丽赛纤维的结构及染色性能研究.doc

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硕士学位论文
丽赛纤维的结构及染色性能研究
Research on the configuration and Capability of
Dyeing of Richcel Fiber
指导教师
学科专业名称纺织化学与染整工程
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摘要
丽赛纤维是一种再生纤维素纤维,是具有高聚合度、高强度和高湿模量的新型粘胶短纤维的总称。丽赛纤维是由高纯度精制木浆生产的一种高湿模量再生纤维素纤维。生产原料主要来源于日本进口的天然针叶树精制专用木浆,生产技术采用日本东洋纺专有特种工艺纺丝技术。本论文主要研究丽赛纤维的结构以及染色性能。
本论文测试了丽赛纤维的物理结构,包括横截面和纵面、化学组成、结晶度和取向度以及热性能;采用直接性及平面性较好的直接染料研究丽赛纤维的染色动力学和热力学;分别采用不同类型活性染料对丽赛纤维进行染色,通过测定上染百分率、固色率、皂洗牢度等,并与粘胶纤维比较,进而分析其染色性能。通过实验得到了以下主要结果:
,表面光滑,化学组成与粘胶纤维差别不大,结晶度和取向度都高于粘胶纤维,具有较好的热稳定性。
,且染料对丽赛纤维的吸附等温线完全符合弗莱因德利胥(Freundlich)吸附等温线经验式,这是纤维素纤维吸附染料的典型模式,说明具有与粘胶纤维类似的染色热力学性能。
3. 采用三种类型活性染料对丽赛纤维和粘胶纤维进行染色后,丽赛纤维用X型活性染料染色的效果较粘胶纤维略好,但差别不大;采用中温型的活性染料染色后其上染百分率较粘胶纤维有比较明显的提高;而用K型活性染料染色后的效果最不理想,较粘胶纤维的上染百分率低。因此,丽赛纤维比较适用中温型活性染料对其进行染色。
、温度、盐和碱剂的影响较大,实际操作中应特别注意控制。
关键词:丽赛纤维;结构;染色动力学;热力学;活性染料;
Study on the Structure and Dyeing Properties of Richcel fibers
Abstract
Richcel fiber is a kind of regenerated cellulose fiber, is the high degree of polymerization, high strength and high wet modulus new viscose fiber’s general name. Richcel fiber is a kind of regenerated cellulose fiber with high wet modulus which is been produced by refined virgin wood pulp with high purity. It’s raw material e from the refined virgin wood pulp of natural conifer, and it’s production technologies adopt the knowhow of Toyobo of Japan. In this paper, the structure of Richcel fiber was first characterized, and then its dyeing properties and dyeing mechanism were studied in detail.
In this paper, Richcel fiber’s physics structure is been studied, include the cross section and portrait configuration, the positions, crystalline and orientation, thermal properties and so on; direct dye with good flatness and substantivity is been made use of in order to research the dyeing dynamics and thermodynamics of Richcel fiber; respectively use different kinds of reactive dyes dyeing Richcel fiber, by means of exterminating of dy