JP4251083B2

JP4251083B2 - Interior decorative board

Info

Publication number: JP4251083B2
Application number: JP2004016067A
Authority: JP
Inventors: 清岡本; 茂樹内藤
Original assignee: Panasonic Corp; Matsushita Electric Works Ltd
Current assignee: Panasonic Corp; Panasonic Electric Works Co Ltd
Priority date: 2004-01-23
Filing date: 2004-01-23
Publication date: 2009-04-08
Anticipated expiration: 2024-01-23
Also published as: JP2005207156A

Description

本発明は、化粧ボードに関する。さらに詳しくは、吸放湿性等、調湿機能を有するとともに、ホルムアルデヒド等の化学物質の吸着能をも有し、かつ、表面装飾効果に優れた内装用化粧ボードに関する。 The present invention relates to a decorative board. More specifically, the present invention relates to a decorative board for interior use that has a moisture control function such as moisture absorption and desorption and has an ability to adsorb chemical substances such as formaldehyde and has an excellent surface decoration effect.

近年、省エネルギーの観点から住宅の気密化が進んでおり、そのため、湿気が室内にこもり、結露やカビの発生の原因の一つとなっている。例えば、コンクリート系の外壁を有する住宅においては、湿気がコンクリートを通して侵入し易く、断熱も困難であるため、とくに、温度低下の著しい地下室等では壁面に結露や、カビが生じ、木材やクロス等の染み、汚れなどの原因となり、また、健康上の問題も懸念される。 In recent years, airtightness of houses has been promoted from the viewpoint of energy saving, and therefore, moisture has accumulated in the room, which is one of the causes of condensation and mold. For example, in a house with a concrete outer wall, moisture can easily enter through the concrete and heat insulation is difficult. It causes stains and dirt, and there are concerns about health problems.

さらに、内装用のクロスや化粧シートの接着に用いられた接着剤、あるいは家具に用いられた接着剤、塗料等から発生するホルムアルデヒド等、揮発性の化学物質が上記住宅の高気密性と相まって居住環境に滞留し、目、鼻、のど等に不調が現れるシックハウス症候群を惹き起こし、深刻な社会問題となっている。このような問題を解決するために、既に各種の提案がなされているが、必ずしも満足すべきものとはいえない。
特開２０００−４３２２１号公報（第１−５頁、第１図）特開平９−３２４０６２号公報（第１−３頁）特開２００２−２３５３８２号公報（第１−４頁）特開２００３−２５３１０号公報（第１−４頁、第１〜２図） In addition, volatile chemicals such as formaldehyde generated from adhesives used for interior cloths and decorative sheets, furniture used in furniture, paints, etc. are combined with the high airtightness of the above houses. It stays in the environment and causes sick house syndrome that causes problems in the eyes, nose, throat, etc., which is a serious social problem. Various proposals have already been made to solve such problems, but this is not necessarily satisfactory.
Japanese Unexamined Patent Publication No. 2000-43221 (page 1-5, FIG. 1) JP-A-9-324062 (page 1-3) JP 2002-235382 A (page 1-4) JP 2003-25310 A (page 1-4, FIGS. 1-2)

本発明は上記した問題点を解決して、室内の湿気が多いときは、空気中の水分や結露水を吸収し、乾燥したときは吸収した水分を放出して調湿することが可能で、かつ、ホルムアルデヒド等、揮発性の化学物質を吸着、除去することができるとともに、表面装飾効果に優れた内装用化粧ボードを提供することを、その課題とする。 The present invention solves the above-mentioned problems, and when the humidity in the room is high, it can absorb moisture and condensed water in the air, and when dried, it can release the absorbed moisture to adjust the humidity. In addition, an object of the present invention is to provide an interior decorative board that can adsorb and remove volatile chemical substances such as formaldehyde and has an excellent surface decoration effect.

本発明は、上記課題を解決するために考え出されたものであって、つぎのような技術的手段を講じている。すなわち、本発明によれば、調湿性基材と化粧シートとを貼着してなる内装用ボードにおいて、該調湿性基材の接着面を化学物質吸着材を含むシーラーで処理し、その後、溶剤系接着剤により上記化粧シートを接着し、さらに、穿孔機により径０．５〜２．０ｍｍの細孔を穿孔するとともに、その開孔率が０．５〜２．０％であり、溶剤系接着剤により化粧シートが接着された後の表面に、細孔が、化学物質吸着材を含むシーラーで処理された調湿性基材層に達するように穿孔されたことを特徴とする内装用化粧ボードが提供される。
The present invention has been devised to solve the above-described problems, and has the following technical means. That is, according to the present invention, in the interior board formed by attaching the humidity-controlling substrate and the decorative sheet, the adhesive surface of the humidity-controlling substrate is treated with a sealer containing a chemical substance adsorbent, and then the solvent adhering the decorative sheet by system adhesive, further, with drilling pore diameter 0.5~2.0mm by punches, Ri their porosity is from 0.5 to 2.0 percent der, solvent Interior decoration, characterized in that pores are perforated on the surface after the decorative sheet is bonded with a base adhesive so as to reach a humidity-controlling base material layer treated with a sealer containing a chemical substance adsorbent A board is provided.

上記穿孔される孔の形状は円形、矩形等とくに限定されず、好ましくは孔径が０．５〜１．５ｍｍとされる。上記孔径は矩形の場合は対角線とし、円形の場合は直径とする。上記孔径、開孔率を上記範囲より小さくすると調湿機能を保持することが困難となり、また、上記範囲より大きくすると見栄えが悪く、デザイン性に劣ったものとなるため好ましくない。 The shape of the hole to be perforated is not particularly limited, such as circular or rectangular, and the hole diameter is preferably 0.5 to 1.5 mm. The hole diameter is a diagonal line in the case of a rectangle and a diameter in the case of a circle. If the pore diameter and the area ratio are smaller than the above ranges, it is difficult to maintain the humidity control function, and if it is larger than the above ranges, the appearance is poor and the design is poor.

上記シーラーとしては、無機材料とのなじみがよく、浸透性液体であればとくに限定されるものではないが、アクリル樹脂系、ウレタン樹脂系等のエマルジョン塗料あるいは溶剤系塗料が好適に使用される。また、このシーラーに含まれる化学物質吸着材としては、例えば、活性炭、ゼオライト、珪藻土等の化学物質吸着材、あるいは、ホルムアルデヒドと反応して化学的に固定するイミダゾール類、アミン類、アミド類等の各種化合物が単独または混合して使用される。上記化学物質吸着材を含むシーラーで調湿性基材の接着面を処理して、化粧シートと貼着する。このときに用いられる接着剤としては、酢酸ビニル系、およびその変性系樹脂、ウレタン系樹脂等公知の溶剤系接着剤が用いられ、固形分を３０〜７０％として好適に使用される。 The sealer is not particularly limited as long as it is familiar with inorganic materials and is a permeable liquid, but an acrylic resin-based, urethane resin-based emulsion paint or solvent-based paint is preferably used. The chemical adsorbent contained in the sealer includes, for example, activated carbon, zeolite, diatomaceous earth and other chemical substance adsorbents, or imidazoles, amines, amides, etc. that are chemically fixed by reacting with formaldehyde. Various compounds are used alone or in combination. The adhesive surface of the humidity-controlling substrate is treated with a sealer containing the chemical substance adsorbing material and attached to a decorative sheet. As an adhesive used at this time, known solvent-based adhesives such as vinyl acetate, modified resins thereof, and urethane resins are used, and are preferably used with a solid content of 30 to 70%.

上記化粧シートは、デザインされた紙または不織布からなるとともに、その坪量が３０〜１００ｇ／ｍ²とされる。また、透湿量が２００ｇ／ｍ²・２４時間（ＪＩＳＺ−０２０８、４０℃、９０％ＲＨ）以上であることが好ましい。さらに、化粧面に汚れや傷が付くことを防止するため、表面保護コーティングされることが好ましい。上記坪量が１００ｇ／ｍ²を超えると化粧シート自体の透湿性が悪くなるため、上記した穿孔によって目的とする調湿効果を得ることができず、また、坪量が３０ｇ／ｍ²より小さい場合は、強度上の問題があるため好ましくない。 While the said decorative sheet consists of designed paper or a nonwoven fabric, the basic weight shall be 30-100 g / m < ² >. The moisture permeability is preferably 200 g / m ² · 24 hours (JISZ-0208, 40 ° C., 90% RH) or more. Furthermore, in order to prevent the decorative surface from being stained or scratched, it is preferable that a surface protective coating is applied. When the basis weight exceeds 100 g / m ² , the moisture permeability of the decorative sheet itself is deteriorated, so that the intended humidity control effect cannot be obtained by the above perforation, and the basis weight is less than 30 g / m ^2. In this case, there is a problem in strength, which is not preferable.

上記調湿性基材が無機繊維類と調湿性無機材料とからなるとともに、調湿性の尺度である吸湿量が２００〜３００ｇ／ｍ²・２４時間であることが好ましい。なお、上記吸湿量の測定方法については実施例において詳述する。無機繊維類としてはロックウール、グラスウール等が好ましく用いられ、調湿性無機材料としてはゼオライト、珪藻土、シリカゲル、木炭、竹炭等が好ましく用いられる。 The humidity control substrate is preferably composed of inorganic fibers and a humidity control inorganic material, and the moisture absorption, which is a measure of humidity control, is 200 to 300 g / m ² · 24 hours. The method for measuring the amount of moisture absorption will be described in detail in Examples. As the inorganic fibers, rock wool, glass wool and the like are preferably used, and as the humidity control inorganic material, zeolite, diatomaceous earth, silica gel, charcoal, bamboo charcoal and the like are preferably used.

これらに必要に応じて、水酸化アルミ、石膏、水ガラス等の無機バインダー、あるいは酢酸ビニル、でんぷん、コーンスターチ、カゼイン、ふのり等の有機バインダーを添加し、これらの存在下にボード状に成型し、調湿性基材とする。 If necessary, add inorganic binders such as aluminum hydroxide, gypsum, water glass, etc., or organic binders such as vinyl acetate, starch, corn starch, casein, funari, etc. A humidity-controlling substrate is used.

上記調湿性基材の裏面にさらに防湿処理が施されることが好ましい。この防湿処理は、塗料を塗布してもよく、また、シートを貼着してもよい。上記塗料としては、アクリル樹脂系、ウレタン樹脂系塗料が好ましく用いられ、シートとしては、オレフィン樹脂系、ポリエステル樹脂系シートが好ましく用いられ、また、紙または不織布に金属箔をラミネートした複合シートを貼着してもよい。 It is preferable that a moisture-proof treatment is further applied to the back surface of the humidity-controlling substrate. In this moisture-proof treatment, a paint may be applied or a sheet may be stuck. As the paint, acrylic resin-based and urethane resin-based paints are preferably used, and as the sheet, olefin resin-based and polyester resin-based sheets are preferably used, and a composite sheet obtained by laminating metal foil on paper or nonwoven fabric is pasted. You may wear it.

上記穿孔が機械的穿孔法により行われることが好ましい。例えば、丸棒状のピンを有するオルゴール式穿孔機による方法、あるいは歯車の円周に円錐状、四角錐状の突起を設け、これらの突起を回転して連続的に穿孔する穿孔機を用いる方法等、種々の公知の機械的穿孔法が適用可能である。 The perforation is preferably performed by a mechanical perforation method. For example, a method using a music box type drilling machine having a round bar-like pin, or a method using a drilling machine in which conical and square pyramidal projections are provided on the circumference of a gear, and these projections are rotated to continuously drill. Various known mechanical drilling methods can be applied.

請求項１に記載の発明は上記のとおりであり、とくに、穿孔機により径０．５〜２．０ｍｍの細孔を穿孔するとともに、その開孔率が０．５〜２．０％とされているため、室内空間の湿度が高いときは水分が上記細孔を通して調湿性基材に吸収され、室内空間が乾燥しているときは調湿性基材から水分が細孔を通して放出され、室内の調湿を可逆的に行うことができる。さらに、該調湿性基材の接着面を化学物質吸着材を含むシーラーで処理しているため、接着剤中、あるいは室内空気中の有害な化学物質を吸着、除去できる。 The invention according to claim 1 is as described above, and in particular, the pores having a diameter of 0.5 to 2.0 mm are perforated by a perforator, and the aperture ratio is 0.5 to 2.0%. Therefore, when the humidity of the indoor space is high, moisture is absorbed by the humidity control substrate through the pores, and when the indoor space is dry, moisture is released from the humidity control substrate through the pores. Humidity adjustment can be performed reversibly. Furthermore, since the adhesive surface of the humidity control substrate is treated with a sealer containing a chemical substance adsorbent, harmful chemical substances in the adhesive or indoor air can be adsorbed and removed.

上記化粧シートがデザインされた紙または不織布からなるとともに、その坪量が３０〜１００ｇ／ｍ²であり、かつ、透湿量が２００ｇ／ｍ²・２４時間（ＪＩＳ法）以上であるため、上記細孔からの吸放湿と相まって効果的に調湿を行うことができる。 Together consist of the decorative sheet designed paper or nonwoven fabric, since its basis weight of 30 to 100 g / m ^2, and is the amount of moisture permeation is 200g / m ² · 24 hours (JIS method) or more, the Humidity can be effectively controlled in combination with moisture absorption / release from the pores.

上記調湿性基材が無機繊維類と調湿性無機材料とからなるとともに、吸湿量が２００〜３００ｇ／ｍ²・２４時間とされているため、調湿を効果的に行うことができる。また、上記調湿性基材の裏面にさらに防湿処理が施されているため、下地からの湿気の侵入を防ぎ、下地との裏面接着性を良好にすることができる。また、上記穿孔が機械的穿孔法により行われるため、連続的に作業性よく、穿孔することができる。 While the humidity control substrate is composed of inorganic fibers and a humidity control inorganic material, and the moisture absorption is 200 to 300 g / m ² · 24 hours, humidity control can be performed effectively. Further, since the moisture-proofing treatment is further applied to the back surface of the humidity-controlling substrate, it is possible to prevent moisture from entering from the base and improve the back-surface adhesion to the base. Further, since the above-described drilling is performed by a mechanical drilling method, it is possible to continuously drill with good workability.

以下、本発明の実施形態について図面を参照して、詳細に説明する。図１は、本発明にかかる内装用化粧ボードＡの製造工程の概略を示す模式図である。まず、図１に示すように、調湿性基材１の化粧シート４との接着面に化学物質吸着材を含むシーラー２を塗布、乾燥させ、このシーラー２の上に接着剤３を塗布して化粧シート４を貼着し、さらに、調湿性基材１の裏面に防湿用塗料５を塗布して複合ボードＢを形成する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing an outline of the production process of the interior decorative board A according to the present invention. First, as shown in FIG. 1, a sealer 2 containing a chemical substance adsorbent is applied to the adhesive surface of the humidity control substrate 1 with the decorative sheet 4, dried, and an adhesive 3 is applied on the sealer 2. A decorative sheet 4 is attached, and a moisture-proof paint 5 is applied to the back surface of the humidity control substrate 1 to form a composite board B.

ついで、丸棒型の打ち抜きピンを有するオルゴール式穿孔機Ｓで、孔径０．５〜１．５ｍｍの細孔６を連続的に穿ち、その開孔率が０．５〜２．０％となるようにして本発明にかかる内装用化粧ボードＡを得る。上記した細孔６は、調湿性基材１層に達しているため、室内空間の湿度が高いときは水分が細孔６を通して調湿性基材１に吸収され、室内空間が乾燥しているときは調湿性基材１から水分が細孔６を通して放出され、このように吸放湿を可逆的に行うことにより室内の調湿が効果的に行われる。また、接着剤３中に含まれるホルムアルデヒド等の有害物質はシーラー２に混在された活性炭等の化学物質吸着材と接触して吸着、除去される。 Next, with the music box type drilling machine S having a round bar type punching pin, holes 6 having a hole diameter of 0.5 to 1.5 mm are continuously drilled, and the hole area ratio becomes 0.5 to 2.0%. Thus, the interior decorative board A according to the present invention is obtained. Since the above-described pores 6 reach the humidity control substrate 1 layer, when the humidity of the indoor space is high, moisture is absorbed by the humidity control substrate 1 through the pores 6 and the indoor space is dry. The moisture is released from the humidity control substrate 1 through the pores 6, and the humidity control in the room is effectively performed by reversibly absorbing and releasing moisture. Further, harmful substances such as formaldehyde contained in the adhesive 3 are adsorbed and removed in contact with a chemical adsorbent such as activated carbon mixed in the sealer 2.

以下実施例により本発明をさらに詳細に説明する。なお、実施例、比較例における性能評価は下記に示す方法により行った。
[調湿性]
調湿性を吸湿量により評価した。すなわち、２５℃、湿度５０％で供試サンプルの表面以外をアルミテープでシールして養生し、２５℃、湿度９０％の雰囲気下で２４時間吸湿させ、吸湿量を次式により求めた。吸湿量（ｇ／ｍ²・２４時間）＝｛Ｗ２ｇ（２５℃、湿度９０％、２４時間吸湿した後の重量）−Ｗ１ｇ（２５℃、湿度５０％で養生後の重量）｝／供試サンプル表面積（ｍ²）。この吸湿量が１５０ｇ／ｍ²・２４時間以上のときを調湿性良好○、１００〜１５０ｇ／ｍ²・２４時間のときを調湿性普通△として調湿性を判断した。 Hereinafter, the present invention will be described in more detail with reference to examples. In addition, the performance evaluation in an Example and a comparative example was performed by the method shown below.
[Humidity control]
The humidity control was evaluated by the amount of moisture absorption. That is, the surface other than the surface of the test sample was sealed with aluminum tape at 25 ° C. and a humidity of 50%, and was allowed to absorb moisture in an atmosphere of 25 ° C. and a humidity of 90% for 24 hours. Moisture absorption (g / m ² · 24 hours) = {W2g (weight after moisture absorption at 25 ° C., humidity 90%, 24 hours) −W 1 g (weight after curing at 25 ° C., humidity 50%)} / test sample Surface area (m ² ). The moisture absorption 150g / m ² · 24 hours or more Humidity good time ○, was determined the humidity conditioning Average △ As Humidity When 100~150g / m ² · 24 hours.

[表面拭き取り性]
クレヨンにて１０ｃｍの長さの線を引き、２４時間後に容易に拭き取れるか否かを評価した。容易に拭き取れる場合を○、拭き取りが困難な場合を×、その中間を△とした。 [Surface wipeability]
A 10 cm long line was drawn with a crayon, and it was evaluated whether it could be easily wiped off after 24 hours. The case where it was easy to wipe off was marked with ◯, the case where it was difficult to wipe off was marked with ×, and the middle was marked with Δ.

[外観意匠性]
目視により判断し、優れている場合を○、劣っている場合を×、その中間を△とした。 [Appearance design]
Judgment was made by visual observation, and the case where it was excellent was rated as “◯”, the case where it was inferior as “×”, and the middle as “Δ”.

[表面粉落ち]
目視により判断し、粉落ちがほとんど見られない場合を○、粉落ちが激しい場合を×、その中間を△とした。 [Surface dust]
Judgment was made by visual observation, and a case where almost no powder fall was observed was marked with ◯, a case where powder fall was severe was marked with X, and an intermediate between them was marked with Δ.

[消臭性]
空間の酢酸濃度を１００ｐｐｍとなるように調整し、気積（供試サンプルの体積（ｃｍ³）／空間の体積（ｃｍ³））が５．６％となるようにして供試サンプルを空間に放置し、２４時間経過後の臭気を官能評価した。酢酸の臭気が感知されない場合を○、感知される場合を×、その中間を△とした。 [Deodorization]
Adjust the acetic acid concentration in the space to 100 ppm, and place the test sample in the space so that the volume (sample volume (cm ³ ) / space volume (cm ³ )) is 5.6%. The odor after 24 hours was subjected to sensory evaluation. The case where the odor of acetic acid was not detected was indicated as ◯, the case where it was detected as ×, and the middle as △.

[裏面接着性]
石膏ボードと裏面に防湿処理をしていない供試サンプルとを酢酸ビニル系接着剤で接着させ、１週間養生した後、接着強度を測定した。平面引張り強度で１ｋｇｆ／ｃｍ²以上ならば○、１ｋｇｆ／ｃｍ²未満ならば×で表した。 [Back side adhesion]
The gypsum board and the test sample that had not been moisture-proofed on the back surface were adhered with a vinyl acetate adhesive, and after curing for 1 week, the adhesive strength was measured. When the plane tensile strength is 1 kgf / cm ² or more, it is indicated as “◯”, and when it is less than 1 kgf / cm ^2, it is indicated as “x”.

ロックウール５０重量％にＢ型シリカゲルを１０重量％配合し、水酸化アルミ、でんぷん等を加えてよく混合し、成型後乾燥して調湿性基材１を作製した。まず、上記調湿性基材１そのものの吸湿量を上記に述べた方法により測定したところ、２５０ｇ／ｍ²・２４時間であった。ついで、シーラー２としてアクリル系エマルジョン塗料に活性炭を５重量％加えたものを、上記調湿性基材１の接着面に塗布量２００ｇ／ｍ²で塗布し、１５０℃で２０分乾燥させた。同時に、上記調湿性基材１の裏面にアクリル系エマルジョン塗料のみを塗布量２００ｇ／ｍ²で塗布して防湿処理を施し、同様にして乾燥させた。 10% by weight of B-type silica gel was blended with 50% by weight of rock wool, aluminum hydroxide, starch and the like were added and mixed well. First, when the moisture absorption amount of the humidity control substrate 1 itself was measured by the method described above, it was 250 g / m ² · 24 hours. Next, an acrylic emulsion paint added with 5% by weight of activated carbon as the sealer 2 was applied to the adhesive surface of the humidity control substrate 1 at a coating amount of 200 g / m ² and dried at 150 ° C. for 20 minutes. At the same time, only the acrylic emulsion paint was applied to the back surface of the humidity-controlling substrate 1 at a coating amount of 200 g / m ² to give a moisture-proof treatment and dried in the same manner.

化粧シート４として模様を印刷した紙（坪量３０ｇ／ｍ²）を用い、この紙の接着面にウレタン系２液型溶剤系接着剤を塗布量１００ｇ／ｍ²で塗布し、上記シーラー処理した調湿性基材１と貼り合わせ、０．５ｋｇ／ｃｍ²で２４時間圧締して複合ボードＢを得た。このようにして得られた複合ボードＢに丸棒型の打ち抜きピンを有するオルゴール式穿孔機で孔径が０．８ｍｍ、開孔率が１．５％となるように穿孔し、本発明にかかる内装用化粧ボードＡを得た。このようにして得られた内装用化粧ボードＡの吸湿量は１６０ｇ／ｍ²・２４時間であった。性能評価をまとめて表１に示す。
[比較例１]
化粧シート４として、厚さ４μの模様を印刷したオレフィンシートを用いた以外は実施例１と同様にして供試サンプルを得た。このサンプルの吸湿量は１００ｇ／ｍ²・２４時間であった。性能評価をまとめて表１に示す。
[比較例２]
化粧シート４として、模様を印刷した厚さ４μのオレフィンシートを用い、孔径を０．８ｍｍ、開孔率を５．０％となるように穿孔した以外は実施例１と同様にして供試サンプルを得た。このサンプルの吸湿量は１６０ｇ／ｍ²・２４時間であった。細孔が目立ったため、外観がよいものとはいえなかった。性能評価をまとめて表１に示す。
[比較例３]
実施例１におけるウレタン系２液型溶剤系接着剤に代えてＰＵＲ（反応性ホットメルト）を塗布量４０ｇ／ｍ²で塗布し、６０℃に加熱下、ロールにて圧締して調湿性基材１と化粧シート４とを貼り合わせた以外は、実施例１と同様にして供試サンプルを得た。このサンプルの吸湿量は１２０ｇ／ｍ²・２４時間であった。性能評価をまとめて表１に示す。
[比較例４]
実施例１におけるシーラー２として、活性炭無添加でアクリル系エマルジョン塗料のみを、調湿性基材１の接着面に塗布量２００ｇ／ｍ²で塗布し、１５０℃で２０分乾燥させた以外は実施例１と同様にして供試サンプルを得た。このサンプルについて消臭性の評価を行った。性能評価を表２に示す。
[比較例５]
実施例１において、調湿性基材１の裏面に塗装せず、防湿処理を施さない以外は実施例１と同様にして供試サンプルを得た。このサンプルについて、裏面接着性の評価を行った。性能評価を表３に示す。
[比較例６]
石膏ボード表面に珪藻土入り調湿塗り壁材を塗布量１５００ｇ／ｍ²で塗布し、乾燥する従来法で供試サンプルを作製した。このサンプルの吸湿量は１００ｇ／ｍ²・２４時間であった。性能評価をまとめて表１に示す。 Using a paper (basis weight 30 g / m ² ) on which a pattern was printed as the decorative sheet 4, a urethane two-component solvent-based adhesive was applied to the adhesive surface of the paper at a coating amount of 100 g / m ² and the sealer treatment was performed. The composite board B was obtained by bonding to the humidity control substrate 1 and pressing for 24 hours at 0.5 kg / cm ² . The composite board B thus obtained was perforated with a music box type drilling machine having a round bar type punching pin so that the hole diameter was 0.8 mm and the hole area ratio was 1.5%. A decorative board A was obtained. The moisture absorption of the interior decorative board A thus obtained was 160 g / m ² · 24 hours. Table 1 summarizes the performance evaluation.
[Comparative Example 1]
A test sample was obtained in the same manner as in Example 1 except that an olefin sheet printed with a pattern having a thickness of 4 μm was used as the decorative sheet 4. The moisture absorption of this sample was 100 g / m ² · 24 hours. Table 1 summarizes the performance evaluation.
[Comparative Example 2]
A test sample was prepared in the same manner as in Example 1 except that a 4 μm thick olefin sheet printed with a pattern was used as the decorative sheet 4 and the hole diameter was 0.8 mm and the hole area ratio was 5.0%. Got. The moisture absorption of this sample was 160 g / m ² · 24 hours. Since the pores were conspicuous, the appearance was not good. Table 1 summarizes the performance evaluation.
[Comparative Example 3]
Instead of the urethane two-component solvent adhesive in Example 1, PUR (reactive hot melt) was applied at a coating amount of 40 g / m ² , heated to 60 ° C., and pressed with a roll to control the humidity control group. A test sample was obtained in the same manner as in Example 1 except that the material 1 and the decorative sheet 4 were bonded together. The moisture absorption of this sample was 120 g / m ² · 24 hours. Table 1 summarizes the performance evaluation.
[Comparative Example 4]
As the sealer 2 in Example 1, only the acrylic emulsion paint without activated carbon was applied to the adhesive surface of the humidity-controlling substrate 1 at a coating amount of 200 g / m ² and dried at 150 ° C. for 20 minutes. A test sample was obtained in the same manner as in Example 1. This sample was evaluated for deodorizing properties. The performance evaluation is shown in Table 2.
[Comparative Example 5]
In Example 1, a test sample was obtained in the same manner as in Example 1 except that the back surface of the humidity-controlling substrate 1 was not coated and no moisture-proofing treatment was performed. About this sample, back surface adhesiveness evaluation was performed. Table 3 shows the performance evaluation.
[Comparative Example 6]
A test sample was prepared by a conventional method in which a moisture-adjusted coating wall material containing diatomaceous earth was applied to the surface of the gypsum board at an application amount of 1500 g / m ² and dried. The moisture absorption of this sample was 100 g / m ² · 24 hours. Table 1 summarizes the performance evaluation.

以上の結果から、本発明にかかる内装用化粧ボードＡは、吸放湿性に優れているとともに、消臭性等、悪臭成分の吸着性にも優れていることが明らかである。さらに表面拭き取り性も良好であるため、汚れや傷が付き難く、下地との接着性もよいことがわかる。したがって、壁、天井材等の内装用化粧ボードとして用いると、結露を防いで調湿し、表面装飾効果も優れているため、快適な住環境を創り出すことができる。 From the above results, it is clear that the interior decorative board A according to the present invention is excellent in moisture absorption and desorption, and is also excellent in the adsorption of malodorous components such as deodorizing properties. Furthermore, since the surface wiping property is also good, it can be seen that dirt and scratches are difficult to be attached, and that the adhesion to the ground is good. Therefore, when it is used as a decorative board for interiors such as walls and ceiling materials, it is possible to create a comfortable living environment because it controls moisture while preventing condensation and has an excellent surface decoration effect.

本発明にかかる内装用化粧ボードの製造工程の概略を示す模式図である。It is a schematic diagram which shows the outline of the manufacturing process of the decorative board for interiors concerning this invention.

符号の説明Explanation of symbols

Ａ本発明にかかる内装用化粧ボード
Ｂ複合ボード
１調湿性基材
２シーラー
３接着剤
４化粧シート
５防湿用塗料
６細孔
Ｓオルゴール式穿孔機 A decorative board for interior according to the present invention B composite board 1 humidity control substrate 2 sealer 3 adhesive 4 decorative sheet 5 moisture-proof coating 6 pore S music box type punch

Claims

調湿性基材と化粧シートとを貼着してなる内装用ボードにおいて、該調湿性基材の接着面を化学物質吸着材を含むシーラーで処理し、その後、溶剤系接着剤により上記化粧シートを接着し、さらに、穿孔機により径０．５〜２．０ｍｍの細孔を穿孔するとともに、その開孔率が０．５〜２．０％であり、溶剤系接着剤により化粧シートが接着された後の表面に、細孔が、化学物質吸着材を含むシーラーで処理された調湿性基材層に達するように穿孔されたことを特徴とする内装用化粧ボード。 In an interior board formed by adhering a humidity control substrate and a decorative sheet, the adhesive surface of the humidity control substrate is treated with a sealer containing a chemical substance adsorbent, and then the decorative sheet is coated with a solvent-based adhesive. adhered, further with drilling pore diameter 0.5~2.0mm by punches, the opening ratio is Ri 0.5 to 2.0% der, is decorative sheet by a solvent based adhesive bonding A decorative board for interiors , wherein pores are perforated on the surface after reaching the humidity control substrate layer treated with a sealer containing a chemical substance adsorbing material .

上記化粧シートがデザインされた紙または不織布からなるとともに、その坪量が３０〜１００ｇ／ｍ²であり、かつ、透湿量が２００ｇ／ｍ²・２４時間（ＪＩＳ法）以上である請求項１に記載の内装用化粧ボード。 The decorative sheet with consists designed paper or nonwoven fabric, the basis weight of 30 to 100 g / m ^2, and claim 1 volume moisture permeation is 200g / m ² · 24 hours (JIS method) or An interior decorative board as described in 1.

上記調湿性基材が無機繊維類と調湿性無機材料とからなるとともに、吸湿量が２００〜３００ｇ／ｍ²・２４時間である請求項１に記載の内装用化粧ボード。 The interior decorative board according to claim 1, wherein the humidity-controlling substrate comprises inorganic fibers and a humidity-controlling inorganic material, and has a moisture absorption of 200 to 300 g / m ² · 24 hours.

上記調湿性基材の裏面にさらに防湿処理が施された請求項１に記載の内装用化粧ボード。 The interior decorative board according to claim 1, wherein a moisture-proof treatment is further applied to the back surface of the humidity-controlling substrate.

上記穿孔が機械的穿孔法により行われる請求項１に記載の内装用化粧ボード。
The interior decorative board according to claim 1, wherein the perforation is performed by a mechanical perforation method.