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Method for detecting sizing percentage of slashing by applying near-infrared spectrum technology

A technology of near-infrared spectroscopy and technical detection, which is applied in the field of detection of sizing rate of sizing yarn, and can solve problems such as unreported

Inactive Publication Date: 2009-06-03
TIANJIN POLYTECHNIC UNIV
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Problems solved by technology

In view of this, the application of near-infrared technology in the field of sizing rate detection has not yet achieved practical progress. At present, the sizing rate detection system of foreign and domestic sizing equipment mainly adopts the material balance method, humidity measurement combined with the size concentration method. The practical technology of sizing rate detection by near-infrared detection method has not been reported yet

Method used

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  • Method for detecting sizing percentage of slashing by applying near-infrared spectrum technology

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Embodiment

[0030] Example: Near-infrared detection of pure cotton yarn sizing rate

[0031] 1. Warp sample collection:

[0032] In order to establish the near-infrared calibration model of warp sizing rate, firstly, pure cotton warp yarn samples of different specifications were collected. The sample set includes five kinds of pure cotton single yarns with a fineness of 9.7tex, 14tex, 23tex, 28tex, and 32tex. The yarns are package yarns processed on automatic winding machines, and they come from different batches of products from three different cotton spinning enterprises. .

[0033] 2. Sizing selection and mixing:

[0034] Choose the mixed size with grafted starch and PVA as the main size, the mixing ratio is 100:50, 100:20 respectively, the former is used for warp sizing of low special (9.7tex, 14tex), the latter is used for medium high special (23tex) , 28tex, 32tex) warp sizing.

[0035] 3. Sizing:

[0036] The sizing operation is performed on the warp yarns on the digital autom...

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Abstract

The invention relates to a method for detecting sizing percentage of slashing by applying the near-infrared spectrum technology, in particular to the Fourier-based near-infrared spectrum analysis technology. Slashing test specimen is prepared by special sample collection preparation method, and a slashing sizing percentage calibration model is established by combining with chemo-metrics methods, thus detecting the sizing percentage of slashing on line rapidly without any loss.

Description

technical field [0001] The invention relates to a method for detecting the sizing rate of sizing yarn by using near-infrared spectrum technology, in particular to a rapid, non-destructive and on-line detection technology for the sizing rate of sizing yarn. Specifically, it is a technology that uses near-infrared spectral analysis technology and equipment, combined with chemometric methods, to conduct online non-destructive testing of unknown sizing samples through the calibration model established by the experimental research. The ideas, techniques and methods involved in the present invention can be used for on-line detection of sizing rate in the sizing process, and can also be used in the fabric post-processing and post-finishing process to check other related parameters such as coated fabric coating Content, fabric mercerization, etc. Background technique [0002] Sizing is an important process in the weaving preparation process. The purpose is to saturate and cover the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/17
Inventor 傅宏俊马崇启吕汉明陈娇娇
Owner TIANJIN POLYTECHNIC UNIV
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