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文章主要对热敏变色纺织品的检测方法展开探究,首先对热敏变色纺织品测试的整个过程进行分析,在热敏变色纺织品的检测实验中,其测试的过程及表征具有重要作用;然后从耐光色牢度、加热时间、温度变化、耐皂洗色牢度、变色完全度、变色效果、织物组织与成色效果方面对热敏变色纺织品的检测结果进行分析,旨在提升热敏变色纺织品的性能。 相似文献
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以荧烷染料ODB-2为隐色剂,双酚A为发色剂,十四醇为溶剂,制备了温敏变色复配物。以变色效果及色差ΔE为指标,探讨双酚A用量、十四醇用量、制备温度、制备时间对温敏变色复配物制备的影响。结果表明,单因素实验得到温敏变色复配物的优化制备工艺为:ODB-2、双酚A、十四醇的质量比为1∶2∶100,制备温度90℃,制备时间30 min;改变溶剂的种类,可以得到不同变色温度的温敏变色复配物;在温敏变色复配物中添加分散染料,升温时可以使之从黑色变为红色、黄色或蓝色;温敏变色复配物通过50次冷热循环耐疲劳测试,仍有较大的变色色差。采用红外光谱分析温敏变色复配物的变色机理。 相似文献
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水性聚氨酯在合成革后整理中的应用 总被引:1,自引:0,他引:1
以异氰酸酯和聚丙多元醇为原料合成了多种水性聚氨酯,并首次用于合成革的后整理。将成革的透氧气性、透湿性、低温耐曲折性、耐干湿擦性、耐老化性等,与溶剂型聚氨酯涂饰后的合成革进行了对比研究,结果表明:经水性聚氨酯涂饰的合成革的透氧量达到了4 583.53mg/cm~2·h,为溶剂型的1.5倍,且透水汽量达到了615.53mg/cm~2·h,约为溶剂型的8倍;低温曲折次数大于4万次,为溶剂型的2倍。采用水性聚氨酯替代传统的溶剂型聚氨酯完成合成革的后整理,成革性能优良,大幅度降低有机溶剂排放造成的环境污染,确保了合成革行业的可持续发展。 相似文献
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几种变色染料的变色机理以及在纺织品上的应用 总被引:7,自引:0,他引:7
介绍了几种常用的变色染料———光敏、热敏及湿敏变色染料的变色机理以及它们在纺织品加工中的应用情况。指出变色染料有着可观的发展前景和广阔的市场。并分别指出了光敏变色染料应在提高稳定性和耐光色牢度的基础上降低成本,热敏变色染料应该朝着低温、微胶囊化以及相应配套助剂的开发方向发展,湿敏变色染料应朝着产品种类的多样化和应用的广泛性方向发展。 相似文献
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光敏变色真丝印花绸的研制与生产 总被引:1,自引:0,他引:1
从光敏变色染料分子结构及性能入手,采用绿色环保型螺环类微胶囊变色染料及低温型粘合剂,通过特殊的作涂料印花工艺技术匹配,提高变色染料在真丝绸上的使用寿命和耐洗色牢度、耐摩擦色牢度、耐日晒色牢度,使光敏变色产在真丝绸上印花成为可能。 相似文献
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运用紫外-可见光吸收光谱等测试方法对合成变石样品的颜色特征进行了分析,初步研究了合成变石的致色元素及其质量分数对变色效应的影响。分析结果表明:合成变石常见的紫色调现象与吸收光谱中紫区未被完全吸收有关,通过添加少量有利于紫区吸收的致色元素,有望减弱合成变石的紫色调;随着V元素的增加,橙黄区吸收带的分布趋于合理,使红光与绿光的透过更趋平衡,有利于产生较理想的变色效应;合成变石的紫外-可见光吸收光谱与其结晶学方向有密切关系,(001)方向的吸收光谱在橙黄区有强吸收带,具有明显的变色效应特征,(100)和(010)方向虽有强二色性,但对变色效应贡献不大。 相似文献
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用正交试验法研究了用碱式氯化铝固色中各因素的影响。比较了染前加甲酸和氨水对革面着色深度的影响。用光学仪器对染色坯革表面着色深度进行检测,以CIE1976(L~*a~*b~*)色度空间及其色差公式评定革面着色情况。得出了能明显提高坏革表面着色深度的染色固色工艺。 相似文献
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Lalit M. Bal Abhijit Kar Santosh Satya Satya N. Naik 《International Journal of Food Science & Technology》2011,46(4):827-833
The effect of microwave power on colour change kinetics of bamboo shoot slices was investigated during microwave drying. Colour changes were quantified by tri‐stimulus Hunter L (whiteness/darkness), a (redness/greenness), and b (yellowness/blueness) system. These values were also used for calculation of total colour change (ΔE), chroma, hue angle, and browning index (BI). Microwave drying as expected changed colour parameters because of browning. The values of L and b decreased, while values of a and ΔE increased during drying. Mathematical modelling of colour change kinetics indicated that L, b, chroma and BI could be defined using a first‐order kinetic model, while a, ΔE and hue angle could be defined using a zero‐order kinetic model. Considering together colour deterioration and quality of dried bamboo shoot slices at higher power reveals the need of process standardisation for getting good quality product. 相似文献
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受到环境如光、热、潮气和大气污染、细菌侵蚀、(残留)化学药品如留在纤维上的润滑剂、荧光增白剂与盐(来自洗涤工序)或沾染的化学药品的影响可能是毛纺织品在生产、存储、运输或使用过程中产生色变的原因。本文解释了色变原因从而可估计损伤起因的分析方法。同时预测了毛纺织品色变趋势以及阻止色变的方法。 相似文献
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Some challenges in modern hair colour formulations 总被引:2,自引:0,他引:2
Wis-Surel GM 《International journal of cosmetic science》1999,21(5):327-340
Formulation of hair coloring product involves two stages, first a development of product base followed by formulation of desired shade. During that process a special consideration needs to be given to a whole range of product characteristics such as dye stability in the product medium, colour wearability on hair, light fading and finally rheology of the product. This paper reviews improvement in permanent coloring products as it relates to dye and base composition. Examples are shown where a reduction or elimination of certain dyes, m-phenylenediamine or sodium picramate, improves long term stability and product performance on hair. In cases when only reduction of the dyes was carried out, improvement in stability was achieved through their use as secondary colour contributors and not as primary ones. There are also other composition aspects that impact colour performance of the final product. For example, pH of the coloring mixture has a pronounced effect on the final colour developed in hair. It is shown that a shift in tonality caused by pH change can be predicted for finished product using a simple system composed of the main coupler-intermediate pair employed in the product. The colour response to pH change of this simple system was found to mirror that of the product. This predictability can be used as a formulation tool to develop more efficient dye systems. Effects of some functional materials on colour result such as propylene glycol, ascorbic acid or silicone are also shown. 相似文献
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棉用染料的耐氯浸牢度与应对措施 总被引:3,自引:0,他引:3
还原染料、活性染料、直接耐晒染料对棉的染色物,在含活性氯的水中,会发生变褪色。但是,不同结构的染料,其变褪色的程度不同。以盐素牢度提升剂处理,染料结构不同,其处理效果也大不一样。 相似文献
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