EP0634517B1 - Verfahren zum Färben von Pelzfellen mit Oxidationsfarbstoffen - Google Patents

Verfahren zum Färben von Pelzfellen mit Oxidationsfarbstoffen Download PDF

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Publication number
EP0634517B1
EP0634517B1 EP94110399A EP94110399A EP0634517B1 EP 0634517 B1 EP0634517 B1 EP 0634517B1 EP 94110399 A EP94110399 A EP 94110399A EP 94110399 A EP94110399 A EP 94110399A EP 0634517 B1 EP0634517 B1 EP 0634517B1
Authority
EP
European Patent Office
Prior art keywords
mordant
metal
acid
liquor
glyoxylic acid
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
EP94110399A
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German (de)
English (en)
French (fr)
Other versions
EP0634517A1 (de
Inventor
Hubert Dipl.-Ing. Herdt
Josef Hurt
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.)
Hoechst AG
Original Assignee
Hoechst AG
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Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0634517A1 publication Critical patent/EP0634517A1/de
Application granted granted Critical
Publication of EP0634517B1 publication Critical patent/EP0634517B1/de
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/30—Material containing basic nitrogen containing amide groups furs feathers, dead hair, furskins, pelts
    • D06P3/3041—Material containing basic nitrogen containing amide groups furs feathers, dead hair, furskins, pelts using vat, sulfur or indigo dyes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
    • Y10S8/93—Pretreatment before dyeing

Definitions

  • the fur is usually treated with a pickling solution before coloring with oxidation dyes.
  • the purpose of the stain is to make the dyeings light, washable, storable and sublimation-free.
  • the stains on a stain are much more intense and vivid.
  • Metal salts mainly chromium and iron salts, in rare cases copper salts, are used as pickling agents.
  • the present invention relates to a process for dyeing fur skins with oxidation dyes, in which the fur skins are first pretreated and then dyed, which is characterized in that the fur skins are pretreated with a metal stain containing glyoxylic acid.
  • Metal salts mainly chromium or iron salts, are used as pickling agents.
  • the dichromate concentration is usually between 0.1 and 7 g / l pickling liquor, the pH of the stain being in the range between 3 and 5. It has been shown that at higher pH values between pH 5 and 7, only a little dichromate is absorbed, even if the concentration is chosen to be relatively strong. If the pH values are lower than 3, the hair already hardens. The amount of dichromate to be applied to the hair can therefore be regulated by the pH value and also by the dichromate concentration.
  • a mild pickling effect is achieved on the one hand with a quantity of dichromate of 2 to 5 g / l pickling liquor if the acid addition is low and on the other hand with a quantity of dichromate of 0.3 to 0.5 g / l pickling liquor at a pH of 3.5 to 4.
  • a strong pickling effect is achieved with 0.5 to 1 g dichromate per liter pickling liquor at a low pH.
  • Glyoxylic acid is used to adjust the pH, but the addition of other acids, e.g. Formic acid, acetic acid or glycolic acid is conceivable.
  • the content of glyoxylic acid per liter of pickling liquor depends on the desired pH and is between 1 and 7 g / l pickling liquor.
  • the amount of acid is about 1.5 to 3 g glyoxylic acid per liter pickling liquor. If the addition of acid is too low, uneven colorations are obtained, and if the addition of acid is too high, the coloring becomes weaker than with normal addition of acid.
  • the acid addition also plays a special role in iron pickling. Iron stains with too little acid tend to oxidize. The baths become cloudy due to the formation of yellow-brown basic ferrisulfate and ferrihydroxide and, when standing, deposit brown sludge. A sufficient amount of acid, preferably glyoxylic acid, in the stain can prevent the formation of the poorly soluble iron compounds. Usually 1.5 to 3 g of glyoxylic acid, based on one liter of pickling liquor, are added to the iron stain.
  • stains which contain combinations of the metal salts with one another are also suitable. These include: the copper-iron stain, the chrome-copper stain, the iron-chrome alum stain and the copper-chrome alum stain.
  • the mordants used according to the invention usually contain a certain amount of degreasing agent.
  • Preferred degreasing agents are fatty alcohol polyglycol ethers with 5 to 12 EO units, for example ® Remolgan CX, ® Genapol UD O50, ® Genapol UD O80 (manufacturer: Hoechst AG).
  • the glyoxylic acid is usually added to the pickling liquor in the form of an aqueous solution, preferably 40-50% by weight.
  • the pickling process is generally carried out in reels, fur turns or closed vessels (drum, barrel).
  • the temperature is advantageously 20 to 40 ° C, while the duration varies between 3 and 24 hours.
  • the skins are rinsed briefly, if necessary, then spun well and finally come to the dye bath. Thorough rinsing is never beneficial, as otherwise some of the pickling salts that are absorbed will be washed out again.
  • the purpose of rinsing is only to remove excess metal salts and acids. Are the stains, e.g. Dichromate stain, applied with little acid, so rinsing can be avoided. It is sufficient to centrifuge the skins well.
  • a total of 8.0 ml of H 2 O 2 (30% by weight) / l of dye liquor are used for the oxidation.
  • the dyeing takes place at 35 ° C for a total of 6 hours.
  • the undercoat had a brown tinge. Recolouring was necessary here.
  • the dichromate content is 527 mg / l pickling liquor.
  • the leather side of the fur skins stained with glyoxylic acid is incomparably softer and more tear-resistant than that of those treated by the conventional method.
  • a total of 8.0 ml of H 2 O 2 (30% by weight) / l of dye liquor are used for the oxidation.
  • the dyeing takes place at 35 ° C for a total of 6 hours.
  • a total of 5.0 ml H 2 O 2 (30% by weight) / l dyeing liquor is used for the oxidation.
  • a total of 3 1/2 hours are stained at 35 ° C.
  • the leather side of the fur skins stained with glyoxylic acid is significantly softer and more tear-resistant than that of those treated with the conventional method.
  • a total of 5.0 ml H 2 O 2 (30% by weight) / l dyeing liquor is used for the oxidation.
  • a total of 3 1/2 hours are stained at 35 ° C.
  • the dichromate content after finishing the pickling is 478 mg / l pickling liquor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)
EP94110399A 1993-07-10 1994-07-04 Verfahren zum Färben von Pelzfellen mit Oxidationsfarbstoffen Expired - Lifetime EP0634517B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4323123A DE4323123A1 (de) 1993-07-10 1993-07-10 Verfahren zum Färben von Pelzfellen mit Oxidationsfarbstoffen
DE4323123 1993-07-10

Publications (2)

Publication Number Publication Date
EP0634517A1 EP0634517A1 (de) 1995-01-18
EP0634517B1 true EP0634517B1 (de) 1996-06-12

Family

ID=6492491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94110399A Expired - Lifetime EP0634517B1 (de) 1993-07-10 1994-07-04 Verfahren zum Färben von Pelzfellen mit Oxidationsfarbstoffen

Country Status (10)

Country Link
US (1) US5466263A (el)
EP (1) EP0634517B1 (el)
JP (1) JPH07138887A (el)
CN (1) CN1100765A (el)
CA (1) CA2127648A1 (el)
DE (2) DE4323123A1 (el)
ES (1) ES2091073T3 (el)
FI (1) FI943248A (el)
GR (1) GR3020231T3 (el)
RU (1) RU2130984C1 (el)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1061724C (zh) * 1996-12-24 2001-02-07 中国科学院新疆化学研究所 用有机溶剂制备漂白特种动物绒毛的方法
CN103669032A (zh) * 2012-09-19 2014-03-26 浙江中辉皮草有限公司 一种毛皮氧化染色铬媒染液循环使用方法
CN104372694B (zh) * 2014-10-30 2016-08-24 北京泛博化学股份有限公司 一种白狐皮花色加工方法
CN104448895B (zh) * 2014-11-10 2017-01-11 北京泛博化学股份有限公司 裘皮用新型环保酸性蓝光红色染料及合成方法
FR3037240B1 (fr) 2015-06-12 2018-11-23 L'oreal Procede de coloration capillaire en plusieurs etapes mettant en œuvre au moins un sel de titane et un colorant direct synthetique
CN105754368A (zh) * 2016-02-16 2016-07-13 北京泛博清洁技术研究院有限公司 一种红色染料及其合成方法、染色液及毛皮的染色方法
CN112376299A (zh) * 2020-11-26 2021-02-19 华斯控股股份有限公司 一种环保型毛皮染色工艺

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE260897C (el) *
DE963863C (de) * 1953-08-05 1957-05-16 Alfons Erdkamp Verfahren zur Herstellung einer Chrombeize zur Fixierung von Chromfarbstoffen auf Textilien
DE936863C (de) * 1954-04-27 1955-12-22 Schloemann Ag Vorrichtung zum Bremsen und Richten des in einen Bandhaspel einlaufenden Walzgutes
US4348201A (en) * 1979-05-11 1982-09-07 Seitetsu Kagaku Co., Ltd. Tanning process and tanning compositions
DE3022849C2 (de) * 1980-06-19 1983-06-09 Riedel-De Haen Ag, 3016 Seelze Verfahren zum Desinfizieren und Konservieren von Rohhäuten
SU969728A1 (ru) * 1981-02-20 1982-10-30 Джамбулский технологический институт легкой и пищевой промышленности Способ подготовки голь к хромовому дублению
SU1240810A1 (ru) * 1984-10-31 1986-06-30 Всесоюзный Заочный Институт Советской Торговли Способ обработки меховых шкур перед крашением окислительными красител ми
DE3516842A1 (de) * 1985-05-10 1986-11-13 Hoechst Ag, 6230 Frankfurt Verfahren zur chromspargerbung
LU86314A1 (fr) * 1986-02-20 1987-09-10 Oreal Procede de teinture des fibres keratiniques humaines avec le 5,6-dihydroxyindole et un anion metallique
SU1542957A1 (ru) * 1987-08-05 1990-02-15 Proizv Mekhovoe Ob Tysmenitsa Способ крашения меха
SU1490161A1 (ru) * 1987-11-09 1989-06-30 Московская ветеринарная академия им.К.И.Скрябина Способ выделки меховых шкур северного олен
SU1511278A1 (ru) * 1987-12-30 1989-09-30 Киевский технологический институт легкой промышленности Способ обработки меховых овчин
DE3814220A1 (de) * 1988-04-27 1989-11-09 Hoechst Ag Verfahren zur chromspargerbung
DE3822823A1 (de) * 1988-07-06 1990-01-11 Henkel Kgaa Gerbverfahren mit hoher chromauszehrung der gerbflotten
DE4009805C1 (el) * 1990-03-27 1991-12-05 Dr. Th. Boehme Kg Chem. Fabrik Gmbh & Co, 8192 Geretsried, De

Also Published As

Publication number Publication date
CA2127648A1 (en) 1995-01-11
EP0634517A1 (de) 1995-01-18
ES2091073T3 (es) 1996-10-16
US5466263A (en) 1995-11-14
RU94026294A (ru) 1997-04-27
FI943248A0 (fi) 1994-07-07
FI943248A (fi) 1995-01-11
JPH07138887A (ja) 1995-05-30
DE4323123A1 (de) 1995-01-12
CN1100765A (zh) 1995-03-29
RU2130984C1 (ru) 1999-05-27
GR3020231T3 (en) 1996-09-30
DE59400347D1 (de) 1996-07-18

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