DE1267656B - Process for the simultaneous desizing and bleaching of starch-sized fabrics with enzymatic desizing agents and chlorites - Google Patents

Process for the simultaneous desizing and bleaching of starch-sized fabrics with enzymatic desizing agents and chlorites

Info

Publication number
DE1267656B
DE1267656B DEP1267A DE1267656A DE1267656B DE 1267656 B DE1267656 B DE 1267656B DE P1267 A DEP1267 A DE P1267A DE 1267656 A DE1267656 A DE 1267656A DE 1267656 B DE1267656 B DE 1267656B
Authority
DE
Germany
Prior art keywords
desizing
starch
bleaching
chlorites
simultaneous
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.)
Pending
Application number
DEP1267A
Other languages
German (de)
Inventor
Karl-Heinz Lange
Dr Walter Wunder
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Priority to DEP1267A priority Critical patent/DE1267656B/en
Publication of DE1267656B publication Critical patent/DE1267656B/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06LDRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/12Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
    • D06L1/14De-sizing
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06LDRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D06L4/22Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
    • D06L4/24Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide
    • D06L4/26Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide combined with specific additives

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Description

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

AUSLEGESCHRIFTEDITORIAL

Int. Cl.: Int. Cl .:

Nummer:
Aktenzeichen:
Anmeldetag:
Auslegetag:
Number:
File number:
Registration date:
Display day:

D 061D 061

Deutsche Kl.: 8 i - 2German class: 8 i - 2

1267 656
P 12 67 656.1-43
17. August 1964
9. Mai 1968
1267 656
P 12 67 656.1-43
17th August 1964
May 9, 1968

Die Erfindung betrifft ein Verfahren zum gleichzeitigen Entschlichten und Bleichen von stärkegeschlichteten Geweben mit enzymatischen Entschlichtungsmitteln und Chloriten; das Verfahren besteht darin, daß man die stärkegeschlichteten Gewebe mit einer schwach alkalischen wäßrigen Chloritlösung, welche Bakterienamylase und einen bei der Chloritbleiche üblichen Aktivator enthält, tränkt, dann abquetscht und schlagartig auf Temperaturen zwischen 90 und 1000C erhitzt.The invention relates to a method for simultaneous desizing and bleaching of starch-sized fabrics with enzymatic desizing agents and chlorites; the method is that it contains the stärkegeschlichteten fabric with a weakly alkaline aqueous solution of chlorite, which Bakterienamylase and customary in chlorite bleaching activator, soaked, then squeezed off and abruptly heated to temperatures between 90 and 100 0 C.

Die erforderlichen Mengen an Bakterienamylase und an Chloriten, insbesondere Natriumchlorit, richten sich nach den jeweils vorliegenden Geweben und lassen sich durch Vorversuche leicht ermitteln. Als Aktivatoren seien beispielsweise Ammoniumsulfat und Monochloracetamid genannt. Die Zeit, während der die Gewebe auf Temperaturen zwischen 90 und 100° C gehalten werden, beträgt im allgemeinen 30 bis 60 Minuten. Für die üblicherweise abschließend vorgenommene Wäsche der Gewebe bei Kochtempe- ao ratur verwendet man zweckmäßig nichtionogene oberflächenaktive Verbindungen.Direct the required amounts of bacterial amylase and chlorites, especially sodium chlorite depending on the fabrics present and can easily be determined by preliminary tests. as Examples of activators are ammonium sulfate and monochloroacetamide. The time during The temperature at which the fabrics are kept between 90 and 100 ° C. is generally 30 up to 60 minutes. For the final washing of the fabrics at boiling temperature It is advisable to use nonionic surface-active compounds.

Es ist bereits bekannt, das Entschlichten und Bleichen von stärkegeschlichteten Geweben in der Weise durchzuführen, daß man die Gewebe mit einer neutralen Chloritbleichflotte, welche enzymatische Entschlichtungsmittel — z. B. Pankreasamylase, gegebenenfalls in Mischung mit Bakterienamylasen —, die im neutralen Bereich bei Temperaturen unter 60° C wirksam sind, sowie erst oberhalb von 60° C säureabspaltende Substanzen enthält, tränkt, dann abquetscht und anschließend allmählich auf Temperaturen von etwa 75 bis 97° C erhitzt. Gegenüber diesem Verfahren zeichnet sich das erfindungsgemäße Verfahren dadurch aus, daß es gestattet, innerhalb einer Stunde eine bessere Bleichwirkung bei praktisch gleich gutem Entschlichtungseffekt zu erzielen.It is already known to desize and bleach starch-sized fabrics in this way carry out that the fabric with a neutral chlorite bleaching liquor, which enzymatic desizing agent - e.g. B. pancreatic amylase, optionally mixed with bacterial amylases - the are effective in the neutral range at temperatures below 60 ° C, as well as acid-releasing ones only above 60 ° C Contains substances, soaks, then squeezes and then gradually increases to temperatures heated from about 75 to 97 ° C. Compared to this method, the method according to the invention is distinguished Method in that it allows a better bleaching effect at practically within an hour to achieve equally good desizing effect.

Beispielexample

Ein mit Kartoffelmehl geschlichteter, Schalen enthaltender Baumwollnessel wird mit einer Lösung getränkt, die im Liter 15 g Natriumchlorit, 8 g Bakterienamylase, 1 g Chloracetamid und 4 g oberflächenaktives Paraffinsulfonat als Netzmittel enthält. Das Gewebe wird dann auf 100"Vo Gewichtszunahme Verfahren zum gleichzeitigen Entschlichten und
Bleichen von stärkegeschlichteten Geweben mit
enzymatischen Entschlichtungsmitteln und
Chloriten
A cotton nettle sized with potato flour and containing peel is soaked in a solution containing 15 g of sodium chlorite, 8 g of bacterial amylase, 1 g of chloroacetamide and 4 g of surface-active paraffin sulfonate as a wetting agent per liter. The fabric is then desized to 100 "Vo weight gain process simultaneously
Bleaching starch-sized fabrics with
enzymatic desizing agents and
Chlorites

Anmelder:Applicant:

Farbenfabriken Bayer Aktiengesellschaft,Paint factories Bayer Aktiengesellschaft,

5090 Leverkusen5090 Leverkusen

Als Erfinder benannt:Named as inventor:

Karl-Heinz Lange, Union, N. Y. (V. St. A.);Karl-Heinz Lange, Union, N.Y. (V. St. A.);

Dr. Walter Wunder, 4460 NordhornDr. Walter Wunder, 4460 Nordhorn

abgequetscht, schlagartig durch Dämpfen auf 100° C erhitzt und 1 Stunde bei 100° C in einer Dampfatmosphäre gehalten. Abschließend wird das Gewebe mit einer heißen wäßrigen Lösung gewaschen, die im Liter 2 g des Umsetzungsproduktes aus 1 Mol Nonylphenol und 8 Mol Äthylenoxid enthält, und dann kalt gespült. Das so behandelte Gewebe ist hervorragend gebleicht, die ursprünglich auf dem Gewebe befindlichen Baumwollschalen sind entfernt, und bei Zusatz von Jodlösung ist nur noch eine sehr schwache Stärkereaktion erkennbar.squeezed off, suddenly heated by steaming to 100 ° C and 1 hour at 100 ° C in a steam atmosphere held. Finally, the fabric is washed with a hot aqueous solution that is im Liter contains 2 g of the reaction product of 1 mole of nonylphenol and 8 moles of ethylene oxide, and then rinsed cold. The fabric treated in this way is superbly bleached, which was originally on the fabric The cotton peel is removed, and with the addition of iodine solution there is only a very weak one Strength reaction recognizable.

Claims (1)

Patentanspruch:Claim: Verfahren zum gleichzeitigen Entschlichten und Bleichen von stärkegeschlichteten Geweben mit enzymatischen Entschlichtungsmitteln und Chloriten, dadurch gekennzeichnet, daß man die stärkegeschlichteten Gewebe mit einer schwach alkalischen wäßrigen Chloritlösung, welche Bakterienamylase und einen bei der Chloritbleiche üblichen Aktivator enthält, tränkt, dann abquetscht und schlagartig auf Temperaturen zwischen 90 und 100° C erhitzt.Process for the simultaneous desizing and bleaching of starch sized fabrics with enzymatic desizing agents and chlorites, characterized in that the starch-sized fabric with a weakly alkaline aqueous chlorite solution, which bacterial amylase and one with the chlorite bleach contains usual activator, soaks, then squeezes and abruptly to temperatures heated between 90 and 100 ° C. In Betracht gezogene Druckschriften:
Deutsche Auslegeschrift Nr. 1074 545.
Considered publications:
German publication No. 1074 545.
Bei der Bekanntmachung der Anmeldung ist eine Mustertafel mit Erläuterung ausgelegt worden.When the application was announced, a sample table with an explanation was displayed.
DEP1267A 1957-07-20 1964-08-17 Process for the simultaneous desizing and bleaching of starch-sized fabrics with enzymatic desizing agents and chlorites Pending DE1267656B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP1267A DE1267656B (en) 1957-07-20 1964-08-17 Process for the simultaneous desizing and bleaching of starch-sized fabrics with enzymatic desizing agents and chlorites

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE833914X 1957-07-20
DEP1267A DE1267656B (en) 1957-07-20 1964-08-17 Process for the simultaneous desizing and bleaching of starch-sized fabrics with enzymatic desizing agents and chlorites
DEF0043767 1964-08-17

Publications (1)

Publication Number Publication Date
DE1267656B true DE1267656B (en) 1968-05-09

Family

ID=27180496

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP1267A Pending DE1267656B (en) 1957-07-20 1964-08-17 Process for the simultaneous desizing and bleaching of starch-sized fabrics with enzymatic desizing agents and chlorites

Country Status (1)

Country Link
DE (1) DE1267656B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457760A (en) * 1980-12-31 1984-07-03 Produits Chimiques Ugine Kuhlmann Process for desizing and bleaching cloth with a hydrogen peroxide-based bath in a single operation
US4643736A (en) * 1981-01-23 1987-02-17 Produits Chimiques Ugine Kuhlmann Desizing and bleaching woven fabrics in a single operation in a bath based on sodium chlorite

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074545B (en) * 1957-07-20 1960-02-04 Kalk &. Co. Aktiengesellschaft, Wiesbaden-Biebrich Process for desizing and bleaching. starch sized fabrics

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074545B (en) * 1957-07-20 1960-02-04 Kalk &. Co. Aktiengesellschaft, Wiesbaden-Biebrich Process for desizing and bleaching. starch sized fabrics

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457760A (en) * 1980-12-31 1984-07-03 Produits Chimiques Ugine Kuhlmann Process for desizing and bleaching cloth with a hydrogen peroxide-based bath in a single operation
US4643736A (en) * 1981-01-23 1987-02-17 Produits Chimiques Ugine Kuhlmann Desizing and bleaching woven fabrics in a single operation in a bath based on sodium chlorite

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