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
  • D06P1/52—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
  • D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
  • D06P1/5271—Polyesters; Polycarbonates; Alkyd resins
• • 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
  • D06P5/02—After-treatment
  • D06P5/04—After-treatment with organic compounds
  • D06P5/08—After-treatment with organic compounds macromolecular

Definitions

• the object of the present invention is to improve the rub resistance of dyes or prints produced on articles made of natural or synthetic fibers with different classes of dyes.
• melamine-based resin is also effective only in the case of pigments but is in no case effective with other classes of dyes such as reactive or sulfur dyes.
• the invention aims to satisfy this need.
• an agent obtained by dissolving a small amount of polyacrylamide in an aqueous solution of cationic amino resin makes it possible to significantly improve the resistance to friction not only of pigments, but also that of various other dyes such as reactive dyes, with sulfur, direct or derived from naphthol, applied in dyeing or printing on textile articles made of natural or synthetic fibers.
• the invention aims to provide an agent for improving the friction resistance of dyes or prints produced on textile articles made of natural or synthetic fibers, characterized in that it comprises the product obtained by dissolving (a ) polyacrylamide in an aqueous solution of (b) a cationic amino resin.
• the invention also relates to a method of improving the rub resistance to dyes or prints produced on a textile article made of natural or synthetic fibers, previously dyed or printed, characterized in that it comprises the application of a dilute aqueous solution of an agent according to the invention to the textile article, then drying the article.
• the polyacrylamide (a) can be chosen from polyacrylamides with a molecular weight of between 10 4 and 10 8 , preferably between 10 5 and 10 7 .
• cationic amino resin (b) it is possible to use, for example, a resin of the types of those described in FR-A-2 041 667 and FR-A-2 292 729.
• the resins described in FR-A-2 041 667 are obtained by reacting a polyester resin with a terminal carboxylic group with an epoxy-amine addition compound, then by condensing the reaction product with epichlorohydrin.
• Preferred resins of this type are obtained, for example, by reacting polyethylene glycol adipate with an addition compound of diethylene triamine and an epichlorohydrin-bisphenol A resin, then condensing the reaction product with epichlorohydrin.
• the resins described in FR-A-2 292 729 are prepared by a process by which a dicarboxylic acid or a mixture of dicarboxylic acids is reacted with a mixture of polyamine and dialcanolamine, so as to obtain a soluble polyamide-polyester copolymer in water and said copolymer is then condensed with epichlorohydrin.
• the agent of the invention after suitable additional dilution, can be applied continuously or discontinuously to the dyed or printed textile article to be treated.
• a preferred mode of application is application by padding in a treatment bath. But other techniques like exhaustion are possible.
• a padding bath containing approximately 10 to 50 g of the agent of the invention per liter of bath, or a dilution of the agent of the invention from 20 to 100 times.
• the textile article, after expressing, is dried under the usual conditions at a temperature of the order of 100-130 ° C.
• the process of the invention makes it possible to improve the resistance to friction of dyes and prints produced on textile articles made of natural or synthetic fibers with various classes of dyes, such as reactive dyes, direct dyes, with sulfur, derivatives of naphthol or of pigments.
• dyes such as reactive dyes, direct dyes, with sulfur, derivatives of naphthol or of pigments.
• the cationic resin used is that which is described in Example 1 of FR-A-2,041,667 cited above.
• the polyacrylamide is dissolved in the dilution of resin and water kept stirring at 60 ° C.
• a cotton fabric is dyed with a reactive dye reference CI Reactive Red 49 in the Color Index.
• This dye is applied by exhaustion according to the conventional method at a rate of 6% of dye relative to the weight of the fiber.
• the dyed fabric obtained After dyeing, it is rinsed with water, then the dyed fabric obtained is treated in a soaping bath at 90 ° C., it is rinsed with water, then the fabric obtained is dried.
• a piece of this fabric is treated by padding, with an impregnation rate of 70%, in a solution containing 40 g / l of the agent prepared in Example 1.
• the sample obtained is then dried for 2 minutes at a temperature of 130 ° C.
• the resistance to dry and wet friction of the tissues before and after treatment with the agent of the invention is determined by the method of standard NF G 07.066. The following results are obtained: Friction Dry Wet Before treatment 4 3 After treatment 5 4.5
• 5 corresponds to total solidity.
• a cotton fabric is dyed with 12% of a black sulfur dye (sold under the name Noir Hydrosol by the company CASSELLA) according to a conventional process of dyeing by padding followed by spraying at 102-104 ° C for 1 min. .
• a black sulfur dye sold under the name Noir Hydrosol by the company CASSELLA
• the impregnation is carried out by padding as in Example 2. Finally, it is dried at 130 ° C., then the rub resistance is determined.
• a cotton fabric is dyed with 6% of a reactive dye referenced Reactive Violet 5 in the Color Index.
• Dyeing is carried out by exhaustion according to a conventional process.
• Example 1 After rinsing and soaping the dyed fabric, the agent prepared in Example 1 is applied by exhaustion in a bath containing 3% of said agent, adjusted to pH 5.5 with acetic acid, using a fabric: bath ratio 1:10.
• the sample is treated for 15 minutes at 65 ° C, then dried under the usual conditions (100-130 ° C, 1-2 min) without rinsing.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Coloring (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9490599

Family Applications (1)

Country Status (2)

Cited By (2)

Citations (7)

• 1996
  • 1996-03-27 FR FR9603810A patent/FR2746808B1/fr not_active Expired - Fee Related
• 1997
  • 1997-03-25 EP EP97400673A patent/EP0798414A1/de not_active Withdrawn

Patent Citations (7)

Non-Patent Citations (1)

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