摘要
为使染料与超临界二氧化碳染色具有更佳的上色率,合成一系列含4-硝基苯胺衍生的红色偶氮分散性染料。使用这些染料在超临界二氧化碳中对聚酯进行染色,并探讨不同碳数烷基、乙基和乙酰氧乙基、甲氧基在染料结构中对聚酯染色后的表观色浓度、染色坚牢度的影响。自行合成了7支分散性染料,染料1A^7A,产率均高于80%。研究发现,将长链烷基导入单偶氮染料的胺基中引起较大的红移效应,染料颜色从陈玫红变为暗岩蓝。自行合成的7支染料分别于超临界二氧化碳中对聚酯纤维进行染色,染色布样以耐水洗、耐水、耐汗(酸、碱)和耐摩擦色牢度等指标,按ISO和AATCC标准进行坚牢度评估。研究发现,在超临界二氧化碳染色中,染料2A、3A和5A第一次染色具有超过85%的染色相对上色率,即染料2A、3A和5A适用于聚酯织物的超临界二氧化碳染色。染色样品的耐水洗、耐水、耐汗和耐摩擦牢度性能都符合商业要求。
Supercritical carbon dioxide dyeing has become the mainstream of environmental protection. In order to make dyes and supercritical carbon dioxide dyeing have better color uptake, a series of red azo disperse dyes containing 4-nitroaniline with different alkyl lengths, acetylethyl, or methoxy groups were synthesized and used to dye polyester in supercritical carbon dioxide. The effect of different groups on the apparent color strength and fastness of polyester dyed fabric was discussed.Seven disperse dyes 1A^7A were synthesized,whose gield were above 80%. It was found that the long chain alkyl group was introduced into the amino group of the monoazo dye to cause a large redshift effect, so the dye color changed from old rose to dark slate blue. All dyes were dyed on polyester fiber in supercritical carbon dioxide and the dyed samples were evaluated for ISO and AATCC standards such as washing color fastness, water color fastness, perspiration (acid, alkali) color fastness and rubbing color fastness. The study found that in supercritical carbon dioxide dyeing, dye 2A,3A and 5A has more than 85% dye relative up-take at first dyeing. It means that dye 2A,3A and 5A are suitable for dyeing in supercritical carbon dioxide on polyester fabric. The color fastness result showed that the laundering, water, perspiration fastness and rubbing fastness properties of the dyed samples meet commercial requirements.
作者
林尚明
陈翰
黄茂全
姚薇华
李日正
LIN Shangming;CHEN Han;HANG Maochan;YAO Weihua;LEE Rizheng(Department of Materials and Textile,Oriental Institute of Technology,New Taipei City 22061,Taiwan,China)
出处
《纺织高校基础科学学报》
CAS
2019年第2期196-203,共8页
Basic Sciences Journal of Textile Universities
