MULTIFUNCTIONAL TEMPERATURE SELF-REGULATING FILM AND FACE MASK AND EYE MASK MANUFACTURED THEREFROM

Abstract

The present invention discloses a multifunctional temperature self-regulating multilayer film, from outside to inside comprising at least: a carrier layer (1) loaded with functional material, and a thermal-insulation layer (2) directly contacted with the skin (4); wherein the carrier layer (1) loaded with functional material has a sealed cavity sealed with a flexible water-impermeable material, the sealed cavity is at least loaded with a refrigerating or heat-generating chemical material (11); wherein thermal-insulation layer (2) is made of a material having waterproof and thermal-insulation properties. The present multilayer film can be manufactured into a face mask or eye mask for use on facial skin.

Claims

1. A multifunctional temperature self-regulating film, from outside to inside, comprising at least: a carrier layer loaded with functional materials, and a thermal-insulation layer directly contacted with the skin; wherein the carrier layer loaded with functional materials has a sealed cavity sealed with a flexible water-impermeable material, the sealed cavity is at least loaded with a refrigerating or heat-generating chemical material; wherein the thermal-insulation layer is made of a material having waterproof and thermal-insulation properties; wherein the thermal-insulation layer is a metal plating film made of metal and polyethylene terephthalate, oriented polypropylene, nylon, polyethylene or cast polypropylene film.

2. The multifunctional temperature self-regulating film according to claim 1, wherein the thermal-insulation layer is a metallized polyethylene terephthalate film made of polyethylene terephthalate film and metal.

3. The multifunctional temperature self-regulating film according to claim 2, wherein the metal used for the metallized polyethylene terephthalate film is aluminum, nickel, chromium or a mixture thereof.

4. The multifunctional temperature self-regulating film according to claim 1, wherein the flexible water-impermeable material is made of plastics, synthetic rubbers, synthetic fibers, waterproof fabrics or waterproof papers.

5. The multifunctional temperature self-regulating film according to claim 4, wherein the flexible water-impermeable material is transparent.

6. The multifunctional temperature self-regulating film according to claim 1, wherein the sealed cavity is loaded with a solid-liquid phase change material which generates heat when the material changes from liquid to solid, and an actuating means which is used to trigger an exothermic state of the solid-liquid phase change material.

7. The multifunctional temperature self-regulating film according to claim 6, after the liquid-to-solid phase change process of the solid-liquid phase change material has been triggered, the film maintains a heating temperature at 40° C. to 55° C., and the heating time lasts 5 to 30 minutes.

8. The multifunctional temperature self-regulating film according to claim 7, wherein the solid-liquid phase change material is an oversaturated aqueous solution of sodium acetate, the actuating means is a flexible metal disc which takes a shape of an arc and has a plurality of corrugations on its surface, and the flexible metal disc is located in the oversaturated aqueous solution of sodium acetate.

9. The multifunctional temperature self-regulating film according to claim 8, wherein the oversaturated aqueous solution of sodium acetate is added with a nucleating agent.

10. The multifunctional temperature self-regulating film according to claim 9, wherein the nucleating agent is selected from one or more of the group consisting of sodium borate, sodium sulfate, sodium silicate, sodium pyrophosphate, and sodium phosphate dibasic dodecahydrate.

11. The multifunctional temperature self-regulating film according to claim 6, wherein at least one side of the carrier layer is provided with a fluid reservoir; the fluid reservoir and the carrier layer are manufactured in one piece, and they are interconnected by an existing one-way valve; the fluid reservoir is loaded with fluid, when the fluid reservoir is pressed by an external force, the fluid loaded in the fluid reservoir is injected into the carrier layer through the one-way valve to adjust the temperature of the carrier layer.

12. The multifunctional temperature self-regulating film according to claim 1, wherein the sealed cavity is loaded with a solid refrigerating chemical material which absorbs heat when the material changes from solid to liquid; at least one side of the carrier layer is provided with a fluid reservoir; the fluid reservoir and the carrier layer are manufactured in one piece, and they are interconnected by an existing one-way valve; the fluid reservoir is loaded with fluid, when the fluid reservoir is pressed by an external force, the fluid loaded in the fluid reservoir is injected into the carrier layer through the one-way valve to dissolve the solid refrigerating chemical material, such that the solid refrigerating chemical material changes from solid to liquid to absorb heat and lower the temperature of the film.

13. The multifunctional temperature self-regulating film according to claim 12, after the solid-to-liquid phase change process of the solid refrigerating chemical material has been triggered, the film maintains a cooling temperature at −3° C. to 20° C., and the cooling time lasts 5 to 30 minutes.

14. The multifunctional temperature self-regulating film according to claim 12, wherein the solid refrigerating chemical material is selected from one or more of the group consisting of urea, ammonium chloride and ammonium nitrate, and the fluid loaded in the fluid reservoir is clean water; wherein the weight ratio of the solid refrigerating chemical material to the clean water is 1:1.

15. The multifunctional temperature self-regulating film according to claim 11, wherein a suitable amount of thickener is added in the fluid loaded in the fluid reservoir.

16. The multifunctional temperature self-regulating film according to claim 11, wherein the sealed cavity and/or the fluid reservoir is further loaded with a pigment.

17. The multifunctional temperature self-regulating film according to claim 1, wherein the film is ergonomically designed in shape to be applied to various body parts.

18. The multifunctional temperature self-regulating film according to claim 17, wherein there is provided a layer of water-soluble hydrogel on the surface of the thermal-insulation layer that is in contact with the skin, the layer of soluble hydrogel being used for adhering the film to the skin.

19. The multifunctional temperature self-regulating film according to claim 18, wherein there is provided an active ingredient of a topically-applied healthcare product, a topically-applied medicine or a skincare product in the layer of water-soluble hydrogel.

20. (canceled)

21. The multifunctional temperature self-regulating film according to claim 17, wherein the film face mask is 2 mm to 15 mm thick.

22. A method of using the multifunctional temperature self-regulating film according to claim 17, wherein the film is used in combination with a topically-applied medicine, a health care product, a skincare product or a traditional nourishing face mask.

23. A multifunctional temperature self-regulating three-dimensional face mask which has a facial concave-convex shape formed by joining two sheets together, wherein the face portion of the three-dimensional face mask is made of the multifunctional temperature self-regulating film according to claim 17.

24-41. (canceled)

42. The multifunctional temperature self-regulating three-dimensional face mask according to claim 23, wherein the three-dimensional face mask comprises a left side sheet and a right side sheet respectively matching the left area of the face and the right area of the face, front edge portions of the left side sheet and the right side sheet are provided with an adhesive material, the left side sheet and the right side sheet are thereby adhered together by the adhesive material along a median line of the face to form a facial concave-convex shape.

43. The multifunctional temperature self-regulating three-dimensional face mask according to claim 42, wherein either of the front edge portions of the left side sheet and the right side sheet has a protrusion projecting outwards from above down and matching the shape of the left area or right area of the external nose, a mouth portion which is a notch matching the mouth is provided below the protrusion, a portion of the front edge portion below the notch has an arc shape with a certain radian and extends downwards to the bottom the face mask; except the notch matching the mouth, either of the front edge portions of the left side sheet and the right side sheet is provided with an adhesive material, and the left side sheet and the right side sheet are thereby adhered together by the adhesive material.

44. The multifunctional temperature self-regulating three-dimensional face mask according to claim 43, wherein a glabella portion of either of the front edge portions of the left side sheet and the right side sheet which faces a space between the user's eyebrows, just above the protrusion, is formed as an arc which is slightly concaved inwards.

45. The multifunctional temperature self-regulating three-dimensional face mask according to claim 43, wherein an eye-and-glabella portion of either of the front edge portions of the left side sheet and the right side sheet which faces the user's eyes and glabella, just above the protrusion, is formed as a notch which is concaved inwards; except the eye-and-glabella portion and the mouth portion, either of the front edge portions of the left side sheet and the right side sheet are provided with an adhesive material, and the left side sheet and the right side sheet are thereby adhered together by the adhesive material.

46. The multifunctional temperature self-regulating three-dimensional face mask according to claim 42, there is a fixing strap provided on either of the rear edge portions of the left side sheet and the right side sheet, and there is a velcro provided at the end of the fixing strap.

47. A method of using the multifunctional temperature self-regulating three-dimensional face mask according to claim 23, wherein the three-dimensional face mask is used in combination with a topically-applied medicine, a health care product, a skincare product or a traditional nourishing face mask.

48. A multifunctional temperature self-regulating face mask, wherein the face portion of the face mask is made of the multifunctional temperature self-regulating film according to claim 17.

49-66. (canceled)

67. The multifunctional temperature self-regulating face mask according to claim 48, wherein the face mask has notches matching the user's nose and mouth, respectively.

68. The multifunctional temperature self-regulating face mask according to claim 67, wherein the face mask also has notches matching the user's eyes.

69. The multifunctional temperature self-regulating face mask according to claim 68, wherein there is a fixing strap provided on either side of the face mask, and there is a velcro provided at the end of the fixing strap.

70. A method of using the multifunctional temperature self-regulating face mask according to claim 48, wherein the face mask is used in combination with a topically-applied medicine, a health care product, a skincare product or a traditional nourishing face.

71. A multifunctional temperature self-regulating eye mask, wherein the eye portion of the eye mask is made of the multifunctional temperature self-regulating film according to claim 17.

72-89. (canceled)

90. The multifunctional temperature self-regulating eye mask according to claim 71, wherein the eye mask comprises hanging parts which have ears slits and can be hung on the user's ears.

91. The multifunctional temperature self-regulating eye mask according to claim 90, wherein a slit is vertically cut along a lower half of a central vertical axis of the eye mask.

92. The multifunctional temperature self-regulating film according to claim 12, wherein a suitable amount of thickener is added in the fluid loaded in the fluid reservoir.

93. The multifunctional temperature self-regulating film according to claim 12, wherein the sealed cavity and/or the fluid reservoir is further loaded with a pigment.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0076] FIG. 1 is a schematic view of a multifunctional temperature self-regulating multilayer film according to Example 1 of the present invention.

[0077] FIG. 2 is a schematic view showing the multifunctional temperature self-regulating multilayer film of FIG. 1, with the film being in use.

[0078] FIG. 3 is a schematic view of a multifunctional temperature self-regulating multilayer film according to Example 2 of the present invention.

[0079] FIG. 4 is a schematic view of a multifunctional temperature self-regulating multilayer film according to Example 3 of the present invention.

[0080] FIG. 5 is a schematic view of a multifunctional temperature self-regulating multilayer film according to Example 4 of the present invention.

[0081] FIG. 6 is a schematic view of a multifunctional temperature self-regulating multilayer film according to Example 5 of the present invention.

[0082] FIG. 7 is a schematic view of a face mask made from the multifunctional temperature self-regulating multilayer film according to Example 6 of the present invention.

[0083] FIG. 8 is a schematic showing the structure of the multifunctional temperature self-regulating three-dimensional face mask according to Example 7 of the present invention.

[0084] FIG. 9 is a schematic view showing a three-dimensional face mask consisting of the right side sheet and left side sheet of FIG. 8 when the right side sheet and left side sheet are adhered together.

[0085] FIG. 10 is a schematic view showing a concave-convex shape of the three-dimensional face mask of FIG. 8 when the three-dimensional face mask is attached to the user's face.

[0086] FIG. 11 shows a sectional view of a face portion of the three-dimensional face mask of FIG. 8, with the face portion having a structure of two layers.

[0087] FIG. 12 is a schematic view showing the structure of a multifunctional temperature self-regulating three-dimensional face mask according to Example 8 of the present invention.

[0088] FIG. 13 is a schematic view showing a three-dimensional face mask consisting of the right side sheet and left side sheet of FIG. 12 when the right side sheet and left side sheet are adhered together.

[0089] FIG. 14 is a schematic view showing a concave-convex shape of the three-dimensional face mask of FIG. 12 when the three-dimensional face mask is attached to the user's face.

[0090] FIG. 15 is a schematic view showing the structure of a multifunctional temperature self-regulating three-dimensional face mask according to Example 10 of the present invention.

[0091] FIG. 16 is a schematic view showing a three-dimensional face mask consisting of the right side sheet and left side sheet of FIG. 15 when the right side sheet and left side sheet are adhered together.

[0092] FIG. 17 is a schematic view showing the structure of a multifunctional temperature self-regulating three-dimensional face mask according to Example 11 of the present invention.

[0093] FIG. 18 is a schematic view showing a three-dimensional face mask consisting of the right side sheet and left side sheet of FIG. 17 when the right side sheet and left side sheet are adhered together.

[0094] FIG. 19 is a schematic view of a multifunctional temperature self-regulating face mask according to Example 12 of the present invention.

[0095] FIG. 20 shows a sectional view of a face portion of the face mask of FIG. 19, with the face portion having a structure of two layers.

[0096] FIG. 21 is a schematic view of a multifunctional temperature self-regulating face mask according to Example 13 of the present invention.

[0097] FIG. 22 is a schematic view of a multifunctional temperature self-regulating face mask according to Example 15 of the present invention.

[0098] FIG. 23 is a schematic view of a multifunctional temperature self-regulating face mask according to Example 16 of the present invention.

[0099] FIG. 24 is a schematic view of a multifunctional temperature self-regulating eye mask according to Example 17 of the present invention.

[0100] FIG. 25 shows a sectional view of an eye portion of the eye mask of FIG. 24, with the eye portion having a structure of two layers.

[0101] FIG. 26 is a schematic view of a multifunctional temperature self-regulating eye mask according to Example 18 of the present invention.

[0102] FIG. 27 is a schematic view of a multifunctional temperature self-regulating eye mask according to Example 20 of the present invention.

[0103] FIG. 28 is a schematic view of a multifunctional temperature self-regulating eye mask according to Example 21 of the present invention.

DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS

[0104] The present invention will be described in detail in connection with the following preferred embodiments, and it will be appreciated that such embodiments are merely exemplary, the invention is not to be limited to the disclosed embodiments, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope thereof.

EXAMPLE 1

[0105] As shown in FIG. 1, the multifunctional temperature self-regulating multilayer film comprises a structure of two layers: a carrier layer 1 loaded with functional material and a thermal-insulation layer 2; wherein the carrier layer 1 is loaded with refrigerating or heat-generating chemical material 11. FIG. 2 is a schematic view showing the state during use of the multifunctional temperature self-regulating multilayer film of FIG. 1, the thermal-insulation layer 2 is in contact with the skin 4.

[0106] In this example, the carrier layer 1 loaded with functional material and the thermal-insulation layer 2 are adhered together by, for example, the adhesive or thermal bonding, so they are applied to the skin as a whole. In some cases, the thermal-insulation layer 2 is not adhered together with the carrier layer 1 loaded with functional material. That is, in use, the thermal-insulation layer is first applied to the skin, then the carrier layer 1 loaded with functional material is applied, and the similar effect can also be obtained.

[0107] In this example, the carrier layer 1 loaded with functional material is made of transparent PVC material. In practice, just be sure that the carrier layer 1 loaded with functional material is made of transparent and flexible water-impermeable material, the existing water-impermeable fabrics, papers and synthetic fibers etc. can be suitable. The volume of the carrier layer 1 loaded with functional material varies depending upon the refrigerating or heat-generating chemical material and the amount thereof, and the desired heating/cooling temperature. The shape of the present film depends upon the body part to be applied to. The thermal-insulation layer 2 is formed by a PET aluminum film made of PET and silvery aluminum. Aluminum has a lower melting point, so it can be easily changed from solid to gas by heating under vacuum. Compared with other film, PET film has better heat resistance and compatibility with aluminum. PET aluminum film has a reflective silvery surface, which can reflect heat back. The heat reflectivity of a PET aluminum film with a thickness of 400° A is almost 90%, so it has excellent heat-insulation effect. In addition, PET aluminum film also has good water and gas barrier property.

EXAMPLE 2

[0108] FIG. 3 is a schematic view of a multifunctional temperature self-regulating multilayer film according to Example 2 of the present invention. Compared with Example 1, there is also provided a water-soluble hydrogel layer 3 on the surface of the thermal-insulation layer 2 that is in contact with the skin, so as to adhere the multilayer film to the user's body. In practice, the water-soluble hydrogel layer 3 may comprise an active ingredient of a topically-applied healthcare product, a topically-applied medicine or a skincare product.

EXAMPLE 3

[0109] FIG. 4 is a schematic view of a multifunctional temperature self-regulating multilayer film according to Example 3 of the present invention. In this example, the functional material 11 loaded in the carrier layer 1 is a sodium acetate solution at a concentration of 80-90%, and a stainless steel disc 12 which is concave in shape is also loaded in the carrier layer 1. The carrier layer 1 loaded with functional material is made of transparent OPP film, so the stainless steel disc 12 can be seen by the user. When a hot compress is needed, press the stainless steel disc 12 with the hand to cause sodium acetate to form crystals and release heat. In this example, the multilayer film can be reused when immersing it into hot water at about 80° C. for 2-3 minutes to dissolve the crystals. In order to increases the using life of the film, the nucleating agent, 10 wt. % sodium sulfate, is added in the oversaturated aqueous solution of sodium acetate. In other examples, the nucleating agent may be 10 wt. % sodium silicate, sodium pyrophosphate, sodium phosphate dibasic dodecahydrate or mixture thereof. The present film can be reused for hundreds of times. In addition, a little red pigment is also added in the oversaturated aqueous solution of sodium acetate to improve the esthetic effect of the film.

EXAMPLE 4

[0110] FIG. 5 is a schematic view of a multifunctional temperature self-regulating multilayer film according to Example 4 of the present invention. Compared with Example 3, the carrier layer 1 loaded with functional material in Example 4 is provided with two fluid reservoirs 15 on its two sides. The fluid reservoir 15 is loaded with clean water 14. The fluid reservoir 15 and the carrier layer 1 are manufactured in one piece, and they are interconnected by the existing one-way valve 13. When a user wants to adjust the temperature of the carrier layer 1 loaded with functional material or wants a cold compress following a hot compress, he only needs to press the fluid reservoirs 15 with hand to make the clean water 14 loaded in the fluid reservoir 15 flow to the carrier layer 1 and mix with the sodium acetate crystals, then the cooling effect would be achieved due to endothermic reaction. In use, the addition of clean water 14 decreases the concentration of the oversaturated aqueous solution of sodium acetate, so the phase balance of the oversaturated aqueous solution of sodium acetate loaded in the carrier layer 1 is broken, when the film is used again later, the heating temperature is a little lower than before.

EXAMPLE 5

[0111] FIG. 6 is a schematic view of a multifunctional temperature self-regulating multilayer film according to Example 5 of the present invention. In this example, the functional material 11 loaded in the carrier layer 1 is urea (120 g). The fluid reservoir 15 is loaded with clean water 14 (120 g), and the fluid reservoir 15 and the carrier layer 1 are manufactured in one piece, and they are interconnected by the existing one-way valve 13. When a user wants a cold compress, he only needs to press the fluid reservoirs 15 with hand to make the clean water 14 loaded in the fluid reservoir 15 flow to the carrier layer 1 and mix with urea, then the cooling effect would be achieved due to endothermic reaction.

EXAMPLE 6

[0112] FIG. 7 is a schematic view of a face mask made from the multifunctional temperature self-regulating multilayer film according to Example 6 of the present invention. In this example, the functional material 11 loaded in the carrier layer 1 is a sodium acetate solution at a concentration of 80-90%, and the fluid reservoir 15 is made into a long and narrow strip shape. Either of the fluid reservoirs 15 is provided with a velcro 16 which is used to connect the two fluid reservoirs 15 together, so as to attach the face mask to the user's head. In other example, the velcro 16 may be replaced with a lacing or fastener extending from the fluid reservoir 15. The clean water injected into the carrier layer 1 may accumulate at the bottom of the film due to gravity, which may cause an uneven temperature distribution. In order to avoid this, a little thickener (such as pectin) is added in the clean water 14. In use, the user should press the stainless steel disc 12 to cause the face mask to release heat and apply a skincare product to the face, then apply the face mask to the face; and after the face mask has cooled to room temperature, he can press the fluid reservoirs 15 with hand to make the clean water 14 loaded in the fluid reservoir 15 flow to the carrier layer 1 and mix with the sodium acetate crystals, the process would absorb heat and refrigerate the face mask; the refrigerated face mask can be applied to the face again to cool the face skin. By the above processes, a cold compress following a hot compress can be available, which can improve the absorption of the skincare products and shrink the skin pores.

COMPARATIVE EXAMPLE 1

[0113] The face mask in Comparative Example 1 is similar to that in Example 6 except that no thermal-insulation layer 2 is provided, and it is used in the same way as described in Example 6.

[0114] The results show that the duration of the heat generation (in a heat range above 37° C.). for the face mask in Example 6 is about 35 minutes, while it is only about 20 minutes for the face mask in Comparative Example 1; and the duration of the refrigeration for the face mask in Example 6 is about 30 minutes, while it is only about 20 minutes for the face mask in Comparative Example 1. In addition, it has been demonstrated in experiments that due to the thermal-insulation layer according to the invention the heat generation/refrigeration in Example 6 is significantly more homogeneous than that in Comparative Example 1, that is, the face mask in Example 6 overcomes the problem of the face mask in Comparative Example 1 which is either too hot or too cold for most of the time it is being used. Compared with Comparative Example 1, the face mask in Example 6 improves the absorption effect of the skincare and the moisture content of the skin.

EXAMPLE 7

[0115] The example mainly relates to a three-dimensional face mask which has a facial concave-convex shape formed by joining two sheets together. Compared with the traditional face mask made from a single sheet of material, the three-dimensional face mask can fit the face better, so as to uniformly clean and nourish the face skin.

[0116] As shown in FIG. 8, the three-dimensional face mask 10 comprises a left side sheet 11 and a right side sheet 12 respectively matching the left area of the face and the right area of the face. Either of the front edge portions 111, 121 of the left side sheet 11 and the right side sheet 12 is provided with an adhesive material, and the left side sheet 11 and the right side sheet 12 are thereby adhered together by adhesive material along the median line of the face. FIG. 9 is a schematic view showing a face mask consisting of the right side sheet and left side sheet of FIG. 8 when the right side sheet and left side sheet are adhered together.

[0117] In this example, the left side sheet 11 and the right side sheet 12 are symmetrical along the median line of the face. Of course, the present application is not limited to this, the left side sheet 11 and the right side sheet 12 may also be unsymmetrical in other examples. However, from the perspective of somatology, it is easier to fit the face when the two sheets are symmetrical. Since the two sheets are adhered together to form a facial concave-convex shape, it is possible to keep this three-dimensional face mask completely adhering to every facial curve, so as to overcome the deficiencies of the traditional face mask, which is built from a single mask sheet and is liable to wrinkle and slack, thereby the traditional one-piece face mask cannot be uniformly and reliably applied to the face and affects the cosmetic and cleaning effect.

[0118] As shown in FIG. 8, either of the front edge portion 111 of the left side sheet 11 and the front edge portion 121 of the right side sheet 12 is provided with a protrusion 112,122 projecting outwards from above down and matching the shape of the left area or right area of the external nose. A notch 113,123 corresponding to the mouth is respectively provided below the protrusion112, 122. After the two sheets are joined together, the notch 113, 123 are joined and form a mouth portion matching the mouth. There is no adhesive material provided on the notch 113, 123 of the front edge portion 111,121. The portion of the front edge portion below the notch 113,123 respectively has an arc shape 114,124 with a certain radian and extends downwards to the bottom the face mask. Since either of the front edge portion 111 of the left side sheet 11 and front edge portion 121 of the right side sheet 12 has a protrusion projecting outwards from above down and matching the shape of the left area or right area of the external nose, after the left side sheet 11 and the right side sheet 12 are joined together, the three-dimensional face mask would naturally have a nose-like protrusion from above down on the user's nose, so as to reliably fit the nose. Since the portion of the front edge portion 111, 121 below the notch 113, 123 respectively has an arc shape with a certain radian and extends downwards to the bottom the face mask, after the left side sheet 11 and the right side sheet 12 are joined together, the lower half of the face mask has a curved surface which can reliably fit the jaw, so as to improve the adherence to the face.

[0119] FIG. 10 shows the concave-convex shape of the three dimensional face mask which has been applied to the user's face. A nose-like protrusion is formed after the protrusion112, 122 are joined together, and an elliptical notch corresponding to the mouth is formed after the notch 113, 123 are joined together, and a curved surface is formed after the arc shape 114,124 are joined together, so as to fit the lower face and jaw. It can be seen that compared with the traditional sheet-mask, the present three-dimensional face mask fits the user's face which has a concave-convex shape better, so that it can be uniformly applied to the entire face and uniformly clean and nourish the face skin.

[0120] Preferably, a notch 115,125 which is concaved inwards is provided on the eye-and-glabella portion of either of the front edge portion 111, 121 of the left side sheet 11 and the right side sheet 12 which faces the user's eyes and glabella, just above the protrusion 112, 122. The notch 114, 124 can be almost semielliptical or semicircular, as long as the eyes are uncovered but the skin around the eyes is almost covered. On either of the front edge portions 111,121 of the left side sheet 11 and the right side sheet 12, neither the notch 113, 123 corresponding to the mouth nor the notch 115,125 corresponding to the eye-and-glabella is provided with adhesive material. That is, the left side sheet and the right side sheet are provided with an adhesive material on either of the front edge portions, except the notch 113, 123 corresponding to the mouth and the notch 115,125 corresponding to the eye-and-glabella, and the left side sheet and the right side sheet are thereby adhered together by the adhesive material.

[0121] Preferably, as shown in FIG. 8, the rear edge portions of the left side sheet 11 and the right side sheet 12 are respectively provided with a fixing strap 118, 128, and preferably, the fixing strap 118, 128 are respectively provided with a velcro 119, 129. After applied to the face, the three-dimensional face mask can be attached to the user's head by the fixing strap and tighten by the velcro. The velcro, also known as hook-and-loop or hook-and-pile, is a common fastener used on the clothes, which is consisted of two components, typically, the first component features tiny hooks; the second features even smaller and “hairier” loops.

[0122] In this example, as shown in FIG. 11, either of the face portions 116, 126 of the left side sheet 11 and the right side sheet 12 of the three-dimensional face mask 10 comprises a structure of two layers: a carrier layer 131 loaded with functional material and a thermal-insulation layer 132; wherein the carrier layer 131 is loaded with refrigerating or heat-generating chemical material 1311. As shown in FIG. 11, the thermal-insulation layer132 is in contact with the skin 14.

[0123] In this example, the carrier layer 131 loaded with functional material and the thermal-insulation layer 132 are adhered together by, for example, the adhesive or thermal bonding, so they are applied to the skin as a whole. In some cases, the thermal-insulation layer 132 is not adhered together with the carrier layer 131 loaded with functional material. That is, in use, the thermal-insulation layer is first applied to the skin, then the carrier layer 131 loaded with functional material is applied, and the similar effect can also be obtained.

[0124] In this example, the carrier layer 131 loaded with functional material is made of transparent PVC material. In this example, the functional material 1311 loaded in the carrier layer 131 is a sodium acetate solution at a concentration of 80-90%, and a stainless steel disc 1312 which is concave in shape is also loaded in the carrier layer 131. The carrier layer 131 loaded with functional material is made of transparent OPP film, so the stainless steel disc 1312 can be seen by the user. When a hot compress is needed, press the stainless steel disc 1312 with the hand to cause sodium acetate to form crystals and release heat.

[0125] In this example, the thermal-insulation layer 132 is formed by a PET aluminum film made of PET and silvery aluminum.

EXAMPLE 8

[0126] FIGS. 12-14 show the structure of a multifunctional temperature self-regulating three-dimensional face mask according to Example 8. The difference of Example 8 over example 7 is that the three-dimensional face mask in Example 8 is inclosed except that there is provided a notch corresponding to the user's mouth. That is to say, there is no notch provided on the eye and eyebrow portions of the front edge portion 211 of the left side sheet 21 and the front edge portion 221 of the right side sheet 22. In this example, either of the glabella portions of the front edge portions 211, 221 of the left side sheet 21 and the right side sheet 22 which faces a space between the user's eyebrows, just above the protrusion 212, 222, is formed as an arc 215, 225 which is slightly concaved inwards. The arc 215, 225 is provided with an adhesive material. Due to the arc 215, 225, after the left side sheet 21 and the right side sheet 22 are joined together, the three-dimensional face mask would have a slight concave on the arc 215, 225, such that the three-dimensional face mask reliably fits the concave on the user's glabella-and-nasion portion, just as shown in FIG. 14. It should be note that drawing reference 231 represents the carrier layer loaded with functional material and drawing reference 2312 represents the actuating means.

[0127] The three-dimensional face mask in this example only has a notch on the portion corresponding to the mouth (including the portion below the nostril), other areas are inclosed, so it can clean and rejuvenate most areas of the face.

EXAMPLE 9

[0128] The difference of Example 9 over Example 8 is that there is provided a layer of water-soluble hydrogel on the surface of the thermal-insulation layer 132 that is in contact with the skin.

EXAMPLE 10

[0129] As shown in FIGS. 15-16, the difference of Example 10 over Example 8 is that the carrier layer 431 loaded with functional material is provided with two fluid reservoirs 435 on its two sides. In this example, the two fluid reservoirs 435 are respectively arranged on the left fixing strap 418 and the right fixing strap 428. The fluid reservoir 435 is loaded with clean water. The fluid reservoir 435 and the carrier layer 431 are manufactured in one piece, and they are interconnected by the existing one-way valve 436. When a user wants to adjust the temperature of the carrier layer 431 loaded with functional material or wants a cold compress following a hot compress, he only needs to press the fluid reservoirs 435 with hand to make the clean water loaded in the fluid reservoir 435 flow to the carrier layer 431 and mix with the sodium acetate crystals, then the cooling effect would be achieved due to endothermic reaction. In use, the addition of clean water decreases the concentration of the oversaturated aqueous solution of sodium acetate, so the phase balance of the oversaturated aqueous solution of sodium acetate loaded in the carrier layer 431 is broken, when the film is used again later, the heating temperature is a little lower than before. The clean water injected into the carrier layer may accumulate at the bottom of the face mask, which may cause an uneven temperature distribution. In order to avoid this, a little thickener (such as pectin) is added in the clean water.

[0130] In use, the user should press the stainless steel disc 4312 to cause the face mask to release heat and apply a skincare product to the face, then apply the face mask to the face; and after the face mask has cooled to room temperature, he can press the fluid reservoirs 435 with hand to make the clean water loaded in the fluid reservoir 435 flow to the carrier layer 4331 and mix with the sodium acetate crystals, the process would absorb heat and refrigerate the face mask; the refrigerated face mask can be applied to the face again to cool the face skin. By the above processes, a cold compress following a hot compress can be available.

EXAMPLE 11

[0131] FIGS. 17-18 show a multifunctional temperature self-regulating three-dimensional face mask according to Example 11 of the present invention. In this example, the functional material loaded in the carrier layer 531 is urea (120 g). The fluid reservoir 535 is loaded with clean water (120 g), and the fluid reservoir 535 and the carrier layer 531 are manufactured in one piece, and they are interconnected by the existing one-way valve 536. Just as Example 10, the two fluid reservoirs 535 are respectively arranged on the left fixing strap 518 and the right fixing strap 528. When a user wants a cold compress, he only needs to press the fluid reservoirs 535 with hand to make the clean water loaded in the fluid reservoir 535 flow to the carrier layer 531 and mix with urea, then the cooling effect would be achieved due to endothermic reaction. The face mask in Example 11 is only used for a cold compress, so there is no actuating means provided in the three-dimensional face mask.

COMPARATIVE EXAMPLE 2

[0132] The face mask in Comparative Example 2 is similar to that in Example 10 except that no thermal-insulation layer is provided, and it is used in the same way as described in Example 10.

[0133] The results show that the duration of the heat generation (in a heat range above 37° C). for the face mask in Example 10 is about 35 minutes, while it is only about 20 minutes for the face mask in Comparative Example 2; and the duration of the refrigeration for the face mask in Example 10 is about 30 minutes, while it is only about 20 minutes for the face mask in Comparative Example 2. In addition, it has been demonstrated in experiments that due to the thermal-insulation layer according to the invention the heat generation/refrigeration in Example 10 is significantly more homogeneous than that in Comparative Example 2, that is, the face mask in Example 10 overcomes the problem of the face mask in Comparative Example 2 which is either too hot or too cold for most of the time it is being used. Compared with Comparative Example 2, the face mask in Example 10 improves the absorption effect of the skincare and the moisture content of the skin.

EXAMPLE 12

[0134] As shown in FIG. 19, in Example 12, the face mask 10 has notches 111 corresponding to the user's eyes, and notch 112 corresponding to the mouth, and notch 113 corresponding to the nostril. The two sides of the face mask 10 are provided with a fixing strap 114, and the fixing strap 114 is provided with a velcro 115.

[0135] After applied to the face, the face mask 10 can be attached to the user's head by the fixing strap 114 and tighten by the velcro 115.

[0136] In this example, as shown in FIG. 19, the face portion of the face mask comprises a structure of two layers: a carrier layer 131 loaded with functional material and a thermal-insulation layer 132; wherein the carrier layer 131 is loaded with refrigerating or heat-generating chemical material 1311. As shown in FIG. 20, the thermal-insulation layer 132 is in contact with the skin 14.

[0137] In this example, the carrier layer 131 loaded with functional material and the thermal-insulation layer 132 are adhered together by, for example, the adhesive or thermal bonding, so they are applied to the skin as a whole. In some cases, the thermal-insulation layer 132 is not adhered together with the carrier layer 131 loaded with functional material. That is, in use, the thermal-insulation layer is first applied to the skin, then the carrier layer 131 loaded with functional material is applied, and the similar effect can also be obtained.

[0138] In this example, the carrier layer 131 loaded with functional material is made of transparent PVC material. In this example, the functional material 1311 loaded in the carrier layer 131 is a sodium acetate solution at a concentration of 80-90%, and a stainless steel disc 1312 which is concave in shape is also loaded in the carrier layer 131. The carrier layer 131 loaded with functional material is made of transparent OPP film, so the stainless steel disc 1312 can be seen by the user. When a hot compress is needed, press the stainless steel disc 1312 with the hand to cause sodium acetate to form crystals and release heat.

[0139] In this example, the thermal-insulation layer 132 is formed by a PET aluminum film made of PET and silvery aluminum.

EXAMPLE 13

[0140] FIG. 21 shows a multifunctional temperature self-regulating face mask according to Example 13 of the present invention. The difference of Example 13 over Example 12 is that there is no notch provided on the portions corresponding to the user's eyes. That is to say, the face mask is inclosed on eye portions. Since there is no notch on the portions corresponding to the user's eyes, so the face mask can clean and rejuvenate most areas of the face except the mouth and nostril.

EXAMPLE 14

[0141] The difference of Example 14 over Example 12 is that there is provided a layer of water-soluble hydrogel on the surface of the thermal-insulation layer 132 that is in contact with the skin, which is used for adhering the face mask to the skin.

EXAMPLE 15

[0142] As shown in FIG. 22, the difference of Example 15 over Example 12 is that the carrier layer 431 loaded with functional material is provided with two fluid reservoirs 435 on its two sides. In this example, the two fluid reservoirs 435 are respectively arranged on the two fixing straps 414. The fluid reservoir 435 is loaded with clean water. The fluid reservoir 435 and the carrier layer 431 are manufactured in one piece, and they are interconnected by the existing one-way valve 436. When a user wants to adjust the temperature of the carrier layer 431 loaded with functional material or wants a cold compress following a hot compress, he only needs to press the fluid reservoirs 435 with hand to make the clean water loaded in the fluid reservoir 435 flow to the carrier layer 431 and mix with the sodium acetate crystals, then the cooling effect would be achieved due to endothermic reaction. In use, the addition of clean water decreases the concentration of the oversaturated aqueous solution of sodium acetate, so the phase balance of the oversaturated aqueous solution of sodium acetate loaded in the carrier layer 431 is broken, when the film is used again later, the heating temperature is a little lower than before. The clean water injected into the carrier layer may accumulate at the bottom of the face mask, which may cause an uneven temperature distribution. In order to avoid this, a little thickener (such as pectin) is added in the clean water.

[0143] In use, the user should press the stainless steel disc 4312 to cause the face mask to release heat and apply a skincare product to the face, then apply the face mask to the face; and after the face mask has cooled to room temperature, he can press the fluid reservoirs 435 with hand to make the clean water loaded in the fluid reservoir 435 flow to the carrier layer 4331 and mix with the sodium acetate crystals, the process would absorb heat and refrigerate the face mask; the refrigerated face mask can be applied to the face again to cool the face skin. By the above processes, a cold compress following a hot compress can be available.

EXAMPLE 16

[0144] FIG. 23 shows a multifunctional temperature self-regulating face mask according to Example 16 of the present invention. In this example, the functional material loaded in the carrier layer 531 is urea (120 g). The fluid reservoir 535 is loaded with clean water (120 g), and the fluid reservoir 535 and the carrier layer 531 are manufactured in one piece, and they are interconnected by the existing one-way valve 536. Just as Example 15, the two fluid reservoirs 535 are respectively arranged on the fixing straps 514. When a user wants a cold compress, he only needs to press the fluid reservoirs 535 with hand to make the clean water loaded in the fluid reservoir 535 flow to the carrier layer 531 and mix with urea, then the cooling effect would be achieved due to endothermic reaction. The face mask in Example 11 is only used for a cold compress, so there is no actuating means provided in the face mask.

COMPARATIVE EXAMPLE 3

[0145] The face mask in Comparative Example 3 is similar to that in Example 15 except that no thermal-insulation layer is provided, and it is used in the same way as described in Example 15.

[0146] The results show that the duration of the heat generation (in a heat range above 37° C). for the face mask in Example 15 is about 35 minutes, while it is only about 20 minutes for the face mask in Comparative Example 3; and the duration of the refrigeration for the face mask in Example 15 is about 30 minutes, while it is only about 20 minutes for the face mask in Comparative Example 3. In addition, it has been demonstrated in experiments that due to the thermal-insulation layer according to the invention the heat generation/refrigeration in Example 15 is significantly more homogeneous than that in Comparative Example 3, that is, the face mask in Example 15 overcomes the problem of the face mask in Comparative Example 3 which is either too hot or too cold for most of the time it is being used. Compared with Comparative Example 3, the face mask in Example 15 improves the absorption effect of the skincare and the moisture content of the skin.

EXAMPLE 17

[0147] As shown in FIGS. 24-25, in this example, the eye portion of the eye mask 10 comprises a structure of two layers: a carrier layer 131 loaded with functional material and a thermal-insulation layer 132; wherein the carrier layer 131 is loaded with refrigerating or heat-generating chemical material 1311. As shown in FIG. 25, the thermal-insulation layer 132 is in contact with the skin 14.

[0148] In this example, the carrier layer 131 loaded with functional material and the thermal-insulation layer 132 are adhered together by, for example, the adhesive or thermal bonding, so they are applied to the skin as a whole. In some cases, the thermal-insulation layer 132 is not adhered together with the carrier layer 131 loaded with functional material.

[0149] In this example, the carrier layer 131 loaded with functional material is made of transparent PVC material. In this example, the functional material 1311 loaded in the carrier layer 131 is a sodium acetate solution at a concentration of 80-90%, and a stainless steel disc 1312 which is concave in shape is also loaded in the carrier layer 131. The carrier layer 131 loaded with functional material is made of transparent OPP film, so the stainless steel disc 1312 can be seen by the user. When a hot compress is needed, press the stainless steel disc 1312 with the hand to cause sodium acetate to form crystals and release heat. In this example, the eye mask can be reused when immersing it into hot water at about 80° C. for 2-3 minutes to dissolve the crystals. In order to increases the using life of the eye mask, the nucleating agent, 10 wt. % sodium silicate, is added in the oversaturated aqueous solution of sodium acetate.

[0150] In this example, the thermal-insulation layer 132 is formed by a PET aluminum film made of PET and silvery aluminum.

[0151] In this example, the heat given off from the carrier layer loaded with functional material can relax the muscle around the eyes, enlarge blood vessel and accelerate blood circulation, so as to relieve swelling, dry eye syndrome and eye irritation. In addition, a thermal-insulation layer formed of a material having waterproof and thermal-insulation properties is provided between the carrier layer and the skin. When used, the thermal-insulation layer ensures the heat given off from the carrier layer loaded with functional material is evenly and stably transferred to the skin, and the heat will not spread out quickly from the skin, so as to avoid scalding caused by too high initial temperature and maintain stable and suitable holding temperature. Further, the thermal-insulation layer prevents the water or oil in the skincare product, external medicine or healthcare product or sweat from permeating into the functional material, so as to avoid uncontrollable peak heating temperature and cross-contamination between the chemical reaction products of the functional material and the water or oil in the skincare product, or healthcare product or the sweat, which may cause skin infection. When applied to the face, the heat given off by the carrier layer loaded with functional material and maintained by the thermal-insulation layer makes the skin comfortable, improves blood circulation and enlarges facial pores, so as to clean skin dirt and sebaceous secretion. When used in combination with a skincare product, the absorption of the effective ingredients in said traditional eye mask or skincare product is improved, so the amount of skincare product used is reduced and skincare effect is enhanced. In addition, the use is convenient, environmentally friendly and low-cost.

[0152] In this example, a slit 15 is vertically cut along a lower half of a central vertical axis of the eye mask. Due to this, after applied to the eyes, a left side piece and a right side piece of the eye mask can naturally splay outward on the portion of nose bridge, so as to fit the user's eyes in shape, that is, the left side piece and the right side piece of the eye mask are symmetrically arranged along the nose bridge and naturally splay outward to the two sides of the slit so as to be reliably adhered to the eyes.

EXAMPLE 18

[0153] FIG. 26 shows a multifunctional temperature self-regulating eye mask according to Example 18 of the present invention. The difference of Example 18 over Example 17 is that the eye mask 10 is also provided with two hanging parts 21, and the hanging parts 21 have ears slits 22 which can hung on the user's ears. In use, the eye mask can be reliably attached to the user's eyes by the hanging parts 21, so the eye mask would not easily move or fall off from the eyes.

EXAMPLE 19

[0154] In this example, there is provided a layer of water-soluble hydrogel on the surface of the thermal-insulation layer 132 of the eye mask that is in contact with the skin, so as to adhere the multilayer film to the user's body. In practice, the water-soluble hydrogel layer may comprise an active ingredient of a topically-applied healthcare product, a topically-applied medicine or a skincare product. Since the present multilayer film comprises an additional thermal-insulation layer formed of a material having waterproof and thermal-insulation properties, the water in the hydrogel can't permeate into the carrier layer, so as to avoid affecting peak heating/cooling temperature and heating/cooling effect.

EXAMPLE 20

[0155] As shown in FIG. 27, the difference of Example 20 over Example 17 is that the carrier layer 431 loaded with functional material is provided with two fluid reservoirs 435 on its two sides. In this example, the two fluid reservoirs 435 are respectively arranged on the two hanging parts 41. The fluid reservoir 435 is loaded with clean water. The fluid reservoir 435 and the carrier layer 431 are manufactured in one piece, and they are interconnected by the existing one-way valve 436. When a user wants to adjust the temperature of the carrier layer 431 loaded with functional material or wants a cold compress following a hot compress, he only needs to press the fluid reservoir 435 with hand to make the clean water loaded in the fluid reservoir 435 flow to the carrier layer 431 and mix with the sodium acetate crystals, then the cooling effect would be achieved due to endothermic reaction. In use, the addition of clean water decreases the concentration of the oversaturated aqueous solution of sodium acetate, so the phase balance of the oversaturated aqueous solution of sodium acetate loaded in the carrier layer 431 is broken, when the film is used again later, the heating temperature is a little lower than before. The clean water injected into the carrier layer may accumulate at the bottom of the eye mask, which may cause an uneven temperature distribution. In order to avoid this, a little thickener (such as pectin) is added in the clean water.

[0156] In use, the user should press the stainless steel disc 4312 to cause the eye mask to release heat and apply a skincare product to the face, then apply the eye mask to the face; and after the eye mask has cooled to room temperature, he can press the fluid reservoirs 435 with hand to make the clean water loaded in the fluid reservoir 435 flow to the carrier layer 4331 and mix with the sodium acetate crystals, the process would absorb heat and refrigerate the eye mask; the refrigerated eye mask can be applied to the face again to cool the face skin. By the above processes, a cold compress following a hot compress can be available.

EXAMPLE 21

[0157] FIG. 28 shows a multifunctional temperature self-regulating eye mask according to Example 21 of the present invention. In this example, the functional material loaded in the carrier layer 531 is urea (120 g). The fluid reservoir 535 is loaded with clean water (120 g), and the fluid reservoir 535 and the carrier layer 531 are manufactured in one piece, and they are interconnected by the existing one-way valve 536. Just as Example 20, the two fluid reservoirs 535 are respectively arranged on the hanging parts 51. When a user wants a cold compress, he only needs to press the fluid reservoirs 535 with hand to make the clean water loaded in the fluid reservoir 535 flow to the carrier layer 531 and mix with urea, then the cooling effect would be achieved due to endothermic reaction.

COMPARATIVE EXAMPLE 4

[0158] The eye mask in Comparative Example 4 is similar to that in Example 20 except that no thermal-insulation layer is provided, and it is used in the same way as described in Example 20.

[0159] The results show that the duration of the heat generation (in a heat range above 37° C). for the eye mask in Example 20 is about 35 minutes, while it is only about 20 minutes for the eye mask in Comparative Example 4; and the duration of the refrigeration for the eye mask in Example 20 is about 30 minutes, while it is only about 20 minutes for the eye mask in Comparative Example 4. In addition, it has been demonstrated in experiments that due to the thermal-insulation layer according to the invention the heat generation/refrigeration in Example 20 is significantly more homogeneous than that in Comparative Example 4, that is, the eye mask in Example 20 overcomes the problem of the eye mask in Comparative Example 4 which is either too hot or too cold for most of the time it is being used. Compared with Comparative Example 4, the eye mask in Example 20 improves the absorption effect of the skincare and the moisture content of the skin.