WO2020238404A1 - Procédé de préparation de papier de conditionnement alimentaire résistant aux huiles et antibactérien à base de biomasse sans plastique - Google Patents

Procédé de préparation de papier de conditionnement alimentaire résistant aux huiles et antibactérien à base de biomasse sans plastique Download PDF

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Publication number
WO2020238404A1
WO2020238404A1 PCT/CN2020/082859 CN2020082859W WO2020238404A1 WO 2020238404 A1 WO2020238404 A1 WO 2020238404A1 CN 2020082859 W CN2020082859 W CN 2020082859W WO 2020238404 A1 WO2020238404 A1 WO 2020238404A1
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WIPO (PCT)
Prior art keywords
parts
chitosan
proof
nanocellulose
preparation
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PCT/CN2020/082859
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English (en)
Chinese (zh)
Inventor
吕勇
韩高荣
孟育
童树华
陈杰
华飞果
宋词
钟婷婷
何志斌
郑霖强
Original Assignee
浙江金昌特种纸股份有限公司
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Publication of WO2020238404A1 publication Critical patent/WO2020238404A1/fr

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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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04—Kraft or sulfate pulp
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/18—Highly hydrated, swollen or fibrillatable fibres
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
    • D21H17/72—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic material
    • 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
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • D21H21/20—Wet strength agents
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
    • 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

Definitions

  • the invention relates to a method for preparing plastic-free biomass-based oil-proof and antibacterial food packaging paper, which belongs to the technical field of food packaging paper.
  • Paper-based packaging materials have the advantages of wide sources, low cost, easy processing, and environmental protection, and are very suitable for food packaging materials. Because paper is mainly composed of cellulose, when it is directly used in oily food packaging, it has poor grease resistance and poor barrier performance. It is easy to mold and deteriorate in a humid environment. In order to improve the oil resistance and barrier performance of paper-based packaging materials, vacuum aluminization, film coating or coating of fluorine-containing polymers are often carried out on the paper-based surface to improve grease resistance and barrier performance.
  • the paper plastic prepared by the above method Composite materials are not environmentally friendly and cannot be recycled. In developed countries such as the European Union, the use of such materials has been explicitly prohibited. Therefore, it is a very promising method for preparing food packaging paper to use natural organic matter aqueous solution to coat the surface of the paper base to replace paper plastic materials.
  • Cationic starch is a commonly used paper base surface coating sizing agent, which can improve the surface strength of the paper base; but the paper base prepared by this method has a loose surface and poor grease resistance, which is difficult to meet the grease resistance requirements of food packaging paper .
  • Chitosan is a product of deacetylation of chitin, and it has a wide range of sources in nature. Chitosan has cationic amino groups, compact molecular chain arrangement, high crystallinity, good antibacterial properties, barrier properties and anti-oil properties, and is very suitable for food packaging.
  • the use of chitosan can better improve the anti-grease performance and antibacterial performance, but the molecular weight of chitosan is small, the molecular weight is between 200,000 and 600,000. When used directly, the mechanical properties are far from traditional paper-plastic materials. Large restrictions on the scope of use; at the same time, due to the small molecular weight of chitosan, the barrier properties are quite different from traditional paper-plastic materials, and the barrier properties of water vapor and oxygen are average, which reduces the shelf life of food.
  • the purpose of the present invention is to overcome the above-mentioned shortcomings.
  • chitosan and nanocellulose are compounded and then surface coated on the paper, thereby improving the grease resistance, antibacterial properties, mechanical properties and barrier properties of the paper;
  • no harmful solvent is introduced in the preparation process, all raw materials can be recycled, the preparation technology is green and environmentally friendly, and the application of oil-proof and antibacterial paper in food preservation packaging can be expanded, thereby providing a plastic-free biomass-based oil-proof and antibacterial food packaging Paper preparation method.
  • the technical scheme adopted by the present invention is: a preparation method of plastic-free biomass-based oil-proof and anti-bacterial food packaging paper, which is characterized in that the steps in terms of parts by weight are:
  • Pulp preparation Soak the bleached kraft pulp board in water for 3 to 5 hours, concentrate the slurry to a content of 5% to 15%, and refine it in a PFI refiner for 5 to 5 hours. 10min, until the beating degree of the pulp is 40-50°SR; Disperse the slurry into a sealed bag and balance the moisture at room temperature for 16-32h, and measure the absolute dry fiber content in the slurry for later use;
  • step (3) the dried paper sheet obtained in step (2) is used for surface sizing with a sizing agent, and the amount of sizing agent is 0.2 to 0.95 parts;
  • Coating Dissolve chitosan in an aqueous acetic acid solution, and add nanocellulose and oxidized starch after oxidation by an oxidizing agent to prepare a coating solution.
  • the amount of chitosan is 0.3-0.5, oxidized 0.3 ⁇ 0.6 parts of nano cellulose, 2.5 ⁇ 30 parts of oxidized starch;
  • Drying Dry quickly in a vacuum dryer at a drying temperature of 110-130°C and a drying time of 1 to 3 minutes to obtain oil-proof and antibacterial packaging paper.
  • the method for preparing plastic-free biomass-based oil-proof and anti-bacterial food packaging paper is characterized in that the moisturizing and strengthening agent in step (2) is cationic starch; the oxidizing agent of nano cellulose is sodium periodate.
  • the method for preparing plastic-free biomass-based oil-proof and anti-bacterial food packaging paper is characterized in that the sizing agent in step (3) is oxidized starch.
  • the method for preparing plastic-free biomass-based oil-proof and anti-bacterial food packaging paper is characterized in that the weight of the oil-proof and anti-bacterial packaging paper sheet prepared in step (5) is 120-140 g/m 2 .
  • nano cellulose is introduced into internal sizing and surface sizing, and chitosan is combined with nano cellulose.
  • the shell is integrated.
  • no harmful solvents are introduced in the preparation process. All raw materials can be recycled and reused.
  • the preparation technology is green and environmentally friendly, and the oil-proof and antibacterial paper Application in food preservation packaging.
  • Figure 1 is a process flow diagram of the present invention.
  • Fig. 2 is a performance parameter table of oil-proof and anti-bacterial paper prepared in Example 1 and Example 2 of the present invention.
  • the preparation method of the plastic-free biomass-based oil-proof and anti-bacterial food packaging paper has the following steps in parts by weight:
  • Pulp preparation soak the kraft bleached pulp board in water for 4 hours, concentrate the pulp concentration to a content of 5%, refining in a PFI refiner, the refining time is 6 minutes, and the pulp beating degree is 45 °SR; Disperse the slurry into a sealed bag and balance the moisture at room temperature for 24 hours, and measure the content of absolute dry fiber in the slurry for later use.
  • Preparation of dry paper Weigh the slurry according to the required area of the product, weigh 0.23 parts of cationic starch, 0.2 parts of nanocellulose, and 0.3 parts of chitosan for every 100 parts of slurry; combine the slurry and nanofiber Chitosan and chitosan are fully separated in the fiber separator, the rotation speed is 2800 ⁇ 3000r/min, and the separation time is 10min; the dispersed slurry is copied in a sheet machine, and the wet paper sheet obtained is processed in a hydraulic press Pressing, the pressure is 4MPa, and the pressing time is 30s; the paper sheet obtained after pressing is dried in a vacuum dryer at a drying temperature of 110° C. and a drying time of 3 minutes to obtain a dried sheet.
  • Sizing oxidized starch is used as a sizing agent on the dried paper sheet obtained in step (2), and the surface sizing method is used for sizing.
  • the amount of sizing agent is 0.65 parts.
  • Coating Dissolve chitosan in aqueous acetic acid solution, add sodium periodate as oxidant, and prepare coating liquid with oxidized nanocellulose and oxidized starch.
  • the chitosan in every 100 parts of coating liquid is 0.5 parts, 0.3 parts of oxidized nano cellulose, 20 parts of oxidized starch.
  • Drying Dry quickly in a vacuum dryer at a drying temperature of 110°C and a drying time of 3 minutes to obtain oil-proof and antibacterial packaging paper.
  • the basis weight of the oil-proof and antibacterial packaging paper is 130g/m 2 .
  • the preparation method of the plastic-free biomass-based oil-proof and anti-bacterial food packaging paper has the following steps in parts by weight:
  • Pulp preparation soak the kraft bleached pulp board in water for 5 hours, concentrate the pulp concentration to 5%, refining in a PFI refiner, the refining time is 8 minutes, and the pulp beating degree is 50 °SR; Disperse the slurry into a sealed bag and balance the moisture at room temperature for 24 hours, and measure the content of absolute dry fiber in the slurry for later use.
  • Preparation of dry paper Weigh the slurry according to the area required for the product, weigh 0.2 parts of cationic starch, 0.4 parts of nanocellulose, and 0.3 parts of chitosan for every 100 parts of slurry; combine the slurry and nanofiber Chitosan and chitosan are fully separated in the fiber separator, the rotation speed is 2800 ⁇ 3000r/min, and the separation time is 10min; the dispersed slurry is copied in a sheet machine, and the wet paper sheet obtained is processed in a hydraulic press Pressing, the pressure is 4MPa, and the pressing time is 30s; the paper sheet obtained after pressing is dried in a vacuum dryer at a drying temperature of 110° C. and a drying time of 3 minutes to obtain a dried sheet.
  • Sizing oxidized starch is used as a sizing agent on the dried paper sheet obtained in step (2), and the surface sizing method is used for sizing.
  • the amount of sizing agent is 0.65 parts.
  • Coating Dissolve chitosan in aqueous acetic acid solution, add sodium periodate as oxidant, and prepare coating solution from oxidized nanocellulose and oxidized starch.
  • the chitosan in every 100 parts of coating solution is 0.6 parts, 0.4 parts of oxidized nano cellulose, 20 parts of oxidized starch.
  • Drying Dry quickly in a vacuum dryer at a drying temperature of 110°C and a drying time of 3 minutes to obtain oil-proof and antibacterial packaging paper.
  • the basis weight of the oil-proof and antibacterial packaging paper is 130g/m 2 .

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  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Wrappers (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne un procédé de préparation de papier de conditionnement alimentaire résistant aux huiles et antibactérien à base de biomasse sans plastique, consistant à : préparer une pâte, préparer un papier sec, effectuer un traitement de collage, de revêtement et de séchage. Le procédé de préparation du papier sec consiste, pour 100 parties de pâte, à peser de 0,25 à 0,75 partie d'un agent de renforcement à l'état humide, de 0,1 à 0,3 partie de nanocellulose et de 0,3 à 0,5 partie de chitosane, et à mettre en œuvre la fabrication d'une feuille avec la pâte ; un traitement de revêtement consiste à dissoudre du chitosane dans une solution aqueuse d'acide acétique, et à ajouter de la nanocellulose ultérieurement à l'oxydation par un oxydant, et de l'amidon oxydé pour préparer un liquide de revêtement, 100 parties du liquide de revêtement comprenant de 0,3 à 0,5 partie de chitosane, de 0,3 à 0,6 partie de nanocellulose oxydée et de 2,5 à 30 parties d'amidon oxydé. Grâce à un collage interne et à un collage de surface, la nanocellulose est introduite, et le chitosane et la nanocellulose sont mélangés ; par comparaison avec une technique de collage de surface d'amidon cationique existante, la présente invention combine la propriété anti-graisse et la propriété antibactérienne du chitosane et la propriété mécanique et la propriété barrière de la nanocellulose.
PCT/CN2020/082859 2019-05-29 2020-04-01 Procédé de préparation de papier de conditionnement alimentaire résistant aux huiles et antibactérien à base de biomasse sans plastique WO2020238404A1 (fr)

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CN201910454880.2A CN110284368A (zh) 2019-05-29 2019-05-29 一种无塑生物质基防油抗菌食品包装纸制备方法
CN201910454880.2 2019-05-29

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CN110284368A (zh) * 2019-05-29 2019-09-27 浙江金昌特种纸股份有限公司 一种无塑生物质基防油抗菌食品包装纸制备方法
CN111304967B (zh) * 2020-02-27 2022-05-24 沈阳思特雷斯纸业有限责任公司 一种添加纳米纤维素的低定量食品包装纸及其制造方法
CN112482090B (zh) * 2020-11-19 2022-06-14 广东轻工职业技术学院 一种环保型抗油脂纸的生产方法
CN113045938A (zh) * 2021-02-19 2021-06-29 佛山职业技术学院 一种纳米纤维素基疏油耐油无氟涂料的制备方法及应用
CN114016331A (zh) * 2021-10-28 2022-02-08 山东天和纸业有限公司 一种降低食品纸边渗透的方法
CN114717872A (zh) * 2022-04-22 2022-07-08 东莞职业技术学院 一种涂料组合物、涂布纸及其制备方法
CN114855504A (zh) * 2022-05-16 2022-08-05 广东轻工职业技术学院 一种无氟食品纸用施胶组合及其制备方法与应用
CN114892449A (zh) * 2022-05-17 2022-08-12 浙江恒达新材料股份有限公司 一种无氟抗菌防油纸的制备方法
CN115012252B (zh) * 2022-06-07 2023-07-25 安徽顺彤包装材料有限公司 一种可降解高光防油纸及其制备方法
CN116065424B (zh) * 2023-02-16 2023-07-18 华邦古楼新材料有限公司 一种纳米纤维素增强食品包装纸及其制备方法
CN116623459B (zh) * 2023-07-11 2024-06-21 中国制浆造纸研究院衢州分院 一种可降解抗菌壳聚糖改性纳米纤维素防油纸的制备方法
CN116876261A (zh) * 2023-08-04 2023-10-13 湖南妙工环保科技有限公司 一种用于制备无塑防油纸张纯植物纤维涂料及其制备方法

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