JP2000351180A - Decorative material having moisture absorbing and discharging properties - Google Patents
Decorative material having moisture absorbing and discharging propertiesInfo
- Publication number
- JP2000351180A JP2000351180A JP11165257A JP16525799A JP2000351180A JP 2000351180 A JP2000351180 A JP 2000351180A JP 11165257 A JP11165257 A JP 11165257A JP 16525799 A JP16525799 A JP 16525799A JP 2000351180 A JP2000351180 A JP 2000351180A
- Authority
- JP
- Japan
- Prior art keywords
- moisture
- resin layer
- absorbing
- activated clay
- clay particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Building Environments (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、壁材等として建築
物や乗物等の内装用に好適な化粧材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative material suitable for interiors of buildings and vehicles as wall materials and the like.
【０００２】[0002]
【従来の技術】従来から、壁紙等の内装用途の化粧材の
代表的なものとして、難燃紙等の基材上に塩化ビニル樹
脂層を形成した構成のものが使用されている。ところ
が、この様な塩化ビニル樹脂層を有する化粧材は、吸放
湿性に乏しく、外界の温度及び湿度の変化に対して建築
物の内部の湿度変化を少なくさせる事ができない。一
方、昔から壁材等に使用されて来た、壁土、木材（特に
桐材）等では、それ自体が吸放湿性を有するので、建築
物内の湿度変化を少なくできる調湿機能を有する。この
為、前記の如き構成の化粧材を壁紙として使用すると、
室内の湿度変化が増加し、化粧材表面の結露、黴やダニ
の発生等の問題が生じる上、更に住居内湿度の変動によ
る人の健康状態への悪影響等も考えられた。2. Description of the Related Art Conventionally, as a typical decorative material for interior use such as wallpaper, a material having a structure in which a vinyl chloride resin layer is formed on a base material such as flame retardant paper has been used. However, such a decorative material having a vinyl chloride resin layer has poor moisture absorption and desorption properties, and it is not possible to reduce a change in humidity inside a building with respect to a change in external temperature and humidity. On the other hand, wall soil, wood (particularly paulownia wood), and the like, which have been used for wall materials and the like from the past, have moisture absorbing and releasing properties, and thus have a humidity control function that can reduce humidity changes in buildings. For this reason, when the decorative material having the above configuration is used as wallpaper,
The change in indoor humidity increases, causing problems such as dew condensation on the surface of the cosmetic material, generation of molds and ticks, and furthermore, it is considered that fluctuations in the humidity in the house may adversely affect human health.
【０００３】そこで、壁紙等として使用される化粧材に
おいても、吸放湿性を持たせる試みが行われている。例
えば、特開平１１−５８６２５号公報では、吸放湿剤と
して活性白土粒子を、アクリル樹脂やエチレン−酢酸ビ
ニル共重合体等からなる水性エマルション組成物中に、
配合し分散させた塗液を、基材上に塗工し、乾燥固化さ
せて吸放湿性樹脂層とした構成の化粧材を開示してい
る。[0003] Attempts have been made to impart moisture absorption and release properties to cosmetic materials used as wallpaper and the like. For example, in JP-A-11-58625, active clay particles are used as a moisture absorbing and releasing agent in an aqueous emulsion composition comprising an acrylic resin, an ethylene-vinyl acetate copolymer, or the like.
It discloses a decorative material having a configuration in which a coating liquid mixed and dispersed is applied on a substrate, dried and solidified to form a moisture-absorbing and releasing resin layer.
【０００４】[0004]
【発明が解決しようとする課題】ところが、吸放湿剤と
しての活性白土粒子は、表面活性が高く、その電気的な
表面特性、及びイオン特性によって、水性エマルション
中での分散状態が不安定となり、吸放湿性樹脂層を塗工
成膜時に、水性エマルションのゲル化の問題が発生して
いた。従って、活性白土粒子を用いた構成の化粧材は性
能的には満足したとしても、その製造上の問題から、必
ずしも好ましい化粧材とは言えなかった。 また、日光や
照明機器等の光にって、経時的に色褪せる等の表面色調
が容易に変化しない耐光性も望まれた。SUMMARY OF THE INVENTION However, moisture absorbing and releasing agents and
Activated clay particles have a high surface activity and
Aqueous emulsions depending on surface and ionic properties
The dispersion state in the inside becomes unstable, and the hygroscopic resin layer is coated
During film formation, the problem of gelation of aqueous emulsion occurred
Was. Therefore, a cosmetic material composed of activated clay particles is
Even if they are satisfied with their function,
It was not always a desirable cosmetic material. In addition, sunlight and
Surface color such as fading over time due to light from lighting equipment
Also, light resistance that does not easily change was desired.
【０００５】そこで、本発明の課題は、水性エマルショ
ンから形成する吸放湿性樹脂層に吸放湿剤として活性白
土粒子を使用したとしても、吸放湿性樹脂層を安定的に
形成でき、製造上でも好ましい構成となる上、更に耐光
性も良好とした、吸放湿性を有する化粧材を提供するこ
とである。[0005] Therefore, an object of the present invention is to provide a moisture-absorbent resin layer formed of an aqueous emulsion, even if activated clay particles are used as a moisture-absorbent agent, the moisture-absorbent resin layer can be formed stably. However, it is an object of the present invention to provide a cosmetic material having moisture absorption and desorption properties, in which the composition has a preferable configuration and light resistance is further improved.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するため
に、本発明の吸放湿性を有する化粧材は、エチレン性不
飽和単量体、及びジエン系単量体から選ばれる１種又は
２種以上の単量体からなる重合体を分散質として分散し
た水性エマルションに、保護コロイドとしてポリビニル
アルコールにより処理された保護化活性白土粒子を添加
してなる水性エマルション組成物を、乾燥固化させて成
膜した吸放湿性樹脂層からなる化粧材とした。この様
に、活性白土粒子を保護コロイドとしてポリビニルアル
コールにより処理された保護化活性白土粒子として添加
した特定の水性エマルション組成物を吸放湿性樹脂層に
使用する事で、表面活性の高い活性白土粒子でも、その
水性エマルション組成物の分散性安定性が向上し、活性
白土粒子とエマルションの樹脂との相互作用による凝集
が防止され、安定的な製造が可能で、しかも、吸放湿性
樹脂層中の活性白土粒子によって樹脂の黄変等の耐光劣
化も生じず、良好な吸放湿性耐光性も良好な吸放湿性を
有する化粧材となる。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a moisture-absorbent cosmetic material comprising one or two selected from ethylenically unsaturated monomers and diene monomers. An aqueous emulsion composition obtained by adding a protective activated clay particle treated with polyvinyl alcohol as a protective colloid to an aqueous emulsion in which a polymer comprising at least one kind of monomer is dispersed as a dispersoid is dried and solidified. A decorative material comprising a film of a moisture-absorbing and releasing resin layer was obtained. As described above, by using a specific aqueous emulsion composition added as a protected activated clay particle treated with polyvinyl alcohol as a protective colloid with the activated clay particles as a protective colloid, the activated clay particles having a high surface activity can be obtained. However, the dispersibility stability of the aqueous emulsion composition is improved, aggregation due to the interaction between the activated clay particles and the resin of the emulsion is prevented, stable production is possible, and in the moisture absorbing and releasing resin layer, Activated clay particles do not cause light resistance deterioration such as yellowing of the resin, and provide a cosmetic material having good moisture absorption / release properties and good moisture absorption / release properties.
【０００７】また、本発明の吸放湿性を有する化粧材の
第２の形態は、上記形態に於ける吸放湿性樹脂層を基材
上に積層してなる構成とした。この様な積層構成とする
事で、吸放湿性樹脂層自体では機械的強度が小さい場合
でも、基材を吸放湿性樹脂層の支持体として使用して例
えばシートや板の形態では、機械的強度等を適度にして
取り扱い易くできる。A second embodiment of the moisture absorbing and releasing cosmetic material of the present invention has a structure in which the moisture absorbing and releasing resin layer of the above embodiment is laminated on a substrate. With such a laminated structure, even when the moisture-absorbing / desorbing resin layer itself has a small mechanical strength, the substrate is used as a support for the moisture-absorbing / desorbing resin layer, for example, in the form of a sheet or a plate, The strength and the like can be made moderate to facilitate handling.
【０００８】また、本発明の吸放湿性を有する化粧材の
第３の構成は、上記第１又は第２の形態に対して、更に
吸放湿性樹脂層を細胞状発泡体とした。この様に、吸放
湿性樹脂層を細胞状発泡体とする事で、該吸放湿性樹脂
層が有する空洞によって、内部に分散保持された活性白
土粒子と外界との吸放湿が、より円滑に行われ、吸放湿
性が向上する。[0008] In a third aspect of the cosmetic material having moisture absorption and release properties of the present invention, the moisture absorption and release resin layer is made of a cellular foam in addition to the first or second embodiment. In this manner, by making the moisture-absorbing / desorbing resin layer a cellular foam, the cavities of the moisture-absorbing / desorbing resin layer make it possible to more smoothly absorb and release the activated clay particles dispersed inside and the outside world. The moisture absorption / release properties are improved.
【０００９】また、本発明の吸放湿性を有する化粧材の
第４の構成は、上記第１〜第３のいずれかの形態に対し
て、吸放湿性樹脂層の裏面、基材の表面、又は基材の裏
面のいずれか１箇所以上に、更に防湿・防水層を積層し
てなる構成とした。なお、もちろんだが、基材が積層さ
れていない第１の形態に対しては、吸放湿性樹脂層の裏
面に積層する構成のみとなる。この様な構成により、吸
放湿性樹脂層に吸収された水分（湿気）が再放出された
際に、化粧材裏面に放湿された水分によって、結露、
黴、錆等を生じることを防止し得る。Further, the fourth structure of the decorative material having moisture absorbing and releasing properties of the present invention is different from any one of the first to third aspects in that the back surface of the moisture absorbing and releasing resin layer, the surface of the substrate, Alternatively, a structure in which a moisture-proof / waterproof layer is further laminated on any one or more locations on the back surface of the base material is adopted. Note that, of course, the first embodiment in which the base material is not laminated has only a configuration in which the substrate is laminated on the back surface of the moisture absorbing and releasing resin layer. With such a configuration, when the moisture (moisture) absorbed in the moisture-absorbing and releasing resin layer is released again, the moisture released on the back surface of the decorative material causes dew condensation,
It can prevent mold and rust from being generated.
【００１０】[0010]
【発明の実施の形態】以下、本発明の吸放湿性を有する
化粧材について、実施の形態を説明する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of a cosmetic material having moisture absorption and release properties according to the present invention will be described.
【００１１】先ず、図１〜図４は、本発明の吸放湿性を
有する化粧材の層構成を例示する断面図である。図１は
吸放湿性樹脂層１のみの構成の化粧材Ｄであり、前記本
発明の第１の形態に該当する。また、図２は吸放湿性樹
脂層１と基材２とが積層された構成の化粧材Ｄであり、
前記第２の形態に該当する。また、図３は図２の構成に
対して吸放湿性樹脂層１を空洞３を有する細胞状発泡体
から構成した化粧材Ｄであり、前記第３の形態の一例に
該当する。また、図４は図２の構成に対して基材２の裏
面に防湿・防水層４を設けた構成の化粧材Ｄであり、前
記第４の形態の一例に該当する。そして、図５は、調湿
性能を比較したグラフである。First, FIGS. 1 to 4 are cross-sectional views illustrating the layer structure of a decorative material having moisture absorption / release properties of the present invention. FIG. 1 shows a decorative material D having only the hygroscopic resin layer 1, which corresponds to the first embodiment of the present invention. FIG. 2 shows a decorative material D having a configuration in which the moisture-absorbing and releasing resin layer 1 and the base material 2 are laminated,
This corresponds to the second mode. FIG. 3 shows a decorative material D in which the moisture-absorbing / desorbing resin layer 1 is made of a cellular foam having a cavity 3 in the configuration of FIG. 2, and corresponds to an example of the third embodiment. FIG. 4 shows a decorative material D having a configuration in which a moisture-proof / waterproof layer 4 is provided on the back surface of the base material 2 with respect to the configuration of FIG. 2, and corresponds to an example of the fourth embodiment. FIG. 5 is a graph comparing the humidity control performance.
【００１２】以下、これら各層について更に詳述する。Hereinafter, each of these layers will be described in more detail.
【００１３】〔吸放湿性樹脂層〕本発明の吸放湿性樹脂
層１としては、エチレン性不飽和単量体、及びジエン系
単量体から選ばれる１種又は２種以上の単量体からなる
重合体を分散質として分散した水性エマルションに、活
性白土粒子を保護コロイドとしてのポリビニルアルコー
ルで処理した保護化活性白土粒子として、添加してなる
水性エマルション組成物を、乾燥固化させて成膜した乾
燥固化膜を使用する。なお、本発明では、保護コロイド
としてポリビニルアルコールにより処理した活性白土粒
子を、「保護化活性白土粒子」と呼ぶことにする。[Hygroscopic Resin Layer] The hygroscopic resin layer 1 of the present invention comprises one or more monomers selected from ethylenically unsaturated monomers and diene monomers. Aqueous emulsion composition obtained by adding activated clay particles as protected active clay particles treated with polyvinyl alcohol as a protective colloid to an aqueous emulsion in which the polymer was dispersed as a dispersoid was dried and solidified to form a film. Use a dry solidified membrane. In the present invention, activated clay particles treated with polyvinyl alcohol as a protective colloid will be referred to as “protected activated clay particles”.
【００１４】（分散質）エチレン性不飽和単量体、及び
ジエン系単量体から選ばれる１種又は２種以上の単量体
からなる重合体としては、親水性基として（メタ）アク
リル酸やマレイン酸等のカルボキル基等を有する単量体
を適宜共重合して得られる重合体が使用できる。例え
ば、ポリ（メタ）アクリル酸メチル系、ポリ（メタ）ア
クリル酸ブチル系、（メタ）アクリル酸メチル−（メ
タ）アクリル酸ブチル系共重合体、（メタ）アクリル酸
メチル−（メタ）アクリル酸ブチル−（メタ）アクリル
酸−２−ヒドロキシエチル系共重合体、（メタ）アクリ
ル酸メチル−（メタ）アクリル酸ブチル−（メタ）アク
リル酸−２−ヒドロキシエチル−スチレン系共重合体等
のアクリル系樹脂〔ここで、（メタ）アクリルとは、ア
クリル又はメタクリルの意味で用いる。〕、或いは、ポ
リエチレン系、ポリプロピレン系、エチレン−プロピレ
ン共重合体系、エチレン−プロピレン−ブテン共重合体
系等のポリオレフィン系樹脂、或いは、エチレン−酢酸
ビニル共重合体、塩化ビニル樹脂、スチレン−ブタジエ
ン共重合体、水素添加スチレン−ブタジエン共重合体等
が挙げられる。(Dispersoid) As a polymer comprising one or more monomers selected from ethylenically unsaturated monomers and diene monomers, (meth) acrylic acid is used as a hydrophilic group. And a polymer obtained by appropriately copolymerizing a monomer having a carboxy group such as maleic acid or the like. For example, poly (methyl meth) acrylate, poly (meth) butyl acrylate, methyl (meth) acrylate-butyl (meth) acrylate copolymer, methyl (meth) acrylate- (meth) acrylic acid Acrylics such as butyl- (meth) acrylate-2-hydroxyethyl copolymer and methyl (meth) acrylate-butyl (meth) acrylate- (meth) acrylate-2-hydroxyethyl-styrene copolymer System resin [Here, (meth) acryl is used in the meaning of acryl or methacryl. Or a polyolefin resin such as polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-propylene-butene copolymer, or ethylene-vinyl acetate copolymer, vinyl chloride resin, styrene-butadiene copolymer. And a hydrogenated styrene-butadiene copolymer.
【００１５】（活性白土粒子）活性白土粒子は、主とし
てモンモリナイトを酸処理することにより得られ、天然
粘土としての吸着活性能を著しく向上させた粒子であ
る。活性白土粒子としては、水性エマルションに添加し
た場合の塗工適性、及び吸放湿性能の点から、平均粒径
が０．１〜１００μｍ程度のもの好ましい。また、平均
細孔径は、湿度を４０〜６０％ＲＨに保つ様な吸放湿性
を付与する為には、１０〜６０Åのものを用いるのが好
ましい。吸放湿性樹脂層１中に分散保持された活性白土
粒子ａが、湿度変化に応じて吸湿と放湿を可逆的に繰り
返す事で、化粧材の吸放湿性樹脂層に可逆的な吸放湿性
を付与する。(Activated Clay Particles) Activated clay particles are particles obtained mainly by treating montmorillonite with acid, and have significantly improved adsorption activity as natural clay. The activated clay particles preferably have an average particle size of about 0.1 to 100 μm from the viewpoint of coating suitability when added to an aqueous emulsion and moisture absorption / release performance. Further, it is preferable to use an average pore diameter of 10 to 60 [deg.] In order to impart moisture absorption / desorption properties to keep the humidity at 40 to 60% RH. Activated clay particles a dispersed and held in the moisture-absorbing / desorbing resin layer 1 reversibly absorb and release moisture according to a change in humidity. Is given.
【００１６】また、活性白土粒子は、表面が置換性水素
により覆われている為に、固体酸としての性質を有し、
この固体酸の性質により、ポリオレフィン系樹脂に対し
て激しい重合能を示すため、活性白土粒子を吸放湿性樹
脂層中で分散保持するポリオレフィン系樹脂等の樹脂が
光劣化等を引き起こす問題があった。しかし、下記の如
く、ポリビニルアルコールを保護コロイドとして、活性
白土粒子の表面に吸着させて保護して、保護化活性白土
粒子として水性エマルション組成物に使用することで、
この問題も解消する。Further, the activated clay particles have the property of a solid acid because their surface is covered with displaceable hydrogen.
Due to the nature of the solid acid, the polymer exhibits intense polymerization ability with respect to the polyolefin-based resin. Therefore, there is a problem in that the resin such as the polyolefin-based resin that disperses and holds the activated clay particles in the moisture-absorbing / releasing resin layer causes light deterioration and the like. . However, as described below, by protecting polyvinyl alcohol as a protective colloid by adsorbing it on the surface of the activated clay particles, and using the protected activated clay particles in the aqueous emulsion composition,
This problem is also solved.
【００１７】（ポリビニルアルコール）活性白土粒子に
対する保護コロイドとして使用するポリビニルアルコー
ルは、界面活性能と保護コロイド性の両方の性質わ有し
ており、乳化剤、分散剤として広く使用されている。そ
して、クレー、ゼオライト、セラミックス等の無機粉体
の分散安定剤として利用されている。本発明に於いて使
用するポリビニルアルコールは、平均重合度は特に限定
は無いが、１０００〜２５００の範囲が好ましい。平均
重合度が１０００未満であると、活性白土粒子を吸放湿
性樹脂層中で分散保持するの樹脂に対する固体酸として
の性質を抑制するのに、皮膜強度として不十分である。
また、平均重合度が１０００未満であると、活性白土粒
子に対するポリビニルアルコールの保護コロイドとして
の役割が不十分となり、水性エマルション組成物の分散
不安定化の原因ともなる。一方、平均重合度が２５００
を超えると、吸放湿性樹脂層を成膜時の乾燥性等が著し
く低下する。なお、ポリビニルアルコールの鹸化度は、
水溶性等の観点から４０〜９９モル％が好ましく、８０
〜９９モル％がより好ましい。鹸化度が４０モル％未満
であると水溶性が不足し、また鹸化度を９９．９９モル
％以上としても水溶性は向上し無い。(Polyvinyl Alcohol) Polyvinyl alcohol used as a protective colloid for activated clay particles has properties of both a surface activity and a protective colloid, and is widely used as an emulsifier and a dispersant. And it is used as a dispersion stabilizer for inorganic powders such as clay, zeolite and ceramics. The average degree of polymerization of the polyvinyl alcohol used in the present invention is not particularly limited, but is preferably in the range of 1000 to 2500. When the average degree of polymerization is less than 1,000, the strength of the film is insufficient to suppress the property of the activated clay particles dispersed and maintained in the moisture-absorbing / desorbing resin layer as a solid acid for the resin.
When the average degree of polymerization is less than 1,000, the role of the polyvinyl alcohol as a protective colloid for the activated clay particles becomes insufficient, which causes the dispersion of the aqueous emulsion composition to become unstable. On the other hand, the average degree of polymerization is 2500
If it exceeds 3, the drying property at the time of forming the moisture absorbing / releasing resin layer is significantly reduced. The degree of saponification of polyvinyl alcohol is
From the viewpoint of water solubility and the like, 40 to 99 mol% is preferable,
~ 99 mol% is more preferred. When the saponification degree is less than 40 mol%, the water solubility is insufficient, and when the saponification degree is 99.99 mol% or more, the water solubility does not improve.
【００１８】活性白土粒子を保護化する為のポリビニル
アルコールの使用量は、活性白土粒子１００重量部に対
して、０．１〜３０重量部が好ましい。使用量が０．１
重量部未満であると、水性エマルション組成物の分散安
定効果が十分に得られず、また、吸放湿性樹脂層の樹脂
の光劣化抑制効果が十分に得られない。また、使用量が
３０重量部を超えると、塗膜の吸湿性が高くなるため、
吸放湿性樹脂層の吸放湿性能は向上するが、成膜時の乾
燥性が低下し、また成膜後に巻き取る等の操作を行う
と、ブロッキング等の問題が起きることがある。The amount of polyvinyl alcohol used for protecting the activated clay particles is preferably 0.1 to 30 parts by weight based on 100 parts by weight of the activated clay particles. 0.1 used
If the amount is less than parts by weight, the effect of stabilizing the dispersion of the aqueous emulsion composition cannot be sufficiently obtained, and the effect of suppressing the photodeterioration of the resin of the moisture absorbing / releasing resin layer cannot be sufficiently obtained. Further, if the amount used exceeds 30 parts by weight, the hygroscopicity of the coating film increases,
Although the moisture absorbing / releasing performance of the moisture absorbing / releasing resin layer is improved, the drying property at the time of film formation is reduced, and when an operation such as winding after film formation is performed, problems such as blocking may occur.
【００１９】（その他の任意成分）なお、上記水性エマ
ルション組成物は、分散質となる特定の樹脂、ポリビニ
ルアルコールで保護した保護化活性白土粒子を必須成分
とする組成物であるが、必要に応じて、分散剤、水酸化
マグネシウム、水酸化アルミニウム等の難燃剤、１０，
１０’−オキシビスフェノキシアルシン等の防黴剤、銀
イオン担持ゼオライト等の抗菌剤、染料或いは顔料等の
着色剤、熱安定剤、光安定剤、紫外線吸収剤、可塑剤、
体質顔料等の添加剤を添加しても良い。(Other Optional Ingredients) The above-mentioned aqueous emulsion composition is a composition comprising, as essential components, a specific resin serving as a dispersoid and protected activated clay particles protected with polyvinyl alcohol. Dispersants, flame retardants such as magnesium hydroxide and aluminum hydroxide,
Antifungal agents such as 10'-oxybisphenoxyarsine, antibacterial agents such as zeolite carrying silver ions, coloring agents such as dyes or pigments, heat stabilizers, light stabilizers, ultraviolet absorbers, plasticizers,
An additive such as an extender may be added.
【００２０】（吸放湿性樹脂層の形成法）化粧材が吸放
湿性樹脂層のみの単層構成の場合（図１参照）は、上述
した組成物（水性エマルション組成物）を塗料として、
離型紙等の離型性支持体シートの上に塗工して、塗膜中
の分散媒を蒸発乾燥させる事で、塗膜を固化させて乾燥
固化膜とした後、離型性支持体シートから乾燥固化膜を
剥離すれば、目的とする吸放湿性樹脂層からなる化粧材
が得られる。なお、前記離型紙等の離型性支持体シート
としては、シリコーン樹脂、ワックス等の離型剤を紙や
樹脂シートに施した公知のものを使用すれば良い。或い
は、キャスティング法で成膜しても良い。(Method of forming moisture-absorbing and releasing resin layer) In the case where the decorative material has a single-layer structure composed of only the moisture-absorbing and releasing resin layer (see FIG. 1), the above-mentioned composition (aqueous emulsion composition) is used as a paint.
After coating on a release support sheet such as release paper and evaporating and drying the dispersion medium in the coating film, the coating film is solidified to form a dry solidified film, and then the release support sheet. By peeling off the dried and solidified film from the above, a decorative material comprising the desired moisture-absorbing and releasing resin layer can be obtained. As the release support sheet such as the release paper, a known release sheet in which a release agent such as a silicone resin or wax is applied to paper or a resin sheet may be used. Alternatively, the film may be formed by a casting method.
【００２１】また、基材上に吸放湿性樹脂層を有する複
層構成の場合（図２、図３参照）は、上述した水性エマ
ルション組成物を塗料として、基材上に塗工して、塗膜
中の分散媒を蒸発乾燥させることで、塗膜固化させて乾
燥固化膜とし吸放湿性樹脂層を形成すれば化粧材が得ら
れる。或いは、前記の様な方法で単層構成として予め製
膜しておいた吸放湿性樹脂層のシートを、公知の接着剤
や熱融着で基材に接着積層しても良い。In the case of a multilayer structure having a moisture absorbing / releasing resin layer on the substrate (see FIGS. 2 and 3), the above-mentioned aqueous emulsion composition is applied as a paint on the substrate, By evaporating and drying the dispersion medium in the coating film to solidify the coating film to form a dried and solidified film and forming a moisture-absorbing and releasing resin layer, a decorative material can be obtained. Alternatively, a sheet of the moisture-absorbing / desorbing resin layer, which has been formed in advance as a single layer by the above-described method, may be bonded and laminated on the base material by a known adhesive or heat fusion.
【００２２】（細胞状発泡体からなる吸放湿性樹脂層）
吸放湿性樹脂層１は、図１及び図２で示す如く内部に空
洞を含まない非発泡体でもよいが、図３で示す化粧材Ｄ
の如く、内部に多数の空洞３を有する細胞状発泡体から
構成しても良い。特に、細胞状発泡体で表面に開口する
空洞を多数有するものは、層内部と層外部との通気性が
良好であり、したがって、吸放湿性がより向上する。す
なわち、このような細胞状発泡体では吸放湿剤である活
性白土粒子と外気との接触が効率良く行われる為であ
る。(Hygroscopic Resin Layer Made of Cellular Foam)
The moisture-absorbing / desorbing resin layer 1 may be a non-foamed body having no hollow inside as shown in FIGS. 1 and 2, but the decorative material D shown in FIG.
As described above, a cellular foam having a large number of cavities 3 therein may be used. In particular, a cellular foam having many cavities open to the surface has good air permeability between the inside of the layer and the outside of the layer, so that the moisture absorption / release properties are further improved. That is, in such a cellular foam, the contact between the activated clay particles as the moisture absorbing and releasing agent and the outside air is efficiently performed.
【００２３】表面に開口する空洞とは、吸放湿性樹脂層
の内部から吸放湿性樹脂層の表面にまで連通する空洞の
ことである。また、複数の空洞同士が互いに連通してい
て、更に、連通する空洞が吸放湿性樹脂層の表面から吸
放湿性樹脂層の内部にまで分布していると、吸放湿効果
が良好であるので好ましい。また、吸放湿性樹脂層の表
側表面から裏側表面にまで空洞が連通していてもよい。
この場合、特に基材が紙等の吸放湿性素材の場合には、
基材と外気との吸放湿も利用できる。もちろん、表面に
開口する空洞とともに、表面に開口してない空洞が併存
していてもよい。The cavity open to the surface is a cavity communicating from the inside of the moisture-absorbing / release resin layer to the surface of the moisture-absorption / release resin layer. Further, when the plurality of cavities communicate with each other, and further, the communicating cavities are distributed from the surface of the moisture-absorbing / desorbing resin layer to the inside of the moisture-absorbing / desorbing resin layer, the moisture absorbing / desorbing effect is good. It is preferred. In addition, a cavity may be communicated from the front surface to the back surface of the moisture absorbing / releasing resin layer.
In this case, especially when the base material is a moisture absorbing and releasing material such as paper,
Moisture absorption and release between the substrate and the outside air can also be used. Needless to say, cavities that do not open on the surface may coexist with cavities that open on the surface.
【００２４】空洞本体の直径は、通常１０〜１０００μ
ｍ程度の範囲である。空洞本体が吸放湿性樹脂層の表面
に直接に開口するか、或いは通路によって吸放湿性樹脂
層表面に繋がった形になっていてもよい。該通路の直径
も空洞本体の直径と同程度の範囲である。また、空洞本
体の形状は、球、回転楕円体、多面体、その他各種形状
でよい。空洞本体及び通路の壁面は吸放湿性樹脂層を構
成する樹脂で構成される。The diameter of the hollow body is usually 10 to 1000 μm.
m. The hollow body may be directly opened on the surface of the moisture-absorbing / desorbing resin layer, or may be connected to the surface of the moisture-absorbing / desorbing resin layer by a passage. The diameter of the passage is also in the same range as the diameter of the cavity body. The shape of the hollow body may be a sphere, a spheroid, a polyhedron, or other various shapes. The walls of the cavity main body and the passage are made of a resin constituting a moisture absorbing / releasing resin layer.
【００２５】細胞状発泡体を形成する方法としては、前
記した樹脂中に発泡剤を添加してこれを加熱し発泡させ
る方法が代表的である。発泡剤としては次の（１）〜
（３）に挙げるもの等を使用できる。 （１）ポリアクリロニトリル、塩化ビニリデン樹脂、塩
化ビニリデン−アクリロニトリル共重合体等の樹脂の中
空球体中に、ブタン、ヘキサン、ペンタン等の揮発・熱
膨張性物質を内包させたマイクロカプセル型発泡剤。 （２）アゾジカルボンアミド、アゾビスイソブチロニト
リル、４，４’−オキシビスベンゼンスルホニルヒドラ
ジド、Ｎ，Ｎ’−ジニトロソペンタメチレンテトラミ
ン、炭酸水素ナトリウム、炭酸アンモニウム、ソジウム
ボロンハイドライド等の熱分解型発泡剤。必要に応じ
て、さらに、鉛、亜鉛、カルシウム、錫等の金属石鹸、
二塩基性硫酸鉛、三塩基性鉛、亜鉛華等の発泡促進剤を
添加する。 （３）上記（１）と（２）の混合体。A typical method for forming a cellular foam is a method in which a foaming agent is added to the above-described resin and heated to foam. The following (1)-
Those listed in (3) can be used. (1) A microcapsule-type foaming agent comprising a hollow sphere of a resin such as polyacrylonitrile, vinylidene chloride resin, or vinylidene chloride-acrylonitrile copolymer, and a volatile / thermally expandable substance such as butane, hexane, or pentane encapsulated therein. (2) Heat of azodicarbonamide, azobisisobutyronitrile, 4,4'-oxybisbenzenesulfonylhydrazide, N, N'-dinitrosopentamethylenetetramine, sodium hydrogen carbonate, ammonium carbonate, sodium boron hydride, etc. Decomposition type foaming agent. If necessary, further, metal soap such as lead, zinc, calcium, tin, etc.,
A foaming accelerator such as dibasic lead sulfate, tribasic lead, zinc white, etc. is added. (3) A mixture of the above (1) and (2).
【００２６】発泡剤の添加量は樹脂１００重量部に対し
て通常１〜１０重量部程度である。熱分解型の発泡剤を
多めに添加したり、樹脂中に界面活性剤を添加したりす
ることによって表面に開口する空洞を作ることができ
る。The amount of the foaming agent is usually about 1 to 10 parts by weight based on 100 parts by weight of the resin. By adding a large amount of a pyrolysis type foaming agent or adding a surfactant to the resin, a cavity that opens to the surface can be formed.
【００２７】また、吸放湿性樹脂層中の活性白土粒子の
外気との接触効率を上げる発泡以外の方法としては、予
め前記の方法で製膜した非発泡の吸放湿性樹脂層を１軸
又は２軸延伸する方法もある。延伸により吸放湿性樹脂
中の活性白土粒子の周囲に剪断応力によりボイドが生じ
（図３ほど極端ではないものの）、図３に近い構造を生
じるからである。As a method other than foaming for increasing the contact efficiency of the activated clay particles in the moisture-absorbing / desorbing resin layer with the outside air, a non-foamed moisture-absorbing / desorbing resin layer formed in advance by the above-described method may be formed by uniaxial or There is also a method of biaxial stretching. This is because, due to the stretching, voids are generated around the activated clay particles in the moisture absorbing / releasing resin due to shear stress (although not as extreme as in FIG. 3), and a structure close to FIG. 3 is generated.
【００２８】なお、吸放湿性樹脂層の厚さは、該層内の
空洞の有無に拘らず、いずれの場合も吸放湿性樹脂層の
厚みは通常５０〜３００μｍ程度である。The thickness of the moisture-absorbing / desorbing resin layer is usually about 50 to 300 μm regardless of the presence or absence of a cavity in the layer.
【００２９】〔基材〕基材２は吸放湿性樹脂層１の支持
体となるものでもあり、その形状はシート状、板状等、
特に限定は無い。材料も特に限定されず用途に応じたも
のを用いれば良い。例えば、木材単板、木材合板、パー
ティクルボード、木質繊維板（ＭＤＦ等）等の木材、
鉄、銅、アルミニウム等の金属、塩化ビニル樹脂、アク
リル樹脂、ポリオレフィン系樹脂、ポリエステル樹脂、
ＡＢＳ樹脂、フェノール樹脂等の樹脂、硝子、陶磁器等
のセラミックス、石膏、珪酸カルシウム、セメント等の
非陶磁器窯業系材料、紙、布帛、不織布等がある。[Substrate] The substrate 2 also serves as a support for the moisture-absorbing and desorbing resin layer 1 and has a sheet-like or plate-like shape.
There is no particular limitation. The material is not particularly limited, and a material according to the use may be used. For example, wood such as wood veneer, wood plywood, particle board, wood fiber board (MDF etc.),
Metals such as iron, copper and aluminum, vinyl chloride resin, acrylic resin, polyolefin resin, polyester resin,
Examples include resins such as ABS resin and phenolic resin, ceramics such as glass and ceramics, non-ceramic ceramic materials such as gypsum, calcium silicate, and cement, paper, fabric, and nonwoven fabric.
【００３０】特に、化粧材をシート（化粧シート）、な
かでも壁紙等として用いる場合は、基材として坪量が２
０〜１２０ｇ／ｍ2 程度の上質紙、薄葉紙、壁紙用裏打
紙、和紙等の紙、或いは硝子繊維、石綿、ポリエステル
繊維、ビニロン繊維等の繊維からなる織布又は不織布を
用いるのが好ましい。紙の場合、水酸化アルミニウム粉
末等の難燃剤を添加することもできる。In particular, when the decorative material is used as a sheet (decorative sheet), especially as a wallpaper, etc., the base material having a basis weight of 2
It is preferable to use a high-quality paper of about 0 to 120 g / m 2 , a thin paper, a backing paper for wallpaper, a paper such as Japanese paper, or a woven or non-woven fabric made of fibers such as glass fiber, asbestos, polyester fiber, and vinylon fiber. In the case of paper, a flame retardant such as aluminum hydroxide powder may be added.
【００３１】〔防湿・防水層〕基材として紙、木材等の
吸放湿性や透水性のあるものを使用する場合は、吸放湿
性樹脂層で吸着された水分が基材を通ってその裏面（例
えば壁の内部）に浸透することもある。そして、場合に
よっては、裏面に浸透した水分のために裏面のものが湿
気を帯びたり、反りを生じたり、或いは黴や錆を生じる
等の不都合を生じることがある。そこでこの現象を防止
する必要があるときは、吸放湿性樹脂層の裏面、基材の
表面（吸放湿性樹脂層側）、基材の裏面、のいずれか１
箇所以上（２箇所では例えば表裏両面など）に、ポリエ
チレン、ポリ塩化ビニリデン、アルミニウム蒸着ポリエ
チレンテレフタレート、シリカ蒸着ポリエチレンテレフ
タレート、酸化マグネシウム蒸着ポリエチレンテレフタ
レート、等からなる防湿・防水層を形成しておくことが
好ましい。図４に基材２の裏面にこの種の防湿・防水層
４を形成した化粧材Ｄの一例を示す。防湿・防水層４の
厚さは３０〜１００μｍ程度であり、２液硬化型ウレタ
ン樹脂等の接着剤で貼り合わせたり、或いは熔融押出し
法（エクストルージョンコート法）等で塗工形成すれば
良い。[Moisture-proof / water-proof layer] When a moisture-absorbing / desorbing or water-permeable material such as paper or wood is used as the base material, the moisture adsorbed by the moisture-absorbing / desorbing resin layer passes through the base material and its back surface. (Eg inside the wall). In some cases, the back surface may be moistened, warped, or cause inconvenience such as mold or rust due to the moisture permeating the back surface. Therefore, when it is necessary to prevent this phenomenon, any one of the back surface of the moisture-absorbing and releasing resin layer, the surface of the substrate (on the side of the moisture-absorbing and releasing resin layer), and the back surface of the substrate is used.
It is preferable to form a moisture-proof / water-proof layer made of polyethylene, polyvinylidene chloride, aluminum-deposited polyethylene terephthalate, silica-deposited polyethylene terephthalate, magnesium oxide-deposited polyethylene terephthalate, or the like at two or more locations (for example, on both sides). . FIG. 4 shows an example of a decorative material D in which this kind of moisture-proof / waterproof layer 4 is formed on the back surface of the base material 2. The thickness of the moisture-proof / waterproof layer 4 is about 30 to 100 μm, and may be applied by bonding with an adhesive such as a two-component curable urethane resin, or by applying a melt extrusion method (extrusion coating method).
【００３２】〔その他の層〕本発明の化粧材では、必要
に応じて、吸放湿性を阻害しない範囲内で、吸放湿性樹
脂層の表側面（もし該吸放湿性樹脂層が透明なら裏側面
でも可）に装飾層を設けてもよい。装飾層としては公知
のもので良く、例えば公知のインキと印刷法によって設
けた絵柄印刷層、アルミニウム等の金属薄膜層等があ
る。但し、装飾層を吸放湿性樹脂層の表側面に設ける場
合は、全面ではなく部分的に設けることが好ましい。も
ちろん、吸放湿性樹脂層と基材との間等の吸放湿性樹脂
層の裏側に設け、且つ基材が例えば樹脂基材で、基材自
体による吸放湿性を期待しない場合には、全面に設けて
も化粧材表面からの吸放湿性を阻害する事は無い。ま
た、吸放湿性を阻害しない範囲内で、吸放湿性樹脂層の
内部に公知の染料或いは顔料を添加して着色することに
よって装飾効果を出すこともできる。或いは、吸放湿性
樹脂層の表面に凹凸模様をエンボス法等で形成したり、
さらに凹凸模様の凹部に着色インキをワイピング法によ
り充填し着色することもできる。[Other layers] In the decorative material of the present invention, if necessary, the surface of the moisture-absorbing / desorbing resin layer (if the moisture-absorbing / desorbing resin layer is transparent, the back side A decorative layer may be provided. The decorative layer may be a known layer, for example, a pattern printing layer provided by a known ink and printing method, a metal thin film layer of aluminum or the like. However, when the decorative layer is provided on the front surface of the moisture absorbing and releasing resin layer, it is preferable to provide the decorative layer partially instead of the entire surface. Of course, when provided on the back side of the moisture-absorbing / desorbing resin layer, such as between the moisture-absorbing / desorbing resin layer and the base material, and when the base material is, for example, a resin base material and the base material itself is not expected to have moisture absorption / desorption properties, Does not hinder moisture absorption and desorption from the surface of the decorative material. In addition, a decorative effect can be obtained by adding a known dye or pigment to the inside of the moisture-absorbing / desorbing resin layer and coloring the resin layer within a range not impairing the moisture-absorbing / releasing properties. Alternatively, an uneven pattern is formed on the surface of the moisture absorbing / releasing resin layer by an embossing method or the like,
Further, coloring may be performed by filling the concave portions of the uneven pattern with a coloring ink by a wiping method.
【００３３】〔化粧材の用途〕本発明の化粧材は、直
接、或いは基材を介して各種被着体に貼着、積層して使
用される。その用途として、壁、床、天井等の建築物の
内装材が代表的であり、その他、自動車、電車、船舶、
航空機等の乗物の内装材、扉、襖、窓枠、手摺り等の建
具、箪笥等の家具、間仕切り、容器等にも利用される。[Use of the Cosmetic Material] The cosmetic material of the present invention is used by being adhered to various adherends directly or via a base material and laminated. Typical uses include interior materials for buildings such as walls, floors, and ceilings, as well as automobiles, trains, ships,
It is also used for interior materials of vehicles such as aircraft, doors, sliding doors, window frames, fittings such as handrails, furniture such as chests of drawers, partitions, containers and the like.
【００３４】[0034]
【実施例】以下、本発明について、実施例及び比較例に
より更に説明する。The present invention will be further described below with reference to examples and comparative examples.
【００３５】〔実施例１〕保護コロイドとしてポリビニ
ルアルコール（平均重合度１５００、鹸化度９７〜９
８．５モル％）５重量部を水１００重量部に溶解し、攪
拌しながら９０℃で１時間加熱して水溶液を得た後、こ
の水溶液を６０℃まで冷却し、活性白土粒子（平均粒径
２０μｍ、平均細孔径２５Å、水澤化学（株）製の商品
名「ガレオンアースＶ２Ｒ」）１００重量部を添加して
攪拌することで、活性白土粒子をポリビニルアルコール
で保護化した保護化活性白土粒子として水中に分散させ
た分散液とした。Example 1 As a protective colloid, polyvinyl alcohol (average degree of polymerization 1500, saponification degree 97 to 9)
(8.5 mol%) 5 parts by weight was dissolved in 100 parts by weight of water, and heated at 90 ° C. for 1 hour with stirring to obtain an aqueous solution. The aqueous solution was cooled to 60 ° C. to obtain activated clay particles (average particle size). Protected activated clay particles in which activated clay particles are protected with polyvinyl alcohol by adding 100 parts by weight of trade name “Galeon Earth V2R” manufactured by Mizusawa Chemical Co., Ltd. with a diameter of 20 μm, an average pore diameter of 25 mm, and stirring. As a dispersion liquid dispersed in water.
【００３６】そして、分散液とした保護化活性白土粒子
を含む上記分散液５６重量部（活性白土粒子としては２
８重量部相当）を、下記組成の水性エマルションに添加
して攪拌し、水性エマルション組成物とした。そして、
該水性エマルション組成物を、基材２として坪量１３０
ｇ／ｍ2 の壁紙用裏打紙の片面に１７０μｍの厚さで塗
工した後、１２０℃で１分間加熱して塗膜を固化させ
た。その後、１７０℃で１分間加熱して塗膜の発泡を完
了させて細胞状発泡体として吸放湿性樹脂層１を形成し
て、図３の如き構成の化粧材Ｄとして壁材シートを得
た。Then, 56 parts by weight of the above-mentioned dispersion liquid containing the protected activated clay particles as the dispersion liquid (the activated clay particles are 2 parts by weight).
(Equivalent to 8 parts by weight) to an aqueous emulsion having the following composition, followed by stirring to obtain an aqueous emulsion composition. And
The aqueous emulsion composition was used as a substrate 2 with a basis weight of 130.
One side of a g / m 2 wallpaper backing paper was coated with a thickness of 170 μm, and then heated at 120 ° C. for 1 minute to solidify the coating. Thereafter, heating was performed at 170 ° C. for 1 minute to complete the foaming of the coating film to form the moisture-absorbing / releasing resin layer 1 as a cellular foam, and a wall material sheet was obtained as a decorative material D having a configuration as shown in FIG. .
【００３７】水性エマルション 分散質：エチレン−酢酸ビニル共重合体 （中央理化学工業（株）製「ＢＥ−９２０」） ４２重量部 発泡剤：マイクロカプセル型発泡剤 （松本油脂（株）製「Ｆ−８５」） ３．５重量部 分散剤：ポリカルボン酸 １重量部 消泡剤：非シリコーン系消泡剤 １重量部 Aqueous emulsion dispersoid: ethylene-vinyl acetate copolymer ("BE-920", manufactured by Chuo Rika Chemical Industry Co., Ltd.) 42 parts by weight Foaming agent: microcapsule-type foaming agent ("F-Made" manufactured by Matsumoto Yushi Co., Ltd.) 85 ") 3.5 parts by weight Dispersant: 1 part by weight of polycarboxylic acid Defoamer: 1 part by weight of non-silicone defoamer
【００３８】〔比較例１〕実施例１において、活性白土
粒子を保護化活性白土粒子として水中に分散させた分散
液として添加せずに、そのままで２８重量部を上記水性
エマルションに添加した他、実施例１同様に、壁材シー
トとして化粧材を得た。[Comparative Example 1] In Example 1, 28 parts by weight of the activated clay particles were added to the above-mentioned aqueous emulsion without being added as a dispersion in which the activated clay particles were dispersed in water as protected activated clay particles. As in Example 1, a decorative material was obtained as a wall material sheet.
【００３９】〔比較例２〕比較例１において、活性白土
粒子の代わりに難燃添加剤として水酸化アルミニウム２
８重量部を使用した他は、比較例１と同様にして、壁材
シートとして図６の断面図で示す様な、基材２上に難燃
性樹脂層５が積層された構成の化粧材１０を得た。Comparative Example 2 In Comparative Example 1, aluminum hydroxide 2 was used as a flame retardant additive instead of activated clay particles.
Except for using 8 parts by weight, in the same manner as in Comparative Example 1, a decorative material having a configuration in which a flame-retardant resin layer 5 is laminated on a base material 2 as shown in the cross-sectional view of FIG. 10 was obtained.
【００４０】〔分散安定性評価〕（保護化或いは非保護
化の）活性白土粒子、及び水酸化アルミニウムが配合さ
れておらず、分散質、発泡剤、分散剤（ポリカルボン
酸）、及び消泡剤からなる水性エマルションに対して、
活性白土粒子或いは水酸化アルミニウム（比較例２の場
合）を添加して、吸放湿性樹脂層形成用の塗液として用
いる最終的な水性エマルション組成物とすべく、回転数
１２００ｒｐｍ、液温２５℃にて攪拌して、水性エマル
ション組成物の状態を２４時間観察評価した。その結
果、実施例１、及び比較例２については、保護化活性白
土粒子或いは水酸化アルミニウムを添加後の水性エマル
ション組成物の分散安定性は良好であり、ゲル化は生じ
なかった。しかし、非保護化の活性白土粒子を使用した
比較例１については、樹脂の凝集が発生しゲル化した。[Evaluation of Dispersion Stability] No activated clay particles (protected or unprotected) and aluminum hydroxide were blended, and a dispersoid, a foaming agent, a dispersant (polycarboxylic acid), and defoaming For aqueous emulsion consisting of agents,
Activated clay particles or aluminum hydroxide (in the case of Comparative Example 2) was added to obtain a final aqueous emulsion composition used as a coating liquid for forming a moisture-absorbing / desorbing resin layer, at a rotation speed of 1200 rpm and a liquid temperature of 25 ° C. And the state of the aqueous emulsion composition was observed and evaluated for 24 hours. As a result, in Example 1 and Comparative Example 2, the dispersion stability of the aqueous emulsion composition after the addition of the protected activated clay particles or aluminum hydroxide was good, and no gelation occurred. However, in Comparative Example 1 using unprotected activated clay particles, resin aggregation occurred and gelled.
【００４１】〔吸放湿性能評価〕実施例１、比較例１、
及び比較例２の各壁材シートについて、以下の手法によ
り調湿性能を比較した。具体的には、内寸２５ｃｍ×２
５ｃｍ×２５ｃｍの立方体形状のアルミニウムケースの
内壁面に、２５ｃｍ×２５ｃｍの大きさに切断した壁材
シートの１枚を貼り合わせ、初期設定温湿度（２０℃、
５０％ＲＨ）に恒量化した後、アルミニウムケースを密
閉し、外気温度を２０℃で０．５時間、３０℃で２時
間、２０℃で２時間、１０℃で２時間の順に変化させる
操作を１サイクルとして、１サイクル強の操作を行い、
アルミニウムケース内の湿度変化を測定した。[Evaluation of moisture absorption / desorption performance] Example 1, Comparative Example 1,
And about each wall material sheet of the comparative example 2, the humidity control performance was compared with the following method. Specifically, inner size 25cm × 2
One wall material sheet cut into a size of 25 cm × 25 cm is attached to the inner wall surface of a 5 cm × 25 cm cubic aluminum case, and the initial set temperature and humidity (20 ° C.,
After making the weight constant to 50% RH), the aluminum case is sealed, and the operation of changing the outside air temperature in the order of 0.5 hours at 20 ° C., 2 hours at 30 ° C., 2 hours at 20 ° C., and 2 hours at 10 ° C. As one cycle, perform the operation of slightly more than one cycle,
The humidity change in the aluminum case was measured.
【００４２】得られた結果を図５に示す。図５のグラフ
の如く、実施例１及び比較例１は湿度変化は略同じでそ
の調湿効果には差異は無かったが、これら実施例１及び
比較例１は、比較例２に対して湿度変化が少なく調湿効
果は高い事が確認された。FIG. 5 shows the obtained results. As shown in the graph of FIG. 5, Example 1 and Comparative Example 1 had substantially the same change in humidity and no difference in the humidity control effect, but these Examples 1 and Comparative Example 1 were different from Comparative Example 2 in humidity. It was confirmed that there was little change and the humidity control effect was high.
【００４３】〔耐光性能評価〕実施例１、比較例１、及
び比較例２の各壁材シートについて、低圧水銀灯からな
る光源から波長３８０ｎｍ以下のスペクトルを含む紫外
線を２０時間、及び５０時間照射し、色差計でＨｕｎｔ
ｅｒ Ｌａｂ色差式での色差、ΔＥ値を測定することに
より、耐光性を評価した。その結果、表１に示す如く、
実施例１と調湿効果が同程度であった比較例１と比較し
て、実施例１は生じた色差が小さく、耐光劣化に対して
改善が認められ耐光性が良い事が確認された。従って、
活性白土粒子を使用しても、本発明の様に保護化活性白
土粒子として使用すれば、耐光性低下を来さずに、吸放
湿性を付与出来る事が分かる。[Evaluation of Light Resistance Performance] Each of the wall material sheets of Example 1, Comparative Example 1, and Comparative Example 2 was irradiated with ultraviolet light having a wavelength of 380 nm or less from a light source composed of a low-pressure mercury lamp for 20 hours and 50 hours. Hunt with a color difference meter
The light fastness was evaluated by measuring the color difference and ΔE value in the er Lab color difference equation. As a result, as shown in Table 1,
Compared to Example 1 and Comparative Example 1 in which the humidity control effect was almost the same, Example 1 had a smaller color difference, and it was confirmed that light resistance deterioration was improved and light resistance was good. Therefore,
It can be seen that even when activated clay particles are used, if they are used as protected activated clay particles as in the present invention, moisture absorption and desorption properties can be imparted without a decrease in light resistance.
【００４４】[0044]
【表１】 [Table 1]
【００４５】[0045]
【発明の効果】本発明の吸放湿性を有する化粧材によ
れば、吸放湿効果が良好で外界の温湿度に伴う室内の湿
度の変動幅を少なくできる。しかも、その吸放湿性樹脂
層は、活性白土粒子を保護コロイドとしてポリビニルア
ルコールにより処理された保護化活性白土粒子として添
加した特定の水性エマルション組成物によって形成して
あるので、表面活性の高い活性白土粒子でも、その水性
エマルション組成物の分散安定性が向上し、活性白土粒
子とエマルションの樹脂との相互作用による凝集が防止
され、安定的な製造が可能で、しかも、吸放湿性樹脂層
中の活性白土粒子によって樹脂の黄変等の耐光劣化も生
じず、良好な吸放湿性を有する化粧材となる。According to the cosmetic material having moisture absorption / release properties of the present invention, the moisture absorption / desorption effect is good, and the fluctuation range of indoor humidity due to the temperature and humidity of the outside world can be reduced. Moreover, the moisture absorbing / releasing resin layer is formed of a specific aqueous emulsion composition in which activated clay particles are added as protective colloids treated with polyvinyl alcohol as protective colloids, so that activated clay having a high surface activity is used. Even in the particles, the dispersion stability of the aqueous emulsion composition is improved, aggregation due to the interaction between the activated clay particles and the resin of the emulsion is prevented, stable production is possible, and the moisture absorption / release in the resin layer The activated clay particles do not cause light resistance deterioration such as yellowing of the resin, and provide a cosmetic material having good moisture absorption / release properties.
【００４６】また、吸放湿性樹脂層を基材上に積層し
た構成とすれば、吸放湿性樹脂層自体では機械的強度が
小さい場合でも、基材を吸放湿性樹脂層の支持体として
使用して、例えばシートや板形態では、機械的強度を適
度にして取り扱い易くできる。Further, if the moisture-absorbing / desorbing resin layer is laminated on the substrate, the substrate can be used as a support of the moisture-absorbing / desorbing resin layer even if the moisture-absorbing / desorbing resin layer itself has a small mechanical strength. Then, for example, in the form of a sheet or a plate, the mechanical strength can be made moderate to facilitate the handling.
【００４７】更に、吸放湿性樹脂層を細胞状発泡体と
しておけば、該吸放湿性樹脂層が有する空洞によって、
内部に分散保持された活性白土粒子と外界との吸放湿
が、より円滑に行われ、吸放湿性が向上する。Further, if the moisture-absorbing / desorbing resin layer is formed as a cellular foam, the cavities of the moisture-absorbing / desorbable resin layer allow
Moisture absorption and desorption between the activated clay particles dispersed and held therein and the outside world is performed more smoothly, and moisture absorption and desorption properties are improved.
【００４８】更にまた、吸放湿性樹脂層の裏面側に防
湿・防水層を設けることにより、吸放湿性樹脂層が再放
出した水分が、裏面の基材或いは被着体に移行して、結
露したり、更には、基材や被着体に錆、腐食、黴等を生
じることも防止出来る。Further, by providing a moisture-proof / waterproof layer on the back side of the moisture-absorbing / desorbing resin layer, the moisture re-released by the moisture-absorbing / desorbing resin layer migrates to the base material or the adherend on the back side and forms dew condensation. Rust, corrosion, mold, etc. on the base material and the adherend can be prevented.
【図１】本発明の化粧材の一形態を例示する断面図。FIG. 1 is a cross-sectional view illustrating one embodiment of a cosmetic material of the present invention.
【図２】本発明の化粧材の別の形態（基材付き）を例示
する断面図。FIG. 2 is a cross-sectional view illustrating another embodiment (with a base material) of the decorative material of the present invention.
【図３】本発明の化粧材の別の形態（細胞状発泡体）を
例示する断面図。FIG. 3 is a cross-sectional view illustrating another form (cellular foam) of the cosmetic material of the present invention.
【図４】本発明の化粧材の別の形態（防湿・防水層付
き）を例示する断面図。FIG. 4 is a cross-sectional view illustrating another embodiment (with a moisture-proof / water-proof layer) of the cosmetic material of the present invention.
【図５】実施例と比較例の調湿性能を比較したグラフ。FIG. 5 is a graph comparing the humidity control performance of an example and a comparative example.
【図６】吸放湿性の無い従来の化粧材の一例を示す断面
図。FIG. 6 is a cross-sectional view showing an example of a conventional cosmetic material having no moisture absorption / release properties.
１ 吸放湿性樹脂層 ２ 基材 ３ 空洞 ４ 防湿・防水層 ５ 難燃性樹脂層 １０ （吸放湿性では無い）化粧材 ａ 活性白土粒子 Ｄ 化粧材 DESCRIPTION OF SYMBOLS 1 Moisture absorption / release resin layer 2 Base material 3 Cavity 4 Moisture-proof / waterproof layer 5 Flame-retardant resin layer 10 Cosmetic material (not hygroscopic) a Activated clay particle D Cosmetic material
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2E001 DB03 FA07 FA10 FA11 FA14 GA03 GA06 GA24 GA26 GA28 GA82 HA01 HA03 HA14 HA21 HA33 HB02 HB04 HB05 HC02 HC04 HC07 HC13 HD11 HD13 JA06 JB01 JB04 JD02 LA04 4F100 AC00A AC00H AK02A AK03A AK21 AK25A AK28A AK62A AK66A AK68 AR00D AT00B BA01 BA02 BA03 BA07 BA10A BA10B BA10C CA01 DE01A DG10 DJ01A EH46 GB08 GB33 HB00 JB02 JD04C JD05C JD15 JD15A JD16 JL07 JM01A JN28 JN30 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E001 DB03 FA07 FA10 FA11 FA14 GA03 GA06 GA24 GA26 GA28 GA82 HA01 HA03 HA14 HA21 HA33 HB02 HB04 HB05 HC02 HC04 HC07 HC13 HD11 HD13 JA06 JB01 JB04 JD02 LA04 4F100 AC00A AC00H AK02AAK AK03A AK28A AK62A AK66A AK68 AR00D AT00B BA01 BA02 BA03 BA07 BA10A BA10B BA10C CA01 DE01A DG10 DJ01A EH46 GB08 GB33 HB00 JB02 JD04C JD05C JD15 JD15A JD16 JL07 JM01A JN28 JN30
Claims (4)
単量体から選ばれる１種又は２種以上の単量体からなる
重合体を分散質として分散した水性エマルションに、保
護コロイドとしてポリビニルアルコールにより処理され
た保護化活性白土粒子を添加してなる水性エマルション
組成物を、乾燥固化させて成膜した吸放湿性樹脂層から
なる化粧材。1. An aqueous emulsion in which a polymer comprising one or more monomers selected from ethylenically unsaturated monomers and diene monomers is dispersed as a dispersoid, and polyvinyl as a protective colloid. A cosmetic material comprising a moisture-absorbing and desorbing resin layer formed by drying and solidifying an aqueous emulsion composition obtained by adding protected activated clay particles treated with alcohol.
層を積層してなる化粧材。2. A decorative material obtained by laminating the hygroscopic resin layer according to claim 1 on a substrate.
請求項１又は請求項２に記載の化粧材。3. The moisture absorbing / releasing resin layer is a cellular foam.
The cosmetic material according to claim 1 or 2.
は基材の裏面のいずれか１箇所以上に、更に防湿・防水
層を積層してなる、請求項１〜３のいずれか１項に記載
の化粧材。4. The moisture-proof / water-proof layer is further laminated on at least one of the back surface of the moisture-absorbing and releasing resin layer, the front surface of the base material, and the back surface of the base material. The cosmetic material according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11165257A JP2000351180A (en) | 1999-06-11 | 1999-06-11 | Decorative material having moisture absorbing and discharging properties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11165257A JP2000351180A (en) | 1999-06-11 | 1999-06-11 | Decorative material having moisture absorbing and discharging properties |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000351180A true JP2000351180A (en) | 2000-12-19 |
Family
ID=15808893
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11165257A Withdrawn JP2000351180A (en) | 1999-06-11 | 1999-06-11 | Decorative material having moisture absorbing and discharging properties |
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| Country | Link |
|---|---|
| JP (1) | JP2000351180A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014169617A (en) * | 2013-02-07 | 2014-09-18 | Nippon Aim Co Ltd | Building material |
-
1999
- 1999-06-11 JP JP11165257A patent/JP2000351180A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014169617A (en) * | 2013-02-07 | 2014-09-18 | Nippon Aim Co Ltd | Building material |
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