Sweat absorption pad for respirator and respirator

Abstract

There is provided a sweat absorbent pad for a respirator, the sweat absorbent pad comprising: a foam body formed of a porous hydrophilic foam for collecting and retaining moisture and / or sweat, the foam main body is provided with a first main surface, a second main surface opposite to the first main surface, and a side surface connected with the first main surface and the second main surface; the moisture-proof layer is arranged on the first main surface of the foam main body and covers at least one part of the first main surface, and the moisture-proof layer is used for locking the moisture and / or sweat collected and kept in the foam main body in the foam main body so as to prevent the moisture and / or sweat from escaping from the foam main body. The utility model further provides a respirator comprising the sweat absorbing pad.

Description

Technical Field

[0001] This utility model relates to a sweat-absorbing pad for a respirator and a respirator. Background Technology

[0002] The content in this section only provides background information related to this utility model and may not constitute prior art.

[0003] Respirators, as commonly used protective equipment, are frequently used to protect against dust, droplets, bacteria, and other harmful substances, and are widely used in specific work environments and daily life. In practical applications, especially for workers engaged in heavy physical labor, the moisture exhaled and / or sweat expelled by the wearer can easily accumulate inside the respirator, affecting the wearer's comfort. Particularly for wearers who wear glasses, if the temperature inside the respirator is higher than the ambient temperature, the exhaled moisture and sweat will cause the glasses to fog up, further impacting the wearer's comfort. Furthermore, when the moisture and / or sweat accumulate to a certain level inside the respirator, there is a risk of liquid dripping from the respirator and contaminating the work environment. Utility Model Content

[0004] At least one objective of this invention is to address at least one aspect of the aforementioned problems and / or defects existing in the prior art.

[0005] According to one aspect of the present invention, a sweat-absorbing pad for a respirator is provided, the sweat-absorbing pad comprising:

[0006] A foam body, formed of porous hydrophilic foam, for collecting and retaining moisture and / or sweat, wherein the foam body has a first main surface, a second main surface opposite to the first main surface, and a side surface connecting the first main surface and the second main surface; and

[0007] A moisture-proof layer is disposed on the first main surface of the foam body and covers at least a portion of the first main surface, for locking moisture and / or sweat collected and retained in the foam body within the foam body to prevent moisture and / or sweat from escaping from the foam body.

[0008] In some exemplary embodiments, the moisture-proof layer may be glued or laminated to the first main surface of the foam body.

[0009] In some exemplary embodiments, the sweat-absorbing pad may further include a phase change material coating applied to at least a portion of the second main surface of the foam body.

[0010] In some exemplary embodiments, the thickness of the foam body can range from about 5 mm to about 15 mm, the thickness of the moisture barrier can range from about 5 micrometers to about 20 micrometers, and the thickness of the phase change material coating can range from about 1 micrometer to about 50 micrometers.

[0011] In some exemplary embodiments, the foam body may be polyether polyurethane foam or polyester polyurethane foam; the moisture-proof layer may be a polyurethane film or a thermoplastic polyurethane film.

[0012] In some exemplary embodiments, the sweat pad is adapted to be attached to the interior of a respirator.

[0013] In some exemplary embodiments, the sweat pad may have a shape that matches the interior of the respirator; the cross-section of the sweat pad may be teardrop-shaped, crescent-shaped, butterfly-shaped, or rectangular.

[0014] In some exemplary embodiments, the foam body has a first opening extending from the first main surface to the second main surface, the first opening being adapted to match the exhalation port of the respirator; and / or the foam body has a second opening extending from the first main surface to the second main surface, the second opening being adapted to match the inhalation port of the respirator.

[0015] In some exemplary embodiments, the sweat pad may further include a locking member disposed on the foam body and used to lock the sweat pad to the interior of the respirator.

[0016] In some exemplary embodiments, the sweat pad is reusable.

[0017] According to one aspect of the present invention, a respirator is also provided, the respirator comprising: a respirator body; and a sweat-absorbing pad according to any of the foregoing exemplary embodiments, the sweat-absorbing pad being attached to the interior of the respirator body to collect and retain moisture and / or sweat from the respirator wearer.

[0018] The sweat-absorbing pad and respirator provided according to the foregoing exemplary embodiments of the present invention improve the wearer's experience by collecting and retaining the moisture exhaled and / or sweat expelled by the respirator wearer in the sweat-absorbing pad. Furthermore, it reduces the risk of liquid dripping from the respirator and contaminating the work environment. Attached Figure Description

[0019] Embodiments of the present invention will be described below by way of example only with reference to the accompanying drawings. In the drawings, the same features or parts are indicated by the same reference numerals, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 This is a three-dimensional structural schematic diagram showing a sweat-absorbing pad for a respirator according to a first exemplary embodiment of the present invention;

[0021] Figure 2 This is a front view schematic diagram showing the sweat-absorbing pad for a respirator according to a first exemplary embodiment of the present invention;

[0022] Figure 3 This is a side view structural schematic diagram showing a sweat-absorbing pad for a respirator according to a first exemplary embodiment of the present invention;

[0023] Figure 4 This is a three-dimensional structural schematic diagram showing a sweat-absorbing pad for a respirator according to a second exemplary embodiment of the present invention;

[0024] Figure 5 This is a front view structural schematic diagram showing the sweat-absorbing pad for a respirator according to a second exemplary embodiment of the present invention;

[0025] Figure 6 This is a side view of the structure of a sweat-absorbing pad for a respirator according to a second exemplary embodiment of the present invention;

[0026] Figure 7 This is a three-dimensional structural schematic diagram showing a sweat-absorbing pad for a respirator according to a third exemplary embodiment of the present invention;

[0027] Figure 8 This is a front view structural schematic diagram showing the sweat-absorbing pad for a respirator according to a third exemplary embodiment of the present invention;

[0028] Figure 9 This is a side view structural schematic diagram showing a sweat-absorbing pad for a respirator according to a third exemplary embodiment of the present invention. Detailed Implementation

[0029] The following description is exemplary in nature and is not intended to limit the application and use of this invention. It should be understood that in all these figures, similar reference numerals indicate the same or similar parts and features. The figures only schematically illustrate the concept and principles of embodiments of this invention and do not necessarily show the specific dimensions and proportions of each embodiment. Certain parts of specific figures may be depicted in an exaggerated manner to illustrate relevant details or structures of embodiments of this invention.

[0030] In the description of the embodiments of this utility model, the directional terms related to "up," "down," "left," and "right" are used to describe the positions of the views shown in the accompanying drawings. In practical applications, the positional relationships of "up," "down," "left," and "right" used herein can be defined according to the actual situation, and these relationships can be reversed.

[0031] This invention provides a sweat-absorbing pad that is suitable for use with respirators. Figures 1 to 9 As shown, according to an exemplary embodiment of the present invention, the sweat-absorbing pad 100 has an integral structure, mainly comprising a foam body 10 and a moisture-proof layer 20. The foam body 10 is formed of flexible porous hydrophilic foam for collecting and retaining moisture and / or sweat. In the present invention, the term "porous hydrophilic foam" refers to a hydrophilic foam having a porous structure, wherein "porous" refers to a state in which a certain volume of solid material and a certain volume of pores are mixed. The porous hydrophilic foam may include, for example, but not limited to, polyether polyurethane foam or polyester polyurethane foam. For example, the porous hydrophilic foam formed by the aforementioned materials may have a compressive stress (40%) between 2-8 kPa (ISO 3386-1) and a density of less than 100 kg / m³. 3 This effectively collects and retains moisture and / or sweat within the foam body 10. The moisture barrier 20 is formed in the form of a film, such as, but not limited to, a polyurethane (PU) film or a thermoplastic polyurethane (TPU) film. According to this invention, the moisture barrier 20 can be flexibly applied to a main surface of the foam body 10 by adhesive bonding or lamination, covering at least a portion or even all of the main surface. The moisture barrier 20 can prevent moisture and / or sweat from directly penetrating the foam body 10, thereby locking the collected and retained moisture and / or sweat within the foam body 10 to prevent escape.

[0032] According to an exemplary embodiment of the present invention, such as Figures 1 to 9 As shown, the foam body 10 has a first main surface 11, a second main surface 12 opposite to the first main surface 11, and a side surface 13 connecting the first main surface 11 and the second main surface 12. A moisture barrier 20 is disposed on the first main surface 11 of the foam body 10 and covers at least a portion or even all of the first main surface 11, for locking moisture and / or sweat collected and retained in the foam body 10 within the foam body 10 to prevent moisture and / or sweat from escaping from the foam body 10. For example, the moisture barrier 20 may be glued or laminated to the first main surface 11 of the foam body 10.

[0033] According to this utility model, such as Figures 1 to 9As shown, the sweat-absorbing pad 100 may further include a phase change material coating 30. The phase change material coating 30 is applied to at least a portion or even all of the second main surface 12 of the foam body 10. The phase change material coating 30 is formed as a coating applied to the main surface of the foam body 10, and its material includes, but is not limited to, DevanMikrathermic DP G-W501. By providing the phase change material coating 30, the cooling rate of moisture and / or sweat can be accelerated, improving liquefaction efficiency. Furthermore, the phase change material can also provide a cooling sensation to the user.

[0034] According to this utility model, such as Figures 1 to 9 As shown, the foam body 10 has a first opening 14 extending from a first main surface 11 to a second main surface 12, the first opening 14 being adapted to mate with the exhalation port of a respirator; and / or the foam body 10 has a second opening 15 extending from the first main surface 11 to the second main surface 12, the second opening 15 being adapted to mate with the inhalation port of a respirator. For example, in Figures 1 to 3 In the first exemplary embodiment shown, the foam body 10 has a first opening 14 extending from a first main surface 11 to a second main surface 12 and adapted to match the exhalation port of a respirator, and also has a second opening 15 extending from the first main surface 11 to the second main surface 12 and adapted to match the inhalation port of a respirator. The first opening 14 and the second opening 15 are independent of each other and separate. Figures 4 to 6 In the second exemplary embodiment shown, the foam body 10 has a single opening 14 extending from a first main surface 11 to a second main surface 12 and adapted to match the exhalation and / or inhalation ports of a respirator. Figures 7 to 9 In the third exemplary embodiment shown, the foam body 10 may not have an opening.

[0035] According to this invention, the thickness of the foam body 10 can range from about 5 mm to about 15 mm, the thickness of the moisture-proof layer 20 can range from about 5 micrometers to about 20 micrometers, and the thickness of the phase change material coating 30 can range from about 1 micrometer to about 50 micrometers. For example, in Figures 1 to 3 In the exemplary embodiment shown, the foam body 10 is a porous hydrophilic foam with a thickness of about 10 mm, the moisture barrier 20 is a TPU film with a thickness of about 13 micrometers, and the phase change material coating 30 is of an appropriate thickness as required.

[0036] According to this invention, the sweat-absorbing pad 100 is suitable for attachment to the interior of a respirator. According to the design concept of this invention, the sweat-absorbing pad 100 has a shape that matches the interior of the respirator. Therefore, the sweat-absorbing pad 100 can be customized according to the specific shape and / or specific dimensions of the space inside the respirator for placing the sweat-absorbing pad 100. For example, the cross-section of the sweat-absorbing pad 100 can be teardrop-shaped, crescent-shaped, butterfly-shaped, or rectangular. For instance, in... Figures 1 to 3 In the first exemplary embodiment shown, the sweat-absorbing pad 100 has a generally teardrop-shaped cross-section. Figures 4 to 6 In the second exemplary embodiment shown, the sweat-absorbing pad 100 has a generally crescent-shaped cross-section. Figures 7 to 9 In the third exemplary embodiment shown, the sweat pad 100 has a generally butterfly-shaped cross-section. Furthermore, the size of the sweat pad 100 may be slightly larger than the size of the space inside the respirator used to house it, to ensure that the sweat pad 100 can be securely placed within that space. Additionally, the sweat pad 100 may also include a locking member (not shown), disposed on the foam body 10, for locking the sweat pad 100 to the space inside the respirator used to house it.

[0037] Furthermore, the sweat-absorbing pad 100 provided by this utility model is reusable. For example, the sweat-absorbing pad 100 can be reused after being washed and dried.

[0038] This invention also provides a respirator. The respirator includes: a respirator body; and a sweat-absorbing pad 100 according to any of the foregoing exemplary embodiments, the sweat-absorbing pad 100 being attached to the interior of the respirator body to collect and retain moisture and / or sweat from the respirator wearer. In this invention, the term "respirator" refers to a device worn by a person to filter air before it enters the person's respiratory system. The term "respirator body" refers to an air-permeable structure that conforms at least to the nose and mouth of a person and helps define an internal gas space separated from the external gas space.

[0039] The sweat-absorbing pad for respirators provided according to the foregoing exemplary embodiments of the present invention improves the wearer's experience by collecting and retaining the moisture exhaled and / or sweat expelled by the respirator wearer in a sweat-absorbing pad located inside the respirator. Furthermore, it reduces the risk of liquid dripping from the respirator and contaminating the work environment.

[0040] In the above embodiments, the application of the sweat-absorbing pad according to the present invention in a respirator is shown as the target product. However, it should be understood that the sweat-absorbing pad according to the present invention can also be applied to other target products besides respirators.

[0041] Exemplary embodiments of the present invention have been described in detail herein; however, it should be understood that the present invention is not limited to the specific embodiments described and shown above. Various modifications and variations can be made to the present invention by those skilled in the art without departing from its spirit and scope. All such modifications and variations fall within the scope of the present invention. Moreover, all components described herein can be replaced by other technically equivalent components.

Claims

1. A sweat-absorbing pad (100) for a respirator, characterized in that, The sweat-absorbing pad includes: A foam body (10), formed of porous hydrophilic foam, for collecting and retaining moisture and / or sweat, wherein the foam body has a first main surface (11), a second main surface (12) opposite to the first main surface, and a side surface (13) connecting the first main surface and the second main surface; and A moisture barrier (20) is disposed on the first main surface of the foam body and covers at least a portion of the first main surface, for locking moisture and / or sweat collected and retained in the foam body in the foam body to prevent moisture and / or sweat from escaping from the foam body.

2. The sweat-absorbing pad according to claim 1, characterized in that, The moisture-proof layer is glued or laminated to the first main surface of the foam body.

3. The sweat-absorbing pad according to claim 1, characterized in that, The sweat-absorbing pad includes a phase change material coating (30) applied to at least a portion of the second main surface of the foam body.

4. The sweat-absorbing pad according to claim 3, characterized in that, The thickness of the foam body is in the range of 5 mm to 15 mm, the thickness of the moisture-proof layer is in the range of 5 micrometers to 20 micrometers, and the thickness of the phase change material coating is in the range of 1 micrometer to 50 micrometers.

5. The sweat-absorbing pad according to claim 1, characterized in that, The foam body is polyether polyurethane foam or polyester polyurethane foam. The moisture-proof layer is a polyurethane film or a thermoplastic polyurethane film.

6. The sweat-absorbing pad according to any one of claims 1 to 5, characterized in that, The sweat-absorbing pad is suitable for attachment to the interior of a respirator.

7. The sweat-absorbing pad according to claim 6, characterized in that, The sweat-absorbing pad has a shape that matches the interior of the respirator; The cross-section of the sweat-absorbing pad is teardrop-shaped, crescent-shaped, butterfly-shaped, or rectangular.

8. The sweat-absorbing pad according to claim 6, characterized in that, The foam body has a first opening (14) extending from the first main surface to the second main surface, the first opening being adapted to match the exhalation port of the respirator; and / or The foam body has a second opening (15) extending from the first main surface to the second main surface, the second opening being adapted to match the inhalation port of the respirator.

9. The sweat-absorbing pad according to claim 6, characterized in that, The sweat-absorbing pad further includes a locking member disposed on the foam body and used to lock the sweat-absorbing pad into the interior of the respirator.

10. The sweat-absorbing pad according to claim 6, characterized in that, The sweat-absorbing pad is reusable.

11. A respirator, characterized in that, The respirator includes: The respirator body; and The sweat-absorbing pad according to any one of claims 1 to 10 is attached to the interior of the respirator body to collect and retain moisture and / or sweat from the respirator wearer.

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