WO2021194378A1 - Scented shoe insert - Google Patents

Abstract

A scented multi-layered shoe insert comprises a bottom layer, a perforated middle layer, and a perforated top layer. The bottom layer consists of a top layer in the form of a fabric base with rubber cement applied thereto, an intermediate layer made of a flexible polymeric material, and a bottom adhesive layer. The middle layer is in the form of a compressed hermetically heat sealed pad of sheet felt impregnated with a volatile scenting mixture. The top layer is made of a breathable material, and the middle layer has a smaller area than the bottom and top layers. The middle layer is arranged between the top and bottom layers in such a way that the surfaces of the bottom and top layers are able to come into contact with one another along the entire perimeter. An adhesive layer is applied across the entirety of the top and bottom surfaces of the bottom layer and across the entirety of the bottom surface of the top layer in order to fasten the top and bottom layers together and to fasten the bottom layer to the inside part of a shoe accordingly.

Description

Scented shoe liner

Technology area

The invention relates to polymer and inorganic chemistry and the shoe industry, namely to replaceable flavored shoe liners designed to get rid of unpleasant odor in shoes when wearing and neutralize the smell of sweat.

State of the art

From the prior art, flavored shoe insoles are known, which are flat bags filled with medicinal herbs (application CN 103355852 A, 23.10.2013, application CN 103355841 A, 23.10.2013), designed to absorb particles that spread an unpleasant odor, thus neutralizing , unpleasant odors arising from wearing shoes.

The disadvantages of the known insoles are the need to select and fit the insole to the size of the shoe, as well as the lack of reliable attachment to the inside of the shoe in order to avoid the movement of the insole on the shoe while walking, which can cause discomfort for the user.

Also known are shoe inserts that promote ventilation inside the shoe (RU 2559855 C1, 08/20/2015).

Known flavored insole application CN 104665097 A, 06/03/2015) containing a lower layer, a middle layer of felt impregnated with a solution with vanilla aroma, and an upper breathable layer of cotton fabric. The disadvantage of the insole is the lack of fixation of the insole inside the shoe, as well as the absence of bactericidal properties, since the solution impregnating the middle layer of the insole only helps to mask the smell, but not to eliminate its causes.

Known insole for shoes, including three layers bonded to each other, among which there is a moisture-absorbing and hydrophilic layers, while the bottom layer is a solid base made of moisture-resistant cardboard or thin plastic and adjacent to the inner side of the sole of the shoe, the middle layer is an adsorbent, the outer layer adjacent to the foot is made of a biocomponent material that allows moisture to pass into the absorbing layer and prevents the exit it outward, while at least one layer is perforated, and in the area of the heel on the insole there is an adhesive velcro tape for fixing (RU 94118 U1, 20.05.2010).

The disadvantage of the known insole is that only the heel area is attached. The proposed invention does not represent an insole that must be adjusted to the size of the shoe and which is sufficient to be fixed at one point, which does not exclude it from sliding on the shoe while walking around the fixing point, and does not protect against crushing of the material, which may cause inconvenience in using the product. In addition, in the insole from the closest analogue, only the problem of moisture absorption is solved, but the problem of destroying bacteria, whose vital activity is the cause of unpleasant odors, is not solved.

Known is a multi-layer antibacterial insole for shoes, containing five layers interconnected by stitching, the extreme lower and upper upper layers are made of a vapor barrier material that is mechanically resistant to abrasion, a layer of shoe cardboard is glued to the extreme lower layer, an antibacterial therapeutic and prophylactic composition is applied on top of the cardboard , consisting of a layer of honey and a layer of crushed crushed juniper superimposed on top of it, in addition, the end part along the entire perimeter is closed with a stitched overhead edging made of non-woven needle-punched material. On the outer side of the upper layer there is a retaining tape made of woven material located across the plane in its middle part, secured along the edges with a stitched seam an overlay edging for gripping it with one or two fingers when removing it from the shoe. (RU 187614 Sh, 13.03.2019).

Known insole for shoes, consisting of a base in the shape of a foot made of woven liposcopic material of plant or synthetic origin, impregnated with an antimicrobial agent containing vegetable oil, essential oils of sage, chamomile, thuja, eucalyptus, orange peel, cloves or theirs are used as vegetable oil mixtures, and non-woven liposcopic materials made of natural fibers, natural or pressed leather, cardboard, cork, foamed plastic can also be used as a liposcopic base material. The insole is placed in an airtight package made of polymer film or foil to fully preserve its antimicrobial properties until it is used for its intended purpose. The ratio of the liposcopic base material and antimicrobial agent is, May. %: liposcopic base material 86-97, antimicrobial agent 3-14 (see RU 69384 U1, 27.12.2007).

The closest analogue of the patented solution is a flavored shoe liner containing a backing made of a strong and flexible polyethylene film applied to the inside of the shoe, a layer of a compressed tampon made of sterile absorbent cotton wool, impregnated with 100% essential oil and made perforated, the top layer made of air-permeable material, while a strip of adhesive mass is applied along the perimeter of the upper surface of the substrate, by means of which the upper layer of the liner is fixed on the upper part of the substrate, the layer of the pressed tampon is placed between the upper layer and the substrate inside the contour of the strip of adhesive mass applied to the upper surface of the substrate (RU 184814 Sh, 12.11.2018).

Disclosure of invention

The technical problem solved by the claimed invention is to provide a shoe liner that has the ability to eliminate unpleasant odor from feet while wearing shoes from any part of the feet, which is most susceptible to profuse sweating, while it is necessary to be able to fix the liner around its entire perimeter in order to prevent it from moving and crushing inside the shoe, which can cause discomfort, and also does not contribute to the implementation of its purpose when sliding the tab from the place most susceptible to sweating and the spread of an unpleasant odor. At the same time, in contrast to the insoles and liners known from the prior art, it is necessary not only to mask the unpleasant smell of sweat, but also to completely neutralize it without blocking the process of perspiration itself.

The technical result consists in improving the hygiene of the product with an improved bactericidal ability of the insole, which helps to neutralize bacteria that cause an unpleasant odor, which will also eliminate the formation of fungus, cracks and inflammations due to the bactericidal impregnation of the middle layer, while simultaneously attaching the insert to any part of the inner space of the shoe during avoiding its movement and crushing while walking.

It should be emphasized that the elimination of movement and crushing of the liner during walking is directly dependent on neutralizing bacteria and increasing the hygiene of the product, since otherwise (when the product is displaced inside the shoe), the bactericidal effect will not be achieved for the entire surface of the user's foot. Hence, these two outcomes are inextricably linked to each other.

The claimed technical problem is solved due to the fact that the aromatized multilayer liner for shoes, according to the invention, contains a lower layer made of an upper layer in the form of a woven base with rubber glue applied to it, an intermediate layer of a flexible polymer material made with the possibility of preventing leakage fragrance mixture on the shoe insole and applied to the inner part of the shoe using the lower adhesive layer, a perforated middle layer made in the form of a pressed hermetically sealed tampon made of synthetic fiber filler - sheet felt, 2 4 mm thick, impregnated with a volatile aromatic mixture consisting of: natural essential oil, reconstituted essential oil identical natural and aromatic fragrance, and a perforated upper layer made of a material that allows air to pass through, while the middle layer is made of a smaller area than the lower and upper layers, and is located between them in such a way that the surfaces of the lower and upper layers are made with the possibility of contact with each other along the entire perimeter, while along the entire lower and upper surfaces of the lower and lower surfaces of the upper layers, an adhesive layer is applied to fix the upper and lower layers to honey, as well as the lower layer to the inside of the shoe, respectively.

In a preferred embodiment, the bottom and top layers of the liner are matched in size and shape.

In another embodiment, the middle layer is made of a shape memory material, and the perforations of the middle layer are staggered.

The technical result of the claimed invention, in comparison with the closest analogue, is to increase the bactericidal ability of the liner, which helps to neutralize bacteria that cause an unpleasant odor, and also significantly reduces or eliminates the formation of fungus, cracks and inflammation, which is also achieved by avoiding movement and crushing of the liner during the operation of the shoe by more reliable fastening of the liner to the inside of the shoe.

Implementation of the invention

In this section of the description, the most preferred embodiment of the device according to the claimed invention will be given, which, as it is clear to a person skilled in the art, does not limit or exclude other possibilities performance of the device clearly arising from the materials of this application.

The scented shoe liner is made of multilayer.

The bottom layer acts as the first layer, starting from the inner part of the shoe (the inner part is understood as the base on which the user's foot rests).

The lower layer, in turn, is also made multi-layer and consists of:

-from the upper layer of rubber adhesive on a woven backing;

- an intermediate layer made of a flexible polymer material, made with the possibility of preventing the fragrance mixture from flowing onto the shoe insole and applied to the inside of the shoe using

- bottom adhesive layer.

Nairite adhesives of the following brands are used as rubber glue: 88N, 88NP 88NP-35 and NT, used in the cold gluing method, intended for gluing various shoe materials (natural and artificial leather, fabrics, plastics), as well as for gluing rubber, foams, fabrics between themselves.

Cotton is used as a woven base (similar to medical bandages).

The intermediate layer is a part made of a dense flexible polymer material, which is a polyethylene film, non-woven material or synthetic paper with a film interlayer, over the entire surface of which a lower adhesive layer is applied to securely fix the product over the entire area to the inside of the shoe.

The bottom adhesive layer can be acrylic or rubber adhesive. During transportation in packaging, a protective sheet is glued to the lower part, which is removed before installing the liner in the shoes. The middle layer of the insert is made perforated and is a compressed, hermetically sealed swab made of synthetic fiber filler with shape memory effect, such as sheet felt, 2 + 4 mm thick. The use of a synthetic material as a tampon is due to the fact that this material quickly absorbs liquid and vapors of essential oils and other aromatic substances of both organic and chemical origin and keeps this mixture inside for as long as possible. When interacting with oxygen, the fragrance mixture evaporates on this material without residue. The use of perforation promotes air exchange under the foot in the shoe, which significantly improves the consumer properties of the liner and prevents the development of fungus. The perforation is staggered, with an average diameter of 0.2-10.5 mm, while the distance between adjacent holes is 3- ^ 5 mm. In this case, the average diameter is understood as the width of the perforation, taking into account the fact that the perforation itself is performed in a fibrous material, which is sheet thickness felt. Execution of perforations with a specified hole diameter and distance between them is due, on the one hand, to the optimal effect on the user's feet of the bactericidal substances contained inside the insert and passing through the holes of the perforations, and on the other hand, at the specified hole pitch, the duration of the use of this insert in time ...

Making the middle layer of fibrous material improves the absorbent properties of the liner, and also allows it to conform to the part of the foot under which it is enclosed, and provides softness and comfort for the foot when walking.

The specified filler is impregnated with a volatile aromatizing mixture consisting of: natural essential oil, reconstituted essential oil identical to natural and aromatic fragrance. Aromatic fragrance It is used in the production of perfumery and cosmetology, the range of which includes both natural smells of flowers and plants, and not of natural origin, the smell of leather, caramel, the smell of smoke, sea freshness, etc. Essential oil 100% natural, in addition to the aromatizing effect, has various useful therapeutic effects, as well as antifungal and antiviral properties, the duration of the useful action and aromatizing effect is from 14 to 25 days. Reconstituted essential oil, the essential oil is identical to the natural one; it has a more pronounced aroma, has a longer evaporation and useful qualities in combination with natural essential oil, a longer aromatizing effect is achieved by 60-85%. The aromatizer of chemical production "odorant" has a longer aromatizing effect in conjunction with natural essential oils and essential oils restored or identical to natural ones, the shelf life of the declared insert is increased from 8 months to 2 years, the period of the aromatizing effect is increased by 350-400%).

The last layer of the multilayer liner is the top layer, which is also perforated from an air-permeable material.

The upper layer in contact with the user's skin or clothing is a piece of breathable material, or a two-layer material of breathable material with a polyethylene backing - a membrane, with holes of the order of 0.02-0.05 mm for air circulation. The breathable material can be selected from the group: cotton, linen, viscose, microfiber. This layer, as well as the middle layer, is impregnated with an impregnation selected from the group: a mixture of natural essential oil, reconstituted or identical to natural essential oil, musk or 100% essential oils of lavender, spruce, cedar, anise, citrus fruits, eucalyptus and any other oil, having an antiseptic and bactericidal effect. The middle layer is made of a smaller area than the lower and upper layers. This is done in order to minimize the amount of adhesive bonding. Along the entire lower and upper surface of the lower and lower surfaces of the upper layers, an adhesive layer is applied to fix the upper and lower layers to honey, as well as the lower layer to the inside of the shoe, respectively. Thus, the middle layer is located between the upper and lower layers in such a way that the surfaces of the lower and upper layers are made with the possibility of contact with each other along the entire perimeter. In other words, the middle layer plays the role of a kind of core, enclosed in a shell of two lower and upper layers glued together.

The lower and upper layers of the liner correspond to each other in size and shape.

Placing an adhesive mass over the entire area of the lower and upper surfaces of the lower and lower surfaces of the upper layers contributes to a strong fixation of the liner, without moving on the shoe or crumbling during walking. The use of perforation promotes air exchange under the foot in the shoe, which significantly improves the consumer properties of the utility model and prevents the development of fungus. The impregnation of the middle layer gives the liner antibacterial properties and prevents unpleasant sweat odor. Making the middle layer of a synthetic fiber filling with a shape memory effect, such as sheet felt, improves the absorbent properties of the inlay, and also allows the inlay to conform to the part of the foot under which it is enclosed, and provides softness and comfort for the foot when walking. In addition, the use of sheet felt with a thickness of 2-4 mm as a tampon is due to the fact that this material quickly absorbs liquid and vapors of essential oils and other aromatic substances of both organic and chemical origin and keeps this mixture inside for as long as possible. At the same time, the bactericidal effect is provided due to the fact that the upper the layer allows vapors of the impregnation applied to it to pass through and does not allow microorganisms to pass through.

Middle layer dimensions: length - 50 75 mm, width - 25 + 45 mm, thickness 2-5

MM.

The insert is stored individually, one at a time, or a pair of inserts per package. The liner must be replaced after 2 months of wearing it in the shoe.

Below is a comparative table of the device according to the present invention and the closest analogue, which presents the objective data revealed as a result of the experiments:

Table 1

Thus, from the presented comparative table, it can be seen that, despite the rather close indicators of the prototype products and those declared within the framework of this application, small advantages of the implementation of the declared insert are obvious.

In view of the foregoing, it is obvious to a specialist that the claimed technical result, described above, has been achieved.

Claims

Claim 1. A flavored multilayer liner for shoes, characterized in that it contains a lower layer made of an upper layer in the form of a woven base with rubber glue applied to it, an intermediate layer of a flexible polymer material made with the possibility of preventing the fragrance mixture from flowing onto the shoe insole and applied to the inner part of the shoe using the lower glue layer, a perforated middle layer made in the form of a pressed hermetically sealed tampon made of synthetic fiber filler - sheet felt, 2-4 mm thick, impregnated with a volatile aromatic mixture consisting of: natural essential oil, essential oil reconstituted identical to natural and fragrance aromatic, and a perforated top layer made of a material that allows air to pass through, while the middle layer is made of a smaller area than the lower and upper layers, and is located between them in such a way that the surfaces of the lower and upper layers are made with the possibility contact with each other along the entire perimeter, while on the entire lower and upper surfaces of the lower and lower surfaces of the upper layers, an adhesive layer is applied to fix the upper and lower layers together, as well as the lower layer to the inside of the shoe, respectively. 2. A scented shoe insert according to claim 1, characterized in that the lower and upper layers of the insert correspond to each other in size and shape. 3. A flavored shoe insert according to claim 1, characterized in that the middle layer is made of a shape memory material. 4. A scented shoe liner according to claim 1, characterized in that the perforations of the middle layer are staggered.