EP0658224A1 - Procede chimique permettant de conferer a des matieres fibreuses une resistance aux taches. - Google Patents

Procede chimique permettant de conferer a des matieres fibreuses une resistance aux taches.

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Publication number
EP0658224A1
EP0658224A1 EP93920404A EP93920404A EP0658224A1 EP 0658224 A1 EP0658224 A1 EP 0658224A1 EP 93920404 A EP93920404 A EP 93920404A EP 93920404 A EP93920404 A EP 93920404A EP 0658224 A1 EP0658224 A1 EP 0658224A1
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EP
European Patent Office
Prior art keywords
surfactant
percent
wool
fluorochemical
weight
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.)
Granted
Application number
EP93920404A
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German (de)
English (en)
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EP0658224B1 (fr
Inventor
Van Giao Nguyen
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3M Co
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Minnesota Mining and Manufacturing Co
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Publication of EP0658224A1 publication Critical patent/EP0658224A1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
    • D06M13/402—Amides imides, sulfamic acids
    • D06M13/432—Urea, thiourea or derivatives thereof, e.g. biurets; Urea-inclusion compounds; Dicyanamides; Carbodiimides; Guanidines, e.g. dicyandiamides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
    • D06M15/277—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof containing fluorine
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/41—Phenol-aldehyde or phenol-ketone resins
    • D06M15/412—Phenol-aldehyde or phenol-ketone resins sulfonated
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/576—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them containing fluorine
    • 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
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/673—Inorganic compounds
    • D06P1/67333—Salts or hydroxides
    • D06P1/67341—Salts or hydroxides of elements different from the alkaline or alkaline-earth metals or with anions containing those elements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D06M2101/12—Keratin fibres or silk
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions

Definitions

  • This invention relates to a chemical system for providing fibrous materials with stain resistance to common household stains, particularly acid colorants.
  • the system is useful for the treatment of synthetic materials such as nylon, its principal application is in respect of keratinous materials of which wool is of first importance.
  • Keratinous articles such as wool carpets are susceptible to staining by natural and artificial colorants including acid colorants commonly found in many foods and beverages.
  • a need has long been felt for processes for economically providing such keratinous articles with resistance to staining.
  • Particularly desirable are processes by which durable stain resistance can be imparted to keratinous articles during conventional processing and treating operations.
  • the object of this invention is to provide a system for the protective treatment of fibrous materials, particularly wool carpets, such system being reasonably durable through wearing (dryfastness) and wet cleaning (wetfastness) .
  • the present invention provides a chemical system for imparting to fibrous, particularly keratinous materials, such as wool fibers used in carpets, stain resistance to common household stains particularly acid colorants.
  • the method involves first treating the fibrous material with a mordant. After mordant treatment, the fiber is subjected to a bath which includes a surfactant, stain resist chemical, a fluorochemical and, if required, an acid to lower the bath pH. A tip sealing process to enhance the carpet surface protection may also be utilized as a final treatment, if desired.
  • the method of this invention can be applied to undyed fibers or to already dyed fibers. Where it is desired to provide a dyed fibrous product with stain resistance in accordance with the method of this invention, the product may be pre-dyed or the mordant may be incorporated in the bath in which the fiber is dyed. Further, the process of this invention, when incident to the dyeing of fabric, is useful with nonmordant dyes as well as with mordant dyes. The process of this invention is useful with finished fabrics as well as with unfinished fabrics.
  • the process of manufacturing woolen carpets involves the following steps:
  • Wool is cropped from the sheep and is processed in a scouring bath where the wool is cleaned and bleached, the end product being known as wool stock fiber.
  • the stock fiber is blended.
  • the blended stock fiber is carded. 4. The carded wool stock fiber is spun.
  • the spun wool stock fiber is twisted.
  • the twisted wool stock fiber is formed into a hank.
  • the hank is formed into a cone. 8. Tufting is effected. 9. A backing is provided to the tufted wool, thus forming a woolen carpet.
  • the process of this invention may be applied to the fiber at any appropriate stage, e.g., to the original wool stock fiber before it is blended, to the hank of wool before it is coned, or to the tufted wool in which case a continuous dyeing and stain resistant applying process is required.
  • the process of this invention involves the addition to the normal dye bath (which comprises dye and optionally any other suitable auxiliary agents such as mothproofing agents, leveling agents, applied to ensure even distribution of the dye through the fiber, and the like) of a mordant, which is preferably a trivalent mordant such as aluminum sulfate A1 2 (S0 4 ) 3 or aluminum hydroxide Al(OH) 3 or a tetravalent mordant such as zirconium sulfate Zr(S0 4 ) 2 or zirconium hydroxide Zr(OH) 4 .
  • a mordant which is preferably a trivalent mordant such as aluminum sulfate A1 2 (S0 4 ) 3 or aluminum hydroxide Al(OH) 3 or a tetravalent mordant such as zirconium sulfate Zr(S0 4 ) 2 or zirconium hydroxide Zr(OH) 4 .
  • the mordant is included in the dye bath in an amount effective to impart to the fiber greater stain resistance than would be obtained in the absence of the mordant, preferably in a ratio of from 0.5 to 2% by weight relative to the weight of fiber in the bath.
  • the bath temperature can be elevated (e.g.) to 80°-98°C if necessary in order to exhaust the dye into the fabric.
  • the mordant used in the first step of the process of this invention is utilized whether the dye is a mordant or a nonmordant dye.
  • the bath is emptied to remove all dye auxiliaries, that is to say all fluid remaining in the bath after the dyeing process is completed.
  • the bath containing the now dyed fiber is then refilled with cold water in a ratio of 15-100:1 by weight relative to weight of wool.
  • a surfactant preferably an anionic surfactant in an amount effective as a synthetic tanning (syntan) agent and to allow the diffusion of a syntan into the cortex region of the wool fiber, preferably in the ratio of 0.5-1.5% by weight relative to the weight of wool in the bath.
  • a fluorochemical is added to the bath in an amount sufficient to act in concert with a stain resist chemical to provide improved stain resist properties compared with a fabric treated in the same manner absent the fluorochemical, preferably in the ratio of 0.5-1.5% by weight relative to the weight of fiber.
  • a stain resist chemical is added in an amount sufficient to substantially decrease adsorption of staining material and thus minimize the level of usage required to protect the wool fiber, preferably in the ratio of 1.5-5% by weight relative to the weight of fiber.
  • an acid preferably a strong acid, sufficient to lower the pH of the bath to 1.5-3.0.
  • the refilled bath containing the fabric is held at a temperature and for a time sufficient to cause the fabric to absorb an amount of the components of the bath effective to impart stain release properties to the material.
  • the temperature of the refill bath can be raised to 45-75°C and the temperature held at this level for 15-60 minutes.
  • the preferred bath temperature is 60-65°C and the preferred holding time is 20 minutes.
  • a further tip sealing process may, if desired, be implemented.
  • This tip sealing process is applied when the tufted wool is applied to the backing to form a carpet.
  • the tip sealing compound which is preferably in the form of a polymethacrylic resin associated with a surfactant blended fluorochemical, may be applied either by spraying or by foaming.
  • This tip sealing process adds a further protective coating to the surface of the carpet, wool fiber being normally shorn to even height over the length of the carpet. Additional protection is afforded by the tip sealing process against acid colorants, foot staining (as by soil etc.) and particularly coffee stains.
  • the polymethacrylic type resin and the surfactant blended fluorochemical are mixed and added to the carpet surface with 0.25%-1.0% resin by weight and 0.25%-l% surfactant blended fluorochemical by weight relative to the weight of wool fiber.
  • the fluorochemical used in this process adds some lubricant properties to the fiber to which the system is applied.
  • a suitable spinning lubricant which is useful when the wool is spun.
  • the use of the aforesaid fluorochemical in the system of this invention allows reduction in the quantity of that spinning lubricant used to between 40 and 60% of the normal concentration thereof.
  • a spent bath method may be utilized.
  • the spent bath i.e., bath liquid remaining after dyeing is effected
  • the spent bath is cooled to a temperature, and held at that temperature for a specific period, appropriate for stain release properties to be imparted to the material.
  • the spent bath is at 65-75°C, preferably 68-70°C, and is maintained at this temperature for 10 to 40, preferably 30 minutes, and the stain resist chemical added.
  • Acid is then added to adjust the pH of the resultant bath to a level of 2.0 to 2.5.
  • the fluorochemical may be added either after the dyestuff or before the addition of the stain resist chemical.
  • the desired fluorochemical level is 0.3-1.0% by weight of fiber.
  • the process of this invention can be applied at any convenient stage of the manufacturing process, preferably to the stock fiber before the stock fiber is blended or to the fiber in hank form before it is coned.
  • the process of the invention can be applied to keratinous or other fiber after tufting. It is preferred in such an instance to use an embodiment of the invention which provides a continuous rather than a two stage process.
  • the tufted undyed fiber is admitted to a prewetting station and a surfactant, preferably anionic, added in a weight ratio of 0.5 to 4% per weight of surfactant based on the wet-pickup percentage weight of the fiber which is in the order of 80 to 100%.
  • a mordant preferably a trivalent mordant, is added in the weight ratio of from 0.5 to 2% based on the wet-pickup percentage of the fiber.
  • an anionic surfactant from 0.5 to 4% by weight, divalent salt from 0.5 to 2% by weight, an anionic fluorochemical from 0.5 to 2% by weight, a stain resist chemical from 1.5 to 5% by weight and, if necessary, an acid to lower the pH of the solution to 1.5-3.0.
  • the so treated carpet is steamed for 3 to 10 minutes with saturated steam and normal rinsing and extracting follows to a resulting 80-100% wet-pickup of fiber.
  • dye is added contemporaneously with the fluorochemical and the stain resist chemical.
  • the mordant can be any mordant suitable for use with the fiber to which the process of the invention is applied, e.g., those enumerated above and others known to those skilled in the art.
  • the surfactant can be any anionic, cationic, non-ionic, amphoteric or other surfactant suitable for use with the fiber.
  • Anionic surfactants are preferred.
  • Suitable anionic surfactants include: alkyl aryl sulphonated and hydroxyethylated fatty a ine and its derivatives, such as Univadine PS-AU (Ciba-Geigy) ; sodium alkyl diphenyl ether disulphonate, such as Pelex SS-L (Kao Corporation) ; sodium dodecyl diphenyl oxide disulphonate with high sulphur bond (containing ammonium thiosulphate) such as Pelex SS-H; dodecyl (Sulfophenoxy) benzene sulphonic acid, disodium salt; oxybis (dodecylbenzene sulphonic acid) disodium salt such as Rhodacal DSB, Siponate DSB (R
  • ICI dodecyl (sulphophenoxy) benzene sulfonic acid, disodium salt - oxybis (dodecylbenzene sulphonic acid) disodium salts containing at least 1% sodium sulfate and at least 3% sodium chloride, such as Dowfax 2-A1
  • sulphated monoester of fatty acid containing sodium salt such as LANKROPOL WN (Lankro Chemicals) or ammonium salt such as LANKROPOL WA (Lankro Chemicals) or potassium salt such as LANKROPOL OPA (Lankro Chemicals) ; and benzene sulphonic acid, dodecyl (sulphophenoxy) disodium salt, monosodium and didodecyl disulphonated diphenyl oxide such as CALFAX DB-45 (Pilot Chemicals) .
  • sodium salt such as LANKROPOL WN (Lankro Chemicals) or ammonium salt such as LANKROPOL WA (Lankro Chemicals) or potassium salt such as LANKROPOL OPA (Lankro Chemicals)
  • benzene sulphonic acid dodecyl (sulphophenoxy) disodium salt, monosodium and didodecyl disulphonated diphenyl oxide
  • the fluorochemical compositions useful in the present invention include anionic, cationic, or nonionic fluorochemicals such as the fluorochemical allophanates disclosed in U.S. Pat. No. 4,606,737
  • Preferred fluorochemicals include those described in detail in the Examples below.
  • the stain resist chemical can be any such chemical suitable for use with fiber materials, preferably keratinous, including sulfonated phenolic resins and derivatives such as FX-369 (3M) ,
  • the preferred stain release mixture which includes the stain resist chemical and the surfactant is
  • the acid useful in the process is preferably a strong acid, e.g., sulphamic acid, formic acid or sulphuric acid.
  • the spinning lubricant is used at 40-60% of the normal level, (i.e. 40-60% of 0.8-1.2% of dry weight of wool) preferably at 0.4 - 0.6% to provide the dry spin method.
  • the lubricant is selected to have low soiling attraction behavior.
  • Suitable lubricants include Cirrasol ALN-W3 (alkoxylated glycerol and polyethylene glycol) (ICI Chemicals) ; or high humectant version Cirrasol ALN-W6 (ICI Chemicals) ; Crosslube DBS (Polyglycol and phosphate ester) (Crossfield Textile Chemicals) ; or Nopcostat 725-A (Polyethyxylated cetyl oleyl alcohol) .
  • the preferred moisture content added to the wool stock is in the range 14-17% and most preferably 14-15%.
  • the tip sealing compound preferably contains alpha olefin sulphonate and 0.25% - 1.0% owg (on weight of good or percent based upon weight of fiber being 100%) of a poly ethacrylate polymer such as a mixture comprising (a) about 23 parts of a copolymer of methacrylic acid (described as Polymer H of U.S. Pat. No.
  • Pat. No. 4,264,484 (Patel) comprising (i) a fluoroaliphatic radical- and chlorine-containing ester and (ii) a water-insoluble addition polymer using a ratio of ester to addition polymer of about 1.7:2 rather than 1:2 with about 7.1 wt % (based on ester and addition polymer solids) Witconate AOS solids added.
  • An exhaustible fluorochemical will work in concert with the stain resist chemical to provide optimum oil, water and soil repellency in combination with the stain release properties (particularly acid colorant desorption) of the resist chemical.
  • Temperature the rate of diffusion of the said stain resist chemical is particularly efficient in the range of 45-80°C without causing change of shade of the fiber or yarn, and the fluorochemical applied finds ideal condition of exhaustion of the dye into the fibers at temperature above 60°C. This temperature range allows a gentle yet efficient and even exhaustion.
  • pH conditions while high temperature creates a favorable medium for the exhaustion of the chemicals, low pH conditions facilitate their fixation to wool fibers by ionic, hydrogen and covalent bonding. A pH range of 2.0 - 2.5 minimizes the yellowing effect often associated with sulphonated compounds.
  • the tip sealing process is particularly useful to enhance the overall performance of the stain resistance and stain release characteristics on wool carpets, particularly for cut pile carpets. It is novel to use polymethacrylic resin without rinsing without the fear of yellowing. This coupled with a fluoroaliphatic polymer containing a surfactant, facilitates penetration by migration. That the compound as described can be applied by spraying or by foaming is significant.
  • IWS Test Method #282/1991 "Test Method for Assessing the staining propensity of Textiles floor coverings”. This test assesses the staining propensity of specimens of finished wool carpet samples in the "new" and “used” states, i.e. before and after having been subjected to (simulated) foot traffic using FD&C food red staining medium. This test was designed to assess the effect and durability of stain resist finish on wool carpet. A 24 hour stain release rating of #6 on the unworn specimen is satisfactory; #7 rating is considered good and #8 rating is excellent.
  • a 24 hour stain release rating of #3 is satisfactory on worn specimen; of #5 is good and of #7 is excellent.
  • Test Method No. 258/1985 Test Method for assessing the oil and water repellency of textile floor coverings.
  • IWS Test Method No. 267/1991 Test Method for Assessing the Soiling Propensity of Floorcoverings.
  • the test is intended to assess the propensity of wool carpets to soiling using the artificial soil composition.
  • IWS Test Method No. 133/1985 "Colorfastness to Light of Textile Floorcoverings". This method is intended for determining the resistance of the color of wool and wool rich blend textile floor coverings to the action of an artificial light source whose spectrum corresponds closely to that of daylight. This method is based on the ISO 105-302: 1984 Colorfastness to light; Xenon arc. Following ratings are considered satisfactory:
  • Dioctyl sulphosuccinate wetting agent such as Bevaloid 1299 (Rhone Poulenc) .
  • fluorochemical composition comprising a mixture of (a) water-insoluble fluoroaliphatic radical- and aliphatic chlorine-containing ester; (b) water-insoluble fluoroaliphatic radical-containing polymer; and (c) water-insoluble fluoroaliphatic radical-containing compound selected from carbonyli ino compounds and imine compounds described in example 14 of U.S. Patent No. 4,401,780 (Steel) except that component (a) was about 69 Wt. %, component (b) was about 16 Wt. %, and component (c) was about 15 Wt. %.
  • the bath was recirculated for 5 minutes and added
  • No. 4,264,484 (Patel) comprising (a) a fluoroaliphatic radical- and chlorine-containing ester and (b) a water-insoluble addition polymer using a ratio of ester to addition polymer of about 1.7:2 rather than 1:2 with about 7.1 wt % (based on ester and addition polymer solids) Witconate AOS solids added.
  • the sample then was submitted to drying and curing for the same time as a latex backed hessian at a carpet mill.
  • STEP 1 Application of mordant.
  • 70 kg of wool fleece in loose stock form was loaded into a commercial stock dye vat.
  • the liquor ratio was 63:1.
  • the bath then was drained and the vat refilled with cold water.
  • the refill bath had 63:1 liquor ratio. Following chemicals were added:
  • fluorochemical composition comprising a mixture of (a) water-insoluble fluoroaliphatic radical- and aliphatic chlorine-containing ester; (b) water-insoluble fluoroaliphatic radical-containing polymer; and (c) water-insoluble fluoroaliphatic radical-containing compound selected from carbonylimino compounds and imine compounds described in example 14 of U.S. Patent No. 4,401,780 (Steel) except that component (a) was about 69 Wt. %, component (b) was about 16 Wt. %, and component (c) was about 15 Wt. %.
  • the bath was recirculated for 5 minutes and - 1.6 g/L of Sulphamic acid (7 kg) was added to achieve pH 2.4.
  • the temperature was ramped to 65 deg.C over 30 minutes and the bath was held at this temperature for 20 minutes. After this exhaustion procedure, the bath was drained and the stock rinsed as per conventional method.
  • the stock was then dried and blended.
  • the dry spinning process was adopted using 0.5% of spinning lubricant Nopcostat 725-A.
  • the rest of the process was followed to have a tufted carpet.
  • the tufted sample using the provision of the treated stock fiber, was subjected to a topical tip sealing spray treatment to 10% moisture add-on, comprising of following ingredients:
  • polymethacrylic polymer being a mixture comprising about 23 parts (a) a copolymer of methacrylic acid (described as Polymer H of U.S. Pat. No. 4,937,123 (Chang et al) using butyl acrylate instead of ethyl acrylate and the weight ratios being about 78.4 parts methacrylic acid, about 17.6 parts butyl acrylate, about 2 parts sulfated castor oil, and about 2 parts NaOH) ; about 3.4 parts (b) a partially sulfonated novolak resin; about 8 parts (c) (Witconate AOS at 39% solids) ; and about 64 parts water, .
  • a copolymer of methacrylic acid described as Polymer H of U.S. Pat. No. 4,937,123 (Chang et al) using butyl acrylate instead of ethyl acrylate and the weight ratios being about 78.4 parts methacrylic acid,
  • the fluorochemical was a mixture of (a) water insoluble fluoroaliphatic radical and aliphatic chlorine-containing ester; (b) water insoluble fluoroaliphatic radical-containing polymer; and (c) water-insoluble fluoroaliphatic radical-containing compound selected from carbonylimino compounds and imine compounds described in Example 14 of U.S. Patent No. 4,401,780 (steel) except that component (a) was about 69 wt. %, component (b) was about 16 wt. % and component (c) was about 15 wt. %.
  • the dyeing process was performed in the usual manner to the boil (98°C) . After the completion of the dye cycle, the spent bath was cooled to 70°C as per normal process.
  • the combined stain resist and surfactant was added in dilute form to the vat @ 4.5% on weight on wool (45 kg) .
  • the bath was held for 30 minutes then discharged and the stock was rinsed for 10 minutes before discharging.
  • the stock was dried and blended with 0.5% spinning lubricant, Nopcostat 725-A; the moisture content was monitored to 16% at the blending stage to give 14% in the storage room.
  • the stock was carded and spun successfully without special attention.
  • polymethacrylic polymer being a mixture comprising about 23 parts (a) a copolymer of methacrylic acid (described as polymer H of U.S. Pat. No.
  • anionic fluoroaliphatic emulsion being a mixture as described in Example 8 of U.S. Pat. No. 4,264,484 (Patel) comprising (a) a fluoroaliphatic radical - and chlorine-containing ester and (b) a water-insoluble addition polymer using a ratio of ester to addition polymer of about 1.7:2 rather than 1:2 with about 7.1 wt. % (based on ester and addition polymer solids) Witconate AOS solids added.
  • the sample was then submitted to drying and curing at the same time as the latex backed hessian at a carpet mill.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Procédé permettant de conférer une résistance aux taches à des fibres, plus particulièrement de la laine, ledit procédé pouvant s'adapter aux procédés classiques de traitement de la laine. Selon ce procédé: A) on traite les fibres avec un mordant; B) on traite les fibres avec un mélange constitué d'un tensioactif sulfoné ou bisulfoné et d'un agent antitache (du syntan par exemple); et C) on effectue un traitement dans l'étape A ou B selon une quantité suffisante pour améliorer les propriétés antitache. Le procédé amélioré peut être mis en ÷uvre dans la liqueur restant dans un bain de teinture après que les fibres aient été colorées (processus du bain usé). Dans le procédé le pH est acide, de 1,5 à 3,0 %, ceci présentant l'avantage de réduire la proportion d'agent chimique antitache nécessaire pour conférer à la laine une résistance aux taches. La protection des extrémités à l'aide de résine polyméthacrylique et d'un agent fluorochimique peut être une étape supplémentaire.
EP93920404A 1992-09-02 1993-08-27 Procede chimique permettant de conferer a des matieres fibreuses une resistance aux taches Expired - Lifetime EP0658224B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AUPL4465/92 1992-09-02
AUPL446592 1992-09-02
AUPL799693 1993-03-24
AUPL7996/93 1993-03-24
PCT/US1993/008126 WO1994005848A1 (fr) 1992-09-02 1993-08-27 Procede chimique permettant de conferer a des matieres fibreuses une resistance aux taches

Publications (2)

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EP0658224A1 true EP0658224A1 (fr) 1995-06-21
EP0658224B1 EP0658224B1 (fr) 1997-05-21

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EP93920404A Expired - Lifetime EP0658224B1 (fr) 1992-09-02 1993-08-27 Procede chimique permettant de conferer a des matieres fibreuses une resistance aux taches

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EP (1) EP0658224B1 (fr)
JP (1) JPH08500648A (fr)
CA (1) CA2139737A1 (fr)
DE (1) DE69310920T2 (fr)
NZ (1) NZ255913A (fr)
WO (1) WO1994005848A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5520962A (en) * 1995-02-13 1996-05-28 Shaw Industries, Inc. Method and composition for increasing repellency on carpet and carpet yarn
US5948480A (en) * 1997-03-31 1999-09-07 E.I. Du Pont De Nemours And Company Tandem application of soil and stain resists to carpeting
WO2006108240A1 (fr) * 2005-04-14 2006-10-19 Feltex Australia Pty Ltd Procédé de traitement de tapis
JP6252951B2 (ja) * 2015-03-13 2017-12-27 千代田商事株式会社 獣毛製品の製造方法、及びその製造方法により処理された獣毛製品

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2164734C3 (de) * 1971-12-27 1975-01-16 Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt Verfahren zum kontinuierlichen, gleichmäßigen Färben von Baumwollstückware mit anomalen Faseranteflen
FR2398834A1 (fr) * 1977-07-28 1979-02-23 Ugine Kuhlmann Procede de teinture ou d'impression des matieres a base de fibres synthetiques au moyen des colorants de dispersion et compositions tinctoriales utilisables a cet effet
US4808191A (en) * 1987-06-04 1989-02-28 Milliken Research Corporation Process for pattern dyeing of textile materials
CA1327856C (fr) * 1989-09-05 1994-03-15 Barry R. Knowlton Methode permettant d'ameliorer les caracteristiques de resistance aux taches et aux salissures des tissus de laine et de polyamide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9405848A1 *

Also Published As

Publication number Publication date
WO1994005848A1 (fr) 1994-03-17
DE69310920D1 (de) 1997-06-26
CA2139737A1 (fr) 1994-03-17
EP0658224B1 (fr) 1997-05-21
NZ255913A (en) 1996-02-27
JPH08500648A (ja) 1996-01-23
DE69310920T2 (de) 1997-09-04

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