Cool insole fabric

Abstract

The invention discloses a cool insole fabric. The cool insole fabric comprises a short fiber mixed layer and a yarn interwoven layer which are compounded, the short fiber mixed layer comprises flax short fibers and graphite short fibers; polyester staple fibers treated by a cool feeling finishing agent; a profiled fiber; the heat conductivity coefficient of the graphite short fiber is greater than or equal to 0.5 W / m.K; the section of the profiled fiber is cross-shaped or Y-shaped; the yarn interwoven layer comprises linen yarns and polyester yarns treated by a cool feeling finishing agent; regenerating the polyester yarns; the mildew-proof grade of the flax yarn is not less than 1 grade; the content of recycled polyester in the regenerated polyester yarn is greater than or equal to 85%. The polyester staple fibers treated by the cool feeling finishing agent are used in the staple fiber mixed layer, and the polyester yarns treated by the cool feeling finishing agent are used in the yarn interwoven layer, so that the insole fabric has a contact cool feeling, and the wearing comfort is improved. The recycled polyester is used, so that the environment-friendly property is realized. And the linen fiber enables the fabric to have a mildew-proof effect. And the used graphite fiber improves the moisture guiding effect.

Description

Technical Field

[0001] This invention relates to a cooling insole fabric, belonging to the technical field of insole fabrics. Background Technology

[0002] Traditional insole fabrics are made by bonding stitched nonwoven fabric (commonly known as Lixin fabric) to needle-punched fabric with adhesive. This type of fabric has good warmth retention and a certain degree of stiffness and softness. However, existing insole fabrics have shortcomings in terms of heat dissipation, moisture absorption, and mildew resistance. How to produce an insole fabric with good heat dissipation, moisture absorption, and mildew resistance has become a problem to be solved. Summary of the Invention

[0003] The purpose of this invention is to provide a cooling insole fabric, which uses polyester staple fibers and polyester yarn that have been treated with a cooling effect to give it a cooling sensation upon contact.

[0004] To solve the above-mentioned technical problems, the objective of this invention is achieved as follows: The present invention relates to a cooling insole fabric, comprising a composite short fiber blend layer and a yarn interweaving layer; The short fiber hybrid layer comprises: Flax staple fiber 20-40%; Graphite short fibers 5-15%; 30-50% of polyester staple fiber was treated with a cooling finishing agent; 10-20% irregularly shaped fibers; The graphite short fibers have a length of 1-5 mm and a thermal conductivity ≥0.5 W / m·K; the shaped fibers have a cross-shaped or Y-shaped cross-section and a specific surface area ≥3 m². 2 / g; The yarn interlacing layer includes: Linen yarn 40-60%; 25-40% of the polyester yarn was treated with a cooling finishing agent; Recycled polyester yarn 15-30%; The fineness of the flax yarn is 20-60 English count, and the mildew resistance level is ≥1; the recycled polyester yarn contains ≥85% recycled polyester.

[0005] Based on the above solution and as a preferred embodiment of the above solution: the cooling finishing agent comprises the following components by mass percentage: Xylitol 10-25%; Menthol microcapsules 5-15%; Acrylic adhesives 3-8%; The remainder is deionized water; The menthol microcapsules have a particle size of 10-50 µm and the wall material is a gelatin-gum arabic composite.

[0006] Based on the above scheme and as a preferred option, the sizing rate of the cooling finishing agent in polyester fiber and polyester yarn is 8-15%, the drying temperature is 120-150℃, and the drying time is 30-90 seconds.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the cross-sectional Y-shaped groove depth ratio of the shaped fiber is ≥1:3.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the mass ratio of the short fiber mixed layer to the yarn interlacing layer is (55-75):(25-45), and it is composited by a stitch-knitting process.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the mass ratio of flax staple fiber to graphite staple fiber is (2.5-4):1.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the surface of the insole fabric is pressed with a honeycomb-shaped embossed pattern, wherein the groove depth is 0.1-0.5mm and the pore diameter is 1-3mm.

[0011] Based on the above solution and as a preferred embodiment of the above solution: the midsole fabric is applied to the padding of sports shoes, sandals or cooling mats.

[0012] The beneficial effects of this invention are as follows: The cooling insole fabric involved in this invention uses polyester staple fibers treated with a cooling agent in the short fiber blending layer and polyester yarn treated with a cooling agent in the yarn interweaving layer, giving the insole fabric a cooling sensation upon contact and improving wearing comfort. The high thermal conductivity of graphite fibers and the irregularly shaped fibers facilitate air circulation in the nonwoven fabric layers, further enhancing the cooling sensation upon contact. The recycled polyester used makes it environmentally friendly, while the flax staple fibers and flax yarn provide anti-mildew effects. Detailed Implementation

[0013] The present invention will be further described below with reference to specific embodiments.

[0014] Example 1 This embodiment relates to a cooling insole fabric comprising a composite short fiber blend layer and a yarn interweaving layer; specifically, the composite is achieved through needle punching or hot pressing. The mass ratio of the short fiber blend layer to the yarn interweaving layer is 55:45, and the composite is achieved through needle punching and stitching. In this embodiment, the percentages of the short fiber blend layer, the yarn interweaving layer, and the cooling finishing agent are all mass percentages.

[0015] The short fiber hybrid layer comprises: Flax staple fiber 25%, 8% of graphite short fibers; 50% polyester staple fiber treated with cooling finishing agent; 17% irregular fibers.

[0016] The graphite short fibers have a fiber length of 2 mm and a thermal conductivity ≥ 0.5 W / m·K; the use of graphite short fibers can improve the thermal conductivity of the short fiber mixed layer. The mass ratio of flax short fibers to graphite short fibers is (2.5-4):1.

[0017] The cross-section of the irregularly shaped fiber is cross-shaped or Y-shaped, with a specific surface area ≥ 3 m². 2 / g; In this embodiment, a Y-shaped cross-section is selected. Y-shaped cross-section profiled fibers have good moisture-wicking properties.

[0018] Furthermore, the shaped fiber is a modified polyester fiber with a Y-shaped groove depth ratio of ≥1:3 in the cross-section. In this embodiment, it is 1:4.

[0019] The yarn interlacing layer includes: 50% linen yarn; 25% polyester yarn treated with a cooling finishing agent; 25% recycled polyester yarn.

[0020] The fineness of the flax yarn is 20-60 English count, and the mildew resistance level is ≥1. In this embodiment, the fineness of the flax yarn is 40 count, and the mildew resistance level is 1. The natural porous structure and phenolic substances of flax fiber give it a mildew resistance effect.

[0021] The recycled polyester yarn contains ≥85% recycled polyester. The recycled polyester fiber is obtained by melt extrusion of recycled polyester and conventional polyester; in this embodiment, the recycled polyester content is 90%.

[0022] The specific yarn interlacing layer is made of warp and weft yarns interlaced together. The weft yarn is linen yarn, and the warp yarn is polyester yarn treated with a cooling finishing agent and recycled polyester yarn.

[0023] Furthermore, the sizing rate of the cooling finishing agent in polyester fibers and polyester yarns is 8%, the drying temperature is 120℃, and the drying time is 90 seconds.

[0024] Furthermore, the cooling finishing agent comprises the following ingredients in weight percentages: Xylitol 10%; 15% menthol microcapsules; Acrylic adhesives 8%; The remainder is deionized water; The menthol microcapsules have a particle size of 10-50 µm, with an average of 30 µm, and the wall material is a gelatin-gum arabic composite.

[0025] Furthermore, the surface of the insole fabric is pressed with a honeycomb-shaped textured pattern, wherein the groove depth is 0.1-0.5mm and the pore diameter is 1-3mm. The honeycomb-shaped textured pattern provides an anti-slip effect. In this embodiment, the groove depth is 0.2mm and the pore diameter is 2mm.

[0026] The insole fabric is used as a lining for athletic shoes, sandals, or cooling mats.

[0027] Example 2 This embodiment relates to a cooling insole fabric comprising a composite short fiber blend layer and a yarn interweaving layer; specifically, they are composited using needle punching or hot pressing processes. The mass ratio of the short fiber blend layer to the yarn interweaving layer is 75:25, and they are composited using a needle punching and stitching process.

[0028] The short fiber hybrid layer comprises: Flax staple fiber 40%, Graphite short fibers 15%; 35% polyester staple fiber treated with cooling finishing agent; 10% irregular fibers.

[0029] The graphite short fibers have a fiber length of 5 mm and a thermal conductivity ≥ 0.5 W / m·K; the use of graphite short fibers can improve the thermal conductivity of the short fiber mixed layer. The mass ratio of flax short fibers to graphite short fibers is (2.5-4):1.

[0030] The cross-section of the irregularly shaped fiber is cross-shaped or Y-shaped, with a specific surface area ≥ 3 m². 2 / g; In this embodiment, a cross-shaped cross section is selected. The cross-shaped cross section of the irregular fiber has excellent moisture-wicking properties.

[0031] Furthermore, the shaped fiber is a modified polyester fiber with a Y-shaped groove depth ratio of ≥1:3 in the cross-section. In this embodiment, it is 1:3.

[0032] The yarn interlacing layer includes: 60% linen yarn; 20% of the polyester yarn was treated with a cooling finishing agent; 20% recycled polyester yarn.

[0033] The fineness of the flax yarn is 20-60 English count, and the mildew resistance level is ≥1. In this embodiment, the fineness of the flax yarn is 40 count, and the mildew resistance level is 1. The natural porous structure and phenolic substances of flax fiber give it a mildew resistance effect.

[0034] The recycled polyester yarn contains ≥85% recycled polyester. The recycled polyester yarn is obtained by melt extrusion of a mixture of recycled polyester and conventional polyester; in this embodiment, the recycled polyester content is 90%.

[0035] The specific yarn interlacing layer is made of warp and weft yarns interlaced together. The weft yarn is linen yarn, and the warp yarn is polyester yarn treated with a cooling finishing agent and recycled polyester yarn.

[0036] Furthermore, the sizing rate of the cooling finishing agent in polyester fibers and polyester yarns is 15%, the drying temperature is 150℃, and the drying time is 30 seconds.

[0037] Furthermore, the cooling finishing agent comprises the following ingredients in weight percentages: 25% xylitol; 5% menthol microcapsules; 3% acrylic adhesive; The remainder is deionized water; The menthol microcapsules have a particle size of 10-50 µm, an average particle size of 40 µm, and the wall material is a gelatin-gum arabic composite.

[0038] Furthermore, the surface of the insole fabric is embossed with a honeycomb-like textured pattern, wherein the groove depth is 0.1-0.5 mm and the pore diameter is 1-3 mm. The honeycomb-like textured pattern provides an anti-slip effect. In this embodiment, the groove depth is 0.5 mm and the pore diameter is 1 mm. Antibacterial tests were conducted on Examples 1 and 2 using GB / T 38017-2019. The inhibition rates against *Escherichia coli* were both higher than 95%, and against *Staphylococcus aureus*, both higher than 85%. The antifungal rating was greater than or equal to level 1. Contact cooling sensation tests were conducted using the differential thermal method (GB / T35263-2017), with results of 0.23 and 0.25 J / (cm²), respectively. 2 ·s), satisfying q max ≥0.15 J / (cm 2 The standard of ·s).

[0039] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A cooling insole fabric, characterized in that, It includes a composite short fiber blend layer and a yarn interlacing layer; The short fiber hybrid layer comprises: Flax staple fiber 20-40%, Graphite short fibers 5-15%; 30-50% of polyester staple fiber was treated with a cooling finishing agent; 10-20% irregularly shaped fibers; The graphite short fibers have a length of 1-5 mm and a thermal conductivity ≥0.5 W / m·K; the shaped fibers have a cross-shaped or Y-shaped cross-section and a specific surface area ≥3 m². 2 / g; The yarn interlacing layer includes: Linen yarn 40-60%; 25-40% of the polyester yarn was treated with a cooling finishing agent; Recycled polyester yarn 15-30%; The fineness of the flax yarn is 20-60 English count, and the mildew resistance level is ≥1; the recycled polyester yarn contains ≥85% recycled polyester.

2. The cooling insole fabric according to claim 1, characterized in that, The cooling finishing agent contains the following ingredients by weight percentage: Xylitol 10-25%; Menthol microcapsules 5-15%; Acrylic adhesives 3-8%; The remainder is deionized water; The menthol microcapsules have a particle size of 10-50 µm and the wall material is a gelatin-gum arabic composite.

3. The cooling insole fabric according to claim 1, characterized in that, In polyester fibers and polyester yarns, the sizing rate of the cooling finishing agent is 8-15%, the drying temperature is 120-150℃, and the drying time is 30-90 seconds.

4. The cooling insole fabric according to claim 1, characterized in that, The shaped fiber has a Y-shaped groove depth ratio of ≥1:3 in its cross-section.

5. The cooling insole fabric according to claim 1, characterized in that, The mass ratio of the short fiber mixed layer to the yarn interlacing layer is (55-75):(25-45), and they are composited by a stitch-knitting process.

6. The cooling insole fabric according to claim 1, characterized in that, The mass ratio of flax staple fiber to graphite staple fiber is (2.5-4):

1.

7. The cooling insole fabric according to claim 1, characterized in that, The surface of the insole fabric is pressed with a honeycomb-shaped textured pattern, wherein the groove depth is 0.1-0.5mm and the pore diameter is 1-3mm.

8. The cooling insole fabric according to claim 1, characterized in that, The insole fabric is used as a lining for athletic shoes, sandals, or cooling mats.