织物喷雾上浆雾化质量评价

doi:10.13475/j.fzxb.20200804808

摘要/Abstract

摘要：

为衡量织物喷雾上浆工艺参数配置的合理性,对织物喷雾上浆雾化质量进行了量化。首先介绍了织物上浆液的特性,给出浆液雾化流场图像的获取方法和预处理过程;然后计算了雾化流场喷雾角和喷雾图像相似度,评价浆液雾化流场的稳定性;最后,以相对喷嘴同一位置处的局部喷雾图像为计算区域,计算雾化粒径并统计雾化粒子数量,分析了液滴颗粒的分布,评价了浆液雾化流场的均匀性。结果表明:浆液雾化流场的稳定性评价和均匀性评价,从不同尺度量化了织物喷雾上浆雾化质量,揭示了高黏度浆液的稳定运动状态;通过探究入射在织物表面的浆液小液滴的大小及其分布,为织物喷浆工艺参数的微量调整、织物喷浆质量的在线评价提供参考。

关键词: 喷雾上浆, 雾化质量, 织物上浆液, 流场稳定性, 流场均匀性

Abstract:

The quality of atomization is important to determine the suitability of process parameters in fabric spray sizing. In order to quantify the atomization quality of fabric sizing, the characteristics of fabric sizing liquid were first introduced, followed by description of the image acquisition method and pretreatment process in the process of fabric sizing. Spraying angles and the similarity among the continuous images were calculated for the stability evaluation of slurry atomization field. Taking the local spray images as the calculation areas which were at the same location relative to the nozzle, droplet diameters were calculated, numbers of atomized particles were counted, and drop-size distribution were analyzed to assist the uniformity evaluation of spray sizing atomization field. Results show that the stability and the uniformity evaluations of the atomized flow field are able to quantify the atomization quality of fabric spray sizing from different scales, revealing the steady motion state of the high viscosity slurry and exploring the size and distribution of the sizing liquid droplets on fabric surfaces. It provides a basis for the micro-adjustment of fabric spraying parameters and the possibility for on-line evaluation and monitoring of fabric spraying quality.

Key words: spray sizing, atomization quality, fabric sizing liquid, stability of flow field, uniformity of flow field

中图分类号:

TS101.9

王博文, 林森明, 岳晓丽, 钟毅, 陈慧敏. 织物喷雾上浆雾化质量评价[J]. 纺织学报, 2021, 42(12): 90-96.

WANG Bowen, LIN Senming, YUE Xiaoli, ZHONG Yi, CHEN Huimin. Evaluation of atomization quality on fabric spray sizing[J]. Journal of Textile Research, 2021, 42(12): 90-96.

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图序号	相对尺寸范围Δs	发散边界Δb
图10(a)	0.866 5	1.167 9
图10(b)	0.886 5	1.167 9
图10(c)	1.180 7	1.549 5
图10(d)	0.875 0	1.258 6