JP2004001272A - Dew condensation preventive sheet member - Google Patents

Dew condensation preventive sheet member Download PDF

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Publication number
JP2004001272A
JP2004001272A JP2002159441A JP2002159441A JP2004001272A JP 2004001272 A JP2004001272 A JP 2004001272A JP 2002159441 A JP2002159441 A JP 2002159441A JP 2002159441 A JP2002159441 A JP 2002159441A JP 2004001272 A JP2004001272 A JP 2004001272A
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Japan
Prior art keywords
dew condensation
sheet
layer
moisture absorbing
moisture
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.)
Pending
Application number
JP2002159441A
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Japanese (ja)
Inventor
Morihiko Matsumoto
松本 守彦
Toshihiro Ichino
市野 敏弘
Akinori Watabe
渡部 昭憲
Hidenori Iimuro
飯室 秀憲
Hisayoshi Takazawa
高沢 壽佳
Masataka Hirai
平井 正孝
Takahiko Murayama
村山 貴彦
Kiyonobu Oomura
大村 皖伸
Mitsuo Sakano
阪野 光夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokushu Paper Manufacturing Co Ltd
Nippon Telegraph and Telephone Corp
MES Afty Corp
Nippon Telegraph and Telephone East Corp
Original Assignee
Tokushu Paper Manufacturing Co Ltd
Nippon Telegraph and Telephone Corp
Nippon Telegraph and Telephone East Corp
NTT Afty Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tokushu Paper Manufacturing Co Ltd, Nippon Telegraph and Telephone Corp, Nippon Telegraph and Telephone East Corp, NTT Afty Corp filed Critical Tokushu Paper Manufacturing Co Ltd
Priority to JP2002159441A priority Critical patent/JP2004001272A/en
Publication of JP2004001272A publication Critical patent/JP2004001272A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a dew condensation preventive sheet member, which can surely prevent or reduce the development of dew condensation. <P>SOLUTION: The dew condensation preventive sheet member 10 is laminatingly made of a layer 4 including moisture absorbing and desorbing material 4a and a lower vapor permeable layer 6 under the condition that the moisture absorbing and desorbing material 4a is a higher water absorbing polymer, which is supported in a fibrous sheet together with a hydratable microfibril obtained from cellulose or cellulose derivative. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、冬季等に生じる窓の結露を防止するためのカーテン、ロールスクリーン、ブラインド、障子等の結露防止用シート体に関する。
【0002】
【従来の技術】
最近、窓ガラスの結露防止のため、ガラスを二重にして断熱性を高め、部屋と外部との温度差を少なくした二重ガラスがある。また、カーテンを厚くして断熱性を高めたものもある。
【0003】
【発明が解決しようとする課題】
しかしながら、上記したいずれの技術においても、結露の発生を完全に抑えることはできないため、結果として部屋側の窓のガラス面に付着した結露水が、窓枠、壁、床、畳等に流れてカビや腐敗を生じることが避けられなかった。
【0004】
本発明は、上記した問題点に鑑みてなされたもので、結露の発生を確実に防止或いは低減することができる結露防止用シート体を提供することを目的とする。
【0005】
【課題を解決するための手段】
上記した目的を達成するために、本発明の結露防止用シート体は、吸放湿材料を含むことを特徴とする。
このようにすると、吸放湿材料が周囲の水蒸気を吸収するので結露の生じやすい環境下、室内のガラス窓の結露の発生を確実に防止或いは低減することができる。そして、吸放湿材料がシート状になっているので表面積も増え、水蒸気の吸収量も増大し、結露の防止効果が大である。
【0006】
請求項2記載の結露防止用シート体においては、前記吸放湿材料を含む層と低透湿性層とを積層してなることを特徴とする。
【0007】
請求項3記載の結露防止用シート体においては、前記吸放湿材料は高吸水性ポリマであり、該高吸水性ポリマと、セルローズ又はセルローズ誘導体から得られる水和性を有するミクロフィブリルとが繊維状シートに支持されていることを特徴とする。
【0008】
【発明の実施の形態】
以下、本発明の実施の形態について説明する。図1は、本発明の結露防止用シート体の一実施の形態を示す構成図である。
【0009】
この図において、結露防止用シート体(カーテン)10は、吸放湿材料を含む層4と低透湿性層6とを積層してなる。ここで、吸放湿材料は粒状の高吸水性ポリマ(SAP:super absorbent polymer)4aであり、この高吸水性ポリマ4aとミクロフィブリル4bとが繊維状シート(支持層)2に塗布されている。ミクロフィブリル4bは、セルローズ又はセルローズ誘導体から得られる水和性を有する小繊維であり、SAPを塗工するときのバインダとしてSAPを繊維状シートに固定し、脱落を防ぐ役目をする。しかも水の浸透性、SAPの膨潤性を阻害しないような性質をもつ。
【0010】
本発明においては、上記した吸放湿材料を含む層4が窓ガラス近傍の空気中の水蒸気を吸収することにより湿度を低下させ、これにより結露の防止又は軽減を実現したことに特徴がある。従って、実際に上記結露防止用シート体10を使用する際は、図1に示したように吸放湿材料を含む層4側を、結露の起きる側の窓ガラスに面して配すればよい。また、この層4は、周囲の湿度が低い場合は、吸収した水蒸気を周囲に放出させるようになっており、これにより水分を吸収可能な状態に戻るので、次に結露雰囲気になったときに再度湿度を吸収できる。つまり、結露防止用として繰返し使用可能である。
【0011】
又、本発明において、好ましくは吸放湿材料を含む層4に加え、低透湿性層6をこの層4と積層する。このようにすると、結露の起きる側(図1の窓側)と無関係の場所(図1の室内側)からの水蒸気を吸放湿材料を含む層4が吸収してしまうことにより、層4の吸湿能力が早期に飽和することを防止できる。なお、本発明において、低透湿性層6を設けない場合は、室内側に通常のカーテンやブラインド等を掛けることで、室内側からの水蒸気の吸収を防止すればよい。
【0012】
いずれにせよ、本発明においては、吸放湿材料を含む層4がシート状になっており、通常のカーテンを代用するので、結露雰囲気との接触面積が広くなり、吸湿量が大となるので、長期間にわたり結露防止効果を発揮することができる。
【0013】
吸放湿材料としては、シリカゲル、シリカアルミナゲル、活性アルミナ、塩化カルシウム、天然又は合成ゼオライト、合成シリカ、酸性白土(未変質な流紋岩質凝灰岩、珪酸(SiO)及び酸化アルミニウム(Al)を主成分とする)、活性白土、セピオライト(鉱物で含水マグネシウムシリケート、化学構造式はSi12Mg30(OH)(OH)4・8HO)、パリゴスカイト、アロフェン(ケイ酸塩鉱物、1〜2SiO2・Al2O3・nH2O)、イモゴライト(非晶質粘土鉱物)、ベントナイト(粘土鉱物、モンモリロナイトを主成分とした含水層状珪酸塩)、珪藻土、珪酸カルシウム等の多孔質金属酸化物や、活性炭、木材粉などの吸放湿性を有する粉体、高吸収性ポリマなどを用いることができる。
【0014】
高吸水性ポリマ(SAP)としては、ポリアクリル酸ソーダ、ポリアクリル酸ソーダ系高分子、ポリビニルアルコール系高分子、アクリル系高分子、無水マレイン酸共重合体、天然高分子誘導体(デンプン系、セルロース系、たんぱく質系など)等を用いることができる。特に、吸放湿量や吸放湿速度が大きいだけでなく、塗工性やコストの面からポリアクリル酸ソーダ系高吸水性ポリマが好ましい。
【0015】
低透湿性層としては、例えば通気性の少ない高分子フィルムを用いることができる。
【0016】
本発明の結露防止用シート体は、例えば次のようにして製造することができる。まず、吸放湿材料を含む層4は、上記吸放湿材料を種々のバインダと混ぜたもの(分散液等)を例えば所定の型に流して乾燥させることで、形成することができる。又、支持層(例えば通気性のある不織布や織物)上に上記分散液を流延させることもでき、吸放湿材料を含む層を形成した後、これと支持層とを貼り合わせることもできる。支持層により、シート全体の美観を高めるともに、吸放湿材料を含む層が吸水したときの重量を支え、シート全体の強度を高めることができる。そして、吸放湿材料を含む層(又はこの層と支持層との積層体)と低透湿性層とを貼り合わせて本発明の結露防止用シート体を製造することができる。各層の貼り合わせ方法は特に限定されないが、例えば格子状に縫ったり、高周波ウェルダ、超音波ウェルダ、ヒートシーラにより所望部分を溶融接着させればよい。
【0017】
なお、吸放湿材料として高吸水性ポリマを用いる場合は、バインダとして上記ミクロフィブリルを用いるとよい。この場合の高吸水性ポリマとミクロフィブリルの具体的構成については、例えば特許第3016367号公報に記載のものを用いることができる。
【0018】
【実施例】
実施例1
高吸水性樹脂(三菱化学製 アクアパールA2)20質量部とミクロフィブリル(特許第3016367号公報に記載のS−MFC(スーパーミクロフィブリレイテッドセルローズ)0.2質量部を、エチルアルコール/水(比率が8対2)の溶液に分散させて塗料とした。
【0019】
この塗料を、通気性のある不織布((株)クラレ製 クラフレックスJP−3907、40g/m)に200g/mの塗工量で塗工して吸放湿材料を含む層(SAPシート)を形成した。
【0020】
このSAPシートをA4サイズに切り、容積20Lの蓋付きスチール缶の内側面に粘着テープで貼付した。そして、缶の蓋をせずに30℃、80%RHの室内雰囲気とした可変空調室で一昼夜放置し、シートに水分を吸収させた。次に、この缶を密封した後、5℃の空調室に移動して保管した。これにより、缶内部の温度は低下し、結露が発生する環境となった。5℃の空調室に移動して1、24時間後にそれぞれ缶を開け、内壁面の結露状態を観察した。
【0021】
比較のため、上記と同じスチール缶にSAPを貼付しなかったものを比較例1とし、SAPの代わりに高吸水性樹脂12.5gを入れたシャーレを上記と同じスチール缶の底部に設置したものを比較例2とし、SAPの代わりにシリカゲル12.5gを入れたシャーレを上記と同じスチール缶の底部に設置したものを比較例3とした。これらの結果を表1に示す。
【表1】

Figure 2004001272
【0022】
実施例2、3
実施例1で作成したSAPシートの両面に、それぞれシャワーカーテン(樹脂フィルム、低透湿性層として機能)と通気性のある不織布(旭化成(株)製 エルタスP03040)とを積層し、ヒートシーラで10cm間隔の格子状に全体を接着させて1.1×1.2mの大きさの結露防止用カーテンを作製した。
【0023】
結露の発生し易い2月末の時期に、この結露防止用カーテンを、6.6mの部屋に設置された1.1×1.2mのアルミサッシガラス窓の近傍の室内に吊るし、さらに室内で湯沸しポットの蓋を一部開けた状態で夕方7時から朝7時まで12時間湯を沸かし、結露の発生し易い環境にした。その後、ガラス窓の結露状態、並びに室内外及び窓近傍(ガラス面から約1cm)の室内の温湿度を、温湿度記録計(CHINO製 MODEL:HN−P10)で記録した。12時間湯沸かし後、直ちに記録を行ったものを実施例2とし、12時間湯沸かし後、日中12時間部屋のドアを開けて換気するサイクルを10日間繰り返した後に記録を行ったものを実施例3とした。また、上記結露防止用カーテンの代わりに吸放湿機能のない通常のアルミニウム製ブラインドを吊るし、12時間湯沸かし後、直ちに記録を行ったものを比較例4とした。これらの結果を表2に示す。
【表2】
Figure 2004001272
【0024】
表1から明らかなように、吸放湿材料を含む層(SAPシート)により、結露の生じやすい環境下において、有効に結露を防止できる。また、表2から明らかなように、吸放湿材料を含む層(SAPシート)を用いた結露防止用カーテンにより、室内のガラス窓の結露を有効に防止できる。
【0025】
【発明の効果】
以上説明したように、本発明によれば、結露の生じやすい環境下、室内のガラス窓の結露の発生を確実に防止或いは低減することができる。
【図面の簡単な説明】
【図1】本発明の結露防止用シート体の一実施の形態を示す構成図である。
【符号の説明】
4           吸放湿材料を含む層
4a          吸放湿材料
6           低透湿性層
10          結露防止用シート体[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a sheet for preventing dew condensation on a window, such as a curtain, a roll screen, a blind, and a shoji, for preventing dew condensation on a window generated in winter or the like.
[0002]
[Prior art]
Recently, there is a double glazing in which the glass is doubled to prevent dew condensation on the window glass to enhance the heat insulating property and reduce the temperature difference between the room and the outside. In some cases, the thickness of the curtain is increased to increase the heat insulation.
[0003]
[Problems to be solved by the invention]
However, in any of the above-described technologies, the occurrence of dew cannot be completely suppressed.As a result, dew condensation water attached to the glass surface of the window on the room side flows to the window frame, wall, floor, tatami, and the like. Mold and rot were inevitable.
[0004]
The present invention has been made in view of the above-described problems, and has as its object to provide a dew condensation preventing sheet body that can reliably prevent or reduce the occurrence of dew condensation.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the dew condensation preventing sheet of the present invention is characterized by containing a moisture absorbing and releasing material.
In this case, since the moisture absorbing / releasing material absorbs the surrounding water vapor, it is possible to reliably prevent or reduce the occurrence of dew condensation on the indoor glass window in an environment where dew condensation is likely to occur. Further, since the moisture absorbing / releasing material is in the form of a sheet, the surface area increases, the amount of water vapor absorbed also increases, and the effect of preventing dew condensation is great.
[0006]
According to a second aspect of the present invention, there is provided the sheet for preventing dew condensation, wherein a layer containing the moisture absorbing and releasing material and a low moisture permeable layer are laminated.
[0007]
4. The dew condensation preventing sheet according to claim 3, wherein the moisture absorbing / releasing material is a superabsorbent polymer, and the superabsorbent polymer and hydratable microfibrils obtained from cellulose or a cellulose derivative are fibers. Characterized by being supported by a sheet-like sheet.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described. FIG. 1 is a configuration diagram showing one embodiment of a dew condensation preventing sheet member of the present invention.
[0009]
In this figure, a dew-prevention sheet (curtain) 10 is formed by laminating a layer 4 containing a moisture absorbing and releasing material and a low moisture permeable layer 6. Here, the moisture absorbing / releasing material is a granular superabsorbent polymer (SAP) 4a, and the superabsorbent polymer 4a and the microfibrils 4b are applied to the fibrous sheet (support layer) 2. . The microfibrils 4b are hydrated fibrils obtained from cellulose or a cellulose derivative, and fix SAP to a fibrous sheet as a binder when SAP is applied, and serve to prevent falling off. Moreover, it has such properties as not to impair water permeability and SAP swellability.
[0010]
The present invention is characterized in that the layer 4 containing the moisture absorbing / releasing material absorbs water vapor in the air near the window glass to lower the humidity, thereby preventing or reducing dew condensation. Therefore, when actually using the dew-prevention sheet body 10, as shown in FIG. 1, the layer 4 containing the moisture-absorbing / desorbing material may be disposed facing the window glass on which dew condensation occurs. . Also, when the surrounding humidity is low, the layer 4 releases the absorbed water vapor to the surroundings, thereby returning to a state in which moisture can be absorbed. It can absorb humidity again. That is, it can be used repeatedly to prevent condensation.
[0011]
In the present invention, a low moisture permeable layer 6 is preferably laminated on the layer 4 containing the moisture absorbing / releasing material. In this case, the layer 4 containing the moisture absorbing and releasing material absorbs water vapor from a place (inside of the room in FIG. 1) unrelated to the side where the dew condensation occurs (the window side in FIG. 1). The ability can be prevented from saturating early. In the present invention, when the low moisture permeable layer 6 is not provided, the absorption of water vapor from the indoor side may be prevented by hanging a normal curtain, a blind, or the like on the indoor side.
[0012]
In any case, in the present invention, since the layer 4 containing the moisture absorbing / releasing material is in the form of a sheet and a normal curtain is used instead, the contact area with the dew condensation atmosphere becomes large, and the moisture absorption becomes large. The effect of preventing dew condensation can be exhibited over a long period of time.
[0013]
Examples of the moisture absorbing / releasing material include silica gel, silica alumina gel, activated alumina, calcium chloride, natural or synthetic zeolite, synthetic silica, acid clay (unaltered rhyolite tuff, silicic acid (SiO 2 ), and aluminum oxide (Al 2 O 3 ), activated clay, sepiolite (a mineral hydrated magnesium silicate, chemical formula of Si 12 Mg 8 O 30 (OH) 4 (OH 2 ) 4.8H 2 O), palygoskite, allophane ( Porous metal oxides such as silicate minerals, 1-2SiO2.Al2O3.nH2O, imogolite (amorphous clay mineral), bentonite (clay mineral, hydrous layered silicate mainly composed of montmorillonite), diatomaceous earth, calcium silicate, etc. Products, activated carbon, wood powder and other powders that absorb and release moisture, and highly absorbent polymers. That.
[0014]
Examples of superabsorbent polymers (SAP) include sodium polyacrylate, sodium polyacrylate-based polymer, polyvinyl alcohol-based polymer, acrylic polymer, maleic anhydride copolymer, and natural polymer derivatives (starch-based, cellulose-based). System, protein system, etc.) can be used. In particular, a sodium polyacrylate superabsorbent polymer is preferred from the viewpoints of not only high moisture absorption / desorption amount and moisture absorption / desorption rate but also coating property and cost.
[0015]
As the low moisture permeable layer, for example, a polymer film with low air permeability can be used.
[0016]
The dew condensation preventing sheet body of the present invention can be manufactured, for example, as follows. First, the layer 4 containing the moisture absorbing / releasing material can be formed by flowing a mixture (dispersion liquid or the like) of the above moisture absorbing / releasing material with various binders, for example, by flowing it into a predetermined mold and drying. In addition, the above-mentioned dispersion liquid can be cast on a support layer (for example, a non-woven fabric or a woven fabric having air permeability), and after forming a layer containing a moisture-absorbing / desorbing material, it can be bonded to the support layer. . The support layer can enhance the aesthetic appearance of the entire sheet, support the weight of the layer containing the moisture absorbing and releasing material when absorbing water, and increase the strength of the entire sheet. Then, the layer containing the moisture-absorbing / desorbing material (or a laminate of this layer and the support layer) and the low moisture-permeable layer can be attached to produce the dew-prevention sheet of the present invention. The method of laminating each layer is not particularly limited. For example, the layers may be sewn in a lattice shape or a desired portion may be melt-bonded using a high-frequency welder, an ultrasonic welder, or a heat sealer.
[0017]
When a superabsorbent polymer is used as the material for absorbing and releasing moisture, the above-mentioned microfibrils may be used as a binder. In this case, as a specific configuration of the superabsorbent polymer and the microfibril, for example, those described in Japanese Patent No. 3016367 can be used.
[0018]
【Example】
Example 1
20 parts by mass of a super water absorbent resin (Aqua Pearl A2 manufactured by Mitsubishi Chemical Corporation) and 0.2 parts by mass of microfibril (S-MFC (super microfibrillated cellulose) described in Japanese Patent No. 3016367) were mixed with ethyl alcohol / water (ratio). Was dispersed in a solution of 8: 2) to obtain a paint.
[0019]
The coating layer (SAP sheet containing Hygroscopic material is coated at a coat weight of 200 g / m 2 to breathable nonwoven fabric (manufactured by Kuraray Co., Ltd. Kuraflex JP-3907,40g / m 2) ) Was formed.
[0020]
This SAP sheet was cut into an A4 size sheet and attached to the inner surface of a steel can with a lid having a capacity of 20 L with an adhesive tape. Then, the sheet was allowed to stand all day and night in a variable air-conditioning room having an indoor atmosphere of 30 ° C. and 80% RH without covering the can to allow the sheet to absorb moisture. Next, after sealing the can, it was moved to an air conditioning room at 5 ° C. and stored. This reduced the temperature inside the can and created an environment in which dew condensation occurred. After moving to the air-conditioning room at 5 ° C., the cans were respectively opened 1 and 24 hours later, and the dew condensation state on the inner wall surface was observed.
[0021]
For comparison, the same steel can with no SAP attached thereto was referred to as Comparative Example 1 except that a petri dish containing 12.5 g of superabsorbent resin was placed at the bottom of the same steel can as above instead of SAP. Was used as Comparative Example 2, and a Petri dish containing 12.5 g of silica gel instead of SAP was set on the bottom of the same steel can as Comparative Example 3. Table 1 shows the results.
[Table 1]
Figure 2004001272
[0022]
Examples 2 and 3
A shower curtain (resin film, functioning as a low moisture permeable layer) and a breathable nonwoven fabric (ELTAS P03040 manufactured by Asahi Kasei Co., Ltd.) were laminated on both sides of the SAP sheet prepared in Example 1, respectively, and the heat sealer was used for 10 cm intervals. The whole was adhered in a lattice shape to prepare a dew condensation preventing curtain having a size of 1.1 × 1.2 m.
[0023]
At the end of February, when dew condensation is likely to occur, this dew-prevention curtain is hung in a room near a 1.1 × 1.2 m aluminum sash glass window installed in a 6.6 m 2 room. Water was boiled for 12 hours from 7:00 in the evening to 7:00 in the morning with the lid of the kettle pot partially opened to create an environment in which dew condensation easily occurs. Thereafter, the dew condensation state of the glass window and the temperature and humidity inside and outside the room and in the vicinity of the window (about 1 cm from the glass surface) were recorded by a temperature and humidity recorder (MODEL: HN-P10 manufactured by CHINO). Example 2 was one in which recording was performed immediately after boiling for 12 hours, and Example 3 was one in which recording was performed after repeating a cycle of opening the room door for 12 hours during the day and ventilating for 12 days after boiling for 12 hours. And In addition, instead of the above dew condensation preventing curtain, a normal aluminum blind having no moisture absorption / release function was hung, heated for 12 hours, and immediately recorded, to obtain Comparative Example 4. Table 2 shows the results.
[Table 2]
Figure 2004001272
[0024]
As is clear from Table 1, the layer containing the moisture absorbing / releasing material (SAP sheet) can effectively prevent dew condensation in an environment where dew condensation easily occurs. Further, as is apparent from Table 2, the dew condensation preventing curtain using the layer containing the moisture absorbing and releasing material (SAP sheet) can effectively prevent the dew condensation on the glass windows in the room.
[0025]
【The invention's effect】
As described above, according to the present invention, it is possible to reliably prevent or reduce the occurrence of dew condensation on an indoor glass window in an environment where dew condensation easily occurs.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an embodiment of a dew condensation prevention sheet member of the present invention.
[Explanation of symbols]
Reference Signs List 4 Layer containing moisture absorbing and releasing material 4a Moisture absorbing and releasing material 6 Low moisture permeable layer 10 Sheet for preventing dew condensation

Claims (3)

吸放湿材料を含むことを特徴とする結露防止用シート体。A sheet member for preventing dew condensation, comprising a moisture absorbing and releasing material. 前記吸放湿材料を含む層と低透湿性層とを積層してなることを特徴とする請求項1に記載の結露防止用シート体。The sheet member for preventing dew condensation according to claim 1, wherein a layer containing the moisture absorbing and releasing material and a low moisture permeable layer are laminated. 前記吸放湿材料は高吸水性ポリマであり、
該高吸水性ポリマと、セルローズ又はセルローズ誘導体から得られる水和性を有するミクロフィブリルとが繊維状シートに支持されていることを特徴とする請求項1又は2に記載の結露防止用シート体。
The moisture absorbing and releasing material is a super absorbent polymer,
The dew condensation preventing sheet according to claim 1 or 2, wherein the superabsorbent polymer and a hydratable microfibril obtained from cellulose or a cellulose derivative are supported on a fibrous sheet.
JP2002159441A 2002-05-31 2002-05-31 Dew condensation preventive sheet member Pending JP2004001272A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018012917A (en) * 2016-07-19 2018-01-25 積水ハウス株式会社 Shielding film and window structure
CN110499118A (en) * 2019-07-30 2019-11-26 云谷(固安)科技有限公司 Screen protecting film and its manufacturing method, electronic equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018012917A (en) * 2016-07-19 2018-01-25 積水ハウス株式会社 Shielding film and window structure
CN110499118A (en) * 2019-07-30 2019-11-26 云谷(固安)科技有限公司 Screen protecting film and its manufacturing method, electronic equipment

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