EP0428481B1 - Mittel zur Behandlung von Leder und Pelzen - Google Patents

Mittel zur Behandlung von Leder und Pelzen Download PDF

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Publication number
EP0428481B1
EP0428481B1 EP90810849A EP90810849A EP0428481B1 EP 0428481 B1 EP0428481 B1 EP 0428481B1 EP 90810849 A EP90810849 A EP 90810849A EP 90810849 A EP90810849 A EP 90810849A EP 0428481 B1 EP0428481 B1 EP 0428481B1
Authority
EP
European Patent Office
Prior art keywords
process according
component
parts
acid
formaldehyde
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
EP90810849A
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German (de)
English (en)
French (fr)
Other versions
EP0428481A1 (de
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.)
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
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Filing date
Publication date
Application filed by Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of EP0428481A1 publication Critical patent/EP0428481A1/de
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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
    • C14C3/08Chemical tanning by organic agents
    • 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
    • C14C3/08Chemical tanning by organic agents
    • C14C3/10Vegetable tanning
    • C14C3/12Vegetable tanning using purified or modified vegetable tanning agents
    • 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

Definitions

  • the present invention relates to an agent for treating leather and furs, a method for treating these materials and the use of the agent for producing wet-white leather and furs.
  • condensation products of types (I), (III) and (IV) are known, for example, from Ullmann's Encyclopedia of Industrial Chemistry, Vol. 16, (4), 140 (1979) and can be prepared by the processes described in the references given there.
  • the production can also be carried out under a protective gas such as nitrogen, helium and carbon dioxide.
  • reaction product of type (II) and its preparation are known from EP-A-0245205.
  • Preferred anionic aromatic syntans are those of groups (I) and (IV), where as (hydroxy) arylsulfonic acid, sulfonated (hydroxy) -naphthalene and sulfonated xylene (as technical mixture), and as diaryl ether sulfonic acid, sulfonated Ditolyl ethers are preferred.
  • component (B) such polymers and copolymers of (meth) acrylic acid, maleic acid, itaconic acid and / or their hydroxy compounds are mentioned which have a molecular weight of 1000 to 30,000, particularly 2000 to 15,000. These polymer compounds can be prepared in a manner known per se (cf., for example, E. Müller, Houben-Weyl, Methods of Organic Chemistry, Volume 14 / I, 1961, 1010-1080 and Volume 14 / II, 1963, 631-633 and 705 -713; Kirk-Othmer (3rd) volume 20, 216-219 and FR-A-2 463 810).
  • the weight ratio of the anionic aromatic syntan to component (B) is advantageously 1: 0.03 to 2.2, preferably 1: 0.05 to 2.0.
  • the agent according to the invention can additionally contain a saturated mono- or dicarboxylic acid with a total of 1 to 8 carbon atoms, such as the ants, vinegar, propion, n-butter, isobutter, n-valerian, trimethyl vinegar, capron, Contain n-heptyl, caprylic, oxalic, malonic, amber, glutaric, adipic, pimelic and cork acids.
  • the weight ratio of the component (A) to this acid [component (C)] is 1: 0 to 0.08, preferably 1: 0 to 0.05.
  • the agent according to the invention can also, as optional component (D), a sequestering agent such as the tetrasodium salt of ethylenediaminetetraacetic acid and the neutral or acidic sodium pyrophosphate, in a weight ratio of component (A) to component (D) of 1: 0 to 0.08, preferably 1: 0 up to 0.05.
  • a sequestering agent such as the tetrasodium salt of ethylenediaminetetraacetic acid and the neutral or acidic sodium pyrophosphate
  • a weight ratio of component (A) to component (D) of 1: 0 to 0.08, preferably 1: 0 up to 0.05.
  • the optional component (D) acts as a complexing agent and is preferably used in the composition in the case of an iron-free treatment agent, provided the iron content of the oleum used in the production of component (A) is relatively high.
  • the agent according to the invention can be used for pre-tanning leather or for tanning furs.
  • a method for producing wet-white leather and furs thus represents a further subject of the invention.
  • the process for producing wet-white leather and furs is characterized in that after pickling these materials are treated in the presence of a water-soluble chromium, aluminum, iron or zirconium salt or a mixture thereof with an agent according to the invention.
  • the salts that can be used are ready-to-use tanning salts and are described in the relevant specialist literature.
  • 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 chromium and aluminum salts mentioned can also be used well.
  • the aluminum salts and especially the aluminum sulfate Al2 (SO4) 3 ⁇ 16 H2O.
  • the weight ratio, agent according to the invention (as a dry substance) to aluminum salt (as Al2O3) is 1: 0.08 to 1.5, preferably 1: 0.1 to 1.0.
  • Agents according to the invention which do not contain any of the salts mentioned can also be used as retanning agents with good filling and softening properties.
  • the conventional methods are used to treat pickled pelts or furs (skins) with an aqueous solution which contains the agent according to the invention, and then to wet-white material thus obtained in the usual way with vegetable or synthetic tanning agents or chrome tanning agents is tanned.
  • 100 to 200, preferably 100 to 150 parts by weight of water and 3 to 30 parts by weight of the aqueous composition according to the invention are used per 100 parts by weight of pale or fur.
  • Wet-white materials with a shrinking temperature of 60 to 75 ° C., good light fastness and a light intrinsic color are obtained.
  • agents according to the invention are particularly well suited for the production of wet white leather and furs, their use for this purpose represents a further subject of the invention.
  • the preparation of the agent according to the invention is generally carried out in such a way that an aqueous solution of component (A) is optionally mixed with components (C) and (D) and then with component (B).
  • the aqueous compositions according to the invention preferably contain 64 to 76% by weight of component (A), 18 to 36% by weight of component (B), 0 to 7% by weight of component (C), 0 to 4% by weight of the component (D) and ad 100% by weight water.
  • the agents thus obtained are liquid and have good storage stability. However, they can be dried if necessary.
  • 100 parts of the sulfonation mixture obtained by heating 520 parts of naphthalene and 560 parts of concentrated sulfuric acid at 140 to 160 ° C. for several hours to water solubility, are obtained with 56 parts of a dihydroxydiphenyl sulfone, obtained by heating 540 parts of phenol and 180 parts of 60% for 3 hours. oleum to 170 to 180 ° C and distilling off the excess phenol, and 50 parts of water and 29 parts of formaldehyde (37%) heated at 105 to 110 ° C for 1 hour. The product obtained is then made weakly acidic with ammonia. A water-soluble clear solution is obtained which has a dry content of 51%.
  • 100 parts of the sulfonation mixture obtained by heating 160 parts of xylene mixture and 240 parts of concentrated sulfuric acid at 130 to 135 ° C. for several hours to water solubility, are mixed with 40 parts of a dihydroxydiphenyl sulfone, 32 parts of water and 35 parts of formaldehyde [37%] for 3 hours heated to 100 to 105 ° C.
  • the product obtained is then made weakly acidic with ammonia.
  • a water-soluble clear solution is obtained which has a dry content of 60%.

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)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Cosmetics (AREA)
EP90810849A 1989-11-13 1990-11-06 Mittel zur Behandlung von Leder und Pelzen Expired - Lifetime EP0428481B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH407089 1989-11-13
CH4070/89 1989-11-13

Publications (2)

Publication Number Publication Date
EP0428481A1 EP0428481A1 (de) 1991-05-22
EP0428481B1 true EP0428481B1 (de) 1994-12-14

Family

ID=4269260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810849A Expired - Lifetime EP0428481B1 (de) 1989-11-13 1990-11-06 Mittel zur Behandlung von Leder und Pelzen

Country Status (8)

Country Link
US (1) US5256317A (pt)
EP (1) EP0428481B1 (pt)
JP (1) JPH03177500A (pt)
KR (1) KR910009936A (pt)
AR (1) AR248431A1 (pt)
BR (1) BR9005717A (pt)
DE (1) DE59008012D1 (pt)
ES (1) ES2066189T3 (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1362128B1 (en) * 2001-01-26 2005-03-09 Clariant Finance (BVI) Limited Production of tanned leather and products suitable therefore

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX9204788A (es) * 1991-08-22 1993-04-01 Sandoz Ag Proceso para la produccion de curtido o recurtido mineral de cuero o piel
ES2090936T3 (es) * 1992-06-09 1996-10-16 Ciba Geigy Ag Procedimiento para el tratamiento ulterior de cuero curtido y pieles.
DE10140551A1 (de) 2001-08-17 2003-02-27 Basf Ag Verfahren zur Herstellung sulfonhaltiger Gerbstoffe
BR0308353A (pt) * 2002-03-15 2005-01-25 Basf Ag Processo para a produção de produtos semi-acabados e intermediários, produtos semi-acabados ou intermediários na produção de couro, e, uso dos mesmos
US7118603B2 (en) * 2002-07-15 2006-10-10 Council Of Scientific And Industrial Research Process for the preparation of a formaldehyde-free synthetic tanning agent
DE10250112A1 (de) * 2002-10-28 2004-05-06 Bayer Ag Kondensationsprodukt zum Nachgeben von Fe-gegerbtem Leder
WO2005014865A1 (en) * 2003-08-12 2005-02-17 Council Of Scientific And Industrial Research A process for the preparation of a synthetic tanning agent
CN103045776A (zh) * 2012-12-14 2013-04-17 常熟常圣服饰有限公司 一种裘皮毛服装的生产方法
CN105238888A (zh) * 2015-10-27 2016-01-13 兴业皮革科技股份有限公司 一种基于锆铝钛配合物制备白湿革的生产工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463810A1 (fr) * 1979-08-24 1981-02-27 Rhone Poulenc Ind Compositions tannantes a base de sels d'aluminium et leurs procedes de mise en oeuvre
DE3141496A1 (de) * 1981-10-20 1983-04-28 Basf Ag, 6700 Ludwigshafen Polymergerbstoff und verfahren zum nachgerben
US4830632A (en) * 1986-05-05 1989-05-16 Ciba-Geigy Corporation Aqueous composition from a sulfonated phenol, an amine and a tanning salt, process for the production thereof and use thereof as a tanning agent

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1362128B1 (en) * 2001-01-26 2005-03-09 Clariant Finance (BVI) Limited Production of tanned leather and products suitable therefore

Also Published As

Publication number Publication date
US5256317A (en) 1993-10-26
EP0428481A1 (de) 1991-05-22
BR9005717A (pt) 1991-09-17
KR910009936A (ko) 1991-06-28
JPH03177500A (ja) 1991-08-01
AR248431A1 (es) 1995-08-18
ES2066189T3 (es) 1995-03-01
DE59008012D1 (de) 1995-01-26

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