EP3462957B1 - Semelle intérieure - Google Patents

Semelle intérieure Download PDF

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Publication number
EP3462957B1
EP3462957B1 EP17725562.7A EP17725562A EP3462957B1 EP 3462957 B1 EP3462957 B1 EP 3462957B1 EP 17725562 A EP17725562 A EP 17725562A EP 3462957 B1 EP3462957 B1 EP 3462957B1
Authority
EP
European Patent Office
Prior art keywords
insole
odor
active substance
layer
foot
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
Application number
EP17725562.7A
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German (de)
English (en)
Other versions
EP3462957A1 (fr
Inventor
Rainer Mangold
Angela Roempp
Mareike Meyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CMC Consumer Medical Care GmbH
Original Assignee
CMC Consumer Medical Care GmbH
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Publication of EP3462957A1 publication Critical patent/EP3462957A1/fr
Application granted granted Critical
Publication of EP3462957B1 publication Critical patent/EP3462957B1/fr
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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
    • A43B17/10—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof
    • A43B17/102—Moisture absorbing socks; Moisture dissipating socks
    • A43B17/105—Disposable
    • 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
    • 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
    • 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
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/10—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof
    • 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
    • A43B17/10—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof
    • A43B17/102—Moisture absorbing socks; Moisture dissipating socks

Definitions

  • the invention relates to an insole for shoes, in particular as a disposable product with an at least two-layer base material comprising a foot-facing cover layer and an associated shoe-facing base layer and with a foot-facing foot surface and an opposite shoe-facing sole surface.
  • Insoles are widely known in the prior art. Among other things, they serve to improve the feeling of the foot or the cushioning in the shoe or to optimize the fit. In addition, special seasonal insoles are known, e.g. to absorb foot sweat in summer or to offer insulation against the cold of the ground in winter. It is generally a problem that the foot sweats in the shoe and, due to bacteria, there is an odor in shoes as well as in insoles. In order to prevent odor formation or the release of odor or at least improve the odor, a large number of variants are proposed in the prior art.
  • EP 0 272 690 A1 describes a three-layer insole that can be equipped with active ingredients both on the foot surface and on the sole surface.
  • multilayer insoles in which active ingredients are provided to improve odor, are for example in the EP 1 472 945 A2 as well as the EP 0 414 634 B1 described.
  • an insole which has a two-layer structure of base material and nonwoven cover having.
  • the basic material consists of one Staple fiber material with bicomponent fibers and absorbent fibers.
  • An active ingredient can be provided in the layers, in which case, for example, activated carbon particles are mentioned.
  • an insole as described above, in which the cover layer and the base layer consist of a staple fiber fleece and bicomponent fibers and absorbent cellulose-based fibers and / or hydrophilic synthetic fibers are contained in the cover layer and in the base layer and the insole comprises a combination has at least two different groups of active ingredients, the active ingredient groups being selected from the group of antimicrobial active ingredients, odor absorbents and odor masking substances, and at least one active ingredient group being assigned to both the top layer and the base layer.
  • the invention relates to an insole as specified in independent claim 1. Preferred embodiments of the invention are disclosed in the dependent claims.
  • the bicomponent fibers should preferably be provided with a weight proportion of at least 10% by weight, preferably at least 15% by weight, preferably at least 20% by weight, based on the total weight of the respective layer. More preferably, the bicomponent fibers have a weight proportion of the total weight of the respective layer of at most 60% by weight, preferably at most 55% by weight, more preferably at most 50% by weight, more preferably at most 45% by weight and more preferably at most 40 % By weight.
  • Bicomponent fiber as a synthetic fiber is made from two polymers with different physical or chemical properties.
  • the two polymers or the two components of a bicomponent fiber can be arranged differently within the fiber, such as, for example, next to one another, or in particular in a sheath-core arrangement.
  • the bicomponent fibers used for this invention preferably have a low-melting component and a higher-melting component, preferably in a sheath-core arrangement, the sheath then containing the low-melting component in the case of a sheath-core arrangement.
  • bicomponent fibers enables a more “point” -shaped or partial connection of the two layers, since a connection is only made via the lower melting component, in particular the sheath component.
  • the bicomponent fibers lead to glue point-like connections of the fibers within the layers and between the layers; In comparison to this, with a real gluing of the layers brought about by means of adhesive agents or with purely synthetic fibers that melt as a whole, a film-like intermediate layer is achieved.
  • the use of bicomponent fibers therefore also achieves a certain channel structure and thus improves the transfer of liquid from the top layer to the base layer, and thus also away from the foot into the insole.
  • the at least two groups of active ingredients are assigned to the top layer and the base layer. This is understood to mean both an arrangement in the layers and on the layers, and here in particular on the foot or sole surface.
  • the active ingredient groups can be distributed uniformly over the area and / or thickness of the base layer or the top layer, or areas can be provided which have less or no active ingredient at all compared to areas which contain more active ingredient or at all.
  • An arrangement on one of the layers is also understood to mean an arrangement in a coating.
  • an improved hygienic insole can be provided.
  • polyesters (PES), polyolefins, in particular PP, PE, and / or polyamides or combinations thereof are conceivable. It is particularly preferred to use polyester-based bicomponent fibers for the insole.
  • the polyester bicomponent fibers have a low-melting copolyester component and a higher one melting component made of polyester.
  • the polyester bicomponent fibers have a core made of polyester (PES) and a sheath made of copolyester.
  • the identical bicomponent fibers are particularly preferably used in the top layer and / or in the base layer.
  • the hydrophilic synthetic fibers provided in the nonwoven composition of the base layer and / or cover layer in addition to the bicomponent fibers preferably all have a higher melting temperature than the low-melting component of the bicomponent fibers. Because the melting point of the hydrophilic synthetic fibers and optionally further fibers provided in the cover layer and / or base layer is higher than the melting point of the at least one component of the bicomponent fibers, these hydrophilic synthetic fibers themselves are not melted.
  • the absorbent cellulosic fibers have no melting point anyway. With this fiber finish, the layers, in particular the top layer facing the foot, can create a textile feel and a dry microclimate.
  • fusion bonds can be formed between the fibers of the cover layer and the base layer, which connect the layers to one another, and also fusion bonds within of the individual layers are created, and thus also advantageously make a contribution to the partial consolidation of the layers, in particular the top layer, which is therefore beneficial for their abrasion resistance.
  • a high level of consolidation due to the large number of bicomponent fibers used The point-like connection points obtained reduce or even prevent the detachment of individual fibers from the fiber composite and are shown in good abrasion resistance.
  • the fiber strength of the bicomponent fibers is advantageously 1.0 to 6.5 dtex, in particular 1.2 to 4.0 dtex, and preferably 1.5 to 3.0 dtex.
  • the choice of fine fibers is particularly advantageous, since with the fineness of the fibers a higher proportion of point-like connections can be obtained, which is positive for the cohesion of the fibers and the layers and is therefore associated with better abrasion resistance.
  • the fiber length of the bicomponent fiber is advantageously chosen from 10 to 80 mm, in particular from 20 to 70 mm and preferably from 40 to 50 mm. This advantageously enables penetration of the respective layer and production of connections to the fiber surfaces.
  • fluff pulp, cotton, viscose or combinations thereof can be used as absorbent cellulosic fibers.
  • hydrophilic synthetic fibers fibers based on a polymer based on polyolefins, in particular PP or PE, based on a polymer based on polyester, based on a polymer based on polyamides, or combinations thereof can be used, it being possible for the synthetic fibers to be provided with a hydrophilic finish.
  • polyester-based fibers be it as a bicomponent fiber and / or as a hydrophilic synthetic fiber, also proves to be particularly advantageous, in particular because of their structurally elastic behavior. It there is a volumetric property that can be attributed to the resilience of these fibers.
  • the base layer and the cover layer differ at least with regard to one property.
  • the property can be taken from the group of fiber composition, weight per unit area, thickness, density, water retention capacity.
  • the properties of the layers can be matched to one another even better by using layers that complement one another.
  • the top layer can be designed in such a way that it draws sweat away from the foot as quickly as possible and transfers it to the base layer.
  • the top layer contains 25-35% by weight of bicomponent fibers, in particular based on polyester, at least 20% by weight, preferably at least 30% by weight of hydrophilic synthetic fibers, in particular polyester fibers, and optionally / optionally additionally up to 50% by weight , in particular up to 40% by weight of cellulose-based fibers, in particular viscose.
  • the base layer has 35-60% by weight of bicomponent fibers, preferably on a polyester basis, at least 40% by weight of cellulose-based fibers, in particular cotton, and optionally / optionally additionally up to 10% by weight of synthetic fibers, in particular polyester fibers.
  • top layer and / or the base layer are combined before the laminate is formed Solidification process are subjected.
  • Known consolidation processes such as thermal consolidation processes, calendering, mechanical needling, water jet needling, etc. can be used.
  • Preferably combinations of the aforementioned consolidation processes are used.
  • Particularly preferred is water jet needling or mechanical needling with subsequent thermal consolidation.
  • mechanical needling, in particular of the cover layer can improve the porosity of the cover layer and thus the ability to pass liquid through.
  • the insole has a soaking time of a maximum of 20 seconds, in particular a maximum of 15 seconds and in particular a maximum of 10 seconds. Together with the coordinated structure of the top layer and base layer, this enables the dry microclimate on the foot to be achieved particularly well.
  • the infiltration time is determined according to the following procedure:
  • the soak-in time is intended to describe the ability of the insole to keep moisture away from the product surface that is close to the body, i.e. from the foot surface of the insole.
  • test specimens must be laid out flat for the performance of the test procedure. If necessary, the edges of curved test products must be cut in such a way that the test sample can be laid flat.
  • test specimens must be conditioned for at least 2 hours in a standard climate at 23 ° C ⁇ 2 ° C and 50% ⁇ 2% humidity.
  • the samples must not be kinked or folded in the area provided for the placement of the opening cylinder of the feeding device; other changes and contamination must also be avoided.
  • the entire insole is used as the test body.
  • the insole is spread flat with the top facing the foot, i.e. with the foot surface facing upwards.
  • the liquid supply device described above is placed on the spread out test specimen, so that the opening of the supply cylinder is positioned centrally on the insole.
  • 2 ml of test solution are poured onto the test specimen through the opening cylinder.
  • the inserted measuring pipette is pushed through with the end of the pipette tip level with the upper edge of the opening cylinder and in the center within the opening cylinder with a pull and the 2 ml test liquid is released.
  • the infiltration time is over and is measured as soon as no more test liquid is visible in the opening cylinder.
  • the infiltration time is given as an average value in seconds without decimal places.
  • the foot feeling can further preferably be improved in that the cover layer and / or the base layer have a water holding capacity of at least 1 g / g and at most 15 g / g (grams of liquid per gram of nonwoven layer).
  • the water holding capacity of the top layer and / or base layer is more preferably at least 2 g / g, more particularly at least 4 g / g and more preferably at least 5 g / g, with maximum values of 12 g / g relating to a particularly preferred embodiment.
  • the water holding capacity of the base layer is preferably higher than the water holding capacity of the top layer.
  • the water holding capacity of the insole is in particular between 1 g / g and 15 g / g.
  • the water holding capacity is determined using the following method.
  • 100 mm x 100 mm test strips are punched out of the layer to be tested or from the entire product. If the samples are narrower, narrower test strips are punched out and placed next to one another so that an area of 100 x 100 mm can be measured.
  • the layers must be separated from the overall product, the insole.
  • the samples are conditioned for at least 24 hours at 23 ° C ⁇ 2 ° C and 50% ⁇ 2% relative humidity.
  • the test objects with a total weight of at least 1 g are placed between the top surfaces of the wire mesh Weighed 0.01 g exactly (M1)) evenly clamped in the wire mesh. If a single sample weighs less than 1 g, several samples are stacked to form a sample stack that should weigh at least 1 g.
  • the wire mesh together with the sample is immersed in demineralized water and remains in it for 60 seconds.
  • the wire mesh is then removed from the liquid together with the sample, and the fluid is allowed to drip off over a corner for 120 seconds.
  • the samples are removed from the wire mesh and then weighed again to the nearest 0.01 g (M2).
  • the water absorption capacity is calculated according to the equation (M2 - M1) / M1 and then given in g / g. The value results from the mean of 3 determinations rounded to one decimal place.
  • the water holding capacity of the base layer is higher than the water holding capacity of the top layer, and thus the foot sweat is stored near the sole and thus away from the foot.
  • the top layer is designed in such a way that it absorbs liquid, in particular sweat, well and passes it on to the base layer in order to transport the liquid away from the foot quickly. Furthermore, it can be favorable if the cover layer is able to distribute the liquid in the lateral direction, that is to say in the surface of the cover layer, in order to use the capacity of the base layer for liquid absorption as uniformly and thus optimally as possible.
  • the two layers essentially cover their entire overlapping surfaces are connected.
  • a partial or punctiform connection that is distributed over the entire overlapping area is particularly preferred.
  • the connection can also preferably take place via embossed patterns.
  • the base layer and the cover layer are particularly preferably connected to one another via an embossed pattern produced by calendering. By introducing embossed patterns into the layers and thereby connecting the layers, the capillarity can be increased so that the liquid transport is improved.
  • the proportion of embossed points in the total area of the insole is preferably 5-15%.
  • the groups of active substances are preferably provided on the surface of the foot and on the surface of the sole.
  • the odor absorbent is particularly advantageously provided on the sole surface. This can prevent an odor emerging from the bottom surface of the sole, which may also become lodged in the shoe. In particular, odors already present in the shoe can also be bound. Furthermore, it can also be provided that an odor absorbent is provided in the base layer and not just on the sole surface in order to reduce or prevent odor formation in the sweat-storing layer.
  • odor absorption should in particular also be understood to mean an adsorption mechanism.
  • the odor-masking substance is provided on the foot surface and / or in the cover layer in order to counteract the odor arising directly on the foot.
  • an antimicrobial active ingredient is provided on the foot surface and / or in the cover layer and / or on the sole surface and / or in the base layer.
  • the antimicrobial active ingredient in the layers, i.e. in the top layer and / or in the base layer, the formation of odors by bacteria can be combated, since the growth of the sweat-decomposing bacteria is inhibited or their growth is completely prevented.
  • the antimicrobial active ingredient serves to combat microorganisms on the sole side, and thus also to combat odor development in the shoe.
  • the use of the antimicrobial active ingredient on the foot surface and / or in the top layer is intended to contribute advantageously to preventing the development of new odors.
  • At least one of the active ingredient groups is not mixed into the base layer and / or into the top layer, but rather essentially remains on the surface of the sole and / or foot.
  • At least two groups of active substances are particularly preferably provided exclusively on the sole surface and / or the foot surface. It is particularly preferred that at least one active ingredient group is provided in particle-bound and / or polymer-bound form on the sole and / or foot surface of the base material. At least two of the active ingredient groups are preferably provided in particle-bound and / or polymer-bound form on the surface of the sole and / or foot. In this way it can be ensured that the active ingredients remain in the desired location and develop their effectiveness there.
  • At least one active ingredient group in particular the antimicrobial active ingredient, is not provided in particle-bound and / or polymer-bound form on the sole and / or foot surface of the base material and thus can and / or is diffused into the interior of the respective layer, in particular also the adjacent layer.
  • This can already be provided by the manufacturer or, when in use, can take place through the sweat liquid, which enters the active substance into the top layer and / or base layer, which together form the base material.
  • the base layer as the layer that mainly binds sweat, it is advantageous to have the antimicrobial active ingredient present in the interior of the layer to combat and / or prevent bacterial growth.
  • a group of active substances e.g. to provide an antimicrobial agent in the top layer and / or on the top layer, i.e. the foot surface, to counteract the formation of odors due to fresh sweat and to arrange an odor-absorbing agent in or on the base layer to combat old odors.
  • activated carbon can be used, e.g. can be introduced into a coating applied to the sole surface.
  • odor-masking substances on or in the top layer can also be combined with an odor-absorbing active ingredient on the sole surface or in the base layer in order to cover up the newly emerging odors.
  • combinations of odor-masking substances in or on the top layer with antimicrobial active ingredients in or on the base layer are also conceivable in order to counteract the formation of odors by inhibiting bacterial growth and to cover up new formation of odors. It is particularly preferred and effective for odor control if a combination of three different groups of active substances is provided. The combination thus has at least one antimicrobial active ingredient, an odor absorbent and an odor-masking substance.
  • At least two active agents are arranged on one of the surfaces, sole surface or foot surface and at least one active substance group is arranged on the other surface, foot surface or sole surface.
  • the insole can have a coating on the sole surface which gives the sole surface an increased frictional force compared to the uncoated sole surface.
  • the coating can consist of point, line and / or sheet-like coating elements or combinations thereof.
  • a coating formed from coating lines is particularly preferably provided.
  • At least one of the active ingredient groups is preferably incorporated into the coating and / or connected to it.
  • the odor absorbent and / or the antimicrobial active ingredient is particularly preferably incorporated into the coating and / or connected to it.
  • the coating on the sole surface can be formed from a multiplicity of individual patterns formed by coating lines.
  • the individual patterns are preferably more than just a point-like pattern.
  • the line preferably does not extend exclusively as a straight line in only one vector direction, but this pattern of lines has at least one curvature and / or at least one kink.
  • Individual patterns can have arrangements as pattern groups in which at least two pattern elements are arranged side by side and in contact, or in particular also pattern groups in which one pattern element at least partially surrounds or runs around another pattern element, such as concentric arrangements, or any geometric figures lying one inside the other Kind of touching at one point.
  • the sole surface can particularly preferably have a degree of coverage by the coating of at least 6%, in particular at least 8%, in particular at least 10%, further in particular at least 20% and in particular of at most 50%, further in particular at most 40% and further in particular at most 30%.
  • the coating elements essentially fit into the sole surface record their entire extent, not just special areas such as heel and / or ball of the foot. It is therefore preferably provided that the coating extends over the entire sole surface, whereby, depending on the intended pattern, individual areas of the sole surface, such as the toe / ball area and / or heel area, can have an increased density of coating elements and other areas, such as the arch area may have a lower density.
  • the sweat and thus odor-prone areas of the shoe such as in particular in the toe / ball area, can also be taken into account.
  • the line width can be at least 0.2 mm, in particular at least 0.4 mm, in particular at least 0.5 mm and further in particular at least 0.6 mm.
  • the line width should preferably be at most 2 mm, further in particular at most 1.6 mm, further in particular at most 1.2 mm, further in particular at most 1.0 mm.
  • the line length in relation to the line width should be at least 5 times, preferably at least 6 times, more preferably at least 8 times and more preferably at least 10 times the line width.
  • the height of the coating elements should be at least 0.1 mm, in particular at least 0.2 mm.
  • the height of the coating elements should be at most 0.8 mm, further in particular at most 0.6 mm and further in particular at most 0.4 mm.
  • the measurement of the height can be determined with a microscope with a corresponding magnification, namely as the difference between one averaged top edge of the base material and the top edge of the coating elements.
  • the weight per unit area of the coating on the sole surface can be at least 5 g / m 2 , in particular at least 10 g / m 2 , further in particular at least 15 g / m 2 and further in particular at least 20 g / m 2 .
  • the weight per unit area should preferably be limited to 50 g / m 2 and more particularly to a maximum of 30 g / m 2 .
  • the coating is in particular polymer-based and in particular based on a polymer taken from the group comprising polyolefins (in particular PE, PP), acetates, in particular ethylene vinyl acetates (EVA), polyamides (PA), styrene polymers or combinations thereof.
  • the Shore A hardness is measured in accordance with the standards DIN 53505: 2000-08 and ISO 868: 2003 (E). A Shore A hardness tester is used.
  • the sole side with the coating can have a dynamic coefficient of friction, measured according to ASTM D 1894-01, of at least 0.6, in particular at least 0.8 and more particularly at least 1.0, with maximum values of a maximum of 2.0, further in particular a maximum of 1.5 and further in particular a maximum of 1.2 should be achieved.
  • the insole has at least two different groups of active substances.
  • the odor absorbent can be selected from the group of carbons, in particular activated charcoal, zeolites, starch, kieselguhr or combinations thereof.
  • the antimicrobial active ingredient can be selected from the group of antimicrobial metals, in particular silver, or the polysaccharides, in particular chitosan, or combinations thereof.
  • Antimicrobial metals have the advantage that the active ingredient is only released in the form of ions when the liquid enters, and thus a need-based dosage can be achieved over a longer period and the amount of odor-producing bacteria can at least be limited.
  • silver it can preferably be used in the form of silver particles.
  • the silver particles can preferably consist of a matrix, in particular a glass ceramic matrix, on whose surface and / or in whose interior silver is bound.
  • the odor-masking substance is a substance that conveys a fragrance on a synthetic and / or natural basis.
  • Essential oils or perfume oils are also conceivable.
  • the odor-masking substance is particularly preferably an at least partially bound and / or complexed fragrance, such as, for example, a fragrance embedded in cyclodextrin structures and / or in particular a microencapsulated fragrance, which in particular comprises a perfume oil.
  • a fragrance embedded in cyclodextrin structures and / or in particular a microencapsulated fragrance, which in particular comprises a perfume oil.
  • microencapsulated fragrances there is the advantage that these can implement a delayed release of active ingredients. It can be provided that the microcapsules are destroyed by pressure or shearing, for example by the weight of the person, and the fragrance is released in a controlled manner.
  • the antimicrobial agent has a weight per unit area of 0.001-2 g / m 2 , in particular 0.01-2 g / m 2 , more in particular 0.05-1.5 g / m 2 , more in particular of 0.1-1.0 g / m 2 , further in particular 0.1-0.5 g / m 2 , is provided.
  • the insole is equipped with an antimicrobial active ingredient in a proportion based on the entire insole of 0.0001-2% by weight, in particular 0.001-2% by weight, further in particular 0.002-1.5% by weight , further in particular 0.002-1.0% by weight.
  • the odor absorbent can preferably be provided with a weight per unit area of 0.2-30 g / m 2 , in particular 1-20 g / m 2 , further in particular 2.5-15 g / m 2 .
  • the insole is equipped with an odor absorbent in a proportion based on the entire insole of 0.1-6% by weight, in particular 0.5-5% by weight, further in particular 1.0-4% by weight -% having.
  • the odor-masking substance is provided with a weight per unit area of 0.1-5 g / m 2 , in particular 0.5-3 g / m 2 , further in particular 1-2 g / m 2 .
  • the insole is equipped with an odor-masking substance in one Proportion based on the entire insole of 0.05-1% by weight, in particular 0.1-0.8% by weight, further in particular 0.2-0.6% by weight.
  • the combination of the active ingredient groups antimicrobial active ingredient and odor absorbent with a weight ratio of 1: 2 to 1: 500 and / or the combination of the active ingredient groups antimicrobial active ingredient and odor-masking substance in a weight ratio of 1: 0.5 to 1: 150 is particularly preferred.
  • the base material especially in the case of multi-layer base material, has a base layer with a weight per unit area of preferably at least 180 g / m 2 , more preferably at least 200 g / m 2 , more preferably at least 220 g / m 2 , more preferably at most 300 g / m 2 , more preferably at most 280 g / m 2 , more preferably at most 250 g / m 2 .
  • the top layer in particular has a basis weight of at least 10 g / m 2 , more preferably of at least 15 g / m 2 , more preferably of at least 20 g / m 2 , more preferably of at most 100 g / m 2 , more preferably of at most 90 g / m 2 , more preferably at most 80 g / m 2 .
  • the top layer can preferably have lower maximum limits for summer, in particular a maximum of 50 g / m 2 of grammage, while the top layer for winter, on the other hand, has higher minimum values of in particular at least 50 g / m 2 basis weight.
  • the thickness of the insole, including a coating on the sole surface is preferably 1-3 mm, preferably 1-2 mm.
  • the thickness of an insole is determined using a specific measuring pressure of 0.5 kPa on a probe surface of 25 cm 2 .
  • a DMT thickness measuring device from Schröder can be used.
  • the thickness is determined based on DIN EN ISO 9073-2: 1995.
  • the insole is preferably a throw-away product, that is to say a disposable product. In principle, however, insoles that can be washed or cleaned are also conceivable.
  • Figure 1 shows a plan view of the sole surface of an insole 100 according to the invention, wherein the sole surface 102 faces an insole of a shoe when the insole is used and the surface opposite the sole surface 102 faces the foot as a foot surface 104.
  • the insole 100 consists of a two-layer base material, specifically with a cover layer 200 facing the foot and a base layer 202 facing the shoe, as in FIG Figure 3a as a schematic cross section through the insole 100 according to Figure 1 is shown.
  • the top layer 200 and the base layer 202 consist of a staple fiber fleece.
  • the nonwoven material contains bicomponent fibers in the cover layer and in the base layer, shown with the reference number 150, and absorbent cellulose-based fibers and / or hydrophilic synthetic fibers, shown with the reference number 152.
  • Both the top layer 200 and the base layer 202 preferably contain at least 10% by weight of bicomponent fibers in the total weight of the respective layer, with a proportion of 60% by weight preferably not being exceeded.
  • the bicomponent fibers contribute with their low-melting component, preferably the sheath component, to a point connection 160 of the fibers in the layers and between the layers, as in FIG Figure 3b is shown schematically.
  • the top layer and the base layer advantageously have a water absorption capacity of at least 2 g / g.
  • the insole has a soaking time of a maximum of 20 seconds.
  • the base material is solidified in that it was embossed calendered, that is, it was passed between a heated calender roll with protruding embossing projections and a counter pressure roll.
  • the Figure 1 visible surface structure 106 formed with punctiform and web-shaped embossed structures 109 in the illustrated case.
  • the engraving depth that is achieved by calendering is 0.7 mm in the present case, but can be set as desired by a person skilled in the art on the basis of his specialist knowledge.
  • highly compacted embossed areas 109 are formed next to less compacted areas 110.
  • the proportion of the highly compacted areas 109 in the total area is 5-15% in this case.
  • the base material of the insole has a base layer with a grammage of preferably 200-300 g / m 2 and a top layer with a grammage of preferably 20-100 g / m 2 , depending on the seasonal use of the insole, a higher surface weight of the top layer of 50-100 g / m 2 for winter insoles and a lower basis weight of 20-50 g / m 2 for summer insoles.
  • a coating 112 of coating lines 114 is provided on the sole surface 102 of the insole 100 facing away from the sole of the foot and facing the insole of a shoe. This serves to prevent the insole 100 from slipping in a shoe.
  • the coating lines 114 are polymer-based and are preferably made of EVA (ethylene vinyl acetate).
  • the material preferably has a Shore A hardness of at least 30, preferably of 60-80 and preferably of at most 90.
  • the coating lines are applied by means of an engraving process, the insole 100 being passed between an engraved roller and an opposing roller.
  • the width of the coating lines is preferably 0.5-0.7 mm.
  • the height of the coating lines is preferably 0.2-0.3 mm, so that the applied coating pattern does not cause any unpleasant haptic effects on the foot.
  • each individual pattern 120 is preferably formed by pattern groups 124, the pattern groups consisting of at least three pattern elements 126, here concentrically arranged circles, and no coating compound is applied between the individual circles of each individual pattern group forming an individual pattern, i.e. an uncoated area 116 therein present.
  • a total degree of coverage of approx. 20-25% on the sole surface is achieved by the coating lines 114.
  • the properties that are further attributed and desired to the base material of the insole such as air permeability and / or breathability, are not significantly influenced.
  • the dynamic coefficient of friction of the coated sole surface measured on the basis of ASTM D 1894-01, is between 0.8 and 1.4.
  • Figure 4 shows in the representations a) and b) and Figure 5 shows in representations a) to c) a section through an insole 100 according to the invention, comprising a base material with two layers, namely a cover layer 200 and a base layer 202.
  • the base layer 202 faces a shoe and has the sole surface 102.
  • the cover layer 200 faces a foot and comprises the foot surface 104.
  • a coating 112 is provided on the sole surface, which is analogous to the coating shown in FIG Figure 2 can be designed.
  • the base layer 202 in particular the sole surface 102 and the cover layer 200, in particular the foot surface 104, are each assigned active substances for preventing or improving odor.
  • the active ingredients are selected from the active ingredient groups antimicrobial active ingredient, odor absorbent and odor masking substance.
  • FIGS 4a and 4b Examples of the arrangement of two groups of active substances are given in Figures 4a and 4b shown.
  • an antimicrobial agent 204 here not in a polymer or particle-bound version, is applied to the foot surface 104 and partly also in the cover layer 202, and an odor absorbent 206 is incorporated into the coating 112 on the sole surface 102.
  • an odor-masking substance 208 on the foot surface and an antimicrobial active ingredient 210 in the coating 112 on the sole side 102 are provided as active ingredients.
  • the active ingredients are distributed in such a way that the odor absorbent 206 is provided in the coating 112 on the sole surface 102, a highly porous, fine-grain carbon such as activated carbon being preferably used here.
  • the odor absorbent is thus in direct contact with the shoe and the odors there. This leads to a direct and rapid absorption or binding of the odors.
  • the odor-masking substance in the form of microencapsulated fragrances containing perfume oils, which are provided with the reference numeral 208, is provided on the foot surface.
  • the fragrances are dosed and released in a controlled manner through pressure and shear when using the insole, which destroys the capsules.
  • a polysaccharide in particular chitosan, is used as the antimicrobial active ingredient, which is indicated here with the reference numeral 204, both on the foot surface 104 and in the nonwoven material of the top layer 200, and partly in the nonwoven material of the base layer 202.
  • This active ingredient is used to control the odor of Fresh foot sweat by inhibiting the growth of bacteria through its antimicrobial activity.
  • FIG. 5b An analog design is shown Figure 5b ), the antimicrobial agent being provided in the form of silver particles 210 on the foot surface 104.
  • the silver particles preferably consist of silver bound to a glass ceramic matrix.
  • the illustration shows an alternative design Figure 5c ) in the case of the same silver particles 210 as in the illustration Figure 5b ) and also the odor absorbent 206 is present in the coating 112 on the sole surface 102.
  • the antimicrobial agent 210 can be used to control bacterial growth on the sole side and thus also to control odor in the shoe.
  • the Fragrances containing odor-masking substances 208 and the sweat-absorbing effect of top layer 200 and base layer 202 the new sweat and the formation of new odors are controlled.
  • the insole includes a base material from a base position 200 to 300 g / m 2 and a cover layer of 50-100 g / m 2.
  • the base layer has a fiber composition of 35-60% by weight PES bicomponent fiber and also a mixture of hydrophilic synthetic PES fibers and absorbent cellulosic fibers; the cover layer comprises 25-35% by weight PES bicomponent fibers and further hydrophilic synthetic PES fibers.
  • the top layer is laminated onto the base layer by means of pressure, temperature and an embossed pattern.
  • chitosan is applied to the surface of the foot as an antimicrobial active ingredient together with a microencapsulated perfume oil as an odor-masking substance.
  • the entry of chitosan is 0.05-0.06% by weight and that of encapsulated perfume oil is 0.5-0.65% by weight, each based on the total weight of the insole.
  • activated charcoal is incorporated into a linear polymer coating on the sole side, with a proportion of 1-2% based on the total weight of the insole.
  • particle-bound silver with a proportion of 0.003-0.005% by weight based on the total weight of the insole is applied to the foot surface as the antimicrobial active ingredient.
  • log 10 C 0 or log 10 T 0 general logarithm of the arithmetic mean for the bacterial count immediately after inoculation for control tissue C or test sample T.
  • a simplified calculation is used as a basis, with the modification that the germ growth log 10 C 0 and log 10 T 0 are equated.
  • Such an insole offers good walking comfort, combined with a dry foot feeling and reduced odor formation.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (19)

  1. Semelle intérieure (100) pour chaussures, en particulier en tant que produit à usage unique, avec un matériau de base à au moins deux couches comprenant une couche de couverture (200) montrant vers le pied et une couche de base (202) reliée à celle-ci et montrant vers la chaussure et avec une surface de pied (104) montrant vers le pied et une surface de semelle (102) opposée montrant vers la chaussure, dans laquelle ladite couche de couverture (200) et ladite couche de base (202) sont constituées d'un non-tissé en fibres discontinues, dans laquelle la couche de couverture et la couche de base contiennent des fibres à deux composants et des fibres absorbantes à base de cellulose et/ou des fibres synthétiques hydrophiles, et dans laquelle la semelle intérieure présente une combinaison comprenant au moins deux groupes différents d'agents actifs, dans laquelle les groupes d'agents actifs sont choisis dans le groupe comprenant l'agent actif antimicrobien, l'absorbant d'odeurs et la substance masquant les odeurs, et dans laquelle au moins un groupe d'agents actifs est associé aussi bien à la couche de base (202) qu'à la couche de couverture (200).
  2. Semelle intérieure (100) selon la revendication 1, caractérisée par le fait que la semelle intérieure (100) présente un temps d'infiltration de 20 secondes au maximum, en particulier de 15 secondes au maximum et en particulier de 10 secondes au maximum.
  3. Semelle intérieure (100) selon l'une quelconque des revendications 1 ou 2, caractérisée par le fait que la couche de couverture (200) et/ou la couche de base (202) présente une capacité de rétention d'eau d'au moins 1 g/g et de 15 g/g tout au plus.
  4. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que la couche de base (202) et la couche de couverture (200) sont reliées entre elles par un motif de gaufrage (109), réalisé en particulier par calandrage.
  5. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que l'absorbant d'odeurs (206) est prévu sur la surface de semelle (102).
  6. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que la substance masquant les odeurs (208) est prévue sur la surface de pied (104).
  7. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que l'agent actif antimicrobien (204, 210) est prévu sur la surface de pied (104) et/ou dans la couche de couverture (200) et/ou sur la surface de semelle (102) et/ou dans la couche de base (202).
  8. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que l'un au moins des groupes d'agents actifs est prévu comme ayant non pénétré dans la couche de base (202) et/ou dans la couche de couverture (200), en particulier que les groupes d'agents actifs sont prévus sous une forme à liaison de particules et/ou à liaison de polymère sur la surface de semelle (102) et/ou la surface de pied (104) du matériau de base.
  9. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait qu'au moins un groupe d'agents actifs, en particulier l'agent actif antimicrobien (204, 210), n'est pas prévu sous une forme à liaison de particules et/ou à liaison de polymère sur la surface de semelle (102) et/ou la surface de pied (104) du matériau de base et peut ainsi diffuser et/ou est diffusé dans l'intérieur de la couche respective, en particulier également de la couche adjacente, la couche de couverture (200) et/ou la couche de base (202).
  10. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait qu'une combinaison de trois groupes d'agents actifs différents est prévue.
  11. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que sur l'une des surfaces, la surface de semelle (102) ou la surface de pied (104), sont disposés au moins deux groupes d'agents actifs et sur l'autre surface, la surface de pied (104) ou la surface de semelle (102), est disposé au moins un groupe d'agents actifs.
  12. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait qu'un revêtement (112) est prévu sur la surface de semelle (102), qui confère à la surface de semelle (102) une force de friction accrue par rapport à la surface de semelle (102) non revêtue, et que, en particulier, le revêtement (112) n'est pas réalisé sur toute la surface, mais, en particulier, est formé d'éléments de revêtement ponctuels, linéaires et/ou plans, en outre notamment par des lignes de revêtement (114).
  13. Semelle intérieure (100) selon la revendication 12, caractérisée par le fait que l'un au moins des groupes d'agents actifs est introduit dans le revêtement (112) et/ou est relié à celui-ci.
  14. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que l'absorbant d'odeurs (206) est choisi dans le groupe constitué par les carbones, en particulier le charbon actif, les zéolithes, l'amidon, la terre à diatomées ou leurs combinaisons.
  15. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que l'agent actif antimicrobien (204, 210) est choisi dans le groupe constitué par les métaux antimicrobiens, en particulier l'argent, ou les polysaccharides, en particulier le chitosane, ou leurs combinaisons.
  16. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que la substance masquant les odeurs (208) est en particulier un parfum microencapsulé et comprend en particulier une huile de parfum.
  17. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que la couche de couverture (200) présente entre 25 et 35 % en poids de fibres à deux composants, en particulier à base de polyester, au moins 20 % en poids, en particulier au moins 30 % en poids de fibres synthétiques hydrophiles, en particulier des fibres de polyester, et le cas échéant/en option en plus jusqu'à 50 % en poids, en particulier jusqu'à 40 % en poids de fibres à base de cellulose, en particulier de viscose.
  18. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que la couche de base (202) présente entre 35 et 60 % en poids de fibres à deux composants, de préférence à base de polyester, au moins 40 % en poids de fibres à base de cellulose, en particulier de coton, et le cas échéant/en option en plus jusqu'à 10 % en poids de fibres synthétiques, en particulier de fibres de polyester.
  19. Semelle intérieure (100) selon une ou plusieurs des revendications précédentes, caractérisée par le fait que les groupes d'agents actifs constitué par l'agent actif antimicrobien (204, 210) et l'absorbant d'odeurs (206) sont introduits avec un rapport pondéral de 1 : 2 à 1 : 500 et/ou les groupes d'agents actifs constitué par l'agent actif antimicrobien (204, 210) et la substance masquant les odeurs (208) sont introduits dans un rapport pondéral de 1 : 0,5 à 1 : 150.
EP17725562.7A 2016-05-24 2017-05-18 Semelle intérieure Active EP3462957B1 (fr)

Applications Claiming Priority (2)

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DE102016109595.8A DE102016109595A1 (de) 2016-05-24 2016-05-24 Einlegesohle
PCT/EP2017/062027 WO2017202695A1 (fr) 2016-05-24 2017-05-18 Semelle intérieure

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EP3462957A1 EP3462957A1 (fr) 2019-04-10
EP3462957B1 true EP3462957B1 (fr) 2020-09-02

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US (1) US20200345104A1 (fr)
EP (1) EP3462957B1 (fr)
CA (1) CA3024893A1 (fr)
DE (1) DE102016109595A1 (fr)
ES (1) ES2827502T3 (fr)
WO (1) WO2017202695A1 (fr)

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CN108819076A (zh) * 2018-05-29 2018-11-16 东莞市建信新材料有限公司 一种有助于人体血液循环的鞋垫制作工艺
US11058171B2 (en) * 2018-06-13 2021-07-13 Ccilu International Inc. Shoe material part
US20200170346A1 (en) * 2018-12-04 2020-06-04 Jannette Venegas Shoe Deodorizing Insert Assembly
USD903268S1 (en) 2019-02-06 2020-12-01 S. C. Johnson & Son, Inc. Insole
USD906658S1 (en) 2019-02-19 2021-01-05 S. C. Johnson & Son, Inc. Insole
CA3167591A1 (fr) * 2020-03-13 2021-09-16 Piana Nonwovens, LLC. Non-tisse a chevauchement vertical dans des articles chaussants
CH717440A2 (de) * 2020-05-18 2021-11-30 Flawa Consumer Gmbh Grössenanpassbare Einlegesohle.
CN112056693A (zh) * 2020-08-31 2020-12-11 江苏福砳生物环保科技有限公司 一种新型鞋垫及其制备工艺

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FR1070636A (fr) * 1953-01-24 1954-08-03 Semelle intérieure interchangeable pour chaussures
US4062131A (en) * 1976-09-10 1977-12-13 Scholl, Inc. Insoles for footwear
DE3520093A1 (de) * 1985-06-05 1986-12-11 Fa. Carl Freudenberg, 6940 Weinheim Deck- oder einlegesohle
US4864740A (en) 1986-12-22 1989-09-12 Kimberly-Clark Corporation Disposable hygienic shoe insole and method for making the same
CH679442A5 (fr) 1989-08-14 1992-02-28 Flawa Schweiz Verband Wattefab
DE19525858C1 (de) * 1995-07-15 1996-11-14 Freudenberg Carl Fa Einlegesohle für Schuhe und Verfahren zur Herstellung
US7047671B2 (en) * 2000-08-10 2006-05-23 Cheryl Steed Disposable shoe insert
DE10235511A1 (de) * 2002-07-29 2004-02-12 Paul Hartmann Ag Einlegesohle
NL1025413C1 (nl) 2004-02-05 2004-03-16 Sara Lee De Nv Inlegzool.
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US20200345104A1 (en) 2020-11-05
CA3024893A1 (fr) 2017-11-30
EP3462957A1 (fr) 2019-04-10
WO2017202695A1 (fr) 2017-11-30
ES2827502T3 (es) 2021-05-21
DE102016109595A1 (de) 2017-11-30

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