DE894142C - Degreaser for animal skins and bare skin - Google Patents

Degreaser for animal skins and bare skin

Info

Publication number
DE894142C
DE894142C DEB6137D DEB0006137D DE894142C DE 894142 C DE894142 C DE 894142C DE B6137 D DEB6137 D DE B6137D DE B0006137 D DEB0006137 D DE B0006137D DE 894142 C DE894142 C DE 894142C
Authority
DE
Germany
Prior art keywords
degreaser
bare skin
animal skins
pelts
water
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
DEB6137D
Other languages
German (de)
Inventor
Hermann Dr Loewe
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB6137D priority Critical patent/DE894142C/en
Application granted granted Critical
Publication of DE894142C publication Critical patent/DE894142C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C1/00—Chemical treatment prior to tanning
    • C14C1/08—Deliming; Bating; Pickling; Degreasing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

Entfettungsmittel für tierische Häute und Blößen Tierische Häute, vor allem solche mit hohem Fettgehalt, müssen für gewisse Verwendungszwecke, beispielsweise für das Gerben, mehr oder weniger stark entfettet werden. Zu diesem Zweck pflegt man beispielsweise mit Natriumchlori-d und Säure vorbehandelte (gepickelte) Schaf sblößen möglichst weitgehend zu entwässern und mit etwa .einem Drittel ihres Gewichts an einem Kohlenwasserstoffgemisch, vorzugsweise mit Erdöl, zu behandeln. Das Erdöl wird dann aus den Blößen durch Salzwasser verdrängt.Degreasing agent for animal hides and pelts animal hides, especially those with a high fat content, must for certain uses, for example for tanning, to be more or less strongly degreased. For this purpose it wont For example, sheep pretreated with sodium chloride and acid are used s bare skin to be drained as much as possible and with about one third of its weight to treat on a hydrocarbon mixture, preferably with petroleum. The oil is then displaced from the nakedness by salt water.

Es wurde nun gefunden., daß fetthaltige gepickelte Blößen auf vorteilhaftere Weise entfettet werden können, wenn man sie mit wasserlöslichen öberflächenwirksa.men organischen. Stoffen behandelt, die nichtionogene bydrophile Gruppen enthalten, nämlich Polyglykol- oder Polyglycerinäthern oder -estern. In Betracht kommen z. B. Anlagerungsverbindungen von. Alkylenoxyden an Alkohole, Fettsäuren, Oxyfettsäuren, Alleylphenole und Alkylnaphthole. Die Verwendung dieser Stoffe zum Entfetten hat den Vorteil, daß die Blößen zuvor nicht entwässert zu werden brauchen. Auch wird eine ausreichende Wirkung schon mit geringen Mengen erreicht. Schließlich verteilt sich auf diese Weise die in der Blöße zurückbleibende kleine Fettmenge sehr gleichmäßig, was sich später beim Zurichten, Färben und Fertigstellen des Leders vorteilhaft auswirkt. Beispiel Geäscherte und. gebeizte Schafsblößen werden mit 2% kornzentrierter Schwefelsäure, io °/o Kochsalz und roo°/o Wasser gepickelt und dann .bei 370 mit 30% Wasser, 3'/o Kochsalz und 4% des durch Einwirkung von 4o Mol Äthylenoxyd auf Rizinusöl erhaltenen Stoffs gewalkt. Nach s/4 Stunden ist der größte Teil des Blößenfettes in der Flüssigkeit und .der Rest gleichmäßig in der Blöße verteilt. Das aus den so Blößen. hergestellte Leder verhält sich färberisch völlig einwandfrei.It has now been found that fatty pimpled pelts are more advantageous Can be degreased in a way if they are treated with water-soluble surface agents organic. Treats substances that contain non-ionic bydrophilic groups, namely, polyglycol or polyglycerol ethers or esters. Consider z. B. addition compounds of. Alkylene oxides to alcohols, fatty acids, oxy fatty acids, Alleyl phenols and alkyl naphthols. The use of these substances for degreasing has the advantage that the pelts do not need to be dehydrated beforehand. Also will a sufficient effect is achieved even with small amounts. Finally distributed In this way, the small amount of fat remaining in the nakedness is very evenly distributed, which is later beneficial when dressing, dyeing and finishing the leather affects. Example cremated and. Pickled sheep pelts become more grain-centered with 2% Sulfuric acid, 10% table salt and roo ° / o water pecked and then .at 370 with 30% water, 3 '/ o table salt and 4% of the action of 40 mol Ethylene oxide milled onto the fabric obtained from castor oil. After s / 4 hours is the largest Part of the pelt fat in the liquid and the rest evenly in the pelt distributed. That from the so nakedness. The leather produced behaves completely in terms of color perfect.

Ein gleich gutes Ergebnis erhält man, wenn, man die Anlagerungsverbindungen von 8 bis ro Mal Äthylenoxyd an ein alkyliertes Phenol oder Naphthol anwendet.An equally good result is obtained if the addition compounds are used applies from 8 to ro times ethylene oxide to an alkylated phenol or naphthol.

Claims (1)

PATRNTANSPRUCFT: Die Verwendung von Polyglykol- öder Polyglycerinäthern oder -estern zurr Entfetten von Häuten und Blößen. Angezogene Druckschriften: Deutsche Patentschrift Nr. 605 9h73.PATRNTANPRUCFT: The use of polyglycol or polyglycerine ethers or esters for degreasing hides and pelts. Referenced publications: German patent specification No. 605 9h73.
DEB6137D 1942-11-26 1942-11-26 Degreaser for animal skins and bare skin Expired DE894142C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB6137D DE894142C (en) 1942-11-26 1942-11-26 Degreaser for animal skins and bare skin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB6137D DE894142C (en) 1942-11-26 1942-11-26 Degreaser for animal skins and bare skin

Publications (1)

Publication Number Publication Date
DE894142C true DE894142C (en) 1953-10-22

Family

ID=6954402

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB6137D Expired DE894142C (en) 1942-11-26 1942-11-26 Degreaser for animal skins and bare skin

Country Status (1)

Country Link
DE (1) DE894142C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10005669A1 (en) * 2000-02-09 2001-08-23 Boehme Chem Fab Kg Degreasing of pickled hides, especially sheepskins, using surfactants, especially nonionic adducts of ethylene oxide with 10-16C fatty alcohols
DE3922748B4 (en) * 1989-07-11 2006-01-05 Röhm GmbH & Co. KG Enzymatic soft process

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE605973C (en) * 1930-11-30 1934-11-22 I G Farbenindustrie Akt Ges Process for the production of ethers from hydroxyl-containing organic compounds and ethylene oxide

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE605973C (en) * 1930-11-30 1934-11-22 I G Farbenindustrie Akt Ges Process for the production of ethers from hydroxyl-containing organic compounds and ethylene oxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3922748B4 (en) * 1989-07-11 2006-01-05 Röhm GmbH & Co. KG Enzymatic soft process
DE10005669A1 (en) * 2000-02-09 2001-08-23 Boehme Chem Fab Kg Degreasing of pickled hides, especially sheepskins, using surfactants, especially nonionic adducts of ethylene oxide with 10-16C fatty alcohols

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