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
  • D06P1/90—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 dyes dissolved in organic solvents or aqueous emulsions thereof
  • D06P1/92—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 dyes dissolved in organic solvents or aqueous emulsions thereof in organic solvents
  • D06P1/922—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 dyes dissolved in organic solvents or aqueous emulsions thereof in organic solvents hydrocarbons
• • 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
  • D06P1/90—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 dyes dissolved in organic solvents or aqueous emulsions thereof
  • D06P1/92—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 dyes dissolved in organic solvents or aqueous emulsions thereof in organic solvents
  • D06P1/928—Solvents other than hydrocarbons
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
  • Y10S8/92—Synthetic fiber dyeing
  • Y10S8/922—Polyester fiber

Definitions

• the resulting dyeing or print on the fiber material is then fixed by subjecting the treated fiber material ,to a subsequent heat treatment at temperatures from about 130 C. to below the softening point of the fiber material.
• the present invention concerns a process for the continuous dyeing and printing of fibre material from linear, high molecular esters of aromatic polycarboxylic acids with polyfunctional alcohols, the dye liquor used therefor, as well as the fibre material dyed or printed by this process.
• linear, high molecular esters of aromatic polycarboxylic acids with polyfunctional alcohols are dyed with aqueous dyestuff dispersions either from a long bath at the boiling point of the water and in the presence of so-called carriers, or at temperatures of 100 to 150 C. under pressure, or by impregnating with an aqueous, thickened dyestuff dispersion, drying, thermofixing the dyestulf on this material and, finally, washing out the thickener and dispersing agent.
• a process has now been found by which fibre material from linear, high molecular esters of aromatic polycar- 3,510,243 Patented May 5, 1970 boxylic acids with polyfunctional alcohols, particularly polyethylene glycol terephthalate fibres, can be continuously dyed and printed.
• the new process consists in applying to said fibre material a solution comprising a mixture of solvents consisting essentially of (a) 50 to 99 percent by weight of unhalogenated or halogenated hydrocarbon having a boiling point between 50 and 150 C.;
• Suitable hydrocarbons boiling between 50 and 150 C. which can be used as component (a) of mixtures of solvents usable according to the invention are, e.g. aromatic hydrocarbons such as toluene or xylene; preferably however, these mixtures of solvents contain 50 to 99 percent by weight of halogenated, particularly chlorinated, hydrocarbons, e.g. chlorobenzene, mainly however, low aliphatic halogenated hydrocarbons such as chlorinated hydrocarbons, e.g. chloroform, carbon tetrachloride, trior tetra-chloroethylene (perchloroethylene), tetrachloroethane or dibromoethylene. Also mixtures of such solvents can form the water insoluble component of mixtures of solvents usable according to the invention.
• aromatic hydrocarbons such as toluene or xylene
• these mixtures of solvents contain 50 to 99 percent by weight of halogenated, particularly chlorinated, hydrocarbons,
• thermostable solvents which are water soluble not only to fractions of percentages but to some percentages.
• examples thereof are benzyl alcohol, cyclohexanone, cyclohexanol, n. and sec. butyl alcohol or methylethyl ketone.
• Preferred, however, are those solvents as defined which are miscible with water in any ratio.
• monovalent low aliphatic alcohols such as, e.g.
• alkylene glycol monoalkyl ethers such as ethylene glycol monomethyl 0r monoethyl ether; then also furfuryl alcohol or tetrahydrofurfuryl alcohol; or divalent aliphatic alcohols such as ethylene glycol 0r 1,2-propylene glycol; also low aliphatic ketones such as acetone; low cyclic ethers such as dioxane; also amides of low fatty acids such as dimethyl formamide or dimethyl acetamide; then carbonic acid amides, such as tetrarnethyl urea; or tertiary organic amines such as pyridine; as Well as mixtures of such organic solvents.
• alkylene glycol monoalkyl ethers such as ethylene glycol monomethyl 0r monoethyl ether; then also furfuryl alcohol or tetrahydrofurfuryl alcohol
• divalent aliphatic alcohols such as ethylene glycol 0r 1,2-propy
• solvents consist of to 99 percent by weight of chlorinated lower aliphatic hydrocarbon boiling between 50 and C. and of 20 to 1 percent by weight of an organic solvent boiling below 220 C. which is water-miscible in any ratio.
• composition of the mixture of solvents depends on the solubility of the dyestuff or mixture of dyestuffs to be to the invention; for example the dyeings are fast to dry cleaning, perspiration and rubbing.
• homogeneous clear dyestuif solutions are 5 EXAMPLE 1 used.
• Dispersion dyestuffs usable according to the invention of dyestuff 0f the formula can belong to any classes of dyestuffs desired. They are, in particular, metal-free azo dyestuffs, also anthraquinone, 10 nitro, methine, styrene, azostyrene, naphthoperinone, C-H so2- N: 3 quinophthalone or naphthoquinone imine dyestuffs, which I 1 i are free from water solubilising groups which dissociate N02 HiN acid in water.
• the dyestuff solution to be used according to the invention contains 0.1 to 10 percent by Weight of one or more of the dyestuffs mentioned.
• the dye solution usable according to the invention can also contain thickeners, advantageously those which are soluble in the defined mixture of solare ⁇ hssolved In 1000 of a mlXture 0f olvents which vents, e.g. thickeners having a basis of cellulose ester or Cohslsts of 90 Pemeht y Weight of peplanofoethylene and polyvinyl l l or esten 10 percent by weight of methanol.
• the solution is clari-
• the fibre material as defined is impregnated, e.g.
• the fibre material is con- 10w dye sohlhoh
• the lmpreghated fabric is Squeezed out tinuously passed h h h dy stufi l i d to about 100 percent content of solution (calculated on tageously at room temperature, then squeezed out to the the y Weight of the goods) and dfled t 0 t 80 C- desired content of impregnation solution of about to The'impfegnated and dried r c is then thermOfiXed for 150 percent by weight (calculated on the dry weight of 30 3 mlnllies at 220 C.
• i th n ene is replaced by the same amount of toluene or dibrofixed by a subsequent heat treatment on the still moist or 35 moethylene and otherwise the procedure described in this optionally already dried fibre material either by steame a p e 18 followed, then dyeings of similar quality are ing, preferably under pressure at about C., or by a btain ddry heat treatment at a temperature of at least C. If, n the above mix r of v n h perchl rabut below the softening point of the fibre material.
• thermofixing ethylene and methanol are used in a weight ratio of 80:20
• two types of heat treatment can also be combined, but 40 instead of 90:10, then with otherwise the same procedure, the dry heat treatment, the so-called thermofixing, is presimilar results are obtained. ferred.
• alternating currents or infrared irradiation is suitable for the same amount of one of the dyestuffs given in column this purpose; preferably, however, the dyestuif is fixed 2 of the following Table I is used and otherwise the proon the fibre material in a hot airstream at 180 to 230 C., 45 cedure given in the example is followed, then strongly particularly at a temperature of 200 to 220 C. coloured, level and well developed dyeings on polyethyl- Level, strongly coloured and fast dyeings are obtained ene glycol terephthalate are obtained of the shades given on the fibre material mentioned by the process according in column 3 of this table.
• EXAMPLE l8 7 g. of the dyestuff of the formula are dissolved in 1000 g. of a mixture of solvents which consists of 90 percent by weight of chloroform and 10 percent of weight of ethanol and this solution is clarified.
• a polyethylene glycol terephthalate fabric is impregnated with the clear red dye solution and dried as described in Example 1. The impregnated and dried material is then thermofixed for 5 minutes at 190 C.
• a fabric made from polyethylene glycol terephthalate is impregnated with this clear violet solution and dried as described in Example 1 and thermofixing of the impregnated and dried fabric is then performed for 2 minutes at 210 C.
• the dimethyl formamide is replaced by the same amount of ethylene glycol monomethyl or monoethyl ether or by pyridine, then with otherwise the same procedure, similar results are obtained.
• EXAMPLE 21 5 g. of the dyestufl? of the formula CHaOHzOH are dissolved in 1000 g. of a mixture of solvents which consists of 95 percent by weight of perchloroethylene and 5 percent by weight of dimethyl acetamide and the solution is clarified. A polyethylene glycol terephthalate fabric is impregnated with this solution and dried as described in Example 1. The impregnated and dried fabric is then thermofixed at 200 C. for '90 seconds with an apparatus for infrared irradiation.
• a process for the continuous dyeing or printing of fiber material from linear, high molecular esters of aromatic polycarboxylic acids with polyfunctional alcohols comprising:
• dispersion dyestuff is a nitro dyestuif.
• dispersion dyestuff is a styrene dyestuff.
• step (I) said fiber material is impregnated with said non-aqueous solution.
• step (11) said dyeing is fixed by heat treating the impregnated fiber material in dry air at a temperature of from at least 180 C. to a temperature below the softening point of the fiber material.
• said fiber material consists essentially of polyethylene glycol terephthalate fibers.

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• Textile Engineering (AREA)
• Coloring (AREA)

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Cited By (33)

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Citations (3)

• 1965
  • 1965-12-09 CH CH1702465D patent/CH1702465A4/xx unknown
  • 1965-12-09 CH CH1702465A patent/CH503153A/de not_active IP Right Cessation
• 1966
  • 1966-12-01 US US598184A patent/US3510243A/en not_active Expired - Lifetime
  • 1966-12-07 AT AT1130566A patent/AT266764B/de active
  • 1966-12-07 ES ES334302A patent/ES334302A1/es not_active Expired
  • 1966-12-08 GB GB54950/66A patent/GB1127967A/en not_active Expired
  • 1966-12-08 BE BE690893D patent/BE690893A/xx unknown
  • 1966-12-08 NL NL6617267A patent/NL6617267A/xx unknown
  • 1966-12-08 FR FR86640A patent/FR1505677A/fr not_active Expired

Patent Citations (3)

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