CN106667796B - Low-frequency physical therapy mask capable of being attached to face part based on trace biological electromagnetic stimulation - Google Patents
Low-frequency physical therapy mask capable of being attached to face part based on trace biological electromagnetic stimulation Download PDFInfo
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H39/00—Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
- A61H39/002—Using electric currents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61K8/00—Cosmetics or similar toiletry preparations
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- A61K8/00—Cosmetics or similar toiletry preparations
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- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
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- A61K8/733—Alginic acid; Salts thereof
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- A61N1/00—Electrotherapy; Circuits therefor
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- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2205/00—Devices for specific parts of the body
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Abstract
The invention relates to a low-frequency physiotherapy mask capable of being pasted on a face part based on trace biological electromagnetic stimulation, which comprises a mask body, wherein two micro-current stimulation positioning points and 12 physiotherapy stimulation points are arranged on the mask body, the mask body is also provided with an eye exposure port, a lip exposure port and a movable nostril cover plate, two sides of the mask body are provided with convex ear wearing parts, and ear wearing ports are arranged on the ear wearing parts; the outer end of the ear wearing part is provided with a rear machine interface. The facial mask body is a latex film sheet consisting of three layers of composite films, the middle layer is a modified natural latex layer, and the inner layer and the outer layer of the facial mask are both polyvinylpyrrolidone film layers. The modified natural latex layer comprises the following preparation raw materials: natural latex, polyethylene glycol, silk fibroin, propylene glycol alginate and a stabilizer. The physiotherapy facial mask has smooth and soft surface, good fitting degree and air permeability, optimal physical and mechanical properties and plastic formability, and high safety.
Description
Technical Field
The invention belongs to the technical field of medicine, and particularly relates to a low-frequency physiotherapy mask capable of being attached to a face part for pain rehabilitation or prevention.
Background
With the rapid development of economy, the pace of life of people is faster and faster, the workload is heavier and heavier, and the pressure of life, psychological pressure, the endless living, overeating and lack of bad life styles such as exercise and the like cause various discomforts such as fatigue, headache, chest distress, vision deterioration and the like to many people, thereby bringing various troubles to the life of people.
The micro-organism electromagnetic stimulation facial technology is to implement the comprehensive diagnosis and treatment by integrating the past pure magnetic therapy, medical therapy, electrotherapy, acupuncture, massage and the like according to the dialectical relations of the traditional Chinese medicine theory, qi and blood principle, the meridian theory, the magnetotherapy and holography, is more and more concerned by people, is applied to the preparation of magnetic therapy facial masks, for example, the Chinese patent application with the publication number of CN 204699052U, namely 'a magnetic therapy mask' comprises a mask main body and adhesive buckle belts extending from the two sides of the mask main body, the mask main body is divided into a magnetic therapy layer, an essence inner cavity layer and a permeable layer, the magnetic therapy layer is packaged with a plurality of magnetic current coils, the magnetic current coil is electromagnetically connected with a button of a power supply packaged at the lower part of the mask body, the magnetic therapy layer and the edge of the permeable layer are combined to form an essence inner cavity layer, the inner cavity layer of the essence can be injected with the active essence of the facial mask through an injection port on the upper part of the facial mask body. This magnetotherapy facial mask environmental protection health, but cyclic utilization simultaneously with the help of magnetotherapy resonance, the amazing facial acupuncture point promotes facial skin blood circulation, effectively improves the absorption of facial skin activity essence, and accessible facial skin situation, adjustment essence composition for this facial mask has more comprehensive, the facial skin of multiple functions improves the function.
The material of facial mask body among the prior art is cotton or paper non-woven material mostly, and the facial mask body of using this material to make is more difficult with the equipment of electromagnetic pole, and the relevant circuit line that links to each other with the electromagnetic pole in addition also is difficult to fix. As a natural renewable resource, the natural latex has excellent physical and mechanical properties and plastic formability, is widely applied as a medical film material, and is particularly an ideal material for preparing a magnetic therapy mask, but the product of the natural latex is easy to cause skin allergy of a human body, and the surface of the product is easy to be adhered to cause discomfort in wearing, so that the development of a safe and comfortable mask which can fully exert the biological electromagnetic stimulation effect is needed,
disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a low-frequency physiotherapy mask capable of being attached to a face part based on trace biological electromagnetic stimulation.
The technical scheme provided by the invention is as follows:
the invention provides a low-frequency physiotherapy mask capable of being attached to a face part based on trace biological electromagnetic stimulation, which comprises a mask body, wherein two micro-current stimulation positioning points are symmetrically arranged on the mask body along a longitudinal central line, 6 groups of 12 physiotherapy stimulation points are symmetrically arranged on the mask body along the longitudinal central line, the low-frequency physiotherapy mask further comprises a signal input line, the signal input line comprises 6 core wires and 6 core signal input interfaces, and the 6 groups of physiotherapy stimulation points are in one-to-one correspondence earth electric signal connection with the 6 core wires.
Furthermore, the facial mask body is a latex film sheet consisting of three layers of composite films, the middle layer is a modified natural latex layer, and the inner layer and the outer layer of the face patch are both polyvinylpyrrolidone film layers.
The mask body of the invention takes the modified natural latex layer as a main body, and the inner side and the outer side of the mask body are respectively coated with a thin polyvinylpyrrolidone film layer, so that the mask can achieve the best physical and mechanical properties (wear resistance, oil resistance, pressure resistance and toughness) and plastic formability, has high safety, can not cause skin irritation and allergy, is easy to assemble with an electromagnetic pole, is easy to fix a related circuit wire connected with the electromagnetic pole, and is an ideal mask for realizing low-frequency facial physiotherapy based on trace biological electromagnetic stimulation technology.
Further, the modified natural latex layer comprises the following preparation raw materials in parts by weight: 60-100 parts of natural latex, 10-20 parts of polyethylene glycol, 20-60 parts of silk fibroin, 10-20 parts of propylene glycol alginate and 6-12 parts of a stabilizer.
Further, the stabilizer is composed of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1 (0.1-0.6).
Preferably, the modified natural latex layer comprises the following preparation raw materials in parts by weight: 80 parts of natural latex, 14 parts of polyethylene glycol, 30 parts of silk fibroin, 16 parts of propylene glycol alginate and 10 parts of a stabilizer.
Preferably, the stabilizer consists of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1: 0.4.
The silk fibroin is natural high-molecular fiber protein obtained after silk degumming, and has a unique molecular structure and good biocompatibility and mechanical properties. The modified natural latex is prepared by taking natural latex and silk fibroin as base materials, adding polyethylene glycol, propylene glycol alginate and a stabilizer solution, and performing radiation grafting. Under the action of polyethylene glycol, polar groups such as amino, hydroxyl, carboxyl and the like of the fibroin side chain, hydrophilic colloids (proteins, lipoid and the like) in the natural latex and hydrophilic groups of propylene glycol alginate are subjected to crosslinking grafting modification, so that the tensile strength of the obtained modified natural latex film is obviously enhanced, the elongation at break is obviously improved, the smoothness, compactness and affinity of the surface of the latex film are obviously improved, the comfort level of the skin sticking of the modified natural latex film is greatly improved, and the wearing discomfort caused by adhesion on the surface is avoided.
In addition, because the natural latex contains a certain amount of protein and silk fibroin, the heat resistance and the aging resistance of the mask are poor, especially the silk fibroin is unstable, flocculation gel is easy to generate, and the preparation difficulty of the modified natural latex is increased. Through a large number of experiments, the inventor unexpectedly discovers that the phenomenon can be effectively improved by adding a certain amount of nordihydroguaiaretic acid and epoxidized soybean oil, so that the flocculation and precipitation of silk fibroin can not occur in the preparation process of the modified natural latex, and meanwhile, the thermal stability and the aging resistance of the modified natural latex are obviously improved, and the effect is optimal particularly when the nordihydroguaiaretic acid and the epoxidized soybean oil are mixed and applied in a weight ratio of 1: 0.4.
Further, the preparation of the modified natural latex comprises the following steps:
(1) dissolving nordihydroguaiaretic acid in glycerol to prepare a solution with the mass concentration of 10%, then adding epoxidized soybean oil, magnetically stirring for 10-20 min, and uniformly mixing to obtain a stabilizer solution for later use;
(2) taking fibroin, propylene glycol alginate and polyethylene glycol, mixing uniformly, heating to 80-100 ℃, and stirring for 30-60 min at 200-400 r/min to obtain a mixed membrane material for later use;
(3) mixing the natural latex, the mixed membrane material and the stabilizer solution, placing the mixture in a low-speed stirrer, stirring the mixture for 1 to 2 hours at the temperature of 50 ℃, then carrying out gamma-ray radiation treatment for 10 to 20 minutes, taking out the mixture and placing the mixture for 2 to 3 hours, and placing the mixture in a thermostat at the temperature of 60 ℃ to dry and form a membrane to obtain the modified natural latex, wherein the gamma-ray radiation dose is 3 to 20 kGy.
Further, the invention also provides a preparation method of the mask body, which comprises the following steps:
dissolving polyvinylpyrrolidone in water to prepare a solution with the mass concentration of 10%, then placing the modified natural latex into a polyvinylpyrrolidone aqueous solution, soaking for 0.5-1 h, drying at 60 ℃ for 20h, then placing the solution into water with the temperature of 40 ℃ for washing, and continuously drying for 6h at the temperature of 60 ℃ in a vacuum oven to obtain the mask body.
The general structure of the low-frequency physiotherapy mask capable of being attached to the face part based on trace biological electromagnetic stimulation is similar to that of a common mask, and an eye exposure port, a lip exposure port and a movable nostril cover plate are arranged on a mask body. Simultaneously, in order to facilitate the fixed facial mask, prevent that the facial mask from droing, be equipped with convex ear in facial mask body both sides and wear the portion, it wears the mouth to be equipped with the ear in the ear wearing portion, ear is worn the portion outer end and is equipped with the back machine interface.
The low-frequency physiotherapy mask capable of being pasted on the face and based on the trace biological electromagnetic stimulation fully applies the traditional Chinese medicine acupuncture points to regulate and control the body to achieve the purpose of self-healing, reasonably performs programmed control on the relevant acupuncture points on the face, and has high practical value of realizing an automatic adjustment mode in the whole process. When the mask is used, the mask body is attached to the face of a human body, the placing position is corrected through the micro-current stimulation locating points, so that the physical therapy stimulation points are placed on the correct corresponding acupuncture points of the face, at the moment, the mask can work only by connecting a signal source, and therefore the mask is very convenient to use. Wherein, the Cuanzhu can relieve the eye fatigue and brighten the eyes, the Shangyingxiang point can smooth the breath, and the Sibai point can whiten the skin and promote the facial muscles to tighten. The yang-white and taiyang acupoints are effective in refreshing brain, and improving facial muscle nerve and vision. Meanwhile, the trace bioelectric stimulation is the best choice for brainworkers. In addition, the traditional Chinese medicine composition can effectively relieve headache, and has obvious effects on tension type headache, intractable headache, migraine and the like.
In addition, the mask body provided by the invention can be molded according to different face shapes, can be tightly attached to the skin of the face, and can stimulate the acupuncture points of the face by giving energy information through special equipment according to the design, thereby fully playing the low-frequency physical therapy effect of trace biological electromagnetic stimulation and being suitable for different crowds.
Compared with the prior art, the invention has the advantages that:
(1) the low-frequency physiotherapy mask capable of being pasted on the face and based on the trace biological electromagnetic stimulation, provided by the invention, has the advantages that the acupuncture point stimulation is closely combined with the modern science and technology, the acupuncture point on the face is stimulated by means of the magnetic therapy resonance effect, various health care effects are fully exerted, the channels and collaterals can be effectively and rapidly conditioned, the five sense organs diseases caused by excessive use of brain and eyes can be conditioned, the effects of regulating spirit and improving eyesight can be rapidly achieved, the headache can be effectively relieved, and the low-frequency physiotherapy mask is particularly obvious in effects of tension type headache, intractable headache, migraine and the like.
(2) The mask body provided by the invention is prepared by compounding the modified natural latex layer and the polyvinylpyrrolidone film layer, has the best physical and mechanical properties (wear resistance, oil resistance, pressure resistance and toughness) and plastic formability, is high in safety, does not cause skin irritation and allergy, is easy to assemble with an electromagnetic pole, is easy to fix a related circuit line connected with the electromagnetic pole, and is an ideal mask for realizing low-frequency facial physiotherapy based on trace biological electromagnetic stimulation technology.
(3) The surface of the mask body is smooth and soft, so that the skin-adhering comfort level of the mask is greatly improved, the wearing discomfort caused by surface adhesion is avoided, and the stability is good.
Drawings
FIG. 1: a front view of the low-frequency physiotherapy mask capable of being attached to the face part based on trace biological electromagnetic stimulation;
the part names and their designations are as follows: 1. the mask comprises a mask body 2, a micro-current stimulation positioning point 3, a physical therapy stimulation point 4, a core wire 5, a core signal input interface 6, an eye exposure port 7, a lip exposure port 8, a movable nostril cover plate 9, an ear wearing part 10, an ear wearing port 11 and a rear machine interface.
Detailed Description
The present invention will be further described below by way of specific embodiments, but the present invention is not limited to only the following examples.
Example 1 preparation of modified Natural latex
The modified natural latex layer in embodiment 1 of the invention comprises the following preparation raw materials in parts by weight: 80 parts of natural latex, 14 parts of polyethylene glycol, 30 parts of silk fibroin, 16 parts of propylene glycol alginate and 10 parts of a stabilizer, wherein the stabilizer consists of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1: 0.4.
The preparation method comprises the following steps:
(1) dissolving nordihydroguaiaretic acid in glycerol to prepare a solution with the mass concentration of 10%, then adding epoxidized soybean oil, magnetically stirring for 15min, and uniformly mixing to obtain a stabilizer solution for later use;
(2) uniformly mixing fibroin, propylene glycol alginate and polyethylene glycol, heating to 80 deg.C, and stirring at 300r/min for 40min to obtain mixed membrane material;
(3) mixing the natural latex, the mixed membrane material and the stabilizer solution, placing the mixture in a low-speed stirrer, stirring the mixture for 1 hour at 50 ℃, then carrying out gamma-ray radiation treatment for 15 minutes, taking the mixture out, placing the mixture for 2 hours, and placing the mixture in a thermostat at 60 ℃ to dry the mixture into a membrane, thus obtaining the modified natural latex, wherein the gamma-ray radiation dose is 12 kGy.
Example 2 preparation of modified Natural latex
The modified natural latex layer in embodiment 2 of the invention comprises the following preparation raw materials in parts by weight: 100 parts of natural latex, 20 parts of polyethylene glycol, 50 parts of silk fibroin, 18 parts of propylene glycol alginate and 12 parts of a stabilizer, wherein the stabilizer consists of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1: 0.4.
The preparation method is the same as example 1.
Example 3 preparation of modified Natural latex
The modified natural latex layer in embodiment 3 of the invention comprises the following preparation raw materials in parts by weight: 60 parts of natural latex, 10 parts of polyethylene glycol, 20 parts of silk fibroin, 10 parts of propylene glycol alginate and 6 parts of a stabilizer, wherein the stabilizer consists of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1: 0.4.
The preparation method is the same as example 1.
Example 4 preparation of modified Natural latex
The raw materials for preparing the modified natural latex layer in the embodiment 4 of the invention and the weight parts thereof are the same as those in the embodiment 1, and the difference is that the stabilizer consists of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1: 0.1.
The preparation method is the same as example 1.
Example 5 preparation of modified Natural latex
The raw materials for preparing the modified natural latex layer in the embodiment 5 of the invention and the weight parts thereof are the same as those in the embodiment 1, and the difference is that the stabilizer consists of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1: 0.6.
The preparation method is the same as example 1.
Comparative example 1 preparation of modified Natural latex
The raw materials for preparing the modified natural latex layer in the comparative example 1 of the invention and the parts by weight thereof are the same as those in the example 1, except that the stabilizer is epoxidized soybean oil.
The preparation process is referred to example 1.
Comparative example 2 preparation of modified Natural latex
The raw materials for preparing the modified natural latex layer in comparative example 2 of the invention and the parts by weight thereof are the same as those in example 1, except that the stabilizer is composed of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1: 1.
The preparation process is referred to example 1.
Comparative example 3 preparation of modified Natural latex
The modified natural latex layer of comparative example 3 of the invention comprises the following preparation raw materials in parts by weight: 80 parts of natural latex, 14 parts of polyethylene glycol, 30 parts of silk fibroin and 10 parts of stabilizer, wherein the stabilizer consists of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1:0.4
Comparative example 3 differs from example 1 in that the modified natural rubber latex was prepared from a starting material lacking propylene glycol alginate.
The preparation process is referred to example 1.
Example 6 facial mask body preparation
Dissolving polyvinylpyrrolidone in water to prepare a solution with the mass concentration of 10%, then placing the modified natural latex prepared in the embodiment 1 in a polyvinylpyrrolidone aqueous solution, soaking for 1h, drying at 60 ℃ for 20h, then placing in water at 40 ℃ for washing, and continuously drying in a vacuum oven at 60 ℃ for 6h to obtain the mask body.
Further, the modified natural rubber latexes obtained in examples 2 to 5 and comparative examples 1 to 3 were used to prepare mask bodies, respectively, in accordance with the above-mentioned methods.
Example 7 preparation of low frequency physiotherapeutic mask for attachable facial part based on micro-biological electromagnetic stimulation
As shown in figure 1, the low-frequency physiotherapy mask capable of being attached to a face part based on trace biological electromagnetic stimulation comprises a mask body 1 made of a latex film sheet consisting of three layers of composite films, two micro-current stimulation positioning points 2 are symmetrically arranged on the mask body 1 along a longitudinal central line, 6 groups of 12 physiotherapy stimulation points 3 are symmetrically arranged on the mask body 1 along the longitudinal central line, the low-frequency physiotherapy mask further comprises a signal input line, the signal input line comprises 6 core wires 4 and 6 core wire signal input interfaces 5, the 6 groups of physiotherapy stimulation points 3 are in one-to-one correspondence ground electric signal connection with the 6 core wires 4, an eye exposure port 6 is arranged on the mask body, a lip exposure port 7 is arranged on the mask body, a movable nostril cover plate 8 is arranged on the mask body, convex ear parts 9 are arranged on two sides of the mask body, and an ear wearing port 10 is arranged on the ear wearing part, the outer end of the ear wearing part is provided with a rear machine interface 11.
When the low-frequency physiotherapy mask capable of being pasted with the face part and based on the trace biological electromagnetic stimulation is used, the mask body 1 is pasted on the face of a human body, the placement position is corrected through the micro-current stimulation positioning points 2, so that the physiotherapy stimulation points 3 are placed on the correct corresponding acupuncture points of the face, and at the moment, the mask can work only by connecting a signal source, and therefore the mask is very convenient to use.
Test example I, physical and chemical Properties of modified Natural latex
The surface roughness and the density of the modified natural latex layers prepared in examples 1 to 5 and comparative examples 1 to 3 of the present invention were measured, respectively, wherein the surface of the modified natural latex layer was analyzed using an atomic mechanics microscope, and the change in the density was evaluated by measuring the water vapor transmission amount of the modified natural latex layer at 38 ℃.
TABLE 1 results of measuring surface roughness and water vapor transmission of modified Natural latex layer of the invention
As can be seen from table 1 above, the surface roughness of the modified latex layer prepared in examples 1 to 5 of the present invention is significantly improved, less than 45nm, without the phenomena of protrusion and indentation, without significant phase separation, and the surface smoothness and smoothness are better than those of comparative examples 1 to 3, and especially the improved degree of the modified latex layer prepared in example 1 is most significant. Further, the amount of water vapor permeable film of the modified natural latex film was measured under the same conditions of temperature, time, film thickness and area to evaluate the change in density of the film, and it was found that the modified natural latex films prepared in examples 1 to 5 each had a water vapor permeable film amount significantly lower than that of comparative examples 1 to 3 and less than 1.5g/m2D, showing that the components such as silk fibroin, propylene glycol alginate and the like gradually migrate into gaps of the natural latex in the modification process of the natural latex, and increasing the compactness of the blending membrane.
Test example two, biocompatibility test of modified Natural latex
The modified natural rubber latex obtained in examples 1 to 5 of the present invention was subjected to cytotoxicity test, irritation test and sensitization test according to GB/T16886.5-2003 and GB/T16886.10-2005, respectively, and the results are shown in tables 2 and 3 below.
TABLE 2 toxicity test results of modified Natural latices of the present invention on L-929 mouse fibroblasts
| Group of | Phenomenon(s) | Conclusion |
| Example 1 | The cells are arranged densely and regularly, are triangular or fusiform, and have no degeneration or necrosis | Has no toxicity |
| Example 2 | The cells are arranged densely and regularly, are triangular or fusiform, and have no degeneration or necrosis | Has no toxicity |
| Example 3 | The cells are arranged densely and regularly, are triangular or fusiform, and have no degeneration or necrosis | Has no toxicity |
| Example 4 | The cells are arranged densely and regularly, are triangular or fusiform, and have no degeneration or necrosis | Has no toxicity |
| Example 5 | The cells are arranged densely and regularly, are triangular or fusiform, and have no degeneration or necrosis | Has no toxicity |
TABLE 3 test results of acute skin irritation and sensitization of guinea pigs with the modified Natural latices of the present invention
| Group of | Phenomenon of irritation | Conclusion |
| Example 1 | No erythema and edema | Has no irritation or sensitization |
| Example 2 | No erythema and edema | Has no irritation or sensitization |
| Example 3 | No erythema and edema | Has no irritation or sensitization |
| Example 4 | No erythema and edema | Has no irritation or sensitization |
| Example 5 | No erythema and edema | Has no irritation or sensitization |
As is clear from the above tables 2 and 3, the modified natural rubber latex prepared in examples 1 to 5 of the present invention has no influence on the growth of fibroblasts of the L-929 mouse, and does not cause irritative or allergic symptoms such as erythema and edema in the guinea pig, indicating that the modified natural rubber latex provided by the present invention has high safety and excellent biocompatibility.
Third test example, mechanical property detection of mask body of the present invention
Tensile breaking strength and breaking elongation of the mask body mainly made of the modified natural latex prepared in examples 1 to 5 and comparative examples 1 to 3 were measured by using a ZWICKZO 10/TN type material tester of Zwick/Roell, Germany, under the conditions of a test temperature of 20 ℃, a relative humidity of 70%, a holding length of 40mm, and a tensile speed of 50mm/min, and the results are shown in Table 4 below.
Table 4 test results of tensile break strength and elongation at break of the mask body of the present invention
| Group of | Tensile breaking Strength (MPa) | Elongation at Break (%) |
| Example 1 | 14.23±0.48*# | 1673±136*# |
| Example 2 | 14.05±0.53 | 1642±144 |
| Example 3 | 13.91±0.47 | 1603±152 |
| Example 4 | 13.07±0.45 | 1570±145 |
| Example 5 | 13.44±0.52 | 1592±148 |
| Comparative example 1 | 8.86±0.49 | 1416±127 |
| Comparative example 2 | 10.06±0.40 | 1478±123 |
| Comparative example 3 | 11.84±0.43 | 1501±142 |
Note: in comparison with comparative example 1,#p is less than 0.05, compared with comparative example 2,*P＜0.05。
as can be seen from table 4 above, the mask body made of the modified natural latex prepared in examples 1 to 5 and comparative examples 1 to 3 has higher tensile breaking strength and elongation at break, especially the tensile breaking strength and elongation at break of the mask body in example 1 are the best, and have significant difference from those of comparative examples 1 and 2, which indicates that the tensile breaking strength and elongation at break of the mask can be enhanced by adding a proper amount of stabilizer, especially when the stabilizer is used in combination with nordihydroguaiaretic acid and epoxy soybean oil in a weight ratio of 1:0.4, the effect is better, and is significantly better than that when the stabilizer is used in combination with the weight ratio of 1: 1. In addition, the addition of a proper amount of propylene glycol alginate has a certain effect on improving the tensile breaking strength and the breaking elongation of the mask.
Test example four, aging resistance test of mask body of the present invention
The mask body prepared by using the modified natural latex prepared in example 1 and comparative examples 1 to 3 as a main body was subjected to damp-heat and dry-heat aging tests, wherein the test conditions of the damp-heat aging test were as follows: the temperature is 70 ℃, the relative humidity is 95%, and the wind speed is 0.30 m/s; the test conditions for dry heat aging were: the temperature is 70 ℃, the relative humidity is 25 percent, and the wind speed is 0.30 m/s; the sheets were left alone for 30 days, and the tensile properties and shear strengths before and after the test were measured, and the results are shown in tables 5 and 6 below.
TABLE 5 test results of damp-heat aging of mask body of the present invention
TABLE 6 detection results of dry heat aging of mask body of the present invention
As can be seen from the above tables 5 and 6, the mask body mainly prepared from the modified natural latex prepared in example 1 of the present invention has better aging resistance under both hot and humid conditions, the transverse tensile strength retention rate is 103.73/106.28MPa, and the longitudinal and transverse shear strength retention rate is 97.84/100.27MPa, which are all more significant than those of comparative examples 1-3.
Test example four evaluation of degree of attachment and air permeability of mask body of the present invention
Selecting 80 healthy facial skin volunteers, randomly dividing into 4 groups, namely an example 1 group and a comparative example 1-3 group, respectively wearing a mask body prepared by taking the modified natural latex prepared in the example 1 and the comparative example 1-3 as a main body, and carrying out blind test scoring, wherein the weight is 0-1: poor quality, 2-3 min: better; 3-4 min: good, 4-5 cents: most preferably. The results of evaluating whether the mask was applied to the skin and had a greasy feeling and an air-impermeable feeling are shown in Table 7.
TABLE 7 evaluation results of the fit and air permeability of the mask body of the present invention
| Group of | Degree of adhesion | Air permeability |
| Example 1 | 3.84±0.42 | 4.05±0.38 |
| Comparative example 1 | 3.65±0.38 | 3.69±0.40 |
| Comparative example 2 | 3.72±0.40 | 3.92±0.42 |
| Comparative example 3 | 3.60±0.44 | 3.81±0.37 |
As is clear from Table 7 above, the mask bodies produced from the modified natural rubber latexes obtained in example 1 and comparative examples 1 to 3 had good fitting degree and air permeability, and had no greasy feeling and no air-impermeable feeling when worn.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (8)
1. The low-frequency physiotherapy mask capable of being attached to the face part based on trace biological electromagnetic stimulation is characterized by comprising a mask body, wherein two micro-current stimulation positioning points are symmetrically arranged on the mask body along a longitudinal central line, 6 groups of physiotherapy stimulation points which are 12 in total are symmetrically arranged on the mask body along the longitudinal central line, the low-frequency physiotherapy mask further comprises a signal input line, the signal input line comprises 6 core wires and 6 core signal input interfaces, and the 6 groups of physiotherapy stimulation points are in one-to-one correspondence earth electric signal connection with the 6 core wires;
the facial mask body is a latex film sheet consisting of three layers of composite films, wherein the middle layer is a modified natural latex layer, and the inner layer and the outer layer of the facial mask are both polyvinylpyrrolidone film layers;
the modified natural latex layer comprises the following preparation raw materials in parts by weight: 60-100 parts of natural latex, 10-20 parts of polyethylene glycol, 20-60 parts of silk fibroin, 10-20 parts of propylene glycol alginate and 6-12 parts of a stabilizer.
2. The low-frequency physiotherapy mask capable of being applied to the face based on the micro-biological electromagnetic stimulation, as claimed in claim 1, wherein the stabilizer is composed of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1 (0.1-0.6).
3. The low-frequency physiotherapy mask capable of being attached to the face based on the micro-biological electromagnetic stimulation, according to claim 1, wherein the modified natural latex layer comprises the following preparation raw materials in parts by weight: 80 parts of natural latex, 14 parts of polyethylene glycol, 30 parts of silk fibroin, 16 parts of propylene glycol alginate and 10 parts of a stabilizer.
4. The patch of low frequency physiotherapy mask as claimed in claim 2, wherein the stabilizer is composed of nordihydroguaiaretic acid and epoxidized soybean oil in a weight ratio of 1: 0.4.
5. The low-frequency physiotherapy mask capable of being attached to the face based on the micro-biological electromagnetic stimulation according to any one of claims 1 to 4, wherein the preparation of the mask body comprises the following steps:
dissolving polyvinylpyrrolidone in water to prepare a solution with the mass concentration of 10%, then placing the modified natural latex into a polyvinylpyrrolidone aqueous solution, soaking for 0.5-1 h, drying at 60 ℃ for 20h, then placing the solution into water with the temperature of 40 ℃ for washing, and continuously drying for 6h at the temperature of 60 ℃ in a vacuum oven to obtain the mask body.
6. The low-frequency physiotherapy mask for the attachable face based on the micro-organism electromagnetic stimulation according to claim 5, wherein the preparation of the modified natural latex comprises the following steps:
(1) dissolving nordihydroguaiaretic acid in glycerol to prepare a solution with the mass concentration of 10%, then adding epoxidized soybean oil, magnetically stirring for 10-20 min, and uniformly mixing to obtain a stabilizer solution for later use;
(2) taking fibroin, propylene glycol alginate and polyethylene glycol, mixing uniformly, heating to 80-100 ℃, and stirring for 30-60 min at 200-400 r/min to obtain a mixed membrane material for later use;
(3) mixing the natural latex, the mixed membrane material and the stabilizer solution, placing the mixture in a low-speed stirrer, stirring the mixture for 1 to 2 hours at the temperature of 50 ℃, then carrying out gamma-ray radiation treatment for 10 to 20 minutes, taking out the mixture and placing the mixture for 2 to 3 hours, and placing the mixture in a thermostat at the temperature of 60 ℃ to dry and form a membrane to obtain the modified natural latex, wherein the gamma-ray radiation dose is 3 to 20 kGy.
7. The low-frequency physiotherapy mask capable of being pasted on the face part based on the micro-organism electromagnetic stimulation as claimed in claim 1, wherein the mask body is provided with an eye exposure port, a lip exposure port and a movable nostril cover plate.
8. The low-frequency physiotherapy mask capable of being pasted with the face part and based on the micro-organism electromagnetic stimulation according to claim 1, wherein two sides of the mask body are provided with protruding ear wearing parts, and ear wearing openings are formed in the ear wearing parts; the outer end of the ear wearing part is provided with a rear machine interface.
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