WO2023044944A1

WO2023044944A1 - High-resilience ultra-light insole and preparation method therefor

Info

Publication number: WO2023044944A1
Application number: PCT/CN2021/121396
Authority: WO
Inventors: 吴荣照; 黄茂盛; 袁雄文; 钟素丹
Original assignee: 福建鸿星尔克体育用品有限公司
Priority date: 2021-09-27
Filing date: 2021-09-28
Publication date: 2023-03-30
Also published as: CN113733703A; CN113733703B

Abstract

A high-resilience ultra-light insole and a preparation method therefor. The insole comprises a fabric layer (1) and a polyurethane layer (2). An upper surface of the fabric layer (1) is a concave-convex strip-shaped structure, comprising strip-shaped protrusions (10) and strip-shaped recesses (11) arranged at intervals in a loop, the strip-shaped protrusions (10) being formed by weaving anti-fouling yarn, the width of a single strip-shaped protrusion (10) being 0.5-1.5 mm, and the total area of the strip-shaped protrusions (10) not exceeding 30% of the area of the fabric layer (1). The strip-shaped recesses (11) are formed by weaving temperature-regulating yarn, and the width of a single strip-shaped recess (11) ranges from 0.8 mm to 2 mm. The polyurethane layer (2) is prepared using a supercritical method, and has a density of 0.03-0.05g/m2. The fabric layer (1) and the polyurethane layer (2) are bonded by means of a dot-shaped adhesive. The insole has a good anti-fouling effect and a good temperature regulating effect, is prepared using a supercritical method, and has low density, light weight and good comfort.

Description

A kind of high resilience ultra-light insole and preparation method thereof

technical field

The invention relates to the technical field of shoe materials, in particular to a high-resilience ultra-light insole and a preparation method thereof.

Background technique

The insole is used above the sole of the shoe and is in direct contact with the human body. The basic function of the insole is the comfort of the sole. The commonly used materials include silica gel, PU, and EVA. Some insoles are also made of multi-layer fabrics. The role of comfort, the resilience of insoles is an important indicator, and insoles with high resilience will reduce the pressure on the feet to a certain extent and play a role in soothing pressure; in addition, as consumers continue to pay more attention to health Improvement, the health care of insoles is also considered by more and more consumers. The health care of insoles includes its antibacterial properties. Since the feet are wrapped in shoes for a long time, when the sweat on the feet cannot be volatilized and excreted in time, fungi will grow and cause For problems such as athlete's foot and foot odor, the insole is in direct contact with the foot, and its good antibacterial type can effectively alleviate such problems; on the other hand, the foot is wrapped in the shoe for a long time. The temperature of the shoes is high, and the feet are prone to feel stuffy; on the contrary, when the weather is cold and there is no exercise for a long time, the temperature inside the shoes is low, and the feet are easy to be cold, which will greatly reduce the comfort of consumers. .

Contents of the invention

In order to solve at least one of the above problems, as a first aspect of the present invention, a high resilience ultra-light insole is proposed.

A high-resilience ultra-light insole, including a fabric layer and a polyurethane layer, the upper surface of the fabric layer is a concave-convex strip structure, including strip-shaped protrusions and strip-shaped depressions arranged periodically at intervals, wherein the strip-shaped protrusions The whole part is woven with anti-fouling yarn, the width of a single strip-shaped convex part is 0.5-1.5mm, and the total area of the strip-shaped convex part does not exceed 30% of the area of the fabric layer; the strip-shaped concave part is temperature-regulating yarn Braided, the width of a single strip-shaped depression is 0.8-2mm;

The polyurethane layer is prepared by supercritical method, and its density is 0.03-0.05g/m ² ;

The fabric layer and the polyurethane layer are compounded by point-like glue.

Further, the upper surface of the insole is provided with a circular protrusion, which is integrally formed with the polyurethane layer, with a diameter of 0.5-1 cm and a height of 0.5-0.8 cm. The position of the circular protrusion corresponds to the forefoot , to play a massage role.

Further, the side where the polyurethane layer is bonded to the fabric layer has circular recesses with a diameter of 0.5-1 cm, grooves are provided between adjacent circular recesses, and the upper part of the circular recesses is glued to match its diameter and has a height of 0.5-1 cm. An adjustable protrusion of 0.8cm, an adjustable pipeline is provided on the upper part of the groove, and the adjustable pipeline is connected to the adjacent adjustable protrusion. The adjustable protrusion and the adjustable pipeline both include an elastic shell and a built-in The flowing liquid in the elastic shell, the liquid of each adjacent adjustable protrusion can flow through the adjustable pipeline, and the filling amount of the flowing liquid is one-half to one-third of the internal volume of the adjustable protrusion and the adjustable pipeline of two.

Further, the fabric layer is a knitted braided layer, which forms a concave-convex strip structure through tucking of loops or computer jacquard.

Further, the fabric layer is a woven weaving layer, which forms a concave-convex strip structure through computer jacquard.

Further, the yarn diameter of the strip-shaped convex part of the fabric layer is 2-3 times of the yarn diameter of the strip-shaped concave part.

Further, the elastic shell is made of any one of silica gel, rubber, and PVC, and a heat-insulating fabric layer is arranged on it.

Further, the flowing liquid is water.

Further, the base material of the antifouling yarn is any one of cotton yarn, viscose or polyester, the surface of which is coated with an antifouling finishing agent.

Further, the antifouling finishing agent is a silicone finishing agent.

As a second aspect of the present invention, a method for preparing the above-mentioned high-resilience ultra-light insole is proposed, comprising the following steps:

S1 prepares the antifouling yarn, adopts the method of spraying, dipping or padding, arranges the antifouling finishing agent on the yarn, and performs antifouling finishing on it;

Preparation of S2 temperature-regulating yarn: choose chitosan as the microcapsule wall, n-eicosane as the microcapsule core, and add the mass ratio of the capsule core material to the capsule wall material at a ratio of 1: (1-4) , and then add water for emulsification and dispersion to obtain an oil-in-water emulsion, and then carry out a complex coagulation reaction on the obtained oil-in-water emulsion, add a curing agent and stir to obtain microcapsules; disperse the microcapsules in the dispersant, and spin Spinning after mixing the dope to obtain temperature-adjusted yarn;

S3 fabric layer weaving: the yarn is woven into a fabric layer with a concave-convex strip structure on the surface, wherein the strip-shaped protrusions are woven with anti-fouling yarns, and the width of a single strip-shaped protrusion is 0.5-1.5mm, and The area of the strip-shaped convex part does not exceed 30% of the area of the fabric layer; the strip-shaped concave part is woven with temperature-regulating yarn, and the width of a single strip-shaped concave part is 0.8-2mm;

Preparation of S4 polyurethane layer: Add polyurethane resin material and cross-linking agent into the reactor at a ratio of 1:2.5 for stirring and blending, and stir for 60-300 seconds at 30-65°C; then add chain extender into the reactor agent, polyester catalyst, foaming catalyst, foam stabilizer, foaming agent, stirring at 20-80°C for 0.5-4 hours; Foaming is carried out at 4-16MPa, foaming for 2-20 minutes, extruded to obtain a polyurethane foam material, which is placed in an insole mold to obtain an insole;

S5 Compounding of fabric layer and polyurethane layer: Laminate the lower surface of the fabric layer with the polyurethane layer by dot-like gluing, wherein the area of a single glued spot does not exceed 0.5mm ² , and the total area of the total glued dots does not exceed One-third of the insole area.

Further, the polyurethane resin material can be a blend of plant-based polyols and polyethylene glycol, a blend of plant-based polyols and diethylene glycol, trimethylolpropane, a blend of plant-based polyols and pentaerythritol , one or more of the blends of plant-based polyols and 1,4-butanediol.

Further, crosslinking agents include liquid MDI, hydrogenated MDI, TDI, trimethylolethane, polypropylene glycol glycidyl ether, organic peroxides, such as dicumyl peroxide (DCP), di-tert-butyl peroxide (DTBP), 2,5-dimethyl-2,5-di-tert-butylperoxyhexane or 2-ethyl-4-methylimidazole, 2-phenylimidazole, 2-isopropylimidazole, hexahydro One or more of phthalic anhydride, triethylenetetramine, dimethylaminopropylamine, diethylaminopropylamine, etc.

Further, the chain extender includes difunctional acid derivatives, isocyanates, acid anhydrides and epoxides, etc., which can be 1,4-butanediol, 1,6-hexanediol, diethylene glycol (DEG), One or more of glycerin, trimethylolpropane, triethylene glycol, neopentyl glycol (NPG), and sorbitol.

Further, the polyester catalyst is an aluminum-based catalyst or an enzyme catalyst, such as triethylaluminum or triisopropoxyaluminum, or a silk yeast enzyme, etc.;

Further, the foam stabilizer is silicone oil.

Compared with the prior art, the beneficial effects of the present invention are reflected in:

1. The fabric layer adopts pit strip concave-convex structure, in which the strip-shaped convex part is woven with anti-fouling yarn, which has a good anti-fouling effect and reduces the number of times of cleaning for the wearer. It not only provides convenience for the wearer, but also prolongs the life of the insole. Service life and function cycle; the strip-shaped concave part is woven with temperature-regulating fiber, which has a good temperature-regulating effect.

2 The polyurethane layer of the insole has good resilience and is prepared by supercritical method. It has low density and light weight, which can further reduce the overall weight of the shoe and improve the comfort of the shoe.

3. During the wearing process, the strip-shaped convex part of the fabric layer is in contact with the bottom, and its anti-fouling effect prolongs the service life of the insole, reduces the difficulty and frequency of cleaning, and the temperature-regulating fiber is cellulose fiber, which also plays a role in temperature regulation. Water absorption effect, and the overall stripe effect, water absorption and anti-fouling properties of the insole fabric layer are compatible through the setting of the concave-convex strip structure, which improves the comfort of the insole;

4. Chitosan is used as the temperature-regulating yarn microcapsule wall material of the fabric layer, which has a certain antibacterial effect and improves the health care of the insole;

5. The adjustable protrusions and adjustable pipelines on the upper surface of the insole can make the built-in flowing liquid flow continuously with the human body to massage the soles of the feet, and the massage method is water rolling, which can relieve effect.

Description of drawings

Fig. 1 is a schematic diagram of the structure of an insole according to Embodiment 1 of the present invention;

Fig. 2 is a schematic cross-sectional view of a fabric layer according to an embodiment of the present invention;

3 is a schematic diagram of the structure of a polyurethane layer according to Example 2 of an embodiment of the present invention;

Fig. 4 is a schematic diagram of the structure of the polyester layer according to Example 3 of the embodiment of the present invention;

Fig. 5 is a flowchart of a method for preparing an insole according to the second embodiment of the present invention.

Fabric layer 1, strip-shaped protrusions 10, strip-shaped depressions 11, polyurethane layer 2, round protrusions 20, round recesses 21, grooves 22, adjustable protrusions 23, and adjustable pipelines 24.

Detailed ways

The present invention will be described in further detail below through the embodiments and accompanying drawings.

Implementation Mode 1

Example 1

This embodiment provides a high resilience ultra-light insole, as shown in Figure 1 and Figure 2, including a fabric layer 1 and a polyurethane layer 2, the upper surface of the fabric layer 1 is a concave-convex strip structure, including interval cycle settings The strip-shaped protrusions 10 and strip-shaped depressions 11, wherein the strip-shaped protrusions 10 are woven from antifouling yarns, the width of a single strip-shaped protrusion 10 is 0.5-1.5mm, and the strip-shaped protrusions The total area of the part 10 does not exceed 30% of the area of the fabric layer 1; the strip-shaped concave part 11 is woven from temperature-regulating yarn, and the width of a single strip-shaped concave part 11 is 0.8-2mm; the strip-shaped convex part 10 and The specifications of the strip-shaped depressions 11 are set in an optimal way, which can ensure that when wearing, the strip-shaped protrusions 10 are in contact with the soles of the human body to play an anti-fouling effect, and the strip-shaped depressions 11 account for more, which can To ensure the overall temperature regulation effect on the fabric layer 1; when the base material of the temperature regulating yarn is cellulose fiber, it also has better water absorption, so that the water absorption of the fabric layer 1 is better.

The polyurethane layer 2 is prepared by a supercritical method, and its density is 0.03-0.05g/m ² ;

The fabric layer 1 and the polyurethane layer 2 are compounded by dot-like glue; the distribution of dot-like glue is divided into a peripheral area and a central area, wherein the peripheral area refers to an annular area area 2 cm away from the edge of the insole, in which The central area is the central area. In order to reduce the comfort problem caused by point-shaped adhesive and prevent it from affecting the water absorption, the distance between adjacent adhesive points in the central area is not greater than 2mm. At the same time, in order to ensure the fastness of the adhesive, The distance between adjacent adhesive spots within a width of 1cm is 1-2mm;

In order to ensure the air permeability of the entire insole, the polyurethane layer can also be provided with a number of air holes penetrating up and down.

Example 2

In order to further increase the wearing comfort of the insole, this embodiment increases the massage function of the insole on the basis of embodiment 1. As shown in Figure 3, a circular protrusion 20 is provided on the upper surface of the insole, and the circular The protrusion 20 is integrally formed with the polyurethane layer 2, and its diameter is 0.5-1cm, and its height is 0.5-0.8cm. The position of the circular protrusion 20 corresponds to the position of the forefoot or the acupuncture point of the foot to play a massage effect; The fabric layer 10 can have two kinds of settings, one is that the positions of the fabric layer 10 corresponding to the circular protrusions 20 are holes, and the holes are used to accommodate these circular protrusions 20, and the surface of the circular protrusions is covered with a single layer and Fabric layer 10 is the fabric of the same material, to ensure that the surface layer in contact with the soles of the feet is a fabric layer; another setting of the fabric layer 10 is: the fabric layer 10 adopts a textile fabric with good elasticity, such as weft knitting or adding elastic such as spandex The textile fabric of the yarn, its one-piece covering surface of the polyurethane layer 2.

Example 3

This embodiment, as a modification of Embodiment 2, is another insole with massage function. The massage method is carried out through flowing liquid, and it is used for soothing massage when the feet are in motion. Its structure is shown in Figure 4. Polyurethane A circular recess 21 with a diameter of 0.5-1 cm is provided on the side where the layer 2 is attached to the fabric layer 1, and a groove 22 is arranged between each adjacent circular recess 21. The top of the circular recess 21 is glued to match its diameter and has a height of 0.5-0.8cm adjustable protrusion 23, the upper part of the groove 22 is provided with an adjustable pipeline 24, the adjustable pipeline 24 is connected to the adjacent adjustable protrusion 23, the adjustable protrusion 23 and the adjustable pipeline 24 each includes an elastic shell and a flowing liquid built in the elastic shell, and the liquid of each adjacent adjustable protrusion 23 can flow through the adjustable pipeline 24. This embodiment gives an example of a circular recess 21 Arrangement method, that is, two rows at the front and back are arranged, and several rows are not arranged. The circular concave part 21 of the front row corresponds to the position of the sole of the foot, and the circular concave part 21 of the rear row corresponds to the position of the center of the foot. Adjacent to the circular recess, the adjustable protrusion 23 is arranged in the circular recess 21, the adjustable pipeline 24 is arranged in the groove 22, and the filling amount of the flowing liquid is inside the adjustable protrusion 23 and the adjustable pipeline 24 One-half to two-thirds of its volume and not filled with air.

When walking, along with the bending of the soles of the feet, the flowing liquid flows back and forth in the adjustable protrusions 23 of the front and rear rows, thereby performing a soothing massage on the bottom. It should be noted here that in order to ensure a better massage effect, when the adjustable protrusions When the liquid in 23 is full, its height is greater than the depth of circular recess 21, that is, it will appear on the surface of the insole in a convex shape. It will be slightly higher if it is flat. The setting of the groove 22 and the adjustable pipeline 24 is the same as the setting of the above-mentioned circular recess 21 and adjustable protrusion 23. At the same time, the depth of the circular recess 21 in the front and rear rows can be consistent or inconsistent. , its effect is to ensure that when the person walks, along with the action changes of the soles, a series of actions such as lifting of the rear heel, suspension of the foot and landing of the rear heel, the liquid in the adjustable protrusions 23 of the front and rear rows can flow forward and backward, and the soles of the feet will not be affected. Produces a massage effect. The number and specific positions of the circular recesses or adjustable protrusions can be set as required.

In this embodiment, the flowing liquid can be water; the material of the elastic shell is any one of silica gel, rubber, PVC, and the setting of the fabric layer 1 can be 4 in the adjustable protrusion 23 and the adjustable pipeline 2 The position is hollowed out, and a heat-insulating fabric layer is arranged on the upper surface of the adjustable protrusion 23 and the adjustable pipeline 2 to prevent the influence of the temperature of the flowing liquid on the temperature of the feet; Layer 1 has the same material.

In the above embodiment, the fabric layer 1 is a knitted braided layer, which forms a concave-convex strip structure through tucking of loops or computer jacquard; or the fabric layer 1 is a woven knitted layer, which forms a concave-convex strip structure through computer jacquard; or The yarn diameter of the strip-shaped convex part 10 of the fabric layer 1 is 2-3 times of the yarn diameter of the strip-shaped concave part 11, and the concave-convex strip structure can be linear or wavy, broken line, etc., and its setting can be The front and rear directions of the insole can be extended, or along the left and right directions of the insole.

In the above-mentioned embodiments, the base material of the antifouling yarn is any one of cotton yarn, viscose or polyester, its surface is sprayed or impregnated or coated with an antifouling finishing agent, and the antifouling finishing agent is a silicone finishing agent , It can also be a fluorine finishing agent.

Implementation mode two

As a second aspect of the present invention, a method for preparing the above-mentioned high-resilience ultra-light insole is proposed, as shown in Figure 5, comprising the following steps:

S1 preparation of anti-fouling yarn: applying the anti-fouling finishing agent to the yarn by spraying, dipping or padding, and performing anti-fouling finishing on the yarn;

Preparation of S2 temperature-regulating yarn: select chitosan as the microcapsule wall, n-eicosane as the microcapsule core, add the mass ratio of the capsule core material to the capsule wall material at a ratio of 1:1-4, and then Add water to emulsify and disperse to obtain an oil-in-water emulsion, then carry out complex coagulation reaction on the obtained oil-in-water emulsion, add a curing agent and stir to obtain microcapsules; disperse the microcapsules in the dispersant, and mix with the spinning stock solution Afterwards, spinning is carried out to obtain temperature-adjusted yarns;

S3 Weaving of fabric layer 1: knitting the yarn into a fabric layer with a concave-convex strip structure on the surface, wherein the strip-shaped raised portion 10 is woven with anti-fouling yarn, and the width of a single strip-shaped raised portion 10 is 0.5-1.5 mm, and the area of the strip-shaped convex part does not exceed 30% of the area of the fabric layer; the strip-shaped concave part 11 is woven with temperature-regulating yarn, and the width of a single strip-shaped concave part 11 is 0.8-2mm;

S4 Preparation of polyurethane layer 2: Add polyurethane resin material and cross-linking agent into the reactor at a ratio of 1:2-3 for stirring and blending, and stir for 60-300 seconds at 30-65°C; then pour into the reactor Add chain extender, polyester catalyst, foaming catalyst, foam stabilizer, foaming agent, stir at 20-80°C for 0.5-4 hours; ℃, foaming at a pressure of 4-16MPa, foaming for 2-20 minutes, extruding to obtain a polyurethane foam material, and placing the material in an insole mold to obtain an insole; the density of the polyurethane foam material: 0.02-0.04g/ m2; water absorption rate>7; permanent compression deformation rate<7%.

S5 Composite of fabric layer 1 and polyurethane layer 2: compound the lower surface of fabric layer 1 with polyurethane layer 2 through point-like gluing. The area does not exceed one-third of the insole area.

In step S1 of the preparation method, the antifouling finishing agent is silicone, and its configuration components include: silicone oil, polyol, crosslinking agent, pH regulator, water, first add the pH regulator to the water to a weak acid, and then add Polyols and silicone oils are then added to the cross-linking agent and stirred to obtain the finishing agent. The finishing agent is added with a cross-linking agent, so it is sprayed on the surface of the yarn and can be cross-linked with the yarn to obtain an anti-fouling yarn, and can also be dipped or padded to obtain an anti-fouling yarn.

In the step S2 of the preparation method, the materials that can be selected for the microcapsule wall material of the temperature-regulating yarn include natural polymer materials, such as gelatin, gum arabic, shellac, shellac, starch, dextrin, wax, turpentine, seaweed Sodium phosphate, corn protein, etc., or the combination of the two or more natural polymer materials, it is non-toxic, has good stability, and is good for molding; in addition, the wall material can also be polyethylene, polystyrene, etc. Ethylene, polybutadiene, polypropylene, polyether, polyurea, polyethylene glycol, polyvinyl alcohol, polyamide, polyacrylamide, polyurethane, polymethylmethacrylate, polyvinylpyrrolidone, epoxy resin, polyvinylpyrrolidone Fully synthetic polymer materials such as siloxane have good film-forming properties and good chemical stability; chitosan in this embodiment has certain antibacterial properties, so it is the preferred material for microcapsule wall materials in this embodiment; microcapsules The core material can also be n-hexadecane to n-eicosane, or phase change materials such as paraffin, and the spinning stock solution can be acetate fiber, cellulose fiber and the like.

In the step S3 of the preparation method, the fabric layer 1 has a variety of knitting methods, for example, it can be a knitted braided layer, which forms a concave-convex strip structure through tucking of loops or computer jacquard; or the fabric layer 1 is a woven braided layer , which forms a concave-convex strip structure by computer jacquard; or the yarn diameter of the strip-shaped convex part 10 of the fabric layer 1 is 2-3 times the yarn diameter of the strip-shaped concave part 11.

In step S4 of the preparation method, the mass ratio of each substance added is: 28-60 parts of cross-linking agent, 0.5-4 parts of chain extender, 0.1-0.5 parts of polyester catalyst, 0.5-1.5 parts of foaming catalyst, uniform foaming 0.5-4 parts of foaming agent, 2-6 parts of foaming agent, and the rest are polyurethane resin materials, including blending of plant-based polyol and polyethylene glycol, blending of plant-based polyol and diethylene glycol, trihydroxy One or more compositions of methylpropane, blending of plant-based polyols and pentaerythritol, blending of plant-based polyols and 1,4-butanediol; crosslinking agents include liquid MDI, hydrogenated MDI, TDI, trihydroxy Methylethane, polypropylene glycol glycidyl ether, organic peroxides such as dicumyl peroxide (DCP, di-tert-butyl peroxide (DTBP, 2,5-dimethyl-2,5-di-tert-butyl Hexyl peroxide or 2-ethyl-4 methylimidazole, 2-phenylimidazole, 2-isopropylimidazole, hexahydrophthalic anhydride, triethylenetetramine, dimethylaminopropylamine, di One or more compositions in ethylaminopropylamine, etc.; the chain extender includes bifunctional acid derivatives, isocyanates, acid anhydrides and epoxides, etc., which can be 1,4-butanediol, 1,6- One or more of hexanediol, diethylene glycol (DEG), glycerin, trimethylolpropane, triethylene glycol, neopentyl glycol (NPG), and sorbitol; the polyester catalyst is aluminum Catalysts or enzyme catalysts, such as triethylaluminum or triisopropoxyaluminum, or Trichotillomyces enzymes, etc.; the foam stabilizer is organosilicon oil.

In step S5 of the preparation method, the distribution of point-like glue is divided into a peripheral area and a central area, wherein the peripheral area refers to an annular area area 2 cm away from the edge of the insole, and the area in the ring is the central area, which is to reduce the point-shaped adhesive. For the comfort problem caused by glue and to prevent it from affecting the water absorption, the distance between the adjacent adhesive points in the central area is not more than 2mm. The distance between the shapes is 1-2mm.

It should be noted that in the description of the present invention, the orientations or positional relationships indicated by the terms "up", "down", "front", "back", "left" and "right" are based on the orientations or positional relationships shown in the drawings, It is only for the convenience and simplification of the description of the present invention, but does not indicate or imply that the shown devices or elements must have a specific orientation or positional relationship, so it should not be construed as a limitation of the present invention.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic principles of the present invention. The present invention can be implemented in other specific forms without any specific features. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims

A high-resilience ultra-light insole, characterized in that: it includes a fabric layer (1) and a polyurethane layer (2), the upper surface of the fabric layer (1) is a concave-convex strip structure, including strip-shaped protrusions arranged periodically at intervals. a raised portion (10) and a strip-shaped concave portion (11), wherein the strip-shaped convex portion (10) is woven from antifouling yarn, and the width of a single strip-shaped convex portion (10) is 0.5-1.5mm, and The total area of the strip-shaped protrusions (10) does not exceed 30% of the area of the fabric layer (1); the strip-shaped depressions (11) are woven from temperature-regulating yarns, and the width of a single strip-shaped depression (11) is 0.8-2mm;

The polyurethane layer (2) is prepared by a supercritical method, and its density is 0.03-0.05g/m 2 ;

The fabric layer (1) and the polyurethane layer (2) are compounded by point-like adhesive.
The high-resilience ultra-light insole according to claim 1, characterized in that: the upper surface of the insole is provided with a circular protrusion (20), and the circular protrusion (20) is integrally formed with the polyurethane layer (2). If the diameter is 0.5-1cm and the height is 0.5-0.8cm, the position of the circular protrusion (20) corresponds to the forefoot part to play a massage effect.
The high-resilience ultra-light insole according to claim 1, characterized in that: the side where the polyurethane layer (2) is bonded to the fabric layer (1) has a circular concave portion (21) with a diameter of 0.5-1 cm, and each adjacent circle Groove (22) is provided between the shaped recesses (21), the top of the circular recess (21) is bonded with its diameter matching and height is the adjustable projection (23) of 0.5-0.8cm, the groove (22) An adjustable pipeline (24) is arranged on the upper part, and the adjustable pipeline (24) is connected to the adjacent adjustable protrusion (23). Both the adjustable protrusion (23) and the adjustable pipeline (24) include an elastic shell body and the flowing liquid built in the elastic shell, the liquid of each adjacent adjustable protrusion (23) can flow through the adjustable pipeline (24), and the filling amount of the flowing liquid is the adjustable protrusion (23) and the adjustable One-half to two-thirds of the internal volume of the adjustable pipeline (24).
The high-resilience ultra-light insole according to claim 1, characterized in that: the fabric layer (1) is a knitted braided layer, which forms a concave-convex strip structure through tucking of loops or computer jacquard.
The high-resilience ultra-light insole according to claim 1, characterized in that: the fabric layer (1) is a woven braided layer, which forms a concave-convex strip structure through computer jacquard.
The high-resilience ultra-light insole according to claim 1, characterized in that: the yarn diameter of the strip-shaped protrusion (10) of the fabric layer (1) is 2-2- of the yarn diameter of the strip-shaped depression (11) 3 times.
The high-resilience ultra-light insole according to claim 3 is characterized in that: the material of the elastic shell is any one of silica gel, rubber, and PVC, and a heat-insulating fabric layer is arranged on it.
The high resilience ultra-light insole according to claim 3, wherein the flowing liquid is water.
The high-resilience ultra-light insole according to any one of claims 1-8, characterized in that: the base material of the anti-fouling yarn is any one of cotton yarn, viscose or polyester, and its surface is coated with an anti-fouling finishing agent .
A method for preparing the high-resilience ultra-light insole according to any one of claims 1-9, characterized in that: comprising the following steps:

S1 prepares the antifouling yarn, adopts the mode of spraying, dipping or padding, arranges the antifouling finishing agent on the yarn, and carries out antifouling finishing to it;

Preparation of S2 temperature-regulating yarn: choose chitosan as the microcapsule wall, n-eicosane as the microcapsule core, and add the mass ratio of the capsule core material to the capsule wall material at a ratio of 1: (1-4) , and then add water for emulsification and dispersion to obtain an oil-in-water emulsion, and then carry out a complex coagulation reaction on the obtained oil-in-water emulsion, add a curing agent and stir to obtain microcapsules; disperse the microcapsules in the dispersant, and spin Spinning after mixing the dope to obtain temperature-adjusted yarn;

Weaving of S3 fabric layer (1): the yarn is woven into a fabric layer with a concave-convex strip structure on the surface, wherein the strip-shaped raised portion (10) is woven with antifouling yarn, and a single strip-shaped raised portion (10) The width of the strip is 0.5-1.5mm, and the area of the strip-shaped convex part does not exceed 30% of the area of the fabric layer; the strip-shaped concave part (11) is woven with temperature-regulating yarn, and the width of a single strip-shaped concave part (11) is 0.8 -2mm;

Preparation of S4 polyurethane layer (2): Add polyurethane resin material and cross-linking agent into the reactor at a ratio of 1:2.5 for stirring and blending, and stir for 60-300 seconds at 30-65°C; Add chain extender, polyester catalyst, foaming catalyst, foam stabilizer, foaming agent, stir at 20-80°C for 0.5-4 hours; ℃, foaming at a pressure of 4-16 MPa, foaming for 2-20 minutes, extruding to obtain a polyurethane foam material, and placing the material in an insole mold to obtain an insole;

S5 Compounding of fabric layer (1) and polyurethane layer (2): Laminate the lower surface of fabric layer (1) with polyurethane layer (2) by dot-like gluing, wherein the area of a single adhesive dot does not exceed 0.5mm 2. The total area of the total adhesive dots does not exceed one-third of the insole area.