适用于打印器色带油墨的连结料

评价一组被氧化聚合的植物没作打字机和打印机色带油墨的连结料，被评价的油是菜籽油，蓖麻油,亚麻仁油和豆油，评价包括氧化油作为连结料应用于色带油墨工业基本性质的研究，也包括用于双色墨，字模黑（matrix/black)，双色红和多击黑（multis tike black)色带油墨的配方。     

有机铝化合物在油墨连接料中的凝胶性能

简要介绍了有机铝油墨凝胶剂种类及凝胶原理,研究了3种凝胶剂用量、保温时间及保温温度对松香改性酚醛树脂油墨连接料凝胶性能(黏度和屈服值)的影响。试验结果表明,凝胶性能次序为:XP148>AIE-M>OAO,其中XP148油墨凝胶剂在提高树脂油墨屈服值方面作用特别明显。     

凝胶剂用量对胶印油墨性能的影响

采用有机铝型凝胶剂制备凝胶型连接料和胶印油墨,并研究了不同凝胶剂用量对连接料和胶印油墨的流变性能、印刷适性和乳化率的影响。试验结果表明:随着凝胶剂用量的增加,连接料和油墨的流动性能、黏弹性和触变性提高,并可有效减少飞墨,提高抗乳化能力,改善水墨平衡性能,使胶印油墨的流变性能更加适应高速印刷的要求。     

基于改性亚麻仁油的有机／无机光固化膜的光固化机理及其反应性研究

用亚麻仁油和环戊二烯合成了改性亚麻仁油(NLO)光固化低聚物,其结构用红外光谱(FT-IR)进行了表征.基于改性亚麻仁油、巯基硅氧烷和光引发剂制备了有机/无机杂化光固化膜,对其光固化机理进行了分析,对无机粒子在改性亚麻仁油中的分布用AFM(原子力显微镜)进行了观测,建立了该有机/无机杂化体系的光固化模型.对杂化膜光固化反应性用Photo-差示扫描热分析仪(Photo-Differential Scanning Calorimeter)进行了测试,Photo-DSC测试结果表明:巯基硅氧烷能大大提高改性亚麻仁油体系光固化速率,环烯键对硫醇十分敏感.     

低硬度的印刷胶辊的研制

胶辊是印刷机的重要部件,低硬度的印刷胶辊常用于传递油墨,通过胶辊将油墨传至印刷版上去,并且要求它能够抗耐亚麻仁油、煤油或机油等。尤其是凸版印刷用的胶辊要求硬度低,以便印刷的成品清晰。     

三山嵛精的流变改性能力研究

借助流变学手段研究了三山嵛精的流变改性能力。通过表观黏度随剪切速率变化的流动曲线、触变性以及黏弹性等测试,考察了三山嵛精对油凝胶体系流变特性的影响,建立了油凝胶体系的流变特性分析方法。结果表明,该系列油凝胶是一类具备触变性的黏弹-假塑性流体,符合幂律方程模型。在实验添加量范围内,增加三山嵛精可有效提高油凝胶体系的假塑性程度和触变性,同时加强体系的内部凝胶网络结构。利用上述流变分析方法,通过考察三山嵛精对口红膏体流变特性的影响发现,三山嵛精可在不影响涂抹顺滑感的情况下明显提升质地较软的口红膏体的结构强度,从而提高稳定性。     

凝胶调驱体系在路36断块的应用

针对华北油田上第三系砂岩油藏高孔、高渗、特高含水的路36断块开展了凝胶调驱剂的研究,通过室内实验,确定了调驱剂的基本配方,考察了聚合物、交联剂、促交剂用量对凝胶黏度的影响。通过合理控制聚交比等参数,制得可适用于76℃地层温度的凝胶调驱体系,该体系具有成胶黏度可控、热稳定性好等特点。     

新发明

中国专利CNll25243A报道了一种可擦性书写油墨,由成膜剂橡胶、润滑剂、低沸点溶剂.高沸点分散剂和着色材料组成,其中橡胶占油墨总量的8%～18%,润滑剂为固态形式存在的单甘酯或双甘酯及乙二醇单酯或乙二醇双酯,用量占油墨总量的1%～12%,低沸点溶剂为脂肪烃溶剂或芳香烃溶剂,其用量占油墨总量的10%～60%,高沸点分散剂是沸点高于280℃的煤油或与邻苯二甲酸、二辛酯的混合物,占油墨总量的     

高强堵剂JB-H的室内研究与评价

针对聚合物凝胶堵水剂存在凝胶强度低、耐温耐盐性差等缺点,研究出了一种新型高强堵剂.通过红外光谱、黏度、凝胶强度、岩心流动试验等对JB-H堵剂体系配方进行了测试.结果表明:该堵水体系JB-H堵剂可应用温度为110℃以下的中低温油藏层;在矿化度小于100 g/L的盐水中,封堵性能无较大影响,抗盐性能良好;对高渗透裂缝封堵率...     

高温耐蒸煮凹版复合油墨在配方设计中的选材问题

简单介绍了高温耐蒸煮凹版塑料复合油墨的特性,并从连结料、颜料、润湿分散剂、蜡粉、抗静电剂、有机溶剂的选择等几方面分析了其配方设计中应注意的问题。     

Development of karanja oil based offset printing ink in comparison with linseed oil

The conventional offset lithographic printing ink is mainly based on linseed oil. But in recent years, due to stiff competition from synthetic substitutes mainly from petroleum products, the crop production shrinks down to an unsustainable level, which increases the price of linseed oil. Though soyabean oil has replaced a major portion of linseed oil, it is also necessary to develop alternate cost effective vegetable oils for printing ink industry. The present study aims to evaluate the performance of karanja oil (Pongamia glabra) as an alternative of linseed oil in the formulation of offset printing ink because karanja oil is easily available in rural India. Physical properties of raw karanja oil are measured and compared with that of alkali refined linseed oil. Rosin modified phenolic resin based varnishes were made with linseed oil as well as with karanja oil and their properties are compared. Sheetfed offset inks of process colour yellow and cyan is chosen to evaluate the effect of karanja oil in ink properties. In conclusion, karanja oil can be accepted as an alternate vegetable oil source with its noticeable effect on print and post print properties with slower drying time on paper. However, the colour and odour of the oil will restrict its usage on offset inks.     

Offset printing inks based on rapeseed and sunflower oil. Part I: Synthesis and characterization of rapeseed oil-and sunflower oil-modified alkyd resins

Two sets of alkyd resins of variable oil lengths with the required properties for offset printing ink formulations, modified by sunflower and rapeseed oil, were synthetized according to the “monoglyceride” process. The influence of the acyl composition of the modifying vegetable oil and of the oil content on alkyds’ properties was determined by detailed chemical and rheological characterization. Molecular structure, size, and molecule size distribution appeared to be linked to these two factors. A comparative study with two usual linseed oil-modified alkyds led to determination of the more appropriate alkyds for applications in offset varnishes.     

Evaluation of plant-based oils for production of offset printing ink

The oils and solvents are the main components of the printing ink, and the chemical composition of the ink could be harmful or toxic to human health and the environment. Therefore, there is an increasing demand to develop inks containing green, biobased, sustainable, and renewable raw materials instead of petrochemical substances. In this study, flaxseed oil (FO), pomegranate seed oil, plum kernel oil (PKO), and grape seed oil (GSO) were selected to produce offset printing inks. Pinus pinaster (P. pinaster) resin was also used in the formulation of inks to examine the effects of natural resin on ink together with vegetable oils. The phenolic content was analyzed for the resin and oils to figure out their potential antioxidant and bioactive characteristics. Optical and rheological tests were applied to evaluate the printability of the inks. L*a*b*, ΔE, density, and gloss tests were performed for optical evaluation. The viscosity, tack, and rub resistance tests were applied to perform rheological analysis. The biobased, environmental friendly, and self-drying (cold set) offset printing inks were obtained using natural pine resin and three different plant-based oils FO, PKO, and GSO. The printability analysis of the inks figured out the potential usage of plant-based oils in the offset printing ink formulation.     

酰胺改性氢化蓖麻油在平版印刷油墨中的应用研究

通过试验,在传统平版印刷油墨体系(松香改性酚醛树脂、醇酸树脂)中添加酰胺改性氢化蓖麻油,考察其对油墨流动性及应用性能的影响。     

丙烯酸酯单体结构对UV油墨的流变性和分散性的影响

油墨的印刷适性与其流变学性能和分散性密切相关,UV单体是影响油墨的流变学性能和分散性的主要因素。本论文使用不同UV单体研制了UV丝印油墨,重点探讨了TMPTA、EO3-TMPTA、PO3-TMPTA三种单体的结构对研制的UV丝印油墨的粘度、触变性、动态粘弹性和油墨细度的影响。     

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.     

Lithographic and letterpress ink vehicles from vegetable oils

Our objectives for this study were to produce vegetable oil-based printing ink vehicles that did not require any petroleum components, which meet or exceed industry standards for rub-off resistance, viscosity and tackiness for a variety of printing applications. These objectives were satisfactorily met. Vehicles were completely compatible with carbon black, making them suitable for black ink formulations. In addition, the resulting vehicles had exceptionally light colors, and permitted formulations of colored inks that had substantially reduced pigment levels compared to industry standards.     

The use of natural (Pinus pinaster) resin in the production of printing ink and the printability effect

Alkyd resins are generally used in the production of printing inks. All industries look for alternative raw materials in the production of ink with the growing inclination toward using natural products. Resins forming the vehicle of the ink to be obtained from natural resources will provide benefits for the environment, nature, and living creatures. The aim of the study was to promote the use of natural resin in the ink system. Natural Pinus pinaster resin was added into vegetable and mineral oil-based solvents in pure form with alkyd resin in different amounts and ink varnishes of different combinations were prepared. Then, printing inks were produced from these varnishes in pure and hybrid form. Following the assessment of the rheological properties of the inks prepared, printing tests were conducted to assess the printing quality parameters. Ideal mixing ratios of the natural resins in the ink were determined for printability. The environmental importance and advantages of the use of natural resins were discussed. Recommendations were given in line with the results to encourage widespread use of natural resins in near future.