FR2375046A1 - Elimination of water from printing ink - by passing thin film of ink through a high frequency electromagnetic field - Google Patents

Elimination of water from printing ink - by passing thin film of ink through a high frequency electromagnetic field

Info

Publication number
FR2375046A1
FR2375046A1 FR7638471A FR7638471A FR2375046A1 FR 2375046 A1 FR2375046 A1 FR 2375046A1 FR 7638471 A FR7638471 A FR 7638471A FR 7638471 A FR7638471 A FR 7638471A FR 2375046 A1 FR2375046 A1 FR 2375046A1
Authority
FR
France
Prior art keywords
ink
water
thin film
high frequency
printing ink
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.)
Granted
Application number
FR7638471A
Other languages
French (fr)
Other versions
FR2375046B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CONTROLE AUTOMATION
Original Assignee
CONTROLE AUTOMATION
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CONTROLE AUTOMATION filed Critical CONTROLE AUTOMATION
Priority to FR7638471A priority Critical patent/FR2375046A1/en
Publication of FR2375046A1 publication Critical patent/FR2375046A1/en
Application granted granted Critical
Publication of FR2375046B1 publication Critical patent/FR2375046B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B01D17/048—Breaking emulsions by changing the state of aggregation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0011—Heating features
    • B01D1/0017—Use of electrical or wave energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/007—Removing water from ink trains

Abstract

Printing ink is pumped from an ink well to a nozzle. This nozzle sprays the ink in a thin film vertically downwards through a heating chamber. At the bottom of the chamber the ink is collected in a sump and pumped back to the well. A tube positioned perpendicularly to the thin film in the heating chamber emits a high frequency electro-magnetic field across the area through which the ink is sprayed. This field heats the ink by dielectric losses and the water in the ink evaporates. A fan removes the water vapour from the heating chamber. The chamber is lined with a material that absorbs the hyperfrequency radiation given off by the tube. Device is partic. useful on offset print machines, bit also for removing water from other cpds., e.g. alcohols. Water is eliminated without destroying the composition of the printing ink by parallel entraining of certain volatile constituents of the ink.
FR7638471A 1976-12-21 1976-12-21 Elimination of water from printing ink - by passing thin film of ink through a high frequency electromagnetic field Granted FR2375046A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7638471A FR2375046A1 (en) 1976-12-21 1976-12-21 Elimination of water from printing ink - by passing thin film of ink through a high frequency electromagnetic field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7638471A FR2375046A1 (en) 1976-12-21 1976-12-21 Elimination of water from printing ink - by passing thin film of ink through a high frequency electromagnetic field

Publications (2)

Publication Number Publication Date
FR2375046A1 true FR2375046A1 (en) 1978-07-21
FR2375046B1 FR2375046B1 (en) 1979-04-13

Family

ID=9181319

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7638471A Granted FR2375046A1 (en) 1976-12-21 1976-12-21 Elimination of water from printing ink - by passing thin film of ink through a high frequency electromagnetic field

Country Status (1)

Country Link
FR (1) FR2375046A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534009A1 (en) * 1982-10-05 1984-04-06 Perron Robert Method for desiccation of a liquid or pasty mixture and apparatus for implementing this method
WO1984001307A1 (en) * 1982-10-05 1984-04-12 Robert Jean Perron Method and apparatus for drying a liquid or pasty mixture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2534009A1 (en) * 1982-10-05 1984-04-06 Perron Robert Method for desiccation of a liquid or pasty mixture and apparatus for implementing this method
WO1984001307A1 (en) * 1982-10-05 1984-04-12 Robert Jean Perron Method and apparatus for drying a liquid or pasty mixture

Also Published As

Publication number Publication date
FR2375046B1 (en) 1979-04-13

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Legal Events

Date Code Title Description
ST Notification of lapse