CN107354821B - Green medical bacterium-resistant packaging paper and preparation method thereof - Google Patents

Green medical bacterium-resistant packaging paper and preparation method thereof Download PDF

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Publication number
CN107354821B
CN107354821B CN201710497634.6A CN201710497634A CN107354821B CN 107354821 B CN107354821 B CN 107354821B CN 201710497634 A CN201710497634 A CN 201710497634A CN 107354821 B CN107354821 B CN 107354821B
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China
Prior art keywords
packaging paper
paper
medical
preparation
bacteria
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CN201710497634.6A
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CN107354821A (en
Inventor
盛杰
杨仁党
刘萧
张志礼
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South China University of Technology SCUT
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South China University of Technology SCUT
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/12—Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate

Abstract

The invention belongs to the crossing field of biomass materials and medical treatment and health, and particularly discloses green medical bacteria-resistant packaging paper and a preparation method thereof. The preparation method comprises the following steps: making bamboo fiber or hemp fiber into paper, drying, respectively coating the nano cellulose suspension and the water-soluble chitosan solution on the surface layer and the bottom layer of the paper, and drying to obtain the medical antibacterial packaging paper with a 3-layer structure. The materials used by the prepared green medical bacteria-resistant packaging paper are natural degradable materials, the surface layer pore size of the green medical bacteria-resistant packaging paper is less than 500nm, and the bacteria-resistant performance is excellent.

Description

Green medical bacterium-resistant packaging paper and preparation method thereof
Technical Field
The invention belongs to the crossing field of biomass materials and medical treatment and health, and particularly relates to green medical bacteria-resistant packaging paper and a preparation method thereof.
Background
Medical packaging paper is produced in recent years along with the development of medical career in China. The medical packaging paper is a new medical packaging material, has strict requirements on sanitation and product quality, and has good surface strength and bacterium resistance while ensuring air permeability. The surface strength and the bacteria-resistant performance of the medical packaging paper directly affect the health and safety of medical appliances. At present, the domestic medical packaging paper market is mainly occupied by Germany and Japan products, and the development of the medical packaging paper with independent intellectual property rights has good economic benefit and social benefit. In addition, the conventional medical packaging paper is not only complex in preparation process, but also relatively complex in composition raw materials, so that a green high-performance product prepared from natural raw materials will be a development trend.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a preparation method of green medical bacteria-resistant packaging paper. The invention takes natural bamboo fiber as an antibacterial base material, nano-cellulose as a surface layer surface reinforcing and pore optimizing antibacterial material and chitosan as a bottom layer antibacterial material, and is obtained by a coating method. The preparation method is simple and efficient, and the obtained medical bacteria-resistant packaging paper is excellent in performance and environment-friendly.
The invention also aims to provide the green medical antibacterial packaging paper prepared by the preparation method.
The purpose of the invention is realized by the following technical scheme:
a preparation method of green medical antibacterial packaging paper comprises the following operation steps:
making bamboo fiber or hemp fiber into paper, drying, respectively coating the nano cellulose suspension and the water-soluble chitosan solution on the surface layer and the bottom layer of the paper, and drying to obtain the medical antibacterial packaging paper with a 3-layer structure.
In the preparation method, the surface strength, the surface pore structure and the bacteria resistance of the paper can be controlled by controlling the use amounts of the bamboo fiber or the hemp fiber and the nano-cellulose and the molecular weight and the use amount of the chitosan. The medical antibacterial packaging paper base body is made of bamboo fiber or hemp fiber with natural antibacterial property.
The coating weight of the nano-cellulose is 0.5-10g/m2。
The molecular weight of the water-soluble chitosan in the water-soluble chitosan solution is 20000-50000, the concentration of the water-soluble chitosan solution is 0.05-1 wt%, and the coating weight is 0.2-2g/m2。
A green medical antibacterial packaging paper has a 3-layer structure, a surface layer is composed of nanocellulose, the pore size of the surface layer can be controlled, and bacteria can be prevented from passing through the surface layer; the base layer is composed of a base layer composed of bamboo fibers or hemp fibers and a bottom layer composed of water-soluble chitosan, and the base layer and the bottom layer are made of 2 layers of materials with antibacterial performance.
The materials used by the green medical bacteria-resistant packaging paper are natural degradable materials, the 3-layer structure of the green medical bacteria-resistant packaging paper has the bacteria-resistant effect, the surface layer pore size of the green medical bacteria-resistant packaging paper is less than 500nm, and the bacteria-resistant performance is excellent.
Compared with the prior art, the invention has the following advantages and beneficial effects:
compared with the traditional medical packaging paper and the preparation method thereof, the medical packaging paper prepared by the invention has better surface strength and bacterium resistance, is green, environment-friendly and degradable, and has simple and controllable preparation process.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
And (3) bacteria resistance detection: the detection was carried out by means of an agar contact challenge test, with reference to ISO 11607-2006 standard and DIN 58953-6-2010.
Example 1
Making 1g bamboo fiber into paper with a sheet making machine, drying, coating the nano cellulose suspension on the surface of the bamboo fiber paper, and controlling the coating amount to be 0.5g/m2(ii) a Coating water-soluble chitosan with molecular weight of 2 × 10 on the bottom surface of bamboo fiber paper4Concentration 0.05 wt%, coating weight 0.2g/m2(ii) a And drying to obtain medical antibacterial packaging paper and using the medical antibacterial packaging paper for antibacterial testing.
The prepared medical antibacterial packaging paper has the advantages that the upper surface strength is 1.22m/s, the surface layer pore size is less than 500nm, the antibacterial performance is excellent, and the final bacterial growth number is less than 5 (the bacterial growth number of common paper is more than 200).
Example 2
Making 1g of bamboo fiber into paper by a sheet making machine, drying, coating the nano cellulose suspension on the surface of the bamboo fiber paper, and controlling the coating amount to be 2g/m2(ii) a Coating water-soluble chitosan with molecular weight of 2 × 10 on the bottom surface of bamboo fiber paper4Concentration 0.1 wt%, coating weight 0.4g/m2(ii) a And drying to obtain medical antibacterial packaging paper and using the medical antibacterial packaging paper for antibacterial testing.
The prepared medical antibacterial packaging paper has the advantages that the upper surface strength is 1.46m/s, the surface layer pore size is less than 500nm, the antibacterial performance is excellent, and the final bacterial growth number is less than 5 (the bacterial growth number of common paper is more than 200).
Example 3
Making 1g bamboo fiber into paper with a sheet making machine, drying, coating the nano cellulose suspension on the bamboo fiber paperSurface, coating amount is controlled to be 4g/m2(ii) a Coating water-soluble chitosan with molecular weight of 2 × 10 on the bottom surface of bamboo fiber paper4Concentration 0.5 wt%, coating weight 0.8g/m2And drying to obtain medical bacteria-resistant packaging paper for bacteria resistance test.
The prepared medical antibacterial packaging paper has the advantages that the upper surface strength is 1.73m/s, the surface layer pore size is less than 500nm, the antibacterial performance is excellent, and the final bacterial growth number is less than 5 (the bacterial growth number of common paper is more than 200).
Example 4
Making 1g of bamboo fiber into paper by a sheet making machine, drying, coating the nano cellulose suspension on the surface of the bamboo fiber paper, and controlling the coating amount to be 6g/m2(ii) a Coating water-soluble chitosan with molecular weight of 5 × 10 on the bottom surface of bamboo fiber paper4Concentration 0.5 wt%, coating weight 1.2g/m2(ii) a And drying to obtain medical antibacterial packaging paper and using the medical antibacterial packaging paper for antibacterial testing.
The prepared medical antibacterial packaging paper has the advantages that the upper surface strength is 1.85m/s, the surface layer pore size is less than 500nm, the antibacterial performance is excellent, and the final bacterial growth number is less than 5 (the bacterial growth number of common paper is more than 200).
Example 5
Making 1g of bamboo fiber into paper by a sheet making machine, drying, coating the nano cellulose suspension on the surface of the bamboo fiber paper, and controlling the coating amount to be 8g/m2(ii) a Coating water-soluble chitosan with molecular weight of 5 × 10 on the bottom surface of bamboo fiber paper4Concentration 0.1 wt%, coating weight 2g/m2(ii) a And drying to obtain medical antibacterial packaging paper and using the medical antibacterial packaging paper for antibacterial testing.
The prepared medical antibacterial packaging paper has the advantages that the upper surface strength is 1.82m/s, the surface layer pore size is less than 500nm, the antibacterial performance is excellent, and the final bacterial growth number is less than 5 (the bacterial growth number of common paper is more than 200).
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims (2)

1. A preparation method of green medical antibacterial packaging paper is characterized by comprising the following steps:
making bamboo fiber or hemp fiber into paper, drying, respectively coating the nano cellulose suspension and the water-soluble chitosan solution on the surface layer and the bottom layer of the paper, and drying to obtain 3-layer medical antibacterial packaging paper; the coating weight of the nano-cellulose is 0.5-10g/m2(ii) a The molecular weight of the water-soluble chitosan in the water-soluble chitosan solution is 20000-50000, the concentration of the water-soluble chitosan solution is 0.05-1 wt%, and the coating weight is 0.2-2g/m2(ii) a The pore size of the surface layer of the green medical bacteria-resistant packaging paper is less than 500 nm.
2. A green medical antibacterial packaging paper, which is characterized by being prepared by the preparation method of the green medical antibacterial packaging paper of claim 1.
CN201710497634.6A 2017-06-27 2017-06-27 Green medical bacterium-resistant packaging paper and preparation method thereof Active CN107354821B (en)

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CN108316047A (en) * 2018-03-28 2018-07-24 华南理工大学 The secondary fibre paper and the preparation method and application thereof of cellulose nanometer fibril enhancing
CN108589399B (en) * 2018-05-11 2019-10-29 陕西科技大学 One kind being based on cellulose base/ZIF-8 composite material and preparation method
CN109235105A (en) * 2018-07-23 2019-01-18 华南理工大学 A method of chitin fiber paper base material is prepared based on wet papermaking technology

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CN106436431B (en) * 2016-10-21 2018-08-07 陕西科技大学 A kind of preparation method of highly-breathable aseptic packaging paper
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CN103025813A (en) * 2009-11-16 2013-04-03 瑞典皇家理工控股公司 Strong nanopaper
CN102811860A (en) * 2010-03-18 2012-12-05 斯托拉恩索公司 Method for providing a substrate with a barrier and a substrate comprising a barrier
CN102821949A (en) * 2010-03-25 2012-12-12 凸版印刷株式会社 Gas barrier laminate and packaging material
CN103842452A (en) * 2011-09-22 2014-06-04 凸版印刷株式会社 Composition for film molding, laminate, film, sheet substrate, packing material, method for producing composition for film molding, and method for producing cellulose dispersion

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