DE201915C - - Google Patents

Info

Publication number
DE201915C
DE201915C DENDAT201915D DE201915DA DE201915C DE 201915 C DE201915 C DE 201915C DE NDAT201915 D DENDAT201915 D DE NDAT201915D DE 201915D A DE201915D A DE 201915DA DE 201915 C DE201915 C DE 201915C
Authority
DE
Germany
Prior art keywords
acid
dry
bath
cellulose
solution
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
Application number
DENDAT201915D
Other languages
German (de)
Publication of DE201915C publication Critical patent/DE201915C/de
Active legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08Cellulose derivatives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18Manufacture of films or sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

-M 201915 KLASSE 39 ö. -M 201915 CLASS 39 ö.

Bei der Herstellung von Blättern, Bändern usw. aus einer Lösung von Zellulose in Kupferammoniakflüssigkeit wurde bisher so verfahren, daß man diese Lösung unter Druck aus feinen öffnungen, Spalten usw. unmittelbar in eine koagulierend wirkende Flüssigkeit, beispielsweise in Schwefelsäure oder Essigsäure, i. austreten ließ. Dieses bekannte Verfahren ergibt Körper. von geringer Festigkeit sowohlWhen making sheets, ribbons, etc. from a solution of cellulose in Copper ammonia liquid has hitherto been used in such a way that this solution is pressurized from fine openings, crevices etc. directly into a coagulating liquid, for example in sulfuric acid or acetic acid, i. let out. This known method gives body. of low strength both

ίο im frischen als auch im vollkommen erhärteten und trockenen Zustande.ίο in the fresh as well as in the completely hardened and dry conditions.

Den Gegenstand vorliegender Erfindung bildet demgegenüber ein Verfahren, welches darin besteht, daß man die plastische Masse nach ihrer Formgebung, ehe man sie in das koagulierende Bad bringt, vollkommen austrocknen läßt, wobei durch den Einfluß der Luft ein Gerinnen unter Erzielung einer bedeutenden Festigkeit stattfindet, und daßIn contrast, the subject matter of the present invention is a method which consists in the plastic mass being shaped according to its shape before it is put into the coagulating bath brings, lets it dry out completely, being by the influence of the Air coagulation takes place to achieve significant strength, and that

ao man dann die getrocknete Masse bzw. die daraus hergestellten Körper in ein Säurebad, beispielsweise in ein solches von verdünnter Salzsäure, bringt, in welchem sich das in der Masse befindliche Kupfer leicht und vollkommen löst, worauf man durch Waschen in Wasser die Säure entfernt.ao you then put the dried mass or the body made from it in an acid bath, for example in one of dilute hydrochloric acid, in which the in the The copper in the bulk dissolves easily and completely, which is then followed by washing in Water removes the acid.

Die praktische Ausführung des Verfahrens vollzieht sich folgendermaßen:The practical implementation of the procedure takes place as follows:

Zur Erzeugung von Häutchen beliebiger Gestalt wird die kupferammoniakalische ZeI-luloselösung auf der Oberfläche eines entsprechend gestalteten festen Körpers ausgebreitet, d. h. der feste Körper damit überzogen. Den Überzug läßt man auf dem Körper trocknen, bringt ihn dann in getrocknetem Zustande in das Säurebad und später in das Wasserbad. Nach dem Trocknen kann der Überzug als fertiger Körper von dem Modellkörper abgelöst werden. Die so hergestellten Häutchen sind außerordentlich zart, dabei von großer Festigkeit, fast unentflammbar, durchscheinend und zur Herstellung der verschiedensten Dinge geeignet.The copper ammonia cellulose solution is used to produce skins of any shape spread on the surface of a suitably shaped solid body, d. H. the solid body covered with it. The The coating is left to dry on the body and then brought into the dry state the acid bath and later in the water bath. After drying, the coating can be used as a finished body can be detached from the model body. The membranes made in this way are extraordinarily delicate, at the same time of great strength, almost non-flammable, translucent and suitable for making all kinds of things.

Claims (1)

Patent-Anspruch:Patent claim: 4545 Verfahren zur Herstellung von Blättern, Bändern oder Häutchen aus Auflösungen von Zellulose in Kupferoxydammoniak, dadurch gekennzeichnet, daß diese Gegenstände vor der üblichen. Behandlung mit Säure einer Trocknung unterworfen werden. Process for the production of sheets, ribbons or membranes from dissolutions of cellulose in copper oxide ammonia, characterized in that these objects before the usual. Treatment with acid can be subjected to drying.
DENDAT201915D Active DE201915C (en)

Publications (1)

Publication Number Publication Date
DE201915C true DE201915C (en)

Family

ID=464438

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT201915D Active DE201915C (en)

Country Status (1)

Country Link
DE (1) DE201915C (en)

Similar Documents

Publication Publication Date Title
DE1074818B (en)
DE811983C (en) Process for the production of threads or fibers from animal or vegetable proteins
DE807395C (en) Process for the impregnation of fibers with synthetic, chain-shaped polyamides
DE2652989C3 (en) Cation exchange capacity fibers and processes for their manufacture
DE2400529A1 (en) METHOD OF TANNING EDIBLE COLLAGEN SHELLS
DE201915C (en)
DE898658C (en) Process for the production of protein threads
DE908905C (en) Process for the production of artificial threads or fibers from vegetable protein optionally mixed with milk casein, especially soy casein
DE2246829B2 (en) Process for the production of molded articles from cellulose hydrate
DE909491C (en) Process for the production of threads or fibers from casein
DE1033174B (en) Process for achieving non-slip knots or crossings in the manufacture of nets, tricot fabrics, etc. Like. Made of single-stranded polyamide threads
DE908852C (en) Process for making wool shrink-proof
DE2324687B2 (en) Process for dyeing cellulose products
DE898947C (en) Process for the production of artificial threads from peanut globulin
DE420040C (en) Process for the production of vulcanized rubber compounds
DE972099C (en) Process for the production of easily colorable acrylonitrile polymers
DE413093C (en) Process for decoiling silk cocoons
DE570894C (en) Process for the production of molded synthetic masses by coagulating viscose
DE2539909A1 (en) METHOD OF MANUFACTURING REINFORCED ARTIFICIAL SAUSAGE SHELLS
DE1117255B (en) Process for the production of cellulose xanthate acetic acid threads
DE2447757A1 (en) MOLDED BODY MADE OF CELLULOSE HYDRATE WITH A PLASTIC COATING FROM CHEMICALLY MODIFIED PROTEIN AND THE PROCESS FOR ITS PRODUCTION
DE679829C (en) Process for the production of a foamable and bakeable protein product
DE454928C (en) Process for the treatment of vegetable fibers, yarns or fabrics
DE667556C (en) Process for the production of webs, fabrics or other textiles using threads obtained from animal skin
DE665679C (en) Process for the production of synthetic threads from viscose