JPS5954558A - Manufacture of composite sheet - Google Patents

Manufacture of composite sheet

Info

Publication number
JPS5954558A
JPS5954558A JP16510282A JP16510282A JPS5954558A JP S5954558 A JPS5954558 A JP S5954558A JP 16510282 A JP16510282 A JP 16510282A JP 16510282 A JP16510282 A JP 16510282A JP S5954558 A JPS5954558 A JP S5954558A
Authority
JP
Japan
Prior art keywords
sheet
air permeability
porous
polypropylene
resin
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.)
Granted
Application number
JP16510282A
Other languages
Japanese (ja)
Other versions
JPH0148141B2 (en
Inventor
俊一 中村
岡村 健次
金子 新吾
角 清
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.)
Tokuyama Corp
Original Assignee
Tokuyama 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 Tokuyama Corp filed Critical Tokuyama Corp
Priority to JP16510282A priority Critical patent/JPS5954558A/en
Publication of JPS5954558A publication Critical patent/JPS5954558A/en
Publication of JPH0148141B2 publication Critical patent/JPH0148141B2/ja
Granted legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 本発明は通気性を有する複合シートσ)製造方法に関す
る。相しくは、無機充填剤、特定の樹脂及びポリプロピ
レンよりなる組成物のシート状物を延伸して得た多孔質
シートにQ!f定の補強材をラミネートし【得た、ラミ
ネート強度が犬きく−11つ通気性を有3る複合シート
の製造方法でホ)る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a breathable composite sheet σ). Suitably, Q! A reinforcing material having a constant f is laminated to produce a composite sheet having a laminated strength of 1.1 and 3.0 and air permeability.

一般にボIJ 、lしフィンに無機充填剤を40重斧チ
以上の多1;に充填し、シート状に成形した後、これを
−軸または二軸方向に延伸することによって、微多孔質
ゲートを得ることが出来る。
In general, a microporous gate is formed by filling the IJ and fins with an inorganic filler to a thickness of 40 or more times, forming it into a sheet, and then stretching it in the -axis or biaxial direction. can be obtained.

このようにし7て得られたポリオレフィン多孔質シート
は、Nak得σ)風合を有し、合成樹脂に將有のベトつ
作出のない紙あるいは皮革に近い感触を有する。まI、
−1かかる多孔質シートは通気+1および透慢性に優れ
、結露現象を生じ11いためIcX特に壁装イアjとし
て好適で力、す、そのほか各種の包装料などの用途が期
待される。
The polyolefin porous sheet thus obtained has a texture similar to that of paper or leather without the stickiness that is present in synthetic resins. Well,
-1 Such a porous sheet has excellent air permeability and permeability, and does not cause dew condensation, so it is suitable for IcX, especially for wall coverings, and is expected to be used in various packaging materials.

しかしながら、上記したポリオレフィン多孔質ゲートは
、多量り)無機充填剤を含有し、しかも微孔を多く含有
するため、強度に弱点を有し、壁装利以外の商品化が制
限されていた。し、たがって、本出願人はポリオレフィ
ン多孔質シートの一方の面に補強材をラミネートする複
合シ・−トの製造方法な既に提案している(特開昭51
−70270号)。即ち、特開昭51−70270月公
報によれば、補強材として紙類、不織布、織物、網など
例えばポリエチレ:/のブイ、ルム、組成物が用いられ
ている。
However, since the polyolefin porous gate described above contains a large amount of inorganic filler and also contains many micropores, it has a weakness in strength, and its commercialization for purposes other than wall applications has been restricted. Therefore, the present applicant has already proposed a method for manufacturing a composite sheet in which a reinforcing material is laminated on one side of a porous polyolefin sheet (Japanese Unexamined Patent Application Publication No. 1983-1993).
-70270). That is, according to Japanese Unexamined Patent Publication No. 70270/1983, paper, nonwoven fabric, woven fabric, net, etc., such as polyethylene buoys, lumes, and compositions are used as reinforcing materials.

t、2かし、て、ポリオレフィン多孔質シ・−トに補強
旧としてポリエヂレンフイ九ムプJ、どのフイルノ、状
物をラミネートした複合シー]・は、機械的強度が改良
さね(も通気セトが殆んど損われる欠点を生ずる。一方
、補強イ54として通nσ)不織布あるいはポリエチレ
ン製ネットなどの網状物を積層する場合は、通気性を損
わずに補強された複合シートを得ることが出来るが、容
易に熱圧着することが困如tなために一般に接着剤を用
いてラミネートする必要がちり工業的に煩雑である欠点
を有す4)。
Composite sheets laminated with polyolefin porous sheets and reinforced polyolefin porous sheets have improved mechanical strength (also when vented sheets are used). On the other hand, when reinforcing (nσ) non-woven fabric or net-like material such as polyethylene net is laminated, a reinforced composite sheet can be obtained without impairing air permeability. However, since it is difficult to easily bond with heat and pressure, it is generally necessary to laminate using an adhesive, which has the drawback of being complicated in terms of industrial production.4)

又、補強さオ]た複合シートは、通気へ′ト包装+4と
L−ての用途が広く、その為K +4通気度は一般に大
きい方が充填する薬剤の選択の中が広くなるため実用上
3000秒/ 1o o cc ()J−シート・−ル
式S p S試駒磯による測定)以1、特に2000秒
/100CC以下が好ましいと考えられている。−・方
、ポリオレフィン多孔り゛1シートと補強材とのラミネ
ート強IWは一般に大作い稈望ましい。すなわち−I−
述j、た包装料としてイリ・用中、ラミネート面からi
ll u、Ifが牛すると、包装14強度も低下17使
用上問題を牛ずろ。しかし2ながら熱圧着法に」、る従
来の複合シートの製法では、通気性を良好に保持しつつ
、大きなラミネート強度を得ることは、低速IK−σ)
ラミネートでは、比較的容易であったが、工業的に有利
yz高速ラミネートは困離であった。
In addition, reinforced composite sheets have a wide range of uses in air permeable packaging, and for this reason, the higher the air permeability of K+4, the wider the selection of drugs to fill, which is practical. 3000 seconds/1 o o cc (measured by J-Sheet-Le-type SpS Komaiso) or less, and particularly 2000 seconds/100 cc or less is considered preferable. - On the other hand, a strong IW laminate of a porous polyolefin sheet and a reinforcing material is generally desirable for large scale production. That is -I-
As mentioned above, as a packaging material, during use, from the laminated side.
ll u, If it is a cow, the packaging 14 strength will also be reduced 17 problems in use. However, in the conventional composite sheet manufacturing method, which uses thermocompression bonding, it is difficult to obtain high lamination strength while maintaining good air permeability.
Lamination was relatively easy, but industrially advantageous yz high-speed lamination was difficult.

本発明者等は上記問題点について検削した結果、あらか
じめボリグI′:1ピレンに特定σ)樹脂な定損添加し
これと無機充填剤を混合した組成物のソート状物を延伸
して得た多孔質ンー)に特定の補強材を熱用縮すること
(τより高速での工業的ラミネートが極めて容易で−H
つラミネート強度及び通気ゼ1に優れた複合シートを得
ることを見い出し2、本発明を提供する((至−た。
As a result of inspection regarding the above-mentioned problems, the present inventors added a specific σ) resin constant loss to Borig I':1 pyrene in advance, and stretched a sorted material of a composition in which this was mixed with an inorganic filler. Thermal shrinkage of specific reinforcing materials (industrial lamination at higher speeds than τ is extremely easy)
The present invention was based on the discovery of the ability to obtain a composite sheet with excellent lamination strength and air permeability.

即ち本発す1は4〜20重量%低密度ポリエチレン系I
f 1llljを含むポリエチレン−ポリプロピレン混
合物60〜20重示チと無機充填剤を40〜80重聞チ
混合してなる組成物のシート状物を延伸して得た多孔質
シートの少なくとも片面に、145℃以下の温度で該多
孔質シー)tc融着できる補強材を、熱圧着することを
特徴とする複合シートの製造方法である。
That is, the present invention 1 is 4 to 20% by weight of low density polyethylene I
On at least one side of a porous sheet obtained by stretching a sheet of a composition obtained by mixing 60 to 20 parts of a polyethylene-polypropylene mixture containing F 1lllj and 40 to 80 parts of an inorganic filler, This method of manufacturing a composite sheet is characterized by thermocompression bonding the reinforcing material that can be fused to the porous sheet at a temperature of .degree. C. or lower.

本発明方法による複合シートは上記特定の配合及び方法
により得られた多孔質シート上の少なくとも片面に特定
の補強利をラミネートして得るため、良好なラミネート
強度と通気性が得られる。
Since the composite sheet according to the method of the present invention is obtained by laminating a specific reinforcing material on at least one side of the porous sheet obtained by the above-mentioned specific formulation and method, good lamination strength and air permeability can be obtained.

本発明において重要なことは、多孔質シ・−トの製造で
ある。即ち本発明の複合シートは多孔質シートを基体と
するものであり、該多孔質シートは特定の樹脂混合物に
無機充填剤40〜80重幇チ、好ましくは50〜80M
(ん係を混合し、てなる組成物のシート状物を延伸する
ことによって、破断がなく月つ市川tJ通気性を有する
ものが得られる。
What is important in the present invention is the production of the porous sheet. That is, the composite sheet of the present invention has a porous sheet as a base, and the porous sheet contains a specific resin mixture containing 40 to 80 M, preferably 50 to 80 M, of an inorganic filler.
(By mixing the ingredients and stretching the sheet-like composition, it is possible to obtain a sheet that does not break and has good air permeability.)

本発明において最も重要なことは上記した特定の樹脂混
合物、即ち、低密バrポリエチレン系樹脂を、4〜20
重」a%、好ましくけ4〜10重琵チ含むポリエチレン
ーポリフロピレン混合物を川℃・ることである。
The most important thing in the present invention is that the above-mentioned specific resin mixture, that is, the low-density polyethylene resin, is
A polyethylene-polypropylene mixture containing 4 to 10% by weight, preferably 4 to 10% by weight, is prepared at 10°C.

従来、ポリプロピレン糸多孔質シートの製造方法におい
r1異った種類の樹脂を添加することは、例えば合成紙
の製造方法等で提案されているが、こf+らは擬紙化、
筆記性の白土、引裂き強度や低温物性の改良等を目的に
しており、本発明とは全く異なる。又、低密度ポリエチ
レン、非晶(’Jボリグロビレン又はエチレンーグロプ
レン共車合りal脂の様な柔軟t1で月つ軟化点がポリ
プロピし・ンより低いものをポリフロピレンに添加しく
延伸すると、樹脂と無機充填剤の界面剥離が幾分抑制さ
れ、得られる多孔質シートの通気性かや(低下するばか
りか、融点の低下により熱1i−墳時に通気性が犬11
〕に低−トするので有用lJ、複合7ノートは(0&1
いと考えられていた。
Conventionally, the addition of different types of resins in the manufacturing method of polypropylene yarn porous sheets has been proposed, for example, in the manufacturing method of synthetic paper, but these methods have been proposed to produce pseudopaper,
The purpose of this invention is to improve the writing properties of white clay, tear strength, and low-temperature physical properties, and is completely different from the present invention. In addition, when low-density polyethylene, amorphous (J polyglopylene or ethylene-gloprene copolymer resin) which is flexible and has a softening point lower than that of polypropylene is added to polypropylene and stretched, the resin The interfacial peeling of the inorganic filler and the inorganic filler is suppressed to some extent, and the air permeability of the resulting porous sheet is not only reduced, but also the air permeability is reduced to 11 during heating due to a decrease in the melting point.
) is useful because it lowers the value to
It was thought that

ところが庫発明における低密度ポリエチレン系樹脂のγ
11.自効果は、ボリプ[」ピレン中に混合されること
+(1、jる単なる融点の低下により発現するのではな
く、該樹脂がポリプロピレン中である程度島状に分散す
ることにより見かけの融点を極度に低下さすことなく補
強材との熱圧着時の接着性を高め、且つ有用な通気性を
保持するものと推定される。そのために好ましい該樹脂
の針は、上記範囲である。
However, the γ of low-density polyethylene resin in the storage invention
11. The self-effect does not occur simply by lowering the melting point of polypropylene when mixed with polypropylene, but by dispersing the resin in an island-like manner to some extent in the polypropylene, the apparent melting point is extremely increased. It is presumed that the adhesive property of the resin during thermocompression bonding with the reinforcing material is improved without deteriorating the properties, and that useful air permeability is maintained.For this purpose, the preferred resin needles are within the above range.

本発明の多孔質シートの製法は特に限定されずポリプロ
ピレンと無機充填剤及び特定樹脂を常法に従7.て混練
後カレンダー成形成いは押出成形等によってシート化す
ればよい。本発明に鏑出し得る無機充填剤は通常ゴム又
はプラスチ7り中に混合される充填剤例えば、炭酸カル
シウム、石膏、亜硫酸カルシウム、りん酸カルンウノ1
、炭酸マグネ7ウム、塩基性炭酸マグネシウム、硫酸マ
グネ7ウム、水和珪酸、無水珪酸、ソーダ灰、塩化ナト
リウム、硫酸ナトリウム、クレー、各種セメント、火山
灰、ンラス、酸化ヂタン、酸化鉄、カーボンブラ、り、
種々の金属粉、その他の無機物又は無機物を主体とする
有機物金P%塩等であり、一般に500ミクロン以下、
好中しくは0.01〜500ミクロンの範囲、特に0.
1〜50ミクロン程度の平均粒径な有する。又、低密度
ポリエチレン系樹脂も公知のものが特に制限なく使用で
きるが、一般に低密度ポリエチレンあるいはエチレンを
50重隈チ以上含有する共重合可能な他の申泊体との共
重合体であ。【非品性のものをいう。この幹、中のもの
として例えば結晶化度の低いエチレン−酢酸ビニル共重
合体、エチレン−アクリル酸エチル共重合体、エチレン
−アクリル酸アイオノマー、エチレン−プロピレン共M
@ 休、ボ’)エチレ/ワックス等がある。
The method for producing the porous sheet of the present invention is not particularly limited, and polypropylene, an inorganic filler, and a specific resin are prepared according to a conventional method.7. After kneading, the mixture may be formed into a sheet by calendering, extrusion molding, or the like. The inorganic fillers that can be used in the present invention are fillers that are usually mixed in rubber or plastic, such as calcium carbonate, gypsum, calcium sulfite, and calcium phosphate.
, magnesium carbonate, basic magnesium carbonate, magnesium sulfate, hydrated silicic acid, anhydrous silicic acid, soda ash, sodium chloride, sodium sulfate, clay, various cements, volcanic ash, lath, titanium oxide, iron oxide, carbon bra, the law of nature,
Various metal powders, other inorganic substances, or organic gold P% salts mainly composed of inorganic substances, generally 500 microns or less,
Preferably in the range of 0.01 to 500 microns, especially 0.01 to 500 microns.
It has an average particle size of about 1 to 50 microns. Also, any known low-density polyethylene resin can be used without particular limitation, but it is generally a low-density polyethylene or a copolymer with another copolymerizable material containing 50 or more ethylene. [It refers to something that is immoral. This trunk contains, for example, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid ionomer, ethylene-propylene copolymer with low crystallinity.
@ Rest, Bo') Echire/wax, etc.

ポリプロピレンに無機充填剤及び上述σ〕特定樹脂を混
合する手段は通常の混合方法が採用される。本発明にお
いては、十配り外の秤々の添加物、例えば顔料、安定剤
、滑剤、即燃剤、可塑剤等を[「11時に或いは別途混
合することは妨げないし、更に目的とする多孔質シート
の性質特に湿分或いは水分に対する親和性を向上させ、
細孔の働きをより好適にする手段どして、y?−面活性
剤を添加混合してもよい。
A conventional mixing method is used to mix polypropylene with the inorganic filler and the above-mentioned specific resin. In the present invention, additives other than those listed above, such as pigments, stabilizers, lubricants, quick-flame agents, plasticizers, etc., may be mixed at 11 o'clock or separately. properties, especially moisture or moisture affinity,
What is the best way to make the pores work better? - A surfactant may be added and mixed.

次圧上記添加剤を混合したシート状物は少なくとも1方
向に延伸することによって多孔質シートを得る。通常ポ
リプロピレンの融点以下の温度で2倍以−L延伸するこ
とによって、シー′トに細孔を形成させる。場合によっ
ては、混合された無機充填剤は、水或いは酸水溶液等、
ポリプロピレンを実質的に劣化させない抽出剤で抽出す
ること釦よってシートに形成された細孔をより大きくす
ることもできる。この場合には混合する無機充填剤が、
水或いは酸水溶液その他の抽出溶剤に溶解し得るもσ)
で1.、 l−Jればブエらない。かかる無機充填剤と
して使用される可溶性物質と溶剤の組合せは、肖業者が
容易に選定し得るものである。
Next Pressure A porous sheet is obtained by stretching the sheet material mixed with the above additives in at least one direction. Usually, pores are formed in the sheet by stretching the sheet by at least 2 times -L at a temperature below the melting point of polypropylene. In some cases, the mixed inorganic filler may be mixed with water or an aqueous acid solution, etc.
The pores formed in the sheet can also be made larger by extracting the polypropylene with an extractant that does not substantially degrade the polypropylene. In this case, the inorganic filler to be mixed is
σ) Can be dissolved in water, acid aqueous solution, or other extraction solvents
So 1. , If you use l-J, there will be no bloating. Combinations of soluble substances and solvents used as such inorganic fillers can be easily selected by those skilled in the art.

更に水和可能な無機充填材、例えば半水石膏、セメント
、タリンカ、生石灰、アルミナ、シリカ、ボリア、チタ
ニア、ジルコニア、ゼオライト、りん酸水素マグネシウ
ム、亜りん酸マグネシウム、塩基性炭酸マグネシウム、
求償化バリウム等、化学吸着、結晶水等の結合水ファン
デルワールズカ圧よる結合水を有することが可能な無機
充填剤を混合し、延伸した抜水に浸漬するか水蒸気処理
することによって、水和物とすることに」す、シート自
体1−((、態化すると同時に一層親水性を((J与す
ることもできる。
Furthermore, hydratable inorganic fillers such as gypsum hemihydrate, cement, tarinka, quicklime, alumina, silica, boria, titania, zirconia, zeolites, magnesium hydrogen phosphate, magnesium phosphite, basic magnesium carbonate,
Hydration is achieved by mixing an inorganic filler capable of containing bound water such as chemical adsorption, bound water such as water of crystallization, van der Waals pressure, such as depleted barium, and immersing it in drawn water or treating it with steam. In order to make it into a material, the sheet itself can also be made more hydrophilic at the same time.

上記方法によって得られたシートは少くとも片面に補強
材を1層又は複数層熱圧着する。該補強材としては14
5℃以下の温度で該多孔質7ノートに融着できるもので
あれば特に制限されない。かかる補強材としての要件を
満さないものは良好な通気性を有する複合シートが得ら
れない。即ち、145℃以上の温度で該多孔質シートに
融着できる補強材を用いる場合には、熱圧着時により)
IV、温高圧で行う必要が生じ、多孔質シートの収縮ま
たは軟化が著しいために、通気性の良好な複合シートを
得ることが困難である。
The sheet obtained by the above method is thermocompressed with one or more layers of reinforcing material on at least one side. The reinforcing material is 14
There is no particular restriction on the material as long as it can be fused to the porous 7-note at a temperature of 5° C. or lower. If the reinforcing material does not meet these requirements, a composite sheet with good air permeability cannot be obtained. In other words, when using a reinforcing material that can be fused to the porous sheet at a temperature of 145°C or higher,
IV. It is difficult to obtain a composite sheet with good air permeability because it is necessary to perform the process at high temperature and pressure, and the porous sheet shrinks or softens significantly.

かかる本発明に用いられる補強材としては、上記要P1
を満たすものであわばよい。一般に偏平な孔開きされた
フィルム状シート割布又は不織布が用いられ特に樹脂フ
ィルムを延伸したスゲリフトヤーン(フラットヤーン)
より作製された割布、乾式、湿式、スパンボンド法によ
る不織布あるいは孔開きプラスヂククフイルノ・等の偏
平な孔開きフィルム状シートが好適に用いられる。なお
、フィルム樹脂としては、一般にポリエチレン、ポリプ
ロピレン、などのポリオレノイン、ポリビニルアルコー
ル、ポリエチレンテレツタレート、ポリアミド、ポリ塩
化ビニル、あるいはそれらの共重合体、i”r4合1t
「どが使用される。
As the reinforcing material used in the present invention, the above-mentioned essential P1
Anything that satisfies the requirements is fine. Suge lift yarn (flat yarn) is generally made of flat perforated film-like sheet cloth or non-woven fabric, and is particularly made by stretching a resin film.
A flat perforated film-like sheet such as a split cloth made by a dry method, a wet method, a nonwoven fabric made by a spunbond method, or a perforated film sheet such as a perforated plastic film is preferably used. The film resin is generally polyolenoin such as polyethylene, polypropylene, polyvinyl alcohol, polyethylene terethalate, polyamide, polyvinyl chloride, or a copolymer thereof, i"r4 polymer, etc.
“What is used?

次に、本発明における熱圧着の方法は上記多孔質シート
と補強材を接合し、て行なえばよく、特に制限されない
。一般には、紋付はロール間において多孔質シートと補
強材とを、所定の温度で押圧して熱圧着する方法が採用
される。この際の温度、圧力は所望の通気性となるよう
に調整すればよく、一般には145℃以−)の温度で線
圧20〜30に2で行なわれる。この際のラミネー・を
速度けI T] 〜50 m /mi、n  となる。
Next, the thermocompression bonding method in the present invention may be carried out by joining the porous sheet and the reinforcing material, and is not particularly limited. Generally, a method is adopted for cresting, in which a porous sheet and a reinforcing material are pressed between rolls at a predetermined temperature and bonded by thermocompression. The temperature and pressure at this time may be adjusted so as to provide the desired air permeability, and it is generally carried out at a temperature of 145 DEG C. or higher and a linear pressure of 20 to 30.degree. The lamination speed at this time is ~50 m/mi,n.

以−Lの説明から明らかな如く、本発明は多孔質シーi
・圧補強拐を容易な方法でラミネートさせることによっ
て、通気性と補強性を有する複合シートを得ることが出
来る。したがって、本発明に」1,1てmられる捨金シ
ートは、広範な用途、例えば脱酸素剤、鮮度保持剤、乾
燥剤、香料、防錆剤などの包装料、あるいは擬似皮革、
内力、バ、シート、分1iiIj膜、滅菌袋などに利用
されろ。
As is clear from the explanation below, the present invention
・By laminating pressure reinforced sheets in a simple manner, a composite sheet with breathability and reinforcing properties can be obtained. Therefore, the sacrificial sheet included in the present invention can be used in a wide range of applications, such as packaging materials for oxygen absorbers, freshness preservation agents, desiccants, fragrances, rust preventives, etc., or as pseudo-leather,
It can be used for internal forces, sheets, membranes, sterilization bags, etc.

尚、本発明における通気度、ラミネート強度は貝下の方
法により測定した。
Note that the air permeability and laminate strength in the present invention were measured by Kaishita's method.

通気度の測定はガーレイ−ヒル1m PSv、、締機(
東洋精機製作所)を使用1−2だ0本機は一イ方インチ
の面積のとこ7)を567 gr  の荷重をかけた空
気が100CC通過するのに要する時間を測定する。
The air permeability was measured using a Gurley-Hill 1m PSv, tightening machine (
Toyo Seiki Seisakusho) is used to measure the time required for 100 cc of air to pass through an area of 1 inch (7) with a load of 567 gr.

又、ラミネート強度はラミネートシートを15 wm 
ljlに切りとり、多孔質シートと補強材シートとの間
の接着強度を、引張り試験機(東洋精機製作所)を用い
て室温下200 mm /m1.n  のスピードで1
80°剥離し測定した。
Also, the laminate strength is 15 wm for the laminate sheet.
The adhesive strength between the porous sheet and the reinforcing material sheet was measured at 200 mm/m1 at room temperature using a tensile tester (Toyo Seiki Seisakusho). 1 at speed n
It was peeled off at 80° and measured.

以下本発明を具体的に、説明するための実施例を示すが
本発明は以下の実施例に特に限定されるものではない。
Examples will be shown below to specifically explain the present invention, but the present invention is not particularly limited to the following examples.

実施例1゜ 第1表の添加樹脂欄に示す如く0〜30重阻チの範囲で
各々低密度ポリエチレン系樹脂を含むポリエチレンーポ
リプロピレン混合物に重質炭酸カルシウム60重M%を
混合し、230℃で2軸押用機でベレ、)にし、押出機
で260℃の樹脂温度下に押出し、シート状物を得た。
Example 1 As shown in the Added Resin column of Table 1, 60% by weight of heavy calcium carbonate was mixed with a polyethylene-polypropylene mixture containing low-density polyethylene resins in the range of 0 to 30% by weight, and the mixture was heated at 230°C. The mixture was flattened using a twin-screw extruder, and extruded using an extruder at a resin temperature of 260°C to obtain a sheet-like product.

その後肢ノートをさらに120℃の温度で2軸延伸し縦
2.2×横1.9(面fi4.18)倍延伸された約1
00ミクロンの多孔質シートを得た。
The hindlimb note was further biaxially stretched at a temperature of 120°C, and stretched 2.2 times vertically and 1.9 times horizontally (area fi 4.18).
A porous sheet of 0.00 microns was obtained.

イ0られたシートにポリエチレン製の割布(1石合樹製
品;SS)と53μの孔開きポリエチレンフィルム(孔
面積約10チ)を割布を中にして3層ラミネートして、
イUられたフィルムのラミネート強度と通気度を測定;
−だ。
A 3-layer laminate of polyethylene cloth (one-stone synthetic wood product; SS) and a 53 μ perforated polyethylene film (pore area of approximately 10 inches) is placed on the woven sheet, with the cloth inside.
Measuring the lamination strength and air permeability of the rolled film;
-It is.

ラミネートは、140℃の金属ロールと80℃の7リコ
ンゴムロールの間にはさんで線圧約25に?で20 r
rL /min  の速度で熱圧着した。
The laminate is sandwiched between a metal roll at 140℃ and a 7-recon rubber roll at 80℃ to a linear pressure of about 25? 20 r
Thermocompression bonding was carried out at a speed of rL/min.

得られた結果を第1表に示した。尚、f’&x 8 +
゛j、ラミネート速度7 m /min  で行った結
果を示す。
The results obtained are shown in Table 1. Furthermore, f'&x 8 +
゛j shows the results carried out at a lamination speed of 7 m/min.

陥1、隘5、隘8、集9は比較例である。Sections 1, 5, 8, and 9 are comparative examples.

第1表から4〜20重−騎チ低密度列ζリエブーレンを
含有した時、良好なラミネート強度が発現し、通気性も
大中な低下のないことが明らかである。エチレン−酢酸
ビニル共庫2合体、ニゲ=レンーゾロビレン共重合体も
同様な効果を有すことがN6.7から明らかである。
From Table 1, it is clear that when 4 to 20 low-density rows of ζ Liebuuren are contained, good laminate strength is exhibited and there is no significant decrease in air permeability. It is clear from N6.7 that the ethylene-vinyl acetate copolymer and the ethylene-vinyl acetate copolymer have similar effects.

第  1  表 (住友化学ネ1製) エチレン−酢酸ビニル共重合体;商品名 ウルトラセン
llX−633(東洋曹達社製) エチレンープ[Jビl/ン共重合I11脂:商品名 タ
フマーJ、’ −0280(三井石油化学社製) 高密度ポリエチレン:商品名 ノ・イゼ、クス21[]
0.T(三井石油化学社製) 実施例2゜ 実施例1と同じ方法で作った多孔質/−トに低密度ポリ
エチレンで表面被覆されたポリプロピレン繊維(チッソ
(413xsセンイ)から成る20g/がの不織布を実
施例1と同じにラミネートシた。
Table 1 Ethylene-vinyl acetate copolymer (manufactured by Sumitomo Chemical Co., Ltd.); trade name Ultracene II 0280 (manufactured by Mitsui Petrochemical Co., Ltd.) High-density polyethylene: Product name No Ize, Kusu 21 []
0. T (manufactured by Mitsui Petrochemical Co., Ltd.) Example 2゜20g/piece of nonwoven fabric made of porous polypropylene fibers (Chisso (413xs fiber) made by the same method as Example 1 and surface-coated with low-density polyethylene) was laminated in the same manner as in Example 1.

通気度−ラミネート強度を測定した。結果を第2表に示
し2だ。
Air permeability-laminate strength was measured. The results are shown in Table 2 and are 2.

N4は比較例である。N4 is a comparative example.

特許出願人 徳山曹達株式会社patent applicant Tokuyama Soda Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 1)4〜20重量%低密度ポリエチレン系樹脂を含むポ
リエチレンーボリプロビレン混合物60〜20重闇弥と
無機充填剤を40〜80重量%混合してなる組成物のシ
ート状物を延伸して得た多孔質シートの少くとも片面に
、145℃以上の温度で該多什l′↓シートに融着でき
る補強材を熱圧着イることを特徴とする複合ノートの製
造方法。
1) Stretching a sheet of a composition prepared by mixing 40 to 20% by weight of a polyethylene-polypropylene mixture containing 4 to 20% by weight of a low-density polyethylene resin and 40 to 80% by weight of an inorganic filler. A method for producing a composite notebook, characterized in that a reinforcing material that can be fused to the porous sheet at a temperature of 145° C. or higher is thermocompression bonded to at least one side of the obtained porous sheet.
JP16510282A 1982-09-24 1982-09-24 Manufacture of composite sheet Granted JPS5954558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16510282A JPS5954558A (en) 1982-09-24 1982-09-24 Manufacture of composite sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16510282A JPS5954558A (en) 1982-09-24 1982-09-24 Manufacture of composite sheet

Publications (2)

Publication Number Publication Date
JPS5954558A true JPS5954558A (en) 1984-03-29
JPH0148141B2 JPH0148141B2 (en) 1989-10-18

Family

ID=15805926

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16510282A Granted JPS5954558A (en) 1982-09-24 1982-09-24 Manufacture of composite sheet

Country Status (1)

Country Link
JP (1) JPS5954558A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243731U (en) * 1985-09-03 1987-03-16
WO2017171036A1 (en) * 2016-03-31 2017-10-05 Jxエネルギー株式会社 Sheet material and alcohol transpiration agent packaging material using this sheet material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243731U (en) * 1985-09-03 1987-03-16
WO2017171036A1 (en) * 2016-03-31 2017-10-05 Jxエネルギー株式会社 Sheet material and alcohol transpiration agent packaging material using this sheet material
JP2017177713A (en) * 2016-03-31 2017-10-05 Jxtgエネルギー株式会社 Sheet material and packaging material for alcohol transpiration agent using sheet material

Also Published As

Publication number Publication date
JPH0148141B2 (en) 1989-10-18

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