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JP3143836B2 - Nonwoven composite sheet - Google Patents

Nonwoven composite sheet

Info

Publication number
JP3143836B2
JP3143836B2 JP9609292A JP9609292A JP3143836B2 JP 3143836 B2 JP3143836 B2 JP 3143836B2 JP 9609292 A JP9609292 A JP 9609292A JP 9609292 A JP9609292 A JP 9609292A JP 3143836 B2 JP3143836 B2 JP 3143836B2
Authority
JP
Japan
Prior art keywords
composite sheet
thermoplastic resin
sheet
web
fiber
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.)
Expired - Lifetime
Application number
JP9609292A
Other languages
Japanese (ja)
Other versions
JPH05272045A (en
Inventor
政弘 和田
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.)
Asahi Kasei Corp
Original Assignee
Asahi Kasei 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 Asahi Kasei Corp filed Critical Asahi Kasei Corp
Priority to JP9609292A priority Critical patent/JP3143836B2/en
Publication of JPH05272045A publication Critical patent/JPH05272045A/en
Application granted granted Critical
Publication of JP3143836B2 publication Critical patent/JP3143836B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Nonwoven Fabrics (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、特に建築用下地材とし
て有用な複合シートに関する。より詳細には、本発明
は、特定範囲の繊径の三次元網状繊維と言う特殊糸から
なる不織布状ウエブを中間層として用いたので、特に釘
を打った時の釘軸回り水蜜シール性に優れた 、防水
性、透湿性、通気性に優れた不織布複合シートに関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite sheet particularly useful as a base material for building. More specifically, the present invention relates to a special yarn called a three-dimensional network fiber having a specific range of fiber diameter.
The present invention relates to a nonwoven fabric composite sheet which is excellent in waterproofness, moisture permeability, and air permeability, particularly, having excellent sealing properties around a nail axis when nailing is performed, since the nonwoven fabric web is used as an intermediate layer .

【0002】[0002]

【従来の技術】従来、熱可塑性樹脂製の三次元網状繊維
の不織布状ウエブは耐水圧はあるが、触ると毛羽が立っ
たり、強度が弱くて取扱い性が悪く、あくまでも熱圧・
接着して賦形シートとする前の中間品として取り扱われ
てきた。
2. Description of the Related Art Conventionally, a nonwoven web of a three-dimensional network fiber made of a thermoplastic resin has water pressure resistance, but fluffs up when touched, and the handleability is poor due to low strength.
It has been treated as an intermediate product before being glued into a shaped sheet.

【0003】最近、建築用等の目的で防水・透湿機能を
持つシートが使用され出しているが、壁、床、屋根など
に止める時に、通常釘、タッカー等を使用するために、
その釘等を打ちつけた部分から雨水などの水が入り込む
欠点があった。
[0003] Recently, sheets having a waterproof / moisture permeable function have been used for architectural purposes and the like. However, when the sheet is fixed to a wall, floor, roof, or the like, a nail, a tucker, or the like is usually used.
There is a drawback that water such as rainwater enters from the part where the nail or the like is hit.

【0004】[0004]

【発明が解決しようとする課題】本発明者は、上記三次
元網状繊維の不織布状ウエブの上下を通気性、透湿性の
ある熱可塑性樹脂シート状物でカバーした複合シートを
釘で合板等に止め、上から水を流しても、該不織布状ウ
エブの網状繊維要素が釘の回りにまとわりついて防水出
来、更に防水、透湿機能も保持できることが分かった。
SUMMARY OF THE INVENTION The inventor of the present invention has made a composite sheet in which the upper and lower sides of a nonwoven web of three-dimensional network fibers are covered with a breathable and moisture-permeable thermoplastic resin sheet into nails or the like with a nail. It was found that even when the water was stopped and water was allowed to flow from above, the reticulated fiber elements of the nonwoven web could be adhered to the nails and waterproofed, and furthermore, the waterproof and moisture-permeable functions could be maintained.

【0005】[0005]

【課題を解決するための手段】すなわち、本発明は; 熱可塑性樹脂製の繊径が0.1〜30μmの三次元
網状繊維の不織布状ウエブを中間層として、その上下に
通気性・透湿性のある熱可塑性樹脂シート状物を上記網
状繊維の自由度を失わない範囲で一体化したことを特徴
とする複合シートである。さらに、 該ウエブの密度
が0.01〜0.5g/cm3 、厚みが0.1〜3mm
である点にも特徴を有する。 上記の複合シートを用
いた建築用下地材にも特徴がある。
Means for Solving the Problems: The present invention provides: a nonwoven web of a three-dimensional mesh fiber made of a thermoplastic resin having a fiber diameter of 0.1 to 30 μm as an intermediate layer, and a gas permeable / moisture permeable layer above and below it. A composite sheet characterized in that a thermoplastic resin sheet having a shape is integrated within a range that does not lose the degree of freedom of the reticulated fiber. Further, the web has a density of 0.01 to 0.5 g / cm 3 and a thickness of 0.1 to 3 mm.
Is also characteristic. There is also a feature in the architectural base material using the above composite sheet.

【0006】以下、本発明を詳細に説明する。複合シー
トの中間層として用いる不織布状ウエブは、代表的には
フラッシュ紡糸により得られる熱可塑性樹脂製の繊径が
0.1〜30μmの三次元網目状繊維であり、不織布状
ウエブの平面図である図3で示されるようにランダムに
交絡されており、図1の複合シートの断面図に示すよう
にその交絡点イが点接着されていても良いが、熱接着に
より自由度のない不織布シート製品までに至らない、い
わゆる中間品的なものであり、代表的には旭化成工業
(株)の商品名「ルクサー」の熱接着する以前の不織布
状ウエブがある。
Hereinafter, the present invention will be described in detail. The nonwoven web used as the intermediate layer of the composite sheet typically has a fiber diameter of thermoplastic resin obtained by flash spinning.
It is a three-dimensional network fiber of 0.1 to 30 μm, which is randomly entangled as shown in FIG. 3, which is a plan view of the nonwoven web, and entangled as shown in the cross-sectional view of the composite sheet of FIG. Dots may be point-bonded, but they are so-called intermediate products that do not lead to non-woven sheet products with no degree of freedom due to thermal bonding. Typically, the product name “Luxer” of Asahi Kasei Kogyo Co., Ltd. There is a non-woven web before heat bonding.

【0007】該不織布状ウエブは、密度0.01〜0.
5g/cm3 、好ましくは0.1〜0.3g/cm3
厚み0.1〜3mm、好ましくは0.2〜1mmであ
り、その網目状繊維の繊径0.1〜30μm、好ましく
は1〜10μmであって、個々の繊維要素は剥がし得る
程度の相互交絡状態にある。
[0007] The nonwoven web has a density of 0.01 to 0.5.
5 g / cm 3 , preferably 0.1 to 0.3 g / cm 3 ,
The thickness is 0.1 to 3 mm, preferably 0.2 to 1 mm, and the fineness of the mesh fiber is 0.1 to 30 μm, preferably 1 to 10 μm, and the individual fiber elements are mutually entangled to the extent that they can be peeled off. In state.

【0008】また、ウエブの構成材料は、ポリエチレ
ン、ポリプロピレン、エチレン系共重合体、プロピレン
系共重合体などのポリオレフィン系樹脂を主体とした熱
可塑性樹脂である。中間層である不織布状ウエブの上下
に積層する通気性・透湿性のある熱可塑性樹脂シート状
物としては、微多孔フィルムやスパンボンド法により得
られた不織布、更に、フラッシュ紡糸法で得られた三次
元網目状繊維積層体を熱接着することにより得られる不
織布シート、例えば旭化成工業(株)の商品名「ルクサ
ー」などを挙げることができるが、通気性・透湿性のあ
る熱可塑性樹脂シート状物なら特に制限されない。
The constituent material of the web is a thermoplastic resin mainly composed of a polyolefin resin such as polyethylene, polypropylene, an ethylene copolymer, and a propylene copolymer. As a thermoplastic resin sheet having air permeability and moisture permeability to be laminated on the upper and lower sides of the nonwoven web as an intermediate layer, a nonwoven fabric obtained by a microporous film or a spunbond method, and further obtained by a flash spinning method. A nonwoven fabric sheet obtained by thermally bonding the three-dimensional mesh fiber laminate, such as "Luxer" (trade name of Asahi Kasei Kogyo Co., Ltd.), can be mentioned. There is no particular limitation on things.

【0009】通気性・透湿性のある熱可塑性樹脂シート
状物は、望ましくは微細孔を有し、孔径0.01〜50
0μm、好ましくは0.05〜50μmであり、ガーレ
ー式透気度が0.1〜10,000秒/100cc、好
ましくは1〜5,000秒/100ccで、常温で水を
通さないものであり、耐水圧が500〜3,000mm
2 Oのものである。
The thermoplastic resin sheet having air permeability and moisture permeability desirably has fine pores and a pore diameter of 0.01 to 50.
0 μm, preferably 0.05 to 50 μm, Gurley-type air permeability of 0.1 to 10,000 sec / 100 cc, preferably 1 to 5,000 sec / 100 cc, and impervious to water at normal temperature. , Withstand water pressure 500 ~ 3,000mm
H 2 O.

【0010】該熱可塑性樹脂シート状物の材質について
は、ポリエチレン、ポリプロピレン等のポリオレフィン
系樹脂、セルロースエステル、ポリアミドなどの熱可塑
性樹脂からのシート又はフィルム形成材料を挙げること
ができる。
Examples of the material of the thermoplastic resin sheet include a sheet or film forming material made of a polyolefin resin such as polyethylene and polypropylene, and a thermoplastic resin such as cellulose ester and polyamide.

【0011】また、上記微多孔フィルムとしては、熱可
塑性樹脂フィルムを不完全延伸する方法、化学的に熱可
塑性樹脂の溶解度差を利用する方法、溶媒可溶の固体微
粒子を混入後に溶出する方法、無機フィーラーを混入後
にポリオレフィン系樹脂を成膜後、該無機フィーラーを
抽出する方法等を挙げることができるが、いわゆる微多
孔膜の使用が一般的である。
As the microporous film, a method of incompletely stretching a thermoplastic resin film, a method of utilizing the solubility difference of a thermoplastic resin chemically, a method of eluting after mixing solvent-soluble solid fine particles, A method of extracting the inorganic feeler after forming a polyolefin-based resin after mixing the inorganic feeler, and the like, may be mentioned, but a so-called microporous membrane is generally used.

【0012】次に、本発明の複合シート、特に不織布複
合シートを製造するには、不織布状ウエブを中間層とし
て、その上下に通気性・透湿性のある熱可塑性樹脂シー
ト状物を上記網状繊維の自由度を失わない範囲で、それ
自体公知の溶着手段で一体化することにより得られる。
Next, in order to manufacture the composite sheet of the present invention, particularly a nonwoven composite sheet, a nonwoven web is used as an intermediate layer, and a thermoplastic resin sheet having air permeability and moisture permeability is placed above and below the intermediate fiber. Within a range that does not lose the degree of freedom.

【0013】該溶着手段としては、部分熱圧着、超音波
溶着などを挙げることができる。なお、複合シートの形
態としては、図1に示されるような熱圧着による平板状
シートの他に、図2に示されるような部分圧着部4を持
つ凹凸状シートなど、使用する溶着用の型材により種々
の形態を取りうる。
Examples of the welding means include partial thermocompression bonding and ultrasonic welding. In addition, as a form of the composite sheet, in addition to a flat sheet formed by thermocompression as shown in FIG. 1, an uneven sheet having a partially press-bonded portion 4 as shown in FIG. Can take various forms.

【0014】本発明の複合シートは、中間層として自由
度の大きい熱可塑性樹脂製の繊径が0.1〜30μmの
三次元網状繊維の不織布状ウエブを用いたので、釘打ち
の時でも三次元網状繊維が釘の周りにまとわりついい
て、特別の加工を不織布状ウエブに施さなくとも水漏れ
の恐れがない。また、上下に通気性・透湿性のある熱可
塑性樹脂シート状物を添えたので、得られる複合シート
の取り扱い性が向上すると共に、耐水圧性も従来のルク
サーのような通気性・透湿性と比較しても遜色がない。
The composite sheet of the present invention uses a nonwoven web of a three-dimensional mesh fiber made of a thermoplastic resin having a large degree of freedom and having a fiber diameter of 0.1 to 30 μm as an intermediate layer. Even in this case, the three-dimensional net-like fibers cling around the nail, and there is no danger of water leakage even if special processing is not performed on the non-woven web. In addition, since a thermoplastic resin sheet with air permeability and moisture permeability is added to the top and bottom, the handleability of the resulting composite sheet is improved, and the water pressure resistance is also compared to the air permeability and moisture permeability like conventional Luxer There is no inferiority.

【0015】本発明の複合シートは、特に上記のような
優れた釘打ち水蜜シール性を有していて、かつ取り扱い
性、通気性・透湿性も良好であるので、屋根下地材、壁
下地材等として特に有用である。
The composite sheet of the present invention has the excellent nailing / water-honey sealing properties described above, and also has good handleability, air permeability and moisture permeability. It is particularly useful as such.

【0016】[0016]

【実施例】本発明を実施例により具体的に説明するが、
これらは本発明の範囲を制限しない。なお、本発明の複
合シートの性能は、下記の方法により測定した。 釘穴シール性1点法:10mm厚みの耐水ベニヤ上
にサンプルを貼り、これに釘を打ち込み、図のように内
径100mmの塩ビパイプを置き、周囲をシールした
後、150mmまで着色水を張り、24時間放置し漏水
の有無を調べる。なお、釘は、2φ×45mmのものを
使用し、サンプルとベニヤの間に漏水評価用の濾紙を入
れて置く。
EXAMPLES The present invention will be described specifically with reference to Examples.
They do not limit the scope of the invention. The performance of the composite sheet of the present invention was measured by the following method. Nail hole sealing property 1-point method : A sample was stuck on a water-resistant veneer having a thickness of 10 mm, a nail was driven into the veneer, a PVC pipe having an inner diameter of 100 mm was placed as shown in the figure, and the periphery was sealed. Leave for 24 hours to check for water leakage. In addition, a nail of 2φ × 45 mm is used, and a filter paper for water leakage evaluation is put between the sample and the veneer.

【0017】 耐水圧:JIS−L1092における
耐水度試験A法(低水圧法)静水圧法により耐水圧を測
定した。 透湿性:JIS−L1099A−1法に準じて、温
度30℃、湿度90%RHの条件にて透湿度を測定し
た。 通気性:JIS−L1096B法に準じて(ガーレ
法)透気度を測定した。
Water resistance : Water resistance was measured by the hydrostatic test A method (low water pressure method) according to JIS-L1092. Moisture permeability : The moisture permeability was measured at a temperature of 30 ° C. and a humidity of 90% RH according to the JIS-L1099A-1 method. Air permeability : Air permeability was measured according to the JIS-L1096B method (Gurley method).

【0018】図2において、フラッシュ紡糸法により得
られた高密度ポリエチレンの三次元網状繊維ウエブ(旭
化成工業(株)製商品名「ルクサー」)の熱接着前の目
付け100g/m2 、密度0.3g/cm3 のウエブ2
を、同様にフラッシュ紡糸法により得られた高密度ポリ
エチレン不織布(旭化成工業(株)製商品名「ルクサ
ー」H2030)で挟み、5mm巾で200mm間隔に
超音波溶着で一体化して複合シート1を得た。
Referring to FIG. 2, a three-dimensional web of high-density polyethylene (“Luxer” manufactured by Asahi Kasei Kogyo Co., Ltd.) obtained by flash spinning has a basis weight of 100 g / m 2 and a density of 0.1 g before heat bonding. 3 g / cm 3 web 2
Is sandwiched between high-density polyethylene nonwoven fabrics (trade name “Luxar” H2030 manufactured by Asahi Kasei Kogyo Co., Ltd.) similarly obtained by a flash spinning method, and is integrated by ultrasonic welding at 200 mm intervals with a width of 5 mm to obtain a composite sheet 1. Was.

【0019】この複合シート1を釘穴シール性1点法に
より、釘穴のシール性を測定した。その結果、本発明の
複合シート1は、従来防水シートとして使用されている
高密度ポリエチレン不織布(旭化成工業(株)製商品名
「ルクサー」H2080)と比較すると、下記の通りと
なった。
The composite sheet 1 was measured for the nail hole sealing property by the one-point nail sealing property method. As a result, the composite sheet 1 of the present invention was as follows as compared with a high-density polyethylene nonwoven fabric (trade name “Luxar” H2080 manufactured by Asahi Kasei Corporation) conventionally used as a waterproof sheet.

【0020】[0020]

【表1】 [Table 1]

【0021】[0021]

【発明の効果】本発明の複合シートは、優れた釘打ち水
蜜シール性を有していて、かつ取り扱い性、通気性・透
湿性も良好であるので、屋根下地材、壁下地材等として
特に有用である。
The composite sheet of the present invention has an excellent nailing / water honey sealing property, and has good handleability, air permeability and moisture permeability. Useful.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の複合シートの1つの具体例を示す断面
図である。
FIG. 1 is a cross-sectional view showing one specific example of the composite sheet of the present invention.

【図2】本発明の複合シートの他の具体例を示す断面図
である。
FIG. 2 is a cross-sectional view showing another specific example of the composite sheet of the present invention.

【図3】本発明の複合シートを構成する中間層の不織布
状ウエブの表面状態を示す模式図である。 1:複合シート 2:三次元網状ウエブ 3:通気性・透湿性シート 4:部分圧着部 5:三次元網状繊維 イ:点接着部
FIG. 3 is a schematic diagram showing a surface state of a nonwoven fabric web of an intermediate layer constituting the composite sheet of the present invention. 1: composite sheet 2: three-dimensional mesh web 3: air-permeable / moisture-permeable sheet 4: partially crimped part 5: three-dimensional mesh fiber a: point bonding part

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 熱可塑性樹脂製の繊径が0.1〜30μ
mの三次元網状繊維の不織布状ウエブを中間層として、
その上下に通気性・透湿性のある熱可塑性樹脂シート状
物を上記網状繊維の自由度を失わない範囲で一体化した
ことを特徴とする複合シート。
1. A fiber made of a thermoplastic resin having a diameter of 0.1 to 30 μm.
m as a middle layer of a nonwoven web of three-dimensional reticulated fibers,
A composite sheet wherein a thermoplastic resin sheet having air permeability and moisture permeability is integrated on the upper and lower sides within a range where the degree of freedom of the mesh fiber is not lost.
【請求項2】 該ウエブの密度が0.01〜0.5g/
cm3 、厚みが0.1〜3mmであることを特徴とする
請求項1に記載の複合シート。
2. A web having a density of 0.01 to 0.5 g /
The composite sheet according to claim 1, wherein the composite sheet has a thickness of 0.1 to 3 mm.
【請求項3】 請求項1又は2に記載の複合シートを用
いたことを特徴とする建築用下地材。
3. A building base material using the composite sheet according to claim 1 or 2.
JP9609292A 1992-03-24 1992-03-24 Nonwoven composite sheet Expired - Lifetime JP3143836B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9609292A JP3143836B2 (en) 1992-03-24 1992-03-24 Nonwoven composite sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9609292A JP3143836B2 (en) 1992-03-24 1992-03-24 Nonwoven composite sheet

Publications (2)

Publication Number Publication Date
JPH05272045A JPH05272045A (en) 1993-10-19
JP3143836B2 true JP3143836B2 (en) 2001-03-07

Family

ID=14155758

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9609292A Expired - Lifetime JP3143836B2 (en) 1992-03-24 1992-03-24 Nonwoven composite sheet

Country Status (1)

Country Link
JP (1) JP3143836B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1277670C (en) 2002-01-09 2006-10-04 旭化成医疗株式会社 Fusion-bonded product from non-porous material and porous material
JP2005113678A (en) * 2003-09-18 2005-04-28 Dupont-Asahi Flushspan Products Kk Roofing base material having adhesive surface
JP2006266002A (en) * 2005-03-25 2006-10-05 Ever Kk Roof structure
GB2427357A (en) * 2005-06-22 2006-12-27 Bandvulc Tyres Ltd Carpet underlay
JP2007186996A (en) * 2007-04-20 2007-07-26 Ever Kk Structure of roof
CN117904795B (en) * 2024-03-20 2024-10-11 江苏青昀新材料有限公司 High-air-permeability flash evaporation sheet and manufacturing method thereof

Also Published As

Publication number Publication date
JPH05272045A (en) 1993-10-19

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