CA2286297A1 - Procede pour eliminer des encres flexographiques a base aqueuse imprimees sur des substrats - Google Patents

Procede pour eliminer des encres flexographiques a base aqueuse imprimees sur des substrats Download PDF

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Publication number
CA2286297A1
CA2286297A1 CA 2286297 CA2286297A CA2286297A1 CA 2286297 A1 CA2286297 A1 CA 2286297A1 CA 2286297 CA2286297 CA 2286297 CA 2286297 A CA2286297 A CA 2286297A CA 2286297 A1 CA2286297 A1 CA 2286297A1
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CA
Canada
Prior art keywords
per molecule
range
groups per
process according
formula
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.)
Abandoned
Application number
CA 2286297
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English (en)
Inventor
Eric Heath Larson
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.)
Rhodia Chimie SAS
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2286297A1 publication Critical patent/CA2286297A1/fr
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/025—De-inking
    • D21C5/027—Chemicals therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Paper (AREA)

Abstract

Cette invention se rapporte à un procédé permettant d'éliminer les encres flexographiques à base aqueuse imprimées sur du papier, ce procédé consistant: (a) à former une boue en réduisant en pâte le papier contenant ces encres flexographiques à base aqueuse, dans un milieu aqueux ayant un pH supérieur à 6 et contenant: (1) un ou plusieurs agents de réglage de pH; (2) un ou plusieurs tensioactifs non ioniques; et (3) un ou plusieurs polyélectrolytes anioniques; et (b) à soumettre la boue produite à l'étape (a) à une cellule de flottation contenant un ou plusieurs polymères cationiques. La cellule de flottation peut renfermer une ou plusieurs sources d'ions calcium (2+), d'ions magnésium (2+), d'ions aluminium (2+) ou d'ions aluminium (3+). Les sources de composés qui peut être choisies sont notamment les composés suivants: chlorure de calcium, chlorure d'aluminium, chlorure de magnésium, sulfate de calcium, sulfate de magnésium ou sulfate d'aluminium. En pratique, le cas échéant, la source d'ions positifs est présente dans la cellule de flottation selon des quantités comprises entre environ 10 et 1000 ppm, de préférence entre environ 300 ppm et 500 ppm.
CA 2286297 1997-04-10 1998-04-09 Procede pour eliminer des encres flexographiques a base aqueuse imprimees sur des substrats Abandoned CA2286297A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US4349197P 1997-04-10 1997-04-10
US60/043,491 1997-04-10
US87637797A 1997-06-16 1997-06-16
US08/876,377 1997-06-16
PCT/US1998/007250 WO1998045530A1 (fr) 1997-04-10 1998-04-09 Procede pour eliminer des encres flexographiques a base aqueuse imprimees sur des substrats

Publications (1)

Publication Number Publication Date
CA2286297A1 true CA2286297A1 (fr) 1998-10-15

Family

ID=26720483

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2286297 Abandoned CA2286297A1 (fr) 1997-04-10 1998-04-09 Procede pour eliminer des encres flexographiques a base aqueuse imprimees sur des substrats

Country Status (3)

Country Link
AU (1) AU6898598A (fr)
CA (1) CA2286297A1 (fr)
WO (1) WO1998045530A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CO5180563A1 (es) 1999-01-25 2002-07-30 Kimberly Clark Co Polimeros de vinilo modificados que contienen medios de hidrocarbono anfifilico de y el metodo para su fabricacion
US6287418B1 (en) 1999-01-25 2001-09-11 Kimberly-Clark Worldwide, Inc. Modified vinyl polymers containing amphiphilic hydrocarbon moieties
US6224714B1 (en) 1999-01-25 2001-05-01 Kimberly-Clark Worldwide, Inc. Synthetic polymers having hydrogen bonding capability and containing polysiloxane moieties

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5423705A (en) * 1977-07-18 1979-02-22 Honshu Paper Co Ltd Deinking of waste printed paper
US4599190A (en) * 1979-11-13 1986-07-08 Diamond Shamrock Chemicals Company Composition for drinking secondary fibers
CA1339231C (fr) * 1989-03-30 1997-08-05 Ratana Kanluen Polymere multifonctionnel utilise comme agent de desencrage
DE4007596A1 (de) * 1990-03-09 1991-09-12 Henkel Kgaa Alkylenoxideinheiten und quaternaere ammoniumgruppen enthaltende verbindungen
US5094716A (en) * 1990-09-19 1992-03-10 Betz Paperchem, Inc. Use of anionic surfactant/dispersant blends for the deinking of groundwood newsprint
US5415733A (en) * 1993-05-27 1995-05-16 High Point Chemical Corp. Method of removing hydrophilic ink
US5384010A (en) * 1993-08-27 1995-01-24 Hoechst Celanese Corporation Deinking wastepaper printed with water-based ink
US5632857A (en) * 1995-04-04 1997-05-27 Rhone-Poulenc Inc. Process for removing waterborne flexographic inks from substrates
DE69619231T2 (de) * 1995-04-05 2002-09-19 Kao Corp Verfahren zum deinken

Also Published As

Publication number Publication date
AU6898598A (en) 1998-10-30
WO1998045530A1 (fr) 1998-10-15

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Legal Events

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FZDE Dead