Hemp leaf anti-aging mask and preparation method thereof

Abstract

The application discloses a hemp leaf anti-aging mask and a preparation method thereof, and belongs to the field of cosmetics. The mask base of the hemp leaf anti-aging mask comprises the following components: hemp leaf extract 0.1-2 parts, hyaluronic acid 10-20 parts, flower and grass essential oil 5-10 parts, glycerol 1-10 parts, carbomer 1-5 parts, ethanol 10-20 parts and water 500-5000 parts. The hemp leaf anti-aging mask has good stability, good skin adhesion, comfortable and refreshing skin, good water moistening property, and after use for a certain period of time, the nasolabial folds are shallower, the anti-wrinkle effect is achieved, and the skin is obviously whitened.

Description

Technical Field

[0001] This invention relates to the field of cosmetics technology, specifically to a hemp leaf anti-aging facial mask and its preparation method. Background Technology

[0002] The principle behind face masks is to temporarily isolate the skin from external air and pollution by covering it for a short period of time, thereby increasing skin temperature, expanding skin pores, promoting sweat gland secretion and metabolism, increasing the skin's oxygen content, and helping the skin to remove metabolic waste products and accumulated oil. The moisture in the mask penetrates the stratum corneum of the epidermis, making the skin soft, naturally radiant and elastic.

[0003] There are four main types of face masks: clay masks, peel-off masks, gel masks, and wet wipe masks. Common clay masks include seaweed masks and mineral clay masks. Peel-off masks are most commonly seen as nose strips for blackheads and whiteheads. Gel masks are best known for their sleeping effect. Wet wipe masks are generally individually packaged sheet masks soaked in beauty essence, consisting of a flat non-woven fabric and a shaped adhesive sticker. With the development of beauty technology, masks made of silk have emerged. Strictly speaking, these should be classified as wet wipe masks, but commercially available sheet masks only have absorbent properties and do not possess any specific functional benefits.

[0004] Hemp seed extract is a precious component extracted from hemp. It does not cause dependence and also has anti-inflammatory, antibacterial, analgesic, anti-anxiety, antipsychotic, antioxidant, learning and memory improvement, neuroprotective and intestinal motility reduction effects. It can be used to treat multiple arteriosclerosis and Parkinson's disease, prevent myocardial infarction, and inhibit the metastasis of glioma cells.

[0005] From a cosmetic perspective, hemp seed extract is the first cosmetic ingredient that can affect the skin at the neurological level. It is absorbed into the basal layer of the skin, exerting anti-inflammatory and antioxidant effects on cells in various layers of the epidermis, improving the skin's sub-healthy state, restoring the skin's original healthy barrier, enabling it to autonomously retain, store, and lock in moisture, and independently resist external allergens, thus protecting the skin. Summary of the Invention

[0006] Therefore, this invention provides a hemp leaf anti-aging facial mask and its preparation method.

[0007] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0008] According to a first aspect of the present invention, the present invention provides a method for preparing a hemp leaf anti-aging facial mask, the method comprising:

[0009] Step 1: Remove rotten and insect-damaged stems and leaves from hemp leaves, wash them, chop them, air dry them in a ventilator, dry them in an oven, put them into a grinder to grind them, and sieve them to obtain hemp leaf powder.

[0010] Step 2: Place the dried hemp leaf powder obtained in Step 1 in an ether solution for the first ultrasonic extraction. Place the remaining filter residue in an ether solution again for the second ultrasonic extraction. Combine the supernatants from the two extractions and keep the supernatant and filter residue for later use.

[0011] Step 3: After the supernatant obtained in Step 2 is subjected to a first vacuum distillation, the concentrated liquid is adsorbed by macroporous adsorption resin, eluted with ethanol, and the eluent rich in hemp extract is collected. After vacuum distillation and vacuum freeze drying, hemp extract is obtained and set aside for use.

[0012] Step 4: Vacuum dry the filter residue obtained in Step 2, then soak it in sodium hydroxide solution, filter it, place it in water-retaining agent solution, adjust the pH, soak it, filter it, wash it, and obtain hemp leaf fiber for later use.

[0013] Step 5: The hemp leaf fibers obtained in Step 4 are carded and laid into a web, hydroentangled and dried, and then stamped into a facial shape using a mold to obtain a hemp leaf facial mask paper.

[0014] Step 6: Weigh the hemp extract, hyaluronic acid, herbal essential oil, glycerol, carbomer, ethanol, and water obtained in Step 3. Mix the weighed hemp extract, hyaluronic acid, herbal essential oil, glycerol, and ethanol evenly to obtain the first mixture. Mix the weighed carbomer and water evenly and add them to the first mixture. Stir evenly to obtain the mask base.

[0015] Step 7: Evenly coat the mask base material obtained in Step 6 onto the hemp leaf mask paper obtained in Step 5, pack it in a bag, seal it, and obtain the hemp leaf anti-aging mask.

[0016] Furthermore, in step 2, the conditions for the first ultrasonic extraction are: the volume ratio of hemp leaf powder to ether is 1:10-20, stirring at 40℃ for 2-5 hours, and ultrasonication for 5-10 minutes every 30 minutes.

[0017] The conditions for the second ultrasonic extraction were: a volume ratio of hemp leaf powder to ether of 1:8-15, stirring at 40℃ for 2-5 hours, and ultrasonication for 5 minutes every 30 minutes.

[0018] Furthermore, in step 3, the temperature of the first vacuum distillation is 40-50℃, the ratio of concentrate to macroporous adsorption resin is 5ml:1g, and the adsorption temperature is 20-30℃.

[0019] The temperature of the second vacuum distillation was 70-75℃. The vacuum freeze-drying program was as follows: vacuum degree 0-1Pa, freeze-drying temperature program was -30℃ for 10 min, -20℃ for 10 min, -10℃ for 10 min, 0℃ for 5 min, 5℃ for 5 min, 10℃ for 5 min, 15℃ for 5 min, 20℃ for 5 min, and 30℃ for 15-20 min.

[0020] Furthermore, in step 3, the macroporous adsorption resin is of type S-8 with a particle size range of 0.3-1.25 mm;

[0021] The concentration of ethanol was 70 wt%, and the elution was performed 3 times.

[0022] Further, in step 4, the vacuum drying temperature is 40-60℃ and the time is 2-5h; the material-to-liquid ratio of the dried filter residue to the sodium hydroxide solution is 1g:10ml, the concentration of the sodium hydroxide solution is 10wt%, the soaking time is 1.5-3h, the soaking temperature is 30-50℃, the material-to-liquid ratio of the filtered product to the water-retaining agent solution is 1g:5-10ml, the pH is adjusted to 6-7, the stirring time is 20-30min, and the soaking temperature is 30-50℃.

[0023] Furthermore, in step 4, the water-retaining agent solution is a 5wt% aqueous solution of glycerol.

[0024] Furthermore, in step 5, the carding and web-laying process using the carding machine has the following specifications: machine width 2500mm, main cylinder diameter 1500mm, doffer diameter 500mm, web exit speed 150m / min, number of web layers 2, and web output weight 40g / m². 2 The hydroentangling process involves a hydroentangling pressure of 15-30 bar, a water needle outlet diameter of 0.10-0.14 mm, and a post-hydroentangling drying temperature of 50-60℃.

[0025] Further, in step 6, the weight percentages of hemp leaf extract are 0.1-2 parts, hyaluronic acid is 10-20 parts, herbal essential oil is 5-10 parts, glycerol is 1-10 parts, carbomer is 1-5 parts, ethanol is 10-20 parts, and water is 500-5000 parts. The herbal essential oil is one of rose essential oil, jasmine essential oil, lavender essential oil, lotus essential oil, lily essential oil, orchid essential oil.

[0026] Furthermore, in step 7, the amount of the mask base material used is 3-10g / piece.

[0027] According to a second aspect of the present invention, the present invention provides a hemp leaf anti-aging facial mask, which is made by the method described in any of the preceding embodiments.

[0028] The embodiments of the present invention have the following advantages:

[0029] 1. This invention first enriches the active extract by ultrasonic extraction with ether, and then processes the remaining filter residue to prepare hemp leaf fiber. It has two uses: it can extract small molecule anti-aging active ingredients and use plant fiber to prepare mask substrate, which can greatly improve the utilization rate of all components of hemp leaf and reduce raw material costs.

[0030] 2. This invention employs a double-stage ultrasonic extraction with ether, which, compared to single extraction, can fully dissolve anti-aging active substances such as flavonoids, polyphenols, phytosterols, and antioxidant polysaccharides in hemp leaves. Combined with a macroporous adsorption resin adsorption-ethanol elution purification process, impurities can be effectively removed and the active ingredients enriched. Then, vacuum distillation and vacuum freeze-drying are performed to avoid high-temperature damage to heat-sensitive active substances and maximize the preservation of the original antioxidant, whitening, and anti-wrinkle activities of hemp leaves.

[0031] 3. The mask base of this invention uses hemp seed extract as the active ingredient, which has antioxidant, anti-wrinkle, whitening, and repairing effects; hyaluronic acid and glycerol moisturize and lock in moisture; herbal essential oils promote penetration, soothe, and fragrance; carbomer and ethanol stabilize the formula and improve its shaping and absorption efficiency, thus solving the problems of dry, dull skin, fine lines, and aging, while optimizing the product's formulation stability and user experience. The hemp leaf anti-aging mask provided by this invention has good stability, good skin adhesion, and leaves the skin feeling comfortable, refreshed, and moisturized after use. After a certain period of use, nasolabial folds become less pronounced, exhibiting a certain anti-wrinkle effect, and a noticeable whitening effect on the skin. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] This embodiment provides a method for preparing a hemp leaf anti-aging facial mask, including the following steps:

[0035] Step 1: Remove rotten and insect-infested stems and leaves from the hemp leaves, wash them, chop them, air dry them in a ventilated area, then dry them in an oven, put them into a grinder to grind them, sieve them, and obtain hemp leaf powder for later use.

[0036] Step 2: Place the dried hemp leaf powder obtained in Step 1 into 15 times its volume of ether solution and extract it at 40°C with stirring. Sonicate for 10 minutes every 30 minutes. After extraction for 3 hours, take the supernatant for later use. Place the remaining filter residue into 10 times its volume of ether solution again and extract it at 40°C with stirring. Sonicate for 5 minutes every 30 minutes. After extraction for 3 hours, combine the supernatants from the two extractions and take the supernatant and filter residue for later use.

[0037] Step 3: The supernatant obtained in Step 2 is subjected to vacuum distillation at 45°C. The resulting concentrate is adsorbed onto macroporous adsorption resin (model S-8, particle size range 1mm) at 25°C at a material-to-liquid ratio of 5ml:1g. After elution three times with 70wt% ethanol, the eluent rich in hemp seed extract is collected and subjected to vacuum distillation at 75°C. The resulting concentrate is then freeze-dried under vacuum. The freeze-drying program is as follows: vacuum degree 0-1Pa, freeze-drying temperature program: -30°C for 10min, -20°C for 10min, -10°C for 10min, 0°C for 5min, 5°C for 5min, 10°C for 5min, 15°C for 5min, 20°C for 5min, 30°C for 15min. The hemp seed extract is obtained and ready for use.

[0038] Step 4: Dry the filter residue obtained in Step 2 under vacuum at 50℃ for 3 hours, then soak it in a 10wt% sodium hydroxide solution at 35℃ for 2 hours at a material-to-liquid ratio of 1g:10ml. After filtration, place the product in a 5wt% glycerol aqueous solution at a material-to-liquid ratio of 1g:5ml, adjust the pH to 7, soak it at 40℃ for 30 minutes, filter, wash, and obtain hemp leaf fiber for later use.

[0039] Step 5: The hemp leaf fibers obtained in Step 4 are fed into the carding and web-laying process. The carding and web-laying process using a carding machine has the following parameters: machine width 2500mm, main cylinder diameter 1500mm, doffer diameter 500mm, web exit speed 150m / min, number of web layers 2, and web output weight 40g / m². 2 Next, hydroentangling is performed. The hydroentangling process is as follows: hydroentangling pressure 25 bar, water needle outlet diameter 0.12 mm, drying at 60℃, and then stamping with a mold into a face shape to obtain hemp leaf facial mask paper.

[0040] Step 6: Weigh 1 part of hemp seed extract, 15 parts of hyaluronic acid, 5 parts of lavender essential oil, 5 parts of glycerol, 5 parts of carbomer, 20 parts of ethanol, and 1000 parts of water obtained in Step 3. Mix the weighed hemp seed extract, hyaluronic acid, lavender essential oil, glycerol, and ethanol evenly to obtain the first mixture. Mix the weighed carbomer and water evenly and add them to the first mixture. Stir evenly to obtain the mask base.

[0041] Step 7: Apply the mask base material obtained in Step 6 evenly onto the hemp leaf mask paper obtained in Step 5 at a rate of 7g / sheet, pack it in a bag, seal it, and you will get the hemp leaf anti-aging mask.

[0042] The anti-aging facial mask prepared in this embodiment was subjected to a low-temperature stability test. The mask was sealed in a transparent bag and placed in a refrigerator at 4°C. It was taken out on days 1, 3, 5, 10, 15, 20 and 30, and the changes in the mask were recorded. A comparative example was made by coating the mask base material of this embodiment with commercially available silk mask paper. The results are shown in Table 1 below.

[0043] Table 1 Low Temperature Stability Test

[0044]

[0045] As can be seen from Table 1, the hemp leaf mask paper of this embodiment can completely absorb the mask base material, and the mask base material has good stability at low temperature.

[0046] The high-temperature stability test of the hemp leaf anti-aging mask prepared in this embodiment was conducted. The mask was sealed in a transparent bag and placed in an electric heating constant temperature box at 40°C. The mask was taken out on days 1, 3, 5, 10, 15, 20 and 30, and the changes of the mask were recorded. A comparative example was made by coating commercially available silk mask paper with the mask base material of this embodiment. The results are shown in Table 2 below.

[0047] Table 2 High Temperature Stability Test

[0048]

[0049] As can be seen from Table 2, the hemp leaf mask paper of this embodiment can completely absorb the mask base material, and the mask base material has good stability at high temperature.

[0050] Example 2

[0051] This embodiment provides a method for preparing a hemp leaf anti-aging facial mask, including the following steps:

[0052] Step 1: Remove rotten and insect-infested stems and leaves from the hemp leaves, wash them, chop them, air dry them in a ventilated area, then dry them in an oven, put them into a grinder to grind them, sieve them, and obtain hemp leaf powder for later use.

[0053] Step 2: Place the dried hemp leaf powder obtained in Step 1 into 10 times its volume of ether solution and extract it at 40°C with stirring. Sonicate for 10 minutes every 30 minutes. After extraction for 2 hours, take the supernatant for later use. Place the remaining filter residue into 8 times its volume of ether solution and extract it again at 40°C with stirring. Sonicate for 5 minutes every 30 minutes. After extraction for 2 hours, combine the supernatants from the two extractions and take the supernatant and filter residue for later use.

[0054] Step 3: The supernatant obtained in Step 2 is subjected to vacuum distillation at 40°C. The resulting concentrate is adsorbed onto a macroporous adsorption resin (model S-8, particle size range 0.3 mm) at 25°C at a material-to-liquid ratio of 5 ml: 1 g. After elution three times with 70 wt% ethanol, the eluent rich in hemp seed extract is collected and subjected to vacuum distillation at 70°C. The resulting concentrate is then freeze-dried under vacuum. The freeze-drying program is as follows: vacuum degree 0-1 Pa, freeze-drying temperature program: -30°C for 10 min, -20°C for 10 min, -10°C for 10 min, 0°C for 5 min, 5°C for 5 min, 10°C for 5 min, 15°C for 5 min, 20°C for 5 min, 30°C for 20 min, to obtain hemp seed extract, which is ready for use.

[0055] Step 4: Dry the filter residue obtained in Step 2 under vacuum at 40℃ for 2 hours. Then, soak it in a 10wt% sodium hydroxide solution at 30℃ for 1.5 hours at a material-to-liquid ratio of 1g:10ml. After filtration, place the product in a 5wt% glycerol aqueous solution at a material-to-liquid ratio of 1g:5ml, adjust the pH to 6, soak it at 30℃ for 20 minutes, filter, wash, and obtain hemp leaf fiber for later use.

[0056] Step 5: The hemp leaf fibers obtained in Step 4 are fed into the carding and web-laying process. The carding and web-laying process using a carding machine has the following parameters: machine width 2500mm, main cylinder diameter 1500mm, doffer diameter 500mm, web exit speed 150m / min, number of web layers 2, and web output weight 40g / m². 2 Next, hydroentangling is performed. The hydroentangling process is as follows: hydroentangling pressure is 15 bar, the diameter of the water needle outlet is 0.10 mm, drying is carried out at 50°C, and then the paper is stamped into a face shape using a mold to obtain the hemp leaf facial mask paper.

[0057] Step 6: Weigh 0.1 parts of hemp seed extract, 10 parts of hyaluronic acid, 5 parts of rose essential oil, 1 part of glycerol, 1 part of carbomer, 10 parts of ethanol, and 500 parts of water obtained in Step 3. Mix the weighed hemp seed extract, hyaluronic acid, rose essential oil, glycerol, and ethanol evenly to obtain the first mixture. Mix the weighed carbomer and water evenly and add them to the first mixture. Stir evenly to obtain the mask base.

[0058] Step 7: Apply the mask base material obtained in Step 6 evenly onto the hemp leaf mask paper obtained in Step 5 at a rate of 10g / sheet, pack it in a bag, seal it, and you will get the hemp leaf anti-aging mask.

[0059] The hemp leaf anti-aging facial mask prepared in this embodiment was used in a trial survey of 20 women aged 30-50. Before and after the trial, the oil, moisture, elasticity and elasticity of their faces were tested with a skin intelligent detection pen, the test results were recorded, and the average value was calculated. The results are shown in Table 3 below.

[0060] Table 3 Facial Condition Record Before and After Trial Use

[0061]

[0062] As can be seen from Table 3, the hemp leaf anti-aging mask prepared in this embodiment showed a decrease in oil content and an increase in moisture in the facial skin before and after use, and a significant increase in elasticity. This indicates that the hemp leaf anti-aging mask prepared in this embodiment has obvious effects on immediate hydration, skin conditioning, and anti-aging.

[0063] Example 3

[0064] This embodiment provides a method for preparing a hemp leaf anti-aging facial mask, including the following steps:

[0065] Step 1: Remove rotten and insect-infested stems and leaves from the hemp leaves, wash them, chop them, air dry them in a ventilated area, then dry them in an oven, put them into a grinder to grind them, sieve them, and obtain hemp leaf powder for later use.

[0066] Step 2: Place the dried hemp leaf powder obtained in Step 1 into 20 times its volume of ether solution and extract it at 40°C with stirring. Sonicate for 10 minutes every 30 minutes. After extraction for 4 hours, take the supernatant for later use. Place the remaining filter residue into 15 times its volume of ether solution and extract it again at 40°C with stirring. Sonicate for 5 minutes every 30 minutes. After extraction for 5 hours, combine the supernatants from the two extractions and obtain the supernatant and filter residue separately for later use.

[0067] Step 3: The supernatant obtained in Step 2 is subjected to vacuum distillation at 50°C. The resulting concentrate is adsorbed onto a macroporous adsorption resin (model S-8, particle size range 1.25 mm) at 25°C at a material-to-liquid ratio of 5 ml: 1 g. After elution three times with 70 wt% ethanol, the eluent rich in hemp seed extract is collected and subjected to vacuum distillation at 75°C. The resulting concentrate is then freeze-dried under vacuum. The freeze-drying procedure is as follows: vacuum degree 0-1 Pa, freeze-drying temperature program: -30°C for 10 min, -20°C for 10 min, -10°C for 10 min, 0°C for 5 min, 5°C for 5 min, 10°C for 5 min, 15°C for 5 min, 20°C for 5 min, 30°C for 20 min, to obtain hemp seed extract, which is ready for use.

[0068] Step 4: Dry the filter residue obtained in Step 2 under vacuum at 60℃ for 5 hours, then soak it in a 10wt% sodium hydroxide solution at 50℃ for 3 hours at a material-to-liquid ratio of 1g:10ml. After filtration, place the product in a 5wt% glycerol aqueous solution at a material-to-liquid ratio of 1g:10ml, adjust the pH to 7, soak it at 50℃ for 30 minutes, filter, wash, and obtain hemp leaf fiber for later use.

[0069] Step 5: The hemp leaf fibers obtained in Step 4 are fed into the carding and web-laying process. The carding and web-laying process using a carding machine has the following parameters: machine width 2500mm, main cylinder diameter 1500mm, doffer diameter 500mm, web exit speed 150m / min, number of web layers 2, and web output weight 40g / m². 2 Next, hydroentangling is performed. The hydroentangling process is as follows: hydroentangling pressure is 30 bar, the diameter of the water needle outlet is 0.14 mm, drying is carried out at 60℃, and then the paper is stamped into a face shape using a mold to obtain the hemp leaf facial mask paper.

[0070] Step 6: Weigh 2 parts of hemp seed extract, 20 parts of hyaluronic acid, 10 parts of lavender essential oil, 10 parts of glycerol, 5 parts of carbomer, 20 parts of ethanol, and 1000 parts of water obtained in Step 3. Mix the weighed hemp seed extract, hyaluronic acid, lavender essential oil, glycerol, and ethanol evenly to obtain the first mixture. Mix the weighed carbomer and water evenly and add them to the first mixture. Stir evenly to obtain the mask base.

[0071] Step 7: Apply the mask base material obtained in Step 6 evenly onto the hemp leaf mask paper obtained in Step 5 at a rate of 10g / sheet, pack it in a bag, seal it, and you will get the hemp leaf anti-aging mask.

[0072] The hemp leaf anti-aging facial mask prepared in this embodiment was used in a long-term trial survey of 10 women aged 30-50 for 3 months, twice a week. The condition of their faces was recorded before and after the trial, and the comfort, moisturizing, refreshing feeling, whitening effect, wrinkle reduction effect, and spot removal effect were evaluated. The highest score for each item was 5 points and the lowest score was 1 point, which represents the degree of 5 points - very good, 4 points - good, 3 points - average, 2 points - poor, and 1 point - very poor. The test results were recorded and the average value was calculated. The results are shown in Table 4 below.

[0073] Table 4. Results of the survey using the questionnaire.

[0074]

[0075] The hemp leaf anti-aging mask prepared in this embodiment has good skin adhesion, and the skin feels comfortable, refreshed and moisturized after use. After a certain period of use, nasolabial folds become shallower, and it has a certain anti-wrinkle effect. In addition, the skin can be clearly felt to be whiter.

[0076] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A method for preparing a hemp leaf anti-aging facial mask, characterized in that, The method includes: Step 1: Remove rotten and insect-damaged stems and leaves from hemp leaves, wash them, chop them, air dry them in a ventilator, dry them in an oven, put them into a grinder to grind them, and sieve them to obtain hemp leaf powder. Step 2: Place the dried hemp leaf powder obtained in Step 1 in an ether solution for the first ultrasonic extraction. Place the remaining filter residue in an ether solution again for the second ultrasonic extraction. Combine the supernatants from the two extractions and keep the supernatant and filter residue for later use. Step 3: After the supernatant obtained in Step 2 is subjected to a first vacuum distillation, the concentrated liquid is adsorbed by macroporous adsorption resin, eluted with ethanol, and the eluent rich in hemp extract is collected. After vacuum distillation and vacuum freeze drying, hemp extract is obtained and set aside for use. Step 4: Vacuum dry the filter residue obtained in Step 2, then soak it in sodium hydroxide solution, filter it, place it in water-retaining agent solution, adjust the pH, soak it, filter it, wash it, and obtain hemp leaf fiber for later use. Step 5: The hemp leaf fibers obtained in Step 4 are carded and laid into a web, hydroentangled and dried, and then stamped into a facial shape using a mold to obtain a hemp leaf facial mask paper. Step 6: Weigh the hemp extract, hyaluronic acid, herbal essential oil, glycerol, carbomer, ethanol, and water obtained in Step 3. Mix the weighed hemp extract, hyaluronic acid, herbal essential oil, glycerol, and ethanol evenly to obtain the first mixture. Mix the weighed carbomer and water evenly and add them to the first mixture. Stir evenly to obtain the mask base. Step 7: Evenly coat the mask base material obtained in Step 6 onto the hemp leaf mask paper obtained in Step 5, pack it in a bag, seal it, and obtain the hemp leaf anti-aging mask.

2. The method for preparing the hemp leaf anti-aging facial mask according to claim 1, characterized in that, In step 2, The conditions for the first ultrasonic extraction were: a volume ratio of hemp leaf powder to ether of 1:10-20, stirring at 40℃ for 2-5 hours, and ultrasonication for 5-10 minutes every 30 minutes. The conditions for the second ultrasonic extraction were: a volume ratio of hemp leaf powder to ether of 1:8-15, stirring at 40℃ for 2-5 hours, and ultrasonication for 5 minutes every 30 minutes.

3. The method for preparing a hemp leaf anti-aging facial mask according to claim 1, characterized in that, In step 3, The temperature of the first vacuum distillation is 40-50℃, the ratio of concentrate to macroporous adsorption resin is 5ml:1g, and the adsorption temperature is 20-30℃. The temperature of the second vacuum distillation was 70-75℃. The vacuum freeze-drying program was as follows: vacuum degree 0-1Pa, freeze-drying temperature program was -30℃ for 10 min, -20℃ for 10 min, -10℃ for 10 min, 0℃ for 5 min, 5℃ for 5 min, 10℃ for 5 min, 15℃ for 5 min, 20℃ for 5 min, and 30℃ for 15-20 min.

4. The method for preparing the hemp leaf anti-aging facial mask according to claim 3, characterized in that, In step 3, The macroporous adsorption resin is of type S-8, with a particle size range of 0.3-1.25 mm. The concentration of ethanol was 70 wt%, and the elution was performed 3 times.

5. The method for preparing the hemp leaf anti-aging facial mask according to claim 1, characterized in that, In step 4, The vacuum drying temperature is 40-60℃, and the time is 2-5h; the material-to-liquid ratio of the dried filter residue to the sodium hydroxide solution is 1g:10ml, the concentration of the sodium hydroxide solution is 10wt%, the soaking time is 1.5-3h, and the soaking temperature is 30-50℃; the material-to-liquid ratio of the filtered product to the water-retaining agent solution is 1g:5-10ml, the pH is adjusted to 6-7, the stirring time is 20-30min, and the soaking temperature is 30-50℃.

6. The method for preparing the hemp leaf anti-aging facial mask according to claim 1, characterized in that, In step 4, the water-retaining agent solution is a 5 wt% aqueous solution of glycerol.

7. The method for preparing the hemp leaf anti-aging facial mask according to claim 1, characterized in that, In step 5, the carding and web-laying process using the carding machine has the following specifications: machine width 2500mm, main cylinder diameter 1500mm, doffer diameter 500mm, web exit speed 150m / min, web exit layers 2, and web exit weight 40g / m². 2 The hydroentangling process involves a hydroentangling pressure of 15-30 bar, a water needle outlet diameter of 0.10-0.14 mm, and a post-hydroentangling drying temperature of 50-60℃.

8. The method for preparing the hemp leaf anti-aging facial mask according to claim 1, characterized in that, In step 6, the weight percentages of hemp leaf extract are 0.1-2 parts, hyaluronic acid is 10-20 parts, herbal essential oil is 5-10 parts, glycerol is 1-10 parts, carbomer is 1-5 parts, ethanol is 10-20 parts, and water is 500-5000 parts. The herbal essential oil is one of rose essential oil, jasmine essential oil, lavender essential oil, lotus essential oil, lily essential oil, orchid essential oil.

9. The method for preparing the hemp leaf anti-aging facial mask according to claim 1, characterized in that, In step 7, the amount of the mask base material used is 3-10g / piece.

10. A hemp leaf anti-aging facial mask, characterized in that, It is made by the method described in any one of claims 1-9.

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