丙烯酸树脂包覆改性C.I.颜料黄14的制备研究

为提高C.I.颜料黄14在水性体系中的应用性能,对反应得到的C.I.颜料黄14在后续的热处理过程中采用丙烯酸树脂包覆,获得的产物用红外光谱和XRD进行了表征.考察了丙烯酸树脂的添加量对产物的着色性能和光泽的影响,并对产物耐乙醇性和分散稳定性进行了测试.结果 表明:本文制得的树脂包覆改性C.I.颜料黄14的着色力和光泽均...     

为什么C.I.分散黄23屡禁不止

C.I.分散黄23因涉嫌还原裂解致癌芳香胺4-氨基偶氮苯而被禁用。本文介绍了国内外有关4-氨基偶氮苯法规的修订历程,以及相关检测方法的改进。分析并比较了4-氨基偶氮苯的三种主要检测方法,包括欧盟标准EN14362:2003纺织品—偶氮染料释放出芳香胺的测试方法,Oeko-Tex标准100和德国§64LFGB B82.02-2006日用品测试方法可释放出4-氨基偶氮苯的某些偶氮染料验证等。     

C.I.分散黄71中间体的结构表征

合成了C.I.分散黄71染料中间体并用核磁共振谱和红外光谱表征了它们的结构.用gCOSY、gHSQC和gHMBC二维谱分别确定了其1H和13C NMR谱带的化学位移,同时报道了它们的红外光谱.     

C.I.颜料红177颜料化的初步研究

本文论述了Ｃ．Ｉ．颜料红１７７的颜料化方法及其基本过程并采用添加表面处理剂对该颜料进行颜料化处理。此外,本文还以海泡石为核,对该颜料进行包核颜料初步研究,结果表明,该颜料在水中具有较好的分散性。     

制约C.I.颜料黄191销售的知识产权问题与解决方案

目前在国内市场上可搜集到的C.I.颜料黄191(包括Clariant公司的产品)均为α晶型与β晶型的混合物,恰好在2003年专利的保护范围内,因此从法律层面上而言,除了Clariant公司,其他颜料制造商均不能生产与销售C.I.颜料黄191.要解决该颜料的销售问题,有两个解决方案,开发该颜料的新晶型或生产纯α晶型的C.I.颜料黄191,本文探讨了这两个方案的可行性.     

C.I.颜料绿7苯甲酸颜料化工艺研究

用苯甲酸及其烷基衍生物对酞菁绿粗品进行颜料化,制备不含添加剂的C.I.颜料绿7颜料.考察了苯甲酸及其烷基衍生物不同组分处理效果,并进行优化.结果 表明,在温度100～105℃、苯甲酸/颜料质量比0.8、时间6h的最优化工艺条件下,C.I.颜料绿7商品收率约99％,苯甲酸回收率达95％,与现有工艺GF311商品相比,在水...     

C.I.颜料绿7重结晶颜料化工艺

对C.I.颜料绿7进行了溶剂法重结晶颜料化工艺研究,并考察了溶剂、温度及时间等条件对重结晶颜料粗品的影响.最佳工艺条件为:邻乙基苯甲酸作溶剂、溶剂与颜料比1∶1、反应温度100℃,时间7h,再经水解、过滤、洗涤、干燥处理.结果显示,该工艺得到的颜料与现有工艺GF311商品相比,水性应用着色力为111.04％,饱和度为+...     

无机包核改性C.I.颜料橙13的制备及性能研究

以3种无机纳米材料(海泡石、钛白粉和硫酸钡)为无机核,采用无机包核法对C.I.颜料橙13进行了改性制备,对改性前后颜料结构、颜色性能和粒径大小与分布,以及在紫外灯加速老化条件下的耐光性进行分析.结果 表明:有机颜料粒子通过沉积吸附和表面包覆等形式,与3种无机核形成了复合结构.海泡石的添加对改性颜料粒径大小与分布起到较好...     

C.I.颜料红48系列色淀颜料的应用进展

综述了C.I.颜料红48系列色淀颜料在塑料、印刷油墨、粉末涂料、喷墨墨水、静电照相滤光片等领域的应用。随着应用领域的不断拓宽,对其提出了更高的性能要求,通过颜料的表面改性可提高颜料的应用性能。有22篇参考文献。     

The Polymorphism of C.I. Pigment Yellow 5

Department of Physics Brunei University Uxbridge Middlesex UB8 3PH By interpretation of X-ray diffraction patterns it has been found that C. I. Pigment Yellow 5 (α-[1-hydroxy-ethylidene\acetanilide-α-azo-\2′;-nitrobenzene]) is dimorphic, both forms being available commercially. The single-crystal data and X-ray powder pattern are reported for one form (termed α) and the powder pattern has been indexed from the single-crystal unit cell dimensions. The second form (β) has only been obtained as a powder, and the powder pattern is reported. This form changes to the α-form by recrystallisation from toluene.     

Crystal Data for C.I. Pigment Yellow 3

The single-crystal data and X-ray powder pattern are reported for C.I. Pigment Yellow 3 (α-[1-hydroxyethyl-idene] acet-2-chloro-anilide-α-azo- [4′-chloro-2′-nitrobenzene]). The powder pattern has been indexed from the single-crystal unit cell dimensions; the problems of multiple indexing have been reduced by comparing the data obtained with single-crystal intenstities.     

Crystal Data for C.I. Pigment Yellow 98

The single–crystal data and X–ray powder pattern are reported for C. I. Pigment Yellow 98 (α-(1-hydroxyethyl-idene) acet-2–methyl–4–chloroanilido–α-azo–(4–chloro–2′-nitrobenzene)).The powder pattern has been indexed from the cell dimensions given by the single–crystal measurements; the problems of multiple indexing have been reduced by comparing the powder data with observed single–crystal intensities.     

Crystal Data for C.I. Pigment Yellow 65

The single-crystal data and X-ray powder pattern are reported for C.I. Pigment Yellow 65 [|α-(1-hydroxy-ethylidenejacet-2-methoxy-anilide-α-azo-(4′-methoxy-2′-nitrobenzene)]. The powder patter has been indexed from the cell dimensions given by single crystal measurements; by problems of multiple indexing have been reduced by comapring the powder data with observed single-crystal intensities.     

Crystal Data for C.I. Pigment Yellow 74

The single-crystal data and X-ray powder pattern are reported for C. I. Pigment Yellow 74 [α-(1-hydroxy-ethylidene)acet-2-methoxyanilide-α-azo-(2′-methoxy-4′-nitrobenzene)]. The powder pattern has been indexed from the cell dimensions given by single-crystal measurements; the problems of multiple indexing have been reduced by comparing the powder with observed single-crystal intensities.     

Preparation and characterization of styrene-acrylic resin encapsulated C.I. Pigment Yellow 17 and charge control agent multicomponent particles

Styrene-acrylic resin encapsulated C.I. Pigment Yellow 17 (PY17) and charge control agent (CCA) multicomponent composite particles were prepared by mini-emulsion polymerization. The characterization results of transmission electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis, and centrifugal sedimentation experiments all verified the encapsulation of PY17 and CCA. The effect of PY17 and CCA dosages on the morphology of multicomponent particles and influence of compound emulsifier dosage on the emulsion stability and the dispersity of latex particles were studied. When the mass fractions of monomers, PY17, CCA, and compound emulsifiers relative to deionized water were 5, 0.4, 0.1, and 0.375%, respectively, the emulsion showed excellent stability; meanwhile, the latex particles had a clear core–shell structure and the best dispersity. The average size of the multicomponent particles changed slightly with the different dosages of PY17, CCA, and compound emulsifiers. Colorimetric analysis of the samples indicated that encapsulation of PY17 may lead to a decrease in yellow value b* but had little effect on its tinctorial strength.     

C.I.颜料黄74制备原位聚合颜料分散体的染色性能研究

为了减少粘合剂对环境的污染,以合适的软单体和硬单体,过氧化苯甲酰为热引发剂,应用C.I.颜料黄74来制备原位聚合颜料分散体。通过原位聚合的方法使单体聚合并将C.I.颜料黄74固着在织物表面上。研究了超声波粉碎时间和次数、两类单体的配比、引发剂用量、颜料用量对摩擦色牢度的影响。结果表明,硬单体和软单体的比例为7∶3,引发...     

C．I．颜料红57：1的新制备方法

本文提出一种C.I.颜料红57:1的制备方法,其特征在于,使4B酸在pH＜2及温度＜30℃的条件下重氮化,然后与2,3酸偶合,以氧化钙为原料制备的钙离子悬浮液作为偶合色淀原料及调节pH＞10的条件下,偶合盐析制备C.I.颜料红57:1.根据本方法,可以不使用碎冰设备和较低的反应温度、工艺简便、成本廉价地制备C.I.颜料红57:1.且本方法制备的C.I.颜料红57:1比采用传统方法制备的产品具有更高的透明度和着色力.     

上海双龙混合设备制造有限公司总经理 李臣浩——领军“专业品质”扩大“海外市场”

本文介绍了一种苝系颜料的颜料化加工方法,采用干式球磨法,在有助磨剂、分散剂、有机溶剂及固体有机酸存在下球磨5～6小时,球磨结束以后,将球磨料倒入含表面活性剂的酸性的水介质中沸煮1～2小时,经过滤、水洗、干燥得苝系颜料成品.采用本文所说的颜料化加工方法所获得的颜料成品,其色光鲜艳、着色力高,在应用介质中易分散.     

溶剂对C.I.颜料黄147结晶性能的影响

以X-衍射为分析手段研究了溶荆对C．I．颜料黄147结晶性能的影响。结果表明：在颜料合成中以硝基苯为溶剂时，在2θ=23-28范围内其衍射峰高于邻二氯苯溶剂，结晶度和颜料性能更好；在后处理中使用极性溶剂DMF比使用非极性溶剂二甲苯更有利于结晶体发育和提高结晶度．