喷打用蓝色陶瓷表面装饰墨水的制备与性能

制备了一种与传统陶瓷表面装饰的新技术(连续式喷墨打印法)配套的新型墨水——蓝色陶瓷表面装饰墨水。它以陶瓷颜料为基本着色料,用溶胶—凝胶法制备,以连续式喷墨打印墨水的质量标准为参照标准。经测试,所制墨水的电导率、表面张力、粘度等理化性能完全符合喷墨打印墨水的要求,适用喷墨打印法陶瓷装饰工艺的需要。研究了分散剂、粘接剂、pH值、固含量等工艺因素对该墨水性能的影响。该墨水制成时为草绿色,经煅烧,各组分反应生成颜料,显现蓝色。     

我国具有自主知识产权陶瓷墨水成功研制

7月10日下午,经华南理工大学专家教授一致评定。华南理工大学博士后张翼研究的项目成果《喷墨打印陶瓷色料的制备》处于国内领先水平,目前已成功制备出符合喷墨打印要求的蓝色和黄色墨水以及喷墨打印样板。蓝色、黄色陶瓷墨水目前能应用于喷墨打印陶瓷喷墨打印技术是将含有超细陶瓷色料的墨水通过大型平板喷墨打印机直接打印在釉面砖生坯表面的一种陶瓷装饰技术。     

陶瓷墨水的制备及其应用

陶瓷数字喷墨打印技术是一种极具潜力的陶瓷装饰技术,是现代计算机技术与陶瓷装饰材料技术相结合的产物,其具有传统陶瓷装饰工艺无可比拟的的优势。本文探讨了喷墨打印陶瓷墨水的制备及其在陶瓷制造中的应用。通过分析陶瓷墨水的合成方法、墨水的性能要求和喷墨陶瓷打印工艺的应用等领域的最新进展情况,笔者认为喷墨打印陶瓷墨水的成功研发及其与喷墨打印机兼容性研究是该技术应用的基础,喷墨陶瓷打印技术可为实现陶瓷制品表面装饰的复杂化、自动化提供新的技术路线和解决方案,因而在制备高附加值瓷砖领域,具有巨大的竞争力,显示出良好的应用前景。     

陶瓷表面装饰墨水的制备研究

本文以市面上现有的陶瓷色料为原料,通过物理分散法制备陶瓷墨水。主要研究了分散剂对墨水体系的影响,并对墨水的稳定性进行了分析,最终规模化试制陶瓷墨水,该墨水可应用于喷墨打印用陶瓷砖表面装饰。     

读者信箱

问:近几年陶瓷行业喷墨打印技术迅猛发展,使用陶瓷喷墨打印机的企业也越来越多,请介绍一下它在使用过程中容易出现哪些问题及其解决的方法?答:陶瓷装饰用喷墨打印技术是将着色剂制成的多色墨水,通过喷墨打印的方式将其直接打印到陶瓷制品表面上,烧成后呈色的装饰方法。喷墨打印技术与现有的陶瓷装饰手段相比,具有不可比拟的优势、良好的应用前景和巨大的商业机会。现将使用过程中容易出现的问题和解决方法介绍如下:     

陶瓷装饰用彩喷墨水研究进展

介绍了陶瓷装饰用喷墨打印技术的概念、特点及陶瓷墨水的性能要求,分析了彩色陶瓷墨水组成和制备技术的研究进展。     

读者信箱

<正>问:陶瓷墨水的主要性能指标是什么?其检测方法有哪些?答:陶瓷装饰用喷墨打印墨水是通过喷墨打印的方式施于待装饰陶瓷制品上,经过800℃以上烧制后起装饰作用的液态物料。陶瓷墨水应满足:1喷墨打印的要求:粘度、表面张力、粒度分布等;2高温烧成显色:色差;3其他参数:pH值、固含量、稳定性等性能要求。陶瓷墨水检测用设备有:墨水理化性能测试设备     

陶瓷喷墨打印墨水的研究进展

陶瓷喷墨打印技术是一种非接触式数字化印刷技术,较传统印花有其不可比拟的优势,使其在陶瓷装饰方面的应用越来越广泛。陶瓷墨水的制备是影响该技术的重要因素之一。概述了陶瓷喷墨打印墨水的制备方法:分散法、溶胶—凝胶法、反相微乳液法和多元醇法,为陶瓷墨水的进一步研发、应用提供理论依据。     

陶瓷表面装饰墨水的制备研究

采用分散剂NNO与聚羧酸类化合物作为分散剂,以水为介质,通过砂磨分散研制无机颜料墨水,研究了该混合分散剂的比例,添加剂及含固量对无机颜料墨水性能的影响,经测试,所制墨水的粒径、粘度、表面张力等指标完全符合喷墨打印墨水的要求,其中黑色墨水的着色剂含量可达20%,打印于陶瓷上,经煅烧显色正常.     

陶瓷墨水的制备及其性能研究

作为陶瓷装饰材料与计算机科学结合的交叉应用技术,陶瓷数字喷墨打印技术具有传统陶瓷装饰技术无可比拟的优势。研究利用研磨分散法成功制备出蓝色的陶瓷墨水,并探究了不同的超分散剂体系及其用量对墨水性能的影响。     

Different shades of red: The complexity of mineralogical and physico-chemical factors influencing the colour of ceramics

Different techniques (X-ray diffraction, field emission scanning electron microscope, colorimetry, visible-near infrared reflectance spectroscopy) were carried out to investigate the cause of colour changes of traditional ceramic materials. Two clayey materials of different composition, collected in the Bay of Naples, were fired in oxidising atmosphere at different temperatures resulting in different shades of red colour.Hematite is responsible of the reddish hue of ceramics and its nucleation is strictly related to firing temperature and chemical composition of the raw materials. A low CaO concentration allowed hematite to form in higher amounts providing a more intense reddish hue at high firing temperatures (over 950 °C). At the highest temperature (1100 °C) all samples showed darker colour due to increased size of iron oxide particles. Black core developed in Ca-rich ceramics fired at low temperatures as the short time of firing is insufficient to complete iron oxidation within the matrix, except in those containing high temper amounts. Indeed, microstructural modification occurs due to the presence of discontinuities among temper grains and matrix, which improves the circulation of oxygen in the core of ceramics.     

陶瓷坯体中氧化铁红的呈色稳定性及其影响因素的研究

本文考察了烧成温度、陶瓷坯体中常见氧化物,以及二氧化硅包裹对铁红呈色稳定性的影响。结果表明,陶瓷坯体中铁红的呈色主要受四种因素影响：（１）温度,高温下铁红本身不稳定,易失氧而成黑色四氧化三铁,因此对呈色不利;（２）陶瓷坯体中某些活泼成分（如氧化钙等）,高温下易与铁红反应生成其它颜色的物质,因此对呈色不利;（３）陶瓷坯体中另一些活泼成分（如氧化镁等）,高温下也易与铁红反应,但生成物较稳定且接近红色,     

机械力化学制备陶瓷材料的研究进展

在球磨过程中机械力化学使颗粒和晶粒细化产生裂纹，比表面积增大，晶格缺陷增多，晶格发生畸变和非晶化，乃至诱发低温化学反应，可制备出高活性陶瓷粉体和性能优异的陶瓷基材料。介绍了机械力化学在陶瓷材料研究中的最新研究进展。同时，还讨论了不同球磨工艺条件对材料制备过程的影响；并对其未来发展进行了展望。     

A new method for colour measurements in graphic arts

This article presents a method for colour measurements directly on printed half‐tone multicoloured pictures. The article introduces the concept of colour impression. By this concept we mean the CMY or CMYK vector (colour vector), which lives in the three‐ or four‐dimensional space of printing inks. Two factors contribute to values of the vector components, namely, the percentage of the area covered by cyan, magenta, yellow, and black inks (tonal values) and ink densities. The colour vector expresses integrated information about the tonal values and ink densities. Values of the colour vector components increase if tonal values or ink densities rise and vice versa. If, for some primary colour, the ink density and tonal value do not change, the corresponding component of the colour vector remains constant. If some reference values of the colour vector components are set from a preprint, then, after an appropriate calibration, the colour vector directly shows how much the operator needs to raise or lower the cyan, magenta, yellow, and black ink densities in order to correct colours of the picture being measured. The values of the components are obtained by registering the RGB image from the measuring area and then transforming the set of registered RGB values to the triplet or quadruple of CMY or CMYK values, respectively. Algorithms based on artificial neural networks are used for performing the transformation. During the experimental investigations, we have found a good correlation between components of the colour vector and ink densities. © 1999 John Wiley & Sons, Inc. Col Res Appl, 24, 185–196, 1999     

寿州窑瓷器造型文化研究

江淮名窑寿州窑,创烧于我国南北朝时期,兴盛于隋唐,衰落于五代宋。在其悠长的发展历程里,寿州窑烧制了许许多多的陶瓷用品,大致可分为饮食器、盛储器、酒具、文具、寝具、玩具、建筑用瓷等,釉色崇尚黄、黑釉,造型浑厚饱满,古朴沉稳,姿态万千,多样的的造型符号传递了当时的社会文化背景、瓷器制作水平和审美文化,为深入研究中国古陶瓷文化提供了珍贵的资料,对当今的文创产品开发也大有裨益。     

Direct ink writing of 3D piezoelectric ceramics with complex unsupported structures

Piezoelectric ceramic, as a typical smart material, shows great potential in applications of sensing & actuation, smart structure and energy harvesting. However, the use of traditional methods to fabricate complex and high-precision piezoelectric ceramic devices faces huge technical difficulties and high molding costs. Direct ink writing is a typical additive manufacturing technology, but has limited capabilities when preparing ceramic products with complex unsupported structures. In this work, a combined process of direct ink writing (DIW) and secondary shaping of flexible ceramic green body has been developed and proved to produce complex piezoelectric ceramics. The PZT ink shows shear thinning behavior and appropriate viscoelasticity such as moderate viscosity and high storage modulus. The printed green body can be flexibly deformed and the samples after polarization show good piezoelectric properties, with an average d₃₃ up to 265 pC/N. This work demonstrates an attractive method for geometrically complex piezoceramic with unique macro structure due to its simplicity and low cost, and provides a solution to the key problems in the existing manufacturing technology of 3D ceramics.     

现代陶艺介入建筑与环境装饰艺术的研究

阐述了现代陶艺作为一种装饰形式在建筑与环境艺术设计领域应用的价值与意义，探讨了陶艺砖石应用于建筑与环境装饰艺术的途径、方法。     

还原焰烧成陶瓷制品泛黄的原因分析及其解决途径

简要介绍了陶瓷产品还原焰烧成的重要性和复杂性,说明了还原焰烧成时制品泛黄的主要表现形式,详细分析了产品泛 黄的主要原因,并提出了解决还原烧成产品泛黄缺陷的具体措施。     

Formulation and characterization of black ceramic ink for a digital ink-jet printing

Formulation of black ceramic ink and its ink-jet printability on a glass substrate were investigated. The thermal and chemical stabilities of CoFe_2-xCr_xO₄ and Ni_0.925Mn_0.075Fe_1.875-xCr_xMn_0.125O₄ black inorganic pigments were analyzed with various amounts of Cr substitutions. The ceramic ink was prepared using the pigment composition that demonstrated color stability during the high temperature glazing process with a minimal Cr substitutional amount. After the dispersion stability and rheological property were optimized, the ceramic ink was suitably jetted from a print head as a single sphere-shaped droplet without satellite droplets. To improve the printability of the ceramic ink, the glass substrate was treated with a perfluorooctyl trichlorosilane (PFTS) solution. As a result, the PFTS surface treatment increased the contact angle of the ceramic ink droplets on the glass substrate and effectively minimized the ink spreading phenomena.