Antibacterial and oil-removing tablecloth and production process thereof

Abstract

The present application relates to the technical field of tablecloths, and specifically discloses an antibacterial and oil-removing tablecloth and a production process thereof. The antibacterial and oil-removing tablecloth comprises a film layer, a fabric layer and a plastic layer, wherein the fabric layer and the plastic layer are bonded to each other, the fabric layer is a cotton fabric, and the film layer is solidified on the surface of the cotton fabric by a film-forming liquid, wherein the film-forming liquid comprises the following components in parts by weight: 16-19 parts of an aminopolysaccharide substance, Zn 2+ 8-12 parts of dopant, 20-26 parts of carboxylic acid, 70-72 parts of water and 7-11 parts of essential oil microcapsules, wherein the essential oil microcapsules contain aldehyde compounds, the components of the plastic layer include modified polyolefin and modified filler, polar groups are grafted on the molecular chain of the modified polyolefin, and the components of the modified filler include zinc oxide. The antibacterial and oil-removing tablecloth of the present application has good antibacterial and anti-mite effects and a long service life.

Description

Technical Field

[0001] The present application relates to the technical field of tablecloths, and more specifically, to an antibacterial and oil-removing tablecloth and a production process thereof. Background Art

[0002] In the related art, there is an antibacterial and oil-removing tablecloth. The cotton fabric is soaked in a solution containing a silver ion antibacterial agent, taken out and dried, and a polypropylene plastic layer is adhered to the other side to obtain a tablecloth with antibacterial function.

[0003] With respect to the above-mentioned related technologies, the inventors believe that although tablecloths with silver ions can play an antibacterial role, the cost of silver ion antibacterial agents is relatively high, and under the above-mentioned sanitary conditions, the presence of mites increases the activity of bacteria, which is not conducive to the effective contact between silver ions and bacteria, so its antibacterial effect is limited. In addition, since the animal and plant oils in the residues are easy to remain on the tablecloth, their long-term presence will also attract mites, thereby breeding bacteria. Summary of the invention

[0004] In the related art, the presence of mites increases the activity of bacteria, which affects the antibacterial performance of the tablecloth. In order to improve this defect, the present application provides an antibacterial and oil-removing tablecloth and a production process thereof.

[0005] In the first aspect, the present application provides an antibacterial and oil-removing tablecloth, which adopts the following technical solution:

[0006] An antibacterial and oil-removing tablecloth, characterized in that the antibacterial and oil-removing tablecloth comprises a film layer, a fabric layer and a plastic layer, the fabric layer and the plastic layer are bonded to each other, the fabric layer is a cotton fabric, the film layer is solidified on the surface of the cotton fabric by a film-forming liquid, and the film-forming liquid comprises the following components in parts by weight: 16-19 parts of aminopolysaccharide substances, Zn 2+ 8-12 parts of dopant, 20-26 parts of carboxylic acid, 70-72 parts of water and 7-11 parts of essential oil microcapsules, wherein the essential oil microcapsules contain aldehyde compounds, the components of the plastic layer include modified polyolefin and modified filler, polar groups are grafted on the molecular chain of the modified polyolefin, and the components of the modified filler include zinc oxide.

[0007] By adopting the above technical solution, under acidic conditions, the amino groups in the film-forming solution are positively charged, which will electrostatically interact with the negatively charged hydroxyl groups on the surface of the cotton fabric, so that the film layer will be attached to the cotton fabric; when the film layer contacts the residual liquid, the Zn in the film layer 2+ The dopant will come into contact with the bacteria in the residual liquid, producing a contact antibacterial effect: under this condition, Zn 2+, while the microbial cell membrane is negatively charged, the mutual attraction between the two will cause cell membrane damage, thus killing the bacteria; at the same time, when bacteria are present, under ultraviolet light, the metal ions in the membrane layer will absorb environmental energy to activate oxygen in the air or solution, resulting in active oxygen antibacterial effect: that is, under photocatalysis, O 2 and H 2 O reacts to generate H 2 O 2 , which in turn produces hydroxyl radicals, which can undergo redox reactions with bacteria to damage the cell membrane and lead to bacterial death. Due to the presence of aldehyde compounds in the membrane layer, they not only destroy the bacterial cell membrane through contact, but also inhibit the activity of acetylcholinesterase in the mite body; therefore, through the synergistic effects of contact antibacterial, active oxygen antibacterial and enzyme activity inhibition, the tablecloth has excellent antibacterial and anti-mite functions.

[0008] Animal and plant oil molecules are negatively charged, and they will combine with positively charged amino groups under electrostatic interaction, thereby reducing the permeability of oil. However, when there is too much oil, it may penetrate cotton fabrics and cause bacterial growth. The zinc oxide in the modified filler will activate the oxygen in the air into active oxygen under ultraviolet light, and then act on bacteria to achieve an antibacterial effect. At the same time, polar groups are grafted into the modified polypropylene molecular chain, so even if the oil penetrates the fabric layer, the plastic layer is not easily infiltrated by the oil; in addition, zinc oxide has a strong shielding ability against ultraviolet rays, which can improve the anti-aging ability of plastics.

[0009] Preferably, the Zn 2+ The dopant was prepared as follows: (1) the framework precursor and Zn 2+ The donor is added to N,N-dimethylformamide and mixed to obtain solution 1; the ligand is added to solution 1 to obtain solution 2; (2) solution 2 is heated and then cooled, centrifuged, refluxed and dried to obtain Zn 2+ Dopant.

[0010] By adopting the above technical solution, the framework precursor, ligand and Zn 2+ The donors are combined together through coordination reaction to obtain a stable framework structure of Zn 2+ Dopant.

[0011] Preferably, the framework precursor is zirconium chloride.

[0012] By adopting the above technical solution, during the framework formation process, the zirconium ions in the zirconium chloride can provide the central atoms of the framework, thereby causing a coordination reaction, thus helping to form Zn 2+ The framework structure of the dopant.

[0013] Preferably, the ligand is a compound containing a carboxyl group.

[0014] By adopting the above technical solution, since the carboxyl group can coordinate with the zirconium ion, it is beneficial to Zn 2+ Formation of dopant framework structure.

[0015] Preferably, the ligand is aminoterephthalic acid.

[0016] By adopting the above technical solution, under acidic conditions, the amino group in aminoterephthalic acid carries a positive charge, which can damage the cell membrane of bacteria and thus contribute to antibacterial properties.

[0017] Preferably, the essential oil microcapsules are prepared according to the following method: (1) a core material, polyoxyethylene sorbitan monooleate, glycerol and a carrier aqueous solution are mixed to form a mixed solution 1, a calcium chloride solution is prepared, and the calcium chloride solution is added to the mixed solution 1 to form a mixed solution 2; (2) the mixed solution 2 is heated and centrifuged to dry to obtain the essential oil microcapsules.

[0018] By adopting the above technical solution, under the action of polyoxyethylene sorbitan monooleate, the wall material will condense on the surface of the core material, so that essential oil microcapsules can be prepared.

[0019] Preferably, the core material comprises cinnamon essential oil.

[0020] By adopting the above technical solution, since cinnamon essential oil has an antibacterial effect on most microorganisms and the aldehyde substances contained therein can play an anti-mite effect, it is helpful to form essential oil microcapsules with antibacterial and anti-mite effects under the wrapping of the wall material.

[0021] Preferably, the core material is a mixture of cinnamon essential oil and cinnamaldehyde, and the weight percentage of cinnamaldehyde in the core material is 62.8-66.3%.

[0022] By adopting the above technical solution, since the core material itself contains cinnamaldehyde, the added cinnamaldehyde not only increases the aldehyde content in the essential oil microcapsules, but also prolongs the time required for the complete volatilization of cinnamaldehyde, thereby enhancing the antibacterial and anti-mite effects.

[0023] Preferably, in step (2), a curing agent is added to the mixed solution 2 after heating and before centrifugal drying, and the curing agent is glutaraldehyde.

[0024] By adopting the above technical scheme, since the cations of the calcium chloride solution and the anions in the carrier aqueous solution attract each other through electrostatic action, the added aldehyde curing agent can enhance the combination of the two, thereby helping to obtain microcapsules with more stable structures. At the same time, the amount of glutaraldehyde is optimized so that it not only acts on the wall material, but also introduces aldehyde groups into the microcapsules, thereby further enhancing the antibacterial and anti-mite effects.

[0025] In a second aspect, the present application provides a production process for an antibacterial and oil-removing tablecloth, which adopts the following technical solution.

[0026] A production process of an antibacterial and oil-removing tablecloth comprises the following steps:

[0027] (1) Prepare an acidic solution, add amino polysaccharides and stir, then add Zn 2+ dopant and essential oil microcapsules, and continue stirring to obtain a film-forming liquid; (2) mixing the modified polypropylene and the modified filler and melting them, and then injection molding and cooling them to obtain a plastic layer; (3) soaking cotton fabric in the film-forming liquid, and then taking it out to dry; (4) spreading the dried cotton fabric flat, and bonding the plastic layer to one side of the cotton fabric with an adhesive to obtain an antibacterial and oil-removing tablecloth.

[0028] By adopting the above technical scheme, cotton fabric can be made to have antibacterial and anti-mite functions by soaking it in a film-forming liquid, and then the cotton fabric is combined with a plastic layer by bonding, so that a tablecloth with excellent antibacterial, anti-mite and anti-aging properties can be prepared.

[0029] In summary, this application has the following beneficial effects:

[0030] 1. The antibacterial and degreasing tablecloth of the present application is prepared by mixing aminopolysaccharides, Zn 2+ The dopant and essential oil microcapsule are combined to improve the antibacterial and anti-mite effect of the tablecloth. At the same time, the presence of amino groups can also reduce the penetration ability of oil.

[0031] 2. In the present application, polar groups are grafted onto polypropylene, which helps to improve the adhesion of polypropylene. The modified fillers introduced later can alleviate the oxidation of polypropylene and also have antibacterial properties, thereby improving the anti-aging and antibacterial properties of the plastic layer.

[0032] 3. The method of the present application attaches materials with different functions to cotton fabrics by soaking and bonding, thereby preparing an antibacterial and oil-removing tablecloth with excellent performance. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with embodiments, preparation examples and comparative examples.

[0034] Zn 2+ Preparation example of dopant

[0035] The following is an explanation using Preparation Example 1.

[0036] Preparation Example 1

[0037] In this preparation example, Zn 2+The dopant was prepared according to the following method: (1) 3.44 g zirconium chloride, 3.57 g zinc nitrate hexahydrate and 740 g N,N-dimethylformamide were mixed to obtain a mixed solution 1; 3.74 g terephthalic acid was added to the mixed solution 1 to obtain a mixed solution 2; (2) the mixed solution 2 was heated at 120° C. for 24 h, cooled to room temperature and centrifuged with N,N-dimethylformamide to obtain a solid product 1, which was refluxed with acetone at 60° C. for 3 days and then dried at 100° C. for 12 h to obtain Zn 2+ Dopant.

[0038] Preparation Example 2

[0039] This Preparation Example is different from Preparation Example 1 in that terephthalic acid is replaced with aminoterephthalic acid.

[0040] Preparation example of essential oil microcapsules

[0041] Preparation Example 3

[0042] In this preparation example, essential oil microcapsules were prepared according to the following method: (1) 350 g of cinnamon essential oil, 230 g of polyoxyethylene sorbitan monooleate, 180 g of glycerol and 800 g of sodium alginate solution were mixed to form a mixed solution 1, and calcium chloride solution was added to the mixed solution 1 to form a mixed solution 2; (2) the mixed solution 2 was heated at 50° C. for 30 min, centrifuged with distilled water, and then dried at 40° C. for 4 h to obtain essential oil microcapsules.

[0043] Preparation Example 4

[0044] The difference between this preparation example and preparation example 3 is that the core material used to prepare the essential oil microcapsules is a mixture of cinnamon essential oil and cinnamaldehyde, wherein the total weight percentage of cinnamaldehyde in the core material is 62.1%.

[0045] As shown in Table 1, the difference between Preparation Examples 4-8 is that the weight percentage of total cinnamaldehyde in the core material used to prepare the essential oil microcapsules is different.

[0046] sample Preparation Example 4 Preparation Example 5 Preparation Example 6 Preparation Example 7 Preparation Example 8 Cinnamaldehyde 62.1％ 62.8％ 64.55％ 66.3％ 66.8％

[0047] Preparation Example 9

[0048] The difference between this preparation example and preparation example 8 is that 3 g of glutaraldehyde curing agent is also added to the mixed solution 2 in step (2).

[0049] As shown in Table 2, the difference between Preparation Examples 9-13 is that the amount of glutaraldehyde used is different.

[0050] sample Preparation Example 9 Preparation Example 10 Preparation Example 11 Preparation Example 12 Preparation Example 13 Glutaraldehyde(g) 3 4 5.5 7 8

[0051] Preparation example of modified polypropylene

[0052] Preparation Example 14

[0053] In this preparation example, modified polypropylene was prepared according to the following method: 110 g of dicumyl peroxide, 160 g of styrene and 180 g of maleic anhydride were dissolved in a flask, 200 g of polypropylene was added under stirring, stirring was continued for 1 hour, and then transferred to a single screw extruder for melt grafting, the screw temperature was controlled at 200°C, and after extrusion, the modified polypropylene was cooled and dried to obtain.

[0054] Preparation example of modified filler

[0055] Preparation Example 15

[0056] In this preparation example, the modified filler was prepared according to the following method: 150 g of silane coupling agent was emulsified in 500 g of water for 30 min, 120 g of zinc oxide was added, the mixture was heated at 110° C. and stirred, and dried to obtain product 1; 80 g of maleic anhydride grafted polypropylene wax was dissolved in 120 g of xylene, product 1 was added, the mixture was heated at 100° C. and stirred, and the modified filler was obtained after drying.

[0057] Example

[0058] Examples 1-5

[0059] The following description is given by taking Example 1 as an example.

[0060] Example 1

[0061] In this embodiment, Zn 2+ The dopant was prepared according to Preparation Example 1, the essential oil microcapsules were prepared according to Preparation Example 3, the modified polypropylene was prepared according to Preparation Example 14, and the modified filler was prepared according to Preparation Example 15.

[0062] In this embodiment, the antibacterial degreasing tablecloth is prepared according to the following steps: (1) 180 g of acetic acid is added to 650 g of water, 140 g of chitosan is added thereto and stirred, and then 76 g of Zn is added. 2+ dopant and 64g of essential oil microcapsules, continue stirring to obtain a film-forming liquid; (2) mix and melt 150g of modified polypropylene and 50g of modified filler, control the temperature at 190°C, and then inject and cool to obtain a plastic layer; (3) soak cotton fabric in the film-forming liquid for 4h, and then dry it at 40°C for 15min; (4) spread the dried cotton fabric flat, and use epoxy resin adhesive to bond the plastic layer to one side of the cotton fabric to obtain an antibacterial and oil-removing tablecloth.

[0063] As shown in Table 3, the difference between Examples 1-5 is that the composition ratio of the film-forming liquid is different.

[0064] Table 3

[0065]

[0066]

[0067] Example 6

[0068] The difference between this embodiment and embodiment 5 is that Zn 2+ The dopant was prepared according to Preparation Example 2.

[0069] Example 7

[0070] The difference between this embodiment and embodiment 6 is that the essential oil microcapsules are prepared according to preparation example 4.

[0071] As shown in Table 4, the difference between Examples 7-16 is that the preparation examples of essential oil microcapsules are different.

[0072] sample Preparation example of essential oil microcapsules sample Preparation example of essential oil microcapsules Example 7 Preparation Example 4 Example 12 Preparation Example 9 Example 8 Preparation Example 5 Embodiment 13 Preparation Example 10 Example 9 Preparation Example 6 Embodiment 14 Preparation Example 11 Example 10 Preparation Example 7 Embodiment 15 Preparation Example 12 Embodiment 11 Preparation Example 8 Example 16 Preparation Example 13

[0073] Comparative Example

[0074] Comparative Example 1

[0075] A tablecloth is prepared according to the following method: 40g of silver nitrate and 900g of water are mixed, cotton fabric is soaked in the mixture for 1 hour at room temperature, dried at 60°C, and then a polypropylene plastic layer is bonded on one side of the cotton fabric with an epoxy resin adhesive.

[0076] Comparative Example 2

[0077] The difference between this comparative example and Example 3 is that only zinc nitrate is added to the film-forming solution as Zn 2+ Donor.

[0078] Comparative Example 3

[0079] The difference between this comparative example and Example 3 is that the film-forming liquid does not contain essential oil microcapsules.

[0080] Comparative Example 4

[0081] The difference between this comparative example and Example 3 is that the components for preparing the plastic layer do not contain fillers.

[0082] Performance testing methods

[0083] According to the formulas and steps of the embodiments and comparative examples, tablecloth samples of different sizes were taken to conduct antibacterial, anti-mite and anti-aging tests.

[0084] 1. Antibacterial performance operation steps: Place the tablecloth sample disc on a sterile workbench for sterilization, then dilute it to 10 -4The E. coli suspension was inoculated into the culture medium with beef extract and peptone as raw materials. Finally, the tablecloth sample disc was spread and fixed in the culture medium inoculated with the bacterial suspension, and placed in a constant temperature incubator at 37°C for 24 hours, and the size of the inhibition zone was recorded. The results are shown in Table 5.

[0085] sample Inhibition zone size (mm) sample Inhibition zone size (mm) Example 1 8.1 Embodiment 11 12.3 Example 2 9.5 Example 12 13.5 Example 3 10.8 Embodiment 13 13.8 Example 4 10.5 Embodiment 14 14.2 Example 5 10.3 Embodiment 15 13.7 Example 6 11.0 Example 16 13.2 Example 7 11.2 Comparative Example 1 7.1 Example 8 12.1 Comparative Example 2 7.5 Example 9 12.8 Comparative Example 3 7.3 Example 10 12.6 Comparative Example 4 7.4

[0086] 2. Anti-mite performance

[0087] Operation steps: prepare two culture dishes, one as the experimental group and the other as the control group. Cover the culture dish of the experimental group with a layer of tablecloth sample. Apply a mixture of white oil and vaseline (1:1) around the inner and outer edges of the two culture dishes to prevent mites from crawling out. Place 100 adult mites that have been raised for one week after entering the adult stage in the center of the two culture dishes, and add 0.03g of mite feed. Then place the two culture dishes in an incubator at 25±1℃ and 75±5% humidity for 24 hours. After taking out, observe the survival status of the mites under a microscope. Those without limbs are considered dead. No mites died in the control group. Record the mortality rate of mites in the culture dishes of the experimental group. The results are shown in Table 6.

[0088] Table 6

[0089]

[0090]

[0091] 3. Anti-aging operation steps: According to "ASTM G154 Cycle 1", the tablecloth is subjected to UV accelerated aging test, with a radiation wavelength of 340nm and an ultraviolet radiation intensity of 0.89W / m 2 , using continuous illumination, the blackboard temperature was 50°C, and the tensile properties test was carried out in accordance with GB / T1040.1-2006. The tensile rate was 20 mm / min, the aging time was 100 days, and the tensile strength retention rate was recorded. The relevant results are shown in Table 7.

[0092] sample Tensile strength retention rate (%) Example 3 42 Comparative Example 1 19 Comparative Example 4 27

[0093] Combining Examples 1-5 and Comparative Example 1 and Table 5, it can be seen that the antibacterial properties of Examples 1-5 are greater than those of Comparative Example 1, indicating that when the soaking liquid contains only Ag + When it is used, it only has a contact antibacterial effect with the residual liquid, and cannot effectively inhibit the bacteria transmitted by mites. The antibacterial and oil-removing tablecloth of the present application can not only play a contact antibacterial effect, but also have an active oxygen antibacterial effect, and can inhibit the activity of mites, thereby more effectively improving the antibacterial performance.

[0094] Combining Example 3 with Comparative Example 2 and Table 5, it can be seen that the antibacterial performance of Example 3 is greater than that of Comparative Example 2, indicating that compared with single zinc nitrate, the addition of Zn 2+ Donors are doped into a stable framework structure, which is beneficial for the dissolution of Zn 2+ , prolonging the duration of its antibacterial action, thereby enhancing the antibacterial effect.

[0095] Combining Example 3 and Example 6 with Table 5, it can be seen that the antibacterial performance of Example 6 is slightly greater than that of Example 3, indicating that under acidic conditions, the positively charged amino groups in aminoterephthalic acid can also cause damage to bacterial cell membranes, thereby enhancing the antibacterial effect.

[0096] Combining Example 6 and Examples 7-11 and Table 5, it can be seen that the antibacterial performance of Examples 7-11 is greater than that of Example 6, indicating that when the aldehyde content in the system increases, the aldehyde group also inhibits the life activities of bacteria, thereby helping to improve the antibacterial effect.

[0097] Combining Example 9, Examples 12-16, Comparative Example 1 and Comparative Example 3 and Table 6, it can be seen that the anti-mite effects of Examples 9 and Examples 12-16 are greater than those of Comparative Example 1 and Comparative Example 3, indicating that in the absence of anti-mite microcapsules, the antibacterial agent alone cannot inhibit the mites, and the volatile aldehyde substances in the anti-mite microcapsules can effectively inhibit the life activities of the mites, thereby achieving the anti-mite effect. In addition, the anti-mite effect of Examples 12-16 is greater than that of Example 9, indicating that the aldehyde groups in glutaraldehyde also have an inhibitory effect on mites to a certain extent, which is conducive to more effectively improving the anti-mite effect.

[0098] Combining Example 3, Comparative Example 1 and Comparative Example 4 and Table 7, it can be seen that the tensile strength retention rate of Comparative Example 4 is greater than that of Comparative Example 1, indicating that when the polypropylene is modified by polar groups, the tensile resistance between the matrix is ​​improved. In addition, the tensile strength retention rate of Example 3 is greater than that of Comparative Example 4, indicating that when there is a lack of modified fillers, the plastic layer has a small shielding effect on ultraviolet light and is more susceptible to aging, while the zinc oxide in the modified filler can shield ultraviolet light, thereby helping to improve the anti-aging ability of the plastic layer.

[0099] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. An antibacterial and degreasing tablecloth, characterized in that: The antibacterial degreasing tablecloth comprises a film layer, a fabric layer and a plastic layer, wherein the fabric layer and the plastic layer are bonded to each other, the fabric layer is a cotton fabric, and the film layer is formed by solidifying a film-forming liquid on the surface of the cotton fabric, wherein the film-forming liquid comprises the following components in parts by weight: 16-19 parts of aminopolysaccharide substances, Zn 2+ 8-12 parts of a dopant, 20-26 parts of a carboxylic acid, 70-72 parts of water and 7-11 parts of essential oil microcapsules, wherein the essential oil microcapsules contain aldehyde compounds, the components of the plastic layer include modified polyolefins and modified fillers, polar groups are grafted onto the molecular chains of the modified polyolefins, and the components of the modified fillers include zinc oxide; The Zn 2+ The dopant was prepared as follows: (1) The framework precursor and Zn 2+ The donor is added to N,N-dimethylformamide and mixed to obtain solution 1; a ligand is added to solution 1 to obtain solution 2; the framework precursor is zirconium chloride; and the ligand is a compound containing a carboxyl group; (2) Solution 2 is heated and then cooled, centrifuged, refluxed and dried to obtain Zn 2+ doping agent; The essential oil microcapsules are prepared according to the following method: (1) a core material, polyoxyethylene sorbitan monooleate, glycerol and a carrier aqueous solution are mixed to form a mixed solution 1, a calcium chloride solution is prepared, and the calcium chloride solution is added to the mixed solution 1 to form a mixed solution 2; the core material is a mixture of cinnamon essential oil and cinnamaldehyde, and the weight percentage of cinnamaldehyde in the core material is 62.8-66.3%; (2) The mixed solution 2 is heated and then centrifuged to dry to obtain essential oil microcapsules.

2. The antibacterial and degreasing tablecloth according to claim 1, characterized in that: The ligand is aminoterephthalic acid.

3. The antibacterial and degreasing tablecloth according to claim 1, characterized in that: In step (2) of preparing the essential oil microcapsules, a curing agent is added to the mixed solution 2 after heating and before centrifugal drying, and the curing agent is glutaraldehyde.

4. The production process of the antibacterial and oil-removing tablecloth according to any one of claims 1 to 3, characterized in that: The antibacterial and degreasing tablecloth is prepared according to the following method: (1) Prepare an acidic solution, add aminopolysaccharides and stir, then add Zn 2+ doping agent and essential oil microcapsules, and continue stirring to obtain a film-forming solution; (2) After the modified polypropylene and the modified filler are mixed and melted, injection molding and cooling are performed to obtain a plastic layer; (3) Soak the cotton fabric in the film-forming liquid and then take it out to dry; (4) Spread the dried cotton fabric flat, and use adhesive to bond the plastic layer to one side of the cotton fabric to obtain an antibacterial and oil-removing tablecloth.

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