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Ketone-removing additive for removing ketone substances from packaging card paper and application of additive

A technology of additives and paper jams, which is applied in the direction of non-polymer organic compound addition, sludge control agent addition, fiber dispersant addition, etc. It can solve the problems of incomplete removal of volatile carbonyl compounds, low removal efficiency, and long time consumption. Achieve excellent selective elimination effect, short time consumption, and the effect of eliminating ketone compounds

Active Publication Date: 2014-06-25
CHINA TOBACCO HUNAN INDAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this traditional removal method has the disadvantages of long time consumption and low removal efficiency. Moreover, the volatile carbonyl compounds contained in the packaging cardboard are continuously released with the passage of time, and the traditional method cannot completely remove the volatile carbonyl compounds in the material. Volatile carbonyl compounds
Therefore, there is an urgent need for a new technology to completely eradicate volatile carbonyl compounds in packaging materials, and there has been no literature report in this regard so far.

Method used

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  • Ketone-removing additive for removing ketone substances from packaging card paper and application of additive
  • Ketone-removing additive for removing ketone substances from packaging card paper and application of additive
  • Ketone-removing additive for removing ketone substances from packaging card paper and application of additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Add 100 g of water-based acrylic copolymer to 25 g of water, then add 4 g of Foamex822 defoamer, 2 g of Dispers740 lubricating dispersant and 4 g of preservative O2C and continue stirring for 0.5 h to obtain a water-dispersed coating solution containing acrylic resin. Under stirring at room temperature, slowly add ethylenediamine of 2.125g and the acetic acid of 1.275g therein, mix uniformly, obtain aqueous coating solution I, it is coated on the back of the same paper that uses in comparative example 1 (back coating ), the coating amount is 4g / m 2 . Place at room temperature for 2h.

[0049] Headspace-gas chromatography was used to detect the total amount of volatile organic compounds in the above-mentioned packaging paper according to the YC / T207-2006 standard.

[0050] Content of volatile organic compounds VOCs in the cardboard after the aqueous coating liquid of table 4 coating embodiment 1

[0051]

[0052]

[0053] Table 5 Comparison of the content of ket...

Embodiment 2

[0058] Except that the ethylenediamine of 2.125g added in embodiment 1 is changed into propylenediamine of 2.125g, the acetic acid of 1.275g is changed into the mixture of acetic acid of 0.85g and 0.425g propionic acid, according to the same method of embodiment 1, The aqueous coating liquid II was obtained, and it was coated on the back of the same paper as that used in Comparative Example 1 (back coating), and the coating amount was 2 g / m 2 , placed at room temperature for 3h.

[0059] Headspace-gas chromatography was used to detect the total amount of volatile organic compounds in the above-mentioned packaging paper according to the YC / T207-2006 standard, and the results are shown in Table 6.

[0060] Table 6 Content of ketones in cardboard base paper and cardboard coated with water-based coating solution II

[0061]

[0062] As can be seen from Table 6, the removal efficiency of embodiment 2 to acetone is 56.5%, and the removal efficiency to methyl ethyl ketone and cyc...

Embodiment 3

[0064] Except that the ethylenediamine of 2.125g added in embodiment 1 is replaced by ethylenediamine of 0.3g and cyclohexanediamine of 0.3g, the acetic acid of 1.275g is replaced by the mixture of acetic acid of 0.4g, according to embodiment 1 same method, obtain the aqueous coating solution III, and apply it on the back of the same paper as that used in Comparative Example 1 (back coating), and the coating amount is 6g / m 2 , placed at room temperature for 2h.

[0065] Headspace-gas chromatography was used to detect the total amount of volatile organic compounds in the above-mentioned packaging paper according to the YC / T207-2006 standard, and the results are shown in Table 7.

[0066] Table 7 Contents of ketones in cardboard base paper and cardboard coated with water-based coating solution Ⅲ

[0067]

[0068] As can be seen from Table 7, the removal rate of embodiment 3 to acetone is 71.4%, and the removal rates to butanone and cyclohexanone are 100% and 100% respectivel...

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Abstract

The invention discloses a ketone-removing additive for removing ketone substances from packaging card paper, and application of the additive. The ketone-removing additive comprises organic amine and a catalyst, wherein the organic amine is one or more of ethanediamine, propane diamine, butanediamine, ethanolamine, guanidine and dimethyl biguanide; the catalyst is one or more of acetic acid, propionic acid, citric acid and malic acid; the mass ratio of the organic amine to the catalyst is 1.5: 1 to 2.5: 1. The ketone-removing additive is added into a water dispersible coating solution containing acrylic resin at room temperature to obtain a water-based coating solution, wherein the mass percent of the ketone-removing additive in the coating solution is 0.5%-5.0%. The water-based coating solution is used for removing the ketone substances from the packaging card paper. An experiment shows that the water-based coating solution can be used for effectively removing the ketone substances from the packaging card paper. The water-based coating solution is low in production cost, cannot change the structure and the characteristics of the paper in a ketone removing process, and cannot influence the subsequent processing process of the packaging card paper.

Description

technical field [0001] The invention belongs to the application field of food or cigarette wrapping paper, and in particular relates to a ketone-removing additive for removing ketone substances in wrapping paper and an application thereof. Background technique [0002] Ketones such as methyl ethyl ketone and acetone are usually colorless and transparent liquids, which have the characteristics of low boiling point, easy volatilization, good chemical stability and difficulty in reacting with other substances. Because of their good solubility, they are often used as solvents or thinner. But methyl ethyl ketone and acetone all have certain toxicity, wherein acetone has hepatotoxicity to human body, has certain irritation to mucous membrane, can cause symptoms such as headache, bronchitis after inhaling its steam. May also cause unconsciousness if large quantities are inhaled. Butanone is irritating to the skin and will cause dermatitis through degreasing the skin. It is irrita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/14D21H19/44D21H21/12D21H21/04D21H21/08D21H17/06
Inventor 银董红任建新文建辉余赞钟文
Owner CHINA TOBACCO HUNAN INDAL CORP
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