JP3106864U - Disposable sanitary mask - Google Patents

Abstract

Disclosed is a disposable sanitary mask that improves the wearability and functionality further by improving the joining relationship with a wearing rubber string to a covering portion, and that is low in manufacturing cost and excellent in mass productivity.
The wearing rubber cord 3 is joined to the covering portion 2 at the time of ultrasonic welding in the extending direction in which the wearing rubber cord 3 extends from the covering portion 2, and the wearing rubber cord 3 is attached to the hook portion 5 of the ear portion 4 at the time of wearing. It is made to correspond to the line of the drawing-out direction A tied to the hook part of a back head. For this reason, when the disposable sanitary mask 1 is worn, the worn rubber string 3 is not pulled in an unreasonable direction, and a good bonded state is maintained for a long time. Thereby, the joining relationship with the wearing rubber part 3 with respect to the covering part 2 is improved, the wearability and functionality of the disposable sanitary mask 1 are further improved, and it is not necessary to add a new member, which is advantageous in terms of cost. .
[Selection] Figure 1

Description

  The present invention relates to a disposable sanitary mask made of non-woven fabric that is used to cover the mouths of persons concerned in a sanitary field where foreign substances such as dust and bacteria are excluded.

At hospitals, doctors, dentists, nurses, and food manufacturing factories have employees wear non-woven sanitary masks that cover their mouths. This type of sanitary mask, as a disposable mask, is formed by separately forming a cover part and an ear hook part that cover a mouth and a nostril part by punching out a stretchable urethane sheet or nonwoven fabric (for example, Patent Documents 1 and 2; 3).
JP-A-9-149945 JP-A-9-149946 JP 2003-93527 A

In Patent Document 1, the lateral stretchability of the mask is set to be lower than the stretchability of the ear hooking portion so that the mask covering portion does not adhere to the mouth even when the ear hooking portion is in tension. Thereby, even if a cover part is pulled right and left at the time of wearing of a mask, it will not feel breathlessness and the discomfort at the time of wearing will be reduced. In Patent Document 2, a cover part and an ear hook part are formed separately to make it difficult for the ear hook part to hang down and to prevent the masks that are overlapped after production from coming into close contact with each other. In patent document 3, the operation which attaches the inner cover of a double mask to an outer cover at the time of use is made unnecessary, and the double mask which is very easy to wear like a normal single mask is realized.
However, none of the masks of Patent Documents 1, 2, and 3 has been analyzed for the bonding relationship between the cover portion and the ear hook portion, the contact relationship between the cover portion and the face, and the wearability and functionality of the mask. There was still room for improvement.

  The present invention has been made in consideration of the above circumstances, and its purpose is to improve the wearability and functionality by improving the joining relationship of the worn rubber string to the cover part, and the production cost is reduced and the mass production is reduced. The object is to provide an excellent disposable sanitary mask.

(About claim 1)
The cup-shaped cover portion is provided by a nonwoven fabric formed by heat-sealing an aggregate of polypropylene fibers that are thermoplastics. The wearing rubber string is hung on the ear part or the back of the head, and is joined to the left and right outer parts of the cover part by ultrasonic welding. The joining region of the wearing rubber cord with respect to the covering portion forms a substantially circular spot portion that is 10-30% wider in the radial direction than the circular region having the wearing rubber cord as a diameter. The extending direction in which the wearing rubber cord extends from the cover portion is made to coincide with the line in the drawing direction in which the wearing rubber cord is tied to the hook portion of the ear portion or the back of the head. The peripheral part surrounded by the rubber band to be worn among the cover parts forms a business trip part spreading in a convex shape.

  Since the wearing rubber string is joined to the cover portion by ultrasonic welding, the welding work is completed in a short time, and the joining strength is high and there is no contamination and it is hygienic. The joining area of the wearing rubber cord to the covering portion forms a spot portion that is 10-30% wider than the circular area having the wearing rubber cord as a diameter, so that the wearing rubber cord is repeatedly pulled when worn because the joining strength is high. However, the initial good bonding state is maintained and stabilized. Further, since the spot portion is on the outer side of the covering portion, there is no possibility that the spot portion welded and solidified during wearing rubs the cheek portion of the face.

The extending direction of the rubber band that extends from the cover is aligned with the line in the pull-out direction where the rubber band is connected to the hook of the ear or the back of the head. No longer being pulled in the direction, and a good bonding state is maintained for a long time.
Outer part of the cover surrounded by the rubber band to be worn forms a business trip part that expands in a convex shape, so that the close-contact part of the cover part increases from the cheek to the temple and the coverage by the cover part is improved. To do. Together, these advantages can further improve the wearability and functionality of the disposable sanitary mask. In addition, it is not necessary to add any new member, the manufacturing cost is reduced, and it is inexpensive and excellent in mass productivity.

(About claim 2)
An aggregate of polypropylene microfibers is formed by heat fusion, and a melt-blown (MELT BLOWN) type nonwoven fabric is superimposed on the outside of the nonwoven fabric to impart bacterial filterability and particle filterability. For this reason, a disposable sanitary mask becomes a two-layer form which has bacteria filterability and particle | grain filterability, contamination | pollution resistance improves and it becomes more hygienic.

(Claim 3)
An outermost nonwoven fabric made of an aggregate of polypropylene short fibers is further superimposed on the outside of a meltblown type (MELT BLOWN) nonwoven fabric to provide waterproofness and water repellency. For this reason, the disposable sanitary mask becomes a three-layered form having waterproofness and water repellency, and the contamination resistance is further improved and the sanitary mask becomes remarkably hygienic.
(About claim 4)
The joining area | region of the wearing rubber string with respect to a cover part is an elliptical area | region which has a long diameter in the axis orthogonal direction of a wearing rubber string. For this reason, the cross-sectional area in the direction perpendicular to the axis of the worn rubber string in the joining region increases, and the joining strength with respect to the drawing direction increases.

  In consideration of the bonding relationship of the wearing rubber cord to the covering portion, the extending direction in which the wearing rubber cord extends from the covering portion is matched with the line in the pulling direction where the wearing rubber cord is tied to the hook portion of the ear portion or the back of the head. . For this reason, the wearing rubber string is not pulled in an unreasonable direction from the covering portion at the time of wearing, and a good joined state is maintained for a long time, so that the wearability and functionality are further improved. Moreover, it is possible to reduce the manufacturing cost without adding a new member, and to easily mass-produce at a low cost.

A first embodiment of the present invention will be described with reference to FIGS.
In the disposable sanitary mask 1 shown in FIG. 1A, the cup-shaped cover portion 2 is composed of a nonwoven fabric 2a formed by heat-sealing an aggregate of polypropylene fibers that are thermoplastics. The front end portion of the cover portion 2 forms a heat fusion portion 2b oriented in the vertical direction, and when the disposable sanitary mask 1 is worn, a non-contact space is provided to the mouth and nostril portion so that the user does not feel breathless. I am doing so.
The wearing rubber string 3 is joined to the left and right outer portions of the cover portion 2 by ultrasonic welding. The ultrasonic welding is performed by pressing a welding rod (not shown) against both end portions 3 a of the wearing rubber string 3. As shown in FIG. 2, the joining region of the wearing rubber cord 3 to the covering portion 2 forms a substantially circular spot portion Sp that is 10-30% wider in the radial direction than the circular region having the wearing rubber cord 3 as the diameter D. doing.

In this case, assuming the average physique and the face size of the appearance, when the disposable sanitary mask 1 is worn, the direction in which the worn rubber cord 3 faces the hook 5 of the ear 4 from the mouth and nostril is defined as the pulling direction A. {See (a) in FIG. 1}. Under this condition, the extending direction B in which the wearing rubber cord 3 extends from the cover portion 2 is made to coincide with the line in the pulling direction A in which the wearing rubber cord 3 is tied to the hook portion 5 of the ear portion 4. . In this state, both end portions 3a of the wearing rubber cord 3 are joined to the cover portion 2 by ultrasonic welding. Moreover, the peripheral part enclosed with the rubber band 3 to wear among the cover parts 2 forms the business trip part 6 which spreads convexly.
The wearing rubber cord 3 is not limited to the hooking portion 5 of the ear portion 4, and as shown in FIG. In this case, the extending direction B of the wearing rubber cord 3 is matched with a line in the pulling direction A where the wearing rubber cord 3 is tied to a hooking portion (not shown) on the back of the head.

  In the above configuration, since the wearing rubber string 3 is joined to the cover portion 2 by ultrasonic welding, the welding work can be completed in a short time, and the joining strength is high and there is no contamination and it is hygienic. The joining region of the wearing rubber cord 3 with respect to the covering portion 2 forms a spot portion Sp that is 10-30% wider in the radial direction than the circular region having the wearing rubber cord 3 as the diameter D. Even if the hanging rubber string 3 is repeatedly pulled, the initial good bonded state is maintained and stabilized.

  Further, the extending direction B in which the wearing rubber cord 3 extends from the covering portion 2 is made to coincide with the line in the drawing direction A in which the wearing rubber cord 3 is tied to the hook portion 5 of the ear portion 4 or the hook portion of the back of the head. . For this reason, when the disposable sanitary mask 1 is worn, the worn rubber string 3 is not pulled in an unreasonable direction, and a good bonded state is maintained for a long time.

  Furthermore, since the portion surrounded by the wearing rubber strap 3 in the cover portion 2 forms a business trip portion 6 that extends in a convex shape, the close contact portion of the cover portion 2 increases from the cheek portion to the temple portion, and the cover portion The coverage by 2 is improved. Together, these advantages can further improve the wearability and functionality of the disposable sanitary mask 1. In addition, it is not necessary to add any new member, the manufacturing cost is reduced, and it is inexpensive and excellent in mass productivity.

  FIG. 3 shows a second embodiment of the present invention. In Example 2, in the cover part 2 shown in FIG. 3 (a), an aggregate of polypropylene ultrafine fibers is formed by heat fusion, and as shown in FIG. 3 (b), a melt blown (MELT BLOWN) type The nonwoven fabric 10 is superposed on the outside of the nonwoven fabric 2a to impart bacterial filterability and particle filterability. For this reason, the disposable sanitary mask 1 becomes a two-layered form having bacterial filterability and particle filterability, and the contamination resistance is improved, which makes it more sanitary. In this case, the worn rubber string 3 is joined to the meltblown nonwoven fabric 10 by ultrasonic welding.

FIG. 4 shows a third embodiment of the present invention. In Example 3, the outermost nonwoven fabric 11 made of an aggregate of polypropylene short fibers is further stacked on the outer side of the meltblown nonwoven fabric 10 shown in FIG. 4B in the cover portion 2 shown in FIG. Together, it provides waterproofness and water repellency. On the other hand, the joining area | region of the wearing rubber cord 3 with respect to the cover part 2 has become the ellipse area | region 12 which has a long diameter in the axial perpendicular direction F of the wearing rubber cord 3. FIG.
The disposable sanitary mask 1 is in a three-layer form having waterproofness and water repellency, and the contamination resistance is further improved, so that it becomes extremely sanitary. And since the joining area | region of the wearing rubber cord 3 with respect to the cover part 2 is the ellipse area | region 12, the cross-sectional area of the axial direction F of the wearing rubber cord 3 in a joining area | region increases, and the joining strength with respect to the drawing-out direction A increases. In this case, the worn rubber string 3 is joined to the outermost nonwoven fabric 11 by ultrasonic welding.

  FIG. 5 shows a fourth embodiment of the present invention. In Example 4, the thickness dimension t of the nonwoven fabric 2a in the cover part 2 is made comparatively large, and dustproofness is improved.

  FIG. 6 shows Embodiment 5 of the present invention. In Example 5, the left and right end portions of the cover portion 2 are formed of a thin porous nonwoven fabric 13. The joint 14 between the nonwoven fabric 2a and the porous nonwoven fabric 13 is heat-sealed with the overlapped overlapping portion 13a. Although the thin porous nonwoven fabric 13 is in a position corresponding to the cheek part of the face, it does not rub or steam the cheek part because it has good breathability and is soft.

  Although the disposable sanitary mask 1 is discarded after use, the disposable sanitary mask 1 may be used repeatedly in a light work sanitary field or personal use. Moreover, the structure which sets the joining area | region of the wear rubber string 3 with respect to the cover part 2 to the ellipse area | region 12 is applicable also when hanging the wear rubber string 3 on a back head.

(A) is a perspective view of the disposable sanitary mask which shows a wearing condition, (b) is a perspective view of the disposable sanitary mask which shows the case where a wearing rubber string is hung on a back head (Example 1). It is a perspective view of a disposable sanitary mask (Example 1). (A) is a perspective view of the disposable sanitary mask which shows a wearing condition, (b) is a longitudinal cross-sectional view which follows the CC line of (a) (Example 2). (A) is a perspective view of the disposable sanitary mask which shows a wearing condition, (b) is a longitudinal cross-sectional view which follows the EE line of (a) (Example 3). (Example 4) which is a perspective view of a disposable sanitary mask. (Example 5) which is a perspective view of a disposable sanitary mask.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Disposable sanitary mask 2 Cover part 2a Nonwoven fabric 3 Wearing rubber string 4 Ear part 5 Hook part 6 Business trip part 10 Melt blown (MELT BLOWN) type nonwoven fabric 11 Outermost nonwoven fabric 12 Elliptical area A Draw-out direction B Extend direction Sp Spot part

Claims (4)

A cup-shaped cover provided by a non-woven fabric formed by heat-sealing an aggregate of polypropylene fibers which are thermoplastics;
It is joined by ultrasonic welding to the left and right outer side parts of this cover part, and it is equipped with a wearing rubber string that hangs on the ear part and the back of the head,
The joining region of the wearing rubber cord to the covering portion forms a substantially circular spot portion that is 10-30% wider in the radial direction than the circular region having the wearing rubber cord as a diameter,
The extending direction in which the wearing rubber cord extends from the covering portion is matched with a line in the drawing direction in which the wearing rubber cord is tied to the hook portion of the ear portion or the back of the head,
A disposable sanitary mask characterized in that a peripheral portion surrounded by the worn rubber string in the covering portion extends to form a projecting portion extending in a convex shape.   The disposable hygiene according to claim 1, wherein an aggregate of polypropylene microfibers is formed by heat-sealing, and a melt-blown nonwoven fabric is superimposed on the outside of the nonwoven fabric to impart bacterial filterability and particle filterability. mask.   The disposable sanitary mask according to claim 2, wherein an outermost nonwoven fabric made of an aggregate of polypropylene short fibers is further superimposed on the outside of the meltblown nonwoven fabric to provide waterproofness and water repellency.   The disposable sanitary mask according to any one of claims 1 to 3, wherein a joining region of the wearing rubber cord to the covering portion is an elliptical region having a major axis in a direction perpendicular to the axis of the wearing rubber cord.

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