Antibacterial wear-resistant wrapping paper and its production process

Abstract

The application discloses an antibacterial wear-resistant packaging paper and a production process thereof, and belongs to the technical field of packaging paper. The production process comprises the following steps: S1, polyvinyl alcohol is added into deionized water, and the polyvinyl alcohol is dissolved under stirring at 95 DEG C to obtain a PVA solution; after the PVA solution is cooled to room temperature through mechanical stirring, a siloxane grafted quaternary ammonium cellulose suspension, a wear-resistant component and a crosslinking agent are added; after stirring at room temperature for 1 h, an antibacterial coating solution is obtained; and S2, the antibacterial coating solution is uniformly coated on the surface of a packaging base paper, the coating thickness is 60-100 microns, and the packaging paper is dried at 90-100 DEG C for 30-60 min; after being cooled to room temperature, the antibacterial wear-resistant packaging paper is obtained. In the antibacterial coating solution, the siloxane grafted quaternary ammonium cellulose and the wear-resistant component are introduced, and various combination relationships exist between the two, so that the coating density is increased, the packaging paper is endowed with good antibacterial property, and the water resistance and wear resistance of the packaging paper are improved.

Description

Technical Field

[0001] This invention belongs to the field of packaging paper technology, specifically relating to an antibacterial and wear-resistant packaging paper and its production process. Background Technology

[0002] Paper packaging materials are widely used due to their abundant sources, low cost, and environmental friendliness. However, since the main components of packaging paper are cellulose and other components, microorganisms can easily multiply on the fibers under suitable temperature and humidity conditions, leading to mold and mildew growth on the paper and affecting its normal use. Therefore, endowing packaging paper materials with antibacterial and anti-mildew functions has excellent practical application value.

[0003] Existing technologies for preparing antibacterial packaging paper mainly include fiber modification, surface processing, and in-pulp addition. Fiber modification involves antibacterial treatment of paper fibers, but this process is complex. In-pulp addition involves directly adding antibacterial agents in the wet end of papermaking, requiring consideration of the compatibility between the antibacterial agent and the pulp. Surface processing combines antibacterial agents with the surface of the paper through spraying, coating, sizing, and impregnation. For example, Chinese patent CN109853300B discloses an anti-mildew coating for printed packaging paper, composed of the following raw materials in parts by weight: 50-60 parts waterborne polyurethane, 0.8-1 part dispersant. The resulting packaging paper, containing 0.5-0.6 parts defoamer, 0.7-0.9 parts mildew inhibitor, 6-8 parts antibacterial complex, and 30-40 parts deionized water, exhibits good antibacterial properties. However, the coating is highly hydrophilic and has poor abrasion resistance. In humid environments, the coating easily absorbs moisture from the air, causing softening and reduced hardness. This leads to frequent sliding between the packaged goods and the packaging paper surface during transportation, resulting in wear and tear on the packaging paper surface, damage to the protective coating, and ultimately, loss of antibacterial properties. Therefore, providing a waterproof, antibacterial, and abrasion-resistant packaging paper is a technical problem that needs to be solved. Summary of the Invention

[0004] The purpose of this invention is to provide an antibacterial and wear-resistant packaging paper and its production process, which solves the problems of poor waterproofness, wear resistance and antibacterial properties of existing packaging paper coatings.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] An antibacterial and wear-resistant packaging paper is composed of a packaging base paper and an antibacterial and wear-resistant layer on the surface, wherein the antibacterial and wear-resistant layer is obtained by applying an antibacterial coating liquid to the surface.

[0007] This antibacterial and durable packaging paper is made through the following steps:

[0008] S1. Polyvinyl alcohol is added to deionized water and stirred at 95°C to dissolve it to obtain a PVA solution. After mechanical stirring and cooling to room temperature, siloxane-grafted quaternized cellulose suspension, wear-resistant components and crosslinking agent are added. After stirring at room temperature for 1 hour, an antibacterial coating solution is obtained.

[0009] S2. Apply the antibacterial coating liquid evenly to the surface of the packaging base paper, with a coating thickness of 60-100μm. Dry it at 90-100℃ for 30-60 minutes and cool it to room temperature to obtain the antibacterial and wear-resistant packaging paper.

[0010] Further, in step S1, the mass fraction of the PVA solution is 8-13%, the amount of siloxane-grafted quaternized cellulose is 0.25-0.75 times the mass of polyvinyl alcohol, and the amounts of crosslinking agent and wear-resistant component are the same as the amount of siloxane-grafted quaternized cellulose. The siloxane-grafted quaternized cellulose suspension is obtained by mixing siloxane-grafted quaternized cellulose and deionized water at a ratio of 0.6-0.8 g: 10 mL.

[0011] Furthermore, siloxane-grafted quaternized cellulose is prepared via the following steps:

[0012] Step a: Add microcrystalline cellulose, sodium hydroxide solution and epichlorohydrin to a reaction vessel, stir and react at 60-65℃ for 6 hours, filter to obtain filter cake, wash the filter cake with isopropanol and transfer it to a reaction vessel containing octadecylamine isopropanol solution, stir and react at 80℃ for 3-5 hours, filter, wash the filter cake with anhydrous ethanol and deionized water 3-5 times, then wash with 0.1mol / L sodium hydroxide solution and 0.1mol / L hydrochloric acid solution, and finally vacuum dry at 60℃ to obtain quaternized cellulose;

[0013] Step b: Add quaternized cellulose and dihydro-3-[3-(trimethoxysilyl)propyl]furan-2,5-dione to anhydrous DMF, stir for 3-5 min, and then react at 120 °C for 15-20 h under nitrogen protection. After the reaction is complete, allow the mixture to stand and precipitate. After filtration, dry the filter cake under vacuum at 60 °C to obtain siloxane-grafted quaternized cellulose.

[0014] This invention first uses microcrystalline cellulose, epichlorohydrin, and octadecylamine as raw materials to obtain quaternized cellulose containing abundant hydroxyl groups and quaternary ammonium salt structures. Then, the hydroxyl groups in the quaternized cellulose undergo a ring-opening esterification reaction with dihydro-3-[3-(trimethoxysilyl)propyl]furan-2,5-dione to form a quaternized cellulose product containing carboxyl groups and siloxane structures, namely the siloxane-grafted quaternized cellulose.

[0015] Further, in step a, the ratio of microcrystalline cellulose, sodium hydroxide solution, epichlorohydrin and octadecylamine is 10g:250mL:120-150mL:20-30g, the sodium hydroxide solution has a mass fraction of 10%, and the octadecylamine isopropanol solution is composed of octadecylamine and isopropanol in a ratio of 1g:10mL.

[0016] Furthermore, in step b, the ratio of quaternized cellulose, dihydro-3-[3-(trimethoxysilyl)propyl]furan-2,5-dione and anhydrous DMF is 1g:3-5g:60-100mL.

[0017] Furthermore, the wear-resistant component is prepared through the following steps:

[0018] Add anhydrous ethanol to neutralize zinc acetate dihydrate into a flask, stir at 70-75℃ and 500 r / min for 30 min, then add dropwise a mixture of lithium hydroxide ethanol solution and graphene oxide dispersion. After the addition is complete, heat to reflux and react for 30-60 min. After cooling to room temperature, mix the reaction product with n-hexane at a volume ratio of 1:2 and keep at 4℃ for 12 h. Discard the supernatant, wash the precipitate with deionized water, and dry under vacuum at 60℃ to obtain the wear-resistant component.

[0019] Furthermore, in the above reaction, the ratio of anhydrous ethanol, zinc acetate dihydrate, lithium hydroxide, and graphene oxide is 50 mL: 0.55 g: 0.2 g: 60-100 mg. Mixture a is composed of lithium hydroxide ethanol solution and graphene oxide dispersion at a volume ratio of 1:1. The lithium hydroxide ethanol solution is composed of lithium hydroxide and anhydrous ethanol at a ratio of 0.2 g: 20 mL, and the graphene oxide dispersion is composed of graphene oxide and anhydrous ethanol at a ratio of 60-100 mg: 30 mL. Using zinc acetate as the zinc source, a graphene oxide and zinc oxide hybrid, i.e., the wear-resistant component, is obtained by sol-gel method.

[0020] Furthermore, the crosslinking agent is one or more of propionaldehyde, butyraldehyde, and glutaraldehyde.

[0021] Furthermore, the packaging base paper is one of the following: white cardboard, sulfite paper, kraft paper, degreased paper, paperboard, and laminated paper.

[0022] The beneficial effects of this invention:

[0023] To address the issues of poor water resistance and abrasion resistance in existing antibacterial coatings for packaging paper, this invention prepares an antibacterial coating liquid using polyvinyl alcohol solution, siloxane-grafted quaternized cellulose, and abrasion-resistant components as raw materials. The siloxane-grafted quaternized cellulose contains an alkyl long-chain quaternary ammonium salt structure, a siloxane structure, and active carboxyl groups. The quaternary ammonium salt structure possesses antibacterial properties and is a cationic group, enabling it to bind with paper fibers (which are negatively charged) through electrostatic adsorption. The siloxane structure generates silanol groups, forming covalent bonds with the fibers and abrasion-resistant components, thus imparting antibacterial properties to the coating while improving the bonding strength between the coating and the paper. Furthermore, the introduction of the alkyl long chain improves the coating's water resistance, and the carboxyl groups form ionic bonds with the zinc oxide of the abrasion-resistant component, combined with the siloxane-grafted quaternized cellulose... The hydrogen bonding between cellulose and polyvinyl alcohol creates a dense cross-linked network within the coating, improving its water resistance. When the coating is subjected to friction, the wear-resistant component forms a lubricating film on the wear track surface, reducing the coefficient of friction. Furthermore, due to the various binding relationships between the wear-resistant component and siloxane-grafted quaternized cellulose, the probability of the wear-resistant component being pulled out during wear is reduced, decreasing the generation of wear debris and thus lowering the wear rate. The unique sheet-like structure and high-strength toughness of graphene oxide in the wear-resistant component also prevent friction-induced cracks from propagating within the coating, effectively improving its wear resistance. Combined with the sheet-like barrier properties of graphene oxide and the antibacterial properties of zinc oxide and graphene oxide, the resulting packaging paper possesses excellent wear resistance, water resistance, and antibacterial properties. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1

[0026] A siloxane-grafted quaternized cellulose is prepared by the following steps:

[0027] Step a: Add 10g of microcrystalline cellulose, 250mL of 10wt% sodium hydroxide solution and 120mL of epichlorohydrin to a reaction vessel, stir and react at 60℃ for 6h, filter to obtain filter cake, wash the filter cake with isopropanol and transfer it to a reaction vessel containing 20g of octadecylamine and 200mL of isopropanol, stir and react at 80℃ for 3h, filter, wash the filter cake first with anhydrous ethanol and then with deionized water 3 times, then wash with 0.1mol / L sodium hydroxide solution and 0.1mol / L hydrochloric acid solution, and finally vacuum dry at 60℃ to obtain quaternized cellulose;

[0028] Step b: Add 1g of quaternized cellulose and 3g of dihydro-3-[3-(trimethoxysilyl)propyl]furan-2,5-dione to 60mL of anhydrous DMF. After stirring for 3min, the mixture is stirred at 120℃ for 15h under nitrogen protection. After the reaction is complete, the mixture is allowed to stand and precipitate. The filter cake is then dried under vacuum at 60℃ to obtain siloxane-grafted quaternized cellulose.

[0029] Example 2

[0030] A siloxane-grafted quaternized cellulose is prepared by the following steps:

[0031] Step a: Add 10g of microcrystalline cellulose, 250mL of 10wt% sodium hydroxide solution and 150mL of epichlorohydrin to a reaction vessel, stir and react at 65℃ for 6h, filter to obtain filter cake, wash the filter cake with isopropanol and transfer it to a reaction vessel containing 30g of octadecylamine and 300mL of isopropanol, stir and react at 80℃ for 5h, filter, wash the filter cake with anhydrous ethanol and deionized water 5 times, then wash with 0.1mol / L sodium hydroxide solution and 0.1mol / L hydrochloric acid solution, and finally vacuum dry at 60℃ to obtain quaternized cellulose;

[0032] Step b: Add 1g of quaternized cellulose and 5g of dihydro-3-[3-(trimethoxysilyl)propyl]furan-2,5-dione to 100mL of anhydrous DMF. After stirring for 5min, the mixture is stirred at 120℃ for 20h under nitrogen protection. After the reaction is completed, the mixture is allowed to stand and precipitate. The filter cake is then dried under vacuum at 60℃ to obtain siloxane-grafted quaternized cellulose.

[0033] Comparative Example 1

[0034] This comparative example is the quaternized cellulose obtained in Example 1.

[0035] Example 3

[0036] An antibacterial and wear-resistant packaging paper is made through the following steps:

[0037] S1. Add 8g of polyvinyl alcohol to deionized water and stir at 95°C to dissolve it to obtain a PVA solution with a mass fraction of 8%. After mechanical stirring and cooling to room temperature, add siloxane-grafted quaternized cellulose suspension, wear-resistant components and crosslinking agent. Stir at room temperature for 1 hour to obtain antibacterial coating solution.

[0038] The amount of siloxane-grafted quaternized cellulose used is 0.25 times the mass of polyvinyl alcohol. The amounts of crosslinking agent and wear-resistant component are the same as the amount of siloxane-grafted quaternized cellulose. The siloxane-grafted quaternized cellulose suspension is obtained by mixing the siloxane-grafted quaternized cellulose from Example 1 and deionized water at a ratio of 0.6g:10mL.

[0039] S2. The antibacterial coating liquid is evenly coated on the surface of the packaging base paper with a coating thickness of 60μm. It is then dried at 90℃ for 30min and cooled to room temperature to obtain the antibacterial and wear-resistant packaging paper.

[0040] The wear-resistant component is prepared by the following steps:

[0041] 0.55 g of zinc acetate dihydrate was neutralized in 50 mL of anhydrous ethanol and added to a flask. The mixture was stirred at 500 r / min for 30 min at 70 °C. Mixture a was added dropwise. After the addition was complete, the mixture was heated to reflux and reacted for 30 min. After cooling to room temperature, the reaction product was mixed with n-hexane at a volume ratio of 1:2 and kept at 4 °C for 12 h. The supernatant was discarded, and the precipitate was washed with deionized water and dried under vacuum at 60 °C to obtain the wear-resistant component. Mixture a was composed of lithium hydroxide ethanol solution and graphene oxide dispersion at a volume ratio of 1:1. The lithium hydroxide ethanol solution was composed of lithium hydroxide and anhydrous ethanol at a ratio of 0.2 g: 20 mL, and the graphene oxide dispersion was composed of graphene oxide and anhydrous ethanol at a ratio of 60 mg: 30 mL.

[0042] The crosslinking agent is propionaldehyde, and the packaging base paper is white cardboard.

[0043] Example 4

[0044] An antibacterial and wear-resistant packaging paper is made through the following steps:

[0045] S1. Add 10g of polyvinyl alcohol to deionized water and stir at 95℃ to dissolve it to obtain a 10% PVA solution. After mechanical stirring and cooling to room temperature, add siloxane-grafted quaternized cellulose suspension, wear-resistant components and crosslinking agent. Stir at room temperature for 1 hour to obtain antibacterial coating solution.

[0046] In this embodiment, the amount of siloxane-grafted quaternized cellulose is 0.5 times the mass of polyvinyl alcohol, and the amounts of crosslinking agent and wear-resistant component are the same as those of siloxane-grafted quaternized cellulose. The siloxane-grafted quaternized cellulose suspension is obtained by mixing the siloxane-grafted quaternized cellulose from Example 2 and deionized water at a ratio of 0.7 g: 10 mL.

[0047] S2. The antibacterial coating liquid is evenly coated on the surface of the packaging base paper with a coating thickness of 80μm. It is then dried at 95℃ for 40min and cooled to room temperature to obtain the antibacterial and wear-resistant packaging paper.

[0048] The wear-resistant component is prepared by the following steps:

[0049] 0.55 g of zinc acetate dihydrate was neutralized in 50 mL of anhydrous ethanol and added to a flask. The mixture was stirred at 73 °C and 500 r / min for 30 min. Mixture a was added dropwise. After the addition was complete, the mixture was heated to reflux and reacted for 40 min. After cooling to room temperature, the reaction product was mixed with n-hexane at a volume ratio of 1:2 and kept at 4 °C for 12 h. The supernatant was discarded, and the precipitate was washed with deionized water and dried under vacuum at 60 °C to obtain the wear-resistant component. Mixture a was composed of lithium hydroxide ethanol solution and graphene oxide dispersion at a volume ratio of 1:1. The lithium hydroxide ethanol solution was composed of lithium hydroxide and anhydrous ethanol at a ratio of 0.2 g: 20 mL, and the graphene oxide dispersion was composed of graphene oxide and anhydrous ethanol at a ratio of 80 mg: 30 mL.

[0050] The crosslinking agent is butyraldehyde, and the packaging base paper is white cardboard.

[0051] Example 5

[0052] An antibacterial and wear-resistant packaging paper is made through the following steps:

[0053] S1. Add 13g of polyvinyl alcohol to deionized water and stir at 95°C to dissolve it to obtain a PVA solution with a mass fraction of 13%. After mechanical stirring and cooling to room temperature, add siloxane-grafted quaternized cellulose suspension, wear-resistant components and crosslinking agent. Stir at room temperature for 1 hour to obtain antibacterial coating solution.

[0054] The amount of siloxane-grafted quaternized cellulose used is 0.75 times the mass of polyvinyl alcohol. The amounts of crosslinking agent and wear-resistant component are the same as the amount of siloxane-grafted quaternized cellulose. The siloxane-grafted quaternized cellulose suspension is obtained by mixing the siloxane-grafted quaternized cellulose from Example 2 and deionized water at a ratio of 0.6-0.8 g: 10 mL.

[0055] S2. The antibacterial coating liquid is evenly coated on the surface of the packaging base paper with a coating thickness of 100μm. It is then dried at 100℃ for 60min and cooled to room temperature to obtain the antibacterial and wear-resistant packaging paper.

[0056] The wear-resistant component is prepared by the following steps:

[0057] 0.55 g of zinc acetate dihydrate was neutralized in 50 mL of anhydrous ethanol and added to a flask. The mixture was stirred at 500 r / min for 30 min at 70-75 °C. Mixture a was added dropwise. After the addition was complete, the mixture was heated to reflux and reacted for 60 min. After cooling to room temperature, the reaction product was mixed with n-hexane at a volume ratio of 1:2 and kept at 4 °C for 12 h. The supernatant was discarded, and the precipitate was washed with deionized water and dried under vacuum at 60 °C to obtain the wear-resistant component. Mixture a was composed of lithium hydroxide ethanol solution and graphene oxide dispersion at a volume ratio of 1:1. The lithium hydroxide ethanol solution was composed of lithium hydroxide and anhydrous ethanol at a ratio of 0.2 g: 20 mL, and the graphene oxide dispersion was composed of graphene oxide and anhydrous ethanol at a ratio of 100 mg: 30 mL.

[0058] The crosslinking agent is glutaraldehyde, and the packaging base paper is white cardboard.

[0059] Comparative Example 2

[0060] Compared with Example 3, the siloxane-grafted quaternized cellulose in Example 3 was replaced with the substance in Comparative Example 1, and the remaining raw materials and preparation process were the same as in Example 3.

[0061] Comparative Example 3

[0062] Compared with Example 3, the wear-resistant component in Example 3 was replaced with graphene oxide, while the other raw materials and preparation process were the same as in Example 3.

[0063] The packaging papers obtained in Examples 3-5 and Comparative Examples 2-3 were subjected to performance tests, and the test procedures are as follows:

[0064] I. Antibacterial properties: The antibacterial properties of the coating were determined according to QB / T2591-2003, and the antibacterial rate (%) was determined by the number of recovered bacteria after 24 hours.

[0065] II. Waterproof performance: At room temperature, each group of packaging paper was cut into 10mm×15mm pieces. The contact angle was measured using an optical contact angle meter and the pendant drop method. The larger the contact angle, the better the water resistance.

[0066] III. Abrasion resistance: Cut each group of paper into 150×400mm pieces as the base material, which is then attached to the slider and rubs against the base material. The dynamic friction coefficient is tested in accordance with GB / T10006-1988 "Determination of Coefficient of Friction of Plastic Films and Sheets".

[0067] The test results are shown in Table 1:

[0068] Table 1

[0069] project Example 3 Example 4 Example 5 Comparative Example 2 Comparative Example 3 Escherichia coli inhibition rate (%) 99.94 99.96 99.98 99.92 98.45 Staphylococcus aureus inhibition rate 99.91 99.94 99.88 99.90 97.24 Candida albicans inhibition rate (%) 99.93 99.95 99.97 99.93 97.86 Contact angle (°) 92 95 99 88 89 coefficient of kinetic friction 0.35 0.28 0.22 0.39 0.45

[0070] As can be seen from Table 1, compared with Comparative Examples 2 and 3, the packaging paper obtained in Examples 3, 4 and 5 has good antibacterial, waterproof and abrasion-resistant properties.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production process for antibacterial and wear-resistant packaging paper, characterized in that, Includes the following steps: S1. Polyvinyl alcohol is added to deionized water and stirred at 95°C to dissolve it to obtain a PVA solution. After mechanical stirring and cooling to room temperature, siloxane-grafted quaternized cellulose suspension, wear-resistant components and crosslinking agent are added. After stirring at room temperature for 1 hour, an antibacterial coating solution is obtained. S2. Apply the antibacterial coating liquid evenly to the surface of the packaging base paper, dry at 90-100℃ for 30-60 minutes, and cool to room temperature to obtain the antibacterial and wear-resistant packaging paper. Siloxane-grafted quaternized cellulose is prepared by the following steps: Step a: Add microcrystalline cellulose, sodium hydroxide solution and epichlorohydrin to a reaction vessel, stir and react at 60-65℃ for 6 hours, filter to obtain filter cake, wash the filter cake with isopropanol and transfer it to a reaction vessel containing octadecylamine isopropanol solution, stir and react at 80℃ for 3-5 hours, filter, wash and dry the filter cake to obtain quaternized cellulose. Step b: Add quaternized cellulose and dihydro-3-[3-(trimethoxysilyl)propyl]furan-2,5-dione to anhydrous DMF, stir for 3-5 min, and then stir and react at 120°C for 15-20 h under nitrogen protection. Allow to stand and precipitate, filter and dry the filter cake to obtain siloxane-grafted quaternized cellulose. In step a, the ratio of microcrystalline cellulose, sodium hydroxide solution, epichlorohydrin and octadecylamine is 10g:250mL:120-150mL:20-30g, the sodium hydroxide solution has a mass fraction of 10%, and the octadecylamine isopropanol solution is composed of octadecylamine and isopropanol in a ratio of 1g:10mL. In step b, the ratio of quaternized cellulose, dihydro-3-[3-(trimethoxysilyl)propyl]furan-2,5-dione and anhydrous DMF is 1g:3-5g:60-100mL; The wear-resistant component is prepared through the following steps: Anhydrous ethanol and zinc acetate dihydrate were added to a flask and stirred at 70-75°C for 30 min. A mixture of lithium hydroxide ethanol solution and graphene oxide dispersion (a) was added dropwise. After the addition was completed, the mixture was refluxed for 30-60 min. After cooling to room temperature, the reaction product was mixed with n-hexane at a volume ratio of 1:2 and kept at 4°C for 12 h. The supernatant was discarded, and the precipitate was washed with deionized water and dried under vacuum at 60°C to obtain the wear-resistant component. The ratio of anhydrous ethanol, zinc acetate dihydrate, lithium hydroxide, and graphene oxide is 50 mL: 0.55 g: 0.2 g: 60-100 mg.

2. The production process of an antibacterial and wear-resistant packaging paper according to claim 1, characterized in that, In step S1, the mass fraction of the PVA solution is 8-13%, the amount of siloxane-grafted quaternized cellulose is 0.25-0.75 times the mass of polyvinyl alcohol, and the amounts of crosslinking agent and wear-resistant component are the same as the amount of siloxane-grafted quaternized cellulose.

3. An antibacterial and wear-resistant packaging paper, characterized in that, Prepared by the production process described in any one of claims 1-2.