AT79462B - Process for bleaching paper yarn or fabrics and the like therefrom. - Google Patents
Process for bleaching paper yarn or fabrics and the like therefrom.Info
- Publication number
- AT79462B AT79462B AT79462DA AT79462B AT 79462 B AT79462 B AT 79462B AT 79462D A AT79462D A AT 79462DA AT 79462 B AT79462 B AT 79462B
- Authority
- AT
- Austria
- Prior art keywords
- fabrics
- hours
- paper yarn
- therefrom
- bleaching paper
- Prior art date
Links
- 238000004061 bleaching Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 4
- 239000004744 fabric Substances 0.000 title claims 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000382 dechlorinating effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Paper (AREA)
Description
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Es beginnt das Säuren (das Entchloren). In einem grossen Holzkiibel werden gleiche Mengen Schwefelsäure (60 Bé) und Salzsäure (18"Be) in kaltem Wasser aufgelöst und diese Lösung wird ungefähr zwei Stunden lang über das Garn geschüttet. Sie läuft nach und nach durch den offenstehenden Hahn des Bleichkessels ab.
Es erfolgt nun wieder eine Spülung während etwa einer Stunde mit kaltem Wasser und hierauf folgt schliesslich das Entsäuren. Es wird kohlensaures Natron in einem Bassin in eine 2- bis 5%ige Lösung gebracht, dann wird die Lauge mittels einer Pumpe dem Bleichkessel zuerst lau und nach und nach immer heisser werdend ungefähr zwei Stunden lang zugeführt.
Hierauf wird das Garn noch während zwei Stunden in kaltem Wasser gespült. Damit ist der Bleich prozeB beendet.
Das Bleichgut wird dann lagenweise herausgenommen, und es werden dann noch die sämtlichen beschriebenen Arbeitsgänge ein oder nötigenfalls mehrere Male wiederholt. Sch ! ipü ! ich erfolgt das Trocknen in Trockenkammern mit Hilfe von Luftsaug- und Druckvorrichtungen oder besser mit Hilfe der Windtrockner unter Mitwirkung des Sonnenlichtes, wodurch die Bleichwirkung noch erhöht wird.
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Acid (dechlorinating) begins. In a large wooden barrel, equal amounts of sulfuric acid (60 Be) and hydrochloric acid (18 "Be) are dissolved in cold water and this solution is poured over the yarn for about two hours. It gradually drains off through the open tap of the bleaching kettle.
It is now rinsed again for about an hour with cold water and this is finally followed by deacidification. Carbonate of soda is brought into a basin in a 2 to 5% solution, then the lye is fed to the bleaching kettle by means of a pump, initially lukewarm and gradually getting hotter for about two hours.
The yarn is then rinsed in cold water for a further two hours. This ends the bleaching process.
The material to be bleached is then removed in layers, and all of the operations described are then repeated one or, if necessary, several times. Sch! ipü! I the drying takes place in drying chambers with the help of air suction and pressure devices or better with the help of the wind dryer with the help of sunlight, which increases the bleaching effect.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE79462X | 1916-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT79462B true AT79462B (en) | 1919-12-29 |
Family
ID=5638663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT79462D AT79462B (en) | 1916-08-31 | 1917-01-25 | Process for bleaching paper yarn or fabrics and the like therefrom. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT79462B (en) |
-
1917
- 1917-01-25 AT AT79462D patent/AT79462B/en active
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