JPH0640833A - Wood powder interposing sheet - Google Patents

Abstract

PURPOSE:To obtain a sheet capable of repelling noxious insects such as acarid, cockroach, etc., having antibacterial and antifungal properties and harmless to human beings and beasts. CONSTITUTION:The wood powder interposing sheet is constituted by forming a hollow part 3 in either one sheet 1 in two sheets 1 and 6 in which at least one sheet has air permeability, packing hinokitiol-containing wood powder 5 of Thujopsis dolabrata Sieb. et Zucc., Chamaecyparis obtusa Endl., Chamaecyparis pisifera Endl., etc., in this hollow and bonding a part 2 other than the hollow to the other sheet 6.

Description

Detailed Description of the Invention

[0001]

[Field of Industrial Application] The present invention provides a method for controlling pests using wood powder containing medicinal components such as hinokitiol having repellent properties against mites, cockroaches, antibacterial properties against Trichophyton, and antifungal properties. The present invention relates to a wood powder sandwich sheet that prevents and exhibits antibacterial properties.

[0002]

[Prior Art] In recent years, the heat insulation of apartments and condominiums,
The number of houses that are highly airtight and contain a suitable amount of moisture in concrete is increasing, creating a favorable environment for the outbreak of mites and increasing the damage caused by mites.

In order to eliminate this damage, various types of aerosol type in which a needle is injected into a tatami from a spray can, or sheets in which an organic phosphorus chemical is soaked in paper are commercially available.

[0004]

By the way, the above-mentioned mite sheet is not subject to the regulation of the Pharmaceutical Affairs Law regarding safety check and indication of active ingredients and precautions for use. Accidents occur in various places where people use the product without being given any knowledge and feel sick or have a sore throat.

The present inventors have found that hinoki thiol, which repels mites, etc., is contained in Hiba, sawara, cypress, Yakusugi, etc., and when sawing these woods, a large amount of sawdust is generated as industrial waste. , This sawdust,
It has been found that a medicinal component which repels the above-mentioned mites is contained, the medicinal component is harmless to the human body, and the contained medicinal component is gradually released over a long period of time.

The present invention has been made on the basis of the above findings, and provides a wood powder sandwiching sheet which is harmless to the human body and is safe and can be used as a repellent for mites, an antibacterial agent, and an antifungal agent. With the goal.

[0007]

In the wood powder sandwiching sheet according to the present invention, wood powder containing a component that repels harmful insects or antibacterial fungi is formed into two sheets, at least one of which is a breathable sheet. It was a means of solving the problem that it was clamped. Typical examples of the wood powder are powders of Hiba, sawara, cypress, and Yakusugi, and a nonwoven fabric is suitable for the breathable sheet.

[0008]

Since the wood flour sandwiching sheet of the present invention has the above-mentioned constitution, sawdust, which is an industrial waste, is effectively used, and in particular, hinokitiol contained in Hiba, sawara, cypress and Yakusugi is used as a food additive. It is an approved ingredient that is safe without causing chemical damage to humans and animals like synthetic chemicals and pesticides, and is a chemical that keeps mites and fungi away.

[0009]

1 to 3 show an embodiment of a wood powder sandwiching sheet according to the present invention, in which reference numeral 1 is a chevron sheet. In the mountain-shaped sheet 1, a large number of concave portions 3 defined by the laterally narrow convex portions 2 are formed in an array, and the concave portions 3 are arranged in the vertical direction via wide convex portions 4.

Wood powder 5 is placed in the concave portion 3 of the chevron-shaped sheet 1.
And the flat sheet 6 is placed on the upper surface thereof, and the flat sheet 6 is adhered to the convex portions 2 and 4 of the chevron-shaped sheet 1 to form the wood flour sandwiching sheet 7.

The material for the chevron sheet 1 and the flat sheet 6 is not particularly limited as long as at least one of them is breathable and the flat sheet 6 and the convex portions 2 and 4 of the chevron sheet 1 are bonded and integrated. A non-woven fabric made of synthetic fiber or the like is conveniently used as the breathable sheet. For example, a non-woven fabric is press-molded with a molding roll, wood powder is filled in the molded concave portions 3, and a thermoplastic resin sheet as a flat sheet, or a paper laminated with a thermoplastic resin is used as the convex portions 2 and 3 of the chevron-shaped sheet 1. Fuse. The above Yamagata sheet 1
The concave shape of is not limited to the rectangular shape shown in the figure, and can be freely changed by selecting a molding roll,
Further, it is desirable to cut the adhesive portion of the sheet into a shape that can obtain a sheet having a desired shape without leaking wood powder.

As the wood powder to be filled in the recesses 3, cutting powders (cuts) such as hiba, sawara, cypress and yak, crushed powder, crushed pieces and the like are used, but in addition to this, hiba, sawara, cypress , Hinokitiol-containing essential oil extracted from Yakusugi, etc., is adsorbed on an adsorbent such as cotton fiber (catch oil), gellalite, activated carbon, silica gel, etc. to produce 10 to 70% by weight of the wood powder. Those mixed in a ratio may be used, and it is preferable to use this because it is possible to prolong the release time of the medicinal component.

Further, in the wood flour sandwiching sheet of the present invention, another breathable sheet can be laminated on the outside of either one or both of the chevron sheet 1 and the flat sheet 6 as required. Further, the outer surface of the chevron-shaped sheet 1 or the flat sheet 6 may be provided with a pattern or coloring by arbitrary printing.

In such a wood powder sandwich sheet,
The medicinal components such as hinokitiol contained in the wood powder filled inside gradually pass through the aeration sheet and are diffused to the outside, repel pests such as mites, cockroaches, mosquitoes and termites, and also have antifungal properties, It exhibits antibacterial properties, emits a unique cypress-like fragrance, and does not cause any harm to humans or livestock. Therefore, this wood powder sandwich sheet is
It can be used for a wide range of purposes below. Interior materials such as tatami mats, mats, carpets, and interior materials such as curtains and wallpaper, furniture, chairs, beds, furniture for furniture such as storage boxes, bedding, pillows and other bedding materials ,
Insoles for shoes, interior materials for food factories, interior materials for hospital rooms, lining materials for food storage rooms such as kitchens, electronic devices such as computers, word processors, telephones, etc. It is used as a material, packaging material for fresh food, packaging material for seeds, bulbs, etc. Further, it is possible to easily feel the so-called forest bath just by placing this sheet indoors.

[0015]

Industrial Applicability As described above, the wood powder sandwiching sheet according to the present invention is inexpensive because the wood flour such as hiba, sawara, cypress, and Yakusugi is sandwiched between the breathable sheets,
The contained pest repellent and antibacterial medicinal components are released over a long period of time, repel pests, exhibit antibacterial and antifungal properties, and emit aroma for a long time without affecting humans and animals.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a wood powder sandwiching sheet according to the present invention.

FIG. 2 is a sectional view taken along the line II-II of FIG.

3 is a sectional view taken along the line III-III of FIG.

[Explanation of symbols]

 1 chevron sheet 2 narrow convex portion 3 concave portion 4 wide convex portion 5 wood flour 6 flat sheet 7 wood flour sandwiching sheet

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location E04B 1/72

Claims (4)

[Claims] 1. A wood powder sandwiching sheet, characterized in that wood powder containing a component having pest repellent or antibacterial properties is sandwiched between two sheets, at least one of which is a breathable sheet. 2. The wood flour sandwiching sheet according to claim 1, wherein the wood flour is one or a mixture of two or more kinds of hiba, sawara, cypress and yak-sugi. 3. The breathable sheet is a non-woven fabric.
Or the wood powder sandwiching sheet according to 2. 4. A recess is formed in one of the two sheets,
The wood powder holding sheet according to claim 1, 2 or 3, wherein the recess is filled with wood powder, and the other sheet is bonded to a part of the one sheet other than the recess.