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
  • D06P5/30—Ink jet printing
• • 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
  • D06P1/5278—Polyamides; Polyimides; Polylactames; Polyalkyleneimines
• • 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
  • D06P1/645—Aliphatic, araliphatic or cycloaliphatic compounds containing amino 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
  • D06P1/673—Inorganic compounds
• • 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
  • D06P1/673—Inorganic compounds
  • D06P1/67333—Salts or hydroxides
  • D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
• • 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
  • D06P1/673—Inorganic compounds
  • D06P1/67383—Inorganic compounds containing silicon

Definitions

• the present invention generally relates to the printing of textiles. Due to the many various types of textile substrates that printing is performed on, and the many various types of printing inks, is often difficult to obtain consistency in the quality of the print between printed textiles. These complications are magnified by the difficulty of obtaining a quick drying, sharp focused print on textile materials in general. Additionally, pigment based inks require additional binders, and most dyes require an additional dye fixing process when printing on a textile. Therefore, there is a need for materials that allow the printing on various different types of textiles with various different types of printing inks thereon, enhance the fast pickup of the ink on the textile and help in obtaining sharp well defined patterns, and assist in the reduction of the need for special binders or fixing processes for printing on textiles.
• the present invention is directed to the treatment of a textile substrate for the subsequent reception of a printing ink, such as ink from an ink jet printer.
• the treatment of the present invention includes the placement of a treatment of a dye fixing/receiving composition on the surface of the textile substrate which is to receive the printed ink, prior to placement of the printing ink on the textile substrate.
• the dye fixing/receiving composition generally includes a dye fixing agent and an ink receiving agent.
• the dye fixing/receiving compound can include a compatible resin binder. Additional additives can be used with the dye fixing/receiving composition, such as whitening agents, antimicrobial agents, light stabilizers/UV absorbers, and lubricants.
• the textile with the dye fixing/receiving agent thereon can also be subjected to a mechanical treatment to improve the flexibility and surface touch of the treated textile.
• the treatment of the present invention includes the placement of a UV absorber on the surface of the textile substrate which is to receive the printed ink, prior to placement of the printing ink on the textile substrate.
• the textile substrate contributes to whiteness, texture, and physical porous structure for holding the ink.
• the textile substrate can be a knit, woven, nonwoven, or similar type textile.
• the textile substrate is a tight woven fabric. It has been found that textile substrates formed of dull white opaque textured or spun yarns provide a good substrate for the present invention.
• tightly woven fabrics from cotton staple yarns provide opacity and absorbency that assists in the functions of the treatment of the textile substrate.
• the material of the textile substrate can be synthetic, natural, or regenerated. In most cases, it is the treatment that receives a majority of the dyes in the ink. It has been found that the present invention with a bright white substrate provides better brightness and contrast for the resulting image on the textile.
• the surface touch of the textile substrate, before and after treatment and printing, can be greatly improved by surface sanding, especially by the use of fine grade sanding media prior to treatment of the substrate. Sanding with fine grid sanding media, such as fine diamond, gives the fabric surface fine short fibers, which is responsible for smooth and soft touch.
• the hairiness of the textile substrate was measured with average fiber heights of about 0.15 millimeters or greater, and an average level of about 0.3 - 0.8 millimeters was preferred. In these hairiness levels, the present inventors have discovered that the inkjet printing process or print quality are not effected.
• the dye fixing/receiving composition of the present invention includes a dye fixing agent and an ink receiving agent.
• the fixing agent has a molecular weight of at least about 1000.
• the fixing agent of the present invention comprises reactive amino compounds of a highly cationic nature.
• a preferred reactive amino compound is a compounds having a high positive charge density (i.e., at least two (2) milliequivalents per gram).
• Reactive amino compounds that can be used in the present invention include compounds containing at least one primary, secondary, tertiary, or quaternary amino radical. Additionally, the reactive amino compounds can contain a reactive group that is capable of reacting with the textile substrate or resin binder to form a bond thereto. Examples of a reactive group include epoxide, isocyanate, vinylsulphone, and halo-triazine.
• Ink receiving agents of the present invention are inorganic particles that receive the ink through adsorbancy or absorbancy.
• the particle size of the ink receiving agent is equal to, or less than, about 10 microns.
• the particle size of the ink receiving agent is equal to, or less than, about 3 microns.
• the particle size of the ink receiving agent is equal to, or less than, about 1 micron.
• examples of ink receiving agents of the present invention include silica, silicate, calcium carbonate, aluminum oxide, aluminum hydroxide, and titanium dioxide.
• Bohemite alumina and silica gel work well in the present invention, especially silica gel particle that have been treated to carry a cationic charge.
• silica gel particles alumina surface coating and cationic silane surface modification are preferred.
• the microporous nature of the bohemite alumia and silica gel allow further physical entrapment of a dye/pigment, such as an anionic dye/pigment, to afford improved wash fastness.
• the inorganic particles have a porousity with a pore diameter from about 10nm to about 200nm.
• the cationic charge from cationic reactive amino compounds is much greater than the cationic charge present on the inorganic particles. Therefore the mere presence of relative minor cationic charge on the inorganic particle would not significantly improve the dye/substrate interaction through cationic-anionic charge interaction. It is combination of highly charged reactive amino compound and the microporous inorganic particles that further improves the washfastness of a printed article.
• the fixing agent typically will comprise from about 0.2% to about 20% by weight of the treated textile substrate. In one embodiment, the ink receiving agent typically will comprise from about 0.2% to about 20% by weight of the treated textile substrate. In one embodiment, the dye fixing/adsorbing composition comprises from about 1 % to about 10%, by weight, of the treated textile substrate. In another embodiment, the dye fixing/adsorbing composition comprises from about 1 % to about 5%, by weight, of th treated textile substrate. Prior to placement on the textile substrate, the dye fixing/receiving composition is preferably in the form of a stable aqueous solution or dispersion. In the embodiment using a resin binder, the resin binder must be a binder that will have good a bond with the fiber of the textile substrate.
• the resin binder can be a thermoplastic or thermosetting polymeric binder. It is preferable that the resin binder has a glass transition temperature of below about 40°C. It is also preferred that the binder be durable when subjected to washing.
• resin binders include non-anionic or cationic latices, such as ethylenevinylacetate, acrylic, urethane polymer, polyamide, polyester, and polyvinyl chloride. In one embodiment, the resin binder comprises up to about 10% of the weight of the treated substrate.
• Whitening agents can include white pigments and optical brighteners. White pigments provide an improved white background for the inks and dyes placed on the textile substrate, thereby increasing the contrast of the image on the textile substrate.
• the print exhibits good crocking resistance and water fastness within a few minutes after printing.
• the article with the image can also withstand repeated laundry cycles with little color fade. It has been discovered that the present invention works well when the pH of the laundry detergent is in the range of from about 4 to about 8.
• Color value (CIE L*, a* and b* values) of each of the colors on the printed substrates after one wash and five washes was measured using an X-Rite SP78 Spectrophotometer utilizing the QA Master software for Microsoft Windows Version 1.71 (both manufactured by X-Rite Inc., Grandville, Ml). E versus the color printed on a piece of white paper was used to measure the degree of color loss. Wet crocking (AATCC test method 8-1996), and waterfastness (AATCC test method 107- 1997) were also measured on each primary color on the substrates after one wash. The test results are summarized in Table 1 and Table 2.
• EXAMPLE 8 Similar formula as in Examples 1-3 was used, except that Kymene 736 was not included. The same cotton woven cotton substrate as in Example 1 was treated in the same manner as Example 1. Print quality and color fastness were measured. The color yield of Example 8 was significantly lower and dramatic color loss was observed after one wash.
• addition of a compatible softener can reduce the needle force required to pass a needle through the treated substrate.
• the woven poplin cotton fabrics for Examples 18-21 were impregnated with the corresponding treatment above, passing through nip rolls to get a wet pickup of about 80%.
• the impregnated fabrics were dried in a convection oven at 300°F for about 5 minutes.
• a sample of the substrate is placed in a master solution containing dye molecules of a known charge, the light absorbency of the master solution is measured before and after immersion, the difference in absorbency is used to calculate the amount of dye molecules left on the sample, and the amount of dye molecules left on the sample and the area of the sample are used to calculate the charge density of the substrate before immersion.
• Two inch (2") by two inch (2") samples of the textile substrate were immersed into a twenty five (25) gram master solution for ten (10) minutes.
• the master solution was formed using 121.5 mg of cresol red (CAS# 1733-12-6) dye (404.2g/mol. by Aldrich) into 431.0g de-ionized water to make a 0.0282% solution by weight.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Ink Jet Recording Methods And Recording Media Thereof (AREA)
• Ink Jet (AREA)
• Coloring (AREA)

Applications Claiming Priority (5)

Publications (2)

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Family Applications (1)

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• 2002
  • 2002-08-27 EP EP02759509A patent/EP1446282A4/de not_active Withdrawn
  • 2002-08-27 WO PCT/US2002/027759 patent/WO2003020502A1/en not_active Application Discontinuation
  • 2002-08-27 AU AU2002324841A patent/AU2002324841B2/en not_active Ceased
  • 2002-08-27 CA CA002455905A patent/CA2455905A1/en not_active Abandoned
  • 2002-08-27 NZ NZ531458A patent/NZ531458A/en unknown
  • 2002-08-27 JP JP2003524792A patent/JP2005501977A/ja not_active Withdrawn

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