WO2024078239A1

WO2024078239A1 - Mask, manufacturing method therefor and electronic device

Info

Publication number: WO2024078239A1
Application number: PCT/CN2023/118324
Authority: WO
Inventors: 韦创; 林益邦; 杨林林
Original assignee: 华为技术有限公司
Priority date: 2022-10-12
Filing date: 2023-09-12
Publication date: 2024-04-18
Also published as: CN117863693A

Abstract

Provided in the present application is a mask. The mask is of a single-casing structure. A casing of the mask comprises a matrix and a woven structure layer, the woven structure layer comprising a plurality of interwoven first fibers, the matrix being used for bonding the plurality of first fibers, and the melting point of the matrix being smaller than the melting point of the first fibers. Further provided in the present application are a manufacturing method for the mask and an electronic device using the mask. In the present application, the integrated mask can be formed by means of composite fiber integrated weaving and hot pressing technology, and the woven structure layer forms an integrated structure by means of the matrix bonding the first fibers, so that the mask has good supporting strength, shading effect, air permeability, moisture permeability and the like; in addition, the weight of the mask can be reduced, improving the comfort of wearing same.

Description

Face mask and preparation method thereof, and electronic device

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to a Chinese patent filed with the Chinese Patent Office on October 12, 2022, with application number 202211249770.0 and application name “Face mask, method for preparing the same, and electronic device”, the entire contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the field of virtual reality technology, and in particular to a mask, a method for preparing the mask, and an electronic device using the mask.

Background technique

As a structural part that directly contacts the face, the wearing experience of the existing VR/AR head display mask is particularly important. At present, most VR/AR masks include injection molded parts and support sheets in the middle, and foam and cloth wrapped around the outside of the injection molded parts and support sheets. The mask is large in size and weight, which leads to a significant increase in the weight of the VR/AR machine. Users will feel obvious pressure when wearing the VR/AR machine, resulting in a significant decrease in user experience. In addition, the air permeability and moisture permeability are poor, and it is stuffy after wearing, which reduces the user's wearing comfort. In addition, the molding of existing VR/AR masks is complex and the molding cycle is long. Structural parts such as injection molded parts and support sheets need to be molded by injection molding, which is costly. In addition, it is difficult for existing VR masks to cover all consumer face shapes, and there are problems such as the mask not fitting well and being uncomfortable to wear.

Summary of the invention

In view of this, in order to solve at least one of the above defects, the embodiment of the present application provides a single-shell mask that is light in weight, comfortable to wear and has an integrated structure.

In addition, an embodiment of the present application further provides an electronic device including the above mask.

According to a first aspect of an embodiment of the present application, a mask is provided, which is a single-shell structure. The mask includes a shell, the shell includes a matrix and a woven structure layer, the woven structure layer includes a plurality of first fibers woven together, the matrix is used to bond the plurality of first fibers, and the melting point of the matrix is lower than the melting point of the first fibers.

A plurality of first fibers are weaved into a woven structure layer with a certain supporting force, wherein the woven structure layer is bonded through a matrix to form a single-shell mask with an integrated structure, thus giving the mask good supporting strength, light-shielding effect, and air permeability and moisture permeability, etc. At the same time, the mask only needs one shell and no additional supporting structure is required, which can effectively reduce the weight of the mask and improve wearing comfort.

In combination with the first aspect, in some embodiments, the thickness of the shell is 0.3 mm to 1.0 mm.

The mask with a single-shell structure provided in the embodiment of the present application is very thin, which can effectively reduce the weight of the mask, is conducive to the lightness, thinness and miniaturization of the mask, reduces the bloated feeling of the mask, and improves the wearing comfort and aesthetics.

In combination with the first aspect, in some embodiments, the melting point of the matrix is 60°C to 150°C.

The low melting point of the matrix facilitates the bonding of multiple first fibers during the molding process and reduces the molding temperature. Since the melting point range of the matrix is 60°C to 150°C, it can be seen that the softening point of the matrix is even lower, which is conducive to secondary heat treatment molding of the shell during the subsequent wearing process to meet the wearing needs of different users.

In combination with the first aspect, in some embodiments, the material of the matrix includes at least one of polyester and polyamide.

In combination with the first aspect, in some embodiments, the shell is used for secondary molding after heat treatment, and the temperature of the heat treatment is greater than the softening point of the matrix and less than the melting point of the matrix.

Since the melting point of the matrix is low, the softening point will be even lower. During the wearing process of the mask, the mask shell can be secondary molded through a simple heat treatment method, which can give the mask the function of thermal self-regulation, allowing consumers to fine-tune the shape of the mask according to their personal facial shape and improve the fit of the mask.

In combination with the first aspect, in some embodiments, the housing includes multiple layers of the woven structure layer, at least two layers of the woven structure layer have Different mesh sizes.

By setting multiple layers of woven structure layers, and at least two layers of woven structure layers have different mesh counts, the superposition of woven structure layers with different mesh counts can be achieved, which can further improve the support strength, light-shielding performance and wearing comfort of the mask, while reducing the weight of the mask. For example, the mesh count of the woven structure layer located in the middle layer is set to be smaller, so that the woven structure layer has a greater density, which can give the mask good support strength and light-shielding effect, and the woven structure of other layers has a larger mesh count and a smaller density, which is beneficial to reducing the weight of the mask and improving the air permeability and moisture permeability of the mask.

In combination with the first aspect, in some embodiments, the shell further includes a resin film located on a surface of the woven structure layer.

A resin film is added to the surface of the woven structure layer, which can make the mask surface skin-friendly and fit the face, and at the same time improve the surface quality of the mask to facilitate the surface decoration of the shell.

In combination with the first aspect, in some embodiments, the shell includes a support frame and a mounting portion located in the support frame, and the mounting portion is provided with a mounting hole.

The support frame and the mounting part are integrally formed, the mask structure is simple and thin, no assembly is required, and mounting holes are provided in the mounting part to facilitate the subsequent installation of the lens barrel module.

In combination with the first aspect, in some embodiments, the mask further includes a magnetic member, wherein the magnetic member is disposed on the mounting portion around the mounting hole, and the magnetic member is located on the woven structure layer.

By adding magnetic parts, it is convenient to fix the lens barrel module during the subsequent assembly of the mask and the lens barrel module.

A second aspect of an embodiment of the present application provides a method for preparing a mask, the method comprising the following steps:

Weaving a plurality of composite fibers into a composite fiber cloth, wherein the composite fibers include a first fiber and a second fiber; and

The composite fiber cloth is hot-pressed to form a woven structure layer by woven multiple first fibers, and the second fibers are melted and solidified into a matrix, and the matrix is bonded to the woven structure layer to obtain the single-shell mask.

An integrated mask can be formed by weaving multiple composite fibers together and hot pressing them. Compared with traditional masks, it does not require injection molding, the process is simple and low-cost, and it does not require assembly after one-time molding. The integrated weaving can effectively reduce the weight of the mask and improve wearing comfort.

In combination with the second aspect, in some embodiments, the second fiber is a hot melt fiber, and the melting point of the second fiber is 60°C to 150°C.

Using hot-melt wire with a lower melting point as the second fiber can reduce the temperature of hot pressing molding, so that the second fiber can form a molten state during the hot pressing process to bond to the first fiber, and after solidification, a single-shell structure mask with a specific shape is formed, which is beneficial to improve the support strength, light-shielding effect, and air permeability and moisture permeability of the mask; moreover, since the melting point range of the second fiber is 60°C to 150°C, it can be seen that the softening point of the second fiber is lower, which is beneficial to the secondary heat treatment molding of the shell during the subsequent wearing process to meet the wearing needs of different users.

In combination with the second aspect, in some embodiments, the material of the thermal fuse includes at least one of polyester and polyamide.

In combination with the second aspect, in some embodiments, the method for preparing the mask further includes:

The shell is heat-treated and secondary molded, wherein the heat-treatment temperature is greater than the softening point of the second fiber and less than the melting point of the second fiber.

Since the second fiber has a lower melting point and an even lower softening point, the mask shell can be secondary molded through a simple heat treatment method during the wearing of the mask, which can give the mask the function of thermal self-regulation, allowing consumers to fine-tune the shape of the mask according to their personal facial shape and improve the fit of the mask.

In combination with the second aspect, in some embodiments, the heat treatment method includes hot blowing.

When the mask is worn, the secondary molding of the shell can be completed through a simple heat treatment process such as hot blowing, which can give the mask the function of thermal self-adjustment, allowing consumers to fine-tune the shape of the mask according to their personal facial shape, improve the fit of the mask, and solve the pain point that the mask cannot be suitable for many consumers.

In combination with the second aspect, in some embodiments, the weaving includes at least one of knitting, weaving and non-woven.

In combination with the second aspect, in some embodiments, the weaving includes at least one of single-layer weaving, double-layer weaving, and multi-layer weaving of more than double layers.

In combination with the second aspect, in some embodiments, the composite fiber cloth includes multiple layers of first fiber sheets, and at least two layers of the first fiber sheets have different mesh sizes.

By integrally weaving and molding multiple layers of first fiber sheets, and at least two layers of the first fiber sheets having different mesh counts, the support strength of the mask can be further improved, and it is also helpful to adjust the air permeability, moisture permeability and light shielding properties of the mask. For example, the mesh count of the woven structure layer located in the middle layer is set to be smaller, so that the woven structure layer has a greater density, which can give the mask good support strength and light shielding effect, and the mesh count of the woven structure layers of other layers is larger and the density is smaller, which is helpful to reduce the weight of the mask, especially the mesh count of the woven structure layer that fits the face is set to be larger and the density is smaller, so that the surface of the mask that fits the face is softer, and the wearing comfort is improved.

In combination with the second aspect, in some embodiments, the composite fiber cloth further includes at least one second fiber sheet formed by weaving a plurality of the second fibers together, the second fiber sheet is located at the outermost layer of the composite fiber cloth, and the step of hot pressing the composite fiber cloth further includes:

The second fiber sheet is melted and solidified into a resin film.

When the composite fiber cloth is woven into one piece, by adding a second fiber sheet woven with a low melting point second fiber to the outermost layer, it can be subsequently hot-pressed and cured to form a resin film, which can give the mask surface skin-friendliness that fits the face, while also improving the surface quality of the mask to facilitate the surface decoration of the shell.

In combination with the second aspect, in some embodiments, the step of weaving the composite fibers into a composite fiber cloth further includes the following steps:

The magnetic element is woven into the composite fiber cloth.

The magnetic parts are directly woven into the composite fiber cloth, and the molding is done in one step, and the process is simple.

In combination with the second aspect, in some embodiments, the weight percentage of the second fiber in the composite fiber is greater than or equal to 30 wt.%.

By adjusting the content of the second fiber in the composite fiber, the support strength, light-shielding effect, and air and moisture permeability of the mask can be adjusted.

In combination with the second aspect, in some embodiments, the diameter of the composite fiber is 30D to 300D.

By adjusting the diameter of the composite fiber, the thickness of the shell can be adjusted to meet different thickness requirements.

A third aspect of an embodiment of the present application provides an electronic device, comprising a mask and a lens barrel module connected to the mask, wherein the mask is the mask described in the first aspect of the embodiment of the present application or is a mask made by the mask preparation method described in the second aspect of the embodiment of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of a housing provided in one embodiment of the present application.

FIG. 2 is a schematic structural diagram of a mask provided in an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a housing provided in another embodiment of the present application.

FIG. 4 is a schematic structural diagram of a housing provided in yet another embodiment of the present application.

FIG. 5 is a schematic diagram of a structure in which magnetic components are woven into a woven structural layer provided in an embodiment of the present application.

FIG. 6 is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

FIG. 7 is a flow chart of preparing a mask according to an embodiment of the present application.

FIG8 is a schematic diagram of the structure of a composite fiber cloth provided in one embodiment of the present application.

FIG. 9 is a schematic diagram of the structure of a composite fiber provided in one embodiment of the present application.

FIG. 10 is a schematic diagram of the structure of a composite fiber provided in another embodiment of the present application.

FIG. 11 is a schematic diagram of the structure of a composite fiber provided in yet another embodiment of the present application.

FIG. 12 is a schematic diagram of the structure of a composite fiber cloth provided in yet another embodiment of the present application.

FIG. 13 is a schematic diagram of the structure of a composite fiber cloth provided in yet another embodiment of the present application.

FIG. 14 is a schematic diagram of the structure of a composite fiber cloth woven with magnetic components provided in one embodiment of the present application.

Main Components Symbol Description Mask 100
Housing 10
Matrix 1
Braided structure layer 2
Support frame 11
Installation 12
Mounting holes 13
Composite fiber 20,20a,20b
First fiber 21,21b
Second fiber 22,22b
Composite fiber cloth 30
First fiber sheet 31
Second fiber sheet 32
Resin film 3,4
Magnetic parts 5
Electronic devices 200
Lens tube module 210

Detailed ways

The embodiments of the present application are described below in conjunction with the accompanying drawings in the embodiments of the present application. The data ranges involved in the present application should include the end values unless otherwise specified.

The existing VR/AR head display masks are large in size and weight; moreover, the masks have poor air permeability and moisture permeability, and are poorly compatible with the consumer's face shape, which reduces wearing comfort; in addition, the existing VR/AR masks are complex to mold, have a long molding cycle and are costly.

To solve the above problems, the embodiment of the present application provides a light-weight, comfortable-to-wear, and one-piece single-shell mask. The mask can be assembled with a lens barrel module to obtain an electronic device, thereby achieving lightweight electronic devices and improving the wearing comfort of electronic devices. The lens barrel module includes but is not limited to an AR or VR lens barrel module, and the obtained electronic device includes but is not limited to an AR/VR display device.

Please refer to Figures 1 and 2. The mask 100 provided in the embodiment of the present application is a single shell structure. The mask 100 includes a shell 10. The shell 10 includes a matrix 1 and a woven structure layer 2. The woven structure layer 2 includes a plurality of first fibers 21 woven with each other. The matrix 1 is used to bond the plurality of first fibers 21. The melting point of the matrix 1 is lower than the melting point of the first fibers 21.

The matrix 1 is formed by melting and solidifying the second fiber with a lower melting point. In the embodiment of the present application, two first fibers 21 and second fibers with different melting points are compounded to form a composite fiber, and then the composite fiber is woven into a composite fiber sheet, and then the composite fiber sheet is hot-pressed to obtain an integrated single-shell structure mask 100. Among them, the first fiber 21 has a higher melting point, and the woven structure layer 2 formed by weaving a plurality of first fibers 21 together will not melt during the hot pressing process, while the second fiber, the raw material of the matrix 1, has a lower melting point and can melt at a lower temperature and has a certain bonding effect, and can bond a plurality of first fibers 21 woven together to form an integrated structure, thereby making the woven structure layer 2 stiff and fixed.

In some embodiments, the second fiber with a lower melting point is a hot melt, including but not limited to at least one of a low melting point polyester fiber and a low melting point nylon fiber. At a relatively low temperature, the hot melt of the above type melts and has a certain bonding effect, which can give the woven structure layer 2 a stiffening and shaping effect. By compounding the above hot melt with other first fibers 21 with a higher melting point and weaving them into a sheet and then hot pressing and shaping, an integrated woven and molded single-shell structure mask 100 is obtained, which is conducive to simplifying the molding process, reducing the molding temperature and the cost of the mask 100.

In some embodiments, the melting point of the matrix 1 is 60°C to 150°C, that is, the melting point of the second fiber is 60°C to 150°C, further 60°C to 100°C, and the melting point of the matrix 1 is typically but not limited to 60°C, 65°C, 70°C, 75°C, 80°C, 85°C, 90°C, 100°C, 110°C, 120°C, 130°C, 140°C or 150°C. The matrix 1 within the melting point range is conducive to reducing the temperature of hot pressing molding, and can melt-bond multiple first fibers 21 at a lower temperature. It can be seen from the melting point range of the matrix 1 of 60°C to 150°C that the softening point of the matrix 1 is lower, which is conducive to the secondary heat treatment molding of the shell 10 during the subsequent wearing process, so that the mask 100 fits the face shape of different wearers better to meet the wearing needs of different users.

In some embodiments, the weight percentage of the matrix 1 in the shell 10 is greater than or equal to 30wt.%, and by adjusting the weight percentage of the matrix 1 in the shell 10, the support strength, light shielding effect, and air permeability and moisture permeability of the mask 100 can be adjusted. When the weight percentage of the matrix 1 is small (less than 30wt.%), the woven structure layer 2 cannot be fully bonded, the supporting force of the shell 10 decreases, and it is not easy to form a three-dimensional mask 100. It can be understood that according to the actual needs of the mask 100, the shell 10 can also be integrally woven and hot-pressed only by the second fiber, that is, the weight percentage of the matrix 1 in the shell 10 reaches 100wt.%.

The first fiber 21 can be any fiber material having a higher melting point than the second fiber, for example, a composite fiber of one or more of natural fibers and chemical fibers, wherein natural fibers include plant fibers, animal fibers and mineral fibers, and chemical fibers include regenerated fibers, synthetic fibers and inorganic fibers. In some embodiments, the first fiber 21 can be a synthetic fiber, including but not limited to polyester, nylon, spandex and high melting point fibers. Polyester fiber, etc. In addition, the first fiber 21 with specific functions can be selected according to actual needs, such as a composite of one or more of breathable and moisture-permeable fibers, ultrafine fibers, special-shaped cross-section fibers, and super absorbent fibers. For example, skin-friendly polyester, nylon, and spandex are used as the first fiber 21 to form a composite fiber with the hot melt. The composite fiber sheet woven from the composite fiber will have excellent skin-friendly effect and support performance; ultrafine fibers, special-shaped cross-section fibers or super absorbent fibers are used as the first fiber 21 to be composited with the hot melt, and the woven composite fiber sheet will obtain excellent support effect and breathable and moisture-permeable effect; super strong fibers are used as the first fiber 21 to be composited with the hot melt, and the woven composite fiber sheet will obtain a stronger support effect. When ultrafine fibers, special-shaped cross-section fibers, and super absorbent fibers are used as the first fiber 21, the first fiber 21 in the shell 10 can form a micro moisture-conducting channel in the matrix 1, giving the mask 100 good breathable and moisture-permeable performance.

In the shell 10, the matrix 1 is a continuous phase, and the woven structure layer 2 is embedded in the matrix 1 to form a supporting structure. The shell 10 includes one or more woven structure layers 2. The thickness of the shell 10 can be changed by designing the number of woven structure layers 2 according to actual needs. In some embodiments, the thickness of the shell 10 is 0.3 mm to 1.0 mm, and further 0.5 mm to 0.8 mm. The thickness of the shell 10 is typically but not limited to 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1.0 mm. The mask 100 has a single shell structure, and the thickness of the shell 10 does not exceed 1.0 mm. The thickness is very thin, which can effectively reduce the weight of the mask 100, is conducive to the lightness, thinness and miniaturization of the mask 100, reduces the bloated feeling of the mask 100, and improves the wearing comfort and aesthetics. Moreover, due to the existence of the braided structure layer 2 and the bonding of the matrix 1 to the braided structure layer 2, the one-piece housing 10 has strong support even at such a thin thickness, and can achieve the bearing capacity required for the actual installation of the lens barrel module.

The density of the housing 10 can be changed by changing the mesh number of the woven structure layer 2 in the housing 10, so that the housing 10 has strong support, good water permeability and good light shielding. In some embodiments, the mesh number of the housing 10 can be larger in a part and smaller in another part, so as to realize that different parts of the housing 10 have different characteristics. For example, the part where the housing 10 fits the face can be woven looser with a smaller mesh number, thereby improving the water permeability and air permeability of the housing 10 at this part, and the woven structure layer 2 of the part where the housing 10 is assembled with the lens barrel module can be woven more densely with a larger mesh number, thereby improving the light shielding of the housing 10 at this part, and reducing the risk of light leakage of the lens barrel module after subsequent assembly with the lens barrel module. In addition, it can be understood that the greater the density of the woven structure layer 2, the greater the support of the housing 10, and therefore, the woven structure layer 2 can be woven more densely at a part where a larger support is required. It can be understood that in other embodiments, when the shell 10 includes multiple layers of woven structure layers 2 (here, multiple layers refer to two or more layers), at least two layers of woven structure layers 2 have different mesh counts. By setting the mesh counts of at least two layers of the multiple layers of woven structure layers 2 to be different, the superposition of woven structure layers 2 with different mesh counts can be achieved, which can further improve the support strength, light shielding performance and wearing comfort of the mask 100, while reducing the weight of the mask 100. For example, the mesh count of the woven structure layer 2 located in the middle layer is set to be smaller, so that the density of the woven structure layer is larger, which can give the mask good support strength and light shielding effect, and the mesh counts of the woven structure layers 2 of other layers are larger and the density is smaller, which is conducive to reducing the weight of the mask 100, especially the mesh count of the woven structure layer 2 that fits the face is set to be larger and the density is smaller, so that the surface of the mask 100 that fits the face is softer and the wearing comfort is improved.

As shown in Figures 3 and 4, the shell 10 also has at least one layer of resin film 3 (or 4), wherein the resin film is located on the surface of the woven structure layer 2, and specifically may include a resin film 3 located on the outer surface of the woven structure layer 2 and a resin film 4 located on the inner surface of the woven structure layer 2, wherein the shell 10 has at least one of the resin film 3 and the resin film 4. The resin film 3 or the resin film 4 is formed by melting a second fiber with a specific function and solidifying it on the outer surface and the inner surface of the woven structure layer 2, respectively. In some embodiments, as shown in Figure 5, due to the presence of the woven structure layer 2, the surface of the shell 10 has a certain degree of roughness. In order to improve the surface decoration of the shell 10, a layer of resin film 3 formed by melting and solidifying the second fiber on the outer surface of the woven structure layer 2 is added, which can effectively improve the surface quality of the mask and facilitate the surface decoration of the shell. It can be understood that in other embodiments, as shown in Figure 6, when a resin film 4 is provided on the inner surface of the woven structure layer 2, for example, the second fiber with better skin affinity is woven into a thinner fiber sheet and hot-pressed together with the aforementioned composite fiber sheet, so that the second fiber 22 is melted and solidified to form a thinner resin film 4 on the inner surface of the woven structure layer 2, which can give the mask 100 better skin affinity.

As shown in FIG2 , the housing 10 includes a support frame 11 and a mounting portion 12 located inside the support frame 11, wherein the mounting portion 12 is provided with a mounting hole 13, and a lens barrel module is installed in the mounting hole 13, and the lens barrel module includes but is not limited to an AR/VR lens barrel module. The lens barrel module is installed using the aforementioned mask 100, and the support frame 11 and the mounting portion 12 are integrally formed. The mask 100 has a simple and thin structure. The mask 100 is an integrated single-shell structure and does not need to be assembled separately. The mounting portion 12 is provided with a mounting hole 13 to facilitate the subsequent installation of the lens barrel module.

In some embodiments, as shown in FIG5 , the mask 100 further includes a magnetic member 5, which is disposed on the mounting portion 12 around the mounting hole 13, and the magnetic member 5 is located in the woven structure layer 2. The addition of the magnetic member 5 facilitates fixing the lens barrel module during the subsequent assembly process of the mask 100 and the lens barrel module. Specifically, the magnetic member 5 can be woven into the woven structure layer 2 during the weaving process, so that the magnetic member 5 is directly formed in the mask 100, and there is no need to separately open a groove on the mask 100 for installing the magnetic member 5. The molding method is simple and convenient, which improves the firmness of the magnetic member 5 and does not damage the integrated structure of the mask 100. In addition, the lens barrel module is fixed by the magnetic member 5, and the assembly method of the mask 100 and the lens barrel module is convenient. It is understandable that in other embodiments, other structures can be provided on the mounting portion 12 around the mounting hole 13 to mount the lens barrel module, for example, a slot is provided on the mounting portion 12 around the mounting hole 13, and a buckle is provided on the lens barrel module, and the lens barrel module is fixed by the cooperation of the buckle and the slot.

Since the melting point of the matrix 1 is relatively low, the shell 10 can also be secondary molded after heat treatment, and the temperature of the heat treatment is greater than the softening point of the matrix 1 and less than the melting point of the matrix 1. At present, the size design of VR/AR display masks on the market cannot adapt to the face shape of each wearer. Foreign VR/AR display masks are often designed based on the facial features of Westerners, and Asians are often not suitable for this size. On the contrary, domestic VR/AR display masks are often designed based on the facial features of Asians, and Westerners are often not suitable for this size. The mask 100 provided in the embodiment of the present application utilizes the excellent molding performance of the hot fuse. When the melting point of the hot fuse is within the aforementioned range, the shell 10 can be locally secondary heat-treated and molded at a lower heat treatment temperature. During the heat treatment process, the matrix 1 softens at a lower temperature. By pressing the softened matrix 1, the local shape of the shell 10 can be slightly adjusted to make the mask 100 fit the wearer's face shape better. For example, as shown in Figure 2, if the wearer finds that the bend connecting the support frame 11 and the mounting portion 12 is stuck on the face during wearing, the bend can be heat treated to soften the matrix 1 at the bend, and the shell 10 at the bend can be pressed to perform micro-plastic surgery on the bend, so that the mask 100 can match the wearer's face shape as much as possible, achieve a customizable adjustment effect, improve the applicability of the mask 100, and thus solve the pain point that traditional masks are not suitable for many consumers.

In some embodiments, in order to facilitate the secondary heat treatment molding of the shell 10, the melting point of the matrix 1 is further 60°C to 100°C. Since the melting point of the matrix 1 is low, the softening point will be lower. Therefore, the softening temperature of the matrix 1 within the above melting point range is lower than 100°C. The heat treatment temperature of the shell 10 is low, and the heat treatment method is flexible. For example, hot air can be used to soften the shell 10 locally, which is convenient for the secondary heat treatment molding of the shell 10. The secondary molding method is simple, so that the wearer can adjust the shape of the shell 10 by himself, so that the mask 100 fits the face shape of different wearers better. The above heat treatment method is simple. During the wearing process of the mask 100, the secondary molding of the shell 10 of the mask 100 can be achieved by a simple heat treatment method. The function of thermal self-adjustment can be given to the mask 100, which satisfies consumers' need to make micro-adjustments to the shape of the mask 100 according to their personal face shape, improves the fit of the mask 100, and also improves the applicability of the mask 100.

In the embodiment of the present application, a plurality of first fibers 21 are woven to form a woven structure layer 2 with a certain support force, wherein the woven structure layer 2 is bonded by the matrix 1 to form a single-shell mask 100 of an integrated structure, which gives the mask 100 good support strength, light shielding effect, and air permeability and moisture permeability, etc.; the mask 100 only needs one layer of shell 10, and no additional support structure is required, which simplifies the structural complexity of the mask 100, can effectively reduce the weight of the mask 100, and improve the wearing comfort; moreover, the integrated weaving molding process is simple, which can give the mask 100 a good molding effect, and masks 100 with different shapes can be molded according to actual needs, and the mask 100 does not need to be assembled; in addition, since the melting point of the matrix 1 is relatively low, it is convenient for the shell 10 to be heat-treated and secondary molded at a relatively low temperature, so as to give the mask 100 the function of thermal self-regulation, so as to meet the needs of consumers to fine-tune the shape of the mask 100 according to the shape of their personal face, improve the fit of the mask 100, and also improve the applicability of the mask 100.

Please refer to FIG6 . The embodiment of the present application further provides an electronic device 200, which includes the aforementioned mask 100 and a lens barrel module 210 connected to the mask 100. The lens barrel module 210 includes but is not limited to an AR or VR lens barrel module, and the obtained electronic device 200 includes but is not limited to an AR/VR head display device.

The use of the aforementioned mask 100 can achieve a lightweight electronic device 200 and improve the wearing comfort of the electronic device 200 .

Please refer to FIG. 7 and FIG. 8 , and refer to FIG. 1 . Since the molding process of the existing AR/VR head display mask is complicated, the molding cycle is long, and the injection molding cost is high, the embodiment of the present application provides a method for preparing a mask 100 with a simple molding process, which is fast and does not require injection molding. The preparation method of the mask 100 specifically includes the following steps:

Step S10, a plurality of composite fibers 20 (or 20a, 20b) are integrally woven to form a composite fiber cloth 30, wherein the composite fibers 20 include first fibers 21 and second fibers 22. The types and melting point ranges of the first fibers 21 and the second fibers 22 are described above and will not be described in detail here.

Step S20 , hot pressing the composite fiber cloth 30 , so that a plurality of mutually woven first fibers 21 form a woven structure layer 2 , the second fibers 22 melt and solidify into a matrix 1 , and the matrix 1 is bonded to the woven structure layer 2 to obtain a mask 100 of a single shell 10 .

In step S10, as shown in FIG. 9 to FIG. 11, the preparation method of the composite fiber 20 (or 20a, 20b) is: firstly composite the first fiber 21 and the second fiber 22 with different melting points to form a single composite fiber 20 (or 20a, 20b).

In some embodiments, the composite method may be weaving to form a composite fiber 20 (as shown in FIG. 9 ), or may be simply winding to form a composite fiber 20a (as shown in FIG. 10 ). It is understandable that in other embodiments, as shown in FIG. 11 , the composite fiber may also be a composite fiber 20b with a core-shell structure, wherein the composite fiber 20b with a core-shell structure is formed by coaxially spinning the first fiber 21b and the second fiber 22b during the spinning process to form a core-shell structure, wherein the first fiber 21b is located inside to form a core layer, and the second fiber 22b is located outside to form a shell layer. The types and melting point ranges of the first fiber 21b and the second fiber 22b are described above, and will not be described in detail here.

In some embodiments, the weight percentage of the second fiber 22 in the composite fiber 20 is greater than or equal to 30 wt.%. The content of fiber 22 in the composite fiber 20 can adjust the support strength, light shielding effect, air permeability and moisture permeability of the mask 100.

In some embodiments, the diameter of the composite fiber 20 (or 20a, 20b) is 30D to 300D. By adjusting the diameter of the composite fiber 20 (or 20a, 20b), the thickness of the shell 10 can be adjusted to meet different thickness requirements.

In step S10, the method of weaving a plurality of composite fibers 20 (or 20a, 20b) into a composite fiber cloth 30 includes at least one of knitting, weaving and non-woven. The integrated weaving can be random weaving or ordered weaving, or a combination of random weaving and ordered weaving.

In some embodiments, the integrated weaving is at least one of knitting and weaving. As shown in FIG9 , knitting or weaving can weave the composite fiber 20 (or 20a, 20b) into a composite fiber cloth 30 that is interlaced and interspersed with each other. The interlaced structure formed can ensure that the mask 100 still has a high supporting force under the premise of being thin, which is more conducive to forming a light and thin mask 100.

During the one-piece weaving process, the thickness requirement of the actual mask 100 can be met by adjusting the number of weaving layers. The composite fiber cloth 30 can be a single-layer structure, a double-layer structure, or a multi-layer structure of more than two layers. Specifically, single-layer weaving, double-layer weaving, or a multi-layer weaving of more than two layers can be used to weave a composite fiber cloth 30 with different numbers of layers into one piece.

The mesh number of each layer of the composite fiber cloth 30 can be adjusted according to the requirements of the support force, light shielding, air permeability and moisture permeability of the mask 100, and the mesh number of different regions of the composite fiber cloth 30 can also be adjusted, thereby adjusting the mesh number of different layers in the subsequently formed woven structure layer 2 and the mesh number of different regions of the woven structure layer 2. In some embodiments, the composite fiber cloth 30 may include multiple layers of first fiber sheets 31, and at least two layers of the first fiber sheets 31 have different mesh numbers. By setting the mesh numbers of at least two layers of the first fiber sheets 31 to be different, the superposition of first fiber sheets 31 with different mesh numbers can be achieved, which can further improve the support strength, light shielding performance and wearing comfort of the mask 100, while reducing the weight of the mask 100. For example, the mesh number of the first fiber sheet 31 located in the middle layer is set to be smaller, so that the first fiber sheet 31 has a higher density, which can give the mask 100 good supporting strength and shading effect. The mesh number of the first fiber sheet 31 of other layers is larger and the density is smaller, which is beneficial to reduce the weight of the mask 100. In particular, the mesh number of the first fiber sheet 31 in contact with the face is set to be larger and the density is smaller, which can make the surface of the mask 100 in contact with the face softer, thereby improving wearing comfort. In other embodiments, the mesh count of the composite fiber cloth 30 corresponding to each part can be adjusted according to the local specific performance required by different parts of the shell 10. For example, the composite fiber cloth 30 at the part where the shell 10 is in contact with the face can be woven looser and have a smaller mesh count, thereby improving the water permeability and air permeability of the shell 10 at this part. At the same time, the composite fiber cloth 30 at the part where the shell 10 and the lens barrel module are assembled can be woven denser and have a larger mesh count, thereby improving the light shielding and supporting force of the shell 10 at this part, reducing the risk of light leakage of the lens barrel module after subsequent assembly with the lens barrel module and the stability of the connection with the lens barrel module, etc.

In step S10, as shown in FIG. 12 , the composite fiber cloth 30 further includes at least one layer of a second fiber sheet 32 formed by weaving a plurality of the second fibers 22 together, and the second fiber sheet 32 is located at the outermost layer of the composite fiber cloth 30. The step of hot pressing the composite fiber cloth 30 further includes:

The second fiber sheet 32 is melted and solidified into a resin film 3 .

When the composite fiber cloth 30 is integrally woven and formed, the second fiber sheet 32 is woven on the outermost layer of the composite fiber cloth 30 (which may include a first fiber sheet 31 or multiple first fiber sheets 31) through an integral woven forming process. After subsequent hot pressing, the second fiber sheet 32 is melted and solidified to form a resin film 3. The resin film 3 is formed by melting and solidifying the second fiber 22 with specific functions. As shown in FIG12, in combination with FIG3, due to the large roughness of the first fiber sheet 31, the surface of the shell 10 has a certain roughness after hot pressing. In order to improve the surface decoration of the shell 10, a second fiber sheet 32 formed by weaving a plurality of second fibers 22 together is added to the outermost layer of the composite fiber cloth 30. When the second fiber sheet 32 is melted and solidified, a resin film 3 with a smooth surface and certain decoration can be formed, which can effectively improve the surface quality of the shell 10, so as to facilitate the surface decoration of the shell 10.

It can be understood that in other embodiments, as shown in FIG. 13 , in combination with FIG. 4 , another second fiber sheet 32 can be formed in the innermost layer of the inner composite fiber cloth 30, wherein the second fiber sheet 32 is woven with the second fiber 22 having better skin affinity, and after hot pressing, the second fiber sheet 32 forms a resin film 4, which can give the mask 100 better skin affinity.

In step S10, when the mask 100 is applied to the VR/AR display field, the mask 100 needs to be assembled with the lens barrel module. At this time, the structure for installing the lens barrel module needs to be pre-set in the integrally woven composite fiber cloth 30. Therefore, the step of integrally weaving the composite fiber 20 to form the composite fiber cloth 30 also includes the following steps:

As shown in FIG14 , the magnetic member 5 is woven into the composite fiber cloth 30. By directly weaving the magnetic member 5 into the composite fiber cloth 30, the mask 100 is formed in one step without separately opening a groove for installing the magnetic member 5. The forming method is simple and convenient. The magnetic member 5 is directly woven into the composite fiber cloth 30, which can improve the firmness of the magnetic member 5 without destroying the overall structure of the composite fiber cloth 30, which is beneficial to improving the supporting force of the final molded mask 100, and at the same time will not destroy the integrated structure of the mask 100.

In step S20, the method of hot pressing and curing the composite fiber cloth 30 to obtain the single shell 10 specifically includes the following steps:

In the first step, the composite fiber cloth 30 is placed in the molding die and preheated. Since the composite fiber cloth 30 is soft, it will fit better with the mold. Preheating can initially soften the composite fiber cloth 30, which can further fit the composite fiber cloth 30 with the mold, reducing the problem of stress concentration in the final mask 100, especially at the bends.

In the second step, the composite fiber cloth 30 is hot pressed and solidified, so that the plurality of mutually woven first fibers 21 form a woven structure layer 2, and the molten second fibers 22 are solidified to form a matrix 1, and the solidified matrix 1 is bonded to the woven structure layer 2 to obtain a mask 100 of a single shell 10. The hot pressing temperature is lower than the melting point of the first fibers 21 and higher than the melting point of the second fibers 22, so that the second fibers 22 can be melted to form a melt, and the melt flows under pressure to fill the entire cavity, thereby wrapping the plurality of mutually woven first fibers 21.

In some embodiments, the second fiber 22 is the aforementioned hot melt, the melting point of the second fiber is 60°C to 150°C, and the hot pressing temperature can be 60°C to 300°C. In a specific shape mold, the composite fiber cloth 30 is formed into an ultra-thin three-dimensional single-shell structure mask 100. Using a hot melt with a lower melting point as the second fiber 22 can reduce the temperature of hot pressing molding, so that the second fiber forms a molten state during the hot pressing process to bond to the first fiber, and after curing, a single-shell structure mask 100 with a specific shape is formed; the mask 100 has a low molding cost and a simple process, and the integrally molded composite fiber cloth 30 has good light-shielding, support, and air permeability, and does not require traditional mask injection molding process and later cloth wrapping process. At the same time, the composite fiber cloth 30 can give the mask 100 lightweight performance and improve user wearing comfort.

Please refer to FIG. 7 again. After the mask 100 is formed, the method for preparing the mask 100 further includes the following steps:

Step S30 , heat-treating the shell 10 and performing secondary molding on the shell 10 , wherein the heat-treating temperature is greater than the softening point of the second fibers 22 and less than the melting point of the second fibers 22 .

Since it is difficult for existing masks to meet the facial shapes of different wearers, and the existing masks cannot be adjusted after being formed, the embodiment of the present application uses a composite fiber 20 formed by a second fiber 22 with a lower melting point and a first fiber 21 with a higher melting point to be integrally woven and hot pressed to form a mask 100. Since the melting point of the matrix 1 is low, the softening point will be even lower, thereby giving the mask 100 a low-temperature secondary molding effect. By subjecting the mask 100 to a local low-temperature heat treatment, the matrix 1 softens at a lower temperature, and the local shape of the softened shell 10 can be slightly adjusted by pressing and the like, so that the mask 100 fits the wearer's face better. Please refer to the above for specific embodiments.

In some embodiments, the heat treatment method can be a hot air blowing method, or a heating method similar to hot air blowing. In order to facilitate the secondary heat treatment molding of the shell 10, the melting point of the matrix 1 is further 60°C to 100°C. Since the melting point of the matrix 1 is low, the softening point will be lower. Therefore, the softening temperature of the matrix 1 within the above melting point range is lower than 100°C, the heat treatment temperature of the shell 10 is low, and the heat treatment method is flexible. During the wearing process of the mask 100, the secondary molding of the shell 10 can be achieved through a simple heat treatment method, and the mask 100 can be given a thermal self-regulation function, which satisfies consumers to fine-tune the shape of the mask 100 according to their personal facial shape and improves the fit of the mask 100.

The preparation method of the mask 100 of the embodiment of the present application can form a mask 100 of an integrated single shell structure through the integrated weaving and hot pressing process of multiple composite fibers 20. Compared with the traditional mask, it does not require an injection molding process, the process is simple, the cost is low, and the one-time molding does not require assembly. The integrated weaving can effectively reduce the weight of the mask 100 and improve the wearing comfort. Moreover, since the second fiber 22 used has a low melting point, the mask 100 is endowed with the function of thermal self-regulation, which satisfies consumers to fine-tune the shape of the mask 100 according to their personal facial shape and improves the fit of the mask 100.

It should be noted that the above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application; the implementation methods and features of the implementation methods of the present application can be combined with each other without conflict. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

A mask, characterized in that the mask is a single-shell structure, the mask includes a shell, the shell includes a matrix and a woven structure layer, the woven structure layer includes a plurality of first fibers woven together, the matrix is used to bond the plurality of first fibers, and the melting point of the matrix is lower than the melting point of the first fibers.
The mask according to claim 1, characterized in that the weight percentage of the matrix in the shell is greater than or equal to 30wt.%.
The mask according to claim 1 or 2, characterized in that the thickness of the shell is 0.3 mm to 1.0 mm.
The mask according to any one of claims 1 to 3, characterized in that the melting point of the matrix is 60°C to 150°C.
The mask according to claim 4, characterized in that the material of the matrix includes at least one of polyester and polyamide.
The mask according to claim 4 or 5 is characterized in that the shell is used for secondary molding after heat treatment, and the temperature of the heat treatment is greater than the softening point of the matrix and less than the melting point of the matrix.
The mask according to any one of claims 1 to 6, characterized in that the shell comprises multiple layers of the woven structure layers, and at least two layers of the woven structure layers have different mesh counts.
The mask according to any one of claims 1 to 7, characterized in that the shell further comprises a resin film located on a surface of the woven structure layer.
The mask according to any one of claims 1 to 8, characterized in that the shell includes a support frame and a mounting portion located in the support frame, and the mounting portion is provided with a mounting hole.
The mask according to claim 9 is characterized in that it also includes a magnetic member, wherein the magnetic member is arranged on the mounting portion around the mounting hole, and the magnetic member is located in the woven structure layer.
A method for preparing a face mask, characterized in that it comprises the following steps:

Weaving a plurality of composite fibers into a composite fiber cloth, wherein the composite fibers include a first fiber and a second fiber; and

The composite fiber cloth is hot-pressed to form a woven structure layer by woven multiple first fibers, and the second fibers are melted and solidified into a matrix, and the matrix is bonded to the woven structure layer to obtain the single-shell mask.
The preparation method according to claim 11 is characterized in that the second fiber is a hot melt fiber, and the melting point of the second fiber is 60°C to 150°C.
The preparation method according to claim 12 is characterized in that the material of the hot melt layer includes at least one of polyester and polyamide.
The preparation method according to claim 12 or 13, characterized in that the preparation method of the mask further comprises:

The shell is heat-treated and secondary molded, wherein the heat-treatment temperature is greater than the softening point of the second fiber and less than the melting point of the second fiber.
The preparation method according to claim 14 is characterized in that the heat treatment method includes hot blowing.
The preparation method according to any one of claims 11 to 15 is characterized in that the weaving comprises at least one of knitting, weaving and non-woven.
The preparation method according to any one of claims 11 to 16 is characterized in that the weaving includes at least one of single-layer weaving, double-layer weaving, and multi-layer weaving of more than double layers.
The preparation method according to any one of claims 11 to 17, characterized in that the composite fiber cloth comprises multiple layers of first fiber sheets, and at least two layers of the first fiber sheets have different mesh sizes.
The preparation method according to any one of claims 11 to 18, characterized in that the composite fiber cloth further comprises at least one layer of a second fiber sheet formed by weaving a plurality of the second fibers together, the second fiber sheet being located at the outermost layer of the composite fiber cloth, and the step of hot pressing the composite fiber cloth further comprises:

The second fiber sheet is melted and solidified into a resin film.
The preparation method according to any one of claims 11 to 19 is characterized in that the step of weaving the composite fibers into a composite fiber cloth further comprises the following steps:

The magnetic element is woven into the composite fiber cloth.
The preparation method according to any one of claims 11 to 20 is characterized in that the second fiber is in the composite fiber The weight percentage is greater than or equal to 30wt.%.
The preparation method according to any one of claims 11 to 21 is characterized in that the diameter of the composite fiber is 30D to 300D.
An electronic device, characterized in that it comprises a mask and a lens barrel module connected to the mask, wherein the mask is the mask as described in any one of claims 1 to 10 or is a mask made by the mask preparation method as described in any one of claims 11 to 22.