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Preparation method of fruit cultivation bag bioactive coating green degradable antibacterial paper

A bioactive, fruit-cultivating bag technology, applied in coatings, special papers, pigment-containing coatings, etc., to achieve the effects of improving resistance, preventing the decline of antibacterial effects, and strong antioxidant capacity

Active Publication Date: 2022-06-24
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the current problems of fruit-growing bagging, the present invention provides a method for preparing fruit-growing bagging paper with various antibacterial mechanisms, anti-ultraviolet light, good water resistance, and natural degradability, and a biologically active coating for fruit-growing bags. A method for preparing a layer of green degradable antibacterial paper, and the excellent properties of the fruit-growing bagging paper prolong the service life of the fruit-growing bagging, realize the purpose of recycling, thereby reducing the cost

Method used

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  • Preparation method of fruit cultivation bag bioactive coating green degradable antibacterial paper
  • Preparation method of fruit cultivation bag bioactive coating green degradable antibacterial paper
  • Preparation method of fruit cultivation bag bioactive coating green degradable antibacterial paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Add 5g of sodium hexametaphosphate to 500mL of purified water, add 0.5g of nano-TiO 2 Add into the sodium hexametaphosphate solution, stir magnetically for 1 hour; add 50 g of starch to the solution, stir magnetically at 90°C for 1 hour to prepare the first layer of coating solution.

[0035] (2) Add 10 g of chitosan to 500 ml of purified water, add 7.5 mL of acetic acid, and stir magnetically for 1 h at 60°C to prepare a chitosan solution;

[0036](3) acetylsalicylic acid, ascorbic acid and choline chloride were mixed in a molar ratio of 1:1:3, and ball-milled at 600rpm for 30min at 50°C to obtain an organic acid deep eutectic solvent (AA / VC / CHCl) ;

[0037] (4) Pour more than 6 g of organic acid deep eutectic solvent into 500 mL of chitosan solution, and stir at 60° C. for 2 h to prepare a second layer of coating solution.

[0038] (5) The first layer of coating solution (800mL / m 2 ), the second layer of coating liquid (800mL / m 2 ) Coating the inner layer of t...

Embodiment 2

[0043] (1) Add 5g of sodium hexametaphosphate to 500mL of purified water, add 0.5g of nano-TiO 2 Add into the sodium hexametaphosphate solution and stir magnetically for 1 hour; add 50 g of starch to the solution and stir magnetically for 1 hour to prepare the first layer of coating solution.

[0044] (2) Add 10 g of chitosan to 500 ml of purified water, add 7.5 mL of acetic acid, and stir magnetically for 1 h at 60°C to prepare a chitosan solution;

[0045] (3) acetylsalicylic acid and choline chloride were mixed in a molar ratio of 1:1, and ball-milled at 600rpm for 30min at 50°C to obtain an organic acid deep eutectic solvent (AA / CHCl);

[0046] (4) Pour more than 6 g of organic acid deep eutectic solvent into 500 mL of chitosan solution, and stir at 60° C. for 2 h to prepare a second layer of coating solution.

[0047] (5) The first layer of coating solution (800mL / m 2 ), the second layer of coating liquid (800mL / m 2 ) Coating the inner layer of the fruit bag paper to f...

Embodiment 3

[0052] (1) Add 5g of sodium hexametaphosphate to 500mL of purified water, add 0.5g of nano-TiO 2 Add into the sodium hexametaphosphate solution and stir magnetically for 1 hour; add 50 g of starch to the solution and stir magnetically for 1 hour to prepare the first layer of coating solution.

[0053] (2) Add 10 g of chitosan to 500 ml of purified water, add 7.5 mL of acetic acid, and stir magnetically for 1 h at 60°C to prepare a chitosan solution;

[0054] (3) mixing ascorbic acid and choline chloride in a molar ratio of 1:2, and ball grinding at 600rpm for 30min at 50°C to obtain an organic acid deep eutectic solvent (VC / CHCl);

[0055] (4) Pour 6 g of different organic acid deep eutectic solvents into 500 mL of chitosan solution, and stir at 60° C. for 2 h to prepare a second layer of coating solution.

[0056] (5) Coat the first layer and the second layer of coating liquid on the inner layer of the fruit bag paper in turn to form a film, heat and dry the coated fruit bag...

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Abstract

The invention discloses a preparation method of fruit cultivation bag bioactive coating green degradable antibacterial paper. The preparation method comprises the following steps: preparing a first layer of inner coating antibacterial solution; preparing a natural eutectic solvent; preparing a second layer of inner coating antibacterial solution; preparing a waterproof coating liquid; making paper with pulp through a paper machine, sequentially coating the inner surface of the paper surface with the first layer of inner coating antibacterial solution and the second layer of inner coating antibacterial solution, coating the outer surface of the paper surface with the waterproof coating solution, coiling, and slitting and rewinding to obtain the finished product fruit bag paper. The antibacterial paper prepared by the invention has the characteristics of various antibacterial mechanisms, ultraviolet light resistance, good waterproofness, natural degradation and the like, the service life of a fruit cultivation bag is prolonged due to the excellent properties of the fruit cultivation bag paper, and the purpose of recycling is realized, so that the cost is reduced.

Description

technical field [0001] The invention relates to the field of antibacterial paper, in particular to a preparation method of a green degradable antibacterial paper with a biologically active coating of a fruit growing bag. Background technique [0002] Fruit growing bags have a great effect on the growth of fruits and are more and more widely used by fruit farmers. It can reduce the use of pesticides and reduce pollution. The appearance quality of the fruit is greatly improved. It can reduce the incidence of pests and diseases and improve the internal quality of fruits. Although the marketization of domestic fruit growing bag paper has been realized in my country, the products have basically replaced imported products. However, in the market feedback of domestic fruit bag paper in recent years, it is found that there are still the following problems: [0003] (1) The quality of domestic fruit growing bag paper is poor, and there are many problems in use. The antibacterial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00D21H21/36D21H19/84D21H19/82D21H19/38D21H21/52D21H19/64D21H19/54D21H19/14D21H19/10D21H21/16D21H17/05
CPCD21H27/00D21H21/36D21H19/84D21H19/826D21H19/385D21H21/52D21H19/64D21H19/54D21H19/14D21H19/10D21H21/16D21H17/05Y02W90/10
Inventor 邵平余佳浩徐山林潘杰锋
Owner ZHEJIANG UNIV OF TECH
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