EP0286597B1 - Teinture et impression de fibres - Google Patents

Teinture et impression de fibres Download PDF

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Publication number
EP0286597B1
EP0286597B1 EP88810222A EP88810222A EP0286597B1 EP 0286597 B1 EP0286597 B1 EP 0286597B1 EP 88810222 A EP88810222 A EP 88810222A EP 88810222 A EP88810222 A EP 88810222A EP 0286597 B1 EP0286597 B1 EP 0286597B1
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European Patent Office
Prior art keywords
fibres
product
solution
fabric
process according
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EP88810222A
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German (de)
English (en)
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EP0286597A3 (en
EP0286597A2 (fr
Inventor
William Douglas Snider
James Martin Taylor
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Sandoz AG
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Sandoz AG
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Priority to AT88810222T priority Critical patent/ATE89621T1/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
    • 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
    • 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
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose

Definitions

  • This invention relates to the dyeing and printing of textile fibres.
  • European published Patent Application 151,370A describes a process for improving the dyeing properties of textile fibres by pretreating the fibres prior to dyeing with an agent based on the reaction product of an amine with cyanamide, dicyandiamide, guanidine or bisguanidine.
  • This pretreatment agent By using this pretreatment agent and colour yields and wet fastness of the dyed fibres can be improved.
  • the pretreated fibres may be dyed with a variety of anionic dyes including direct and acid dyes, but the use of the pretreatment agent is especially advantageous for reactive dyes as it enables cellulosic fibres to be dyed with reactive dyes under neutral and acid conditions as well as the conventional alkaline conditions. Under acid conditions the dyeing process is more efficient and economical because there is, for example, reduced dye hydrolysis, which allows greater dye uptake, and also a reduction in dyeing time.
  • a method described in EP-A-151,370 for treating the fibres with the pretreatment agent is an exhaust process whereby the textile fibres are immersed in an initially weakly acidic bath which is then heated from room temperature to 50-100°C and made alkaline (pH 9-11) by the addition of 0.5-5 per cent w/wf sodium carbonate. The fibres are subsequently washed to remove any unfixed agent and may then be dyed. According to this process the maximum amount of agent that can be fixed to the fibres is between 0.6 and 2% w/wf, although for most cottons it is no more than 0.9% w/wf.
  • the present invention provides a process for the dyeing or printing of textile fibres which comprises pretreating the fibres before, the dyeing or printing step with a solution of a product [hereinafter referred to as Product (A)] comprising the reaction product of a mono- or polyfunctional amine having one or more primary and/or secondary and/or tertiary amino groups with cyanamide, dicyandiamide, guanidine or bisguanidine, or with a solution of a labile salt of Product (A), characterised in that the temperature of the solution is less than 50°C and the pH of the solution is greater than 11.
  • Product (A) comprising the reaction product of a mono- or polyfunctional amine having one or more primary and/or secondary and/or tertiary amino groups with cyanamide, dicyandiamide, guanidine or bisguanidine, or with a solution of a labile salt of Product (A), characterised in that the temperature of the solution is less than 50°C and the pH of the solution is greater
  • labile salt is meant a salt that dissociates under the pretreatment conditions to generate Product (A) in free base form, examples being the sulphate and phosphate salts.
  • the pH of the solution is preferred to be greater than 12.
  • the required pH value is obtained by the inclusion in the solution of a suitable alkali such as sodium or potassium hydroxide.
  • a suitable alkali such as sodium or potassium hydroxide.
  • caustic alkali is disclosed in the above-mentioned European application EP-A-151,370 although it is stated therein that "excessive alkalinity causes deactivation of the groups available for dyeing, probably as a result of cross-linking of the compound and therefore it is preferred to avoid the use of caustic alkali.”
  • the temperature of the solution is between ambient temperature and less than 50°C, more preferably less than 45°C.
  • this temperature is more preferably between 35 and 45°C and especially about 40°C.
  • ambient temperature is usually used, although where the padding apparatus is capable of being operated at higher temperature, a temperature between ambient and less than 50°C preferably less than 45°C may be used.
  • the amount of Product (A) that is fixed to the fibres depends upon the concentration of alkali in the solution, too little or too much alkali reducing the fixation of the product.
  • the preferred amount in weight of alkali included in the solution is between 0.05x and 0.30x, more preferably between 0.10x and 0.2x, and especially about 0.12x, where x is the amount in weight of Product (A) present in the solution, provided that the concentration of alkali in the solution does not exceed 20g/l. It has been found that if the concentration exceeds this value then the solution becomes unstable.
  • Product (A) is applied in a concentration which allows at least 1.0 per cent by weight of the product to become fixed onto the fibres, based on the dry weight of the fibres. If this material contains fibres which do not take up the product or take it up only minimally, then either these fibres are excluded from the fibre weight in calculating the concentration of the product, or an adjustment is made to account for any compound they take up.
  • Product (A) is applied in concentrations so that at least 2.0 per cent w/wf is fixed to the material, often 2.2 per cent w/wf. Higher levels, for example, 2.5 per cent w/wf or more, can be applied if desired.
  • Preferably Product (A) is distributed evenly over the fibres in order to achieve even dyeing. This requires a sufficient concentration of Product (A) in the aqueous solution. In exhaustion processes too low a concentration of product leads to premature exhaustion of the bath and hence uneven take-up. In continuous processes such as padding too low a concentration of product can lead to a reduction of that concentration during processing; this is known as tailing. This and other factors lead to uneven application.
  • suitable solution concentrations will usually be in the range 1.5 to 20 per cent w/wf, preferably 2.5 to 10%. If, as is preferred, excess Product (A) is applied to the fibres, then the fibres are subsequently washed to remove any unfixed product.
  • Product (A) any suitable method may be used to apply Product (A) to the textile fibres according to the process of the invention, for example exhaustion, padding, spraying, injection, printing or foam application. Exhaustion or padding is preferred. Where padding is used it has been found that a subsequent batching or steaming treatment aids fixation.
  • Preferably Product (A) is the reaction product of dicyandiamide with a polyamine, especially diethylenetriamine.
  • Product (A) may be prepared in its free base form or as a salt and suitable methods are described in GB-A-657,753, US-A-2,649,354 and US-A-4,410,652.
  • the amine, in free base or salt form is reacted with the other starting material in the absence of water at elevated temperatures optionally in the presence of a non-aqueous solvent.
  • the reaction is carried out in the absence of solvent at a temperature of 140-160°C, and for most combinations of reagents, ammonia is evolved.
  • the reagents are preferably reacted in a molar ratio of 0.1 to 1 mole of cyanamide, dicyandiamide, guanidine or bisguanidine per mole of reactive amino groups, and when dicyandiamide is reacted with a polyalkylene polyamine, the molar ratio of the reactants is more preferably from 2:1 to 1:2, particularly about 1:1.
  • the textile fibres which can be pretreated with Product (A) include cellulose fibres by which is meant both natural cellulose such as cotton and regenerated or synthetic cellulose such as viscose or rayon, or a mixture thereof.
  • Cellulose acetate fibres, nitrogen-containing fibres such as polyacrylonitrile and natural or synthetic polyamides such as wool, silk or nylon may also be used.
  • Leather can also be treated.
  • the fibres may be in the form of loose fibres or yarns or fabrics, or in any suitable form.
  • the fibres may be blended with other fibres which are susceptible of treatment by the process of the invention or with fibres which are not so susceptible.
  • cotton and regenerated cellulose fibres may be blended together or individually with polyester fibres, the latter being dyed with disperse dyes, [although when not blended, polyester fibres may be pretreated with Product (A) and then dyed to some extent].
  • Fibre blends and yarn blends may be used.
  • the fibres after pretreatment with Product (A) may be dyed or printed with anionic dyestuffs, including direct dyes, acid dyes and reactive dyes.
  • anionic dyestuffs including direct dyes, acid dyes and reactive dyes.
  • Other dyes that may be used include sulphur, vat, azoic, phthalocyanine, formazan, chrome, di- or triphenylmethane and indigo dyestuffs.
  • the pretreatment according to the invention is especially advantageous where the textile fibres are dyed or printed with reactive dyes and these dyes are applied under acidic or neutral conditions. Because the process enables a relatively high amount of Product (A) to be fixed to the fibres, it is possible to dye fibres with good quality deep and/or dark colour shades such as deep reds, navy blues and blacks. Prior to this invention such fibres and fabrics could only be produced with limited colour depth from neutral or acid systems.
  • Most reactive dyes may be applied under acidic or neutral conditions, generally in the range of pH 3.5 to 7.0, more preferably pH 4.0 to 7.0.
  • the pretreated fibres may also be dyed in alkaline conditions, and in particular it has been found that good lightfastness and brightness can be obtained when the fibres are dyed in a pH range of about pH 8.0 to 9.0.
  • the usual alkaline conditions typically pH 12 to 13 can also be used.
  • Preferred reactive dyes are those containing a 5- or 6-membered heterocyclic ring having aromatic character and containing 2 or 3 nitrogen atoms, which is substituted by 1-3 halogen atoms which can be split off as anions during fixation.
  • the reactive group can also be a vinylsulphonyl-, vinylcarbonyl-, sulphato- or sulphate ester group.
  • Such dyes are known under the designation C.I. Reactive Dyes.
  • Suitable reactive dyes include C.I. Reactive Reds 2, 6, 8, 120, 123 and 171; C.I. Reactive Blues 94, 104, 114, 116, 163, 168, 172 and 193; C.I. Reactive Yellows 7, 84 and 111; C.I. Reactive Oranges 4, 14 and 69; C.I. Reactive Browns 10 and 23; C.I. Reactive Black 8 and C.I. Reactive Violet 33.
  • Other suitable reactive dyes include C.I. Reactive Red 41, C.I. Reactive Yellow 152, C.I. Reactive Red 147, C.I. Reactive Orange 62; or mixtures thereof. Reactive dyes containing more than one type of reactive group in the same dye molecule can also be used.
  • Suitable direct dyes are those having at least two sulphonic acid or sulphonamide groups in the dye molecule, more preferably 3-8 such groups, particularly 4-6. Particularly preferred are highly substantive direct dyes which show a high degree of exhaustion on cotton when dyed by the conventional exhaustion process.
  • the direct dyes Preferably have a molecular weight above 1000, more preferably above 1200.
  • the direct dyes are in the form of 1:1 or 1:2 metal complexes, particularly copper complexes.
  • Particularly suitable direct dyes are those meeting the criteria set out in US-A-4,410,652, the dyes whose formulae are listed in that US patent, and those listed in US-A-4,439,203 under their Colour Index numbers.
  • a further group of particularly suitable dyes has the properties both of direct dyes and of reactive dyes. They are highly substantive as described above, and also contain in their molecule one or more halogens attached to aromatic heterocyclic rings, which can be split off as an anion under alkali fixation conditions. Preferred dyestuffs of this type contain one or two mono- or di-halo (particularly -chloro) substituted triazinyl groups. Examples of such dyestuffs are given in EP-A-151,370.
  • the dye may be applied to the pretreated fibres by any suitable method, for example by exhaustion or padding.
  • the invention has the substantial advantage that the fibres can be dyed continuously, that is to say they can be pad-dyed and then washed and dried without the need for an intermediate fixation step.
  • the process according to the invention also provides particular advantages when used to dye loose fibres, especially loose cellulosic fibres.
  • cellulosic fibres if they are dyed at all, are dyed only to pale shades as deeper, fuller shades can only be obtained by immersing the fibres in a dye bath for a considerable length of time, often in excess of seven hours.
  • the dye time for obtaining full and deep shades can be considerably reduced, for example to 30 minutes, more preferably 10 minutes or less.
  • the loose fibres can be pretreated and dyed by a continuous method, it being neither necessary to dry the fibres after pretreating with Product (A) nor to provide a fixation period after dyeing.
  • the fibres can be pretreated, dyed and washed during the normal washing stages that form part of standard fibre processing.
  • the pretreating, dyeing and washing steps take place in successive baths, the fibres advantageously being squeezed between each bath. Each step need take only 3 minutes or less, although longer times may be taken it desired.
  • it is usual to pretreat and dye cotton fibres after they have been scoured and bleached it is also possible to dye cotton fibres that have been opened and decontaminated from metal particles but are otherwise untreated.
  • Tone-in-tone and colour-and-white differential dyeing effects may be obtained by using cellulosic fibres which have been pretreated according to the process of the invention in combination with untreated cellulosic fibres.
  • 100% cotton fabrics may be knitted or woven in a pattern such as stripes defined by treated and untreated yarns, to give ecru fabric which may be dyed on demand in various colourways.
  • High, medium and low contrast tone-in-tone effects may be achieved using reactive dyes applied under alkaline conditions or mildly acidic conditions. Colour and white effects may be achieved using selected reactive dyes. Dye selection can be used to produce differential dyeing.
  • a further advantage of using direct or reactive dyes is the covering of 'dead' cotton (immature fibres which tend to clump together and are dyed less easily), enabling the usual white specks on the dyed fabric to be eliminated.
  • “miniblends” comprising cotton with small quantities of synthetic fibres such as polyester.
  • a prebleached 100% cotton interlock fabric was immersed in a bath containing an aqueous solution of 8.25 per cent w/wf sulphate salt of reaction product of dicyandiamide and diethylenetriamine. [This salt is hereinafter referred to as "Product (A1)"].
  • Product (A1) This salt is hereinafter referred to as "Product (A1)"].
  • a method for its preparation is given in EP-A-151,370, page 19, Example 1).
  • the liquor to goods ratio was 15:1.
  • the fabric was immersed and agitated in the solution for 5 minutes at ambient temperature and then 4 grams per litre of sodium hydroxide added.
  • the temperature of the bath was increased to 40°C at 2°C per minute and the fabric continued to be treated for a further 20 minutes, after which it was rinsed twice in cold water.
  • the amount of Product (A1) fixed to the cotton was assessed by Kjeldahl nitrogen determination and was found to be 2.08% w/wf.
  • Example 1 was repeated except that the sodium hydroxide was added after the bath temperature had been increased to 40°C. The same amount of Product (A1), 2.08% w/wf, was found to be fixed to the cotton.
  • the general procedure was as follows: a prebleached 100% cotton interlock fabric was immersed for 5 minutes at room temperature in an aqueous solution of x% Product (A1). An amount, y grams per litre, of sodium hydroxide was then added and the cotton immersed with agitation for a further 5 minutes after which the temperature of the solution was raised to z°C and held there for 30 minutes. The fabric was then rinsed in cold water.
  • Samples of prebleached 100% cotton interlock fabric were pad treated by the general technique of padding (using ambient temperature) with a solution containing x g/l Product (A1) and y g/l sodium hydroxide for a time of z minutes, followed by skying or batching.
  • the batching was replaced with a steam treatment for 2 minutes at 102°C.
  • a 100 er cent cotton interlock fabric was pretreated with Product (A1) as described in Example 1.
  • the treated fabric was then dyed with reactive dyes under acidic conditions (pH 6-7) by immersing the fabric at a 15:1 liquor to goods ratio in an aqueous dyebath at room temperature comprising: 80 per cent acetic acid 0.22 ml/l C.I Reactive Blue 193 4.7 per cent C.I. Reactive Red 147 2.0 per cent C.I. Reactive Orange 107 0.12 per cent 50 g/l Glaubers Salt were then added over 15 minutes and the temperature of the dyebath raised to 95°C at 2°C per minute. Dyeing was continued for 30 minutes and the fabric rinsed with water at 40°C for 5 minutes. The dyed fabric was then washed in an aqueous bath containing 2 g/l anionic detergent at 100°C for 15 minutes, rinsed with cold water and dried.
  • a 100 per cent cotton interlock fabric was pretreated with Product (A1) as described in Example 1 except that 2.75 per cent w/wf Product (A1) and 2 g/l sodium hydroxide were used in the aqueous solution.
  • the treated fabric was then dyed with reactive dyes under acidic conditions (pH 6-7).
  • the fabric was immersed in an aqueous dyebath at room temperature containing 0.22 ml/l 80 per cent acetic acid.
  • the liquor to goods ratio was 15:1.
  • 1 g/l of a levelling and anti-precipitant agent, Lyocol ES (tradename) was added followed, after 15 minutes, by the addition over 10 minutes of reactive dyes: 1.5 per cent of the dye C.I Reactive Red 41 and 2.5 percent C.I. Reactive Orange 254.
  • 40 g/l of Glaubers Salt was then added over 15 minutes and the temperature of the bath was raised to 95°C at 2°C per minute. Dyeing was continued for 30 minutes after which the fabric was rinsed with water at 40°C for 5 minutes.
  • the dyed fabric was then washed with an aqueous anionic detergent solution at 100°C for 15 minutes, rinsed with cold water and dried.
  • Cotton fibres were decontaminated, scoured and bleached using conventional methods. The fibres were then washed successively with water in three wash baths, each wash lasting 3 minutes, with squeezing of the fibres between each bath. The liquor to goods ratio was 150:1. The fibres were dried with hot air after centrifuging.
  • the fibres were pretreated with Product (A1) and dyed as follows: To the first wash bath was added 22g/l Product (A1) and 6g/l sodium hydroxide. The temperature of the bath was raised to 40°C and the cotton fibres immersed in the bath with agitation for 3 minutes. 3.3% w/w of Product (A1) was fixed to the fibres.
  • the fibres After passing through a mangle the fibres entered the second wash bath where they were dyed with reactive dyes under acid conditions for 3 minutes at 95°C.
  • the bath contained 0.5g/l acetic acid, 1g/l of an antiprecipitating agent, Lycol ES, and the reactive dyes: 1g/l C.I. Reactive Blue 114 and 0.16g/l C.I. Reactive Red 41.
  • Cotton fibres having a full royal blue shade with good wet and light fastness properties were obtained.
  • Example 6 was repeated except the dyes were changed to produce different coloured cotton fibres.
  • Cotton fibres were opened, decontaminated and formed into a continuous web. They were then scoured and peroxide bleached on a continuous pad steam preparation range, and dried on cans.
  • the continuous web of bleached fibre was then passed through a pad trough at 40°C containing 27.5g/l Lyocol ES.
  • the dwell time of the fibre in the liquor was 15 seconds.
  • the fibre was found to be uniformly treated with 1.8% w/wf of Product (A1) fixed to the fibres.
  • a 100% cotton interlock fabric was pretreated with Product (A1) as described in Example 1A except that 2.75% w/wf Product (A1) and 0.6g/l sodium hydroxide were used in the aqueous solution.
  • the liquor to goods ratio was 20:1.
  • the treated fabric was then dyed with sulphur dyes.
  • the fabric was immersed in an aqueous dyebath at 40°C containing 15g/l sodium sulphide.
  • the liquor to goods ratio was 20:1.
  • the temperature of the dyebath was raised to 85°C at 2°C per minute. Once the bath had reached 85°C, 25g/l common salt was added and dyeing continued for 45 minutes.
  • the dyed fabric was rinsed in cold water and then oxidised by treating in a solution of 3g/l sodium perborate and 1g/l sodium bicarbonate for 30 minutes at 60°C.
  • the dyed fabric was then washed with an aqueous anionic detergent solution at 100°C for 15 minutes, rinsed with cold water and dried.
  • the resultant fabric was dyed to a deep navy shade that was deeper than that obtainable from comparable dyeing on cotton fabric without pretreatment.
  • a 100% woven bleached cotton fabric was pad pretreated in Product (A1).
  • the fabric was padded to 80% pick up in 27.5g/l Product (A1), 1cc/l of a wetting agent Sandozin NI (tradename), 10g/l sodium hydroxide followed by immediate rinsing in cold water and dried.
  • the fabric was found to contain 1.6% w/wf fixed Product (A1).
  • the treated fabric was pad treated at 80% pick up in 2g/l of the dye C.I. Solubilised Vat Blue 6, 2cc/l of a wetting agent Lyogen WL liquid (tradename), 6g/l sodium nitrite.
  • the padded fabric was batched under polythene for 4 hours.
  • the fabric was then padded wet in 20cc/l sulphuric acid, 1g/l of an anionic dispersant Lyocol O (tradename) followed by an immediate rinse in cold water.
  • the fabric was neutralised at 50°C in 1g/l soda ash and then washed off at the boil in alkaline detergent.
  • the resultant fabric was dyed to a blue shade much deeper than a comparable fabric dyed without pretreatment.
  • a 100% cotton interlock fabric was pretreated with Product (A1) as described in Example 1A except that 4.4% w/wf Product (A1) and 0.9g/l sodium hydroxide were used in the aqueous solution.
  • the liquor to goods was 20:1.
  • the treated fabric was then dyed with chrome dyes.
  • the fabric was immersed in an aqueous bath at room temperature containing 1.5% potassium dichromate, 1% formic acid to give a pH of 4.0.
  • the temperature was raised to 98°C and the treatment continued for 30 minutes.
  • the fabric was then rinsed cold for 5 minutes.
  • the fabric was then placed in an aqueous dyebath at 50°C containing 5% sodium sulphate, 0.2% acetic acid (to give pH 5.0) 0.1% of a heavy metal sequestrant Irgalon PA (tradename) and 0.5% of a levelling agent Albegal SET (tradename).
  • the fabric was treated for 5 minutes and 1.5% of the dye C.I. Reactive Red 17 was added.
  • the dyebath was raised to 98°C and dyeing continued for 60 minutes and the fabric finally rinsed at 70°C.
  • the resultant fabric was dyed to a full red shade whereas a comparable dyeing on an untreated substrate remained undyed.
  • a 100% cotton interlock fabric was treated in Product (A1) as described in Example 1A except the concentration of Product (A1) used was 5.5% and the concentration of sodium hydroxide was 2g/l. The liquor to goods ratio was 10:1.
  • the treated fabric was immersed in an aqueous dyebath containing 4% w/wf of the dye C.I. Acid Black 172 at room temperature.
  • the dyebath was raised to 95°C over 30 minutes and 20g/l sodium sulphate was added. The dyeing was continued for a further 30 minutes followed by rinsing at 70°C and in cold water.
  • the resultant fabric was dyed to a full black colour and demonstrated very good wet fastness.
  • a 50% cotton, 50% polyester rib fabric was pretreated with Product (A1) as described in Example 1A except that 4.4% w/wf Product (A1) and 2.7 g/l sodium hydroxide were used in the aqueous solution.
  • the treated fabric was then dyed with reactive dyes and disperse dyes under acidic conditions (pH 5.5 - 6.0).
  • the fabric was immersed in an aqueous dyebath at room temperature containing 1.0g/l buffer pH 5.7.
  • the liquor to goods ratio was 10:1.
  • the temperature of the dyebath was raised to 70°C at 2°C per minute.
  • the dyed fabric was then washed with an aqueous anionic detergent solution at 100°C for 15 minutes, rinsed with cold water and dried.
  • a 100% acrylic ('Courtelle' - tradename) fabric was pad treated with Product (A1).
  • the fabric was padded with 40g/l Product (A1), 20g/l sodium hydroxide to 80% pick up, batched under polythene for 4 hours, rinsed in cold water and dried.
  • the treated fabric was then dyed with reactive dyes.
  • the fabric was immersed in an aqueous dyebath at room temperature containing 0.22cc/l 80% acetic acid. The liquor to goods ratio was 15:1. After 5 minutes 3% of the dye C.I. Reactive Blue 114 was added. The dyebath temperature was then raised to 95°C and the dyeing continued for 30 minutes. The dyed fabric was then rinsed in hot and cold water followed by drying.
  • a prebleached 100% cotton interlock was immersed in a bath containing an aqueous solution of 8.25 per cent Product (A1).
  • the liquor to goods ratio was 10:1.
  • the fabric was immersed and agitated in the solution for 5 minutes at ambient temperature.
  • the temperature of the bath was increased to 40°C at 2°C per minute and then 4 grams per litre of potassium hydroxide added.
  • the fabric continued to be treated for a further 20 minutes, after which it was rinsed twice in cold water.
  • the amount of Product (A1) fixed to the cotton was assessed by Kjeldhal nitrogen determination and was found to be 2.14% w/wf.

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

Claims (9)

  1. Un procédé de teinture ou d'impression de fibres textiles, qui comprend le pré-traitement des fibres avant l'étape de teinture ou d'impression avec une solution d'un Produit (A) comprenant le produit de réaction d'une amine mono- ou polyfonctionnelle ayant un ou plusieurs groupes amino primaires et/ou secondaires et/ou tertiaires avec le cyanamide, le dicyandiamide, la guanidine ou la bisguanidine, ou avec une solution d'un sel labile dudit Produit (A), caractérisé en ce que la température de la solution est inférieure à 50°C et que le pH de la solution est supérieur à 11.
  2. Un procédé selon la revendication 1, dans lequel la valeur du pH est obtenue par l'inclusion dans la solution d'hydroxyde de sodium ou de potassium en une quantité comprise entre 0,05 x et 0,30 x où x signifie la quantité en poids dudit Produit (A) ou d'un sel labile de ce composé présent dans la solution, la concentration en hydroxyde de sodium ou de potassium dans la solution ne devant pas dépasser 20 g/litre.
  3. Un procédé selon la revendication 1 ou 2, dans lequel les fibres sont pré-traitées selon le procédé par épuisement et la température de la solution est comprise entre 35 et 45°C.
  4. Un procédé selon la revendication 1 ou 2, dans lequel les fibres sont pré-traitées selon le procédé par foulardage et la température de la solution est la température ambiante.
  5. Un procédé selon l'une quelconque des revendications précédentes, dans lequel la quantité dudit Produit (A) ou du sel labile de ce composé présente dans la solution est d'au moins 1,5% en poids par rapport au poids de la matière à traiter.
  6. Un procédé selon l'une quelconque des revendications précédentes, dans lequel ledit Produit (A) est le produit de réaction de la diéthylènetriamine avec le dicyandiamide.
  7. Un procédé selon l'une quelconque des revendications précédentes, dans lequel les fibres après avoir été pré-traitées sont teintes avec un colorant réactif sous des conditions acides ou neutres.
  8. Un procédé selon la revendication 1 ou 2 pour la teinture de fibres cellulosiques en bourre, qui comprend les étapes successives:
    (a) de pré-traitement des fibres en les faisant passer à travers un bain contenant une solution d'un Produit (A) ou une solution d'un sel labile dudit produit (A), le pH de la solution étant supérieur à 11 et la température du bain étant inférieure à 50°C,
    (b) de passage des fibres à travers un bain contenant un bain de teinture destiné à teindre les fibres,
    (c) de lavage des fibres,
    (d) de séchage des fibres.
  9. Un procédé selon la revendication 8, dans lequel les étapes (a) à (c) sont effectuées en un espace de temps inférieur à 30 minutes.
EP88810222A 1987-04-06 1988-04-05 Teinture et impression de fibres Expired - Lifetime EP0286597B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810222T ATE89621T1 (de) 1987-04-06 1988-04-05 Faerben und bedrucken von fasern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8708192 1987-04-06
GB878708192A GB8708192D0 (en) 1987-04-06 1987-04-06 Dyeing & printing fibres

Publications (3)

Publication Number Publication Date
EP0286597A2 EP0286597A2 (fr) 1988-10-12
EP0286597A3 EP0286597A3 (en) 1989-11-23
EP0286597B1 true EP0286597B1 (fr) 1993-05-19

Family

ID=10615320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810222A Expired - Lifetime EP0286597B1 (fr) 1987-04-06 1988-04-05 Teinture et impression de fibres

Country Status (10)

Country Link
EP (1) EP0286597B1 (fr)
JP (1) JPS63256777A (fr)
KR (1) KR880012833A (fr)
AT (1) ATE89621T1 (fr)
AU (1) AU609460B2 (fr)
DE (1) DE3881095T2 (fr)
ES (1) ES2041830T3 (fr)
GB (1) GB8708192D0 (fr)
HK (1) HK49596A (fr)
ZA (1) ZA882383B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8909627D0 (en) * 1989-04-27 1989-06-14 Courtaulds Plc Fibrous material
DE4422707A1 (de) * 1994-06-29 1996-01-04 Hoechst Ag Verfahren zum Färben aminierter Cellulose-/Polyester-Mischgewebe mit faserreaktiven Dispersionsfarbstoffen
US6197880B1 (en) 1998-04-22 2001-03-06 Sri International Method and composition for coating pre-sized paper using azetidinium and/or guanidine polymers
JP2002512314A (ja) * 1998-04-22 2002-04-23 エスアールアイ インターナショナル アゼチジニウムおよび／またはグアニジンポリマーを使用する、基体上に印刷された画像の質を向上させるための基体の処理
US6686054B2 (en) 1998-04-22 2004-02-03 Sri International Method and composition for the sizing of paper using azetidinium and/or guanidine polymers
US6291023B1 (en) 1998-04-22 2001-09-18 Sri International Method and composition for textile printing

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH386983A (de) * 1963-04-25 1964-09-30 Sandoz Ag Verfahren zum Färben, Klotzen oder Bedrucken von Textilmaterial aus Cellulose mit wasserlöslichen Reaktivfarbstoffen
NL187688C (nl) * 1980-02-22 1991-12-16 Sandoz Ag In water oplosbaar produkt, werkwijze voor het bereiden van een preparaat voor het behandelen van textielmaterialen en werkwijze voor het verbeteren van de natte echtheidseigenschappen van een kleurstof.
CH669705GA3 (fr) * 1982-08-30 1989-04-14
EP0151370B1 (fr) * 1984-01-03 1990-03-14 Sandoz Ag Teinture et impression de fibres

Also Published As

Publication number Publication date
ES2041830T3 (es) 1993-12-01
DE3881095T2 (de) 1993-12-02
DE3881095D1 (de) 1993-06-24
ATE89621T1 (de) 1993-06-15
ZA882383B (en) 1989-12-27
AU1415288A (en) 1988-10-06
GB8708192D0 (en) 1987-05-13
HK49596A (en) 1996-03-29
EP0286597A3 (en) 1989-11-23
AU609460B2 (en) 1991-05-02
KR880012833A (ko) 1988-11-29
JPS63256777A (ja) 1988-10-24
EP0286597A2 (fr) 1988-10-12

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