Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (12): 104-108.doi: 10.13475/j.fzxb.20181203005

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Deodorizing effect of polyester fabric treated by citric acid/β-cyclodextrin

DAI Yue1, ZHANG Ruiping1(), WANG Qiuping1, HU Ya'nan1, ZHANG Xianguo2   

  1. 1. College of Textile and Clothing, Nantong University, Nantong, Jiangsu 226019, China
    2. Jiangsu Shunyuan New Materials Technology Co., Ltd., Nantong, Jiangsu 226500, China
  • Received:2018-12-12 Revised:2019-08-16 Online:2019-12-15 Published:2019-12-18
  • Contact: ZHANG Ruiping E-mail:zhang.rp@ntu.edu.cn

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Abstract:

In order to develop polyester fabrics with deodorizing function, β-cyclodextrin (β-CD) was used as the deodorant, and the anchored polyester fabric was studied with the ammonia elimination value as an indicator. The deodorizing effect of β-CD, citric acid (CA) and deodorizing time on the deodorizing effect of finishing fabrics were analyzed. The water wash resistance of the deodorized fabric was tested. The scanning electron microscopy and infrared spectrometer were adopted to characterize the polyester fabric before and after finishing. The results show that the maximum anchorage of β-CD in the experimental range is 57.36 mg/g. The β-CD (mass concentration is 60 g/L) anchoring fabric has the combined ammonia elimination time of 14 h and the ammonia elimination value of 4.442 5 mg/g. After 15 cycles of washing, the ammonia elimination value of the fabric is 64 times of the unfinished fabric, and the washing resistance is good. The polyester fiber surface has the obvious loading of β-CD, and the oxygen element content increases significantly. The infrared spectra indicates an increase in the hydroxy content of the fiber after finishing.

Key words: β-cyclodextrin, citric acid, polyester fabric, deodorization finishing

CLC Number: 

  • TS195

Fig.1

Effect of CA dosage on ammonia elimination"

Tab.1

Effect of β-CD dosage on fabric anchorage"

β-CD质量浓度/
(g·L-1)		 锚固量/
(mg·g-1)
20 10.89
40 22.51
60 39.70
80 48.53
100 57.36

Fig.2

Reaction formula on dehydration of citric acid to form acid anhydride"

Fig.3

Esterification of acid anhydride and β-CD"

Fig.4

Formation reaction of citric acid/β-CD polymer"

Fig.5

Effect of β-CD dosage on ammonia elimination value of finished fabric"

Fig.6

Change of relationship between time and ammonia elimination value before and after finishing fabric"

Fig.7

Washable effect of β-CD finished fabric"

Fig.8

SEM images of before (a)and after (b) fabric finishing(×5 000)"

Tab.2

Elements content of fibers surface before and after finishing%"

元素 质量分数 原子分数
整理前 整理后 整理前 整理后
C 56.53 58.69 76.88 71.49
O 20.81 30.28 21.24 27.69
Au 22.67 11.04 1.88 0.82
总量 100.00 100.00 100.00 100.00

Fig.9

Infrared spectra of polyester fabric before and after finishing"

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