CN115593040B

CN115593040B - Antibacterial and oil-removing tablecloth and production process thereof

Info

Publication number: CN115593040B
Application number: CN202211154854.6A
Authority: CN
Inventors: 王玉峰; 钟萍; 俞春法; 王春
Original assignee: Shanghai Bay Plastic Products Co ltd
Current assignee: Shanghai Bay Plastic Products Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2025-04-01
Anticipated expiration: 2042-09-21
Also published as: CN115593040A

Abstract

本申请涉及桌布技术领域，具体公开了一种抗菌除油桌布及其生产工艺，所述抗菌除油桌布包括膜层、织物层和塑料层，所述织物层和塑料层相互粘接，所述织物层为棉织物，所述膜层通过成膜液在棉织物表面固化而成，所述成膜液包括以下重量份的组分：氨基多糖类物质16‑19份、Zn²⁺掺杂剂8‑12份、羧酸20‑26份、水70‑72份和精油微胶囊7‑11份，所述精油微胶囊含有醛基化合物，所述塑料层的组分包括改性聚烯烃和改性填料，所述改性聚烯烃的分子链上接枝有极性基团，所述改性填料的组分包括氧化锌。本申请的抗菌除油桌布，发挥出很好的抗菌和抗螨功效，并且使用时间长。The present application relates to the technical field of tablecloths, and specifically discloses an antibacterial and oil-removing tablecloth and a production process thereof, wherein 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, wherein the fabric layer is a cotton fabric, wherein 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 aminopolysaccharide substances, 8-12 parts of Zn2 ⁺ dopants, 20-26 parts of carboxylic acids, 70-72 parts of water and 7-11 parts of essential oil microcapsules, wherein the essential oil microcapsules contain aldehyde compounds, wherein the components of the plastic layer comprise modified polyolefins and modified fillers, wherein polar groups are grafted onto the molecular chains of the modified polyolefins, and the components of the modified fillers comprise zinc oxide. The antibacterial and oil-removing tablecloth of the present application exerts good antibacterial and anti-mite effects, and has a long service life.

Description

Antibacterial and oil-removing tablecloth and production process thereof

Technical Field

The application relates to the technical field of tablecloths, in particular to an antibacterial degreasing tablecloth and a production process thereof.

Background

In the related art, an antibacterial and oil-removing tablecloth is prepared by soaking cotton fabric in a solution containing silver ion antibacterial agent, taking out and drying, and adhering a polypropylene plastic layer on the other side of the cotton fabric to obtain the tablecloth with an antibacterial function.

In view of the above related art, the inventors believe that the tablecloth with silver ions can play an antibacterial role, but the cost of the silver ion antibacterial agent is high, and when the tablecloth is in the sanitary condition, the existence of mites increases the activity of bacteria, so that the silver ions are not in contact with the bacteria effectively, and therefore the antibacterial effect is limited, and in addition, animal and vegetable grease in residues is easy to remain on the tablecloth, and mites are attracted for a long time, so that bacteria are bred.

Disclosure of Invention

In the related art, the existence of mites enhances the activity of bacteria and influences the antibacterial performance of the tablecloth, and in order to overcome the defect, the application provides the antibacterial degreasing tablecloth and a production process thereof.

In a first aspect, the application provides an antibacterial degreasing tablecloth, which adopts the following technical scheme:

The antibacterial degreasing tablecloth is characterized by comprising a film layer, a fabric layer and a plastic layer, wherein the fabric layer and the plastic layer are mutually adhered, the fabric layer is cotton fabric, the film layer is formed by solidifying film forming liquid on the surface of the cotton fabric, the film forming liquid comprises, by weight, 16-19 parts of aminopolysaccharide substances, 8-12 parts of Zn ²⁺ doping agents, 20-26 parts of carboxylic acids, 70-72 parts of water and 7-11 parts of essential oil microcapsules, the essential oil microcapsules contain aldehyde compounds, the components of the plastic layer comprise modified polyolefin and modified fillers, polar groups are grafted on molecular chains of the modified polyolefin, and the components of the modified fillers comprise zinc oxide.

According to the technical scheme, the amino groups in the film forming liquid are positively charged under the acidic condition, and the amino groups in the film forming liquid can be electrostatically interacted with hydroxyl groups on the surface of cotton fabrics, so that the film layer is attached to the cotton fabrics, when the film layer contacts residual liquid, zn ²⁺ doping agents in the film layer can contact bacteria in the residual liquid to generate a contact antibacterial effect, under the condition, zn ²⁺ can be dissolved, microbial cell membranes are negatively charged, cell membranes are mutually attracted to cause cell membrane damage, and then bacteria die, and meanwhile, when bacteria exist, under the irradiation of ultraviolet light, metal ions in the film layer can absorb environmental energy to activate oxygen in air or solution, and an active oxygen antibacterial effect is generated, namely under photocatalysis, O ₂ and H ₂ O react to generate H ₂O₂, hydroxyl free radicals can generate oxidation-reduction reaction with the bacterial bodies to damage the cell membranes, and the bacteria die. Due to the aldehyde compound in the film layer, the film layer not only can destroy bacterial cell membranes by contact, but also can inhibit the activity of acetylcholinesterase in mites, so that the tablecloth has excellent antibacterial and anti-mite functions by the synergistic effect of three modes of contact type antibacterial, active oxygen antibacterial and enzyme activity inhibition.

Animal and vegetable grease molecules are negatively charged and can be combined with positively charged amino groups under the action of static interaction, so that the permeability of grease is reduced, but when excessive grease exists, the grease possibly permeates cotton fabrics to cause bacterial breeding, zinc oxide in modified fillers can excite oxygen in air into active oxygen under the activation of ultraviolet light and then acts on the bacteria, so that the antibacterial effect is achieved, meanwhile, polar groups are grafted in modified polypropylene molecular chains, and therefore, even though the grease permeates a fabric layer, a plastic layer is not easily infiltrated by the grease, in addition, the zinc oxide has strong shielding capability on the ultraviolet light, and the ageing resistance of the plastic can be improved.

Preferably, the Zn ²⁺ doping agent is prepared by (1) adding a skeleton precursor and a Zn ²⁺ donor into N, N-dimethylformamide, mixing to obtain a solution 1, adding a ligand into the solution 1 to obtain a solution 2, heating and cooling the solution 2, and centrifuging, refluxing and drying the solution 2 to obtain the Zn ²⁺ doping agent.

By adopting the technical scheme, the framework precursor, the ligand and the Zn ²⁺ donor are combined together through coordination reaction, so that the Zn ²⁺ dopant with a stable framework structure is obtained.

Preferably, the backbone precursor is zirconium chloride.

By adopting the technical scheme, zirconium ions in the zirconium chloride can provide skeleton center atoms in the skeleton forming process, so that coordination reaction occurs, and the skeleton structure of the Zn ²⁺ doping agent is formed.

Preferably, the ligand is a compound containing a carboxyl group.

By adopting the technical scheme, the carboxyl can coordinate with zirconium ions, so that the formation of a Zn ²⁺ doping agent framework structure is facilitated.

Preferably, the ligand is amino terephthalic acid.

By adopting the technical scheme, under the acidic condition, the amino groups in the amino terephthalic acid have positive charges, so that the cell membrane of bacteria can be damaged, and the antibacterial effect is further facilitated.

The essential oil microcapsule is preferably prepared by (1) mixing a core material, polyoxyethylene sorbitan monooleate, glycerol and a carrier aqueous solution to form a mixed solution 1, preparing a calcium chloride solution, adding the calcium chloride solution into the mixed solution 1to form a mixed solution 2, and (2) heating the mixed solution 2 and then centrifugally drying to obtain the essential oil microcapsule.

By adopting the technical scheme, under the action of polyoxyethylene sorbitan monooleate, the wall material can be aggregated to the surface of the core material, so that the essential oil microcapsule can be prepared.

Preferably, the components of the core material comprise cinnamon essential oil.

By adopting the technical scheme, as the cinnamon essential oil has an antibacterial effect on most microorganisms and the aldehyde substances contained in the cinnamon essential oil can play an anti-mite role, the cinnamon essential oil microcapsule with the antibacterial and anti-mite effects is formed under the wrapping of the wall material.

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

By adopting the technical scheme, as the core material contains the cinnamaldehyde, the added cinnamaldehyde not only increases the aldehyde content in the essential oil microcapsule, but also prolongs the time required by complete volatilization of the cinnamaldehyde, thereby enhancing the antibacterial and anti-mite effects.

Preferably, a curing agent is further added into the mixed solution 2 before centrifugal drying after heating in the step (2), and the curing agent is glutaraldehyde.

Through adopting above-mentioned technical scheme, because the cation of calcium chloride solution and the anion in the carrier aqueous solution are through electrostatic interaction mutual attraction, the aldehyde curing agent of adding can make the combination of both strengthen, and then help obtaining the microcapsule of more stable structure, simultaneously, preferred glutaraldehyde's quantity, make it not only act on the wall material, can also introduce aldehyde group into the microcapsule to further strengthen antibiotic and anti mite effect.

In a second aspect, the application provides a production process of an antibacterial and oil-removing tablecloth, which adopts the following technical scheme.

The production process of the antibacterial and oil-removing tablecloth comprises the following steps of:

Preparing an acidic solution, adding aminopolysaccharide substances into the acidic solution, stirring, adding Zn ²⁺ doping agent and essential oil microcapsule, stirring continuously to obtain a film forming liquid, mixing modified polypropylene and modified filler, melting, injecting and cooling to obtain a plastic layer, soaking cotton fabric in the film forming liquid, taking out and drying, and (4) flatly spreading the dried cotton fabric, and adhering the plastic layer on one side of the cotton fabric by using adhesive to obtain the antibacterial degreasing tablecloth.

By adopting the technical scheme, the cotton fabric can have the functions of resisting bacteria and mites by soaking the cotton fabric in the film forming liquid, and then the cotton fabric and the plastic layer are combined in an adhesive mode, so that the tablecloth with excellent antibacterial, mite-resisting and ageing resistance can be prepared.

In summary, the application has the following beneficial effects:

1. According to the antibacterial and oil-removing tablecloth disclosed by the application, the aminopolysaccharide substances, the Zn ²⁺ doping agent and the essential oil microcapsules are combined, so that the antibacterial and anti-mite effect of the tablecloth is improved, and meanwhile, the penetration capacity of grease can be reduced due to the existence of amino groups.

2. According to the application, the polar groups are grafted with the polypropylene, so that the adhesion capability of the polypropylene is improved, and then the introduced modified filler can relieve the oxidation of the polypropylene, and meanwhile, the antibacterial property is also improved, so that the ageing resistance and the antibacterial property of the plastic layer are improved.

3. According to the method disclosed by the application, materials with different functions are attached to the cotton fabric in a soaking and bonding mode, so that the antibacterial and oil-removing tablecloth with excellent performance is prepared.

Detailed Description

The present application will be described in further detail with reference to examples, preparations and comparative examples.

Preparation of Zn ²⁺ dopant

The following is an example of preparation 1.

Preparation example 1

In this preparation example, the Zn ²⁺ dopant was prepared by (1) mixing 3.44g of zirconium chloride, 3.57g of zinc nitrate hexahydrate and 740g of N, N-dimethylformamide to obtain a mixed solution 1, adding 3.74g of terephthalic acid to the mixed solution 1 to obtain a mixed solution 2, (2) heating the mixed solution 2 at 120℃for 24 hours, cooling to room temperature and centrifuging with N, N-dimethylformamide to obtain a solid product 1, refluxing with acetone at 60℃for 3 days, and then drying at 100℃for 12 hours to obtain the Zn ²⁺ dopant.

Preparation example 2

This preparation differs from preparation 1 in that terephthalic acid is replaced with amino terephthalic acid.

Preparation example of essential oil microcapsule

Preparation example 3

In the preparation example, the essential oil microcapsule is prepared by (1) mixing 350g of cinnamon essential oil, 230g of polyoxyethylene sorbitan monooleate, 180g of glycerol and 800g of sodium alginate solution to form a mixed solution 1, adding a calcium chloride solution into the mixed solution 1 to form a mixed solution 2, (2) heating the mixed solution 2 at 50 ℃ for 30min, centrifuging with distilled water, and then drying at 40 ℃ for 4h to obtain the essential oil microcapsule.

Preparation example 4

The present preparation example is different from preparation example 3 in that the core material used for preparing the essential oil microcapsule is a mixture of cinnamon essential oil and cinnamaldehyde, wherein the weight percentage of the total cinnamaldehyde in the core material is 62.1%.

As shown in Table 1, preparation examples 4 to 8 were different in that the total cinnamaldehyde weight percentage in the core material used for preparing the essential oil microcapsules was different.

TABLE 1

Sample of	Preparation example 4	Preparation example 5	Preparation example 6	Preparation example 7	Preparation example 8
						Cinnamic aldehyde	62.1%	62.8%	64.55%	66.3%	66.8%

Preparation example 9

This preparation differs from preparation 8 in that 3g of glutaraldehyde curing agent was also added to the mixed solution 2 of step (2).

As shown in Table 2, preparation examples 9 to 13 were different in the amount of glutaraldehyde used.

TABLE 2

Sample of	Preparation example 9	Preparation example 10	PREPARATION EXAMPLE 11	Preparation example 12	Preparation example 13
						Glutaraldehyde (g)	3	4	5.5	7	8

Preparation example of modified Polypropylene

PREPARATION EXAMPLE 14

In the preparation example, the modified polypropylene is prepared by dissolving 110g of dicumyl peroxide, 160g of styrene and 180g of maleic anhydride in a flask, adding 200g of polypropylene under stirring, continuously stirring for 1h, transferring into a single screw extruder for melt grafting, controlling the temperature of a screw rod at 200 ℃, extruding, and cooling and drying to obtain the modified polypropylene.

Preparation example of modified filler

Preparation example 15

In the preparation example, the modified filler is prepared by emulsifying 150g of silane coupling agent in 500g of water for 30min, adding 120g of zinc oxide, heating and stirring at 110 ℃, drying to obtain a product 1, dissolving 80g of maleic anhydride grafted polypropylene wax in 120g of dimethylbenzene, adding the product 1, heating and stirring at 100 ℃, and drying to obtain the modified filler.

Examples

Examples 1 to 5

The following description will take example 1as an example.

Example 1

In this example, zn ²⁺ dopant was prepared according to preparation example 1, essential oil microcapsule was prepared according to preparation example 3, modified polypropylene was prepared according to preparation example 14, and modified filler was prepared according to preparation example 15.

The antibacterial degreasing tablecloth is prepared by the steps of (1) adding 180g of acetic acid into 650g of water, adding 140g of chitosan into the water, stirring, adding 76g of Zn ²⁺ doping agent and 64g of essential oil microcapsule, continuously stirring to obtain film forming liquid, (2) mixing 150g of modified polypropylene and 50g of modified filler, melting at 190 ℃, performing injection molding and cooling to obtain a plastic layer, (3) soaking cotton fabric in the film forming liquid for 4h, drying at 40 ℃ for 15min, flatly spreading the dried cotton fabric, and bonding the plastic layer on one side of the cotton fabric by using epoxy resin adhesive to obtain the antibacterial degreasing tablecloth.

As shown in Table 3, examples 1 to 5 were different in the composition ratio of the film-forming liquid.

TABLE 3 Table 3

Example 6

This example differs from example 5 in that a Zn ²⁺ dopant was prepared as in preparation example 2.

Example 7

This example differs from example 6 in that essential oil microcapsules were prepared according to preparation example 4.

As shown in Table 4, examples 7-16 differ in the preparation of essential oil microcapsules.

TABLE 4 Table 4

Sample of	Preparation example of essential oil microcapsule	Sample of	Preparation example of essential oil microcapsule
				Example 7	Preparation example 4	Example 12	Preparation example 9
Example 8	Preparation example 5	Example 13	Preparation example 10
				Example 9	Preparation example 6	Example 14	PREPARATION EXAMPLE 11
Example 10	Preparation example 7	Example 15	Preparation example 12
				Example 11	Preparation example 8	Example 16	Preparation example 13

Comparative example

Comparative example 1

A tablecloth was prepared by mixing 40g of silver nitrate with 900g of water, immersing a cotton fabric therein at room temperature for 1 hour, drying at 60 ℃, and then adhering a polypropylene plastic layer on one side thereof with an epoxy adhesive.

Comparative example 2

This comparative example differs from example 3 in that only a single zinc nitrate was added to the film forming liquid as a Zn ²⁺ donor.

Comparative example 3

This comparative example differs from example 3 in that the essential oil microcapsules are not contained in the film-forming liquid.

Comparative example 4

This comparative example differs from example 3 in that the components for preparing the plastic layer do not contain fillers.

Performance detection test method

According to the formulation and procedure of each example and comparative example, different sized tablecloths were tested for antimicrobial, anti-mite and anti-aging properties.

1. The antibacterial performance operation step comprises the steps of placing a tablecloth sample wafer into a sterile workbench for sterilization, and then inoculating escherichia coli suspension with the dilution of 10 ^-4 into a culture medium which takes beef extract, peptone and the like as raw materials. Finally, the tablecloth sample discs were fully spread and fixed in a culture medium which had been inoculated with a bacterial suspension, placed in a thermostatic incubator at 37 ℃ for cultivation for 24 hours, and the size of the inhibition zone was recorded, and the results are shown in table 5.

TABLE 5

Sample of	Size of inhibition zone (mm)	Sample of	Size of inhibition zone (mm)
				Example 1	8.1	Example 11	12.3
Example 2	9.5	Example 12	13.5
				Example 3	10.8	Example 13	13.8
Example 4	10.5	Example 14	14.2
				Example 5	10.3	Example 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

2. Anti-mite property

The method comprises the steps of preparing two culture dishes, wherein one culture dish is used as an experimental group, the other culture dish is used as a control group, a layer of tablecloth sample is fully paved in the culture dishes of the experimental group, the mixture of white oil and vaseline (1:1) is smeared on the inner periphery of the two culture dishes to prevent mites from climbing out, 100 adult mites after entering into an adult mite period are placed in the centers of the two culture dishes, 0.03g of mite feed is placed in the heads of the two culture dishes, and the two culture dishes are placed in an incubator with the temperature of 25+/-1 ℃ and the humidity of 75+/-5% for 24 hours. After taking out, the survival state of mites is observed under a microscope, the patients with the immobilized limbs are regarded as death, the death of mites is not seen in a control group, the death rate of mites in a culture dish of an experimental group is recorded, and the result is shown in table 6.

TABLE 6

3. The ageing resistance operation steps are that ultraviolet rapid ageing experiments are carried out on tablecloths according to ASTM G154 Cycle 1, the radiation wavelength is 340nm, the ultraviolet radiation intensity is 0.89W/m ², continuous illumination is adopted, the blackboard temperature is 50 ℃, tensile performance tests are carried out according to GB/T1040.1-2006, the tensile rate is 20mm/min, the ageing time is 100 days, and the tensile strength retention rate is recorded, and the related results are shown in Table 7.

TABLE 7

Sample of	Tensile Strength retention (%)
		Example 3	42
Comparative example 1	19
		Comparative example 4	27

As can be seen from the combination of examples 1 to 5 and comparative example 1 and Table 5, the antibacterial properties of examples 1 to 5 are all greater than those of comparative example 1, which means that when the soaking solution contains only Ag ⁺, only the contact type antibacterial effect with the residual liquid is achieved and the bacteria spreading by mites cannot be effectively inhibited, while the antibacterial degreasing tablecloth of the present application can not only exert the contact type antibacterial effect but also the active oxygen antibacterial effect and inhibit the activities of mites, thereby more effectively improving the antibacterial properties.

As can be seen from the combination of example 3 and comparative example 2 and the combination of table 5, the antibacterial performance of example 3 is greater than that of comparative example 2, which shows that doping Zn ²⁺ donor into a stable skeleton structure is beneficial to dissolving Zn ²⁺ and prolonging the antibacterial action time thereof, thereby improving the antibacterial effect.

As can be seen from the combination of example 3 and example 6 and the combination of table 5, the antibacterial performance of example 6 is slightly greater than that of example 3, which indicates that the positively charged amino group in the amino terephthalic acid can also cause the damage of bacterial cell membrane under the acidic condition, thereby improving the antibacterial effect.

As can be seen from the combination of examples 6 and examples 7 to 11 and Table 5, examples 7 to 11 have a higher antibacterial property than example 6, indicating that the aldehyde group also has an inhibitory effect on the vital activity of bacteria when the aldehyde group content in the system is increased, thereby contributing to the improvement of the antibacterial effect.

It can be seen from the combination of examples 9, 12 to 16, comparative examples 1 and 3 and the combination of table 6 that the anti-mite effects of examples 9 and 12 to 16 are greater than those of comparative examples 1 and 3, which means that the anti-mite microcapsules are not inhibited by the antibacterial agent alone, and the volatile aldehyde substances in the anti-mite microcapsules can effectively inhibit the vital activities of mites, thereby achieving the anti-mite effects, and in addition, the anti-mite effects of examples 12 to 16 are greater than those of example 9, which means that the aldehyde groups present in glutaraldehyde have the inhibiting effect on mites to some extent, thereby being beneficial to more effectively improving the anti-mite effects.

As can be seen from the combination of example 3, comparative example 1 and comparative example 4 and the table 7, comparative example 4 has a tensile strength retention greater than that of comparative example 1, showing that the tensile strength between the substrates is improved when the polypropylene is modified with the polar groups, and in addition, example 3 has a tensile strength retention greater than that of comparative example 4, showing that the plastic layer has a small uv light shielding effect and is more prone to aging when the modified filler is absent, and zinc oxide in the modified filler has a uv light shielding effect, thereby contributing to the improvement of the aging resistance of the plastic layer.

The present embodiment is only for explanation of the present application and is not to be construed as limiting the present application, and modifications to the present embodiment, which may not creatively contribute to the present application as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present application.

Claims

1. 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, the film-forming liquid comprises the following components in parts by weight: 16-19 parts of aminopolysaccharide substances, 8-12 parts of Zn2 ⁺ dopants, 20-26 parts of carboxylic acids, 70-72 parts of water and 7-11 parts of essential oil microcapsules, the essential oil microcapsules contain aldehyde compounds, the components of the plastic layer comprise modified polyolefins and modified fillers, polar groups are grafted onto the molecular chains of the modified polyolefins, and the components of the modified fillers comprise zinc oxide;

The Zn2 ⁺ dopant is prepared as follows:

(1) adding a framework precursor and a Zn2 ⁺ donor to N,N-dimethylformamide and mixing to obtain a solution 1; adding a ligand to the solution 1 to obtain a 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, and then centrifuged, refluxed and dried to obtain a Zn ²⁺ dopant;

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 oil-removing tablecloth according to claim 1, characterized in that the ligand is aminoterephthalic acid.

3. The antibacterial and oil-removing 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 oil-removing tablecloth is prepared according to the following method:

(1) preparing an acidic solution, adding amino polysaccharide substances thereto and stirring, then adding Zn2 ⁺ dopant and essential oil microcapsules, and continuing to stir 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.