共查询到19条相似文献,搜索用时 562 毫秒
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针对茜草染料资源供应问题与金属媒染剂所造成的污染,采用茜草以及对使用过的茜草染料进行回收作为染料,4种环保媒染剂和2种金属媒染剂以3种不同的媒染方式对桑蚕丝织物进行染色,并与染料直接染色织物的染色性能进行对比,来探讨不同的媒染方式与媒染剂对茜草染色桑蚕丝织物的染色性能的影响以及回收茜草染料染色的可行性.实验结果表明:染色桑蚕丝织物在不同的媒染方式与媒染剂下,其颜色特征值不同,呈现出多种色调.相对于直接染色织物,媒染过后的桑蚕丝织物的染色性能得以提高,环保媒染剂在提高染色桑蚕丝织物的K/S值方面高于金属媒染剂;回收茜草染色桑蚕丝织物的K/S值高于茜草染色桑蚕丝织物,前者的K/S值最高可达12.08;媒染后,二者的耐摩擦色牢度、耐汗渍和耐皂洗沾色牢度可到达4~5级或5级. 相似文献
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从山竹壳中提取天然染料,并对真丝织物进行染色。研究了山竹壳天然染料对真丝的染色方法以及pH值、温度和硫酸钠用量对染色真丝织物K/S值的影响,对比分析了媒染剂种类和用量对媒染织物色牢度的影响。结果表明:与其他染色方法相比,后媒染方法染色织物的K/S值较高,表现出了一定的优势;山竹壳提取液染真丝织物的优化染色工艺为:pH值4,温度90℃,硫酸钠10g/L,时间为60min;优化媒染工艺为:硫酸铝钾相对织物质量分数为6%,硫酸亚铁相对织物质量分数为4%,后媒染时间30min。硫酸铝钾和硫酸亚铁的媒染真丝织物的日晒牢度达到了4级,皂洗牢度都达到了3~4级。硫酸亚铁媒染真丝织物的湿摩擦牢度为2~3级,干摩擦牢度为3级,硫酸铝钾媒染的真丝织物湿摩擦牢度为2级,干摩擦牢度为3级。 相似文献
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羊毛针织物天然艾蒿染料染色初探 总被引:1,自引:1,他引:0
以艾叶为原料提取艾蒿染料,用该染料对羊毛针织物进行染色,研究了染色工艺条件及媒染剂种类对染色性能的影响.结果表明,提取的天然艾蒿染料会因酸、碱及金属离子的加入而引起不同程度的色光及色深变化,染色以中性或弱酸性条件为宜.各种媒染刺均可不同程度的提高染色织物的K/S值和染色牢度.其中以铁盐媒染样品的色深值最高,为直接染色的3.9倍,锡盐媒染的牢度最佳,皂洗及摩擦牢度均达到4级.媒染剂对染色羊毛织物的色光影响显著. 相似文献
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稀土对姜黄天然色素上染丝绸的影响 总被引:1,自引:0,他引:1
文章采用姜黄天然色素对丝绸上染,用上染百分率和表观深度(K/S值)说明pH值、染色温度、染色时间以及电解质用量对上染效果的影响。再分别通过不同的媒染剂和媒染方法对丝绸进行媒染染色,确定染色工艺条件。实验发现媒染工艺可提高上染率和表观深度,采用富镧氯化稀土做媒染剂,及后媒染色工艺,其上染率比姜黄素直接染色提升27.53%,染色后丝绸试样耐洗色牢度3~4级,摩擦牢度4~5级,可满足生产和生活的需要。 相似文献
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研究了从樟树叶中提取的天然染料对蚕丝织物的染色性能。比较直接染色与媒染染色,选择硫酸亚铁、硫酸锌、明矾作为媒染剂,分析染色蚕丝织物的K/S值、L*值、C*值,直接染色的优化工艺为:染液5%(omf)、温度90℃、时间60 min、pH=4、浴比1∶25,最高K/S值为7.874。媒染染色明显提高了上染率,硫酸亚铁同浴媒染使K/S值最高升至22.512。采用媒染法染色后织物的耐皂洗色牢度、耐摩擦色牢度和耐日晒色牢度均有明显提高。 相似文献
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为丰富槐米色素和高粱红色素的染色色系,解决其染色色调偏少和配色困难的问题,对这2种染料在桑蚕丝织物上进行不同浓度配比的拼色研究。探讨了直接染色和媒染染色对染色性能的影响,测试了桑蚕丝织物的K/S值及染色牢度。结果表明:槐米色素和高粱红色素具有良好的拼色性能,染色桑蚕丝织物的色光、色深值随着染料浓度配比的变化呈现规律性变化,染色效果较好,可获得多种颜色。媒染染色进一步丰富了色泽,提高了桑蚕丝织物的染色深度和色牢度,各项色牢度均达到3级以上。 相似文献
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用自制阳离子明胶蛋白助剂改性CVC织物,探讨改性CVC织物对不同种类活性染料无盐染色的上染率、固色率和染色牢度的影响.结果表明,改性CVC织物染色性能改善显著,能获得比未改性CVC织物加盐染色时更高的上染百分率、K/S值及固色效率,耐洗色牢度增强,但耐摩擦色牢度略有下降;能实现活性染料无盐染色,提高染料利用率,大幅节约染料用量,减少染色废水的排放量和废水污染. 相似文献
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AbstractIn this research work, an attempt has been made to investigate the possibility of wool dyeing with natural dye extracted from the Cinnamomum camphora middle aged/mature leaves. Visually, a range of ecofriendly shades with quite different color gamut of varying hue and tone were produced via the application of different natural mordants. The effect of various natural mordants (gallnut, pomegranate peel, arjun bark, chlorophyll extract, and citric acid) and some commonly used metal mordants (ferrous sulfate, copper sulfate, stannous chloride, and sodium dichromate) on color and fastness properties of dyed wool samples was comparatively evaluated in conjunction with 50% (o.w.f.) of C. camphora natural dye. Dyeing experiments were performed with and without mordants employing pre-mordanting technique. The color of dyed wool fibers were investigated in terms of CIELab (L*, a*, and b*) and color strength values (K/S); and fastness properties were determined as per ISO standard test methods. In general, pre-biomordanted wool fibers with P. granatum (3, 4 and 5% o.w.f.), citric acid (5% o.w.f.) and chlorophyll extract (10–50% o.w.f.) showed comparable color and fastness results compared to those of metal treated samples. Durability of color was also checked to assess the effect of washing of dyed wool fibers. This research work on the use of ecofriendly biomordants will provide a valuable reference in future for ecological and environmentally safe dyeing. 相似文献
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An agroindustrial waste, outer green shell of almond fruit has been valorised as a novel natural dye using chemical solvent-free extraction, small amount of metallic mordants, one-bath biomordanted dyeing, ultrasonic medium, auxiliary-free dyeing and washing. The main objective of this study is to evaluate biomordants vs. metallic mordants depending on heating system both in extraction and dyeing and to reveal alternatives to metallic mordants. Effects of conventional- and ultrasound-assisted systems on dyeing and fastness properties were investigated. Wool fabrics dyed using metallic mordants (alum, iron II sulphate, copper II sulphate and potassium dichromate) were compared with the samples dyed in conjunction with biomordants [powder of valex (acorn of Quercus ithaburensis ssp. macrolepis), pomegranate (Punica granatum L.) rind, rosemary (Rosmarinus officinalis) and thuja (Thuja orientalis) leaves] in terms of colour yield, colour coordinates and fastness properties. Heating system had significant effects on dyeing and fastness results. Power ultrasound did not present any advantage in colour yield increment while it presented different effects on fastness values depending on mordant and process type of which ultrasound was applied. Some biomordants could be replaced with metallic mordants depending on their types and heating system. They could produce completely different colour gamuts just like metallic mordants. 相似文献
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针对茜草色素染色真丝织物的颜色特征受工艺条件影响较大的特点,通过测定染色织物的颜色特征值,分析媒染剂种类、媒染方式、pH值、染色温度、染色时间等因素对染色真丝织物性能的影响。试验结果表明,改变媒染剂种类及媒染方式,可以得到黄色、红色、紫色等多种颜色。以硫酸铝和硫酸亚铁为媒染剂,改变染色pH值能得到不同颜色,且K/S值随着pH值增大而下降;染色温度不改变染色织物的色相,K/S值随着温度升高而升高;染色时间对染色织物的色相和K/S值影响不大;最佳工艺条件下,染色真丝织物具有较好的色牢度,日晒色牢度4~5级,耐皂洗色牢度3~4级,耐汗渍色牢度3级以上。 相似文献