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Method for measuring lamina decrement difference value of content of paste-like ink volatile organic compound

A technology of organic compounds and measurement methods, applied in the field of slurry ink detection, to achieve the effects of improving detection efficiency, accuracy, and ensuring the operating environment

Inactive Publication Date: 2011-08-24
TIANJIN TOYO INK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned deficiencies, especially to propose a method for measuring the thin-layer weight loss difference of the content of volatile organic compounds in the slurry ink with simple operation and remarkable effect, so as to make up for the large error of the existing measurement methods The problem

Method used

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  • Method for measuring lamina decrement difference value of content of paste-like ink volatile organic compound
  • Method for measuring lamina decrement difference value of content of paste-like ink volatile organic compound
  • Method for measuring lamina decrement difference value of content of paste-like ink volatile organic compound

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The specific implementation steps of the detection method are as follows:

[0018] First weigh the weight W of the empty glass sheet 空 And record; then use a scraper to evenly pass the sample ink that is 1 to 2 times larger than the leveling amount through the film that has a rectangular window engraved on the glass sheet, and leave a thickness of 0.2mm±0.01mm on the glass sheet through the window Thin layer of sample ink, weighing the weight of the glass W 1 And record; then put the glass piece into the blast oven, bake at the baking temperature of 110°C±2°C for 1 hour; after 1 hour, take out the glass piece; after cooling to room temperature, weigh the baked The weight of the glass sheet W 2 and record;

[0019] Calculated according to the following formula:

[0020] W 1 -W 空 =W 试样 ;

[0021] W 1 -W 2 =W voc ;

[0022] W voc ÷W 试样 =VOC%;

[0023] Carry out the mean value after carrying out twice sample detection calculation respectively; Usually when tw...

Embodiment 2

[0044] Refer to the detection tools and materials and detection steps of specific embodiment 1.

[0045] Table 2 adopts the yellow offset printing ink produced by a certain manufacturer of the detection method of the present invention

[0046]

[0047] By testing the yellow offset printing ink by this method, the obtained results have good reproducibility, the experimental error is reduced, and the accuracy of analysis is also improved.

[0048] Others are with embodiment 1.

Embodiment 3

[0050] Refer to the detection tools and materials and detection steps of specific embodiment 1.

[0051] The detection method analyzes the yellow offset printing ink produced by a certain manufacturer.

[0052] Table 3 adopts the yellow offset printing ink produced by a certain manufacturer of the detection method of the present invention

[0053]

[0054] By testing the yellow offset printing ink by this method, the obtained results have good reproducibility, the experimental error is reduced, and the accuracy of analysis is improved.

[0055] Others are with embodiment 1.

[0056] This test method can effectively improve production efficiency and quality, ensure safe production, and avoid economic losses. The application effect is very significant.

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Abstract

The invention relates to a method for measuring a lamina decrement difference value of content of a paste-like ink volatile organic compound. The specific steps are as followings: firstly weighing the weight w of an empty glass sheet and recording; spreading an ink sample which is 1-2 times as large as the slicking amount uniformly on a membrane which covering the glass sheet and having a rectangular window by using a doctor blade so that an ink specimen lamina with the thickness of 0.2+ / -0.01mm is left on a glass sheet through the window; and weighing the weight W2 of the glass sheet and recording; then baking the glass sheet for one hour in an air blast baking oven at the temperature of 110 DEG C+ / - 2 DEG C; taking the glass sheet out and cooling to the room temperature, then weighing the weight W2 of the glass sheet and recording; calculating according to the formulas below: W1-Wempty=Wspecimen, W1-W2=Wvoc, and Wvoc / Wspecimen=Wvoc%; and respectively detecting and calculating the specimens twice and working out an average value. According to the method provided by the invention, a baking method is used for testing directly, the method is simple and feasible to operate and is safe and environmental friendly, the test error can be reduced well, the favorable test repeatability can be obtained, and the analyses accuracy is improved greatly.

Description

technical field [0001] The invention relates to a detection method of paste-like ink, in particular to a thin-layer weight loss difference measurement method for the content of volatile organic compounds in paste-like ink. Background technique [0002] At present, volatile organic compounds (VOC) refer to organic compounds that can volatilize in products under normal temperature and standard pressure. Generally, organic compounds with a boiling point of no more than 250°C under normal pressure are defined as volatile organic compounds. Volatile organic compounds usually affect the smell and senses of the human body, cause mucous membrane irritation and other systemic toxicity, irritate the eye mucous membrane, nasal mucous membrane, respiratory tract and skin, etc., and easily pass through the blood-brain barrier, resulting in inhibition of the central nervous system , causing headache, fatigue, drowsiness, inducing genotoxicity and carcinogenicity. The impact of volatile o...

Claims

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Application Information

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IPC IPC(8): G01N5/04G01N1/28
Inventor 孙磊孟庆玲赵培刚叶宁
Owner TIANJIN TOYO INK
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