JPH02295731A - Production of foamed polyethylene sheet provided with protecting faculty against the cold and floating faculty - Google Patents
Production of foamed polyethylene sheet provided with protecting faculty against the cold and floating facultyInfo
- Publication number
- JPH02295731A JPH02295731A JP1131245A JP13124589A JPH02295731A JP H02295731 A JPH02295731 A JP H02295731A JP 1131245 A JP1131245 A JP 1131245A JP 13124589 A JP13124589 A JP 13124589A JP H02295731 A JPH02295731 A JP H02295731A
- Authority
- JP
- Japan
- Prior art keywords
- foaming
- sheet
- polyethylene
- faculty
- density polyethylene
- 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
- -1 polyethylene Polymers 0.000 title claims abstract description 13
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 12
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 5
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 16
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 16
- 239000004744 fabric Substances 0.000 claims abstract description 13
- 239000006261 foam material Substances 0.000 claims 1
- 238000005187 foaming Methods 0.000 abstract description 21
- 239000006260 foam Substances 0.000 abstract description 15
- 229920002635 polyurethane Polymers 0.000 abstract description 10
- 239000004814 polyurethane Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 239000004094 surface-active agent Substances 0.000 abstract description 8
- 239000004088 foaming agent Substances 0.000 abstract description 7
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 abstract description 5
- 235000019404 dichlorodifluoromethane Nutrition 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000009820 dry lamination Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000004604 Blowing Agent Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 3
- 210000004712 air sac Anatomy 0.000 description 2
- 125000005442 diisocyanate group Chemical group 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 230000037081 physical activity Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は各種の衣類に応用することができ、軽くて薄い
状態を維持しながら、防寒と防水機能を具備するばかり
でなく、浮力機能を併有する発泡ポリエチレン・シー｝
（Ｆｏａｍｅｄｐｏ１ｙｅｔｈｙｌｅｎｅｓｈｅｅｔ）
の製造方法に関するものである．
防寒機能のみを持つ衣類としては現在主に羽毛（ｄｕｃ
ｋ ｄｏｗｎ）や中空ポリエステル綿等が使用されて
いるが、これらを用いた衣類は第一に高価であり、第二
に洗濯が非常に難しく，第三に分厚いため自由な身体的
活動が制約される等の短所がある．その上、それ自体と
しては防水機能を有しないという問題点もある。[Detailed Description of the Invention] The present invention can be applied to various types of clothing, and while maintaining a light and thin state, it not only has cold protection and waterproof functions, but also has a buoyancy function.
(Foamedpo1yethylenesheet)
This relates to the manufacturing method. At present, the main type of clothing that only has the function of protecting against the cold is feathers (DUC).
K down) and hollow polyester cotton are used, but clothing made of these materials is firstly expensive, secondly very difficult to wash, and thirdly thick, which restricts free physical activity. There are disadvantages such as Moreover, there is also the problem that it does not have a waterproof function in itself.
浮力機能を主とする救命チョッキのような各種の浮き袋
、またはブイ（ｂ ｕ ｏ ｙ）等には、コルクまたは
発泡ポリエチレン等を用いているが、これらは柔軟性に
欠き、分厚で、嵩張るため取扱いが不便であるという問
題点がある。また意のままに折り畳むことができず、裁
断し難い等の短所がある。Cork, foamed polyethylene, etc. are used for various swim bladders such as life vests that mainly have buoyancy functions, or buoys, but these materials lack flexibility, are thick, and are bulky. There is a problem that it is inconvenient to handle. It also has disadvantages such as not being able to be folded as desired and difficult to cut.
したがって、本発明の目的は、従来の各種の防寒衣類、
浮き袋、またはブイに使用される素材が抱えている問題
点を解決すると同じに保温力、防水機能及び浮力機能の
すべてを具備するばかりでなく、製造コストが易く、薄
くて軽い発泡ポリエチレン・シートを提供することにあ
る．
このような本発明の目的は、低密度ポリエチレンを一定
の厚さのシート状に発泡した後、この発泡シートを生地
にコーティング（ｃｏａｔｉｎｇ）することによって達
成することができる．
本発明による発泡ポリエチレン・シートは独立気泡の数
が単位面積（一）当り２８〜３０の０．５〜１．０■厚
さの発泡ポリエチレン・シートをＰ／Ｃあや織（ｔｗｉ
ｌｌ）生地にポリウレタン系の接着剤を使用してコーテ
ィングすることによって製造することができる。Therefore, the object of the present invention is to
In order to solve the problems faced by the materials used for swim bladders or buoys, we developed a thin and light foamed polyethylene sheet that not only has all of the same heat retention, waterproof and buoyancy functions, but is also inexpensive to manufacture. The purpose is to provide. The object of the present invention can be achieved by foaming low-density polyethylene into a sheet of a certain thickness and then coating the foamed sheet on fabric. The foamed polyethylene sheet according to the present invention is a P/C twill weave (twi) foamed polyethylene sheet with a thickness of 0.5 to 1.0 cm and the number of closed cells is 28 to 30 per unit area.
ll) Can be manufactured by coating fabric with a polyurethane adhesive.
本発明において発泡材を製造するのに使用した樹脂は低
密度ポリエチレン樹脂である。このような低密度ポリエ
チレン樹脂は肌触りがやわらかいため衣類の裏地として
使用するのに適し、また比重が０．９１０〜０．９２５
の範囲であるため、発泡材をつくって浮力機能を持たせ
る物品に応用することができる。The resin used to produce the foam in the present invention is a low density polyethylene resin. Low-density polyethylene resin is soft to the touch, making it suitable for use as linings for clothing, and has a specific gravity of 0.910 to 0.925.
, it can be applied to products that have a buoyancy function by making foamed materials.
低密度ポリエチレン樹脂の発泡は一般的に０．５〜１．
０ｆｆｆｌｍの厚さであるとき、単位面積当りの独立気
泡の数を２０程度にする．一般的に発泡度を高めると発
泡体の保温力と浮力は上昇するが発泡度が高過ぎると、
独立気泡の代りに連続気泡が形成されるため所期の目的
を達成しがたくなる。Foaming of low density polyethylene resin is generally 0.5 to 1.
When the thickness is 0ffflm, the number of closed cells per unit area is about 20. In general, increasing the degree of foaming increases the heat retention and buoyancy of the foam, but if the degree of foaming is too high,
Since open cells are formed instead of closed cells, it becomes difficult to achieve the intended purpose.
したがって、発泡度を０．５〜１．０画としたとき、単
位面積当りの独立気泡の数を２８〜３０程度とするのが
最も望ましい。このように発泡度を増加すると保温力と
浮力が約３０％程度増加される。以上のように独立気泡
の数を２８〜３０まで増やすのに最も重要なのは連続気
泡が生成されないようにすることであるが、第１段階の
発泡時に１６０℃程度で１０分間熱し、次いで第２段階
としてフレオン（Ｆｒｅｏｎ）１２ガスを使用し圧出発
泡して達成することができる。Therefore, when the foaming degree is set to 0.5 to 1.0, it is most desirable that the number of closed cells per unit area is about 28 to 30. Increasing the degree of foaming in this way increases the heat retaining power and buoyancy by about 30%. As mentioned above, the most important thing to increase the number of closed cells to 28 to 30 is to prevent the formation of open cells. This can be achieved by pressure foaming using Freon 12 gas.
本発明においては、上記フレホンガスを第１段階で一緒
に使用して発泡することができるが、発泡度を高めるた
めの速度を調節し、連続気泡の生成を抑制するために２
段階に分けて発泡させた．なお一層詳細な説明は後述の
通りである。In the present invention, the above-mentioned Frehon gas can be used together in the first stage for foaming, but in order to adjust the speed to increase the degree of foaming and to suppress the generation of open cells,
Foaming was carried out in stages. A more detailed explanation will be given later.
本発明において、発泡は低密度ポリエチレンを発泡剤、
界面活性剤及びその他の添加剤と混合した後、圧出発泡
させる方法で行う。In the present invention, foaming uses low density polyethylene as a foaming agent,
This is carried out by mixing with a surfactant and other additives and then foaming under pressure.
．発泡剤は主に不活性でポリエチレン樹脂との混合に容
易な有機発泡剤を使用するが、これにはアゾデイカーボ
ンアミド（Ａ２０−ｄｉｃａｒ ｂｏｎａｍｉ ｄｅ）
４．４’ −オクシービス（ベンゼンソルフオン）ハイ
ドラジド（４．４’−ｏｘｙ−ｂｉｓ （ｂｅｎｚｅｎ
ｅｓｕｌｆｏｎｅ）ｈｙｄｒａｚｉｄｅ）又はアゾビス
イソブチロニトリル（Ａｚｏｂｉ ｓ ｉ ｓｏｂｕｔ
ｙｒｏｎｉｔｒｉｌｅ）があり、デイニトロソペンタメ
チレンテトラミン（Ｄｉｎｉｔｒｏｓｏｐｅｎｔａｍｅ
ｔｈｙｌｅｎｅｔｅｔｒａｍｉｎｅ）も使用することが
できる。．． The blowing agent used is mainly an organic blowing agent that is inert and easy to mix with polyethylene resin, such as azo dicarbonamide (A20-dicar bonamide).
4.4'-oxybis(benzenesulfone)hydrazide
esulfone) hydrazide) or azobis isobutyronitrile (Azobis isobutyronitrile)
yronitrile) and deinitrosopentamethylenetetramine (Dinitrosopentamethylene).
thylenetetramine) can also be used.
以上のような例は本発明において第１発泡剤として使用
することができ、第２次発泡剤としては常温においてガ
ス体であるフレオン１２ガスを使用する。The above examples can be used as the first blowing agent in the present invention, and Freon 12 gas, which is a gas at room temperature, is used as the second blowing agent.
発泡剤と共に界面活性剤を使用すれば小さくて均一な独
立気泡をつくることができるのであるが、このような界
面活性剤としてはシリコン油を使用する．
発泡剤は低密度ポリエチレン１１００重量部当り３〜５
重量部を使用し、界面活性剤は１〜３重量部を使用する
ことが望ましい。Small and uniform closed cells can be created by using a surfactant together with a foaming agent, and silicone oil is used as such a surfactant. The blowing agent is 3 to 5 per 1100 parts by weight of low density polyethylene.
It is desirable to use 1 to 3 parts by weight of the surfactant.
発泡時にはまず低密度ポリエチレン、発泡剤そして界面
活性剤を混合した後、加熱発泡してポリエチレンセル（
ｃｅ Ｌ ｌ）を膨張させ、次いで第２次発泡注入剤と
してフレオン１２ガスを使用して圧出成型法を利用し、
一定の厚さに発泡させる。一方、発泡時には易型剤を添
加することもできる．
ここで製造された発泡ポリエチレンは一般的に他の樹脂
製品同様熱に弱いという短所がある。When foaming, first mix low-density polyethylene, a foaming agent, and a surfactant, then heat and foam to form polyethylene cells (
ce L l) and then using extrusion molding method using Freon-12 gas as the secondary foam injection agent,
Foam to a certain thickness. On the other hand, a form-facilitating agent can also be added during foaming. The foamed polyethylene produced here generally has the disadvantage of being sensitive to heat, like other resin products.
それ故このような短所を補強するために比較的熱に強い
Ｐ／Ｃあや織生地にコーティングする段階を経るのであ
るが、この場合には所要の接着剤を使用してドライラミ
ネーション（ＤｒｙＬａｍｉｎａｔｉｏｎ）を行なう方
法を利用す一般的にポリエチレン樹脂製品の接着は他の
樹脂製品と異なり面倒な点があるため適切な接着剤を選
択して使用しなければならない。これにはポリウレタン
系の接着剤を使用しドライラミネーションして接着する
ことが望ましい。Therefore, in order to overcome these shortcomings, a relatively heat-resistant P/C twill fabric is coated, but in this case, dry lamination is performed using the required adhesive. In general, unlike other resin products, adhesion of polyethylene resin products using this method is troublesome, so an appropriate adhesive must be selected and used. For this purpose, it is desirable to use a polyurethane adhesive and perform dry lamination.
ポリウレタン系の接着剤は発泡ポリウレタン・シートに
Ｍｉ傷を与えないばかりでなく、接着製品のイソシアネ
ート（Ｉ ｓｏｃｙａｎａｔｅ）基である−ＮＣＯがＰ
／Ｃあや織生地のポリエステルにある水酸基（−ＯＨ）
に反応してウレタン（Ｕｒｅｔｈａｍｅ）結合（−ＮＨ
−Ｃ○−０−）をなして硬化するため接着剤として使用
するのがよい．
このようなポリウレタン系接着剤の中でもデイイソシア
ネートーポリエステル系接着剤、またはインシアネート
ーゴム系接着剤を使用することができるが、Ｐ／Ｃあや
織生地にはディイソシアネートーポリエステル系の接着
剤を使用することが望ましい。Polyurethane-based adhesives not only do not cause Mi scratches on foamed polyurethane sheets, but also the isocyanate (I socyanate) group of the adhesive product, -NCO, is
/C Hydroxyl group (-OH) in polyester of twill fabric
A urethane bond (-NH
-C○-0-) and cures, so it is best used as an adhesive. Among such polyurethane adhesives, diisocyanate polyester adhesives or incyanate rubber adhesives can be used, but diisocyanate polyester adhesives are not recommended for P/C twill fabrics. It is desirable to use it.
低密度ポリエチレン発泡シートにポリウレタン系接着剤
を使用してＰ／Ｃあや織生地にコーティングする場合に
はドライラミネーション法を使用するのがよい。一方、
ドライラミネーションにおける時間を短縮させるために
はポリウレタン系１液型接着剤を使用することが望まし
い。When coating a P/C twill fabric using a polyurethane adhesive on a low-density polyethylene foam sheet, it is preferable to use a dry lamination method. on the other hand,
In order to shorten the time required for dry lamination, it is desirable to use a one-component polyurethane adhesive.
発泡シートとＰ／Ｃあや織生地とを接着する場合には、
発泡シート中の独立気泡が損傷されないようにしなけれ
ばならない。接着段階においてシート中の独立気泡が損
傷されると保温力、浮力及び防水力等の機能が低下する
ためである．上記のようにして製造されたラミネート（
Ｌａｍｉｎａｔｅ）は軽くて薄いため加工に便利である
という長所がある。このようなラミネートは防寒服は勿
論救命チョッキをつくることができ、テント等の各種の
スポーツレジャー等の装備品も製造することができる。When bonding the foam sheet and P/C twill fabric,
It must be ensured that the closed cells in the foam sheet are not damaged. This is because if the closed cells in the sheet are damaged during the adhesion stage, functions such as heat retention, buoyancy, and waterproofing will decline. Laminate produced as described above (
Laminate) has the advantage of being light and thin, making it convenient for processing. Such laminates can be used to make not only winter clothing but also life vests, as well as various sports and leisure equipment such as tents.
実施例について本発明をより詳細に説明すれば次の通り
である。The present invention will be described in more detail with reference to embodiments as follows.
実施例１．
低密度ポリエチレンの発泡
低密度ポリエチレン１００重量部（Ｍ１＝３．０，密度
＝０．９２ｇ／ｃｃ），発泡剤としてディニト口ソペン
タメチレンテトラミン５重砥部、界面活性剤としてシリ
コン油２重量部を室温下で混合した後、徐々に加熱して
低密度ボリエチレンを第１段階に発泡させる。次いで第
２次発泡剤としてフレオン１２ガスを注入して第２段階
発泡をさせながら圧出機を通して０．５閣の厚さを持つ
シート状に形成する。発泡完了後発泡シートの密度は０
．０５＋ｇ／ｃｃであり、独立気泡の数は単位面積当り
平均３０程度と均一であった。第１段階発泡時には加熱
時間は１６０℃程度にして１０分であった。Example 1. Low-density polyethylene foaming 100 parts by weight of low-density polyethylene (M1 = 3.0, density = 0.92 g/cc), 5 parts of Dinito sopentamethylenetetramine as a foaming agent, 2 parts by weight of silicone oil as a surfactant. After mixing at room temperature, the low density polyethylene is foamed in the first stage by gradual heating. Next, Freon 12 gas is injected as a secondary foaming agent to perform a second foaming process, while passing through an extruder to form a sheet having a thickness of 0.5 mm. After foaming is complete, the density of the foam sheet is 0.
．． 05+g/cc, and the number of closed cells was uniform with an average of about 30 per unit area. During the first stage foaming, the heating time was about 160° C. for 10 minutes.
実施例２．
発泡シートとＰ／Ｃあや織生地のコーティング
接着剤としてポリウレタン糸２液型接着剤（束星化学工
業（株）製ＤＬ−４０６）と硬化剤（東星化学工業（株
）ｇ！Ｈ−５０）とを使用して、実施例１で製造した低
密度ポリエチレン発泡シートとＰ／Ｃあや織生地をコー
ティングする．
このようなコーティング段階はドライラミネーション（
ＤｒｙＬａｍｉｎｅｔ ｔｏｎ）法を利用ずる。一方、
２液型接着剤の代りに１液型ポリウレタン系の接着剤で
あるＬ−３ ０ ５ ０（束星化学工業（株）製）を利
用して、ドライラミネーション法により発泡シートとＰ
／Ｃあや織生地を接着する。Example 2. As a coating adhesive for the foam sheet and P/C twill fabric, we used a polyurethane thread two-component adhesive (DL-406 manufactured by Takusei Chemical Industry Co., Ltd.) and a hardening agent (g!H-50 manufactured by Tosei Chemical Industry Co., Ltd.). ) to coat the low-density polyethylene foam sheet produced in Example 1 and the P/C twill fabric. Such a coating step is called dry lamination (
The DryLaminet ton method is used. on the other hand,
Instead of a two-component adhesive, a one-component polyurethane adhesive, L-3050 (manufactured by Takusei Kagaku Kogyo Co., Ltd.), was used to bond the foam sheet to P by a dry lamination method.
/C Glue the twill fabric.
Claims (1)
の数が２８〜３０である低密度ポリエチレン発泡材をポ
リエチレン系の接着剤を使用し、Ｐ／Ｃあや織生地にド
ライラミネーションしたことを特徴とする防寒及び浮力
機能を具備する発泡ポリエチレン・シートの製造方法。When the thickness is 0.5 to 1.0 mm, low density polyethylene foam material with 28 to 30 closed cells per unit area is dry laminated to P/C twill fabric using polyethylene adhesive. A method for producing a foamed polyethylene sheet having cold protection and buoyancy functions.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019890005340A KR900016329A (en) | 1989-04-22 | 1989-04-22 | Manufacturing method of foamed polyethylene sheet having cold protection and buoyancy function |
| KR5340 | 1989-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02295731A true JPH02295731A (en) | 1990-12-06 |
Family
ID=19285570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1131245A Pending JPH02295731A (en) | 1989-04-22 | 1989-05-24 | Production of foamed polyethylene sheet provided with protecting faculty against the cold and floating faculty |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH02295731A (en) |
| KR (1) | KR900016329A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3039794U (en) * | 1997-01-20 | 1997-07-31 | 豊田 勝 | Fabric and life jacket using the fabric |
| KR20030059606A (en) * | 2002-01-03 | 2003-07-10 | 기영상 | Anti-sleep tarpaulin having a breathability and porous |
-
1989
- 1989-04-22 KR KR1019890005340A patent/KR900016329A/en not_active Application Discontinuation
- 1989-05-24 JP JP1131245A patent/JPH02295731A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3039794U (en) * | 1997-01-20 | 1997-07-31 | 豊田 勝 | Fabric and life jacket using the fabric |
| KR20030059606A (en) * | 2002-01-03 | 2003-07-10 | 기영상 | Anti-sleep tarpaulin having a breathability and porous |
Also Published As
| Publication number | Publication date |
|---|---|
| KR900016329A (en) | 1990-11-13 |
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