KR200484382Y1 - Mask for Clean Room - Google Patents

Abstract

According to the present invention, there is provided a mask for a clean room which is worn to prevent contamination of the clean environment due to secretions scattered from the mouth and nose in an environment requiring cleanliness. The mask 1 for a clean room according to the present invention is formed to have a size covering a mouth and a nose of a wearer and has a filter sheet 10 for blocking scattering of secretions from the wearer to the outside; The filter sheet 10 is inserted between the filter sheets 10 and covers the surface of the filter sheet 10 and covers the surface of the filter sheet 10. 21; < / RTI > The main body sheet 20 in a state in which the filter sheet 10 is inserted is folded inward along the line dividing the upper face 31 and the central face 32 and the lower face 33 Along the inclined line connecting the four corners of the main body sheet 20 at the left and right center positions of the upper side 32a and the lower side 32b of the center face 32, Four folded portions 30 formed symmetrically by four inclined folding lines 35 which fold the folded portion 31 and a part of the lower surface 33 outwardly; And an earring strap (40) provided at a closing end (22) of both side ends of the main body sheet (20). The mask (1) for a clean room of the present invention is capable of appropriately blocking scattering of secretions from a wearer, The feeling can be alleviated.

Description

Mask for Clean Room}

The present invention relates to a mask, and more particularly to a mask for a clean room to be worn to prevent contamination of the clean environment due to secretions scattered from the mouth and nose in an environment requiring cleanliness.

The masks are developed with a wide variety of functions and structures depending on the purpose of use. The most commonly used masks in daily life include 'a warm mask' for keeping warm and a 'dustproof' for preventing pollutants such as dust from entering the respiratory tract Mask 'is representative.

As a mask for another use, for example, it is difficult to achieve a desired purpose when a workpiece (for example, a semiconductor integrated circuit or the like) is contaminated from the outside, such as a clean room in a semiconductor manufacturing process, There is a mask for a clean room to be worn by workers in order to prevent contamination of the clean environment in an environment where problems such as deterioration of product quality occur, that is, in an environment in which the working environment must be maintained in a clean state.

Conventional masks relating to masks for cleanrooms include "mask" of Korean Patent No. 10-0518114, "sanitary mask" of Korean Patent No. 10-1051281, and "disposable dust mask" of Korean Utility Model Registration No. 20-0433854 .

Generally, unlike the antifreeze mask or the dustproof mask, the clean room mask is most often used after being washed and used for about 1-3 times without washing, for example. Therefore, the mask for a clean room can appropriately block scattering of secretions (e.g., saliva) secreted from the wearer's mouth and nose, but also requires a low manufacturing cost.

In addition, one of the inconveniences encountered when using a mask for a clean room is excessive filter performance so that the secretions secreted from the wearer's mouth and nose are not scattered to the outside, so that the wearing mask obstructs the flow of air accompanied by breathing This makes it possible for the wearer to feel uncomfortable breathing during the work. As a result, the operator sometimes avoids wearing the mask.

Therefore, the cleanroom mask needs to be able to adequately prevent scattering of secretion from the wearer to the outside, but it is also necessary to make the wearer feel less uncomfortable to wear. However, the conventional mask for a clean room is not satisfactory in terms of wearing comfort Respectively.

The object of the present invention is to provide a mask for a clean room which can prevent contamination of the clean environment by appropriately shielding secretions scattered from the wearer's mouth and nose as well as reducing the inconvenience that the wearer may feel wearing and breathing .

According to the present invention, a mask for a clean room is provided.

The mask for a clean room according to the present invention includes a filter sheet, a main body sheet, a folded portion, and an earring strap.

The filter sheet is formed to have a size covering the wearer's mouth and nose, and shields the discharge from the wearer from scattering to the outside.

The main body sheet is formed into a double layer, the filter sheet is inserted therebetween, and is formed to have a size covering the face under the eyes while surrounding the inserted filter sheet, .

Wherein the folded portion includes two horizontal folding lines folded inward along a line dividing the main body sheet in a state in which the filter sheet is inserted into an upper face, a central plane and a lower face in a horizontal direction, Four symmetrical vertically and horizontally symmetrically formed by four inclined folding lines in which the upper surface and a part of the lower surface are folded outwardly along the slanting line connecting the four corners of the main body sheet at the left and right center positions of the main body sheet .

The earring straps are provided at the end portions of both side ends of the main body sheet and hooked to the wearer's ear.

As the mesh fabric of the main body sheet, a mesh fabric having a mesh of 80 mesh to 100 mesh, for example, may be applied.

The mask according to the present invention may further include an adjustment ring for adjusting the size of a part of the ear which is inserted into the earlobe by moving the two earlobes of the earlobe in the left and right direction along the earlobe of the earlobe.

The mask for a clean room according to the present invention is characterized in that the filter sheet is inserted between the two main body sheets and the main body sheet in which the filter sheet is inserted is folded along the folding lines to form the folded portions of the double folds, As a mask having a simple structure with an earring strap, it is very useful as a mask for a clean room mainly used for disposable use because the manufacturing cost is low.

The mask for a clean room according to the present invention is characterized in that the filter sheet for preventing the secretion of the wearer from scattering is large enough to cover the wearer's mouth and nose, Therefore, when the mask of the present invention is worn, scattering of the secretion can be appropriately blocked, and the inconvenience caused by the wearing of the mask can be reduced and the wearing comfort can be improved.

The mask for a clean room according to the present invention can be worn by adjusting the earring strap by moving the adjusting ring to a proper position of the earring strap so as to improve the inconvenience of wearing which can be caused by wearing an incorrect size mask can do.

1 is a perspective view of an exemplary mask according to the present invention;
2 is a perspective view of an exemplary mask according to the present invention;
3 is a cross-sectional view of an exemplary mask according to the present invention;
FIG. 4 is a perspective view of an exemplary mask according to the present invention in a folded state; FIG.
5 is a schematic view of a process of manufacturing an exemplary mask according to the present invention;

Hereinafter, a mask for a clean room according to the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are merely illustrative of the mask according to the present invention, and the present invention is not limited thereto.

The mask according to the present invention is a mask for preventing a clean environment from being contaminated due to a secretion secreted from a mouth and a nose of a worker by being worn by a worker in a clean environment requiring maintenance of a clean state due to the nature of work, Basically, it is a disposable mask to be used and discarded from one time to several times without washing.

1 to 5, the mask 1 of the present invention includes a filter sheet 10, a main body sheet 20, a folded portion 30, and an earring strap 40.

The filter sheet 10 is a filter for appropriately blocking scattering (discharging) of excretion (contaminants such as saliva that can contaminate the clean environment) from the wearer's mouth and nose to the outside.

The filter sheet 10 is not particularly limited as long as it is a sheet-like filter capable of filtering the secretion from the wearer to the outside to an appropriate degree, and a filter having a filtering performance meeting the degree of cleanliness required in the corresponding clean room is appropriately In general, the filter sheet 10 having better filtering performance can be applied as the degree of cleanliness required in a clean room is higher.

For example, as the filter sheet 10, various nonwoven filters such as Tyvek (trademark) of DuPont, which is widely used for producing a dustproof mask and a dustproof mask, can be appropriately applied to the present invention.

The filter sheet 10 is formed to a size large enough to cover the wearer's mouth and nose. For example, as shown in FIG. 5A, the filter sheet 10 can be applied to a circular nonwoven fabric sheet having a size of about 13 cm in diameter when expanded, and the size of the filter sheet 10 can be adjusted It is possible to appropriately select it according to the face size of the operator.

The main body sheet 20 is an outer sheet which forms the overall contour of the mask 1 according to the present invention. As shown in Fig. 3, the main body sheet 20 is formed in two layers, and the above-described filter sheet 10 is inserted between the two main body sheets 20 and positioned in the center. The body sheet 20 is formed to a size enough to cover the face under the wearer's eyes while completely surrounding the inserted filter sheet 10.

As shown in Fig. 5A, the main body sheet 20 in the unfolded state can be formed into a two-ply rectangular shape having, for example, a length of about 25 cm and a length of about 14 cm, Can be appropriately selected in accordance with the face size of the wearer.

The two-ply main body sheet 20 is obtained, for example, by folding a sheet having a length of 25 cm and a length of 29 cm (14 cm 2 + 1 cm) horizontally in half, inserting the filter sheet 10 between two ply, The open top can be sewn, for example, to be sealed, and both open ends as described below can be formed by, for example, welding with a high-frequency welding apparatus or the like.

At this time, the shape holding wire 24 can be inserted into the fitting end 23 by forming the fitting end 23 on the upper side of the upper surface of the main body sheet 20 by folding inward the upper end of the main body sheet 20 and sewing. The shape retaining wire 24 functions to partially support the center portion of the mask 1 of the present invention in a forward convex shape and to prevent the wearing mask from hanging down on the nose.

In the mask 1 of the present invention, the main body sheet 20 is formed of a mesh fabric 21. Since the main body sheet 20 is formed of the mesh fabric 21, the airflow generated by the wearer's breathing (air) flows through the main body sheet 20 inside and outside the main body sheet 20, The disturbance is mitigated.

As the mesh fabric 21, the filter sheet 10 is held at a predetermined position (a position covering the mouth and nose) so as not to deteriorate the filtering action of the filter sheet 10, It is not limited to a mesh fabric that can be smoothly vented.

According to the various tests of the present inventors, when the main body sheet 20 is formed of the mesh fabric 21 having a mesh size of about 80 mesh to 100 mesh, the above conditions are particularly satisfied. At this time, when the mesh size of the mesh fabric 21 is too large to be less than 80 mesh, scattering of the secretion may be somewhat insufficient when the resultant mask is worn. When the mesh size exceeds 100 mesh and the mesh size is excessively small, Improved wearing comfort (improved breathing discomfort) may be somewhat ineffective.

2 and 3, the mask 1 according to the present invention has a structure in which the secretion discharged from the wearer's mouth and nose is appropriately filtered by the filter sheet 10, The associated air is made to flow smoothly through the mesh fabric 21 and the filter action on the secretions is mainly made up by the filter sheet 10 and the main body sheet 20 of the mesh fabric 21 is sandwiched between the filter sheet 10 Of the wearer's mouth and nose is positioned at the position of the mouth and nose of the wearer while mitigating the obstruction of air flow due to wear of the mask.

The folded portion 30 is a portion of the main body sheet 20 in which the filter sheet 10 is inserted is folded along the folding lines 34 and 35 to be described later.

The four vertically symmetrical folded portions 30 shown in Fig. 1 are formed by two horizontal folding lines 34 and four oblique folding lines 35, as illustrated in Fig.

The two horizontal folding lines 34 are formed in such a manner that the main body sheet 20 in which the filter sheet 10 is inserted can be divided into a top surface 31 and a central surface 32, Is a folded line folded inward along a horizontal line that is divided into three in the lateral direction by the surface (33).

The four inclined folding lines 35 are formed on the body sheet 20 at the left and right center positions O of the upper side 32a and the lower side 32b of the center face 32 as shown in Figs. And a part of the upper surface 31 and the lower surface 33 is folded outwardly along the slanting line connecting the upper, lower, left, and right four corners of the lower surface 33. [

The main body sheet 20 and the filter sheet 10 between the main body sheet 20 and the filter sheet 10 are folded inward along the four upper and lower folding lines 34 and then folded back along the four inclined folding lines 35, Four folding portions 30 are formed symmetrically on the upper, lower, left, and right sides.

As shown in FIG. 5D, both sides of the overlapped main body sheet 20 can be welded together using, for example, a well-known high frequency welding apparatus in a state in which the main body sheet 20 is folded with the four folded portions 30, (25), the overall shape of the mask 1 according to the present invention is completed.

The mask 1 according to the present invention is a mask 1 in which the filter sheet 10 inserted into the main body sheet 20 does not inadvertently move and remains in the correct position due to the action of the folded portions 30 of the double wrinkles, The central portion forms a forward convex shape, so that it is not only easy to wear but also feels good to wear.

The main body sheet 20 folded by the folded portion 30 can be folded in half along the left and right longitudinal center lines L as shown in Fig. 4, and the mask 1 of the present invention is folded in half in this manner Pack in the state.

When the mesh fabric 21 of the main body sheet 20 is made of a mesh fabric of a characteristic such as 'nylon', as shown in FIG. 4, when heat is properly applied to the iron in the folded state, The corrugations are formed in a state in which fold lines 34 and 35 of fold lines are folded and the corrugations formed once are not spread well so that the central portion maintains the shape of the convex mask which is convex forward during use.

The earring strap 40 is a conventional strap for attaching the mask to the ear as shown in Fig. 5E. The earring strap 40 is folded inward slightly to the both ends of the welded body sheet 20, For example, an earring strap 40 made of an elastic cord can be inserted and knotted through the finishing end 22. Of course, the earring straps 40 may be provided on the main body sheet 20 by folding and sewing both ends of the main body sheet 20 after padding the earring straps 40 on both side ends thereof.

The mask 1 of the present invention may further include an adjustment ring 41. A pair of earring straps 40 are passed through an elastic adjustment ring 41 formed by molding plastic synthetic resin into a tubular shape so that the earring strap 40 is inserted into the adjustment ring 41 so as to maintain a tight tightness, The adjustment ring 41 can be provided on the earring strap 40. [

The wearer can adjust the size of the ring formed by the earring strap 40 between the adjustment ring 41 and the seat body 20 by moving the adjustment ring 41 to the proper position along the earring strap 40 So that the wearer can adjust the size of the earring strap 40 of the portion of the wearer's ears that matches the face of the wearer.

1: mask according to the present invention 10: filter sheet
20: main body sheet 21: mesh fabric
22: Finishing end 23:
24: shape retaining wire 30: folded portion
31: upper surface 32: center surface
32a: Upper side of center plane 32b: Upper side of center plane
33: lower surface 34: horizontal fold line
35: inclined fold line 40: earring strap
41: Adjusting ring

Claims (3)

A filter sheet 10 formed to a size covering the mouth and nose of the wearer and blocking scattering of secretions from the wearer to the outside;
The filter sheet 10 is inserted between the filter sheets 10 and covers the surface of the filter sheet 10 and covers the surface of the filter sheet 10. 21; < / RTI >
The main body sheet 20 in the state in which the filter sheet 10 is inserted is folded inward along the line dividing the upper face 31 and the central face 32 and the lower face 33 Along the inclined line connecting the four corners of the main body sheet 20 at the left and right center positions of the upper side 32a and the lower side 32b of the center face 32, Four folded portions 30 formed symmetrically in four directions by four inclined folding lines 35 which fold the folded portion 31 and a part of the lower surface 33 outwardly; And
An earring strap 40 installed at the end edges 22 of both side ends of the main body sheet 20 and attached to the wearer's ear;
And a mask for cleaning the clean room. The method according to claim 1,
Wherein the mesh fabric (21) of the body sheet (20) is a mesh fabric having a mesh of 80 mesh to 100 mesh. 3. The method according to claim 1 or 2,
Further comprising an adjustment ring (41) for adjusting the size of a portion of the ear which is engaged by the two earrings of the earlobe (40) being moved in a lateral direction along the earlobe (40) For the mask.

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