A moisture-sensitive color-changing face mask

CN224853434UActive Publication Date: 2026-10-16SICHUAN UNIV
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Patent Information

Application Number
CN202521067982.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2025-05-13
Filing Date
2025-05-28
Publication Date
2026-10-16
Estimated Expiration
2035-05-28

AI Technical Summary

Technical Problem

然而对于部分基层医疗机构的医生或缺乏经验的医生而言,准确鉴别和诊断这一问题仍然存在较大难度

Benefits of technology

[0018] This invention features a simple structure, a scientific and reasonable design, and is easy to use and non-invasive. It can determine the airflow path of exhalation through intuitive color changes, with accurate results. It is especially suitable for early home screening of children with poor mouth breathing habits and for assisting orthodontists in their examination and judgment.

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Abstract

The utility model discloses a kind of humidity-sensitive color change masks, belong to medical equipment technical field.The humidity-sensitive color change mask of the utility model, including color change mask main part, color change mask main part includes that mask support layer is sequentially arranged from outside to inside, humidity-sensitive color change layer and medical skin-friendly layer;Three color change areas of humidity-sensitive color change layer are equipped with variable color by humidity;Color change area includes the first color change area, second color change area and third color change area located in lip part after being respectively located in the both sides of person's nose by wearing.The utility model is simple in structure, scientific and reasonable in design, convenient to use, non-invasive, can judge exhalation airflow path by intuitive color change, result is accurate, especially applicable to early family screening and auxiliary orthodontist's inspection judgment of children oral breathing bad habit.The utility model has the advantages of low cost, convenient to observe, can be popularized to family and primary medical institutions use, help disease screening and formulate individualized correction strategy, improve clinical intervention effect.
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Description

Technical Field

[0001] This utility model belongs to the field of medical equipment technology, specifically relating to a moisture-sensitive color-changing face mask. Background Technology

[0002] Childhood and adolescence are critical stages for maxillofacial growth and development, and breathing patterns have a profound impact on upper airway function, jawbone development, facial morphology, and dentofacial relationships. Normal nasal breathing helps maintain nasal ventilation and normal jawbone development. However, long-term mouth breathing is often associated with upper airway obstruction diseases such as adenoid hypertrophy, deviated nasal septum, chronic rhinitis, or allergic rhinitis. This bad habit can easily lead to abnormalities of the maxillofacial system, such as narrow maxillary arch, high palate, and impaired lip-tooth closure, which in turn negatively affect facial development, oral health, and psychosocial function in children and adolescents. Therefore, early identification and intervention of abnormal breathing patterns, especially mouth breathing, is of great significance for preventing malocclusion and optimizing orthodontic treatment plans.

[0003] Parents are often very anxious about their children's mouth breathing habits, but are unable to make a preliminary judgment or simple identification. During the initial orthodontic consultation, clinicians often make a preliminary judgment on the presence of mouth breathing habits by observing facial features, lip closure, and using methods such as the cotton ball test, mirror test, and consultation with the patient's medical history. However, for some doctors in primary healthcare institutions or those lacking experience, accurate identification and diagnosis remain quite difficult. Furthermore, these methods are highly subjective and easily affected by the child's cooperation (especially in young children) and the environment. Patent publication number CN 111759358A discloses a temperature-sensitive composite material mouth breathing early screening device, mainly for regular mouth breathing screening in a home environment, but its structure is complex and highly susceptible to dynamic environmental interference. Patent publication number CN116889392A discloses a sensor for detecting mouth and nose breathing, which relies on complex circuitry and is costly. Currently, there is still a lack of an objective auxiliary tool in clinical practice that is easy to operate, intuitive, reliable, and suitable for rapid screening, in order to help identify children with mouth breathing in the early stages of orthodontics and guide personalized treatment plans.

[0004] Therefore, providing a moisture-sensitive color-changing mask that can easily and quickly monitor airflow through the mouth and nose, and is convenient to use, has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a moisture-sensitive color-changing mask that is suitable for children during the initial orthodontic consultation. The color change of the moisture-sensitive material can intuitively reflect the path and degree of airflow through the mouth and nose, so as to help doctors quickly determine the child's breathing pattern.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model discloses a moisture-sensitive color-changing face mask, including a color-changing face mask body. The color-changing face mask body includes a face mask support layer, a moisture-sensitive color-changing layer and a medical skin-friendly layer arranged sequentially from the outside to the inside. The moisture-sensitive color-changing layer is provided with three color-changing areas that change color when exposed to moisture. The color-changing areas include a first color-changing area, a second color-changing area, and a third color-changing area located on both sides of the nose and lips, respectively, after wearing the mask.

[0008] In some embodiments of this utility model, a moisture-sensitive color-changing material is provided on the surface of the color-changing area.

[0009] In some embodiments of this utility model, a colorimetric reference area is provided on the mask support layer.

[0010] In some embodiments of this utility model, the color-changing mask body also includes a fun appearance design layer disposed on the outside of the mask support layer, and the fun appearance design layer is provided with an observation window adapted to the color-changing area.

[0011] In some embodiments of this utility model, a colorimetric reference area is provided on the fun appearance design layer.

[0012] In some embodiments of this utility model, two colorimetric reference areas are provided on the fun design layer, which are located on both sides of the lower part of the fun design layer.

[0013] In some embodiments of this utility model, the colorimetric reference area includes five standard color blocks of varying shades, each corresponding to a moisture airflow level of 0 to 4.

[0014] In some embodiments of this utility model, the outer and inner peelable protective film layers are respectively attached to the inner and outer sides of the color-changing mask body for protection.

[0015] In some embodiments of this utility model, the color-changing mask body is provided with a flexible nose bridge strip and ear loops.

[0016] In some embodiments of this utility model, the mask support layer is made of TPU film or elastic polyurethane film with good light transmittance, and its thickness does not exceed 1mm.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention features a simple structure, a scientific and reasonable design, and is easy to use and non-invasive. It can determine the airflow path of exhalation through intuitive color changes, with accurate results. It is especially suitable for early home screening of children with poor mouth breathing habits and for assisting orthodontists in their examination and judgment.

[0019] This invention has the advantages of low cost, easy observation, and can be promoted to grassroots and family use, which helps in disease screening and the development of individualized treatment strategies, and improves the effectiveness of clinical intervention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of each layer of the main body of the color-changing face mask of this utility model;

[0022] Figure 3 This is an exploded view of the present invention.

[0023] The names corresponding to the reference numerals in the attached figures are as follows:

[0024] 1-Mask support layer, 2-Moisture-sensitive color-changing layer, 3-Color-changing area, 31-First color-changing area, 32-Second color-changing area, 33-Third color-changing area, 4-Colorimetric reference area, 5-Fun design layer, 6-Observation window, 7-Standard color block, 8-Outer peelable protective film layer, 9-Inner peelable protective film layer, 10-Color-changing mask body, 11-Flexible nose bridge strip, 12-Ear loop elastic band, 13-Medical skin-friendly layer. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Example 1

[0027] like Figures 1-3 As shown, this embodiment discloses a moisture-sensitive color-changing face mask, including a color-changing face mask body 10. The color-changing face mask body 10 includes a face mask support layer 1, a moisture-sensitive color-changing layer 2, and a medical skin-friendly layer 13 arranged sequentially from the outside to the inside. The moisture-sensitive color-changing layer 2 is provided with color-changing areas 3 that change color when exposed to moisture. The color-changing areas 3 include a first color-changing area 31, a second color-changing area 32 located on both sides of the nose after wearing, and a third color-changing area 33 located at the lips.

[0028] This novel moisture-sensitive color-changing mask has a simple and non-invasive structure. It can intuitively determine the path of exhaled airflow through color changes, making it particularly suitable for early screening of mouth breathing habits during initial orthodontic consultations in children. To prevent interference between exhaled airflows from different sources, the color-changing area 3 of the moisture-sensitive color-changing layer 2 is divided into three independent areas, located on both sides of the patient's nose and lips, respectively, to respond to moisture signals from nasal and mouth breathing, thus making the judgment results more accurate.

[0029] Example 2

[0030] like Figures 1-3 As shown, this embodiment discloses a moisture-sensitive color-changing face mask, including a color-changing face mask body 10, which includes a face mask support layer 1, a moisture-sensitive color-changing layer 2, and a medical skin-friendly layer 13 arranged sequentially from the outside to the inside; wherein the moisture-sensitive color-changing layer 2 is provided with a color-changing area 3 that changes color when exposed to moisture; the color-changing area 3 includes a first color-changing area 31, a second color-changing area 32 located on both sides below the nose after wearing, and a third color-changing area 33 located at the lips.

[0031] The surface of the color-changing area 3 is covered with a moisture-sensitive color-changing material.

[0032] The substrate of the moisture-sensitive color-changing layer 2 can be a flexible, breathable material such as non-woven fabric, nanofiber membrane, or medical polyester film. A cobalt-free moisture-sensitive color-changing material is disposed on the surface of its color-changing area 3. The moisture-sensitive material is selected from commercially available cobalt-free salt-based moisture-sensitive paper (manufacturer: Shenzhen Yixinyuan Moisture-proof Products Co., Ltd.; model: cobalt-free 9-point moisture-sensitive paper). The moisture-sensitive color-changing paper is firmly set onto the substrate surface through adhesion, hot-pressing lamination, or physical embedding. It detects relative humidity (RH) of 10%–90% in the airflow and rapidly changes color when it senses the passage of moisture, with a color change response time ≤30s. Depending on the duration of the airflow and the degree of humidity accumulation, a color gradient change can be observed, such as brown → blue.

[0033] This embodiment 2 provides a more preferred technical solution based on embodiment 1. Specifically, the color-changing area 3 is provided with a moisture-sensitive color-changing material, which can be used to determine bad mouth breathing habits through color changes.

[0034] Example 3

[0035] like Figures 1-3 As shown, this embodiment discloses a moisture-sensitive color-changing face mask, including a color-changing face mask body 10, which includes a face mask support layer 1, a moisture-sensitive color-changing layer 2, and a medical skin-friendly layer 13 arranged sequentially from the outside to the inside; wherein the moisture-sensitive color-changing layer 2 is provided with a color-changing area 3 that changes color when exposed to moisture; the color-changing area 3 includes a first color-changing area 31, a second color-changing area 32 located on both sides below the nose after wearing, and a third color-changing area 33 located at the lips.

[0036] The surface of the color-changing area 3 is covered with a moisture-sensitive color-changing material.

[0037] The color-changing mask body 10 also includes a fun design layer 5 located outside the mask support layer 1. The fun design layer 5 has an observation window 6 adapted to the color-changing area 3. The fun design layer 5 has two colorimetric reference areas 4, located on the lower sides of the fun design layer 5. The colorimetric reference area 4 includes five standard color blocks 7 with different shades of color, each corresponding to a moisture airflow level of 0 to 4.

[0038] This embodiment 3 provides a more preferred technical solution based on embodiment 2. Specifically, the color-changing mask body 10 also includes a fun design layer 5 located on the outside of the mask support layer 1. The fun design layer 5 has observation windows 6 adapted to the color-changing areas 3. The fun design layer 5 has two color comparison reference areas 4, located on the lower sides of the fun design layer 5. The color comparison reference areas 4 include five standard color blocks 7 of different shades, each corresponding to a moisture airflow level of 0-4. By setting up color comparison reference areas, color comparison can be performed, which helps to analyze and judge the bad habit and severity of mouth breathing, and improves the accuracy of the judgment results. The fun design layer has the appearance of a cartoon mask. The nose and mouth areas of the pattern are respectively provided with translucent observation windows 6, so that the three color-changing areas of the inner moisture-sensitive color-changing area can be fully exposed when wearing the mask. It is also cleverly integrated with the design of the facial organs of cartoon animals, making the visual feedback of breathing behavior more interesting and intuitive, and enhancing children's compliance with wearing the mask. The fun-designed outer layer is made of breathable PU decorative film or printed non-woven fabric, which supports customized production, has mass production feasibility, and increases good compliance among children.

[0039] In this embodiment, the standard color blocks are a visualization tool built upon professional medical knowledge, behavioral data analysis, and health assessment results. They differentiate and label colors based on different humidity levels, airflow intensity, and accumulation levels. Color levels 0-4 are set according to the degree of humid airflow passage and accumulation within 10 minutes: Level 0: Dark brown (low humidity, RH 60%-70%); Level 1: Light brown or yellowish-brown (mildly humid, RH 70%-75%); Level 2: Green or cyan (moderate humidity, RH 75%-80%); Level 3: Light blue (high humidity, RH 80%-90%); Level 4: Blue (extremely humid, RH 90%-100%). This allows for a direct and accurate assessment of the actual airflow conditions through the mouth and nose, combined with professional analysis to assist in evaluating the habit and severity of mouth breathing.

[0040] Example 4

[0041] like Figures 1-3As shown, this embodiment discloses a moisture-sensitive color-changing face mask, including a color-changing face mask body 10, which includes a face mask support layer 1, a moisture-sensitive color-changing layer 2, and a medical skin-friendly layer 13 arranged sequentially from the outside to the inside; wherein the moisture-sensitive color-changing layer 2 is provided with a color-changing area 3 that changes color when exposed to moisture; the color-changing area 3 includes a first color-changing area 31, a second color-changing area 32 located on both sides below the nose after wearing, and a third color-changing area 33 located at the lips.

[0042] The surface of the color-changing area 3 is covered with a moisture-sensitive color-changing material.

[0043] The color-changing mask body 10 also includes a fun design layer 5 located outside the mask support layer 1. The fun design layer 5 has an observation window 6 adapted to the color-changing area 3. The fun design layer 5 has two colorimetric reference areas 4, located on the lower sides of the fun design layer 5. The colorimetric reference area 4 includes five standard color blocks 7 with different shades of color, each corresponding to a moisture airflow level of 0 to 4.

[0044] The color-changing mask body 10 has an outer peelable protective film layer 8 and an inner peelable protective film layer 9 attached to its inner and outer sides, respectively, to provide protection.

[0045] This embodiment 4 provides a more preferred technical solution based on embodiment 3. Specifically, the outer peelable protective film layer 8 and the inner peelable protective film layer 9 are respectively attached to the inner and outer sides of the color-changing mask body 10 to provide protection, preventing moisture and pollution, and avoiding premature discoloration of the moisture-sensitive material due to environmental humidity.

[0046] Example 5

[0047] like Figures 1-3 As shown, this embodiment discloses a moisture-sensitive color-changing face mask, including a color-changing face mask body 10, which includes a face mask support layer 1, a moisture-sensitive color-changing layer 2, and a medical skin-friendly layer 13 arranged sequentially from the outside to the inside; wherein the moisture-sensitive color-changing layer 2 is provided with a color-changing area 3 that changes color when exposed to moisture; the color-changing area 3 includes a first color-changing area 31, a second color-changing area 32 located on both sides below the nose after wearing, and a third color-changing area 33 located at the lips.

[0048] The surface of the color-changing area 3 is covered with a moisture-sensitive color-changing material.

[0049] The color-changing mask body 10 also includes a fun design layer 5 located outside the mask support layer 1. The fun design layer 5 has an observation window 6 adapted to the color-changing area 3. The fun design layer 5 has two colorimetric reference areas 4, located on the lower sides of the fun design layer 5. The colorimetric reference area 4 includes five standard color blocks 7 with different shades of color, each corresponding to a moisture airflow level of 0 to 4.

[0050] The color-changing mask body 10 has an outer peelable protective film layer 8 and an inner peelable protective film layer 9 attached to its inner and outer sides, respectively, to provide protection.

[0051] The color-changing mask body 10 is equipped with a flexible nose bridge strip 11 and ear loop elastic bands 12.

[0052] The mask support layer 1 is made of TPU film or elastic polyurethane film with a thickness of no more than 1mm and has good light transmission performance.

[0053] This embodiment 5 provides a more preferred technical solution based on embodiment 4. Specifically, the color-changing mask body 10 is provided with a flexible nose bridge strip 11 and ear loop elastic bands 12. The mask support layer 1 is made of TPU film or elastic polyurethane film, with a thickness not exceeding 1mm. In this embodiment, the mask support layer is made of transparent TPU film or elastic polyurethane film with a thickness not exceeding 1mm, giving it good light transmission performance and facilitating observation of color changes in the color-changing area. By providing the flexible nose bridge strip 11 and ear loop elastic bands 12, it is easy to wear and fit the face.

[0054] The outer peelable protective film layer 8 and the inner peelable protective film layer 9 in this embodiment of the present invention are made of transparent PET film or PE film, and have the characteristics of being moisture-proof, transparent and removable.

[0055] In this embodiment of the invention, the fun design layer 5 is made of a breathable printed film or a microporous decorative layer. Its patterns include cartoon animals (cats, dogs, etc.) and cartoon characters. The color-changing area is placed at characteristic locations of the animal patterns (such as nostrils, mouths, cheeks, and paws) to achieve a "fun detection" effect. This layer uses environmentally friendly, skin-friendly ink or transfer film material. Furthermore, colorimetric reference areas (cartoon paws) are provided on both sides below the mask for comparison with the color-changing areas to determine the color change.

[0056] In this embodiment of the invention, the substrate of the moisture-sensitive color-changing layer 2 can be a flexible, breathable material such as non-woven fabric, nanofiber membrane, or medical polyester film.

[0057] In this embodiment of the invention, the medical skin-friendly layer 13 is in direct contact with the facial skin and covers an area beyond the mouth and nose; the main material is medical-grade skin-friendly non-woven fabric.

[0058] In this embodiment of the utility model, the ear-hook elastic bands 12 are located on the outside of the mask body, symmetrically placed, with two bands, the length of which can be adjusted according to the size of the face, and the main material is spandex elastic rope or polyurethane foam material.

[0059] The flexible nose bridge strip 11 in this embodiment of the invention is made of aluminum sheet + PE coating or galvanized iron wire, and can adjust the fit of the mask in a timely manner.

[0060] The method of using this utility model is as follows:

[0061] Before using the mask of this invention, the wearer's facial skin should be cleaned to ensure there is no oil or water residue. After removing the outer peelable protective film layer 8 and the inner peelable protective film layer 9, align the mask body 10 with the mouth and nose area and fit it against the face, securing it to the ears with the ear loops 12. Adjust the flexible nose bridge strip 11 to ensure the mask fits snugly against the bridge of the nose and the curves of the face.

[0062] After wearing the device, guide the wearer to maintain natural breathing, and the observation time is recommended to be set at 10 minutes. During this process, the moisture-sensitive color-changing area will change color upon contact with warm and humid airflow, thus reflecting the path and intensity of airflow through the mouth and nose.

[0063] After use, the color change can be used to determine whether mouth breathing is present and its severity. For further analysis, the color-changing mask can be photographed, and image comparison software can be used to analyze the area and color gradation of the discolored area, providing orthodontists with auxiliary diagnostic information.

[0064] This utility model has a reasonable structural design and is easy to use. It has the advantages of being non-invasive, safe, visual, and having high compliance. It is especially suitable for the early assessment of children's mouth breathing habits and has good promotional value in home and primary healthcare settings.

[0065] Finally, it should be noted that the above embodiments are merely preferred embodiments used to illustrate the technical solution of this utility model, and are not intended to limit it, much less limit the patent scope of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but which still solve the same technical problem as this utility model, should be included within the protection scope of this utility model; in addition, the direct or indirect application of the technical solution of this utility model to other related technical fields are similarly included within the patent protection scope of this utility model.

Claims

1. A moisture-sensitive color-changing face mask, comprising a color-changing face mask body (10), characterized in that, The color-changing mask body (10) includes a mask support layer (1), a moisture-sensitive color-changing layer (2) and a medical skin-friendly layer (13) arranged sequentially from the outside to the inside; wherein the moisture-sensitive color-changing layer (2) is provided with three color-changing areas (3) that change color when exposed to moisture; the color-changing areas (3) include a first color-changing area (31), a second color-changing area (32) located on both sides of the nose after wearing, and a third color-changing area (33) located on the lips.

2. The moisture-sensitive color-changing face mask according to claim 1, characterized in that, The surface of the color-changing area (3) is provided with a moisture-sensitive color-changing material.

3. A moisture-sensitive color-changing face mask according to claim 1, characterized in that, A colorimetric reference area (4) is provided on the mask support layer (1).

4. A moisture-sensitive color-changing face mask according to claim 1, characterized in that, The color-changing mask body (10) also includes a fun appearance design layer (5) located on the outside of the mask support layer (1), and the fun appearance design layer (5) has an observation window (6) adapted to the color-changing area (3).

5. A moisture-sensitive color-changing face mask according to claim 4, characterized in that, The fun design layer (5) has a colorimetric reference area (4).

6. A moisture-sensitive color-changing face mask according to claim 5, characterized in that, Two colorimetric reference areas (4) are provided on the fun design layer (5), located on the lower sides of the fun design layer (5).

7. A moisture-sensitive color-changing face mask according to claim 3, 5, or 6, characterized in that, The colorimetric reference area (4) includes five standard color blocks (7) with different shades of color, each corresponding to a level of moisture flow from 0 to 4.

8. A moisture-sensitive color-changing face mask according to claim 1, characterized in that, The color-changing mask body (10) has an outer peelable protective film layer (8) and an inner peelable protective film layer (9) attached to its inner and outer sides respectively.

9. A moisture-sensitive color-changing face mask according to claim 1, characterized in that, The color-changing mask body (10) is equipped with a flexible nose bridge strip (11) and ear loop elastic bands (12).

10. A moisture-sensitive color-changing face mask according to claim 1, characterized in that, The mask support layer (1) is made of TPU film or elastic polyurethane film with a thickness of no more than 1 mm.

Citation Information

Patent Citations

  • Oral malodor detection device convenient to operate

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