JPS60161143A - Incombustible decorative material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a noncombustible decorative material in which a base material of rock wool or glass wool used for ceiling materials and the like is decorated.

(Prior art) Inorganic wool base materials such as felts, cloaks, and boards made of inorganic wool (or inorganic fibers) such as rock wool and glass wool have high fire retardant properties because they are inorganic, and are so-called "noncombustible." In addition, since it is made of fiber and has a low density, it has excellent sound absorption, heat insulation, and heat retention properties, and is often used as a ceiling material that requires particularly high fire prevention performance.

Since these inorganic wool base materials do not have a good appearance by themselves, it is desirable to apply some type of makeup when using them in areas that are conspicuous, such as ceiling materials. In the past, various attempts have been made to apply makeup to inorganic wool substrates. Alternatively, in the method of spraying a blend of inorganic powder such as stone powder and synthetic resin paint, even if the inorganic wool base material is pre-filled with irregularities, only a monotonous appearance can be obtained, and a large amount of paint is applied. By applying
Since the adhesive resin content increases, a decrease in fire protection performance is unavoidable. Although the exterior design is good, a decrease in fire protection performance is still inevitable, and even if there is no problem in fire protection performance with the method of printing and pasting on (crushed) glass cloth, The printing itself is difficult due to the unevenness, and the glass cloth itself is expensive.Although the asbestos sheet method does not have any problems with fire prevention performance, asbestos sheets are subject to regulations for prevention of hazards caused by specified chemicals, labor regulations, etc. There are problems such as the handling is regulated by various laws and regulations such as the Safety and Health Act.

Therefore, with conventional cosmetic methods, there has been no decorative material that imparts design while maintaining fire retardant performance and is free from safety problems.

(Object of the Invention) An object of the present invention is to provide a decorative material which uses an inorganic wool base material as a base material and eliminates the drawbacks of the above-mentioned prior art.

(Structure of the Invention) The present invention provides adhesive bonding on an inorganic wool base material with an adhesive of 2 to 70% by weight relative to aluminum hydroxide and cellulose fibers.
The present invention relates to a non-flammable cosmetic material which is characterized in that it is laminated with decorative paper as a base paper.

The present invention 7 will be described in further detail below with reference to the drawings as necessary.

``Figures 1 to 5 all show the structure 2 of the nonflammable cosmetic of the present invention.
FIG.

The non-combustible decorative material 1 shown in FIG. 1 has a structure in which a decorative paper 3 is laminated on an inorganic wool base material with an adhesive layer 2 interposed therebetween. Decorative paper 3 is obtained by printing S7 on base paper q.

In J6 above, the inorganic wool base material/ is a felt, mat, board, etc. made of inorganic wool such as rock wool or glass wool. For ceiling applications, boards made of rock wool or glass wool are usually used. Rock wool can be obtained by melting basalt in a bath at a high temperature and blowing it with high-speed air to form fine fibers. Rock wool can also be obtained by blowing molten glass onto glass wool using steam blowing, flame blowing, and centrifugal methods. It is made into thin fibers using methods such as The inorganic wool base material is preferably adjusted to have a bulk specific gravity of 0.S or less, more preferably 0.2 or less, in order to exhibit heat retention performance, heat insulation performance, and sound absorption performance.

The base paper q of the decorative sheet 3 is preferably one in which aluminum hydroxide is retained at a weight ratio of λ to 10 times that of cellulose fibers, and such paper (usually referred to as "inorganic paper") 7 When used, the fireproofing performance of the paper itself is compromised. If the weight ratio of aluminum hydroxide is less than twice, the fireproof performance will be poor, and from the point of view of fireproofing performance, the higher the weight ratio of aluminum hydroxide, the better. The weight ratio of aluminum hydroxide is 10% from the viewpoint of the strength of the paper.

Preferably below the electrical section. The above-mentioned inorganic paper may be mixed with glass fibers in a range of 7 to 20% by weight based on the total weight of the inorganic paper in order to provide both dimensional stability and fireproof performance. In addition, inorganic paper is preferably subjected to size pressing and surface calendering to improve water loading performance and smoothness, and a basis weight of 55 to 200 pa is appropriate.

The printing S on the decorative sheet 3 can be provided by gravure, off-screen printing, letterpress, screen printing, or other conventional printing methods, but in order to prevent the resin content in the ink from deteriorating the fire protection performance, The amount of ink applied (resin content) is 30 #/nr or less, more preferably 10!
It is preferable to set it to less than jβ.

The ink used for printing may be a vehicle such as acrylic resin, vinyl chloride resin, vinyl acetate resin, polyvinyl fluoride resin, polyester resin, polyrankan resin, nitrocellulose resin, cellulose acetate resin, or a homopolymer resin such as these. Copolymers, dyes or pigments, coloring agents, extender pigments, etc. are used.As the coloring agent, it is preferable to use pigments, especially inorganic pigments, from the viewpoint of fire retardance. Calcium carbonate, sulfuric acid, aluminum hydrate, calcium silicate, etc. can be used as extender pigments, but from the viewpoint of fire retardancy, the weight ratio to the vehicle should be 3.
It is best to mix it so that it is more than double the amount.

Furthermore, the ink contains phosphorous substances such as ammonium phosphate,
Flame retardants such as nitrogen-based substances such as potassium nitrate, antimony-based substances such as antimony trioxide, etc. 0.3-3. When θ% is added to 1-%, flame retardant performance can be imparted to the ink and eventually to the printing S.

The adhesive for laminating the sheet 3 and the inorganic wool base material may be an emulsion type adhesive such as polyvinyl acetate, ethylene/vinyl acetate copolymer, acrylate ester/vinyl acetate copolymer, etc. Solvent-based adhesives 7 such as SBR or chloroprene can be used, and these adhesives can be applied to either or both of the adhesive surface of the decorative sheet 3 or the inorganic wool base material by gravure roll coating, reverse roll coating, or air knife coating. It is applied by a coating method such as coating or spray coating, and then the two are combined and pressed by a roll press or a flat plate press to bond and laminate.

The basic configuration of the present invention has been described above, but the present invention may also be modified as illustrated in FIGS.

The non-combustible decorative material shown in FIG. 2 is obtained by providing a synthetic resin protective layer 6 on the surface of the non-combustible decorative material shown in FIG. 1. By providing the synthetic resin protective layer A2 in this way, the rigidity of the decorative paper is increased, the sensitivity is improved, and the printing S is protected, and the surface is prevented from becoming stained and abraded. The synthetic resin for forming the synthetic resin protective layer 6 is preferably polylanthanum resin or polyvinyl chloride resin, which have high film-forming properties, and the layer 6 can be formed by converting these synthetic resins into paints and applying ℃ roll coating or gravure coating. I can do it. Or layer t
It can also be obtained by extrusion coating with a polyolefin resin (11i) or a polyester resin.

Note that the layer B may be provided before or after the decorative paper and the inorganic wool are laminated. The thickness of layer B is determined from the viewpoint of fire resistance.
o gyyrrt or less, preferably /θg/m or less.

The non-flammable cosmetic material shown in FIG. 3 is the same as the non-flammable cosmetic material shown in FIG. 1, but is provided with decorative paper 3VC unevenness (embossed) 7, and this eliminates the monotony of the surface. Note that when the unevenness 7 and the printing hy match, the three-dimensional effect is further increased. Although embossing can be carried out on the decorative paper either before or after the decorative paper, inorganic wool, and embossed layer, it is easier to embossing the decorative paper before lamination.

Especially for decorative paper made of paper yarn base paper, an embossing roll and a woolen roll should be rotated facing each other as a means for sulfur embossing.When using a so-called "paper embossing machine", embossing with a large difference in height between concavities and convexities can be done continuously. It can be done in web form and has high production efficiency.

The non-combustible cosmetic material shown in Fig. 3 is the non-combustible cosmetic material shown in Fig. 3 provided with a synthetic resin protective layer t.

In this way, the effects of the non-combustible cosmetic material shown in FIG. 3 and the non-combustible cosmetic material shown in FIG. 2 can be exhibited together.

The non-combustible cosmetic material shown in FIG. S is provided with a moisture-proof layer gy made of synthetic resin on the back side of the decorative sheet 7 of the non-combustible cosmetic material shown in FIG. Although the inorganic wool base material has a small bulk specific gravity and good heat insulation and sound absorption properties, on the other hand, since the voids between the fibers are continuous, the moisture permeability is high and there is a high possibility of condensation. It is good to provide g.

Moisture-proof layer (g) Constituent synthetic resin and layer c) The method of installation is the same as layer (B). Although not shown, providing a transparent synthetic resin on the surface of the decorative sheet and providing a moisture-proof layer on the back side further improves the moisture-proofing effect and is also advantageous in terms of improving the rigidity of the decorative paper. .

(Young fruit of the invention) According to the above-described invention, since the decorative paper used as the inorganic paper base paper is laminated on the inorganic wool base material, there is no deterioration in fire resistance, and there are many variations by printing and embossing as necessary. To provide a noncombustible decorative material that has a good appearance and is free from safety problems.

Example/ Parts by weight of aluminum hydroxide 7S, parts by weight of glass fiber S,
Using non-combustible paper (manufactured by Toyo Pulp Co., Ltd., /gORGS) with a basis weight of 97m, consisting of cellulose fiber/parts by weight and TiO2 as a printing base paper, first, a gravure ink was prepared using a polyvinyl butyral resin vehicle as a vehicle. (Morohoshi Ink Co., Ltd., KDTA) Y was used to print solidly (uniformly on the entire surface) using a gravure printing method so that the coating amount was 3 E//m, and on top of that, the following formulation of Nlux Screen I/G was applied. After printing an abstract pattern in three colors using a rotary silk screen printing method, it was foamed through a foaming oven at a temperature of 200°C to obtain a decorative sheet. Furthermore, the coating amount by silk screen printing is 5 g/n? (when dry)
And so.

Silk screen ink blended polyvinyl chloride resin 700 parts by weight Dioctyl phthalate 3θ l/Azodicarbonamide 5 u Zinc oxide 3 7/Titanium dioxide 2071 Antimony dioxide 3 parts by weight Obtained decorative sheet bath agent adhesive (manufactured by Sumitomo 3M) , S
BR adhesive ("Spray Glue 77") with a bulk specific gravity of 0.
2 rock wool board (manufactured by Nittobo Co., Ltd., heat insulation board No. 7) / Ol/nX spray painted and roll laminated and integrated, resulting in a non-combustible decorative material with excellent heat retention, insulation and sound absorption properties. I got 7.

The back side of the decorative sheet obtained in Example/Example/ was further coated with polyethylene biextrusion, and the coated side was further coated with an acrylic emulsion (manufactured by Diaponodo Co., Ltd., DB).
-4'A'lq) Coat with gelol for 10 minutes and immediately apply bulk specific gravity to 0. By roll laminating the optical surface of Yu's glass wool (Asahi Phi (Glass Co., Ltd., Glassron Wool)), a non-flammable cosmetic material was obtained that had excellent moisture-proofing properties in addition to heat retention, heat insulation and sound absorption properties.

Example 3 Gravure ink (manufactured by Moroboshi Ink Co., Ltd., MPF) using cellulose acetate resin yt vehicle on noncombustible paper similar to Example/
TC is used to print 3 colors of Abstract Butter on a gravure printing machine, and the final printing unit prints PVC resin paint (Moroboshi Ink Z).
MY ) was gravure coated at 1 Ojj/m to make a decorative sheet.

The obtained decorative sheet was subjected to paper embossing using a paper embossing machine, and was then integrated with a rock wool board similar to Example 1 using SBR adhesive as in Example 1. A non-twisted cosmetic material 7 was obtained which had excellent heat retaining properties, heat insulating properties, sound absorbing properties and moisture proofing properties, and which had a richly varied appearance due to embossing.

[Brief explanation of the drawing]

Figures 1 to S are all cross-sectional views showing the structure of the non-combustible makeup (12) of the present invention.
・・・・・・Adhesive layer 3・・・・・・・・・・・・Conversion Paper q・・・・・・・・・・・・Base Paper S・・・・・・・・・・・・Seal Printing 2......Transparent synthetic resin layer 7...
・・・・・・Concave Convex g・・・・・・・・・Moisture-proof layer patent applicant Dai Nippon Printing Co., Ltd. Agent Patent attorney Atsumi Konishi

Claims (1)

[Scope of Claims] (1) A makeup made of a non-combustible sheet with aluminum hydroxide held 2 to 10 times as much as cellulose fibers in a flap ratio on an inorganic wool base material through an adhesive. A noncombustible decorative material characterized by being made of laminated paper. (2) Non-combustible makeup according to claim (1), characterized in that it further has a protective layer made of transparent synthetic resin on the decorative paper) A non-combustible decorative material according to claim 1 or 2. (4) A non-combustible decorative material according to claim 1 or 2. The noncombustible decorative material according to any one of the ranges (1) to (3).