JPH11343473A - Adhesive containing tourmaline - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adhesive contributive to the diminution of anaphylaxis to chemical matters and sick house syndrome, by utilizing the function and characteristics of tourmaline. SOLUTION: This adhesive is produced by blending a formalin-based adhesive with 0.1-30 wt.% tourmaline powder having the size of 0.9-100 μm and by kneading. It is possible to restrain the evaporation of formaldehyde and to maintain a semipermanent effect against anaphylaxis to chemical matters and sick house syndrome by applying the adhesive to building materials (e.g. plywood, laminated lumber, flooring), furniture, wallpaper, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to an adhesive for interior materials such as building materials, furniture, wallpaper, etc., which is produced by mixing and kneading fine powder (0.9 μm to 100 μm size) of tourmaline (formal stone) into a formalin-based adhesive.

Conventionally, various formalin-based adhesives (urea, phenol, melamine, resorcinol) are well-balanced in workability, performance and cost, and are commonly used in plywood for construction materials, glulam, furniture, etc., and as a preservative for wallpaper and wax. However, these are considered to be sources of VOCs (volatile organic compounds) and cause "chemical sensitivity" and "sick house syndrome". There are few effective means for preventing the emission of VOCs (volatile organic compounds) considered to be harmful to the human body.

[0003] "Chemical hypersensitivity" caused by formalin-based adhesives (urea, phenol, melamine, resircinol) currently used for interior materials of houses, such as building materials, furniture, and wallpaper, and those used inside. "," Sick house syndrome "is a problem.

The present invention relates to a fine powder of tourmaline (an tourmaline) in a formalin-based adhesive (urea, phenol, melamine, resircinol) (0.9 μm to 100 μm size).
Characterized in that to produce the addition is mixed functionality with the tourmaline chemical reaction takes place as moisture changes H ₂ gas contained in the material or the like is generated by the chemical formula 1 (electric resolution of water), the smell of toxicity The strong formaldehyde is transformed into a less toxic and less toxic methanol.

[0005]

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Tourmaline (tourmaline) is a natural mineral and has a Mohs hardness of 7.0 to 7.5, is relatively hard, and must be formed into ultrafine particles to be mixed into an adhesive or the like.

For tourmaline (tourmaline), the finer the particles, the larger the surface area and the greater the effect. Also, it is characterized in that the functionality is maintained semipermanently.

Conventional formalin-based adhesives are used in the environment (temperature,
The effect can be expected for the VOC which continues to be generated for a long time due to humidity or the like.

A plywood 1 made of a conventional formalin-based adhesive and a plywood 2 mixed with tourmaline (tourmaline) were manufactured and the emission amount of formaldehyde was measured.
0.19 to 0.2 for mg / L (blank test)
It was reduced to about 1/10 of 1 mg / L.

[0010]

[Plywood 1]

[0011]

[Plywood 2]

Building materials, furniture, wallpaper, and the like made of an adhesive obtained by mixing and kneading tourmaline (an tourmaline) fine powder into a formalin-based adhesive have a low emission of formaldehyde, which is semipermanently effective. It significantly reduces obstacles such as "chemical sensitivity" and "sick house syndrome" and provides a safe and comfortable living space environment.

[Procedure amendment]

[Submission date] November 24, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Added

[Correction contents]

A plywood 1 made of a conventional formalin-based adhesive and a plywood 2 mixed with tourmaline (an tourmaline) were manufactured, and the emission amount of formaldehyde was measured.
0.19 to 0.2 for mg / L (blank test)
1mg / L and reduced to about 1/10, and Japan Agricultural Standards
(JAS) Based on formaldehyde emission test for special plywood
In the test used, the blank was 1.20 mg / L
Tourmaline particles 0.60 mg / L, tourmaline particles
0.47 mg / L, tourmaline particles 0.43 mg / L
L, natural stone 0.92mg / L and tourmaline particles ~
Of the blank test at an average value of 0.50 mg / L
Dispersion is reduced by about 58% and natural stone by about 46%
did.

Claims (1)

[Claims] 1. A formalin-based adhesive (urea, phenol,
Mix fine powder of tourmaline (natural stone) into melamine, resorcinol, etc. and apply it to adhesives and paints for interior materials such as building materials, furniture, wallpaper, etc. Using this adhesive, VOCs (volatile organic compounds such as formaldehyde, toluene, xylene, etc.) )
Adhesive that suppresses the emission and generation of water and prevents "chemical sensitivity" and "sick house syndrome".