TWM540661U - Three-dimensional mask - Google Patents

Description

Three-dimensional mask

The present invention relates to the construction of a mask, and more particularly to a three-dimensional mask having a preferred stiffness and capable of forming a three-dimensional structure.

The existing masks are mainly made up of a plurality of layers of non-woven fabrics. When the user wears the masks in front of the nose and mouth, the mask can be adjusted to have a shape protruding in the middle toward the front, and a gas is formed between the mask and the user's mouth. The room uses a multi-layered nonwoven to filter the dust in the air, allowing the user to breathe clean air.

Although the conventional mask can filter the air, since the non-woven fabric used in the general mask is soft, when the user breathes, the mask protruding toward the front in the middle is easily deformed by the user's inhalation, causing the air chamber to collapse and let the air chamber collapse. The user's mouth touches the mask, so that in addition to affecting the user's speech, the user's mouth touching the mask can also make the user feel uncomfortable.

Since the non-woven fabric of the existing mask is soft, the fiber material used is fine, and the fiber fineness is mostly between 1.0 and 3.0 dpf, so that it is easily deformed by breathing when worn by a user. In the case of inhalation, the part of the mask close to the mouth will attract to the mouth and contact the user's mouth, and will exhale when it is blown to the outside. In addition to affecting the user's speech, the user will feel uncomfortable. . To this end, the creator developed a three-dimensional mask with a fixed air chamber to solve the above problems.

In order to achieve the above object, the present invention provides a three-dimensional mask, which comprises an inner layer cloth, a support layer, a filter layer and an outer layer of cloth stacked from the inside to the outside, and an air chamber is formed inside the three-dimensional mask, wherein:

The support layer is made of non-woven fabric, and its single fiber has a fineness of 8 to 25 dpf and a basis weight of 50 to 100 g/m 2 , that is, a coarser fiber and a thicker non-woven fabric have higher rigidity. And stiffness.

Preferably, the filter layer of the present invention is a polypropylene meltblown nonwoven fabric or a microporous film.

Preferably, the filter layer of the present invention is a polytetrafluoroethylene film, a polyethylene film or a polypropylene film.

Further, the inner layer cloth described in the present invention is a cloth sheet which is not woven or woven.

Furthermore, the support layer of the present invention forms a plurality of air passages between the inner layer cloth and the filter layer.

Preferably, the inner layer cloth, the support layer, the filter layer and the outer layer of the outer layer are all protruded forward, and the air chamber is formed inside the inner layer cloth.

The new type is worn in front of the user's nose and mouth, and filters the dust and tiny particles in the air to allow the user to breathe clean air. Since the non-woven fabric of the support layer of the present invention has better stiffness, after the user wears, the middle of the three-dimensional mask can be opened forward and maintained in a shape by the support layer, and a non-deformed gas is formed in front of the user's mouth. In the room, when the user inhales, the air chamber will not collapse, and the three-dimensional mask will not touch the user's mouth, nor will it affect the user's speech.

In order to understand the technical features and practical effects of the present invention in detail, it can be implemented in accordance with the contents of the specification, and further described in detail with reference to the preferred embodiments shown in the drawings.

The first preferred embodiment is as shown in FIG. 1 to FIG. 4 . The present invention provides a three-dimensional mask 10 . The three-dimensional mask 10 includes an inner layer cloth 11 , a support layer 12 and a filter layer 13 which are stacked on each other from the inside to the outside. And an outer cloth 14, when the user wears the three-dimensional mask 10, an air chamber A is formed in front of the nose and mouth so that the three-dimensional mask 10 does not contact the user's mouth, wherein:

The inner layer cloth 11 is a hydrophilic polypropylene non-woven fabric by a hot pressing method, and the single fiber fineness is 2.0 denier (dpf) and the basis weight is 20 g/m 2 ; the support layer 12 is hot pressed. The polypropylene non-woven fabric has a single fiber fineness of 18 dpf and a basis weight of 65 g/m 2 , which is 3.25 times that of the inner non-woven fabric 11 , and the support layer 12 is made due to an increase in fiber fineness and weight. Compared with the inner layer cloth 11, which has better stiffness, and due to the larger gap formed by the thicker fibers of the support layer 12, a plurality of air is formed between the inner layer cloth 11 and the filter layer 13. The channel 121 has a relatively high porosity due to the coarse fibers of the support layer 12, and therefore has a good gas permeability; the filter layer 13 is a polytetrafluoroethylene microporous film which filters 0.26 micron particles. The filtration efficiency was 99.97%; the outer layer 14 was a water-repellent polypropylene non-woven fabric having a single fiber fineness of 2.0 denier and a basis weight of 20 g/m 2 .

Second preferred embodiment As shown in FIG. 5, the inner layer cloth 11 of the three-dimensional mask 10 is a moisture wicking type polyester fiber cloth having a basis weight of 150 gram/m2; the support layer 12 is made of heat. Pressed polypropylene non-woven fabric, the non-woven fabric has a single fiber fineness of 18 dpf and a basis weight of 65 g/m 2 ; the filter layer 13 is a polytetrafluoroethylene microporous film which filters the filtration efficiency of 0.26 micron particles. It is 99.97%; the outer layer 14 is a moisture wicking type polyester fiber cloth having a basis weight of 150 g/m 2 .

In addition to the first and second preferred embodiments described above, a non-woven fabric having a single fiber fineness of 18 dpf and a basis weight of 65 g/m 2 is used as the support layer 12, and other single fiber fineness media may be selected. As the support layer 12, a non-woven fabric having a basis weight of from 8 to 25 dpf and a basis weight of from 50 to 100 g/m 2 is used. The filter layer 13 is a microporous film other than a polytetrafluoroethylene microporous film, and may be a polyethylene film or a polypropylene film, or a polypropylene melt blown nonwoven fabric may be used as the filter layer 13.

When the present invention is used, it is worn in front of the nose and mouth, when the middle of the three-dimensional mask 10 protrudes forward, so that the inner layer cloth 11, the support layer 12, the filter layer 13, and the outer layer cloth 14 are all protruded forward. The gas chamber A is formed on the inner side of the inner layer cloth 11. Since the support layer 12 of the present invention has better stiffness, the present invention does not deform and can maintain the air chamber when the user inhales. In the shape of A, the mask body 10 does not touch the user's mouth and does not affect the user's speech.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All other equivalent changes or modifications which are not departing from the spirit of the present invention are included in the present invention. Within the scope of the patent application.

10‧‧‧Three-dimensional mask
11‧‧‧ Inner layer cloth
12‧‧‧Support layer
121‧‧‧Air passage
13‧‧‧Filter layer
14‧‧‧ outer cloth
A‧‧‧ air chamber

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a first preferred embodiment of the present invention. Figure 2 is an exploded view of the first preferred embodiment of the present invention. Figure 3 is a cross-sectional view of the first preferred embodiment of the present invention. Figure 4 is a perspective, cross-sectional view of the first preferred embodiment of the present invention. Figure 5 is a cross-sectional view showing a second preferred embodiment of the present invention.

10‧‧‧ mask body

11‧‧‧ Inner layer cloth

12‧‧‧Support layer

121‧‧‧Air passage

13‧‧‧Filter layer

14‧‧‧ outer cloth

Claims (6)

a three-dimensional mask comprising an inner layer cloth, a support layer, a filter layer and an outer layer of cloth stacked from the inside to the outside, wherein an air chamber is formed on the inner side of the three-dimensional mask, wherein: the support layer is made of non-woven fabric, The root fiber has a fineness of 8 to 25 dpf and a basis weight of 50 to 100 g/m 2 . The three-dimensional mask of claim 1, wherein the filter layer is a polypropylene meltblown nonwoven fabric or a microporous film. The three-dimensional mask of claim 1, wherein the filter layer is a polytetrafluoroethylene film, a polyethylene film or a polypropylene film. The three-dimensional mask of claim 1, wherein the inner layer cloth is a cloth sheet of non-woven or woven cloth. A three-dimensional mask according to any one of claims 1 to 4, wherein said support layer forms a plurality of air passages between said inner layer cloth and said filter layer. The three-dimensional mask of claim 5, wherein the inner layer cloth, the support layer, the filter layer, and the outer layer of the outer layer are all convex toward the front, and the air chamber is formed therein. The inside of the layer cloth.