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
  • 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
• • 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
  • D06P1/64—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 without sulfate or sulfonate groups
  • D06P1/642—Compounds containing nitrogen
  • D06P1/6425—Compounds containing hydrazine or azo 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
  • 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
  • D06P1/64—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 without sulfate or sulfonate groups
  • D06P1/642—Compounds containing nitrogen
  • D06P1/647—Nitrogen-containing carboxylic acids or their salts
• • 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
  • D06P5/15—Locally discharging the dyes
  • D06P5/158—Locally discharging the dyes with other compounds
• • G—PHYSICS
  • G05—CONTROLLING; REGULATING
  • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
  • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
  • G05G1/02—Controlling members for hand actuation by linear movement, e.g. push buttons

Definitions

• the indestructible dye causes the textile material to color at the printed areas, in which case colored prints on a dark background are obtained.
• Colored prints on a dark background can, however, also be achieved if the dark etched base is made with a mixture of an etchable and a differently colored non-etchable dye and these two types of dye are brought into a common padding liquor.
• the known etching printing process is therefore modified in such a way that the textile web is first padded with a dye liquor containing disperse dye and dried or dried, but without fixing the dye, ie solution of the dye in the hydrophobic fiber.
• the desired pattern is then printed on the so dried or dried on, padded fabric with the etching printing paste and the padded and printed fabric is then subjected to a heat treatment in which the base dye immerses in the non-printed areas in the polyester fiber, that is, is fixed there, and the dye is destroyed at the areas printed with the etching, ie no coloring takes place there.
• the technique just described is also referred to as etching reserve pressure.
• etching reserve printing which is simple in itself, involves a number of technical difficulties which often make it difficult to use. So it is fundamentally not easy to completely destroy the base dye with the etchant. If this does not succeed, then a colored residue remains on the etched areas, the shade of which can fluctuate between yellow-brown and dull violet or reddish gray tones and which soils the white background at the etched areas. This leads to untidy white etching or in the event that a colored etching should be produced, to falsify the shade of the caustic-resistant dye.
• etching pastes which contain relatively powerful reducing or oxidizing agents, e.g. Sodium dithionite in combination with alkali, alkali formaldehyde sulfoxylates or even heavy metal salts such as tin-2-chloride.
• reducing or oxidizing agents e.g. Sodium dithionite in combination with alkali, alkali formaldehyde sulfoxylates or even heavy metal salts such as tin-2-chloride.
• etching agents e.g. Sodium dithionite in combination with alkali, alkali formaldehyde sulfoxylates or even heavy metal salts such as tin-2-chloride.
• these etchants are usually not cheap, and in the case of heavy metal etchants they also represent an ecological burden or cause additional expenditure in the purification of the waste water.
• dyes that are resistant to etchants on the aforementioned basis, and so the selection of etch-resistant dyes that can be
• disperse dyes for background coloring are required, which can be etched with pure agents that are as mild as possible.
• Disperse dyes are known from German published patent applications DE-A 26 12 740, 26 12 741, 26 12 742, 26 12 790, 26 12 791 and 26 12 792 which have at least two esterified carboxyl groups in their molecule. Such colorants saponify when treated with aqueous alkalis to form corresponding alkali-soluble compounds containing carboxyl groups.
• the known acidic etching printing processes which contain either tin-2-chloride or zinc salts of formaldehyde sulfoxyl acid as oxidative etching agents in the printing pastes, mean, in addition to the disadvantage of the corrosive effect on the fixing units, also the risk of wastewater pollution.
• the present invention also relates to etching reserve means for carrying out the claimed method, characterized in that it contains a mixture of components (a), (b) and (c).
• the mixture component (a) in the etching reserve according to the invention is, for example, 2-, 3- or 4-hydrazino-benzene-carboxylic acid; 2-hydrazino-phenylacetic acid; Hydrazino-naphthalene carboxylic acids; 2-, 3- or 4-hydrazino-benzenesulfonic acid- (5); 4-, 5- or 8-hydrazino-naphthalenesulfonic acid (1); 1- or 6-hydrazino-naphthalenesulfonic acid- (2); 4-hydrazino-toluenesulfonic acid- (2); 2-or 3-hydrazino - benzene-disulfonic acid (1,4) and 4-hydrazino-benzene-disulfonic acid (1,3) as well as corresponding alkali metal or ammonium salts on the acid residue or salts of hydrohalic acids on the hydrazo group.
• the mixture component (a) is used in amounts between 5 and 60 g, preferably between 10 and
• Mixture component (c) serves to neutralize compound (a); therefore the amount of (c) used depends mainly on the amount of the mixture component (a) present.
• the pH of the aqueous solution of these neutralized phenylhydrazine derivatives must be adjusted so that the solutions are transparent and clear in water.
• the aqueous solutions of the 3-component mixture for the etching reserve in the printing paste (i) should expediently have a pH in the range between 6.5 and 8.8.
• Suitable polyalkylene glycols corresponding to component (b) for the etching reserve according to the invention are primarily polyethylene glycols with an average molecular weight of between 300 and 4500.
• the amount of the mixture component (b) required in the printing paste (i) is between 30 and 500 g, preferably between 60 and 200 g, per kilogram of the etching printing paste.
• Suitable textile fabrics in particular woven or knitted fabrics, made of synthetic fibers with a hydrophobic character are, according to the process, all materials which can be dyed by heat-fixable dyes, in particular disperse dyes, especially from fibers of linear aromatic polyesters such as polyethylene terephthalate, furthermore from cellulose triacetate, cellulose 2 1/2 acetate - and polyamide fibers. Textile based on mixtures of these synthetic fibers with fibers of natural origin or other synthetic fibers can also be used.
• the compounds known from this class and suitable for application to the synthetic fibers described above are used from the class of disperse dyes, for example those described in the COLOR INDEX, 3rd edition 1971 and additions in 1975 are listed under the generic name "Disperse Dyes”.
• the selection of the etchable dyes for the claimed process can only be made experimentally due to the mild effect of the etching reserve.
• the range of disperse dyes that can be etched according to the present invention is sufficient and ranges from yellow to blue.
• the process for generating the etching reserves can be carried out in such a way that the undyed textile fabric or knitted fabric is first padded with a dye liquor containing an etchable disperse dye and dried or dried, but no fixation of the dye, i.e. Solution of the dye in the hydrophobic fiber, may take place, and then prints the desired pattern with the etching printing paste on the dried fabric.
• a dye liquor containing an etchable disperse dye i.e. Solution of the dye in the hydrophobic fiber
• a further advantage of the method according to the invention is the possibility of storing the goods printed with the printing pastes containing the etching agent after drying.
• the fund dyes can then be applied in an overlapping manner with a time delay. Equivalent results can be obtained if the application of the fund dyes is carried out by means of a block process and intermediate drying and the application of the printing pastes containing caustic is carried out on other machines with a time delay.
• the fixation of the printed and optionally over-splashed or over-printed goods takes place, as usual, in hot air or superheated steam at temperatures between 160 ° and 220 ° C for 45 seconds to 8 minutes, or in pressurized steam at 1.2 to 1.4 atm for 10 to 30 minutes, preferably 15 to 20 minutes.
• the completion of the fixed prints requires, after rinsing with water, as usual, a reductive aftertreatment as well as a final rinsing and drying.
• yellow and white dot-shaped patterns on a violet background are obtained on the goods from example 1 a), and yellow and white dot-shaped patterns on a red background are obtained on the goods from example 1 b).
• a polyester fabric is printed with the printing paste 1 according to Example 1 d) in any pattern and grafted over this pre-printing wet-on-wet in the same operation a paste of the following composition:
• the process product is then dried as in example 1, fixed and then finished.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Automation & Control Theory (AREA)
• Coloring (AREA)
• Decoration Of Textiles (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6211978

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (1)

Citations (3)

• 1983
  • 1983-10-15 DE DE19833337609 patent/DE3337609A1/de not_active Withdrawn
• 1984
  • 1984-10-06 AT AT84111994T patent/ATE24342T1/de not_active IP Right Cessation
  • 1984-10-06 EP EP84111994A patent/EP0142012B1/fr not_active Expired
  • 1984-10-06 DE DE8484111994T patent/DE3461726D1/de not_active Expired
  • 1984-10-11 ES ES536705A patent/ES8506124A1/es not_active Expired
  • 1984-10-12 JP JP59212815A patent/JPS6099083A/ja active Pending
  • 1984-10-15 KR KR1019840006366A patent/KR850003449A/ko not_active Withdrawn

Patent Citations (3)

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