200934546 九、發明說明 【發明所屬之技術領域】 本發明是關於戴在人的臉的口罩。 【先前技術】 曰本特開平7-2 753 84號公報揭示有一種覆蓋戴用者 的口鼻的口罩、尤其是揭示一種立體口罩。該立體口罩是 ❹ 由：口罩本體部（mask body):左側耳掛部（left side ear hook part);及右側耳掛部（right side ear hook part )所構成。而且，口罩本體部是構成：口罩折疊時呈平面 狀’ 口罩戴用時呈立體狀的形狀。藉此，會在口罩本體部 與戴用者的口之間形成有嘴邊空間，所以，可消除窒息等 的不舒適感。 【發明內容】 ® 〔發明所欲解決之課題〕 然而，設計、開發這種口罩之際，良好地貼合在戴用 者的臉（貼合性）是重要的。 本發明是有鑑於這點所發明的，目的在提供連良好貼 合在戴用者臉的口罩。 〔解決課題用的手段〕 爲達成上記課題，構成有記載於各請求項的發明。 本發明爲戴在戴用者的臉的口罩，至少具備有：口罩 -5- 200934546 本體部、左側耳掛部及右側耳掛部。本發明的口罩，可設 想爲單次或複數次使用的用後即棄型的口覃、或也可爲藉 由洗滌可重複使用的種類。 口罩本體部覆蓋戴用者的口鼻。口罩本體部是構成以 平面狀態戴著、或以立體狀態戴著。理想的是構成至少在 戴用時會形成立體狀。 口罩本體部是藉由將1片薄片部（薄片）部分接合的 Φ 方式所形成、或是藉由接合複数片薄片部（薄片）的全部 或一部分的方式所形成。形成口罩本體部的薄片部，一般 來說是藉由機械處理、化學處理、熱処理的方式固接纖維 或藉由父織的方式製造而成。典型的是藉由含有一部分熱 溶融性纖維（熱可塑性纖維）之可融接（熔接）的不織布 所構成。 左側耳掛部及右側耳掛部具有：可掛在戴用者的左耳 及右耳的左側耳掛孔及右側耳掛孔，且是從口罩本體部的 〇 左側及右側延伸出。左側耳掛部及右側耳掛部也可與口罩 本體部爲不同體’也可與口罩本體部呈一體。 而且’本發明中’在左側耳掛部及右側耳掛部貫穿形 成有複數個孔（開口）。孔可使用剖面形狀爲橢圓系形狀 、菱形形狀、多角形形狀、圓形形狀等各種的孔。又，孔 的緣部的至少一部分的纖維密度是構成比其他地方的纖維 密度高。這種構成典型的是在藉由噴水（water jet)(高 壓水流（high pressure water ))或蒸汽噴流（steam jet ) 等的流體射流（fluid jet)，形成孔之際，將不織布的纖 200934546 維推開到流體射流的周囲（孔的緣部）的方式所獲得。此 時’孔的緣部之中的一部分的纖維密度也可比該孔的緣部 的其他地方的纖維密度構成的高，且孔的緣部之中的一部 分的纖維密度也可比該孔的緣部以外的地方的纖維密度構 成的高。 本發明中，爲了將左側耳掛部及右側耳掛部掛在左耳 及右耳’將左側耳掛部及右側耳掛部朝左右拉引時會形成 φ 孔’且左側耳掛部及右側耳掛部會朝拉引的方向延伸。據 此’可抑制施加在左耳及右耳的力量的增加，戴用者不易 感覺到耳朵的疼痛。再者，由於提昇了孔的緣部的至少一 部分的纖維密度，所以該處的彈性力（elastic f〇rce )( 恢復力（recover f0rce ))增加。據此，左側耳掛部及右 側耳掛部可容易從伸長狀態恢復到原來的位置。因此，即 使重複戴用口罩時，因爲可防止左側耳掛部或右側耳掛部 成爲伸長著的狀態，所以可提昇耐久性。 Ο 本發明的其他形態中，複數個孔包含具有長度不同的 兩軸（長軸（long axis)與短軸（short axis))的孔。而 且’具有長度不同的兩軸的孔會形成長軸與口罩本體部和 左側耳掛部之間的左側邊界線或口罩本體部和右側耳掛部 之間的右側邊界線成爲平行。這裡「平行」並不僅長軸與 邊界線爲完全平行狀態的態樣還包含略平行狀態的態樣。 又’將複數個孔的全部或一部分（適宜的是全部）設定成 具有長度不同的兩軸的孔。又，具有長度不同的兩軸的孔 至少具有長度不同的兩軸即可。典型的是可使用剖面橢圓 200934546 形形狀的孔。 據此’將左側耳掛部及右側耳掛部朝左右拉引時，孔 容易因拉引方向而變形。且’左側耳掛部及右側耳掛部的 彈性力（恢復力）也會增加。因此，更提昇了舒適性及耐 久性。 本發明的另一其他形態中’孔是藉由朝不織布噴射噴 水水流或蒸汽噴流的方式所形成。 φ 據此’藉由對左側耳掛部及右側耳掛部噴射噴水水流 或蒸汽噴流的方式，由於可提高孔的緣部的至少一部分的 纖維密度’所以可形成孔。噴水水流的壓力或蒸汽噴流的 壓力可適當選擇。 〔發明的效果〕 藉由使用本發明，可對戴用者提供良好貼合的口罩。 〇 【實施方式】 〔實施發明用的最佳形態〕 以下，一面參閱圖面一面就本發明的一實施形態的口 罩1的構成進行說明。此外，本實施形態的口罩1是設想 爲單次或複數次使用的用後即棄型口罩（disposable mask )。口罩1可作爲對花粉（pollen)或感冒病毒（common cold virus)等具有屏障功能（barrier function)的口罩或 具有改善嘴邊空間內的環境功能的口罩來使用。又，口罩 1典型上是包括幼兒、小學生、中學生的兒童或臉小的大 _ 8 - 200934546 人等適合使用，但藉由加大口罩1的形狀，則一般的大人 等也可使用。 圖1及圖2表示本實施形態的口罩1的整體構成。此 外，圖1中，表示折疊口罩1的狀態（口罩折疊時）從側 面觀看的圖。又，圖2中，表示展開口罩1的狀態（口罩 展開時），從戴用者側觀看的圖。如圖1及圖2所示，本 實施形態的口罩1是由口罩本體部（mask body ) 2與耳掛 部（ear hook part) 3 所構成。 (口罩本體部2) 口罩本體部2是覆蓋戴用者的至少嘴巴’理想的是覆 蓋口鼻的構件，且是形成杯形狀（cup shape ) 。口罩本體 部2也可稱爲「杯部（cup-shaped part)」或「罩口部（ mouth cover part )」 〇 本實施形態中，口罩本體部2是由覆蓋戴用者的左臉 6 (left side of a face )的左側薄片部2a、與覆蓋戴用者的 右臉（right side of a face)右側薄片部2b所構成。左側 薄片部2a與右側薄片部2b是在緣部（edge portion) 2c 的地方藉由熱熔接被接合。據此，口罩本體部2是以緣部 2c作爲邊界分爲左右。左側薄片部2a及右側薄片部2b的 形狀（尤其是緣部2c的形狀）是被設計成在緣部2c的地 方被接合的狀態下，左側薄片部2a與右側薄片部2b被分 開時（展開時）’在口罩本體部2的戴用者側形成凹陷。 本實施形態中，左側薄片部2a及右側薄片部2b具有相同 -9- 200934546 的形狀。且，緣部2c是朝戴用者的上下方向呈曲線狀延 伸。 據此，於重疊左側薄片部2a與右側薄片部2b的口罩 折疊時（「口罩收納時」或「口罩未使用時」）’ 口罩本 體部2是如圖1所示呈平面狀。另一方面，於分開左側薄 片部2a與右側薄片部2b的口罩展開時（「口罩戴用時」 )，口罩本體部2是如圖2所示呈立體狀。此外，口罩本 φ 體部2至少在口罩戴用時呈立體狀即可。例如也可在口罩 戴用時及不戴口罩時呈立體狀。 且至少具備有在口罩戴用時呈立體狀的口罩本體部2 的口罩1可稱爲「立體口罩」或「三次元口罩」。 本實施形態中，口罩本體部2，亦即左側薄片部2a及 右側薄片部2b是由熱可塑性合成纖維所構成的不織布所 形成。作爲此熱可塑性纖維可適度使用使用聚乙烯（ polyethylene )、聚丙嫌（polypropylene )、聚對苯二甲 ^ 酸乙二醇酯（polyethylene terephthalate )等，以氣流法 (air through method )、紡黏法(spun bond method )、 熱黏合法（thermal bond method )、射流噴網法（spun lace method )、點式黏合法(point bond method )、熔噴 法（melt blow method)、縫編法（stitch bond method) 、化學結合法（chemical bond method)、針扎法（needle punch method)等製造成基重（density) 30 〜150〔 g/m2 〕的纖維。不織布是使用具花粉.飛沫病毒的捕集性並且 具透氣性（breathability )且肌膚觸感佳（S0ft and -10 - 200934546 confortable)的不織布爲理想。且理想的是使用具有較耳 掛部3低伸縮性（elasticity )的不織布，容易保持〇罩戴 用時的立體構造。 (耳掛部3 ) 耳掛部3具有設在口罩本體部2的左右兩側的左側耳 掛部3a及右側耳掛部3b。本實施形態中，左側耳掛部3a φ 是從口罩本體部2的左側薄片部2a的端部（與緣部2C相 反側）延伸出’右側耳掛部3 b是從口罩本體部2的右側 薄片部2 b的端部延伸出。又，左側耳掛部3 a是形成具有 可掛在戴用者的左耳的左側耳掛孔（開口）5 a的環狀（ nng-shape)，右側耳掛部3b是形成有可掛在戴用者的右 耳的右側耳掛孔（開口）5b的環狀。左側耳掛孔5a及右 側耳掛孔5b是朝向與口罩丨的上下方向（圖丨中的上下 方向）交叉的方向延伸。 ® 口罩戴用時，以口罩本體部2覆蓋著戴用者的口鼻的 狀態下，將左側耳掛部3a的左側耳掛孔5a掛在戴用者的 左耳，並將右側耳掛部3b的右側耳掛孔5b掛在戴用者的 右耳。 本實施形態中’左側耳掛部3 a及右側耳掛部3b是與 口罩本體$ 2形成不同體，分別在左側邊界部（left side b〇Undary regi〇n) 4A 及右側邊界部（right side boundary gion) 4B 〃 口罩本體部2部分疊合並接合。其詳細容 後述，但作爲左側耳掛部3a&右側耳掛部3b與口、罩本體 -11 - 200934546 部2的接合方法，可使用具有凹凸形狀的壓花輥進行所謂 壓花加工（embossing process) ”的接合。 本實施形態'中，左側耳掛部3 a及右側耳掛部3 b是與 口罩本體部2同樣由熱可塑性合成纖維構成的不織布所形 成。又，作爲此不織布是使用口罩戴用時，戴用者不會感 覺到耳朵疼痛之具有伸縮性的不織布爲理想。例如使用具 有較口罩本體部2高伸縮性的不織布。具體而言，左側耳 〇 掛部3a及右側耳掛部3b層積由可非彈性的伸長（ expandable non-elastically)的伸長性纖維構成的伸長層 (expanding layer )(例如丙烯連續纖維互相熔接的不織 布）、與由可彈性伸縮的彈性伸縮性纖維所構成的彈性層 (elastic layer )(例如使用由熱可塑性合成纖維的彈性 體（elastomer)或氨基甲酸乙酯（urethane)等所構成的 彈性絲（elastic yarn )的不織布）所形成。又，其詳細容 後述’於左側耳掛部3a及右側耳掛部3b形成有複數個孔 © (開口）6。藉由該複數個孔6可提昇左側耳掛部3 a及右 側耳掛部3 b的伸縮性。 然而’設計•開發口罩1之際，良好地貼合在戴用者 的臉（貼合性）是重要的。爲了提昇此貼合性，必須充分 考慮到臉的大小或形狀等戴用者的特徵、或操作口罩的方 法等的戴用者的行動模式（action pattern)。例如兒童與 —般的大人相較鼻低臉頰（cheek )高（raise )，又，鼻 子與耳朵間的上下方向的間隔短。這樣的兒童使用一般大 人用的口罩的話’口罩本體部會有從適當位置偏移或無法 -12- 200934546 確保足夠的嘴邊空間之虞。又，僅是縮小一般大人用的口 罩而形成的話’就無法成爲可充分反映兒童或臉小的人的 臉特徵的口罩。 於此’本發明者們分析兒童的臉的特徴或兒童的行動 模式’提出構成對應兒童的臉的特徴或兒童的行動模式用 的口罩1的口罩本體部2或耳掛部3(左側耳掛部3a、右 側耳掛部3b)需要修改的點。那時，提出了以下6個修正 〇 點。 〔臉的形狀〕 (1) 兒童是比一般的大人鼻低臉頰高（凸起）。且 ，比一般的大人多具有圓潤的鼻子。 (2) 兒童從嘴唇到鼻尖的間隔比—般的大人還短。 (3) 兒童鼻子與耳朵間的上下方向的間隔（詳而言 之’鼻根（root of nose)的上端部與耳根的上端部間的上 ❹ 下方向的間隔）比一般的大人還短。 〔行動模式〕 (4) 兒童由於比較多話（chatter away )，所以口罩 谷易從適晶的fii置偏移（not in the proper place)。 (5) 兒童將耳掛部的耳掛孔掛在耳朵之際，會有強 拉耳掛部的傾向’所以耳掛部容易伸長。 (6 )兒童沒有耐性（fickle )，所以對口罩的興趣不 會持久。 -13- 200934546 再者，本發明者們是根據該等修正點進行檢討，尤其 是針對適合兒童的口罩進行檢討。然後，開發出具備以下 所示的第1〜第6構造之中的至少1個構造的口罩。 (第1構造） 參閱圖3及圖4說明口罩1的第1構造。而且，圖3 中，表示於折叠口罩1的狀態（口罩折疊時），從側面觀 φ 看的圖。又，圖4中，表示於展開口罩1的狀態（口罩展 開時），從戴用者側觀看的圖。 又，本實施形態中，由於是在左側邊界部4A疊合口 罩本體部2 (左側薄片部2a )與左側耳掛部3 a並予以接 合，所以在口罩本體部2 (左側薄片部2a )與左側耳掛部 3a之間有兩處的直線狀的邊界線的存在。同樣的，由於是 在右側邊界部4B疊合口罩本體部2 (右側薄片部2b)與 右側耳掛部3 b並予以接合，所以，在口罩本體部2 (右側 ❹ 薄片部2b)與右側耳掛部3b之間有兩處的直線狀的邊界 線的存在。以下是以口罩本體部2與左側耳掛部3a的兩 處的邊界線之中，左側耳掛孔5 a側的邊界線作爲左側邊 界線4a使用，並針對口罩本體部2與右側耳掛部3b之間 的兩處的邊界線之中，右側耳掛孔5 b側的邊界線作爲右 側邊界線4b使用的情況進行說明。此外，也可以兩處的 邊界線之中，左側薄片部2a (右側薄片部2b )的緣部2e 側的邊界線作爲左側邊界線4a (右側邊界線4b )來使用 -14- 200934546 第1構造是依據前述修正點（1 )及（4 )所開發的， 修正了口罩本體部2的左右方向的橫寬尺寸。第1構造中 ，上端部側的橫寬（圖3中的a)設定的比下端部側的橫 寬（圖3中的b )短。 具體而言，於圖3所示的口罩折疊時，在口罩本體部 2 (左側薄片部2a )和左側耳掛部3之間的邊界線（左側 邊界線）4a與左側薄片部2a的緣部2c之間，拉出與左側 φ 邊界線4a正交，通過左側邊界線4a的上端部X1的線（ 作爲「第1條線」）L1、與通過左側邊界線4a的下端部 X2的線（作爲「第2條線」）L2。然後，以左側邊界線 4a的上端部XI、與第1條線L1和左側薄片部2a的緣部 2c交叉的點Y1之間的長度作爲第1條線L1的長度a。又 ，以左側邊界線4a的下端部X2、與第2條線L2和左側 薄片部2a的緣部2c交叉的點Y2之間的長度作爲第2條 線L2的長度b。第1構造中，第1條線L1的長度a被設 〇 定成比第2條線L2的長度b短（a<b)。 同樣地在口罩本體部2(右側薄片部2b)與右側耳掛 部3b之間的邊界線（右側邊界線）4b和右側薄片部2b的 緣部2c之間，拉出與右側邊界線4b正交，通過右側邊界 線4b的上端部X1的線（第1條線）L1、與通過右側邊界 線4b的下端部X2的線（第2條線）L2。然後，將第1條 線L1的長度（X1與Y1之間的長度）a設定的比第2條 線L2的長度（X2與Y2之間的長度）b還短（a<b)。 第1構造中，圖4所示的口罩展開時，左右上端部 -15- 200934546 X1間的長度（上端部側的橫寬）大致相當於第1條線L1 的長度a的兩倍（2xa)。又，左右下端部X2間的長度（ 下端部側的橫寬）大致相當於第2條線L2的長度b的兩 倍（2xb )。亦即，將口罩1展開呈立體狀的狀態時，從 戴用者側或其相反側觀看的話，口罩本體部2是形成以上 端部X1側爲短邊、以下端部X2側爲長邊的梯形形狀， 或是由左側邊界線4a及右側邊界線4b形成「八」字形狀200934546 IX. Description of the Invention [Technical Field of the Invention] The present invention relates to a mask worn on a person's face. [Prior Art] Japanese Patent Laid-Open Publication No. Hei 7-2 753 84 discloses a mask covering a wearer's mouth and nose, and in particular, a three-dimensional mask. The three-dimensional mask is composed of: a mask body: a left side ear hook part; and a right side ear hook part. Further, the mask body portion is configured to have a planar shape when the mask is folded. The mask has a three-dimensional shape when worn. As a result, a mouth space is formed between the mask body portion and the wearer's mouth, so that discomfort such as suffocation can be eliminated. [Explanation] ® [Problems to be Solved by the Invention] However, when designing and developing such a mask, it is important to adhere well to the wearer's face (adhesiveness). SUMMARY OF THE INVENTION The present invention has been made in view of the above, and it is an object of the invention to provide a mask which is attached to a wearer's face. [Means for Solving the Problem] In order to achieve the above-mentioned problem, the invention described in each request item is constructed. The present invention is a mask worn on the wearer's face, and has at least: a mask-5-200934546 body portion, a left ear hook portion, and a right ear hook portion. The mask of the present invention can be designed as a single-use or multiple-use disposable cartridge, or it can be a reusable type by washing. The mask body covers the wearer's nose and mouth. The mask body portion is configured to be worn in a flat state or in a three-dimensional state. It is desirable that the composition be formed in a three-dimensional shape at least when worn. The mask body portion is formed by a Φ method in which one sheet portion (sheet) is joined, or by joining all or a part of a plurality of sheet portions (sheets). The sheet portion forming the body portion of the mask is generally fixed by mechanical treatment, chemical treatment, heat treatment or by means of a parent weave. Typically, it is composed of a non-woven fabric which is fused (welded) containing a part of thermally soluble fibers (thermoplastic fibers). The left ear hook portion and the right ear hook portion have a left ear hook hole and a right ear hook hole that can be hung on the wearer's left and right ears, and extend from the left side and the right side of the mask body portion. The left earloop portion and the right earloop portion may also be different from the mask body portion or may be integral with the mask body portion. Further, in the present invention, a plurality of holes (openings) are formed through the left earloop portion and the right earloop portion. The hole may have various holes such as an elliptical shape, a rhombic shape, a polygonal shape, and a circular shape. Further, the fiber density of at least a part of the edge portion of the hole is higher than the fiber density of the other portions. This configuration is typically a non-woven fiber 200934546 dimension when a hole is formed by a fluid jet such as a water jet (high pressure water) or a steam jet. It is obtained by pushing it to the circumference of the fluid jet (the edge of the hole). At this time, the fiber density of a part of the edge of the hole may be higher than the fiber density of the other portion of the edge of the hole, and the fiber density of a part of the edge of the hole may be higher than the edge of the hole. The fiber density outside the place is high. In the present invention, in order to hang the left ear hook portion and the right ear hook portion in the left ear and the right ear, the left ear hook portion and the right ear hook portion are pulled toward the left and right to form a φ hole 'and the left ear hook portion and the right side. The ear hooks extend in the direction of the pull. According to this, the increase in the force applied to the left and right ears can be suppressed, and the wearer is less likely to feel the pain of the ear. Furthermore, since the fiber density of at least a portion of the edge of the hole is raised, the elastic force (recovery force) (recovery force (recover f0rce)) increases. Accordingly, the left earloop portion and the right earloop portion can be easily restored from the extended state to the original position. Therefore, even when the mask is repeatedly worn, since the left ear hook portion or the right ear hook portion can be prevented from being stretched, the durability can be improved. In another aspect of the invention, the plurality of holes include holes having two axes (long axis and short axis) having different lengths. Further, the holes having the two shafts having different lengths form a long axis and a left boundary line between the mask body portion and the left ear hook portion, or a right boundary line between the mask body portion and the right ear hook portion is parallel. Here, "parallel" does not include a state in which the long axis and the boundary line are completely parallel, and the state of the parallel state is also included. Further, all or a part (preferably all) of a plurality of holes are set as holes having two axes having different lengths. Further, the holes having the two axes having different lengths may have at least two axes having different lengths. Typically, a cross-sectional ellipse 200934546 shaped hole can be used. According to this, when the left ear hook portion and the right ear hook portion are pulled to the left and right, the hole is easily deformed by the pulling direction. And the elastic force (restoring force) of the left ear hook and the right ear hook will also increase. Therefore, the comfort and durability are improved. In still another aspect of the invention, the "hole" is formed by spraying a jet of water or a jet of steam toward the nonwoven fabric. According to this, by spraying the water spray stream or the steam jet to the left ear hook portion and the right ear hook portion, the hole density can be formed by increasing the fiber density of at least a portion of the edge portion of the hole. The pressure of the spray water stream or the pressure of the steam jet can be appropriately selected. [Effects of the Invention] By using the present invention, it is possible to provide a wearer with a good fit. [Embodiment] [Best Mode for Carrying Out the Invention] Hereinafter, the configuration of the mask 1 according to an embodiment of the present invention will be described with reference to the drawings. Further, the mask 1 of the present embodiment is a disposable mask which is assumed to be used in a single or multiple times. The mask 1 can be used as a mask having a barrier function such as pollen or a common cold virus or a mask having an environmental function in improving the space in the mouth. Further, the mask 1 is typically a child including a child, a primary school student, a middle school student, or a small face, and is suitable for use. However, by increasing the shape of the mask 1, a general adult or the like can also be used. Fig. 1 and Fig. 2 show the overall configuration of the mask 1 of the present embodiment. Further, Fig. 1 shows a state in which the mask 1 is folded (when the mask is folded) as viewed from the side. In addition, Fig. 2 shows a state in which the mask 1 is unfolded (when the mask is deployed), as viewed from the wearer side. As shown in Figs. 1 and 2, the mask 1 of the present embodiment is composed of a mask body 2 and an ear hook part 3. (Mask body portion 2) The mask body portion 2 is a member that covers at least the mouth of the wearer, and is ideally a member that covers the mouth and nose, and is formed into a cup shape. The mask body 2 may also be referred to as a "cup-shaped part" or an "mouth cover part". In the present embodiment, the mask body 2 is covered by the wearer's left face 6 ( The left side sheet portion 2a of the left side of a face) and the right side of a face right side sheet portion 2b of the wearer. The left side sheet portion 2a and the right side sheet portion 2b are joined by heat fusion at a portion of the edge portion 2c. According to this, the mask body 2 is divided into left and right by the edge portion 2c as a boundary. The shape of the left side sheet portion 2a and the right side sheet portion 2b (especially the shape of the edge portion 2c) is designed such that the left side sheet portion 2a and the right side sheet portion 2b are separated in a state where the edge portion 2c is joined. At the time of the formation, a recess is formed on the wearer side of the mask body 2. In the present embodiment, the left side sheet portion 2a and the right side sheet portion 2b have the same shape of -9-200934546. Further, the edge portion 2c is curved in a curved shape toward the wearer. Accordingly, when the mask covering the left side sheet portion 2a and the right side sheet portion 2b is folded ("when the mask is stored" or "when the mask is not in use"), the mask body portion 2 is planar as shown in Fig. 1 . On the other hand, when the mask for separating the left side sheet portion 2a and the right side sheet portion 2b is unfolded ("time when the mask is worn"), the mask body portion 2 is three-dimensional as shown in Fig. 2 . Further, the mask body φ body 2 may have a three-dimensional shape at least when the mask is worn. For example, it may be three-dimensional when the mask is worn or not. Further, the mask 1 including at least the mask main body portion 2 which is three-dimensionally worn when the mask is worn may be referred to as a "three-dimensional mask" or a "three-dimensional mask". In the present embodiment, the mask main body portion 2, that is, the left side sheet portion 2a and the right side sheet portion 2b are formed of a nonwoven fabric composed of thermoplastic synthetic fibers. As the thermoplastic fiber, polyethylene (polyethylene), polypropylene, polyethylene terephthalate or the like can be suitably used, and the air through method and the spunbond method can be used. (spun bond method), thermal bond method, spun lace method, point bond method, melt blow method, stitch bond (stitch bond) A fiber made of a density of 30 to 150 [g/m2], a chemical bond method, a needle punch method, or the like. Non-woven fabrics are ideal for the use of non-woven fabrics that have the ability to capture pollen and droplet viruses and have breathability and good skin feel (S0ft and -10 - 200934546 confortable). It is also desirable to use a non-woven fabric having a lower elasticity than the ear portion 3, and it is easy to maintain the three-dimensional structure when the mask is worn. (ear hook portion 3) The ear hook portion 3 has left ear portions 3a and right ear hook portions 3b provided on the right and left sides of the mask body portion 2. In the present embodiment, the left earloop portion 3a φ extends from the end portion of the left side sheet portion 2a of the mask body portion 2 (opposite the edge portion 2C). The right earloop portion 3b is from the right side of the mask body portion 2. The end of the sheet portion 2b extends. Further, the left earloop portion 3a is formed in a ring shape (nng-shape) having a left earloop (opening) 5a that can be hung on the wearer's left ear, and the right earloop portion 3b is formed to be hung on The ring of the right earloop (opening) 5b of the right ear of the wearer is worn. The left earloop hole 5a and the right earhook hole 5b extend in a direction intersecting the vertical direction of the mask ( (the up and down direction in the figure). When the mask is worn, the left earloop 5a of the left earloop 3a is hung on the wearer's left ear with the mask body 2 covered with the wearer's nose and mouth, and the right earloop is attached. The right ear hook hole 5b of 3b is hung on the wearer's right ear. In the present embodiment, the left earloop portion 3a and the right earloop portion 3b are formed separately from the mask body $2, and are respectively on the left side boundary portion (left side b〇Undary regi〇n) 4A and the right side boundary portion (right side). Boundary gion) 4B 〃 The mask body 2 is partially overlapped and joined. Although the details are described later, the bonding method of the left earloop portion 3a & the right ear hook portion 3b and the mouth and the cover body -11 - 200934546 portion 2 can be performed by using an embossing roller having a concave-convex shape for embossing process. In the present embodiment, the left earloop portion 3 a and the right ear hook portion 3 b are formed of a nonwoven fabric composed of thermoplastic synthetic fibers similarly to the mask body portion 2. Further, as the nonwoven fabric, a mask is used. When worn, it is desirable that the wearer does not feel the stretchable non-woven fabric of the ear pain. For example, a non-woven fabric having a higher elasticity than the mask body 2 is used. Specifically, the left earloop portion 3a and the right ear hook The portion 3b is laminated with an expanding layer composed of expandable non-elastically elongated fibers (for example, a non-woven fabric in which propylene continuous fibers are fused to each other), and an elastically stretchable elastic fiber. An elastic layer (for example, an elastomer or a urethane composed of a thermoplastic synthetic fiber) A non-woven fabric of elastic yarn is formed. Further, in detail, a plurality of holes © (openings) 6 are formed in the left earloop portion 3a and the right earloop portion 3b. The plurality of holes 6 can be formed by the plurality of holes 6 It is important to improve the stretchability of the left earloop portion 3 a and the right ear hook portion 3 b. However, it is important to fit the wearer's face (adhesiveness) well when designing and developing the mask 1 . The fit must take into account the wearer's characteristics such as the size and shape of the face, or the action pattern of the wearer's method, such as a child. (cheek) high (raise), and the distance between the nose and the ear is short. When such a child uses a mask for adults, the body of the mask will be offset from the proper position or cannot be -12-200934546. In addition, it is a mask that can fully reflect the facial features of a child or a person with a small face. This is the inventor's analysis of the child's face. Amnesty or The action pattern of the child proposes a point that needs to be modified in the mask body portion 2 or the ear hook portion 3 (the left ear hook portion 3a and the right ear hook portion 3b) of the mask 1 for the action pattern of the child's face or the child. At that time, the following six correction points were proposed. [The shape of the face] (1) The child is lower than the average adult's nose and has a low cheek (bulge). Moreover, it has a rounded nose more than the average adult. (2) The interval between the child's lips and the tip of the nose is shorter than that of the average person. (3) The distance between the child's nose and the ear in the up and down direction (in detail, the upper end of the root of the nose and the upper end of the ear root) The interval between the upper and lower directions is shorter than the average adult. [Action mode] (4) Because the child is chatter away, the mask is not offset from the proper fii. (5) When the child hangs the ear hanging hole of the ear hook on the ear, there is a tendency to pull the ear hook portion. Therefore, the ear hook portion is easily stretched. (6) Children have no fickle, so interest in masks will not last long. -13- 200934546 Furthermore, the inventors conducted a review based on these amendments, especially for masks suitable for children. Then, a mask having at least one of the first to sixth structures shown below was developed. (First Structure) A first structure of the mask 1 will be described with reference to Figs. 3 and 4 . Further, Fig. 3 shows a state in which the mask 1 is folded (when the mask is folded) and viewed from the side view φ. Fig. 4 is a view as seen from the wearer's side in a state in which the mask 1 is deployed (when the mask is opened). Further, in the present embodiment, since the mask body portion 2 (left side sheet portion 2a) and the left ear piece portion 3a are joined to each other at the left side boundary portion 4A, the mask body portion 2 (left side sheet portion 2a) and the mask body portion 2 are separated from each other. There are two linear boundary lines between the left earloop portions 3a. Similarly, since the mask body portion 2 (the right side sheet portion 2b) and the right side ear hook portion 3b are joined at the right side boundary portion 4B, the mask body portion 2 (the right side sheet portion 2b) and the right side ear are joined. There are two linear boundary lines between the hanging portions 3b. Hereinafter, the boundary line between the mask body 2 and the left earloop 3a is used as the left boundary line 4a, and the mask body 2 and the right ear hook are used. Among the two boundary lines between 3b, the boundary line on the side of the right ear hook hole 5b is used as the right boundary line 4b. Further, among the boundary lines of the two places, the boundary line on the edge portion 2e side of the left side sheet portion 2a (the right side sheet portion 2b) may be used as the left side boundary line 4a (the right side boundary line 4b). -14-200934546 First structure According to the above-mentioned correction points (1) and (4), the lateral width of the mask body 2 in the left-right direction is corrected. In the first structure, the lateral width of the upper end portion (a in Fig. 3) is set shorter than the lateral width of the lower end portion (b in Fig. 3). Specifically, at the time of folding of the mask shown in FIG. 3, the boundary line (left boundary line) 4a between the mask body portion 2 (left side sheet portion 2a) and the left ear hook portion 3 and the edge portion of the left side sheet portion 2a Between 2c, a line passing through the upper boundary portion 4a of the left boundary line 4a (as the "first line") L1 and the line passing through the lower end portion X2 of the left boundary line 4a is pulled out. As the "2nd line") L2. Then, the length between the upper end portion XI of the left boundary line 4a and the point Y1 crossing the edge portion 2c of the first line L1 and the left side sheet portion 2a is taken as the length a of the first line L1. Further, the length between the lower end portion X2 of the left boundary line 4a and the point Y2 crossing the edge portion 2c of the second line portion L2 and the left side sheet portion 2a is defined as the length b of the second line L2. In the first structure, the length a of the first line L1 is set to be shorter than the length b of the second line L2 (a < b). Similarly, between the boundary line (right boundary line) 4b between the mask main body portion 2 (right side sheet portion 2b) and the right side ear hook portion 3b and the edge portion 2c of the right side sheet portion 2b, the right side boundary line 4b is pulled out. The line passing through the upper end portion X1 of the right boundary line 4b (the first line) L1 and the line passing through the lower end portion X2 of the right boundary line 4b (the second line) L2. Then, the length (the length between X1 and Y1) a of the first line L1 is set shorter than the length (the length between X2 and Y2) b of the second line L2 (a < b). In the first structure, when the mask shown in FIG. 4 is deployed, the length between the right and left upper end portions -15-200934546 X1 (the lateral width on the upper end side) is approximately twice the length a of the first line L1 (2xa). . Further, the length between the left and right lower end portions X2 (the lateral width on the lower end portion side) is approximately equal to twice the length b (2xb) of the second line L2. In other words, when the mask 1 is in a three-dimensional state, the mask body 2 is formed to have a short side on the side of the upper end X1 and a long side on the side of the lower end X2 when viewed from the wearer side or the opposite side. a trapezoidal shape, or an "eight" shape formed by the left boundary line 4a and the right boundary line 4b
G 如上述，第1構造是將口罩本體部2的上端部XI的 橫寬構成比下端部X2的橫寬短。因此，鼻低臉頰高的兒 童等使用時’口罩本體部2的上端部XI側容易與戴用者 的鼻子成爲面接觸。所以，可防止口罩從適當的戴用位置 偏移。 更具體而言’口罩戴用時’口罩本體部2的最上部的 緣部分被配置在戴用者的鼻子的稜線上，左側薄片部2a © 及右側薄片部2b分別沿著鼻子的左側的傾斜部及右側的 傾斜部配置著。此時，因爲口罩本體部2的上端部的橫寬 比下贿部的橫寬還短，所以左側薄片部2 a及右側薄片部 2b可以良好地貼合在戴用者的鼻子的狀態被配置著。 又，由於口罩本體部2的上端部的橫寬比下端部的橫 寬短，所以將左側耳掛部3a及右側耳掛部3b掛在耳朵時 ，左側耳掛部3a及右側耳掛部“拉引口罩本體部2的力 量是上端部比下端部大。亦即，口罩本體部2按壓在戴用 者臉的力量是在口罩本體部2的上端部大，在下端部小。 -16 - 200934546 再者，由於口罩本體部2的下端部的橫寬比上端部的橫寬 長，所以。口罩本體部2的下端部成爲覆蓋在戴用者的下 顎（Jaw)的大範圍，且成爲容易分散將口罩本體部2的 下端部按壓戴用者的下顎的力量。藉此，可抑制口罩本體 部2追隨戴用者的下顎的動作。因此，即使戴用者在戴著 口罩的狀態下說話時，口罩本體部2也不易從適當的戴用 位置偏移。 口罩本體部2與左側耳掛部3a (右側耳掛部3b)之 間的左側邊界線4a (右側邊界線4b )雖是形成直線狀爲 理想，但也可形成曲線狀。將左側邊界線4a (右側邊界線 4b )形成曲線狀時，使用連結左側邊界線4a (右側邊界線 4b)的上端部XI與下端部X2的直線作爲拉出線L1及線 L2用的左側邊界線（右側邊界線）。 (第2構造） ❹ 參閱圖5及圖6說明口罩1的第2構造。而圖5中， 表示折疊口罩1的狀態（口罩折疊時），從側面觀看的圖 。又，圖6中，表示於展開口罩1的狀態（口罩展開時） ，從戴用者側觀看的圖。 第2構造是根據前述修正點（2 )所開發的，修改了 口罩本體部2的頂部（top point)的位置。第2構造中， 口罩本體部2的頂部（圖5中的點Y4 )(罩口部的頂部 )的位置是配置在比口罩1的上下方向的中央還下方。 具體而言，於圖5所示的口罩折疊時，在口罩本體部 -17- 200934546 2 (左側薄片部2a )與左側耳掛部3a之間的邊界線（左 邊界線）4a和左側薄片部2a的緣部2c之間’拉出與左 邊界線4a正交的線。而且’左側邊界線4a與左側薄片 2a的緣部2c之間的長度最長的線（第4條線）L4是以 左側邊界線4a交叉的點作爲點X4。第2構造中’將通 左側邊界線4a的點X4的第4條線（長度最長的線） 設定成配置在比通過左側邊界線4&的上端部X1與下端 ^ X2之間的中央部X3的線（第3條線）L3下方。亦即 長度最長的第4條線L4通過的點X4被設定成配置在比 央部X3下方。 同樣，在口罩本體部2 (右側薄片部2b )與右側耳 部3b之間的邊界線（右側邊界線）4b和右側薄片部2b 緣部2c之間，拉出與右側邊界線4b正交的線。然後， 側邊界線4b與右側薄片部2b的緣部2c之間的長度最 的線（第4線）L4是以與右側邊界線4b交叉的點作爲 ❹ X4。並且將通過右側邊界線4b的點X4的第4條線（ 度最長的線）L4設定成配置在比通過右側邊界線4b的 端部XI與下端部X2的中央部X3的線（第3條線）L3 方。 第2構造中，在圖6所示的口罩展開時，左右的 X4間的長度（頂部的橫寬）大致相等於第4條線L4的 度c的兩倍（2xc)。 如上述，第2構造中，口罩本體部2的頂部Y4( 寬最長的線L4的位置）被配置在比口罩1的上下方向 側 側 部 與 過 L4 部 中 掛 的 右 長 點 長 上 下 點 長 橫 的 -18- 200934546 中央部X3下方。因此，從嘴唇到鼻尖的間隔短兒童等使 用時，可增大戴用者嘴邊空間。 (第3構造） 參閱圖7及圖8說明口罩1的第3構造。而圖7中’ 表示折疊口罩1的狀態（口罩折疊時），從側面觀看的圖 。又，圖8中，表示於展開口罩1的狀態（口罩展開時） 0 ，從戴用者側觀看的圖。 此第3構造是根據前述修正點（3) 、（4)及（5) 所開發的’修正左側耳掛孔5a及右側耳掛孔5b的配設位 置。第2構造中，左側耳掛孔5a及右側耳掛孔5b配置在 比一般大人的口還低的位置。 具體而言，於圖7所示的口罩折疊時及圖8所示的口 罩展開時’拉出連結口罩本體部2(左側薄片部2a)的緣 部2c的上端部γ5與口罩本體部2(左側薄片部2a)和左 Ο 側耳掛部3 a之間的邊界線（左側邊界線）4a的上端部X i 的線（第5條線）L 5。第2構造中，左側耳掛部3 a的左 側耳掛孔5a配置在比第5條線L5下方。 同樣’拉出連結口罩本體部2 (右側薄片部2b )的緣 部2c的上端部Y5與口罩本體部2 (右側薄片部2b )和右 側耳掛部3 b之間的邊界線（右側邊界線）4 b的上端部χ i 的線（第5條線）L5。並且，將右側耳掛部3b的右側耳 掛孔5b配置在比第5條線L5下方。 如上述，第3構造中，左側耳掛部3 a的左側耳掛孔 -19- 200934546 5a被配置在比連結本體部2(左側薄片部2a)的緣部2c 的上端部Y5、與口罩本體部2(左側薄片部2a)和左側 耳掛部3a之間的左側邊界線4a的上端部XI的線L5還下 方’並且將右側耳掛部3 b的右側耳掛孔5 b配置在比連結 本體部2 (右側薄片部2b )的緣部2c的上端部Y5與口罩 本體部2 (右側薄片部2b )和右側耳掛部3 b之間的右側 邊界線4b的上端部XI的線L5還下方。據此，鼻子與耳 Q 朵間的上下方向的間隔（詳而言之是鼻根的上端部與耳根 的上端部間的上下方向的間隔）短的兒童等所使用時，可 將口罩本體部2配置在適當的戴用位置。 又’使用第3構造時，比左側耳掛部3a的左側耳掛 孔5 a上側的部分的長度與比左側耳掛部5 a下側的部分的 長度是大致相等、或比左側耳掛孔5a上側的部分的長度 要比左側耳掛孔5 a下側的部分的長度還稍微長。同樣， 比右側耳掛部3b的右側耳掛孔5b上側的部分的長度與比 Ο 右側耳掛部5b下側的部分的長度大致相等、或是比右側 耳掛孔5 b上側的部分的長度要比右側耳掛孔5 b下側的部 分的長度還要稍微長。據此，即使將左側耳掛部3a (右側 耳掛部3b)稍微用力朝左右方向拉引，由於比左側耳掛孔 5a上側的部分及比左側耳掛孔5a下側的部分（比右側耳 掛孔5 b上側的部分及比右側耳掛孔5 b下側的部分）大致 同樣地伸長’所以，可防止左側耳掛部3 a (右側耳掛部 3b)局部性的伸長。因此’兒童等使用之際，可防止戴用 性能在短期間降低。（並提昇耐久性）。 -20- 200934546 (第4構造）As described above, in the first structure, the lateral width of the upper end portion XI of the mask body 2 is shorter than the lateral width of the lower end portion X2. Therefore, when the child with a low nose and a high cheek is used, the upper end portion XI side of the mask main body portion 2 is easily brought into surface contact with the wearer's nose. Therefore, the mask can be prevented from shifting from the proper wearing position. More specifically, when the mask is worn, the uppermost edge portion of the mask body 2 is disposed on the ridgeline of the wearer's nose, and the left sheet portion 2a and the right sheet portion 2b are inclined along the left side of the nose, respectively. The inclined portion on the right side and the right side is arranged. At this time, since the lateral width of the upper end portion of the mask main body portion 2 is shorter than the lateral width of the lower bribe portion, the left side sheet portion 2a and the right side sheet portion 2b can be placed in a state of being nicely attached to the wearer's nose. With. Further, since the lateral width of the upper end portion of the mask main body portion 2 is shorter than the lateral width of the lower end portion, when the left earloop portion 3a and the right earloop portion 3b are hung on the ear, the left earloop portion 3a and the right earloop portion " The force of the pull-tab body portion 2 is larger than the lower end portion, that is, the force that the mask body portion 2 presses against the wearer's face is larger at the upper end portion of the mask body portion 2 and smaller at the lower end portion. In addition, since the lateral width of the lower end portion of the mask main body portion 2 is longer than the lateral width of the upper end portion, the lower end portion of the mask main body portion 2 covers a wide range of the wearer's jaw (Jaw), and is easy. The lower end portion of the mask main body portion 2 is pressed against the force of the lower jaw of the wearer. This prevents the mask main body portion 2 from following the wearer's lower jaw. Therefore, even if the wearer is wearing the mask, the speaker is in a state of wearing the mask. The mask main body portion 2 is also less likely to be displaced from an appropriate wearing position. The left side boundary line 4a (right side boundary line 4b) between the mask main body portion 2 and the left side ear hook portion 3a (the right side ear hook portion 3b) is formed. Straight line is ideal, but it can also be curved. When the side boundary line 4a (the right boundary line 4b) is formed in a curved shape, a straight line connecting the upper end portion XI and the lower end portion X2 of the left boundary line 4a (the right boundary line 4b) is used as the left boundary line for the pull-out line L1 and the line L2. (Second boundary line) (Second structure) 第 The second structure of the mask 1 will be described with reference to Fig. 5 and Fig. 6. Fig. 5 shows a state in which the mask 1 is folded (when the mask is folded), and is viewed from the side. Fig. 6 shows a state in which the mask 1 is unfolded (when the mask is deployed), as viewed from the wearer side. The second structure is developed based on the correction point (2), and the top of the mask body 2 is modified. In the second structure, the position of the top of the mask body 2 (point Y4 in Fig. 5) (the top of the mouth portion) is disposed below the center of the mask 1 in the vertical direction. In the case where the mask shown in FIG. 5 is folded, the boundary line (left boundary line) 4a between the mask body portion -17-200934546 2 (left side sheet portion 2a) and the left earloop portion 3a and the left side sheet portion 2a Between the edge portions 2c' pull out a line orthogonal to the left boundary line 4a. And 'left side The line having the longest length (fourth line) L4 between the boundary line 4a and the edge portion 2c of the left side sheet 2a is a point X4 that intersects with the left side boundary line 4a. In the second configuration, 'the left side boundary line 4a is passed. The fourth line (the longest line) of the point X4 is set to be disposed below the line (the third line) L3 of the central portion X3 between the upper end portion X1 and the lower end portion X2 passing through the left boundary line 4& That is, the point X4 through which the fourth line L4 having the longest length passes is set to be disposed below the intermediate portion X3. Similarly, the boundary line between the mask body portion 2 (the right side sheet portion 2b) and the right side portion 3b (the right side boundary) A line orthogonal to the right boundary line 4b is drawn between the line 4b and the edge portion 2b of the right side sheet portion 2b. Then, the line (fourth line) L4 having the longest length between the side boundary line 4b and the edge portion 2c of the right side sheet portion 2b is a point intersecting the right boundary line 4b as ❹ X4. Further, the fourth line (the longest line) L4 passing through the point X4 of the right boundary line 4b is set to be arranged in a line (the third line) than the end portion XI passing through the right boundary line 4b and the central portion X3 of the lower end portion X2. Line) L3 side. In the second structure, when the mask shown in Fig. 6 is deployed, the length between the left and right X4 (the horizontal width of the top) is approximately equal to twice the degree c (2xc) of the fourth line L4. As described above, in the second structure, the top portion Y4 (the position of the longest line L4) of the mask body 2 is disposed longer than the right long point of the right side of the mask 1 and the side of the vertical direction side of the mask 1 Horizontal -18- 200934546 Central Department X3 below. Therefore, when the child is separated from the lips to the tip of the nose, the mouth space of the wearer can be increased. (Third Structure) A third structure of the mask 1 will be described with reference to Figs. 7 and 8 . On the other hand, in Fig. 7, 'shows the state in which the mask 1 is folded (when the mask is folded), as viewed from the side. In addition, FIG. 8 shows a state in which the mask 1 is deployed (at the time of mask development) 0 and viewed from the wearer side. This third structure is a position where the left earloop 5a and the right earloop 5b are corrected in accordance with the correction points (3), (4), and (5). In the second structure, the left earloop hole 5a and the right earloop hole 5b are disposed at a position lower than that of a general adult. Specifically, when the mask shown in FIG. 7 is folded and when the mask shown in FIG. 8 is deployed, the upper end portion γ5 of the edge portion 2c of the connection mask body portion 2 (left side sheet portion 2a) and the mask body portion 2 are pulled out ( A line (5th line) L 5 of the upper end portion X i of the boundary line (left boundary line) 4a between the left side sheet portion 2a) and the left side ear portion 3a. In the second structure, the left earloop hole 5a of the left earloop portion 3a is disposed below the fifth line L5. Similarly, the boundary line between the upper end portion Y5 of the edge portion 2c of the connection mask main body portion 2 (the right side sheet portion 2b) and the mask body portion 2 (the right side sheet portion 2b) and the right side ear hook portion 3b is pulled out (the right boundary line) ) The line (5th line) L5 of the upper end χ i of 4 b. Further, the right earloop 5b of the right earloop portion 3b is disposed below the fifth line L5. As described above, in the third structure, the left earloop hole -19-200934546 5a of the left earloop portion 3a is disposed at the upper end portion Y5 of the edge portion 2c that connects the main body portion 2 (the left side sheet portion 2a), and the mask body. The line L5 of the upper end portion XI of the left side boundary line 4a between the portion 2 (the left side sheet portion 2a) and the left side ear hook portion 3a is also lower than 'and the right ear hook hole 5b of the right ear piece 3b is disposed at a ratio The upper end portion Y5 of the edge portion 2c of the main body portion 2 (the right side sheet portion 2b) and the line L5 of the upper end portion XI of the right side boundary line 4b between the mask body portion 2 (the right side sheet portion 2b) and the right side ear hook portion 3b are also Below. According to this, when the distance between the nose and the ear Q in the vertical direction (in detail, the distance between the upper end portion of the nose root and the upper end portion of the ear root in the vertical direction) is short, the mask body portion can be used. 2 Configured in the appropriate wearing position. Further, when the third structure is used, the length of the upper side of the left earloop 5a of the left earloop 3a is substantially equal to the length of the lower side of the left earloop 5a, or is smaller than the left earloop. The length of the upper portion of the 5a is slightly longer than the length of the lower portion of the left earloop 5a. Similarly, the length of the upper portion of the right earloop 5b of the right earloop portion 3b is substantially equal to the length of the portion of the lower side of the right earloop portion 5b or the length of the portion of the upper portion of the right earloop 5b. It is slightly longer than the length of the lower side of the right ear hook hole 5 b. According to this, even if the left earloop portion 3a (the right earloop portion 3b) is pulled slightly in the left-right direction, the portion on the upper side than the left earloop 5a and the portion on the lower side of the left earloop 5a (than the right ear) The portion on the upper side of the hanging hole 5 b and the portion on the lower side of the right ear hook hole 5 b are elongated in the same manner. Therefore, the left earloop portion 3 a (the right ear hook portion 3 b ) can be prevented from being locally elongated. Therefore, when children are used, it is possible to prevent the wearing performance from being lowered in a short period of time. (and improve durability). -20- 200934546 (4th structure)
參聞圖9說明口罩丨的第4構造。而於圖％表示折 疊口罩1的狀態（口罩折*時），從側面觀看耳掛部’；（ 左側耳掛部3a及右側耳掛部3b )的圖。 B 第4構造是依據前述修正點（5)所開發，修改了耳 掛部3 (左側耳㈣3a及右側耳掛部3b)的材料及構成Reference Fig. 9 illustrates the fourth structure of the mask 丨. The figure % shows the state of the folded mask 1 (when the mask is folded *), and the ear hook portion ' (the left earloop portion 3a and the right earloop portion 3b) are viewed from the side. B The fourth structure is developed according to the aforementioned correction point (5), and the material and composition of the earloop portion 3 (left ear (4) 3a and right ear hook portion 3b) are modified.
❹ 具體而言’左側耳掛部3a及右側㈣部3b是由纖維 長度44mm以上的捲曲纖維（crimp fiber)所構成。又， 於左側耳掛部3a及右側耳掛部3b，貫穿形成複數個孔（ h〇le )(開口（ opening )) 6。孔6剖面是形成具有長度 不同的兩個軸（長軸（l〇ng axis) 6a及短軸（sh〇rt axis )6b)的橢圓形形狀（euiptic shape)。此外，孔6的剖 面並不侷限於橢圓形形狀’可形成菱形形狀（rh〇mbic shape )、多角形形狀（p〇iyg〇nai shape )、圓形形狀（ circular shape )等的各種形狀。 此孔6’典型上是在製造射流噴網不織布（spun-laced non-woven fabrics)之際，對纖維網全面噴射噴水 (water jet)(高壓水流（high-pressure water))，使纖 維網的纖維交絡之後，再藉由對纖維網的表面噴射噴水（ 高壓水流）的方式所形成。使用噴水形成孔6的方式，可 使孔6的緣部的纖維密度變成比其他地方的纖維密度高。 亦即、孔6的緣部的彈性力（也稱爲「回復力（recovery 200934546 force ) j 、 「彈力（spring force )」）增大。因此，爲 了戴上口罩1而被伸長的左側耳掛部3a及右側耳掛部3b 可容易回復到原來的狀態。 此外，只要孔6的緣部的至少一部分的纖維密度比其 他地方的纖維密度高即可。例如：孔6的緣部之中的一部 分的纖維密度比該孔6的緣部的其他地方的纖維密度高的 構成即可、或孔6的緣部之中的一部分的纖維密度比該孔 φ 6的緣部以外的地方的纖維密度高的構成即可。此時，與 孔6的短軸6b交叉的地方及其週邊的地方的纖維密度是 構成高密度爲理想。 製造射流噴網不織布的工程更具體而言具有以下的工 程。 梳棉工程（card process):使用開纖後的纖維束， 形成在寬方向具有均等基重的纖維網。 噴水工程（water j et process ):對纖維網放射高壓 〇 水流，使纖維網的纖維交織，提高薄片強度。 開孔噴水工程（hole-make water jet process):使交 織的薄片通過具有透水的突起部的構造物（網（net). 孔板（hole punched plate))之上，此時，從突起部噴射 高壓水流的方式’在薄片形成孔。此外，也可使用噴射高 壓蒸汽噴射噴流的方式’在薄片形成孔的工程取代噴射高 壓水流的方式，在薄片形成孔的工程。 烘乾工程（dry process):去除薄片含有的水分。 收縮工程（shrink process ) •捲曲纖維是由聚丙烯/ -22- 200934546 改性聚丙烯（modified polypropylene)所形成時，在140 °C附近，改性聚丙嫌開始收縮，但聚丙锦不會收縮。因此 會成爲盤繞狀（becomes like a coil)。此時，產生朝薄片 的搬送方向與寬方向的收縮。 藉由前述梳棉工程及噴水工程，形成纖維與搬送方向 平行配向的不織布基體。又，藉由開孔噴水工程，將流體 射流（fluid jet)(高壓水流或蒸汽噴流）噴射在不織布 〇 基體的方式，在不織布基體形成孔。亦即，由於是藉由流 體射流推開構成不織布基體的纖維，在不織布基體形成孔 。此時，流體射流（高壓水流或蒸汽噴流）的噴射位置雖 被固定著’但由於不織布基體移動著，所以形成有剖面具 有橢圓形形狀的孔。據此，孔的緣部的纖維密度變高。更 進一步’藉由收縮工程，使此纖維密度高的地方（孔的緣 部）的纖維收縮（shrink )。因此，孔的緣部的彈性力（ 彈力）變高。 ^ 第4構造中，爲了將左側耳掛部3a及右側耳掛部3b 掛在左耳及右耳，而拉引左側耳掛部3 a及右側耳掛部3 b 時’則如圖9的右圖所示，形成在左側耳掛部3 &及右側 耳掛部3b的孔6會從兩點鎖線的狀態變化成實線的狀態 。據此’左側耳掛部3a及右側耳掛部3b容易朝拉引的方 向（圖9中的左右方向）延伸。藉由孔6的變形，使得左 側耳掛部3a及右側耳掛部3b伸長的構造可減低將左側耳 掛部3a及右側耳掛部31)掛到左耳及右耳時施加在戴用者 的耳朵的力。亦即’可防止戴用者感到耳朵的疼痛。 -23- 200934546 更進一步，纖維集中到孔6的緣部，使得孔6的緣部 的纖維密度比其他地方的纖維密度更提昇。據此，左側耳 掛部3a及右側耳掛部3b的彈性力（回復力或彈力）變高 。因此’即使重複使用口罩1 ’也可防止左側耳掛部3&及 右側耳掛部3b成爲伸長的狀態，且可長期間使用（並提 昇耐久性（durability is increased))。 此外’孔6至少一部分（適宜的是全部）是如圖9所 〇 示，在口罩折疊時’長軸6a是形成與口罩本體部2和耳 掛部3之間的邊界線4成爲平行的方式爲理想。例如：左 側耳掛部3 a的孔6其長軸6 a是形成與口罩本體部2和左 側耳掛部3 a之間的邊界線4a平行，右側耳掛部3 b的孔6 其長軸6a是形成與口罩本體部2和右側耳掛部3b之間的 邊界線4b平行。此時，孔6其長軸6a也可形成與邊界線 4大致平行。如此構成的方式，耳掛部3(左側耳掛部3a 及右側耳掛部3b)在施加拉力時可變的更容易伸縮。又， © 拉力消失時，可變的更容易回到原來的狀態（恢復）。 此外’圖9所示的實施形態中，規則性的配置有剖面 形成橢圓形形狀的複數個孔6。然而，孔6的剖面形狀、 或配置位置並不侷限於此。例如可採用複數個孔6不規則 配置的構成、或具有其他剖面形狀的複數個孔6規則或不 規則的配置的構成等。 於此，進行關於具有本實施形態的左側耳掛部3a & 右側耳掛部3b的口罩的舒適性（comfortability )與耐久 性的性能評估（property evaluation )(戴用時的張力強 24 - 200934546 度（tensile strength)及伸長回復率（recovering property from extension))。以下，說明此性能評估的順序及結 果。且，以下說明的性能評估是使用JIS L - 1 096法。 (樣品的做成） 使用與前述構成的左側耳掛部3 a及右側耳掛部3 b相 同的材料，做成3片縱210〔 mm〕、橫297〔mm〕、基重 Q 〔 g/m2〕的樣品。再從各樣品之縱方向及橫方向分別 採集3片寬50〔 mm〕、長297〔mm〕的樣本。 (張力強度的測量•評估） 張力強度的測量中，利用眾所周知的定速伸縮形拉力 試驗機’對寬50〔mm〕、長297〔mm〕的前述樣本進行 評估。測量中，將抓住樣本的間隔設定爲2 0 0〔 mm〕、拉 力速度設定爲200〔 mm/min〕。然後，測量各樣本伸長50 φ %時的強度、及伸長90%時的強度，算出各樣本的平均値 °此時，將50%伸長時的強度設爲50%應力〔N〕，將 90%伸長時的強度設爲90%應力〔N〕。而且，5〇%應力 在1〔N〕以下，90%應力在1(；N〕以下可滿足所期望的 舒適性的基準’亦即，評估爲具有將耳掛部3 (左側耳掛 部3a及右側耳掛部3b)掛在耳朵（左耳及右耳）之際不 會造成耳朵疼痛的伸縮性。 (伸縮回復率的測定•評估） -25- 200934546 伸長回復率的測定中，是利用眾所周知的定速伸縮形 拉力試驗機，對寬50〔mm〕、長$ 297〔mm〕的前述樣 本進行評估。測定是將抓住樣本的間隔設定爲200〔 mm〕 、將拉力速度設定爲200〔 mm/min〕。然後，測定各樣本 伸長5 0%伸長後，以相同的速度恢復到原點位置時的恢復 程度（比例）（recover ratio)，及伸長90%後’以相同 的速度恢復到原點位置爲止時的恢復程度（比例），算出 φ 各樣本的平均値。此時，將伸長5 0 %之後的恢復程度設定 爲50%伸長恢復率〔％〕，將伸長90%之後的恢復程度 設定爲90%伸長恢復率〔％〕。而且，50%伸長恢復率在 70〔 ％〕以上’ 90%伸長恢復率在60〔 ％〕以上者滿足了 所期望的耐久性基準，亦即，評估爲耳掛部3 (左側耳掛 部3 a及右側耳掛部3 b )不易成爲伸長狀態。 評估結果確認了爲滿足所期望的舒適性的基準及耐久 性基準’將構成耳掛部3 (左側耳掛部3 a及右側耳掛部 〇 3b)的伸縮性纖維的纖維長設爲44〔mm〕以上，並將孔 6收縮前的大小設爲10〜50網孔的話是有效的。當伸縮性 纖維的纖維長小於44〔mm〕時，即使加大孔6收縮前的 大小’施加在耳朵的應力也會大於基準値。又，將孔6收 縮則的大小設的比5 0網孔還大時，則伸長恢復率比基準 値還大幅變小。又’孔6收縮前的大小比1 〇網孔還小的 話’則接近沒有形成孔6的狀態，且施加在耳朵的應力會 大幅超過基準値。 -26- 200934546 (第5構造） 參閱圖10〜圖13說明口罩1的第5構造。此外，圖 10中’表不折疊口罩1的狀態（口罩折疊時）從側面觀看 的圖。又’圖11中’表示圖10的A—A線剖視圖。又， 圖12及圖13中，表示圖10中的第2壓花加工部（ emboss-formed portion) 4c 的實施例。 第5構造是根據前述修正點（6)所開發的，修改了 〇 口罩本體部2與耳掛部3(左側耳掛部3a及右側耳掛部 3b)的邊界部4 (左側邊界部4A及右側邊界部4B)的壓 花構造。 具體而言’如圖10所示’於口罩本體部2與左側耳 掛部3 a (右側耳掛部3 b )之間的左側邊界部4 A (右側邊 界部4 B ) ’接合口罩本體部2與左側耳掛部3 a用的複数 個第1壓花加工部4c是形成在左側邊界部4A (右側邊界 部4B)全部’並且又形成具有與第1壓花加工部4c不同 〇 形狀的複数個第2壓花加工部4d。 第1壓花加工部4c及第2壓花加工部4d是如圖11 所不’由具有凹凸形狀（non-even shape)的壓花輕（ emboss roller)進行凹状（concave)加工的部分。 第1壓花加工部4c具有提昇口罩本體部2與左側耳 掛部3a (右側耳掛部3b)的接合強度的功能。 又’第2壓花加工部4d除了 口罩本體部2與左側耳 掛部3a (右側耳掛部313)的接合機能之外，還具備有表 示可判別口罩1的上下方向的標示部的功能。第2壓花加 -27- 200934546 工部4d的標示形態可有各種的選擇。例如可使用藉由單 一的第2壓花加工部4d，表示關於口罩1的上下方向的資 訊的第1標示形態。又，也可使用藉由組合複数個第2壓 花加工部4d，表示關於口罩1的上下方向的資訊的第2標 示形態。作爲藉由第2壓花加工部4d所標示的資訊，可 適當使用可判別關於口罩1的上下方向的資訊的文字、記 號、花紋、圖案等。 Q 作爲第1標示形態’可使用例如圖12所示’在各第2 壓花加工部4d分別標示「向上箭頭」的標示形態。據此 ，可判別箭頭的前端就是口罩1的上側。 又，作爲第2標示形態，可使用例如圖13所示，在 第2壓花加工部4d從口罩1的上側至下側依序標示表示 順序「A」〜「E」的標示形態。此時’將表示第1的「A 」標示於配置在口罩1的上側的第2壓花加工部4d’將表 示最後的「E」標示於配置在口罩1的下側的第2壓花加 φ 工部4d。據此，可判別標示「A」的第2壓花加工部4d 側爲口罩1的上側，標示「E」的第2壓花加工部4d側爲 口罩的下側。 由於使用第5構造’戴用者可容易判別口罩1的上下 方向。又，由於接合用的壓花加工部可兼作爲標示部’所 以不需要設置新的標示部’可降低製造成本。又，也可在 第2壓花加工部4d標示例如人物等容易引起兒童興趣的 標示資訊。據此’尤其可提高戴用者爲兒童時對口罩的興 趣。 -28- 200934546 此外，雖是藉由口罩本體部2與耳掛部3 (左側耳掛 部3a、右側耳掛部3b )之間的邊界部4 (左側邊界部4a 、右側邊界部4B)的壓花構造來表示關於口罩丨的上下 方向的資訊，但在口罩本體部2或耳掛部3 (左側耳掛部 3a、右側耳掛部3b)的外表面除了邊界部4以外也可藉由 壓花構造或其他的標示構造（例如印字構造）來表示關於 口罩1的上下方向的資訊或藉由壓花構造或其他的標示構 φ 造（例如印字構造）取代邊界部4來表示關於口罩1的上 下方向的資訊。 (第6構造） 參閱圖14說明口罩1的第6構造。此外，圖14表示 說明口罩1的第6構造的圖。 第6構造是根據前述修正點（6)所開發，在口罩本 體部2的外表面具有裝飾用的附著構件。作爲附著構件， φ 典型上是使用可黏貼（paste)在口罩本體部2的外表面的 密封構件（seal element)。 具體而言，如圖14所不，在硬紙板（mount) S上配 置有可黏貼在口罩本體部2的外表面的附著構件S1〜S4 。附著構件S 1〜S4分別具有碎片狀的形狀。例如將附著 構件S1〜S4分別黏貼在口罩本體部2的外表面的適當位 置的話，則會形成口罩本體部2的外表面幾乎由附著部 S1〜S4完全覆蓋著。換言之，藉由適當地配置附著構件 S 1〜S4，則由附著構件S 1〜S4所形成的形狀會與口罩本 -29- 200934546 體部2的外表面的形狀大致一致。此外，附著構件S1〜 S4最好是具有戴用時，戴用者不會感受到窒息感的透氣 性（空氣透過性）。 藉由使用第6構造，戴用者爲兒童等的時候，可提昇 兒童對口罩的興趣。又，附著構件S1〜S4爲具有碎片狀 的形狀時，則會去思考附著構件S 1〜S4的適當的組合， 可具有知識教育（intellectual training)的功能。又，作 Q 爲附著構可使用兒童會產生興趣的標示之例如具有人物等 的標示的附著構件爲理想。此時，也可使用具有同一標示 的附著構件，也可使用具有不同標示的附著構件作爲附著 構件S1〜S4。或是將單一的標示分割成複數個部分標示 ，並使用具有各分割後的部分標示的複数個附著構件也可 。此時，藉由複数個附著構件適當的配置，組合各附著構 件的標示，形成單一的標示。藉由使用這樣的附著構件， 可提昇兒童等對口罩的興趣。 〇 參閱圖15說明兒童戴用著口罩1的狀態。此外，圖 15中，表示從側面觀看兒童戴著口罩1的狀態的圖。 如圖1 5所示，口罩1良好地貼合在兒童的顔。例如 ，將口罩本體部2的上端部側的橫寬設定的比下端部側的 橫寬短，使得口罩本體部2的上端部側與戴用者的鼻子更 容易面接觸。據此，可有效防止如兒童或臉小的人之鼻低 臉頰高的戴用者戴著口罩時，口罩從適當的戴用位置偏移 的情形。此外，提高在一般的大人的鼻子之處的貼合性時 ，可藉由使用至少放大具備前述第1構造的口罩1的形狀 -30- 200934546 的口罩來對應。 又，例如藉由將口罩本體部2的頂部，亦即緣部2c 的頂部配置在比口罩1的上下方向的中央部還下方的方式 ’可在口罩本體部2與戴用者的嘴之間確實形成嘴邊空間 。據此’可防止戴用者感覺到窒息等的不舒適感。 又’例如將左側耳掛部3 a的左側耳掛孔5 a及右側耳 掛部3b的右側耳掛孔5b配置在比連結口罩本體部2的緣 Φ 部以的上端部、與口罩本體部2和耳掛部3之間的邊界 線4的上端部的線還下方。據此，如兒童等或臉小的人， 昇子與耳朵間的上下方向的間隔（詳而言之是鼻根的上端 部與耳根的上端部間的上下方向的間隔）短的戴用者戴著 口罩時，可將口罩本體部2配置在適當的戴用位置。 又，例如在耳掛部3 (左側耳掛部3a及右側耳掛部 3b )設有複數個孔6。據此，將耳掛部3 (左側耳掛部 及右側耳掛部3b)掛在耳朵（左耳及右耳）之際，可防止 ❿戴用者感覺到耳朵的疼痛。更進—步，可使孔6的緣部的 纖維密度比其他地方的纖維密度更提高。據此，耳掛部3 (左側耳掛部3a及右側耳掛部3b )的恢復力變大，可防 止耳掛部3 (左側耳掛部3 a及右側耳掛部3 b )成爲伸長 狀態。 此外，本發明並不侷限於實施形態所說明的構成，可 有各種的應用或變形。 雖就具備第1〜第6構造的口罩i作了說明，但本發 明可做成具備有第丨〜第6構造之中至少一個構造的口罩 -31 - 200934546 雖是針對口罩戴用時成爲立體狀的立體口罩進行說明 ，但實施形態所說明的各構造，也可使用在平面狀態使用 的口罩。 雖是藉由熱熔接接合不同體的左側薄片部2a與右側 薄片部2b形成口罩本體部2，但形成口罩本體部2的方法 並不偈限於此。例如，可使用折疊1片薄片，在緣部2c φ 的地方熱熔接接合之後，沿著左側薄片部2a及右側薄片 部2b的外形形狀切斷的方式，形成口罩本體部2的方法 。又’接合方法可使用眾所周知的各種的接合方法。 又，雖是熱熔接接合不同體的左側薄片部2a與左側 耳掛部3a (右側薄片部2b與右側耳掛部3b )，但也可一 體形成左側薄片部2a與左側耳掛部3a (右側薄片部2b與 右側耳掛部3 b )。一體形成的話，左側薄片部2a的特性 與左側耳掛部3a的特性（右側薄片部2b的特性與右側耳 Φ 掛部3 b的特性）是形成不同爲理想。例如，形成左側耳 掛部3a比左側薄片部2a容易伸縮（右側耳掛部3b比右 側薄片部2b容易伸縮）。此時，可使用左側薄片部2a與 左側耳掛部3a之間的邊界線及邊界部作爲左側邊界線4a 及左側邊界部4A，且可使用右側薄片部2b與右側耳掛部 3 b之間的邊界線及邊界部作爲右側邊界線4 b及右側邊界 部4B。 本發明也可構成爲立體口罩。例如可構成爲「一種口 罩’具備有：由在緣部接合的左側薄片部及右側薄片部所 -32- 200934546 形成’覆蓋口鼻的口罩本體部；從前述口罩本體部的左側 延伸出’具有可掛在左耳的左側耳掛孔的左側耳掛部；以 及從前述口罩本體部的右側延伸出，具有可掛在右耳的右 側耳掛孔的右側耳掛部，前述口罩本體部在疊合前述左側 薄片部與前述右側薄片部的口罩折疊時成爲平面狀，在分 開述左側薄片部與前述右側薄片部的口罩戴用時成爲立 體狀的口罩’其特徵爲：前述左側耳掛部及右側耳掛部形 〇 成有複數個孔的口罩」。 可使用刀作爲在左側耳掛部及右側耳掛部形成孔的方 法’理想的是使用對左側耳掛部及右側耳掛部噴射噴水水 流或蒸汽噴流等的流體射流的方法。此時，使用噴水水流 或蒸汽噴流等的流體射流在左側耳掛部及右側耳掛部形成 孔之際，可使孔的緣部的至少一部分的纖維密度比其他地 方的纖維密度還高。據此，拉引左側耳掛部及右側耳掛部 時’由於孔朝拉引方向變形（延伸），因此左側耳掛部及 ® 右側耳掛部伸長’而提昇了舒適性。又，藉由纖維密度提 高的地方的彈性力（恢復力）的增大，使左側耳掛部及右 側耳掛部在伸長後可容易恢復到原來的狀態，所以可提昇 耐久性。 【圖式簡單說明】 〔圖1〕本實施形態的口罩1的口罩折疊時，從側面 觀看的圖。 〔圖2〕本實施形態的口罩1的口罩展開時，從戴用 -33- 200934546 者側觀看的圖° 〔圖3〕本實施形態的口罩1的口罩折疊時，從側面 觀看的側視圖，且是說明第1構造的圖。 〔圖4〕本實施形態的口罩1的口罩展開時，從戴用 者側觀看的圖，且是說明第1構造的圖。 〔圖5〕本實施形態的口罩1的口罩折疊時’從側面 觀看的圖，且是說明第2構造的圖。 φ 〔圖6〕本實施形態的口罩1的口罩展開時’從戴用 者側觀看的圖，且是說明第2構造的圖。 〔圖7〕本實施形態的口罩1的口罩折疊時’從側面 観看的圖，且是說明第3構造的圖。 〔圖8〕本實施形態的口罩1的口罩展開時’從戴用 者側觀看的圖，且是說明第3構造的圖。 〔圖9〕本實施形態的口罩1的口罩折疊時’從側面 觀看耳掛部3的圖，且是說明第4構造的圖。 Ο 〔圖ίο〕本實施形態的口罩1的口罩折疊時，從側面 觀看的圖，且是說明第5構造的圖。 〔圖1 1〕爲圖1 0的A — A線剖視圖。 〔圖12〕表示圖10中的第2壓花加工部4c的一實施 例的圖。 〔圖13〕表示圖1〇中的第2壓花加工部4c的其他實 施例的圖。 〔圖1 4〕爲說明本實施形態的口罩1的第6構造的圖 -34- 200934546 〔圖1 5〕是從側面觀看兒童戴著本實施形態的口罩1 的口罩戴用狀態的圖。 【主要元件符號說明】 1 : 口罩 2 : 口罩本體部 2a :左側薄片部 φ 2b :右側薄片部 2c :緣部 3 :耳掛部 3a :左側耳掛部 3b :右側耳掛部 4 :邊界部 4a :左側邊界線 4 b :右側邊界線 φ 4c:第1壓花加工部 4d:第2壓花加工部 5 :耳掛孔 5a :左側耳掛孔 5b :右側耳掛孔 6 :孔 6a :長軸 6b :短軸 7 :嘴邊空間 35-Specifically, the left earloop portion 3a and the right side (four) portion 3b are composed of crimp fibers having a fiber length of 44 mm or more. Further, a plurality of holes (openings) 6 are formed in the left earloop portion 3a and the right earloop portion 3b. The cross section of the hole 6 is an euiptic shape which forms two axes (l〇ng axis 6a and short axis (sh〇rt axis) 6b) having different lengths. Further, the cross section of the hole 6 is not limited to the elliptical shape', and various shapes such as a rhombic shape, a polygonal shape, a circular shape, and the like can be formed. This hole 6' is typically used to spray a water jet (high-pressure water) to the fiber web at the time of manufacture of spun-laced non-woven fabrics. After the fibers are interlaced, they are formed by spraying water (high-pressure water) on the surface of the fiber web. By using the water spray to form the holes 6, the fiber density at the edge of the hole 6 can be made higher than that of the other places. That is, the elastic force at the edge of the hole 6 (also referred to as "recovery power (recovery 200934546 force) j and "spring force") increases. Therefore, the left earloop portion 3a and the right earloop portion 3b which are stretched in order to wear the mask 1 can be easily restored to their original state. Further, as long as at least a portion of the edge of the hole 6 has a fiber density higher than that of the other portion. For example, the fiber density of a part of the edge of the hole 6 may be higher than the fiber density of the other part of the edge of the hole 6, or the fiber density of a part of the edge of the hole 6 may be larger than the hole φ. The fiber density of the place other than the edge of 6 may be high. At this time, it is preferable that the fiber density at the place where the short axis 6b of the hole 6 intersects and the place around it are high density. The construction of the spunlace nonwoven fabric has more specifically the following engineering. Card process: The fiber bundle after the opening is used to form a fiber web having an equal basis weight in the width direction. Water j et process: The high-pressure 〇 water flow is applied to the fiber web to interweave the fibers of the fiber web to improve the strength of the sheet. Hole-make water jet process: The interwoven sheet is passed over a structure having a water-permeable projection (net punched plate), at which time it is ejected from the projection The way of high pressure water flow 'forms holes in the sheet. Further, it is also possible to use a method of ejecting a high-pressure steam jet jet to replace a high-pressure water flow in a sheet forming hole, and to form a hole in the sheet. Dry process: removes moisture from the flakes. Shrink process • When the crimped fiber is formed of polypropylene/-22-200934546 modified polypropylene, the modified polypropylene starts to shrink at around 140 °C, but the polypropylene brocade does not shrink. Therefore, it will become a favorite like a coil. At this time, shrinkage occurs in the conveying direction and the width direction of the sheet. By the carding process and the water jetting process, a nonwoven fabric substrate in which fibers are aligned in parallel with the conveying direction is formed. Further, by the nozzle water spray project, a fluid jet (high pressure water stream or steam jet stream) is sprayed onto the nonwoven fabric substrate to form a hole in the nonwoven fabric substrate. That is, since the fibers constituting the nonwoven fabric substrate are pushed apart by the fluid jet, holes are formed in the nonwoven fabric substrate. At this time, the ejection position of the fluid jet (high-pressure water stream or steam jet) is fixed. However, since the nonwoven substrate is moved, a hole having an elliptical shape in cross section is formed. Accordingly, the fiber density at the edge of the hole becomes high. Further, by the shrinking process, the fibers of the place where the fiber density is high (the edge of the hole) are shrunk. Therefore, the elastic force (elastic force) of the edge of the hole becomes high. ^ In the fourth structure, in order to hang the left earloop portion 3a and the right earloop portion 3b in the left ear and the right ear, and pull the left earloop portion 3a and the right earloop portion 3b, it is as shown in FIG. As shown in the figure on the right, the holes 6 formed in the left ear hook portion 3 & and the right ear hook portion 3b are changed from the state of the two-point lock line to the solid line state. Accordingly, the left earloop portion 3a and the right earloop portion 3b are easily extended in the direction in which they are pulled (the horizontal direction in Fig. 9). By the deformation of the hole 6, the structure in which the left earloop portion 3a and the right earloop portion 3b are elongated can be reduced to the wearer when the left earloop portion 3a and the right earloop portion 31) are hung to the left ear and the right ear. The power of the ear. That is, it prevents the wearer from feeling the pain of the ear. -23- 200934546 Further, the fibers are concentrated to the edge of the hole 6, so that the fiber density at the edge of the hole 6 is higher than that at other places. According to this, the elastic force (restoring force or elastic force) of the left earloop portion 3a and the right earloop portion 3b becomes high. Therefore, even if the mask 1 is repeatedly used, the left earloop portion 3& and the right earloop portion 3b can be prevented from being stretched, and can be used for a long period of time (and durability is increased). Further, at least a part (preferably all) of the hole 6 is as shown in Fig. 9. When the mask is folded, the long axis 6a is formed in a manner parallel to the boundary line 4 between the mask body portion 2 and the ear hook portion 3. Ideal. For example, the hole 6 of the left earloop portion 3a has a long axis 6a formed parallel to the boundary line 4a between the mask body portion 2 and the left earloop portion 3a, and the long axis of the hole 6 of the right earloop portion 3b. 6a is formed in parallel with the boundary line 4b between the mask body portion 2 and the right ear hook portion 3b. At this time, the long axis 6a of the hole 6 may also be formed substantially parallel to the boundary line 4. In such a configuration, the earloop portion 3 (the left earloop portion 3a and the right earloop portion 3b) can be more easily expanded and contracted when a tensile force is applied. Also, when the pull force disappears, it is easier to return to the original state (recovery). Further, in the embodiment shown in Fig. 9, a plurality of holes 6 having a cross-sectional shape forming an elliptical shape are regularly arranged. However, the sectional shape or arrangement position of the hole 6 is not limited thereto. For example, a configuration in which a plurality of holes 6 are irregularly arranged, or a configuration in which a plurality of holes 6 having other cross-sectional shapes are arranged in a regular or irregular manner may be employed. Here, the performance evaluation (comfortability) and the durability of the mask having the left earloop portion 3a & the right earloop portion 3b of the present embodiment (the tension at the time of wearing 24 - 200934546) (tensile strength) and recovery property from extension (recovering property from extension). The order and results of this performance evaluation are described below. Moreover, the performance evaluation described below is based on the JIS L-1 096 method. (Preparation of sample) Using the same material as the left earloop portion 3 a and the right ear hook portion 3 b of the above configuration, three sheets of vertical 210 [mm], transverse 297 [mm], and basis weight Q [g/ Sample of m2]. Further, three samples each having a width of 50 [mm] and a length of 297 [mm] were collected from the longitudinal direction and the lateral direction of each sample. (Measurement and evaluation of tensile strength) In the measurement of tensile strength, the aforementioned samples of width 50 [mm] and length 297 [mm] were evaluated using a well-known constant-speed telescopic tensile testing machine. In the measurement, the interval between the gripping samples was set to 2 0 0 [mm], and the pulling speed was set to 200 [mm/min]. Then, the strength at the time of elongation of 50 φ % of each sample and the strength at 90% elongation were measured, and the average 値° of each sample was calculated. At this time, the strength at 50% elongation was set to 50% stress [N], and 90% was obtained. The strength at the time of elongation was set to 90% stress [N]. Further, the 〇5% stress is 1 [N] or less, and the 90% stress is 1 (N) or less, which satisfies the desired comfort. That is, it is evaluated as having the ear hook portion 3 (the left ear hook portion 3a) And the right ear hook 3b) does not cause ear pain when it is hung in the ear (left ear and right ear). (Measurement and evaluation of the elastic recovery rate) -25- 200934546 The measurement of the elongation recovery rate is utilized. The well-known fixed-speed telescopic tensile testing machine evaluates the aforementioned samples with a width of 50 [mm] and a length of 297 [mm]. The measurement is to set the interval between holding the sample to 200 [mm] and the pulling speed to 200. [mm/min]. Then, after recovering the elongation of 50% of each sample, the recovery ratio (recover ratio) at the same speed to return to the origin position, and the recovery at the same speed after 90% elongation The degree of recovery (proportion) at the time of the origin position is calculated as the average 値 of each sample of φ. At this time, the degree of recovery after elongation of 50% is set to 50% elongation recovery rate [%], and after 90% elongation Recovery degree is set to 90% elongation recovery rate [%] Further, the 50% elongation recovery rate is 70% or more, and the 90% elongation recovery rate is 60% or more, which satisfies the desired durability standard, that is, it is evaluated as the ear hook portion 3 (left ear hook portion 3) a and the right ear hook portion 3 b ) are not easily stretched. The evaluation results confirm that the reference and the durability standard 'to satisfy the desired comfort' will constitute the ear hook portion 3 (the left ear hook portion 3 a and the right ear hook portion) The fiber length of the stretchable fiber of 〇3b) is 44 [mm] or more, and it is effective to set the size of the hole 6 before shrinking to 10 to 50 mesh. When the fiber length of the stretchable fiber is less than 44 [mm] Even if the size of the hole 6 before contraction is increased, the stress applied to the ear will be larger than the reference 値. Also, if the size of the hole 6 is contracted larger than the size of the 50 mesh, the elongation recovery ratio is higher than the reference 値It is also greatly reduced. Also, if the size of the hole 6 before shrinking is smaller than that of the 1 inch mesh, it is close to the state in which the hole 6 is not formed, and the stress applied to the ear greatly exceeds the reference 値. -26- 200934546 (5th Structure) The fifth structure of the mask 1 will be described with reference to Figs. 10 to 13 . 10 is a view of the state in which the mask 1 is not folded (when the mask is folded) as viewed from the side. Further, 'in FIG. 11' is a cross-sectional view taken along line A-A of FIG. 10. Further, in FIGS. 12 and 13, it is shown in FIG. An embodiment of the second emboss-formed portion 4c. The fifth structure is developed according to the above-mentioned correction point (6), and the mask body 2 and the ear hook 3 are modified (left ear hook) The embossed structure of the boundary portion 4 (the left side boundary portion 4A and the right side boundary portion 4B) of the 3a and the right ear hook portion 3b). Specifically, as shown in FIG. 10, the left side boundary portion 4 A (right side boundary portion 4 B ) between the mask body portion 2 and the left ear hook portion 3 a (the right ear hook portion 3 b ) engages the mask body portion. 2, the plurality of first embossed portions 4c for the left ear hook portion 3a are formed on the left side boundary portion 4A (right side boundary portion 4B) and are formed to have a different shape from the first embossed portion 4c. A plurality of second embossed portions 4d. The first embossed portion 4c and the second embossed portion 4d are portions which are concave-processed by an emboss roller having a non-even shape as shown in Fig. 11 . The first embossed portion 4c has a function of increasing the joint strength between the mask body 2 and the left ear portion 3a (the right ear hook portion 3b). Further, the second embossed portion 4d has a function of indicating the pointing portion of the vertical direction of the mask 1 in addition to the function of the mask body 2 and the left ear portion 3a (the right ear hook portion 313). The second embossing plus -27- 200934546 There are various options for the 4d marking form of the Ministry of Industry. For example, the first indication form of the information on the vertical direction of the mask 1 can be used by the single second embossed portion 4d. Further, a second indication form in which information on the vertical direction of the mask 1 is displayed by combining a plurality of second embossed portions 4d may be used. As the information indicated by the second embossed portion 4d, characters, symbols, patterns, patterns, and the like which can discriminate information on the vertical direction of the mask 1 can be suitably used. As the first indication form, Q can be used, for example, as shown in Fig. 12, in which the "upward arrow" is indicated in each of the second embossed portions 4d. According to this, it can be discriminated that the front end of the arrow is the upper side of the mask 1. Further, as the second indication form, for example, as shown in Fig. 13, in the second embossed portion 4d, the indication forms indicating the order "A" to "E" are sequentially indicated from the upper side to the lower side of the mask 1. At this time, 'the first "A" is indicated on the second embossed portion 4d' disposed on the upper side of the mask 1, and the last "E" is indicated on the second embossing plus placed on the lower side of the mask 1. φ Ministry 4d. According to this, it is possible to determine that the second embossed portion 4d side marked "A" is the upper side of the mask 1, and the second embossed portion 4d side indicated by "E" is the lower side of the mask. The upper and lower directions of the mask 1 can be easily discriminated by using the fifth structure 'wearer'. Further, since the embossed portion for joining can also serve as the indicator portion, it is not necessary to provide a new indicator portion, which can reduce the manufacturing cost. Further, in the second embossing unit 4d, for example, a person or the like may be marked with information indicating that the child is likely to be interested. Accordingly, the interest in the mask is particularly enhanced when the wearer is a child. -28- 200934546 In addition, the boundary portion 4 (the left side boundary portion 4a and the right side boundary portion 4B) between the mask main body portion 2 and the ear hook portion 3 (the left ear hook portion 3a and the right ear hook portion 3b) The embossed structure indicates information on the vertical direction of the mask 丨, but the outer surface of the mask body 2 or the ear hook 3 (the left ear hook 3a and the right ear hook 3b) can be used in addition to the boundary portion 4 An embossed structure or other marking structure (for example, a printed structure) is used to indicate information about the vertical direction of the mask 1 or to replace the boundary portion 4 by an embossing structure or other marking structure (for example, a printing structure) to indicate the mask 1 Up and down direction information. (Sixth Structure) A sixth structure of the mask 1 will be described with reference to Fig. 14 . Further, Fig. 14 is a view showing a sixth structure of the mask 1. The sixth structure is developed according to the above-mentioned correction point (6), and has an attachment member for decoration on the outer surface of the mask body 2. As the attachment member, φ is typically a sealing member that can be applied to the outer surface of the mask body portion 2. Specifically, as shown in Fig. 14, the attachment members S1 to S4 which are adhered to the outer surface of the mask body 2 are disposed on the cardboard S. The attachment members S 1 to S4 each have a fragment shape. For example, when the adhering members S1 to S4 are respectively attached to the outer surface of the mask body 2, the outer surface of the mask body 2 is almost completely covered by the adhering portions S1 to S4. In other words, by appropriately arranging the attachment members S1 to S4, the shape formed by the attachment members S1 to S4 substantially coincides with the shape of the outer surface of the body portion 2 of the mask -29-200934546. Further, it is preferable that the adhering members S1 to S4 have air permeability (air permeability) in which the wearer does not feel a suffocating feeling when wearing. By using the sixth structure, when the wearer is a child or the like, the child's interest in the mask can be enhanced. Further, when the attachment members S1 to S4 have a chip shape, an appropriate combination of the attachment members S1 to S4 is considered, and the function of intellectual training can be provided. Further, it is preferable that Q is an attachment member having an indication that a child is interested in using an indication such as a person or the like. At this time, an attachment member having the same designation may be used, or an attachment member having a different indication may be used as the attachment members S1 to S4. Alternatively, the single mark may be divided into a plurality of partial marks, and a plurality of attached members having the divided portions may be used. At this time, by appropriately arranging a plurality of attachment members, the labels of the respective attachment members are combined to form a single indication. By using such an attachment member, interest in a mask such as a child can be enhanced.状态 Referring to Fig. 15, the state in which the child wears the mask 1 will be described. Further, Fig. 15 is a view showing a state in which the child wears the mask 1 as seen from the side. As shown in Fig. 15, the mask 1 fits nicely on the child's face. For example, the lateral width of the upper end portion side of the mask body portion 2 is set shorter than the lateral width of the lower end portion side, so that the upper end portion side of the mask body portion 2 is more easily brought into surface contact with the wearer's nose. According to this, it is possible to effectively prevent the mask from being displaced from the proper wearing position when the wearer who has a low cheek and a low nose, such as a child or a small face, wears a mask. Further, when the fit of the general adult's nose is improved, it is possible to use a mask that at least enlarges the shape of the mask 1 having the first structure -30-200934546. Further, for example, the top portion of the mask body portion 2, that is, the top portion of the edge portion 2c is disposed below the central portion of the mask 1 in the vertical direction, between the mask body portion 2 and the wearer's mouth. It does form the space around the mouth. According to this, the wearer can be prevented from feeling uncomfortable such as suffocation. Further, for example, the left earloop 5a of the left earloop portion 3a and the right earloop hole 5b of the right earloop portion 3b are disposed at an upper end portion than the edge Φ portion of the connection mask body portion 2, and the mask body portion. The line of the upper end portion of the boundary line 4 between the 2 and the ear hook portion 3 is also below. According to this, if the child or the like has a small face, the wearer wearing the upper and lower direction between the lifter and the ear (in detail, the interval between the upper end portion of the nose root and the upper end portion of the ear root) is short. When the mask is worn, the mask body 2 can be placed at an appropriate wearing position. Further, for example, a plurality of holes 6 are provided in the ear hook portion 3 (the left ear hook portion 3a and the right ear hook portion 3b). According to this, when the ear hook portion 3 (the left ear hook portion and the right ear hook portion 3b) is hung on the ears (the left ear and the right ear), the wearer can be prevented from feeling the pain of the ear. Further, the fiber density at the edge of the hole 6 can be increased more than the fiber density elsewhere. Accordingly, the restoring force of the earloop portion 3 (the left earloop portion 3a and the right earloop portion 3b) is increased, and the earloop portion 3 (the left earloop portion 3a and the right earloop portion 3b) can be prevented from being stretched. . Further, the present invention is not limited to the configuration described in the embodiment, and various applications or modifications are possible. Although the mask i having the first to sixth structures is described, the present invention can be made into a mask-31 - 200934546 having at least one of the second to sixth structures. The three-dimensional mask will be described. However, in the respective structures described in the embodiments, a mask used in a planar state may be used. The mask body portion 2 is formed by joining the left side sheet portion 2a and the right side sheet portion 2b of different bodies by heat fusion bonding, but the method of forming the mask body portion 2 is not limited thereto. For example, a method of forming the mask body portion 2 so as to be cut along the outer shape of the left side sheet portion 2a and the right side sheet portion 2b after the one edge sheet 2c φ is thermally welded and joined can be used. Further, the bonding method can use various well-known bonding methods. Further, although the left side sheet portion 2a and the left side ear hook portion 3a (the right side sheet portion 2b and the right side ear hook portion 3b) of the different bodies are thermally welded and joined, the left side sheet portion 2a and the left side ear hook portion 3a may be integrally formed (right side) The sheet portion 2b and the right ear hook portion 3 b). When formed integrally, it is preferable that the characteristics of the left side sheet portion 2a and the characteristics of the left side ear hook portion 3a (the characteristics of the right side sheet portion 2b and the characteristics of the right side ear Φ hanging portion 3b) are different. For example, the left ear portion 3a is formed to be more easily stretched than the left side sheet portion 2a (the right ear portion 3b is more easily stretched than the right side sheet portion 2b). At this time, the boundary line and the boundary portion between the left side sheet portion 2a and the left side ear hook portion 3a can be used as the left side boundary line 4a and the left side boundary portion 4A, and between the right side sheet portion 2b and the right side ear portion 3b can be used. The boundary line and the boundary portion serve as the right boundary line 4 b and the right boundary portion 4B. The invention may also be constructed as a three-dimensional mask. For example, the mask may be formed by a left side sheet portion and a right side sheet portion joined at the edge portion -32-200934546 to form a mask body portion covering the mouth and nose; and extending from the left side of the mask body portion a left ear hook portion that can be hung on the left earloop of the left ear; and a right ear hook portion that extends from the right side of the mask body portion and has a right ear hook hole that can be hung on the right ear, and the mask body portion is stacked When the mask of the left side sheet portion and the right side sheet portion is folded, the mask is formed into a planar shape, and the mask for forming the left side sheet portion and the right side sheet portion is a three-dimensional mask. The left side ear hook portion and the left side ear hook portion are characterized by The right ear hook is shaped into a mask with a plurality of holes. A knife can be used as a method of forming a hole in the left ear hook portion and the right ear hook portion. It is preferable to use a method of jetting a fluid jet such as a spray water flow or a steam jet to the left ear hook portion and the right ear hook portion. At this time, when a fluid jet such as a water spray or a steam jet is used to form a hole in the left ear hook portion and the right ear hook portion, the fiber density of at least a part of the edge portion of the hole can be made higher than that of other places. Accordingly, when the left ear hook portion and the right ear hook portion are pulled, the hole is deformed (extended) in the pulling direction, so that the left ear hook portion and the right side ear hook portion are elongated to improve comfort. Further, by increasing the elastic force (restoring force) in the place where the fiber density is increased, the left earloop portion and the right earloop portion can be easily restored to the original state after being extended, so that durability can be improved. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of the mask 1 of the present embodiment when it is folded. [Fig. 2] FIG. 2 is a side view of the mask 1 of the present embodiment when viewed from the side of the wearer-folder when the mask of the present embodiment is unfolded, and the side view of the mask 1 of the present embodiment is folded. It is a figure explaining the 1st structure. Fig. 4 is a view showing the first structure when the mask of the mask 1 of the present embodiment is unfolded as viewed from the wearer side. Fig. 5 is a view as seen from the side when the mask of the mask 1 of the present embodiment is folded, and is a view for explaining the second structure. φ [Fig. 6] A view from the wearer's side when the mask of the mask 1 of the present embodiment is unfolded, and is a view explaining the second structure. Fig. 7 is a view from the side when the mask of the mask 1 of the present embodiment is folded, and is a view for explaining the third structure. Fig. 8 is a view of the mask 1 of the present embodiment when viewed from the wearer's side when the mask is deployed, and is a view for explaining the third structure. Fig. 9 is a view showing the fourth structure when the mask of the mask 1 of the present embodiment is folded, when the earloop portion 3 is viewed from the side.图 [Fig. 1A] The mask of the mask 1 of the present embodiment is a view of the fifth structure when viewed from the side. [Fig. 1 1] is a cross-sectional view taken along line A - A of Fig. 10. Fig. 12 is a view showing an embodiment of the second embossed portion 4c in Fig. 10 . Fig. 13 is a view showing another embodiment of the second embossed portion 4c in Fig. 1A. [Fig. 14] Fig. 34 is a view showing a state in which the mask of the present embodiment is worn by a child, as seen from the side, in the state in which the sixth structure of the mask 1 of the present embodiment is described. [Description of main component symbols] 1 : Mask 2 : Mask body 2a : Left side sheet portion φ 2b : Right side sheet portion 2 c : Edge portion 3 : Ear hook portion 3 a : Left ear hook portion 3 b : Right ear hook portion 4 : Border portion 4a: left boundary line 4b: right boundary line φ 4c: first embossed portion 4d: second embossed portion 5: ear hook hole 5a: left ear hook hole 5b: right ear hook hole 6: hole 6a: Long axis 6b: short axis 7: mouth space 35-