DE366322C - Process for the production of dense, strong papers - Google Patents

Process for the production of dense, strong papers

Info

Publication number
DE366322C
DE366322C DESCH53279D DESC053279D DE366322C DE 366322 C DE366322 C DE 366322C DE SCH53279 D DESCH53279 D DE SCH53279D DE SC053279 D DESC053279 D DE SC053279D DE 366322 C DE366322 C DE 366322C
Authority
DE
Germany
Prior art keywords
dense
production
waste
slime
pulp
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
DESCH53279D
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.)
CARL G SCHWALBE DR
Original Assignee
CARL G SCHWALBE 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 CARL G SCHWALBE DR filed Critical CARL G SCHWALBE DR
Priority to DESCH53279D priority Critical patent/DE366322C/en
Application granted granted Critical
Publication of DE366322C publication Critical patent/DE366322C/en
Expired 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides

Landscapes

  • Paper (AREA)

Description

Verfahren zur Herstellung von dichten, festen Papieren. Zusatz zum Patent 303498. Gegenstand des Patents 303498 ist ein Verfahren zur Herstellung von dichten und festen Papieren durch Einverleibung von Zellstoffschleim in den Faserbrei. Es wurde nun gefunden, daB man eine noch bessere Dichtung und Festigkeit und eine recht erhebliche Leimfestigkeit erreichen kann, wenn man dem kolloiden Zellstoffschleim andere Kolloide; sogenannte »Schutzkolloide«, beifügt, die zur Erhaltung des Schleimzustandes und seiner Befestigung in und auf den Papierfaserstoffen beitragen. Als solche Schutzkolloide können alle Pflanzenschleime, Karragheena#bkochung, z. B. Tragant, Stärkekleister, Norgine, ferner Tierleim, Kasein u. dgl., dienen. Von anorganischen Kolloiden eignet sich insbesondere das Tonerdehydrat, wie es beispielsweise durch Wechselwirkung zwischen dem Zellstoffschleim und Tonerdesulfatlösung erzeugt werden kann.Process for the production of dense, strong papers. Addendum to patent 303498. The subject of patent 303498 is a process for the production of dense and strong papers by incorporating pulp slime into the pulp. It has now been found that one can achieve an even better seal and strength and a very considerable strength of glue if other colloids are added to the colloidal pulp slime; So-called "protective colloids" are added, which help to maintain the state of slime and its attachment in and on the paper fibers. As such protective colloids, all plant mucilages, Karragheena boiling, z. B. tragacanth, starch paste, norgine, animal glue, casein and the like. Of inorganic colloids, alumina hydrate is particularly suitable, as it can be generated, for example, by interaction between the pulp slime and alumina sulfate solution.

B e i s p i e 1. Der mit Säure vorbehandelte und zu Schleim gemahlene Zellstoff wird mit Zellstoffasern innig vermischt und hierauf Tonerdesulfatlösung, etwa 5 Teile auf zoo Teile S,chleimzellstoffgemisch unter Umrühren hinzugegeben, worauf eine längere, etwa '/4 bis 'j,stündige gründliche Durchmisc'hung zu erfolgen hat.Example 1. The one pretreated with acid and ground into slime Cellulose is intimately mixed with cellulose fibers and then alumina sulfate solution, about 5 parts to zoo parts of S, added the sludge pulp mixture while stirring, whereupon a longer, about 1/4 to 1/2 hour, thorough mixing is to be carried out Has.

Claims (1)

PATENT-ANSPRUcH Verfahren zur Herstellung von dichten, festen Papieren nach Patent 303498, 'dadurch gekennzeichnet, daB man dem Papierbrei zugleich mit den schleimigen oder Schleim bildenden Stoffen, die aus chemisch sauer vorbehandeltem Abfallstoff (Altpapier, Zellstoffabfall, Holzabfall) durch kurze Mahlung desselben in einem Holländer erhalten werden, oder nachher organische oder angorganische Kolloide, beispielsweise Stärkekleister. Norgine, Tierlein;, Kasein oder Tonerdehydrat zusetzt.PATENT CLAIM A process for the production of dense, firm papers according to patent 303498, characterized in that the pulp is simultaneously with the slimy or slime-forming substances that are made from chemically acid-pretreated waste material (waste paper, cellulose waste, wood waste) by briefly grinding the same into a Dutchman, or afterwards organic or angorganic colloids, for example starch paste. Norgine, little animals; casein or alumina hydrate added.
DESCH53279D 1918-06-14 1918-06-14 Process for the production of dense, strong papers Expired DE366322C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH53279D DE366322C (en) 1918-06-14 1918-06-14 Process for the production of dense, strong papers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH53279D DE366322C (en) 1918-06-14 1918-06-14 Process for the production of dense, strong papers

Publications (1)

Publication Number Publication Date
DE366322C true DE366322C (en) 1922-12-02

Family

ID=7436775

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH53279D Expired DE366322C (en) 1918-06-14 1918-06-14 Process for the production of dense, strong papers

Country Status (1)

Country Link
DE (1) DE366322C (en)

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