共查询到19条相似文献,搜索用时 135 毫秒
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为开发更为环保的儿童专用颜料,尝试以聚乳酸纤维为基础制备一种儿童专用的环保颜料,聚乳酸纤维具有较强的生态环保性,将其应用于儿童颜料中可以有效降低颜料本身给儿童带来的健康威胁。对儿童环保颜料聚乳酸纤维原液的制备思路进行分析,以实验方式对这种原液的着色综合性能进行研究。结果表明,该原液母粒着色性能、着色效果、着色稳定性等均较为理想,与一般市售颜料原液相比可以提供更好的综合着色性能。 相似文献
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综述了聚酯纤维原液着色的技术研究进展及其应用领域。原液着色聚酯纤维主要采用色母粒法和色浆法生产;色母粒法加入方式有色母粒与切片混合法和熔体直纺在线添加法;色浆法是将着色剂、颜料/染料、分散剂、溶剂等混合,以液态色浆形式添加生产原液着色纤维的方法,主要在聚合和纺丝过程中添加;原液着色聚酯纤维主要应用在服装、家用、产业用、装饰面料等领域;与常规聚酯纤维染色法相比,聚酯纤维原液着色技术具有工艺简单、绿色环保、产品颜色均匀、色牢度好等优点;研究高品质色母粒的制备和添加技术以及开发分散性能好的色浆是未来原液着色技术的发展趋势。 相似文献
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本文研究了砂磨色浆和色粉浆PVA-CuSO_4着色原液的流变性、过滤性和稳定性,并对色粉浆的制备、加料顺序以及分散状况进行了探讨。实验证明:采用该着色原液凝胶化纺丝,可获得有色中空维纶,为中空维纶原液着色提供了依据。用气流粉碎至1~2μm的颜料直接配制色粉浆,运输储存方便,合理可行。 相似文献
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以纺丝级聚酰胺(PA)6为载体树脂,酞菁蓝9680,K7090,BGSP–3SD为颜料,A–C540A,AClyn295A,A–C6A为分散剂制备纤维用蓝色母粒,并将制得的蓝色母粒用于PA6着色。用Datacolor测色仪测定材料的着色性能,用光学显微镜观察颜料的分散性,研究了三种颜料及三种分散剂对PA6纤维母粒色彩性能及分散性的影响。结果表明,三种颜料的着色力度相差不大,其中酞菁蓝9680分散相对较好;分散剂A–C540A相对更适用于PA6纤维原液着色,当其添加量为7%时,着色力达到119.73%,着色性能提高显著。 相似文献
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Liping Zhang Hao Dong Min Li Dong Wang Mingming Liu Chunxia Wang Shaohai Fu 《应用聚合物科学杂志》2020,137(23):48784
Dope dyeing is a clean method to produce a color polylactic acid (PLA) fiber. In order to investigate the influence factors of dope dyed PLA fiber, three kinds of PLA modified carbon black (PLA-g-CB) pigments with different particle size were prepared by open-ring polymerization method, which were further used for dope dyed black PLA fiber. The resultant black fiber was characterized by TEM, SEM, and DSC. The effect of particle size and concentration of PLA-g-CB pigments on color, mechanical property, and crystallization behavior of dope dyed PLA fiber were studied. Dope dyed black PLA fiber reached its good color property including K/S and leveling property when PLA-g-CB (I) pigment was the colorant with a concentration of 1.5%. Moreover, the dope dyed black PLA fiber containing PLA-g-CB (I) pigment had high breaking strength, crystallinity, fastness, and migration resistance to water and ethanol. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137, 48784. 相似文献
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分析了间位芳香族聚酰胺的结构及其染色性能,探讨了间位芳香族聚酰胺有色纤维的制备工艺。并从改变分子结构、对纤维表面改性和改变染色工艺3个方面,介绍了国内外在间位芳香族聚酰胺纤维染色方面的研究进展,其中表面改性法主要有:紫外线辐射预处理法、液氨预处理法、等离子体预处理法和PE045-MeDMA预处理法;改善染色工艺的主要方法有:真空减压染色法、平幅连续快速染色法、载体染色法等。同时介绍了原液着色方法制备间位芳香族聚酰胺有色纤维的工艺与条件。 相似文献
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着色剂的加入是否会影响Lyocell绿色生产工艺和溶剂的回收利用是原液着色Lyocell纤维实际生产面临的问题。选用炭黑作为黑色颜料,研究了炭黑在NMMO溶液中的分散性,分析了不同炭黑添加量的溶液特性、纤维的可纺性和纺丝条件,用X射线衍射法分析了纤维的基本结构和性能的关系。着重采用红外光谱、紫外光谱分析了炭黑对溶剂NMMO的影响,用紫外光谱研究了炭黑在纺丝成形和纤维使用过程中的迁移量。结果表明:整个纺丝成形过程中炭黑没有发生迁移,炭黑的添加不影响溶剂的回收利用;制得的原液着色Lyocell纤维色牢度高;随着炭黑添加量的增大,纤维结晶度会有所降低,纤维强度略有下降,但依然满足服用要求。 相似文献
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利用旋转流变仪研究了聚芳砜酰胺(PSA)纺丝液的稳态和动态流变行为,结果表明:以二甲基乙酰胺(DMAc)为溶剂的聚芳砜酰胺溶液表现出典型的聚合物浓溶液流变特性,在低剪切速率区表现为牛顿流体特性,而随着剪切速率的增大,呈现出切力变稀行为,纺丝液的零切黏度、松弛时间随PSA特性黏度的增大而增大,非牛顿特性增强;证明了PSA纺丝溶液在测试温度范围内处于均质溶液状态,在进一步的动态温度扫描分析中,没有发现溶液的凝胶化转变现象,说明在试验温度范围内,PSA纺丝液处于均质稳定状态。 相似文献
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Wenying Shi Xianhua Zeng Hongbin Li Haixia Zhang Xiaohong Qin Rong Zhou 《应用聚合物科学杂志》2020,137(15):48569
In order to obtain the compatible poly(p-phenylene terephthalamide) (PPTA)/polyvinylidene fluoride (PVDF) blend membranes, the casting solution was synthesized via the in situ polycondensation process and flat sheet blend membranes were successfully prepared through the immersion precipitation phase inversion method in our previous study. In this study, the polycondensation solution was directly used as the spinning dope to fabricate PPTA/PVDF hollow fiber in-situ blend membrane by the dry-wet spinning technique. Hollow fiber membranes were employed to remove the dyes including Congo red (CR) and methylene blue (MB) from the dyeing liquor. Effects of operation conditions on dye rejection and membrane water flux were investigated. With the increase of operation pressure, feed concentration and feed temperature, dye rejection rates gradually decreased, but the rejection value of CR and MB still remained above 99.5%. On the contrary, the permeation water flux basically increased. During the continuous dye filtration of 300 min, hollow fiber membrane can maintain high dye rejection rates and stable water flux. The combination method of physical backwashing and chemical cleaning can effectively alleviate membrane fouling and recover membrane water flux. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020 , 137, 48569. 相似文献