201233407 六、發明說明： 【發明所屬之技術領域^ 本發月β及在塵埃多的場所如工 業時用於防止吸入塵埃的防塵面罩等的面罩。進订作 【先前技術】 作為上述的現有面罩的一個例子，提出了 ==貼並覆蓋佩戴者的臉面(包括嘴的周邊案的.、 罩向的中間部更靠下側的部分）的方式在面 如，參照專或者接_^ 獻1、專利文獻2或專利文獻3)。 [現有技術文獻] 專利文獻1:曰本實開昭64-26049號公報 專利文獻2 :曰本特表2000-507461號公報 專利文獻3 :日本特開2008-49194號公報 *祕的現有面|具備用於使面罩主體緊貼在臉 、布（或者接臉料），因此料數量增乡，並 製造成本增加。 1且使 【發明内容】 本發明是為了消除上述的不良狀況而提出技術方案， =:ΙΓ，即’不使用接臉布(或者接臉部件)也能 夠，面罩主體緊貼並覆蓋佩戴者的臉面（包括嘴的周邊的、 比鼻子的上下方向的中間部更靠下側的部分）。 (1)本發明是—種面罩，具備面罩主體，該面罩主體 透過對多張不織布進行加壓加熱成型而在板狀的主體外周 323843 4 201233407 邊緣部的内側—體成型有朝向遠 的比上述主體外周邊緣部更厚且更柔方， ^的外周邊緣部比上述主體㈣邊緣部更向佩戴者側突〜、 (2)本發明在（1)所記載的面罩中， 述過遽部的相邊緣部的厚度相對於比上錢在於’使上 邊緣部更靠_的上述韻料厚度更厚柄慮部的外周 ⑶本發明在⑴或⑵所記载的 使與上述佩戴者的鼻子的上下方向的中間邻的、特:在於’ ί=Γ外周邊緣部的鼻肋對應外周邊緣部位= 述佩戴者的鼻子的巾_與鼻子的左 & 式’朝向佩戴者側鼓出。 肌膚接觸的方 ⑷本發明在⑴至⑶中任—項所記㈣面軍中，复 特徵在於’就上述職•言，厚度方向 : 者的外侧比靠近上述佩戴者的内側更硬。 迷佩戴 本發明的發明效果如下。 根據本發明的面罩，由於使與主體外周邊緣部 過渡部的外周邊緣部比主體外周邊緣部更向佩戴者側办、 出’因此過濾部的外周邊緣部發揮接臉布（或者接臉部 1 的功能’並且能夠使面罩主體緊貼並覆蓋佩戴者的臉 從而’能夠減少㈣的部件數量，並且能夠減少廷 括嘴的周邊的、比鼻子的上下方向的中間部更靠下铡的： 分）0 323843 5 201233407 的製造成本。 【實施方式】 第1圖是本發明的表示面罩的一個實施例的背面圖 (後視圖），帛2圖是本發明（第！圖所示）的表示面罩的一 個實施例的背面侧立體圖，帛3圖是第i圖的a_a線的剖 視圖，第4圖是第1圖的B_B線的局部剖視圖，第5圖是 第1圖的C-C、線的局部剖視圖’第6圖是第i圖的"線 的局部剖視圖’第7圖是第丨圖的E_E線的局部剖視圖， 第8圖是第丨_ F_F_局部剖視圖，帛9圖是第^圖 的G-G線的局部剖視圖。 上下是從佩戴者觀察 此外，以下說明的前後、左右、 的前後、左右、上下。 而且，標記在第3圖至第9圖中的厚度等的單位是刪。 如第1圖或第2圖所示，本發明的一個實施例的面罩 1具備：立_狀型的面罩域21;以及安裝於該面罩主 體21的左右端部的上、下侧掛繩31υ、“ο。 上述的面罩主體21透過對多張、例如五張不織布進行 ，加熱成型’從而使環繞的板狀的主體外周邊緣部Μ、 主體外周邊緣部23的⑽朝向遠離佩戴者臉面的 迅、=突:)的比主體外周邊緣部23更厚且更柔軟的 過濾部25 —體成型。 型該面罩主體U的五張不織布相對於佩戴者從外 。内侧依-人為.用於除去從佩戴者遠離的表面（外表面 、毛，並且使手感良好的聚丙稀不織布（第一不織布），· 323843 6 201233407 用於成型面罩的形狀 二醇酯不織布（第二具有（賦予）強度的聚對苯二甲酸乙 不織布（第三不織布）哉布），發揮過濾器的功能的聚丙烯 強度的聚對苯二甲醆，用於成型面罩的形狀且具有（賦予） 用於使佩戴者的臉面乙―醇酯不織布（第四不織布）；以及 不織布（第五不織布）的觸感良好的聚對苯二甲酸乙二醇醋 而且，各不織布 三不織布的單位面:了—達到所期望的目❺，例如，使第 織布的單位面積量，惠（母lm2的質量（重量））大於第-不 不織布的單位面積量使第五不織布的單位面積量大於第三 面積量大於第五;’使第二不織布及第四不織布的單位 上述的主織布的單位面積量。 括口的周邊的、比^邊緣°卩23做成覆蓋佩戴者的臉面（包 部分）的立體形狀，=的上下方向的比中間部更靠下側的 戴者遠離的山㈣^、佩戴者的鼻子對應的部分設有從佩 竽小的凹口（凹部）23n。 的寬=寬使主體外周邊緣部23的左右端在上下方向上 部分寬的主體外周邊緣部23的左右端的上側 體外周2= 的左右端部’並且在寬度較寬的主201233407 VI. Description of the invention: [Technical field to which the invention pertains] A mask for the present invention, such as a dust mask for preventing dust from being inhaled in a place where there is a lot of dust, such as a factory. [Previously] As an example of the above-described conventional mask, it is proposed that the == sticker covers the face of the wearer (including the portion of the peripheral portion of the mouth, and the portion of the middle portion of the cover toward the lower side) For example, refer to the exclusive or doc, patent document 2 or patent document 3). [PRIOR ART DOCUMENT] Patent Document 1: Japanese Patent Application Laid-Open No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. It is used to make the mask body close to the face and cloth (or the face material), so the amount of material is increased, and the manufacturing cost is increased. 1 and the present invention provides a technical solution for eliminating the above-mentioned disadvantages, =: ΙΓ, that is, 'not using a face cloth (or a face member), the mask body can be closely attached to and cover the wearer. The face (including the portion of the periphery of the mouth that is lower than the middle portion of the nose in the up-and-down direction). (1) The present invention is a mask having a mask main body that is formed by moving a plurality of non-woven fabrics by press-heating, and is formed on the inner side of the outer periphery of the plate-shaped main body 323843 4 201233407. The outer peripheral edge portion of the main body is thicker and more flexible, and the outer peripheral edge portion of the main body edge portion protrudes toward the wearer from the edge portion of the main body (four). (2) In the mask described in (1) of the present invention, the crotch portion is described. The thickness of the edge portion is larger than the outer circumference of the handle portion which is thicker than the thickness of the upper portion of the upper edge portion. (3) The present invention is described in (1) or (2) and the nose of the wearer described above. In the middle direction of the up-and-down direction, the nose rib corresponding to the outer peripheral edge portion of the outer peripheral edge portion = the towel of the wearer's nose _ and the left & style of the nose bulge toward the wearer side. Skin contact (4) In the present invention, in (4) to (3), in (4), in the army, the feature is that 'the above-mentioned position, the thickness direction: the outer side of the person is harder than the inner side of the wearer. The effect of the invention of the present invention is as follows. According to the mask of the present invention, the outer peripheral edge portion of the transition portion of the outer peripheral edge portion of the main body is made closer to the wearer side than the outer peripheral edge portion of the main body. Therefore, the outer peripheral edge portion of the filter portion functions as a face cloth (or the face portion 1) The function 'can also make the mask body close to and cover the wearer's face so that the number of parts can be reduced (4), and the circumference of the mouth of the mouth can be reduced, which is lower than the middle portion of the nose in the up and down direction: ) 0 323843 5 201233407 manufacturing costs. [Embodiment] FIG. 1 is a rear view (rear view) showing an embodiment of a mask according to the present invention, and FIG. 2 is a rear side perspective view showing an embodiment of a mask according to the present invention (shown in FIG. 3 is a cross-sectional view taken along line a_a of the i-th diagram, FIG. 4 is a partial cross-sectional view taken along line B_B of FIG. 1, and FIG. 5 is a partial cross-sectional view of CC and line of FIG. 1 and FIG. 6 is an i-th view of FIG. <Partial sectional view of line 'Fig. 7 is a partial cross-sectional view of the E_E line of the second figure, Fig. 8 is a partial cross-sectional view of the 丨_F_F_, and Fig. 9 is a partial cross-sectional view of the GG line of the second figure. The upper and lower sides are observed from the wearer. In addition, the front, back, left and right, front and rear, left and right, and up and down are described below. Further, the unit of the thickness or the like marked in the third to ninth drawings is deleted. As shown in Fig. 1 or Fig. 2, a mask 1 according to an embodiment of the present invention includes a face-type mask field 21; and upper and lower lanyards 31 attached to left and right end portions of the mask body 21. "Oh. The mask main body 21 described above is formed by heat-molding a plurality of sheets, for example, five sheets of non-woven fabric, so that the outer peripheral edge portion 环绕 of the surrounding plate-shaped body and the (10) of the outer peripheral edge portion 23 of the main body are directed away from the wearer's face. The filter portion 25 is thicker and softer than the outer peripheral edge portion 23 of the main body. The five non-woven fabrics of the mask main body U are externally opposed to the wearer. A surface of the wearer that is away from the surface (outer surface, hair, and a polypropylene fabric that is hand-feeling (first non-woven fabric), 323843 6 201233407 diol ester nonwoven fabric for forming a mask (second pair of (giving) strength pairs Ethylene phthalate non-woven fabric (third non-woven fabric), a polypropylene-strength polyethylene terephthalate that functions as a filter for shaping the shape of the mask and having (giving) a face for the wearer "Alcohol ester non-woven fabric (fourth non-woven fabric); and non-woven fabric (fifth non-woven fabric) with good touch of polyethylene terephthalate and a non-woven three non-woven fabric unit surface: - to achieve the desired goal, For example, the unit area amount of the first woven fabric, the mass (weight (weight) of the mother lm2) is larger than the unit area of the first non-woven fabric, so that the unit area of the fifth nonwoven fabric is larger than the third area by more than the fifth; The unit area of the main woven fabric of the second non-woven fabric and the fourth non-woven fabric. The circumference of the mouth is made to cover the wearer's face (package part) in a three-dimensional shape. The lower side of the wearer is lower than the intermediate portion (four), and the portion corresponding to the nose of the wearer is provided with a small recess (recess) 23n from the top. The width = width is the left and right ends of the outer peripheral edge portion 23 of the main body. The left and right outer ends of the left and right outer circumferences of the left and right ends of the main outer peripheral edge portion 23 that are partially wide in the up-and-down direction are the left and right end portions of the width 2 and are wider in the width
的左2端部^ 的左右端的下侧部分熔接下侧掛繩31D 上述的過濾部25由環繞在主體外周邊緣部23並與之 觸的外周邊緣部25〇和比該外周邊緣部25〇更靠内伯 内侧邱磁 入非Μ側的 =1 構成’並且在佩戴者側的内表面在左右方向上 323843 7 201233407 平行地設有加強料部25並朝向遠離佩戴者的方向（前侧） 突出的多個縱槽25d。 而且’外周邊緣部25〇比主體外周邊緣部23更向佩 戴者側突出（更詳細地講，例如，如第3圖至第9圖所示， 外周邊緣部25〇比主體外周邊緣部23所形成的佩戴者侧的 面更向佩戴者側突出）。 如第3圖或第6圖所示’該外周邊緣部25〇以1.3mm 至31mm#寬度(佩戴者的前後方向的長度)環繞，如第3 圖至第9圖所示’該外周邊緣部25。相對於（比起）内側部 =更厚（厚度厚）0.lmm至3.2丽、最好更厚〇 5麵至 3·Omm 〇 的外財“ 的上下方向的中間部左右對應 位=福。的左、右侧鼻肋(鼻脅)對應外 方:=者的鼻子的中間部與鼻子的左右 第9圖所-= 佩戴者侧鼓出’並且其厚度為比 不的厚度更厚的第3圖至第8圖所示的厚度。 ，過濾部25成型為厚度方向的遠 側比靠近佩戴者_彳収硬。 賴戴者的外 上述的上、下側掛繩31u、31D， 聚醋可伸縮地構成，^左右的端雜==氣酿和 部23的左右端上。 觸丨㈣在主體外周邊緣 .第10圖表示成型第1圖及第2圖所 =要部分的說明圖，並且是將第1圖的上下主方體二 、。刀與左右方向對應的剖視圖。 σ的 323843 201233407 此外，實線所示的部分與成型現有的面罩主體的模具 對應，雙點劃線所示的部分是為了成型本發明的面罩主體 而加在模具上的加工部分。 在第10圖中，D表示下模具（陽模具），U表示上模具 (陰模具）。 就上述的下模具D而言，在中央部設有用於成型面罩 主體的凹部（鼓出部）的突出部〇,在該突出部〇的上表面 平行地設有多個用於成型面罩主體的縱槽的突條p。 而且，在下模具D的突出部〇的外側部分，為了使過 濾部的外周邊緣部向佩戴者側突出（鼓出），設有環繞的外 周邊緣部成型槽d。 就上述的上模具U而言，在與下模具D之間設有形成 規定的間隔的成型空間S的凹部c。 其次，對成型面罩主體21的一個例子進行說明。 首先，將下模具D例如加熱至110°C，將上模具U例 如加熱至120°C。 在這種狀態下，將層叠了上述的五張不織布的待成型 體以第一不織布為上側、以第五不織布為下側插入下模具 D與上模具U之間，使上模具U下降重合在下模具D上， 在由上、下模具U、D例如夾住五張不織布五秒鐘後，使上 模具U上升並從下模具D上與不織布一同取出已成型的面 罩主體。 而且，從不織布切斷面罩主體而切開分離。 這樣，若使上模具U的溫度高於下模具D的溫度而成 9 323843 201233407 型，則第一及第二不織布侧的熱收縮大於第五不織布側的 熱收縮，第五不織布側的熱收縮小於第一及第二不織布側 的熱收縮。由此，與面罩主體的主體外周邊緣部相接的過 濾部的外周邊緣部比主體外周邊緣部更向佩戴者側突出， 並且過濾部的外周邊緣部的厚度相對於比過濾部的外周邊 緣部更靠内側的内側部的厚度更厚，就過濾部而言，厚度 方向的遠離佩戴者的外側比靠近佩戴者的内側更厚，從而 能夠得到本發明所期望的面罩主體。 對本發明的一個實施例的面罩、現有的杯型面罩（無 接臉布）、與現有的杯型面罩（帶接臉布）的與臉面的緊密性 (洩漏率）的測定，由以下的方法進行測定。 此外，杯型面罩是具有在將主體外周邊緣部放置于水 平面上時主體外周邊緣部與水平面之間沒有間隙的平坦的 形狀的主體外周邊緣部的面罩，接臉布是利用熔接等將外 周邊緣部沿面罩主體的主體外周邊緣進行安裝的、具有環 狀的寬度的部件。 將各面罩佩戴於臉面上，利用柴田科學株式会社製的 勞研式面罩裝配試驗（労研式Y7 4 v于4 y /于只 夕一）來對面罩主體與臉面的緊密性（洩漏率）進行測定。 該面罩主體的緊密性（洩漏率）的測定是對從臉面與 面罩主體的間隙進入的室内粉塵粒子數量進行測定，並由 面罩主體的外側的粒子數量除以進入面罩主體内的粒子數 量來作為泡漏率。 就上述的面罩主體的緊密性（洩漏率）的15人的測定 10 323843 201233407 施例的面罩為3. 2%，現有 ’現有的杯型面罩（帶接臉 結果平均而言，本發明的一個實 的杯型面罩（無接臉布）為14.7% , 布）為 9.1%。 緊二，二斷本發明的一個實施例的面罩在面罩主體的 緊被性（洩/属率）上優良的事實。 々k田t上所述，根據本發明的—個實施例，由於使盘主體 ==，過渡部25的外周邊緣部二 =邊緣核更向佩戴者侧突出，因此過滤部25的外周 ，、部25〇發揮接臉布（或者接臉部件）的功能 ，能夠使面 罩主體21緊貼並覆蓋佩戴者的臉面（包括嘴的周邊的、比 鼻子的上下方向的中間部更靠下侧的部分)。 從而’能夠減少面罩11的部件數量，並且能夠減少 面罩11的製造成本。 另外，由於使過濾部25的外周邊緣部25〇的厚度相 對於比减部25的外周邊緣部25。更#關的過渡部25 (内側部25ι)的厚度更厚，因此能夠進一步使佩戴面罩u 時的面罩主體21(過濾部25)的觸感良好。 另外’使與佩戴者的鼻子的上下方向的中間部的左右 對應的過濾部25的外周邊緣部25〇的左、右側鼻肋對應外 周邊緣部位25nl、25nr，以從佩戴者的鼻子的中間部與鼻 子的左右的肌膚接觸的方式，向佩戴者側鼓出，因此能夠 不使用鼻夾而改善從佩戴者的鼻子的中間部左右的洩漏 率，並且能夠提高佩戴感。 另外，由於過濾部25的厚度方向的遠離佩戴者的外 11 323843 201233407 側比靠近佩戴者的内側更硬，因此不會使面罩主體21的形 狀變形，能夠使面罩主體21(過濾部25)的觸感良好。 在上述的實施例中，雖然對加壓加熱成塑的不織布的 張數為五張的情況進行了說明，但是至少由成蜇面罩形狀 的第二不織布和發揮過濾器功能的第三不織布來成型面罩 主體，或者由成型面罩形狀的第二不織布、發揮過濾、器功 能的第三不織布以及成型面罩形狀的第四不織布成型面罩 主體也可以。 另外，也可以是在面罩主體上設置控制吸氣和排氣的 閥的面罩。 另外’雖然對在主體外周邊緣部的左右端的上側部分 熔接上側掛繩的左右端部且在主體外周邊緣部的左右端的 下侧部分炼接下側掛繩的左右端部的懸掛型（類型）面罩進 行了說明，但是也可以是在主體外周邊緣部的一端（例如， 左端）侧的上側部分熔接掛繩（例如，左側掛繩）的一端部 (例如，上端部），且在主體外周邊緣部的一端側（左端）的 下側部分熔接掛繩（左侧掛繩）的另一端部（下端部），並在 主體外周邊緣部的另一端（右端）侧也同樣地炼接掛繩（右 側掛繩）的耳掛型（類型）面罩。 另外，雖然對面罩以立體形狀型進行了說明，但是也 能夠適用於杯型等的面罩。 【圖式簡單說明】 第1圖是本發明的表示面罩的一個實施例的背面圖 (後視圖）。 323843 12 201233407 圖所示）的表示面罩的一個實施 第2圖是本發明（第1 例的背面侧立體圖。 第3圖是第1圖的A_A線的剖視圖。 第4圖是第1圖的B_B線的局部剖視圖。 第5圖是第1圖的c_c線的局部剖視圖。 第6圖是第1圖的D_D線的局部剖視圖。 第7圖疋第1圖的e-e線的局部剖視圖。 第8圖是第1圖的f—f線的局部剖視圖。 第9圖是第1圖的g-G線的局部剖視圖。 第10圖表示成型第1圖及第2圖所示的面罩主體的 模具的主要部分的說明圖。 【主要元件符號說明】 11 面罩 21 面罩主體 23 主體外周邊緣部 23η 凹口 25 過濾部 25〇 外周邊緣部 25nl 左側鼻肋對應外周邊緣部位 25nr 右側鼻肋對應外周邊緣部位 25i 内侧部 25d 縱槽 31U 上側掛繩 31D 下側掛繩 13 323843The lower side portion of the left and right end portions of the left end portion ^ is welded to the lower side lanyard 31D. The above-described filter portion 25 is surrounded by the outer peripheral edge portion 25 环绕 that surrounds the outer peripheral edge portion 23 of the main body and is more than the outer peripheral edge portion 25 Between the inner side of the inner and the inner side of the inner side of the inner side of the inner side of the wearer's side, and the inner surface of the wearer's side is 323843 7 201233407 in the left and right direction, the reinforcing material portion 25 is provided in parallel and protrudes away from the wearer (front side). A plurality of longitudinal grooves 25d. Further, the 'outer peripheral edge portion 25' protrudes toward the wearer side than the main body peripheral edge portion 23 (in more detail, for example, as shown in FIGS. 3 to 9 , the outer peripheral edge portion 25 〇 is larger than the main body peripheral edge portion 23 The formed side of the wearer side protrudes more toward the wearer side). As shown in FIG. 3 or FIG. 6 'the outer peripheral edge portion 25 环绕 is surrounded by a width of 1.3 mm to 31 mm # (length of the wearer's front-rear direction) as shown in FIGS. 3 to 9 'the peripheral edge portion 25. It is relative to (in comparison with) the inner portion = thicker (thickness) 0. lmm to 3.2 liters, preferably thicker 〇 5 faces to 3 · Omm 〇. The left and right nasal ribs (nose flank) correspond to the outer side: the middle part of the nose of the person and the left and right sides of the nose - the wearer side bulges 'and the thickness is thicker than the thickness of the 3 to the thickness shown in Fig. 8. The filter portion 25 is formed so that the distal side in the thickness direction is closer to the wearer than the wearer. The above-mentioned upper and lower lanyards 31u, 31D of the wearer are vinegar. Relattable, the left and right end miscellaneous == the left and right ends of the gas brewing and the portion 23. The touch (4) is on the outer peripheral edge of the main body. Fig. 10 is an explanatory view showing the first part and the second figure. In addition, the upper and lower main body 2 of the first figure is a cross-sectional view corresponding to the left and right direction. σ 323843 201233407 In addition, the portion indicated by the solid line corresponds to the mold for molding the conventional mask body, and the double-dashed line indicates The portion is the machined portion that is applied to the mold to form the mask body of the present invention. In Fig. 10, D indicates the lower portion. The upper mold D is provided with a protruding portion 用于 for forming a concave portion (bulging portion) of the mask main body at the center portion, and the protruding portion 在The upper surface is provided in parallel with a plurality of ridges p for molding the longitudinal grooves of the mask body. Further, in the outer portion of the protruding portion 下 of the lower mold D, in order to protrude the outer peripheral edge portion of the filter portion toward the wearer side (drum The outer peripheral edge portion forming groove d is provided. The upper mold U is provided with a concave portion c forming a molding space S at a predetermined interval from the lower mold D. Next, the molding mask main body is formed. An example of 21 is described. First, the lower mold D is heated to, for example, 110 ° C, and the upper mold U is heated, for example, to 120 ° C. In this state, the above-mentioned five nonwoven fabrics to be molded are laminated. The first non-woven fabric is the upper side, and the fifth non-woven fabric is inserted between the lower mold D and the upper mold U, so that the upper mold U is lowered and overlapped on the lower mold D, and five non-woven fabrics are sandwiched by the upper and lower molds U and D, for example. After five seconds, make the upper mold U Lifting and taking out the formed mask body from the lower mold D together with the non-woven fabric. Further, the mask body is cut from the nonwoven fabric and cut and separated. Thus, if the temperature of the upper mold U is higher than the temperature of the lower mold D, 9 323843 201233407 The heat shrinkage on the first and second nonwoven fabric sides is greater than the heat shrinkage on the fifth nonwoven fabric side, and the heat shrinkage on the fifth nonwoven fabric side is smaller than the heat shrinkage on the first and second nonwoven fabric sides. The outer peripheral edge portion of the filter portion that is in contact with the outer peripheral edge portion protrudes toward the wearer side more than the outer peripheral edge portion of the main body, and the thickness of the outer peripheral edge portion of the filter portion is thicker than the inner portion of the outer peripheral edge portion of the filter portion. Further, in the filter portion, the outer side in the thickness direction away from the wearer is thicker than the inner side near the wearer, and the mask main body desired in the present invention can be obtained. The following method is used to measure the tightness (leakage rate) of the face mask of the embodiment of the present invention, the conventional cup type mask (without the face cloth), and the conventional cup type mask (with the face cloth) The measurement was carried out. Further, the cup type mask is a mask having a flat outer peripheral edge portion of a main body having no gap between the outer peripheral edge portion and the horizontal surface when the outer peripheral edge portion of the main body is placed on the horizontal surface, and the face cloth is a peripheral edge by welding or the like. A member having an annular width mounted along an outer peripheral edge of the main body of the mask body. The face mask and the face are tightly closed (leakage rate) by using the face-to-face mask assembly test (the 労 research type Y7 4 v at 4 y / on the eve of the day) by the Shibata Scientific Co., Ltd. The measurement was carried out. The measurement of the tightness (leakage rate) of the mask main body is performed by measuring the number of indoor dust particles entering from the gap between the face and the mask main body, and dividing the number of particles on the outer side of the mask main body by the number of particles entering the mask main body. Bubble leakage rate. The mask of the above-mentioned mask body (leakage rate) of 15 people is 10 323843 201233407 The mask of the embodiment is 3.2%, the existing 'existing cup type mask (with the result of the face, on average, one of the present invention) The actual cup-type mask (without the face cloth) was 14.7%, and the cloth was 9.1%. Tightly, the fact that the mask of one embodiment of the present invention is excellent in the tightness (emission/proportion) of the mask body is obtained. According to an embodiment of the present invention, since the disk main body ==, the outer peripheral edge portion 2 of the transition portion 25 protrudes toward the wearer side, the outer periphery of the filter portion 25, The portion 25 〇 functions as a face cloth (or a face member), and the mask body 21 can be brought into close contact with the wearer's face (including the periphery of the mouth, which is lower than the middle portion of the nose in the vertical direction) section). Thereby, the number of components of the mask 11 can be reduced, and the manufacturing cost of the mask 11 can be reduced. Further, the thickness of the outer peripheral edge portion 25A of the filter portion 25 is made larger than the outer peripheral edge portion 25 of the subtracting portion 25. Further, since the thickness of the transition portion 25 (inner portion 25i) is larger, the touch panel main body 21 (filter portion 25) when the mask u is worn can be further improved in feel. Further, the left and right nasal ribs of the outer peripheral edge portion 25 of the filter portion 25 corresponding to the left and right of the middle portion of the wearer's nose in the vertical direction correspond to the outer peripheral edge portions 25n1 and 25nr so as to be from the middle portion of the wearer's nose. Since the contact with the left and right skin of the nose bulges toward the wearer's side, it is possible to improve the leak rate from the middle portion of the wearer's nose without using the nose clip, and to improve the wearing feeling. Further, since the outer side of the filter portion 25 in the thickness direction away from the wearer is more rigid than the inner side of the wearer, the shape of the mask main body 21 is not deformed, and the mask main body 21 (filter portion 25) can be made. Good touch. In the above-described embodiment, the case where the number of sheets of the pressure-heat-formed nonwoven fabric is five sheets has been described, but at least the second nonwoven fabric in the shape of a mask is formed and the third nonwoven fabric which functions as a filter is molded. The mask main body may be a second non-woven fabric in the shape of a molding mask, a third non-woven fabric that functions as a filter and a device, and a fourth non-woven fabric mask main body in the shape of a molding mask. Further, a mask for providing a valve for controlling intake and exhaust may be provided on the mask body. In addition, the left and right end portions of the upper lanyard are welded to the upper and lower ends of the left and right ends of the outer peripheral edge portion of the main body, and the left and right end portions of the lower lanyard are welded to the lower portion of the left and right ends of the outer peripheral edge portion of the main body. Although the mask has been described, it is also possible to weld one end portion (for example, the upper end portion) of the lanyard (for example, the left lanyard) to the upper side portion on the one end (for example, the left end) side of the outer peripheral edge portion of the main body, and at the outer peripheral edge of the main body. The lower end portion of the one end side (left end) of the portion is welded to the other end portion (lower end portion) of the lanyard (left lanyard), and the lanyard is similarly welded on the other end (right end) side of the outer peripheral edge portion of the main body ( Ear-hook type (type) mask on the right side lanyard. Further, although the mask has been described as a three-dimensional shape, it can be applied to a mask such as a cup type. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a rear view (rear view) showing an embodiment of a mask of the present invention. 323843 12 201233407 shows an embodiment of the mask. Fig. 2 is a perspective view of the back side of the first example. Fig. 3 is a cross-sectional view taken along line A_A of Fig. 1. Fig. 4 is a B_B of Fig. 1 Fig. 5 is a partial cross-sectional view taken along line c_c of Fig. 1. Fig. 6 is a partial cross-sectional view taken along line D_D of Fig. 1. Fig. 7 is a partial cross-sectional view of the ee line of Fig. 1 Fig. 9 is a partial cross-sectional view of the gG line of Fig. 1. Fig. 10 is a view showing a main part of a mold for molding the mask body shown in Fig. 1 and Fig. 2; [Description of main components] 11 Mask 21 Mask main body 23 Main body peripheral edge portion 23n Notch 25 Filter portion 25〇 Peripheral edge portion 25nl Left nasal rib corresponding to peripheral edge portion 25nr Right nasal rib corresponding to peripheral edge portion 25i Inner portion 25d Longitudinal groove 31U upper side lanyard 31D lower side lanyard 13 323843