塑料薄膜水性凹版印刷油墨的应用和发展

一、塑料薄膜凹版印刷油墨类别、成份1.溶剂型凹版印刷油墨所用树脂是聚酰胺树脂,氯化聚丙烯树脂,聚氨酯树脂,所用的有机溶剂甲笨、二甲笨、乙酯、异丙醇等混合溶剂。2.无苯氯化聚乙烯油墨、无苯聚氨酯油墨所用的有机溶剂是醋酸乙酯、丁酮、异丙醇、丁酯和醚类。醇溶油墨。醇脂(无苯无丁酮)油墨。3.醇水型丙烯酸油墨采用丙烯酸树脂,使用酒精、乙酯和纯水做溶剂。4.水性凹版印刷油墨多采用高酸值的松香马     

光固化UV仿金属 皱纹（皮纹）油墨的研制与应用

紫外光固化UV仿金属皱纹（皮纹）油墨，是丝网印刷的特种装饰性油墨，可广泛应用于包装印刷领域，提高产品的包装档次，使产品增值增色。     

绿色包装油墨的应用

绿色包装印刷的水溶性油墨在卷筒纸张的吸收性材料表面进行印刷已有十几年历史了.运用现代技术将国产高效添加剂和纯天然树脂松香,直接组成和引入油墨体系,使油墨运用在软包装塑料薄膜、塑料编织袋、钙塑纸箱、皮革等材料的印刷,以及在非吸收性材料(塑料、铝箔等)表面上的印刷已成为现实.     

含有偶联剂的水性包装印刷油墨中的若干技术问题探讨

一、绿色水性油墨的历史使命 在保护环境、节省能源、减少污染及循环利用和安全生产的呼声中,我国包装印刷的水性油墨在短短的20年里以其35%的用量排在了其他包装印刷油墨之首.纵观一个辊筒可用于印刷各种不同尺寸的信息图文,从而去除了对许多种不同周长印刷辊筒的需求;水墨自动泵入的给墨方式,结束了调墨、输墨装置对油墨粘度的丢失…….越是高档的尤其是水性印刷油墨,它的印刷特性就越强,适应范围也就越窄.特别是它的印刷功能性质在于宣传引导一种包装印刷新潮流,而并非畅销的油墨商品,专用印刷油墨如果换上另一种包装承印载体特征,这种油墨也许比其他油墨质量高级.     

在塑料包装上运用水墨的方法和措施

考核一个包装印刷油墨品牌，不仅是产值规模和利润的多少，更重要的是看这种包装印刷油墨产品是否能够循环利用和再生复用的稳定性，一墨多用的印刷适应性和环保安全又无公害。因为，要想将油墨制品推向市场，保证稳妥的加快加速软包装印刷制品的品质的升级换代，而维护国民经济又好又快地向前发展。必须先学会为人类生存环境的改善着想。     

我国包装印刷油墨现状及发展趋势

包装印刷的质量除了决定于印刷设备外,油墨的质量起着十分重要的作用。尤其从环保、卫生、安全而言,包装印刷的环保性、卫生性和安全性主要决定于包装印刷油墨。     

简谈UV油墨的使用

UV油墨是近年来迅速发展的一种环保型油墨,它以瞬间固化(干燥)、不含挥发性溶剂、应用简单方便等迅速占领市场。UV油墨包括UV磨砂、UV冰花、UV发泡、UV皱纹、UV凸字、UV折光、UV宝石、UV光固色墨、UV上光油等特种包装油墨。在具有金属镜面光泽的承印物表面,采用丝网印刷工艺手段将UV油墨印在其表面上,经紫外线于燥设备光照处理后,产生一种别具一格的视觉效果,显得高雅、庄重、华贵。产品主要应用于高档、精美别致的烟、酒、化妆品,保健品、食品、药品等包装印刷。一、UV油墨1.组成UV油墨就是在UV光照射下,发生交联聚合反应,瞬间固化成膜的油墨。它主要由光聚合性预聚物、感光性单     

环保型豆油基油墨技术特性

豆油基油墨作为环保型胶印油墨的发展方向之一，具有减少印刷油墨VOC、环境友好和使用可再生资源的优势，可满足印刷包装业的绿色环保要求。印刷环保化的发展趋势，对于豆油基油墨的发展将是很好的机遇。     

印刷油墨脱辊的成因与排除

在我们的包装印刷过程中,偶尔也会遇到印刷出现条痕或色彩浅淡的现象,这种被称为不下墨和墨脱辊的故障,是因包装印刷油墨体系的颜料、填料发胀导致油墨整体胶化所致。从理论的角度去解释：油墨的屈服值太高,油墨太短而成了乳酪状。从实用的角度讲：油墨中的颜料、填料太多,才使油墨胶化或在贮存过程中水进入了油墨体系而导致部分絮疑。长期以来,人们针对发胀或胶化采取不断搅拌墨斗中的油墨,或者在墨斗中安装一个搅拌器,也有在墨斗的油墨上放一个铁棍,将油墨推向墨斗辊,以保持包装印刷油墨的流动性。操作工大都喜欢采用中、高粘度…     

可食性油墨及应用现状研究

可食性油墨因具有可供人食用的性能,在食品、药品等可食产品的表面装潢印刷以及此类产品的包装印刷中已经崭露头角.对该油墨的原理、配方组成、印刷工艺和质量评价进行了分析与综述,对应用该油墨的现状及市场前景进行了分析与展望.     

Insertion of triangulated surfaces into a meccano tetrahedral discretization by means of mesh refinement and optimization procedures

In this paper, we present a new method for inserting several triangulated surfaces into an existing tetrahedral mesh generated by the meccano method. The result is a conformal mesh where each inserted surface is approximated by a set of faces of the final tetrahedral mesh. First, the tetrahedral mesh is refined around the inserted surfaces to capture their geometric features. Second, each immersed surface is approximated by a set of faces from the tetrahedral mesh. Third, following a novel approach, the nodes of the approximated surfaces are mapped to the corresponding immersed surface. Fourth, we untangle and smooth the mesh by optimizing a regularized shape distortion measure for tetrahedral elements in which we move all the nodes of the mesh, restricting the movement of the edge and surface nodes along the corresponding entity they belong to. The refining process allows approximating the immersed surface for any initial meccano tetrahedral mesh. Moreover, the proposed projection method avoids computational expensive geometric projections. Finally, the applied simultaneous untangling and smoothing process delivers a high‐quality mesh and ensures that the immersed surfaces are interpolated. Several examples are presented to assess the properties of the proposed method.     

The Research of Anti-Wear Properties of Organomolybdenum Compounds in the Engine Oils

A four-ball tester was used to evaluate the anti-wear performance of three kinds of organomolybdemun compounds in the engine oils, i. e., molybdenum dialkyldithiophosphate (MoDDP), molybdenum dialkyldithiocarbamate ( MoDTC), and sulphur and phosphorus freeorganomolybdeum (Molybdate). The results indicate that a low concentration of MoDDP doesn' t improve the anti-wear properties of the commercial engine oils, but a high concentration of MoDDP can obviously improve the anti-wear properties and the load-carrying capacity of the engine oils. MoDTC doesn' t improve the antiwear properties of the engine oils, but worsens the anti-wear properties of the oils. Signifi can timprove ment of frictional and wear characteristics is obtained with Molybdate added in the commercial engine oils and the formulated oils.     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

Flow calorimeter for enthalpy increment measurements on condensed gases

A flow calorimeter for enthalpy increment measurements on condensed gases is presented. A better knowledge of the properties of the liquefied natural gas is needed, and therefore a liquid loop has been designed for our flow calorimeter. The fluid loop in the calorimeter is designed in order to avoid the two-phase region, since two phases would give compositional disturbances in the measurements. The avoidance of the two-phase region is made possible by increasing the pressure of the test fluid after the measurement section, then heating the fluid at super-critical pressure past the critical point. Finally, the fluid is throttled to the low-pressure gas state at the inlet condition of the compressor that circulates the fluid. To perform the pressure increase, a new cryogenic pump has been designed. To evaluate the new equipment, measurements were taken on liquid ethane over the temperature range 146–256 K at pressure between 0.9 and 5.1 MPa.     

Refrigerators Enter a New Era of Health Preservation Frestech initiates the establishment of China's first standard for household sterilization refrigerators

On November 30, 2007, the China Association for Standardization (CAS) held a press conference at Beijing Diaoyutai State Guest House. Leaders from the China Household Electric Appliance Research Institute, the China Household Electric Appliance Association, and the China Consumers' Association attended and made speeches.……     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

A study of centrifugal cast high boron high speed steel

In the present study a high‐boron high speed steel (HSS) roll material was designed. Many expensive alloy elements have been substituted by cheap boron alloy, and high‐boron high speed steel roll has been manufactured by centrifugal casting method. The microstructures, mechanical properties and wear resistance of centrifugal casting high‐boron high speed steel roll have been investigated by optical microscopy (OM), scanning electron microscopy (SEM), and X‐ray diffraction (XRD) analysis, hardness test, impact test and wear test. The results indicated that the solidification microstructures of high‐boron high speed steel roll consisted of M₂(B,C), (W,Mo)₂(B,C), M₃(B,C), M₂₃(B,C)₆ type borocarbides and martensite, a small amount of retained austenite. Borocarbides were continuously distributed over the grain boundary. After quenching from 1050 °C, local broken network appeared in partial borocarbides, and fine secondary borocarbide precipitated from the matrix. After tempering from 525 °C, the amount of precipitated borocarbide increased significantly. After heat treatment, the hardness of high‐boron high speed steel roll excelled 60 HRC, and its impact toughness excelled 8.0 J/cm². The single groove steel rolling amount of high‐boron high speed steel rolls increases by 500% than that of bainite cast iron roll, when the rolls are used in K₁ mill housing of bar mill.     

Certification Becomes Important for the I Quality; and Safety Supervision of the Chinese Liquor Sector

The end of 2007, over 200 unit products of more than 80 Chinese firms have passed the quality grade certification for liquor products. These products involve distilled spirits, beer, wine, yellow wine, fruit syrup wine and others, and cover over 80% of the national top-branded liquor products.……     

Deposition and Coating Properties on CVD Tungsten

Surface characterization and microstructure studies are performed on chemical vapor deposited (CVD) tungsten coating. There is about 2 μm thickness diffusion layer of tungsten in the molybdenum substrate. The thermal shock test shows tungsten coating has good adhesion with molybdenum substrate, but the elements of oxygen and carbon in the tungsten coating have the bad affection to the adhesion. The result of high-temperature diffusion experiment is the diffusion rate from molybdenum substrate to tungsten coating is faster.