DE257158C - - Google Patents
Info
- Publication number
- DE257158C DE257158C DENDAT257158D DE257158DA DE257158C DE 257158 C DE257158 C DE 257158C DE NDAT257158 D DENDAT257158 D DE NDAT257158D DE 257158D A DE257158D A DE 257158DA DE 257158 C DE257158 C DE 257158C
- Authority
- DE
- Germany
- Prior art keywords
- resin
- solution
- chlorinated
- paper
- chlorinated lime
- 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
Links
- 239000011347 resin Substances 0.000 claims description 24
- 229920005989 resin Polymers 0.000 claims description 24
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 8
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 238000004383 yellowing Methods 0.000 claims description 3
- 238000005660 chlorination reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000007127 saponification reaction Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 7
- VZJVWSHVAAUDKD-UHFFFAOYSA-N Potassium permanganate Chemical compound [K+].[O-][Mn](=O)(=O)=O VZJVWSHVAAUDKD-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000015450 Tilia cordata Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000008149 soap solution Substances 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 229940001607 sodium bisulfite Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- D21H17/62—Rosin; Derivatives thereof
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Es ist eine bekannte Tatsache, daß auch die besten weißen Papiere im Laufe der Zeit einen mehr oder weniger gelblichen Ton annehmen. Dieser Übelstand wird besonders dadurch hervorgerufen, daß gewisse Stoffe, die zum Leimen des Papieres verwendet werden, in erster Linie der heute fast ausschließlich für diesen Zweck verwendete Harzleim, vergilbend wirken. Dieses kommt daher, daßIt is a known fact that even the best of white papers over time take on a more or less yellowish tone. This evil becomes special caused by the fact that certain substances that are used to glue the paper, primarily the resin glue, which is now almost exclusively used for this purpose, yellowing works. This is because
ίο das Harz, welches heute zur Herstellung des Harzleimes dient, diese Vergilbung hervorruft. ίο the resin, which is used today for the production of the Resin glue is used to cause this yellowing.
Präpariert man jedoch das Harz, im wesentlichen Kolophonium, vorher durch eine geeignete Behandlung, so erhält man ein Material, welches späterhin zur Leimung des Papieres verwendet, ein unvergilbbares Papier ergibt.If, however, the resin, essentially rosin, is prepared beforehand by a suitable one Treatment, a material is obtained which can later be used to glue the paper used, results in a non-yellowable paper.
Bei der Präparierung des Harzes werden anscheinend die in den Harzen vorhandenen Doppelbindungen abgesättigt. Als besonders geeignet hat sich z. B. eine Behandlung mit Chlorkalk erwiesen, doch liefert die gleichen Resultate eine Absättigung der Doppelbin^ düngen durch Behandlung mit Kaliumpermanganat. As the resin is prepared, it appears that those present in the resins are removed Double bonds saturated. As has been particularly suitable, for. B. a treatment with Chlorinated lime has been proven, but saturation of the double bin gives the same results fertilize by treatment with potassium permanganate.
Die unten angegebenen Beispiele mögen die Erfindung erläutern.The examples given below are intended to illustrate the invention.
i. Chlorierung des Harzes durch
Chlorkalk.i. Chlorination of the resin by
Chlorinated lime.
Harz wird mit Natronlauge verseift und die Harzseife Unter Kochen in Wasser gelöst. Die Lösung läßt man erkalten und fällt unter Rühren das Harz mit starker Salzsäure im Überschuß, wobei man Sorge trägt, daß die Flüssigkeit sich nicht bis zum Zusammenschmelzen der Harzteilchen erwärmt. Das ausgefällte Harz wird abfiltriert und naß in eine Chlorkalklösung eingerührt, so daß auf ι kg Harz etwa 10 1 Chlorkalklösung von io° Be. (etwa 1200 g Chlorkalk) kommen. In der Chlorkalklösung läßt man das Harz einige Tage und verseift es dann wie gewöhnliches Harz. Das mit Chlorkalk chlorierte Produkt verseift sich äußerst leicht, allerdings etwas bräunlich, und verleiht dem Papier einen Stich ins Gelbe.Resin is saponified with caustic soda and the resin soap is dissolved in water while boiling. The solution is allowed to cool and the resin is precipitated with strong hydrochloric acid while stirring Excess, being careful not to let the liquid melt until it melts the resin particles are heated. The precipitated resin is filtered off and wet in a chlorinated lime solution is stirred in, so that about 10 1 of a chlorine lime solution of ι kg of resin io ° Be. (about 1200 g of chlorinated lime). In The resin is left in the chlorinated lime solution for a few days and then saponified as usual Resin. The product chlorinated with chlorinated lime saponifies extremely easily, albeit somewhat brownish, and gives the paper a yellowish tinge.
2. Oxydation mit Chlorkalk.2. Oxidation with chlorinated lime.
Verseiftes Harz wird unter Kochen in Wasser gelöst, nach dem Erkalten mit starker Salzsäure ausgefällt, abfUtriert und mit so viel Sodalösung versetzt., daß die saure Reaktion verschwindet. Hierauf gibt man das Harz in eine Chlorkalklösung von 10° Be., läßt einige Tage stehen, filtriert das Harz ab und verseift es zur Leimung. Dieses oxydierte Produkt verseift sich spielend, zum Unterschiede von dem chlorierten Produkt aber hell.Saponified resin is dissolved in water while boiling, after cooling with strong hydrochloric acid precipitated, filtered off and mixed with so much soda solution that the acidic reaction disappears. The resin is then placed in a chlorine lime solution of 10 ° Be., Some leaves Stand for days, the resin is filtered off and saponified for sizing. This oxidized product saponifies easily, but unlike the chlorinated product, it is light.
3. Oxydation mit Kaliumpermanganat.3. Oxidation with potassium permanganate.
Zu einer Harzseifenlösung gibt man so viel Kaliumpermanganatlösung, wie theoretisch zur Absättigung der Doppelbindungen im Harze nötig ist (aus der Jodzahl zu berechnen). Hierauf säuert man die durch Braunstein braune Lösung mit Schwefelsäure an, bis alles Harz ausgefällt ist, gibt NatriumbisulfitAs much potassium permanganate solution is added to a resin soap solution as theoretically Saturation of the double bonds in the resin is necessary (to be calculated from the iodine number). The brownstone is then acidified with sulfuric acid until all the resin has precipitated, and sodium bisulfite is added
hinzu bis zur Entfärbung und nitriert das oxydierte Harz ab. Dieses Produkt verseift sich ebenfalls spielend und hell.added to discoloration and the oxidized resin nitrates. This product saponified also playful and bright.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE257158C true DE257158C (en) |
Family
ID=515103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT257158D Active DE257158C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE257158C (en) |
-
0
- DE DENDAT257158D patent/DE257158C/de active Active
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