Viscose filtering resistance detection method

A detection method and viscose technology, which is applied in the textile field, can solve the problems of large error in the final result, low detection stability, and influence on the detection result, and achieve high accuracy, facilitate promotion and implementation, and low manufacturing cost.

Active Publication Date: 2013-07-17
YIBIN GRACE GROUP CO LTD
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Problems solved by technology

The results measured by this method are rough and the accuracy is not high, because it is filtered under normal pressure, so the impurities on the filter screen have a great influence on the final result. At the same time, it is necessary to manually remove the viscose from the upper plastic Pour into the tube, the speed and method of pouring the viscose will also affect the test results, resulting in large errors in the final results and low test stability

Method used

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  • Viscose filtering resistance detection method

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Embodiment Construction

[0020] The viscose filter resistance detection method adopts a viscose filter resistance measuring device for measurement. The device includes a cylinder 1 with a top opening, a sealing cover 2 installed at the opening of the cylinder 1, and a bottom of the cylinder 1. Jacket water outlet 3, jacket water inlet 4 and compressed air inlet 5 are opened on the upper part of cylinder body 1, pressure measuring gauge 6 and viscose tube 8 with valve 7 are connected to the sealing cover 2, the viscose tube One end of 8 extends into cylinder 1, and the other end of viscose tube 8 is covered with filter 9; said filter 9 includes filter cloth 10 and stainless steel wire mesh 11 supporting filter cloth 10;

[0021] The specific detection steps are as follows:

[0022] A. Remove the sealing cover 2 at the opening of the cylinder body 1, add viscose into the cylinder body 1, then cover the sealing cover 2 to seal it, and feed air into the compressed air inlet 5 on the cylinder body 1, and c...

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Abstract

The invention discloses a viscose filtering resistance detection method, which includes the following steps of firstly, adding 2-3L of viscose into a cylinder, closing the cylinder, leading air into a compressed air inlet and applying constant pressure, opening a valve of a viscose tube, feeding the viscose through a filter screen while timing, and measuring viscose flow P1 after three minutes; secondly, retiming and measuring viscose flow P2 after six minutes; and finally calculating the viscose filtering resistance Kw according to the formula:{(2-P2 / P1) / (P1+P2)}X100000X0.6. The detection results can reflect internal performance of viscose indirectly and have fine reproduction property. The viscose filtering resistance detection method is high in efficiency and accuracy.

Description

technical field [0001] The invention relates to the field of textile technology, in particular to a method for detecting viscose filter resistance. Background technique [0002] Viscose refers to cellulose sulfonate made from pulp used for viscose fiber production after alkali impregnation, pressing, crushing, aging and sulfonation. The viscose Kw value (filter resistance) refers to the quality index of the pulp itself. The Kw value of the pulp directly affects the spinnability of the prepared viscose. To measure the Kw value of the pulp, it is necessary The pulp can only be measured after it has been made into viscose. Therefore, measuring the Kw value of viscose (filter resistance) is an important indicator to measure the spinnability of viscose. If the Kw value of viscose is high, the spinnability will be poor, and the nozzle will be easily blocked during the spinning process. Therefore, it is of great significance to accurately measure the Kw value of viscose for the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N11/04G01N5/00
Inventor 徐发祥黄俊马志强
Owner YIBIN GRACE GROUP CO LTD
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