Production method of medical packaging paper with high bacteria blocking performance

A production method and packaging technology, applied in the directions of paper, textiles and papermaking, addition of reinforcing agents, etc., can solve the problems of large pore size of paper, easy passage of bacteria, affecting performance, etc., achieve good air permeability, improve antibacterial performance, The effect of improving quality

Inactive Publication Date: 2016-01-20
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the average length of softwood pulp fibers is about 1.5-3.0 mm and the width is 30-75 μm, and the length of hardwood pulp fibers is 0.7-1.7 mm and width is 20-40 μm, the interwoven paper has a large pore size and bacteria can easily pass through it.
For this reason, the pulp fibers need to be properly beaten before papermaking, so that the fibers can be properly divided into filaments, so as to improve the interweaving performance between fibers and reduce the paper aperture. However, excessive beating treatment reduces the medical treatment. The air permeability of antibacterial packaging paper affects its compatibility with sterilization methods and affects its performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Dispersion and modification of polyester microfibers: the polyester microfibers used in the present invention have a length of 1mm and a width of 0.3um. Add polyester microfiber into water and stir to disperse, the dispersion concentration is 0.1%. Then, add 0.1% aluminum sulfate (mass percentage relative to microfibers), stir and mix evenly, add 0.2% CMC (mass percentage relative to microfibers), stir for 5 minutes, mix uniformly, and set aside.

[0013] Papermaking: Bleached softwood pulp and bleached hardwood pulp are separately beaten to a beating degree of 16-35°SR, mixed evenly, the ratio of the two is 50:50, and the pulp concentration is 1.0%. Add modified polyester microfibers to this slurry in an amount of 1.0% (relative to the mass percentage of wood pulp), and mix well. Then, add 0.3-3.0% wet strength agent PAE (polyamide polyamine epichlorohydrin), 0.5-3.0% cationic starch, 0.05-0.5% AKD, mix well, add water to dilute to a concentration of 0.1%, add 0.02% c...

Embodiment 2

[0015] Dispersion and modification of polyester microfibers: the polyester microfibers used in the present invention have a length of 2mm and a width of 3.0um. Add polyester microfiber into water and stir to disperse, the dispersion concentration is 0.5%. Then, add 1.0% aluminum sulfate (mass percentage relative to microfibers), stir and mix evenly, add 2.0% CMC (mass percentage relative to microfibers), stir for 5 minutes, mix uniformly, and set aside.

[0016] Papermaking: Bleached softwood pulp and bleached hardwood pulp are separately beaten to a beating degree of 16-35°SR, mixed evenly, the ratio of the two is 80:20, and the pulp concentration is 5.0%. Add modified polyester microfibers to this slurry in an amount of 10.0% (relative to the mass percentage of wood pulp), and mix well. Then, add 0.3-3.0% wet strength agent PAE (polyamide polyamine epichlorohydrin), 0.5-3.0% cationic starch, 0.05-0.5% AKD, mix well, add water to dilute to a concentration of 1.0%, add 0.06% ...

Embodiment 3

[0018] Dispersion and modification of polyester microfibers: the polyester microfibers used in the present invention have a length of 1.5mm and a width of 1.8um. Add polyester microfiber into water and stir to disperse, the dispersion concentration is 0.26%. Then, add 0.7% aluminum sulfate (mass percentage relative to microfibers), stir and mix evenly, add 1.6% CMC (mass percentage relative to microfibers), stir for 5 minutes, mix uniformly, and set aside.

[0019] Papermaking: Bleached softwood pulp and bleached hardwood pulp are separately beaten to a beating degree of 16-35°SR, mixed evenly, the ratio of the two is 65:35, and the pulp concentration is 3.0%. Add modified polyester microfibers to this slurry in an amount of 5.6% (relative to the mass percentage of wood pulp), and mix well. Then, add 0.3-3.0% wet strength agent PAE (polyamide polyamine epichlorohydrin), 0.5-3.0% cationic starch, 0.05-0.5% AKD, mix well, add water to dilute to a concentration of 0.5%, add 0.04...

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Abstract

The invention relates to a production method of medical packaging paper with high bacteria blocking performance. The production method comprises following steps: polyester microfibers with the length of 1-2 mm and the width of 0.3-3 mu m are selected and dispersed in water firstly; then aluminum sulfate is added and mixed uniformly, CMC (carboxymethyl cellulose) is added and stirred for 5 min, and the mixture is uniformly mixed; bleached softwood chemical pulp and bleached hardwood chemical pulp are beaten until the beating degree is 16-35 degree SR and are mixed uniformly; modified polyester microfibers are added to the pulp and uniformly mixed; then the wet strength agent PAE, cationic starch and AKD are added, water is added, the mixture is diluted until the concentration is 0.1%-1.0%, cationic polyacrylamide is added and mixed uniformly, the product is subjected to papermaking, squeezing, drying, surface sizing and calendering on a paper machine, and the medical packaging paper with high bacteria blocking performance is prepared. With adoption of the method, the bacteria blocking performance of the medical packaging paper is improved, the medical packaging paper keeps good breathability, and the quality of the medical packaging paper is improved.

Description

technical field [0001] The invention relates to a production method of medical antibacterial packaging paper. Background technique [0002] Medical antibacterial packaging paper is widely used in the packaging of sterile medical devices, forming a bacterial and microbial isolation barrier for medical devices, preventing bacterial infection, ensuring the expected use and storage life of medical devices, and ensuring that the products are kept free of contamination during transportation and storage conditions. bacteria conditions. In addition to meeting the most basic protection and packaging performance of isolating the external environment, medical antibacterial packaging paper pays more attention to the long-term stability of material functions, the compatibility with sterilization conditions and sterilization methods, and the bacteria isolation characteristics of materials. Non-toxic. At present, the medical antibacterial packaging paper produced in my country is mainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H15/10D21H13/24D21H21/20D21H17/55D21H21/36
Inventor 夏新兴孙珊郭爱莲郭大亮
Owner ZHEJIANG SCI-TECH UNIV
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