Yoga mat capable of releasing negative oxygen ions and preparation method thereof

Abstract

The invention discloses a yoga mat capable of releasing negative oxygen ions and a preparation method of the yoga mat, and relates to the technical field of yoga mats, the method comprises the following steps: mixing a foaming agent and negative ion powder, performing ball milling to obtain ultrafine particles, soaking the ultrafine particles in a plasticizer, and after soaking, performing ball milling and scattering to obtain fine mixed particles; uniformly stirring and mixing the materials, and stopping stirring when the viscosity of the slurry meets the requirement, so as to obtain mixed slurry; and step 3, coating the mixed slurry on screen cloth, striking off the screen cloth, and foaming the screen cloth in a foaming furnace to obtain the yoga mat capable of releasing the negative oxygen ions. Negative ion powder and a foaming agent are subjected to ball milling to form superfine particles, the superfine particles are easy to agglomerate, the two kinds of particles are agglomerated together, then a plasticizer is used for modification, the dispersity of the particles in PVC resin is improved, fine mixed particles with proper particle sizes are formed through ball milling and scattering, fine and dense foam holes are formed, and after foaming, the negative ion powder is located on the inner walls of the foam holes, so that the foam holes are evenly distributed. The negative oxygen ion generator can be in better contact with air and is convenient to release negative oxygen ions.

Description

Technical Field

[0001] The invention relates to the technical field of yoga mats, and in particular to a yoga mat capable of releasing negative oxygen ions and a preparation method thereof. Background Art

[0002] Yoga mats are often used in yoga, which can play a role of buffering and protecting yoga practitioners. In order to increase the function of yoga mats and improve user experience, the prior art also adds functional ingredients to make yoga mats have special functions, such as adding wormwood, far-infrared stone, mildew and antibacterial agent, negative ion powder, etc. For example, the Chinese invention patent application with application number CN2022211606433.2 discloses a yoga mat that can release negative oxygen ions sustainably. By adding nano negative ion powder to the raw materials, the prepared yoga mat can have the function of releasing negative oxygen ions. However, when preparing the yoga mat, the nano negative ion powder is directly added to the slurry. After foaming, only part of the negative ion powder is on the surface of the mat body, and most of it is embedded in the foaming pad. The negative ion powder embedded in the foaming pad is difficult to contact with the air, resulting in poor effect of releasing negative ions. In addition, because the particle size of the nano negative ion powder is too small, it is easy to agglomerate, resulting in poor dispersibility in the mat body, which makes it unable to play a better role.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a yoga mat capable of releasing negative oxygen ions and a preparation method thereof, aiming to solve the defect that the existing yoga mat containing negative ion powder has poor negative oxygen ion release effect.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for preparing a yoga mat capable of releasing negative oxygen ions, wherein the raw materials for preparing the yoga mat include: PVC paste resin powder, plasticizer, stabilizer, filler, foaming agent and negative ion powder;

[0007] The method comprises the following steps:

[0008] Step 1: Mix the foaming agent and the negative ion powder and ball-mill them into ultrafine particles, then soak them in a plasticizer, and after soaking, scatter them by ball milling to obtain fine mixed particles;

[0009] Step 2: Stir and mix the PVC paste resin powder, plasticizer, stabilizer, filler and fine mixed particles. When the viscosity of the slurry meets the requirements, stop stirring to obtain a mixed slurry;

[0010] Step 3: Spread the mixed slurry on the mesh, scrape it flat, and then foam it in a foaming furnace to obtain a yoga mat that can release negative oxygen ions.

[0011] In the method for preparing a yoga mat capable of releasing negative oxygen ions, in step 1, the particle size of the ultrafine mixed particles is 1500-3000 mesh.

[0012] In the method for preparing a yoga mat capable of releasing negative oxygen ions, the negative ion powder comprises at least one of tourmaline powder, cerium oxide powder, titanium dioxide powder and thorium oxide powder.

[0013] In the method for preparing a yoga mat capable of releasing negative oxygen ions, in step 2, the viscosity of the mixed slurry is greater than or equal to 40000 mPa.s.

[0014] In the preparation method of the yoga mat capable of releasing negative oxygen ions, the raw materials for preparing the yoga mat include, by weight, 100 parts of PVC resin powder, 80-90 parts of plasticizer, 2-3 parts of stabilizer, 80-120 parts of filler, 10-12 parts of foaming agent, and 0.5-2 parts of negative ion powder.

[0015] In the method for preparing a yoga mat capable of releasing negative oxygen ions, 0.05 to 0.1 parts of an antibacterial agent are also added in step 2.

[0016] In the method for preparing the yoga mat capable of releasing negative oxygen ions, the plasticizer is diisononyl phthalate or diisooctyl cyclohexane-1,2-dicarboxylate, or a combination of the two.

[0017] In the preparation method of the yoga mat capable of releasing negative oxygen ions, the PVC paste resin powder consists of a first PVC paste resin powder and a second PVC paste resin powder, the polymerization degree of the first PVC paste resin powder is 900-1000, and the polymerization degree of the second PVC paste resin powder is 1200-1300.

[0018] A yoga mat capable of releasing negative oxygen ions is prepared by the preparation method described above.

[0019] Beneficial effects:

[0020] The invention provides a preparation method of a yoga mat capable of releasing negative oxygen ions, comprising the steps of ball-milling negative ion powder and a foaming agent into ultrafine particles, making the ultrafine particles easy to agglomerate so that the two particles are agglomerated together, modifying the particles with a plasticizer to improve their dispersibility in a PVC resin, and then scattering the particles through ball milling to form fine mixed particles with a suitable particle size so as to have fine and dense pores. After foaming, the negative ion powder is on the inner wall of the pores and can better contact with the air, thereby facilitating the release of negative oxygen ions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention provides a flow chart of a method for preparing a yoga mat capable of releasing negative oxygen ions. DETAILED DESCRIPTION

[0022] The present invention provides a yoga mat capable of releasing negative oxygen ions and a preparation method thereof. In order to make the purpose, technical scheme and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] See also Figure 1 The present invention provides a method for preparing a yoga mat that can release negative oxygen ions. The raw materials for preparing the yoga mat include: PVC paste resin powder, plasticizer, stabilizer, filler, foaming agent and negative ion powder, wherein the negative ion powder can react with air and water to release negative oxygen ions, and the negative oxygen ions have the effects of relieving fatigue and purifying the air.

[0024] The method comprises the following steps:

[0025] Step 1: Mix the foaming agent and the negative ion powder and ball-mill them into ultrafine particles, then soak them in a plasticizer, and after soaking, scatter them by ball milling to obtain fine mixed particles;

[0026] Step 2: Stir and mix the PVC paste resin powder, plasticizer, stabilizer, filler and fine mixed particles. When the viscosity of the slurry meets the requirements, stop stirring to obtain a mixed slurry;

[0027] Step 3: Spread the mixed slurry on the mesh, scrape it flat, and then foam it in a foaming furnace to obtain a yoga mat that can release negative oxygen ions.

[0028] In the preparation method, after the negative ion powder and the foaming agent are mixed, they are first ball-milled into ultrafine particles. Since the particle size of the ultrafine particles is very small, they are easy to agglomerate to form microparticles containing ultrafine negative ion powder and foaming agent powder. The particle size of these microparticles is relatively large, with a diameter of up to 100 microns, and it is difficult to scatter them by ball milling (because they will agglomerate again after scattering); then, these microparticles are immersed in a plasticizer to allow the plasticizer to fully penetrate into the interior of the microparticles, which is equivalent to surface modification of the ultrafine negative ion powder and ultrafine foaming agent powder inside the microparticles; then, the microparticles are depolymerized into fine particles by ball milling and scattering. These fine particles are small agglomerated particles of ultrafine negative ion powder and foaming agent, and after being scattered, they will no longer agglomerate due to the action of the plasticizer, so that fine mixed particles containing negative ion powder and foaming agent can be obtained. When the fine mixed particles are added to the slurry, the surface is infiltrated with plasticizer, so the dispersibility and compatibility are good, and after the foaming agent in the fine mixed particles is foamed, most of the negative ion powder can be located on the inner wall of the pores or in the pores, so that the negative ions have more opportunities to contact with air and water, and the negative oxygen ions are better released. The yoga mat prepared by the preparation method has a good negative oxygen ion release function and a better user experience.

[0029] In order to make the negative ion powder and the foaming agent agglomerate together, in step one, after soaking, when scattering by ball milling, it is not necessary to scatter the particles too much. In a preferred embodiment, the particle size of the fine mixed particles is 1500-3000 mesh by ball milling. The fine mixed particles of this particle size can make the negative ion powder basically agglomerate with the foaming agent. After foaming, most of the negative ion powder can be in the pores, and the pores formed after foaming are moderate in size, fine and have good elasticity.

[0030] In a preferred embodiment, the raw materials for preparing the yoga mat include, by weight fraction: 100 parts of PVC resin powder, 80-90 parts of plasticizer, 2-3 parts of stabilizer, 80-120 parts of filler, 10-12 parts of foaming agent, and 0.5-2 parts of negative ion powder. The PVC resin powder includes a first PVC paste resin powder and a second PVC paste resin powder, and the first PVC paste resin powder and the second PVC paste resin powder have different polymerization degrees. By combining two PVC paste resin powders with different polymerization degrees, it is convenient to adjust the viscosity of the slurry, and it is also convenient to adjust the wear resistance and scratch resistance of the pad body; preferably, the polymerization degree of the first PVC paste resin powder is 900-1000, and the polymerization degree of the second PVC paste resin powder is 1200-1300. The plasticizer includes diisononyl phthalate or diisooctyl cyclohexane-1,2-dicarboxylate, or a combination of the two, preferably a combination of the two, which has a good plasticizing effect, will not precipitate, and is more environmentally friendly. The stabilizer is a calcium zinc stabilizer. The filler includes light calcium carbonate, talcum powder, silicon powder, etc., which can improve the mechanical strength of the pad body. The foaming agent is an AC foaming agent. The negative ion powder is at least one of tourmaline powder, cerium oxide powder, titanium dioxide powder, and thorium oxide, preferably a combination of multiple types, such as a combination of tourmaline powder with cerium oxide powder and titanium dioxide powder, or a combination of tourmaline powder with titanium dioxide powder and thorium oxide, or a combination of tourmaline powder, cerium oxide powder, titanium dioxide powder, thorium oxide, etc., and can also be other oxides that can generate negative oxygen ions. Preferably, it is a combination of tourmaline powder and titanium dioxide powder, the raw materials are easy to obtain, and the cost is low.

[0031] Since sweat will drip from the pad during use, sweat is prone to breed bacteria. Therefore, in a preferred embodiment, 0.05 to 0.1 parts of an antibacterial agent, such as a nano-silver antibacterial agent, is added in step 2, which has a good mildew and antibacterial effect.

[0032] In order to make the formed slurry better when applying and to facilitate application so that the thickness of the pad body is uniform, in the step 2, the viscosity of the mixed slurry is greater than or equal to 40000mPa.s. In the specific implementation process, the viscosity of the slurry can be greater than or equal to 40000mPa.s by adjusting the amount of plasticizer added, or adjusting the ratio of the first PVC paste resin powder to the second PVC paste resin powder, or by adding a tackifier.

[0033] A second aspect of the present invention provides a yoga mat capable of releasing negative oxygen ions. The yoga mat is prepared by the preparation method described above and has a good effect of releasing negative oxygen ions.

[0034] To further illustrate the preparation method of a yoga mat capable of releasing negative oxygen ions provided by the present invention, the following examples are provided.

[0035] Example 1

[0036] A method for preparing a yoga mat capable of releasing negative oxygen ions. The raw materials for preparing the yoga mat are composed of the following components by weight: 100 parts of PVC resin powder (a first PVC paste resin powder and a second PVC paste resin powder in a ratio of 1:1), 85 parts of a plasticizer (a diisononyl phthalate or a diisooctyl cyclohexane-1,2-dicarboxylate in a ratio of 1:1), 2.5 parts of a stabilizer, 90 parts of a filler, 11 parts of a foaming agent, 1 part of a negative ion powder (a tourmaline powder and a titanium dioxide powder in a ratio of 9:1), and 0.1 parts of an antibacterial agent.

[0037] The preparation steps are:

[0038] Step 1: Mix the foaming agent and the negative ion powder and ball-mill them into ultrafine particles, then soak them in the plasticizer for 24 hours. After soaking, grind them into particles with an average particle size of 2000 meshes by ball milling to obtain fine mixed particles;

[0039] Step 2: Stir and mix the PVC paste resin powder, plasticizer, stabilizer, filler and fine mixed particles. When the viscosity of the slurry is 40000 mPa.s, stop stirring to obtain a mixed slurry;

[0040] Step 3: Spread the mixed slurry on the mesh, scrape it flat, and then foam it at 195-220°C (zone 1 195-200°C, zone 2 215-220°C, zone 3 215-220°C, zone 4 90°C and below) to obtain a yoga mat that can release negative oxygen ions.

[0041] Example 2

[0042] A method for preparing a yoga mat capable of releasing negative oxygen ions is basically the same as that of Example 1, except that in step 1, the average particle size of the fine mixed particles is 1500 meshes.

[0043] Example 3

[0044] A method for preparing a yoga mat capable of releasing negative oxygen ions is basically the same as that of Example 1, except that in step 1, the average particle size of the fine mixed particles is 3000 meshes.

[0045] Example 4

[0046] A method for preparing a yoga mat capable of releasing negative oxygen ions is basically the same as that of Example 1, except that, by weight, the raw materials for preparing the yoga mat are composed of: 100 parts of PVC resin powder, 80 parts of plasticizer, 2 parts of stabilizer, 120 parts of filler, 10 parts of foaming agent, 2 parts of negative ion powder, and 0.05 parts of antibacterial agent.

[0047] Example 5

[0048] A method for preparing a yoga mat capable of releasing negative oxygen ions is basically the same as that of Example 1, except that, by weight, the raw materials for preparing the yoga mat are composed of: 100 parts of PVC resin powder, 90 parts of plasticizer, 3 parts of stabilizer, 80 parts of filler, 12 parts of foaming agent, 0.5 parts of negative ion powder, and 0.1 parts of antibacterial agent.

[0049] Comparative Example 1

[0050] A method for preparing a yoga mat capable of releasing negative oxygen ions. The raw material composition for preparing the yoga mat is the same as that of Example 1, and the preparation steps are as follows: PVC paste resin powder, plasticizer, stabilizer, filler and foaming agent, and negative ion powder (wherein the average particle size of the foaming agent and the negative ion powder are both 2000 meshes) are stirred and mixed, and when the viscosity of the slurry is 40000mPa.s, the stirring is stopped to obtain a mixed slurry; the mixed slurry is applied on a mesh cloth, flattened, and then foamed at 195-220°C (195-200°C for zone one, 215-220°C for zone two, 215-220°C for zone three, and 90°C or less for zone four) to obtain a yoga mat capable of releasing negative oxygen ions.

[0051] Comparative Example 2

[0052] A method for preparing a yoga mat capable of releasing negative oxygen ions. The raw material composition for preparing the yoga mat is the same as that of Example 1, and the preparation steps are as follows: respectively ball-milling a foaming agent and negative ion powder into an ultrafine particle mixture, stirring and mixing PVC paste resin powder, a plasticizer, a stabilizer, a filler and the ultrafine particle mixture, and stopping stirring when the viscosity of the slurry is 40000mPa.s to obtain a mixed slurry; applying the mixed slurry on a mesh cloth, flattening it, and then foaming it at 195-220°C (195-200°C in zone 1, 215-220°C in zone 2, 215-220°C in zone 3, and 90°C or less in zone 4) to obtain a yoga mat capable of releasing negative oxygen ions.

[0053] Comparative Example 3

[0054] A method for preparing a yoga mat capable of releasing negative oxygen ions, wherein the raw materials and steps for preparing the yoga mat are substantially the same as those of Example 1, except that, in step 1, after the soaking is completed, ball milling and scattering are not performed.

[0055] The negative oxygen ion release of the yoga mats prepared in Examples 1-5 and Comparative Examples 1-3 was tested. During the test, a yoga mat with an area of ​​50 cm x 50 cm (the thickness of the mat body was 6 mm) was cut and placed in a closed space of 50 cm x 50 cm x 50 cm. After 24 hours, the number of negative oxygen ions in the space was measured by a negative oxygen ion detector. The specific test results are shown in Table 1.

[0056]

[0057]

[0058] As shown in Table 1, the negative oxygen ion release of Examples 1-5 is relatively high, indicating that the preparation method can make the negative ion powder contact the air better, which is more conducive to the release of negative oxygen ions, and the negative oxygen ion release will increase with the increase in the amount of negative ion powder added. As shown in Examples 1-3, when the particle size of the fine mixed particles exceeds 3000 mesh, the negative oxygen ion release will not increase. It may be that when the particles are too fine, the agglomeration of the negative ion powder and the foaming agent will be destroyed.

[0059] It can be seen from Comparative Example 1 that the number of negative oxygen ions is more than one thousand less than that of Example 1. The possible reason is that the negative ion powder and the foaming agent are not agglomerated during preparation, so the amount of negative ion powder in the pores after foaming is not large, resulting in insufficient contact with the air.

[0060] It can be seen from Comparative Example 2 that although the negative ion powder and the foaming agent are ground into ultrafine particles, they cannot agglomerate because they are ball-milled separately, so the negative oxygen ion release is also worse than that of Example 1.

[0061] In Comparative Example 3, since the particles are not sprinkled after soaking in step 1, the particle size of the fine mixed particles is larger, resulting in poor dispersibility of the fine mixed particles, which specifically affects the dispersibility of the negative ion powder. Therefore, even if the negative ions are in the pores, the release amount of negative oxygen ions will still be lower than that of Example 1.

[0062] It can be seen that it is very important to agglomerate the negative ion powder and the foaming agent into fine particles during preparation, which will directly affect the dispersibility of the negative ion powder and whether it is in the pores. The present application ball-mills the negative ion powder and the foaming agent into ultrafine particles, utilizes the easy agglomeration of ultrafine particles, and agglomerates the two together, and then uses a plasticizer to modify it to improve its dispersibility in the PVC resin, and then forms fine mixed particles of suitable particle size through ball milling and scattering to have fine pores. After foaming, the negative ion powder is on the inner wall of the pore, can better contact with the air, and is convenient for releasing negative oxygen ions.

[0063] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A method for preparing a yoga mat capable of releasing negative oxygen ions, wherein the raw materials for preparing the yoga mat include: PVC paste resin powder, plasticizer, stabilizer, filler, foaming agent and negative ion powder; characterized in that, The method comprises the following steps: Step 1: Mix the foaming agent and the negative ion powder and ball-mill them into ultrafine particles, then soak them in a plasticizer, and after soaking, scatter them by ball milling to obtain fine mixed particles; Step 2: Stir and mix the PVC paste resin powder, plasticizer, stabilizer, filler and fine mixed particles. When the viscosity of the slurry meets the requirements, stop stirring to obtain a mixed slurry; Step 3: Spread the mixed slurry on the mesh, scrape it flat, and then foam it in a foaming furnace to obtain a yoga mat that can release negative oxygen ions.

2. The method for preparing a yoga mat capable of releasing negative oxygen ions according to claim 1, characterized in that: In the step 1, the particle size of the ultrafine mixed particles is 1500-3000 mesh.

3. The method for preparing a yoga mat capable of releasing negative oxygen ions according to claim 1, characterized in that: The negative ion powder includes at least one of tourmaline powder, cerium oxide powder, titanium dioxide powder and thorium oxide powder.

4. The method for preparing a yoga mat capable of releasing negative oxygen ions according to claim 1, characterized in that: In the step 2, the viscosity of the mixed slurry is greater than or equal to 40000 mPa.s.

5. The method for preparing a yoga mat capable of releasing negative oxygen ions according to claim 1, characterized in that: Calculated by weight, the raw materials for preparing the yoga mat include: 100 parts of PVC resin powder, 80-90 parts of plasticizer, 2-3 parts of stabilizer, 80-120 parts of filler, 10-12 parts of foaming agent, and 0.5-2 parts of negative ion powder.

6. The method for preparing a yoga mat capable of releasing negative oxygen ions according to claim 5, characterized in that: In the step 2, 0.05 to 0.1 parts of an antibacterial agent are also added.

7. The method for preparing a yoga mat capable of releasing negative oxygen ions according to claim 5, characterized in that: The plasticizer is diisononyl phthalate or diisooctyl cyclohexane-1,2-dicarboxylate, or a combination of the two.

8. The method for preparing a yoga mat capable of releasing negative oxygen ions according to claim 5, characterized in that: The PVC paste resin powder consists of a first PVC paste resin powder and a second PVC paste resin powder, the first PVC paste resin powder has a polymerization degree of 900-1000, and the second PVC paste resin powder has a polymerization degree of 1200-1300.

9. A yoga mat capable of releasing negative oxygen ions, characterized in that: The invention is prepared by the preparation method according to any one of claims 1 to 8.

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