DE316098C - - Google Patents

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Publication number
DE316098C
DE316098C DE1915316098D DE316098DA DE316098C DE 316098 C DE316098 C DE 316098C DE 1915316098 D DE1915316098 D DE 1915316098D DE 316098D A DE316098D A DE 316098DA DE 316098 C DE316098 C DE 316098C
Authority
DE
Germany
Prior art keywords
enzymes
cotton
treatment
pancreatin
pancreas
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
DE1915316098D
Other languages
German (de)
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 filed Critical
Application granted granted Critical
Publication of DE316098C publication Critical patent/DE316098C/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
    • D01C1/00—Treatment of vegetable material
    • D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Detergent Compositions (AREA)

Description

Um Rohbaumwolle bleichen zu können, wird sie vorher in alkalischen Flüssigkeiten meistens unter Luftabschluß gekocht. Dadurch werden die fett- und wachsartigen Stoffe sowie Pectinstoffe, welche das Bleichen hindern, aufgeschlossen. Diese Behandlung wird mit dem Wort »bauchen« bezeichnet, und nach diesem Bäuchen erfolgt das Bleichen mit Oxydationsmitteln, wie Chlor, oder Reduktionsmitteln, wie schweflige Säure. Das Bäuchen erfordert große Apparatur und viel Dampf und ist ziemlich umständlich.In order to be able to bleach raw cotton, it is first put in alkaline liquids mostly cooked in the absence of air. This will make the fatty and waxy Substances as well as pectin substances, which prevent bleaching, opened up. This treatment is denoted by the word "belly", and after this belly the bleaching takes place with oxidizing agents, such as chlorine, or reducing agents, such as sulphurous acid. That Bulging requires large equipment and a lot of steam and is quite cumbersome.

Es wurde gefunden, daß das Bäuchen, d. h. die Behandlung mit alkalischen Flüssigkeiten, mit Vorteil durch Behandlung mit den Enzymen der Bauchspeicheldrüse ersetzt werden kann. Man weicht die rohe Baumwolle einige Stunden in einer o, 1 prozentigen wäßrigen Lösung von Pankreatin bei 20 bis 400 C und bleicht dann mit den bekannten Bleichmitteln. Die Bleichung tritt im Vergleich mit der ge- \vöhnlich gebauchten Baumwolle auffallend leicht ein, was um so mehr überrascht, als die mit Pankreatin behandelte Baumwolle sich äußerlich von roher Baumwolle nur wenig unterscheidet. Je nach der Pankreatinkonzentration dauert die Behandlung eine bis mehrere Stunden. Die Vorteile liegen auf der Hand: es fällt weg die Apparatur und der Dampfverbrauch, es wird Zeit gewonnen, und die Baumwolle wird weniger angegriffen. Man kann die Enzyme in alkalischer, neutraler und schwachsaurer Lösung wirken lassen,, man kann auch zur Unterstützung der Wirkung Salze in verschiedenen Konzentrationen zusetzen und wird überhaupt von den bekannten Erfahrungen über die die Enzymwirkung begünstigenden und hemmenden Faktoren sachgemäß Gebrauch machen. Statt der Enzyme der Bauchspeicheldrüse kann man auch ähnlich wirkende Enzyme anderer Herkunft anwenden, z. B. Papayotin, Rizinusfermente und andere.It has been found that the tummy, ie the treatment with alkaline liquids, can advantageously be replaced by treatment with the enzymes of the pancreas. It softens the raw cotton few hours in a o, 1 percent aqueous solution of pancreatin at 20 to 40 0 C and then bleaches with the known bleach. The bleaching occurs remarkably easily in comparison with the usually bellied cotton, which is all the more surprising since the cotton treated with pancreatin differs only little externally from raw cotton. Depending on the pancreatin concentration, the treatment lasts from one to several hours. The advantages are obvious: there is no need for equipment or steam, time is saved and the cotton is less affected. You can let the enzymes work in alkaline, neutral and weakly acidic solutions, you can also add salts in various concentrations to support the effect and you will generally make appropriate use of the known experience about the factors promoting and inhibiting the enzyme effect. Instead of the enzymes of the pancreas, one can also use similarly acting enzymes from other sources, e.g. B. papayotin, castor ferments and others.

An Stelle der Dauerpräparate kann man ebenso die frischen Organe oder Pflanzenteile verwenden. Auch kann man die bekannten wasser- und säureunlöslichen Fällungsprodukte, wie beispielsweise die mit dem Bauchspeicheldrüsenferment erhaltene Gerbsäurefällung, verwenden, die bei der Einwirkung schwacher Alkalien eine wirksame Enzymlösung liefert.Fresh organs or parts of plants can also be used in place of the permanent preparations use. You can also use the well-known water- and acid-insoluble precipitation products, such as the tannic acid precipitate obtained with the pancreatic ferment, use which, when exposed to weak alkalis, is an effective enzyme solution supplies.

Claims (1)

PATENT-Anspruch :'PATENT claim: ' Verfahren zur Vorbehandlung von Rohbaumwolle vor dem Bleichen, dadurch gekennzeichnet, daß man sie mit den Enzymen der Bauchspeicheldrüse oder ähnlich wirkenden Enzymen behandelt.Process for the pretreatment of raw cotton before bleaching, characterized in, that they are treated with the enzymes of the pancreas or similar enzymes.
DE1915316098D 1915-03-30 1915-09-30 Expired DE316098C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE316098T 1915-03-30

Publications (1)

Publication Number Publication Date
DE316098C true DE316098C (en) 1919-11-13

Family

ID=32235220

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1915316098D Expired DE316098C (en) 1915-03-30 1915-09-30

Country Status (3)

Country Link
DE (1) DE316098C (en)
FR (1) FR512570A (en)
GB (1) GB100224A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946881C (en) * 1952-10-16 1956-08-09 Boehme Fettchemie G M B H Process for pre-cleaning raw cotton
DE1018834B (en) * 1953-01-08 1957-11-07 Boehme Fettchemie Gmbh Process for pre-cleaning cotton material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL339428A1 (en) * 1997-09-29 2000-12-18 Novo Nordisk Biochem Inc Treatment of cellulosic materials by means of cellulases

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946881C (en) * 1952-10-16 1956-08-09 Boehme Fettchemie G M B H Process for pre-cleaning raw cotton
DE1018834B (en) * 1953-01-08 1957-11-07 Boehme Fettchemie Gmbh Process for pre-cleaning cotton material

Also Published As

Publication number Publication date
FR512570A (en) 1921-01-26
GB100224A (en) 1916-09-07

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