Composite mask cloth containing sea buckthorn fibers and mask set
By designing a sea buckthorn fiber composite mask sheet and individually packaged mask liquid, the inconvenience and safety issues of existing mask products are solved, achieving a mask user experience that is highly safe, fits well, and is cost-effective.
Patent Information
- Application Number
- CN202422231932.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-09-11
AI Technical Summary
Existing facial mask products suffer from inconvenience in use, risk of contamination, easy spoilage of active ingredients, difficulty in adapting to different face shapes, and the multi-use packaging makes them inconvenient to store.
The mask sheet is made of sea buckthorn fiber, with an active skin-friendly layer and a support layer. It is prepared using a hydroentanglement process and contains sea buckthorn extract as an active ingredient. The mask liquid is individually packaged and designed with openings for the mouth, eyes, and nose to accommodate different face shapes.
It improves the safety and fit of face masks, reduces the use of preservatives, lowers costs, adapts to different face shapes, and avoids mask liquid dripping and clothing staining.
Smart Images

Figure CN223464273U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of beauty care technology, specifically relates to a composite mask cloth containing sand jujube fiber and mask set. BACKGROUND
[0002] With the improvement of living standards and the importance of personal image management, people's consumption in beauty care services and related products gradually increases. In skin care products, masks are one of the most widely used and highest frequency of use skin care products. In recent years, consumers' requirements for masks have been increasing, not only in terms of efficacy, from single moisturizing to whitening, repairing, anti-aging and other aspects, but also in terms of convenience and safety.
[0003] The mainstream mask products on the market at present include soft film and patch type mask. Soft film is a mask product that directly applies cream-like mask to the face for a period of time before washing. It has the advantages of being suitable for users with different facial features and having controllable application amount, but the use process is relatively inconvenient, and since it is usually sold in large packages with multiple usage amounts (for example, usually packaged for 10 or more usage amounts), it is not convenient to store and is easily contaminated and deteriorated. Patch type mask is usually packaged individually for single use (i.e. one piece), which is convenient to use. However, in existing patch type masks, the active ingredients are in the form of mask liquid (serum), and the mask paper or mask cloth is used as a carrier, which is soaked with mask liquid and then applied. Due to the limited carrying capacity of the mask paper / mask cloth, the serum is easily wasted and may contaminate clothes during use. Moreover, since the mask paper / mask cloth is a uniform product, it is difficult to adapt to different face shapes of users, which often causes problems such as poor fit with the face when using patch type masks. In addition, the active ingredients in the mask are prone to spoilage, and whether it is supplied in the form of soft film or patch type mask, preservatives need to be added, which also raises consumers' concerns about the safety of mask products. SUMMARY
[0004] The utility model aims at overcoming the above-mentioned problems in the prior art, and provides a composite mask cloth containing sand jujube fiber and a mask set. The composite mask cloth provided by the utility model comprises an active skin-friendly layer made of sand jujube fiber non-woven fabric. By introducing sand jujube extract into the active skin-friendly layer and then making a mask, the mask cloth itself contains active ingredients, so that additional VC, VE, SOD and other ingredients are not needed. Since the mask does not need to be stored with serum, and the active substances are present in the dry mask base cloth, the use of preservatives can be reduced or omitted, and the safety of the mask is improved.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a kind of composite mask cloth on one hand, the composite mask cloth includes active skin layer and support layer, wherein, active skin layer is made of seabuckthorn fiber.
[0006] The utility model provides a kind of mask set, and the mask set includes independently packaged mask cloth and mask liquid, wherein, the mask cloth includes the main body film cloth made of the composite mask cloth described in the first aspect, and the main body film cloth is provided with mouth hole and eye hole respectively at the position corresponding to user's lip and eye, and is provided with incomplete cutting mouth at the position corresponding to user's nose to form nose hole.
[0007] Through the above technical scheme, the utility model can at least achieve following beneficial effects:
[0008] (1) the active skin layer of the composite mask cloth provided by the utility model is made of seabuckthorn fiber, which is more soft and comfortable than existing mask cloth, especially suitable for users with sensitive skin and other high-quality requirements for mask cloth.
[0009] (2) in the composite mask cloth provided by the utility model, the non-woven fabric made of natural cellulose fiber / regenerated cellulose fiber is used as support layer, which improves the wet strength of the composite mask cloth, so that it has the advantages of easy to stick to face contour and not easy to be deformed.
[0010] (3) in some preferred embodiments, by introducing seabuckthorn extract into seabuckthorn fiber, the mask cloth itself contains active ingredients, so that the composite mask cloth can be used after being soaked in pure water without the use of essence containing vitamin C, vitamin E and SOD, which reduces the cost and improves the use safety of the mask.
[0011] (4) the main body film cloth in the mask set provided by the utility model is processed by incomplete cutting at the mouth and eye positions to form mouth hole and eye hole, so that the part of mask cloth can be removed and attached to the position such as alae nasi, corner of mouth and under eye, which cannot be completely covered due to the cutting shape of mask cloth and personal face shape, to solve the problem of incompatibility between application type mask and different user face shapes, and avoid the waste of mask cloth.
[0012] (5) the main body film cloth in the mask set provided by the utility model is provided with several cutting mouths in different areas, which can be adjusted according to the face shape of user during use, so that it is more compatible with the face shape of user. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a structure schematic view of the composite mask cloth provided by the utility model (only containing a supporting layer and an active skin-friendly layer);
[0014] Figure 2 is a structure schematic view of the composite mask cloth provided by the utility model (containing a supporting layer, an active skin-friendly layer and a water jet reinforced layer);
[0015] Figure 3 is a structure schematic view of the main mask cloth in the mask set provided by the utility model;
[0016] Figure 4 is a position schematic view of the cutting opening on the main mask cloth in the mask set provided by the utility model.
[0017] Figure 5 is a packaging structure schematic view (bagged) of the mask set provided by the utility model;
[0018] Figure 6 is a packaging structure schematic view (bottled) of the mask set provided by the utility model.
[0019] Explanation of reference signs
[0020] 1 supporting layer;2 active skin-friendly layer;3 main mask cloth;4 mouth opening through hole;5 eye opening through hole;6 nose opening through hole;7 cutting opening;8 mouth opening through hole area;9 eye opening through hole area;10 main mask cloth upper part;11 main mask cloth lower part;12 main mask cloth side edge;13 water jet reinforced layer;14 main mask cloth area;15 mask liquid area;16 isolation gasket;141 main mask cloth area bottle opening;151 mask liquid area bottle opening. DETAILED DESCRIPTION
[0021] The endpoints of the ranges and any values disclosed herein are not limited to the precise values recited as the exact dimensions are not considered critical for the purposes of the invention. The ranges are understood to include values near the recited endpoints, as well as the exact values themselves. For values that are presented as ranges, the endpoints of the ranges are not to be understood as limited to the precise values, and the ranges should be interpreted as including values near the recited endpoints. The endpoints of the ranges and any values are provided as examples only and are not intended to be limiting. The ranges should be interpreted as including values near the recited endpoints.
[0022] The inventor of the present application found in research that the sea buckthorn extract (such as sea buckthorn oil) is added to the spinning liquid in the spinning stage, and the sea buckthorn extract can be retained in the sea buckthorn fiber for a long time. The sea buckthorn extract contains a large amount of active ingredients such as vitamin A, vitamin E, flavonoids, and SOD. After being injected into the sea buckthorn fiber, the non-woven fabric made of the sea buckthorn fiber can be made into a non-woven fabric containing skin care active ingredients. Moreover, the sea buckthorn extract itself has certain antibacterial effect, and when it is used as the active ingredient (mainly or only), the use of preservatives can be reduced or eliminated. On the other hand, the non-woven fabric made of the sea buckthorn fiber is more soft and skin-friendly than the existing non-woven fabric made of other natural fibers or regenerated fibers, and can meet the needs of people with special skin types such as sensitive skin.
[0023] However, due to the low wet strength of the sea buckthorn fiber, the mask made of the sea buckthorn fiber non-woven fabric is prone to deformation and damage after being soaked, and is inconvenient to use. After a large number of experiments and attempts, the inventor found that by combining the sea buckthorn fiber non-woven fabric with a conventional non-woven fabric according to a certain thickness ratio, a composite non-woven fabric with a wet strength suitable for use as a patch mask is obtained, and the softness and skin-friendliness of the sea buckthorn fiber non-woven fabric are retained on one side, and the needs of mask cloth touch and use convenience are met.
[0024] Based on this, the first aspect of the present application provides a composite mask cloth, which comprises an active skin-friendly layer 2 and a support layer 1, wherein the active skin-friendly layer 2 is made of sea buckthorn fiber (that is, the active skin-friendly layer 2 is a sea buckthorn fiber non-woven fabric).
[0025] For example, the non-woven fabric made of sea buckthorn fiber can be used as the active skin-friendly layer 2 in the composite mask cloth provided by the present application.
[0026] In the composite mask cloth provided by the present application, the main function of the support layer 1 is to provide sufficient wet strength to the mask cloth, so that the mask cloth is not easy to deform and damage after being soaked, and is convenient to use. When in use, the active skin-friendly layer 2 is in contact with the skin.
[0027] Any existing non-woven fabric in the art that can meet the wet strength required by the mask cloth can be used as the support layer in the composite mask cloth provided by the present application. In some preferred embodiments, the support layer 1 is made of natural cellulose fiber and / or regenerated cellulose fiber (that is, the support layer 1 can be a natural cellulose fiber non-woven fabric and / or a regenerated cellulose fiber non-woven fabric).
[0028] Preferably, the support layer 1 is made of regenerated cellulose fiber. For example, the non-woven fabric made of lyocell fiber (also known as "Tencel fiber") can be used as the support layer 1 in the composite mask cloth provided by the present application.
[0029] More preferably, the regenerated cellulose fiber has a diameter of 1.2-1.8D, preferably 1.3-1.5D. "D" is the abbreviation for "denier," a unit of fiber density measured by length. Denier refers to the mass in grams of 9,000 m of fiber at a specified moisture regain. It is also commonly used in the textile industry to indicate fiber diameter; a larger denier indicates a thicker fiber.
[0030] In some preferred embodiments, the thickness ratio of the active skin-friendly layer 2 to the support layer 1 is 0.1-1:1, preferably 0.3-0.7:1, and more preferably 0.4-0.6:1.
[0031] The composite facial mask fabric provided by the utility model can be produced through conventional non-woven fabric production processes such as the hydroentanglement process. The hydroentanglement process is a conventional non-woven fabric production process that uses high pressure to eject pure water at high speed from a hydroentanglement plate, causing the fibers of the fiber web to entangle with each other, forming a hydroentangled non-woven fabric.
[0032] The present invention does not impose any particular restrictions on the specific method and process for preparing the composite facial mask cloth. For example, a non-woven fabric used as the support layer 1 can be first prepared by a spunlace process, and then the sea buckthorn fiber can be compounded with the support layer 1 by a spunlace process to form a composite facial mask cloth having the aforementioned characteristics. For another example, a non-woven fabric used as the support layer 1 and a sea buckthorn fiber non-woven fabric used as the active skin-friendly layer 2 can be prepared separately by a spunlace process, and then the two can be combined together to form a composite facial mask cloth. The present invention does not impose any particular restrictions on the bonding method. For example, an adhesive that meets the production standards for beauty and skin care products can be used to bond the non-woven fabric used as the support layer 1 and the sea buckthorn fiber non-woven fabric used as the active skin-friendly layer 2. Alternatively, the two can be pressed together by spunlace, hot pressing, or the like without using an adhesive.
[0033] like Figure 1 As shown, in some preferred embodiments, the composite facial mask cloth only includes a support layer 1 and an active skin-friendly layer 2.
[0034] like Figure 2 As shown, in some preferred embodiments, the composite facial mask fabric may further include a hydroentanglement reinforcement layer 13 in addition to the support layer 1 and the active skin-friendly layer 2. The hydroentanglement reinforcement layer 13 primarily serves to connect the active skin-friendly layer 2 and the support layer 1. Under the action of the hydroentanglement jet, the fibers of the active skin-friendly layer 2 and the support layer 1 are entangled between the two layers, tightly bonding the two layers.
[0035] Preferably, in the composite facial mask cloth, the thickness ratio of the spunlace reinforcement layer 13 to the active skin-friendly layer 2 is 0.1-0.8:1, preferably 0.2-0.5:1.
[0036] In some preferred embodiments, the diameter of the sea buckthorn fiber in the active skin-friendly layer 2 is 1.2-1.8D, preferably 1.3-1.6D. The sea buckthorn fiber can be obtained by commercial channels, for example, it can be the excellent herb sea buckthorn fiber produced by Huimei Company; or it can be prepared by itself according to the prior art, for example, the sea buckthorn fiber can be prepared from sea buckthorn extract according to the method described in CN202011501210.0.
[0037] In some preferred embodiments, the active skin-friendly layer 2 contains sea buckthorn extract. The sea buckthorn extract can be obtained by commercial channels, for example, it can be sea buckthorn fruit oil produced by Jiangxi Xuesong Natural Medicinal Oil Co., Ltd. The sea buckthorn extract can be introduced into the sea buckthorn fiber by adding it to the spinning solution during the preparation of the sea buckthorn fiber during spinning, so as to be brought into the active skin-friendly layer 2, or the sea buckthorn extract can be contacted with the sea buckthorn fiber after the sea buckthorn fiber non-woven fabric or the composite mask cloth of the utility model is prepared, so that the sea buckthorn extract enters the sea buckthorn fiber.
[0038] In some preferred embodiments, the surface of the composite mask cloth is a plain surface and / or a surface with a patterned texture. The plain surface is smoother, which is suitable for users who have high requirements for skin touch. The surface with a patterned texture makes the composite mask cloth more beautiful, and at the same time, when wet and applied to the skin surface, it can generate greater friction between the skin, so that the mask cloth is not easy to slip or shift during application. The pattern position generates micro-pressure between the skin during application, which is also beneficial to the release of active ingredients in the mask cloth.
[0039] In some preferred embodiments, the texture is prepared by a jacquard process or a hot pressing process. The jacquard process refers to a process of adjusting water pressure at different positions in the spunlace process, so that the surface of the prepared non-woven fabric forms a concave-convex texture / pattern. The hot pressing process refers to a process of pressing the non-woven fabric with a patterned mold at a certain temperature after the non-woven fabric is prepared, so that the surface of the non-woven fabric forms the required patterned texture.
[0040] In some preferred embodiments, the pattern protrusion and / or the pattern depression of the texture structure have a height difference of 0.01-1mm, preferably 0.5-0.8mm, with other positions on the composite mask cloth. The pattern shape of the texture structure is not particularly limited in the utility model, for example, it can be selected from at least one of flower shape, cloud shape and wave shape.
[0041] In some preferred embodiments, the pattern shape of the concave-convex texture is flower shape, and the diameter of a single pattern is 2-3cm.
[0042] When the composite facial mask cloth has the above-mentioned patterned lines, the prepared facial mask is better adhered to the skin, and the sea buckthorn extract in the composite facial mask cloth is more easily penetrated into the skin.
[0043] The second aspect of the utility model provides a facial mask set, the facial mask set includes facial mask cloth and facial mask liquid which are independently packed, wherein the facial mask cloth includes the main body mask cloth 3 made of the composite facial mask cloth in the first aspect, the main body mask cloth 3 is provided with the mouth through hole 4 and the eye through hole 5 respectively at the positions corresponding to the user's lip position and eye position, and is provided with a curved cutting port at the position corresponding to the user's nose to form the nose through hole 6. The curved cutting port means that the main body mask cloth 3 is cut in a curved form at the position corresponding to the nose through hole 6, so that when being applied to the face, the cut part of the mask cloth can be arched to adhere to the user's nose skin.
[0044] In some preferred embodiments, the mask cloth at the positions of the mouth through hole 4 and the eye through hole 5 on the main body mask cloth 3 is separated from the main body mask cloth in an incomplete cutting manner. The incomplete cutting means that the mask cloth at the positions of the mouth through hole 4 and the eye through hole 5 is not separated from the main body mask cloth 3 before use. For example, the mask cloth at the positions of the mouth through hole 4 and the eye through hole 5 can be cut in a dotted line or continuous point form, so that the mask cloth at the corresponding positions can be torn off before use (for example, the main body mask cloth 3 made of the composite facial mask cloth with a circular concave-convex pattern shown in FIG. 1 of the specification is used, and the mask cloth at the positions of the mouth through hole 4 and the eye through hole 5 is not completely separated from the main body mask cloth 3, but only incompletely cut, so that the mask cloth at the corresponding positions can be removed before use). Figure 3 The torn mask cloth can be applied to the alae nasi, the lower nose, the perioral region, the lower eyes and the like according to the user's face shape, so that the facial mask can better cover the positions needed on the whole face, and the application effect is improved.
[0045] In some preferred embodiments, the main body mask cloth further includes a plurality of cutting ports 7 to adjust the shape of the main body mask cloth when being applied, so that the mask cloth is better adhered to the user's face.
[0046] Reference Figure 4 In some preferred embodiments, the setting positions of the cutting ports 7 include at least one of the mouth through hole area 8, the eye through hole area 9, the upper part 10 of the main body mask cloth, the lower part 11 of the main body mask cloth and the side edge 12 of the main body mask cloth. By pulling the facial mask cloth at the cutting port during the application process, the user can more conveniently adjust the facial mask cloth according to the characteristics of the user's face shape, so that the facial mask cloth is better adhered to the face skin.
[0047] Preferably, 1-5 cutting ports 7 can be provided at each setting position (area).
[0048] The utility model discloses a dry mask set is provided, which comprises a main mask cloth and a mask liquid, wherein the main mask cloth is impregnated with an active ingredient.
[0049] When the mask set provided by the utility model contains the mask liquid, the mask liquid is stored in the mask liquid area 15; when the mask set provided by the utility model does not contain the mask liquid, the packaging of the mask set can only contain the main mask cloth area 14, or can contain both the main mask cloth area 14 and the mask liquid area 15, wherein the mask liquid area 15 is sealed and empty, and the mask liquid is added before use.
[0050] Preferably, the main mask cloth area 14 and the mask liquid area 15 can be connected to each other under the action of external force, so that the main mask cloth (3) is in contact with the mask liquid.
[0051] In a preferred embodiment, referring to Figure 5 , the mask set can be packaged in a bagged manner, wherein the main mask cloth area 14 and the mask liquid area 15 are separated from each other.
[0052] In a preferred embodiment, referring to Figure 6 , the mask set (preferably containing the mask liquid) can be packaged in a bottled manner, wherein the main mask cloth area 14 and the mask liquid area 15 use independent bottle bodies, the mask liquid area bottle mouth 151 is nested outside the main mask cloth area bottle mouth 141, for example, the two can be nested together through a threaded or extruded structure; in the bottle body of the mask liquid area 15, a film or sheet structure (preferably bonded to the inside of the bottle mouth to prevent falling off before use) is arranged at the connection between the bottle mouth and the bottle body to block the mask liquid filled in the bottle body from flowing out; the length of the mask liquid area bottle mouth 151 is shorter than the length of the main mask cloth area bottle mouth 141, and a separation pad 16 with a thickness greater than the length difference between the mask liquid area bottle mouth 151 and the main mask cloth area bottle mouth 141 is arranged between the bottle body of the mask liquid area bottle mouth 151 and the main mask cloth area 14. When used, after the separation pad 16 is taken out, the mask liquid area bottle mouth 151 is nested outside the main mask cloth area bottle mouth 141, the film or sheet structure arranged in the mask liquid area bottle mouth 151 is pushed open by the length difference between the bottle mouths, and the main mask cloth 3 filled in the main mask cloth area 14 falls into the bottle body of the mask liquid area 15 to contact with the mask liquid.
[0053] Since the active skin-friendly layer 2 in the composite mask cloth has been injected with the seabuckthorn extract, the seabuckthorn extract can be used as the active ingredient of the mask, so that the mask cloth only needs to be soaked in water during use and then applied to the face. Pure water can be used to soak the mask cloth, or other ingredients that can be used for facial skin care can be added to the water as the mask liquid.
[0054] In some preferred embodiments, the mask liquid comprises water. Preferably, pure water is used as the mask liquid.
[0055] Since the seabuckthorn extract contains active ingredients such as vitamin C, vitamin E and SOD, it is not necessary to add them repeatedly in the mask liquid. Preferably, the mask liquid does not contain vitamin C, vitamin E and SOD.
[0056] In some preferred embodiments, the mask liquid can be packaged in a container that is convenient for soaking the mask cloth. For example, the mask liquid can be packaged in a bottle, a box or a bag with a certain volume.
[0057] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited thereto. Within the technical concept of the utility model, the technical solution of the utility model can be modified in various simple ways, including the combination of various technical features in any other suitable way, and these simple modifications and combinations should also be considered as the disclosed content of the utility model and belong to the protection scope of the utility model.
Claims
1. A composite facial mask fabric comprising sand- willow fibers, characterized in that, The composite facial mask cloth comprises an active skin-friendly layer (2) and a supporting layer (1), wherein the active skin-friendly layer (2) is made of seabuckthorn fiber, and the thickness ratio of the active skin-friendly layer (2) to the supporting layer (1) is 0.1-1:
1.
2. The composite face mask cloth of claim 1, wherein, In the active skin-friendly layer (2), the diameter of the seabuckthorn fiber is 1.2-1.8D.
3. The composite face mask cloth according to claim 1 or 2, wherein, The composite facial mask cloth further comprises a spunlace reinforced layer (13). And / or, the surface of the composite facial mask cloth is a plain and / or patterned texture structure.
4. The composite face mask cloth of claim 3, wherein, In the composite facial mask cloth, the thickness ratio of the spunlace reinforced layer (13) to the active skin-friendly layer (2) is 0.1-0.8:
1. And / or, the texture structure is made by jacquard process or hot pressing process. And / or, the pattern of the texture structure is raised and / or recessed relative to other positions of the composite facial mask cloth, and the height difference between the raised pattern position and / or the recessed pattern position of the texture structure on the composite facial mask cloth and other positions is 0.01-1mm. And / or, the pattern shape of the texture is selected from at least one of flower shape, cloud shape and wave shape.
5. A mask kit, characterized in that, The facial mask set comprises independently packaged facial mask cloth and optional facial mask liquid, wherein the facial mask cloth comprises a main mask cloth (3) made of the composite facial mask cloth according to any one of claims 1-4, and a mouth through hole (4) and an eye through hole (5) are respectively arranged on the main mask cloth (3) at positions corresponding to the user's lip position and eye position, and a curved cutting hole is arranged at a position corresponding to the user's nose position to form a nose through hole (6).
6. The facial mask kit of claim 5, wherein, On the main mask cloth (3), the mask cloth at the positions of the mouth through hole (4) and the eye through hole (5) is separated from the main mask cloth (3) by incomplete cutting; And / or, the main mask cloth further comprises a plurality of cutting holes (7) to adjust the shape of the main mask cloth when applied, so that the mask cloth is more fitted to the user's face.
7. The facial mask kit of claim 6, wherein, The setting position of the cutting hole (7) comprises at least one of the mouth through hole area (8), the eye through hole area (9), the upper part of the main mask cloth (10), the lower part of the main mask cloth (11) and the side edge of the main mask cloth (12).
8. The facial mask kit of claim 5, wherein, The facial mask set adopts separate packaging, and the separate packaging comprises a main mask cloth area (14) and a facial mask liquid area (15) in the packaging of the facial mask set, wherein the main mask cloth area (14) is used to package the main mask cloth (3), and the facial mask liquid area (15) is used to package or add facial mask liquid before use.
9. The facial mask kit of claim 8, wherein, The main mask cloth area (14) and the facial mask liquid area (15) are connected to each other under the action of external force, so that the main mask cloth (3) is in contact with the facial mask liquid.
10. The facial mask kit of claim 5, wherein, The mask set is packaged in a bottle, wherein the main mask cloth area (14) and the mask liquid area (15) are packaged in independent bottles, the mask liquid area bottle mouth (151) is nested outside the main mask cloth area bottle mouth (141); a film or sheet structure is arranged between the bottle mouth and the bottle body of the mask liquid area (15) to separate the bottle mouth and the bottle body, and is used for blocking the mask liquid filled in the bottle from flowing out; the length of the mask liquid area bottle mouth (151) is shorter than the length of the main mask cloth area bottle mouth (141), and a separation pad (16) with a thickness greater than the length difference between the mask liquid area bottle mouth (151) and the main mask cloth area bottle mouth (141) is arranged between the mask liquid area bottle mouth (151) and the main mask cloth area bottle mouth (141).
Citation Information
Patent Citations
Sea-buckthorn fiber and preparation method thereof
CN112626631A