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
  • D06P1/46—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 natural macromolecular substances or derivatives thereof
  • D06P1/48—Derivatives of carbohydrates
• • 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
  • D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
  • D06P1/525—Polymers of unsaturated carboxylic acids or functional derivatives thereof
• • 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
  • Y10S8/921—Cellulose ester or ether
• • 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
• • 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

• Thickeners in textile printing have the primary task of creating the conditions for a dye in the form of a paste to be transferred to a certain limited area of a fiber structure with the aid of mechanical or mechanical devices. In block dyeing, they ensure in an analogous manner that the dye applied as a liquid preparation does not migrate during the drying process and that the flat textile material is leveled.
• a thickening for practical use usually has to meet further requirements.
• the simultaneously desired sharp state of the prints usually requires the use of full-bodied natural thickening when printing on synthetic fiber materials because of the hydrophobic character of the underlying fiber substances - a requirement which in turn makes the transition of the dye from the thickening film into the synthetic fiber more difficult, especially in high-temperature fixing processes the printing pastes used in these cases are still aids in the form of so-called fixing accelerators (such as described in DE-PS 22 50 017) must be added.
• the present invention was based on the object of eliminating the electrolytic sensitivity of synthetic thickeners, which has an adverse effect on the application technology
• the above-described difficulty with regard to the stability of known synthetic thickenings and thus the need for a separate range of nonionically finished disperse dyes can be eliminated if mixtures of the same and highly viscous polysaccharides are used instead of the pure synthetic thickenings , as well as the setting of a certain pH value in the thickening mixtures.
• the present invention thus relates to a process for pad dyeing and printing flat textile material made of synthetic fiber materials with dispersion dyes, characterized in that the pad liquors or printing inks, in addition to the aqueous dye dispersion, also auxiliary combinations of synthetic thickenings containing carboxyl groups and natural thickenings based on polysaccharides, the first % aqueous solutions have a viscosity of 0.05 to 20 Pas, preferably from 2.0 to 4.0 Pas (measured with the help of the Haake Viscotester VT 02), and that the padding liquors or printing inks have a pH of 1.2 to 4.5, preferably 2.0 to 3.5.
• the present invention therefore furthermore relates to an aid for carrying out the process explained above, characterized by a combination of synthetic thickenings containing carboxyl groups and natural thickenings based on polysaccharides, the 1% strength aqueous solutions of which have a viscosity of from O, C5 to 20 Pas.
• the addition of polysaccharides not only stabilized the synthetic thickening but also that the implementation of the new process also resulted in a deepening of color. It was found that the color yields can be increased considerably, ie by 20-90%.
• the pH is adjusted by adding weak to moderately strong inorganic or organic, mono- or polybasic acids or corresponding acid salts. While pure synthetic thickenings when adding such electrolytes drastically reduce their viscosity and usually become water-thin, the above-mentioned mixtures are stable to electrolytes for a long time, that is to say several weeks.
• Another advantage of the thickening mixtures described according to the invention is that the print sharpness, i.e. the contour level, is significantly better than when printing with purely synthetic thickening.
• composition of the new thickening mixtures can vary between 5% of the synthetic thickening and 95% by weight of the polysaccharide and vice versa; it depends on the individual behavior of the products used towards the disperse dyes used. Mixtures with a content of about 30 to 70% by weight of the two components are preferred with regard to the dispersion stability of the dyes.
• the increased color yield resulting from the process according to the invention can also be caused by a reduction in the printing, but cannot be attributed exclusively to this. It is observed both in hot air or high-temperature steam and pressure steam fixation on polyester fiber materials of various origins and types of manufacture as well as on triacetate or on polyamide 472 fiber structures.
• the polysaccharides used according to the invention include natural products, such as high-molecular carob or guar gum flours, as well as starch or cellulose ethers, which may have been degraded and / or etherified.
• the pH values of the printing inks were measured with the "Knick" pH meter, type 160, the viscosities with the Haake Viscotester VT 02 and the color yields with the reflectance spectrophotometer from Bausch and Lomb.
• the percentages relate to the weight.
• the color index numbers were taken from the 2nd edition (1956) and the supplementary volume in 1963.
• the claimed process permits the use of anionically finished disperse dyes in addition to the non-ionically finished disperse dyes, the former were predominantly used in the examples to demonstrate the gain in color yield compared to the process using pure synthetic thickening, which can only be carried out with these dyes.
• the pH of the finished printing ink is 6.3 and the viscosity is 70 d Pas.
• the printed fabric is dried after drying for dye fixation in a high-temperature steamer at 175 ° C. for 7 minutes, then rinsed with water and finally in an aqueous bath with the addition of 1 g / l of a 20-fold ethylated nonylphenol at 90 ° for 10 minutes C 'washed.
• the printing ink has a pH of 3.0 and a viscosity of 17 d Pas.
• fixation and post-treatment are carried out as under a).
• the result is an analog print as under a), but with 42% higher color yield.
• the pH value of the printing ink is 6.4 and the viscosity is 120 d Pas.
• the printed knitted fabric is steamed in the superheated steam at 175 ° C. for 7 minutes and then finished as in example 1.
• the printing ink has a pH of 3.0 and a viscosity of 26 d Pas.
• the splash paint has a pH of 7.3 and a viscosity of 35 d Pas.
• the flattened fabric is dried, steamed for 20 minutes at 1.5 bar top pressure and post-treated like the fabric in Example 1.
• the pH value of the splash paint is 3.3 and the viscosity is 15 d Pas.
• the fabric is fixed and finished as in a). A deep blue color is obtained with 89% higher color yield than under a).
• the pH value of the printing ink is 5.3 and the viscosity is 32 d Pas.
• the printed fabric is heated in hot air at 200 ° C for 1 minute. fixed and post-treated as in Example 1.
• the pH of this printing ink is 3.0 and the viscosity is 69 d Pas.
• the treatment is continued as under a).
• the printing ink has a pH of 4.8 and a viscosity of 37 d Pas.
• the printed fabric is steamed at 1.5 bar gauge pressure for 20 minutes and aftertreated as in Example 1.
• the pH value of the printing ink is 2.6 and the viscosity is 40 d Pas.
• the pH value of the printing ink is 4.3 and the viscosity 42 d Pas.
• the printed fabric is steamed in pressurized steam for 20 minutes at 1.5 bar gauge pressure and then finished as in example 1.
• the pH is 2.6 and the viscosity 22 d Pas.
• the pH value of the printing ink is 5.9 and the viscosity is 32 d Pas.
• the printed fabric is steamed at 1.5 bar gauge pressure for 20 minutes and aftertreated as in Example 1.
• the pH value of the printing ink is 1.8 and the viscosity is 26 d Pas.
• fixation and post-treatment are carried out as under a).
• the printing ink has a pH of 6.6 and a viscosity of 41 d Pas.
• the fabric is steamed in a pressure damper at 1.5 bar overpressure for 20 minutes and then aftertreated as in Example 1.
• the pH value of the printing ink is 3.0 and the viscosity is 48 d Pas.
• the pH value of the printing ink is 6.7 and the viscosity 17 dPas.
• the printed and dried fabric is fixed and post-treated as in Example 1.
• the result is a purple print with good fastness properties.
• the printing ink has a pH of 3.9 and a viscosity of 22 dPas.
• Fixation and post-treatment correspond to a).
• a violet print is also obtained with good fastness properties and a color yield which is 157% higher.
• the pH value of the printing ink is 6.5 and the viscosity is 40 dPas.
• the printed fabric is fixed and post-treated as in Example 1. The result is an orange print with good fastness properties.
• the pH of this printing ink is 3.5 and the viscosity is 15 dPas.
• the printed and dried fabric is fixed and post-treated as in Example 3. A navy blue tone with good fastness properties is obtained.
• the printing ink has a pH of 3.1 and a viscosity of 20 dPas.
• the printing ink has a pH of 8.2 and a viscosity of 65 dPas.
• the printed fabric is fixed and post-treated as in Example 4. The result is an orange print with good fastness properties.
• the pH of this printing ink is 3.6 and the viscosity is 27 dPas.
• Fixation and post-treatment are carried out as under a).
• the same orange print is produced with 136% higher color yield.

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• 1981
  • 1981-12-24 DE DE19813151451 patent/DE3151451A1/de not_active Withdrawn
• 1982
  • 1982-12-21 EP EP82111872A patent/EP0083064A3/fr not_active Withdrawn
  • 1982-12-22 ES ES518458A patent/ES8403177A1/es not_active Expired
  • 1982-12-22 PT PT76024A patent/PT76024B/pt unknown
  • 1982-12-23 JP JP57225110A patent/JPS58115179A/ja active Pending
• 1983
  • 1983-12-29 US US06/566,965 patent/US4502867A/en not_active Expired - Fee Related

Patent Citations (10)

Non-Patent Citations (3)

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