DE906651C - Process for impregnating paper - Google Patents

Process for impregnating paper

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Publication number
DE906651C
DE906651C DEA13212A DEA0013212A DE906651C DE 906651 C DE906651 C DE 906651C DE A13212 A DEA13212 A DE A13212A DE A0013212 A DEA0013212 A DE A0013212A DE 906651 C DE906651 C DE 906651C
Authority
DE
Germany
Prior art keywords
hydantoin
methyl
resins
resin
parts
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
DEA13212A
Other languages
German (de)
Inventor
Dr Paul Lagally
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.)
Aschaffenburger Zellstoffwerke AG
Original Assignee
Aschaffenburger Zellstoffwerke AG
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 Aschaffenburger Zellstoffwerke AG filed Critical Aschaffenburger Zellstoffwerke AG
Priority to DEA13212A priority Critical patent/DE906651C/en
Application granted granted Critical
Publication of DE906651C publication Critical patent/DE906651C/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20Macromolecular organic compounds
    • D21H17/33Synthetic macromolecular compounds
    • D21H17/46Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47Condensation polymers of aldehydes or ketones
    • D21H17/49Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Description

Verfahren zum Imprägnieren von Papier Für die Herstellung naßfest imprägnierter Papiere bedient man sich vorzugsweise des Substantiven Verfahrens, da es ohne zusätzliche Investierung und Erweiterung des Maschinenparks durchführbar ist. Danach werden wasserlösliche Harzkolloide unter Einhaltung bestimmter Iiautelen (pH-Wert im Stoff, Temperatur der Trockenzylinder usw.) dem wäßrigen Faserstoffbrei einverleibt. Bisher haben drei verschiedene Harztypen technische Bedeutung erlangt: i. Polyäthylenimin, 2. Melarrinharze, 3. Harnstoffharze.Process for impregnating paper For the production of wet strength Impregnated papers are preferably used the noun method, since it can be carried out without additional investment and expansion of the machine park is. Thereafter, water-soluble resin colloids are made in compliance with certain Iiautelen (pH value in the fabric, temperature of the drying cylinder, etc.) the aqueous pulp incorporated. So far, three different types of resin have achieved technical importance: i. Polyethyleneimine, 2. melarrin resins, 3. urea resins.

Polyäthylenimin und Harnstoffharze werden vom Hersteller holländerfertig geliefert und liegen als wasserverdünnbare Harzlösungen vor. Melaminharze müssen vom Verbraucher unter Zusatz von Salzsäure bis an c'.ie Grenze der Wasserlöslichkeit vorkondensiert werden. Homologen dieser drei Verbindungsklassen haben keine technische Bedeutung erlangt, da sie entweder schwer zugänglich oder zu teuer sind. Eine weitere Gruppe faserstoffaffiner Harzkolloide liegt erfindungsgemäß in den Umsetzungsprodukten von Hydantoinen mit Aldehyden vor. Da diese Verbindungsklasse auch hinsichtlich der Hydantoinkomponente stark variationsfähig ist, können Harztypen für die verschiedensten Ansprüche eingesetzt werden, die in spezifischer Weise festigkeitssteigernd wirken oder beispielsweise bakterizide bzw. fungizide Gruppen tragen. So läßt sich die Affinität zu Sulfitzellstoff durch Einführung basischer Gruppen wesentlich steigern. Verbindungen, wie z. B. 5-Piperidinoäthyl-5-methyl-hydantoin oder 5-Dimethylaminoäthyl-5-methyl-hydantoin, die im allgemeinen nur therapeutisches Interesse besitzen, sind für das erfindungsgemäße Verfahren hervorragend geeignet. Die Herstellung wasserlöslicher Hydantoinharze ist zwar durch die USA.-Patentschrift 2 155 863 der Da Pont de Nemours bekannt; der Gegenstand der vorliegenden Erfindung ist ihre Verwendung für die Zwecke der Papierimprägnierung, wobei die oben dargelegten Vorteile auftreten.Polyethyleneimine and urea resins are made by the manufacturer for Dutch use and are available as water-thinnable resin solutions. Melamine resins need by the consumer with the addition of hydrochloric acid up to the limit of water solubility be precondensed. Homologues of these three classes of compounds have no technical Becomes important because they are either difficult to access or too expensive. Another According to the invention, the group of resin colloids with an affinity for fiber lies in the reaction products of hydantoins with aldehydes. Since this class of compounds is also related to the hydantoin component is highly variable, resin types can be used for the most diverse Claims are used that have a specific effect on increasing strength or, for example, carry bactericidal or fungicidal groups. So can the Significantly increase the affinity for sulfite pulp by introducing basic groups. Connections such as B. 5-piperidinoethyl-5-methyl-hydantoin or 5-dimethylaminoethyl-5-methyl-hydantoin, which are generally only of therapeutic interest, are for the invention Process excellently suited. The manufacture of water-soluble hydantoin resins is known from the US Pat. No. 2,155,863 to Da Pont de Nemours; the subject of the present invention is their use for the purposes the Impregnation of paper, with the advantages set out above occurring.

Als Hydantoinkomponente seien beispielsweise genannt: 5, 5-Dimethyl-hydantoin, 5-Methyl-5-äthylhydantoin, 5-Phenyl-hydantoin, 5-Methyl-5-Phenoxymethyl - hydantoin, 5 - Piperidinoäthyl - 5 - methylhydantoin, 5-Dimethylaminoäthyl-5-methyl-hydäntoin usw., als Aldehydkomponente Formaldehyd, Acetaldehyd und Acrolein. Die Harze können allein oder mit anderen wasserlöslichen Harzen, z. B. Melamin- und Harnstoffharzen, kombiniert und unter zusätzlicher Anwendung hydrophiler und viskositätserhöhender Agenzien, wie Polyvhiylalkohol, Polyacrylsäureamid, Polymethacrylsäureamid, zur Anwendung kommen.Examples of hydantoin components are: 5, 5-dimethylhydantoin, 5-methyl-5-ethylhydantoin, 5-phenyl-hydantoin, 5-methyl-5-phenoxymethyl-hydantoin, 5 - piperidinoethyl - 5 - methylhydantoin, 5-dimethylaminoethyl-5-methylhydantoin etc., as the aldehyde component formaldehyde, acetaldehyde and acrolein. The resins can alone or with other water-soluble resins, e.g. B. melamine and urea resins, combined and with the additional use of hydrophilic and viscosity-increasing agents Agents such as polyvinyl alcohol, polyacrylic acid amide, polymethacrylic acid amide, for Application.

Beispiele 1. 284 Teile 5-Methyl-5-äthyl-hydantoin werden mit 132 Teile Formaldehyd (= 357 Teile 37°/oiger Lösung) versetzt. Nach Abklingen der Wärmetönung verdünnt man mit Wasser auf insgesamt 5öoo Teile.Examples 1. 284 parts of 5-methyl-5-ethyl-hydantoin are mixed with 132 parts Formaldehyde (= 357 parts of 37% solution) was added. After the heat tint subsided it is diluted with water to a total of 500 parts.

io Teile Natronzellstoff werden in 5ooo Teilen Wasser aufgeschlagen und mit 0,25 bis io,o°/o Hydantoinharz versetzt. Dabei steigt die Naßreißlänge des Zellstoffs von 540 auf 1570 m. Dosierung Reißlänge (m) °/° trocken naß 0,0 ........ ......... io 630 540 0,25 .................. 8470 990 0,5 ................... 8 98o 1070 1,o ................... 9 18o 1210 3,0 ................... 8830 1350 5,0 .... .......... g oio 1350 8,o .................... 843o 1570 1o;0 . . . . . . . . . . . . . . . . . . . 856o 1530 z. 284 Teile 5-Methyl-5-äthyl-hydantoin werden mit 332 Teilen 39,8°/oiger Formaldehydlösung und 21 Teilen hochviskosem Polyvinylalkohol umgesetzt. Das erhaltene zähe Harz wird mit Wasser verdünnt und ist in dieser Form ohne weiteres für die Imprägnierung von Zellstoff geeignet. So erhöhen 311/, des erhaltenen Hydantoinharzes die Naßreißlänge von ungebleichtem Natronzellstoff von 440 auf 226o m, die von gebleichtem Sulfitzellstoff von 39o auf 82o m.100 parts of sodium cellulose are whipped in 500 parts of water and 0.25 to 100% hydantoin resin is added. The wet breaking length of the pulp increases from 540 to 1570 m. Dosage tear length (m) ° / ° dry wet 0.0 ........ ......... io 630 540 0.25 .................. 8,470 990 0.5 ................... 8 98o 1070 1, o ................... 9 18o 1210 3.0 ................... 8830 1350 5.0 .... .......... g oio 1350 8, o .................... 843o 1570 1o; 0. . . . . . . . . . . . . . . . . . . 856o 1530 z. 284 parts of 5-methyl-5-ethylhydantoin are reacted with 332 parts of 39.8% formaldehyde solution and 21 parts of highly viscous polyvinyl alcohol. The viscous resin obtained is diluted with water and in this form is readily suitable for the impregnation of cellulose. Thus, 311 /, of the hydantoin resin obtained increase the wet breaking length of unbleached soda pulp from 440 to 226o m, that of bleached sulphite pulp from 39o to 82o m.

Claims (5)

PATENTANSPRÜCHE: _. Verfahren zum Imprägnieren von Papier, dadurch gekennzeichnet, daß gegebenenfalls mit anderen kondensationsfähigen hydrophilen oder bzw. und viskositätserhöhenden Verbindungen kombinierte harzartige Umsetzungsprodukte aus Hydantoinen und Aldehyden dem wäßrigen Faserstoffbrei zugesetzt werden. PATENT CLAIMS: _. Process for impregnating paper, thereby characterized in that optionally with other condensable hydrophilic or / and resin-like reaction products combined with viscosity-increasing compounds from hydantoins and aldehydes are added to the aqueous pulp. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß am Kohlenstoff substituierte Hydantoine, z. B. 5-Methyl-5-äthyl-hydantoin, 5, 5-D1-methyl-hydantoin, 5-Phenyl-hydantoin, 5-Methyl-5-Phenoxymethyl-hydantoin verwendet werden. 2. Procedure according to claim i, characterized in that hydantoins substituted on carbon, z. B. 5-methyl-5-ethyl-hydantoin, 5, 5-D1-methyl-hydantoin, 5-phenyl-hydantoin, 5-methyl-5-phenoxymethyl-hydantoin can be used. 3. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß als Aldehyde Formaldehyd, Acetaldehyd, Acrolein verwendet werden. 3. The method according to claim i, characterized in that the aldehydes used are formaldehyde, acetaldehyde, acrolein will. 4. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß Mischungen von Hydantoinharzen mit Harzen aus Harnstoff, Thioharnstoff, Melamin, Dicyandiamid verwendet werden. 4. The method according to claim i, characterized in that mixtures of Hydantoin resins used with resins made from urea, thiourea, melamine, dicyandiamide will. 5. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß als viskositätserhöhende Zusätze höherwertige Alkohole, z. B. Polyvinylalkohol, mitverwendet werden.5. The method according to claim i, characterized in that the viscosity-increasing Additions of higher alcohols, e.g. B. polyvinyl alcohol can also be used.
DEA13212A 1951-04-19 1951-04-19 Process for impregnating paper Expired DE906651C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA13212A DE906651C (en) 1951-04-19 1951-04-19 Process for impregnating paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA13212A DE906651C (en) 1951-04-19 1951-04-19 Process for impregnating paper

Publications (1)

Publication Number Publication Date
DE906651C true DE906651C (en) 1954-03-15

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Family Applications (1)

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Country Status (1)

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DE (1) DE906651C (en)

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