TW202019519A - Anti-leak protective face mask - Google Patents

Abstract

An airtight protective oral mask comprises a mask body that includes at least an outer layer, an middle layer, and an inner layer sequentially disposed; two airtight sheets respectively and fixedly connected to two sides of the mask body, each airtight sheet comprising a fixed part and a close-fitting part extending from the fixed part, the fixed part wrapping around one side of the mask and fixedly connected to the outer layer and the inner layer, the close-fitting part being disposed to correspond to an inner layer direction; two fixed connection area sets each of which is connected with the airtight sheets and the mask body, the fixed connection area sets comprising an upper fixed area and a lower fixed area respectively fused with the upper end and lower end of the corresponding airtight part and the mask body; and a hanging strap set comprising two hanging straps respectively connected to the two sides of the mask body.

Description

Airtight protective mask and its making method

The invention relates to a mask and its manufacturing method, in particular to a gas-tight protective mask and its manufacturing method.

In recent years, the rapid development of industry and cities, various types of factories, coal-fired power plants, and large amounts of exhaust gas emitted by steam and locomotives have caused serious air pollution, dust and haze in the environment (fine suspended particles PM2.5), pollen, dust Entering the human body through the respiratory tract can cause various diseases such as allergies, asthma or colds, sneezing, runny nose, etc., causing the decline of the human immunity, causing various diseases and seriously affecting human health. In particular, the World Health Organization (WHO) announced in 2013 that among the top ten causes of death in the world, seven are closely related to air pollution, which has contributed to increased efforts to prevent haze in various countries around the world, and caused most people to wear various types of masks. The WHO issued a report on October 29, 2018, stating that about 93% of the world’s population, equivalent to 1.8 billion children under the age of 15, were exposed to air pollution and shocked people from all walks of life.

In view of the serious health hazards of dust and haze PM2.5, China and Taiwan formulated and announced national standards for haze-proof masks in 2016/2017 based on the US-standard N95 series and European-standard FFP dust masks. However, according to the Taiwan standard CNS14774 and 14755 protective mask (N95/FFP) D2 adhesion test method, the mask adhesion must be able to reach 100, but according to the test of 100 people from the Taiwan Labor Research Institute (Labor Safety and Health Research Institute), commercially available The average tightness of the two N95 masks is 13.9 and 21.8, while the average value of general planar surgical masks is only 3.10, which is the air leakage rate of 32.3% (that is, the tightness is 67.7%), that is, the bacterial filtration efficiency (BFE) is only 67.7%. Generally, 99% of BFE medical masks are tested according to the standard of N95, that is, 85L instead of 32L wind speed test. The efficiency of filtering dust and haze (PM2.5) is only about 60%, and the overall protection effect is about 40.6% when taking into account the air leakage rate. Due to the progress of production technology in recent years, the salt mist filtration efficiency of N95 dust masks can reach more than 99%. But good masks need to have the characteristics of good adhesion and low pressure difference, but the pressure difference (respiration resistance) of N95 series masks is quite high, which is not suitable for long-term wear, especially the three groups can not be used, such as children, pregnant women And those with weak lungs are not suitable for wearing even if the dust is serious.

In addition, in recent years, various bacterial viruses and influenza have continuously invaded humans in the living environment, such as severe acute respiratory syndrome (SARS), avian influenza (H7N9), swine influenza (H1N1), etc., are killers of human health, showing that high-quality masks are especially dense Masks with good fit and low pressure differential are extremely important for the maintenance of human health.

As shown in FIG. 23, a mask (A3) is disclosed for the Republic of China Patent Publication No. TW201526945A, which includes a mask body (A10) and ear-hanging portions (A12) formed at both lateral ends of the mask body (A10), A plurality of creases (A14) are formed. The plurality of creases (A14) are fixed by a welded portion (A22) formed by heat sealing. The welded portion (A22) is formed in the lateral direction of the mask body (A10). The sides are linearly formed at equal intervals in the longitudinal direction, and the interval between adjacent welding parts (A22) is 3 mm or more. The lateral ends of the mask body (A10) are covered with side straps (A30), and the ear hooks (A12) are attached to the side straps (A30). A side block (A32) covering the gap between the face and the mask body (A10) is provided at both lateral ends of the side of the mask body (A10) abutting on the face of the wearer. The side block (A32) is formed by sandwiching one end of the side insulating tape (A31) formed into a wide band shape between the mask body (A10) and the side tape (A30). The side of the mask body (A10) can be closely adhered to the face, which can suppress the gap between the mask body (A10) and the face and suppress the intrusion of fine particles into the mask.

However, in the above-mentioned published patent, the mask side block (A32) is formed by first welding the upper and lower ends of the side insulating tape (A31) to the upper and lower sides of the mask body (A10) with mesh seals (A17, A24). Then, the side tape (A30) covers the side insulating tape (A31) and the mask body (A10) and is welded. Therefore, the molding steps are numerous and the manufacturing process is complicated. In addition, the way of covering the side insulating tape (A31) and the mask body (A10) with the side tape (A30) will also cause waste of the mask material and increase in production cost.

In view of this, one of the objects of the present invention is to provide a gas-tight protective mask and a manufacturing method thereof. The gas-tight sheet is wrapped on one side of the mask body and fixed on the outer layer and the inner layer for one-time molding, so the manufacturing process and the structure are simple , Low production cost.

Another object of the present invention is to provide a gas-tight protective mask and a method for manufacturing the same, which use L-shaped upper and lower fixed areas to weld the lanyard, which is characterized in that when the two ends of the lanyard are welded, the lanyard can be avoided The problem of being welded at the end.

In order to achieve the above object, the present invention provides a gas-tight protective mask including a mask body with at least one outer layer, a middle layer and an inner layer in sequence; at least two gas-tight sheets are fixed on both sides of the mask body respectively , Each of the airtight sheets includes a fixing portion and a sealing portion extending from the fixing portion, the fixing portion is wrapped on one side of the mask body and fixed on the outer layer and the inner layer, the The adhesion part is arranged corresponding to the direction of the inner layer; two fixing area groups, each of the fixing area groups connects the airtight sheet and the mask body, the fixing area group includes an upper fixing area and a lower fixing area, the The upper and lower fixing areas respectively correspond to the upper and lower ends of the sealing part to be welded to the mask body; and a hanging strap set including two hanging straps to connect the two sides of the mask body respectively.

Preferably, the airtight sheet has a single-layer or multi-layer structure.

Preferably, the wrinkle section of the mask body is omega or zigzag.

Preferably, the lanyard set is located on the outer layer or the inner layer and is arranged toward the inside of the mask body.

Preferably, it further includes an upper airtight sheet fixedly attached to the upper side of the mask body.

Preferably, it further includes an airtight sheet fixedly attached to the lower side of the mask body.

Preferably, the mask body is formed with two longitudinal folds.

Preferably, it further includes an exhalation valve installed on the mask body.

Preferably, it further includes an embedded nose pad embedded in the upper part of the mask body.

In order to achieve the above object, the present invention provides a method for manufacturing a gas-tight protective mask, which includes the following steps: providing a mask body with an inner layer; providing at least one air-tight sheet covering one side of the mask body to An adhesion part is formed on the surface of the inner layer; and a hanging tape set is provided to be welded to the mask body and the adhesion part.

In addition, the present invention has the following features and effects:

(1) Face mask fits around the face. The left and right sides of the mask are closely attached to the bottom and face, and the contact surface is evenly distributed around the mouth and nose, reducing the generation of gaps, preventing dust and particles from drilling through the gap, greatly improving the tightness of the mask, and wearing it more safely and comfortably.

(2) The upper anti-fog and air-tight film is pasted, and the area is increased to effectively block the upward fog and prevent the lens from fogging.

(3) The built-in nose bridge bead structure is close to the nose bridge to effectively prevent dust and particles from drilling into the gap of the nose bridge.

(4) Soft ear lanyard for comfortable wearing on ears. Wear it for a long time, the ear is not easy to feel pain and discomfort.

(5) The double-folded Ω three-dimensional structure keeps the mask and the lips at a certain distance. There is no obstruction when breathing, maintaining a comfortable mouth and nose space, reducing breathlessness and discomfort.

(6) Special three-dimensional diamond shape, comfortable and beautiful to wear. Don't stick to your nose and mouth when wearing, so that you can breathe smoothly, speak naturally, without sticking your lips, and maintain a perfect face.

(7) Use medical grade filter material, mask body 0.1μm submicron particle filtration efficiency (Particulate Filtration Efficiency, PFE) ≧ 99%, bacterial filtration efficiency (Bacterial Filtration Efficiency, BFE) ≧ 99%, in line with general medical grade and surgical mask standards .

(8) The filtration efficiency of the airtight sheet can reach more than 95%, effectively blocking more than 95% of particles in the air less than 0.1μm. It can also be applied to N95 grade anti-haze masks. In addition, depending on the filter material of the mask, the airtight film can meet the N95/N99/N100 series of US-standard dust masks, the EU FFP1/FFP2/FFP3 series or other specifications of the same level.

(9) It can effectively prevent pollen, high-density dust, sand and haze pollution and other harmful substances from inhaling, effectively resist PM 2.5, and isolate 99% of the particles in the bacteria and air. Suitable for countermeasures such as cold, sneezing, flu, pollen, etc. It is the first choice for fog and haze!

The detailed description and technical content of the present invention are described as follows in conjunction with the drawings. However, the drawings are provided for reference and explanation only, and are not intended to limit the present invention.

Please refer to FIG. 1 to FIG. 4, an airtight protective mask provided by the present invention includes a mask body (10), at least two airtight pieces (20), two fixed area groups (30) and a lanyard group ( 40), described as follows:

The mask body (10) is formed with a plurality of horizontal folds (16), and at least one outer layer (11), a middle layer (13) and an inner layer (15) are sequentially arranged inside the mask body. The outer layer (11) may be a water-repellent layer, such as a non-woven fabric with water-repellent function, to prevent the penetration of moisture and liquid. The middle layer (13) may be a filter layer such as an electrostatic high-density melt-blown non-woven fabric to block dust and viruses. The inner layer (15) may be a hydrophilic layer such as a nonwoven fabric of hydrophilic superfine composite fibers, which is soft and comfortable, and effectively absorbs moisture. The wrinkle (16) of the mask body (10) has a Ω-shaped cross-section (as shown in FIG. 4 along the B-B sectional view of FIG. 2), and the double-wrinkle Ω three-dimensional structure can keep the mask and the lips at a certain distance. There is no obstruction when breathing, maintain a comfortable mouth and nose space, reduce breathlessness and discomfort.

At least two airtight sheets (20) are respectively fixed on both sides of the mask body (10), and each airtight sheet (20) includes a fixing portion (21) and a sealing portion (21) extending from the fixing portion (21) 23) (Figure 3 is a cross-sectional view along A-A of Figure 2), the fixing portion (21) is wrapped on the side of the mask body (10) and fixed on the outer layer (11) and the inner layer (15), tightly The joint part (23) is arranged corresponding to the direction of the inner layer (15). Among them, the airtight sheet (20) is a separable or composite nonwoven fabric with a two-layer structure, which is composed of two layers of spunbond and meltblown nonwoven fabric (Spunbond + Meltblown Nonwovens, SM), which is a composite of spunbond and meltblown product. To filter out the dust, particles and dirty air from the sides of the mask.

Two fixed area groups (30), each fixed area group (30) connects the airtight sheet (20) and the mask body (10), and the fixed area group (30) includes an upper fixed area (31) and a lower fixed area Zone (33), upper and lower fixing zones (31, 33) are respectively welded to the mask body (10) corresponding to the upper and lower ends of the adhesion part (23).

The lanyard set (40) includes two lanyards (41), which can be, for example, ear straps fixed to the left and right sides of the mask body (10), wherein the lanyard (41) is fixed to the mask body (10) at one end The upper end is fixed to the lower end. The strap (41) may be an ear strap, a strap or a head strap, but it is not limited thereto.

When the user wears the present invention, as shown in FIG. 5. Please hold the mask first and unfold the folded area to form a body space. The nose piece (19) is outward, and the ear strap (41) is put on so that the mask completely covers the nose, nose and chin. Use two fingers to press the nose piece (19) to make the mask fit snugly to the nose and cheeks. Among them, the sealing part (23) of the airtight sheet (20) can be opened and closely adhere to the face to reduce the generation of gaps, prevent dust and particles from drilling through the gaps, greatly improve the mask tightness, and make wearing more safe and comfort.

Furthermore, the airtight sheet (20) is wrapped on one side of the mask body (10) and fixed on the outer layer (11) and the inner layer (15) to be formed at a time, so the manufacturing process and structure are simple and the production cost is low.

Please refer to FIG. 6, which is a preferred embodiment of the present invention. The difference between this embodiment and the previous embodiment is that it may further include an upper airtight sheet (50) or an anti-fog airtight patch, which is fixed to The upper side of the mask body (10). With this, the area is increased to effectively block the mist upward and prevent the lens from fogging, and the same functions and effects as the above can also be achieved.

Please refer to FIG. 7, which is a preferred embodiment of the present invention. This embodiment differs from the previous embodiment in that it may further include a lower airtight sheet (60) fixedly attached to the lower side of the mask body (10). In this way, the gap between the chin and the mask can be effectively filled, so that the mask can more completely fit the face shape.

Please refer to FIG. 8, which is one of the preferred embodiments of the present invention. This embodiment differs from the previous embodiments in that it may further include an upper airtight sheet (50) and a lower airtight sheet (60), respectively fixed On the upper and lower sides of the mask body (10). In this way, the functions and effects of FIG. 6 and FIG. 7 of the foregoing embodiment are achieved.

Please refer to FIGS. 9-11, which is a preferred embodiment of the present invention. This embodiment differs from the previous embodiment in that the mask body (10) is formed with two longitudinal folds (17) (see FIG. 11 for (C-C sectional view along Fig. 10). In this way, the mask body (10) can form a special three-dimensional diamond shape when it is unfolded, which makes it comfortable and beautiful to wear, and does not stick to the nose and mouth when wearing, smooth breathing, natural speaking, and non-stick lips, which can maintain a perfect face.

Please refer to FIG. 12, which is a preferred embodiment of the present invention. The difference between this embodiment and the previous embodiment is that it further includes an exhalation valve (70), which is installed on the mask body (10). In this way, there is no feeling of obstruction during breathing, which can maintain a comfortable mouth and nose space and reduce feelings of breathlessness and discomfort.

Please refer to FIG. 13 to FIG. 14, which is a preferred embodiment of the present invention. This embodiment differs from the previous embodiment in that it further includes an embedded nose pad (80) or a bridge structure of the nose bridge, which is embedded in the mask The upper part of the body (10) (as shown in FIG. 14 is a sectional view along D-D of FIG. 13), the inserted nose pad (80) includes a nose bridge (81) and an elastic body (83), and the nose bridge (81) is made of plastic parts ( 812) and its coated iron wire (811), the elastic body (83) may be, for example, foam. In this way, the built-in nose pad (80) or nose bridge bead structure can closely adhere to the nose bridge, effectively preventing dust and particles from drilling through the gap of the nose bridge.

Please refer to FIG. 15, which is a preferred embodiment of the present invention. This embodiment differs from the previous embodiment in that the airtight sheet (20) is a detachable or composite nonwoven fabric adopting a three-layer or four-layer structure. , Composed of three layers of spunbond and meltblown and spunbonded nonwoven fabrics (Spunbond + Meltblown + Spunbond Nonwovens, SMS) or four layers of sheets (Spunbond + Meltblown + Meltblown + Spunbond Nonwovens, SMMS) for spunbond and meltblown Composite products. To filter out the dust, particles and dirty air from the sides of the mask. In addition, the airtight sheet (20) can also adopt a five-layer structure, that is, SMMS plus an antibacterial layer.

Please refer to FIG. 16, which is a preferred embodiment of the present invention. This embodiment differs from the previous embodiment in that the strap set (40) is located on the surface of the outer layer (11) and faces the inside of the mask body (10) Configuration (form inner ear hook), thereby increasing the convenience of mask packaging. Among them, adopting L-shaped upper and lower fixing areas (31, 33) to weld the lanyard (41), its characteristics are: when welding the two ends of the lanyard (41), you can avoid the end of the lanyard (41) The whole segment is welded.

Please refer to FIG. 17, which is a preferred embodiment of the present invention. This embodiment differs from the previous embodiment in that the strap set (40) is located on the inner layer (15) surface and faces the inside of the mask body (10) Orientation (form inner ear hook), thereby increasing the convenience of mask packaging.

Please refer to FIGS. 18-19, which is a preferred embodiment of the present invention. This embodiment differs from the previous embodiment in that the horizontal fold (16) of the mask body (10) has a zigzag section ( (Figure 19 is a cross-sectional view taken along line E-E in Figure 18). It can be applied to general masks with traditional wrinkle method.

Please refer to FIG. 20, which is a preferred embodiment of the present invention. This embodiment differs from the previous embodiment in that the airtight sheet (20) is a non-woven fabric with a single-layer structure, which may be spun-bonded non-woven Fabric (Spunbond Nonwovens), or Meltblown Nonwovens. To filter out the dust, particles and dirty air from the sides of the mask.

Please refer to FIG. 21, which is a preferred embodiment of the present invention. This embodiment differs from the previous embodiment in that the lanyard set (40) includes at least two straps (43), and each strap (43) ) Are fixed along the left side and the right side of the mask body (10) respectively, and both ends of the mask body (10) extend out of the outlet mask body (10). The length of the strap (43) may preferably be between 40 and 95 cm. When in use, the strap (43) can be tied to the head for fixing.

Please refer to FIG. 22, which is a preferred embodiment of the present invention. This embodiment differs from the previous embodiment in that the strap set (40) includes at least two straps (43), and each strap (43) ) Are respectively fixed along the upper side and the lower side of the mask body (10), and both ends of the mask body (10) extend out of the outlet mask body (10). The length of the strap (43) may preferably be between 40 and 95 cm. When in use, the strap (43) can be tied to the head for fixing.

It is worth noting that the airtight sheet (20) may also be provided with an activated carbon layer, which can absorb ozone and organic odors. Or airtight materials or adhesive films can be used to block dust, particles, and dirty air from the sides of the mask. The masks of the present invention can be general medical masks, surgical masks, dust masks, activated carbon masks, American-standard N95/N99/N100 series masks or European-standard FFP1/FFP2/FFP3 series masks, or even anti-haze masks A, B, Masks of grade C and D.

Referring to FIG. 24, a method for manufacturing an airtight protective mask provided by the present invention includes the following steps S101-S105:

Step S101: providing a mask body (10) with an inner layer (15);

Step S103: providing an airtight sheet (20), covering one side of the mask body (10) to form an adhesive part (23) on the surface of the inner layer (15); and

Step S105: Provide a lanyard set (40), which is welded to the mask body (10) and the adhesion part (23).

In this way, the coating and welding are formed at a time. Therefore, the invention has the effects of simple manufacturing process, simple structure and low production cost.

The invention can effectively prevent the inhalation of pollen, high-density dust, sand dust and smog pollution and other harmful substances, and effectively resists PM 2.5, which is an essential first choice for smog weather. It is also suitable for countermeasures such as cold, sneezing, flu, pollen, etc., as well as for preventing infections in offices, on the MRT, on the bus or in the hospital.

In summary, the present invention has the following effects compared with the prior art: the airtight sheet (20) is wrapped on one side of the mask body (10) and fixed on the outer layer (11) and the inner layer (15) once Forming, so the process and structure are simple, and the production cost is low.

In addition, the present invention also has other effects: the left and right sides of the mask, the bottom edge and the upper side and the face are closely attached to each other, which greatly improves the tightness of the mask. The double-folded Ω three-dimensional structure keeps the mask and the lips at a certain distance, and there is no obstruction when breathing, which can maintain a comfortable mouth and nose space and reduce feelings of stuffiness and discomfort. The soft ear lanyard makes the ears comfortable to wear, and the ears are not easy to feel pain and discomfort when worn for a long time.

The above are only the preferred and feasible embodiments of the present invention, and therefore do not limit the scope of the patent of the present invention. Any equivalent structural changes caused by the description and drawings of the present invention are equally included in the present invention. Within the scope of the rights, Chen Ming.

this invention (10): Mask body (11): outer layer (13): Middle level (15): inner layer (16): Horizontal wrinkles (17): longitudinal wrinkles (19): nose bridge (20): Airtight film (21): Fixed part (23): Sealing Department (30): fixed area group (31): Upper fixed area (33): Lower fixed area (40): Lanyard set (41): lanyard (43): Bandage (50): Upper airtight film (60): Lower airtight film (70): Exhalation valve (80): Inserted nose pad (81): Nose bridge (811): Iron wire (812): Plastic parts (83): Elastomer S101～S105: Procedure

Conventional technology (A3): Mask (A10): Mask body (A12): ear hook (A14): Crease (A22): Welding part (A30): Side strap (A32): Side block (A31): Side insulation tape (A17, A24): Grid sealing

FIG. 1 is a schematic front view of the airtight protective mask of the present invention. FIG. 2 is a schematic back view of FIG. 1. Fig. 3 is a cross-sectional view taken along line A-A of Fig. 2. Fig. 4 is a cross-sectional view taken along B-B of Fig. 2. FIG. 5 is a schematic diagram of a user wearing the present invention. 6 is a diagram of a preferred embodiment of the present invention (with upper airtight sheet). 7 is a diagram of a preferred embodiment of the present invention (with a lower airtight sheet). Figure 8 is a diagram of a preferred embodiment of the present invention (with upper and lower airtight sheets). 9 is a diagram of a preferred embodiment of the present invention (with longitudinal folds). FIG. 10 is a schematic back view of FIG. 9. Fig. 11 is a cross-sectional view taken along C-C in Fig. 10. Figure 12 is a diagram of a preferred embodiment of the present invention (with an exhalation valve). Fig. 13 is a diagram of a preferred embodiment of the present invention (with an embedded nose pad). Fig. 14 is a cross-sectional view taken along D-D in Fig. 13. 15 is a diagram of a preferred embodiment of the present invention (airtight multi-layer structure). Figure 16 is a diagram of a preferred embodiment of the present invention (forming an inner earloop). Figure 17 is a diagram of a preferred embodiment of the present invention (forming an inner earloop). Fig. 18 is a diagram of a preferred embodiment of the present invention (traditional wrinkling method). Figure 19 is a cross-sectional view taken along line E-E of Figure 18. 20 is a diagram of a preferred embodiment of the present invention (airtight sheet single-layer structure). Figure 21 is a diagram of a preferred embodiment of the present invention (the lanyards are left and right side straps). Figure 22 is a diagram of a preferred embodiment of the present invention (the lanyards are upper and lower side straps). Figure 23 is a perspective view of a conventional technical mask. Fig. 24 is a flow chart of the manufacturing method of the airtight protective mask of the present invention.

(10): Mask body

(15): inner layer

(16): Horizontal wrinkles

(20): Airtight film

(23): Sealing Department

(40): Lanyard set

(41): lanyard

Claims (10)

A gas-tight protective mask includes: a mask body, which is provided with at least one outer layer, a middle layer and an inner layer in sequence; at least two gas-tight sheets are respectively fixed on both sides of the mask body, and each of the gas-tight sheets includes There is a fixing part and a sealing part extending from the fixing part, the fixing part is wrapped on one side of the mask body and fixed on the outer layer and the inner layer, the sealing part corresponds to the inner layer Direction configuration; two fixed area groups, each of the fixed area groups connects the airtight sheet and the mask body, the fixed area group includes an upper fixed area and a lower fixed area, the upper and lower fixed areas correspond to The upper and lower ends of the adhesion part are welded to the mask body; and a lanyard set including two lanyards is connected to both sides of the mask body respectively. The airtight protective mask according to claim 1, wherein the airtight sheet has a single-layer or multi-layer structure. The airtight protective mask according to claim 2, wherein the wrinkle section of the mask body is Ω-shaped or zigzag-shaped. The airtight protective mask according to claim 3, wherein the lanyard set is located on the outer layer or the inner layer and is arranged toward the inside of the mask body. The airtight protective mask described in 2, 3 or 4 further includes an upper airtight piece fixedly connected to the upper side of the mask body. The airtight protective mask as described in claim 5 further includes an airtight piece fixedly attached to the lower side of the mask body. 2. The airtight protective mask as described in 2, 3 or 4, wherein the mask body is formed with two longitudinal folds. The gas-tight protective mask as described in claim 7 further includes an exhalation valve installed on the mask body. The airtight protective mask described in 2, 3 or 4 further includes an insertion type nose pad, which is arranged between the inner layer and the outer layer on the upper part of the mask body. A method for manufacturing a gas-tight protective mask includes the following steps: providing a mask body with an inner layer; providing at least one gas-tight sheet covering one side of the mask body to form a seal on the surface of the inner layer A joint part; and providing a hanging belt set, welded to the mask body and the adhesive part.

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