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Antibacterial kraft paper and preparation method thereof

A technology of kraft paper and solution, which is applied in the field of kraft paper and can solve the problems of insufficient antibacterial effect

Active Publication Date: 2021-05-04
中山泰星纸袋制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, physical modification and chemical modification are carried out separately, and the obtained antibacterial effect is insufficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of antibacterial kraft paper with superhydrophobic property on the surface, its preparation method comprises the following steps:

[0023] (1) Prepare clean, dry and flat kraft paper for use;

[0024] (2) To prepare a coating solution, dissolve titanate, rosin-modified alkyd resin, and hydroxypropyl starch in absolute ethanol, and stir evenly;

[0025] (3) Apply the coating solution prepared in step (2) evenly on the surface of the kraft paper, and after standing for a period of time, evaporate part of the solvent ethanol, and then spray deionized water on the surface of the kraft paper coated with the coating solution to carry out The surface is hydrolyzed in situ, and after the hydrolysis reaction is complete, it can be dried.

[0026] In every liter of coating solution, titanate: rosin modified alkyd resin: hydroxypropyl starch = 50g: 50g: 20g.

[0027] The titanate is tetrabutyl titanate.

[0028] In step (3), the standing time is 4 minutes.

[0029] In s...

Embodiment 2

[0031] A kind of antibacterial kraft paper with superhydrophobic property on the surface, its preparation method comprises the following steps:

[0032] (1) Prepare clean, dry and flat kraft paper for use;

[0033] (2) To prepare a coating solution, dissolve titanate, rosin-modified alkyd resin, and hydroxypropyl starch in absolute ethanol, and stir evenly;

[0034] (3) Apply the coating solution prepared in step (2) evenly on the surface of the kraft paper, and after standing for a period of time, evaporate part of the solvent ethanol, and then spray deionized water on the surface of the kraft paper coated with the coating solution to carry out The surface is hydrolyzed in situ, and after the hydrolysis reaction is complete, it can be dried.

[0035] In every liter of coating solution, titanate: rosin modified alkyd resin: hydroxypropyl starch = 20g: 20g: 10g.

[0036] The titanate is tetraisopropyl bis(dioctylphosphiteoxy) titanate.

[0037] In step (3), the standing time...

Embodiment 3

[0040] A kind of antibacterial kraft paper with superhydrophobic property on the surface, its preparation method comprises the following steps:

[0041] (1) Prepare clean, dry and flat kraft paper for use;

[0042] (2) To prepare a coating solution, dissolve titanate, rosin-modified alkyd resin, and hydroxypropyl starch in absolute ethanol, and stir evenly;

[0043] (3) Apply the coating solution prepared in step (2) evenly on the surface of the kraft paper, and after standing for a period of time, evaporate part of the solvent ethanol, and then spray deionized water on the surface of the kraft paper coated with the coating solution to carry out The surface is hydrolyzed in situ, and after the hydrolysis reaction is complete, it can be dried.

[0044] In every liter of coating solution, titanate: rosin modified alkyd resin: hydroxypropyl starch = 60g: 40g: 20g.

[0045] The titanate is a mixture of tetrabutyl titanate and isopropoxy dioleic acid acyloxy (dioctyl phosphate ac...

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PUM

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Abstract

The invention relates to an antibacterial kraft paper and a preparation method thereof, comprising (1) preparing clean, dry and flat kraft paper for use; (2) preparing a coating solution, mixing titanate, rosin-modified alkyd resin, and hydroxypropyl starch Dissolve in absolute ethanol and stir evenly; (3) Spread the coating solution evenly on the surface of kraft paper, let it stand for a period of time, evaporate part of the solvent ethanol, and then spray deionized on the surface of kraft paper coated with coating solution Water, in-situ surface hydrolysis, after the hydrolysis reaction is complete, it can be dried. Through the in-situ hydrolysis of titanate, a nano-papillae structure is obtained on the surface of the coating, and the micron-scale surface roughness of the coating itself makes the coating surface superhydrophobic. In addition, the nano-titanium dioxide particles obtained by the in-situ hydrolysis of titanate have antibacterial and photocatalytic effects, and with the superhydrophobic surface, the antibacterial effect of kraft paper can be enhanced.

Description

technical field [0001] The invention belongs to the field of kraft paper, in particular to an antibacterial kraft paper with superhydrophobic properties on the surface. Background technique [0002] Kraft paper is widely used in food storage and transportation. Generally, to ensure food safety, kraft paper usually needs to have antimicrobial properties. [0003] At present, there are two main types of production methods for antibacterial kraft paper. One is to directly add antibacterial agents to the papermaking process of paper through a certain process to obtain antibacterial kraft paper. However, the combination effect of antibacterial agents and paper fibers is not ideal. Use The antibacterial effect of antibacterial kraft paper is unstable. The other is to obtain antibacterial kraft paper by modifying the surface of the kraft paper. The antibacterial effect includes physical antibacterial and chemical antibacterial. Among them, physical antibacterial refers to the an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/10D21H21/36D21H19/14D21H19/20D21H21/16B65D65/42
CPCB65D65/42D21H19/14D21H19/20D21H21/16D21H21/36D21H27/10Y02W90/10
Inventor 李向臻
Owner 中山泰星纸袋制品有限公司
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