油墨与相关技术

改进油墨喷印映象性能的方法；用于聚合树脂的颜料浓缩物的生产工艺；用于汽车塑料窗印刷的基于聚脂和，或聚碳酸脂树脂的装饰油墨；圆珠笔用贮存稳定的油性油墨组合物；快速固化、低黏度的辐射固化喷墨油墨组合物；制备相变油墨和相变油墨用特定的品红着色剂……[编者按]     

聚氨酯在油墨中的应用概况

介绍了聚氨酯树脂在油墨中的应用,包括在油墨连接料和油墨胶粘剂中的应用。并对聚氨酯树脂在油墨中的应用发展做了简单的展望。     

不平静的美国油墨用树脂市场

1 市场分析 美国1997年油墨用树脂的消费总量为24.2万t,约占油墨原料的四分之一。其中松香树脂为8.6万t,占总消费量的35.7％,是第一大类油墨用树脂,松香树脂来源于妥尔油、松树的树胶脂和木胶脂,主要用于快速干燥的热定形凹版印刷和平版印刷油墨中;来源于石油的烃类树脂是第二大类的油墨用树脂,主要用于轮卷胶印用印刷     

塑料印刷用油墨稀释剂的配制

塑料印刷用油墨大都是由色料、树脂、溶剂和辅助剂组成的,对配制稀释剂来说,只要弄清楚树脂和溶剂的主要成份就够了。根据不同类型的树脂在有机溶剂中具有不同的溶解性,作者通过简单的实验方法,利用树脂对有机溶剂的溶解性来确定油墨中树脂的类型。参照塑料印刷用油墨中所含树脂的类型和承印材料的特性,结合有关的资料,可以初步拟订出油墨稀释剂应采用的溶剂。通过蒸发速率的测定、参考有机溶剂的有关数据、利用混合溶剂的蒸发速率公式,便可得到塑料印刷用油墨稀释剂的配方。本方法简单、易行,并大大节约成本。     

聚酮树脂在油墨中的应用研究

对聚酮树脂在塑料(PE、PP)表面印刷油墨、复合印刷油墨、铝箔油墨及纸张上光油共四个体系进行了应用对比试验,用微量热重分析仪测定了聚酮树脂热稳定性,考察了聚酮树脂对油墨光泽、附着牢度及初干性的影响.     

塑料水性凹印油墨附着性能的研究

采用合适的颜基比和分散剂制备了塑料水性凹印油墨基墨,用与基墨具有良好相容性的树脂溶液调稀基墨,添加各种助剂以改善油墨样品的印刷适性,探讨了颜基比、树脂溶液、助剂对油墨附着力的影响。结果表明:基墨中颜基比为3:1、分散剂为1.5%时油墨在PET和BOPP塑料表面均有较好的附着力,制备油墨时,使用50%的AZ-3808树脂溶液并添加1.5%异丙醇或1.5%润湿剂时,油墨在PET塑料表面具有较好的附着力,使用50%的1424树脂和1437树脂的混合溶液并添加1.5%异丙醇时,油墨在BOPP塑料表面具有较好的附着力。     

环保醇溶性油墨树脂开发成功

成都国和科技有限公司成功开发出新一代环保型醇溶性油墨GH-CZ-W醇溶复合油墨树脂,最近该产品通过四川省科技厅组织的专家鉴定。 目前,国内外已经开发的醇溶性油墨树脂主要有聚乙二醇缩丁醛树脂、聚氨酯树脂、聚酰胺树脂等,但上述树脂存在着价格高或性能不稳定等问题,在实际工业应用上仍有较大障碍。此次创新研发的醇溶性树脂,属于新型改性醋酸乙烯一丙烯酸酯体系,是具有自主知识产权的国家级新产品,已申请国内和国际发明专利。     

塑料复合油墨用聚氨酯树脂的研究进展

本文简单介绍了塑料复合油墨及其所用的连接料树脂,并总结了不同连接料树脂体系塑料复合油墨的优缺点;重点介绍了国内塑料复合油墨用醇酯溶型和水性聚氨酯连接料树脂的研究现状及进展,并基于国家的环保政策、法规的要求,以及日益收紧的VOC排放标准的严峻形势下,对未来塑料复合油墨聚氨酯连接料树脂的发展方向进行了展望。     

氯乙烯系树脂油墨的制造和用途

氯乙烯系树脂油墨是合成树脂油墨之一。本文叙述该种油墨的制造工艺、特性和用途。     

油墨与相关技术

蓝色薄片、化妆品涂料组合物、树脂组合物和含其的油墨组合物：WO2005—28 567，毛细管作用闪光标记及相同的油墨组合物：WO2005—28 214，含乙烯基醚和光致产酸化合物的喷印油墨：EP1 528 088，用于凹版印刷的油墨基料及含此油墨的组合物：KR2003—58 342     

Some properties of a thickener for preparing inkjet printing ink for nylon carpet

The properties of a thickener for nylon carpet inkjet printing are presented in this work. A water-based ink was prepared from polyacrylate-based thickener. The physical and chemical properties of the polyacrylate-based thickener used for preparing the inkjet printing ink, as well as its printing effects on carpet, were investigated. Before printing, the properties of the ink, including its surface tension, electrolyte resistance, storage stability, and percentage removal, were investigated. After printing, the efficiency of coloration of printed carpet and the fastness of printed carpet were studied. The results concerning the surface tension and percentage removal of printing ink show that the polyacrylate-based thickener printing ink is suitable for nylon carpet inkjet printing. Meanwhile, its storage stability and electrolyte resistance make it suitable for printing. The efficiency of coloration of printed carpet and the fastness of printed carpet satisfy the requirements of application at appropriate ink concentration and viscosity.     

印刷油墨清洗剂的研究及开发进展

印刷油墨清洗剂是印刷行业用来清除印刷油墨的一种精细化学品。文章对传统的汽油、煤油类印刷油墨清洗剂及混合溶剂型,乳液、微乳液型,水基、半水基型,天然成分环保型等新型印刷油墨清洗剂的研究及开发进展进行了综述;概括分析可知传统汽油、煤油类印刷油墨清洗剂,对环境、工作人员的健康有严重的影响,环境友好、安全性高且质优价低是新型油墨清洗剂的研制目标。     

喷墨打印技术的发展现状

简要介绍了喷墨打印技术的发展现状。目前主要有两类喷墨打印技术:连续喷墨打印和脉冲喷墨打印技术。前者可设计成双重或多重弯曲系统;后者可分为热喷墨、压电喷墨、阀门喷墨、静电喷墨过程,描述了喷墨打印用墨的最新发展。水性、溶剂性、热熔性、紫外固化和反应性墨是目前主要的喷墨打印用墨。     

环保乳化速印油墨研制分析

环保乳化生产的油墨,是以少量的油包大量的水而形成的稳定的W/O型乳状液,并且具有良好的油墨的基本性能和印刷性能,甚至优于油性油墨的印刷性能。这样生产的油墨,含水率高,工艺简单、安全性好。用大量的水代替油,不仅有着突出的经济效益,而且社会效益也相当显著。对油墨行业起着很好的引导作用,是未来油墨行业的发展方向。所有的原料均无毒,是非常好的绿色产品。     

Gravure offset printing of polymer inks for conductors

A gravure offset printing process has been developed for Ag-filled polymer conductor ink. Pad printing and roller type printing have been used. Curing and electrical properties have been studied. A roller type of gravure offset printing has been used to evaluate the printing process and pad printing to print on the non-planar substrates. Based on differential scanning calorimetry (DSC) and resistivity measurements during ink curing, it was found that the ink had an optimum curing temperature of 140 °C. Square resistance of 300 and 150 μm wide lines can be as low as 20 and 28 mΩ/sq., respectively, for 7–8.5 μm thick line. The minimum line width was 70 μm. This minimum line width can be reduced with different ink solvents, but in this case the line thickness suffers and the square resistance increases, respectively.     

Ink‐jet printing of cotton with natural dyes

Four natural dyes, annatto, cutch, pomegranate fruit rind, and golden dock, were used as colorants for the preparation of water‐based ink‐jet inks for digital textile printing. The physical and rheological properties (pH, conductivity, surface tension, and viscosity) of the inks were measured over a period of 90 days for the evaluation of ink stability and suitability for ink‐jet printing. The inks were found to be suitable and were used for the digital printing of cotton fabrics. The prints were subjected to wash, light, and rub fastness tests and colour measurements. Colour consistency and fastness results, especially after fixation, are comparable with those of synthetic dyes, which paves the way for the production of environmentally friendly ink‐jet inks using natural dyes for the digital printing of cotton through the formulation of suitable printing techniques.     

The influence of ink viscosity,water and fabric construction on the quality of ink‐jet printed polyester

This paper is concerned with the quality of lines and disperse ink in printing patterns on different untreated polyester fabric constructions. The lines running in the weft and warp directions were printed on polyester fabric constructions, and printing accuracy was assessed. Ink spreading is one of the important factors that influences the ink distribution. Thus, in order to acquire satisfactory ink‐jet printing products, it is essential to control the spreading of ink on the polyester fabric. To meet these conditions, a series of chemicals (disperse dye 5.01 wt%, PVP‐K30 0‐2 wt%, DEG 5‐20 wt%, water 64.17‐79.17 wt%, etc) with different mass fractions was used to prepare disperse ink. The jetting behaviour of ink was related to its surface tension and viscosity, which was characterised by an automatic surface tensiometer and rotational viscometer. Line profile was used to evaluate the printing effect. Low field nuclear magnetic resonance and three‐dimensional super depth digital microscopy were used to reveal the relationships between the state of water, ink diffusion behaviour and printing sharpness. The results showed that increasing ink viscosity or decreasing free water content is advantageous to improve the sharpness of the printing pattern. The effects of fabric structural parameters on line image quality are discussed. The printing quality was closely related to the weight and structure of fabric. The heavy weight fabrics had accurate print pattern sharpness. The fastness test results showed that the ink printing pattern had good colour fastness.     

新型油墨清洗剂的研制及其应用研究

成功地研制了一种新型、高效、安全、低成本的油墨清洗剂,克服了直接使用溶剂而带来的易燃、易爆的缺点.此油墨清洗剂是由乳化剂、表面活性剂、溶剂及其它助剂构成的O/W型微乳液.结果表明清洗剂各组分的复配比对清洗剂使用性能具有较大影响,该微乳液可替传统溶剂型油墨清洗剂用于印刷机件上油墨的清洗,且使用效果和安全性能超过汽油、煤油...     

幂律油墨在纸张中渗透深度的计算与实验

利用一维渗流方程导出了印刷过程中幂律油墨渗透深度随印压和印刷速度(印压时间)的变化关系,由渗透深度测量值和所推幂律油墨渗透深度公式计算了幂律油墨在几种型号纸张中渗透率与纸张孔隙度的比值(渗孔比). 改变印压和印刷速度,由幂律油墨渗孔比,利用幂律油墨渗透深度公式对油墨渗透深度进行了估算,结果与实验测量值吻合得很好.     

发展中的数码喷墨用UV固化油墨

应用UV固化油墨于数码喷墨 ,是 1种新兴喷印技术。文章针对数码喷印技术、油墨成分及其油墨的相应要求进行了阐述 ,文中涉及了现有的成型产品 ,并对UV固化油墨的发展趋势进行了展望 ,有助于人们了解这项新技术和新产品