JPH0616910Y2 - Cooling material - Google Patents
Cooling materialInfo
- Publication number
- JPH0616910Y2 JPH0616910Y2 JP3568189U JP3568189U JPH0616910Y2 JP H0616910 Y2 JPH0616910 Y2 JP H0616910Y2 JP 3568189 U JP3568189 U JP 3568189U JP 3568189 U JP3568189 U JP 3568189U JP H0616910 Y2 JPH0616910 Y2 JP H0616910Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- bag
- woven fabric
- insulating material
- 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.)
- Expired - Lifetime
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Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は，保冷材に関するもので，より詳しくは，吸水
性樹脂が充填されてなる袋状物であり，剥離強力の高い
素材から構成されたものであって，使用時に吸水を迅速
に行うことができ，かつ表面が平滑で，保冷材を製造す
る際に積み重ねながら冷蔵処理が可能な保冷材に関する
ものである。[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a cold insulating material, more specifically, a bag-like material filled with a water-absorbent resin, which is made of a material having high peeling strength. The present invention relates to a cold insulation material that can absorb water quickly during use, has a smooth surface, and can be refrigerated while stacking when manufacturing a cold insulation material.
（従来の技術） 従来から，保冷材としてナイロン，ポリエチレン等の熱
可塑性フイルムからなる袋状体の中に吸水性物質を充填
したものが使用されている。また，最近になって，実開
昭62−186950号公報によれば，高吸水性樹脂が通水性ま
たは注水可能な袋状体に収納されている蓄冷材（本考案
における保冷材に相当する）が開示されている。(Prior Art) Conventionally, as a cold insulating material, a bag-shaped body made of a thermoplastic film such as nylon or polyethylene filled with a water-absorbing substance has been used. Further, recently, according to Japanese Utility Model Publication No. Sho 62-186950, a cold storage material (corresponding to a cold insulation material in the present invention) in which a highly water-absorbent resin is contained in a bag-like body capable of passing water or pouring water. Is disclosed.
（考案が解決しようとする課題） ところが，前者のナイロン，ポリエチレン等の熱可塑性
フイルムからなる保冷材の場合，袋状体が無孔のフイル
ムから構成されているため，吸水口を開けて吸水作業を
行い，その後に吸水口を閉じることが必要となる。ま
た，後者の通水性または注水可能な袋からなる保冷材の
場合，袋状で通水処理が可能であるが，単一層からなる
構造であるため，ゲル状物質が取り扱い時に滲み出すこ
とになり，保冷材表面には，ゼリー状になった吸水性樹
脂（以下，含水ゲルという。）が滲み出し，表面がぬる
っとして取り扱いにくくなる。また，水を含浸させた後
に保冷材を積み重ねて冷凍処理を行った場合，不織布の
毛羽がお互いに絡み合い，しかも，表面の含水ゲルがそ
のまま凍結されるので，保冷材同士がくっつき合い，取
り出す際に袋が破損する等の問題があった。(Problems to be solved by the invention) However, in the case of the former cold insulator made of a thermoplastic film such as nylon or polyethylene, since the bag-shaped body is made of a non-perforated film, the water absorption port is opened to perform the water absorption work. After that, it is necessary to close the water inlet. In the latter case, the cold-insulating material consisting of a water-permeable or water-fillable bag allows water to be processed in a bag shape, but since it has a single-layer structure, the gel-like substance will exude during handling. The jelly-like water absorbent resin (hereinafter referred to as hydrous gel) oozes out on the surface of the cold insulating material, and the surface becomes slimy and difficult to handle. In addition, when the cold insulation materials are piled up and impregnated with water and then frozen, the fluffs of the non-woven fabric are entangled with each other and the water-containing gel on the surface is frozen as it is. There was a problem such as the bag being damaged.
（課題を解決するための手段） 本考案は，上記のような課題を解決するため，鋭意研究
した結果，到達したもので，吸水性樹脂が充填せしめら
れてなる袋状体に関するものである。すなわち，剥離強
力が優れたものであって，しかも吸水を迅速に行うこと
ができ，かつ積み重ねて冷蔵処理を行ってもシート表面
同士が接合することがない保冷材を提供することを目的
とするものである。(Means for Solving the Problems) The present invention has been achieved as a result of extensive research to solve the above problems, and relates to a bag-shaped body filled with a water-absorbent resin. That is, it is an object of the present invention to provide a heat insulating material having excellent peeling strength, capable of absorbing water quickly, and having the sheet surfaces not bonded to each other even when stacked and refrigerated. It is a thing.
すなわち，本考案は，表層部(2)がポリエステルを芯成
分，ポリエチレンを鞘成分とする複合繊維から構成され
た不織布で，該不織布には，カレンダー加工が施され，
その通気度が１〜20cc/cm2/秒であり，内層部(3)がポリ
エステルを芯成分，ポリエチレンを鞘成分とする複合繊
維からなる不織布であって，上記表層部(2)と内層部(3)
とが積層せしめられてなる積層体(4)に吸水性樹脂(5)が
充填されてなる保冷材を要旨とするものである。That is, the present invention is a non-woven fabric in which the surface layer portion (2) is composed of a composite fiber having polyester as a core component and polyethylene as a sheath component, and the non-woven fabric is calendered,
The air permeability is 1 to 20 cc / cm 2 / sec, the inner layer (3) is a nonwoven fabric composed of a composite fiber containing polyester as a core component and polyethylene as a sheath component, and the surface layer (2) and the inner layer are (3)
The gist of the present invention is a cold insulating material obtained by filling a water-absorbent resin (5) in a laminate (4) formed by stacking and.
本考案において表層部(2)，内層部(3)を構成する不織布
は，ポリエステルを芯成分，ポリエチレンを鞘成分とす
る複合繊維からなる不織布であって，長繊維不織布，短
繊維不織布のいずれも使用することができるが，強力
面，生産面かち長繊維不織布が好ましい。芯鞘型複合繊
維は，通常工業的に使用されている芯鞘型複合紡糸口金
を用いて製造することができ，例えば，溶融した熱可塑
性樹脂を紡糸孔へ導くための導入孔の上部で，溶融した
鞘部分の樹脂の中央部分に溶融した芯部分の樹脂を注入
するような構造を有するものが利用できる。また，紡出
したフイラメントを不織布にする方法については，いわ
ゆるスパンボンド法と総称されている紡出繊条を直接不
織布化する方法が利用できる。例えば，空気圧を利用し
てフイラメント束を引き取りながら延伸し，コロナ放電
等の方法で静電気的に開繊し，移動する多孔質帯状体の
上に堆積することでウエブ化した後，部分的に熱圧接す
ることでシート状物を製造する方法が一般的である。上
記複合繊維の芯鞘複合比（ポリマー重量比）は，20〜80
重量％：80〜20重量％が好ましい。In the present invention, the non-woven fabric constituting the surface layer portion (2) and the inner layer portion (3) is a non-woven fabric composed of a composite fiber containing polyester as a core component and polyethylene as a sheath component. Although it can be used, it is preferably a long-fiber non-woven fabric with a strong and production side. The core-sheath type composite fiber can be produced by using a core-sheath type composite spinneret which is usually used industrially. For example, in the upper part of the introduction hole for guiding the molten thermoplastic resin to the spinning hole, It is possible to use a resin having a structure in which the molten core resin is injected into the central portion of the molten sheath resin. Further, as a method of forming a spun filament into a non-woven fabric, a so-called spun bond method, which is a generic name, can be used to directly form a spun filament into a non-woven fabric. For example, the filament bundle is drawn using air pressure while being drawn, electrostatically opened by a method such as corona discharge, and deposited on a moving porous strip to form a web, and then partially heated. A general method is to produce a sheet-like material by pressing. The core-sheath composite ratio (polymer weight ratio) of the above composite fibers is 20 to 80.
% By weight: 80 to 20% by weight is preferred.
芯成分を構成するポリエステルとしては，ポリエチレン
テレフタレートまたはエチレンテレフタレート単位を少
なくとも85モル％以上含有する共重合ポリエステルが好
ましい。鞘成分を構成するポリエチレンは，線状低密度
ポリエチレン，低密度ポリエチレン，中密度ポリエチレ
ン，高密度ポリエチレンのいずれもが用いられる。As the polyester constituting the core component, polyethylene terephthalate or a copolymerized polyester containing at least 85 mol% of ethylene terephthalate units is preferable. As the polyethylene constituting the sheath component, any of linear low density polyethylene, low density polyethylene, medium density polyethylene and high density polyethylene is used.
上記表層部(2)および内層部(3)を構成する不織布の目付
は，それぞれ15〜100g/m2のものが通気性，風合，強度
面から好ましい。不織布の目付が15g/m2未満の場合，不
織布が薄すぎるために低強力で，特に接着された部分の
強力が低くなり，好ましくない。The basis weight of the non-woven fabric constituting the surface layer portion (2) and the inner layer portion (3) is preferably 15 to 100 g / m 2 in terms of breathability, feeling and strength. When the basis weight of the non-woven fabric is less than 15 g / m 2 , the non-woven fabric is too thin and the strength is low, especially the strength of the bonded portion is low, which is not preferable.
他方，目付が100g/m2を超えると，風合が硬く，柔軟性
に乏しいため，取り扱いが難しくなり，好ましくない。On the other hand, when the basis weight exceeds 100 g / m 2 , the feeling is hard and the flexibility is poor, and the handling becomes difficult, which is not preferable.
表層部(2)と内層部(3)からなる積層体(4)の製造は，ニ
ードルパンチ法にて両不織布を接合する方法，表層部
(2)と内層部(3)の両者のポリエチレン成分を溶融し，熱
融着する方法，バインダーにて両者を積層する方法のい
ずれの方法を採用してもよいが，積層後に袋の外側より
通水できることが必要である。The laminated body (4) consisting of the surface layer (2) and the inner layer (3) is manufactured by a method of joining both nonwoven fabrics by a needle punching method.
Either the method of melting the polyethylene components of both (2) and the inner layer part (3) and heat-sealing them, or the method of laminating both with a binder may be adopted, but after laminating, from the outside of the bag It is necessary to be able to pass water.
表層部(2)を構成する不織布の通気度は，カレンダー加
工にて１〜20cc/cm2/秒の範囲にあることが必要で，20c
c/cm2/秒を超えると，充填物の含水ゲルが取り扱い中に
外部に洩れるため，本考案の保冷材の素材として適当で
はない。また，１cc/cm2/秒未満の場合，通水性に乏し
く，吸水作業を袋の外側より行うことが困難となる。The air permeability of the non-woven fabric that constitutes the surface layer (2) must be in the range of 1 to 20cc / cm 2 / sec by calendering.
If it exceeds c / cm 2 / sec, the water-containing gel of the filler leaks to the outside during handling, so it is not suitable as a material for the cold insulating material of the present invention. If it is less than 1 cc / cm 2 / sec, the water permeability is poor, and it will be difficult to perform water absorption work from the outside of the bag.
積層体(4)により袋状体を構成するに際し，表層部(2)が
袋状体の外側を構成し，中に充填されている吸水性樹脂
と接触している部分には内層部(3)が存在している。吸
水性樹脂としては，自重の数100倍，好ましくは100〜20
0倍程度の水を吸水できるものが好ましく，具体的には
α−オレフイン/無水マレイン酸共重合体，ポリアクリ
ルアミド架橋物，ポリアクリル酸架橋物およびその塩，
ポリビニルアルコールのカルボン酸変成物等が挙げられ
る。When the bag-like body is formed by the laminate (4), the surface layer portion (2) constitutes the outside of the bag-like body, and the inner layer portion (3) is formed in the portion in contact with the water absorbent resin filled therein. ) Exists. As a water absorbent resin, several hundred times its own weight, preferably 100 to 20
Those capable of absorbing about 0 times the amount of water are preferable, and specifically, α-olefin / maleic anhydride copolymers, polyacrylamide crosslinked products, polyacrylic acid crosslinked products and salts thereof,
Examples include carboxylic acid modified products of polyvinyl alcohol.
なお，袋状体に吸水性樹脂を充填する場合，袋状体の容
積と吸水性樹脂の容積比率は，袋状体の容積が吸水前の
樹脂の容積の100〜200倍であることが好ましい。When the bag-shaped body is filled with the water-absorbent resin, the volume ratio of the bag-shaped body and the water-absorbent resin is preferably 100 to 200 times the volume of the resin before water absorption. .
本考案における保冷材の製造方法としては，コスト面，
作業環境面から加熱融着による製袋方法が好ましく，吸
水性樹脂を充填する部分を残して製袋を行い，吸水性樹
脂を充填した後に残りの部分を密封すればよい。As a method of manufacturing the cold insulating material in the present invention, the cost is
A bag-making method by heat fusion is preferable from the viewpoint of work environment, and bag-making is performed by leaving the portion filled with the water-absorbent resin, and after filling the water-absorbent resin, the remaining portion may be sealed.
以下，本考案の保冷材を添付図面によって説明する。Hereinafter, the cold insulating material of the present invention will be described with reference to the accompanying drawings.
第１図は，一実施態様を示す保冷材の一部切欠斜視図，
第２図は，保冷材の断面図を示す。FIG. 1 is a partially cutaway perspective view of a cold insulating material showing one embodiment,
FIG. 2 shows a cross-sectional view of the cold insulating material.
図から明らかなように，保冷材(1)の袋材料は，表層部
(2)と内層部(3)とが積層された積層体(4)からなり，保
冷材(1)を構成する袋状体の中にポリアクリル酸架橋物
（吸水性樹脂）(5)が収納されている。袋状体は，通水
性を有しており，袋状体の周縁部が接着部分(6)でシー
ルされ，袋状体を形成している。As is clear from the figure, the bag material of the cold insulation material (1) is
A polyacrylic acid cross-linked product (water-absorbent resin) (5) is formed in a bag-like body that is composed of a laminate (4) in which (2) and an inner layer portion (3) are laminated. It is stored. The bag-shaped body has water permeability, and the peripheral portion of the bag-shaped body is sealed by the adhesive portion (6) to form a bag-shaped body.
（作用） 本考案の保冷材が優れた剥離強力を有し，かつ不織布強
力が高く，しかも吸水処理後において，保冷材表面に含
水ゲルが滲み出ることがない理由として次のようなこと
が考えられる。(Function) The cold insulating material of the present invention has excellent peeling strength, high nonwoven fabric strength, and the reason why the hydrous gel does not seep to the surface of the cold insulating material after water absorption treatment is considered as follows. To be
積層体(4)を構成する不織布の表面部分がいずれもポリ
エチレンからなるため，製袋に際して界面での樹脂の相
溶性の面で優れている。そのため接着強力が高くなり，
しかもポリエステルを芯成分とする複合繊維からなる不
織布であるため，芯成分が繊維状態で残っており，製袋
後においても不織布の強力面で優れていることになる。Since the surface of the nonwoven fabric that constitutes the laminate (4) is made of polyethylene, the compatibility of the resin at the interface during bag making is excellent. Therefore, the adhesive strength is high,
Moreover, since it is a non-woven fabric composed of a composite fiber having polyester as a core component, the core component remains in a fiber state, which means that the non-woven fabric is excellent in strength even after bag making.
表層部(2)は，カレンダー加工されており，多孔質な不
織布の孔径をコントロールしているため，水の浸透が良
好で，かつ含水ゲルが使用時外部へ出にくい構造となっ
ている。このため，袋を開封せずに表層部(2)，内層部
(3)の多孔質面を通じて水が迅速に浸透するため，含水
ゲルの調整が容易で，しかも短時間で行うことができ
る。また，表層部(2)は，カレンダー加工されているた
め，表面部分には毛羽がほとんど認められない。そのた
め，吸水後に保冷材を積層して冷蔵庫等で冷蔵処理を行
っても，袋状物の表面の毛羽が互いに絡み合うことな
く，袋状物を破損することもない。The surface layer (2) is calendered to control the pore size of the porous non-woven fabric, so that water penetration is good and the water-containing gel does not easily come out during use. Therefore, without opening the bag, the surface layer (2), the inner layer
Since water permeates quickly through the porous surface of (3), the hydrogel can be easily adjusted and can be performed in a short time. Moreover, since the surface layer (2) is calendered, almost no fluff is observed on the surface. Therefore, even if the cold insulating material is laminated after the water absorption and refrigerated in a refrigerator or the like, the fluff on the surface of the bag-like object is not entangled with each other and the bag-like object is not damaged.
（考案の効果） 本考案によれば，使用時に水に浸漬すれば，保冷材とし
てすぐに使用でき，しかも剥離強力も高く，含水ゲルが
外部に出ることもなく，冷蔵処理時に積み重ねることが
可能で，保冷材として広く使用することができるもので
ある。(Effect of the device) According to the present invention, if it is immersed in water at the time of use, it can be immediately used as a heat insulating material, has high peeling strength, does not leak hydrous gel to the outside, and can be stacked during refrigeration processing. Therefore, it can be widely used as a cooling material.
第１図は，一実施態様の保冷材の一部切欠斜視図，第２
図は，保冷材の断面図を示す。 １……保冷材、２……表層部 ３……内層部、４……積層体 ５……吸水性樹脂、６……接着部分FIG. 1 is a partially cutaway perspective view of a cold insulating material of one embodiment, FIG.
The figure shows a cross-sectional view of the cold insulation material. 1 ... Cooling material, 2 ... Surface layer part, 3 ... Inner layer part, 4 ... Laminated body, 5 ... Water absorbent resin, 6 ... Adhesive part
Claims (1)
エチレンを鞘成分とする複合繊維から構成された不織布
で，該不織布には，カレンダー加工が施され，その通気
度が１〜20cc/cm2/秒であり，内層部(3)がポリエステル
を芯成分，ポリエチレンを鞘成分とする複合繊維からな
る不織布であって，上記表層部(2)と内層部(3)とが積層
せしめられてなる積層体(4)に吸水性樹脂(5)が充填され
てなる保冷材。1. A non-woven fabric whose surface layer (2) is composed of a composite fiber containing polyester as a core component and polyethylene as a sheath component, and the non-woven fabric is subjected to calendering and has an air permeability of 1 to 20 cc / cm 2 / sec, the inner layer (3) is a non-woven fabric composed of a composite fiber containing polyester as a core component and polyethylene as a sheath component, and the surface layer (2) and the inner layer (3) are laminated. A cold insulating material obtained by filling a water-absorbent resin (5) in a laminate (4) made of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3568189U JPH0616910Y2 (en) | 1989-03-28 | 1989-03-28 | Cooling material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3568189U JPH0616910Y2 (en) | 1989-03-28 | 1989-03-28 | Cooling material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02125949U JPH02125949U (en) | 1990-10-17 |
| JPH0616910Y2 true JPH0616910Y2 (en) | 1994-05-02 |
Family
ID=31541248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3568189U Expired - Lifetime JPH0616910Y2 (en) | 1989-03-28 | 1989-03-28 | Cooling material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0616910Y2 (en) |
-
1989
- 1989-03-28 JP JP3568189U patent/JPH0616910Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02125949U (en) | 1990-10-17 |
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