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
  • D06P3/02—Material containing basic nitrogen
  • D06P3/04—Material containing basic nitrogen containing amide groups
• • 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
  • D06P5/12—Reserving parts of the material before dyeing or printing ; Locally decreasing dye affinity 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
  • 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
  • D06P1/62—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 low-molecular-weight organic compounds with sulfate, sulfonate, sulfenic or sulfinic groups
  • D06P1/628—Compounds containing nitrogen
• • 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
  • Y10S8/916—Natural fiber dyeing
  • Y10S8/917—Wool or silk
• • 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
  • Y10S8/924—Polyamide fiber

Definitions

• the amount of the melamine compound depends in particular on the amount of dye used and the desired reserve or colored print, an amount of 50 to 150 g per liter of reserve preparation having proven to be advantageous.
• the melamine compound advantageously contains 1 to 4, preferably 2 to 3 acidic water-solubilizing groups, which can in particular be carboxyl or sulfonic acid groups.
• a melamine compound can contain only carboxyl groups or only sulfonic acid groups as well as both carboxyl and sulfo groups.
• R1, R2 and R3 may be the same or different.
• R1, R2 and R3 each represent phenyl.
• the melamine compounds used in the process according to the invention are known per se or can be prepared by methods known per se.
• the melamine compounds used in the process according to the invention are either in the form of the free acid or preferably as their salts.
• suitable salts are the alkali metal, alkaline earth metal or ammonium salts or the salts of an organic amine.
• Examples include the sodium, potassium or ammonium salts or the salt of triethanolamine.
• anionic dyes used for the process according to the invention are known from the Color Index. Basically all anionic dyes are suitable.
• the anionic dyes are, for example, salts of heavy metal-containing or metal-free mono-, dis- or polyazo dyes including the formazan dyes and the anthraquinone, xanthene, nitro, triphenylmethane, naphthoquinoneimine and phthalocyanine dyes.
• the anionic character of these dyes can be caused by metal complex formation alone and / or preferably by acidic, salt-forming substituents, such as carboxylic acid groups, sulfuric acid and phosphophonic acid ester groups, phosphonic acid groups or sulfonic acid groups.
• These dyes can also have so-called reactive groups in the molecule, which form a covalent bond with the material to be colored. Acidic, metal-free dyes or reactive dyes which have a single sulfonic acid group and which preferably have at least two sulfonic acid groups are preferred.
• the 1: 1 metal complex dyes preferably have one or two sulfonic acid groups. As metal, they contain a heavy metal atom, such as copper, nickel or, in particular, chromium.
• the 1: 2 metal complex dyes contain a heavy metal atom as the central atom, such as a cobalt atom or in particular a chromium atom.
• Two complex-forming components are connected to the central atom, at least one of which is a dye molecule, but preferably both are dye molecules. The two dye molecules involved in the complex formation can be the same or different from one another.
• the 1: 2 metal complex dyes can, for example, two azomethine molecules, one Disazo dye and a monoazo dye or preferably contain two monoazo dye molecules.
• the azo dye molecules can have water-solubilizing groups such as acid amide, alkylsulfonyl or the above acidic groups. Preference is given to 1: 2 cobalt or 1: 2 chromium complexes of monoazo dyes which have acid amide groups, alkylsulfonyl groups or a total of a single sulfonic acid group.
• anionic dyes can also be used.
• dye mixtures of at least 2 or 3 anionic dyes can be used.
• the amount of dyes used depends on the desired depth of color of the reserve and color printing. In general, amounts of 0.02 to 10 percent by weight, in particular 0.05 to 5 percent by weight, based on the fiber material used, have proven successful.
• anionic optical brighteners can also be used.
• synthetic polyamide silk or especially wool alone or mixtures of wool and polyamide are to be mentioned.
• the synthetic polyamide comes e.g. that from adipic acid and hexamethylenediamine (polyamide 6,6), from ⁇ -caprolactam (polyamide 6), from ⁇ -aminoundecanoic acid (polyamide 11), from ⁇ -aminoonanthic acid (polyamide 7), from ⁇ -amino-pelargonic acid (polyamide 8) or from sebacic acid and hexamethylenediamine (polyamide 6.10).
• the fiber materials are flat, especially floor coverings, such as Carpet or other home textiles such as upholstery fabrics, curtains or wall coverings.
• Both the preparations for topical application of the reservation agent alone or in combination with the dye or optical brightener and the dyeing liquors for overdyeing advantageously contain mineral acids, such as sulfuric acid or phosphoric acid, or organic acids, such as formic acid, acetic acid, oxalic acid or preferably citric acid . You can also use salts like Contain ammonium acetate, ammonium sulfate or sodium acetate. The acids are used primarily to adjust the pH of the preparations or liquors, which is usually 3 to 7, preferably 3.5 to 4.5.
• the dyes or optical brighteners In addition to the melamine compounds (reservation agents), the dyes or optical brighteners, other auxiliaries customary in dyeing technology can also be used. They are e.g. Dispersing agents, leveling agents, electrolytes, wetting agents, defoamers, anti-foaming agents, thickeners or wool protection agents.
• the reserve print or the local coloration is done according to the usual methods for printing. They can be done using drops, pressure rollers or stencils. This local application can be carried out on dry or pre-wetted goods. It is advantageous to use real dyes such as reactive and / or metal complex dyes for the local coloring.
• the heat treatment after the reservation or local coloring is usually carried out with saturated steam at 100-105 ° C or hot air at 120-160 ° C for pre-fixing and generally takes 5 to 20 minutes, preferably 7 to 15 minutes when using saturated steam and 60 to 120 seconds with hot air. After this pre-fixation, the over-staining takes place to produce the background staining.
• the dyeing is preferably carried out using acid dyes, which generally have migration properties.
• the background coloring can be produced by the exhaust process, impregnation process, continuously or semi-continuously, or also by printing.
• the impregnation can be applied e.g. Spray, splash or pour the dye liquor.
• the liquor ratio can be selected within a wide range, for example 1: 3 to 1: 100, preferably 1:10 to 1:40. It is convenient to work at a temperature of 30 to 98 ° C, preferably 50 to 70 ° C.
• the liquor application is expediently 250 to 800% by weight.
• the goods are then subjected to a second heat treatment process in order to fix the applied dyes. This fixation can also be carried out using the cold dwell method.
• the heat treatment is preferably carried out by a steaming process with treatment in a steamer with possibly superheated steam at a temperature of 98 to 105 ° C.
• the dyes can be fixed in accordance with the cold residence process by storing the impregnated and preferably rolled-up goods at room temperature (15 to 30 ° C) e.g. during 3 to 24 hours, the cold residence time being known to depend on the dye.
• the dyeings produced are washed and dried in the customary manner.
• the process according to the invention enables fiber material of the same quality to be dyed in a simple manner in different shades of color, which is of great importance particularly in the production of carpets because carpets can be produced which show a balanced picture with regard to the stability and gloss of the pile.
• the process is also economical because there is usually no need for intermediate washing and / or drying and expensive storage of large quantities of pre-colored material.
• a wool cut pile carpet which is locally printed as described in Example 2 (a), is impregnated on a fleet applicator with a fleet application of 400% with an aqueous dye liquor which contains 0.12 g of a dye of the formula (101) in liters. 0.045 g of a dye of the formula (102), 0.085 g of a dye of the formula (103), 1 g of the mixture of coconut fatty acid diethanolamide and the ammonium salt of the acid sulfuric acid ester of the adduct of 3 moles of ethylene oxide and 1 mole of lauryl alcohol (1: 1.7) and Contains 2 g locust bean gum thickener (commercially available) and adjusted to pH 4 with citric acid. The goods are then steamed for 10 minutes with saturated steam at 100 ° C. The pattern shows a yellow tone on a beige basic tone in the printed areas.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Coloring (AREA)

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• 1988
  • 1988-07-19 EP EP88810495A patent/EP0302013A1/de not_active Withdrawn
  • 1988-07-19 US US07/221,401 patent/US4859207A/en not_active Expired - Fee Related
  • 1988-07-25 NZ NZ225548A patent/NZ225548A/xx unknown
  • 1988-07-26 AU AU20016/88A patent/AU602783B2/en not_active Ceased
  • 1988-07-26 KR KR1019880009382A patent/KR890002488A/ko not_active Application Discontinuation
  • 1988-07-27 JP JP63185703A patent/JPS6445882A/ja active Granted

Patent Citations (5)

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