Renewable resin for edible ink, application and preparation method

A technology of recycled resins and resins, applied in inks, applications, household appliances, etc., to achieve the effects of less damage, reduced environmental pressure, and good biodegradability

Pending Publication Date: 2021-08-24
ZHANGJIAGANG DAWN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The formula components of edible inks in the prior art mainly include three components of colorants, solvents and adhesives, which are basically natural colloids, but they are not natural, which means harmony with the human body. can be metabolized, and is harmless to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation of oxidized starch: under temperature conditions at 40 ° C, a starch mass was 38% of a starch emulsion, and 0.1% sodium hydroxide was added in a mass ratio, and then bisulfate and hydrogen peroxide mixed in 1: 1 mixed. The mixed solution was once oxidized, the oxidation time was 60 min, and finally the mass fraction was 5% sulfuric acid, and the color of the emulsion became white, the oxidation reaction time was 30 min, and the secondary oxidation was completed. The starch emulsion was then filtered, washed, dehydrated, dried in a blow cassette at 40 ° C to obtain oxidized starch.

[0024] Preparation modified rosin resin: See China Patent Application No.: CN201010578625.8 Preparation of hydrogenated pine fragrance, hydrogenated rosin and glycerol press 1: 3, according to the proportion of hydrogenated pine-saving mass than 1:50, catalyst hydroxide Lithium, at a temperature condition higher than 220 ° C for more than 3.5 h, after which the reaction mixture was f...

Embodiment 2

[0027] Preparation of oxidized starch: under temperature conditions at 40 ° C, the percent of the starch mass was 38% of the starch emulsion, and 0.2% sodium hydroxide was added to the mass ratio, then bisulfate and hydrogen peroxide mixed in 1: 2 mixed. The mixed solution was oxidized, the oxidation time was 50 min, and finally the mass fraction was 8% sulfuric acid, and the secondary oxidation was carried out. The color of the emulsion became white, the oxidation time was 20 min, and the secondary oxidation was completed. The starch emulsion was then filtered, washed, dehydrated, dried in a blow cassette at 40 ° C to obtain oxidized starch.

[0028] Preparation of modified rosin resins: See China Patent Application No.: CN201010578625.8 Preparation of hydrogenated pine fragrance, hydrogenated rosin and glycerol press 1: 1, according to the proportion of hydrogen scent mass than 1:50, catalyst hydroxide Lithium, at a temperature condition higher than 200 ° C for more than 3.5 h, ...

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PUM

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Abstract

The invention discloses renewable resin for edible ink, application and a preparation method. The preparation method comprises the following steps: preparing oxidized starch: adding sodium hydroxide into starch emulsion according to a certain proportion under the temperature condition of 40-45 DEG C, then adding a mixed solution of ferrous sulfate and hydrogen peroxide to perform primary oxidation for the oxidation reaction time of not less than 30 min, finally adding sulfuric acid with the mass fraction of 5%-8%, and carrying out secondary oxidation for the oxidation reaction time of 20-30 min, so as to finally obtaini oxidized starch; preparing modified rosin resin: mixing hydrogenated rosin and glycerol according to a ratio of 1:1 to 3:1 and a small amount of a catalyst, conducting reacting at a temperature higher than 200-220 DEG C for more than 3-3.5 hours, and then filtering the reaction mixture under reduced pressure to obtain the modified rosin resin; and preparing renewable resin: mixing the oxidized starch and the modified rosin resin according to a molar ratio of (4-7):1, adding a certain amount of cross-linking agent and initiator, conducting mixing at the temperature lower than 10 DEG C, and conducting dissolving in absolute ethyl alcohol.

Description

Technical field [0001] The present invention belongs to the field of edible ink preparation, and more particularly to a renewable resin, application, and preparation method for edible ink. Background technique [0002] With the increasingly white heat of the catering industry, especially the rise of the take-out industry, the design of the catering packaging is also the focus of attracting customers. Currently, the surface printing ink used as edible packaging materials is very likely to partially integrate into the guests in the process of transportation or customer dining, so on the one hand, it is necessary to reduce the solubility of the ink, and on the other hand, the safety of edible ink is required. [0003] The formula components of edible inks in the prior art mainly include three components of color, solvent and adhesive, basically use natural colloid, but not natural means harmony with the human body, in the human body It can be metabolized, and it is harmless to the h...

Claims

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Application Information

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IPC IPC(8): C08L3/10C08L93/04C09D11/14C09D11/08
CPCC08L3/10C09D11/14C09D11/08C08L93/04
Inventor 朱胜武
Owner ZHANGJIAGANG DAWN CHEM
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