Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
  • D06P3/58—Material containing hydroxyl groups
  • D06P3/60—Natural or regenerated cellulose
  • D06P3/6033—Natural or regenerated cellulose using dispersed dyes
• • 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
  • D06P5/003—Transfer printing
  • D06P5/004—Transfer printing using subliming dyes
  • D06P5/005—Transfer printing using subliming dyes on resin-treated fibres

Definitions

• the invention relates to a method for combined dyeing and / or printing and finishing of textile fabrics made entirely or partially of cellulose fibers.
• the carrier is preferably a carrier paper which is provided with the dyes and placed on the textile, the dyes being sublimed by means of a heated press or a calender and being deposited on the textile.
• these transfer printing dyes show no or only a reduced affinity, so that when transfer printing is used on these fabrics, prints or dyeings of completely inadequate color depth are obtained.
• reactant resins are primarily mentioned as crosslinking agents for the cellulose, i.e. Products that do not form resins in the conventional sense, but react with the hydroxyl groups of cellulose to form bridges.
• the catalyst is applied either by applying the catalyst solution to the goods pretreated with the crosslinking agent after the transfer, followed by drying and condensation of the goods, or the catalyst can be added to the finishing liquor, the condensation after drying the Goods in the frame the transfer printing takes place.
• cellulose fiber and cellulose fiber blended fabrics are impregnated in the water-moist state with products which are simultaneously solvents for the transfer dyes and crosslinking agents for the cellulose.
• Bifunctional or polyfunctional methylolated and etherified ureas - or melamine derivatives and carbamates which are used together or separately with metal or ammonium salts of volatile acids as catalysts, are mentioned as solvents for the disperse dyes and as crosslinking agents for the cellulose.
• the catalyst can either be contained in the finishing liquor, be on an auxiliary carrier, or can be sprayed onto the fabric after the transfer printing, in which case the goods must be condensed after drying.
• British Patent 1 445 2ol describes a process for transfer printing textiles from natural fibers or blends with synthetic fibers.
• the substrate is then treated in aqueous solution or in organic solvent with an alkylated melamine-formaldehyde resin in the presence of a catalyst and then subjected to transfer printing, the resin being condensed as part of the transfer printing. It should also be possible to print the textile material first and then to carry out the treatment with the alkylated melamine-formaldehyde resin.
• the present invention is based on the main object to modify cellulose and cellulose-containing blended fabrics so that they have such good affinity for sublimable dyes according to synthetic fiber materials that color depth and color brilliance are optimal and the dyeings or prints created by transfer printing are very good possess good fastness to light, washing and dry cleaning.
• This task is carried out in a process for combined dyeing and / or printing and finishing Solved entirely or partially of cellulosic textile fabrics according to the generic term according to the invention mentioned at the outset by applying a modified melamine-formaldehyde condensation product or a modified melamine-carbamide-formaldehyde condensation product to the textile fabric in the first stage, then dries, then dyes or carries out the printing and then, in a second stage, the textile fabric is impregnated with the aqueous liquor of a crosslinking agent which contains an acidic or latently acidic catalyst, followed by drying and condensing.
• a crosslinking agent which contains an acidic or latently acidic catalyst
• the printing is carried out as transfer printing.
• the impregnation is effected by padding.
• the impregnation is effected by spraying on.
• a further preferred embodiment of the process according to the invention is characterized in that the modified melamine-formaldehyde Condensation product a condensation product reacted with ethylated fatty acid amine and / or fatty acid amine derivative and / or a polyalkylene glycol and / or polyalkylene glycol derivative is used.
• a further preferred embodiment of the process according to the invention is characterized in that the transfer printing is carried out at 16 ° -24 ° C.
• the modified melamine resin increases the affinity of the sublimable dyes for cellulose fibers so that depth and brilliance of the color are comparable or equivalent to those of a printed polyester fabric
• the dyes are fixed by the treatment in the second stage, so that prints with very good Light, washing and dry cleaning fastness can be obtained.
• the creasing properties of cellulose are improved.
• the effect height / strength ratio is controllable and manageable and does not depend on the dyeing or printing process, while before applying the catalyst together with the crosslinking agent printing or via an auxiliary carrier during transfer printing according to the prior art for the crease recovery capacity and the strength properties of the goods, the temperature of the plate press or calender used in printing and the exposure time can be disadvantageous.
• the modified formaldehyde condensation product which improves the dye uptake of cellulose or cellulose-containing blended fabrics can be a melamine-formaldehyde or melamine-carbamide-formaldehyde condensation product - preferably 3-6 mol of formaldehyde per mol of melamine being used, which is 0.05 0.2 mol of fatty acid amine and / or fatty acid amine derivative polyglycol ether and / or 0.1-4 mol of polyalkylene glycol is reacted.
• Primary or secondary fatty acid amines or a quaternary fatty ammonium salt with 8-220 moles of ethylene oxide can be used as the fatty acid amine or fatty acid amine derivative, at least 1 alkyl radical preferably containing 8-16 carbon atoms.
• Reactant resins based on glyoxalmonourein, ethylene urea, propylene urea or carbamates are suitable as crosslinking and fixing agents; self-crosslinking resins such as reaction products of urea with formaldehyde or resin-free compounds, e.g. Acetals produced by the reaction of formaldehyde with low molecular weight alcohols can be used. All of these products can be used alone or in combination.
• the catalysts required for the crosslinking reaction can be metal or ammonium salts of inorganic acids.
• a cotton cretone fabric with a square meter weight of 112 g is equipped with an aqueous liquor which contains 100 g / l hexamethylolmelamine reacted with a quaternary laurylammonium salt with 10 mol ethylene oxide and with polyethylene glycol with a molecular weight of 1500.
• the printed fabric After drying of the goods to 9o ° C to laying on the fabric a printed carrier paper with the print side to the tissue, and performs the transfer printing onto a platen press at 24o ° C for 3 0 seconds.
• the printed fabric which has a very good depth of color, comes with an aqueous liquor per liter Contains 150 g of crosslinking agent based on a modified glyoxal monourein and 15 g of MgCl 2 .6 H 2 0,
• the print produced shows excellent brilliance and very good fastness properties and the technological properties of a velor fabric are fully met.
• a cellulose satin fabric (square meter weight approx. 120 g) is reacted with an aqueous liquor containing 110 g / l methylolmelamine, reacted with quaternary cocosamine with 15 mol ethylene oxide and polypropylene glycol with a molecular weight of 4,000 .
• the finishing in the second stage is carried out with an aqueous liquor containing 200 g / l partially etherified dimethylolurea 4 g / l ammonium chloride 15 g / l plasticizer based on a fatty acid condensation product.
• a polyester / cotton blend 5 0 : 5 0 (square meter weight 100 g) is impregnated with an aqueous liquor which contains 75 g / l melamine-formaldehyde condensation product, reacted with tallow fatty amine ethyl acetate with 15 mol ethylene oxide and polypropylene glycol with a molecular weight of looo .
• the fabric is dried at 100 ° C.
• the fabric is printed on a plate press at 200 ° C within 30 seconds.
• An aqueous liquor is then used to fix the pressure and to improve the crease recovery capacity
• the finished goods are dried at 100 ° C and condensed at 15 0 ° C for 3 minutes.
• the end products created according to Examples 1-4 above are characterized by very good depth of color and color brilliance, as well as by very good fastness to light, washing and dry cleaning.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

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Family Applications (1)

Country Status (2)

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Citations (4)

• 1979
  • 1979-06-30 DE DE19792926512 patent/DE2926512A1/de not_active Withdrawn
• 1980
  • 1980-06-14 EP EP19800103338 patent/EP0021300A1/fr not_active Withdrawn

Patent Citations (4)

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