JP2021067100A - Interior skin material and ceiling material covered with this skin material - Google Patents

Abstract

To provide an interior skin material with excellent design and economy and provide a ceiling material which is exempt from "specific ceiling" even if it is used for a suspended ceiling with an area of more than 200 m2 at a height of more than 6 m.SOLUTION: A ceiling material is constituted that single-color printing is performed on both sides of a thin plain-woven glass cloth which is filler processed interior skin material with a predetermined specification with ink whose color is adjusted with medium, and further, a pattern is printed with ink whose color is adjusted with medium on one side of the single-color printed front surface. And the interior skin material covers and glues at least the front surface or the front surface and side surfaces of glass wool.SELECTED DRAWING: Figure 1

Description

The present invention relates to an interior skin material and also to a ceiling material that can be used for a ceiling ^{whose mass is required to be 2 kg / m 2 or less.}

The Building Standards Law Enforcement Ordinance, etc. was amended to stipulate measures for ceiling dropout of buildings in response to the fall damage of suspended ceilings caused by the 2011 off the Pacific coast of Tohoku Earthquake, and related notifications were issued based on the amendments. In this related notification, the structural method of the ceiling that is safe in terms of structural strength to which the "ceiling that may cause a serious danger due to falling off" (hereinafter referred to as "specific ceiling") should be stipulated. This specific ceiling is said to be " ^{a suspended ceiling with an area of 200 m 2} and a mass of ^{more than 2 kg / m 2} at a height of more than 6 m and installed in a place where people use it on a daily basis." Therefore, a ceiling structure having a mass of 2 kg / m ² or less is required.

The applicant of the present application has diligently proceeded with the development aiming at the weight reduction of the system ceiling (hereinafter referred to as "lightweight system ceiling"), and applied for a patent for the result. ) And Japanese Patent No. 5829348 (Patent Document 2). Even with the lightweight system ceiling disclosed here, ^{in order to reduce the mass to 2 kg / m 2} or less, it is necessary to use a suitable ceiling material, and the options are considerably limited. ..

As a technique for reducing the weight of the ceiling material, for example, there is a "non-combustible lightweight viscoelastic ceiling plate member configured on a vibration absorbing and vibration ceiling" disclosed in Patent Document 3. The problem is to "provide a non-combustible lightweight viscoelastic ceiling board member composed of a vibration-absorbing suspended ceiling that can absorb and suppress vibrations and displacements to the ceiling during an earthquake to prevent the ceiling from collapsing and falling." The solution is "a field edge rail directly attached to a hanging bolt fixed to a ceiling slab, and a ceiling plate member having at least light weight and flexibility to be inserted and attached to the field edge rail, and a ceiling configuration. Is composed of a fixed range ceiling portion in the central portion and a vibration absorbing range ceiling portion provided between the wall surface of the outer peripheral portion and the fixed range ceiling portion in the central portion. It is composed of a non-combustible lightweight viscoelastic ceiling plate composed of a plurality of members and a ceiling plate frame having a structure of fitting to the field edge rail provided at the peripheral edge of the non-combustible lightweight viscoelastic ceiling plate. " ..

Further, in order to reduce the weight of the ceiling material, glass cloth may be used as a skin material for glass wool or rock wool, but as a technique for solving the problem of glass cloth which is difficult to print, "for printing" disclosed in Patent Document 4 There is a "glass cloth". It has "flameproofness and high environmental resistance by providing an ink receiving layer and / or optionally a sealing treatment and a flameproof resin layer on the glass cloth, and also has ink drying property, ink color development property and water resistance. The purpose is to "provide a glass cloth for printing with excellent properties", and as a solution, "an ink receiving layer coated with an acrylic resin and / or a PVA resin with a pigment added is provided on the printing surface, and the ink receiving layer is provided. If desired, at least one of the lower surface and the back surface of the ink receiving layer is coated with a sealing treatment and / or a flameproof resin. "

Japanese Patent No. 5778365 Japanese Patent No. 5829348 Japanese Unexamined Patent Publication No. 2015-20152 JP-A-2002-326842

However, the ceiling plate member in the "non-combustible lightweight viscoelastic ceiling plate member configured on the vibration absorbing ceiling" disclosed in Patent Document 3 is "a viscoelastic member and a non-combustible sheet and / or a tarpaulin and / or a non-combustible waterproof sheet". "Consists of sticking with an adhesive" (described in claim 10), and is not subject to exclusion from "specific ceiling". Further, in the "glass cloth for printing" disclosed in Patent Document 4, the glass cloth is sealed to facilitate printing, but the glass cloth loses its flexibility due to the sealing treatment and is bent. Occasionally, "whitening" may occur in which the bent portion becomes whitish, or the fibers of the glass cloth may be cut, which may impair the design. Further, "For the formation of the ink receiving layer, an acrylic resin and / or a PVA-based resin solution containing the above pigment, adhesive, cationic compound, thickening agent, etc. is prepared and formed on one side or both sides of the glass cloth. It is performed by coating or impregnating ”(description in paragraph [0020]), but the applicant's knowledge is that the slight dents that occur at the points where the warp and weft of the glass cloth fiber overlap are coated or impregnated. If it is used alone, the ink will not enter and it will become white minute spots.

Therefore, the present invention provides an interior skin material having excellent design and economy, and ^{even if it is used for a suspended ceiling having a height of more than 6 m and an area of more than 200 m 2} , it is excluded from the "specific ceiling". The subject is to provide a ceiling material.

In order to achieve the above problems, the interior skin material according to claim 1 of the present application has a density of 54 threads / 25 mm to 62 threads / 25 mm, a thickness of 0.09 mm to 0.10 mm, and a mass of 87 g /. it m ² no glass cloth 101g / m ² is the sealing treatment, a single color printing has been printed substrate by intaglio printing in color tone adjusted ink single color Mejiumu on both sides is formed, it is characterized in that.
The interior skin material according to claim 2 of the present application is the interior skin material according to claim 1, and the viscosity of the ink used for intaglio printing is 15 to 18 seconds with the Zahn cup # 3. It is characterized in that the hardness of the rubber roll at the time of printing is 80 degrees or more.
The interior skin material according to claim 3 of the present application is the interior skin material according to claim 1 or 2, and the ink used for intaglio printing is substantially urethane-based resin based on medium. It is characterized in that a pigment is added to a solution in which isocyanates are added dropwise in a weight ratio of 5/100 with respect to a mixed solution blended so as to have a content of 10% to 20%.
Further, the interior skin material according to claim 4 of the present application is the interior skin material according to claims 1 to 3, and is an ink whose color tone is adjusted with medium on one surface of the printing base layer. The feature is that the pattern was printed by intaglio printing.
Further, the ceiling material according to claim 5 of the present application is characterized in that the interior skin material according to any one of claims 1 to 4 covers at least the surface or surface and side surface of glass wool and is glued. It is supposed to be.

The present invention has the following effects due to the above configuration.
(1) The interior skin material according to the present invention includes a thin plain weave glass cloth (diameter yarn density of 54/25 mm to 62/25 mm, thickness of 0.09 mm to 0.10 mm) that has been sealed. mass is a monochrome printing and print substrate by intaglio printing with ink and color tone adjustment to the single color in Mejiumu both sides of from 87 g / m ² no 101g / m ^2). Although the chemical action is not clear, when a thin plain woven glass cloth is sealed, the glass cloth loses its flexibility and becomes more water repellent to the ink, but it is similar to the resin component used for the sealing treatment. Alternatively, by printing with an ink mixed with medium containing a resin component that is compatible with the glass, the flexibility of the glass cloth is restored to some extent without impairing the effect of the sealing treatment, and the water repellency is lowered, making it easier to handle. When bent, "whitening" is less likely to occur, and the fibers are less likely to break. Further, since the mass is directed to a 87 g / m ² to 101g / m ² about thin glass cloth, of course as nonflammable, "specific ceiling" by selecting other suitable ceiling foundation member Is excluded. Intaglio printing forms a printing base layer that is more economical than other printing methods in which both sides of the glass cloth are coated. In addition, by printing white on both sides as a single color, even when glass wool is used as the base material (core material) of the ceiling material, the yellow color of the glass wool itself can be seen through the glass cloth, making it difficult to see. When the glass cloth according to the present invention is used for the ceiling of a gymnasium or the like, even if the above-mentioned "whitening" occurs due to the impact of a ball or the like, it becomes completely inconspicuous.
(2) When printing the printing base layer intaglio, the ink viscosity of the Zahn cup # 3 is set to 15 to 18 seconds, and the hardness of the rubber roll used is set to 80 degrees or more, so that not only the ink bleeding is reduced but also the ink bleeding is reduced. The ink penetrates firmly into the recesses where the warp and weft of the glass cloth fiber overlap. This effect is due to the synergistic effect of the ink viscosity and the hardness of the rubber roll. The hardness of the rubber roll is more preferably 85 degrees, which is harder.
(3) By using urethane-based resin as the ink for concave printing without pigments, the emission of volatile organic compounds such as formaldehyde is extremely reduced, and urethane-based resin is approximately 10% or more based on medium. When a solution in which 5/100 of isocyanates are added dropwise to the mixed solution prepared so as to be 20% is used, the isocyanates are added to the OH groups of the urethane resin over time. It was found that the adhesion to the glass cloth fiber is enhanced by the reaction and hardening.
(4) By printing a pattern by intaglio printing with ink whose color tone has been adjusted with medium on one surface, which is the surface of the printing base layer, various patterns with richer design can be provided, and a ceiling material or wall made of non-combustible material can be provided. When used as a material, it can provide a rich space that cannot be brewed with a single color.
(5) By gluing the interior skin material of the present invention to the surface of glass wool to form a ceiling material, for example, only the surface of the ceiling material such that the ceiling material is fitted into a frame suspended from a floor slab can be visually recognized. Can be used in place. Further, by using the interior skin material of the present invention as a ceiling material in which the surface and side surfaces of glass wool are coated and glued, the side surface of the ceiling material is used for a ceiling having a structure in which the side surface of the ceiling material is hung from the frame. it can. Even if the interior skin material according to the present invention is bent to cover the side surface, "whitening" in which the bent portion becomes whitish is unlikely to occur, so that there is no risk of impairing the design.
(6) Since the interior skin material of the present invention is approximately 150 g / m ² to 190 g / m ² , the ceiling material itself is approximately 1, by using glass wool having a specific gravity of 40 kg / m ^{3 and a thickness of 25 mm.} Since it is 150 g / m ² to 1,200 g / m ² , it is possible to sufficiently reduce the mass to be excluded from the "specific ceiling" to 2 kg / m ² or less, and the ceiling is excellent in design and economy. It becomes a material.

FIG. 1 is a schematic cross-sectional configuration diagram of an interior skin material according to an embodiment. FIG. 2 is a schematic cross-sectional view of the ceiling material according to the embodiment.

Examples according to the embodiment for carrying out the present invention will be described with reference to FIGS. 1 and 2. In FIGS. 1 and 2, reference numeral 1 is a ceiling material according to an embodiment, reference numeral 10 is an interior skin material, reference numeral 11 is a glass cloth, reference numeral 12 is a printing base layer, reference numeral 13 is a pattern printing layer, and reference numeral 20 is glass wool. ,.

First, the interior skin material 10 according to the embodiment will be described with reference to FIG.
The glass cloth 11 used for the interior skin material 10 needs to be selected from the viewpoint of consideration for "specific ceiling" and print compatibility. As a result of various studies, the applicant of the present application has found that the so-called thin yarn has a density of 54 yarns / 25 mm to 62 yarns / 25 mm, a thickness of 0.09 mm to 0.10 mm, and a mass of 87 g / m ² to 101 g. It was found that a plain weave glass cloth of / m ^{2 is suitable.}

The thin glass cloth 11 is provided with a sealing treatment that prevents it from stretching in the tensile direction when a tensile force is applied in an oblique direction with respect to the orthogonal diameter yarn and weft yarn directions, and prevents fraying during cutting. Use things. The sealing treatment is performed with one selected from an aqueous solution of acrylic resin, an aqueous solution of vinyl acetate resin, and an aqueous solution of polyester resin. Table 1 shows the specifications of the glass cloth 11 before the sealing treatment used in the examples. The mass of the glass cloth 11 after the sealing treatment is approximately 106 g / m ² .

The printing base layer 12 is formed on both sides of the glass cloth 11 which has been subjected to the sealing treatment, and the pattern printing layer 13 is further formed on one of the printing base layers 12. The printing base layer 12 and the pattern printing layer 13 are formed by intaglio printing using an ink containing a polyurethane resin in an amount of 15% to 20% by weight. In the examples, Table 2 shows the resin content and the resin content of the ink used for white printing with white as a single color and pattern printing. Further, in the example, the pigment was added to a solution in which 5/100 of isocyanates were added dropwise by weight ratio of isocyanates to a mixed solution prepared so that the polyurethane resin was approximately 10% to 20% using medium as a diluent. I used the one.

By applying a sealing treatment to the glass cloth 11, the glass cloth itself loses its flexibility to some extent and tends to increase the water repellency to the ink. However, by printing in a single color with the ink diluted with medium, the flexibility and the repellency to the ink are obtained. Aqueous is restored. The applicant of the present application has not clarified what kind of chemical change restores flexibility and water repellency. In the present invention, the printing base layer 12 is formed on both sides of the glass cloth 11 by printing on the entire surface with ink whose color tone is adjusted to white with medium on both sides. In the ceiling material 1 described later, glass wool 20 is used as the base material (core material), but in this case, the yellow color of the glass wool 20 becomes difficult to see through the glass cloth 11.

A pattern printing layer 13 is further formed on one printing base layer 12. By printing this pattern, it is possible to provide various patterns with rich design. In this case, since the white color of the printing base layer 12 can be used as the background color, even if the pattern printing layer 13 is a single layer, it is possible to obtain patterns of various designs. Therefore, only two printing layers are required on the surface of the interior skin material 10, which also contributes to weight reduction of the ceiling material.

Both the printing base layer 11 and the pattern printing layer 12 are formed by intaglio printing, but the viscosity of the ink used should be 15 to 18 seconds with the viscometer of Zahn Cup # 3, and the hardness of the rubber roll used should be as hard as 80 degrees or more. However, in the examples, the hardness of the rubber roll is set to 85 degrees, which is even harder. As a result, the ink penetrated firmly into the slight dents where the warp and weft of the glass cloth overlap, and the ink paste on the glass cloth that had been sealed was further improved.

Next, the ceiling material 1 according to the embodiment will be described with reference to FIG. As schematically shown in FIG. 2, the ceiling material 1 uses glass wool 20 as a base material or a core material, and its thickness is 25 mm, and the front surface and side surfaces of the glass wool 20 and a part of the back surface thereof. Is covered with the interior skin material 10. With this configuration, the mass of the ceiling material 1 is about ^{1,200 g / m 2.} Incidentally, since the mass of the lightweight system ceiling base (Patent No. 5829348) by the applicant of the present application is approximately 650 g / m ² , the mass of the lightweight system ceiling itself is approximately 1,850 g / m ² , even if it exceeds 6 m. Even if it is installed in a place where people use it on a daily basis with a suspended ceiling with ^{an area of more than 200 m 2} at a height, it is not subject to the "specific ceiling".

The interior skin material 10 and the glass wool 20 are glued to each other, but in the embodiment, a glass cloth 11 having both sides printed in white on the interior skin material 10 and a pattern printed on one side is used. Therefore, the unevenness on the surface of the glass wool 20 does not appear conspicuously on the surface of the interior skin material 10 and does not affect the design. Further, in the examples, a styrene-butadiene rubber-based adhesive is used as the adhesive from the viewpoint of ease of handling. Therefore, the ceiling material according to the present invention emits extremely little volatile organic compounds such as formaldehyde, and does not cause any health problem.

1 Ceiling material according to the example 10 Interior skin material 11 Glass cloth 12 Printing base layer 13 Pattern printing layer 20 Glass wool

Claims (5)

It density of径糸54 present / 25mm to 62 present / 25mm, thickness no 0.09 mm 0.10 mm, mass to 87 g / ^{m 2} there is no glass cloth 101g / ^{m 2} are sealing treatment, Mejiumu on both surfaces An interior skin material characterized in that a printing base layer is formed by printing in a single color by intaglio printing with an ink whose color tone has been adjusted to a single color. The interior use according to claim 1, wherein the ink viscosity used for intaglio printing is such that the viscosity of the Zahn cup # 3 is 15 to 18 seconds, and the hardness of the rubber roll at the time of printing is 80 degrees or more. Skin material. The ink used for intaglio printing is a solution obtained by dropping 5/100 of isocyanates in a weight ratio to a mixed solution containing medium as a base and a urethane resin of approximately 10% to 20%. The interior skin material according to claim 1 or 2, wherein the pigment is added. The interior skin material according to claim 1 to 3, wherein a pattern is printed on one surface of the printing base layer by intaglio printing with an ink whose color tone is adjusted with medium. A ceiling material according to any one of claims 1 to 4, wherein the interior skin material covers at least the surface or the surface and the side surface of glass wool and is glued.

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