EP0184741B1 - Procédé de nourriture des cuirs et peaux - Google Patents

Procédé de nourriture des cuirs et peaux Download PDF

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Publication number
EP0184741B1
EP0184741B1 EP85115218A EP85115218A EP0184741B1 EP 0184741 B1 EP0184741 B1 EP 0184741B1 EP 85115218 A EP85115218 A EP 85115218A EP 85115218 A EP85115218 A EP 85115218A EP 0184741 B1 EP0184741 B1 EP 0184741B1
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EP
European Patent Office
Prior art keywords
fatty acid
leather
acid
esters
fat liquoring
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
EP85115218A
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German (de)
English (en)
Other versions
EP0184741A2 (fr
EP0184741A3 (en
Inventor
Hans-Herbert Dr. Friese
Uwe Dr. Ploog
Günter Uphues
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0184741A2 publication Critical patent/EP0184741A2/fr
Publication of EP0184741A3 publication Critical patent/EP0184741A3/de
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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
    • C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
    • C14C9/02—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes using fatty or oily materials, e.g. fat liquoring

Definitions

  • the invention relates to a process for greasing leather and furs, characterized in that an amphoteric surfactant is used as the greasing agent, which is prepared by condensation of C 6 -C 22 fatty acids or corresponding fatty acid esters with aminoalkylalkanolamines of the general formula and subsequent alkylation by reaction with acrylic acid or methacrylic acid or their esters.
  • an amphoteric surfactant is used as the greasing agent, which is prepared by condensation of C 6 -C 22 fatty acids or corresponding fatty acid esters with aminoalkylalkanolamines of the general formula and subsequent alkylation by reaction with acrylic acid or methacrylic acid or their esters.
  • amphoteric surfactants are described, for example, in DE-OS 3018201 (EP-A 0 040 346). They are then prepared by condensation of C ⁇ -C22 fatty acids with the aminoalkylalkanolamines of the general formula given in a molar ratio of 1: 1 to 1: 1.5 and subsequent alkylation with vinylogenic compounds, the alkylation products optionally quaternizing depending on the structure and extent of the reaction May have nitrogen atoms. Since the condensation products of fatty acid and aminoalkylalkanolamine generally contain a more or less high proportion of diamide, an alkaline pretreatment is preferably carried out before the alkylation, the diamide being converted into the monoamide. In the subsequent alkylation, this leads to improved amphoteric surfactants with, in particular, increased storage stability.
  • saturated or unsaturated C 12 -C 22 fatty acids or corresponding fatty acid esters preference is given to using saturated or unsaturated C 12 -C 22 fatty acids or corresponding fatty acid esters. These can be present as pure components or preferably as mixtures of natural or synthetic origin. Examples of this are mixtures of coconut fatty acid, tallow fatty acid, trans-fatty acid, rapeseed oil fatty acid, and corresponding methyl esters or triglycerides.
  • the amine component is preferably aminoethylethanolamine.
  • the reaction is preferably carried out in a molar ratio of fatty acid or fatty acid residue: aminoalkylalkanolamine, such as 1: 1 to 1: 1.5.
  • the alkylation is carried out using acrylic acid or methacrylic acid and their esters, such as methyl acrylate or methyl methacrylate.
  • the amphoteric surfactants are formed by subsequent saponification of the alkylation products with aqueous sodium hydroxide solution.
  • amphoteric surfactants described have high emulsion resistance to the hardness constituents of water and to alkali salts.
  • leather and fur greasing with good greasing of the leather they result in a pleasantly soft, slimy and supple handle. Colorings are very brilliant with good levelness.
  • Suede leather has a silky fiber with a nice writing effect.
  • amphoteric surfactants can be used alone or in combination with conventional leather greasing agents based on sulfated, sulfited or sulfochlorinated oils or fats as well as in combination with anionic and / or nonionic emulsifiers, such as alkylbenzenesulfonates, fatty alcohol sulfates, fatty alcohol ethosulfates, fatty acid alkanolamide ethosulfates, fatty alcohol ethylenesulfates, and fatty alcohol sulfosulfinates, sulfosulfinate adducts, sulfosuccinate adducts, and sulfosuccinate adducts be used.
  • anionic and / or nonionic emulsifiers such as alkylbenzenesulfonates, fatty alcohol sulfates, fatty alcohol ethosulfates, fatty acid alkanolamide ethosulfates, fatty alcohol
  • amphoteric surfactants can be 10-100% by weight, based on the fatty substance. Because of the amphoteric character of the claimed products, combinations with cationic fatliquoring agents or emulsifiers, such as e.g. Dimethyldistearylammonium chloride possible.
  • the amphoteric surfactants are leather and fur greasing agents which can be used without problems. They are used in the customary manner in the form of aqueous emulsions in an amount of 3-15% by weight of active substance, based on the shaved weight of the leather.
  • amphoteric surfactant 97.2 g (0.25 mol) of the aminoamide were mixed in a three-necked flask with stirring and a thermometer at 90 ° C. with 4 g of 50% sodium hydroxide solution and 25 g of water and for 1 hour at 90-95 ° C. stirred to destroy diamide. Then 316.6 g of water and 18.0 g (0.25 mol) of acrylic acid were added and the mixture was stirred at 85 ° C. for 5 hours. A finely divided dispersion with 25% active substance was obtained.
  • amphoteric surfactant 862.5 g (1.9 mol) of the aminoamide, 30.5 g of 50% sodium hydroxide solution, 2969.5 g of water and 137.5 g (1.91 mol) of acrylic acid were added in the order given below 1 specified, implemented. Here too, a finely dispersed product with 25% active substance was obtained.
  • amphoteric surfactant 847 g (2.14 mol) of the aminoamide were dispersed in 2000 g of water and reacted with 153 g (2.13 mol) of acrylic acid by stirring at 80-90 ° C. for 8 hours.
  • the product obtained was a viscous brown liquid with 33% active substance.
  • amphoteric surfactant 1267 g (3.5 mol) of the aminoamide, 252 g (3.5 mol) of acrylic acid and 4500 g of water were reacted. A viscous brown liquid with 25% active substance was obtained.
  • a silky velor fiber with a brilliant color and a beautiful writing effect is obtained.
  • the leather is very soft (softyl leather) with good fullness, uniform, brilliant aniline coloring.

Landscapes

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

Claims (5)

1. Procédé de nourrissage du cuir et des peaux caractérisé en ce que l'on utilise comme agent de nourrissage un agent tensio-actif amphiphile, qui est produit par condensation d'acides gras en C6-C22 ou des esters d'acide gras correspondants, avec des aminoalcoylalcanolamines de formule générale:
Figure imgb0007
Figure imgb0008
Figure imgb0009
et alcoylation subséquente par condensation avec l'acide acrylique ou l'acide méthacrylique ou leurs esters.
2. Procédé selon la revendication 1, caractérisé en ce que l'on utilise un agent tensio-actif amphiphile qui est produit par condensation d'acides gras saturés ou insaturés, en C12 à C22 ou des esters d'acides gras correspondants, avec une ami- noalcoylalcanolamine dans un rapport molaire en acide gras ou reste d'acide gras:aminoalcoylalca- nolamine comme 1:1 à 1:1,5 et alcoylation subséquente avec l'acide acrylique ou l'acide méthacrylique ou de leurs esters, et le cas échéant saponification subséquente.
3. Procédé selon les revendications 1 et 2, caractérisé en ce que le produit de condensation au départ d'acide gras et d'aminoalcoylalcanolamine est soumis avant l'alcoylation, à un traitement préliminaire alcalin à une température entre 70 et 100°C.
4. Procédé selon les revendications 1 à 3, caractérisé en ce que l'agent tensio-actif amphiphile est mis en oeuvre sous forme d'émulsions aqueuses en quantité de 3 à 15% en poids de substance active, rapporté au poids plissé du cuir ou des peaux, dans le jus de léchage.
5. Procédé selon les revendications 1 à 4, caractérisé en ce que l'agent tensio-actif amphiphile est utilisé en combinaison avec les agents de nourrissage du cuir habituels à base d'huile ou de graisses sulfatées, sulfitées ou sulfochlorurées, le cas échéant en connexion avec des émulsionnants anioniques et/ou non ionogènes, ou cationiques.
EP85115218A 1984-12-08 1985-11-30 Procédé de nourriture des cuirs et peaux Expired EP0184741B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843444864 DE3444864A1 (de) 1984-12-08 1984-12-08 Verfahren zur fettung von leder und pelzen
DE3444864 1984-12-08

Publications (3)

Publication Number Publication Date
EP0184741A2 EP0184741A2 (fr) 1986-06-18
EP0184741A3 EP0184741A3 (en) 1987-05-13
EP0184741B1 true EP0184741B1 (fr) 1989-07-26

Family

ID=6252278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85115218A Expired EP0184741B1 (fr) 1984-12-08 1985-11-30 Procédé de nourriture des cuirs et peaux

Country Status (5)

Country Link
US (1) US4729767A (fr)
EP (1) EP0184741B1 (fr)
BR (1) BR8506116A (fr)
DE (2) DE3444864A1 (fr)
ES (1) ES8609486A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TNSN89128A1 (fr) * 1988-12-02 1991-02-04 Rohn And Haas Company Independance Mall West Traitement du cuir avec des copolymeres amphiphites choisis
US5330537A (en) * 1990-06-07 1994-07-19 Rohm And Haas Company Leather treatment selected amphiphilic copolymer
DE4409926A1 (de) * 1994-03-23 1995-09-28 Henkel Kgaa Verwendung von Alkylendiamintetrapropionsäuren zur fettenden Ausrüstung von Leder
GB9407226D0 (en) * 1994-04-12 1994-06-08 Allieed Colloids Limited Leather softening
DE4435398A1 (de) * 1994-10-04 1996-04-11 Henkel Kgaa Verfahren zur Herstellung von Lederfettungsmitteln
US5630847A (en) * 1995-03-30 1997-05-20 The Procter & Gamble Company Perfumable dry cleaning and spot removal process
PL323618A1 (en) * 1996-12-20 1998-06-22 Tfl Ledertechnik Gmbh & Co Kg Hide processing compositions
GB0118156D0 (en) * 2001-07-25 2001-09-19 Pittards Plc Leather production

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR962038A (fr) * 1950-05-27
GB599261A (en) * 1944-05-18 1948-03-09 Nat Oil Prod Co Improvements in or relating to the fat liquoring of hides and skins
GB773825A (en) * 1954-02-18 1957-05-01 Nopco Chem Co Fat-liquoring compositions
US2974000A (en) * 1956-10-05 1961-03-07 Nopco Chem Co Fat-liquoring process
DE2219806A1 (de) * 1972-04-22 1973-10-31 Basf Ag Verfahren zum fetten von materialien faseriger struktur
DE3018201A1 (de) * 1980-05-13 1981-11-19 Henkel KGaA, 4000 Düsseldorf Verfahren zur raffination des rohen kondensationsproduktes aus aminoalkylalkanolaminen und fettsaeuren sowie gewuenschtenfalls zur anschliessenden gewinnung von amphotensiden mit erhoehter lagerstabilitaet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Römpps Chemielexikon, Seite 3817 (1977) *

Also Published As

Publication number Publication date
US4729767A (en) 1988-03-08
EP0184741A2 (fr) 1986-06-18
DE3444864A1 (de) 1986-06-12
DE3571835D1 (en) 1989-08-31
EP0184741A3 (en) 1987-05-13
ES8609486A1 (es) 1986-09-01
ES549667A0 (es) 1986-09-01
BR8506116A (pt) 1986-08-26

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