JPH031856A - Throwaway pocket warmer - Google Patents
Throwaway pocket warmerInfo
- Publication number
- JPH031856A JPH031856A JP13663989A JP13663989A JPH031856A JP H031856 A JPH031856 A JP H031856A JP 13663989 A JP13663989 A JP 13663989A JP 13663989 A JP13663989 A JP 13663989A JP H031856 A JPH031856 A JP H031856A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- thickness
- volume fraction
- heat
- fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 43
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 12
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 12
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 7
- 239000000057 synthetic resin Substances 0.000 claims abstract description 7
- 229920002994 synthetic fiber Polymers 0.000 claims abstract description 4
- 239000012209 synthetic fiber Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 17
- 238000010030 laminating Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 abstract description 2
- 239000011800 void material Substances 0.000 abstract description 2
- 230000001953 sensory effect Effects 0.000 abstract 3
- 239000012212 insulator Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 17
- -1 polyethylene terephthalate Polymers 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 6
- 239000004744 fabric Substances 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000004677 Nylon Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 108091006629 SLC13A2 Proteins 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006228 ethylene acrylate copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Thermotherapy And Cooling Therapy Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は使い捨てカイロに関し、さらに詳しくは外気温
度変化の影響が少ない使い捨てカイロに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disposable body warmer, and more particularly to a disposable body warmer that is less affected by changes in outside temperature.
使い捨てカイロは、空気の存在下で発熱する組成物、例
えば鉄粉、無機塩、活性炭、水などからなる発熱組成物
を、例えば不織布と通気孔を有する非通気性樹脂フィル
ムをラミネートした上被層と、無孔の非通気性樹脂フィ
ルムと不織布をラミネートした下被層とからなる袋体内
に収容したものであり、通常は前記下被層と上被層を重
ね合わせ、その間に発熱組成物を置き、さらにその外周
を熱融着することにより製造される（特公昭５７−１４
８１４号公報）。このカイロは、空気との接触を避ける
ため、さらに非通気性樹脂フィルムで作られる袋等に密
封保存され、使用時にこれから取り出して空気と接触さ
せることにより、発熱組成物を空気と反応せしめ、発熱
させる。該カイロは、上記保温用気密袋または容器から
取り出せば直ちに発熱を開始するため、携帯用カイロそ
の他、発熱材として極めて多方面の用途を有する。Disposable hand warmers are made of a composition that generates heat in the presence of air, such as iron powder, inorganic salts, activated carbon, water, etc., and a top layer made by laminating, for example, a non-woven fabric and a non-breathable resin film with ventilation holes. It is housed in a bag consisting of a non-porous, non-breathable resin film and an undercoat layer laminated with a non-woven fabric.Usually, the undercoat layer and top coat layer are overlapped, and a heat-generating composition is placed between them. It is manufactured by placing it in place and heat-sealing its outer periphery (Japanese Patent Publication No. 57-14
Publication No. 814). In order to avoid contact with air, this warmer is stored in a sealed bag made of non-breathable resin film, and when it is used, it is removed from the bag and brought into contact with air, causing the heat-generating composition to react with the air and generate heat. let Since the warmer starts generating heat immediately after being taken out of the heat-retaining airtight bag or container, it has many uses as a heat-generating material, including portable warmers.
しかしながら、前記従来の使い捨てカイロは、人体の感
知温度・が外気温度変化によって大きく影響され、例え
ば外気温度が低下した場合には、人体に感する感知温度
も同時に低くなるという欠点があった。However, the conventional disposable body warmers have the disadvantage that the temperature sensed by the human body is greatly affected by changes in outside temperature, and for example, when the outside temperature drops, the temperature sensed by the human body also decreases.
本発明の目的は、前記従来技術の欠点をなくし、外気温
度変化に対する人体の感知温度変化の小さい使い捨てカ
イロを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the prior art and provide a disposable body warmer in which the human body senses a small temperature change in response to a change in outside air temperature.
本発明者らは、前記課題に鑑み、発熱組成物を収容する
包材について種々研究したところ、通常、鉄粉の酸化反
応熱を利用する使い捨てカイロの発熱反応は、当然外気
雰囲気温度によって変化するが、この外気温度の影響を
少なくするために包材の空気層を活かすことによって、
すなわち不織布として、使用に際しての強度をもつ特定
の厚さおよび特定の体積分率を有するものを用いること
によって、カイロの断熱性および伝熱性、さらには感触
性（ソフト性）が改善されることを見出し、本発明に到
達したものである。In view of the above-mentioned problems, the present inventors conducted various studies on packaging materials for housing exothermic compositions, and found that the exothermic reaction of disposable body warmers that utilizes the heat of oxidation reaction of iron powder naturally changes depending on the outside atmospheric temperature. However, by utilizing the air layer in the packaging material to reduce the influence of this outside temperature,
In other words, by using a nonwoven fabric with a specific thickness and volume fraction that is strong enough to be used, the heat insulation and heat transfer properties as well as the feel (softness) of the body warmer can be improved. This is the heading that led to the present invention.
すなわち、本発明は、熱可塑性合成繊維からなる不織布
に熱可塑性合成樹脂フィルムをラミネートした通気性を
有する複層構造物に、空気の存在下で発熱する発熱組成
物を収容してなる使い捨てカイロにおいて、４ｇ／２ｃ
ｆｆｌの荷重をかけたときの前記不織布の厚さが０．１
５ｍｍ〜１．５ ｍｍで、繊維体積分率が５〜２５％で
あることを特徴とする使い捨てカイロに関する。That is, the present invention provides a disposable body warmer in which a heat-generating composition that generates heat in the presence of air is housed in a breathable multi-layer structure in which a thermoplastic synthetic resin film is laminated to a nonwoven fabric made of thermoplastic synthetic fibers. ,4g/2c
The thickness of the nonwoven fabric when a load of ffl is applied is 0.1
The present invention relates to a disposable body warmer having a diameter of 5 mm to 1.5 mm and a fiber volume fraction of 5 to 25%.
本発明に用いられる熱可塑性合成繊維からなる不織布は
、４ｇ／２ｃｆｆｌの荷重で測定したときの厚さが０．
１５闘〜１．５胴で、かつ繊維体積分率が５〜２５％で
ある。この厚さが０．１５ ｍｍ未満では熱伝導性が早
く、外気温度の変化に伴って感知温度変化も急速に変化
する。また１、 ５ ｍｍを超えると外気温度の変化を
受けにくいため感知温度変化が遅く、例えば急に寒冷な
屋外に出てもカイロの暖かさが維持されるが、不織布と
して目付けが高く高価なものとなる。不織布の繊維体積
分率が５％未満では構成繊維層が粗となりすぎ、内容物
が見えたり、繊維空度が小さくなりすぎ、接着点が弱（
なる。また２５％を超えると断熱層としての空気層が有
効に活かされず、また不織布が硬く感触性が悪くなる。The non-woven fabric made of thermoplastic synthetic fibers used in the present invention has a thickness of 0.5 g when measured under a load of 4 g/2 cffl.
15 to 1.5 torso, and the fiber volume fraction is 5 to 25%. When the thickness is less than 0.15 mm, thermal conductivity is fast, and the sensed temperature changes rapidly as the outside temperature changes. Also, if the thickness exceeds 1.5 mm, it will not be susceptible to changes in outside temperature, so the temperature change will be slow.For example, the warmth of the body warmer will be maintained even if you suddenly go outside in the cold.However, as a non-woven fabric, it has a high basis weight and is expensive. becomes. If the fiber volume fraction of the nonwoven fabric is less than 5%, the constituent fiber layer will be too coarse, the contents will be visible, the fiber void will be too small, and the bonding point will be weak (
Become. If it exceeds 25%, the air layer as a heat insulating layer will not be effectively utilized, and the nonwoven fabric will be hard and have poor feel.
上記不織布の材料としては、ナイロン６、ナイロン６６
等のポリアミド系、ポリエチレンテレフタレート等のポ
リエステル系、ポリエチレン、ポリプロピレン等のポリ
オレフィン系などの熱可塑性合成高分子物質の単体繊維
および複合繊維、さらにこれらの混合繊維、さらにセル
ロース繊維バルブ等を混合したものが用いられる。該不
織布は短繊維不織布でも連続フィラメント不織布でも使
用が可能であるが、機械的性質の点から連続フィラメン
ト不織布が好ましい。連続フィラメント不織布は、例え
ば前記熱可塑性合成樹脂を多数の紡糸ノズルから溶融紡
糸することによって形成された多数の連続フィラメント
を、エアジェツト等によって牽引作用を受けさせたのち
、移動する補集装置上にウェブを形成することによって
得られる。Materials for the nonwoven fabric include nylon 6 and nylon 66.
Single fibers and composite fibers of thermoplastic synthetic polymer materials such as polyamides such as polyamides, polyesters such as polyethylene terephthalate, polyolefins such as polyethylene and polypropylene, mixed fibers thereof, and mixtures of cellulose fiber valves, etc. used. The nonwoven fabric may be either a short fiber nonwoven fabric or a continuous filament nonwoven fabric, but a continuous filament nonwoven fabric is preferred from the viewpoint of mechanical properties. Continuous filament nonwoven fabrics are produced by, for example, melt-spinning a large number of continuous filaments from a number of spinning nozzles using the thermoplastic synthetic resin, subjecting them to a pulling action using an air jet or the like, and then spinning them onto a moving collection device as a web. obtained by forming.
該連続フィラメントの単糸デニールは、得られる不織布
の通気性および発熱組成物微粉末の漏れ防止の点から０
．５〜１０デニール（顕微鏡方式による値）の範囲が好
ましい。また不織布の通気性は、３００〜１０ ｃｃ／
ｃｉ ・ｓｅｃの範囲（フラジール法通気性試験で測定
した値）であることが好ましい。The single yarn denier of the continuous filament is 0 from the viewpoint of the breathability of the obtained nonwoven fabric and the leakage prevention of the heat generating composition fine powder.
．． A range of 5 to 10 deniers (value measured using a microscope) is preferred. In addition, the breathability of the nonwoven fabric is 300 to 10 cc/
It is preferably in the range of ci·sec (value measured by Frazier method air permeability test).
また前記不織布は、機械的性質、袋体の風合いおよび柔
軟性を向上させるために部分的に熱圧着をしたものを用
いることもできる。Further, the nonwoven fabric may be partially bonded by thermocompression in order to improve the mechanical properties, the feel and flexibility of the bag.
本発明に用いられる熱可塑性合成樹脂フィルムとしては
、例えばポリエチレン、ポリプロピレン、ナイロン、ポ
リエステル、ポリウレタン、ポリ塩化ビニル、ポリ塩化
ビニリデン、ポリエチレン／酢酸ビニル、ポリエチレン
／アクリル酸等共重合物等の高分子化合物の単一フィル
ムの他、これらの高分子化合物の２層以上の積層う５ミ
ネ一トフイルム１Ｍ工Ｉｒ’！ポリエチレン／エチレン
酢酸ビニル共重合物、ポリエチレン／エチレンアクリル
酸塩共重合物等の積層フィルムなどが用いられる。これ
らのうち袋体外周の熱融着部の形成に際し、ヒートシー
ルによって強固に融着するものが好ましい。Examples of the thermoplastic synthetic resin film used in the present invention include polymeric compounds such as polyethylene, polypropylene, nylon, polyester, polyurethane, polyvinyl chloride, polyvinylidene chloride, polyethylene/vinyl acetate, polyethylene/acrylic acid copolymers, etc. In addition to single films, laminates of two or more layers of these polymeric compounds can also be used. Laminated films such as polyethylene/ethylene vinyl acetate copolymer and polyethylene/ethylene acrylate copolymer are used. Among these, those that can be firmly fused by heat sealing are preferred when forming the heat fused portion on the outer periphery of the bag.
本発明における複層構造物は、前記不織布と熱可塑性合
成樹脂フィルムをラミネートして得られるが、該複層構
造物を使い捨てカイロとして使用する際には、袋体の少
なくとも一面が通気性複層構造物とされる。該通気性複
層構造物は、例えば前記不織布と前記フィルムとをラミ
ネートした後、該フィルムもしくはラミネートされたシ
ートに通気孔を穿つことによって、または予め通気孔が
穿たれたフィルムを不織布にラミネートすることによっ
て得られる。前記フィルムに設けられる通気孔の形状、
大きさ、孔数等は、発熱組成物の種類、不織布の通気量
、所望発熱温度、所望発熱時間、保温袋のサイズ等によ
って適宜法められる。この通気孔からの空気通過量は、
通常、発熱効果の点から、その袋体の片面積を９３．５
ｃ＋ｆｌとした場合、この全面積に対してフラジール
法の通気性試験で測定したとき、用途によって異なるが
、０．５〜４０ ｃｃ ／ ｃｒＡ ・ｓｅｃの範囲が
好ましく、０．５〜１５ ｃｃ／Ｃ−・ｓｅｃの範囲が
より好ましい。ラミネートされたシートに通気孔を設け
る場合には発熱組成物が漏れるのを防止できる程度の細
孔とされる。The multilayer structure in the present invention is obtained by laminating the nonwoven fabric and a thermoplastic synthetic resin film, but when the multilayer structure is used as a disposable body warmer, at least one side of the bag is made of a breathable multilayer structure. It is considered a structure. The breathable multilayer structure can be obtained, for example, by laminating the nonwoven fabric and the film and then punching ventilation holes in the film or laminated sheet, or by laminating a film with ventilation holes in advance on the nonwoven fabric. obtained by the shape of the ventilation hole provided in the film,
The size, number of holes, etc. are determined as appropriate depending on the type of heat generating composition, the amount of ventilation of the nonwoven fabric, the desired heat generation temperature, the desired heat generation time, the size of the thermal bag, etc. The amount of air passing through this vent is
Normally, from the viewpoint of heat generation effect, the area of the bag is 93.5
When c + fl, when measured using the Frazier method air permeability test for this total area, it is preferably in the range of 0.5 to 40 cc/crA sec, and 0.5 to 15 cc/C, although it varies depending on the application. The range of -.sec is more preferable. When vent holes are provided in the laminated sheet, the pores are designed to be small enough to prevent the heat-generating composition from leaking.
不織布とフィルムのラミネートは、通常の方法、例えば
樹脂フィルムの一層または多層の押出ラミネート方法、
接着性強化のために表面処理を施したフィルムに接着剤
を塗布し、予備乾燥後、不織布と重ね合わせ、必要に応
じて加熱および／または加圧下に接着させる方法、熱圧
着等によって実施することができる。The nonwoven fabric and film can be laminated by conventional methods, such as single-layer or multi-layer extrusion lamination of resin films,
Applying an adhesive to a film that has been surface-treated to strengthen adhesion, pre-drying it, overlapping it with a nonwoven fabric, and bonding it under heat and/or pressure as necessary, or by thermocompression bonding, etc. I can do it.
本発明の使い捨てカイロは、例えば前記した通気性複層
構造物を少なくとも一面に有する袋体に発熱組成物を収
容し、その外周部を熱融着することによって得られる。The disposable body warmer of the present invention can be obtained, for example, by housing a heat-generating composition in a bag having the above-mentioned breathable multilayer structure on at least one surface, and heat-sealing the outer periphery of the bag.
熱融着は、例えば加熱ロール等の熱シーク、インバルス
シーラ、高周波シーク、超音波シーク等のヒートシール
が通常使用される。For thermal fusion, heat sealing such as heat seek using a heating roll, invulsion sealer, high frequency seek, and ultrasonic seek is usually used.
前記発熱組成物としては、空気の存在下で発熱するもの
であれば特に限定されず、例えば鉄粉などの金属粉に、
ＮａＣ１，ＫＣｊ２、ＭｇＣｆｆ１．、ＣａＣｊ！、等
金属塩化物、Ｋ、ＳＯ４、Ｎａｚ Ｓ０４ 、ＭｇＳＯ
４等の金属硫酸塩または他の反応助剤となり得る化合物
、水および水をよく吸収する保湿材（例えば活性炭、シ
リカゲル、木粉、リンター等）ならびに必要に応じて添
加剤などを混合した混合物が用いられる。The exothermic composition is not particularly limited as long as it generates heat in the presence of air; for example, metal powder such as iron powder,
NaC1, KCj2, MgCff1. , CaCj! , etc.metal chlorides, K, SO4, Naz S04, MgSO
A mixture of metal sulfates such as No. 4 or other compounds that can serve as reaction aids, water, a moisturizing agent that absorbs water well (e.g. activated carbon, silica gel, wood flour, linter, etc.), and additives as necessary. used.
以下、本発明を実施例により詳しく説明する。 Hereinafter, the present invention will be explained in detail with reference to Examples.
なお、例中の不織布の厚さおよび繊維体積分率は、４ｇ
／２ａａの荷重をかけたときの厚さおよびその時におけ
る繊維の占める割合で示した。In addition, the thickness and fiber volume fraction of the nonwoven fabric in the example are 4g
It is shown by the thickness when a load of /2aa is applied and the proportion of fiber at that time.
また感知温度変化は、ＪＩＳ測定器を用い、カイロと恒
温槽（擬似人体）間にセットした温度センサによって２
０°Ｃ雰囲気から１０°Ｃ雰囲気に変化した際の１０分
後の温度変化で示した。この変化の少ないものが外気温
度変化の影響が少ないことになる。In addition, the sensed temperature change is measured by a temperature sensor set between the warmer and the thermostat (simulated human body) using a JIS measuring device.
It shows the temperature change after 10 minutes when changing from 0°C atmosphere to 10°C atmosphere. The smaller the change, the less the influence of outside temperature changes.
実施例１
発熱組成物として、鉄粉（粒径：４４μｍ） ２５ｇ、
ＮａＣｆｆ１１．５ｇ、活性炭（粒径：４４μｍ）１０
ｇおよび水Ｌｏｇを用いた。上記組成のうちＮａ Ｃ１
，は水に溶解して活性炭に吸収させて使用した。Example 1 As a heat generating composition, 25 g of iron powder (particle size: 44 μm),
NaCff11.5g, activated carbon (particle size: 44μm) 10
g and water Log were used. Among the above compositions, Na C1
, was used by dissolving it in water and absorbing it into activated carbon.
不織布として、厚さが０．４６＋ｎｍ、繊維体積分率が
９．２％である通常のスパンポンド法で得られたナイロ
ンフィラメント（丸断面、単糸デニール２゜Ｏｄ／ｆ）
からなる不織布（目付４８ｇ／ｒｒｆ、通気量２０６
ｅｅ／ｃ＋１１− ｓｅｅ ）を使用した。また熱可塑
性合成樹脂フィルムとして、厚さ５０μｍの非通気性の
軟質ポリエチレンフィルムにを用いた。As a non-woven fabric, nylon filament (round cross section, single yarn denier 2°Od/f) obtained by the normal spunpond method with a thickness of 0.46+nm and a fiber volume fraction of 9.2%.
Non-woven fabric (fabric weight 48g/rrf, air permeability 206
ee/c+11-see) was used. Further, as the thermoplastic synthetic resin film, a non-breathable soft polyethylene film with a thickness of 50 μm was used.
上被層には、前記フィルムに前記不織布をラミネートし
た後、熱ビン方式で全穿孔面積６％、深さ０．８皿で穿
孔した１５０ｍｍＸ１００値のサイズの通気性複層構造
物を用いた。また下被層には、上被層と同じ材質の無孔
複層構造物を用いた。For the upper layer, a breathable multilayer structure with a size of 150 mm x 100 was used, in which the film was laminated with the nonwoven fabric, and then the holes were perforated with a total perforation area of 6% and a depth of 0.8 using a hot bottle method. In addition, a non-porous multilayer structure made of the same material as the upper layer was used for the lower layer.
前記の上被層と下被層をフィルム面を内側にして重ねあ
わせ、その周囲３方を５ ｍｍ幅にシールし、開口部よ
り発熱組成物を詰めた後、該開口部をシールして連続的
に使い捨てカイロを作製した。カイロのシールは、加熱
ローラシーク（シール部２０Ｍ／Ｓ絹目）を用いて行っ
た。The above-mentioned upper coat layer and lower coat layer are stacked with the film side inside, and the surrounding three sides are sealed to a width of 5 mm, and the exothermic composition is filled through the opening, and the opening is sealed to form a continuous layer. We created a disposable body warmer. The heating roller was sealed using a heating roller seek (sealing portion 20M/S silk texture).
得られたカイロの外気温度変化に対する感知温度変化は
５．６°Ｃであった。The detected temperature change of the obtained body warmer with respect to the outside air temperature change was 5.6°C.
実施例２
実施例１において、不織布として、厚さが０．８３ ｍ
１１、繊維体積分率が７．１％である通常のスパンボン
ド法で得られたボリブロビレンフィラメント（Ｙ型断面
、捲縮タイプ）からなるフェブ（目付５３ ｇ／ｒｄ）
を、ヨコ断線槽（タテ０．４ ＋ｎｍ、ヨコ２、６ ｍ
ｍ、圧着面積率１１％、深さ０．６ ｔｒｒｍ、ピッチ
：タテ３．４ ｉｎ、ヨコ２．７ｍｍ）を有するエンボ
スロールと、表面フラットの加熱ロールに通し、表面温
度上下ロール共２０５°Ｃ１２０ｋｇ／ａｍの圧力で部
分熱圧着した不繊布（通気量１７５ ｃｃ／ｃｆｆｌ・
ｓｅｅ ）を用いた以外は実施例１と同様にしてカイロ
を作製した。得られたカイロの感知温度変化は３．２°
Ｃであった。Example 2 In Example 1, the nonwoven fabric had a thickness of 0.83 m.
11. Fab (fabric weight 53 g/rd) consisting of polypropylene filaments (Y-shaped cross section, crimped type) obtained by the usual spunbond method with a fiber volume fraction of 7.1%
, horizontal disconnection tank (vertical 0.4 + nm, horizontal 2, 6 m
Passed through an embossing roll with a crimping area ratio of 11%, depth of 0.6 trrm, pitch: 3.4 inches vertically and 2.7 mm horizontally) and a heating roll with a flat surface, and the surface temperature of both upper and lower rolls was 205°C, 120 kg. Nonwoven fabric partially heat-pressed at a pressure of /am (airflow rate 175 cc/cffl・
A hand warmer was produced in the same manner as in Example 1 except that the material (see) was used. The detected temperature change of the obtained warmer was 3.2°.
It was C.
実施例３
実施例２において、不織布として、厚さが０．２６ｍ、
繊維体積分率が１６．３％である通常のスパンボンド法
で得られたナイロンフィラメント（丸断面）からなる不
織布を、エンボスロールを全面に一辺０．５ ｍｍ変形
四辺形を組み合わせた織目柄（圧着面積率２３％、深さ
０．３５ｍ＋＋、ピッチ：タテ、ヨコ１ｍｍ）を有する
エンボスロールを用いて部分熱圧着した不織布（目付４
９ｇ／ｒｒｆ、通気量１０２ ｃｃＺａｆｌ −ｓｅｃ
）を用いた以外は実施例２と同様にしてカイロを作製
し、その感知温度変化を調べた。該温度変化は７．５
”Ｃであった。Example 3 In Example 2, the nonwoven fabric had a thickness of 0.26 m,
A nonwoven fabric made of nylon filaments (round cross section) obtained by the normal spunbond method with a fiber volume fraction of 16.3% is woven with an embossed roll and a deformed quadrilateral of 0.5 mm on each side is combined on the entire surface. Non-woven fabric (fabric weight 4
9g/rrf, airflow rate 102 ccZafl-sec
) was used in the same manner as in Example 2, and the perceived temperature change was investigated. The temperature change is 7.5
“It was C.
実施例４
実施例３において、不織布として、厚さが０．２６ｍｍ
、ｌ６１ｉ維体積分率が１４．５％である通常のスパン
ボンド法で得られたポリエステルフィラメント（丸断面
）からなる不織布（目付５２ ｇ／ｒｒｆ、通気量１１
４ ｃｃ／ｃ＋ｆｌ−ｓｅｃ ）を使用した以外は実施
例３と同様にしてカイロを作製した。得られたカイロの
感知温度変化は７．２°Ｃであった。Example 4 In Example 3, the nonwoven fabric had a thickness of 0.26 mm.
, l61i A nonwoven fabric (fabric weight 52 g/rrf, air permeability 11
A hand warmer was produced in the same manner as in Example 3, except that 4 cc/c+fl-sec) was used. The perceived temperature change of the obtained body warmer was 7.2°C.
比較例１
実施例１において、不織布として、厚さが０．１４５ｍ
ｍ、繊維体積分率が２４．８％である通常のスパンボン
ド法で得られたナイロンフィラメント（丸断面）からな
る不織布（目付４９ ｇ／ｒｄ、通気量４６ ｃｃ／ｃ
ｌ−ｓｅｃ ）を使用した以外は、実施例１と同様にし
てカイロを作製した。得られたカイロの感知温度変化は
９．４°Ｃであり、はぼ外気温度変化と同じであった。Comparative Example 1 In Example 1, the nonwoven fabric had a thickness of 0.145 m.
m, a nonwoven fabric made of nylon filaments (round cross section) obtained by a normal spunbond method with a fiber volume fraction of 24.8% (fabric weight 49 g/rd, air permeability 46 cc/c
A hand warmer was produced in the same manner as in Example 1, except that a warmer was used. The temperature change perceived by the obtained body warmer was 9.4°C, which was almost the same as the outside temperature change.
本発明の使い捨てカイロによれば、袋体内の発熱組成物
の発熱効果を向上させることができるため、外気温度変
化に対する人体に感する感知温度変化を少なくすること
ができる。According to the disposable body warmer of the present invention, the heat generating effect of the heat generating composition inside the bag can be improved, so that the temperature change felt by the human body in response to a change in outside air temperature can be reduced.
Claims (1)
樹脂フィルムをラミネートした通気性を有する複層構造
物に、空気の存在下で発熱する発熱組成物を収容してな
る使い捨てカイロにおいて、４ｇ／２ｃｍ＾２の荷重を
かけたときの前記不織布の厚さが０．１５ｍｍ〜１．５
ｍｍで、繊維体積分率が５〜２５％であることを特徴と
する使い捨てカイロ。(1) A disposable body warmer made of a breathable multi-layered structure made by laminating a thermoplastic synthetic resin film on a nonwoven fabric made of thermoplastic synthetic fibers and containing a heat-generating composition that generates heat in the presence of air. The thickness of the nonwoven fabric when a load of 2 cm^2 is applied is 0.15 mm to 1.5 mm.
A disposable body warmer characterized by having a fiber volume fraction of 5 to 25% in mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13663989A JPH031856A (en) | 1989-05-30 | 1989-05-30 | Throwaway pocket warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13663989A JPH031856A (en) | 1989-05-30 | 1989-05-30 | Throwaway pocket warmer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH031856A true JPH031856A (en) | 1991-01-08 |
| JPH0556912B2 JPH0556912B2 (en) | 1993-08-20 |
Family
ID=15180012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13663989A Granted JPH031856A (en) | 1989-05-30 | 1989-05-30 | Throwaway pocket warmer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031856A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007040174A1 (en) * | 2005-10-04 | 2007-04-12 | Toyo Boseki Kabushiki Kaisha | Bag having controlled oxygen-permeability |
| JP2007136224A (en) * | 1996-12-31 | 2007-06-07 | Procter & Gamble Co | Heat pack comprising a number of separate heat cells |
| JP2007145362A (en) * | 2005-11-28 | 2007-06-14 | Toyobo Co Ltd | Bag of which oxygen permeability is controlled |
| JP2007167681A (en) * | 1996-12-31 | 2007-07-05 | Procter & Gamble Co | Disposable thermal body pad |
| JP2007190398A (en) * | 1996-12-31 | 2007-08-02 | Procter & Gamble Co | Disposable thermal back wrap |
| JP2009022774A (en) * | 1996-12-31 | 2009-02-05 | Procter & Gamble Co | Heat pack having a number of separate heat cells |
| JP2010094523A (en) * | 2009-11-30 | 2010-04-30 | Nitto Lifetech Kk | Air permeable material for body warmer |
| US7794649B2 (en) | 2005-09-23 | 2010-09-14 | Wyeth Llc | Method of making heat cells comprising exothermic compositions having absorbent gelling material |
| US7878187B2 (en) | 2005-09-23 | 2011-02-01 | Wyeth Llc | Heat cells comprising exothermic compositions having absorbent gelling material |
| US8430921B2 (en) | 2008-05-15 | 2013-04-30 | Wyeth | Portable moist heat system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5053325B2 (en) * | 2009-06-01 | 2012-10-17 | 旭化成せんい株式会社 | Method for producing nonwoven fabric for disposable warmer |
| US10123766B2 (en) | 2011-12-08 | 2018-11-13 | University Of Washington Through Its Center For Commercialization | Ultrasound stylet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5097289U (en) * | 1974-01-05 | 1975-08-13 | ||
| JPS63282351A (en) * | 1987-05-11 | 1988-11-18 | 旭化成株式会社 | Bulky long fiber nonwoven fabric |
-
1989
- 1989-05-30 JP JP13663989A patent/JPH031856A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5097289U (en) * | 1974-01-05 | 1975-08-13 | ||
| JPS63282351A (en) * | 1987-05-11 | 1988-11-18 | 旭化成株式会社 | Bulky long fiber nonwoven fabric |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007136224A (en) * | 1996-12-31 | 2007-06-07 | Procter & Gamble Co | Heat pack comprising a number of separate heat cells |
| JP2007167681A (en) * | 1996-12-31 | 2007-07-05 | Procter & Gamble Co | Disposable thermal body pad |
| JP2007190398A (en) * | 1996-12-31 | 2007-08-02 | Procter & Gamble Co | Disposable thermal back wrap |
| JP2009022774A (en) * | 1996-12-31 | 2009-02-05 | Procter & Gamble Co | Heat pack having a number of separate heat cells |
| US7794649B2 (en) | 2005-09-23 | 2010-09-14 | Wyeth Llc | Method of making heat cells comprising exothermic compositions having absorbent gelling material |
| US7878187B2 (en) | 2005-09-23 | 2011-02-01 | Wyeth Llc | Heat cells comprising exothermic compositions having absorbent gelling material |
| WO2007040174A1 (en) * | 2005-10-04 | 2007-04-12 | Toyo Boseki Kabushiki Kaisha | Bag having controlled oxygen-permeability |
| JP2007099338A (en) * | 2005-10-04 | 2007-04-19 | Toyobo Co Ltd | Bag with controlled oxygen permeability |
| JP2007145362A (en) * | 2005-11-28 | 2007-06-14 | Toyobo Co Ltd | Bag of which oxygen permeability is controlled |
| US8430921B2 (en) | 2008-05-15 | 2013-04-30 | Wyeth | Portable moist heat system |
| JP2010094523A (en) * | 2009-11-30 | 2010-04-30 | Nitto Lifetech Kk | Air permeable material for body warmer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0556912B2 (en) | 1993-08-20 |
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| Date | Code | Title | Description |
|---|---|---|---|
| RVTR | Cancellation due to determination of trial for invalidation |