DE417600C - Preparation of leather for the application of varnishes made from cellulose esters - Google Patents

Preparation of leather for the application of varnishes made from cellulose esters

Info

Publication number
DE417600C
DE417600C DEF56393D DEF0056393D DE417600C DE 417600 C DE417600 C DE 417600C DE F56393 D DEF56393 D DE F56393D DE F0056393 D DEF0056393 D DE F0056393D DE 417600 C DE417600 C DE 417600C
Authority
DE
Germany
Prior art keywords
leather
cellulose esters
application
preparation
cellulose
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
DEF56393D
Other languages
German (de)
Inventor
Dr Leo Rosenthal
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
Farbenfabriken Vorm Friedr Bayer and Co
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 Farbenfabriken Vorm Friedr Bayer and Co filed Critical Farbenfabriken Vorm Friedr Bayer and Co
Priority to DEF56393D priority Critical patent/DE417600C/en
Application granted granted Critical
Publication of DE417600C publication Critical patent/DE417600C/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
    • C14C11/00—Surface finishing of leather
    • C14C11/003—Surface finishing of leather using macromolecular compounds

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

Vorbereitung von Leder für den Auftrag von Lacken aus Celluloseestern. Bekanntlich haften Celluloseesterlacke nur sehr unbefriedigend auf fetthaltigem Leder. Beim Falten eines solchen Lackleders lösen sich die Celluloseesterüberzüge sehr leicht vom Leder ab und lassen sich - besonders hei @@erwendung von Acetvlcellulose - als Häutchen fast vollständig abziehen.Preparation of leather for the application of varnishes made from cellulose esters. It is well known that cellulose ester coatings adhere only very unsatisfactorily to fatty materials Leather. When folding such a patent leather, the cellulose ester coatings come off very easily off the leather and can be - especially hot @@ use of acetyl cellulose - peel off almost completely as a skin.

Es wurde nun gefunden, daß man auf Leder und insbesondere auch auf fetthaltigem Leder sehr fest haftende Lackierungen aus Celluloseestern erhalten kann, wenn man das Leder vor dem Auftrag der Celluloseesterlacke mit Weichmachungs- oder Gelatinierungsmitteln für Celluloseester imprägniert. Zweckmäßiger-«-eise wendet man diese Mittel in Form geeigneter Lösungen an, damit sie möglichst tief in das Leder eindringen können. Derartige Lösungen können gegebenenfalls Zusätze anderer Substanzen, auch kleine Mengen Celluloseester enthalten, die allerdings nur so groß sein dürfen, daß sie das Eindringen des Weichmachungsmittels in das Leder nicht verhindern. Von Weichmachungs- und Gelatinierungsmitteln können beispielsweise der polymere -Tethylenacetessigester, das Benzvlacetyl-o-toluidin, Trikresylphosphat, Phtalsä uredimethylester u. a. zur Anwendung kommen. Auch kann man zu diesen Imprägnierungsmitteln Zusätze von Farbstoffen machen, um gleichzeitig einen gut deckenden Untergrund zu erhalten. Beispiel: Auf die zu lackierende Seite eines schwarz gefärbten Chromleders wird eine :X1 ischung, bestehend aus .4o Gewichtsteilen polymerem Methylenacetessigester, 6o Gewichtsteilen Alkohol und i o Gewichtsteilen Ruß, aufgetragen und diese Behandlung gegebenenfalls wiederholt.It has now been found that leather and, in particular, can also be used Very firmly adhering lacquers made from cellulose esters are obtained from fatty leather if the leather is treated with a softening agent before the cellulose ester varnish is applied. or gelling agents impregnated for cellulose esters. More expedient - «- turns around one offers these means in the form of suitable solutions, so that they are as deep as possible in the Leather can penetrate. Such solutions can optionally contain additions of others Substances, even small amounts of cellulose ester, but only so large may be that they do not allow the softening agent to penetrate the leather impede. Of softening and gelatinizing agents, for example polymer -ethylene acetoacetic ester, benzvlacetyl-o-toluidine, tricresyl phosphate, Phthalic acid dimethyl ester and others. come into use. You can also use these impregnating agents Adding dyes to create a well-covering substrate at the same time obtain. Example: On the side to be painted on a black-colored chrome leather becomes a: X1 mixture, consisting of .4o parts by weight of polymeric methylene acetoacetic ester, 60 parts by weight of alcohol and 10 parts by weight of carbon black, applied and this treatment repeated if necessary.

Auf diese Grundierung trägt man je nach dein gewünschten Effekt farblose oder angefärbte Celluloseesterlacke auf. beispielsweise einen Lack, bestehend aus i o Gewichtsteilen Acetylcellulose, 2o Gewichtsteilen polyinerem Methylenacetessigester, 49 Gewichtsteilen Äthylenchlorhydrin, 21 Gewichtsteilen Wasser. Man kann die Imprägnierung auch in :der Weise vornehmen, daß man das Chromleder in die Lösung von Weichmachungs- oder Gelatinierungsmitteln taucht und nach dem Verdunsten des Verdünnungsmittels auf das imprägnierte Leder einen geeigneten Celluloseesterlack aufträgt.Depending on the desired effect, colorless can be applied to this primer or colored cellulose ester lacquers. for example a varnish consisting of i o parts by weight of acetyl cellulose, 2o parts by weight of polymeric methylene acetoacetic ester, 49 parts by weight of ethylene chlorohydrin, 21 parts by weight of water. One can do the impregnation also in: make the chrome leather in the solution of softening or gelatinizing agents immersed and after evaporation of the diluent applies a suitable cellulose ester lacquer to the impregnated leather.

Claims (1)

Pr1TRNT-ANSPRUCH. Verfahren zur Vorbereitung von Leder für den Auftrag von Lacken aus Celluloseestern, dadurch gekennzeichnet, daß .man gegerbte und gegebenenfalls gefärbte Leder mit Weichmachungs- oder Gelatinierungsmitteln für Celluloseester imprägniert.Pr1TRNT CLAIM. Process of preparing leather for application of lacquers made from cellulose esters, characterized in that .man tanned and optionally dyed leathers with softening or gelatinizing agents for cellulose esters impregnated.
DEF56393D 1924-06-27 1924-06-27 Preparation of leather for the application of varnishes made from cellulose esters Expired DE417600C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF56393D DE417600C (en) 1924-06-27 1924-06-27 Preparation of leather for the application of varnishes made from cellulose esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF56393D DE417600C (en) 1924-06-27 1924-06-27 Preparation of leather for the application of varnishes made from cellulose esters

Publications (1)

Publication Number Publication Date
DE417600C true DE417600C (en) 1925-08-14

Family

ID=7107959

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF56393D Expired DE417600C (en) 1924-06-27 1924-06-27 Preparation of leather for the application of varnishes made from cellulose esters

Country Status (1)

Country Link
DE (1) DE417600C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080115637A1 (en) * 2006-11-16 2008-05-22 Gerald Mayfield Child safety restraint installation tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080115637A1 (en) * 2006-11-16 2008-05-22 Gerald Mayfield Child safety restraint installation tool

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