JP2003052846A - Mask using biodegradable cellulose as shape keeping core material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a gap with the projecting and recessed parts of a face to make effective filtration in putting on a mask by providing a biodegradable core material easily deformed by hand on the upper part of the mask, and to effectively use resources by discarding the used mask without classification into the mask and the core material so as to eliminate environmental pollution. SOLUTION: This mask body 2 is formed by fitting a shape keeping core material 1 around a portion striding a bridge for the purpose of making the mask closely adhering to the face to an upper part of the mask body formed of cotton gauze, non-woven cloth and air-permeable plastic, or paper, whereby in breathing, dust and pollen can be effectively separated. Even if the shape keeping core material 1 striding over the bridge which is a characteristic of the mask is discarded without classification because the raw material obtained by chemical processing natural fibers 100% to be given rigidity, no ash is left behind in the burnt ash.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention prevents fine particles such as dust and pollen in the air from entering and cleans the intake air. More specifically, it deforms along the surface curve of the face at the time of use to bring it into close contact. The present invention relates to a mask having a shape maintaining core material made of biodegradable fiber.

[0002]

2. Description of the Related Art In a conventional mask, an elastic member that straddles the nose bridge is attached to the mask main body in order to eliminate breathlessness when wearing the mask and to assist breathing. For example, there is known a mask which uses an elastic body as described in Japanese Patent Application Laid-Open No. 11-33132, and further applies an adhesive material to a portion contacting both outer sides of the nose to expand the nostril. In general, gauze and non-woven fabric are used to form the main body, and gauze and a microporous film (melt blow) are enclosed inside to filter outside air, and a cleaning agent that permeates a chemical solution into the filter medium is known. A shape-maintaining core material that straddles the nasal bridge is attached to the upper part of the mask to improve the filtering of exhaled air. On the other hand, most of these elastic members are wires covered with plastic, and plastic elastic members have come to be used nowadays, but there is no biodegradable material.

[0003]

By the way, the use of masks is increasing in general households not only during the epidemic of a cold but also due to the increase in the population of hay fever when cedar pollen occurs. With the development of hygienic ideas, medical personnel are required to wear masks even for hospitals, especially for inspections and cafeteria employees, so demand is increasing, and waste disposal is becoming a problem especially in large hospitals. The problem is that all the discarded masks use a wire for the shape-maintaining core material and a linear body in which the wire is coated with two thermoplastic resins. Since wires do not burn after incineration, they accumulate in the ash and must be discharged to industrial waste by manipulating the sweeping work and processing the collected wire scraps. Furthermore, although the number of plastic cores is increasing, plastic burns high calories and damages furnace materials, polluting the air to a lesser degree than vinyl chloride. Be especially careful of combustion furnaces in densely populated areas. In order to reduce the load of air pollution, labor, danger, etc., the biodegradable core material that decomposes even when incinerated or buried in the soil provides the most reliable material.

[0004]

[MEANS FOR SOLVING THE PROBLEMS] It is made of a biodegradable cellulose material which can be easily bent and maintain its shape. The shape-maintaining core material that is brought into close contact with the face when wearing the mask is made of natural cellulose as a 100% material and becomes a shape-stable material by modifying the cellulose. Depending on the application, it can be processed into a composite form with other metals or plastics, and can also be attached to multiple locations on the peripheral portion, lower portion, or vertical surface of the mask body. The shape maintaining core material which is a biodegradable cellulose material has a thickness of 1.0 mm to 2.0 mm, which is the mask according to any one of claims 1 to 3,
The shape-maintaining core material is the mask according to any one of claims 1 to 4, wherein at least one of an aromatic agent, bamboo charcoal powder, and a cooling agent is impregnated. Can be given. Since this is a shape-maintaining core material made of natural cellulose, it can be easily added by coating or dipping by utilizing the water absorption and adsorption properties of cellulose, so that it can be used in the mask of claim 1. That is, according to the invention described in claims 1 and 2, the shape-maintaining core is installed in the mask body to reduce the gap between the mask body and the face along the nasal bridge and the unevenness of the face, which is the original performance of the mask. The greatest feature is the use of biodegradable fibers as a means for improving the filtration efficiency of impurities in the inside. The core material used to maintain the shape is mainly made of 100% natural cellulose paper. 70% base paper
In the step of passing through a zinc chloride bath adjusted to the concentration, the surface of the laminated paper is swollen and aged to be modified, and a laminated plate having hardness and rigidity not found in ordinary paper can be obtained. Since this material can be easily bent and maintains its shape, it can be used as a mask. It is easy to incinerate after use, and it either becomes incinerated ash or biodegrades when buried in the soil, so there is no problem with the environmental protection problem that has been receiving attention at present.

The shape-maintaining core material can be formed into various shapes and sizes. For example, thickness 1.5mm, width 3mm,
When it is attached to a mask with a shape of 90 mm in length, it deforms to θ = 40 ° according to the center point of the bridge of the nose, and it is deformed by lightly pressing it with a finger, it has little restoring force and leaves a moderate cushioning property. It is easy to adjust to your face just by adjusting it.

As another characteristic of the mask containing the biodegradable fiber, a positive use method is proposed in addition to air filtration. That is, cellulose has properties such as water absorption, oil absorption, and the like, which strongly adsorb the solution. For example, when a commercially available oil-based or emulsion type fragrance is applied to the shape-maintaining core material at a 0.3% weight ratio and used for the shape-maintaining core material, a pleasant fragrance can be maintained for a long time. Bamboo charcoal powder is laminated with cellulose to form a core material, and if multiple pieces are placed inside the mask, it will have deodorizing and dehumidifying effects, or if an antiallergic agent capsule is enclosed in the core material and multiple pieces are placed inside the mask, it will be inhaled. Cleansing effect. These cool feelings and removal of offensive odors will broaden the options for mask use such as mental stability when worn and relaxation of unpleasant environments.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a person wearing a mask having a shape-maintaining core material formed of biodegradable fibers as claimed in claims 1 and 3. The shape-maintaining core material adheres the mask to the face and deforms it along the irregularities of the face to eliminate gaps and perform its original role of removing dust, pollen and pathogens. Further, depending on the application, the shape-maintaining core material is a fiber and is organic, so that it is easy to attach an aromatic agent, bamboo charcoal powder, and a cooling material to the fiber at the fiber processing stage. For example, it is possible to use bamboo charcoal powder for use in a place where a bad odor is generated or in a dusty environment, and to put a capsule of a cooling agent or an antiallergic agent at the time of pollen generation.

As shown in FIG. 2, according to the second aspect of the invention, after the natural cellulose raw material is normally made into paper, the base paper is plyed to the required thickness, immersed in a solution of zinc chloride to react, and after aging and purification, special A fiber product is formed by cutting with a machine. The shape-maintaining core fiber (1) is hard, but it deforms when force is applied and maintains its shape. When attached to the mask body, it adheres to the face and plays the role of a mask. After use, it is incinerated or biodegraded when incinerated or landfilled.

FIGS. 3 and 4 show that one or a plurality of the above-mentioned fiber shape-maintaining core materials can be attached depending on the application. Shape-maintaining core material is 1 for normal mask
It is sufficient to make this interior, but for example, when working in strong winds or in a hot and humid environment such as underground work, sweat and splashes on the face may adhere to the mask body, and when breathing is not enough, oxygen It can be assumed that the amount of inhalation decreases and it becomes difficult to breathe. In such a special environment, if there are a plurality of shape-maintaining core materials, the distance between the nostril, the mouth and the mask can be freely changed, and breathing becomes easier, so that the feeling of fatigue can be reduced.

The core material has a thickness of 1.0 mm to 2.0 mm and a width of 1.0 mm to 10.0 mm in order to maintain a stubborn shape in view of the function of maintaining the shape. However, disposable masks are not intended to be used repeatedly, so the most appropriate range is 1.0 mm,
The width is 2.0 to 3.0 mm. However, if the shape-maintaining core material is deformed by an excessively strong pressure, it may be broken and damaged, and it is necessary to bend it at an appropriate deformation pressure angle (θ = 40 °) as shown in FIG.

[0011]

As described above in detail, the mask of the present invention is a shape-maintaining core material that is inserted into a part of the mask when the face is covered with the mask body and is deformed along the unevenness of the nose and mouth, especially the bridge of the nose. It is similar to a commercially available mask that it closely adheres to each other and eliminates a gap to fulfill its original role. A feature of the present invention is that natural cellulose fibers are used as a core material for maintaining the shape, which is indispensable for a mask, and attention is paid to cellulose that is excellent in toughness and rigidity by being modified with zinc chloride. It is significant to the global environment to expand the utilization of the natural fiber that is reproducible under the important themes of saving mineral resources and global warming, which is biodegradable and does not pose the risk of pollution. Think

[Brief description of drawings]

FIG. 1 Example of the present invention

FIG. 2 is a diagram of the present invention.

FIG. 3 is a plan view of a mask showing an embodiment of the present invention.

FIG. 4 is a plan view of a shape-retaining mask according to an embodiment of the present invention in a mounted state.

FIG. 5 is a perspective view of a shape maintaining mask showing an embodiment of the present invention.

[Fig. 6] θ of the natural cellulose fiber core material of the present invention
Shows 40 ° deformation

FIG. 7 is a cross-sectional view of a mask containing a shape-maintaining core material of the present invention.

[Explanation of symbols]

1 Fiber shape maintenance core material 2 mask body 3 mask straps 4 Bending section 5 Mask non-woven cloth 6 Filter inside mask 7 Cross-sectional view of fiber shape maintaining core θ = 40 °

Claims (5)

[Claims] 1. A core material made of a biodegradable cellulose material, which can be easily bent and maintain its shape, is attached to at least a part of a mask main body, and maintains its shape while maintaining its deformation along the nose bridge and the unevenness of the face. A mask characterized by what you can do. 2. A shape-maintaining core material that maintains a shape by deforming into a saddle-like shape or a wavy shape is intended to be used mainly as a raw material of natural cellulose. The mask according to claim 1, which can be processed into a composite form with the metal or plastic of. 3. The shape-retaining biodegradable cellulose molded article can be attached to the peripheral portion, the lower portion and the vertical surface of the mask body according to the purpose, and is attached to a plurality of locations. The mask according to 1 or 2. 4. The mask according to claim 1, wherein the biodegradable core material that can be deformed and maintain its shape has a thickness of 1 to 5 mm. 5. The mask according to claim 1, wherein the shape-maintaining core material is impregnated with at least one of an aromatic agent, bamboo charcoal powder, and a cooling agent.