JP2000179132A - Tatami padding coating sheet having mildew proofing performance - Google Patents
Tatami padding coating sheet having mildew proofing performanceInfo
- Publication number
- JP2000179132A JP2000179132A JP10358586A JP35858698A JP2000179132A JP 2000179132 A JP2000179132 A JP 2000179132A JP 10358586 A JP10358586 A JP 10358586A JP 35858698 A JP35858698 A JP 35858698A JP 2000179132 A JP2000179132 A JP 2000179132A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- tatami
- water
- tatami floor
- fungicide
- 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
Links
- 239000011248 coating agent Substances 0.000 title claims abstract 6
- 238000000576 coating method Methods 0.000 title claims abstract 6
- 239000000203 mixture Substances 0.000 claims abstract description 24
- 239000011256 inorganic filler Substances 0.000 claims abstract description 17
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 17
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 15
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 12
- 230000000855 fungicidal effect Effects 0.000 claims description 30
- 239000000417 fungicide Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 10
- OSDLLIBGSJNGJE-UHFFFAOYSA-N 4-chloro-3,5-dimethylphenol Chemical compound CC1=CC(O)=CC(C)=C1Cl OSDLLIBGSJNGJE-UHFFFAOYSA-N 0.000 claims description 8
- GUSWJGOYDXFJSI-UHFFFAOYSA-N 3,6-dichloropyridazine Chemical compound ClC1=CC=C(Cl)N=N1 GUSWJGOYDXFJSI-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 37
- 239000004744 fabric Substances 0.000 abstract description 11
- 238000009833 condensation Methods 0.000 abstract description 9
- 230000005494 condensation Effects 0.000 abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 230000035699 permeability Effects 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 241000209094 Oryza Species 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- 239000010902 straw Substances 0.000 description 5
- 230000000843 anti-fungal effect Effects 0.000 description 4
- 239000003429 antifungal agent Substances 0.000 description 4
- 229940121375 antifungal agent Drugs 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229920000092 linear low density polyethylene Polymers 0.000 description 3
- 239000004707 linear low-density polyethylene Substances 0.000 description 3
- JADVVTZXHQUFLS-UHFFFAOYSA-N 3,4-dichloropyridazine Chemical compound ClC1=CC=NN=C1Cl JADVVTZXHQUFLS-UHFFFAOYSA-N 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、防黴性能を有する
畳床被覆用シートに関するものである。具体的には、畳
床と畳表の間に挿入させる透湿性と遮水性を有するシー
トで、水が付着したり結露等が生じたりしても、黴の発
生しない畳床被覆用シートに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tatami floor covering sheet having fungicide performance. More specifically, the present invention relates to a sheet for covering a tatami floor which is inserted between the tatami floor and the tatami mat surface and has moisture permeability and water blocking properties. is there.
【０００２】[0002]
【従来の技術】一般に、畳は畳床の上に畳表を敷き、そ
の周囲を縫い合わせて製造されている。そして、畳床の
材料としては、従来、稲藁が使用されていたが、最近で
は、インシュレーションボード等が使用されるようにな
ってきた。稲藁やインシュレーションボード等の吸放湿
性を有する材料からなる畳床を使用した畳は、調湿作用
があり、室内の生活環境が良好となる。又、畳表は天然
のい草から作られるのは勿論であるが、最近では、合成
樹脂からなる人工のい草からも作られるようになってき
た。2. Description of the Related Art In general, a tatami mat is manufactured by laying a tatami mat on a tatami floor and sewing the periphery thereof. As a material for the tatami floor, rice straw has been conventionally used, but recently, an insulation board or the like has been used. A tatami mat using a tatami floor made of a material having moisture absorption and release properties, such as rice straw or insulation board, has a humidity control effect, and provides a good indoor living environment. Tatami mats are made not only from natural rush but also recently from artificial rush made of synthetic resin.
【０００３】ところが、畳床が稲藁やインシュレーショ
ンボード等の吸水性を有する材料からできている場合に
は、畳の上に水等をこぼすと、畳床がその水等を吸収し
て湿ってしまう。そして、畳床に吸収された水分は飛散
し難いのでなかなか乾燥せず、不快感が何時までも残る
のみならず、衛生的にも好ましくかなかった。又、畳床
が水を吸収すると腐敗の原因にもなっていた。そこで、
畳床と畳表の間に合成樹脂フィルム等の遮水シートを挿
入させて、畳の上にこぼされた水等が畳床に吸収される
のを阻止し、畳床が湿るのを防止させる方法が行われて
いる。しかし、該方法では、畳床と畳表の間に挿入させ
る遮水シートが透湿性を有していないと、畳の裏面や側
面から吸湿した水分が畳の表面から飛散し難くなり、畳
床が何時までも湿った状態であるので好ましくなかっ
た。However, if the tatami floor is made of a water-absorbing material such as rice straw or insulation board, if water or the like is spilled on the tatami floor, the tatami floor absorbs the water or the like and becomes wet. Would. And the moisture absorbed in the tatami floor is hard to be scattered, so that it is not easily dried, and not only unpleasant feelings remain for many hours, but also it is not hygienic. Also, if the tatami floor absorbs water, it causes rot. Therefore,
Insert a waterproof sheet such as a synthetic resin film between the tatami floor and the tatami floor to prevent water, etc., spilled on the tatami from being absorbed by the tatami floor, and to prevent the tatami floor from getting wet. The way has been done. However, in this method, if the impermeable sheet inserted between the tatami mat floor and the tatami mat surface does not have moisture permeability, moisture absorbed from the back and side surfaces of the tatami mat is less likely to be scattered from the tatami mat surface, and the tatami mat floor is not laid. It was unfavorable because it was wet all the time.
【０００４】これらのことから、畳床と畳表の間に挿入
させる畳床被覆用シートは、透湿性と遮水性を共に有し
ていることが必要であった。しかし、畳床被覆用シート
が遮水性を有していると、畳の上にこぼされた水等が畳
表と該シートとの間に長時間留まった状態となり、該シ
ートの畳表に接する面（以下、「表面」と称する。）に
黴が発生する。該表面に黴が発生すると不衛生であり、
室内の生活環境が害される。又、梅雨時等に畳床の吸湿
量が多くなった場合、畳床より蒸散した水分が畳床被覆
用シートを透過し切れずに、該シートの畳床に接する面
（以下、「裏面」と称する。）に結露を生じ、黴が発生
する。該裏面に黴が発生すると不衛生になるばかりか、
畳床が腐敗する原因にも繋がる。[0004] For these reasons, it is necessary that the tatami floor covering sheet to be inserted between the tatami floor and the tatami mat surface has both moisture permeability and water barrier properties. However, if the tatami floor covering sheet has water blocking properties, water or the like spilled on the tatami mat stays between the tatami mat and the sheet for a long time, and the surface of the sheet in contact with the tatami mat ( Hereinafter, the surface is referred to as “surface”. If mold is generated on the surface, it is unsanitary,
The indoor living environment is harmed. In addition, when the tatami floor absorbs a large amount of moisture during the rainy season or the like, the surface of the sheet that comes into contact with the tatami floor (hereinafter referred to as the “back side”) does not allow the water evaporating from the tatami floor to pass through the tatami floor covering sheet. Condensation), and mold is generated. If mold is generated on the back, it will not only become unsanitary,
It also leads to the cause of tatami floor decay.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、畳の上にこ
ぼした水等が、畳床被覆用シートの表面に付着したり、
畳床の水分が蒸散して畳床被覆用シートの裏面に結露が
生じたりしても、黴が発生しない畳床被覆用シートを提
供しようとするものである。According to the present invention, water or the like spilled on a tatami mat adheres to the surface of the tatami floor covering sheet,
An object of the present invention is to provide a tatami floor covering sheet which does not generate mold even if moisture on the tatami floor evaporates and dew condensation occurs on the back surface of the tatami floor covering sheet.
【０００６】[0006]
【課題を解決するための手段】本発明は、上記課題を解
決するために、次のような手段を講じた。即ち、畳床被
覆用シートが、防黴剤を含有した透湿・遮水シートから
なることを特徴とする。好ましくは、防黴剤を含有した
透湿・遮水シートが、ポリオレフィン系樹脂と無機充填
剤からなる組成物に防黴剤を添加して溶融押出されたシ
ート状物の少なくとも片面に割布又は不織布を溶融接着
して得られた積層体を一軸延伸してなるものであること
を特徴とする。更に、好ましくは、防黴剤が、３，６−
ジクロロピリタジンとパラクロロメタキシレノールの混
合物であることを特徴とする。According to the present invention, the following means have been taken in order to solve the above-mentioned problems. That is, the tatami floor covering sheet is characterized by comprising a moisture-permeable / waterproof sheet containing a fungicide. Preferably, a moisture-permeable / waterproof sheet containing a fungicide is added to the composition comprising a polyolefin-based resin and an inorganic filler, a fungicide is added, and at least one surface of the sheet is melt-extruded. The laminate is obtained by uniaxially stretching a laminate obtained by melting and bonding a nonwoven fabric. Further preferably, the antifungal agent is 3,6-
It is a mixture of dichloropyridazine and parachlorometaxylenol.
【０００７】[0007]
【発明の実施態様】まず、本発明の畳床被覆用シート
は、防黴剤を含有した透湿性と遮水性を共に有するシー
ト状物である。防黴剤を含有するシート状物とは、防黴
剤を含んだシートは勿論、防黴剤が塗布させたシートを
も意味する。尚、防黴剤としては、特に限定されるもの
ではなく、一般にプラスチック成型品等に使用されてい
る防黴剤を使用することができる。特に、3，６−ジク
ロロピリタジンとパラクロロメタキシレノールの混合物
よりなる防黴剤は、耐熱性が良好であるので、畳床被覆
用シートの成形加工時に分解し難く、好適である。DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the tatami floor covering sheet of the present invention is a sheet having both a moisture permeability and a water blocking property containing a fungicide. The sheet material containing the antifungal agent means not only a sheet containing the antifungal agent but also a sheet coated with the antifungal agent. The fungicide is not particularly limited, and a fungicide generally used for molded plastic products and the like can be used. In particular, a fungicide made of a mixture of 3,6-dichloropyridazine and parachlorometaxylenol is suitable because it has good heat resistance and is not easily decomposed during the forming process of a tatami floor covering sheet.
【０００８】又、透湿性と遮水性を共に有するシート状
物とは、水分は透過させるが、水は透過させないシート
を意味する。具体的には、水を遮断し、水蒸気を透過さ
せ、その水蒸気透過率が３０００乃至２００００ｇ／ｍ
２／２４ｈｒのシートを意味する。A sheet having both moisture permeability and water barrier means a sheet that allows moisture to permeate but does not allow water to permeate. Specifically, water is blocked and water vapor is transmitted, and the water vapor transmission rate is 3000 to 20,000 g / m2.
It means a sheet of 2 / 24hr.
【０００９】防黴剤を含有した透湿・遮水シートは、特
に限定されるものではないが、次のような方法によって
製造されたものが好ましい。即ち、ポリオレフィン系樹
脂と無機充填剤からなる組成物に防黴剤を添加して溶融
押出されたシート状物の少なくとも片面に割布又は不織
布を溶融接着して得られた積層体を一軸延伸してなる透
湿・遮水シートが好適である。The moisture-permeable / waterproof sheet containing the fungicide is not particularly limited, but is preferably manufactured by the following method. That is, a laminate obtained by adding a fungicide to a composition comprising a polyolefin resin and an inorganic filler and melt-bonding a split or nonwoven fabric to at least one surface of a melt-extruded sheet is stretched uniaxially. A moisture-permeable / water-blocking sheet made of is preferred.
【００１０】ポリオレフィン系樹脂としては、ポリエチ
レン系樹脂やポリプロピレン系樹脂等が挙げられる。例
えば、低密度ポリエチレン樹脂、直鎖状低密度ポリエチ
レン樹脂、エチレン−酢酸ビニル共重合体やエチレンと
アクリル酸又はメタクリル酸等との共重合体等のポリエ
チレン系樹脂が望ましい。更に、密度が０．８５０乃至
０．９１５ｇ／ｃｍ２の直鎖状低密度ポリエチレン樹脂
が好適である。[0010] Examples of the polyolefin resin include a polyethylene resin and a polypropylene resin. For example, polyethylene resins such as a low-density polyethylene resin, a linear low-density polyethylene resin, an ethylene-vinyl acetate copolymer, and a copolymer of ethylene and acrylic acid or methacrylic acid are desirable. Further, a linear low-density polyethylene resin having a density of 0.850 to 0.915 g / cm 2 is preferable.
【００１１】又、ポリオレフィン系樹脂に混入させる無
機充填剤としては、炭酸カルシウムや炭酸マグネシウム
等の炭酸塩、水酸化マグネシウムや水酸化アルミニウム
等の水酸化物、酸化カルシウムや酸化亜鉛等の酸化物、
更には、アルミニウム粉、ゼオライト、硫酸バリウム、
或いは、タルクや珪藻土等の無機充填剤等が挙げられ
る。特に、炭酸カルシウムが好適である。それらの無機
充填剤の平均粒径としては、分散性や加工性、更には、
形成させる空隙の大きさ等から、０．５乃至１０μｍが
好ましい。又、無機充填剤の混入量としては、２０乃至
７０重量％が好適である。無機充填剤の混入量が少ない
と、延伸工程により多数の空隙を生じさせることが困難
であり、混入量が多くなると機械的強度やシール強度が
劣るようになる。Examples of the inorganic filler to be mixed with the polyolefin resin include carbonates such as calcium carbonate and magnesium carbonate, hydroxides such as magnesium hydroxide and aluminum hydroxide, oxides such as calcium oxide and zinc oxide, and the like.
Furthermore, aluminum powder, zeolite, barium sulfate,
Alternatively, an inorganic filler such as talc or diatomaceous earth may be used. In particular, calcium carbonate is preferred. As the average particle size of those inorganic fillers, dispersibility and processability, further,
It is preferably 0.5 to 10 μm in consideration of the size of the voids to be formed. The mixing amount of the inorganic filler is preferably 20 to 70% by weight. If the amount of the inorganic filler is small, it is difficult to form a large number of voids in the stretching process, and if the amount of the inorganic filler is large, the mechanical strength and the sealing strength become poor.
【００１２】更に、ポリオレフィン系樹脂と無機充填剤
との組成物に添加させる防黴剤としては、3，６−ジク
ロロピリタジンとパラクロロメタキシレノールの混合物
が好適である。そして、3，６−ジクロロピリタジンと
パラクロロメタキシレノールの混合物の配合割合は、
７：３乃至３：７の範囲内が好ましい。3，６−ジクロ
ロピリタジンとパラクロロメタキシレノールの配合割合
が、この範囲外の場合には、防黴効果が低下する場合が
有り、好ましくない。又、3，６−ジクロロピリタジン
とパラクロロメタキシレノールの混合物の添加量として
は、ポリオレフィン系樹脂と無機充填剤との組成物１０
０重量部に対して、０．０５乃至２．００重量部の範囲
内が好ましい。該混合物の添加量が、０．０５重量部未
満の場合には、防黴効果が十分に発揮され難いのに対
し、添加量が２．００重量部を超える場合には、それに
見合うだけの効果の向上が期待でき難いばかりかコスト
高となり経済面でも好ましくない。Further, as a fungicide to be added to the composition of the polyolefin resin and the inorganic filler, a mixture of 3,6-dichloropyridazine and parachloromethaxylenol is preferable. And the mixture ratio of the mixture of 3,6-dichloropyritazine and parachloromethaxylenol is
It is preferably in the range of 7: 3 to 3: 7. If the mixing ratio of 3,6-dichloropyridazine and parachlorometaxylenol is out of this range, the antifungal effect may decrease, which is not preferable. The amount of the mixture of 3,6-dichloropyridazine and parachlorometaxylenol is determined by the composition of the polyolefin resin and the inorganic filler.
It is preferably in the range of 0.05 to 2.00 parts by weight with respect to 0 parts by weight. When the amount of the mixture is less than 0.05 parts by weight, the fungicidal effect is not sufficiently exhibited, whereas when the amount exceeds 2.00 parts by weight, the effect corresponding thereto is sufficient. It is difficult to expect improvement of the cost, and the cost increases, which is not preferable in terms of economy.
【００１３】3，６−ジクロロピリタジンとパラクロロ
メタキシレノールの混合物をポリオレフィン系樹脂と無
機充填剤との組成物に添加させる方法としては、特に限
定されるものではないが、3，６−ジクロロピリタジン
とパラクロロメタキシレノールの混合物はポリオレフィ
ン系樹脂と無機充填剤との組成物に添加させただけでは
混合し難いので、予め濃度の高いマスターバッチを調整
し、これをポリオレフィン系樹脂と無機充填剤との組成
物に加えるのが好ましい。マスターバッチでの3，６−
ジクロロピリタジンとパラクロロメタキシレノールとの
混合物の濃度は、１．０乃至２０．０重量％が好適であ
る。The method of adding a mixture of 3,6-dichloropyridazine and parachloromethaxylenol to a composition of a polyolefin resin and an inorganic filler is not particularly limited, but 3,6-dichloro- The mixture of pyritadine and parachlorometaxylenol is difficult to mix simply by adding it to the composition of the polyolefin resin and the inorganic filler. It is preferably added to the composition with the agent. 3,6- in master batch
The concentration of the mixture of dichloropyridazine and parachlorometaxylenol is preferably 1.0 to 20.0% by weight.
【００１４】そして、ポリオレフィン系樹脂と無機充填
剤からなる組成物に防黴剤を添加してシート状に溶融押
出する。具体的には、ポリオレフィン系樹脂と無機充填
剤と防黴剤とを押出機に供給し、Ｔダイを用いてシート
状に溶融押出する。押出し温度としては、ポリオレフィ
ン系樹脂の融点よりも５０乃至２００℃高い温度が好適
である。押出し温度が低すぎると、割布等との良好なる
溶融接着が得られ難く、押出し温度が高すぎると、機械
的強度が低下するのみならず、防黴効果を低下させる場
合がある。Then, a fungicide is added to a composition comprising a polyolefin resin and an inorganic filler, and the mixture is melt-extruded into a sheet. Specifically, a polyolefin-based resin, an inorganic filler, and a fungicide are supplied to an extruder, and are melt-extruded into a sheet using a T-die. As the extrusion temperature, a temperature that is 50 to 200 ° C. higher than the melting point of the polyolefin resin is preferable. If the extrusion temperature is too low, it is difficult to obtain good melt adhesion with the splitting cloth and the like. If the extrusion temperature is too high, not only the mechanical strength is reduced, but also the fungicidal effect may be reduced.
【００１５】押出成形された溶融シート状物の少なくと
も片面に割布、或いは、不織布が圧接されて溶融接着さ
れた積層体が得られる。割布又は不織布を溶融シート状
物の片面に圧接させるには、割布又は不織布を沿わせた
ロールと押圧ロールとの間で行い、割布又は不織布を溶
融シート状物の両面に圧接させるには、割布又は不織布
を沿わせた２本のロール間で行うのが一般的である。
尚、溶融シート状物の両面に圧接させる割布、或いは、
不織布は、必ずしも同じものである必要はなく、片面に
は割布を、もう片面には不織布を圧接させたものでもか
まわない。A laminate is obtained in which a split cloth or a nonwoven fabric is pressed against at least one surface of the extruded molten sheet material and melt-bonded. In order to press the split cloth or the nonwoven fabric against one surface of the molten sheet material, the pressing is performed between a roll along which the split cloth or the nonwoven fabric is arranged and the pressing roll, and the split cloth or the nonwoven fabric is pressed against both surfaces of the molten sheet material. Is generally performed between two rolls along which a split cloth or a non-woven fabric is arranged.
In addition, the split cloth pressed against both sides of the molten sheet, or
The non-woven fabrics do not necessarily have to be the same, and may be a non-woven fabric pressed against one side and a non-woven cloth against the other side.
【００１６】得られた積層体は、一軸延伸されて無機充
填剤とポリオレフィン系樹脂相との境界面に微細な空隙
を生じ、透湿性と遮水性とを共に有する防黴剤を含有し
た透湿・遮水シートとなる。一軸延伸方法としては、ロ
ール延伸、特に、多段ロール延伸が好適である。又、延
伸温度としては、ロール表面温度を３０℃乃至１００℃
に設定して行われ、延伸倍率としては、縦方向に１．０
５乃至５．００倍に引き伸ばされるのが一般的である。
尚、透湿・遮水シートの厚みとしては、ポリオレフィン
系樹脂からなる微細な空隙を有するシート状部の厚みが
１５乃至５０μｍで、積層される割布又は不織布の目付
が１０乃至５０ｇ／ｍ２であるものが、畳床被覆用シー
トとして好適である。The resulting laminate is uniaxially stretched to form fine voids at the interface between the inorganic filler and the polyolefin-based resin phase, and to contain a moisture permeable agent containing a fungicide having both moisture permeability and water barrier properties.・ It becomes a water impermeable sheet. As the uniaxial stretching method, roll stretching, particularly, multi-stage roll stretching is suitable. As the stretching temperature, the roll surface temperature should be 30 ° C to 100 ° C.
At a stretch ratio of 1.0 in the longitudinal direction.
It is generally stretched 5 to 5.00 times.
The moisture-permeable and water-shielding sheet has a thickness of 15 to 50 μm in a sheet portion having fine voids made of a polyolefin resin, and a basis weight of the laminated cloth or nonwoven fabric to be laminated is 10 to 50 g / m 2. Is suitable as a tatami floor covering sheet.
【００１７】[0017]
【作用】本発明の防黴性能を有する畳床被覆用シートを
畳床と畳表の間に挿入させて作られた畳は、畳の上に水
等をこぼしたり、畳床から多量の水分が蒸散しても、該
畳床被覆用シートには黴が発生しない。即ち、畳の上に
水等がこぼされた時、こぼされた水は畳表を透過して、
畳床被覆用シートの表面に達する。そして、該シートが
遮水性を有しているので、該シートの表面に達した水
は、畳床に吸水されずにその場に留まる。そして、室内
の湿度が高い時等には、該水等が畳表を通って蒸散され
難く、該シートの表面に長時間付着した状態が続き、黴
が発生し易くなっている。しかし、本発明の畳床被覆用
シートは防黴剤を含んでいるので、該シートの表面に水
等が長時間付着していても、黴が発生しない。The tatami mat made by inserting the sheet for covering a tatami floor having the antifungal property of the present invention between the tatami floor and the tatami mat can spill water or the like on the tatami mat, or a large amount of water can be discharged from the tatami mat. No mold is generated on the sheet for covering the tatami floor even if it evaporates. That is, when water is spilled on the tatami mat, the spilled water penetrates the tatami mat,
It reaches the surface of the tatami floor covering sheet. Then, since the sheet has water blocking properties, the water that has reached the surface of the sheet stays there without being absorbed by the tatami floor. When the humidity in the room is high, the water or the like is unlikely to evaporate through the tatami mat, and the state of adhering to the surface of the sheet for a long time continues, so that mold is easily generated. However, since the tatami floor covering sheet of the present invention contains a fungicide, even if water or the like adheres to the surface of the sheet for a long time, no mold is generated.
【００１８】又、梅雨時等の湿度が高くて畳床の含水率
が高くなっている場合、畳床から蒸散した多量の水分は
畳床被覆用シートの裏面に達し、該シートが透湿性を有
していても透過しきれずに該シートの裏面に結露を生じ
る。特に、室温が急激に高くなった場合には畳床からの
水分の蒸散が多くなり、該シートの裏面に結露が生じ易
くなる。そして、畳床被覆用シートの裏面に結露した水
分は、該シートが透湿性を有しているので、徐々に該シ
ートを透過して室内に蒸散される。しかし、室内の湿度
が高く該シートを透過した水分が室内に蒸散され難い場
合には、該シートの裏面に長時間結露した状態が続き、
黴が発生し易くなっている。しかし、本発明の畳床被覆
用シートは防黴剤を含んでいるので、該シートの裏面に
長時間結露が生じていても、黴が発生しない。When the humidity is high during the rainy season or the like and the moisture content of the tatami floor is high, a large amount of water evaporating from the tatami floor reaches the back of the tatami floor covering sheet, and the tatami floor has a high moisture permeability. Even if it has, it does not penetrate completely and forms dew on the back surface of the sheet. In particular, when the room temperature rises sharply, the evaporation of moisture from the tatami floor increases, and dew condensation easily occurs on the back surface of the sheet. The moisture condensed on the back surface of the tatami floor covering sheet gradually passes through the sheet and evaporates into the room because the sheet has moisture permeability. However, when the humidity in the room is high and the moisture permeating the sheet is difficult to evaporate into the room, the state of dew condensation on the back surface of the sheet for a long time continues,
Mold is easily generated. However, since the tatami floor covering sheet of the present invention contains a fungicide, even if dew condensation occurs on the back surface of the sheet for a long time, no mold is generated.
【００１９】[0019]
【実施例】以下、実施例及び比較例を示し、本発明の内
容をより具体的に説明する。 〔実施例１〕線状低密度ポリエチレン樹脂４５重量％と
炭酸カルシウム５５重量％からなる樹脂組成物１００重
量部に、防黴剤として、３，６−ジクロロピリタジンと
パラクロロメタキシレノールの等量混合物が０．１重量
部添加されるように、マスターバッチを用いて混合さ
せ、厚さが約３５μｍの溶融フィルム状物を押出したこ
の溶融フィルム状物の片面に、芯層が高密度ポリエチレ
ン樹脂で、鞘部が低密度ポリエチレン樹脂からなる目付
けが３０ｇ／ｍ２の割布を、圧接して積層させた。この
積層フィルムを縦一軸方向に１．１５倍に延伸して防黴
剤を含有した透湿・遮水シートを得た。The present invention will now be described more specifically with reference to examples and comparative examples. [Example 1] 100 parts by weight of a resin composition comprising 45% by weight of a linear low-density polyethylene resin and 55% by weight of calcium carbonate, and equivalent amounts of 3,6-dichloropyridazine and parachlorometaxylenol as fungicides were added. A mixture was added using a masterbatch such that 0.1 part by weight of the mixture was added, and a molten film having a thickness of about 35 μm was extruded. Then, a split cloth having a sheath portion made of a low-density polyethylene resin and having a basis weight of 30 g / m 2 was pressed and laminated. This laminated film was stretched 1.15 times in the longitudinal uniaxial direction to obtain a moisture-permeable / water-proof sheet containing a fungicide.
【００２０】得られた防黴剤を含有した透湿・遮水シー
トを、稲藁からなる畳床と天然い草からなる畳表との間
に畳床被覆用シートとして挿入させ、畳を製造した。得
られた畳を部屋に敷き、その畳の上に５０ｃｃの水をこ
ぼした。しかし、こぼした水が畳床被覆用シートの表面
に長時間付着していても、該シートの表面に黴が発生す
るようなこともなく、室内の生活環境は良好であった。
又、部屋に敷かれた畳は、梅雨時に畳床被覆用シートの
裏面に結露が生じても、該シートの裏面に黴が発生する
ようなこともなく、衛生的で、しかも、畳床の腐敗を促
すようなこともなかった。The obtained moisture-permeable / waterproof sheet containing the fungicide was inserted as a sheet for covering the tatami floor between the tatami floor made of rice straw and the tatami mat made of natural rush, thereby producing tatami mats. The obtained tatami mat was laid in a room, and 50 cc of water was spilled on the tatami mat. However, even if the spilled water adhered to the surface of the tatami floor covering sheet for a long time, no mold was generated on the surface of the sheet, and the living environment in the room was good.
Moreover, the tatami mats laid in the room are sanitary, and even if dew condensation occurs on the back surface of the tatami floor covering sheet during the rainy season, no mold is generated on the back surface of the sheet, and the tatami mat floor is covered. There was nothing to promote corruption.
【００２１】尚、この実施例で用いた畳床被覆用シート
の防黴性能は、ＭＩＬ ＳＴＤ ８１０Ｄ Ｍｅｔｈｏ
ｄ ５０８・３変法により試験をした結果、２８日後で
も評価０（菌の発育が全く見られない。）であった。し
かも、実施例１に用いた畳床被覆用シートは、遮水性を
有し、しかも、透湿度が８０００ｇ／ｍ２・２４ｈｒで
あった。The tatami floor covering sheet used in this example had a fungicide resistance of MIL STD 810D Metho.
As a result of a test by a modified method of d5083, the evaluation was 0 even after 28 days (the growth of the bacteria was not observed at all). Moreover, Tatamiyuka coated sheet used in Example 1 has a water shielding, moreover, the moisture permeability was 8000g / m 2 · 24hr.
【００２２】〔比較例１〕畳床被覆用シートとして、防
黴剤を添加しない以外は実施例１と同様な方法によって
透湿・遮水シートを得た。得られた透湿・遮水シート
を、実施例１と同様、稲藁からなる畳床と天然い草から
なる畳表との間に畳床被覆用シートとして挿入させ、畳
を製造した。得られた畳を部屋に敷き、実施例１と同
様、畳の上に５０ｃｃの水をこぼした。その結果、こぼ
した水が畳床被覆用シートの表面に長時間付着し、該シ
ートの表面に黴が発生し、室内は不衛生で生活環境が悪
かった。又、部屋に敷かれた畳は、梅雨時に畳床被覆用
シートの裏面に結露が生じ、該シートの裏面に黴が発生
し、不衛生で、しかも、畳床の腐敗も早かった。Comparative Example 1 A moisture-permeable / water-proof sheet was obtained as a sheet for covering a tatami floor in the same manner as in Example 1 except that no fungicide was added. The obtained moisture-permeable / water-impervious sheet was inserted as a sheet for covering a tatami floor between a tatami floor made of rice straw and a tatami mat made of natural rush as in Example 1, thereby producing a tatami mat. The obtained tatami mat was laid in a room, and 50 cc of water was spilled on the tatami mat as in Example 1. As a result, the spilled water adhered to the surface of the sheet for covering the tatami floor for a long time, mold was generated on the surface of the sheet, and the room was unsanitary and the living environment was poor. Also, the tatami mats laid in the room had dew condensation on the back surface of the tatami floor covering sheet during the rainy season, and mold was generated on the back surface of the sheet, which was unsanitary and the tatami floor rotted quickly.
【００２３】尚、この比較例で用いられた畳床被覆用シ
ートの防黴性は、実施例１と同様、ＭＩＬ ＳＴＤ ８
１０Ｄ Ｍｅｔｈｏｄ ５０８・３変法により試験した
結果、２１日後で評価１（僅かに菌の発育が見られ
る。）、２８日後で評価２（少し菌の発育が見られ
る。）であった。The sheet for covering a tatami floor used in this comparative example has the antifungal property of MIL STD 8 as in Example 1.
As a result of a test by the 10D Method 508.3 modified method, it was evaluated 1 (slight growth of fungi was observed) 21 days later, and evaluated 2 (slight growth of fungi was observed) 28 days later.
【００２４】[0024]
【効果】本発明の防黴性能を有する畳床被覆用シートを
用いた畳は、畳の上に水等をこぼし、該シートの表面に
その水等が長時間付着したり、或いは、畳床から蒸散し
た水分が該シートの裏面に結露して長時間消えずにいて
も、該シートに黴が発生しないので、室内に黴の臭いが
漂ったり、黴の胞子が室内に浮遊したりするようなこと
もなく、衛生的で、生活環境が良好である。しかも、本
発明の防黴性能を有する畳床被覆用シートを用いた畳
は、畳床が腐敗し難いので、長持ちがする。According to the tatami mat using the sheet for covering a tatami floor having the antifungal property of the present invention, water or the like is spilled on the tatami, and the water or the like adheres to the surface of the sheet for a long time, or Even if the water evaporating from the sheet does not disappear for a long time due to condensation on the back surface of the sheet, no mold is generated on the sheet, so that the mold smell drifts in the room or mold spores float in the room. It is hygienic and has a good living environment. In addition, the tatami mat using the tatami floor covering sheet having the fungicidal performance of the present invention has a long life because the tatami floor hardly rots.
Claims (3)
なることを特徴とする防黴性能を有する畳床被覆用シー
ト。1. A sheet for covering a tatami floor having a fungicidal property, comprising a moisture-permeable / waterproof sheet containing a fungicide.
ポリオレフィン系樹脂と無機充填剤からなる組成物に防
黴剤を添加して溶融押出されたシート状物の少なくとも
片面に割布又は不織布を溶融接着して得られた積層体を
一軸延伸してなるものであることを特徴とする請求項１
に記載された防黴性能を有する畳床被覆用シート。2. A moisture-permeable / water-proof sheet containing a fungicide,
A laminate obtained by adding a fungicide to a composition comprising a polyolefin-based resin and an inorganic filler and melt-adhering a split or nonwoven fabric to at least one surface of a melt-extruded sheet is obtained by uniaxially stretching. 2. The method according to claim 1, wherein
2. A sheet for covering a tatami floor having a fungicidal performance described in 1. above.
とパラクロロメタキシレノールの混合物であることを特
徴とする請求項１乃至２のいずれかに記載された防黴性
能を有する畳床被覆用シート。3. The tatami floor having fungicidal properties according to claim 1, wherein the fungicide is a mixture of 3,6-dichloropyridazine and parachlorometaxylenol. Sheet for coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10358586A JP2000179132A (en) | 1998-12-17 | 1998-12-17 | Tatami padding coating sheet having mildew proofing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10358586A JP2000179132A (en) | 1998-12-17 | 1998-12-17 | Tatami padding coating sheet having mildew proofing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000179132A true JP2000179132A (en) | 2000-06-27 |
Family
ID=18460082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10358586A Pending JP2000179132A (en) | 1998-12-17 | 1998-12-17 | Tatami padding coating sheet having mildew proofing performance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000179132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084198A (en) * | 2002-08-23 | 2004-03-18 | Diaron Kk | Washable high-water-resistant tatami mat |
| JP2018104981A (en) * | 2016-12-26 | 2018-07-05 | 積水成型工業株式会社 | Laminated tatami surface and tatami using thereof |
-
1998
- 1998-12-17 JP JP10358586A patent/JP2000179132A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084198A (en) * | 2002-08-23 | 2004-03-18 | Diaron Kk | Washable high-water-resistant tatami mat |
| JP2018104981A (en) * | 2016-12-26 | 2018-07-05 | 積水成型工業株式会社 | Laminated tatami surface and tatami using thereof |
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