AT60450B - Process for producing high-gloss threads, films and the like from viscose by means of a spinning bath made from saturated salt solution and sulfuric acid. - Google Patents
Process for producing high-gloss threads, films and the like from viscose by means of a spinning bath made from saturated salt solution and sulfuric acid.Info
- Publication number
- AT60450B AT60450B AT60450DA AT60450B AT 60450 B AT60450 B AT 60450B AT 60450D A AT60450D A AT 60450DA AT 60450 B AT60450 B AT 60450B
- Authority
- AT
- Austria
- Prior art keywords
- viscose
- sulfuric acid
- gloss
- threads
- films
- Prior art date
Links
Landscapes
- Artificial Filaments (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung hochglänzender Fäden, Films und dgl. aus Viskose mittels eines Spinnbades aus gesättigter Salzlösung und Schwefelsäure.
EMI1.1
setzt man demselben Säure zu, so erhält man, wie Versuche gezeigt haben, nicht in jedem Fall einen brauchbaren Faden.
EMI1.2
hisulfat auf, so dass der Gehalt an freier Schwefelsäure etwa : zozo beträgt (siehe Patentschrift Nr. 33678), so bewirkt ein solches Spinnbad, wie Versuche ergeben haben, eine sofortige Umsetzung der Viskose in wasserunlösliches Zellulosellydrat, ohne dass aber der Faden glänzend wird.
Nimmt man den Schwefelsäurezl1satz zu gesättigter Natriamsulfatlösnng geringer, z. B. 6 bis 7 , so tritt zwar keine Umsetzung der Viskose in wasserunlösliches Zellulosehydrat mehr ein, sondern nur ein Aussalzen der Viskose. Es ergeben sich aber Schwefelabscheidungen in Form eines bläulichen Schillers in den obersten Schichten des Produktes.
Löst man den Schwefel heraus. ho bleiben matte Stellen zurück, die den Glanz des Endproduktes verringern.
Ein Ansäuern von gesättigter Salzlösung mit nur geringem Schwefelsäurezusatz
EMI1.3
auch keinerlei Schwefelausscheidungen auf der Oberfläche des Produktes bedingt.
Um die Umsetzung des letzteren in wasserunlösliches Zellulosehydrat zu bewirken, wird es der üblichen Nachbehandlung unterworfen (Erwärmen, Behandlung in einem Kochsalz-Sulfhydratbad oder dgl.).
Das gewonnene Endprodukt ist hochglänzend, fest und elastisch.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for producing high-gloss threads, films and the like from viscose by means of a spinning bath made from saturated salt solution and sulfuric acid.
EMI1.1
if acid is added to it, as experiments have shown, a usable thread is not always obtained.
EMI1.2
Hisulfate, so that the content of free sulfuric acid is about: zozo (see patent specification No. 33678), such a spinning bath, as experiments have shown, causes an immediate conversion of the viscose into water-insoluble cellulose allydrate without the thread becoming shiny.
If the sulfuric acid addition to saturated sodium sulfate solution is reduced, e.g. B. 6 to 7, the viscose is no longer converted into water-insoluble cellulose hydrate, but only the viscose is salted out. However, there are sulfur deposits in the form of a bluish shimmer in the top layers of the product.
Dissolve the sulfur. dull areas remain, which reduce the gloss of the end product.
Acidification of saturated salt solution with only a small amount of sulfuric acid added
EMI1.3
no sulfur precipitates on the surface of the product.
In order to bring about the conversion of the latter into water-insoluble cellulose hydrate, it is subjected to the usual post-treatment (heating, treatment in a sodium chloride-sulfhydrate bath or the like).
The end product obtained is high-gloss, firm and elastic.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60450X | 1911-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT60450B true AT60450B (en) | 1913-08-11 |
Family
ID=5630470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT60450D AT60450B (en) | 1911-06-26 | 1912-04-23 | Process for producing high-gloss threads, films and the like from viscose by means of a spinning bath made from saturated salt solution and sulfuric acid. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT60450B (en) |
-
1912
- 1912-04-23 AT AT60450D patent/AT60450B/en active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT60450B (en) | Process for producing high-gloss threads, films and the like from viscose by means of a spinning bath made from saturated salt solution and sulfuric acid. | |
DE903737C (en) | Process for the production of threads or fibers from casein | |
DE885460C (en) | Process for making threads or fibers from milk or soybean casein insoluble with chromium salts | |
DE267731C (en) | ||
AT31388B (en) | Process for pickling wool with chromic acid salts or alumina compounds and the like. like | |
DE464268C (en) | Process for the production of copper oxide ammonia artificial silk | |
AT84653B (en) | Process for the production of flexible, storable iron leather. | |
AT45591B (en) | Process for the preparation of silk fibroin solutions. | |
AT99193B (en) | Spinning bath for felling synthetic threads, films, ribbons and the like. Like. Made of viscose. | |
AT63722B (en) | Process for the production of artificial threads, ribbons, films, etc. from viscose. | |
AT72215B (en) | Process for the production of shiny threads from raw viscose using warm mineral acid. | |
AT79316B (en) | Process for the production of white color bodies from titanium hydrate compounds. | |
DE351871C (en) | Process for the production of synthetic threads made of viscose | |
DE615665C (en) | Process for the production of protective coatings on zinc and galvanized objects | |
AT57715B (en) | Process for the production of artificial threads, ribbons, films, etc. from viscose solutions. | |
AT102286B (en) | Process for the production of hard alloys which u. a. Contain carbon and silicon. | |
AT166477B (en) | Process for insolubilizing fibers of milk or soybean casein with chromium salts | |
AT75820B (en) | Process for the production of a fertilizer. | |
DE517021C (en) | Process for the production of metallically shiny, opaque shrink capsules | |
AT62643B (en) | Process for the production of artificial silk and the like from cellulose solutions containing copper ammonium. | |
DE337984C (en) | Process for the production of threads from viscose | |
AT112734B (en) | Process for the preparation of monocamphorates of the Solanaceae alkaloids. | |
AT32377B (en) | Process for the production of artificial horsehair or film. | |
AT121992B (en) | Process for the production of iron-free titanium dioxide. | |
AT53817B (en) | Process for manufacturing incandescent mantles. |