EP2447412A2 - Textiles Produkt zur Entfernung von überschüssigen Farbstoffen aus Waschwasser - Google Patents

Textiles Produkt zur Entfernung von überschüssigen Farbstoffen aus Waschwasser Download PDF

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Publication number
EP2447412A2
EP2447412A2 EP11186854A EP11186854A EP2447412A2 EP 2447412 A2 EP2447412 A2 EP 2447412A2 EP 11186854 A EP11186854 A EP 11186854A EP 11186854 A EP11186854 A EP 11186854A EP 2447412 A2 EP2447412 A2 EP 2447412A2
Authority
EP
European Patent Office
Prior art keywords
substrate
material according
colour
additive
process according
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.)
Withdrawn
Application number
EP11186854A
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English (en)
French (fr)
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EP2447412A3 (de
Inventor
Vittorio Orlandi
Giancarlo Crema
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.)
Orlandi SpA
Original Assignee
Orlandi SpA
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 Orlandi SpA filed Critical Orlandi SpA
Publication of EP2447412A2 publication Critical patent/EP2447412A2/de
Publication of EP2447412A3 publication Critical patent/EP2447412A3/de
Withdrawn legal-status Critical Current

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    • 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
    • D06M15/59—Polyamides; Polyimides
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C11D17/046—Insoluble free body dispenser
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0021—Dye-stain or dye-transfer inhibiting compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3719—Polyamides or polyimides
    • 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
    • D06M13/325—Amines
    • D06M13/342—Amino-carboxylic acids; Betaines; Aminosulfonic acids; Sulfo-betaines
    • 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
    • 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
    • D06M15/55—Epoxy resins
    • 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
    • D06M15/59—Polyamides; Polyimides
    • D06M15/592—Polyamides; Polyimides made from polymerised unsaturated fatty acids and polyamines
    • 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
    • D06M15/667—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing phosphorus in the main chain
    • 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
    • D06P1/52—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 using compositions containing synthetic macromolecular substances
    • D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
    • D06P1/5278—Polyamides; Polyimides; Polylactames; Polyalkyleneimines
    • 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
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/002—Locally enhancing dye affinity of a textile material by chemical means
    • 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
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/22—Effecting variation of dye affinity on textile material by chemical means that react with the fibre

Definitions

  • the present invention relates to a material for eliminating excess colours in washing waters and optionally for the softening of the same, as well as a method for the production thereof.
  • the “hardness” of water is the amount of alkaline-earth metal salts, in particular bicarbonates, and calcium and magnesium sulfates, present in solution in the water, and it is measured in French degrees (°F). Water is defined as “medium hard” if it has a scale content (calcium carbonate) from 150 to 250 mg/l (15-25 0 F), whereas it is considered as “hard” if the scale content is higher than 250 mg/l (from 25 0 F) .
  • an antiscaling agent usually in the form of powder, tablet or liquid, may be added to the detergent, into the same tray.
  • the present invention therefore, provides a material having improved properties, which surprisingly allows totally eliminating the colour present in the washing waters, thus preventing "white” articles from being dyed.
  • the material of the invention may further have a softening action on the water, so as to replace or integrate with the conventional antiscaling additives.
  • the present invention therefore relates to a material comprising a substrate and a suitable additive that adsorbs the colour, thus removing it from the washing waters, as described in the annexed claims.
  • the material will additionally comprise an additive capable of softening the water, according to what is reported in the claims.
  • the substrate may comprise any material compatible with the normal laundry and it may have any shape and dimension such as for example, a tissue or a fabric cloth.
  • the substrate has the shape of a tissue.
  • the substrate is a natural and/or synthetic fabric, a natural and/or synthetic non-woven fabric or paper or felt, for example needled felt.
  • the substrate is a natural and/or synthetic non-woven fabric, more preferably it is a synthetic non-woven fabric.
  • Non-woven fabrics that may conveniently be used are: spunlaced, spunbonded, thermobonded, airlaid or felt.
  • the material of the substrate may be smooth, pierced, embossed or needle-punched.
  • the terms spunlaced, spunbonded, thermobonded, airlaided and needle-punched indicate both non-woven fabrics and the techniques used for obtaining them, well known in the art.
  • the fibres preferably used for obtaining these non-woven fabrics are fibres of: polyester (PE), polypropylene (PP), polylatex (PLA), polyethylensulfone (PES), acrylic polymers, regenerated cellulose, for example lyocell® (that is, regenerated cellulose fibre, obtained by a process of dissolving and spinning in an organic solvent) or tencell® cotton, viscose or mixtures thereof.
  • the substrate is 80% regenerated cellulose, for example: lyocell® or tencell® or viscose.
  • the substrate is 80% regenerated cellulose or viscose, obtained by the spunlace technique, whereas according to a further aspect it is needled felt, 80% regenerated cellulose or viscose.
  • the substrate therefore has the function of "carrier", that is, of support for both the additive that removes the colour and for any water softening additive, when provided.
  • a polyaminoamidic resin with epichlorohydrin is capable of removing the colour released by "coloured” articles from the washing waters, thanks to the high affinity for the dyes.
  • one of the principles at the basis of this invention is that the dye released in the washing waters by "coloured” articles has a much higher affinity for the material of the present invention than for the "white” fabrics present in the laundry.
  • the additive capable of capturing the colour is an aqueous solution of a polyamide cationic resin comprising 15-25% of a copolymer of adipic acid with chloromethyloxirane, diethylenetriamine and epichlorohydrin (CAS 25212-19-5).
  • said additive corresponds to that provided by EIGENMANN & VERONELLI by the name of HERCOSETT 250 LX.
  • the additive that removes the colour may advantageously be prepared in aqueous solution.
  • This solution is especially suitable for the application of the additive with techniques used in the field of dyeing.
  • the substrate preferably has a weight comprised between 50 g/m 2 and 250 g/m 2 , more preferably between 60 g/m 2 and 100 g/m 2 .
  • the weight is preferably comprised between 50-100 g/m 2
  • the substrate is made of felt, this preferably has a weight comprised between 100-250 g/m 2 .
  • the substrate fibres preferably have dimensions comprised between 0.5 dtex and 5 dtex, preferably between 1 dtex and 3 dtex.
  • the additive for sequestering calcium and magnesium ions, and therefore softening the washing waters is a compound comprising a product selected from polyacrylate, polyphosphonate and a salt of EDTA (ethylenediaminetetraacetic acid).
  • the sequestrant for example, is used in an amount designed for leaving a weight on the support comprised between 5 and 100 g/m 2 referred to the dry substrate, preferably between 7 and 50 g/m 2 , more preferably about 10 g/m 2 .
  • the compound also comprises an acrylic or natural polyurethane thickener.
  • the thickener may further be used in amounts comprised between 5% and 100% relative to the amount of sequestrant, preferably between 20% and 80%, more preferably about 50%.
  • amount and specific type of thickener shall be selected by the man skilled in the art according to the type of application, to the machine settings and to the selected substrate.
  • the preferred natural thickener is Guaro flour IDALCA by the company Lamberti Spa.
  • a viscous compounds is obtained, as said, which may preferably be stabilised with a dispersant, for example acrylic-based.
  • a dispersant for example acrylic-based.
  • the amount used of such substance may be comprised between 5% and 50% relative to the amount of sequestrant product, preferably between 7% and 20% and more preferably about 10%.
  • the compound may comprise a substance called "false dye".
  • a substance called "false dye” is a dye defined as “direct blocked”, that is, a substance that colours the substrate but that cannot steadily fix onto any fabric.
  • the "false dye” dissolves in the washing waters without interfering with the laundry or with the product of the invention.
  • the compound having softening properties is substantially colourless.
  • the use of a "false dye” advantageously allows imparting a colour to the softening compound when this is applied (by printing) onto the substrate, which is white coloured, for example for highlighting the logo of the manufacturing company or a fantasy trademark or any other pattern or symbol as desired.
  • the softening compound When the substrate is immersed in the washing waters, the softening compound thus tends to slowly dissolve during the entire washing cycle; at the same time, the surface of the surrounding substrate almost instantaneously takes on a colour due to the effect of the dye scavenger substance. As a result, the non-woven substrate becomes coloured by the effect of the capture of the colour released by the laundry articles in the washing water, with the exception of the points whereon the softening compound has been applied. In fact, the negative pattern/logo pattern will remain at such points.
  • the colour released by the coloured articles is immediately captured by the substrate, which is white and therefore becomes coloured thanks to the dye scavenger substance, whereas the softener, coloured and only applied in some points of the substrate, slowly dissolves leaving the underlying white substrate visible.
  • the softening compound may comprise a binder.
  • the binder is any substance capable of cohesing the substrate of non-woven fabric.
  • the binder allows strengthening the substrate structure to prevent the washing cycles from damaging it.
  • modern washing machines have washing, but above all spinning cycles, that are very strong and therefore they subject the material of the present invention to a great wear. This may cause a quick deterioration of the substrate in general and in particular of a spunlaced substrate, which represents one of the preferred aspects of the invention for versatility, softness, feeling and binding power of the colours.
  • the spunlaced substrate may lint, releasing fibres to the washing water that would attach to the garments, with imaginable consequences.
  • this may be a resin such as for example an acrylic, vinyl, polyurethane resin or a natural resin.
  • the binder may also be a latex, natural or synthetic.
  • the amount of use of the binder (also called bonder) may range from 5% to 100% of the sequestrant product, preferably between 7 and 50% and more preferably it is about 10%.
  • the invention relates to the preparation of a "colour-fast" material having improved properties.
  • the product object of the present invention may be obtained by combining, in any way, one of the substrates listed above with the colour-fast additive of the invention.
  • the preferred finished product comprises the substrate whereto the polyamide cationic resin with epichlorohydrin described above is applied.
  • the material of the invention may also comprise an additive for sequestering the salts of alkaline-earth metals, in particular bicarbonates and calcium and magnesium sulfates, for example polyacrylic, polyphosphonate or a salt of EDTA, having the function of softening the water.
  • an additive for sequestering the salts of alkaline-earth metals in particular bicarbonates and calcium and magnesium sulfates, for example polyacrylic, polyphosphonate or a salt of EDTA, having the function of softening the water.
  • the present invention relates to a process for manufacturing the product object of the invention.
  • Said process comprises the following steps:
  • Steps b), c), d) and f) are preferably carried out through impregnation, spraying, printing and/or plating techniques, which are all techniques known in the art.
  • the colour-fast additive is applied by impregnation.
  • the relation that sets between additive and substrate may be: absorption, adsorption, hydrogen bond, electrostatic forces, for example ion/ion or ion/dipole interactions, chemical or physical bond, etc.
  • the working speeds according to the process of the invention are comprised between 11 and 30 m/min in the case of a substrate of needled felt, whereas if a spunlaced substrate is used, the speeds may be 11-50 m/min.
  • Step e) may be carried out through any method known in the field such as for example impregnation, spreading and printing.
  • the preferred method is printing and in particular, silk-screen printing.
  • a thick mixture is prepared comprising the sequestrant, the thickener and optionally the false dye, as explained above.
  • step e) the thick mixture, prepared for example as described above, may be applied by printing on the substrate coming from the drying step d), preferably by silk-screen printing.
  • the quantity of dense mixture that is applied to the substrate is comprised between 1 and 100 g/m 2 referred to the substrate, preferably between 20 and 80 g/m 2 , even more preferably about 70 g/m 2 .
  • the amount of dense mixture and therefore of sequestrant additive that may be applied to the substrate must be a proper balance between a too low amount, which would have poor activity, and a too high amount which would be very active but would partly interfere with the activity of the colour-fast additive. Different amounts may also be provided according to the hardness level of the water with which the product of the invention is intended to be used.
  • step f) the substrate is dried at a temperature from 40°C and not higher than 110°C, preferably about 100°C.
  • Steps a)-d) are preferably carried out continuously, that is, the substrate is subject to impregnation, squeezing and drying without intermediate steps or stops (optionally for allowing the additive to better bind with the substrate) between each treatment.
  • the additive exhibits a high affinity for the substrate and thus, the desired amount of additive binds almost instantaneously to the substrate and leaving the substrate in impregnation for a long time is not required.
  • the semi-worked substrate may be rolled and moved to another machine where it shall be unrolled and subject to steps e) and f).
  • the semi-worked substrate of step d) is not rolled but immediately sent to printing (step e)), then to drying (step f)) and then, rolled.
  • the manufacturing process may be carried out continuously with a single machine, from step a) to step f), or in "batches” carrying out steps a)-d) with one machine and steps e)-f) with a second machine.
  • the product of the present invention is normally inserted in conventional or professional washing machines prior to starting the washing cycle along with "white” and “coloured” articles.
  • White articles are those articles having white fabrics and/or light coloured fabrics (for example: beige, pink, light blue, grey etc.); preferably, therefore, light coloured fabrics.
  • “Coloured” articles are those articles having dark (for example: red, burgundy, yellow etc.) or very dark (for example: blue, black, dark green, jeans etc.) coloured fabrics. These fabrics may already have been subject to washing in washing machine or not.
  • "coloured” articles denote laundry comprising dark coloured fabrics (for example: red, burgundy, yellow, orange, etc.); more preferably, it denotes dark coloured fabrics already subject to 5 or 6 washings.
  • the thickener dissolves in water releasing the sequestrant and the false dye.
  • the sequestrant dissolved in water thus carries out its function of capturing the calcium and magnesium ions preventing the deposition thereof, such as carbonates and sulfates, on the inner walls of the washing machine.
  • the false dye disperses in the washing water but without dying the garments and is eliminated with the subsequent rinsing along with the sequestrant bound to calcium and magnesium ions. Therefore, the only purpose of the false dye is to make the printed compound visible, as commercial medium and at the same time a system for controlling the operation.
  • the colour-fast additive remains anchored to the substrate and carries out its function having a higher affinity for the pigments present in the washing waters than the affinity existing between the pigments and the fabrics of "white" articles.
  • the material of the invention is inserted in the washing machine along with light coloured fabrics and dark coloured fabrics already washed 5 or 6 times before.
  • the number of sheets of the material of the invention that are used for each washing depends on the laundry weight, on the colours of the articles and on the water hardness.
  • 2 or more sheets of material of the invention are inserted in the washing machine if there are fabrics that lose a large amount of colour, for example cotton fabrics with deep colour hues and in the presence of hard water.
  • the material of the invention withstands the normal washing temperatures and the common detergents and additives, as well as bleach.
  • the combined action of the substrate and of the pigment which both have a high affinity for pigments, allows obtaining a much higher efficiency in retaining the colour present in the washing waters than the products of the prior art.
  • the dual function of "colour-fast” and “scale capture” that the product exhibits according to an optional aspect of the invention is very advantageous.
  • the dual effect of preventing "white” articles from being dyed subsequent to the loss of colour by darker articles, and the deposit of salts onto the articles and within the washing machine is obtained with a single action, preserving the proper operation thereof.
  • the process of the invention is very fast since it may be carried out continuously and has a limited number of steps. This implies a considerable saving of time and energy.
  • the end material is obtained in times in the order of minutes since the "colour-fast" additive binds to the substrate almost instantaneously and it is not necessary to leave it resting for hours to make the additive be absorbed onto the substrate, as in the processes of the prior art. All of this is possible thanks to the use of the "colour-fast" additive of the present invention which exhibits a very high affinity for the substrate and is absorbed in effective amount almost instantaneously.
  • the subsequent printing and drying steps are also very fast.
  • One of the particular preferred combinations, that is, between a needled felt substrate and the colour-fast additive of the invention is the one that has allowed obtaining the best results in terms of resistance to the usage and efficiency conditions.
  • the tests were based on the reading of the difference of ⁇ E of colour of a single-fibre sample cotton fabric (Empa221) and of a multi-fibre fabric (Empa 410), subsequent to a washing in Linitest in the presence of a fading red cloth and of direct dyes (Tiasol Blue and Red + Empa Red).
  • the tests simulate what occurs in the washing bath, using an amount of fabrics and of detergent proportioned to a washing bath of 10 litres (washing step only) in washing machine.
  • the 8-station Linitest, one Minolta spectrophotometer and a two decimal digit technical scale with ⁇ 0.01 g accuracy were used for the tests.
  • the temperature was 40°C using the Omino Bianco Lavatrice Marsiglia detergent.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Gloves (AREA)
  • Detergent Compositions (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
EP11186854A 2010-10-28 2011-10-27 Textiles Produkt zur Entfernung von überschüssigen Farbstoffen aus Waschwasser Withdrawn EP2447412A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT002010A ITMI20102010A1 (it) 2010-10-28 2010-10-28 Prodotto tessile

Publications (2)

Publication Number Publication Date
EP2447412A2 true EP2447412A2 (de) 2012-05-02
EP2447412A3 EP2447412A3 (de) 2012-08-15

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EP11186854A Withdrawn EP2447412A3 (de) 2010-10-28 2011-10-27 Textiles Produkt zur Entfernung von überschüssigen Farbstoffen aus Waschwasser

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EP (1) EP2447412A3 (de)
IT (1) ITMI20102010A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2980196A1 (de) 2014-07-30 2016-02-03 Orsa S.r.l. Mittel zum waschen von wäsche und einfangen von im waschwasser der waschmaschine gelösten farbstoffmolekülen
WO2018083170A1 (en) 2016-11-03 2018-05-11 Basf Se Colorant catcher material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE278758T1 (de) * 1998-08-03 2004-10-15 Procter & Gamble Zusammensetzung zum knitterfestmachen
US6833336B2 (en) * 2000-10-13 2004-12-21 The Procter & Gamble Company Laundering aid for preventing dye transfer
ITVA20060006A1 (it) * 2006-02-01 2007-08-02 Lamberti Spa Tessuto non tessuto cattura-colori e metodo per la sua produzione

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2980196A1 (de) 2014-07-30 2016-02-03 Orsa S.r.l. Mittel zum waschen von wäsche und einfangen von im waschwasser der waschmaschine gelösten farbstoffmolekülen
WO2018083170A1 (en) 2016-11-03 2018-05-11 Basf Se Colorant catcher material

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Publication number Publication date
EP2447412A3 (de) 2012-08-15
ITMI20102010A1 (it) 2012-04-29

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