A kind of production technology of antibacterial environmental protection anti-counterfeiting aluminum foil paper

A production process, aluminum foil paper technology, applied in papermaking, fungicides, packaging paper, etc., can solve problems such as high cost, pollute the environment, complex recycling process, etc., and achieve the effect of saving cost and process, saving cost, and simple recycling

Active Publication Date: 2022-05-24
河南荣盛包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a production process of antibacterial, environmentally friendly and anti-counterfeiting aluminum foil paper. By compounding a layer of isolation layer on the surface of the aluminum foil layer, and then compounding the paper base layer on the surface of the isolation layer, since the polyethylene oxide in the isolation layer is extremely It is easy to dissolve in hot water. By soaking the aluminum foil in hot water, the aluminum foil layer and the paper base layer can be separated through the dissolution of polyethylene oxide. The separated aluminum foil layer can be directly reused, which is not only easy to recycle, but also saves costs. In addition, no pollutants will be generated during the recycling process to achieve environmental protection performance. At the same time, the recycled aluminum foil layer still exists in the form of aluminum foil and can be used directly without additional processing, reducing costs and processes, thereby solving the problems in the prior art. Aluminum foil paper is usually discarded directly after use, or it is crushed and then dissolved with acid-base paired aluminum foil, and then the dissolved aluminum ions are recovered. The recovery process is complicated, the cost is high, and it is easy to produce acid-base waste. liquid, the problem of polluting the environment

Method used

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  • A kind of production technology of antibacterial environmental protection anti-counterfeiting aluminum foil paper
  • A kind of production technology of antibacterial environmental protection anti-counterfeiting aluminum foil paper
  • A kind of production technology of antibacterial environmental protection anti-counterfeiting aluminum foil paper

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The specific preparation process of the antibacterial discoloration colloid is as follows:

[0024] Step 1: take by weighing 1kg pentanedione and add it to the reaction vessel, add 6L ethanol solution to it simultaneously, add dropwise sodium hydroxide to it after stirring and dissolving, adjust the pH=13 of the solution, then add 560g acrolein to the reaction vessel, The reaction was stirred at room temperature for 5-6 hours, then heated to 70 °C and evaporated for 4-5 hours to remove the ethanol solvent and unreacted acrolein. The adjusted product is extracted with ether, and the upper oil phase is removed for collection and then subjected to vacuum distillation to obtain dialdehyde diketone;

[0025] Step 2: Weigh 1kg of 2,4-dinitrophenylhydrazine and add it to 10L of acetic acid solution, cool down to 5-10°C and stir to dissolve, add 657g of the dialdehyde diketone prepared in step 1 dropwise to it, and control the rate of addition to be 3-4mL / min, after the dropwi...

Embodiment 2

[0035] The specific preparation process of the antibacterial discoloration colloid is as follows:

[0036] Step 1: take by weighing 1kg pentanedione and add it to the reaction vessel, add 6L ethanol solution to it simultaneously, add dropwise sodium hydroxide to it after stirring and dissolving, adjust the pH=13 of the solution, then add 560g acrolein to the reaction vessel, The reaction was stirred at room temperature for 5-6 hours, then heated to 70 °C and evaporated for 4-5 hours to remove the ethanol solvent and unreacted acrolein. The adjusted product is extracted with diethyl ether, and the upper oil phase is removed for collection and then distilled under reduced pressure to obtain dialdehyde diketone;

[0037] Step 2: Weigh 1kg of 2,4-dinitrophenylhydrazine and add it to 10L of acetic acid solution, cool down to 5-10°C and stir to dissolve, add 657g of the dialdehyde diketone prepared in step 1 dropwise to it, and control the rate of addition to be 3-4mL / min, after th...

Embodiment 3

[0041] The specific preparation process of the antibacterial discoloration colloid is as follows:

[0042] Step 1: Weigh 1kg of pentanedione and add it to the reaction vessel, add 6L of ethanol solution to it, stir and dissolve, add 4.5kg of saturated sodium sulfate solution, stir and react at room temperature for 5-7h, and then evaporate the solvent. Water and ethanol, the solid product is added to ethanol, stirred and mixed and filtered, the filtrate is collected and subjected to vacuum distillation to obtain sodium dihydroxysulfite;

[0043] Step 2: Add 1kg of polyvinyl alcohol with a low degree of polymerization to 8L of hot water at 65-70°C and stir to dissolve, then add 0.431kg of the sodium dihydroxysulfite prepared in Step 2, stir and dissolve, and then dropwise into it Add 0.126kg of toluene diisocyanate, control the dripping speed to be 8-9mL / min, after the dripping is complete, the constant temperature stirring reaction is performed for 4-5h to obtain a viscous nitr...

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Abstract

The invention discloses a production process of antibacterial, environment-friendly and anti-counterfeiting aluminum foil paper. The specific preparation process is as follows: the discarded paper is crushed and then soaked in sodium hydroxide solution to obtain paper powder; ; Weigh a certain amount of polyethylene oxide, melt it at 70°C and spray it on the surface of the aluminum foil layer while it is hot. At this time, the surface of the aluminum foil layer forms a layer of isolation layer, and the prepared color-changing gelatinized pulp is evenly coated on the surface of the aluminum foil layer. On the surface of the isolation layer, an antibacterial and anti-counterfeiting aluminum foil paper is obtained. In the present invention, a layer of isolation layer is compounded on the surface of the aluminum foil layer, and then a paper base layer is compounded on the surface of the isolation layer. Since the polyethylene oxide in the isolation layer is very easy to dissolve in hot water, the aluminum foil paper is soaked in hot water. In the process, the separation of the aluminum foil layer and the paper base layer is achieved through the dissolution of polyethylene oxide, and the separated aluminum foil layer can be directly reused, which is not only easy to recycle, but also saves costs and no pollutants will be generated during the recycling process.

Description

technical field [0001] The invention belongs to the field of aluminum foil paper preparation, and relates to a production process of an antibacterial, environment-friendly and anti-counterfeiting aluminum foil paper. Background technique [0002] Aluminum foil paper is widely used in the field of packaging. When it is lower than the packaging of high-end products, it is difficult for consumers to distinguish the authenticity of the product, and aluminum foil paper is generally prepared by compounding aluminum foil layer and paper layer, and the paper layer is in a humid environment. It is easy to breed bacteria and fungi and become moldy, so in the prior art, bactericidal substances are usually added directly to the pulp. In the existing bactericidal substances, heavy metal ions or quaternary ammonium salt positive ion groups are usually introduced therein, but heavy metal ions are usually adsorbed. load, it is easy to desorb under certain conditions, reducing its effect, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D65/42B05D7/24B32B38/10C08G18/83C08G18/76C08G18/65C08G18/62C08G18/32A01N47/20A01P3/00A01P1/00D21C5/02
CPCB65D65/42B05D7/24B32B38/10C08G18/7614C08G18/6212C08G18/3857C08G18/831A01N47/20D21C5/02D21C5/022Y02W30/64Y02W30/80
Inventor 刘慧梅田帅
Owner 河南荣盛包装材料有限公司
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