EP0362134B1 - Agent de traitement du cuir - Google Patents

Agent de traitement du cuir Download PDF

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Publication number
EP0362134B1
EP0362134B1 EP89810707A EP89810707A EP0362134B1 EP 0362134 B1 EP0362134 B1 EP 0362134B1 EP 89810707 A EP89810707 A EP 89810707A EP 89810707 A EP89810707 A EP 89810707A EP 0362134 B1 EP0362134 B1 EP 0362134B1
Authority
EP
European Patent Office
Prior art keywords
component
composition according
treatment composition
leather treatment
alkali metal
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 - Lifetime
Application number
EP89810707A
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German (de)
English (en)
Other versions
EP0362134A3 (fr
EP0362134A2 (fr
Inventor
Alain Dr. Lauton
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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Filing date
Publication date
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Publication of EP0362134A2 publication Critical patent/EP0362134A2/fr
Publication of EP0362134A3 publication Critical patent/EP0362134A3/fr
Application granted granted Critical
Publication of EP0362134B1 publication Critical patent/EP0362134B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C14C3/00—Tanning; Compositions for tanning
    • 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

Definitions

  • the present invention relates to leather treatment agents, their production and their use for the production of soft leather.
  • the manufacturing process of the leather treatment agent and its use for the production of soft leather form further subject matter of the invention.
  • Component (a) is known per se.
  • DE-OS-1,669,347 the esterification of alcoholic hydroxyl groups and lipophilic residues containing fat or oil-containing compounds with maleic anhydride.
  • EP-A-193 832 also discloses the separate use of a component (a) and a component (b).
  • the fatty acids of component (a) have 6 to 24, preferably 12 to 24 carbon atoms and can be saturated or unsaturated, e.g. capric, lauric, myristic, palmitic or stearic acid, or decenic, dodecenic, tetradecenic, hexadecenic, oleic, linoleic, linolenic or ricinoleic acid.
  • Suitable polyols of component (a) are 2- to 6-valent aliphatic alcohols having 2 to 18, preferably 2 to 12, carbon atoms. In particular, they are glycerol, trimethylolpropane, erythritol, mannitol, pentaerythritol and sorbitol.
  • the dicarboxylic acids of component (a) can be aliphatically saturated, ethylenically unsaturated or aromatic. Suitable aliphatically saturated dicarboxylic acids are malonic acid, succinic acid or higher homologues such as glutaric acid, adipic acid or pimelic acid or their anhydrides.
  • Ethylenically unsaturated dicarboxylic acids are preferably fumaric acid, maleic acid or itaconic acid, furthermore mesaconic acid, citraconic acid, glutaconic acid and methylene malonic acid.
  • Maleic anhydride is particularly mentioned as the anhydride of these acids.
  • Suitable aromatic dicarboxylic acids are phthalic acid, isophthalic acid, terephthalic acid and their anhydrides.
  • fatty alcohols are those with 12 to 24, preferably 12 to 22 carbon atoms. These alcohols can be saturated or unsaturated and branched or straight-chain and can be used alone or in a mixture. Natural alcohols such as e.g. Myristyl alcohol, cetyl alcohol, stearyl alcohol or oleyl alcohol or synthetic alcohols, e.g. Oxo-alcohols such as, in particular, 2-ethylhexanol, furthermore trimethylhexanol, trimethylnonyl alcohol, hexadecyl alcohol or alfoles can be used.
  • Natural alcohols such as e.g. Myristyl alcohol, cetyl alcohol, stearyl alcohol or oleyl alcohol or synthetic alcohols, e.g. Oxo-alcohols such as, in particular, 2-ethylhexanol, furthermore trimethylhexanol, trimethylnonyl alcohol, hexadecyl alcohol or alfoles can
  • the focus of interest is as component (a) a reaction product of glycerol, oleic acid and maleic anhydride or a reaction product of stearyl alcohol and maleic anhydride.
  • Component (a) is prepared in a manner known per se by esterifying the reaction product from a polyol and a fatty acid as defined or from a fatty alcohol or an alkoxylated fatty alcohol as defined with a dicarboxylic acid or its anhydride, the molar ratio of polyol: fatty acid: Dicarboxylic acid (or anhydride) 1: 1: 2, especially 1: 2: 1 and preferably 1: 2: 2 and the molar ratio of fatty alcohol: dicarboxylic acid (or anhydride) is 1: 1.
  • the reaction products obtained can optionally be treated with an alkali or ammonium sulfite, e.g. Na2SO3, Na2S2O5, (NH4) 2SO3 or NaHSO3 can be sulfated.
  • an alkali or ammonium sulfite e.g. Na2SO3, Na2S2O5, (NH4) 2SO3 or NaHSO3 can be sulfated.
  • component (b) The synthetic aromatic tannins of component (b) are known per se, e.g. from Ullmann's Encyclopedia of Industrial Chemistry Vol. 16, (4) 138-140 (1979) or J. Partridge Chemical Treatment of Hides and Leather, Noyes Data Corporation, Park Ridge N.Y. 1972.
  • aromatic tannins also called anionic aromatic syntans
  • uncondensed precursors or the alkali metal and ammonium salts of these compounds are synthetic, anionic, aromatic tannins (also called anionic aromatic syntans), as well as their uncondensed precursors or the alkali metal and ammonium salts of these compounds.
  • condensation products of types (I) - (III), (V) and (VII) - (X) are known, for example, from Ullmann's Encyclopedia of Industrial Chemistry, Vol. 16, (4), 140 (1979) and can be described in the The processes described there can be produced.
  • reaction product of type (VI) and its preparation are known from EP-A-0245205. These reaction products can be condensed to products of type (V) by methods known per se (cf. e.g. GB-C-683084).
  • the ready-to-use tanning salts that are suitable for the optional component (c) are described in the relevant specialist literature. These are usually chromium, aluminum, iron or zirconium salts. Examples of such salts are basic chromium (III) chloride or sulfate, a chrome alum, optionally basic aluminum chloride or sulfate, an alum, iron (III) chloride or sulfate, zirconium oxychloride and zirconium sulfate. Mixtures of the chlorine and aluminum salts mentioned are also well suited to be used as component (c).
  • non-tanning substances such as acidic inorganic salts, inorganic salts in combination with organic acid, non-swelling aromatic sulfonic acid, fluorosilicates or dextrin are suitable.
  • non-tanning substances such as acidic inorganic salts, inorganic salts in combination with organic acid, non-swelling aromatic sulfonic acid, fluorosilicates or dextrin are suitable.
  • examples of such substances are anhydrous sodium sulfate, sodium bisulfite, chrome alum and alkali fluorosilicates.
  • a sodium fluorosilicate or dextrin is preferred.
  • the leather treatment composition according to the invention is produced by simply mixing components (a) and (b) and optionally (c) and (d) in the presence of water, the components being mixed at temperatures between 20 and 100 ° C., preferably 20 and 90 ° C takes place. The homogeneous mixture obtained is then dried or spray dried to a powder.
  • the leather treatment composition according to the invention advantageously contains, based on the total composition, 10 to 40, preferably 25 to 35% by weight of component (a), 20 to 80, preferably 60 to 70% by weight of component (b), 0 to 50, preferably 0 to 35% by weight of component (c), 0 to 20, preferably 0 to 15% by weight of component (d), and ad 100% water.
  • the new treatment agents according to the invention are particularly suitable for the production of soft leathers.
  • the present application accordingly also relates to a method for treating leather.
  • the process is characterized in that the treatment of these materials is carried out before or very particularly after the dyeing with the leather treatment agent according to the invention.
  • the conventional methods are used to treat pale or pretanned leather with an aqueous solution which contains the treatment agent according to the invention and then treat the material thus treated in the usual way, e.g. by neutralizing, washing out, greasing and drying. If desired, staining can be done.
  • 50 to 300, preferably 140 to 180 parts by weight of water and 5 to 40 parts by weight of the treatment agent according to the invention are used per 100 parts by weight of leather or leather.
  • 100 parts by weight of descaled, preferably decalcified are tanned with 140 to 160 parts by weight of water and 10 to 20 parts of the treatment agent according to the invention, or 100 parts by weight in a conventional manner, chrome-tanned leather neutralized with, for example, formates or bicarbonates, with 140 to 160 parts by weight of water and 5 to 15 parts retanned the treatment agent according to the invention.
  • the tanned material is rinsed and, if necessary, subsequently greased with a commercially available fatliquor based on, for example, sulfonated fish oil, sperm oil or claw oil. After drying, a light, brilliant leather is obtained, which has good lightfastness, a firm, compact, smooth grain and a soft handle.
  • glycerol monooleate maleate (technical) prepared according to Example 1 are (technically) in a solution of 77.3 parts of sodium salt of polyhydroxypolyphenylsulfonic sulfonic acid, 146 parts of chromium salt, which contains 81.45 parts of Cr (OH) SO4 (corresponding to 25.62 parts of chromium), and 130 parts of water.
  • This mixture is sprayed into a dry powder. This gives 288.3 parts of a powder which contains 77.3 parts of phenolic tanning agent, 146 parts of chromium salt, 55 parts of fatliquor and 10 parts of water.
  • the viscous emulsion obtained is mixed with a solution of 170 parts of polyhydroxypolyphenylsulfonic sulfonic acid, 40 parts of water and 110 parts of 48% sodium hydroxide solution. This mixture is sprayed into a dry powder. This gives 291 parts of a powder which contains 196 parts of phenolic tanning agent, 90 parts of fatliquor and 5 parts of water.
  • 100 parts of decalcified veal pellet are treated with 150 parts of water and 10 parts of the composition prepared according to Example 2 for 24 hours at 20 ° C. in a rolling barrel. After about 10 hours of storage, stretching and then hanging drying, you get an excellent soft leather with a slim handle and good volume.
  • the leather After washing out 100 parts of folded, neutralized chrome grain calf leather, the leather is washed with 1 part of the leather dye C.I. Acid Brown 189, dyed at 50 ° C. for 20 minutes, then aftertreated with 10 parts of the composition prepared according to Example 1 for 1 hour at 50 ° C. After acidification with 0.5 part of 85% formic acid, store for 10 hours, stretch out, vacuum dry, 1 minute at 75 ° C and then hang dry, without further softening a brown colored, brilliant soft leather with good fullness is obtained.
  • the leather dye C.I. Acid Brown 189 dyed at 50 ° C. for 20 minutes
  • 10 parts of the composition prepared according to Example 1 for 1 hour at 50 ° C.
  • After acidification with 0.5 part of 85% formic acid store for 10 hours, stretch out, vacuum dry, 1 minute at 75 ° C and then hang dry, without further softening a brown colored, brilliant soft leather with good fullness is obtained.

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (21)

  1. Composition pour le traitement du cuir, caractérisée en ce qu'elle contient
    (a) un produit éventuellement sulfoné issu de la réaction d'un acide gras saturé ou insaturé comportant de 6 à 24 atomes de carbone, d'un polyol comportant de 2 à 18 atomes de carbone et d'un acide dicarboxylique aliphatique ou aromatique ou de son anhydride, ou de la réaction d'un alcool gras éventuellement alcoxylé comportant de 12 à 24 atomes de carbone et d'un acide dicarboxylique ou de son anhydride,
    (b) une substance de tannage aromatique synthétique ou son précurseur non condensé ou alors le sel de métal alcalin ou d'ammonium de celui-ci.
    (c) un sel hydrosoluble de chrome, d'aluminium, de fer ou de zirconium ou un mélange de ceux-ci, et
    (d) un agent de conditionnement.
  2. Composition pour le traitement du cuir conforme à la revendication 1, caractérisée en ce que, dans le composant (a), les acides gras comportent de 12 à 14 atomes de carbone, les polyols comportent de 2 à 12 atomes de carbone et les alcools gras comportent de 12 à 24 atomes de carbone.
  3. Composition pour le traitement du cuir conforme à la revendication 1, caractérisée en ce qu'elle contient, comme composant (a), un produit issu de la réaction de glycérol, d'acide oléique et d'anhydride maléique.
  4. Composition pour le traitement du cuir conforme à la revendication 1, caractérisée en ce qu'elle contient, comme composant (a), un produit issu de la réaction d'alcool stéarylique et d'anhydride maléique.
  5. Composition pour le traitement du cuir conforme à la revendication 1, caractérisée en ce qu'elle contient, comme composant (b) une substance de tannage aromatique anionique synthétique ou son précurseur non condensé.
  6. Composition pour le traitement du cuir conforme à la revendication 5, caractérisée en ce que le composant (b) contient un produit de condensation de phénol ou de crésol sulfonés et de formaldéhyde ou son sel de métal alcalin ou d'ammonium.
  7. Composition pour le traitement du cuir conforme à la revendication 5, caractérisée en ce que le composant (b) contient un produit de condensation d'acide naphtalènesulfonique et de formaldéhyde ou son sel de métal alcalin ou d'ammonium.
  8. Composition pour le traitement du cuir conforme à la revendication 5, caractérisée en ce que le composant (b) contient le produit de condensation de 4,4'-dihydroxydiphénylsulfones et d'(hydroxy)arylsulfones avec du formaldéhyde ou leur sel de métal alcalin ou d'ammonium.
  9. Composition pour le traitement du cuir conforme à la revendication 5, caractérisée en ce que le composant (b) contient un produit de condensation de composés aromatiques hydroxylés contenant des groupes sulfo avec des halogénures d'aralkyle et du formaldéhyde ou son sel de métal alcalin ou d'ammonium.
  10. Composition pour le traitement du cuir conforme à la revendication 5, caractérisée en ce que le composant (b) contient un produit de condensation d'acide phénolsulfoniques ou de phénoles et de formaldéhyde et d'urée ou son sel de métal alcalin ou d'ammonium.
  11. Composition pour le traitement du cuir conforme à la revendication 5, caractérisée en ce que le composant (b) contient un produit de condensation de diaryléthers sulfonés et de formaldéhyde ou son sel de métal alcalin ou d'ammonium.
  12. Composition pour le traitement du cuir conforme à la revendication 5, caractérisée en ce que le composant (b) contient un produit de condensation de di-ou terphényles sulfonés et de formaldéhyde ou son sel de métal alcalin ou d'ammonium.
  13. Composition pour le traitement du cuir conforme à la revendication 5, caractérisée en ce que le composant (b) contient un produit de condensation de 4,4'-dihydroxydiphénylsulfones et de 4,4'dihydroxydiphénylsulfone sulfonée et de formaldéhyde ou son sel de métal alcalin ou d'ammonium.
  14. Composition pour le traitement du cuir conforme à la revendication 5, caractérisée en ce que le composant (b) contient un produit de condensation d'acide diaryléthersulfonique et de 4,4'dihydroxydiphénylsulfone et de formaldéhyde ou son sel de métal alcalin ou d'ammonium.
  15. Composition pour le traitement du cuir conforme à la revendication 5, caractérisée en ce que le composant (b) contient un produit issu de la réaction de phénol et d'un agent de sulfonation ou son sel de métal alcalin ou d'ammonium, le rapport en moles (phénol)/(SO₃) étant égal à 1/1,1 à 1/2,2.
  16. Composition pour le traitement du cuir conforme à la revendication 1, caractérisée en ce qu'elle contient comme composant facultatif (c) un sel de chrome.
  17. Composition pour le traitement du cuir conforme à la revendication 1, caractérisée en ce qu'elle contient
    de 10 à 40 % en poids du composant (a),
    de 20 à 80 % en poids du composant (b),
    de 0 à 50 % en poids du composant (c),
    de 0 à 20 % en poids du composant (d),
    et une quantité suffisante d'eau pour obtenir 100 %.
  18. Utilisation de la composition pour le traitement du cuir conforme à une des revendications 1 à 17 pour la préparation de cuirs souples.
  19. Procédé de traitement de cuirs, caractérisé en ce que l'on traite ces matériaux pendant ou après la teinture avec une composition contenant
    (a) un produit éventuellement sulfoné issu de la réaction d'un acide gras saturé ou insaturé comportant de 6 à 24 atomes de carbone, d'un polyol comportant de 2 à 18 atomes de carbone et d'un acide dicarboxylique aliphatique ou aromatique ou de son anhydride, ou de la réaction d'un alcool gras éventuellement alcoxylé comportant de 12 à 24 atomes de carbone et d'un acide dicarboxylique ou de son anhydride,
    (b) une substance de tannage aromatique synthétique ou son précurseur non condensé ou alors le sel de métal alcalin ou d'ammonium de celui-ci,
    (c) un sel hydrosoluble de chrome, d'aluminium, de fer ou de zirconium ou un mélange de ceux-ci, et
    (d) un agent de conditionnement.
  20. Procédé conforme à la revendication 19 caractérisé en ce que l'on effectue le traitement avec la composition après la teinture.
  21. Cuirs traités conformément aux revendications 19 et 20.
EP89810707A 1988-09-28 1989-09-19 Agent de traitement du cuir Expired - Lifetime EP0362134B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH361388 1988-09-28
CH3613/88 1988-09-28

Publications (3)

Publication Number Publication Date
EP0362134A2 EP0362134A2 (fr) 1990-04-04
EP0362134A3 EP0362134A3 (fr) 1992-01-08
EP0362134B1 true EP0362134B1 (fr) 1994-11-30

Family

ID=4259749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89810707A Expired - Lifetime EP0362134B1 (fr) 1988-09-28 1989-09-19 Agent de traitement du cuir

Country Status (9)

Country Link
EP (1) EP0362134B1 (fr)
JP (1) JPH02133500A (fr)
KR (1) KR900004943A (fr)
AR (1) AR245225A1 (fr)
BR (1) BR8904924A (fr)
DE (1) DE58908686D1 (fr)
ES (1) ES2064485T3 (fr)
MX (1) MX170257B (fr)
PT (1) PT91819B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101948714B (zh) * 2010-09-13 2012-05-30 四川亭江新材料股份有限公司 一种阳离子合成鲸蜡油加脂剂的制备方法
CN103290148B (zh) * 2013-06-13 2015-06-24 浙江金鑫皮革有限公司 山羊仿牛仔纹鞋面革制作工艺
WO2025226145A1 (fr) * 2024-04-23 2025-10-30 Silver Tech De Mexico Sa De Cv Méthode d'élaboration d'une composition lubrifiante nanométrique pour de la peau tannée

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1669347A1 (de) * 1967-03-25 1971-05-06 Henkel & Cie Gmbh Verfahren zum Fetten von Leder
FR2348975A1 (fr) * 1976-04-23 1977-11-18 Jallatte Sa Procede pour la fabrication d'un cuir capable de resister aux agents alcalins et en particulier a la transpiration,au ciment et a la chaux,et cuir obtenu par ce procede
DE3419405A1 (de) * 1984-05-24 1985-11-28 Henkel KGaA, 4000 Düsseldorf Verfahren zur herstellung von leder und pelzen
DE3507241A1 (de) * 1985-03-01 1986-09-04 Henkel KGaA, 4000 Düsseldorf Verfahren zur herstellung wasserdichter leder oder pelze

Also Published As

Publication number Publication date
PT91819A (pt) 1990-03-30
PT91819B (pt) 1995-08-09
JPH02133500A (ja) 1990-05-22
BR8904924A (pt) 1990-05-08
MX170257B (es) 1993-08-12
DE58908686D1 (de) 1995-01-12
EP0362134A3 (fr) 1992-01-08
KR900004943A (ko) 1990-04-13
AR245225A1 (es) 1993-12-30
EP0362134A2 (fr) 1990-04-04
ES2064485T3 (es) 1995-02-01

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