JPH0349922A - Manufacture of partially breathing composite sheet - Google Patents
Manufacture of partially breathing composite sheetInfo
- Publication number
- JPH0349922A JPH0349922A JP1183797A JP18379789A JPH0349922A JP H0349922 A JPH0349922 A JP H0349922A JP 1183797 A JP1183797 A JP 1183797A JP 18379789 A JP18379789 A JP 18379789A JP H0349922 A JPH0349922 A JP H0349922A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- composite sheet
- porous
- thermoplastic resin
- resin film
- 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
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 230000029058 respiratory gaseous exchange Effects 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract description 33
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 26
- 238000001125 extrusion Methods 0.000 claims abstract description 13
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000003475 lamination Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 31
- 238000010030 laminating Methods 0.000 abstract description 6
- 229920001971 elastomer Polymers 0.000 abstract description 5
- 239000005060 rubber Substances 0.000 abstract description 4
- 239000004744 fabric Substances 0.000 abstract 1
- 230000035699 permeability Effects 0.000 description 14
- 239000002184 metal Substances 0.000 description 7
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- -1 etc. Substances 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 101100506408 Arabidopsis thaliana HDA6 gene Proteins 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000012461 cellulose resin Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000005007 epoxy-phenolic resin Substances 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000009824 pressure lamination Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は不織布等の多孔性基材と熱可塑性樹脂フィルム
とからなる部分通気性複合シートの製造方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for manufacturing a partially breathable composite sheet comprising a porous base material such as a nonwoven fabric and a thermoplastic resin film.
［従来の技術］
近年、多孔性基材と透水性、透湿性、耐水性を調整する
機能を有する有孔フィルムを複合した通気性複合シート
が広く利用されるように成ってきている。代表的な例と
して使い捨ての紙おむつ。[Prior Art] In recent years, breathable composite sheets made by combining a porous base material and a perforated film having the function of adjusting water permeability, moisture permeability, and water resistance have come to be widely used. A typical example is disposable diapers.
生理用品、乾燥剤、脱酸素剤の包材、フィルター結露防
止シートが挙げられる。これらの通気性複合シートの製
造方法は２種類の方法に大別される。Examples include packaging materials for sanitary products, desiccants, oxygen absorbers, and filter anti-condensation sheets. Methods for manufacturing these breathable composite sheets can be roughly divided into two types.
（１）無機系、有機系フィラーをブレンドしたフィルム
を延伸、あるいはフィラーを除去する等の方法であらか
じめ有孔化された、熱可塑性樹脂フィルムと多孔性基材
とを接合する方法。(1) A method of joining a porous base material with a thermoplastic resin film that has been made porous in advance by stretching a film containing a blend of inorganic and organic fillers or removing the filler.
（２）熱可塑性樹脂フィルムと多孔性基材とを接合しそ
の後コロナ放電あるいはニードルパンチ等の方法で熱可
塑性樹脂フィルムを有孔化する方法である。(2) A method in which a thermoplastic resin film and a porous base material are bonded, and then the thermoplastic resin film is made porous by a method such as corona discharge or needle punching.
いずれの製造方法も熱可塑性樹脂フィルムの有孔化工程
及びそれを多孔性基材に接合する接合工程の２工程に分
かれている。その為に品質管理上。Both manufacturing methods are divided into two steps: a step of forming pores in the thermoplastic resin film and a bonding step of bonding it to a porous base material. For that reason, quality control.
工程管理上不利であるばかりでなく有孔化装置。Not only is it disadvantageous in terms of process control, but also the perforation equipment.
接合装置の２種類の装置が必要であるため設備投資が大
きく、また製品のコストダウンが難しい欠点がある。Since two types of bonding devices are required, there is a drawback that the equipment investment is large and it is difficult to reduce the cost of the product.
し発明が解決しようとする課８］
本発明の目的は従来の方法では達成されなかった、熱可
塑性樹脂フィルムの有孔化と不織布等の多孔性基材との
接合を同時に行い、なお得られた通気性複合シートの同
一面上に通気性の機能を有する領域と有しない領域を合
せ持つ部分通気性複合シートの製造方法を提供するもの
である。Issue 8 to be Solved by the Invention] The object of the present invention is to simultaneously make a thermoplastic resin film porous and bond it to a porous base material such as a nonwoven fabric, which has not been achieved by conventional methods. The present invention provides a method for manufacturing a partially breathable composite sheet having both a region having a breathable function and a region not having a breathable function on the same side of the breathable composite sheet.
以上の様な現状に鑑み本発明者らは鋭意、検討を重ねた
結果、多孔性基材に熱可塑性樹脂を押出ラミネートする
工程において、溶励樹脂フィルムが直接接触するロール
の部分表面が特定の熱伝導率および硬度を持つ材質から
なるロールを使用することにより特定の材質からなるロ
ール部分表面と接触した部分の熱可塑性樹脂フィルムが
有孔化することを見出したことに基づくものである。す
なわち本発明は熱可塑性樹脂と多孔性基材を用いて押出
ラミネート法によって複合シートを製造する方法におい
て溶融樹脂が直接接触するロールの表面積の０．０５％
〜９９．９５％が熱伝導率として０．０３ｋｃａｌ／ｍ
◆ｈ−”Ｃから５ｋｃａｌ／ｍ−ｈ会℃の範囲にあり、
ＪＩＳ Ｋ７２１５に準じて測定した硬さがＨＤＡ６
０以上である材質から成るロールを用いることを特徴と
する部分通気性複合シートの製造方法に関するものであ
る。In view of the above-mentioned current situation, the inventors of the present invention have made extensive studies and found that in the process of extrusion laminating thermoplastic resin onto a porous substrate, the partial surface of the roll that directly contacts the welding resin film has a specific This is based on the discovery that by using a roll made of a material with high thermal conductivity and hardness, the portion of the thermoplastic resin film that comes into contact with the surface of the roll made of a specific material becomes porous. That is, in the method of manufacturing a composite sheet by extrusion lamination using a thermoplastic resin and a porous base material, the present invention provides 0.05% of the surface area of the roll that is in direct contact with the molten resin.
~99.95% is 0.03 kcal/m as thermal conductivity
◆H-”C to 5kcal/m-h ℃ range,
Hardness measured according to JIS K7215 is HDA6
The present invention relates to a method for manufacturing a partially breathable composite sheet, characterized by using a roll made of a material having a polyurethane gas of 0 or more.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
第１図は本発明にかかわる押出ラミネート装置の概略図
である。Ｔダイス■から押出された溶融熱可塑性樹脂フ
ィルム■は多孔性基材■とゴムロール■とロール部分表
面が特定材質から成る冷却ロール■で圧着、接合、有孔
化されて通気性複合シート■が得られる。FIG. 1 is a schematic diagram of an extrusion laminating apparatus according to the present invention. The molten thermoplastic resin film ■ extruded from the T-die ■ is crimped, bonded, and made perforated by a porous base material ■, a rubber roll ■, and a cooling roll ■ whose surface is made of a specific material to form a breathable composite sheet ■. can get.
第２図は本発明にかかわる冷却ロールの一表面態様を示
す模式図である。すなわち金属製の冷却ロール本体の表
面に熱伝導率は０．０３ｋｃａｌ／ｍφｈ・℃から５
ｋ ｃ ａ ｌ ／ ｍ ｅｈ ＊ ”Ｃの範囲にあり
ＪＩＳ Ｋ７２１５に準じて測定した硬さがＨＤＡ６
０以上の材質からなるロール部分表面Ａ■（以下ロール
部分表面Ａとして記述する）を設けた冷却ロールである
。FIG. 2 is a schematic diagram showing one surface aspect of the cooling roll according to the present invention. In other words, the thermal conductivity of the surface of the metal cooling roll body is from 0.03 kcal/mφh・℃ to 5
k cal / m eh * “Hardness is in the range of C and measured according to JIS K7215 is HDA6
This is a cooling roll provided with a roll portion surface A (hereinafter referred to as roll portion surface A) made of a material of 0 or more.
かかる冷却ロールを用いて多孔性基材に熱可塑性樹脂を
押出しラミネートし得られた部分通気性複合シートの模
式平面図を第３図に示す。圧着ラミネートの際、ロール
部分表面Ａ■と接触したシート部分表面Ａ■は有孔化し
通気性透湿性の機能を有する。一方シート部分表面Ａ■
以外のシート表面は有孔化せず、通気性、透湿性の機能
を有しない。FIG. 3 shows a schematic plan view of a partially breathable composite sheet obtained by extrusion laminating a thermoplastic resin onto a porous substrate using such a cooling roll. At the time of pressure lamination, the sheet part surface A2 which is in contact with the roll part surface A2 is made porous and has an air permeable and moisture permeable function. On the other hand, sheet part surface A■
The other sheet surfaces are not perforated and have no air permeability or moisture permeability functions.
この様なロール部分表面Ａを設けた冷却ロールは工業的
にはまず、金属製冷却ロール本体のロール部分表面Ａの
表面を凹状に彫刻し、塗布、注型加工、溶射加工、ライ
ニング加工粉末塗装等の方法で最終仕上り状態で熱伝導
率は０．０３ｋｃａ１／ｍ＃ｈ拳℃〜５ｋｃａｌ／ｍ・
ｈ・℃の範囲にあり、ＪＩＳ Ｋ７２１５に準じて測
定した硬さがＨＤＡ６０以上の材質をうめ込みその後ロ
ール表面全体を研磨することで得られる。また、ロール
部分表面Ａに相当する形状のフィルムを冷却ロール本体
の表面に接着剤等を用い強固に貼布する方法でも可能で
ある。Industrially, a cooling roll with such a roll surface A is manufactured by first carving the roll surface A of the metal cooling roll body into a concave shape, coating, casting, thermal spraying, lining and powder coating. The thermal conductivity in the final finished state is 0.03kcal/m#h℃~5kcal/m・
It is obtained by injecting a material with a hardness of HDA 60 or higher, which is in the range of h.degree. C. according to JIS K7215, and then polishing the entire surface of the roll. Alternatively, it is also possible to firmly adhere a film having a shape corresponding to the roll portion surface A to the surface of the cooling roll body using an adhesive or the like.
ロール部分表面Ａの材質は仕上り状態で熱伝導率は０．
０３ｋｃａｌ／ｍ−ｈ・”ｃ 〜５ｋｃａｌ／ｍ−ｈ・
℃好ましくはＯ，１ｋｃａｌ／ｍ−ｈ・℃〜１ｋｃａ１
／ｍ−ｈ・℃であることが必要である。熱伝導率が５ｋ
ｃａｌ／ｍ−ｈ・℃を越えると熱可塑性樹脂フィルムの
有効化が起こりにくく、０．０３ｋｃａｌ／ｍ−ｈ・℃
未満では冷却能力が悪く、生産速度が極端に低くなる。The material of the surface A of the roll portion is finished and has a thermal conductivity of 0.
03kcal/m-h・”c ~5kcal/m-h・
℃ Preferably O, 1kcal/m-h・℃~1kcal
/m−h・℃. Thermal conductivity is 5k
If the temperature exceeds 0.03kcal/m-h・℃, it is difficult for the thermoplastic resin film to become effective.
If it is less than that, the cooling capacity will be poor and the production rate will be extremely low.
またロール表面の材質の硬さはＪＩＳ Ｋ７２１５に
準じて測定した硬さがＨＤＡ６０以上好ましくはＨＤＡ
８０以上である。ＨＤＡ６０未満では圧着が充分行われ
ず、有孔化しにくくなる。ロール部分表面Ａは単一の素
材から成る単層構造でも単一の素材からなる多層積層構
造でも良い。また複数の素材から成る多層積層構造でも
良い。更にまた複数の素材からなる混合物で作製される
単層・多層構造でも良い。かかるロール部分表面Ａの場
合、熱伝導率及び硬さは見掛上の平均値、あるいは実測
値として理解されるべきものである。The hardness of the roll surface material is preferably HDA 60 or higher when measured according to JIS K7215.
It is 80 or more. If the HDA is less than 60, crimping will not be performed sufficiently and it will be difficult to form pores. The roll portion surface A may have a single layer structure made of a single material or a multilayer laminated structure made of a single material. Alternatively, a multilayer laminated structure made of a plurality of materials may be used. Furthermore, a single layer or multilayer structure made of a mixture of a plurality of materials may be used. In the case of such roll partial surface A, the thermal conductivity and hardness should be understood as apparent average values or actually measured values.
冷却ロール本体の彫刻される凹部の深さは冷却ロール本
体の使用によっても異なるが５μ以上。The depth of the engraved recesses on the cooling roll body varies depending on the use of the cooling roll body, but is 5μ or more.
５０ｍｍ以下が望ましい５μ未満では傷等の原因でロー
ル部分表面Ａの材質が脱落し冷却ロール本体の表面が露
出しやす＜、５０ｍｍを越えるとロール部分表面Ａの材
質が経時的に蓄熱しロールリリース性が悪くなる為であ
る。If the thickness is less than 5μ, preferably less than 50 mm, the material of the roll surface A will easily fall off due to scratches, etc., and the surface of the cooling roll body will be exposed. If it exceeds 50 mm, the material of the roll surface A will accumulate heat over time and release the roll. This is because sex becomes worse.
一方、金属ロール本体にロール部分表面Ａに相当する形
状のフィルム、あるいはシートを貼布する場合、フィル
ムの厚みは５μ以上、５００μ以下が好ましい。５μ未
満では傷等の原因で脱落し冷却ロール本体の表面が露出
しやす＜、５００μを越えるとラミネート厚みによって
も異なるがフィルムを貼布しない部分の接着が著しく悪
くなる為である。On the other hand, when a film or sheet having a shape corresponding to the roll portion surface A is attached to the metal roll body, the thickness of the film is preferably 5 μm or more and 500 μm or less. If it is less than 5 μm, it will easily fall off due to scratches etc. and the surface of the cooling roll body will be exposed. If it exceeds 500 μm, the adhesion of the parts to which the film is not applied will be significantly poor, although this will vary depending on the thickness of the laminate.
ロール部分表面Ａに用いられる具体的な素材としてはネ
オプレン、シリコーン、ポリウレタン等のエラストマー
エポキシ樹脂、フェノール樹脂。Specific materials used for the roll surface A include elastomers such as neoprene, silicone, and polyurethane, epoxy resins, and phenolic resins.
等の熱可塑性樹脂、熱硬化性樹脂及びゴム、セルロース
系樹脂、けい素樹脂、ふっ素樹脂等のフェス、エマルジ
ョン、及び紙、セラミックスガラス繊維マット等である
。ロール部分表面Ａに用いられる具体的な素材は押出ラ
ミネートされる熱可塑性樹脂の種類、ロールリリース性
等の加工に伴う諸因子を考慮し適宜選択することができ
る。These include thermoplastic resins, thermosetting resins, rubber, cellulose resins, silicone resins, fluorine resins, etc., emulsions, paper, ceramics, glass fiber mats, etc. The specific material used for the surface A of the roll portion can be appropriately selected in consideration of various factors involved in processing such as the type of thermoplastic resin to be extrusion laminated and roll release properties.
かかるロール部分、ロール部分表面Ａの形状。The shape of the roll portion and the roll portion surface A.
及び全ロール表面積に対する割合は目的、用途に応じて
適宜定める事ができる。すなわち形状としては円、四角
形、三角形、楕円等の定義される形状でも、定義されな
い任意の形状でも可能である。The ratio to the total roll surface area can be determined as appropriate depending on the purpose and use. In other words, the shape may be a defined shape such as a circle, square, triangle, or ellipse, or any undefined shape.
しかし形状の最も狭い幅は１ｍｍ以上、好ましくは３ｍ
ｍ以上である。１ｍｍ未満では有孔化しにくくなる為で
ある。However, the narrowest width of the shape is 1 mm or more, preferably 3 m.
m or more. This is because if the thickness is less than 1 mm, it becomes difficult to form pores.
限定されるものではないが、ロール部分表面Ａの形状の
例をロール表面の展開図として図４から図１０に示した
。またロール部分表面積に対する割合は０．０５％〜９
９．９５％の範囲で任意に定めることが可能である。Although not limited to this, examples of the shape of the roll portion surface A are shown in FIGS. 4 to 10 as developed views of the roll surface. In addition, the ratio to the surface area of the roll part is 0.05% to 9
It can be set arbitrarily within the range of 9.95%.
本発明で用いられる多孔性基材としてはポリエステル、
高密度ポリエチレン、ポリプロピレン。Porous base materials used in the present invention include polyester,
High density polyethylene, polypropylene.
ナイロン、レーヨン等の合成繊維及び天然繊維からなる
不織布、織布および混抄不織布、薄葉紙等の表面状態の
祖な紙、さらにガラス繊維、ロックウール等からなる無
機系不織布、織布状基材を挙げることができる。Examples include nonwoven fabrics, woven fabrics, and mixed nonwoven fabrics made of synthetic fibers and natural fibers such as nylon and rayon, papers with basic surface conditions such as thin paper, as well as inorganic nonwoven fabrics and woven fabric substrates made of glass fibers, rock wool, etc. be able to.
これらの多孔性基材の空隙率は９７％以下好ましくは９
０％以下である。９７％を越えると押出ラミネート加工
時充分圧着されず、熱可塑性樹脂フィルムの有孔化が充
分行われない場合がある。The porosity of these porous substrates is 97% or less, preferably 9
It is 0% or less. If it exceeds 97%, sufficient pressure bonding may not be achieved during extrusion lamination, and the thermoplastic resin film may not be sufficiently porous.
また多孔性基材の表面の粗さはＪＩＳ ＢＯ６０１の
表面粗さの規格の中心線平均粗さ（Ｒの値）が１μＲａ
以上好ましくは３μＲａ以上である。In addition, the surface roughness of the porous substrate has a center line average roughness (R value) of 1 μRa according to the surface roughness standard of JIS BO601.
The above is preferably 3 μRa or more.
１μＲａ未満では熱可塑性樹脂フィルムの有孔化が充分
に行われない。If it is less than 1 μRa, the thermoplastic resin film will not be sufficiently porous.
以上の様な多孔性基材を用いて押出ラミネートによって
通気性フィルムを製造するが、多孔性基材の種類によっ
てはコロナ放電、アンカーコート等の前処理をし熱可塑
性樹脂と多孔性基材の密若強度を充分に確保しても本発
明の効果には何ら影響はしない。A breathable film is manufactured by extrusion lamination using the above porous base materials. Even if sufficient density and strength are ensured, the effects of the present invention will not be affected in any way.
熱可塑性樹脂としては低密度ポリエチレン、高密度ポリ
エチレン、ポリプロピレン、エチレン−酢ビ共重合樹脂
、ポリブテン−１樹脂等のポリオレフィン系樹脂、アイ
オノマー樹脂、ポリアマイド樹脂等が挙げられる。樹脂
温度は多孔性基材と熱可塑性樹脂の接着性を考慮し適宜
適正温度に定められる。ラミネート厚みは使用される多
孔性基材の表面粗度に応じて定められるが１ｍｍを越え
ると圧着が充分行われず有孔化しなくなる場合がある。Examples of the thermoplastic resin include polyolefin resins such as low density polyethylene, high density polyethylene, polypropylene, ethylene-vinyl acetate copolymer resin, and polybutene-1 resin, ionomer resins, and polyamide resins. The resin temperature is appropriately determined in consideration of the adhesiveness between the porous base material and the thermoplastic resin. The thickness of the laminate is determined depending on the surface roughness of the porous base material used, but if it exceeds 1 mm, the laminate may not be sufficiently crimped and may not be porous.
ラミネート厚みの下限は熱可塑性樹脂のドローダウン性
等の加工性で定まる。ラインスピードは装置の大きさ等
で定まるが速い方が有孔化しやすい。冷却ロールの冷却
水の温度は高い方が有孔化しやすいが７０℃を越えると
熱可塑性樹脂の種類によってはロールリリース性が悪く
なり、極端な場合は被覆冷却ロールに巻き付き製造不能
となる場合がある。圧着のプレスロール線圧は高い方が
好ましくゝＯしかし４５ｋｇ／ｃｍを越えると装置上、
耐久性の点で問題が生じる場合がある＠限定されるもの
ではないが、本発明によって得られた部分通気性複合シ
ートの具体的な応用例として芳香剤の包装材料が挙げら
れる。芳香剤の種類は多く芳香拡散の程度も各々異なる
。この様な芳香剤の芳香拡散の量を調整する目的で孔径
、及び孔数を変え通気量の異なる種々の通気性シートを
用意して芳香剤を包装しているのが実状である。The lower limit of the laminate thickness is determined by the drawdown properties and other processability of the thermoplastic resin. The line speed is determined by the size of the equipment, etc., but the faster the line speed, the easier it is to form holes. The higher the temperature of the cooling water on the cooling roll, the easier it is to form pores, but if it exceeds 70°C, the roll release properties may deteriorate depending on the type of thermoplastic resin, and in extreme cases, it may wrap around the coated cooling roll, making production impossible. be. The higher the linear pressure of the press roll for crimping, the better. However, if it exceeds 45 kg/cm,
Problems may arise in terms of durability.@A specific example of the application of the partially breathable composite sheet obtained by the present invention includes, but is not limited to, packaging materials for fragrances. There are many types of fragrances, and each has a different degree of aroma diffusion. In order to adjust the amount of aroma diffusion of such an aromatic agent, the actual situation is to package the aromatic agent by preparing various air-permeable sheets with different pore sizes and numbers of holes and different air permeability.
本発明による製造方法によればロール部分表面Ａの形状
及びロール全表面積の割合を変えることのみで通気量の
ことなる種々の部分通気性複合シートを得ることができ
る。According to the manufacturing method of the present invention, various partially breathable composite sheets having different air permeability can be obtained by simply changing the shape of the roll surface A and the ratio of the total surface area of the roll.
［実施例］ 以下本発明を実施例を用いて詳述する。[Example] The present invention will be explained in detail below using examples.
実施例１
鋼鉄製の冷却ロール本体外径１９１ ｍｍ、ロール１ｆ
ｆｌ積３５０ｍｍ２）に第７図のロール面の展開図に示
すような格子模様ロール部分表面Ａに相当する部分を凹
状に機械彫刻した。凹部の深さは１００μである。格子
間隔は１０ｍｍでロール部分表面Ａの全表面積に対する
割合は５０％である。Example 1 Steel cooling roll main body outer diameter 191 mm, roll 1f
A portion corresponding to the lattice pattern roll portion surface A as shown in the developed view of the roll surface in FIG. 7 was mechanically engraved into a concave shape on a fl area of 350 mm 2 ). The depth of the recess is 100μ. The grid spacing was 10 mm, and the ratio of the roll portion surface A to the total surface area was 50%.
かかる彫刻された冷却ロール本体にふっ素樹脂を彫刻さ
れた凹部が完全に埋まるように粉末塗装した。その後ロ
ール表面が平滑になるように研磨し、ロール部分表面Ａ
を設けた。ロール表面部分Ａの熱伝導率は０．２８ｋｃ
ａ１／ｍ−ｈ・℃でＪＩＳ ７２１５に準じて測定し
た硬さはＨＤＡ９５である。ロール部分表面人以外のロ
ール表面の鋼鉄の熱伝導率は４５ｋｃａｌ／ｍ−ｈ＊”
ｃである。硬さはＨＤＡｌｏｏである。かかる冷却ロー
ルを２５ｍｍφ押出機を持つ押出ラミネート装置（株式
会社 ブラコー製 型式ＴＰ−３５０）に取り付け、ポ
リエステル不織布（旭化成株式会社 Ｅ−５０７０，坪
量７０ｇ／ゴ、空隙率７０％１表面粗さ６μＲａ）を原
反とし下記の加工条件で低密度ポリエチレン（東ソー株
式会社、ペトロセン２０Ｂ、ＭＩ８．密度０．９１９
ｇ／ａｍ’ ）を押出ラミネートした。The engraved cooling roll body was powder coated with fluororesin so that the engraved recesses were completely filled. After that, the roll surface is polished to make it smooth, and the roll part surface A
has been established. The thermal conductivity of roll surface portion A is 0.28kc
The hardness measured according to JIS 7215 at a1/m-h·°C is HDA95. The thermal conductivity of the steel on the surface of the roll other than the surface of the roll is 45kcal/m-h*"
It is c. Hardness is HDAloo. The cooling roll was attached to an extrusion laminating device (model TP-350, manufactured by Braco Co., Ltd.) having a 25 mmφ extruder, and a polyester nonwoven fabric (E-5070, manufactured by Asahi Kasei Corporation, basis weight 70 g/g, porosity 70%, surface roughness 6 μRa) was attached. ) was used as the raw material and processed under the following processing conditions: low density polyethylene (Tosoh Corporation, Petrocene 20B, MI8. Density 0.919)
g/am') was extrusion laminated.
加工条件は以下のようにして行った。The processing conditions were as follows.
樹脂温度；３０５℃
ラインスピード；３０ｍ／ｍｉｎ
ラミネート厚み；１５μ
プレスロール線圧；１０ｋｇ／ａｎ
冷却ロール循環水温度；２０℃
かくして得られた通気性複合シートの透湿度のデータを
表１に示した。なお透湿度はＪＩＳ ２０２０８（室
温４０℃、湿度９０％）に準じて測定した。Resin temperature: 305°C Line speed: 30m/min Laminate thickness: 15μ Press roll linear pressure: 10kg/an Cooling roll circulating water temperature: 20°C The moisture permeability data of the breathable composite sheet thus obtained is shown in Table 1. . The moisture permeability was measured according to JIS 20208 (room temperature: 40° C., humidity: 90%).
実施例２
実施例１の１０ｍｍＸ １０ｍｍの正方形のロール部分
表面Ａと１０ｍｍ×１０ｍｍの正方形の金属表面部分か
らなる１０１０ｍｍＸ２０の長方形を１ユニツトの図形
とする部分被覆冷却ロールのかわりに１０ｍｍ８１５ｍ
ｍの長方形のロール部分表面Ａと１０ｍｍＸ５ｍｍの長
方形の金属表面部分からなる１０１０ｍｍＸ２０の長方
形を１ユニツトの図形とする部分被覆冷却ロールでロー
ル部分表面Ａの全ロール表面積に対する割合が７５％で
ある冷却ロールを用いた他は実施例１と同じ条件で加工
し得られた通気性複合シートの透湿度を表１に示した。Example 2 Instead of the partially covered cooling roll of Example 1 in which one unit is a 1010 mm x 20 rectangle consisting of a 10 mm x 10 mm square roll part surface A and a 10 mm x 10 mm square metal surface part, a 10 mm 815 m roll was used.
A partially covered cooling roll in which one unit is a 1010 mm x 20 rectangle consisting of a rectangular roll surface A of 10 mm x 5 mm and a 10 mm x 5 mm rectangular metal surface, and the ratio of the roll surface A to the total roll surface area is 75%. Table 1 shows the moisture permeability of the breathable composite sheet obtained by processing under the same conditions as in Example 1 except that the following was used.
実施例３
実施例１の１０ｍｍＸ １０ｍｍの正方形のロール部分
表面Ａと１０ｍｍＸ １０ｍｍの正方形の金属表面部分
からなる１０１０ｍｍＸ２０の長方形を１ユニツトの図
形とする部分被覆冷却ロールのかわりに１０ｍｍＸ５ｍ
ｍの長方形のロール部分表面Ａと１０ｍｍＸ１５ｍｍの
長方型の金属表面部分からなる１０１０ｍｍＸ２０の長
方形を１ユニツトの図形とする部分被覆冷却ロールでロ
ール部分表面Ａの全ロール表面積に対する割合が２５％
である冷却ロールを用いた他は実施例１と同じ条件で加
工し得られた通気性複合シートの透湿度を表１に示した
。Example 3 Instead of the partially covered cooling roll of Example 1, in which one unit is a 1010 mm x 20 rectangle consisting of a 10 mm x 10 mm square roll part surface A and a 10 mm x 10 mm square metal surface part, a 10 mm x 5 m
A partially coated cooling roll in which one unit is a rectangle of 1010 mm x 20 mm consisting of a rectangular roll part surface A of 10 mm x 15 mm and a rectangular metal surface part of 10 mm x 15 mm, and the ratio of the roll part surface A to the total roll surface area is 25%.
Table 1 shows the moisture permeability of the breathable composite sheet obtained by processing it under the same conditions as in Example 1, except that a cooling roll having the following properties was used.
比較例１
実施例１の鋼鉄製冷却ロール本体にロール部分表面Ａを
設けない他は実施例１と同じ条件で加工して得られた通
気性複合シートの透湿度を表１に示した。Comparative Example 1 Table 1 shows the moisture permeability of a breathable composite sheet obtained by processing the steel cooling roll body of Example 1 under the same conditions as Example 1, except that the roll portion surface A was not provided.
比較例２
実施例１の鋼鉄製冷却ロール本体の全表面にふっ素樹脂
を１００μ厚みに粉末塗装した被覆冷却ロールを用いる
他は実施例１と同じ条件で加工し得られた通気性複合シ
ートの透湿度を表１に示した。Comparative Example 2 A breathable composite sheet was processed under the same conditions as in Example 1, except that a coated cooling roll was used, in which the entire surface of the steel cooling roll body was powder-coated with fluororesin to a thickness of 100 μm. The humidity is shown in Table 1.
表１
［発明の効果コ
本発明によれば多孔性基材と熱可塑性樹脂フィルムとの
接合と有孔化を同時に行うことが可能となり通気性複合
シートの同一面上に有孔化し通気性、透湿性の機能を有
する領域と無い領域を合せ持つ通気性複合シートを容易
に製造する事ができる。Table 1 [Effects of the Invention] According to the present invention, it is possible to simultaneously bond the porous base material and the thermoplastic resin film and make the porous resin film perforated on the same side of the breathable composite sheet, thereby improving air permeability and It is possible to easily produce a breathable composite sheet that has both regions with a moisture permeability function and regions without a moisture permeability function.
従来行われている溶剤、接着剤、ホットメルト接着剤に
よる接着方法に比べ耐熱、耐溶剤性において優位にあり
その工業的価値は大きい。It has superior heat resistance and solvent resistance compared to conventional bonding methods using solvents, adhesives, and hot melt adhesives, and its industrial value is great.
第１図は押出ラミネート装置の概略図である。
１、Ｔダイス ２．溶融熱可塑性樹脂フィルム３、多孔
性基材 ４．ゴムロール ５０部分被覆冷却ロール ６
゜通気性複合シート
第２図は部分被覆冷却ロールの一表面態様を示す模式図
である。
７、ロール表面Ａ
第３図は通気性複合シートの一表面態様を示す模式図で
ある。
８シ一ト部分表面Ａ
第４図〜第１０図は部分被覆冷却ロールの例を示す展開
図である。FIG. 1 is a schematic diagram of an extrusion lamination apparatus. 1. T dice 2. Molten thermoplastic resin film 3, porous base material 4. Rubber roll 50 partially covered cooling roll 6
゜Breathable Composite Sheet Figure 2 is a schematic diagram showing one surface aspect of a partially covered cooling roll. 7. Roll surface A FIG. 3 is a schematic diagram showing one surface aspect of the breathable composite sheet. 8 Seat Partial Surface A FIGS. 4 to 10 are developed views showing examples of partially covered cooling rolls.
Claims (1)
ト法によって複合シートを製造する方法において、溶融
樹脂が直接接触するロールの表面積の０．０５％〜９９
．９５％が熱伝導率として０．０３ｋｃａｌ／ｍ・ｈ・
℃から５ｋｃａｌ／ｍ・ｈ・℃の範囲にありＪＩＳ Ｋ
７２１５に準じて測定した硬さがＨＤＡ６０以上の材質
から成るロールを用いることを特徴とする部分通気性複
合シートの製造方法。(1) In a method of manufacturing a composite sheet by extrusion lamination using a thermoplastic resin and a porous base material, 0.05% to 99% of the surface area of the roll that is in direct contact with the molten resin.
．． 95% is 0.03 kcal/m・h・ as thermal conductivity
It is in the range of ℃ to 5kcal/m・h・℃ JIS K
A method for manufacturing a partially breathable composite sheet, characterized in that a roll made of a material having a hardness of HDA 60 or higher as measured in accordance with 7215 is used.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1183797A JP2762586B2 (en) | 1989-07-18 | 1989-07-18 | Method for manufacturing partially permeable composite sheet |
| EP19900304454 EP0395381A3 (en) | 1989-04-28 | 1990-04-25 | Production of breathing composite |
| US07/515,396 US5089075A (en) | 1989-04-28 | 1990-04-27 | Production of breathing composite sheet |
| KR1019900005988A KR900015912A (en) | 1989-04-28 | 1990-04-27 | Manufacturing method of breathable composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1183797A JP2762586B2 (en) | 1989-07-18 | 1989-07-18 | Method for manufacturing partially permeable composite sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0349922A true JPH0349922A (en) | 1991-03-04 |
| JP2762586B2 JP2762586B2 (en) | 1998-06-04 |
Family
ID=16142085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1183797A Expired - Fee Related JP2762586B2 (en) | 1989-04-28 | 1989-07-18 | Method for manufacturing partially permeable composite sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2762586B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05220880A (en) * | 1992-02-08 | 1993-08-31 | Nidaiki Kk | Plastic composite material |
| JP2006240096A (en) * | 2005-03-03 | 2006-09-14 | Sekisui Chem Co Ltd | Method for producing film, film, and phase difference film |
-
1989
- 1989-07-18 JP JP1183797A patent/JP2762586B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05220880A (en) * | 1992-02-08 | 1993-08-31 | Nidaiki Kk | Plastic composite material |
| JP2006240096A (en) * | 2005-03-03 | 2006-09-14 | Sekisui Chem Co Ltd | Method for producing film, film, and phase difference film |
| JP4514625B2 (en) * | 2005-03-03 | 2010-07-28 | 積水化学工業株式会社 | Film production method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2762586B2 (en) | 1998-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5089075A (en) | Production of breathing composite sheet | |
| US6191336B1 (en) | Method of heat-sealing adhesive bandage and adhesive bandage made by using said method | |
| JP2006289937A (en) | Method for manufacturing elastic strip of composite material | |
| JP2008036885A (en) | Adsorbent film, its manufacturing method, adsorbent film with mold release film and its manufacturing method | |
| KR100411835B1 (en) | System for manufacturing air-permeable lamination,method thereof and the air-permeable lamination | |
| US8242325B2 (en) | Wound covering and its method of production by extrusion coating | |
| JPH0349922A (en) | Manufacture of partially breathing composite sheet | |
| JP2006082456A (en) | Laminated member for car trim ceiling material | |
| JP2006305937A (en) | Manufacturing method of composite material and composite material | |
| JP5068938B2 (en) | Breathable laminated sheet | |
| EP1946734A1 (en) | Topsheet and method for its manufacture | |
| JPH0948460A (en) | Adhesive tape | |
| JP2748541B2 (en) | Method for producing air-permeable composite sheet | |
| JP2824915B2 (en) | Method for producing air-permeable composite sheet | |
| TW201639701A (en) | Easy tearing film with moisture penetration and water resistance and its manufacturing | |
| JP2597150Y2 (en) | Laminate for Cairo | |
| JPS60187312A (en) | Filter for dust collector and its manufacture | |
| JP3000836B2 (en) | Water vapor permeable packaging material and method for producing the same | |
| JPH03264345A (en) | Manufacture of air permeable packaging material | |
| JP2985005B2 (en) | Manufacturing method of packaging material having air permeability in the plane direction | |
| KR102263631B1 (en) | Manufacturing method of medical adhesive sheet excellent in waterproof and breathable properties, and medical adhesive sheet manufactured by this method | |
| JP4443854B2 (en) | Moisture permeable elastomer sheet | |
| TWI584862B (en) | Low pressure drop filtration membrane | |
| JPH1121800A (en) | Surface-treated paper | |
| JPH08131472A (en) | Perforated packaging material and its housing bag |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |