A deodorizing insole and its preparation method

Abstract

An odor-removing insole and its preparation method are disclosed. The odor-removing insole includes an upper and lower layer that can be interlocked, and odor-removing particles disposed between the upper and lower layers. The lower layer has an installation groove for installing the odor-removing particles, and the upper layer has ventilation holes opposite to the installation groove. The odor-removing particles are composed of the following raw materials: diatomaceous earth, zeolite powder, epoxy resin, lemon eucalyptus oil, zinc oxide, and magnesium stearate. By defining the specific structure of the insole, the invention provides ventilation holes in the upper layer opposite to the odor-removing particles. Volatile odorous gases generated inside the shoe enter the lower layer through the ventilation holes and are adsorbed by the odor-removing particles, thus keeping the air inside the shoe fresh.

Description

Technical Field

[0001] This invention belongs to the field of insole preparation, specifically relating to a deodorizing insole and its preparation method. Background Technology

[0002] Insoles are widely used in the footwear industry, for health purposes, and for special functions; they are generally divided into two types: footwear factory-application insoles and market-commercial insoles. Footwear factory-application insoles are mainly designed to fit the outsole and midsole of shoes, creating corresponding shapes; size charts are made according to the last or upper, and the corresponding shapes are produced. Market-commercial insoles are products designed by developers and sold directly in the market.

[0003] Existing deodorizing insoles typically use natural plant-woven fabrics as linings. A material with antibacterial, antifungal, and deodorizing properties is adhered to the upper surface of the lining on one side. The upper surface is covered with cotton fabric, and the lower surface is covered with non-woven fabric and adhesive. The edges are bound with binding tape and sewn together, which also has certain effects in eliminating foot odor, absorbing sweat, and nourishing the feet.

[0004] However, since the original design of the insole lining was only coated with antibacterial and deodorizing paint on one side, the side without paint, which is in contact with the shoe, has a weaker effect in inhibiting bacteria, fungi, and deodorizing than the coated side. When the shoes are not clean or the user sweats a lot through the insole, it will affect the performance and needs further improvement. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a deodorizing insole. Another purpose is to provide a method for preparing the above-mentioned deodorizing insole.

[0006] The present invention adopts the following technical solution:

[0007] An odor-removing insole includes an upper and lower layer that can be snapped together and odor-removing particles disposed between the upper and lower layers. The lower layer is provided with an installation groove for installing the odor-removing particles, and the upper layer is provided with a vent hole opposite to the installation groove.

[0008] The deodorizing granules are composed of the following raw materials in parts by weight: 50-60 parts diatomaceous earth, 25-35 parts zeolite powder, 15-20 parts epoxy resin, 5-10 parts lemon eucalyptus oil, 3-7 parts zinc oxide, and 6-10 parts magnesium stearate.

[0009] Preferably, the lower layer is provided with a positioning post extending upward from its top surface, and the bottom surface of the upper layer is formed with a positioning hole for the positioning post to be inserted.

[0010] A method for preparing an odor-removing insole includes the following steps:

[0011] Step 1: Molding to form the upper and lower semi-finished products;

[0012] Step 2: Prepare deodorizing liquid, and soak the upper and lower semi-finished products in the deodorizing liquid, then dry them to form the upper and lower layers;

[0013] Step 3: Weigh the raw materials according to the proportion of the deodorizing granules, mix them evenly, and press them into deodorizing granules;

[0014] Step four: Place the deodorizing granules in the installation groove and embed the positioning post into the positioning hole to connect the upper and lower layers, forming the deodorizing insole.

[0015] Preferably, the deodorizing liquid is composed of the following raw materials in parts by weight: 20-27 parts copper sulfate, 5-7 parts carboxymethyl cellulose, 10-16 parts salicylic acid, 12-18 parts boric acid, 3-7 parts stearic acid, 8-15 parts ammonium sulfate, 2-5 parts sodium alginate, 2-4 parts citric acid, and 30-40 parts deionized water.

[0016] Preferably, in step two, when soaking the upper and lower semi-finished products, they are first soaked in deodorizing liquid for 12-16 hours, then dried at 90-100℃ until the moisture content is below 10%; then soaked again in deodorizing liquid for more than 24 hours, then dried at 80-90℃ until the moisture content is below 20%, then removed and dried naturally until the moisture content is below 1%, so as to obtain the upper and lower layers.

[0017] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are:

[0018] First, this invention defines the specific structure of the insole, with ventilation holes on the upper layer opposite the deodorizing particles. Volatile odorous gases generated inside the shoe enter through the ventilation holes and are absorbed by the deodorizing particles in the lower layer, keeping the air inside the shoe fresh. The diatomaceous earth in the deodorizing particles has high porosity and a large pore volume; the zeolite powder contains numerous small pores. Volatile odorous gases generated inside the shoe are absorbed by the pores in the diatomaceous earth and zeolite powder after passing through the deodorizing particles, achieving a deodorizing effect. Simultaneously, the lemon eucalyptus oil in the deodorizing particles can achieve antibacterial and antifungal effects, inhibiting the growth of bacteria and fungi inside the shoe and enhancing the overall deodorizing and antibacterial effect. The combination of epoxy resin and magnesium stearate ensures that the molded deodorizing particles are not easily scattered, guaranteeing the effectiveness of the deodorizing particles.

[0019] Secondly, the upper and lower layers are soaked and dried in deodorizing liquid to give the upper and lower layers their own deodorizing function, further enhancing the deodorizing effect of the insole; in particular, copper sulfate is combined with salicylic acid, boric acid and ammonium sulfate as the main deodorizing components, and works synergistically with other auxiliary components to ensure the overall deodorizing effect of the deodorizing liquid;

[0020] Third, by limiting the drying process of the upper and lower layers, the deodorizing effect of the deodorizing liquid can be maintained on the insole for more than 60 days. At the same time, the upper and lower layers are detachably connected by positioning posts and positioning holes, which makes it easy to replace the deodorizing particles and extend the service life of the deodorizing insole. Attached Figure Description

[0021] Figure 1 This is a partial structural cross-sectional view of the insole. Detailed Implementation

[0022] The present invention will be further described below through specific embodiments.

[0023] Reference Figure 1 As shown, an odor-removing insole includes an upper layer 1 and a lower layer 2 that can be snapped together, and odor-removing particles 3 disposed between the upper layer 1 and the lower layer 2. The lower layer 2 is provided with an installation groove 21 for installing the odor-removing particles 3, and the upper layer 1 is provided with a vent hole 11 opposite to the installation groove 21. Specifically, the lower layer 2 is provided with a positioning post 22 extending upward from its top surface, and the bottom surface of the upper layer 1 is formed with a positioning hole 12 for the positioning post 22 to be inserted.

[0024] The deodorizing granules 3 are composed of the following raw materials in parts by weight: 50-60 parts diatomaceous earth, 25-35 parts zeolite powder, 15-20 parts epoxy resin, 5-10 parts lemon eucalyptus oil, 3-7 parts zinc oxide, and 6-10 parts magnesium stearate; preferably, the deodorizing granules are composed of the following raw materials in parts by weight: 55 parts diatomaceous earth, 30 parts zeolite powder, 18 parts epoxy resin, 8 parts lemon eucalyptus oil, 5 parts zinc oxide, and 8 parts magnesium stearate.

[0025] A method for preparing an odor-removing insole includes the following steps:

[0026] Step 1: Molding to form the upper and lower semi-finished products;

[0027] Step 2: Prepare deodorizing liquid, and soak the upper and lower semi-finished products in the deodorizing liquid and dry them to form upper layer 1 and lower layer 2;

[0028] Step 3: Weigh the raw materials according to the proportion of deodorizing granules 3, mix them evenly, and press them to form deodorizing granules 3;

[0029] Step four: Place the deodorizing particles 3 into the installation groove 21 and embed the positioning post 22 into the positioning hole 12 to connect the upper layer 1 and the lower layer 2, forming the deodorizing insole.

[0030] The deodorizing liquid is composed of the following raw materials in parts by weight: 20-27 parts copper sulfate, 5-7 parts carboxymethyl cellulose, 10-16 parts salicylic acid, 12-18 parts boric acid, 3-7 parts stearic acid, 8-15 parts ammonium sulfate, 2-5 parts sodium alginate, 2-4 parts citric acid, and 30-40 parts deionized water. In the most preferred embodiment, the deodorizing liquid is composed of the following raw materials in parts by weight: 24 parts copper sulfate, 6 parts carboxymethyl cellulose, 13 parts salicylic acid, 15 parts boric acid, 5 parts stearic acid, 12 parts ammonium sulfate, 3 parts sodium alginate, 3 parts citric acid, and 35 parts deionized water.

[0031] In step two, when soaking the upper and lower semi-finished products, they are first soaked in a deodorizing solution for 12-16 hours, then dried at 90-100℃ until the moisture content is below 10%; then soaked again in the deodorizing solution for more than 24 hours, then dried at 80-90℃ until the moisture content is below 20%, and then dried naturally until the moisture content is below 1% to obtain upper layer 1 and lower layer 2. In the most preferred embodiment, when soaking the upper and lower semi-finished products, they are first soaked in a deodorizing solution for 15 hours, then dried at 95℃ until the moisture content is below 10%; then soaked again in the deodorizing solution for more than 24 hours, then dried at 85℃ until the moisture content is below 20%, and then dried naturally until the moisture content is below 1% to obtain upper layer 1 and lower layer 2.

[0032] This invention defines a specific structure for the insole. In the upper layer 1, ventilation holes 11 are positioned opposite deodorizing particles 3. Volatile odorous gases generated inside the shoe enter the lower layer 2 through the ventilation holes 11 and are adsorbed by the deodorizing particles 3, keeping the air inside the shoe fresh. The diatomaceous earth in the deodorizing particles 3 has high porosity and a large pore volume; the zeolite powder contains numerous small pores. Volatile odorous gases generated inside the shoe are adsorbed by the pores in the diatomaceous earth and zeolite powder after passing through the deodorizing particles, achieving a deodorizing effect. Simultaneously, the lemon eucalyptus oil in the deodorizing particles 3 has antibacterial and antifungal properties, inhibiting the growth of bacteria and fungi inside the shoe and enhancing the overall deodorizing and antibacterial effect. The combination of epoxy resin and magnesium stearate ensures that the molded deodorizing particles are not easily dispersed, guaranteeing their effectiveness.

[0033] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present invention should still fall within the scope of the patent of the present invention.

Claims

1. A deodorizing insole, characterized in that: It includes an upper and lower layer that can be interlocked and deodorizing particles disposed between the upper and lower layers. The lower layer is provided with an installation groove for installing the deodorizing particles, and the upper layer is provided with a vent hole opposite to the installation groove. The deodorizing granules are composed of the following raw materials in parts by weight: 50-60 parts diatomaceous earth, 25-35 parts zeolite powder, 15-20 parts epoxy resin, 5-10 parts lemon eucalyptus oil, 3-7 parts zinc oxide, and 6-10 parts magnesium stearate. Its preparation method includes the following steps: Step 1: Molding to form the upper and lower semi-finished products; Step 2: Prepare deodorizing liquid, and soak the upper and lower semi-finished products in the deodorizing liquid, then dry them to form the upper and lower layers; Step 3: Weigh the raw materials according to the proportion of the deodorizing granules, mix them evenly, and press them into deodorizing granules; Step 4: Place the deodorizing granules in the installation groove and embed the positioning post into the positioning hole to connect the upper and lower layers and form the deodorizing insole. The deodorizing liquid is composed of the following raw materials in parts by weight: 20-27 parts copper sulfate, 5-7 parts carboxymethyl cellulose, 10-16 parts salicylic acid, 12-18 parts boric acid, 3-7 parts stearic acid, 8-15 parts ammonium sulfate, 2-5 parts sodium alginate, 2-4 parts citric acid, and 30-40 parts deionized water.

2. The deodorizing insole according to claim 1, characterized in that: The lower layer is provided with a positioning post extending upward from its top surface, and the bottom surface of the upper layer is formed with a positioning hole for the positioning post to be inserted.

3. The deodorizing insole according to claim 1, characterized in that: In step two, when soaking the upper and lower semi-finished products, they are first soaked in deodorizing liquid for 12-16 hours, then dried at 90-100℃ until the moisture content is below 10%; then they are soaked in deodorizing liquid again for more than 24 hours, then dried at 80-90℃ until the moisture content is below 20%, then removed and dried naturally until the moisture content is below 1% to obtain the upper and lower layers.

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