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    • 3. 发明授权
    • Ink-jet ink compositions containing reactive macromolecular chromophores for digital and textile printing
    • 含有用于数字和纺织品印刷的反应性大分子发色团的喷墨油墨组合物
    • US06323257B1
    • 2001-11-27
    • US09298626
    • 1999-04-23
    • John R MoffattJoseph W Tsang
    • John R MoffattJoseph W Tsang
    • C09D1102
    • C09B68/24C09B69/10C09D11/32D06P1/38D06P5/30
    • The present invention relates to ink-jet ink compositions that comprise modified pigment particles (macromolecular chromophores) having functional groups covalently attached for water solubility and reactive moieties covalently attached to the pigments. MMC with such reactive moieties attached can either a) react directly with cellulose or other textile material or, b) can participate in polymerization reactions. These reactive moieties may in turn be further derivatized to provide the desirable attribute, such as enhanced smearfastness, enhanced print quality, improved bleed control, and improved resistance to water when applied to the media. Moreover, inks formulated with these reactive MMCs demonstrate viscosity and surface tension characteristics that are useful in ink-jet printing. This includes thermal ink jet, piezoelectric ink jet, and continuous ink jet printing.
    • 本发明涉及喷墨油墨组合物,其包含具有共价连接水溶性官能团的改性颜料颗粒(大分子发色团)和与颜料共价连接的活性部分。 具有这种反应性部分的MMC可以a)直接与纤维素或其它纺织材料反应,或b)可以参与聚合反应。 这些反应性部分又可以进一步衍生化,以提供所需的性质,例如增强的防粘性,增强的印刷质量,改善的渗色控制,以及当施用于培养基时改善的耐水性。 此外,用这些反应性MMC配制的油墨表现出在喷墨印刷中有用的粘度和表面张力特性。 这包括热喷墨,压电喷墨和连续喷墨印刷。
    • 4. 发明授权
    • Pigment solubilization via treatment with strong base and substitution
    • US06602335B2
    • 2003-08-05
    • US09851659
    • 2001-05-08
    • John R MoffattJoseph W Tsang
    • John R MoffattJoseph W Tsang
    • C09D1102
    • C09D11/322C09B67/0008
    • A method for dispersing a pigment in an aqueous solution is provided. The method comprises: (a) providing the pigment, which is distinguished in having an azo group and either a &bgr;-diketo structure or a hydroxyl group, each conjugatively associated with the azo group; (b) treating a surface of the pigment with a base having sufficient strength (e.g., a pKa of at least 6) to generate a negative charge on the pigment; and (c) reacting the negatively charged pigment with either (1) a first hydrophilic molecule containing at least one functional group comprising a carbon—carbon double bond and a carbonyl that is alpha to the carbon—carbon double bond which reacts via addition to form a hydrophilic group on the pigment or (2) a second hydrophilic molecule containing at least one functional group selected from the group consisting of anionic functional groups, cationic functional groups, and zwitterionic functional groups and at least one suitable leaving group which reacts via substitution to form a hydrophilic group on the pigment. The treated pigment is rendered comparatively soluble in water-based inks, thereby eliminating the need for any dispersant to disperse the pigment.
    • 5. 发明授权
    • Polymeric additives to improve print quality and permanence attributes in ink-jet inks
    • 高分子添加剂,以提高喷墨油墨的印刷质量和持久性
    • US07829608B2
    • 2010-11-09
    • US12185055
    • 2008-08-01
    • Joseph W TsangJohn R Moffatt
    • Joseph W TsangJohn R Moffatt
    • C09D11/00
    • B41M5/0017B41J2/2114B41J11/0015B41M7/0018
    • Two-part fixatives are provided in conjunction with overcoating at least one ink-jet ink printed on a print medium and comprise (1) at least one first reactive component comprising a reactive monomer or oligomer, the reactive species selected from the group consisting of iso-cyanates and epoxy-terminated oligomers, optionally in a vehicle, and (2) at least one second component selected from the group consisting of polyols and polyvinyl alcohols, plus one or more base catalysts, optionally in a vehicle. The two components and catalyst(s) are deposited on the print medium on which the ink-jet ink has been printed, and react to form a hydrophobic polymer overcoating the printed ink and having a glass transition temperature within a range of −20° C. to +50° C. and a melting temperature within a range of 30° C. to 100° C.
    • 提供两部分固定剂,其中连续地涂覆印刷在印刷介质上的至少一种喷墨油墨,并且包括(1)至少一种包含反应性单体或低聚物的第一反应性组分,所述反应性物质选自iso - 氰酸酯和环氧封端的低聚物,任选地在载体中,和(2)至少一种选自多元醇和聚乙烯醇的第二组分,以及任选地在载体中的一种或多种碱催化剂。 将两种组分和催化剂沉积在印刷有喷墨油墨的印刷介质上,并反应形成覆盖印刷油墨的疏水性聚合物,玻璃化转变温度在-20℃ 至+ 50℃,熔融温度在30℃至100℃的范围内。
    • 6. 发明授权
    • Polymeric additives to improve print quality and permanence attributes in ink-jet inks
    • 高分子添加剂,以提高喷墨油墨的印刷质量和持久性
    • US07446134B2
    • 2008-11-04
    • US10824687
    • 2004-04-14
    • Joseph W TsangJohn R Moffatt
    • Joseph W TsangJohn R Moffatt
    • C09D11/00
    • B41M5/0017B41J2/2114B41J11/0015B41M7/0018
    • Two-part fixatives are provided in conjunction with overcoating at least one ink-jet ink printed on a print medium and comprise (1) at least one first reactive component comprising a reactive monomer or oligomer, the reactive species selected from the group consisting of iso-cyanates and epoxy-terminated oligomers, optionally in a vehicle, and (2) at least one second component selected from the group consisting of polyols and polyvinyl alcohols, plus one or more base catalysts, optionally in a vehicle. The two components and catalyst(s) are deposited on the print medium on which the ink-jet ink has been printed, and react to form a hydrophobic polymer overcoating the printed ink and having a glass transition temperature within a range of −20° C. to +50° C. and a melting temperature within a range of 30° C. to 100° C.
    • 提供两部分固定剂,其中连续地涂覆印刷在印刷介质上的至少一种喷墨油墨,并且包括(1)至少一种包含反应性单体或低聚物的第一反应性组分,所述反应性物质选自iso - 氰酸酯和环氧封端的低聚物,任选地在载体中,和(2)至少一种选自多元醇和聚乙烯醇的第二组分,以及任选地在载体中的一种或多种碱催化剂。 将两种组分和催化剂沉积在印刷有喷墨油墨的印刷介质上,并反应形成覆盖印刷油墨的疏水性聚合物,玻璃化转变温度在-20℃ 至+ 50℃,熔融温度在30℃至100℃的范围内。
    • 8. 发明授权
    • Polymers derived from unsaturated surfactants for use in ink-jet inks
    • 衍生自用于喷墨油墨的不饱和表面活性剂的聚合物
    • US06177485B1
    • 2001-01-23
    • US09251947
    • 1999-02-17
    • John R MoffattJoseph W Tsang
    • John R MoffattJoseph W Tsang
    • C09D1110
    • C09D11/30
    • The properties of ink-jet inks containing a colorant (pigment, macromolecular chromophore, or dye) are improved by adding thereto an additive, specifically, one or more polymers derived from unsaturated surfactants. The unsaturated surfactant(s) has at least one carbon-carbon double bond (C═C). The polymer may be simply an polymer of the unsaturated surfactant. Alternatively, the polymer may be co-polymerized with one or more vinyl monomers or one or more polymers based on the vinyl monomers may be mixed with the unsaturated surfactant polymer. The vinyl monomer(s) or polymer(s) are used to adjust or “tweak” the properties of the resultant polymer. For example, the more hydrophobic the polymer or the higher its molecular weight, then the greater the water-fastness afforded the ink-jet ink. The polymeric additive of the invention improves bleed control, water-fastness, and smear-fastness of ink-jet inks, particularly thermal ink-jet inks.
    • 通过添加添加剂,特别是一种或多种衍生自不饱和表面活性剂的聚合物,可以改善含有着色剂(颜料,大分子发色团或染料)的喷墨油墨的性质。 不饱和表面活性剂具有至少一个碳 - 碳双键(C = C)。 聚合物可以简单地是不饱和表面活性剂的聚合物。 或者,聚合物可以与一种或多种乙烯基单体共聚,或者一种或多种基于乙烯基单体的聚合物可以与不饱和表面活性剂聚合物混合。 乙烯基单体或聚合物用于调节或“调节”所得聚合物的性质。 例如,聚合物疏水性越高,分子量越高,那么提供喷墨油墨的耐水性越好。 本发明的聚合物添加剂改善了喷墨油墨,特别是热喷墨油墨的渗色控制,耐水性和涂抹性。