RU2792637C1 - Disposable mask - Google Patents

Abstract

FIELD: protective equipment.

SUBSTANCE: design of respiratory protective equipment, disposable mask. Mask contains: a filter cloth having an upper side, a lower side, a right side and a left side; right and left elastic half loops for attaching a disposable mask behind the ears; along the upper and lower sides of the filter cloth there are drawstrings; the ends of the right and left half loops are installed inside said drawstrings; the length of the half-loops is chosen in such a way that in the non-deformed state they are located essentially within the perimeter of said filter cloth.

EFFECT: invention provides reduction of the external dimensions of the mask, as well as the possibility of safe disposal in case it enters the environment without disturbing the environment and causing harm to the fauna.

4 cl, 2 dwg

Description

FIELD OF TECHNOLOGY

The invention relates to the design of respiratory protective equipment, in particular to disposable masks.

BACKGROUND OF THE INVENTION

During surgical operations, as well as in a pandemic, medical masks are used to protect the respiratory organs from microorganisms, dust, viruses and other harmful air components.

Basically, the masks are rectangular in shape, see, for example, RF utility model patent RU 110937 U1, RF patent for invention RU 2740137 C1 and application CN106037087 A.

The mask is fastened with the help of ear loops, which are a circular cord, inside which there is a bundle of elastic fibers, dressed in a spunbond braid and welded to the fabric material, or in the form of free ends of the cord with the possibility of forming ear loops.

However, after the use of masks and during their disposal, there are problems associated with harm to the environment, since a discarded mask can be very dangerous for animals and birds that swallow the ear loops of the masks or become entangled in them and die, which is disclosed, for example, in the https articles: //russian.rt.com/inotv/2021-01-13/Euronews-spas ayushhiе-lyudej-zashhitnie-maski and https://rgazeta. by/ru/society/ispolzovannye-zashchitnye-maski-vredyat-zhivotnym-i-pticam-v-chein-opasnost.html?from=30.11.-0001&to=19.01.2021, in which the authors refer to the Royal Society for the Prevention of Cruelty UK Animals, urging people to cut or rip off ear loops from masks before disposal.

The prototype of the invention is a medical mask, including a multilayer filter cloth of a rectangular shape; one of the long edges of the canvas has a connecting seam; on the sides of the web there are channels formed by bending the web to the inside. Loops are installed inside the channels. The connecting seam on the long edge of the fabric is made on top of all layers; the channels are formed by a hem seam with an open cut; side barriers are formed by the free edge of the formed channels (RF patent for the invention No. 2748327).

When used, the user puts the mask on the wrong side of the face, covering the nose, mouth, chin, and strengthens it on the head with the help of loops that winds up behind the ears. If necessary, adjusts the position of the upper and/or lower edges of the mask by moving the sheet along the loops located in the channels so that the sheet fits in the best way to the surface of the face in the area of the nose, eye sockets, chin, cheeks.

The disadvantage of the prototype is that after use or disposal, the loops remain outside the rectangular contour, and protruding from it, can harm the surrounding fauna.

DISCLOSURE OF THE INVENTION

The objective of the invention is to create a design of a disposable mask, allowing the possibility of its safe disposal, which would cause less damage to the fauna, if it enters the environment.

The technical result achieved by the implementation of the invention is a reduction in external dimensions, as well as the possibility of safe disposal of the mask without disturbing the environment and causing harm to the fauna.

The task is solved due to the fact that the proposed disposable mask contains:

a filter cloth having an upper side, a lower side, a right side and a left side,

right and left elastic half loops for attaching a disposable mask behind the ears,

wherein,

along said upper and lower sides of the filter cloth there are drawstrings,

the ends of said right and left half-loops are installed inside said drawstrings,

the length of said half-loops is selected in such a way that in the undeformed state they are located essentially within the perimeter of said web.

The aforementioned filter cloth preferably has a rectangular shape.

The aforementioned right and left half loops are preferably interconnected to form a closed ring.

In the most preferred embodiment, the drawstrings are provided inside the filter web.

BRIEF DESCRIPTION OF THE FIGURES OF THE DRAWINGS

To explain the essence of the invention, the following graphic materials are used:

Fig. 1 Disposable mask before and after use, half-loops do not go beyond the contours of the filter cloth;

Fig. 2 Disposable mask in preparation for use, the half loops are stretched to form a positive gain, allowing the formation of behind-the-ear loops for attachment to the face.

IMPLEMENTATION OF THE INVENTION

As shown in FIG. 1 and 2, a disposable mask is made of a filter cloth 1 having a rectangular shape.

Any kind of existing filter materials can be used as the material of the filter cloth, for example, Spunbond and Meltblown. The filter cloth may consist of several layers of filter material.

The edges of the upper and lower sides 2, 3 of the filter cloth of the mask are equipped with upper and lower drawstrings 4, 5.

Drawstrings 4, 5 are a stitched or bent strip of filter material, forming a "trough" into which half-loops 6 of elastic material are pulled. Also, the drawstrings 4, 5 can be made inside the filter cloth of the mask.

The total length of the right and left half loops 6 is made smaller than the perimeter of the filter cloth.

The half-loops 6 are made wholly or partly of an elastic material and can be a round-section cord, inside which there is an elastic band, dressed in a spunbond braid.

Half-loops 6 pass inside drawstrings 4,5 with the possibility of movement under tension. The implementation of the drawstrings 4, 5 through is necessary to ensure the unhindered movement of the half loops 6.

In order to enable the donning of the mask, the elastic material of the half-loop or portions of the half-loop allows for a positive expansion when stretched, allowing the formation of behind-the-ear loops.

The dimensions of the filter cloth of the mask, as well as the required value of the positive increase in the length of the half-loops 6 and the value of the allowable force created when they are stretched, are determined during ergonomic study of the design and allow various options for the study of standard sizes.

The mask of the proposed design is used as follows:

Before use, the mask is in the storage position (Fig. 1), the half-loops do not go beyond the contours of the filter cloth of the mask, which reduces the external dimensions of the mask and allows more efficient use of useful packaging volumes.

If it is necessary to put on, from the side of the left and right sides 7, 8 of the filter cloth 1, the half-loops 6 (Fig. 2) are stretched by applying force F _rast to the parts of the half-loops 6 outside the drawstrings, with the formation of the left and right behind-the-ear loops 9, 10 and put on them to the user's ears. Due to the elastic properties of the material of the half-loops 6, the filter cloth 1 of the mask is pressed against the contour of the user's face.

When the mask is removed after the tensile force on the half-loops 6 is stopped, their length is reduced due to the properties of the elastic material, and the half-loops 6 independently return to the position along the contour of the filter cloth 1 of the mask.

Thus discarded after use and disposed of masks, having, according to the invention, half-loops 6 that do not go beyond the contours of the filter cloth of the mask, do not arouse interest among representatives of the fauna and do not pose a danger to the environment.

Claims (10)

1. A disposable mask containing: a filter cloth having an upper side, a lower side, a right side and a left side, right and left elastic half loops for attaching a disposable mask behind the ears, wherein along said upper and lower sides of the filter cloth there are drawstrings, the ends of said right and left half-loops are installed inside said drawstrings, the length of said half-loops is selected in such a way that in the undeformed state they are located essentially within the perimeter of said web. 2. The mask according to claim 1, wherein said filter web is rectangular in shape. 3. The mask according to claim 1, in which the ends of the aforementioned right and left half loops are interconnected to form a closed ring. 4. The mask according to claim 1, characterized in that the drawstrings are made inside the filter cloth.

Images