DE122886C

DE122886C -

Info

Publication number: DE122886C
Application number: DENDAT122886D
Authority: DE

Description

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KAISERLICHESIMPERIAL

PATENTAMTPATENT OFFICE

Κι 122886
KLASSE 55/. Κι 122886
CLASS 55 /.

Gegenstand vorliegender Erfindung betrifft ein Verfahren, um Papier für gewisse Verwendungszwecke, wie Photographie, Drucksachen u. s. w., gegen die zur Verwendung gelangenden Lösungen, Farben u. s. w., wie z. B. Silberlösungen, wässerige, ätherische, alkoholische und sonstige organische Lösungsmittel, Druckfarben oder dergl., undurchlässig zu machen. '. . ■'The present invention relates to a method to paper for certain purposes, such as photography, printed matter, etc., against the solutions used, colors, etc., such as. B. silver solutions, aqueous, ethereal, alcoholic and other organic solvents, printing inks or the like. To make impermeable. '. . ■ '

Bei gewöhnlicher, auch · sattester Leimung wird, wenn der Harzleim ganz oder theilweise verseift und mit schwefelsaurer Thonerde gefällt wird, das Papier nicht vollkommen undurchlässig, so dafs selbst wässerige Lösungen noch durchschlagen. ...'.. .With the usual, even the fullest, glue, if the resin glue is wholly or partially saponified and precipitated with sulfuric alumina If the paper is not completely impermeable, so does even aqueous solutions still penetrate. ... '...

- Je mehr Harz in dem Papier auf diese Weise fkirt wurde, desto weniger durchlässig ist es. Aber ihclbst bei Papieren, die so viel Harz enthalten (5 bis 6 pCt.), als man ihnen nach den üblichen Leimmethoden einverleiben kann, schlagen wässerige und die anderen noch oben genannten Lösungen durch. Auch für pflanzliche und thierische Fette und OeIe, sowie Mischungen derselben mit Lösungsmitteln und Farbstoffen, für Fettfarben oder Mischungen derselben mit den vorstehend genannten Mitteln, z. B. die stearin- oder ölsauren Salze von basischen Anilinfarben (ölsaures Rosanilin, stearinsaures Tetraphenylrosanilin, das : sogen. Rosanilinblau),. ist das so hergestellte Papier nicht undurchlässig.- The more resin in the paper is made in this way, the less permeable it is. But even with papers that contain as much resin (5 to 6 pct.) As one would expect from them usual glue methods can incorporate, watery and the other still beat up mentioned solutions. Also for vegetable and animal fats and oils, as well Mixtures of the same with solvents and dyes, for fat colors or mixtures the same with the aforementioned means, e.g. B. the stearic or oleic acid salts of basic aniline dyes (oleic acid rosaniline, stearic acid tetraphenyl rosaniline, the so-called. Rosaniline blue) ,. the paper produced in this way is not impermeable.

Um nun das Papier für alle diese Mittel undurchlässig zu machen, hat man bisher das fertige Papier mit mineralischen Mitteln, z.B. Bariumsulfat,; das mit Wasser und Gelatine zu einem Teige angerührt war (sogen. Barytiren), oder mit Lösungen von Paraffin, Wachs oder, ahnlichen Appreturmitteln bestrichen. Das fertige Papier ist also erst für den gewünschten Zweck präparirt worden.In order to make the paper impermeable to all of these means, one has so far finished paper with mineral agents, e.g. barium sulfate; that with water and gelatin too was mixed with a dough (so-called Barytiren), or with solutions of paraffin, wax or, coated similar finishing agents. The finished paper is therefore only for the desired one Purpose prepared.

Man hat schon früher erkannt, dafs auf diese Weise ein undurchlässiges Papier sich nicht herstellen läfst, da es nicht möglich ist, das Appreturmittel in der erforderlichen Gleichmäfsigkeit und Tiefe über das Papier zu vertheilen, und hat diesen Uebelstand dadurch zu beseitigen versucht, dafs man Leimung und Appretirung gleichzeitig im Holländer vornahm und so ein Papier erhielt, welches einer weiteren Präparirung zwecks Undurchlässigmachenb nicht mehr bedurfte.It has already been recognized earlier that an impermeable paper is created in this way cannot be produced because it is not possible to use the finishing agent with the required uniformity and to distribute depth over the paper, and has tried to remedy this disadvantage by using glue and Finished at the same time in the Dutchman and thus received a paper, which another Preparation for the purpose of making it impermeable was no longer required.

Aber die zur Erreichung dieses Zweckes vorgeschlagenen Verfahren, wie der Zusatz von Tannin oder Thonerdesulfat oder von Thonerdesulfat und Chromalaun, haben die Lösung der Aufgabe nicht gebracht!But the methods proposed to achieve this end, such as the addition of Tannin or clay sulfate or of clay sulfate and chrome alum have the solution not brought to the task!

Schon bei der Ausführung des durch Patent 59485 geschützten Verfahrens hat sich ergeben, dafs Papier, zu deren Herstellung bei der Leimung gleichzeitig Tannin oder Thonerdesulfat verwendet wurden, nicht fest genug und nicht genügend widerstandsfähig gegen Wasser j war. Es ist deshalb nicht erklärlich, weshalb j Chromalaun zusammen mit dem bereits vor-ί geschlagenen Thonerdesulfat andere Wirkungen j auf die Leimung hervorrufen soll als letzteres allein. Vielmehr ist der Chromalaun aus dem Grunde nicht geeignet, da ja statt der weifsen Thonerdeverbindungen sich grüne bis graue Chro.noxydverbindungen auf dem Zeug niederschlagen werden, so dafs reinweifses Papier sich auf diese Weise nicht herstellen läfst-, daher" hat das Verfahren auch in die Industrie Eingang nicht gefunden, und man hat sich in der Praxis bisher ausschliefslich auf das Undurchlässigmachen des fertigen Papieres mittelst During the execution of the process protected by patent 59485, it became clear that dafs paper, for the manufacture of which at the Sizing at the same time tannin or clay sulfate were used, not firm enough and was not sufficiently resistant to water j. It is therefore inexplicable why j Chrome alum together with the ί proposed clay sulfate have other effects j is supposed to cause gluing than the latter alone. Rather, the chrome alum is from the Basically not suitable, since green to gray compounds are found instead of white alumina compounds Chromium oxide compounds are deposited on the stuff, so that pure white paper cannot be produced in this way, therefore "the process has also been introduced into industry No entry has been found, and in practice one has hitherto exclusively focused on making the finished paper impermeable

Claims

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/ill/ ill

of the so-called Baryir method or by spreading the finishing agent.
Attempts have also been made to use stearin or stearin

: to use acid by saponifying them alone or at the same time as the resin and applied. . ■

However, due to the necessary saponification process, these agents lost just that Property for which it was used, namely that of waterproofing, why This process also does not prove to be of practical value... apart from the fact that Stearic acid is extremely easily transformed into crystalline form. Form ■ "■■ from aqueous solutions retires and on top of that, because of their lo-.

■ ability in alcohol non-alcoholic

power. '>

All of these are the different ones proposed so far and the methods used are eliminated by the present method, which like that Method of patent 59,485 thereon; is based on the sizing and finishing of the stuff be carried out at the same time in the Hollander, so that a post-treatment of the finished Paper is omitted in order to make it impermeable ^ ÄAs a finishing agent Wax, ceresin and especially paraffin, linseed oil, as well as fats and oils, in general, are used those remedies which in and of themselves do not dissolve or emulsify in water but which are better, even if they are not sufficient for finishing purposes Let the quantity emulsify together with the saponified resin, and the better, the more . the aqueous solution of this resin soap is more centered. One or the other of the above Center! is already used to make the finished paper impermeable been. This use is therefore not claimed as new, but rather the use of these funds at the same time "Gluing" is more even in this way and more thoroughly finished paper much simplified and abbreviated procedure is obtained.

However, since the resin soap for paper sizing is only available in a very dilute solution (r up to 6 on 1000) can be used, the said Finishing agents are easily separated out again with this dilution (paraffin e.g. if If only 5 pCt of the resin content were added), it is necessary to also make this notification.

': to be prevented when adding larger quantities of the finishing agent. This is-achieved by, that a resin soap is used which 'possible ^one much freies- resin -or- ■ .a ^ same characteristics - contains ¹ WJe- this estate agent Tests have namely loading

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showed that the more of the finishing agents mentioned can be emulsified in water, ever there is more free resin in the resin soap. The finishing agents become the resin cite added before dissolving in water.

This makes it possible to use a resin soap that z. B. 30 pct. contains free resin, 20 pCt. of Resin content of paraffin, linseed oil or wax or ceresin.

The phenanthrene resin soap produced according to patent specification 118233 is also particularly suitable for this purpose, as the phenanthrene behaves like the free resin towards the finishing agents. For example, if a soap with 35 pCt. free resin and 20 pCt. If phenanthrene is used, then · 30 pCt. the resin content of paraffin can still be emulsified. , '■ ..,' ■ ' . ^: . ';

In what way, according to the new process, an anti-water, alcohol, ether, Benzene and other organic solvents impermeable to fats and oils, as well as whose mixture and compounds (fat colors) are made of insensitive paper illustrated by the example below using phenanthrene. :

100 parts of resin are obtained after adding -:. 20 parts of raw phenanthrene with 9.5 pCt. cal 'cinirter Soda saponified and in still torrid mass is 30 per cent paraffin (solid having a melting point ...;.. 48 ⁰ C.) stirred in. The resin glue produced in this way, at the same time:; ■ also used for finishing; is now used in the same known manner as the usual resin sizes for paper sizing. ^ λ J ;.

The paper obtained does not need any further; Preparation by barrying or brushing ■■■: by other means.

The paraffin can be partly or wholly replaced by the other finishing agents mentioned (wax, ceresin, linseed oil, etc.). It should be noted, however, that wax is very sparingly soluble in alcohol ,. and · "that stearin and ceresin are less beneficial than paraffin and linseed oil.

Patent Claims:. '; · '■' ■ ■■ '■' -. ■■ "} ■ 1. ' Methods for the preparation of L'against ösiin- '·' all kinds gen impermeable paper, characterized in, that the ^{simultaneous:} '■ sizing the paper and Appretirung ^tool: .'mittelst a free - resin and loading.' ^Apt: Finishing agents such as paraffin, linseed oil, wax, ceresin, resin soap containing adhesive is effected. 2. -An embodiment of the method according to Claim 1, characterized in that phenanthrene hair soap is used to produce the resin glue will.