WO2011094942A1 - Composition de nettoyage pour le dégraissage et le feutrage de la laine - Google Patents

Composition de nettoyage pour le dégraissage et le feutrage de la laine Download PDF

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Publication number
WO2011094942A1
WO2011094942A1 PCT/CN2010/070523 CN2010070523W WO2011094942A1 WO 2011094942 A1 WO2011094942 A1 WO 2011094942A1 CN 2010070523 W CN2010070523 W CN 2010070523W WO 2011094942 A1 WO2011094942 A1 WO 2011094942A1
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WO
WIPO (PCT)
Prior art keywords
weight
formula
composition
dicarboxylic acid
wool
Prior art date
Application number
PCT/CN2010/070523
Other languages
English (en)
Inventor
Hongxia Wang
Weizhong Edric Tan
Original Assignee
Rhodia (China) Co., Ltd.
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 Rhodia (China) Co., Ltd. filed Critical Rhodia (China) Co., Ltd.
Priority to PCT/CN2010/070523 priority Critical patent/WO2011094942A1/fr
Publication of WO2011094942A1 publication Critical patent/WO2011094942A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/02—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents
    • D06L1/04—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents combined with specific additives
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents

Definitions

  • the present invention relates to a cleaning composition for the use in treatment and cleaning of crude wool.
  • the process for the production of wool fiber involves several steps.
  • One of the steps taken after wool is sheared is a scouring process; it involves the washing (scouring) of the wool to remove contaminants.
  • the type and amount of contaminants can vary according to breed, nutrition, environment and position of the wool on the animal.
  • Contaminants constitute of solvent-soluble fraction (wool grease and protein material) and a water-soluble fraction (largely perspiration salts collectively termed suint, dirt and vegetable matter in the form of burrs and seeds from pastures).
  • a fleece may contain up to 30% by weight of contaminants, depending on the animal, so it is important that the wool is treated before use.
  • Typical process of wool scouring goes through a first wash where water is warmed up to 60 degrees Celsius followed by cold rinses. Washed wool is passed through squeeze rollers and a hot-air drying chamber bringing the moisture content to the right level for the next step in processing.
  • nonionic detergents nonylphenol-ethylene oxide condensate detergents (described as ⁇ types, where X is a numeral denoting the number of moles of EO in the product, EO represents Ethoxylate).
  • the wool scouring detergent most commonly employed is a NPEO9 type.
  • NPEO detergents More recently, primary alcohol ethoxylate detergents have been added to the list of regular use. There are two reasons for using these in preference to NPEO types. The first is that residues of NPEO detergents are undesirable in products produced from refined wool grease. The second is that NPEO detergents are comparatively difficult to biodegrade, and their use may result in the introduction of relatively long-lived and toxic phenolic residues into the environment. Thus wool processors working to an "Environmental Choice" standard will prefer to use comparatively easily biodegraded and non-toxic alcohol ethoxylate products.
  • the mechanism involved for the removal of contaminants is based upon the structure of the detergent molecules which contain a hydrophobic part which is the hydrocarbon moiety and a hydrophilic portion formed of the polyoxy ethylene chain.
  • Wool grease is a very complex mixture, which consists mostly of esters of various long-chain fatty acids with long-chain alcohols and sterols. Technically it is a wax, rather than a fat, because glycerol esters are not present. Clearly the esters formed from these acids and alcohols form a bewildering variety, especially when one considers that the hydroxy-acids and the diols can form di-esters. In addition to the esters, free fatty acids are present, along with other impurities such as soaps (metal salts of fatty acids). Calcium soaps are particularly important. These arise mainly from the fellmongery production of slipe wool with lime-sulphide depilatories, and can cause problems in the centrifugal separation of wool grease as well as in wool grease refining.
  • lanolin is the product resulting from deodorisation, decolorisation, neutralisation and removal of entrained water (volatiles).
  • Lanolin is an important item of commerce.
  • the most sought-after product from wool grease is the mixed wool-wax alcohols. These are produced by hydrolysis (saponification) of the esters followed by solvent extraction of the alcohols. These are widely used in toiletries and medicinal preparations because of their ability to form stable emulsions entraining large amounts of water.
  • NPEO nonylphenol ethoxylates
  • Primary alcohol ethoxylates are preferred as they are comparatively easily biodegraded and non-toxic but they are not efficient in terms of scouring.
  • the object of the present invention is thus replacing NPEO with environment-friendly wool scouring composition and keeping the good performance as NPEO.
  • a mixture of a solvent and a surfactant produces greater efficiency in the removal of contaminants from crude wool and ease in wool grease refining.
  • a mixture of solvent and surfactant according to the present invention brings about an improved performance from the combination of surfactant and solvent cleaning mechanisms, for the removal of solvent-soluble and water-soluble contaminants.
  • the present invention provides a wool scouring composition
  • a wool scouring composition comprising:
  • R 1 and R 2 are identical or different, and represent a linear or branched, cyclic or noncyclic, C 1 -C 20 alkyl, aryl, alkylaryl or arylalkyl group, A represents a linear or branched divalent alkylene group; b) and at least one alcohol ethoxylate and/or amino alcohol ethoxylate surfactant.
  • the dicarboxylic acid diester is provided in the form of a mixture of different dicarboxylic acid diesters of formula (I).
  • A is a branched divalent C3-Cio alkylene group.
  • A is chosen from the group comprising the A M G group of formula -CH(CH 3 )-CH 2 -CH 2 -, the A ES group of formula -CH(C 2 H 5 )-CH 2 - and mixtures thereof.
  • the dicarboxylic acid diester is provided in the form of a mixture comprising the dicarboxylic acid diesters of following formulae ( ⁇ ), (I") and optionally (II) :
  • a MG is a group of formula -CH(CH 3 )-CH 2 -CH 2 -,
  • a ES is a group of formula -CH(C 2 H 5 )-CH 2 -,
  • R 1 and R 2 are identical or different, and represent a linear or branched, cyclic or noncyclic, Ci-C 2 o alkyl, aryl, alkylaryl or arylalkyl group.
  • R 1 and R 2 groups are preferably methyl groups.
  • the mixture of dicarboxylic acid diester comprises:
  • the surfactant b) is preferably a mixture of alcohol ethoxylates and amino alcohol ethoxylates, comprising the compounds of the following formula (III) and (IIF):
  • R 3 is a linear or branched alkyl group having between 6 and 22 carbon atoms, preferably between 10 and 13,
  • - x is between 3 and 30, preferably between 8 and 10,
  • R 4 is a linear or branched alkyl or alkenyl group having between 6 and 22 carbon atoms, preferably between 12 and 18,
  • - y+z is between 5 and 20, preferably between 10 and 15.
  • the surfactant b) is a mixture, preferably in form of an emulsion, comprising 30 to 60% by weight, preferably 50% by weight of the compound of formula (III), 10 to 40% by weight, preferably 30% by weight of the compound of formula ( ⁇ ) and 5 to 30% by weight, preferably 20 % by weight of water.
  • the ratio by weight of the surfactant b) to the dicarboxylic acid diester b)/a) is between 9/1 and 5/5, preferably between 8/2 and 7/3.
  • the composition comprises: a) from 10 to 50 % w/w, preferably from 20 to 30% w/w of a mixture comprising:
  • a particular composition of the present invention consists of a mixture of alcohol ethoxylates and amino alcohol ethoxylates, for example sent by Rhodia under the reference Rhodaterge® 218, and a mixture of branched dibasic esters, for example sent by Rhodia under the reference Rhodiasolv® IRIS, as follows:
  • Rhodaterge® 218 comprising:
  • Rhodiasolv® IRIS comprising:
  • dimethyl adipate from 0 to 10 % by weight of dimethyl adipate.
  • the present invention also aims the use of the above defined composition for the scouring of wool.
  • the concentration of the composition is less than 10%, preferably between 0.5 and 5%, and more preferably still between 0.8 and 1% w/w in water.
  • the cleaning performance of the invention is significantly better in- comparison to the state of the art.
  • One of the advantages of the present invention is that there is less residual surfactant in the centrifuged grease. Moreover, the formulation makes stable micro-emulsion at concentration of below 10% in water. In addition, the preferred used dosage for wool scouring is 0.8-1% w/w of the composition of the present invention in water.
  • the surfactants and diester solvents according to the present invention are easily biodegradable.
  • the cleaning of the wool is often carried out in two steps.
  • the first step is a washing step at a temperature preferably comprised between 30 and 70°C.
  • the second step is a rinsing step in which the wool is rinsed at least one time with "cold" water at a temperature comprised between 10 and 20°C.
  • the application of the product would be in the wool fiber cleaning market, where it can be used as a cleaning detergent in the scouring of wool or as an antistatic agent in the use for cabling.
  • the preferred applied dosage can be as low as 0.8 - 1% w/w.
  • Figure 1 represents three sheep fleece samples: before treatment, after a treatment according to comparative example 2 and after a treatment according to example 2.
  • the present invention promotes better cleaning and fluffier wool when compared to current art. Test conditions are conducted as follow:
  • the temperature set of the water bath in the launder-o-meter is 60 C and the wash time is set at 5 minutes, rotation speed of the launder-o-meter for agitation of capsules is fixed at 40 ⁇ 2 rpm.
  • the wool is rinsed under cool running water (10-20°C) at room temperature for 4 minutes. The moist wool is then subjected to 96°C in the oven until it is completely dried.
  • Whiteness of the treated wool is taken using a color-meter, under which the whiteness is represented by two different indices, Berger and Taube, the higher the value of the index the whiter the material tested.
  • the whiteness equipment can separately give two values:
  • W B erger 0.333 Y+125Z/Zn-125X/Xn;
  • the CIE Color Systems utilize three coordinates to locate a color in a color space , whiteness instrument can test the values of X,Y and Z using CIE XYZ standard at Standard Illuminant D65/10 0 , Zn and Xn are the calibrated values with the reference standard working white plate.
  • Rhodaterge® 218 It is shown that the cleaning effect of Rhodaterge® 218 is better than NP-9 when comparing the Berger and Taube indices which are two values to indicate the whiteness. Tests with different ratios show that the best performance comes when the ratio of Rhodaterge® 218 to Rhodiasolv® IRIS is 7 to 3.
  • composition of the present invention not only is a wool cleaner, but also makes the wool evidently fluffier than that washed with NP-9, where matting of wool is observed, as shown in Figure 1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention porte sur une composition de nettoyage destinée à être utilisée dans le traitement et le nettoyage de laine brute. La composition de dégraissage de la laine comprend au moins un diester d'acide dicarboxylique et au moins un tensioactif éthylate d'alcool et/ou éthylate d'aminoalcool.
PCT/CN2010/070523 2010-02-04 2010-02-04 Composition de nettoyage pour le dégraissage et le feutrage de la laine WO2011094942A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/070523 WO2011094942A1 (fr) 2010-02-04 2010-02-04 Composition de nettoyage pour le dégraissage et le feutrage de la laine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2010/070523 WO2011094942A1 (fr) 2010-02-04 2010-02-04 Composition de nettoyage pour le dégraissage et le feutrage de la laine

Publications (1)

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WO2011094942A1 true WO2011094942A1 (fr) 2011-08-11

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103018385A (zh) * 2012-11-21 2013-04-03 国家皮革质量监督检验中心（浙江） 一种洁厕剂中壬基酚聚氧乙烯醚的气相色谱-质谱检测方法
CN104101524A (zh) * 2014-07-07 2014-10-15 西北农林科技大学 一种快速提取纯化检测毛样蛋白方法
US9689088B2 (en) 2012-12-18 2017-06-27 Croda International Plc Woolscouring method and composition
CN109706007A (zh) * 2018-12-18 2019-05-03 珠海顺泽科技股份有限公司 一种印刷网板清洗液组合物

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0743358A1 (fr) * 1995-05-18 1996-11-20 Textil Color Ag Composition pour le lavage et la nettoyage de matériaux textiles
CN1179169A (zh) * 1995-03-24 1998-04-15 罗纳·布朗克化学公司 以二元酸酯和醚为主要成分的洗涤剂和/或除垢剂组合物
US6284720B1 (en) * 1999-09-03 2001-09-04 Vertec Biosolvents, Llc Environmentally friendly ink cleaning preparation
CN1354240A (zh) * 2000-11-22 2002-06-19 上海白猫有限公司 新型防蛀型羊毛织物洗涤剂
WO2009013207A1 (fr) * 2007-07-20 2009-01-29 Rhodia Operations Utilisation de diesters d'acide carboxylique pour le traitement de textiles et formulation
WO2009013208A1 (fr) * 2007-07-20 2009-01-29 Rhodia Operations Formulations de diesters d'acide carboxylique et leur utilisation pour le traitement de materiaux
CN101503648A (zh) * 2009-02-26 2009-08-12 深圳市合明科技有限公司 一种smt印刷网板的水基清洗剂

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1179169A (zh) * 1995-03-24 1998-04-15 罗纳·布朗克化学公司 以二元酸酯和醚为主要成分的洗涤剂和/或除垢剂组合物
EP0743358A1 (fr) * 1995-05-18 1996-11-20 Textil Color Ag Composition pour le lavage et la nettoyage de matériaux textiles
US6284720B1 (en) * 1999-09-03 2001-09-04 Vertec Biosolvents, Llc Environmentally friendly ink cleaning preparation
CN1354240A (zh) * 2000-11-22 2002-06-19 上海白猫有限公司 新型防蛀型羊毛织物洗涤剂
WO2009013207A1 (fr) * 2007-07-20 2009-01-29 Rhodia Operations Utilisation de diesters d'acide carboxylique pour le traitement de textiles et formulation
WO2009013208A1 (fr) * 2007-07-20 2009-01-29 Rhodia Operations Formulations de diesters d'acide carboxylique et leur utilisation pour le traitement de materiaux
CN101503648A (zh) * 2009-02-26 2009-08-12 深圳市合明科技有限公司 一种smt印刷网板的水基清洗剂

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103018385A (zh) * 2012-11-21 2013-04-03 国家皮革质量监督检验中心（浙江） 一种洁厕剂中壬基酚聚氧乙烯醚的气相色谱-质谱检测方法
US9689088B2 (en) 2012-12-18 2017-06-27 Croda International Plc Woolscouring method and composition
CN104101524A (zh) * 2014-07-07 2014-10-15 西北农林科技大学 一种快速提取纯化检测毛样蛋白方法
CN109706007A (zh) * 2018-12-18 2019-05-03 珠海顺泽科技股份有限公司 一种印刷网板清洗液组合物

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