DE353948C - Process for the pretreatment of cellulose for the production of easily filterable viscose - Google Patents

Process for the pretreatment of cellulose for the production of easily filterable viscose

Info

Publication number
DE353948C
DE353948C DE1920353948D DE353948DA DE353948C DE 353948 C DE353948 C DE 353948C DE 1920353948 D DE1920353948 D DE 1920353948D DE 353948D A DE353948D A DE 353948DA DE 353948 C DE353948 C DE 353948C
Authority
DE
Germany
Prior art keywords
cellulose
production
pretreatment
easily filterable
viscose
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.)
Expired
Application number
DE1920353948D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE353948C publication Critical patent/DE353948C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/08—Alkali cellulose
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • D01F2/08—Composition of the spinning solution or the bath

Description

DEUTSCHES REICHGERMAN EMPIRE

AUSGEGEBEN AM 27. MAI 1922ISSUED ON MAY 27, 1922

REICHSPATENTAMTREICH PATENT OFFICE

PATENTSCHRIFTPATENT LETTERING

KLASSE 29 b GRUPPECLASS 29 b GROUP

Carolus Lambertus Stulemeyer in Breda, Holland. Verfahren zur Vorbehandlung von Zellulose zwecks Herstellung leicht filtrierbarer Viskose. Carolus Lambertus Stulemeyer in Breda, Holland. Process for the pretreatment of cellulose for the production of easily filterable viscose.

Zusatz zum Patent 352962.Addendum to patent 352962.

Patentiert im Deutschen Reiche vom 21. Januar 1920 ab. ' Längste Dauer: 20. Januar 1935.Patented in the German Empire on January 21, 1920. 'Longest duration: January 20, 1935.

In dem Hauptpatent 352962 ist ein Verfahren geschützt, nacih welchem die für die Herstellung von Viskose verwendete Zellulose derartig mit Alkalilauge behandelt wird, daß vor oder während der Einwirkung der Alkalilauge evakuiert wird.In the main patent 352962 there is a method protected, according to which the cellulose used for the production of viscose is treated with alkali in such a way that before or during the action of the Alkali solution is evacuated.

Das vorliegende Verfahren bewirkt ein nochThe present proceedings cause a still

sahnelleres und gründlicheres Eindringen der Alkalilauge in die einzelnen Zellen der Zellulose dadurch, daß man nacih dem Evakuieren Druck einwirken läßt. Man kann nach dem Evakuieren das Gefäß, in welchem die Einwirkung der Alkalilauge stattfindet, mit dem Inhalt plötzlich unter Druck setzen. Das Eindringen der Alkalilauge in die Zellen der Fasern geschieht fast augenblicklich.Creamier and more thorough penetration of the alkali into the individual cells of the cellulose by applying pressure after evacuation. After evacuation, one can see the vessel in which the action the alkali takes place, with the contents suddenly put under pressure. The penetration of the alkali into the cells of the Fibring happens almost instantly.

Claims (1)

Patent-Anspruch:Patent claim: Ausbildung des Verfahrens nach dem Hauptpatent 352962, dadurch gekennzeichnet, daß nach dem Evakuieren eine Einwirkung von Druck stattfindet.Formation of the method according to the main patent 352962, characterized in that that after evacuation there is an action of pressure. BERLIN. GEPBUCKT IN DER REICHSDRUCKEREI.BERLIN. PACKED IN THE REICHSDRUCKEREI.
DE1920353948D 1920-01-10 1920-01-21 Process for the pretreatment of cellulose for the production of easily filterable viscose Expired DE353948C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR522182T 1920-01-10
DE352962T 1920-01-21
CH86848T 1920-01-22
GB2056/20A GB167199A (en) 1920-01-10 1920-01-22 Improvements in processes for the treatment of viscose

Publications (1)

Publication Number Publication Date
DE353948C true DE353948C (en) 1922-05-27

Family

ID=40361485

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1920352962D Expired DE352962C (en) 1920-01-10 1920-01-21 Process for the pretreatment of cellulose for the production of easily filterable viscose
DE1920353948D Expired DE353948C (en) 1920-01-10 1920-01-21 Process for the pretreatment of cellulose for the production of easily filterable viscose

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1920352962D Expired DE352962C (en) 1920-01-10 1920-01-21 Process for the pretreatment of cellulose for the production of easily filterable viscose

Country Status (4)

Country Link
CH (1) CH86848A (en)
DE (2) DE352962C (en)
FR (2) FR522182A (en)
GB (2) GB167199A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971888C (en) * 1949-11-21 1959-04-09 Shozo Dr Tachikawa Process for the production of artificial threads with a high degree of polymerization by spinning highly viscous viscose with a low alkali content

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530403A (en) * 1946-11-21 1950-11-21 Stewart E Seaman Continuous xanthation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971888C (en) * 1949-11-21 1959-04-09 Shozo Dr Tachikawa Process for the production of artificial threads with a high degree of polymerization by spinning highly viscous viscose with a low alkali content

Also Published As

Publication number Publication date
FR23053E (en) 1921-10-03
GB167199A (en) 1921-07-22
CH86848A (en) 1920-10-16
DE352962C (en) 1922-05-09
FR522182A (en) 1921-07-27
GB167201A (en) 1921-08-02

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