Antibacterial and antiviral assistant, preparation process and antibacterial and antiviral decorative paper

Abstract

The invention discloses an antibacterial and antiviral assistant, a preparation process and antibacterial and antiviral decorative paper, and relates to the technical field of decorative paper.The antibacterial and antiviral assistant is prepared from, by weight, 10-15 parts of eucalyptus oil extract, 4-6 parts of grapefruit seed extract, 45-58 parts of plant glycerin, 100-120 parts of ethyl alcohol, 1-5 parts of xanthan gum, 1-2 parts of citric acid and 800-1000 parts of deionized water. The invention has the effects of long-acting property, high efficiency, safety and no toxicity in the aspects of antibiosis and antivirus.

Description

Technical Field

[0001] The present invention relates to the technical field of decorative papers, and particularly to an antibacterial and antiviral auxiliary agent, a preparation process, and an antibacterial and antiviral decorative paper. Background Art

[0002] As a material widely used in the field of interior decoration, the aesthetics and practicality of decorative papers make them the first choice for furniture, wall, and floor decoration. However, during daily use, decorative papers are often exposed to various microbial environments. Especially in high-traffic areas such as hospitals, schools, and public transportation facilities, the surface of decorative papers is prone to becoming a breeding ground for bacteria and viruses. These microorganisms can not only damage the aesthetics and physical properties of decorative papers but also may become a transmission medium for infectious diseases, affecting human health.

[0003] Traditional decorative papers rarely add antibacterial and antiviral components during the production process. Or even if added, their effects are often greatly reduced due to insufficient component stability and short action time. In addition, existing antibacterial and antiviral materials usually rely on heavy metals or chemical compounds. Although these substances can inhibit microbial growth, they may also pose potential risks to the environment and human health. Therefore, it is particularly urgent and important to develop an environmentally friendly, highly efficient, and long-lasting antibacterial and antiviral decorative paper. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide an antibacterial and antiviral auxiliary agent, a preparation process, and an antibacterial and antiviral decorative paper.

[0005] The above object of the present invention is achieved through the following technical solutions: An antibacterial and antiviral auxiliary agent, comprising the following components in parts by weight: Eucalyptus oil extract 10 - 15 parts; Grapefruit seed extract 4 - 6 parts; Plant glycerol 45 - 58 parts; Ethanol 100 - 120 parts; Xanthan gum 1 - 5 parts; Citric acid 1 - 2 parts; Deionized water 800 - 1000 parts.

[0006] Through the synergistic effect of eucalyptus oil extract, grapefruit seed extract, vegetable glycerin, ethanol, xanthan gum, citric acid and deionized water, the present invention achieves excellent antibacterial and antiviral effects. In the application of decorative paper, pathogenic microorganisms may breed on the paper surface, affecting hygiene and safety. Therefore, the antibacterial and antiviral properties of decorative paper are particularly important. Cineole and terpenoid compounds in eucalyptus oil extract can damage the cell membrane of microorganisms, rendering them inactive, thus forming a long-lasting antibacterial layer on the surface of decorative paper. Grapefruit seed extract is rich in flavonoid compounds, which can inhibit the synthesis of viral proteins and prevent viruses from attaching to and spreading on the paper surface.

[0007] Secondly, grapefruit seed extract and eucalyptus oil extract also have a certain synergistic effect. Cineole in eucalyptus oil extract can damage the membrane structure of microbial cells, causing the leakage of cell contents, while flavonoid compounds in grapefruit seed extract can further inhibit the metabolic reactions inside microorganisms. When these two extracts act together, they can not only physically damage the structure of microorganisms, but also inhibit the recovery and adaptation of microorganisms from the biochemical level, forming a more comprehensive protection mechanism. In addition, the interaction between terpenoid compounds in eucalyptus oil extract and flavonoid compounds in grapefruit seed extract may also generate new antibacterial pathways. For example, the combination of naringenin and cineole may produce a synergistic effect by changing cell signal transduction or affecting the metabolites of cells, making the antibacterial effect more persistent and effective.

[0008] In addition, vegetable glycerin and ethanol can not only act as solvents, but also improve the permeability of active ingredients, making the additives more evenly distributed on the surface of decorative paper and enhancing the overall antibacterial and antiviral effects. Xanthan gum, as a stabilizer, ensures that the additives are not easily stratified after being coated on the decorative paper and maintains uniformity. The addition of citric acid can adjust the pH to an appropriate range, thereby enhancing the inhibitory effect on pathogenic microorganisms and improving the stability and persistence of the additives on the decorative paper. The reasonable formulation of this additive enables it to be widely used in antibacterial protective decorative materials for household decorative paper, wallpaper and public places.

[0009] Furthermore, it also includes calendula extract, and the weight parts of the calendula extract are 3 to 5 parts.

[0010] By adding calendula extract, the present invention further enhances the anti-inflammatory and antioxidant properties of decorative paper. Flavonoids and triterpenoid compounds in calendula extract can reduce the degradation caused by microorganisms on the paper surface and extend the service life of decorative paper. Calendula extract is a powerful anti-inflammatory and healing agent, very gentle on the skin, can enhance the antiviral effect of grapefruit seed extract, and at the same time provide an additional protective layer, suitable for use on surfaces with frequent contact.

[0011] Furthermore, it also includes witch hazel extract, and the weight parts of the witch hazel extract are 3 to 5 parts.

[0012] By adding witch hazel extract, the antibacterial and antiviral properties of the decorative paper become more persistent. Witch hazel extract is rich in tannins and flavonoids, which can react with volatile organic compounds (such as eucalyptol) in eucalyptus oil to form a more stable complex. This complex can enhance the resistance of the wood surface to microorganisms and prevent bacteria from growing on the surface of the decorative paper. In addition, this extract can enhance the overall antioxidant effect of the additives, enabling the decorative paper to maintain its antibacterial and antiviral effects even under light and air exposure conditions. Witch hazel extract contains abundant tannins and antioxidant components, Furthermore, it also includes turmeric extract, and the weight portion of the turmeric extract is 4 - 5 parts.

[0013] After adding turmeric extract, the anti - inflammatory and antioxidant effects of the additives are further enhanced, strengthening the durability of the decorative paper. Curcumin can inhibit oxidative stress reactions and prevent the degradation of decorative paper caused by microorganisms. Secondly, curcumin and the antiviral components (such as naringin) in grapefruit seed extract can enhance their antiviral activity by enhancing their adsorption ability to cells. At the same time, curcumin acts synergistically with calendula and witch hazel extracts, which can improve the overall stability of the additives, ensuring that the decorative paper still has good antibacterial and antiviral properties after long - term use.

[0014] Furthermore, it also includes silica nanoparticles, and the weight portion of the silica nanoparticles is 4 - 5 parts.

[0015] By adding silica nanoparticles, the antiviral effect on the surface of the decorative paper is enhanced. Silica nanoparticles can improve the adsorption ability of active ingredients, make the antibacterial components evenly distributed on the paper surface, and at the same time increase the contact area between the active substances and microorganisms, enhancing the bactericidal effect. In addition, these nanoparticles can also improve the adhesion of the additives to the decorative paper, ensuring that their antibacterial and antiviral functions remain effective after long - term use.

[0016] Furthermore, it also includes vitamin C, and the weight portion of the vitamin C is 1 - 2 parts.

[0017] The addition of vitamin C can enhance the antioxidant ability of the decorative paper and extend its service life. Vitamin C can reduce free radicals, reduce the degradation of active ingredients, and form stable organic compounds with eucalyptus oil extract and witch hazel extract, improving the antioxidant ability of the additives and enabling the decorative paper to maintain its antibacterial properties during long - term use.

[0018] Furthermore, it also includes zinc sulfate, and the weight portion of the zinc sulfate is 2 - 3 parts.

[0019] By adding zinc sulfate, the antiviral properties of the decorative paper are further enhanced. Zinc ions have the ability to inhibit virus replication and can enhance the microbial barrier function, making the decorative paper more protective in environments with high contact frequencies. Secondly, zinc ions can react with naringin in grapefruit seed extract and terpenoids in lavender oil extract to form stable zinc complexes. In the antiviral mechanism, these complexes enhance the protective effect of the cell membrane and reduce the invasiveness of the virus. At the same time, zinc ions form stable complexes with lavender oil extract, further enhancing the antiviral performance.

[0020] Furthermore, it also includes a green tea polyphenol complex, and the weight parts of the green tea polyphenol complex are 5 - 6 parts.

[0021] The addition of the green tea polyphenol complex enhances the antioxidant and antibacterial abilities of the decorative paper. Polyphenols in green tea (especially catechins) can form synergistic antioxidant and antiviral complexes with volatile organic compounds in eucalyptus oil extract and anti-inflammatory components in calendula extract, forming a stable antioxidant barrier to prevent the decorative paper from discoloring and aging due to oxidation. At the same time, this complex can improve the bioavailability of the active ingredients, making the antibacterial effect of the decorative paper more persistent.

[0022] A preparation method of the above antibacterial and antiviral auxiliary agent includes the following steps: A1: Mix plant glycerol and ethanol evenly in proportion; A2: Add zinc sulfate and green tea polyphenol complex one by one, and continue to stir until completely dissolved; then, add eucalyptus oil extract, grapefruit seed extract, tea tree oil extract, calendula extract, witch hazel extract, turmeric extract, vitamin C and silica nanoparticles in sequence, ensuring that each component is fully stirred and evenly distributed; A3: Add xanthan gum and slowly stir until completely dissolved; A4: Use citric acid to adjust the pH to 5.5 - 6.5 to optimize the antiviral activity and stability; A5: Slowly add deionized water to the above mixture and stir for at least 20 minutes until evenly mixed.

[0023] A preparation method of antibacterial and antiviral decorative paper using the above antibacterial and antiviral auxiliary agent includes the following steps: S1: Select a suitable base paper; S2: Uniformly coat the antiviral agent on the surface of the base paper by spraying or roll coating; S3: Send the paper coated with the antiviral agent into a dryer for drying, and control the temperature at 50°C - 70°C.

[0024] Compared with the prior art, the beneficial effects of the present invention are mainly reflected in the following aspects: The antibacterial and antiviral adjuvant used in the present invention is mainly composed of natural extracts, such as eucalyptus oil, grapefruit seed, calendula and witch hazel extracts, etc. These components have higher biocompatibility and environmental friendliness compared with traditional chemical compounds and heavy metals. These natural components are not only gentle and harmless to the human body, but also reduce the risk of environmental pollution, meeting the current development trend of green environmental protection.

[0025] Secondly, through the synergistic effect of eucalyptus oil extract and grapefruit seed extract, and the enhanced cooperation of witch hazel and calendula, the present invention shows long-term effectiveness and high efficiency in antibacterial and antiviral aspects. Especially the added silica nanoparticles and green tea polyphenol complex enhance the adsorption and stability of the active ingredients on the paper surface, enabling the decorative paper to maintain good antibacterial and antiviral effects even after long-term use or in extreme environments. Specific Embodiments

[0026] The present invention will be described in detail below in conjunction with the embodiments.

[0027] Example 1. Example 1 discloses an antibacterial and antiviral adjuvant, a preparation process and an antibacterial and antiviral decorative paper.

[0028] 1. Composition of the antibacterial and antiviral adjuvant formula (by weight) Eucalyptus oil extract: 10 parts Grapefruit seed extract: 4 parts Vegetable glycerol: 45 parts Ethanol: 100 parts Xanthan gum: 1 part Citric acid: 1 part Deionized water: 800 parts 2. Preparation steps of the antibacterial and antiviral adjuvant Step A1: Mix vegetable glycerol and ethanol in proportion, and stir for 10 minutes at room temperature (25 ± 2 °C) to make them evenly dispersed.

[0029] Step A2: Add grapefruit seed extract and eucalyptus oil extract in sequence, and continue to stir for 15 minutes to ensure that the components are fully dissolved and evenly distributed.

[0030] Step A3: Gradually add xanthan gum under stirring, and keep slow stirring (rotation speed 300 rpm) until xanthan gum is completely dissolved, so that the system forms a uniform and stable colloidal structure.

[0031] Step A4: Use citric acid to adjust the pH value of the system to 5.8, and conduct detection to ensure that the final pH value is within the range of 5.5 - 6.5 to optimize the antiviral activity and system stability.

[0032] Step A5: Gradually add deionized water and continuously stir for 20 minutes to finally form a uniform and transparent antibacterial and antiviral additive solution.

[0033] 3. Preparation steps of antibacterial and antiviral decorative paper S1: Select the base paper; S2: Uniformly coat the antibacterial and antiviral additive prepared above on the surface of the decorative paper by spraying, and control the coating amount at 10 g / m².

[0034] S3: Send the coated decorative paper into a dryer for drying, control the temperature at 60 °C, and the drying time is 15 minutes.

[0035] Example 2 discloses an antibacterial and antiviral additive, a preparation process, and antibacterial and antiviral decorative paper.

[0036] 1. Composition of the antibacterial and antiviral additive (by weight) Eucalyptus oil extract 12 parts Grapefruit seed extract 5 parts Vegetable glycerin 52 parts Ethanol 110 parts Xanthan gum 3 parts Citric acid 1.5 parts Deionized water 900 parts 2. Preparation steps of the antibacterial and antiviral additive Step A1: Mix vegetable glycerin and ethanol in proportion and stir at room temperature (25 ± 2 °C) for 10 minutes to make them uniformly dispersed.

[0037] Step A2: Add grapefruit seed extract and eucalyptus oil extract in sequence and continue to stir for 15 minutes to ensure that the components are fully dissolved and uniformly distributed.

[0038] Step A3: Gradually add xanthan gum under stirring and keep slow stirring (rotation speed 300 rpm) until xanthan gum is completely dissolved to form a homogeneous and stable colloidal structure in the system.

[0039] Step A4: Use citric acid to adjust the pH value of the system to 5.8 and conduct detection to ensure that the final pH value is within the range of 5.5 - 6.5 to optimize the antiviral activity and system stability.

[0040] Step A5: Gradually add deionized water and continuously stir for 20 minutes to finally form a uniform and transparent antibacterial and antiviral additive solution.

[0041] 3. Preparation steps of antibacterial and antiviral decorative paper S1: Select the base paper; S2: Spray and evenly coat the antibacterial and antiviral additive prepared above on the surface of the decorative paper, with the coating amount controlled at 10 g / m².

[0042] S3: Send the coated decorative paper into a dryer for drying, with the temperature controlled at 60 °C and the drying time being 15 minutes.

[0043] Example 3 discloses an antibacterial and antiviral additive, a preparation process, and an antibacterial and antiviral decorative paper.

[0044] 1. Composition of the antibacterial and antiviral additive (by weight) Eucalyptus oil extract: 15 parts Grapefruit seed extract: 6 parts Plant glycerol: 58 parts Ethanol: 120 parts Xanthan gum: 5 parts Citric acid: 2 parts Deionized water: 1000 parts 2. Preparation steps of the antibacterial and antiviral additive Step A1: Mix plant glycerol and ethanol in proportion and stir for 10 minutes at room temperature (25 ± 2 °C) to make them evenly dispersed.

[0045] Step A2: Add grapefruit seed extract and eucalyptus oil extract in sequence and continue stirring for 15 minutes to ensure that the components are fully dissolved and evenly distributed.

[0046] Step A3: Gradually add xanthan gum under stirring and keep slow stirring (rotation speed 300 rpm) until xanthan gum is completely dissolved to form a homogeneous and stable colloidal structure in the system.

[0047] Step A4: Use citric acid to adjust the pH value of the system to 5.8 and conduct detection to ensure that the final pH value is within the range of 5.5 - 6.5 to optimize the antiviral activity and system stability.

[0048] Step A5: Gradually add deionized water and keep stirring for 20 minutes to finally form a uniform and transparent antibacterial and antiviral additive solution.

[0049] 3. Preparation steps of the antibacterial and antiviral decorative paper S1: Select the base paper; S2: Spray and evenly coat the antibacterial and antiviral additive prepared above on the surface of the decorative paper, with the coating amount controlled at 10 g / m².

[0050] S3: Send the coated decorative paper into a dryer for drying, with the temperature controlled at 60 °C and the drying time being 15 minutes.

[0051] Example 4. Example 4 discloses an antibacterial and antiviral additive, a preparation process, and an antibacterial and antiviral decorative paper.

[0052] 1. Composition of the antibacterial and antiviral additive (by weight) Eucalyptus oil extract: 15 parts Grapefruit seed extract: 6 parts Calendula extract: 3 parts Plant glycerol: 58 parts Ethanol: 120 parts Xanthan gum: 5 parts Citric acid: 2 parts Deionized water: 1000 parts 2. Preparation steps of the antibacterial and antiviral additive Step A1: Mix plant glycerol and ethanol in proportion and stir for 10 minutes at room temperature (25 ± 2°C) to make them evenly dispersed.

[0053] Step A2: Add grapefruit seed extract, eucalyptus oil extract, and calendula extract in sequence and continue stirring for 15 minutes to ensure that the components are fully dissolved and evenly distributed.

[0054] Step A3: Gradually add xanthan gum under stirring and keep slow stirring (rotation speed 300 rpm) until xanthan gum is completely dissolved to form a homogeneous and stable colloidal structure in the system.

[0055] Step A4: Use citric acid to adjust the pH value of the system to 5.8 and conduct tests to ensure that the final pH value is within the range of 5.5 - 6.5 to optimize the antiviral activity and system stability.

[0056] Step A5: Gradually add deionized water and keep stirring for 20 minutes to finally form a uniform and transparent antibacterial and antiviral additive solution.

[0057] 3. Preparation steps of the antibacterial and antiviral decorative paper S1: Select the base paper; S2: Evenly coat the antibacterial and antiviral additive prepared above on the surface of the decorative paper by spraying, and control the coating amount at 10 g / m².

[0058] S3: Send the coated decorative paper into a dryer for drying, control the temperature at 60°C, and the drying time at 15 minutes.

[0059] Example 5. Example 5 discloses an antibacterial and antiviral additive, a preparation process, and an antibacterial and antiviral decorative paper.

[0060] 1. Composition of the antibacterial and antiviral additive (by weight) Eucalyptus oil extract: 15 parts Grapefruit seed extract: 6 parts 3 parts of calendula extract 3 parts of witch hazel extract 58 parts of vegetable glycerin 120 parts of ethanol 5 parts of xanthan gum 2 parts of citric acid 1000 parts of deionized water 2. Preparation steps of antibacterial and antiviral additive Step A1: Mix vegetable glycerin and ethanol in proportion and stir for 10 minutes at room temperature (25±2°C) to make them evenly dispersed.

[0061] Step A2: Add grapefruit seed extract, eucalyptus oil extract, calendula extract and witch hazel extract in sequence, and continue to stir for 15 minutes to ensure that the ingredients are fully dissolved and evenly distributed.

[0062] Step A3: Gradually add xanthan gum under stirring and keep slow stirring (rotation speed 300 rpm) until xanthan gum is completely dissolved to form a homogeneous and stable colloidal structure in the system.

[0063] Step A4: Adjust the pH value of the system to 5.8 with citric acid and conduct detection to ensure that the final pH value is within the range of 5.5 - 6.5 to optimize the antiviral activity and system stability.

[0064] Step A5: Gradually add deionized water and continue to stir for 20 minutes to finally form a uniform and transparent antibacterial and antiviral additive solution.

[0065] 3. Preparation steps of antibacterial and antiviral decorative paper S1: Select the base paper; S2: Evenly coat the antibacterial and antiviral additive prepared above on the surface of the decorative paper by spraying, and control the coating amount at 10 g / m².

[0066] S3: Send the coated decorative paper into a dryer for drying, control the temperature at 60°C, and the drying time is 15 minutes.

[0067] Example 6 discloses an antibacterial and antiviral additive, a preparation process and an antibacterial and antiviral decorative paper.

[0068] 1. Composition of antibacterial and antiviral additive (by weight parts) 15 parts of eucalyptus oil extract 6 parts of grapefruit seed extract 3 parts of calendula extract 3 parts of witch hazel extract 4 parts of turmeric extract 58 parts of vegetable glycerin 120 parts of ethanol 5 parts of xanthan gum 2 parts of citric acid 1000 parts of deionized water 2. Preparation steps of antibacterial and antiviral additives Step A1: Mix plant glycerol and ethanol in proportion and stir for 10 minutes at room temperature (25±2°C) to make them evenly dispersed.

[0069] Step A2: Add grapefruit seed extract, eucalyptus oil extract, calendula extract, witch hazel extract and turmeric extract in sequence, and continue to stir for 15 minutes to ensure that the components are fully dissolved and evenly distributed.

[0070] Step A3: Gradually add xanthan gum under stirring and keep slow stirring (rotation speed 300 rpm) until the xanthan gum is completely dissolved to form a homogeneous and stable colloidal structure in the system.

[0071] Step A4: Adjust the pH value of the system to 5.8 with citric acid and conduct detection to ensure that the final pH value is within the range of 5.5 - 6.5 to optimize the antiviral activity and system stability.

[0072] Step A5: Gradually add deionized water and continue to stir for 20 minutes to finally form a uniform and transparent antibacterial and antiviral additive solution.

[0073] 3. Preparation steps of antibacterial and antiviral decorative paper S1: Select the base paper S2: Uniformly coat the antibacterial and antiviral additives prepared above on the surface of the decorative paper by spraying, and control the coating amount at 10 g / m².

[0074] S3: Send the coated decorative paper into a dryer for drying, control the temperature at 60°C, and the drying time is 15 minutes.

[0075] Example 7 discloses an antibacterial and antiviral additive, a preparation process and an antibacterial and antiviral decorative paper.

[0076] 1. Composition of the antibacterial and antiviral additive formula (by weight) 15 parts of eucalyptus oil extract 6 parts of grapefruit seed extract 3 parts of calendula extract 3 parts of witch hazel extract 4 parts of turmeric extract 5 parts of silica nanoparticles 58 parts of plant glycerol 120 parts of ethanol 5 parts of xanthan gum 2 parts of citric acid 1000 parts of deionized water 2. Preparation steps of antibacterial and antiviral additives Step A1: Mix vegetable glycerin and ethanol in proportion and stir at room temperature (25±2℃) for 10 minutes to make them evenly dispersed.

[0077] Step A2: Add grapefruit seed extract, eucalyptus oil extract, calendula extract, witch hazel extract, turmeric extract and silica nanoparticles in sequence and continue stirring for 15 minutes to ensure that the ingredients are fully dissolved and evenly distributed.

[0078] Step A3: While stirring, gradually add xanthan gum and keep stirring slowly (300 rpm) until the xanthan gum is completely dissolved, so that the system forms a uniform and stable colloidal structure.

[0079] Step A4: Use citric acid to adjust the system pH to 5.8, and perform testing to ensure that the final pH is within the range of 5.5 to 6.5 to optimize the antiviral activity and system stability.

[0080] Step A5: gradually add deionized water and continue stirring for 20 minutes to finally form a uniform and transparent antibacterial and antiviral auxiliary agent solution.

[0081] 3. Preparation steps of antibacterial and antiviral decorative paper S1: Select base paper; S2: The antibacterial and antiviral additive prepared above is evenly coated on the surface of the decorative paper by spraying, and the coating amount is controlled at 10g / m².

[0082] S3: The coated decorative paper is sent to a dryer for drying. The temperature is controlled at 60° C. and the drying time is 15 minutes.

[0083] Example 8, Example 8 discloses an antibacterial and antiviral auxiliary agent, a preparation process and antibacterial and antiviral decorative paper.

[0084] 1. Antibacterial and antiviral additives formula composition (by weight) Eucalyptus oil extract 15 parts 6 servings of grapefruit seed extract 3 parts of calendula extract 3 parts witch hazel extract 4 parts turmeric extract 5 parts of silicon dioxide nanoparticles Vitamin C 1.5 parts Vegetable glycerin 58 parts 120 parts of ethanol 5 parts xanthan gum 2 parts citric acid 1000 parts of deionized water 2. Preparation steps of the antibacterial and antiviral additive Step A1: Mix plant glycerol and ethanol in proportion and stir for 10 minutes at room temperature (25±2°C) to make them evenly dispersed.

[0085] Step A2: Sequentially add grapefruit seed extract, eucalyptus oil extract, calendula extract, witch hazel extract, turmeric extract, vitamin C and silica nanoparticles, and continue to stir for 15 minutes to ensure that the components are fully dissolved and evenly distributed.

[0086] Step A3: Gradually add xanthan gum under stirring and keep slow stirring (rotation speed 300 rpm) until the xanthan gum is completely dissolved to form a homogeneous and stable colloidal structure in the system.

[0087] Step A4: Use citric acid to adjust the pH value of the system to 5.8 and conduct detection to ensure that the final pH value is within the range of 5.5 - 6.5 to optimize the antiviral activity and system stability.

[0088] Step A5: Gradually add deionized water and continue to stir for 20 minutes to finally form a uniform and transparent antibacterial and antiviral additive solution.

[0089] 3. Preparation steps of the antibacterial and antiviral decorative paper S1: Select the base paper S2: Uniformly coat the antibacterial and antiviral additive prepared above on the surface of the decorative paper by spraying, and control the coating amount at 10 g / m².

[0090] S3: Send the coated decorative paper into a dryer for drying, control the temperature at 60°C, and the drying time is 15 minutes.

[0091] Example 9 discloses an antibacterial and antiviral additive, a preparation process and an antibacterial and antiviral decorative paper.

[0092] 1. Composition of the antibacterial and antiviral additive (by weight parts) 15 parts of eucalyptus oil extract 6 parts of grapefruit seed extract 3 parts of calendula extract 3 parts of witch hazel extract 4 parts of turmeric extract 5 parts of silica nanoparticles 1.5 parts of vitamin C 2 parts of zinc sulfate 58 parts of plant glycerol 120 parts of ethanol 5 parts of xanthan gum 2 parts of citric acid 1000 parts of deionized water 2. Preparation steps of the antibacterial and antiviral additive Step A1: Mix plant glycerol and ethanol in proportion and stir for 10 minutes at room temperature (25±2°C) to make them evenly dispersed.

[0093] Step A2: Add zinc sulfate and continue stirring until completely dissolved; then, successively add grapefruit seed extract, eucalyptus oil extract, calendula extract, witch hazel extract, turmeric extract, vitamin C, and silicon dioxide nanoparticles, and continue stirring for 15 minutes to ensure that the components are fully dissolved and evenly distributed.

[0094] Step A3: Gradually add xanthan gum under stirring and maintain slow stirring (rotation speed 300 rpm) until the xanthan gum is completely dissolved to form a homogeneous and stable colloidal structure in the system.

[0095] Step A4: Use citric acid to adjust the pH value of the system to 5.8 and conduct tests to ensure that the final pH value is within the range of 5.5 - 6.5 to optimize the antiviral activity and system stability.

[0096] Step A5: Gradually add deionized water and continue stirring for 20 minutes to finally form a uniform and transparent antibacterial and antiviral additive solution.

[0097] 3. Preparation steps of the antibacterial and antiviral decorative paper S1: Select the base paper S2: Uniformly coat the antibacterial and antiviral additive prepared above on the surface of the decorative paper by spraying, and control the coating amount at 10 g / m².

[0098] S3: Send the coated decorative paper into a dryer for drying, control the temperature at 60°C, and the drying time is 15 minutes.

[0099] Example 10 discloses an antibacterial and antiviral additive, a preparation process, and an antibacterial and antiviral decorative paper.

[0100] 1. Composition of the antibacterial and antiviral additive (by weight parts) 15 parts of eucalyptus oil extract 6 parts of grapefruit seed extract 3 parts of calendula extract 3 parts of witch hazel extract 4 parts of turmeric extract 5 parts of silicon dioxide nanoparticles 1.5 parts of vitamin C 2 parts of zinc sulfate 5 parts of green tea polyphenol complex 58 parts of plant glycerol 120 parts of ethanol 5 parts of xanthan gum 2 parts of citric acid 1000 parts of deionized water 2. Preparation steps of antibacterial and antiviral additives Step A1: Mix plant glycerol and ethanol in proportion and stir for 10 minutes at room temperature (25±2°C) to disperse them evenly.

[0101] Step A2: Add zinc sulfate and green tea polyphenol complex one by one and continue stirring until completely dissolved; then, add grapefruit seed extract, eucalyptus oil extract, calendula extract, witch hazel extract, turmeric extract, vitamin C and silica nanoparticles in sequence, and continue stirring for 15 minutes to ensure that the components are fully dissolved and evenly distributed.

[0102] Step A3: Gradually add xanthan gum under stirring and keep slow stirring (rotation speed 300 rpm) until xanthan gum is completely dissolved to form a homogeneous and stable colloidal structure in the system.

[0103] Step A4: Adjust the pH value of the system to 5.8 with citric acid and conduct detection to ensure that the final pH value is within the range of 5.5 - 6.5 to optimize the antiviral activity and system stability.

[0104] Step A5: Gradually add deionized water and continue stirring for 20 minutes to finally form a uniform and transparent antibacterial and antiviral additive solution.

[0105] 3. Preparation steps of antibacterial and antiviral decorative paper S1: Select the base paper; S2: Uniformly coat the antibacterial and antiviral additives prepared above on the surface of the decorative paper by spraying, and control the coating amount at 10 g / m².

[0106] S3: Send the coated decorative paper into a dryer for drying, control the temperature at 60°C, and the drying time is 15 minutes.

[0107] Control example Control example 1 1. Composition of antibacterial and antiviral additive formula (by weight parts) 58 parts of plant glycerol 120 parts of ethanol 5 parts of xanthan gum 2 parts of citric acid 1000 parts of deionized water 2. Preparation steps of antibacterial and antiviral additives Step A1: Mix plant glycerol and ethanol in proportion and stir for 10 minutes at room temperature (25±2°C) to disperse them evenly.

[0108] Step A2: Under stirring, gradually add xanthan gum and maintain slow stirring (rotation speed 300 rpm) until the xanthan gum is completely dissolved, forming a homogeneous and stable colloidal structure in the system.

[0109] Step A3: Use citric acid to adjust the pH value of the system to 5.8 and conduct a test to ensure that the final pH value is within the range of 5.5 - 6.5 to optimize the antiviral activity and system stability.

[0110] Step A4: Gradually add deionized water and continuously stir for 20 minutes to finally form a uniform and transparent antibacterial and antiviral auxiliary agent solution.

[0111] 3. Preparation steps of antibacterial and antiviral decorative paper S1: Select the base paper; S2: Uniformly coat the antibacterial and antiviral auxiliary agent prepared above on the surface of the decorative paper by spraying, and control the coating amount at 10 g / m².

[0112] S3: Send the coated decorative paper into a dryer for drying, control the temperature at 60 °C, and the drying time is 15 minutes.

[0113] Detection method (1) Appearance and stability detection Observe the antibacterial and antiviral auxiliary agent solutions obtained in Examples 1 - 10, which are light yellow transparent liquids without precipitation or stratification. After storing at 40 °C for 30 days, the system remains stable without obvious precipitation.

[0114] (2) Antibacterial and antiviral effect detection Use the agar diffusion method to conduct antibacterial experiments on Escherichia coli and Staphylococcus aureus.

[0115] Conduct a virus inactivation experiment to conduct a killing experiment on influenza virus (H1N1). After 1 hour, the virus survival rate is reduced to less than 1%, indicating that the auxiliary agent has excellent antibacterial and antiviral activity.

[0116] (3) Antibacterial and antiviral durability test Coat the auxiliary agent on the surface of a stainless steel sheet. After drying, conduct an antibacterial test every 24 hours and continuously monitor for 14 days.

[0117] Table 1

[0118] From the above test results, it can be seen that the antibacterial and antiviral auxiliary agent of the present invention has a good antibacterial and antiviral effect on decorative paper.

[0119] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. Any technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. An antibacterial and antiviral auxiliary agent, characterized in that: The composition comprises the following components in parts by weight: 10-15 parts of eucalyptus oil extract; 4-6 parts of grapefruit seed extract; 45-58 parts of vegetable glycerin; 100-120 parts of ethanol; 1-5 parts of xanthan gum; 1-2 parts of citric acid; 800-1000 parts of deionized water.

2. The antibacterial and antiviral auxiliary agent according to claim 1, characterized in that: The invention also comprises a marigold extract, wherein the weight proportion of the marigold extract is 3 to 5 parts.

3. The antibacterial and antiviral auxiliary agent according to claim 1, characterized in that: The invention also comprises witch hazel extract, wherein the weight proportion of the witch hazel extract is 3 to 5 parts.

4. The antibacterial and antiviral auxiliary agent according to claim 1, characterized in that: The invention also comprises a turmeric extract, wherein the weight proportion of the turmeric extract is 4 to 5 parts.

5. The antibacterial and antiviral auxiliary agent according to claim 1, characterized in that: The invention also comprises silicon dioxide nanoparticles, wherein the weight proportion of the silicon dioxide nanoparticles is 4 to 5 parts.

6. The antibacterial and antiviral auxiliary agent according to claim 1, characterized in that: It also includes vitamin C, and the weight portion of the vitamin C is 1 to 2 parts.

7. The antibacterial and antiviral auxiliary agent according to claim 1, characterized in that: It also includes zinc sulfate, and the weight proportion of the zinc sulfate is 2 to 3 parts.

8. The antibacterial and antiviral auxiliary agent according to claim 1, characterized in that: The invention also comprises a green tea polyphenol compound, wherein the weight proportion of the green tea polyphenol compound is 5 to 6 parts.

9. A method for preparing an antibacterial and antiviral auxiliary agent according to any one of claims 1 to 8, characterized in that: The following steps are involved: A1: Mix vegetable glycerin and ethanol in proportion; A2: Add zinc sulfate and green tea polyphenol complex one by one, and continue stirring until completely dissolved; then, add eucalyptus oil extract, grapefruit seed extract, tea tree oil extract, calendula extract, witch hazel extract, turmeric extract, vitamin C and silica nanoparticles in sequence, ensuring that each ingredient is fully stirred and evenly distributed; A3: Add xanthan gum and stir slowly until completely dissolved; A4: Use citric acid to adjust the pH to 5.5-6.5 to optimize antiviral activity and stability; A5: Slowly add deionized water to the above mixture and stir for at least 20 minutes to make it evenly mixed.

10. A method for preparing antibacterial and antiviral decorative paper containing the antibacterial and antiviral additive according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Choose the right base paper; S2: evenly apply the antiviral agent on the surface of the base paper by spraying or roller coating; S3: Send the paper coated with the antiviral agent into a dryer for drying, and the temperature is controlled at 50°C to 70°C.

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