DE415062C - Process for removing printer ink from waste paper - Google Patents

Process for removing printer ink from waste paper

Info

Publication number
DE415062C
DE415062C DEB114718D DEB0114718D DE415062C DE 415062 C DE415062 C DE 415062C DE B114718 D DEB114718 D DE B114718D DE B0114718 D DEB0114718 D DE B0114718D DE 415062 C DE415062 C DE 415062C
Authority
DE
Germany
Prior art keywords
pulp
waste paper
dyes
acid
water
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
DEB114718D
Other languages
German (de)
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.)
PAUL BOURCET DR
Original Assignee
PAUL BOURCET DR
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 PAUL BOURCET DR filed Critical PAUL BOURCET DR
Application granted granted Critical
Publication of DE415062C publication Critical patent/DE415062C/en
Expired legal-status Critical Current

Links

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

Description

Bur.Bur.

\nö.\ nö.

In der Patentschrift 396071 der Klasse 55 b ist hereits ein Verfahren zum Entfernen der Druckerschwärze aus Altpapier beschrieben, um dessen Verwendung an Stelle von neuem 5· Papierbrei zu ermöglichen. Das genannte ältere Verfahren besteht im wesentlichen aus folgenden Maßnahmen:In the patent specification 396071 class 55 b here is a method for removing the Printing ink from waste paper described in order to use it instead of anew 5 · Allow paper pulp. The aforementioned older method consists essentially of following measures:

1. Das Altpapier wird zunächst mit Wasser zu einem Brei angerührt.1. The waste paper is first mixed with water to a pulp.

2. Die in der Druckerschwärze enthaltenen unlöslichen Farbstoffe werden durch Auflösen des Bindemittels oder der Farbe des Farbstoffes durch eine Emulsion einer Fettsäure, z. B. Oleinsäure, in einer wäßrigen Lösung eines fettsauren oder harzsauren alkalischen Salzes, das auch sulfonsauer sein kann, z. B. eines alkalischen Oleates, Sulfooleates. Sulforizinates, Resinates und Sulforesinates, bloßgelegt. 2. The insoluble dyes contained in the printing ink are dissolved by dissolving the binder or the color of the dye through an emulsion of a fatty acid, z. B. oleic acid, in an aqueous solution of a fatty acid or resin acidic alkaline Salt, which can also be sulphonic acid, e.g. B. an alkaline oleate, sulfooleate. Sulforizinates, Resinates and Sulforesinates, exposed.

3. Die so bloi.igelegtc'u Farbstoffe werden endlich ausgeschieden, indem sie von einer mit Wasser nicht mischbaren Flüssigkeit aufgenommen werden, worauf diese Flüssigkeit ■mit den in ihr enthaltenen Farbstoffen durch eine geeignete Vorrichtung, z. I>. mittels eines Zentrifugalfilters, abgeschieden wird.3. The so bloi.igelegtc'u dyes are finally excreted by being absorbed by a liquid immiscible with water whereupon this liquid ■ with the dyes it contains a suitable device, e.g. I>. by means of a centrifugal filter.

Die Erfindung Ixtrifft rine Abführung dieses Verfahrens, das die Abscheidung K-r Farbstoffe nach ihrer Bloßlegung in einfaclu-r und billiger Weise ermöglicht. Das nein· Verfahren besteht im wesentlichen darin, daß der Papierbrei nach der unter 2 angegebenen Behandlung, durch die die in der Druckerschwärze enthaltenen Farbstoffe bloßgelegt werden, ohne weiteres in einer Waschtrommel behandelt wird, wobei sich die bloßgelegten Farbstoffe von dem Zellstoff trennen.The invention is a mere implementation of this process which enables the deposition of dyes after their exposure in a simple and inexpensive manner. The no · method consists essentially in the fact that the paper pulp, after the treatment specified under 2 , by which the dyes contained in the printing ink are exposed, is treated without further ado in a washing drum, whereby the exposed dyes separate from the pulp.

Das neue Verfahren besteht also aus folgenden Maßnahmen:The new procedure therefore consists of the following measures:

1. Das Altpapier wird zunächst mit Wasser zu einem Brei verrührt, und die unlöslichen Farbstoffe in der Druckerschwärze, die dieser Brei enthält, werden in derselben Weise wie gemäß dem älteren Patente 396071 bloßgelegt. 1. The waste paper is first stirred into a pulp with water, and the insoluble dyes in the printing ink which this pulp contains are exposed in the same manner as in the earlier patent 396071.

2. Hierauf wird der in dieser Weise aufgespaltete Brei in einer Waschtrommel behandelt, wobei sich die bloßgelegten Farbstoffe von dem Zellstoff trennen.2. The pulp thus split is then treated in a washing drum, whereby the exposed dyes separate from the pulp.

Während dieser letzten Stufe des Verfahrens scheiden sich bei der Drehung der Waschtrommel in demselben Maße, wie sich der Brei an deren Wandung absetzt und in das Wasser zurückfällt, die Farbstoffe ab, die leichter sind als Wasser, steigen an die Oberfläche des Wassers, das im Innern der Waschtrommel fließt, und werden so mit ihm abgeführt. Selbstverständlich kann man zur Ausführung les neuen Verfahrens Waschtrommeln beliebiger Bauart verwenden.During this final stage of the process, parting as the washing drum rotates to the same extent that the pulp settles on the wall and falls back into the water, the dyes, which are lighter, fall off as water, rise to the surface of the water that is inside the washing drum flows, and are thus carried away with him. Of course you can go to execution les new process use washing drums of any type.

Claims (1)

1500215002 1 λ τι·: N r-AxM'Ki ( η:1 λ τι: N r-AxM'Ki (η: Emulsion einer Fettsäure, ζ. B. Oleinsäure ίο ()(jer ejner Harzsäure, in einem löslichen Verfahren zum Entfernen von Drucker- . fettsauren oder harzsäuren alkalischen schwärze aus Altpapier, bei dem man zu- Salz, das auch sulfonsauer sein kann, auf-Emulsion of a fatty acid, ζ. B. oleic acid ίο () ( j er e j ner resin acid, in a soluble process to remove printer. Fatty acids or resin acids alkaline black from waste paper, in which you add salt, which can also be sulfonic acid, on- nächst das Altpapier mit Wasser zu einem löst, dadurch gekennzeichnet, daß der innext dissolves the waste paper with water to one, characterized in that the in Brei verrührt, alsdann die in ihm enthalte- dieser Weise aufgespaltete Papierbrei inMix the pulp, then split the paper pulp contained in it into neu unlöslichen Farbstoffe der Drucker- einer Waschtrommel behandelt wird, \vo-newly insoluble dyes of the printer - a washing drum is treated, \ vo- sdnvärze bloßlegt, indem man das Binde- bei sich die bloßgelegten Farbstoffe vonsdnvärze exposes the binding agent in the exposed dyes of mittel der Druckerschwärze durch eine dem Zellstoff trennen.Separate by means of the printing ink through one of the pulp.
DEB114718D 1923-07-19 1924-07-02 Process for removing printer ink from waste paper Expired DE415062C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR415062X 1923-07-19

Publications (1)

Publication Number Publication Date
DE415062C true DE415062C (en) 1925-06-12

Family

ID=8897995

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB114718D Expired DE415062C (en) 1923-07-19 1924-07-02 Process for removing printer ink from waste paper

Country Status (3)

Country Link
DE (1) DE415062C (en)
FR (1) FR580624A (en)
GB (1) GB219311A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747946C (en) * 1939-07-13 1944-10-20 Georg Jayme Dr Ing Process for removing printing ink from waste paper
EP0067333A1 (en) * 1981-06-12 1982-12-22 Akzo GmbH Process for deinking waste printed papers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747946C (en) * 1939-07-13 1944-10-20 Georg Jayme Dr Ing Process for removing printing ink from waste paper
EP0067333A1 (en) * 1981-06-12 1982-12-22 Akzo GmbH Process for deinking waste printed papers
US4586982A (en) * 1981-06-12 1986-05-06 Akzona Incorporated Process for the de-inking of printed waste paper

Also Published As

Publication number Publication date
FR580624A (en) 1924-11-12
GB219311A (en) 1924-11-13

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