阅读说明：本技术 一种塑料盒加工生产方法 (Plastic box processing and producing method ) 是由 张卫兵 于 2021-07-08 设计创作，主要内容包括：本申请涉及塑料包装技术领域,尤其涉及一种塑料盒加工生产方法。其包括以下处理步骤：S1、抗菌层制备：将抗菌纤维、树脂溶胶和填料混合后,挤出成型,制得线材,再将线材经纺织裁切后,形成抗菌层；抗菌纤维为木棉纤维、壳聚糖纤维、亚麻纤维和松针纤维中的一种或多种；S2、抗菌层附着：先将抗菌层压合在PET基材上,再将粘结树脂刮涂在PET基材和抗菌层表面,固化后,制得膜材；S3、压合成材：将S2中制得的膜材压合,制得片材；S4、吸塑成型：将片材热熔软化后,置于模具内,经压边、真空吸塑、裁剪后,即可制得塑料盒。本申请通过抗菌层的涂覆压合,赋予了塑料盒优良的抗菌性能。(The application relates to the technical field of plastic packaging, in particular to a plastic box processing and producing method. The method comprises the following processing steps: s1, preparation of an antibacterial layer: mixing the antibacterial fiber, the resin sol and the filler, extruding and molding to obtain a wire rod, and cutting the wire rod by spinning to form an antibacterial layer; the antibacterial fiber is one or more of kapok fiber, chitosan fiber, flax fiber and pine needle fiber; s2, attaching an antibacterial layer: laminating the antibacterial layer on the PET substrate, coating the bonding resin on the surfaces of the PET substrate and the antibacterial layer by scraping, and curing to obtain a film material; s3, pressing the composite material: pressing the membrane material prepared in the step S2 to prepare a sheet material; s4, plastic suction molding: and (3) placing the sheet material into a mould after the sheet material is melted and softened, and then carrying out edge pressing, vacuum forming and cutting to obtain the plastic box. According to the application, the plastic box is endowed with excellent antibacterial performance through coating and pressing of the antibacterial layer.)

1. The processing and production method of the plastic box is characterized by comprising the following processing steps:

s1, preparation of an antibacterial layer: mixing the antibacterial fiber, the resin sol and the filler under the condition that the pH =5-7, extruding and forming to prepare a wire rod, and cutting the wire rod by spinning to form an antibacterial layer;

the antibacterial fiber is one or more of kapok fiber, chitosan fiber, flax fiber and pine needle fiber;

s2, attaching an antibacterial layer: the antibacterial layer is pressed on the PET substrate, then the bonding resin is coated on the surfaces of the PET substrate and the antibacterial layer in a scraping mode, and after the coating is finished, the coating is cured to obtain a film material;

s3, pressing the composite material: pressing the membrane material prepared in the S2 at the pressing pressure of 5-10MPa and the pressing temperature of 25-35 ℃ to obtain a sheet material;

s4, plastic suction molding: the sheet is hot melted and softened at the temperature of 160-.

2. The method for manufacturing a plastic box according to claim 1, wherein the antibacterial fiber, the resin sol and the antibacterial filler are mixed in a weight ratio of 1: (0.5-0.8): (0.1-0.2) mixing.

3. A plastic case processing and producing method as claimed in claim 1, wherein said wire has a wire diameter of 0.4 to 0.6mm and a density of 14 to 16 wires/cm in a longitudinal direction of warp and/or a longitudinal direction of weft.

4. The plastic box processing and producing method of claim 1, wherein the antibacterial fiber is made of kapok fiber, chitosan fiber and flax fiber according to a weight ratio of 1: (0.2-0.3): (0.8-1.2).

5. A method for manufacturing a plastic case according to claim 1, wherein the resin sol is one or more of polyamide resin, polypropylene resin and amino resin.

6. A plastic case processing and producing method according to claim 5, wherein the resin sol is prepared from polyamide resin, polypropylene resin and amino resin in a weight ratio of 1: (2-3): (1-1.5).

7. The processing and production method of the plastic box as claimed in claim 1, wherein the filler is one or more of silver ion antibacterial powder, ceramic micro powder and nano silicon dioxide.

8. The plastic box processing and producing method of claim 7, wherein the filler is prepared from silver ion antibacterial powder, ceramic micro powder and nano silica according to a weight ratio of 1: (5-8): (3-5).

Technical Field

The application relates to the technical field of plastic packaging, in particular to a plastic box processing and producing method.

Background

Plastic boxes, namely box packaging containers made of plastic, have the advantages of being beneficial to mass production due to the fact that the plastic boxes are easy to form, containers of different varieties can be obtained only by replacing a mold, the packaging effect is good, and various packaging containers of different varieties can be manufactured according to needs, so that the plastic boxes are widely applied to various packaging industries, wherein packaging boxes for food are taken as an example. The food packaging box is a common plastic product in our life, and greatly improves the convenience of daily external packaging of food.

In the related art, the main material of the food packaging box is PET, and the preparation process comprises the following steps: and (3) softening the PET sheet by hot melting, placing the PET sheet right above a mould, and carrying out blank pressing, vacuum forming and cutting by using a plastic forming device to obtain the food packaging box. The preparation process is simple and convenient, the operation is easy, and good mechanical property and corrosion resistance are endowed to the food packaging box through the characteristics of PET.

However, the food packaging box prepared by the technology has no antibacterial performance, so that bacteria are easy to breed when the food packaging box is idle or used for preserving food for a long time, the preservation time of the food is greatly shortened, and the food packaging box is not beneficial to the health of a human body.

Disclosure of Invention

In order to endow the plastic box with antibacterial performance and guarantee the preservation time of food, the application provides a plastic box processing and producing method.

The application provides a plastic box processing production method which adopts the following technical scheme:

the processing and production method of the plastic box is characterized by comprising the following processing steps:

s1, preparation of an antibacterial layer: mixing the antibacterial fiber, the resin sol and the filler under the condition that the pH value is 5-7, extruding and forming to obtain a wire rod, and cutting the wire rod by spinning to form an antibacterial layer;

the antibacterial fiber is one or more of kapok fiber, chitosan fiber, flax fiber and pine needle fiber;

s2, attaching an antibacterial layer: the antibacterial layer is pressed on the PET substrate, then the bonding resin is coated on the surfaces of the PET substrate and the antibacterial layer in a scraping mode, and after the coating is finished, the coating is cured to obtain a film material;

s3, pressing the composite material: pressing the membrane material prepared in the S2 at the pressing pressure of 5-10MPa and the pressing temperature of 25-35 ℃ to obtain a sheet material;

s4, plastic suction molding: the sheet is hot melted and softened at the temperature of 160-.

Through adopting above-mentioned technical scheme, after above-mentioned antibacterial fiber mixes with resin sol and filler, the excellent antibacterial property of antibacterial layer is given to the characteristics of accessible kapok fiber, chitosan fiber, flax fiber and pine needle fibre itself, the cladding is at the resin sol and the filler in the antibacterial fiber outside, the bonding resin of coating on the antibacterial layer surface is cooperated, can ensure antibacterial fiber's antibacterial stability, make it difficult for taking place rotten, wherein the kapok fiber material is slim and graceful, the hollowness is higher, can fully combine with resin sol, be natural fiber with flax fiber and pine needle fibre, while green, all have the special fragrance that can restrain bacterial growing.

Preferably, the antibacterial fiber, the resin sol and the antibacterial filler are mixed according to a weight ratio of 1: (0.5-0.8): (0.1-0.2) mixing.

By adopting the technical scheme, the antibacterial fiber, the resin sol and the antibacterial filler which are proportioned have good combination relationship among the components, and the antibacterial components of the wire rod are more uniformly dispersed, so that the antibacterial stability of the antibacterial layer and the preservation time of food are ensured while the antibacterial layer is endowed with excellent antibacterial performance.

Preferably, the wire diameter of the wire is 0.4-0.6mm, and the density of the wire along the length direction of the warp and/or the length direction of the weft is 14-16 pieces/cm.

Through adopting above-mentioned technical scheme, the antibiotic layer of above-mentioned line footpath and weaving density, its layer structure is compact and compact simultaneously, has good mechanical properties and antibiotic performance concurrently, and this antibiotic layer is after pressing to establish on the substrate, can show the performance that promotes substrate itself then.

Preferably, the antibacterial fiber is prepared from kapok fiber, chitosan fiber and flax fiber in a weight ratio of 1: (0.2-0.3): (0.8-1.2).

By adopting the technical scheme, the antibacterial performance of the antibacterial fiber consisting of the kapok fiber, the chitosan fiber and the flax fiber according to the proportion is greatly improved, and the reason is presumed to be that the fragrance emitted by the kapok fiber and the flax fiber, namely volatile substances, is catalyzed by the chitosan fiber under the acidic condition, so that the kapok fiber and the flax fiber have a synergistic effect, and the antibacterial layer is endowed with more excellent antibacterial performance.

Preferably, the resin sol is composed of one or more of polyamide resin, polypropylene resin and amino resin.

By adopting the technical scheme, the resin sol of the components has good adhesive property and processing property, and then has good mixing and combining effect with the antibacterial fiber, and the antibacterial layer is endowed with excellent mechanical property and acid and alkali resistance through the characteristics of the resin sol, and the polyamide resin has certain antibacterial mildew resistance, so that the antibacterial effect of the antibacterial layer can be further enhanced.

Preferably, the resin sol is prepared from polyamide resin, polypropylene resin and amino resin in a weight ratio of 1: (2-3): (1-1.5).

By adopting the technical scheme, the resin sol consisting of the polyamide resin, the polypropylene resin and the amino resin according to the proportion has better combination effect with the antibacterial fiber, and can endow the antibacterial layer with more excellent mechanical property and antibacterial property by blending modification of the polypropylene resin, the amino resin and the polyamide resin and reinforcing modification of the antibacterial fiber.

Preferably, the filler is one or more of silver ion antibacterial powder, ceramic micro powder and nano silicon dioxide.

By adopting the technical scheme, the filler of the components can be mixed with the resin sol to play a role in filling and reinforcing, and has a certain antibacterial property, so that the antibacterial effect of the antibacterial layer can be further enhanced after the antibacterial layer is formed together.

Preferably, the filler is prepared from silver ion antibacterial powder, ceramic micro powder and nano silicon dioxide according to the weight ratio of 1: (5-8): (3-5).

By adopting the technical scheme, the filler consisting of the silver ion antibacterial powder, the ceramic micro powder and the nano silicon dioxide according to the proportion can uniformly combine silver ion and other functional ions into mesopores on the surface of the nano silicon dioxide by the huge specific surface area, the surface multi-mesopore structure and the unique physicochemical characteristic of the nano silicon dioxide and the adsorption action when the ceramic micro powder is used as a carrier, thereby endowing the antibacterial layer with excellent antibacterial performance.

In summary, the present application has the following beneficial effects:

1. according to the antibacterial fiber, the antibacterial layer is endowed with excellent antibacterial performance through the antibacterial fiber and the resin sol and the filler which are coated and combined on the outer side of the antibacterial fiber, meanwhile, the antibacterial performance is relatively stable, the raw materials of the components are green and environment-friendly, the fragrance is light, and the use experience is excellent;

2. according to the preparation method, the polyamide resin, the polypropylene resin, the amino resin and the antibacterial fiber are combined and blended, so that the antibacterial layer is endowed with more excellent mechanical property and antibacterial property, and the antibacterial property of the antibacterial layer is more stable;

3. according to the application, the antibacterial layer is endowed with excellent antibacterial performance through the addition of the silver ion antibacterial powder, the ceramic micro powder and the nano silicon dioxide, and functional ions such as silver ions can be combined with the surface mesopores of the nano silicon dioxide, so that the stability of the antibacterial performance is guaranteed.

Detailed Description

The present application will be described in further detail with reference to examples.

The raw materials used in the examples of the present application are commercially available, except for the following specific descriptions:

kapok fiber with fiber length of 8-12mm and density of 0.29g/m³The compressive modulus is 43.63 kPa;

chitosan fiber, cat no: JF-101-F, purchased from Qingdao instant New Material Co., Ltd;

flax fiber, the impurity content is less than or equal to 1.0, and the average fiber length is 32 mm;

epoxy, CAS 14532, purchased from gallery senson environmental protection technologies ltd;

polyamide resin, CAS 74-69-3, available from Kepler Biotech, Inc., Shandong;

polypropylene resin, designation PT262, purchased from suzhou new plastic materials ltd;

amino resin, CAS 9003-08-1, available from Shandong PolyChemicals, Inc.;

the silver ion antibacterial powder, the model KF136, is purchased from Ming armor mildew-proof antibacterial science and technology Limited company in Huizhou city;

the ceramic micro powder is 325 meshes and is purchased from a Lingshou county Jianshi mineral powder factory;

the nano silicon dioxide has an average particle size of 500nm and is purchased from Jiangsu Huimei powder science and technology Limited.

Examples

Example 1

A plastic box processing and producing method comprises the following processing steps:

s1, preparation of an antibacterial layer: antibacterial fiber, resin sol and filler are mixed according to the weight ratio of 1: 0.3: 0.05, mixing at the rotating speed of 200r/min under the condition that the pH value is 5, putting the mixture into a double-screw extruder, extruding and molding to obtain wires, controlling the temperature of the double-screw extruder from a feed port to a discharge port to be 200 ℃, 210 ℃, 220 ℃, 230 ℃ and 235 ℃, and cutting the wires by spinning to form an antibacterial layer, wherein the wire diameter of the wires is 0.5mm, and the density of the wires along the length direction of warps and/or the length direction of wefts is 13/cm;

the antibacterial fiber is kapok fiber;

the resin sol is polyamide resin;

the filler is silver ion antibacterial powder.

S2, attaching an antibacterial layer: and pressing the antibacterial layer on a PET (polyethylene terephthalate) substrate, coating adhesive resin on the surface of the PET substrate by a coater, wherein the thickness of the PET substrate is 0.70mm, the thickness of the coating is 0.20mm, and curing the PET substrate coated with the adhesive resin and the antibacterial layer in an ultraviolet curing machine for 3 hours to obtain a film material, wherein the adhesive resin is epoxy resin.

S3, pressing the composite material: and (3) pressing the film material prepared in the step (S2), wherein the distance between two press rolls is 0.90mm, the pressing pressure is 8MPa, and the pressing temperature is 30 ℃, so that the sheet material can be prepared.

S4, plastic suction molding: and (3) hot-melting and softening the sheet at 180 ℃ for 30min, placing the sheet in a mold of a plastic forming device, and pressing edges, vacuum forming and cutting to obtain the plastic box, wherein the pressure born by the sheet is 8MPa during vacuum forming.

Example 2

A plastic box processing and producing method is different from the embodiment 1 in that antibacterial fiber, resin sol and antibacterial filler are mixed according to the weight ratio of 1: 0.5: 0.1 mixing.

Example 3

A plastic box processing and producing method is different from the embodiment 1 in that antibacterial fiber, resin sol and antibacterial filler are mixed according to the weight ratio of 1: 0.65: 0.15 mixing.

Example 4

A plastic box processing and producing method is different from the embodiment 1 in that antibacterial fiber, resin sol and antibacterial filler are mixed according to the weight ratio of 1: 0.8: 0.2 mixing.

Example 5

A plastic box processing and producing method is different from the embodiment 1 in that antibacterial fiber, resin sol and antibacterial filler are mixed according to the weight ratio of 1: 1: 0.25 mixing.

Example 6

A plastic box processing and producing method is different from the embodiment 1 in that the wire diameter of the wire in S1 is 0.5mm, and the density of the wire along the length direction of the warp and/or the length direction of the weft is 14 pieces/cm.

Example 7

A plastic box processing and producing method is different from the embodiment 1 in that the wire diameter of the wire in S1 is 0.5mm, and the density of the wire along the length direction of the warp and/or the length direction of the weft is 15 pieces/cm.

Example 8

A plastic box processing and producing method is different from the embodiment 1 in that the wire diameter of the wire in S1 is 0.5mm, and the density of the wire along the length direction of the warp and/or the length direction of the weft is 16 pieces/cm.

Example 9

A plastic box processing and producing method is different from the embodiment 1 in that the wire diameter of the wire in S1 is 0.5mm, and the density of the wire along the length direction of the warp and/or the length direction of the weft is 17 pieces/cm.

Example 10

A plastic box processing and producing method is different from the embodiment 1 in that the antibacterial fiber in S1 is flax fiber.

Example 11

A plastic box processing and producing method is different from the embodiment 1 in that antibacterial fibers in S1 are prepared from kapok fibers, chitosan fibers and flax fibers according to the weight ratio of 1: 0.1: 0.5.

Example 12

A plastic box processing and producing method is different from the embodiment 1 in that antibacterial fibers in S1 are prepared from kapok fibers, chitosan fibers and flax fibers according to the weight ratio of 1: 0.2: 0.8.

Example 13

A plastic box processing and producing method is different from the embodiment 1 in that antibacterial fibers in S1 are prepared from kapok fibers, chitosan fibers and flax fibers according to the weight ratio of 1: 0.25: 1.

Example 14

A plastic box processing and producing method is different from the embodiment 1 in that antibacterial fibers in S1 are prepared from kapok fibers, chitosan fibers and flax fibers according to the weight ratio of 1: 0.3: 1.2.

Example 15

A plastic box processing and producing method is different from the embodiment 1 in that antibacterial fibers in S1 are prepared from kapok fibers, chitosan fibers and flax fibers according to the weight ratio of 1: 0.4: 1.5.

Example 16

A plastic box processing and producing method is different from the embodiment 1 in that the resin sol in S1 is polypropylene resin.

Example 17

A plastic box processing and producing method is different from the embodiment 1 in that the resin sol in S1 is prepared by mixing polyamide resin, polypropylene resin and amino resin according to the weight ratio of 1: 1: 0.5.

Example 18

A plastic box processing and producing method is different from the embodiment 1 in that the resin sol in S1 is prepared by mixing polyamide resin, polypropylene resin and amino resin according to the weight ratio of 1: 2: 1.

Example 19

A plastic box processing and producing method is different from the embodiment 1 in that the resin sol in S1 is prepared by mixing polyamide resin, polypropylene resin and amino resin according to the weight ratio of 1: 2.5: 1.25.

Example 20

A plastic box processing and producing method is different from the embodiment 1 in that the resin sol in S1 is prepared by mixing polyamide resin, polypropylene resin and amino resin according to the weight ratio of 1: 3: 1.5.

Example 21

A plastic box processing and producing method is different from the embodiment 1 in that the resin sol in S1 is prepared by mixing polyamide resin, polypropylene resin and amino resin according to the weight ratio of 1: 4: 2.

Example 22

A plastic box processing and producing method is different from the embodiment 1 in that the filler in S1 is nano silicon dioxide.

Example 23

A plastic box processing and producing method is different from the embodiment 1 in that the filling material of S1 is silver ion antibacterial powder, ceramic micro powder and nano silicon dioxide according to the weight ratio of 1: 3: 2.

Example 24

A plastic box processing and producing method is different from the embodiment 1 in that the filling material of S1 is silver ion antibacterial powder, ceramic micro powder and nano silicon dioxide according to the weight ratio of 1: 5: 3, and (3).

Example 25

A plastic box processing and producing method is different from the embodiment 1 in that the filling material of S1 is silver ion antibacterial powder, ceramic micro powder and nano silicon dioxide according to the weight ratio of 1: 6.5: 4.

Example 26

A plastic box processing and producing method is different from the embodiment 1 in that the filling material of S1 is silver ion antibacterial powder, ceramic micro powder and nano silicon dioxide according to the weight ratio of 1: 8: 5.

Example 27

A plastic box processing and producing method is different from the embodiment 1 in that the filling material of S1 is silver ion antibacterial powder, ceramic micro powder and nano silicon dioxide according to the weight ratio of 1: 10: 6.

Comparative example

Comparative example 1

A plastic box processing and producing method, which is different from the embodiment 1 in that an antibacterial layer is not included.

Comparative example 2

A plastic box processing and producing method, which is different from the embodiment 1 in that the antibacterial layer does not comprise antibacterial fiber.

Comparative example 3

A plastic box processing and producing method, which is different from the embodiment 1 in that the antibacterial layer does not contain resin sol.

Comparative example 4

A plastic box processing and producing method, which is different from the embodiment 1 in that the antibacterial layer does not contain filler.

Performance test

Detection method

The plastic cases obtained in examples 1 to 27 and comparative examples 1 to 4 were used as test objects, and cut into 50mm by 0.9mm thin sheet samples, and 30 sheets were obtained in each example or comparative example, wherein 10 sheets were used as a control group, 10 sheets were used as staphylococcus aureus antibacterial tests, and 10 sheets were used as escherichia coli antibacterial tests, and the antibacterial ratio R (%) of each group was measured, respectively, and the average values were recorded in table 1.

The antibacterial rate calculation formula is as follows: r (%) - (B-C)/B × 100 wherein: r-antibacterial ratio (%); b-number of recovered bacteria (cfu/patch) for blank control sample; c-number of recovered bacteria (cfu/chip) of antibacterial plastic sample.

The concentration of the selected bacterial liquid is 5.0 × 10⁵And (3) cfu/m of staphylococcus aureus diluent and escherichia coli diluent are used as test bacterial liquid, wherein the strain number of staphylococcus aureus is ATCC 6538, and the strain number of escherichia coli is ATCC 25922. The specific detection steps and the detection standard refer to GB 4789.2-2016 'determination of total number of bacterial colonies for food hygiene microbiological examination' and QB/T2591-2003A 'test method for antibacterial performance and antibacterial effect of antibacterial plastics'.

TABLE 1 Performance test results

As can be seen by combining examples 1-5 and comparative example 1 with Table 1, the antibacterial rate R of Staphylococcus aureus in the test process of examples 1-5 is higher than 93.50%, and the antibacterial rate R of Escherichia coli is higher than 92.50%.

In comparative example 1, since the antibacterial layer is not added, it has almost no antibacterial performance, and the antibacterial rate R of staphylococcus aureus is only 1.96% and the antibacterial rate R of escherichia coli is only 2.28% during the test process.

Example 3 is the best example, the antibacterial rate R of the staphylococcus aureus in the test process is as high as 95.56%, and the antibacterial rate R of the escherichia coli is as high as 94.37%. It can be seen that when the antibacterial fiber, the resin sol and the antibacterial filler in the weight ratio of S1 is 1: 0.65: 0.15, the antibacterial layer can obviously improve the antibacterial effect of the sample, and the antibacterial components of the wires are dispersed more uniformly while the combination relationship among the components is better.

As can be seen by combining example 1, examples 6-9 and Table 1, the antibacterial rate R of Staphylococcus aureus in the test process of the samples of examples 6-9 is higher than 94.50%, and the antibacterial rate R of Escherichia coli is higher than 93.50%.

Example 7 is the best example, the antibacterial rate R of the staphylococcus aureus is higher than 95.94%, and the antibacterial rate R of the escherichia coli is higher than 94.74% in the test process of the test sample. Therefore, the wire diameter of the wire in the S1 is 0.5mm, when the density of the wire along the length direction of the warp and/or the length direction of the weft is 15/cm, the antibacterial performance of the wire is the best, the layer structure is relatively compact, meanwhile, the synergistic effect among the antibacterial fibers can be enhanced through proper void ratio, and then after the antibacterial layer is pressed on the base material, the plastic box can be endowed with excellent mechanical performance and antibacterial performance.

As can be seen by combining example 1, examples 10-15 and Table 1, the antibacterial rate R of Staphylococcus aureus and Escherichia coli in the test process of the samples of examples 10-15 are all higher than 96.0%, and the antibacterial rate R of Escherichia coli is all higher than 95.0%.

The comparative example 2 does not include the antibacterial fiber, the antibacterial performance is greatly reduced, the antibacterial rate R of staphylococcus aureus is only 75.82%, the antibacterial rate R of escherichia coli is only 70.21%, namely, only the resin sol and the filler in the antibacterial layer play a certain antibacterial role.

Example 13 is the best example, the antibacterial rate R of the staphylococcus aureus in the test process is as high as 99.38%, and the antibacterial rate R of the escherichia coli is as high as 98.14%. Therefore, the antibacterial fiber in S1 is prepared from kapok fiber, chitosan fiber and flax fiber in a weight ratio of 1: 0.25: 1, when the composition is formed by the components,

the antibacterial performance of the antibacterial layer is greatly improved, the kapok fiber and the flax fiber have a synergistic effect after being catalyzed by the chitosan fiber under an acidic condition, and the antibacterial layer is endowed with the most excellent antibacterial performance.

As can be seen by combining example 1, examples 16-21 and Table 1, in which examples 17-21 employ three components simultaneously, the antibacterial rate R of Staphylococcus aureus is higher than 95.5% and the antibacterial rate R of Escherichia coli is higher than 94.5% in the test process.

Comparative example 3 does not include a resin solution, and its antibacterial performance is reduced to a small extent, and the antibacterial ratio R of staphylococcus aureus is only 93.18%, and the antibacterial ratio R of escherichia coli is only 92.22%.

Example 19 is the best example, the antibacterial rate R of the staphylococcus aureus in the test process is as high as 95.95%, and the antibacterial rate R of the escherichia coli is as high as 94.86%. It can be seen that the resin sol in S1 is prepared from polyamide resin, polypropylene resin and amino resin in a weight ratio of 1: 2.5: 1.25, the adhesive property and the processing property are better, and the antibacterial fiber and the filler can be fully combined, so that the antibacterial property of the antibacterial layer is ensured.

As can be seen by combining example 1, examples 22-27 and Table 1, wherein examples 23-27 employ three components simultaneously, the antibacterial rate R of Staphylococcus aureus is higher than 97.0% and the antibacterial rate R of Escherichia coli is higher than 96.0% in the test process.

Comparative example 4 does not include a filler, and its antibacterial performance is reduced, and the antibacterial ratio R of staphylococcus aureus is only 91.20%, and the antibacterial ratio R of escherichia coli is only 90.51%.

Example 25 is the most preferred example, the antibacterial rate R of the staphylococcus aureus in the test process is as high as 98.44%, and the antibacterial rate R of the escherichia coli is as high as 97.21%. Therefore, the filler in the S1 is prepared from silver ion antibacterial powder, ceramic micro powder and nano silicon dioxide according to the weight ratio of 1: 6.5: 4, the synergistic effect is better, the large specific surface area and the surface multi-mesoporous structure of the nano silicon dioxide can uniformly combine functional ions such as silver ions and the like into mesopores on the surface of the nano silicon dioxide, and then the antibacterial layer is endowed with excellent antibacterial performance.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.