溶剂颜料型喷墨油墨粘度的研究

为了研究溶剂颜料型喷墨油墨的粘度,利用自行设计的YM—I型研磨机研磨分散制备油墨样品,测试了各油墨样品的粘度,探讨了分散剂、树脂、颜料、溶剂对溶剂颜料型喷墨油墨粘度的影响。     

喷墨打印机颜料型油墨的最新进展

喷墨打印技术是一种非接触式的数字印刷技术,它将数码技术与传统的印刷技术合二为一。用于喷墨印刷的染料型墨水通常表现出差的耐光性和耐水性,因此将颜料引进到喷墨油墨中以克服染料型墨水的缺点是必然趋势。为了在低粘度下保持颜料稳定的分散,性能优异的合成分散剂对于获得稳定的颜料分散体是必不可少的。本文介绍了水性喷墨油墨的组分及各组分作用,对喷墨油墨的生产技术、发展前景进行了展望。     

颜料型水性纳米色浆的制备及性能研究

颜料型水性喷墨油墨的研究是当前喷墨技术的热门研究课题,其关键技术在于喷墨油墨体系中颜料的分散性、分散稳定性以及对黏度的控制,而纳米色浆的制备,则是其重中之重.该文从不同的颜基比和分散时长出发,设计了多种颜料型水性纳米色浆的制备方案,对色浆的粒径、黏度及稳定性进行了研究,确定了获取最佳分散效果的设计方案.     

水性油墨中颜料的分散性能及对油墨印刷适性的影响分析

在印刷过程中,油墨需要经过几轮的转移和传递才能最终附着在印制品上,因此对油墨的附着性就提出了很高的要求,这在一定程度上决定着印刷质量。油墨的印刷适性不同,会产生质量迥异的情况。选择与印品质量相称的油墨,能有效提高生产效率,降低成本,避免产生浪费。水性油墨具有一种安全、环保、卫生、节能的特点,由于其具有水的成分,因此相比于普通油墨在颜料分散状态上具有很大差别。文章对水性油墨的成分和性能、水性油墨中颜料的分散性能、颜料分散性能对油墨印刷适性的影响等方面进行了分析和探讨,对提升油墨分散及其稳定性的方法展开了论述。文章认为,水性油墨中颜料的分散性能受到多种因素制约和影响,尤其是油墨的粘度和粒径对油墨质量有着很大影响,在提升油墨分散性及稳定性的时候,采用颜料表面改性的方式,通过适当添加表面活性剂达到稳定和分散效果。另外,在油墨制作和使用过程中还要考虑到环境保护实际情况。     

单体和预聚物对UV喷墨油墨性能的影响

单体和预聚物对UV喷墨油墨的性能有很大的影响,本论文通过改变预聚物的种类和颜基比,制备色浆,测试了粒度及其分布,探讨了不同的预聚物和颜基比对UV喷墨油墨色浆分散性的影响,实验结果表明,用预聚物V100在颜基比为2:1时所制备的色浆具有良好的分散性;通过考察单一单体对UV喷墨油墨性能的影响,利用NPGDA、EOEOEA、DPGDA组成的混合单体稀释色浆制备成UV喷墨油墨样品,采用配方试验方法,得到UV喷墨油墨样品各项性能参数最佳的混合单体的比例为3:30:20。     

水性油墨分散技术研究进展

结合国内外研究现状,对水性油墨的分散稳定机制、影响分散性的主要因素进行了综述分析,分析表明:颜料自身的可润湿性、粒径及粒径分布、树脂的特性、油墨的黏度及p H值都与水性油墨的分散性密切相关。在此基础上,阐述了提升分散性及分散稳定性的主要途径,包括对颜料进行表面改性处理、使用表面活性剂或超分散剂、设计颜料表面形貌及进行颜料预分散。并提出:随着国家产业调整的进一步深入,环保型水性油墨必将逐步取代传统溶剂型油墨,进一步提升水性油墨的质量已是当务之急。     

水性涂料中共存的有机溶剂对颜料分散的影响

在水性涂料中的颜料的分散受到包含在分散浆中的共存有机溶剂的分散性的影响,在水系统中颜料分散稳定性主要受到疏水性相互作用的影响.把共存有机溶剂的影响作为参数,测定了在有机溶剂共存下的[水/己烷]间的表面张力数值Yhsw,研究了它与分散性的关系.     

油墨与相关技术

200903146 含胶体和/或细分散纤维质材料的印刷油墨；200903147 用颜料型油墨在普通介质上形成改进了饱和度的复合色的体系和方法；200903148 油墨、油墨容器、喷墨记录法、记录设备及记录的文件；200903149 喷墨打印机用可熔油墨及选择这种油墨的方法     

由着色力变化评定着色颜料分散性

介绍了颜料分散性分散和评定方法系列国际标准的概况,选择了一种分散方法和一种评定方法对若干颜料样品进行了试验,并由试验结果对其分散性差异进行了分析比较。     

油墨、粘合剂与相关技术

200901164 圆珠笔和圆珠笔替换笔芯用水稀释油墨组合物及含该组合物的圆珠笔;200901165 喷印油墨组合物;200901166 制备含颜料粒子的液体组合物及用于喷墨记录的油墨组合物;200901167 含用涂料树脂包膜的带有原级粒子的复合颜料粒子的记录油墨;200901168 水性颜料分散体、防堵贮存稳定的水性油墨和喷印油墨……     

Preparation and characterization of waterborne ceramic ink with submicron-sized praseodymium-doped zirconium silicate pigment by water-based diblock polymer dispersants

Two diblock polymer dispersants (i.e., PMAA-b-AMPS and PSSS-b-GMA) were synthesized and used as water-based dispersants for dispersion and stabilization of waterborne ceramic ink with submicron-sized praseodymium-doped zirconium silicate (Pr-ZrSiO₄) pigment. The color property, dispersion, and stability of the pigment particles in aqueous suspension were determined by colorimetry, laser particle size analysis, and sedimentation test. The adsorption mechanism of carbon chains of dispersants on the particle surface was analyzed by Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and electrokinetic potential measurement. Also, the viscosity, surface tension and stability of waterborne ceramic ink with the pigment particles were measured by rheometry, surface tension analysis and standing settlement. The results show that the submicron-sized pigment particles in waterborne ceramic ink show optimum dispersibility and stability at 5 wt% addition of diblock polymer dispersants PMAA-b-AMPS and PSSS-b-GMA mixed in a mass ratio of 9:1. This could be since the mixed dispersants provide the more interparticle electrostatic repulsion and steric hindrance energies due to the proper adsorption on the particle surfaces. It is indicated that adding 20 wt% of diethylene glycol monobutyl ether into the waterborne ceramic ink can effectively enhance the viscosity and reduce the surface tension, thus satisfying the applied requirements in inkjet printing. In addition, the jettability of waterborne ceramic ink on a simulated ceramic green body was also evaluated based on semi-empirical analysis.     

水性颜料墨水技术文献综述

介绍了喷墨打印技术概况,综述了水性颜料墨水的主要成分、配方和制备工艺,并分析了水性颜料墨水的发展。以水作为主体溶剂,颜料而非染料作为发色剂,水溶性高分子树脂作为颜料颗粒的稳定剂和成膜剂、粘结剂,多种助剂协同配合,借助颜料的高耐候性和稳定性,以及非有机溶剂的环保性,水性颜料墨水成为优异的打印介质,其应用越来越广泛。     

色素炭黑润湿分散剂的选择

通过几个平行实验,对比了不同种类的润湿分散剂对色素炭黑的润湿分散效果、储存稳定性以及防浮色发花性,从中筛选出效果较好的分散剂。并从高分子吸附形态、高分子化合物浓度、溶剂、酸/碱基、粒子表面形态等对分散剂在颜料表面的吸附的影响进行了分析。结果表明,用带有颜料亲和基团的高分子量嵌段封闭共聚物和不饱和多元羧酸的多元胺聚酰胺结构的炭黑润湿分散剂研磨炭黑色浆效率高,细度下降快,研磨的色浆储存性好,黑度高,防浮色发花性好,在炭黑润湿分散方面取得了良好的效果。     

超细颜料水性分散体系喷射性能探讨

超细颜料墨水的喷射性能与墨水的组成密切相关.采用超细颜料、模拟多元醇和表面活性剂等组成超细颜料水性分散体系,观察了不同配方配制的超细颜料分散体系的喷射性能.通过测试分散体系粘度、表面张力等理化指标在分散机高速剪切和超声波处理后的变化情况,分析了超细颜料水性分散体系喷射性能与体系粘度和表面张力的关系.结果表明,超细颜料水性分散体系的粘度、表面张力以及超声波处理后粘度的变化决定着体系的喷射性能.     

Considerations on the energetics of pigment dispersions containing solvents and binders

Colloid chemistry mechanisms involved in the dispersing and stabilizing of pigments in vehicles are discussed from the aspect of energetics. The main cohesion and adhesion interactions in the ternary system represented by a pigment dispersion, and their effects on the colloid chemistry of paints and printing inks, are dealt with.

Established methods of measuring the interactions between pigment and solvent, pigment and polymer, and polymer and solvent are explained together with the variables involved. They concern adsorption isotherms, heat of adsorption and immersion, contact angle and surface tension, ellipsometry and neutron scattering, viscosity and degree of solvation; and light scattering, ultracentrifuging and electrophoresis.

Each of these items represents only one of the many, interrelated facets in the circle of problems involved in dispersing pigments. In this paper, an attempt is made to point out and elucidate in the light of energetic considerations an element that connects and governs all constituents of dispersions.     

高档水基油墨粘度影响因素的研究

为获得高固低粘的油墨配方体系,通过油墨的分散实验,探讨了分散树脂和乳液及其助剂对水基油墨体系粘度的影响规律,润湿分散剂对水基油墨粘度的影响,胺化剂对水基油墨粘度的影响机理。研究表明,乳液聚合物具有高固低粘特性,拼混使用不同的聚合物可获得理想粘度和应用性能;润湿分散剂能改变体系的表面张力和润湿性能,从而降低水基油墨体系的粘度;拼混使用不同的胺化剂可以获得粘度稳定的水基油墨体系。     

红色陶瓷墨水的制备与性能研究

采用金属盐溶解法制备出一种呈色良好并能满足喷墨打印机各项理化性能要求的红色陶瓷墨水.研究墨水组成和基础釉配方两种因素对该红色陶瓷墨水呈色性能的影响;并对喷墨陶瓷片烧成后的表面进行分析,探讨其呈色机理.结果表明:制得的陶瓷墨水表面张力、粘度、pH值等理化性能均符合喷墨打印机要求,且铬锡比为0.04∶1的陶瓷墨水施于高钙透明基础釉上烧成时呈色效果最佳.     

丙烯酸树脂类水性颜料型记号墨水的制备与稳定性研究

通过测试接触角和表面张力优选了表面活性剂和助溶剂,测试墨水附着性优选了附着力促进剂。配制由色浆、丙烯酸树脂、表面活性剂、附着力促进剂等助剂组成的水性墨水,用红外光谱和热重分析对树脂和树脂-附着力促进剂进行表征,测试墨水经高温和低温存放前后的黏度、微观、pH、粒径D50、表面张力等性能变化,最后测试了优选墨水的书写效果。结果表明,表面活性剂OP-10在该墨水体系中降低表面张力的效果最明显,乙醇润湿性最好;附着力促进剂的效果与其分子结构和添加量有关,过量的附着力促进剂易导致墨水稳定性下降,主要体现在微观、黏度、粒径的变化;优选墨水书写效果良好。     

Disperse ink‐jet inks: properties and application to polyester fibre

Water‐based ink‐jet inks were prepared using press cake samples of two commercially available azo disperse dyes. The suitability of the inks for printing polyester fabric was evaluated via measurement of surface tension, conductivity, viscosity, pH and particle size distribution. Inks prepared by the proposed method fulfill most requirements for an ink‐jet ink depending on the colorant structure, the dispersing agent and the alcohol used. The inks were applied to polyester fabric by both printing and dyeing and the fastness of the ensuing coloured samples was assessed. The fastness properties of the dyed and printed polyester samples were found to be very good to excellent and generally meet accepted customer requirements. Oil‐in‐water microemulsions containing the same colorants were also prepared. Their properties, which are crucial to the suitability for ink‐jet ink, were compared with those of the conventionally prepared inks and were found to be improved, with the exception of conductivity, while surface tension remained within acceptable values.