METHOD FOR COLORING TEXTILE SUBSTRATES, AQUEOUS PRETREATMENT BATHS, AND USE THEREOF FOR THE PRETREATMENT OF TEXTILE SUBSTRATES

• US 20090191383A1
• Filed: 06/22/2005
• Published: 07/30/2009
• Est. Priority Date: 06/29/2004
• Status: Abandoned Application

• Current Assignee: BASF AG (BASF SE)
• Original Assignee: BASF AG (BASF SE)
• Inventors: Seidl, Clarissa, Freche, Mike, Kluge, Michael, Dieleman, Cedric
• Application Number:
  US11/571,025
• Publication Number:
  US 20090191383A1
• Time in Patent Office: Days
• US Class Current: 428/195.1
• CPC Class Codes: D06P 1/5242 Polymers of unsaturated N-containing compounds
• CPC Class Codes: D06P 1/56 Condensation products or precondensation products prepared with aldehydes
• CPC Class Codes: D06P 1/6491 (Thio)urea or (cyclic) derivatives
• CPC Class Codes: D06P 5/30 Ink jet printing
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Abstract

A process for coloring a textile substrate comprises a textile substrate

• (a) being pretreated with an aqueous pretreatment liquor comprising
  • (A) at least one resin selected from melamin derivatives, dimethyloldihydroxy-ethyleneurea (DMDHEU) and derivatives of DMDHEU, and
  • (B) at least one thickener, and thereafter
• (b) being printed by the ink jet process.

Claims

1-14. -14. (canceled)

15. A process for coloring a textile substrate, which comprises pre-treating a textile substrate

(a) with an aqueous pretreatment liquor comprising

(A) at least one resin selected from melamine derivatives, dimethylol-dihydroxyethyleneurea (DMDHEU) and derivatives of DMDHEU, and

(B) at least one thickener,

(C) at least one polycationic compound, and

(D) optionally at least one additive, and thereafter

(b) printing by an ink jet process.

16. The process according to claim 15, wherein textile substrate pretreated according to (a) is dried before being printed according to step (b).

17. The process according to claim 15, wherein at least one melamine derivative in step (a) is a condensation product of melamine with at least one aldehyde selected from C₆-C₁₄-arylaldehyde and aliphatic aldehydes, said condensation product having been etherified with at least one aliphatic alcohol if appropriate.

18. The process according to claim 15, wherein aliphatic aldehydes are selected from formaldehyde and C₁-C₁₀-alkylaldehyde.

19. The process according to claim 15, wherein at least one melamine derivative in step (a) is a melamine derivative obtainable by reaction of melamine with 1 to less than 3 equivalents of at least one aldehyde and subsequent etherification with 4.5 to 10 equivalents of at least one polyhydric aliphatic alcohol.

20. The process according to claim 15 wherein at least one polyhydric aliphatic alcohol is ethylene glycol, diethylene glycol or triethylene glycol.

21. The process according to claim 15 wherein at least one thickener (B) is an associative thickener of the general formula I to III

U[-T-(E)_y-]_x—

U 

 

I

U-(E)_y-U 

 

II

U-T-U 

 

III

where

E is in each occurrence the same or different and selected from —

CH₂—

CH₂, —

CH₂—

CH(CH₃)—

, —

CH₂—

CH(C₂H₅)—

,

y is an integer from 1 to 100 000,

T is in each occurrence the same or different and a diisocyanate-derived unit,

x is an integer from 1 to 500,

U is in each occurrence the same or different and selected from units derived from aliphatic alcohols, thiols, amines or carboxylic acids each having 4 or more carbon atoms or aromatic alcohols, thiols, amines or carboxylic acids each having 6 or more carbon atoms, alcohols, thiols, amines or carboxylic acids having C₇-C₁₃-aralkyl moieties or heteroaromatic alcohols, thiols, amines or carboxylic acids.

22. The process according to claim 15, wherein at least one polycationic compound (C) is a polymer or copolymer of a diallyldialkylammonium monomer.

27. A textile substrate prepared by a process of claim 15.

23. An aqueous pretreatment liquor comprising

(A) at least one resin selected from melamine derivatives, dimethylol-dihydroxyethyleneurea (DMDHEU) and derivatives of DMDHEU,

(B) at least one thickener,

(C) at least one polycationic compound, and

(D) optionally at least one additive.

24. The aqueous pretreatment liquor according to claim 23 that comprises

(A) from 0.1% to 50% by weight of at least one resin selected from melamine derivatives, dimethyloldihydroxyethyleneurea (DMDHEU) and derivatives of DMDHEU,

(B) from 0.1% to 50% by weight of thickener.

(C) from 0.1% to 50% by weight of polycationic compound, and

(D) from 0% to 30% by weight of additives.

25. A pretreatment composition comprising

(A) at least one resin selected from melamine derivatives, dimethylol-dihydroxyethyleneurea (DMDHEU) and derivatives of DMDHEU,

(B) at least one thickener,

(C) at least polycationic compound, and

(D) optionally at least one additive.

26. A process for producing an aqueous pretreatment liquor by mixing at least one pretreatment composition according to claim 25 with water.