US1727722A - Deinking solution - Google Patents

Deinking solution Download PDF

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Publication number
US1727722A
US1727722A US25754128A US1727722A US 1727722 A US1727722 A US 1727722A US 25754128 A US25754128 A US 25754128A US 1727722 A US1727722 A US 1727722A
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US
United States
Prior art keywords
solution
paper
stock
ink
deinking solution
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 - Lifetime
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English (en)
Inventor
Lewis William
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1727722A publication Critical patent/US1727722A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • My invention relates to improvements in de-inking solutions, the objects of which are to provide means which will dissolve printers ink and the like on newspaper and other stock and so neutralize the fatty substances in the ink so as to enable it to be readily washed from the stock that the said stock may be re-used in the formation of paper or other paper products.
  • the solution is composed of certain ingredients which will obviously vary in quantity according to the paper stock to be de-inked and the components or quality of the ink used thereon. Generally on a common paper stock such as newsprint, a much weaker solution is required than for highly calendered papers.
  • the paper so treated can be entirely freed of ink by successive immersions in this solution without heating and I have found that clean commercial pulp can be obtained from ordinary printed newsprint in from two to four minutes.
  • the method of tie-inking printed paper stock whcih consists of saturating the paper in a solution of washing powder, lye, waterglass and water, and subsequently expressing the solution from the resulting pulp.
  • a de-inking solution consisting substantially of live parts of water glass, two parts of caustic soda. one part of Pearline and water in suitable proportion.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Paper (AREA)
US25754128 1927-12-12 1928-02-27 Deinking solution Expired - Lifetime US1727722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA1727722X 1927-12-12

Publications (1)

Publication Number Publication Date
US1727722A true US1727722A (en) 1929-09-10

Family

ID=4174067

Family Applications (1)

Application Number Title Priority Date Filing Date
US25754128 Expired - Lifetime US1727722A (en) 1927-12-12 1928-02-27 Deinking solution

Country Status (4)

Country Link
US (1) US1727722A (en(2012))
BE (1) BE355870A (en(2012))
FR (1) FR664059A (en(2012))
GB (1) GB321826A (en(2012))

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525594A (en) * 1947-03-06 1950-10-10 Du Pont Deinking waste paper
US2580161A (en) * 1947-03-13 1951-12-25 Driessen Cornelius Clarence Process of deinking printed waste paper
US2582496A (en) * 1947-10-09 1952-01-15 St Regis Paper Co Deinking and bleaching of paper
US3056713A (en) * 1952-02-09 1962-10-02 Fmc Corp Process for the regeneration of waste paper
US5755926A (en) * 1992-02-24 1998-05-26 Kimberly-Clark Worldwide, Inc. Integrated pulping process of waste paper yielding tissue-grade paper fibers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749289C (de) * 1938-08-13 1944-11-21 Josef Breitkopf Dipl Ing Verfahren zum Aufarbeiten von bedrucktem oder beschriebenem Altpapier

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525594A (en) * 1947-03-06 1950-10-10 Du Pont Deinking waste paper
US2580161A (en) * 1947-03-13 1951-12-25 Driessen Cornelius Clarence Process of deinking printed waste paper
US2582496A (en) * 1947-10-09 1952-01-15 St Regis Paper Co Deinking and bleaching of paper
US3056713A (en) * 1952-02-09 1962-10-02 Fmc Corp Process for the regeneration of waste paper
US5755926A (en) * 1992-02-24 1998-05-26 Kimberly-Clark Worldwide, Inc. Integrated pulping process of waste paper yielding tissue-grade paper fibers

Also Published As

Publication number Publication date
BE355870A (en(2012)) 1900-01-01
GB321826A (en) 1929-11-21
FR664059A (fr) 1929-08-29

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