DE291229C - - Google Patents

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Publication number
DE291229C
DE291229C DENDAT291229D DE291229DA DE291229C DE 291229 C DE291229 C DE 291229C DE NDAT291229 D DENDAT291229 D DE NDAT291229D DE 291229D A DE291229D A DE 291229DA DE 291229 C DE291229 C DE 291229C
Authority
DE
Germany
Prior art keywords
methylolformamide
glue
paper
casein
hardening
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.)
Active
Application number
DENDAT291229D
Other languages
German (de)
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.)
Publication of DE291229C publication Critical patent/DE291229C/de
Active 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
    • D21H17/22—Proteins

Description

Beim Leimen und Imprägnieren von Papier, Pappe, Gewebe und ähnlichen Stoffen mit Tierleim, Kasein u. dgl. unter · nachträglichem Härten mit Formalin oder Chromsalzeri machen sich unangenehme Nebenerscheinungen bemerkbar. Das Formalin belästigt durch seinen Geruch die Arbeiter, während die Chromsalze der Ware gelbliche Färbung geben.The sizing and impregnation of paper, cardboard, cloth and similar substances with animal glue, casein u. Like. · Under subsequent hardening with formalin or Chromsalzeri to unpleasant side effects become noticeable. The smell of formalin annoys workers, while the chromium salts give the goods a yellowish color.

Es hat sich gezeigt, daß MethylolformamidIt has been shown that methylolformamide

ίο bei genügend langer Einwirkung imstande ist, die Härtung des Tierleims oder.Kaseins eben-, falls mit genügender Sicherheit zu bewirken. Es genügen dabei etwa 2 Prozent Methylolformamid, bezogen auf das Gewicht des trockenen Leimes. Das Methylolformamid kann sowohl dem Leim unmittelbar zugesetzt werden, bevor er auf das Papier usw. aufgestrichen wird, oder man kann den Leim, nachdem er auf dem Papier eingetrocknet ist, mit Methylolformamid behandeln.ίο with a sufficiently long exposure is able to the hardening of the animal glue or casein can also be effected with sufficient certainty. About 2 percent methylolformamide, based on the weight of the, is sufficient dry glue. The methylolformamide can be added directly to the glue before it is painted on the paper etc., or you can use the glue, after it has dried up on the paper treat with methylolformamide.

Wendet man, sei es in der Leimlösung oder nachträglich auf das fertige Papier, größere Mengen Methylolformamid an, z. B. 20 Prozent, bezogen auf das Gewicht des Papiers, so erhält man infolge der hygroskopischen Eigenschäften des Methylolformamids ein außerordentlich geschmeidiges, lederartiges Erzeugnis.If you apply larger ones, be it in the glue solution or afterwards on the finished paper Amounts of methylolformamide, e.g. B. 20 percent, based on the weight of the paper, one obtains due to the hygroscopic properties of methylolformamide is an extraordinarily supple, leather-like product.

Claims (1)

Patent-Anspruch :Patent claim: Verfahren zum Leimen und Imprägnieren von Papier, Pappe, Gewebe und ähnlichen Stoffen mit Hilfe von Tierleim, Kasein u. dgl., dadurch gekennzeichnet, daß zum Härten des Leimes oder Kaseins Methylolformamid verwendet wird.Process for gluing and impregnating paper, cardboard, fabric and the like Substances with the help of animal glue, casein and the like., Characterized in that for Hardening the glue or casein using methylolformamide.
DENDAT291229D 1915-07-02 Active DE291229C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE291229T 1915-07-02

Publications (1)

Publication Number Publication Date
DE291229C true DE291229C (en)

Family

ID=6066707

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT291229D Active DE291229C (en) 1915-07-02

Country Status (2)

Country Link
DE (1) DE291229C (en)
GB (1) GB156514A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749140C (en) * 1935-05-01 1944-11-18 Process for the production of substances that protect against ª ‰, ª ‰ '-dichlorodiaethyl sulfide
DE1098706B (en) * 1954-03-18 1961-02-02 Basf Ag Process for the production of stable solutions containing proteins

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749140C (en) * 1935-05-01 1944-11-18 Process for the production of substances that protect against ª ‰, ª ‰ '-dichlorodiaethyl sulfide
DE1098706B (en) * 1954-03-18 1961-02-02 Basf Ag Process for the production of stable solutions containing proteins

Also Published As

Publication number Publication date
GB156514A (en) 1922-03-30

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