CN118121008A - Novel ice shoe pad and ice leather shoes - Google Patents
Novel ice shoe pad and ice leather shoes Download PDFInfo
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- CN118121008A CN118121008A CN202310958899.7A CN202310958899A CN118121008A CN 118121008 A CN118121008 A CN 118121008A CN 202310958899 A CN202310958899 A CN 202310958899A CN 118121008 A CN118121008 A CN 118121008A
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- Prior art keywords
- ice
- material layer
- heat dissipation
- feeling
- insole
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- 239000010985 leather Substances 0.000 title abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 110
- 230000017525 heat dissipation Effects 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 87
- 239000000499 gel Substances 0.000 claims description 66
- 238000010438 heat treatment Methods 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 11
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 7
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- HXITXNWTGFUOAU-UHFFFAOYSA-N phenylboronic acid Chemical compound OB(O)C1=CC=CC=C1 HXITXNWTGFUOAU-UHFFFAOYSA-N 0.000 claims description 6
- 238000009958 sewing Methods 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 108010010803 Gelatin Proteins 0.000 claims description 3
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 239000008273 gelatin Substances 0.000 claims description 3
- 229920000159 gelatin Polymers 0.000 claims description 3
- 235000019322 gelatine Nutrition 0.000 claims description 3
- 235000011852 gelatine desserts Nutrition 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000002267 hypothalamic effect Effects 0.000 claims 1
- 238000004026 adhesive bonding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 108010025899 gelatin film Proteins 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 210000004243 sweat Anatomy 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 206010016326 Feeling cold Diseases 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention relates to a novel ice sense insole and ice sense leather shoes, wherein the ice sense insole comprises a base layer, an ice sense heat dissipation gel material layer and an inner skin material layer which are sequentially arranged from bottom to top, a plurality of concave holes are formed in the upper surface of the base layer, a plurality of protruding parts are formed in the lower surface of the ice sense heat dissipation gel material layer, and the protruding parts correspond to the concave holes in position and size one by one; when the ice-feeling heat dissipation gel material layer is arranged on the upper surface of the base layer, the protruding part is inserted into the concave hole, so that the ice-feeling heat dissipation gel material layer is prevented from sliding in the walking process; the ice sense radiating gel material layer enables the temperature of the ice sense insole to be 1-2 ℃ lower than the temperature of the sole of a human body; the lining material layer is fixedly connected with the base layer, so that the ice-feeling heat dissipation gel material layer is fixedly clamped between the lining material layer and the base layer.
Description
Technical Field
The invention relates to the technical field of shoe pad and leather shoe manufacturing, in particular to a novel ice shoe pad and ice leather shoe.
Background
Shoes in the prior art generally have a heat preservation function, and some shoes also have a heating function, and the shoes are usually realized by means of electronic heating or material heat preservation heating and the like. However, no ice feeling or shoes with cooling function are available in the market at present, or shoes which feel cool when worn, but the shoes cannot be too icy, because the feet of a human body are at a certain temperature and are stimulated by internal blood circulation, certain temperature is required to be ensured, even ice feeling materials cannot be cooled too much, and the shoes only need to have a very good cooling feeling 1-2 ℃ lower than the daily foot temperature of people, but the physiological problem of the human body is not influenced. If the temperature is adjusted to 26 ℃, the temperature is immediately reduced, and the cool feeling caused by the cool air can be sensed, if the air conditioner is started in summer, if the cool feeling is not sensed at 27 ℃. This is the effect of a temperature difference of only 1 ℃.
When the insole is applied with the ice feel gel material, the daily temperature of the insole is lower than that of a common daily insole when the insole is placed below a sole plate by 1-2 degrees, namely, the temperature of the foot of a user is lower than that of the foot of the user by about 1 degree in daily wearing, so that the insole can be just suitable for hot summer, the foot of the user is more cool, and the temperature of the human body is more suitable for comfort.
Disclosure of Invention
The invention aims to provide a novel ice shoe pad and ice leather shoes, and aims to solve the technical problems at least including how to enable the shoe pad and the leather shoes to have a cooling function and improve wearing comfort.
In order to achieve the above purpose, the invention provides an ice sense insole, which comprises a base layer, an ice sense heat dissipation gel material layer and a lining material layer which are sequentially arranged from bottom to top, wherein a plurality of concave holes are formed in the upper surface of the base layer, a plurality of protruding parts are formed in the lower surface of the ice sense heat dissipation gel material layer, and the protruding parts correspond to the concave holes in position and size one by one; when the ice-feeling heat dissipation gel material layer is arranged on the upper surface of the base layer, the protruding part is inserted into the concave hole, so that the ice-feeling heat dissipation gel material layer is prevented from sliding in the walking process; the ice sense radiating gel material layer enables the temperature of the ice sense insole to be 1-2 ℃ lower than the temperature of the sole of a human body; the lining material layer is fixedly connected with the base layer, so that the ice-feeling heat dissipation gel material layer is fixedly clamped between the lining material layer and the base layer.
Preferably, the concave hole is a blind hole.
Preferably, the protruding portion is a cylindrical protrusion.
Preferably, the lining material layer and the base layer are fixedly connected by bonding or sewing.
Preferably, the material of the base layer is a sponge material, a hypotonic material or a pu material.
Preferably, the lining material layer is made of pigskin, cowhide, sheepskin or mesh cloth.
Preferably, the ice feel heat dissipation gel material layer is also respectively combined with the lining material layer and the base layer by means of gluing.
Preferably, the preparation method of the ice sense heat dissipation gel material layer comprises the following steps:
S1, uniformly mixing 3-5% of phenylboronic acid grafted methacrylic acid acylated gelatin solution, 2-3% of polyvinyl alcohol solution, 0.4-0.6 g/mL of polyethylene glycol methacrylate solution, 150-165 mmol/L of sodium chloride solution, 5-7 mmol/L of potassium chloride solution and 1.5-3.6 mmol/L of calcium chloride solution in equal proportion, putting the mixture into a freezing chamber, regulating the temperature to minus 20 ℃ and cooling the mixture for more than 46 hours; the longer the storage time in the freezer compartment, the higher the mechanical stability.
S2, adding deionized water and carboxymethyl cellulose into the mixture cooled in the step S1, uniformly stirring, and then sending into a heating box to heat according to a preset heating curve to form a gel network;
And S3, injecting the product with the gel network formed in the step S2 into a mould, molding the product into a required shape and thickness, and cooling the product to room temperature to obtain the ice sense heat dissipation gel material layer.
Preferably, the predetermined heating profile described in step S2 corresponds to the following heating profile formula:
T=85；
Wherein T is the actual heating temperature, and the unit is DEG C; t is heating time, the unit is minutes, and t is more than 0 and less than 120.
Preferably, the mass of deionized water added in step S2 is 2.2 to 2.4 times the mass of the mixture after cooling in step S1.
Preferably, the carboxymethyl cellulose added in step S2 is a powdery solid, and the mass of the carboxymethyl cellulose is 2% to 6% of the mass of the mixture cooled in step S1.
The invention also provides a novel ice leather shoe, which comprises the ice shoe pad, and the ice heat dissipation gel material layer is arranged at the two edge rows and the front big end row of the ice leather shoe.
Further preferably, the ice feeling heat dissipation gel material layer is arranged between the face skin and the inner skin of the ice feeling leather shoes, and the ice feeling heat dissipation gel material layer and the face skin and the inner skin of the ice feeling leather shoes are fixed together by gluing and/or sewing.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
In actual use experience, the ice-feeling heat dissipation gel material adopted by the ice-feeling insoles and the ice-feeling leather shoes has obvious heat dissipation performance, and particularly has two advantages when walking for a long time: one advantage is that the foot feel is very comfortable, and the gel has a soft hand feel design, so the foot can not feel tired even standing for a long time, and the gel can not easily slide due to the antiskid cross design in the walking process. Secondly, the heat dissipation effect is very obvious, the existence of foot heating is hardly felt, the temperature of foot feeling is lower than that of the heat dissipation gel without using ice skin, and the heat dissipation gel is not influenced by the external temperature at all.
The application also creatively provides a heating curve formula, and test results show that when the ice-feeling heat dissipation gel material layer is heated by adopting the heating curve provided by the application, compared with the heating curve which is always heated by adopting the same temperature, the elasticity of the ice-feeling heat dissipation gel material layer is improved by 23.76 times under the condition that other conditions and components are the same, and meanwhile, the service life is prolonged by 5.7 times unexpectedly, which is far beyond the reasonable expectation of the technicians in the field, and unexpected technical effects are obtained.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and do not limit the application.
Fig. 1 is a schematic view of the basic layer structure of the ice feeling insole according to the present invention.
Fig. 2 is a schematic structural view of an ice-feeling heat dissipation gel material layer of the ice-feeling insole according to the present invention.
Description of the embodiments
The present invention is described in more detail below to facilitate an understanding of the present invention.
As shown in fig. 1 and 2, the ice feeling insole of the invention comprises a base layer 1, an ice feeling heat dissipation gel material layer 2 and an inner skin material layer which are sequentially arranged from bottom to top, wherein a plurality of concave holes 11 are formed in the upper surface of the base layer 1, a plurality of protruding parts 22 are formed in the lower surface 21 of the ice feeling heat dissipation gel material layer 2, and the protruding parts correspond to the concave holes in position and size one by one; when the ice feeling heat dissipation gel material layer 2 is arranged on the upper surface of the base layer 1, the protruding part is inserted into the concave hole, so that the ice feeling heat dissipation gel material layer 2 is prevented from sliding in the walking process; the ice sense heat dissipation gel material layer 2 enables the temperature of the ice sense insole to be 1-2 ℃ lower than the temperature of the sole of a human body; the lining material layer is fixedly connected with the base layer 1, so that the ice sense heat dissipation gel material layer 2 is fixedly clamped between the lining material layer and the base layer 1.
Preferably, the concave hole 11 is a blind hole.
Preferably, the boss 22 is a cylindrical boss.
Preferably, the lining material layer is fixedly connected with the base layer 1 by bonding or sewing.
Preferably, the material of the base layer 1 is a sponge material, a hypotonic material or a pu material.
Preferably, the lining material layer is made of pigskin, cowhide, sheepskin or mesh cloth.
Preferably, the ice feel heat dissipation gel material layer 2 is also respectively combined with the lining material layer and the base layer 1 by gluing.
Preferably, the heel position of the base layer 1 is provided with a recess 12, and a surrounding wall 13 is provided around the recess 12.
Preferably, the preparation method of the ice feel heat dissipation gel material layer 2 comprises the following steps:
S1, uniformly mixing 3-5% of phenylboronic acid grafted methacrylic acid acylated gelatin solution, 2-3% of polyvinyl alcohol solution, 0.4-0.6 g/mL of polyethylene glycol methacrylate solution, 150-165 mmol/L of sodium chloride solution, 5-7 mmol/L of potassium chloride solution and 1.5-3.6 mmol/L of calcium chloride solution in equal proportion, putting the mixture into a freezing chamber, regulating the temperature to minus 20 ℃ and cooling the mixture for more than 46 hours; the longer the storage time in the freezer compartment, the higher the mechanical stability.
S2, adding deionized water and carboxymethyl cellulose into the mixture cooled in the step S1, uniformly stirring, and then sending into a heating box to heat according to a preset heating curve to form a gel network;
And S3, injecting the product with the gel network formed in the step S2 into a mould, molding the product into a required shape and thickness, and cooling the product to room temperature to obtain the ice sense heat dissipation gel material layer 2.
The test result shows that the ice feeling heat dissipation gel material layer 2 prepared by the preparation method provided by the invention can stably enable the temperature of the ice feeling insole to be 1-2 ℃ lower than the temperature of the sole of a human body.
Preferably, the predetermined heating profile described in step S2 is fitted by the applicant through a number of experimental data. The heating curve accords with the following heating curve formula:
T=85；
Wherein T is the actual heating temperature, and the unit is DEG C; t is heating time, the unit is minutes, and t is more than 0 and less than 120.
It should be noted that the physical unit minutes of the parameter t in the heating curve formula is only used to represent the magnitude of the value, and the physical unit itself does not participate in the calculation, because the heating curve formula is obtained by fitting experimental data, not by physically pushing. For example, when t takes 10 minutes, the physical unit of minutes is merely used to characterize the value of 10, and if seconds are used as the unit, the value of 10 becomes 600 (i.e., 10 minutes equals 600 seconds), resulting in a change in the calculated value.
Test results show that when the ice-feeling heat dissipation gel material layer is heated by adopting the heating curve provided by the application, the elasticity of the prepared ice-feeling heat dissipation gel material layer is improved by 23.76 times surprisingly under the same conditions and components as compared with the heating curve always adopting the same temperature, and the service life is prolonged by 5.7 times unexpectedly, which is far beyond the reasonable expectation of the technicians in the field, and unexpected technical effects are obtained.
Preferably, the mass of deionized water added in step S2 is 2.2 to 2.4 times the mass of the mixture after cooling in step S1.
Preferably, the carboxymethyl cellulose added in step S2 is a powdery solid, and the mass of the carboxymethyl cellulose is 2% to 6% of the mass of the mixture cooled in step S1.
The ice-feeling heat dissipation gel material layer is a gel film which can dissipate heat, and the film and the bottom of the insole are simultaneously attached by two modes of mutual crossing (namely inserting the convex part into the concave hole) and gluing. The crossing mode is to prevent the gel film from sliding back and forth at the bottom of the insole.
The gel film is basically the same as a wet tissue capable of automatically humidifying, and can be said to be basically equivalent to the principle that a human body dissipates heat through perspiration. The film is covered on the original material of the insole, foot sweat or water vapor is generated after a human body walks, the water vapor and the sweat can enter the gel film, the water in the gel film can be quickly evaporated and quickly take away heat, and the temperature of a heat source is reduced. When people do not walk or shoes are placed, the gel film can spontaneously absorb water vapor from the surrounding environment, and the water is supplemented, so that the recycling is realized.
The manufacturing method of the ice feeling insole comprises the following steps:
Firstly, manufacturing a base layer by adopting a sponge material, a marine material or a pu material, and processing a plurality of concave holes on the upper surface of the base layer;
Secondly, manufacturing the ice-feeling heat dissipation gel material layer according to the preparation method of the ice-feeling heat dissipation gel material layer, and processing a plurality of protruding parts on the lower surface of the ice-feeling heat dissipation gel material layer through mould pressing;
Thirdly, inserting a plurality of protruding parts on the lower surface of the ice sense heat dissipation gel material layer into a plurality of concave holes on the upper surface of the base layer;
And fourthly, combining the ice-feeling heat dissipation gel material layer with the lining material layer and the base layer in an adhesive manner, and fixedly clamping the ice-feeling heat dissipation gel material layer between the lining material layer and the base layer.
The invention also provides a novel ice leather shoe, which is characterized in that the ice cold gel material is applied to the inner side surface and the head row position of the shoe. The material is mainly applied to the two heel row positions of the shoes and the heel row position in front of the shoes according to the analysis of the conventional front-loading leather shoes and leisure template structures.
In addition, the cold gel material cannot directly contact with the skin, so that the cold gel material having ice feel is placed between the face skin and the inner skin of the leather shoe. In order to prevent the ice-feeling cold gel material from moving between the two materials (namely the face skin and the inner skin of the leather shoes), two different modes of gluing and sewing are combined with the two modes, so that the ice-feeling cold gel material cannot shift, the shoes can wrap the feet after being molded, the feet can be cooled by the two feet in hot summer, and comfort is achieved.
The general structure of leather shoes is divided into a face leather material, a lining leather material and a lining (shaping effect), and other auxiliary materials such as a toe cap and a main root are added, wherein the cold gel material with ice feel is added between the face leather material and the lining leather material at present, so that the ice feel inside the leather shoes is mainly improved, particularly, shoes with medium and high uppers are needed to be worn, particularly in summer, but people with feet easy to sweat are troublesome, and after the cold gel material with ice feel is applied inside the leather shoes, the feet feel cool and comfortable all the time.
In a preferred embodiment, the ice feel shoe comprises the ice feel insole, and the ice feel heat dissipation gel material layer is arranged at two edge rows and a front big end row of the ice feel shoe.
Further preferably, the ice feeling heat dissipation gel material layer is arranged between the face skin and the inner skin of the ice feeling leather shoes, and the ice feeling heat dissipation gel material layer and the face skin and the inner skin of the ice feeling leather shoes are fixed together by gluing and/or sewing.
The foregoing describes preferred embodiments of the present invention, but is not intended to limit the invention thereto. Modifications and variations to the embodiments disclosed herein may be made by those skilled in the art without departing from the scope and spirit of the invention.
Claims (10)
1. The ice sense insole is characterized by comprising a base layer, an ice sense heat dissipation gel material layer and an inner skin material layer which are sequentially arranged from bottom to top, wherein a plurality of concave holes are formed in the upper surface of the base layer, a plurality of protruding parts are formed in the lower surface of the ice sense heat dissipation gel material layer, and the protruding parts correspond to the concave holes in position and size one by one; when the ice-feeling heat dissipation gel material layer is arranged on the upper surface of the base layer, the protruding part is inserted into the concave hole, so that the ice-feeling heat dissipation gel material layer is prevented from sliding in the walking process; the ice sense radiating gel material layer enables the temperature of the ice sense insole to be 1-2 ℃ lower than the temperature of the sole of a human body; the lining material layer is fixedly connected with the base layer, so that the ice-feeling heat dissipation gel material layer is fixedly clamped between the lining material layer and the base layer.
2. The ice feeling insole of claim 1, wherein said recess is a blind hole.
3. The ice feeling insole of claim 1, wherein said convex portion is a cylindrical convex.
4. The ice feeling insole of claim 1, wherein said inner skin material layer is fixedly connected with said base layer by bonding or sewing.
5. The ice feeling insole of claim 1, wherein the base layer is made of sponge material, hypothalamic material or pu material.
6. The ice feeling insole of claim 1, wherein said inner skin material layer is made of pigskin, cowhide, sheepskin or mesh material.
7. The ice feel insole of claim 1, wherein said ice feel heat dissipation gel material layer is further adhesively bonded to said inner skin material layer and said base layer, respectively.
8. The ice feeling insole of claim 1, wherein the preparation method of the ice feeling heat dissipation gel material layer comprises the following steps:
S1, uniformly mixing 3-5% of phenylboronic acid grafted methacrylic acid acylated gelatin solution, 2-3% of polyvinyl alcohol solution, 0.4-0.6 g/mL of polyethylene glycol methacrylate solution, 150-165 mmol/L of sodium chloride solution, 5-7 mmol/L of potassium chloride solution and 1.5-3.6 mmol/L of calcium chloride solution in equal proportion, putting the mixture into a freezing chamber, regulating the temperature to minus 20 ℃ and cooling the mixture for more than 46 hours;
s2, adding deionized water and carboxymethyl cellulose into the mixture cooled in the step S1, uniformly stirring, and then sending into a heating box to heat according to a preset heating curve to form a gel network;
And S3, injecting the product with the gel network formed in the step S2 into a mould, molding the product into a required shape and thickness, and cooling the product to room temperature to obtain the ice sense heat dissipation gel material layer.
9. The ice feel insole of claim 8, wherein the predetermined heating profile in step S2 conforms to the following heating profile formula:
T=85；
Wherein T is the actual heating temperature, and the unit is DEG C; t is heating time, the unit is minutes, and t is more than 0 and less than 120.
10. An ice feel shoe, characterized in that the ice feel shoe comprises an ice feel insole according to any one of claims 1 to 9, and ice feel heat dissipation gel material layers are arranged at two side row positions and a front big end row position of the ice feel shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310958899.7A CN118121008A (en) | 2023-08-01 | 2023-08-01 | Novel ice shoe pad and ice leather shoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310958899.7A CN118121008A (en) | 2023-08-01 | 2023-08-01 | Novel ice shoe pad and ice leather shoes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118121008A true CN118121008A (en) | 2024-06-04 |
Family
ID=91229096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310958899.7A Pending CN118121008A (en) | 2023-08-01 | 2023-08-01 | Novel ice shoe pad and ice leather shoes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118121008A (en) |
-
2023
- 2023-08-01 CN CN202310958899.7A patent/CN118121008A/en active Pending
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