JP2006000717A - Flap for adsorption of chemical substance and its application product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coating structure adsorbing formaldehyde, the main cause of sick house syndromes. <P>SOLUTION: A flap (a) coated with an adsorbent adsorbing formaldehyde highly efficiently is mounted within the chamber of an air conditioner or an air cleaner. The flap allows citizens without technical knowledge to use conveniently and safely in everyday life. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a method for easily and inexpensively using a coating structure that adsorbs formaldehyde, which is a main factor, for eliminating the cause of sick house syndrome.

Volatile organic compounds (hereinafter referred to as VOC) typified by formaldehyde in homes, renovations and homes diverge into the room and damage health. Many chemicals that irritate the eyes and skin and products that contain large amounts of chemicals are used.
Many people are suffering from sick house syndrome due to high airtightness and high thermal insulation. Sick house syndrome is a social problem.

VOC is a general term for volatile organic compounds that are diffused into the air.

Sick house syndrome is a health hazard due to air pollution caused by VOCs diffused indoors.

If a family member in a new house or building that contains a lot of VOC has lived for a long time, he / she has no appetite, cannot sleep well, he / she wakes up, is irritated, has a sore throat, has a headache, Dizziness, pain in the eyes, itching, tearing, redness, tingling, often catching a cold, runny nose, stuffy nose, nosebleed, dull, tired, allergy-like symptoms, eczema, rhinitis, skin rash, body Symptoms such as itching, coughing, dry skin, sneezing, asthma, sore throat, nausea, insomnia, tinnitus, and shortness of breathing occur.
These symptoms are singly or in combination to indicate a disease state.
Not only is it released into the air, but it also accumulates in the body.
There are various symptoms, and this is not the limit.
If left unchecked, the symptoms will worsen and the health may be impaired.

The cause is a volatile organic compound mainly composed of formaldehyde.

Specific items around us are adhesives for plywood and wallpaper, evaporation of mold and insect repellent, evaporation of adhesive, vinyl cloth, plastic model adhesive, furniture adhesive, coating agent, insecticide Evaporation from chemicals, insect repellent sheets, organic cleaners for dry-cleaned clothes evaporate, plasticizers, termite-proofing agents, adhesives used on wood, building materials, etc. for walls, floors and ceilings, ink for printed materials, tobacco This is due to smoke and the use of spray products.
There are various causes, and this is not the limit.

As a standard for measuring the current safety level, the guideline value for formaldehyde of the Ministry of Health and Welfare is 0.08 ppm or less. 1 ppm is 0.0001%. The guide value is 0.000008% or less in the air.

Unless forcibly ventilated, hazardous chemicals will not escape.
Hazardous chemicals must be continuously ventilated over a long period of time, even if they are ventilated, or volatile organic compounds will gradually exude.

Conventionally, there is a method called bake-out method in which the room temperature is forcibly raised and harmful chemical substances are evaporated at a high temperature at a stretch, and then VOC is removed by ventilation.
Formaldehyde oozes out slowly, so it is difficult to produce results at a time, and it is less effective. This measure is not always used simply, safely and inexpensively in general homes and offices. There was no equipment or equipment that could easily and inexpensively remove the entire room.

It is necessary for the sick house measures that the formaldehyde generated from the walls and furniture of houses and offices is absorbed quickly and the human body does not inhale in daily life. It must also be a safe material for handling. Safety and health considerations from the consumer side should be given top priority. When air containing formaldehyde adsorbs and removes formaldehyde, it is self-evident that the adsorption efficiency can be improved by applying a flow of air to the substance.

Apply an adsorbent that adsorbs formaldehyde with high efficiency in advance by means of impregnation, spray coating, brushing, etc., and install the installed air conditioning flap in the air conditioner or various air purifiers and turn on the power By doing so, a consumer without specialized knowledge can use it easily and safely in daily life. By placing a flap having a layer containing an adsorbent in the air flow in the room, it can be efficiently removed. The present invention is produced gradually by applying a non-volatile drug having a highly efficient adsorption effect or a resin compound by graft polymerization having an adsorption terminal to the flap by means of impregnation, spray coating, brush coating, etc. The present invention provides a structure that quickly removes formaldehyde in an air circulation. If you want a comfortable life, you can't think of it without the indoor space from which this formaldehyde has been removed.
Consumers become comfortable tools in terms of housing and health.

Various companies have commercialized coating materials suitable for adsorbing formaldehyde. By utilizing these adsorbing compounds, a material that adsorbs formaldehyde with high efficiency can be selected. For example, Grafton manufactured by Bussan Grafton Co., Ltd. can be used. Grafton strongly adsorbs malodorous components such as ammonia as well as formaldehyde.
Obviously, the present invention is not limited to any particular material.

In recent years, air conditioners and air conditioning facilities are in place, and various air conditioners and air conditioner switches are turned on to create a flow of indoor air. Adsorbing formaldehyde to the flap base material installed in the device in the flow If the agent is applied by means such as impregnation, spray application, or brush application, formaldehyde can be adsorbed and removed by the effect of the formaldehyde adsorbing agent by the air flowing on the flap.

Air conditioner (an abbreviation for air conditioner, a device that can adjust the air in a room for cooling, heating, and dehumidification with electricity or gas).
Air purifier (air purifier = device that cleans dust and pollen in the air),
Dust collector (electric dust collector, mechanical dust collector = dust collecting device).
Deodorizing machine (deodorizing machine = device that removes and removes odors).
Air conditioning is an abbreviation of the term air conditioning, and it is equipment that keeps the air in a building in an optimal state using machines for the people, living things, and things inside.

The apparatus has a flap, which is attached to the outlet. There is also a movable type that can change the direction of the wind.

There are flaps at the air outlets of air conditioners, air purifiers, and various air conditioners, and the present invention can be handled by means such as impregnation, spray coating, and brush coating.

When formaldehyde is generated in the room, formaldehyde is immediately contained by attaching the one previously applied to the flap by means of impregnation, spray coating, brushing, etc., and operating the above equipment. It can remove substances and protect people and organisms living from sick house syndrome.

At the time of application, the adsorption / removal effect of the present invention can be enhanced by using means such as impregnation with an adsorbent substance solution, spray application, brush application, and the like.

Because it can be applied as much as possible on the front, back, and both sides of the flap, the air conditioner is not limited, and any type of air conditioner (eg, ceiling-embedded type, ceiling-suspended type, wall-mounted type, floor-mounted type) Can also be realized.

The flaps used in the examples are made of polypropylene. It is obvious that the material is not limited to this when applying the present invention.

FIG. 1 shows an example of attaching a flap base material to a ceiling-embedded air conditioning cassette. In actual application, the present invention is not limited to FIG. 1, and the effect is exhibited even when applied to a flap base material of a wall-hanging air-conditioning indoor unit or applied to a flap base material of an air purifier. By collecting airflow in the flap, it aims at air contact. It aims to increase adsorption by collecting formaldehyde floating in the room and drawing in air.

FIG. 2 shows a schematic diagram of an example of application to a flap base material.
In FIG. 2, a formaldehyde-adsorbing drug is applied to a flap to obtain a test material.

FIG. 3 illustrates the chemisorption mechanism of adsorbent and formaldehyde on the flap surface. When the adsorbed drug is applied, the drug becomes a layer, and the drug is bonded to the chemical substance by the circulation of air, and is strongly adsorbed and removed by a chemical reaction. Catch a chemical substance floating in the air with an adsorbent, collect it and inactivate it.

FIG. 4 shows a suction imaginary view near the outlet. When the adsorbing agent is applied, the agent becomes a layer, and when the air is blown out, it is circulated by the air volume and the air flow, and the adsorbing agent further exhibits the effect. There is no waste, it draws air more efficiently and pushes it outside,
A vortex is created in the air flow, and air flow is applied to the adsorbent to improve removal efficiency.

Because it is chemisorbed, it is not affected by the strength of the air flow, and there is no risk of re-entrainment.

  Manufacture of test flap 1. Grafton stock solution manufactured by Bussan Grafton Co., Ltd. An 8% aqueous solution was spray coated on the front, back and back of 8 flaps. See FIG. Then it was air dried. The total weight increase was 8 g.

  Manufacture of test flap 2. A 6% solution of Riken Resin FC-8G manufactured by Miki Riken was sprayed and air-dried. The total weight increase was 7 g.

  Test method. The test was conducted in a 90 m3 room. In the case of the comparative example, untreated flaps were used and each was mounted on a ceiling air conditioning cassette. There were two indoor units for air conditioning, and four of each were installed. From the air outlet of FIG. 4, the air volume of the ceiling air-conditioning cassette was 20 m3 / min. It becomes 40m3 / min with two units.

  0.2 g of paraformaldehyde was placed on an electric heater plate and thermally decomposed at 150 ° C. Immediately after that, it was approximately 1 ppm. There was adsorption on the wall, and the test was conducted for 2 hours after pyrolysis, and then the concentration of formaldehyde was measured. For the measurement, an FP-30 type formaldehyde detector manufactured by Riken Keiki was used.

The test results are summarized in Table 1.

FIG. 1 is a perspective view of a ceiling air conditioning cassette. FIG. 2 is a flap plan view used for the air conditioning cassette of FIG. It is an enlarged view of the flap which shows the state which adsorb | sucks a chemical substance. FIG. 2 is an enlarged view of the vicinity of the air outlet of the air conditioning cassette of FIG.

Explanation of symbols

a Flap substrate
b Formaldehyde adsorbent coating layer
c table
d back
e Volatile organic compounds VOC chemicals

Claims (4)

  A flap with a layer of non-volatile material that chemisorbs formaldehyde on the front or back or both sides. An air cleaner equipped with the flap of claim 1. An air conditioner indoor unit equipped with the flap of claim 1. A deodorizing machine equipped with the flap of claim 1.