DE1176788B1 - Tanning of fur skins - Google Patents

Tanning of fur skins

Info

Publication number
DE1176788B1
DE1176788B1 DEC28846A DEC0028846A DE1176788B1 DE 1176788 B1 DE1176788 B1 DE 1176788B1 DE C28846 A DEC28846 A DE C28846A DE C0028846 A DEC0028846 A DE C0028846A DE 1176788 B1 DE1176788 B1 DE 1176788B1
Authority
DE
Germany
Prior art keywords
tanning
fur skins
oxymethylated
skins
aldehydes
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
DEC28846A
Other languages
German (de)
Inventor
Dr Arthur Mickeley
Dr Guenther Gruber
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.)
Cassella Farbwerke Mainkur AG
Original Assignee
Cassella Farbwerke Mainkur 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
Priority claimed from DEC21587A external-priority patent/DE1154593B1/en
Application filed by Cassella Farbwerke Mainkur AG filed Critical Cassella Farbwerke Mainkur AG
Priority to DEC28846A priority Critical patent/DE1176788B1/en
Priority to FR959462A priority patent/FR85063E/en
Publication of DE1176788B1 publication Critical patent/DE1176788B1/en
Pending 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
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C14C3/08—Chemical tanning by organic agents
    • C14C3/16—Chemical tanning by organic agents using aliphatic aldehydes

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

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

PATENTSCHRIFTPATENT LETTERING

Internat. Kl.: C14 cBoarding school Class: C14 c

Nummer:Number:

Aktenzeichen:File number:

Anmeldetag:Registration date:

Deutsche Kl.: 28 a-12 German class: 28 a -12

C 28846IVc/28 a
7. Januar 1963
27. August 1964
29. April 1965C 28846IVc / 28 a
7th January 1963
August 27, 1964
April 29, 1965

Auslegetag:Display day:

Ausgabetag:Issue date:

Patentschrift stimmt mit der Auslegeschrift übereinThe patent specification corresponds to the patent specification

Gegenstand des Hauptpatents 1 154 593 ist die Verwendung von «-oxymethylierten Aldehyden zum Gerben von Häuten und Fellen.The subject of the main patent 1 154 593 is the use of «-oxymethylated aldehydes for Tanning of hides and skins.

Es wurde gefunden, daß sich a-oxymethylierte Aldehyde, insbesondere Trimethylolacetaldehyd, auch zum Gerben bzw. Zurichten von Pelzfellen eignen. Der Vorteil bei der Zurichtung von Pelzfellen unter Verwendung der genannten Aldehyde besteht vor allem darin, daß sich wesentlich höhere Schrumpfungstemperaturen erzielen lassen, als dies bei der bekannten Anwendung von nicht oxymethylierten Monoaldehyden, wie Formaldehyd, möglich ist. Da die a-oxymethylierten Aldehyde durch ihren Gehalt an Oxymethylengruppen eine erhöhte Reaktionsfähigkeit sowohl mit der Hautsubstanz als auch den mitverwendeten Gerbstoffen gegenüber aufweisen, kann der Anteil der bei der Pelzzurichtung meist mitverwendeten mineralischen (Chrom-, Aluminium-) Gerbstoffe vermindert werden, so daß sich die mit «-oxymethylierten Aldehyden zugerichteten Felle bei guter Gerbung und Weichheit durch ein besonders leichtes Gewicht auszeichnen. Die unter Mitverwendung von «-oxymethylierten Aldehyden zugerichteten Felle sind gut waschbar. Das Haar hat einen hervorragenden Stand und Glanz und läßt sich gut färben.It was found that α-oxymethylated Aldehydes, especially trimethylolacetaldehyde, are also suitable for tanning or dressing fur skins. There is an advantage in dressing fur skins using the aldehydes mentioned mainly in the fact that much higher shrinkage temperatures can be achieved than with the known use of non-oxymethylated monoaldehydes, such as formaldehyde, is possible. There the a-oxymethylated aldehydes have an increased reactivity due to their content of oxymethylene groups with both the skin substance and the tanning agents used, can the share of the mineral (chrome, aluminum) mostly used in fur finishing Tannins are reduced so that the pelts trimmed with -oxymethylated aldehydes are added good tanning and softness are characterized by a particularly light weight. The with use Pelts made from oxymethylated aldehydes are washable. The hair has an excellent Stand and shine and can be colored well.

Beispielexample

Gut geweichte Pelzfelle, wie z. B. Zickel, Bisam, Nerze od. dgl., werden nach dem Pickeln und eventuellem Dünnschneiden wie folgt gegerbt: 800% Flotte 28 bis 300C, 2 g/l Flotte Trimethylolacetaldehyd in 2 Anteilen mit 20 Minuten Abstand, 2 Stunden.Well-soaked fur skins, such as B. kids, muskrat, mink or the like, are tanned as follows after picking and possibly thin cutting: 800% liquor 28 to 30 ° C., 2 g / l liquor trimethylol acetaldehyde in 2 portions with an interval of 20 minutes, 2 hours.

Gerben von PelzfellenTanning of fur skins

Zusatz zum Patent: 1154 593Addendum to the patent: 1154 593

Das Hauptpatent hat angefangen am 3. Juni 1960The main patent started on June 3, 1960

Patentiert für:Patented for:

Cassella Farbwerke Mainkur Aktiengesellschaft,Cassella Farbwerke Mainkur Aktiengesellschaft,

Frankfurt/M.- FechenheimFrankfurt / M.- Fechenheim

Als Erfinder benannt:Named as inventor:

Dr. Arthur Miekeley, Bach bei Regensburg,Dr. Arthur Miekeley, Bach near Regensburg,

Dr. Günter Gruber, Frankfurt/M.-FechenheimDr. Günter Gruber, Frankfurt / M.-Fechenheim

Zusatz: 2 g/l Flotte Kalialaun, 1 g/l Flotte Chromalaun oder Chromacetat, 8 bis 10 Stunden Laufzeit. Anschließend wird die Flotte mit Natriumacetat im Laufe von 2 Stunden auf pa 4,0 bis 4,2 eingestellt und im gleichen Bad oder nach dem Abtropfen bzw. Zentrifugieren der Felle durch Streichfettung in üblicher Weise gefettet.Addition: 2 g / l liquor potassium alum, 1 g / l liquor chrome alum or chromium acetate, 8 to 10 hours running time. The liquor is then adjusted to 4.0 to 4.2 pa over the course of 2 hours with sodium acetate and in the same bath or after draining or centrifuging the skins by spreading fat in usually greased.

Claims (1)

Patentanspruch:Claim: Verwendung von «-oxymethylierten Aldehyden allein oder in Kombination mit anderen bekannten mineralischen, synthetischen oder vegetabilischen Gerbstoffen gemäß Patent 1 154 593 zum Gerben von Pelzfellen.Use of -oxymethylated aldehydes alone or in combination with other known ones mineral, synthetic or vegetable tanning agents according to patent 1 154 593 for tanning of fur skins.
DEC28846A 1960-06-02 1963-01-07 Tanning of fur skins Pending DE1176788B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEC28846A DE1176788B1 (en) 1960-06-02 1963-01-07 Tanning of fur skins
FR959462A FR85063E (en) 1960-06-02 1964-01-06 Leather and skins tanning process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEC21587A DE1154593B1 (en) 1960-06-02 1960-06-02 Tanning of hides and skins
DEC28846A DE1176788B1 (en) 1960-06-02 1963-01-07 Tanning of fur skins

Publications (1)

Publication Number Publication Date
DE1176788B1 true DE1176788B1 (en) 1964-08-27

Family

ID=7018770

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC28846A Pending DE1176788B1 (en) 1960-06-02 1963-01-07 Tanning of fur skins

Country Status (2)

Country Link
DE (1) DE1176788B1 (en)
FR (1) FR85063E (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996015276A1 (en) * 1994-11-15 1996-05-23 Basf Aktiengesellschaft Process for preparing leather and furs using polymer tanning agents
EP0717114A3 (en) * 1994-12-15 1996-08-21 Ciba Geigy Ag Aqueous composition for pretanning hides or retanning of leather

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996015276A1 (en) * 1994-11-15 1996-05-23 Basf Aktiengesellschaft Process for preparing leather and furs using polymer tanning agents
EP0717114A3 (en) * 1994-12-15 1996-08-21 Ciba Geigy Ag Aqueous composition for pretanning hides or retanning of leather

Also Published As

Publication number Publication date
FR85063E (en) 1965-06-04

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