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    • 17. 发明申请
    • Pigment dispersion with polymeric dispersant
    • 颜料分散体与聚合物分散剂
    • US20060014855A1
    • 2006-01-19
    • US10891334
    • 2004-07-14
    • Gary HouseXiaoru WangAnne WyandWanda Swartz
    • Gary HouseXiaoru WangAnne WyandWanda Swartz
    • C08K5/00C03C17/00
    • C09D11/326C09D17/003
    • The invention relates to a pigment dispersion for an ink jet ink composition, the pigment dispersion comprising pigment particles having a median particle size of 200 nm or less, and a polymeric dispersant comprising a random addition copolymer comprising at least one hydrophobic monomer type and at least one hydrophilic monomer type, wherein the polymeric dispersant comprises from 50 weight percent to 80 weight percent of hydrophobic monomers relative to the total weight of the polymeric dispersant, and wherein, when the polymer comprises more than one hydrophobic monomer type, at least 50 weight percent of the hydrophobic monomers relative to the total weight of the hydrophobic monomers is an acrylate comprising an aromatic group. The invention also provides an ink composition and ink jet printing method using the pigment dispersion.
    • 本发明涉及一种用于喷墨油墨组合物的颜料分散体,所述颜料分散体包含中值粒径为200nm以下的颜料颗粒,和包含至少一种疏水单体类型的至少一种无规加成共聚物的聚合物分散体 一种亲水单体类型,其中所述聚合物分散剂包含相对于所述聚合物分散剂的总重量为50重量%至80重量%的疏水单体,并且其中当所述聚合物包含多于一种疏水单体类型时,至少50重量% 的疏水单体相对于疏水单体的总重量是包含芳族基团的丙烯酸酯。 本发明还提供一种使用该颜料分散体的油墨组合物和喷墨印刷方法。
    • 19. 发明授权
    • Inkjet printing method for an ink/receiver combination
    • 用于油墨/接收器组合的喷墨打印方法
    • US06773102B2
    • 2004-08-10
    • US10256589
    • 2002-09-27
    • Huijuan D. ChenXiaoru WangRicky G. Frazier
    • Huijuan D. ChenXiaoru WangRicky G. Frazier
    • G01D1100
    • B41M5/52B41J2/42C09D11/30C09D11/322
    • An ink jet printing method, comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element comprising a non-absorbing substrate; C) loading the printer with an ink jet ink composition comprising an aqueous ink jet ink composition comprising: a pigment, a polymer binder containing less than 25% of hydrophilic monomer by weight of the total polymer, which is dispersible but insoluble in aqueous media, at least one surfactant, and a humectant; and D) printing on the ink jet recording element accompanied by a heating step using the ink jet ink composition in response to the digital data signals.
    • 一种喷墨打印方法,包括以下步骤:A)提供响应于数字数据信号的喷墨打印机; B)用包括非吸收性基材的喷墨记录元件装载打印机; C)使用包含水性喷墨油墨组合物的喷墨油墨组合物装载打印机,所述喷墨油墨组合物包含:颜料,含有按聚合物总重量计不超过25重量%的亲水单体的聚合物粘合剂,其可分散但不溶于含水介质, 至少一种表面活性剂和湿润剂; 和D)响应于数字数据信号,使用喷墨油墨组合物伴随着加热步骤在喷墨记录元件上进行印刷。
    • 20. 发明授权
    • Process for making composite colorant particles
    • 制备复合着色剂颗粒的方法
    • US06635693B2
    • 2003-10-21
    • US09822096
    • 2001-03-30
    • Xiaoru WangYongcai WangEdward Schofield
    • Xiaoru WangYongcai WangEdward Schofield
    • C08K900
    • C08F2/44Y10S977/775Y10S977/897
    • A process for making composite colorant particles comprising, in order: I) suspending in an aqueous medium, under agitation, finely divided colorant particles to form an aqueous colorant mixture; II) adding to the aqueous colorant mixture an addition polymerization initiator; and III) causing the addition polymerization initiator to form a free radical while continuously introducing continuously to the aqueous colorant mixture a monomer mixture comprising: a) an addition polymerization initiator, and b) at least one ethylenically-unsaturated monomer; thereby forming the composite colorant particles having a colorant phase and a polymer phase.
    • 一种制备复合着色剂颗粒的方法,其包括:I)在搅拌下悬浮在含水介质中,细碎的着色剂颗粒以形成水性着色剂混合物; II)向水性着色剂混合物中加入加成聚合引发剂; 和III)使所述加成聚合引发剂形成自由基,同时连续向所述水性着色剂混合物中引入单体混合物,所述单体混合物包含:a)加成聚合引发剂,和b)至少一种烯键式不饱和单体;从而形成具有 着色剂相和聚合物相。