DE645389C - Process for the production of iron leather - Google Patents

Process for the production of iron leather

Info

Publication number
DE645389C
DE645389C DEI53875D DEI0053875D DE645389C DE 645389 C DE645389 C DE 645389C DE I53875 D DEI53875 D DE I53875D DE I0053875 D DEI0053875 D DE I0053875D DE 645389 C DE645389 C DE 645389C
Authority
DE
Germany
Prior art keywords
parts
weight
production
iron
leather
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
DEI53875D
Other languages
German (de)
Inventor
Dr Hans Dohse
Dr Werner Huehn
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 to DEI52860D priority Critical patent/DE639787C/en
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI53875D priority patent/DE645389C/en
Priority to US90918A priority patent/US2122133A/en
Priority to FR810386D priority patent/FR810386A/en
Priority to GB20542/36A priority patent/GB470530A/en
Application granted granted Critical
Publication of DE645389C publication Critical patent/DE645389C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00Tanning; Compositions for tanning
    • C14C3/02Chemical tanning
    • C14C3/04Mineral tanning

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

Verfahren zur Herstellung von Eisenledern Im Hauptpatent 639 787 ist ein Verfahren zur Herstellung von Eisenledern beschrieben, bei denn Blößen mit solchen komplexen Eisenverbindungen gegerbt werden, die im Komplex organische Substitutionsproduktedes Ammoniaks, wie Harnstoff, Acetamid u. a. m., für sich allein oder in Gemeinschaft mit schwachen Säuren, vornehmlich niederen aliphatischen, Säuren, enthalten und deren Außenvalenzen ganz oder teilweise mit solchen Säuren abigesättigt sein können, die Affinität zur Haut haben.Process for the production of iron leathers The main patent 639 787 describes a process for the production of iron leathers, in which pelts are tanned with complex iron compounds that are organic substitution products of ammonia, such as urea, acetamide, etc., alone or in combination with weak acids , mainly lower aliphatic acids, and the outer valences of which may be wholly or partially unsaturated with acids that have an affinity for the skin.

Es wurde nun gefunden, daß man auch zu Eisenledern von guten Eigenschaften gelangt, wenn man nicht von den genannten, fertigen Eisenkomplexsalzen ausgeht, sondern diese erst in der Gerblösung entstehen läßt, indem man die zur Herstellung der im Hauptpatent angegebenen Eisenkomplexsalze notwendigen Ausgangsstüff,e einzeln in beliebiger Reihenfolge zur Lösung gibt.It has now been found that iron leathers with good properties can also be obtained if one does not start from the mentioned, finished iron complex salts, but this can only arise in the tanning solution by adding the for production of the iron complex salts specified in the main patent necessary starting materials, e individually in any order for the solution.

Die Gerbung mit den so bereiteten Lösungen geschieht in der gleichen Weise, wie im Hauptpatent angegeben. Man erhält ein schwellbieständiges, hellfarbiges und lagerbeständiges Leder von gutem Griff und hohem Rendement. Beispiel i ioo Gewichstei,le in der üblichen Weise gepickelte Rinds- oder Kalbsblöße werden mit ioo Gewichtsteilen Wasser und 2 Gewichtsteilen Kochsalz einige Minuten lang gewalkt, dann mit q.o Gewichtsteilen Wasser, 3,5 Gewichtsteilen Eisenchlorid, 5,6 Gewichtsteilen Natriumacetat, 2,5 Gewichtsteilen Harnstoff, 0,7 Gewichtsteilen Soda und 6 Gewichtsteilen des sauren Natriumsalzes des Kondensatio,nspro,duktes aus Naphthalinsulfon.s.äure und Formaj,dehyd in beliebiger Reihenfolge versetzt und bis zur völligen Durchgerbung im Faß gewalkt. Das Leder wird dann kalt und warm gespült und in der üblichen Weise gefettet und zugerichtet.The tanning with the solutions prepared in this way takes place in the same way Way as stated in the main patent. A swell-resistant, light-colored one is obtained and shelf-stable leather with a good grip and high yield. Example i ioo Gewichstei, le Beef or veal pelts picked in the usual way are weighed 100 parts by weight Water and 2 parts by weight of table salt drummed for a few minutes, then with q.o parts by weight Water, 3.5 parts by weight ferric chloride, 5.6 parts by weight sodium acetate, 2.5 parts by weight Urea, 0.7 parts by weight of soda and 6 parts by weight of the acidic sodium salt of the condensation products from naphthalenesulfonic acid and formaldehyde in any Staggered order and drummed until completely tanned in the barrel. The leather is then rinsed cold and warm and greased and trimmed in the usual way.

Beispiel 2 i oo Gewächtsteile in der üblichen Weise gepickehe Rindsblöße werden mit ioo Gewichtsteilen Wasser und 2 Gewichtsteilen Kochsalz einige Minuten lang gewalkt, dann mit q.o Gewichtsteilien Wasser, 6 Gewichtsteilten Kochsalz, q.,6 Gewichtsteilen Eisenchlorid und 5 G:ewichtsteilien Acetamidetwa 5 bis 8 Stunden lang im Faß gewalkt, bis völlige Durchgerbung erreicht ist. Hierauf wer- den 6 Gewichtsteile Neutralsalz des Konden- sationsprojukt-es- -aus- -Na M'ttltaliiisulfonsäure und Formttl,dt-b@#d- zugesetzt. Es wird «eitere 2 Stunden lang gewalkt und das Leder dann. in der üblichen Weise zugerichtet. Beispiel t oo Gen-iclitstei,'.e in der üblichen Weise gepickelte Kalbsbliil@e «-erden mit ioo C=e- « iclitstei?.eti Wasser und 2 Gewichtsteilen Kochsalz einige Minuten lang gewalkt, dann tnk .1o Gewichtstei.'en Wasser, 6 Gewichtstei- len Kochsalz, .1,6 Gewichtsteilen Eisenchlorid und 3 Gewichtsteilen Acetamid etwa 5 bis 8 Stunden lanb im Fali gewalkt, bis völlige Durchberbung erreicht ist. Hierauf wird all- mählich i,n kleinen Anteilen eine Lösung von 6 Gewichtsteilen Neutralsalz des Kondensap t . EXAMPLE 2 100 parts by weight of beef pelts picked in the usual way are drummed with 100 parts by weight of water and 2 parts by weight of common salt for a few minutes, then with qo parts by weight of water, 6 parts by weight of common salt, q.6 parts by weight of ferric chloride and 5 parts by weight of acetamidet about 5 to 8 parts by weight Milled in the barrel for hours until complete tanning is achieved. Thereupon the 6 parts by weight of neutral salt of the condensate sationsprojukt-es- -aus- - Na M'ttltaliiisulfonsäure and Formttl, dt-b @ # d- added. It becomes fester Milled for 2 hours and then the leather. dressed in the usual way. example t oo Gen- iclitstei, '. e in the usual way Pickled veal flowers @ e «-erden with 100 C = e- «Iclitstei? .Eti water and 2 parts by weight Milled table salt for a few minutes, then tnk .1o parts by weight of water, 6 parts by weight len table salt, 1.6 parts by weight of ferric chloride and 3 parts by weight acetamide about 5 to Walked 8 hours in the Fali until complete Through training is achieved. All- Gradually i, n small proportions a solution of 6 parts by weight of the neutral salt of the condensate .

onegroduktes aus i\aphthalinsulfonsäure mit ^"` ldehyd und 2 Gewichtsteilen Alanin- ü zugesetzt und weitere 2 Stunden lang -`Y.,.4 @:,a)kf: D s a Leder wird in der .üblichen gefettet und zugerichtet. one product from i \ aphthalenesulfonic acid with ^ "` ldehyde and 2 parts by weight of alanine ü added and for another 2 hours -`Y.,. 4 @ :, a) kf: D s a leather is used in the usual greased and dressed.

Claims (1)

PATENTANSPRUCH: Abänderung des Verfahrens nach Patent 639 787 zur Herstellung von Eisenleder, dadurch gekennzeichnet, daß man die im Hauptpatent angewandten fertigen Substitutionsprodukte des Ammoniaks entha'.@tenen Eisenkomplexsalze erst in .der Gerbflotte entstehen läßt.PATENT CLAIM: Modification of the process according to patent 639 787 for the production of iron leather, characterized in that the finished ammonia substitution products used in the main patent are only allowed to arise in the tanning liquor.
DEI53875D 1935-07-24 1935-12-14 Process for the production of iron leather Expired DE645389C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DEI52860D DE639787C (en) 1935-07-24 1935-07-25 Process for the production of iron leather
DEI53875D DE645389C (en) 1935-07-24 1935-12-14 Process for the production of iron leather
US90918A US2122133A (en) 1935-07-24 1936-07-16 Iron-tanned leather
FR810386D FR810386A (en) 1935-07-24 1936-07-23 Process for preparing iron-tanned leather
GB20542/36A GB470530A (en) 1935-07-24 1936-07-24 Improvements in and relating to the preparation of iron-tanned leather

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE2122133X 1935-07-24
DE810386X 1935-07-24
DEI52860D DE639787C (en) 1935-07-24 1935-07-25 Process for the production of iron leather
DEI53875D DE645389C (en) 1935-07-24 1935-12-14 Process for the production of iron leather
DE470530X 1935-12-24

Publications (1)

Publication Number Publication Date
DE645389C true DE645389C (en) 1937-05-26

Family

ID=60293612

Family Applications (2)

Application Number Title Priority Date Filing Date
DEI52860D Expired DE639787C (en) 1935-07-24 1935-07-25 Process for the production of iron leather
DEI53875D Expired DE645389C (en) 1935-07-24 1935-12-14 Process for the production of iron leather

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEI52860D Expired DE639787C (en) 1935-07-24 1935-07-25 Process for the production of iron leather

Country Status (4)

Country Link
US (1) US2122133A (en)
DE (2) DE639787C (en)
FR (1) FR810386A (en)
GB (1) GB470530A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746635C (en) * 1939-07-12 1944-12-22 Process for the production of aqueous solutions of complex aluminum compounds
US2599142A (en) * 1949-08-12 1952-06-03 American Cyanamid Co Tanning and bleaching leather with a sulfoaromaticmelamine-formaldehyde resin
DE10250112A1 (en) * 2002-10-28 2004-05-06 Bayer Ag Condensation product for giving in Fe-tanned leather

Also Published As

Publication number Publication date
GB470530A (en) 1937-08-17
US2122133A (en) 1938-06-28
FR810386A (en) 1937-03-20
DE639787C (en) 1936-12-12

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