Preparation method and application of fireproof antibacterial cardboard

An antibacterial card, fireproof layer technology, applied in special paper, fireproofing agent addition, papermaking and other directions, can solve the problems of human safety that is still in question, harmful to human health, poor heat resistance, etc., and achieves safe and harmless raw materials and safe ingredients. Harmless, good paint effect

Active Publication Date: 2019-09-20
JIANGYIN YONGLE PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing antibacterial cardboard is often modified with organic synthetic antibacterial agents, which may hinder human health, and has poor heat resistance and is easy to hydrolyze; fireproof cardboard still uses brominated flame retardants as the main functional components Yes, the safety of the human body is also open to question

Method used

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  • Preparation method and application of fireproof antibacterial cardboard
  • Preparation method and application of fireproof antibacterial cardboard
  • Preparation method and application of fireproof antibacterial cardboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Slowly add 60 parts of red phosphorus and 40 parts of aluminum hydroxide to 150 parts of oxidized dextrin solution at room temperature, and stir for 20 minutes at 7500 rpm with a high-speed mixer to obtain a dispersion mixture of wall material and core material;

[0035] Prepare 2250 parts of simethicone oil and heat it to 75-85°C, slowly add the obtained wall material and core material dispersion mixture into the simethicone oil, and add 3.5 parts of cocamidopropyl betaine; then use a high-speed mixer Stir at 1500rpm, adjust the pH value between 3 and 5, and gradually cool the solution to room temperature within 30min, adjust the speed to 125rpm and continue stirring for 10min to obtain a microcapsule suspension;

[0036] The resulting microcapsule suspension was filtered and separated, the filter cake was washed with an aqueous solution of cocamidopropyl betaine, and dried in a drying oven at 75°C to obtain microcapsules; then 450 parts of ethanol was added to obtain t...

Embodiment 2

[0042] Slowly add 65 parts of red phosphorus and 35 parts of magnesium hydroxide to 145 parts of phenolic resin pre-condensed body at room temperature, and use a high-speed mixer to stir at 7500 rpm for 20 minutes to obtain a dispersion mixture of wall material and core material;

[0043] Prepare 2300 parts of simethicone oil and heat it to 75-85°C, slowly add the obtained wall material and core material dispersion mixture into the simethicone oil, and add 3.5 parts of cocamidopropyl betaine; then use a high-speed mixer Stir at 1500rpm, adjust the pH value between 3 and 5, and gradually cool the solution to room temperature within 30min, adjust the speed to 125rpm and continue stirring for 10min to obtain a microcapsule suspension;

[0044] The resulting microcapsule suspension was filtered and separated, the filter cake was washed with an aqueous solution of cocamidopropyl betaine, and dried in a drying oven at 75°C to obtain microcapsules; then 460 parts of ethanol was added ...

Embodiment 3

[0050] Slowly add 55 parts of red phosphorus and 45 parts of graphite into 145 parts of polyimide precondensed body at room temperature, and stir for 20 minutes at 7500 rpm with a high-speed mixer to obtain a dispersion mixture of wall material and core material;

[0051] Prepare 2250 parts of simethicone oil and heat it to 75-85°C, slowly add the obtained wall material and core material dispersion mixture into the simethicone oil, and add 3 parts of cocamidopropyl betaine; then use a high-speed mixer Stir at 1500rpm, adjust the pH value between 3 and 5, and gradually cool the solution to room temperature within 30min, adjust the speed to 125rpm and continue stirring for 10min to obtain a microcapsule suspension;

[0052] The resulting microcapsule suspension was filtered and separated, the filter cake was washed with an aqueous solution of cocamidopropyl betaine, and dried in a drying oven at 75°C to obtain microcapsules; then 450 parts of ethanol was added to obtain the micro...

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Abstract

The invention discloses a preparation method of fireproof antibacterial cardboard. The cardboard comprises a base paper layer, a microcapsule fireproof layer, and an antibacterial reinforcing layer. The base paper layer is any one of white cardboard, white-bottom whiteboard paper and gray-bottom whiteboard paper, the microcapsule fireproof layer is obtained by coating or printing the base paper layer with a microcapsule coating, the antibacterial reinforcing layer is obtained by coating or printing the base paper layer with a modified palm wax emulsion, and the fireproof antibacterial cardboard from top to bottom successively comprises the antibacterial reinforcing layer, the microcapsule fireproof layer, the base paper layer, the microcapsule fireproof layer, and the antibacterial reinforcing layer. A capsule core of the microcapsule coating is a non-brominated flame retardant, and a capsule wall is a polymer resin. The modified palm wax emulsion is prepared by a specific method from solid palm wax, an emulsifier, a solvent, an antibacterial agent, a coupling agent, and an activator. The fireproof antibacterial cardboard has fireproof and antibacterial functions, accidentally obtains waterproof and antifouling characteristics, and has relatively high strength and folding resistance, and the used raw materials are safe and harmless and environment-friendly.

Description

technical field [0001] The invention belongs to the field of paper, and in particular relates to a preparation method and application of fireproof and antibacterial cardboard. Background technique [0002] With the rapid development of the packaging industry, the safety and functionality of packaging paper has received extensive attention. Especially for food packaging paper such as cardboard for wine and chocolate packaging, if it has good antibacterial properties and fire and flame retardant functions, it can well ensure the stability of food quality and safety during storage. [0003] However, the existing antibacterial cardboard is often modified with organic synthetic antibacterial agents, which may hinder human health, and has poor heat resistance and is easy to hydrolyze; fireproof cardboard still uses brominated flame retardants as the main functional components Yes, the safety of the human body is also open to question. Therefore, research on the application of in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H27/10D21H19/84D21H19/18D21H21/54D21H21/34D21H21/36D21H21/16
CPCD21H19/18D21H19/84D21H21/16D21H21/34D21H21/36D21H21/54D21H27/00D21H27/10
Inventor 徐小平
Owner JIANGYIN YONGLE PRINTING CO LTD
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