DE69212467T2 - METHOD AND SYSTEM FOR TREATING PAPER PRODUCTS WITH LARGE DENSITY LIQUIDS - Google Patents

METHOD AND SYSTEM FOR TREATING PAPER PRODUCTS WITH LARGE DENSITY LIQUIDS

Info

Publication number
DE69212467T2
DE69212467T2 DE69212467T DE69212467T DE69212467T2 DE 69212467 T2 DE69212467 T2 DE 69212467T2 DE 69212467 T DE69212467 T DE 69212467T DE 69212467 T DE69212467 T DE 69212467T DE 69212467 T2 DE69212467 T2 DE 69212467T2
Authority
DE
Germany
Prior art keywords
heavy
paper products
books
fluid
large density
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 - Fee Related
Application number
DE69212467T
Other languages
German (de)
Other versions
DE69212467D1 (en
Inventor
Maurice Carles
Alain Gouchet
Christian Perre
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of DE69212467D1 publication Critical patent/DE69212467D1/en
Application granted granted Critical
Publication of DE69212467T2 publication Critical patent/DE69212467T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/18—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00 of old paper as in books, documents, e.g. restoring

Landscapes

  • Paper (AREA)

Abstract

A method and a plant for processing paper products with a heavy pressurized fluid, wherein fibrous materials such as closed, stacked books (2) are contacted, preferably dynamically, with (a) a heavy fluid such as supercritical CO2?, and (b) the same heavy fluid containing a solution of one or more active substance(s), whereafter, after a long enough time for the active substance to impregnate the books (2), said books (2) are reduced to atmospheric pressure to remove therefrom the heavy gaseous fluid. Said active substances have a neutralizing and/or strengthening effect on the paper.
DE69212467T 1991-04-04 1992-04-02 METHOD AND SYSTEM FOR TREATING PAPER PRODUCTS WITH LARGE DENSITY LIQUIDS Expired - Fee Related DE69212467T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9104105A FR2674872A1 (en) 1991-04-04 1991-04-04 PROCESS AND PLANT FOR TREATING FIBROUS OR POROUS MATERIALS, ESPECIALLY PAPER, WITH A PRESSED DENSE FLUID.
PCT/FR1992/000293 WO1992017640A1 (en) 1991-04-04 1992-04-02 Method and plant for processing paper products with a heavy pressurized fluid

Publications (2)

Publication Number Publication Date
DE69212467D1 DE69212467D1 (en) 1996-08-29
DE69212467T2 true DE69212467T2 (en) 1997-02-06

Family

ID=9411474

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69212467T Expired - Fee Related DE69212467T2 (en) 1991-04-04 1992-04-02 METHOD AND SYSTEM FOR TREATING PAPER PRODUCTS WITH LARGE DENSITY LIQUIDS

Country Status (6)

Country Link
EP (1) EP0578736B1 (en)
JP (1) JP2987520B2 (en)
AT (1) ATE140742T1 (en)
DE (1) DE69212467T2 (en)
FR (1) FR2674872A1 (en)
WO (1) WO1992017640A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10059494A1 (en) * 2000-11-30 2002-06-20 Zfb Zentrum Fuer Bucherhaltung Conditioning agent and conditioning method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5340614A (en) * 1993-02-11 1994-08-23 Minnesota Mining And Manufacturing Company Methods of polymer impregnation
FR2747697B1 (en) * 1996-04-18 1998-06-26 Separex Sa METHOD AND INSTALLATION FOR PROCESSING PAPER DOCUMENTS WITH SUPERCRITICAL PRESSURE FLUID
DE10041003A1 (en) * 2000-08-22 2002-03-28 Sueddeutsche Kalkstickstoff Process for impregnating a carrier matrix with solid and / or liquid compounds with the aid of compressed gases and substances impregnated in this way

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676182A (en) * 1970-08-31 1972-07-11 Richard Daniel Smith Treatment of cellulosic materials
US3969549A (en) * 1974-12-24 1976-07-13 The United States Of America As Represented By The Librarian Of Congress Method of deacidifying paper
US4522843A (en) * 1984-01-25 1985-06-11 Kundrot Robert A Deacidification of library materials
DE3904111A1 (en) * 1989-02-11 1990-08-16 Battelle Institut E V METHOD AND DEVICE FOR THE ENVIRONMENTALLY FRIENDLY MASS DEIFICATION OF BOOKS AND OTHER PAPER PRODUCTS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10059494A1 (en) * 2000-11-30 2002-06-20 Zfb Zentrum Fuer Bucherhaltung Conditioning agent and conditioning method
DE10059494B4 (en) * 2000-11-30 2007-05-24 Zfb Project-Management Gmbh Conditioner and method of conditioning and its use

Also Published As

Publication number Publication date
FR2674872B1 (en) 1997-02-07
DE69212467D1 (en) 1996-08-29
EP0578736A1 (en) 1994-01-19
WO1992017640A1 (en) 1992-10-15
ATE140742T1 (en) 1996-08-15
JP2987520B2 (en) 1999-12-06
JPH06506270A (en) 1994-07-14
FR2674872A1 (en) 1992-10-09
EP0578736B1 (en) 1996-07-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee