EP3429384B1 - Multi-layer insole containing activated carbon, method of its production and shoes provided with this insole - Google Patents
Multi-layer insole containing activated carbon, method of its production and shoes provided with this insole Download PDFInfo
- Publication number
- EP3429384B1 EP3429384B1 EP17720660.4A EP17720660A EP3429384B1 EP 3429384 B1 EP3429384 B1 EP 3429384B1 EP 17720660 A EP17720660 A EP 17720660A EP 3429384 B1 EP3429384 B1 EP 3429384B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- insole
- active layer
- cork
- multilayer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 44
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 6
- 239000007799 cork Substances 0.000 claims description 42
- 239000007788 liquid Substances 0.000 claims description 31
- 210000002683 foot Anatomy 0.000 claims description 26
- 230000009286 beneficial effect Effects 0.000 claims description 18
- 230000004071 biological effect Effects 0.000 claims description 18
- 241000282412 Homo Species 0.000 claims description 17
- 238000013016 damping Methods 0.000 claims description 15
- 239000011230 binding agent Substances 0.000 claims description 14
- 210000003371 toe Anatomy 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 230000002745 absorbent Effects 0.000 claims description 10
- 239000002250 absorbent Substances 0.000 claims description 10
- 210000001255 hallux Anatomy 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 235000008216 herbs Nutrition 0.000 claims description 5
- 240000002234 Allium sativum Species 0.000 claims description 4
- 240000001260 Tropaeolum majus Species 0.000 claims description 4
- 235000004424 Tropaeolum majus Nutrition 0.000 claims description 4
- 244000273928 Zingiber officinale Species 0.000 claims description 4
- 235000006886 Zingiber officinale Nutrition 0.000 claims description 4
- 235000004611 garlic Nutrition 0.000 claims description 4
- 235000008397 ginger Nutrition 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 3
- 235000006708 antioxidants Nutrition 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 235000010755 mineral Nutrition 0.000 claims description 3
- 239000011573 trace mineral Substances 0.000 claims description 3
- 235000013619 trace mineral Nutrition 0.000 claims description 3
- 235000013343 vitamin Nutrition 0.000 claims description 3
- 239000011782 vitamin Substances 0.000 claims description 3
- 229940088594 vitamin Drugs 0.000 claims description 3
- 229930003231 vitamin Natural products 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 176
- 239000004753 textile Substances 0.000 description 9
- 239000011241 protective layer Substances 0.000 description 8
- 229920000742 Cotton Polymers 0.000 description 6
- 230000000843 anti-fungal effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- 230000000845 anti-microbial effect Effects 0.000 description 4
- 239000010985 leather Substances 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 244000290333 Vanilla fragrans Species 0.000 description 2
- 235000009499 Vanilla fragrans Nutrition 0.000 description 2
- 235000012036 Vanilla tahitensis Nutrition 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 229940121375 antifungal agent Drugs 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000002649 leather substitute Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004821 Contact adhesive Substances 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229940098465 tincture Drugs 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
- A43B17/006—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material multilayered
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B1/00—Footwear characterised by the material
- A43B1/0045—Footwear characterised by the material made at least partially of deodorant means
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B1/00—Footwear characterised by the material
- A43B1/02—Footwear characterised by the material made of fibres or fabrics made therefrom
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
- A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
Definitions
- the invention relates to a multilayer insole with activated carbon, the insole comprising a supporting layer, an active layer containing activated carbon and an upper layer.
- the invention also relates to a method of producing this insole.
- the invention further relates to footwear provided with the insole according to the invention, whereby the upper of the footwear comprises an outer layer below which a semipermeable membrane is arranged.
- insoles for footwear are known.
- One of them is an insole which is intended to improve comfort of walking since it contains a flexible layer, whose shape adapts to the shape of the lower part of the human sole when used.
- the disadvantage of this insole is mainly the fact that if the user has a foot which is improperly shaped or if he treads on his foot in an improper manner, the insole shapes itself in such a manner that this defect becomes even worse during wearing.
- Another type includes an insole which is designed to improve primarily the quality of walking.
- This insole has a relief formed by protrusions and recesses on its upper side. The upper side is in contact with the user's sole and should correspond to the shape of the lower part of his sole.
- the disadvantage of this insole is the fact that it is shaped according to a unified human foot, disregarding individual foot shape, particularly the shape and inclination of toes, and so during usage toes are forced to adjust to the shape of the insole, which substantially decreases the user's comfort when walking and could discourage him from using this insole.
- Both these types of insoles are sometimes provided with a layer made of antimicrobial or odour-absorbing material based, for example, on impregnation or on a layer containing activated carbon.
- a layer made of antimicrobial or odour-absorbing material based, for example, on impregnation or on a layer containing activated carbon.
- the layer of activated carbon is exposed to abrasion and is therefore of little durability.
- CN 103504709 A discloses an insole comprising in direction from upper to bottom side a pure cotton surface layer, an activated carbon middle layer and a PU bottom layer.
- the disadvantage of the surface layer of cotton is particularly the moisture-retaining ability of cotton or ability to hold liquid moisture, which the surface layer of cotton does not allow to penetrate to the layer with activated carbon. Consequently, the insole in the footwear is constantly humid during use and even after drying it up odours are not completely absorbed, as part of them remains in the surface cotton layer.
- a similar arrangement of the insole is disclosed also in CN 200966380 Y .
- the insole in an arrangement with a surface layer of leather has also the same properties, whether it is natural leather, as is described, for example, in EP 2308335 A1 , or artificial leather, because the layer of leather has a relatively great thickness and liquid moisture is retained within the material.
- CN 104665097 discloses an insole comprising an upper permeable cotton textile layer, and a textile layer with natural vanilla woven in it and a felt layer with activated carbon.
- Vanilla gives provides aroma and has an important deodorization effect.
- the disadvantage is lowfirmness and shape stability of the insole and particularly the fact that moisture is retained in the textile layers, as mentioned above.
- the goal of the invention is to propose an insole which would be properly shaped to provide a high level of walking comfort and which would not contribute to improper tread or shaping of the foot and would eliminate the disadvantages of the background art, especially by absorbing odours and liquid moisture.
- the aim of the invention is also to ensure that moisture is not retained in the textile layers and, at the same time, to ensure that the insole has sufficient antimicrobial and anti-fungal properties with long-term effectiveness.
- a multilayer insole with activated carbon according to the appended claim 1, whose principle consists in that above a supporting layer of the insole, which is formed by pressing a mixture of cork granulate and a binder, is arranged at least one damping layer, on whose upper side is arranged a intermediate cork layer to form a thermal bridge between the foot sole of the user and the bottom layers of the insole.
- an active layer which is on its upper side covered by an upper layer, which is permeable to both liquid and vapour moisture, whereby all the layers of the insole are joined together and the insole has spatial shaping, which on its upper side corresponds to the shape of the impression of the lower part of the human foot with planar toe section, with a recess for the big toe joint and a recess or depression for the heel, and which on the bottom part of the insole corresponds to the shape of the lower part of the human foot.
- the supporting cork layer ensures shape stability and low weight of the insole, whereby the insole provides flexible support to the entire foot of the user.
- the cork ensures that the other layers of the insole are thermally insulated from the shoe sole, thereby reducing condensation of liquid moisture from vapour which is produced in the footwear above the insole.
- the non-absorbent upper layer of the insole does not collect moisture in the liquid form, thus adding to the comfort of the wearer.
- the binder also serves to connect these cork layers to the adjacent layers, and therefore it is not necessary to use any other adhesives for connecting the layers, which applies to the embodiment with the active layer arranged on the upper side of the intermediate cork layer.
- a second damping layer is arranged on the upper side of the intermediate cork layer and the active layer is arranged above it, it is necessary to use glue to join the damping layer and the active layer.
- the upper layer can overlap the circumference of the insole and is folded around this circumference, its folded part being attached to the bottom side of the supporting layer of the insole.
- This folded part may be secured by a protective layer glued to the bottom side of the supporting layer of the insole, whereby the protective layer also protects the cork material of the supporting layer from crumbling, breaking and abrasion.
- the upper layer could be perforated to ensure good passage of both liquid and vapour moisture.
- the upper layer is only permeable to liquid moisture in the direction inwards the active layer.
- the insole comprises a means of beneficial biological effect on humans in a solid or liquid form, which is arranged in the active layer and/or is arranged on the active layer and/or above the active layer.
- this means may be arranged below the upper layer or on the upper layer and covered by a non-absorbent auxiliary cover layer, or it may be arranged in a casing arranged on the upper layer of the insole.
- the means with a beneficial biological effect on humans may be vitamins, minerals and trace elements, antioxidants, herbs in a solid or liquid form, such as garlic, ginger, nasturtium, etc.
- the principle of the method of production of the insole according to the invention consists in that into a mould whose bottom is formed in a shape which corresponds the shape of the lower part of the human foot having a protrusion in the area of the big toe joint, a protrusion in the heel area and planar toe section is inserted an active layer containing activated carbon and after that it is covered by a mixture of crushed cork and a binder in an amount corresponding to the required thickness of the intermediate cork layer, on which is arranged a damping layer, to which is applied a mixture of crushed cork and a binder in an amount corresponding to the required thickness of the supporting layer, whereupon the filled mould, having been covered by a cover part, whose working surface is shaped as an impression of the lower part of the human foot with planar toe section, with a recess in the area of the big toe joint and with a recess or depression in the heel area, is cold-pressed to obtain the resulting spatial shape of the insole, whereupon after the
- FIG. 1a shows an insole with an upper layer arranged only on the top
- Fig. 1b an insole having an upper layer encircling the sides of the insole and fixed to the bottom side of the supporting layer of the insole
- Fig.1c the insole according to Fig. 1b with a supporting layer covered from the bottom side by a protective layer
- Fig. 2 a simplified embodiment of the insole
- Fig. 3 insole with two damping layers
- Fig. 4 a shoe provided with the insole
- Fig. 5 an insole with an auxiliary cover layer
- Fig. 6a a top view of the casing for the means with a beneficial biological effect on humans
- Fig. 6b a cross-section of the casing according to Fig. 6a .
- the insole for footwear according to the invention is spatially shaped, whereby it is from its upper side provided with shaping corresponding to the form of the impression of the lower part of the human foot with planar toe section, with a recess for the big toe joint and a heel recess, and on its bottom side is provided with shaping corresponding to the shape of the lower part of the human foot with planar toe section according to CZ patent 298894 , or a recess or depression is formed in its heel area from the upper side according to CZ PV 2009-580 , in which a heel recess or depression is formed, which is thus the lowest part on the upper side of the insole.
- the insole comprises a supporting layer 1 which is made by cold pressing from a mixture of crushed cork and a suitable binder, such as polyurethane.
- the supporting layer 1 supports the entire insole and provides sufficient rigidity and flexibility to the insole, as well as low weight, shape stability and good thermal insulation properties.
- the bottom side of the supporting layer 1 is intended for the contact with the shoe sole.
- a damping layer 2 made of a foam material, which softens the contact of the user's foot sole with the insole and partially absorbs shocks created during walking, which results in further increase in the comfort of using of the insole and at the same time decreases the mechanical stress of other layers of the insole. Due to its thermal insulation properties, the supporting layer 1 forms a thermal bridge between the shoe sole and the upper part of the insole, thus preventing the heat transfer, especially the cold transfer from the shoe sole to the upper part of the insole and the human foot.
- a intermediate cork layer 3 On the upper side of the damping layer 2 is arranged a intermediate cork layer 3 , which is in the exemplary embodiment made by cold pressing from a mixture of crushed cork and a suitable binder, such as polyurethane.
- the intermediate cork layer 3 may be made by cutting from cork sheets and gluing to the adjacent layers. Due to its thermal insulation properties, the intermediate cork layer 3 forms a thermal bridge between the user's foot and the bottom layers of the insole and thus prevents heat and moisture transfer from the wearer's foot to the bottom layers of the insole, in which the moisture would condense and would cause moistening of the footwear from inside.
- an active layer 4 which contains activated carbon in any suitable form.
- the active layer 3 is formed by non-woven fabric or felt, between whose fibres is arranged activated carbon, whereby it is advantageous if the activated carbon is bound to the fibres or between them to reduce risk of loosening from the active layer 4 .
- non-woven fabric containing activated carbon made by the company Fibrex Nonwovens, Denmark, with trade name Carbotex was used as the active layer.
- the active layer 4 ensures absorption of odours and moisture and, in addition, it provides the insole antimicrobial and antifungal properties. Therefore, the insole is unobjectionable in terms of hygiene and has antimicrobial and antifungal properties.
- the active layer 4 is from the upper side covered by a non-absorbent upper layer 5 , which is intended for the contact with the user's foot and is made of foil, textile or non-woven textile with antifungal and/or antibacterial and/or antistatic treatment.
- the upper layer 5 is permeable to both liquid and vapour moisture, whereby in a specific embodiment this permeability is ensured by fine perforation.
- the upper layer 5 and the active layer 4 are joined together by means of a thermal adhesive.
- the upper layer 5 is only permeable to liquid moisture in the direction inwards the insole and prevents liquid moisture from passing back to the surface of the insole.
- the upper layer 5 is larger, its edges being folded around the circumference of the insole and fixed to the lower side of the supporting layer 1 by gluing or using another suitable method.
- the insole according to Fig. 1b is used, but the bottom layer of the supporting layer 1 is covered by the protective layer 6 , preventing cork from crumbling and/or breaking.
- the material of this layer 6 may be the same as that of the upper layer 5 , but it does not have to be perforated, or it is possible to use another suitable material which would provide sufficient protection to the cork of the supporting layer 1.
- a damping layer 2 of a corresponding size is arranged on the mixture of crushed cork and a binder of the intermediate cork layer.
- a mixture of crushed cork and a binder in an amount corresponding to the required thickness of the supporting layer 1 is poured over the damping layer 2 and is spread evenly and the filled mould is covered by the cover part of the mould, whose surface abutting the insole being produced is shaped as an impression of the lower part of the human foot sole with planar toe section, with a recess in the area of the big toe joint and a recess or depression in the heel area, which is thus a negative of the shape of the lower part of the insole.
- the two part mould is inserted into a press, where the mixture of crushed cork and the binder stiffens under pressure, whereby it is at the same time connected to the adjacent layers of the insole and is shaped to acquire the resulting shape of the insole.
- an upper layer 5 which is provided on its contact surface with a hot melt adhesive, the edges of the upper layer are folded around the edges of the insole and the upper layer 5 is inserted into the respective mould in a thermal press and is fixed to the active layer 4 , as well as to the bottom of the supporting layer 1 around the edge of the insole.
- a protective layer 6 is arranged on the bottom side of the supporting layer 1 and is hot glued. Both the upper layer 5 and the protective layer conform to the shape of the insole on the respective surface.
- the upper layer 5 is fixed only to the bottom side of the supporting layer 1 after folding the upper layer 5 around the edges of the insole.
- FIG. 2 A simplified embodiment of the multilayer insole according to the invention is shown in Fig. 2 , where the intermediate cork layer is omitted and the insole comprises a supporting layer 1 , a damping layer 2 , an active layer 4 and an upper layer 5 arranged on top of each other.
- the upper layer 5 may be arranged in any of the methods described in the embodiments according to Figs. 1a to 1c , whereby the arrangement according to Fig. 1c also comprises a protective layer covering the bottom side of the supporting layer 1 .
- the insole according to Fig. 3 serves to promote the effect of softening the impact during walking.
- this insole has a second damping layer 2 inserted between the active layer 4 and the intermediate cork layer 3 .
- the means 7 with a beneficial biological effect on humans is inserted in a suitable solid form, for example as a powder, granular material, fractions or in a liquid form, such as a tincture, a solution or an extract, from which, however, the liquid portion must be generally evaporated before using the insole.
- the means 7 with a beneficial biological effect on humans is selected from a group consisting of vitamins, minerals and trace elements, antioxidants, herbs, such as garlic, ginger, nasturtium, in a solid or liquid form.
- the effect of these means 7 with a beneficial biological effect on the user of the insole through his foot sole has been experimentally proven, whereby optimal results are obtained during walking.
- First specific experiments were conducted with herbs, garlic, ginger and nasturtium, whereby the herbs were used both ground and in a liquid extract form.
- the means 7 with a beneficial biological effect on humans in a liquid form can also be added into the insole through the upper layer 5 without removing it, for example, by dripping or by roller coating, and can be renewed over a required period at specific intervals.
- the means 7 will be incorporated into suitable textile layers containing fibres, microfibres and/or nanofibres, whereby the means 7 with a beneficial biological effect on humans may be also drugs.
- the means 7 can be inserted above the upper layer 5 and subsequently covered by an auxiliary cover layer 51 which is permeable to both liquid and vapour moisture and which is provided on its bottom surface with a contact adhesive, as is shown in Fig. 5 .
- auxiliary cover layer 51 which is permeable to both liquid and vapour moisture and which is provided on its bottom surface with a contact adhesive, as is shown in Fig. 5 .
- this layer overlaps the edges of the insole and can be fixed to the bottom surface of the supporting layer 1 after it is folded around the edges of the insole.
- auxiliary cover layer 51 can be removed, the means 7 below can be replaced by another means and the auxiliary cover layer glued again, or the original layer can be removed, the means 7 replaced and a new auxiliary cover layer 51 can be glued to the rest of the insole. Also, this solution can be used in a combination with the above-described arrangement of the means 7 below the upper layer 5 during the production of the insole.
- the means can be accommodated in a special closeable or closed casing 50 formed by two layers 501 and 502 permeable to both liquid and vapour moisture, as is shown in Figs. 6a, 6b .
- the casing 50 can be attached to the upper surface of the upper layer 5 of the insole.
- it can be glued to the upper surface of the upper layer 5 of the insole ( Fig. 6a ), or to the bottom surface of the supporting layer 1 of the insole by means of a circumferential welt 500 , which is folded around the edges of the insole ( Fig 6b ).
- the effects of the layered insole according to the invention can be further enhanced by using it in a shoe whose upper 11 comprises an outer layer 12 made from known materials, such as natural leather, artificial leather or textile, the outer layer 12 being perforated to increase its permeability to vapour.
- an outer layer 12 made from known materials, such as natural leather, artificial leather or textile
- the outer layer 12 being perforated to increase its permeability to vapour.
- a semipermeable mebrane 13 below the outer layer 12 is arranged a semipermeable mebrane 13 , allowing the passage of vapour outwards.
- the active layer 4 containing activated carbon being the same in a preferred embodiment as in the above-described insole.
- an inner non-absorbent upper layer 5 which is permeable to both liquid and vapour moisture, is intended for the contact with the user's foot and is formed by foil, textile or non-woven fabric, preferably with antifungal and/or antibacterial and/or antistatic finishing treatment, whereby permeability to both liquid and vapour moisture is in the particular embodiment ensured by fine perforation, as is the case with the upper layer of the insole.
- the inner upper layer 5 the active layer 4 and the semipermeable mebrane 13 are sewn together and subsequently the outer layer 12 is sewn to them.
- the invention is applicable in the footwear industry.
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Description
- The invention relates to a multilayer insole with activated carbon, the insole comprising a supporting layer, an active layer containing activated carbon and an upper layer.
- The invention also relates to a method of producing this insole.
- The invention further relates to footwear provided with the insole according to the invention, whereby the upper of the footwear comprises an outer layer below which a semipermeable membrane is arranged.
- At present, various types of single-purpose insoles for footwear are known. One of them is an insole which is intended to improve comfort of walking since it contains a flexible layer, whose shape adapts to the shape of the lower part of the human sole when used. The disadvantage of this insole is mainly the fact that if the user has a foot which is improperly shaped or if he treads on his foot in an improper manner, the insole shapes itself in such a manner that this defect becomes even worse during wearing.
- Another type includes an insole which is designed to improve primarily the quality of walking. This insole has a relief formed by protrusions and recesses on its upper side. The upper side is in contact with the user's sole and should correspond to the shape of the lower part of his sole. The disadvantage of this insole is the fact that it is shaped according to a unified human foot, disregarding individual foot shape, particularly the shape and inclination of toes, and so during usage toes are forced to adjust to the shape of the insole, which substantially decreases the user's comfort when walking and could discourage him from using this insole.
- Both these types of insoles are sometimes provided with a layer made of antimicrobial or odour-absorbing material based, for example, on impregnation or on a layer containing activated carbon. However, when applying impregnation with activated carbon to the surface layer of the insole, the layer of activated carbon is exposed to abrasion and is therefore of little durability.
-
CN 103504709 A discloses an insole comprising in direction from upper to bottom side a pure cotton surface layer, an activated carbon middle layer and a PU bottom layer. The disadvantage of the surface layer of cotton is particularly the moisture-retaining ability of cotton or ability to hold liquid moisture, which the surface layer of cotton does not allow to penetrate to the layer with activated carbon. Consequently, the insole in the footwear is constantly humid during use and even after drying it up odours are not completely absorbed, as part of them remains in the surface cotton layer. A similar arrangement of the insole is disclosed also inCN 200966380 Y . - The insole in an arrangement with a surface layer of leather has also the same properties, whether it is natural leather, as is described, for example, in
EP 2308335 A1 , or artificial leather, because the layer of leather has a relatively great thickness and liquid moisture is retained within the material. - Keeping feet dry is the aim of
JP2007289605A -
CN 104665097 discloses an insole comprising an upper permeable cotton textile layer, and a textile layer with natural vanilla woven in it and a felt layer with activated carbon. Vanilla gives provides aroma and has an important deodorization effect. The disadvantage, on the other hand, is lowfirmness and shape stability of the insole and particularly the fact that moisture is retained in the textile layers, as mentioned above. - The goal of the invention is to propose an insole which would be properly shaped to provide a high level of walking comfort and which would not contribute to improper tread or shaping of the foot and would eliminate the disadvantages of the background art, especially by absorbing odours and liquid moisture. The aim of the invention is also to ensure that moisture is not retained in the textile layers and, at the same time, to ensure that the insole has sufficient antimicrobial and anti-fungal properties with long-term effectiveness.
- The goal of the invention is achieved by a multilayer insole with activated carbon according to the appended
claim 1, whose principle consists in that above a supporting layer of the insole, which is formed by pressing a mixture of cork granulate and a binder, is arranged at least one damping layer, on whose upper side is arranged a intermediate cork layer to form a thermal bridge between the foot sole of the user and the bottom layers of the insole. Above the intermediate cork layer is arranged an active layer, which is on its upper side covered by an upper layer, which is permeable to both liquid and vapour moisture, whereby all the layers of the insole are joined together and the insole has spatial shaping, which on its upper side corresponds to the shape of the impression of the lower part of the human foot with planar toe section, with a recess for the big toe joint and a recess or depression for the heel, and which on the bottom part of the insole corresponds to the shape of the lower part of the human foot. The supporting cork layer ensures shape stability and low weight of the insole, whereby the insole provides flexible support to the entire foot of the user. In addition, the cork ensures that the other layers of the insole are thermally insulated from the shoe sole, thereby reducing condensation of liquid moisture from vapour which is produced in the footwear above the insole. The non-absorbent upper layer of the insole does not collect moisture in the liquid form, thus adding to the comfort of the wearer. - If the supporting cork layer and the intermediate cork layer are produced during the production of the insole from cork granulate and a binder, the binder also serves to connect these cork layers to the adjacent layers, and therefore it is not necessary to use any other adhesives for connecting the layers, which applies to the embodiment with the active layer arranged on the upper side of the intermediate cork layer.
- If a second damping layer is arranged on the upper side of the intermediate cork layer and the active layer is arranged above it, it is necessary to use glue to join the damping layer and the active layer.
- For easy and firm fixation on the insole, the upper layer can overlap the circumference of the insole and is folded around this circumference, its folded part being attached to the bottom side of the supporting layer of the insole.
- This folded part may be secured by a protective layer glued to the bottom side of the supporting layer of the insole, whereby the protective layer also protects the cork material of the supporting layer from crumbling, breaking and abrasion.
- The upper layer could be perforated to ensure good passage of both liquid and vapour moisture.
- In another embodiment, the upper layer is only permeable to liquid moisture in the direction inwards the active layer.
- To further improve the utility properties, the insole comprises a means of beneficial biological effect on humans in a solid or liquid form, which is arranged in the active layer and/or is arranged on the active layer and/or above the active layer.
- Also, this means may be arranged below the upper layer or on the upper layer and covered by a non-absorbent auxiliary cover layer, or it may be arranged in a casing arranged on the upper layer of the insole.
- The means with a beneficial biological effect on humans may be vitamins, minerals and trace elements, antioxidants, herbs in a solid or liquid form, such as garlic, ginger, nasturtium, etc.
- The principle of the method of production of the insole according to the invention consists in that into a mould whose bottom is formed in a shape which corresponds the shape of the lower part of the human foot having a protrusion in the area of the big toe joint, a protrusion in the heel area and planar toe section is inserted an active layer containing activated carbon and after that it is covered by a mixture of crushed cork and a binder in an amount corresponding to the required thickness of the intermediate cork layer, on which is arranged a damping layer, to which is applied a mixture of crushed cork and a binder in an amount corresponding to the required thickness of the supporting layer, whereupon the filled mould, having been covered by a cover part, whose working surface is shaped as an impression of the lower part of the human foot with planar toe section, with a recess in the area of the big toe joint and with a recess or depression in the heel area, is cold-pressed to obtain the resulting spatial shape of the insole, whereupon after the insole is removed from the mould, an upper layer is applied to the active layer, whereby the upper layer conforms to the spatial shape of the upper surface of the insole.
- Further increase in the effects of the insole according to the invention is achieved by using it in footwear whose upper comprises an outer layer below which is arranged a semipermeable mebrane, whereby the principle of the footwear consists in that below the semipermeable mebrane is arranged an active layer containing activated carbon, which is from the inner side covered by a non-absorbent inner upper layer permeable to both liquid and vapour moisture.
- Exemplary embodiments of the insole according to the invention are schematically represented in the enclosed drawings, where
Fig. 1a shows an insole with an upper layer arranged only on the top,Fig. 1b an insole having an upper layer encircling the sides of the insole and fixed to the bottom side of the supporting layer of the insole,Fig.1c the insole according toFig. 1b with a supporting layer covered from the bottom side by a protective layer,Fig. 2 a simplified embodiment of the insole,Fig. 3 insole with two damping layersFig. 4 a shoe provided with the insole,Fig. 5 an insole with an auxiliary cover layer,Fig. 6a a top view of the casing for the means with a beneficial biological effect on humans, andFig. 6b a cross-section of the casing according toFig. 6a . - The insole for footwear according to the invention is spatially shaped, whereby it is from its upper side provided with shaping corresponding to the form of the impression of the lower part of the human foot with planar toe section, with a recess for the big toe joint and a heel recess, and on its bottom side is provided with shaping corresponding to the shape of the lower part of the human foot with planar toe section according to
CZ patent 298894 CZ PV 2009-580 - In the basic exemplary embodiment, shown in
Figs. 1a to 1c , the insole comprises a supportinglayer 1 which is made by cold pressing from a mixture of crushed cork and a suitable binder, such as polyurethane. The supportinglayer 1 supports the entire insole and provides sufficient rigidity and flexibility to the insole, as well as low weight, shape stability and good thermal insulation properties. The bottom side of the supportinglayer 1 is intended for the contact with the shoe sole. - On the supporting
layer 1 is arranged adamping layer 2 made of a foam material, which softens the contact of the user's foot sole with the insole and partially absorbs shocks created during walking, which results in further increase in the comfort of using of the insole and at the same time decreases the mechanical stress of other layers of the insole. Due to its thermal insulation properties, the supportinglayer 1 forms a thermal bridge between the shoe sole and the upper part of the insole, thus preventing the heat transfer, especially the cold transfer from the shoe sole to the upper part of the insole and the human foot. - On the upper side of the
damping layer 2 is arranged aintermediate cork layer 3 , which is in the exemplary embodiment made by cold pressing from a mixture of crushed cork and a suitable binder, such as polyurethane. Theintermediate cork layer 3 may be made by cutting from cork sheets and gluing to the adjacent layers. Due to its thermal insulation properties, theintermediate cork layer 3 forms a thermal bridge between the user's foot and the bottom layers of the insole and thus prevents heat and moisture transfer from the wearer's foot to the bottom layers of the insole, in which the moisture would condense and would cause moistening of the footwear from inside. - On the upper side of the
intermediate cork layer 3 is arranged anactive layer 4, which contains activated carbon in any suitable form. In a preferred embodiment, theactive layer 3 is formed by non-woven fabric or felt, between whose fibres is arranged activated carbon, whereby it is advantageous if the activated carbon is bound to the fibres or between them to reduce risk of loosening from theactive layer 4. In a specific example of embodiment, non-woven fabric containing activated carbon made by the company Fibrex Nonwovens, Denmark, with trade name Carbotex was used as the active layer. Owing to the extensive surface of activated carbon (400 to 1500 m2/g), theactive layer 4 ensures absorption of odours and moisture and, in addition, it provides the insole antimicrobial and antifungal properties. Therefore, the insole is unobjectionable in terms of hygiene and has antimicrobial and antifungal properties. - The
active layer 4 is from the upper side covered by a non-absorbentupper layer 5, which is intended for the contact with the user's foot and is made of foil, textile or non-woven textile with antifungal and/or antibacterial and/or antistatic treatment. Theupper layer 5 is permeable to both liquid and vapour moisture, whereby in a specific embodiment this permeability is ensured by fine perforation. Theupper layer 5 and theactive layer 4 are joined together by means of a thermal adhesive. In a preferred embodiment, theupper layer 5 is only permeable to liquid moisture in the direction inwards the insole and prevents liquid moisture from passing back to the surface of the insole. - In an example of embodiment according to
Fig. 1b , theupper layer 5 is larger, its edges being folded around the circumference of the insole and fixed to the lower side of the supportinglayer 1 by gluing or using another suitable method. - In the example of embodiment according to
Fig. 1c , the insole according toFig. 1b is used, but the bottom layer of the supportinglayer 1 is covered by theprotective layer 6, preventing cork from crumbling and/or breaking. The material of thislayer 6 may be the same as that of theupper layer 5, but it does not have to be perforated, or it is possible to use another suitable material which would provide sufficient protection to the cork of the supportinglayer 1. - During production of the insole, into a mould of a required size, whose bottom is shaped as the lower part of the human foot with planar toe section, with a protrusion in the area of the big toe joint and a protrusion or elevation in the heel area, which is a negative of the shape of the upper part of the insole, is first of all inserted an
active layer 4 of a corresponding size. Then a mixture of crushed cork and a suitable binder in an amount corresponding to the required thickness of theintermediate cork layer 3 is poured over the mould and is spread evenly on the entire area of theactive layer 4. Measuring out the required amount is performed either by volume or by weighing. Subsequently, a dampinglayer 2 of a corresponding size is arranged on the mixture of crushed cork and a binder of the intermediate cork layer. A mixture of crushed cork and a binder in an amount corresponding to the required thickness of the supportinglayer 1 is poured over the dampinglayer 2 and is spread evenly and the filled mould is covered by the cover part of the mould, whose surface abutting the insole being produced is shaped as an impression of the lower part of the human foot sole with planar toe section, with a recess in the area of the big toe joint and a recess or depression in the heel area, which is thus a negative of the shape of the lower part of the insole. The two part mould is inserted into a press, where the mixture of crushed cork and the binder stiffens under pressure, whereby it is at the same time connected to the adjacent layers of the insole and is shaped to acquire the resulting shape of the insole. - After removing the insole from the mould, on the upper surface of the
active layer 4 is arranged anupper layer 5, which is provided on its contact surface with a hot melt adhesive, the edges of the upper layer are folded around the edges of the insole and theupper layer 5 is inserted into the respective mould in a thermal press and is fixed to theactive layer 4, as well as to the bottom of the supportinglayer 1 around the edge of the insole. Subsequently, aprotective layer 6 is arranged on the bottom side of the supportinglayer 1 and is hot glued. Both theupper layer 5 and the protective layer conform to the shape of the insole on the respective surface. In an alternative embodiment, theupper layer 5 is fixed only to the bottom side of the supportinglayer 1 after folding theupper layer 5 around the edges of the insole. - In cases when the
upper layer 5 has the same size as theactive layer 4, or as the entire insole it is advisable after it is glued to theactive layer 4 to promote the coherence of the individual layers of the insole by sewing, preferably using Strobel stitching. - A simplified embodiment of the multilayer insole according to the invention is shown in
Fig. 2 , where the intermediate cork layer is omitted and the insole comprises a supportinglayer 1 , a dampinglayer 2 , anactive layer 4 and anupper layer 5 arranged on top of each other. Theupper layer 5 may be arranged in any of the methods described in the embodiments according toFigs. 1a to 1c , whereby the arrangement according toFig. 1c also comprises a protective layer covering the bottom side of the supportinglayer 1. - The insole according to
Fig. 3 serves to promote the effect of softening the impact during walking. In comparison to the embodiment according toFigs. 1a and 1c , this insole has a second dampinglayer 2 inserted between theactive layer 4 and theintermediate cork layer 3. - Further improvement of utility properties of the insole is achieved during the production of the insole by inserting the
means 7 with a beneficial biological effect on humans below theupper layer 5 of the insole, which means that the means is either incorporated into theactive layer 4, or arranged on theactive layer 4. Themeans 7 with a beneficial biological effect on humans is inserted in a suitable solid form, for example as a powder, granular material, fractions or in a liquid form, such as a tincture, a solution or an extract, from which, however, the liquid portion must be generally evaporated before using the insole. Themeans 7 with a beneficial biological effect on humans is selected from a group consisting of vitamins, minerals and trace elements, antioxidants, herbs, such as garlic, ginger, nasturtium, in a solid or liquid form. The effect of thesemeans 7 with a beneficial biological effect on the user of the insole through his foot sole has been experimentally proven, whereby optimal results are obtained during walking. First specific experiments were conducted with herbs, garlic, ginger and nasturtium, whereby the herbs were used both ground and in a liquid extract form. Themeans 7 with a beneficial biological effect on humans in a liquid form can also be added into the insole through theupper layer 5 without removing it, for example, by dripping or by roller coating, and can be renewed over a required period at specific intervals. In the future it is conceivable that themeans 7 will be incorporated into suitable textile layers containing fibres, microfibres and/or nanofibres, whereby themeans 7 with a beneficial biological effect on humans may be also drugs. - Placing the
means 7 with a beneficial biological effect on humans below theupper layer 5 in a solid form requires the replacement of the entire insole when need arises to replace themeans 7. In order to simplify the replacement of themeans 7 with a beneficial biological effect on humans, themeans 7 can be inserted above theupper layer 5 and subsequently covered by anauxiliary cover layer 51 which is permeable to both liquid and vapour moisture and which is provided on its bottom surface with a contact adhesive, as is shown inFig. 5 . For the fixation of theauxiliary cover layer 51 it is advantageous if this layer overlaps the edges of the insole and can be fixed to the bottom surface of the supportinglayer 1 after it is folded around the edges of the insole. Theauxiliary cover layer 51 can be removed, themeans 7 below can be replaced by another means and the auxiliary cover layer glued again, or the original layer can be removed, themeans 7 replaced and a newauxiliary cover layer 51 can be glued to the rest of the insole. Also, this solution can be used in a combination with the above-described arrangement of themeans 7 below theupper layer 5 during the production of the insole. - In addition, to allow replacement and/or combination of
means 7 with a beneficial biological effect on humans, the means can be accommodated in a special closeable orclosed casing 50 formed by twolayers Figs. 6a, 6b . Thecasing 50 can be attached to the upper surface of theupper layer 5 of the insole. For example, it can be glued to the upper surface of theupper layer 5 of the insole (Fig. 6a ), or to the bottom surface of the supportinglayer 1 of the insole by means of acircumferential welt 500, which is folded around the edges of the insole (Fig 6b ). - The effects of the layered insole according to the invention can be further enhanced by using it in a shoe whose upper 11 comprises an
outer layer 12 made from known materials, such as natural leather, artificial leather or textile, theouter layer 12 being perforated to increase its permeability to vapour. Below theouter layer 12 is arranged asemipermeable mebrane 13, allowing the passage of vapour outwards. On the inner side of thesemipermeable mebrane 13 is arranged theactive layer 4 containing activated carbon, being the same in a preferred embodiment as in the above-described insole. From the inner side theactive layer 4 is covered by an inner non-absorbentupper layer 5, which is permeable to both liquid and vapour moisture, is intended for the contact with the user's foot and is formed by foil, textile or non-woven fabric, preferably with antifungal and/or antibacterial and/or antistatic finishing treatment, whereby permeability to both liquid and vapour moisture is in the particular embodiment ensured by fine perforation, as is the case with the upper layer of the insole. In the first step of production the innerupper layer 5, theactive layer 4 and thesemipermeable mebrane 13 are sewn together and subsequently theouter layer 12 is sewn to them. - The invention is applicable in the footwear industry.
-
- 1
- supporting layer
- 2
- damping layer
- 3
- intermediate cork layer
- 4
- active layer with activated carbon
- 5
- upper layer
- 51
- auxiliary cover layer
- 50
- casing
- 501, 502
- layers of the casing
- 500
- circumferential welt of the casing
- 6
- protective layer
- 11
- upper of the footwear
- 12
- outer layer of the upper
- 13
- semipermeable mebrane
Claims (15)
- A multilayer insole with activated carbon which contains a supporting layer (1), an active layer (4) with activated carbon and an upper layer (5), wherein above the supporting layer (1), formed by pressing a mixture of cork granulate and a binder together, is arranged at least one damping layer (2), on whose upper side is arranged a intermediate cork layer (3) to form a thermal bridge between the user's foot and the bottom layers of the insole, above the intermediate cork layer (3) is arranged the active layer (4), which is on its upper side covered by the upper layer (5), which is permeable to vapour as well as to liquid moisture, whereby all the layers of the insole are joined together and the insole has spatial shape, which corresponds on upper side of the insole to the shape of the impression of the lower part of the human sole with planar toe section, with a recess for the big toe joint and a recess for the heel, and which corresponds on the bottom surface of the insole to the bottom part of the human sole with planar toe section.
- The multilayer insole according to Claim 1, characterized in that the active layer (4) is arranged on the upper side of the intermediate cork layer (3).
- The multilayer insole according to Claim 1, characterized in that on the upper side of the intermediate cork layer (3) is arranged a second damping layer (2) and on its upper side is arranged the active layer (4).
- The multilayer insole according to any of the preceding claims, characterized in that the upper layer (5) overlaps the circumference of the insole, is folded around this circumference and its folded part is fixed to the bottom side of the supporting layer (1).
- The multilayer insole according to Claim 4, characterized in that to the bottom side of the supporting layer (1) is fixed a protecting layer (6), which serves to secure the folded part of the upper layer (5) and to protect the cork material of the supporting layer (1).
- The multilayer insole according to any of the preceding claims, characterized in that the upper layer (5) is at least on the upper side of the insole perforated.
- The multilayer insole according to one of claims 1 to 5, characterized in that the upper layer (5) is permeable to liquid moisture only in the direction inwards the active layer (4).
- The multilayer insole according to any of the preceding claims, characterized in that it contains a means (7) with a beneficial biological effect on humans in liquid or solid form arranged in the active layer (4) and/or arranged on the active layer (4) and/or above the active layer (4).
- The multilayer insole according to Claim 8, characterized in that the means (7) with a beneficial biological effect on humans is arranged below the upper layer (5).
- The multilayer insole according to Claim 9, characterized in that between the upper layer (5) and the means (7) with a beneficial biological effect on humans is arranged a non-absorbent layer (52), which is permeable to both liquid and vapour moisture.
- The multilayer insole according to Claim 8 characterized in that the means (7) with a beneficial biological effect on humans is arranged on the upper layer (5) and covered by a non-absorbent auxiliary cover layer (51) which is permeable to both liquid and vapour moisture.
- The multilayer insole according to Claim 8, characterized in that the means (7) with a beneficial biological effect on humans is arranged in a case (50) arranged on the upper layer (5), whereby both the layers (501, 502) of the case (50) are non-absorbent and are permeable to both liquid and vapour moisture.
- The multilayer insole according to one of claims 8 to 12, characterized in that the means (7) with a beneficial biological effect on humans is selected from a group consisting of vitamins, minerals and trace elements, antioxidants, herbs, such as garlic, ginger, nasturtium, in a solid or liquid form.
- A method of production of the multilayer insole according to Claim 1 or 2, wherein an active layer (4) is inserted into a form, whose bottom is formed in a shape which corresponds to the shape of the lower part of the human foot with protrusion in the area of the big toe joint, protrusion in the heel area and with planar toe section, whereby onto the active layer (4) is applied a mixture of crushed cork and a binder in an amount corresponding to the required thickness of the intermediate cork layer (3), on which is arranged a damping layer (2), to which is arranged a mixture of crushed cork and a binder in an amount corresponding to the required thickness of the supporting layer (1) and the filled mould after being covered by its cover part, whose working surface is shaped as an impression of the lower part of the human foot with planar toe section, with a recess in the area of the big toe joint and with a recess or depression in the heel area, is cold-pressed to obtain the resulting spatial shape of the insole, whereby its individual layers are shaped and bonded together, wheraupon after removal from the mould the upper layer (5) is connected to the active layer (4), whereby the upper layer (5) conforms to the spatial shape of the upper surface of the insole.
- Footwear provided with the multilayer insole according to any of Claims 1 to 13, whose upper comprises an outer layer (12), below which a semipermeable membrane (13) is arranged, characterized in that below the semipermeable membrane (13) is arranged the active layer (4) containing activated carbon, which is on the inner side covered with an inner upper layer (5) permeable to both liquid and vapour moisture.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CZ2016-153A CZ2016153A3 (en) | 2016-03-16 | 2016-03-16 | A multi-layer insole of footwear with activated charcoal, the method of its manufacture and footwear equipped with this insole |
PCT/CZ2017/050014 WO2017157357A2 (en) | 2016-03-16 | 2017-03-15 | Multi-layer insole containing activated carbon, method of its production and shoes provided with this insole |
Publications (2)
Publication Number | Publication Date |
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EP3429384A2 EP3429384A2 (en) | 2019-01-23 |
EP3429384B1 true EP3429384B1 (en) | 2020-03-11 |
Family
ID=58664413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17720660.4A Active EP3429384B1 (en) | 2016-03-16 | 2017-03-15 | Multi-layer insole containing activated carbon, method of its production and shoes provided with this insole |
Country Status (4)
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EP (1) | EP3429384B1 (en) |
CN (1) | CN108135311A (en) |
CZ (1) | CZ2016153A3 (en) |
WO (1) | WO2017157357A2 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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JP7152741B2 (en) * | 2018-03-06 | 2022-10-13 | 株式会社村井 | thermal insole |
CN109846261A (en) * | 2018-12-29 | 2019-06-07 | 周礼君 | A kind of 3D mattress and its enhancing technique |
CZ309483B6 (en) * | 2022-03-02 | 2023-02-15 | Boty J HANÁK R, s.r.o | Multi-layer antibacterial shoe insole with activated carbon, producing it and footwear with this insole |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2449264A1 (en) * | 1974-10-16 | 1976-04-22 | Steigerwald Strahltech | PROCESS FOR PERFORATING ENERGY BEAMS, IN PARTICULAR ELECTRON BEAM PERFORATING, OF MULTI-LAYER SYNTHETIC LEATHER |
CN2478401Y (en) * | 2001-04-02 | 2002-02-27 | 曾展翅 | Deodorant sweat absorption shoe-pad |
ITMI20020626A1 (en) * | 2002-03-26 | 2003-09-26 | Nextec Srl | WATERPROOF FOOTWEAR AND PROCEDURE FOR ITS MANUFACTURE |
CN2742800Y (en) * | 2004-10-21 | 2005-11-30 | 郑元华 | Odour prevention shoes |
CN200966380Y (en) | 2006-04-07 | 2007-10-31 | 占慧君 | Insole for drying and deodorizing by using active carbon grains |
JP2007289605A (en) | 2006-04-21 | 2007-11-08 | Kenji Shirato | Insole of shoe |
CZ298894B6 (en) | 2006-05-10 | 2008-03-05 | Hanák@Josef | Inner sole |
CZ307552B6 (en) | 2009-08-31 | 2018-11-28 | Boty J HANÁK R, s.r.o. | A shoe insole |
DE202009014052U1 (en) | 2009-10-09 | 2009-12-24 | Salzenbrodt Gmbh & Co. Kg | insole |
CN103504709A (en) | 2012-06-30 | 2014-01-15 | 訾建平 | Deodorization height increasing insole |
CN203279921U (en) * | 2012-09-12 | 2013-11-13 | 欧帝兹鞋业有限公司 | Improved shoe pad |
US20150040427A1 (en) * | 2013-08-07 | 2015-02-12 | Kenneth B. Sanders | Sock covering |
CN104665097A (en) | 2013-11-27 | 2015-06-03 | 董昕悦 | Vanilla odor-resistant insole |
-
2016
- 2016-03-16 CZ CZ2016-153A patent/CZ2016153A3/en unknown
-
2017
- 2017-03-15 CN CN201780002504.9A patent/CN108135311A/en active Pending
- 2017-03-15 EP EP17720660.4A patent/EP3429384B1/en active Active
- 2017-03-15 WO PCT/CZ2017/050014 patent/WO2017157357A2/en active Application Filing
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EP3429384A2 (en) | 2019-01-23 |
WO2017157357A2 (en) | 2017-09-21 |
CZ2016153A3 (en) | 2017-11-01 |
CN108135311A (en) | 2018-06-08 |
WO2017157357A3 (en) | 2017-10-26 |
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