GB495636A - Improvements in and relating to methods and means for the de-fibring and de-inking of papers - Google Patents

Improvements in and relating to methods and means for the de-fibring and de-inking of papers

Info

Publication number
GB495636A
GB495636A GB402737A GB402737A GB495636A GB 495636 A GB495636 A GB 495636A GB 402737 A GB402737 A GB 402737A GB 402737 A GB402737 A GB 402737A GB 495636 A GB495636 A GB 495636A
Authority
GB
United Kingdom
Prior art keywords
waste paper
streams
conflicting
ink
class
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
Application number
GB402737A
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
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
Priority to GB402737A priority Critical patent/GB495636A/en
Publication of GB495636A publication Critical patent/GB495636A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • D21B1/325—Defibrating by other means of waste paper de-inking devices
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Abstract

495,636. De-inking waste paper &c. PARTINGTON, E. H., BECKER, D. R. S., and PORRITT, W. H. Feb. 10, 1937, Nos. 4027 and 27638. [Class 96] Clean pulp is pro. duced from printed or pigmented waste paper, paper board, &c. by steeping, e.g, in caustic soda solu. tion at 160-200‹ F. and agitating so as tc set up opposed conflicting liquid streams of sufficient intensity to cause fragments in one stream to engage frictionally with those of the other and thus separate the fragments into discrete fibres freed from ink and filler which are subsequently washed out. If the waste paper contains little or no loading, china clay &c. may be added to assist in washing out the ink. The opposed streams may be produced by two propellers f, g on a shaft e, one g which circulates the pulp as shown, and the other f is so positioned and dimensioned as to produce by centrifugal effect the conflicting stream adjacent an inlet b which may be offset with respect to the propeller axis. In alternative forms a single propeller is used, and opposing streams produced with baffles. Specification 262,270, [Class 96], is referred to.
GB402737A 1937-02-10 1937-02-10 Improvements in and relating to methods and means for the de-fibring and de-inking of papers Expired GB495636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB402737A GB495636A (en) 1937-02-10 1937-02-10 Improvements in and relating to methods and means for the de-fibring and de-inking of papers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB402737A GB495636A (en) 1937-02-10 1937-02-10 Improvements in and relating to methods and means for the de-fibring and de-inking of papers

Publications (1)

Publication Number Publication Date
GB495636A true GB495636A (en) 1938-11-10

Family

ID=9769347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB402737A Expired GB495636A (en) 1937-02-10 1937-02-10 Improvements in and relating to methods and means for the de-fibring and de-inking of papers

Country Status (1)

Country Link
GB (1) GB495636A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3508267A1 (en) * 2017-12-28 2019-07-10 Seiko Epson Corporation Processing apparatus, sheet manufacturing apparatus, and processing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3508267A1 (en) * 2017-12-28 2019-07-10 Seiko Epson Corporation Processing apparatus, sheet manufacturing apparatus, and processing method
TWI688463B (en) * 2017-12-28 2020-03-21 日商精工愛普生股份有限公司 Processing device, sheet manufacturing device and processing method

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