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Import and export textiles--Determination of capillary effect--Dynamic test method
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Basic data
| Standard ID | SN/T 4667-2016 (SN/T4667-2016) |
| Description (Translated English) | Import and export textiles--Determination of capillary effect--Dynamic test method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | W55 |
| Word Count Estimation | 10,184 |
| Date of Issue | 2016-12-12 |
| Date of Implementation | 2017-07-01 |
| Regulation (derived from) | State-Quality-Inspection-Accredidation (2016) No.590 |
| Issuing agency(ies) | General Administration of Customs |
SN/T 4667-2016: Import and export textiles--Determination of capillary effect--Dynamic test method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Dynamic test method for determination of capillary effect of textile)
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Determination of capillary effect of import and export textiles
Dynamic test
Released on December 12,.2016
2017-07-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Zhejiang Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Zhejiang University of Science and Technology.
The main drafters of this standard. Xie Weibin, Wu Hao, Zhou Ying, Zhao Shanhong, Zhou Xiaohong, Zhan Yongjuan.
Determination of capillary effect of import and export textiles
Dynamic test
1 Scope
This standard specifies methods for determining the capillary effect of textiles using digital instruments.
This standard applies to the determination of the capillary effect of woven fabrics and their textile products.
This standard does not apply to filaments, yarns, ropes, staple fibers.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6529 Standard atmosphere for textile conditioning and testing
GB/T 6682 Analytical laboratory water specifications and test methods
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Capillary effect
One end of the textile material is wetted by the liquid, and the liquid is transported along the capillary along the textile material.
3.2
Liquid wicking height liquidwickingheight
The measure of the capillary effect of the test material, that is, when one end of the vertically suspended textile material is wetted by the liquid, the liquid acts through the capillary, in one
The height of the rise along the textile material over a given period of time.
3.3
Liquid wicking rate liquidwickingrate
The measure of the capillary effect of the test material, that is, the liquid wicking height achieved by the liquid through capillary action and on the textile material per unit time.
4 Principle
The sample is suspended vertically in the instrument, one end of which is immersed in the liquid, and the image collected by the camera is wet-transferred, and the image is pre-processed.
After processing, the image information is converted into gray value, and the water trace area and the dry area of the fabric liquid water transfer image are initially separated, and then subjected to image segmentation,
After the morphological processing of the image, the number of pixels corresponding to the watermark area is counted, the wicking height value of the fabric is calculated, and the time-liquid is utilized.
The body rise height curve finds the wicking rate at a certain time.
5 instruments and materials
5.1 Capillary effect test instrument. It consists of image acquisition device, vertical wicking experimental device and testing constant temperature and humidity environment.
Has a stable and uniform light source.
Note. Refer to Appendix A for instrumentation and parameters.
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