Acupuncture point health-care functional sock based on graphene colloid and preparation method of acupuncture point health-care functional sock

Abstract

The invention discloses a graphene colloid-based acupoint health-care functional sock and a preparation method thereof, and relates to the technical field of functional textile products. The preparation method comprises the following steps: S1, carrying out dry mixing on graphene and polymer powder according to a ratio of 1.2: 1, then dispersing the mixture in a 8-12% polymer solution (PU or PVDF) in a gradient manner, and carrying out vacuum curing to obtain a functional colloid; s2, weaving the sock body and forming a reinforcing and supporting knitted structure in an arch area; s3, the colloid is applied to the positions corresponding to the acupuncture points of the sock sole in a point-shaped or sheet-shaped mode; and S4, heating or ultraviolet curing. The obtained functional sock integrates a far infrared acupuncture point health care function realized by the graphene colloid and a foot arch physical support function realized by the special knitted structure. Through an innovative colloid preparation and application process, the far infrared acupuncture point health care function of the graphene colloid and the physical support pressure reduction function of a specific knitted structure in an arch area are organically combined, and the composite health care effect of nourishing inside and protecting outside is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of functional textile products, in particular to a composite functional sock with foot health care and physical support functions, and especially to an acupoint health care functional sock based on graphene colloid and a preparation method thereof. BACKGROUND

[0002] With the increasing pursuit of healthy life, health-care textiles have attracted widespread attention. The feet are distributed with numerous acupoints, and stimulating these acupoints can achieve the health care effect of regulating body functions and relieving fatigue. In the prior art, there are products that fix traditional Chinese medicine bags, magnet stones, etc. on the sock bottom to stimulate acupoints, but there are problems such as single function, poor fixation, poor body feeling, and poor washing resistance. At the same time, in view of foot arch fatigue, the common method is to provide support through insoles, but the cooperation of insoles and socks often brings discomfort. Graphene is applied to textiles due to its excellent far infrared emission performance, but how to stably, durably and accurately apply it to the local part of the sock and organically combine it with the structure of the sock to provide composite health care functions is still a technical problem to be solved. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the deficiencies in the prior art and provide an acupoint health care functional sock based on graphene colloid and a preparation method thereof. The functional sock combines far infrared materials with foot structure support design, and through a specific preparation process, realizes the accurate and firm application of functional colloid at the acupoints of the sock bottom, and provides durable and comfortable acupoint health care and foot arch decompression double functions.

[0004] The technical solution adopted by the present application to solve the technical problem is a preparation method of an acupoint health care functional sock based on graphene colloid, comprising the following steps: S1, functional colloid preparation: S1.1, premixing: dry premixing graphene powder and high molecular powder at a mass ratio of 1.2:1 to obtain premix powder; S1.2, gradient dispersion gel preparation: adding the premix powder into a high molecular solution with a concentration of 8%-12%, and dispersing by using a stepwise gradient stirring; first, wetting by stirring at a low speed of 500-800 rpm for 3-8 minutes, then dispersing by stirring at a medium speed of 1500-2500 rpm for 5-15 minutes, and finally high-speed shearing at a speed of 4000-8000 rpm for 2-5 minutes to form a preliminary mixed colloid; the high molecular powder is PU or PVDF; S1.3, vacuum curing: placing the preliminary mixed colloid in an environment with a vacuum degree not less than-0.06 MPa for debubbling, and standing for curing at 25-35℃ for 1-4 hours to obtain a uniform and stable functional colloid; S2, Sock Body Weaving: The sock body is formed by knitting with a knitting machine, and in the arch area of ​​the sock body, a knitted structure with enhanced support is formed by varying the loop density and / or by using elastic yarn interlacing. S3. Colloid application: The functional colloid obtained in step S1 is applied to the inner insole of the sock obtained in step S2 in the form of dots or sheets through dispensing or printing processes, corresponding to the acupoints on the sole of the foot. S4. Curing and shaping: The socks to which the functional colloid has been applied are subjected to heat curing or ultraviolet light curing treatment to make the functional colloid firmly adhere to the socks.

[0005] Preferably, in step S1.1, before the dry premixing, a step of surface modification of the graphene powder is further included: atomizing and spraying 0.5%-3% by weight of a silane coupling agent onto the graphene powder and mixing it. This step can effectively improve the dispersibility of graphene.

[0006] A type of acupoint health care sock based on graphene colloid, prepared by the above-described method, comprises: a sock body, wherein the arch region of the sock body has a reinforced support knitted structure formed by varying the coil density and / or by interlacing elastic yarns; and a functional colloid layer fixed to the inner sole of the sock body corresponding to acupoints on the sole of the foot; the functional colloid layer is formed by dispersing graphene powder and polymer powder at a mass ratio of 1.2:1 in a polymer solution with a concentration of 8%-12%, wherein the polymer is PU or PVDF.

[0007] Preferably, the reinforcing knitted structure is a double-sided jacquard structure based on rib knitting variations or a warp-knitted weft-inserted structure.

[0008] Preferably, the functional colloidal layer exists in the form of multiple independent dot-like bodies or continuous sheet-like bodies.

[0009] More preferably, the diameter of the dot-like body is 3-8 mm, the center-to-center distance between adjacent dot-like bodies is 10-20 mm, and the area of ​​the sheet-like body is 1.5-3 cm².

[0010] Preferably, the position of the inner insole of the sock corresponding to the acupoints on the sole of the foot includes the Yongquan acupoint area and / or the Taichong acupoint area.

[0011] The beneficial effects of this invention are: 1. This invention organically combines the far-infrared acupoint health care function of graphene colloid with the physical support and pressure relief function of a specific knitted structure in the arch area of ​​the foot, achieving a combined health care effect of "internal nourishment and external protection".

[0012] 2. By employing a synergistic colloidal preparation process involving dry premixing, gradient dispersion, and vacuum curing, the problems of graphene's tendency to agglomerate, uneven dispersion, and poor stability in localized applications are solved. The resulting colloid is uniform and stable, facilitating subsequent precision processing. This process ensures the strong bond and washability of the colloid to the sock body.

[0013] 3. The colloid is precisely applied to key acupoints on the sole of the foot (such as Yongquan and Taichong acupoints) in a specific form (dots / sheets) through dispensing or printing processes, providing direct stimulation. The dotted or sheet-like design ensures both contact area and breathability, enhancing wearing comfort.

[0014] 4. The reinforced support knitted structure in the arch area provides flexible and dynamic support for the arch of the foot without adding extra rigid materials, effectively relieving foot fatigue through changes in the structure and / or the use of elastic yarns. Detailed Implementation

[0016] Example 1

[0017] A type of acupoint health care sock based on graphene colloid and its preparation method: S1.1 Premixing: Weigh 12g of graphene powder and 10g of PU powder, place them in a high-speed mixer, and dry mix at 400 rpm for 15 minutes to obtain premixed powder.

[0018] S1.2 Gradient dispersion preparation: Prepare 220g of a 10% concentration PU / DMF solution. Add all the premixed powder to the solution and first wet it by stirring at a low speed of 600 rpm for 5 minutes; then increase the speed to 2000 rpm and stir at a medium speed for 10 minutes; finally switch to a high-shear homogenizer and shear at a high speed of 6000 rpm for 3 minutes to obtain the initial mixed colloid.

[0019] S1.3 Vacuum curing: The initial mixed colloid was transferred to a vacuum tank and allowed to stand for 30 minutes under a vacuum of -0.08 MPa to remove bubbles. Then it was cured in a constant temperature oven at 30℃ for 2 hours to obtain a functional colloid with a viscosity of approximately 10,000 mPa·s.

[0020] S2. Sock Body Weaving: Using a computerized knitting sock machine, cotton / spandex core-spun yarn is used to weave a regular sock body structure, and the arch area is changed to a double-sided jacquard structure based on rib knitting variation to form an arch area with elasticity and support.

[0021] S3. Glue Application: Using a CNC dispensing machine, the functional glue is precisely applied to the area corresponding to the Yongquan acupoint on the left and right feet in a hemispherical dot matrix with a diameter of 5mm on the insole of the sock.

[0022] S4. Curing and Shaping: Place the socks with the glue applied in an 80℃ hot air oven for 3 minutes to cure the glue completely and firmly adhere it to the socks.

[0023] The resulting functional socks have a reinforced support knitted structure in the arch area formed by varying the coil density, and a functional colloidal layer formed by the above method is fixed at the Yongquan acupoint on the insole.

[0024] Example 2

[0025] A type of acupoint health care sock based on graphene colloid and its preparation method: The difference from Example 1 is as follows: In S1.1, before premixing the graphene powder, its surface is modified: 0.12g (1%) of KH-550 silane coupling agent is atomized and sprayed onto 12g of graphene powder, and mixed for 10 minutes in a small high-speed mixer. Then, the modified graphene powder is dry-premixed with PVDF powder in proportion.

[0026] In S1.2, the polymer solution is a 10% PVDF / NMP solution.

[0027] In S2, the arch support structure is woven with a warp-knitted weft-inserted structure.

[0028] In S3, the colloid is applied to the area corresponding to the Taichong acupoint on the inner sole of the sock through a screen printing process in the form of an elliptical continuous sheet with an area of ​​approximately 2.5 cm².

[0029] In S4, curing is performed using a UV-LED light source with a wavelength of 365nm, which is irradiated for 15 seconds for UV curing.

[0030] The resulting functional socks have a reinforced support knitted structure in the arch area formed by interlacing elastic yarns (warp knitting with weft weft), and a sheet-like functional gel layer formed by the above method is fixed at the Taichong acupoint on the insole.

[0031] Example 3

[0032] A type of acupoint health care sock based on graphene colloid and its preparation method: S1. Preparation of functional colloids: Following step S1 of Example 1, colloids were prepared using a PU / DMF system.

[0033] S2. Sock Body Knitting: The sock body is knitted using a conventional sock machine. The arch area is formed with an elastic support structure by increasing the feeding ratio of spandex yarn and varying the coil density.

[0034] S3. Adhesive application: Using a dotting process, apply three 4mm diameter dots of adhesive to the Yongquan acupoint area on the inner sole of a single sock, with a center-to-center distance of approximately 15mm between the dots; and apply one 6mm diameter dot of adhesive to the Taichong acupoint area.

[0035] S4. Curing and shaping: Ultraviolet light curing is used.

[0036] The resulting functional socks have a reinforced support knitted structure in the arch area formed by varying the coil density and using elastic yarns interwoven, and multiple independent dotted functional colloid layers are fixed at the acupoints on the insole.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for preparing acupoint health care socks based on graphene colloids, characterized in that, Includes the following steps: S1. Preparation of functional colloids: S1.1 Premixing: Graphene powder and polymer powder are dry-mixed at a mass ratio of 1.2:1 to obtain premixed powder; S1.2 Gradient Dispersion Formulation: The premixed powder is added to a polymer solution with a concentration of 8%-12%, and dispersed using segmented gradient stirring; first, it is wetted by stirring at a low speed of 500-800 rpm for 3-8 minutes, then the stirring speed is increased to 1500-2500 rpm for 5-15 minutes for dispersion, and finally, it is sheared at a high speed of 4000-8000 rpm for 2-5 minutes to form a preliminary mixed colloid; the polymer powder is PU or PVDF; S1.3 Vacuum curing: The initial mixed colloid is placed in an environment with a vacuum degree of not less than -0.06 MPa for degassing, and then allowed to stand and cure at 25-35℃ for 1-4 hours to obtain a uniform and stable functional colloid. S2, Sock Body Weaving: The sock body is formed by knitting with a knitting machine, and in the arch area of ​​the sock body, a knitted structure with enhanced support is formed by varying the loop density and / or by using elastic yarn interlacing. S3. Colloid application: The functional colloid obtained in step S1 is applied to the inner insole of the sock obtained in step S2 in the form of dots or sheets through dispensing or printing processes, corresponding to the acupoints on the sole of the foot. S4. Curing and shaping: The socks to which the functional colloid has been applied are subjected to heat curing or ultraviolet light curing treatment to make the functional colloid firmly adhere to the socks.

2. The preparation method according to claim 1, characterized in that, In step S1.1, before the dry premixing, a step of surface modification of graphene powder is also included: 0.5%-3% of silane coupling agent by mass is atomized and sprayed onto the graphene powder, and then mixed.

3. A type of acupoint health care sock based on graphene colloid, prepared by the method described in claim 1 or 2, characterized in that, include: The sock body has a reinforced support knitted structure in the arch area formed by varying the coil density and / or by interlacing elastic yarns; and a functional colloidal layer fixed to the insole of the sock corresponding to acupoints on the sole of the foot; the functional colloidal layer is formed by dispersing graphene powder and polymer powder in a mass ratio of 1.2:1 in a polymer solution with a concentration of 8%-12%, wherein the polymer is PU or PVDF.

4. The functional socks according to claim 3, characterized in that, The reinforced knitted structure is a double-sided jacquard structure or a warp-knitted weft-inserted structure based on variations in rib knit.

5. The functional socks according to claim 3, characterized in that, The functional colloidal layer exists in the form of multiple independent dot-like bodies or continuous sheet-like bodies.

6. The functional socks according to claim 5, characterized in that, The diameter of the dot-like bodies is 3-8 mm, and the center-to-center distance between adjacent dot-like bodies is 10-20 mm; the area of ​​the sheet-like bodies is 1.5-3 cm².

7. The functional socks according to claim 3, characterized in that, The positions of the inner insole of the sock corresponding to acupoints on the sole of the foot include the Yongquan acupoint area and / or the Taichong acupoint area.