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A method for detecting the purity of reconstituted tobacco leaf coating liquid based on compound washing technology

A technology of reconstituted tobacco leaves and detection methods, applied in tobacco, tobacco processing, tobacco preparation, etc., can solve the problems that the measured data cannot faithfully reflect the real level, the screen is easy to block, and the filtering effect is not good, so as to improve the solid-liquid Separation effect, less sampling amount, and easy implementation

Active Publication Date: 2021-11-05
HUBEI CHINA TOBACCO IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are several problems in this method: one is that the sieve is easily blocked and the filtering effect is not good; the other is that the solid content of the coating liquid after filtration is higher than that before filtration; Soluble and oil-soluble coating fluids lead to measured data that cannot faithfully reflect the true level

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 of the present invention provides a method for detecting the purity of reconstituted tobacco leaf coating liquid based on composite washing technology, comprising the following steps:

[0022] (1) Dilute the reconstituted tobacco leaf coating solution with water 6 times (by weight), weigh two samples of the diluted coating solution with a mass of a gram and b gram respectively, and put the two samples into two dried In the No. 1 and No. 2 centrifuge tubes with constant weight, the mass of the No. 1 centrifuge tube is c grams, and the mass of the No. 2 centrifuge tube is d grams;

[0023] (2) Put the No. 1 and No. 2 centrifuge tubes containing the diluted coating liquid sample in the above step (1) into the sleeve of the centrifuge respectively;

[0024] (3) Set the operating parameters of the centrifuge, the centrifugation time is 5 minutes, the speed is 4000 rpm, and the safety cover is closed, and the centrifuge is started;

[0025] (4) After the centrif...

Embodiment 2

[0033] Embodiment 2 of the present invention provides a method for detecting the purity of reconstituted tobacco leaf coating liquid based on composite washing technology, comprising the following steps:

[0034] (1) Dilute the reconstituted tobacco leaf coating solution with water 10 times (by weight), weigh two samples of the diluted coating solution with a mass of a gram and b gram respectively, and put the two samples into two dried In the No. 1 and No. 2 centrifuge tubes with constant weight, the mass of the No. 1 centrifuge tube is c grams, and the mass of the No. 2 centrifuge tube is d grams;

[0035] (2) Put the No. 1 and No. 2 centrifuge tubes containing the diluted coating liquid sample in the above step (1) into the sleeve of the centrifuge respectively;

[0036] (3) Set the operating parameters of the centrifuge, the centrifugation time is 8 minutes, the speed is 3000 rpm, and the safety cover is closed, and the centrifuge is started;

[0037] (4) After the centri...

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PUM

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Abstract

The invention provides a method for detecting the purity of the reconstituted tobacco leaf coating liquid based on the composite washing technology. The invention firstly dilutes the coating liquid to reduce the viscosity of the liquid and improve the solid-liquid separation effect in the centrifugation process; In the process, the precipitation is first washed with clean water, which can minimize the impact of the water-soluble components entrained in the wet precipitation on the accuracy of the results; then the precipitation is washed with absolute ethanol, which can minimize the impact of the alcohol-soluble components entrained in the wet precipitation on the accuracy of the results. The impact on the accuracy of the results; finally, the precipitation was washed with ether, which can minimize the impact of the oil-soluble components entrained in the wet precipitation on the accuracy of the results. The detection method of the invention is simple, easy to implement, less in sampling amount and accurate in result.

Description

technical field [0001] The invention relates to the technical field of papermaking reconstituted tobacco leaves, [0002] In particular, the present invention relates to a method for detecting the purity of reconstituted tobacco leaf coating liquid based on composite washing technology. Background technique [0003] Domestic papermaking reconstituted tobacco leaves are usually produced by a two-step method. First, the active ingredients of the tobacco are fully soaked in a solvent, and then the tobacco extract is concentrated and backfilled on the tobacco substrate. The key production processes include extraction, concentration, pulping, Copying, coating and other processes. At present, the purity of the coating solution is indirectly characterized by the slag content rate. The detection method is to directly filter through an 80-mesh stainless steel screen, and then use the difference between the solid content of the coating solution before and after filtration as the slag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B3/14A24B3/12A24B15/18
CPCA24B3/12A24B3/14A24B15/18
Inventor 胡念武罗广丰刘雄斌汪丹童宇星乐喜
Owner HUBEI CHINA TOBACCO IND