AT36839B - Process for making a paper glue. - Google Patents
Process for making a paper glue.Info
- Publication number
- AT36839B AT36839B AT36839DA AT36839B AT 36839 B AT36839 B AT 36839B AT 36839D A AT36839D A AT 36839DA AT 36839 B AT36839 B AT 36839B
- Authority
- AT
- Austria
- Prior art keywords
- making
- waste liquor
- glue
- paper glue
- zinc
- Prior art date
Links
- 239000003292 glue Substances 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 4
- 239000002699 waste material Substances 0.000 claims description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000004040 coloring Methods 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000010446 mirabilite Substances 0.000 description 3
- RSIJVJUOQBWMIM-UHFFFAOYSA-L sodium sulfate decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=O RSIJVJUOQBWMIM-UHFFFAOYSA-L 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
Landscapes
- Paper (AREA)
Description
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Die Menge Glaubersalz, die zugesetzt werden muss, richtet sich nach der Zusammensetzung der Ablauge, das heisst dem Gehalt an Kalk und Magnesia ; in der Regel'sind 2 kg getrocknetes Glaubersalz auf 1 Hektoliter Ablauge ausreichend. Wenn diese Lösung erhitzt wird, entsteht in der Regel eine Fällung, die sich beim-Erkälteu meist wieder löst.
Bei der Herstellung kann auch eine andere Reihenfolge der Zusätze der einzelnen Bestandteile erfolgen, doch hat sich die angegebene als die beste bewährt.
Die Leimfällungen geben bei diesem Verfahren dem Papier geringe dunkler Färbungen. Es ist nun festgestellt worden, dass man die Entstehungen der dunkleren, Färbung grösstenteils verhindern bezw. beseitigen kann, wenn man den, Harzleim oder den Gerbleim und meist auch die Ablauge mit metallischem Zink, am besten in Form von feinem Zinkmetallpulver, in ganz geringen Mengen z.. B. 0, 050/0 des, Körpers versetzt. A ! s Zinkpulver lässt sich auch der im Handel erhältliche Zinkstaub verwenden.
Es ist zweckmässig, der Ablauge der Sulfitzellstofffabrikation in bekannt'er'Weise, beim Eindampfen ganz geringe Mengen Soda bis nahe zur neutralen Reaktion derselben zuzusetzen, um das Entweichen der darin vorhandenen schwefligen Säure zu verhindern. Eine grössere Menge Soda in der Ablauge wirkt nachteilig durch Entstehung einer schwer zu beseitigenden Bräunung in derselben.
PATENT-ANSPRÜCHE :
EMI2.1
1. Verfahren zur Herstellung von Papierleim (Gerbleim), dadurch gekennzeichnet, dass Sulfitablauge, die zur Unschädlichmachung des Kalkes Glaubersalz enthält, vermengt wird mit einer Lösung von Harz und Horn, welche zweckmässig durch Lösung von Horn und Harz in Soda oder von Horn in mit überschüssiger Soda gewonnenem Harzleim unter 1000 hergestellt wird.
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The amount of Glauber's salt that has to be added depends on the composition of the waste liquor, i.e. the lime and magnesia content; As a rule, 2 kg of dried Glauber's salt per 1 hectolitre of waste liquor is sufficient. When this solution is heated, a precipitate usually arises, which usually dissolves again when it is cold.
The order in which the individual constituents are added can also be done in a different order, but the one specified has proven to be the best.
In this process, the glue precipitates give the paper a slight darker coloration. It has now been found that the formation of the darker, coloration can be largely prevented or. can be eliminated if the resin glue or tanning glue and usually also the waste liquor are mixed with metallic zinc, preferably in the form of fine zinc metal powder, in very small amounts, e.g. 0.050/0 of the body. A! s Zinc powder can also be used with commercially available zinc dust.
It is advisable to add very small amounts of soda to the waste liquor from the sulphite pulp factory in a known way during evaporation until it reacts almost neutral in order to prevent the sulphurous acid from escaping. A larger amount of soda in the waste liquor has a disadvantageous effect by producing a browning in the same that is difficult to remove.
PATENT CLAIMS:
EMI2.1
1. A process for the production of paper glue (Gerbleim), characterized in that sulphite waste liquor, which contains Glauber's salt to render the lime harmless, is mixed with a solution of resin and horn, which is expediently made by dissolving horn and resin in soda or horn in with excess soda-derived resin glue is produced below 1000.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT36839T | 1905-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT36839B true AT36839B (en) | 1909-04-10 |
Family
ID=3553947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT36839D AT36839B (en) | 1905-06-02 | 1905-06-02 | Process for making a paper glue. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT36839B (en) |
-
1905
- 1905-06-02 AT AT36839D patent/AT36839B/en active
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