ES1268660U - REUSABLE HYGIENIC MASK (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Reusable hygienic mask characterized in that it comprises three layers of non-woven fabric, comprising: - A first layer or outer layer (1) is responsible for providing the mask with structural rigidity, which is made of polypropylene with a grammage of 80 g/m2 and manufactured through a joining process by spinning. - A second or intermediate layer (3) is responsible for providing the mask with a bacterial filtration of 99.9%, thanks to its electrostatic charge, made of polypropylene with a grammage of 25 gr/m2 and is manufactured using a melt blown process. - A third layer or inner layer (4) is responsible for providing softness and comfort in contact with the skin, as well as perspiration, it is made of polypropylene with a grammage of 25gr/m2 and manufactured using a spunbond process. - Some fastening rubbers (5) on the ears attached to the structure of the mask by means of ultrasound sealing. Where, - Between the first layer (1) or outer layer and the second layer (3 or intermediate layer, there is a deformable band (2) for clipping in the nose. - The three layers are joined by means of a series of joining points (6) and (7) formed by heat sealing with ultrasound. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

REUSABLE HYGIENIC MASK

OBJECT OF THE INVENTION

It is the object of the present invention, as the title of the invention establishes, a reusable hygienic mask that can withstand a multiplicity of washes without significant deterioration of its protective properties, with a bacterial filtration of 99.9% in its original state, and complying with the UNE 0065: 2020 standard with 90% bacterial filtration in its twentieth wash.

The present invention is characterized by the special design and configuration of each and every one of the elements that make it up, their nature, their relative arrangement and the manufacturing procedure used, achieving a mask with 99.9% bacterial filtration protection.

Therefore, the present invention is circumscribed within the scope of reusable hygienic masks.

BACKGROUND OF THE INVENTION

The masks are devices designed to protect the wearer from the inhalation of airborne bacteria, said bacteria and eukaryotic cells are the main vector for the transmission of microorganisms, such as viruses, as well as water droplets, and said mask offers real and highly effective protection both against bacteria, as well as against droplets, thanks to its water-repellent capacity. These masks protect both the wearer and the interlocutor, significantly reducing the probability of contracting diseases due to microorganisms that flow through the aerosols of any space.

In general, hygienic masks are for single use and those reusable made of fabric present different problems, on the one hand they lack sufficient structural rigidity, they lack a correct facial seal and in the vast majority of cases they do not present sufficient bacterial leakage from the 90% that guarantees a high level of safety against pathogens, in addition, after several washes, they do not offer the softness or comfort required for contact with the skin. These masks also do not have a capacity Hypophobic that prevents the passage of aerosols generated when coughing, speaking or breathing, these droplets of water being an important vector for the transmission of microorganisms.

Furthermore, hygienic cloth masks lack a design to ensure a face seal equivalent to that of FFP2 masks.

Therefore, it is the object of the present invention to develop a mask that has sufficient structural rigidity, with a highly efficient facial seal, with a high bacterial filtration capacity (99.9%), and all this offering a pleasant sensation of softness and comfort in contact with the facial skin, in addition to having a high water-repellent capacity, developing a mask like the one described below and is included in its essentiality in the first claim.

DESCRIPTION OF THE INVENTION

The object of the present invention is a reusable hygienic mask that comprises three layers of non-woven fabric, that is, of a projected fabric, where:

- The first layer or outer layer is in charge of providing the mask with structural rigidity, it is made of polypropylene (spunbound) with a grammage of 80 g / m2 and manufactured through a spun bonding process which is a process which combines the fibers with web formation by placing the bonding device in line with the twist.

- The second or intermediate layer is responsible for providing the mask with a high bacterial filtration of 99.9%. Said layer is made of polypropylene with a grammage of 25 g / m2 and is manufactured by means of a melt blown process. This layer achieves its very high percentage of bacterial filtration thanks to the fact that it is capable of retaining an electrostatic charge inside, it is the material (Meltblown).

- The third layer or inner layer is responsible for providing softness and comfort in contact with the skin, as well as perspiration, it is made of polypropylene (Spundbound) with a grammage of 25g / m2 and manufactured through a spun bonding process .

Between the first layer or outer layer and the second layer or intermediate layer a deformable band is arranged for clipping in the nose, so that a better adaptability and adjustment to the face, leaving fewer empty spaces for the passage of possible aerosols.

The layers, once arranged one on top of the other and interposed the band for the clipping of the nose, are joined by sealing with ultrasound with a first roller that marks the shape of the mask, later the fastening rubbers are welded on the ears also by means of sealed with ultrasound.

The union of the different layers of the mask takes place both on the perimeter and in the interior zone, defining internal joining bands in order to provide the different layers with sufficient structural and positional stability.

Another characteristic of the mask object of the invention is its face seal. This mask has exactly the same format as an FFP2 mask, since FFP2 mask production lines are used for its manufacture, having therefore passed the Air Leakage into the Interior (TILS) and holding comfort tests with respect to to mobility. A normal hygienic mask does not meet these requirements, since these tests are not carried out, and therefore the aerosols through which the microorganisms are transported can easily enter through the sides of the mask since it is not properly sealed to the face of the person.

The mask object of the invention has a breathability of 32 Pa / Cm2, which is practically double the breathability of a FFP2 mask, which is much lower, normally around 60 Pa / Cm2.

Thanks to the materials used, their nature, the relative arrangement and the final form of union, a reusable hygienic mask is achieved, which can withstand up to 20 washes, in which the mask offers protection against microorganisms such as bacteria with a level of 99, 9% bacterial filtration efficiency.

All technical and scientific elements used herein have the meaning commonly understood by one of ordinary skill in the art to which this invention belongs. Methods and materials similar or equivalent to those described herein can be used in the practice of the present invention.

Throughout the description and the claims the word "comprises" and its variants are not intended to exclude other technical characteristics, additives, components or steps. skilled in the art, other objects, advantages and characteristics of the invention will emerge in part from the description and in part from the practice of the invention.

EXPLANATION OF THE FIGURES

To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization of the same, it is attached as an integral part of said description, two real images with illustrative and non-limiting character, where the following has been represented:

In figure 1, we can see a representation of the mask in perspective.

In figure 2, we can see a second representation of the mask folded and with some cuts, to see the three fabrics that characterize its interior.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the images, a preferred embodiment of the proposed invention is described below.

In image 1 we can see that the reusable hygienic mask is composed of a first layer or outer layer (1) made of polypropylene with a grammage of 80g / m2 in charge of providing the mask with structural rigidity and manufactured through a process of joining by spinning.

Next, we find a second layer or intermediate layer (3) that is made of polypropylene with a grammage of 25g / m2 in charge of performing bacterial filtration thanks to an electrostatic charge and manufactured by means of a melt-blowing process.

Between the first layer (1) and the second layer (3) there is a metal band covered by deformable PVC for clipping (2) (the two, not the four, please look at the image) that adjusts to the contour of the nose in order to leave as little space as possible to guarantee the non-circulation of aerosols.

Finally, there is a third layer or inner layer (4) that is made of polypropylene with a grammage of 25g / m2 in charge of providing softness and comfort in addition to breathability, it is manufactured through a spun bonding process.

The three layers are joined by means of a series of welding points, finding first joining points (6) that are arranged on the outer perimeter of the three superimposed layers, being carried out by means of ultrasound sealing.

We also find other junction points (7), formed by inner bands that run through the area of the mask surface from the side edges towards the center of it, leaving from the welding point (8) of the elastic rubber band. of the ears, to guarantee the non-deformation of the mask, as this band is the one that receives the greatest internal stresses.

On the three layers sealed by ultrasound, elastic bands (5) are fixed to hold onto the ears, said union being made by sealing with ultrasound.

Having sufficiently described the nature of the present invention, as well as the way of putting it into practice, it is stated that, within its essentiality, it may be carried out in other forms of manufacture that differ in detail from that indicated by way of example. , and to which the protection sought will also be achieved, provided that it does not alter, change or modify its fundamental principle.

Claims (2)

1. - Reusable hygienic mask characterized in that it comprises three layers of non-woven fabric, comprising: - A first layer or outer layer (1) is responsible for providing the mask with structural rigidity, which is made of polypropylene with a grammage of 80 g / m2 and manufactured by means of a spun bonding process. - A second layer or intermediate layer (3) is responsible for providing the mask with a bacterial filtration of 99.9%, thanks to its electrostatic charge, made of polypropylene with a grammage of 25 gr / m2 and is manufactured using a melt blowing process. - A third layer or inner layer (4) is responsible for providing softness and comfort in contact with the skin, as well as breathability, it is made of polypropylene with a grammage of 25gr / m2 and manufactured through a spun bonding process . - Some fastening rubbers (5) on the ears attached to the structure of the mask by means of ultrasound sealing. Where, - Between the first layer (1) or outer layer and the second layer (3 or intermediate layer, a deformable band (2) is arranged for clipping in the nose. - The three layers are joined by means of a series of joining points (6) and (7) formed by heat sealing with ultrasound. 2. - Reusable hygienic mask according to claim 1 characterized by the union of the 3 different layers and the sealing points of this. These points are described below: - Junction points (6) that are arranged on the outer perimeter of the three superimposed layers formed by sealing with ultrasound. - Joining points (7) arranged in the form of inner bands that run through the inner area of the mask surface from the side edges towards the center of the mask.