001-07-03 | 3M Innovative Properties Company | Liquid inks using a gel organosol |
US5652282A (en) * | 1995-09-29 | 1997-07-29 | Minnesota Mining And Manufacturing Company | Liquid inks using a gel organosol |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1854061A (en) * | 1927-06-27 | 1932-04-12 | Pigache Pierre Gustave Adolphe | Method for decohering solid substances |
FR777569A (en) * | 1933-09-06 | 1935-02-23 | Improvements in the manufacture of materials containing gelatinous sizing and products thereof | |
US2197843A (en) * | 1935-10-07 | 1940-04-23 | Gerrit Hendrik Van Leeuwen | Process of impermeabilizing, tightening, or consolidating grounds and other earthy and stony masses and structures |
US2297691A (en) * | 1939-04-04 | 1942-10-06 | Chester F Carlson | Electrophotography |
US2527268A (en) * | 1944-10-30 | 1950-10-24 | Ilford Ltd | Production of photographic emulsions |
US2490749A (en) * | 1948-09-03 | 1949-12-06 | Eastman Kodak Co | Mixed grain photographic emulsions |
BE556138A (en) * | 1956-03-26 | |||
US3137630A (en) * | 1961-06-09 | 1964-06-16 | Eastman Kodak Co | Process for preparing a dry, finely divided, gelatin particle product |
-
1970
- 1970-02-02 GB GB4900/70A patent/GB1284646A/en not_active Expired
- 1970-02-03 US US00008414A patent/US3755177A/en not_active Expired - Lifetime
- 1970-02-03 CA CA073818A patent/CA925743A/en not_active Expired
- 1970-02-04 DE DE19702005057 patent/DE2005057A1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2428864A1 (en) * | 1978-06-15 | 1980-01-11 | Philips Nv | PROCESS FOR PRODUCING DEVELOPMENT SUSPENSIONS IN ELECTRO-PHOTOGRAPHIC FORM |
Also Published As
Publication number | Publication date |
---|---|
US3755177A (en) | 1973-08-28 |
CA925743A (en) | 1973-05-08 |
DE2005057A1 (en) | 1970-08-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |