Preparation method and application of wool fabric with far infrared health-care coating

Abstract

The invention discloses a preparation method and application of a coating wool fabric with a far infrared health-care function. The preparation method comprises the following steps: dissolving waste wool by adopting an ionic liquid method to extract regenerated keratin powder, and doping the regenerated keratin powder, chitosan quaternary ammonium salt and functional particles into a membrane substrate material by adopting a blending modification method to prepare a functional coating material; and in combination with plasma pretreatment, coating the surface of the wool fabric with the functional coating material, and further performing crosslinking modification to obtain the far-infrared health-care functional coating wool fabric. According to the method, the problems that the wool fabric subjected to resin coating modification is hard in hand feeling and damaged in style are effectively solved, waste keratin resources are fully utilized, and secondary utilization of the resources is achieved; the electrical heating textile is prepared by using the excellent thermal conductivity and high conductivity of graphene and carbon nanotubes, and more far infrared rays are radiated along with the temperature rise of the graphene heating film.

Description

Technical Field

[0001] The invention relates to a processing method of a health-care functional textile, in particular to a preparation and processing method of an antibacterial and wrinkle-resistant, soft and breathable, far-infrared health-care functional coated wool fabric and a heating eye mask product thereof. Background Art

[0002] Wool fabrics are prone to felting, static electricity, pilling, and bacteria breeding, which seriously affect people's daily wear. Wool modification mainly removes the scale layer on the surface of wool fibers by etching or resin coating to improve the problems of wool being easy to felt, pilling, and bacteria breeding. Chemical, physical, biological and other treatment methods can be used to achieve the modification purpose. Compared with other methods, the resin modification method can not only coat the scales on the surface of wool, reduce the friction displacement between the scales and remove the slits between the feathers to achieve "machine washable" performance, but also give wool fabrics antibacterial, UV resistance, far-infrared emission and other functions. The method is simple and effective. Although the resin modification method is simple and effective, it still has the disadvantages of destroying the feel and style of wool fabrics and the coating falling off after washing. The resin is modified to design a soft, thin coating with good film-forming properties, stable adhesion, and combined with subtractive pretreatments such as plasma and ultraviolet irradiation to design wool fabrics with antibacterial and wrinkle-proof functions, as well as softness, thinness, and far-infrared health care functions. This can not only effectively avoid defects such as the hardening of the wool fabric's hand and the destruction of its style after resin modification, but also meet people's demand for corresponding functional textiles.

[0003] Electric heating textiles are functional textiles that use conductive materials as heating resistors. After they are combined with textiles in a certain way and connected to a power source, electrical energy is converted into thermal energy to achieve automatic and remote temperature control. Electric heating can directly generate heat inside the heated object, so the thermal efficiency is high and the heating speed is fast. In addition, during the electric heating process, less exhaust gas, residue and smoke are generated, which can keep the heated textiles clean. Therefore, electric heating textiles have achieved good development and progress in recent years. Although there are many choices of materials and production methods for electric heating textiles, there are still problems such as insufficient safety and relatively high costs.

[0004] In addition, far infrared radiation is an invisible electromagnetic wave in sunlight, and its wavelength ranges from 4.6μm to 1000μm. Far infrared has strong penetration and radiation power, and has significant temperature control effect and resonance effect. Far infrared can penetrate the epidermis, be absorbed by the human body and converted into internal energy, resonate with biological macromolecules, make biological cells at the highest vibration energy level, produce thermal effect and biological effect, stimulate cell activation and improve blood microcirculation. Therefore, far infrared is often used to promote human skin blood circulation, vasodilation, relieve fatigue, relieve arthritis, diabetic foot and other health care effects. Summary of the invention

[0005] The technical problem to be solved by the present invention is: to provide a preparation and processing method of an antibacterial and wrinkle-proof, soft and breathable, far-infrared health-care functional coated wool fabric and a heating eye mask product thereof, to design a functional coated wool fabric with long-lasting antibacterial properties, which is soft and thin, and to solve the problem that the fabric feels hard and has a poor texture after being modified by resin coating.

[0006] In order to solve the above problems, the present invention provides a preparation method of far-infrared health-care functional coated wool fabric, which comprises the following steps: using an ionic liquid method to dissolve waste wool to extract regenerated keratin powder, and using a blending modification method to mix the regenerated keratin powder with chitosan quaternary ammonium salt and functional particles into a membrane base material to prepare a functional coating material; and combining plasma pretreatment, coating the wool fabric surface with the functional coating material, and further cross-linking modification to obtain a far-infrared health-care functional coated wool fabric.

[0007] Preferably, the method for preparing the regenerated keratin powder comprises the following steps:

[0008] Step 1): firstly, using an impurity analyzer to remove impurities from the waste wool, then ultrasonically cleaning in a NaOH solution to remove lipids on the fiber surface, then rinsing the fiber with distilled water until the pH value of the rinsing liquid is less than or equal to 7, and drying and chopping to obtain pretreated wool;

[0009] Step 2): 1-allyl-3-methylimidazole chloride is heated and added to the pretreated wool, the two are fully mixed and contacted, and a keratin solution is obtained after reaction under a magnetic stirrer;

[0010] Step 3): adding distilled water to the keratin solution, filtering and dialysis the solution, and freeze-drying the solution to obtain regenerated keratin powder.

[0011] More preferably, in the step 2), the mass ratio of the pretreated wool to 1-allyl-3-methylimidazole chloride is 1:20; and the heating temperature is 130°C.

[0012] Preferably, the method for preparing the homemade chitosan quaternary ammonium salt comprises the following steps:

[0013] Step a): adding chitosan and 2,3-epoxypropyltrimethylammonium chloride to isopropanol, stirring in a water bath at 80° C. for reaction for 8 to 10 hours, then taking out, and cooling the reaction solution to obtain precipitation;

[0014] Step b): After the precipitate is completely precipitated, it is washed with ethanol and acetone in sequence, vacuum filtered to obtain a solid phase product, and finally dried to obtain chitosan quaternary ammonium salt.

[0015] More preferably, in step a), the ratio of isopropanol, chitosan and 2,3-epoxypropyltrimethylammonium chloride is 50 mL: 1 g: 4 g.

[0016] Preferably, the functional particles include at least one of multilayer graphene, carbon nanotubes, carbon fiber powder, MXene, one-dimensional silver nanowires, and nano-titanium oxide.

[0017] Preferably, the film base material includes at least one of water-based acrylic emulsion, water-based polyurethane emulsion, water-based phenolic resin dispersion, polyvinyl alcohol emulsion, epoxy resin, water-based polyvinyl chloride, and silicone resin.

[0018] Preferably, the wool fabric is soaked in acetone to wash away the oil on the surface of the fabric; the acetone on the wool fabric is washed off with deionized water, and the fabric is placed in a blast oven for drying. After drying, the wool fabric is placed in a constant temperature and humidity environment at a temperature of 20±2°C and a relative humidity of 65±2% for humidity adjustment, and then the wool fabric is plasma pretreated; at 55°C, the wool fabric pretreated with plasma is immersed in a functional coating material at a bath ratio of 1:20, and then dried, washed with water, and dried again to obtain a functional coating; the functional coating is immersed again with a cross-linking agent at room temperature and dried.

[0019] More preferably, the cross-linking agent is citric acid, glutaraldehyde, NHS, or maleimide solution.

[0020] The present invention also provides the application of the far-infrared health-care functional coated wool fabric prepared by the above-mentioned preparation method, wherein the far-infrared health-care functional coated wool fabric is used as the outer layer, and a silk fabric is selected as the inner layer to prepare a double-layer heating eye mask; the outer layer of the heating eye mask is sewn with a wire outlet hole, one end of the wire is connected to the outer layer of the eye mask, and the other end is connected to an external power supply, and the wire is fixed by a rivet fixing method. After the power is turned on, the eye mask is heated, and the conductive materials such as graphene in the eye mask are used as heating resistors to convert electrical energy into thermal energy, and the temperature rises rapidly, and the temperature can reach up to 40-45°, which can be used for hot compress around the eyes, effectively relieving eye fatigue. In addition to being able to actively heat to meet the human body's needs for hot compressing the eyes, the heating eye mask also has multiple functions such as antibacterial and anti-wrinkle, soft and breathable, and far-infrared health care.

[0021] The present invention extracts keratin from waste wool, and utilizes the interaction between active groups such as carboxyl and amino groups on biomacromolecule chains such as keratin and chitosan quaternary ammonium salts, and aromatic amino acid residues with micro-nano particles such as graphene and carbon nanotubes to stably disperse micro-nano particles such as graphene and carbon nanotubes; then keratin, chitosan quaternary ammonium salts, graphene, carbon nanotubes, etc. are used to modify traditional film-forming materials to prepare a functional coated wool fabric with antibacterial and wrinkle-proof properties, softness, lightness, and far-infrared health care. This solution not only effectively improves the problem of wool fabrics becoming hard and style-destroying after resin coating modification, but also makes full use of waste keratin resources and realizes the secondary utilization of resources; an electrically heated textile, a heating eye mask, is prepared by utilizing the excellent thermal conductivity and high electrical conductivity of graphene and carbon nanotubes, and as the temperature of the graphene heating film increases, more far-infrared rays are radiated. Therefore, the heating eye mask has the functions of heating, far-infrared health care, and antibacterial. It can not only convert electrical energy into thermal energy and apply hot compress to the eyes to relieve eye fatigue, but also emit far-infrared rays at the same time to improve the blood flow rate of microcirculation on the human skin and speed up the body's metabolism.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1) The antibacterial and anti-wrinkle, soft and breathable, far-infrared health-care functional coated wool fabric is prepared by modifying the traditional membrane substrate materials such as polyurethane and acrylate resin by biomacromolecules such as keratin and chitosan quaternary ammonium salt, adjusting the mass fraction of the blended materials to change the film-forming property and adhesion of the functional coating, and further controlling the thickness and hardness of the coating after curing, reducing the thickness of the film, and being able to retain the original style and soft feel of the wool fabric to the greatest extent;

[0024] 2) The antibacterial and anti-wrinkle, soft and breathable, far-infrared health-care functional coated wool fabric is prepared, and the electrostatic and adsorption effects between keratin, chitosan quaternary ammonium salt and membrane materials and functional particles such as graphene and carbon nanotubes are used to stably disperse and adhere to the functional particles such as graphene and carbon nanotubes in the coating, so that the coated fabric has long-lasting antibacterial, far-infrared health-care and other functions;

[0025] 3) The prepared heating eye mask has the functions of heating, far-infrared health care, and antibacterial. It can not only convert electrical energy into thermal energy and apply hot compress to the eyes to relieve eye fatigue, but also emit far-infrared rays at the same time, improve the blood flow rate of microcirculation on the human skin surface, and accelerate the body's metabolism. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A preparation method of the far-infrared health-care functional coated wool fabric provided by the present invention;

[0027] Figure 2 A schematic diagram of the structure of the heating eye mask provided in Example 1;

[0028] Figure 3 This is a schematic diagram of the components of the heating eye mask provided in Example 1. DETAILED DESCRIPTION

[0029] In order to make the present invention more clearly understood, preferred embodiments are described in detail below with reference to the accompanying drawings.

[0030] like Figure 1 As shown, the preparation method of antibacterial and anti-wrinkle, soft and breathable, and far-infrared health-care functional coated wool fabric adopts the green process ionic liquid method to dissolve waste wool to extract regenerated keratin powder, and adopts the blending modification method to mix the regenerated keratin powder with homemade chitosan quaternary ammonium salt, graphene, nano titanium oxide and other functional particles in a certain proportion into the membrane base material to prepare the functional coating; combined with plasma pretreatment, the functional coating is coated on the wool surface and further cross-linked and modified to obtain antibacterial and anti-wrinkle, soft and breathable, and far-infrared health-care functional coated wool fabric. Figure 2 As shown, the heating eye mask is a double-layer fabric structure, wherein the outer layer 1 is a prepared functional coated wool fabric, and the inner layer 2 is a silk fabric; a buckle is sewn on the upper left corner of the outer layer 1 for connecting the outlet hole 3 of the power supply; elastic bands 4 are sewn on both sides of the heating eye mask for fixing the eye mask on the head. Figure 3 As shown, the heating eye mask is connected by a USB data cable. One end of the data cable is connected to the cable outlet of the outer layer of the eye mask, and the other end is connected to a power bank (5V). The eye mask can be powered and heated to increase the temperature to 40-45°. It can provide hot compress around the eyes and effectively relieve eye fatigue.

[0031] Example 1

[0032] A far-infrared health-care functional coated wool fabric and a heating eye mask product thereof are prepared according to the following steps:

[0033] A) firstly, using an impurity analyzer to remove impurities from the waste wool, then ultrasonically cleaning in a 5 g / L NaOH solution for 30 min to remove lipids on the fiber surface, then rinsing the fiber with distilled water until the pH value of the rinsing solution is less than or equal to 7, and drying and chopping to obtain pretreated wool;

[0034] B) taking the pretreated wool and 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) in a mass ratio of 1:20, heating [AMIM]Cl to 130° C. and adding it to the pretreated wool, allowing the two to be fully mixed and contacted, and reacting for 5 hours under a magnetic stirrer to obtain a keratin solution;

[0035] C) Adding an appropriate amount of distilled water to the keratin solution in B), filtering and dialyzing the solution, and freeze-drying the solution for 24 hours to obtain regenerated keratin powder.

[0036] D) 5 g of chitosan and 20 g of 2,3-epoxypropyltrimethylammonium chloride were placed in a flask equipped with a thermometer and a condenser;

[0037] E) Add 250 mL of isopropanol to A), stir in a water bath at 80°C for 8-10 hours, then take out and cool the reaction solution to precipitate;

[0038] F) After the precipitate in B) is completely precipitated, it is washed with ethanol and acetone in sequence, and a solid product is obtained after vacuum filtration, and finally dried in a vacuum oven at 50° C. to obtain a yellow solid product, chitosan quaternary ammonium salt.

[0039] G) Under heating conditions, 2% regenerated keratin powder, 8% chitosan quaternary ammonium salt, 5% graphene, 4% carbon fiber powder and 1% MXene are added to a water-based acrylic emulsion film base material (accounting for 80% of the total mass) according to mass fraction;

[0040] H) Soak the wool fabric in acetone for 30 minutes to wash away impurities such as oil on the surface of the fabric. Wash off the acetone on the wool fabric with deionized water, put it in a blast oven and dry it for 3 hours at a temperature of 105°C. After drying, place it in a constant temperature and humidity environment at a temperature of 20±2°C and a relative humidity of 65±2% to adjust the humidity, set the plasma instrument power and pressure, and perform plasma treatment on the wool fabric for 60 seconds;

[0041] I) immersing the pretreated wool fabric in the prepared functional coating material at a bath ratio of 1:20 at 55° C. for 10 minutes, then drying it at 70° C., washing it with water and drying it again to obtain a functional coating fabric;

[0042] J) After the wool fabric is impregnated and coated, keratin and chitosan quaternary ammonium salt are impregnated again at room temperature using 3% citric acid solution as a cross-linking agent, and then dried to obtain a wool fabric with antibacterial and wrinkle-proof, soft and breathable, and far-infrared health-care coating function;

[0043] K) The functional coated wool fabric is used as the outer layer, and the silk fabric is selected as the inner layer to prepare a double-layer heating eye mask, and a USB data cable connection method is adopted. A wire outlet hole is sewn on the outer layer of the eye mask, and one end of the data cable is connected to the outer layer of the eye mask, and the other end is connected to an external low-voltage power supply (5V). The eye mask can be heated to a maximum temperature of 40-45°C, and hot compresses can be applied to the area around the eyes to effectively relieve eye fatigue.

[0044] Example 2

[0045] A far-infrared health-care functional coated wool fabric and a heating eye mask product thereof are prepared according to the following steps:

[0046] A) firstly, using an impurity analyzer to remove impurities from the waste wool, then ultrasonically cleaning in a 5 g / L NaOH solution for 30 min to remove lipids on the fiber surface, then rinsing the fiber with distilled water until the pH value of the rinsing solution is less than or equal to 7, and drying and chopping to obtain pretreated wool;

[0047] B) taking the pretreated wool and 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) in a mass ratio of 1:20, heating [AMIM]Cl to 130° C. and adding it to the pretreated wool, allowing the two to be fully mixed and contacted, and reacting for 5 hours under a magnetic stirrer to obtain a keratin solution;

[0048] C) Adding an appropriate amount of distilled water to the keratin solution in B), filtering and dialyzing the solution, and freeze-drying the solution for 24 hours to obtain regenerated keratin powder.

[0049] D) 5 g of chitosan and 20 g of 2,3-epoxypropyltrimethylammonium chloride were placed in a flask equipped with a thermometer and a condenser;

[0050] E) Add 250 mL of isopropanol to A), stir in a water bath at 80°C for 8-10 hours, then take out and cool the reaction solution to precipitate;

[0051] F) After the precipitate in B) is completely precipitated, it is washed with ethanol and acetone in sequence, and a solid product is obtained after vacuum filtration, and finally dried in a vacuum oven at 50° C. to obtain a yellow solid product, chitosan quaternary ammonium salt.

[0052] G) under heating conditions, 5% regenerated keratin powder, 10% chitosan quaternary ammonium salt, 6% graphene, 2% carbon fiber powder and 2% MXene are added to the aqueous polyurethane emulsion film base material (accounting for 75% of the total mass) according to mass fraction;

[0053] H) Soak the wool fabric in acetone for 30 minutes to wash away impurities such as oil on the surface of the fabric. Wash off the acetone on the wool fabric with deionized water, put it in a blast oven and dry it for 3 hours at a temperature of 105°C. After drying, place it in a constant temperature and humidity environment at a temperature of 20±2°C and a relative humidity of 65±2% to adjust the humidity, set the plasma instrument power and pressure, and perform plasma treatment on the wool fabric for 60 seconds;

[0054] I) immersing the pretreated wool fabric in the prepared functional coating material at a bath ratio of 1:20 at 55° C. for 15 minutes, then drying it at 70° C., washing it with water and drying it again to obtain a functional coating fabric;

[0055] J) After the wool fabric is impregnated and coated, keratin and chitosan quaternary ammonium salt are impregnated again at room temperature using 5% glutaraldehyde solution as a cross-linking agent, and then dried to obtain a wool fabric with antibacterial and wrinkle-proof, soft and breathable, and far-infrared health-care function coating;

[0056] K) The functional coated wool fabric is used as the outer layer, and the silk fabric is selected as the inner layer to prepare a double-layer heating eye mask, and a USB data cable connection method is adopted. A wire outlet hole is sewn on the outer layer of the eye mask, and one end of the data cable is connected to the outer layer of the eye mask, and the other end is connected to an external low-voltage power supply (5V). The eye mask can be heated to a maximum temperature of 40-45°C, and hot compresses can be applied to the area around the eyes to effectively relieve eye fatigue.

[0057] Example 3

[0058] A far-infrared health-care functional coated wool fabric and a heating eye mask product thereof are prepared according to the following steps:

[0059] A) firstly, using an impurity analyzer to remove impurities from the waste wool, then ultrasonically cleaning in a 5 g / L NaOH solution for 30 min to remove lipids on the fiber surface, then rinsing the fiber with distilled water until the pH value of the rinsing solution is less than or equal to 7, and drying and chopping to obtain pretreated wool;

[0060] B) taking the pretreated wool and 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) in a mass ratio of 1:20, heating [AMIM]Cl to 130° C. and adding it to the pretreated wool, allowing the two to be fully mixed and contacted, and reacting for 5 hours under a magnetic stirrer to obtain a keratin solution;

[0061] C) Adding an appropriate amount of distilled water to the keratin solution in B), filtering and dialyzing the solution, and freeze-drying the solution for 24 hours to obtain regenerated keratin powder.

[0062] D) 5 g of chitosan and 20 g of 2,3-epoxypropyltrimethylammonium chloride were placed in a flask equipped with a thermometer and a condenser;

[0063] E) Add 250 mL of isopropanol to A), stir in a water bath at 80°C for 8-10 hours, then take out and cool the reaction solution to precipitate;

[0064] F) After the precipitate in B) is completely precipitated, it is washed with ethanol and acetone in sequence, and a solid product is obtained after vacuum filtration, and finally dried in a vacuum oven at 50° C. to obtain a yellow solid product, chitosan quaternary ammonium salt.

[0065] G) Under heating conditions, 2% regenerated keratin powder, 8% chitosan quaternary ammonium salt, 8% graphene, 5% carbon fiber powder and 2% MXene are added to the aqueous phenolic resin dispersion film base material (accounting for 75% of the total mass) according to mass fraction;

[0066] H) Soak the wool fabric in acetone for 30 minutes to wash away impurities such as oil on the surface of the fabric. Wash off the acetone on the wool fabric with deionized water, put it in a blast oven and dry it for 3 hours at a temperature of 105°C. After drying, place it in a constant temperature and humidity environment at a temperature of 20±2°C and a relative humidity of 65±2% to adjust the humidity, set the plasma instrument power and pressure, and perform plasma treatment on the wool fabric for 60 seconds;

[0067] I) immersing the pretreated wool fabric in the prepared functional coating material at a bath ratio of 1:20 at 55° C. for 15 minutes, then drying it at 70° C., washing it with water and drying it again to obtain a functional coating fabric;

[0068] J) After the wool fabric is impregnated and coated, keratin and chitosan quaternary ammonium salt are impregnated again at room temperature using 3% NHS solution as a cross-linking agent, and then dried to obtain a wool fabric with antibacterial and wrinkle-proof, soft and breathable, and far-infrared health-care coating function;

[0069] K) The functional coated wool fabric is used as the outer layer, and the silk fabric is selected as the inner layer to prepare a double-layer heating eye mask, and a USB data cable connection method is adopted. A wire outlet hole is sewn on the outer layer of the eye mask, and one end of the data cable is connected to the outer layer of the eye mask, and the other end is connected to an external low-voltage power supply (5V). The eye mask can be heated to a maximum temperature of 40-45°C, and hot compresses can be applied to the area around the eyes to effectively relieve eye fatigue.

[0070] Example 4

[0071] A far-infrared health-care functional coated wool fabric and a heating eye mask product thereof are prepared according to the following steps:

[0072] A) firstly, using an impurity analyzer to remove impurities from the waste wool, then ultrasonically cleaning in a 5 g / L NaOH solution for 30 min to remove lipids on the fiber surface, then rinsing the fiber with distilled water until the pH value of the rinsing solution is less than or equal to 7, and drying and chopping to obtain pretreated wool;

[0073] B) taking the pretreated wool and 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) in a mass ratio of 1:20, heating [AMIM]Cl to 130° C. and adding it to the pretreated wool, allowing the two to be fully mixed and contacted, and reacting for 5 hours under a magnetic stirrer to obtain a keratin solution;

[0074] C) Adding an appropriate amount of distilled water to the keratin solution in B), filtering and dialyzing the solution, and freeze-drying the solution for 24 hours to obtain regenerated keratin powder.

[0075] D) 5 g of chitosan and 20 g of 2,3-epoxypropyltrimethylammonium chloride were placed in a flask equipped with a thermometer and a condenser;

[0076] E) Add 250 mL of isopropanol to A), stir in a water bath at 80°C for 8-10 hours, then take out and cool the reaction solution to precipitate;

[0077] F) After the precipitate in B) is completely precipitated, it is washed with ethanol and acetone in sequence, and a solid product is obtained after vacuum filtration, and finally dried in a vacuum oven at 50° C. to obtain a yellow solid product, chitosan quaternary ammonium salt.

[0078] G) under heating conditions, adding 5% regenerated keratin powder, 5% chitosan quaternary ammonium salt, 5% graphene, 5% carbon fiber powder, 2% MXene and 3% silver nanowires by mass into a polyvinyl alcohol emulsion film base material (accounting for 75% of the total mass);

[0079] H) Soak the wool fabric in acetone for 30 minutes to wash away impurities such as oil on the surface of the fabric. Wash off the acetone on the wool fabric with deionized water, put it in a blast oven and dry it for 3 hours at a temperature of 105°C. After drying, place it in a constant temperature and humidity environment at a temperature of 20±2°C and a relative humidity of 65±2% to adjust the humidity, set the plasma instrument power and pressure, and perform plasma treatment on the wool fabric for 60 seconds;

[0080] I) immersing the pretreated wool fabric in the prepared functional coating material at a bath ratio of 1:20 at 55° C. for 10 minutes, then drying it at 70° C., washing it with water and drying it again to obtain a functional coating fabric;

[0081] J) After the wool fabric is impregnated and coated, keratin and chitosan quaternary ammonium salt are impregnated again at room temperature using 5% maleimide solution as a cross-linking agent, and then dried to obtain a wool fabric with antibacterial and wrinkle-proof, soft and breathable, and far-infrared health-care coating function;

[0082] K) The functional coated wool fabric is used as the outer layer, and the silk fabric is selected as the inner layer to prepare a double-layer heating eye mask, and a USB data cable connection method is adopted. A wire outlet hole is sewn on the outer layer of the eye mask, and one end of the data cable is connected to the outer layer of the eye mask, and the other end is connected to an external low-voltage power supply (5V). The eye mask can be heated to a maximum temperature of 40-45°C, and hot compresses can be applied to the area around the eyes to effectively relieve eye fatigue.

[0083] The parameter table of each embodiment is shown in Figure 1.

[0084] Table 1

[0085]

[0086]

Claims

1. A method for preparing a far-infrared health-care functional coated wool fabric, characterized in that: The waste wool is dissolved by an ionic liquid method to extract regenerated keratin powder, and the regenerated keratin powder is mixed with chitosan quaternary ammonium salt and functional particles into a membrane base material by a blending modification method to prepare a functional coating material; Combined with plasma pretreatment, the functional coating material is coated on the surface of the wool fabric and further cross-linked and modified to obtain a far-infrared health-care functional coated wool fabric.

2. The method for preparing the far-infrared health-care functional coated wool fabric according to claim 1, characterized in that: The preparation method of the regenerated keratin powder comprises the following steps: Step 1): first use an impurity analyzer to remove impurities from the waste wool, then use ultrasonic cleaning in a NaOH solution to remove lipids on the fiber surface, then use distilled water to rinse the fiber until the pH value of the rinsing liquid is less than or equal to 7, and then dry and cut into pieces to obtain pretreated wool; Step 2): 1-allyl-3-methylimidazole chloride is heated and added to the pretreated wool, the two are fully mixed and contacted, and a keratin solution is obtained after reaction under a magnetic stirrer; Step 3): adding distilled water to the keratin solution, filtering and dialysis the solution, and freeze-drying the solution to obtain regenerated keratin powder.

3. The method for preparing the far-infrared health-care functional coated wool fabric according to claim 2, characterized in that: In the step 2), the mass ratio of the pretreated wool to 1-allyl-3-methylimidazole chloride is 1:20; and the heating temperature is 130°C.

4. The method for preparing the far-infrared health-care functional coated wool fabric according to claim 1, characterized in that: The preparation method of the self-made chitosan quaternary ammonium salt comprises the following steps: Step a): adding chitosan and 2,3-epoxypropyltrimethylammonium chloride to isopropanol, stirring in a water bath at 80° C. for reaction for 8 to 10 hours, then taking out, and cooling the reaction solution to obtain precipitation; Step b): After the precipitate is completely precipitated, it is washed with ethanol and acetone in sequence, vacuum filtered to obtain a solid phase product, and finally dried to obtain chitosan quaternary ammonium salt.

5. The method for preparing the far-infrared health-care functional coated wool fabric according to claim 4, characterized in that: In the step a), the ratio of isopropanol, chitosan and 2,3-epoxypropyltrimethylammonium chloride is 50 mL: 1 g: 4 g.

6. The method for preparing the far-infrared health-care functional coated wool fabric according to claim 1, characterized in that: The functional particles include at least one of multilayer graphene, carbon nanotubes, carbon fiber powder, MXene, one-dimensional silver nanowires, and nano-titanium oxide.

7. The method for preparing the far-infrared health-care functional coated wool fabric according to claim 1, characterized in that: The film base material includes at least one of water-based acrylic emulsion, water-based polyurethane emulsion, water-based phenolic resin dispersion, polyvinyl alcohol emulsion, epoxy resin, water-based polyvinyl chloride and silicone resin.

8. The method for preparing the far-infrared health-care functional coated wool fabric according to claim 1, characterized in that: The wool fabric is soaked in acetone to wash away the oil on the surface of the fabric; the acetone on the wool fabric is washed off with deionized water, and the fabric is placed in a blast oven for drying. After drying, the wool fabric is placed in a constant temperature and humidity environment at a temperature of 20±2°C and a relative humidity of 65±2% for humidity adjustment, and then the wool fabric is subjected to plasma pretreatment; at 55°C, the wool fabric subjected to plasma pretreatment is immersed in a functional coating material at a bath ratio of 1:20, and then dried, washed with water, and dried again to obtain a functional coating; at room temperature, the functional coating is immersed again with a crosslinking agent and dried.

9. The method for preparing the far-infrared health-care functional coated wool fabric according to claim 8, characterized in that: The cross-linking agent is citric acid, glutaraldehyde, NHS, and maleimide solution.

10. Application of the far-infrared health-care functional coated wool fabric prepared by the preparation method according to any one of claims 1 to 9, characterized in that: The far-infrared health-care functional coated wool fabric is used as the outer layer, and the silk fabric is selected as the inner layer to prepare a double-layer heating eye mask; the outer layer of the heating eye mask is sewn with a wire outlet hole, one end of the wire is connected to the outer layer of the eye mask, and the other end is connected to an external power supply, and the wire is fixed by a buckle fixing method.

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