JP3095509U - An ear-mounted mask that captures and separates fine dust, adsorbs and decomposes irritating gases and odors, and has a biodegradation function for disposal. - Google Patents

Abstract

(57) [Summary] (Modified) [Problem] Filtration and capture of fine dust such as cedar pollen, and adsorption / decomposition of irritating and odorous gases such as Knox, ethane gas, and mercaptan, and breathability The present invention provides an ear-hook mask that has a low loss and the material itself returns to its natural state without polluting the environment due to its biodegradability. SOLUTION: Natural fibers such as wood pulp and chitin / chitosan are made into fibers, and the created nonwoven fabric is used as a filter base material. Further, an electron beam or radiation is applied thereto, and the fiber surface is adsorbed by a graft polymerization method. A mask material 2 that satisfies the subject without generating a functional group having a decomposition function and reducing the air permeability of the nonwoven fabric. This material is a natural fiber only and is biodegradable upon disposal, so that it can be returned to nature without causing environmental pollution. The nonwoven fabric itself can be used as a mask body, or the nonwoven fabric can be used as a filter by inserting it into a mask base made of natural fibers such as gauze or the like.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  Concerning masks worn to protect the health of the human body when breathing Is.

[0002]

[Prior art]

  Most of the masks that have been conventionally used for dust and odor prevention use cotton gauze. Mainly, and as a filter for this, activated carbon, titanium dioxide, etc. There are many developed filters that use the stored filters by inserting them. Has a limited adsorption capacity for stimulating positive gas, and the thickness and weight of the filter There is a feeling of discomfort in use, and there is no problem in the disposal of the filter when it is replaced. However, it was inconvenient for general household use.

[0003]

[Problems to be solved by the device]

  The filter part described in the section of the conventional technology is a bag made of non-woven fabric, Some have fibers, but this one has a thick filter layer, I feel a lot of discomfort. In addition, titanium dioxide is adsorbed or attached to the fiber itself. Some of them are used in combination, but in reality, when worn as a mask, In this case, the thickness and volume of the filter are limited, and the adsorption / separation capacity is limited. In particular , Children find it inconvenient to use.

[0004]

[Means for Solving the Problems]

  The present invention has been made to solve the above-mentioned problems caused by the conventional technology. Therefore, the filter material itself captures and collects fine dust such as cedar pollen. A highly breathable material that absorbs and decomposes aggressive gases and odors was used.

[0005]   This material is made from natural wood pulp fibers and chitin / chitosan. It is a non-woven fabric made by combining. This non-woven fabric absorbs heavy metals and radioactive materials. It has a binding effect and also has an antibacterial effect.

[0006]   Furthermore, this non-woven fabric is different from the commonly used synthetic resin-based non-woven fabric, and Because it is made of wood pulp and chitin / chitosan, it has biodegradability. When it is discarded, it will be decomposed within 2-3 months even if it is buried underground without causing environmental pollution. It has the property of returning to soil.

[0007]

[Embodiment mode]

  The material adopted in this invention can be used by stacking several sheets without impairing breathability. It is antibacterial and has the effect of capturing and sterilizing bacteria in the air, but irritating There was a weak point that it did not act particularly on gas.

[0008]   So, this material is made of natural cellulose and chitin / chitosan This material is irradiated with radiation, electron rays, X-rays, ultraviolet rays, etc. To form a graft polymer chain without damaging the original properties of the material. By adding Knox, socks, ammonia odor, ethane, mercaptan, We have obtained the ability to add adsorptive decomposition functions such as rudehide.

[0009]   In general chemical fiber non-woven fabric, in order to enhance the effect of graft polymerization, Adsorb sugar and other viscose on a non-woven fabric and irradiate it with radiation. However, the non-woven fabric adopted by the present invention is essentially wood pulp and chitin / chitosan. For this reason, it is rich in protein and does not require any pre-treatment as a non-woven fabric. Graft polymerization is possible, polymer chains are abundantly formed, and there is no other comparable adsorption / decomposition effect. The fruit was obtained.

[0010]   Graft-polymerized chains have two types of functional groups, acidic and alkaline, when introducing functional groups. Can be attached. Therefore, depending on the nature of the gas to be adsorbed, acid / alkali Two types of non-woven fabric can be used.

[0011]

[Example of device implementation]

An acceleration voltage of 1.5 to 2.0 MV. Is applied to a sheet-shaped roll of a non-woven fabric made of a combination of natural wood pulp and chitin / chitosan and having a weight of 30 g / 1 m ² and a width of 1 m. Electron beam current 1 to 15 mA. Under the conditions described above, the electron beam was continuously irradiated to form a graft-polymerized chain, and the mask made of cotton gauze as shown in Fig. 1 was cut into two pieces according to the size. As shown in FIG. 2, the non-woven fabric itself was overlaid with two sheets, and a mask was manufactured. In each case, the breathability did not impair the feeling of use.

[0012]   The mask made under the present invention can be used with masks currently on the market. There was no discomfort in the above feeling, and there were no notable differences.   Regarding the function of adsorptive decomposition of irritating gases and odors, please use commercially available As a result of conducting a comparative test with a carbon fiber, its remarkable performance was recognized.

[0013]   Table 1 shows a comparison table of adsorption capacities for gas adsorption performance.

[Explanation of Table 1]         A: Adsorption sheet of the present invention         B: Commercially available adsorption mat         C: Activated carbon fiber         Gas inflow concentration: 6-8 ppm         Gas inflow rate: 4 cm / sec         Material weight ； A ； 0.4g                       ; B; 2.0 g                       ; C; 0.8 g

[Table 1]

[Brief description of drawings]

FIG. 1 shows an example in which a suction sheet of the present invention is inserted into a commercially available gauze mask.

[Fig. 2] An example of using the suction sheet of the present invention as an ear-hook mask

[Explanation of symbols]

1 Commercial gauze mask 2 Adsorption sheet of the present invention 3 ear hanging rubber cord

[Procedure amendment]

[Submission date] January 27, 2003 (2003.1.2
7)

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

1. An ear-hook type mask having a function of adsorbing / separating / decomposing using a nonwoven fabric as a filter, which is synthesized from natural wood pulp and liquefied chitin / chitosan.

2. The non-woven fabric of the filter material according to claim 1 has natural cellulos as a main component, so that it is capable of forming a radical functional group by irradiation with ultraviolet rays or infrared rays, and therefore has an additional adsorption / decomposition function. Ear-hook type mask that features

3. Adsorption / separation / removal according to claim 1 or 2.
The non-woven fabric of the filter that has a decomposing function is biodegradable and can be disposed of without causing environmental pollution.

4. The ear hook characterized in that the filter according to claims 1, 2 and 3 can be used by inserting it into a mask made of natural fiber such as gauze as a filter / material. Type mask.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor: Kuga Yusuke             Sanbuha 4-4 Gobancho, Chiyoda-ku, Tokyo             It 1807 (72) Creator Eiichi Itami             3-101, 1-7 Sakaemachi, Higashimurayama, Tokyo

Claims (4)

[Scope of utility model registration request] 1. An ear-hook type mask having a function of adsorbing / separating / decomposing with a non-woven fabric as a filter, which is composed of natural wood pulp and liquefied chitin / chitosan. 2. The non-woven fabric of the filter material according to claim 1, further comprising a graft polymerization reaction on the surface of the fiber by irradiation with radiation or an electron beam, and the functional group of the resulting graft chain is used. Characterized by the addition of adsorption and decomposition functions. 3. The non-woven fabric of a filter having an adsorption / separation / decomposition function according to any one of claims 1 and 2, further has a biodegradation function that can be disposed of without causing environmental pollution. I am trying. 4. The non-woven fabric filter according to any one of claims 1, 2, 3 is used as a mask body by itself or in a mask made of natural fiber such as gauze as a filter element. Ear-hook type mask that can be inserted and used.