JP2002048466A - Vacuum insulation material and cold and heat-reserving container, refrigerator and hot water supply apparatus using it - Google Patents
Vacuum insulation material and cold and heat-reserving container, refrigerator and hot water supply apparatus using itInfo
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- JP2002048466A JP2002048466A JP2000238923A JP2000238923A JP2002048466A JP 2002048466 A JP2002048466 A JP 2002048466A JP 2000238923 A JP2000238923 A JP 2000238923A JP 2000238923 A JP2000238923 A JP 2000238923A JP 2002048466 A JP2002048466 A JP 2002048466A
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- Japan
- Prior art keywords
- heat insulating
- adsorbent
- vacuum heat
- insulating material
- water
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する分野】本発明は、家電製品、保温保冷容
器、冷蔵庫、自動販売機、給湯器等、車両、及び住宅等
の断熱材として使用可能な真空断熱材に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum heat insulating material which can be used as a heat insulating material for home electric appliances, heat insulating and cooling containers, refrigerators, vending machines, water heaters, vehicles, houses and the like.
【０００２】[0002]
【従来の技術】近年、地球温暖化防止の観点から省エネ
ルギーが強く望まれており、家庭用電化製品についても
省エネルギー化は緊急の課題となっている。特に、冷蔵
庫、冷凍庫、ジャー炊飯器、給湯器等の保温保冷機器で
は熱を効率的に利用するという観点から、優れた断熱性
能を有する断熱材が求められている。2. Description of the Related Art In recent years, energy saving has been strongly demanded from the viewpoint of prevention of global warming, and energy saving has become an urgent issue also for home electric appliances. In particular, a heat insulating material having excellent heat insulating performance has been demanded from a viewpoint of efficiently utilizing heat in a heat insulating and cooling device such as a refrigerator, a freezer, a jar rice cooker, and a water heater.
【０００３】この様な課題を解決する一手段として特開
平７−６３４６９号公報に開示されているような芯材
(コア材)と水分を吸着する吸着剤(ケ゛ッター材)及びこれら
を被覆する外被材(外包容器)とからなる真空断熱材があ
る。One means for solving such a problem is a core material disclosed in Japanese Patent Application Laid-Open No. 7-63469.
There is a vacuum heat insulating material comprising a (core material), an adsorbent (ketter material) for adsorbing moisture, and a jacket material (envelope container) covering these.
【０００４】吸着剤は、芯材から発生するガスや、外部
から透過侵入してくるガスにより、真空断熱材の真空度
が上昇し、断熱性能を劣化するのを抑制するため適用さ
れている。[0004] Adsorbents are used to prevent the gas generated from the core material or the gas permeating from the outside from increasing the degree of vacuum of the vacuum heat insulating material, thereby suppressing deterioration of the heat insulating performance.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、特開平
７−６３４６９号公報では、吸着剤を密閉する缶を開封
後、芯材と共に外被材に挿入し、真空包装機にセットを
行う真空断熱材作製中において、吸着剤は大気中に曝さ
れるため、大気中に存在する水蒸気等を吸着し、吸着性
能が劣化してしまうという課題があった。However, Japanese Patent Application Laid-Open No. 7-63469 discloses a vacuum heat insulating material in which a can for sealing an adsorbent is opened, inserted into a jacket material together with a core material, and set in a vacuum packaging machine. During manufacture, the adsorbent is exposed to the air, so that it adsorbs water vapor and the like present in the air, and thus has a problem in that the adsorption performance is deteriorated.
【０００６】更に、作業者の手や腕についていた汗や機
械部の結露等の水分が吸着剤に接触した場合には、吸着
性能が劣化する可能性があった。Furthermore, if moisture such as sweat on the hands and arms of an operator or dew condensation on a mechanical part comes into contact with the adsorbent, there is a possibility that the adsorption performance may be degraded.
【０００７】また、一般に真空断熱材に使用する芯材
は、その芯材の保持水分を除去するため、予め乾燥処理
を行った後使用することが多い。[0007] In addition, the core material generally used for the vacuum heat insulating material is often used after being dried in advance in order to remove moisture retained in the core material.
【０００８】しかし無機繊維からなるシート状成形体、
例えばグラスファイバー、グラスウール、セラミックフ
ァイバー、ロックウール等を芯材としたとき、乾燥処理
後、外被材に挿入し、真空包装機にセットを行う真空断
熱材作製中に大気中の水蒸気を再吸着する。これは、一
般に芯材として用いられる連通ウレタンフォーム等に比
べ、速度が速く、また吸着量も多い。However, a sheet-like molded body made of inorganic fibers,
For example, when glass fiber, glass wool, ceramic fiber, rock wool, etc. is used as the core material, after drying, insert it into the jacket material and set it in a vacuum packaging machine. I do. This has a higher speed and a larger amount of adsorption than a communicating urethane foam or the like generally used as a core material.
【０００９】このとき芯材に再吸着した水蒸気の殆どは
真空排気中に排気されるため、無機繊維からなるシート
状成形体を芯材としたときは、排気される気体中には水
蒸気が多く含まれており、吸着剤はこの排気中の気体に
触れることにより吸着性能が劣化する課題があった。At this time, most of the water vapor re-adsorbed to the core material is exhausted during vacuum evacuation. Therefore, when a sheet-like molded body made of inorganic fibers is used as the core material, a large amount of water vapor is contained in the exhausted gas. There is a problem that the adsorbent is included and the adsorption performance is deteriorated when the adsorbent comes into contact with the gas in the exhaust gas.
【００１０】また、吸着剤として鋭利な破断面を有する
粒状物質等を用いたときや輸送中の振動等により、吸着
剤が真空断熱材の外被材を突き刺し、これより発生した
ピンホールによって、真空断熱材の真空度が上昇し、断
熱性能が劣化する可能性があった。Further, when a granular material having a sharp fractured surface is used as the adsorbent or due to vibration during transportation, etc., the adsorbent pierces the jacket material of the vacuum heat insulating material, and a pinhole generated thereby causes There was a possibility that the degree of vacuum of the vacuum heat insulating material was increased and the heat insulating performance was deteriorated.
【００１１】本発明は、上記課題を鑑み、真空断熱材作
製工程において、取扱い性及び生産性を損なわずに吸着
剤の吸着性能劣化を防止し、吸着剤の吸着性能を維持す
ることで、長期にわたり、断熱性能に優れた真空断熱材
を提供することを目的とする。The present invention has been made in view of the above-mentioned problems, and in a vacuum heat insulating material manufacturing process, it is possible to prevent the adsorbent from deteriorating in adsorbent performance without impairing handleability and productivity and maintain adsorbent adsorbent performance for a long time. The present invention aims to provide a vacuum heat insulating material having excellent heat insulating performance.
【００１２】[0012]
【課題を解決するための手段】上記課題を解決するた
め、本発明の真空断熱材は、芯材と、少なくとも水分を
吸着する吸着剤と、ガスバリア性フィルムからなる外被
材とからなる真空断熱材において、前記吸着剤が、少な
くとも撥水処理を施している耐水性和紙層と微細孔を有
しているポリエチレン層とを含む積層フィルムからなる
包装材にて覆われていることを特徴とする真空断熱材で
ある。In order to solve the above-mentioned problems, a vacuum heat insulating material of the present invention comprises a core material, an adsorbent for adsorbing at least moisture, and a vacuum heat insulating material comprising a gas barrier film. In the material, the adsorbent is covered with a packaging material comprising a laminated film including at least a water-resistant Japanese paper layer subjected to a water-repellent treatment and a polyethylene layer having micropores. Vacuum insulation.
【００１３】従って、微細孔を有しているポリエチレン
層により、包装材で形成される袋内部へのガス透過を制
御することができ、吸着剤を密閉する缶を開封後、芯材
と共に外被材に挿入し、真空包装機にセットを行う真空
断熱材作製中において、大気中の水蒸気が吸着剤の存在
する袋内部へ侵入する速度を抑制できるため、大気中の
水蒸気を吸着することによる吸着性能劣化を低減するこ
とができる。Therefore, the permeation of the gas into the bag formed of the packaging material can be controlled by the polyethylene layer having the micropores. During the production of the vacuum insulation material, which is inserted into the material and set in a vacuum packaging machine, the speed at which atmospheric water vapor enters the bag where the adsorbent is present can be suppressed, so adsorption by adsorbing atmospheric water vapor Performance degradation can be reduced.
【００１４】更に、撥水処理を施している耐水性和紙層
により、水滴等の液体が包装材で形成される袋内部へ侵
入することを防止でき、作業者の手や腕についていた汗
や機械部の結露等の水分により袋内部に存在する吸着剤
の吸着性能劣化を防止することができる。Further, the water-repellent Japanese paper layer subjected to the water-repellent treatment can prevent liquids such as water droplets from entering the inside of the bag formed of the packaging material. It is possible to prevent the adsorption performance of the adsorbent present inside the bag from deteriorating due to moisture such as dew condensation at the portion.
【００１５】更に、真空断熱材作製工程中において、作
業者に吸着剤が劣化しないように配慮する負担を軽減す
ることができ、作業性の向上が図れる。Further, during the vacuum heat-insulating material manufacturing process, the burden on the worker to prevent the adsorbent from deteriorating can be reduced, and workability can be improved.
【００１６】また、本発明の真空断熱材は、無機繊維か
らなるシート状成形体を少なくとも2層以上積層してな
る芯材と、少なくとも水分を吸着する吸着剤と、ガスバ
リア性フィルムからなる外被材とからなる真空断熱材に
おいて、前記吸着剤が、少なくとも撥水処理を施してい
る耐水性和紙層と微細孔を有しているポリエチレン層と
を含む積層フィルムからなる包装材にて覆われているこ
とを特徴とする真空断熱材である。Further, the vacuum heat insulating material of the present invention comprises a core material obtained by laminating at least two or more layers of a sheet-like molded body made of inorganic fibers, an adsorbent for adsorbing at least moisture, and an envelope made of a gas barrier film. In a vacuum heat insulating material made of a material, the adsorbent is covered with a packaging material made of a laminated film including at least a water-resistant Japanese paper layer subjected to a water-repellent treatment and a polyethylene layer having micropores. It is a vacuum heat insulating material characterized by having.
【００１７】従って、微細孔を有しているポリエチレン
層により、包装材で形成される袋内部へのガス透過を制
御することができ、真空排気により排気される気体中に
存在する無機繊維からなるシート状成形体で構成される
芯材に再吸着した水蒸気について、吸着剤の存在する袋
内部へ侵入する速度を抑制できるため、吸着性能劣化を
低減することができる。Accordingly, the permeation of gas into the bag formed of the packaging material can be controlled by the polyethylene layer having micropores, and the polyethylene layer is formed of inorganic fibers present in the gas exhausted by vacuum evacuation. Since the rate at which the water vapor re-adsorbed by the core member formed of the sheet-like molded body enters the inside of the bag where the adsorbent exists can be suppressed, the deterioration of the adsorption performance can be reduced.
【００１８】また、本発明の真空断熱材は、芯材と、少
なくとも水分を吸着する吸着剤と、ガスバリア性フィル
ムからなる外被材とからなる真空断熱材において、前記
吸着剤が、少なくとも撥水処理を施している耐水性和紙
層と微細孔を有しているポリエチレン層と繊維層とを含
む積層フィルムからなる包装材にて覆われていることを
特徴とする真空断熱材である。Further, the vacuum heat insulating material of the present invention is a vacuum heat insulating material comprising a core material, at least an adsorbent for adsorbing moisture, and a covering material made of a gas barrier film, wherein the adsorbent is at least water repellent. A vacuum heat insulating material characterized by being covered with a packaging material comprising a laminated film including a water-resistant Japanese paper layer subjected to a treatment, a polyethylene layer having fine pores, and a fiber layer.
【００１９】従って、包装材の耐突き刺し性が強化され
るため、吸着剤として鋭利な破断面を有する粒状物質等
を用いたときにも、包装材が破れず吸着剤を保護してい
るため、吸着剤が真空断熱材の外被材を突き刺し、これ
より発生したピンホールによって、真空断熱材の真空度
が上昇し、断熱性能が劣化することを防止できる。Therefore, since the piercing resistance of the packaging material is enhanced, even when a particulate material having a sharp fracture surface is used as the adsorbent, the packaging material does not break and protects the adsorbent. The adsorbent penetrates the jacket material of the vacuum heat insulating material, and the pinholes generated thereby prevent the degree of vacuum of the vacuum heat insulating material from increasing and prevent the heat insulating performance from deteriorating.
【００２０】更に、包装材の耐衝撃性が強化されるた
め、真空断熱材を輸送する際に受ける振動によっても、
包装材が破れず吸着剤を保護しているため、吸着剤が真
空断熱材の外被材を突き刺し、これより発生したピンホ
ールによって、真空断熱材の真空度が上昇し、断熱性能
が劣化することを防止できる。Furthermore, since the impact resistance of the packaging material is enhanced, the vibration received when transporting the vacuum heat insulating material also causes
Since the packaging material protects the adsorbent without breaking, the adsorbent penetrates the envelope material of the vacuum heat insulating material, and the pinholes generated thereby increase the degree of vacuum of the vacuum heat insulating material and deteriorate the heat insulating performance. Can be prevented.
【００２１】[0021]
【発明の実施の形態】本発明の請求項１に記載の真空断
熱材は、芯材と、少なくとも水分を吸着する吸着剤と、
ガスバリア性フィルムからなる外被材とからなる真空断
熱材において、前記吸着剤が、少なくとも撥水処理を施
している耐水性和紙層と微細孔を有しているポリエチレ
ン層とを含む積層フィルムからなる包装材にて覆われて
いることを特徴とする真空断熱材である。BEST MODE FOR CARRYING OUT THE INVENTION A vacuum heat insulating material according to claim 1 of the present invention comprises a core material, an adsorbent for adsorbing at least moisture, and
In a vacuum heat insulating material comprising a sheath material comprising a gas barrier film, the adsorbent comprises a laminated film including at least a water-resistant Japanese paper layer subjected to a water-repellent treatment and a polyethylene layer having fine pores. It is a vacuum heat insulating material characterized by being covered with a packaging material.
【００２２】従って、微細孔を有しているポリエチレン
層により、包装材で形成される袋内部へのガス透過を制
御することができ、吸着剤を密閉する缶を開封後、芯材
と共に外被材に挿入し、真空包装機にセットを行う真空
断熱材作製中において、大気中の水蒸気が吸着剤の存在
する袋内部へ侵入する速度を抑制できるため、大気中の
水蒸気を吸着することによる吸着性能劣化を低減するこ
とができる。Therefore, the permeation of the gas into the bag formed of the packaging material can be controlled by the polyethylene layer having the micropores. During the production of the vacuum insulation material, which is inserted into the material and set in a vacuum packaging machine, the speed at which atmospheric water vapor enters the bag where the adsorbent is present can be suppressed, so adsorption by adsorbing atmospheric water vapor Performance degradation can be reduced.
【００２３】更に、撥水処理を施している耐水性和紙層
により、水滴等の液体が包装材で形成される袋内部へ侵
入することを防止でき、作業者の手や腕についていた汗
や機械部の結露等の水分により袋内部に存在する吸着剤
の吸着性能劣化を防止することができる。Further, the water-repellent Japanese paper layer subjected to the water-repellent treatment can prevent liquids such as water droplets from entering the inside of the bag formed of the packaging material. It is possible to prevent the adsorption performance of the adsorbent present inside the bag from deteriorating due to moisture such as dew condensation at the portion.
【００２４】更に、真空断熱材作製工程中において、吸
着剤が劣化しないように品質管理する工程を省くことが
でき、また作業者に吸着剤が劣化しないように配慮する
負担を軽減することができるため、作業性の向上が図れ
る。Further, in the vacuum heat insulating material manufacturing process, a quality control step for preventing the adsorbent from deteriorating can be omitted, and the burden on the operator to take care to prevent the adsorbent from deteriorating can be reduced. Therefore, workability can be improved.
【００２５】以上の効果により、真空断熱材作製工程に
おいて、取扱い性及び生産性を損なわずに吸着剤の吸着
性能劣化を防止し、吸着剤の吸着性能を維持することが
可能であり、これより、長期にわたり、断熱性能に優れ
た真空断熱材を提供できる。With the above effects, it is possible to prevent the adsorption performance of the adsorbent from deteriorating and to maintain the adsorption performance of the adsorbent without impairing the handleability and productivity in the vacuum heat insulating material manufacturing process. For a long time, it is possible to provide a vacuum heat insulating material having excellent heat insulating performance.
【００２６】本発明の請求項２に記載の真空断熱材は、
芯材と、少なくとも水分を吸着する吸着剤と、ガスバリ
ア性フィルムからなる外被材とからなる真空断熱材にお
いて、前記吸着剤が、少なくとも撥水処理を施している
耐水性和紙層と微細孔を有しているポリエチレン層と繊
維層とを含む積層フィルムからなる包装材にて覆われて
いることを特徴とする真空断熱材である。The vacuum heat insulating material according to claim 2 of the present invention comprises:
In a vacuum heat insulating material comprising a core material, an adsorbent that adsorbs at least moisture, and a jacket material made of a gas barrier film, the adsorbent has at least a water-resistant Japanese paper layer that has been subjected to a water-repellent treatment and a micropore. A vacuum heat insulating material characterized by being covered with a packaging material comprising a laminated film including a polyethylene layer and a fiber layer.
【００２７】従って、包装材の耐突き刺し性が強化され
るため、吸着剤として鋭利な破断面を有する粒状物質等
を用いたときにも、包装材が破れず吸着剤を保護してい
るため、吸着剤が真空断熱材の外被材を突き刺し、これ
より発生したピンホールによって、真空断熱材の真空度
が上昇し、断熱性能が劣化することを防止できる。Therefore, since the piercing resistance of the packaging material is enhanced, even when a particulate material having a sharp broken surface is used as the adsorbent, the packaging material is not broken and protects the adsorbent. The adsorbent penetrates the jacket material of the vacuum heat insulating material, and the pinholes generated thereby prevent the degree of vacuum of the vacuum heat insulating material from increasing and prevent the heat insulating performance from deteriorating.
【００２８】更に、包装材の耐衝撃性が強化されるた
め、真空断熱材を輸送する際に受ける振動によっても、
包装材が破れず吸着剤を保護しているため、吸着剤が真
空断熱材の外被材を突き刺し、これより発生したピンホ
ールによって、真空断熱材の真空度が上昇し、断熱性能
が劣化することを防止できる。Furthermore, since the impact resistance of the packaging material is enhanced, the vibration received when the vacuum insulation material is transported is also reduced.
Since the packaging material protects the adsorbent without breaking, the adsorbent penetrates the envelope material of the vacuum heat insulating material, and the pinholes generated thereby increase the degree of vacuum of the vacuum heat insulating material and deteriorate the heat insulating performance. Can be prevented.
【００２９】更に、包装材の破裂強度が強化されるた
め、作業中に誤って吸着剤を落下させたときにも包装材
が破れることがないので、不良の低減にも繋がり、安定
した生産を行うことが可能となる。Further, since the bursting strength of the packaging material is enhanced, the packaging material does not break even if the adsorbent is dropped by mistake during the operation, leading to a reduction in defects and stable production. It is possible to do.
【００３０】本発明の請求項３に記載の真空断熱材は、
無機繊維からなるシート状成形体を少なくとも2層以上
積層してなる芯材と、少なくとも水分を吸着する吸着剤
と、ガスバリア性フィルムからなる外被材とからなる真
空断熱材において、前記吸着剤が、少なくとも撥水処理
を施している耐水性和紙層と微細孔を有しているポリエ
チレン層とを含む積層フィルムからなる包装材にて覆わ
れていることを特徴とする真空断熱材である。The vacuum heat insulating material according to the third aspect of the present invention comprises:
A core material obtained by laminating at least two or more layers of a sheet-shaped molded body made of inorganic fibers, an adsorbent that adsorbs at least moisture, and a vacuum heat insulating material made of a jacket material made of a gas barrier film, wherein the adsorbent is A vacuum heat insulating material, wherein the vacuum heat insulating material is covered with a packaging material formed of a laminated film including at least a water-resistant Japanese paper layer subjected to a water-repellent treatment and a polyethylene layer having micropores.
【００３１】従って、微細孔を有しているポリエチレン
層により、包装材で形成される袋内部へのガス透過を制
御することができ、真空排気により排気される気体中に
存在する無機繊維からなるシート状成形体で構成される
芯材に再吸着した水蒸気について、吸着剤の存在する袋
内部へ侵入する速度を抑制できるため、吸着性能劣化を
低減することができる。Therefore, the permeation of gas into the bag formed of the packaging material can be controlled by the polyethylene layer having micropores, and the polyethylene layer is made of inorganic fibers present in the gas exhausted by vacuum evacuation. Since the rate at which the water vapor re-adsorbed by the core member formed of the sheet-like molded body enters the inside of the bag where the adsorbent exists can be suppressed, the deterioration of the adsorption performance can be reduced.
【００３２】本発明の請求項４に記載の真空断熱材は、
無機繊維からなるシート状成形体を少なくとも2層以上
積層してなる芯材と、少なくとも水分を吸着する吸着剤
と、ガスバリア性フィルムからなる外被材とからなる真
空断熱材において、前記吸着剤が、少なくとも撥水処理
を施している耐水性和紙層と微細孔を有しているポリエ
チレン層とを含む積層フィルムからなる包装材にて覆わ
れており、前記芯材のシート間に配設されていることを
特徴とする真空断熱材である。The vacuum heat insulating material according to claim 4 of the present invention comprises:
A core material obtained by laminating at least two or more layers of a sheet-shaped molded body made of inorganic fibers, an adsorbent that adsorbs at least moisture, and a vacuum heat insulating material made of a jacket material made of a gas barrier film, wherein the adsorbent is Is covered with a packaging material comprising a laminated film including at least a water-resistant Japanese paper layer having been subjected to a water-repellent treatment and a polyethylene layer having micropores, and is disposed between the sheets of the core material. It is a vacuum heat insulating material characterized by having.
【００３３】従って、吸着剤は、シート状成形体により
侠持されるため、テープ等による吸着剤の固定や、芯材
に凹部を成形する工程を設け凹部を成形し、この凹部に
吸着剤を配設することを実施せずに、真空排気中等の真
空断熱材作製工程中に吸着剤が所定位置から移動せず、
固定することができるため、コストダウンが図れる。Therefore, since the adsorbent is supported by the sheet-like molded body, a step of fixing the adsorbent with a tape or the like and forming a recess in the core material is provided to form the recess, and the adsorbent is filled in the recess. Without performing the disposition, the adsorbent does not move from a predetermined position during a vacuum heat insulating material manufacturing process such as during evacuation,
Since it can be fixed, cost can be reduced.
【００３４】本発明の請求項５に記載の真空断熱材は、
吸着剤が生石灰であることを特徴とする請求項１から４
のいずれか一項に記載の真空断熱材である。The vacuum heat insulating material according to the fifth aspect of the present invention comprises:
The sorbent is quicklime, wherein the sorbent is quicklime.
The vacuum heat insulating material according to any one of the above.
【００３５】従って、水分の吸着速度がシリカゲルやゼ
オライト等に比べ遅いので、吸着剤を密閉する缶を開封
後、芯材と共に外被材に挿入し、真空包装機にセットを
行う真空断熱材作製中において、大気中の水分を吸着す
るのを抑制できるため、吸着剤の劣化を防止することが
できる。Therefore, since the rate of adsorbing moisture is slower than that of silica gel or zeolite, etc., a canister for sealing the adsorbent is opened, then the core material is inserted into the outer cover material, and set in a vacuum packaging machine. Since the adsorption of moisture in the air can be suppressed in the inside, the deterioration of the adsorbent can be prevented.
【００３６】更に、水分の吸着方法は化学吸着であり、
500℃を超えるような高温条件以外では、シリカゲルや
ゼオライト等の物理吸着剤のように一度吸着した水分を
再放出することが無いため、吸着剤からの水分再放出に
よる真空断熱材の真空度の上昇を防止できる。Further, the method of adsorbing moisture is chemisorption.
Except for high-temperature conditions exceeding 500 ° C, there is no re-release of water once adsorbed unlike physical adsorbents such as silica gel and zeolite. The rise can be prevented.
【００３７】更に、化学吸着であるため、真空断熱材内
部のように水蒸気圧が極めて低い環境下おいても水分を
吸着することが可能である。Further, because of chemical adsorption, it is possible to adsorb moisture even in an environment where the water vapor pressure is extremely low, such as inside a vacuum heat insulating material.
【００３８】更に、酸化マグネシウム等の他の化学吸着
剤と比べて安価に入手可能である。Furthermore, it is available at a lower cost than other chemical adsorbents such as magnesium oxide.
【００３９】本発明の請求項６に記載の保温保冷容器
は、外箱と、内箱と、前記外箱と前記内箱の空間部に配
設された請求項１から５のいずれか一項に記載の真空断
熱材とから構成されることを特徴とする保温保冷容器で
ある。According to a sixth aspect of the present invention, there is provided the heat insulating / cooling container according to any one of claims 1 to 5, which is disposed in an outer box, an inner box, and a space between the outer box and the inner box. And a vacuum heat insulating material according to (1).
【００４０】これより、吸着剤の吸着性能劣化を防止
し、その吸着性能を維持することができるので、真空断
熱材は長期にわたり優れた断熱性能を有する。As a result, the adsorption performance of the adsorbent can be prevented from deteriorating and the adsorption performance can be maintained, so that the vacuum heat insulating material has excellent heat insulating performance over a long period of time.
【００４１】従って、保冷保温容器の断熱性能は長期に
わたり優れた断熱性能を維持でき、使用期間の延長が図
れ経済的となる。Therefore, the heat insulation performance of the cool and heat retaining container can be maintained over a long period of time, and the use period can be extended, which is economical.
【００４２】本発明の請求項７に記載の冷蔵庫は、外箱
と、内箱と、前記外箱と前記内箱によって形成される空
間に充填された発泡断熱材と、前記外箱または前記内箱
の内壁に取り付けられた請求項１から５のいずれか一項
に記載の真空断熱材とを備えた断熱箱体から構成される
ことを特徴とする冷蔵庫である。[0042] The refrigerator according to claim 7 of the present invention comprises an outer box, an inner box, a foam insulation material filled in a space formed by the outer box and the inner box, the outer box or the inner box. A refrigerator comprising a heat insulating box provided with the vacuum heat insulating material according to any one of claims 1 to 5 attached to an inner wall of the box.
【００４３】これより、吸着剤の吸着性能劣化を防止
し、その吸着性能を維持することができるので、真空断
熱材は長期にわたり優れた断熱性能を有する。Thus, the adsorption performance of the adsorbent can be prevented from deteriorating and the adsorption performance can be maintained, so that the vacuum heat insulating material has excellent heat insulating performance over a long period of time.
【００４４】従って、冷蔵庫の断熱性能は長期にわたり
優れた断熱性能を維持するため、従来と比較してより大
きな省エネ効果を挙げることができる。Therefore, the heat insulation performance of the refrigerator maintains a superior heat insulation performance for a long period of time, so that a greater energy saving effect can be obtained as compared with the conventional case.
【００４５】本発明の請求項８に記載の給湯器は、貯湯
容器と、外容器と、蓋体と、加熱器と、前記貯湯容器の
外周部部に配設された請求項１から５のいずれか一項に
記載の真空断熱材とを備えたことを特徴とする給湯器で
ある。The water heater according to claim 8 of the present invention is the hot water supply container, the outer container, the lid, the heater, and the outer peripheral portion of the hot water storage container. A water heater comprising the vacuum heat insulating material according to any one of the preceding claims.
【００４６】これより、吸着剤の吸着性能劣化を防止
し、その吸着性能を維持することができるので、真空断
熱材は長期にわたり優れた断熱性能を有する。Thus, the adsorption performance of the adsorbent can be prevented from being deteriorated, and the adsorption performance can be maintained, so that the vacuum heat insulating material has excellent heat insulating performance for a long period of time.
【００４７】従って、給湯器の断熱性能は長期にわたり
優れた断熱性能を維持するため、従来と比較してより大
きな省エネ効果を挙げることができる。Therefore, the heat insulation performance of the water heater maintains excellent heat insulation performance for a long period of time, so that a greater energy saving effect can be obtained as compared with the conventional case.
【００４８】以下、本発明の実施の形態について、図を
参照しながら説明する。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
【００４９】（実施の形態１）図１は、本発明の一実施
形態における真空断熱材の断面模式図である。また、図
２は、本発明の一実施形態における真空断熱材の平面図
である。また、図３は、図１内に示した吸着剤の拡大断
面模式図である。１は真空断熱材であり、芯材２、ガス
バリア性フィルムからなる外被材３、吸着剤４、吸着剤
を覆う多層構造からなる包装材５とから構成されてい
る。(Embodiment 1) FIG. 1 is a schematic sectional view of a vacuum heat insulating material according to an embodiment of the present invention. FIG. 2 is a plan view of a vacuum heat insulating material according to an embodiment of the present invention. FIG. 3 is an enlarged schematic cross-sectional view of the adsorbent shown in FIG. Reference numeral 1 denotes a vacuum heat insulating material, which is composed of a core material 2, a jacket material 3 made of a gas barrier film, an adsorbent 4, and a packaging material 5 having a multilayer structure covering the adsorbent.
【００５０】この真空断熱材１は、芯材２及び包装材５
に密閉された吸着剤４を外被材３に挿入後、内部を減圧
し、熱溶着により封止することで作製される。The vacuum heat insulating material 1 comprises a core material 2 and a packaging material 5
After the adsorbent 4 hermetically sealed is inserted into the jacket material 3, the inside is decompressed and sealed by heat welding.
【００５１】芯材２は、珪酸ガラスを主成分とする非晶
質構造を有する平均繊維径１〜５μｍのグラスファイバ
ーを厚み５ｍｍのシート状に加工成型したものであり、
前記シート状成型体を２枚積層し、芯材としている。The core material 2 is formed by processing glass fibers having an amorphous structure mainly composed of silicate glass and having an average fiber diameter of 1 to 5 μm into a sheet having a thickness of 5 mm.
Two sheet-like molded bodies are laminated to form a core material.
【００５２】ここで、芯材２は、例えばグラスウール、
セラミックファイバー、ロックウール等の無機繊維シー
ト状成形体、凝縮シリカ粉末、発泡パーライト粉末、珪
酸土粉末、炭酸カルシウム粉末、発泡プラスチック粉砕
粉末等の粉末や、連通ポリウレタン、連通ポリスチレン
等の有機発泡体等を用いても何ら問題なく、また積層せ
ずに１枚だけを用いても良い。Here, the core material 2 is made of, for example, glass wool,
Inorganic fiber sheet-like molded products such as ceramic fiber and rock wool, powders such as condensed silica powder, expanded pearlite powder, silicate earth powder, calcium carbonate powder, pulverized foamed plastic powder, and organic foams such as communicating polyurethane and communicating polystyrene. There is no problem even if it is used, and only one sheet may be used without laminating.
【００５３】また、必要により芯材２に存在する微量水
分除去のために、予め乾燥処理を行うことが望ましい。Further, it is desirable to carry out a drying treatment in advance in order to remove trace water present in the core material 2 if necessary.
【００５４】外被材３は、片面に外層から表面保護層と
してポリエチレンテレフタレートフィルム（１２μ
ｍ）、ガスバリア層としてアルミニウム蒸着を施したエ
チレン・ビニルアルコール共重合樹脂フィルム（１２μ
ｍ）、熱溶着層として高密度ポリエチレンフィルム（５
０μｍ）、更に対傷つき性向上のために最外層に表面保
護層としてナイロンフィルム（５０μｍ）を設けてお
り、もう一方の面には表面保護層及び熱溶着層は、上記
と同様でありガスバリア層として、アルミニウム箔（６
μｍ）を用いているラミネートフィルムにより構成され
でいる。The outer cover material 3 was formed on one side from an outer layer to a polyethylene terephthalate film (12 μm) as a surface protective layer.
m), an ethylene / vinyl alcohol copolymer resin film (12 μm) on which aluminum was deposited as a gas barrier layer.
m), a high-density polyethylene film (5
0 μm), and a nylon film (50 μm) is provided as a surface protective layer on the outermost layer to improve the scratch resistance. On the other surface, the surface protective layer and the heat-welding layer are the same as those described above. As aluminum foil (6
μm).
【００５５】ここで、外被材３は、少なくともガスバリ
ア層及び熱溶着層を有しているラミネートフィルムであ
れば良く、また対傷つき性、可とう性等の向上を図るた
め、必要に応じて一層以上の表面保護層を設けても良
い。Here, the jacket material 3 may be a laminate film having at least a gas barrier layer and a heat-sealing layer. In order to improve the scratch resistance, the flexibility and the like, it is necessary if necessary. One or more surface protective layers may be provided.
【００５６】例えば、ガスバリア層の構成材料として
は、アルミニウム等の金属箔、ポリエチレンテレフタレ
ート、エチレン・ビニルアルコール共重合樹脂、ポリエ
チレンナフタレート等にアルミニウムや銅等の蒸着を施
した金属蒸着フィルム、セラミック等の蒸着を施した無
機質蒸着フィルム等が挙げられ、特に限定するものでは
ない。For example, as a constituent material of the gas barrier layer, a metal foil such as aluminum, a metal vapor-deposited film obtained by vapor-depositing aluminum, copper, or the like on polyethylene terephthalate, ethylene-vinyl alcohol copolymer resin, polyethylene naphthalate, or the like, a ceramic, etc. And the like, and are not particularly limited.
【００５７】吸着剤４は、酸化カルシウムを９５％以上
含有している生石灰であり、４ｍｍのメッシュを用い、
これにより選別された粒径４（ｍｍ）以下の粒状物質を
用いている。The adsorbent 4 is quicklime containing 95% or more of calcium oxide.
The granular material having a particle size of 4 (mm) or less is used.
【００５８】ただし、吸着剤４は、活性炭、ゼオライ
ト、ドーソナイト、ハイドロタルサイト、塩化カルシウ
ム、塩化リチウム、酸化マグネシウム等の金属酸化物、
水酸化マグネシウムや水酸化カルシウム等の水酸化物、
バリウム−リチウム合金等の合金等を使用することも可
能である。However, the adsorbent 4 is a metal oxide such as activated carbon, zeolite, dawsonite, hydrotalcite, calcium chloride, lithium chloride, and magnesium oxide;
Hydroxides such as magnesium hydroxide and calcium hydroxide,
It is also possible to use an alloy such as a barium-lithium alloy.
【００５９】また、吸着剤４の形状は、粉末、細粒、顆
粒、錠剤、固形状等特に限定されるものではない。The shape of the adsorbent 4 is not particularly limited, such as powder, fine granules, granules, tablets, and solids.
【００６０】包装材５は、撥水処理された耐水和紙層
６、数μｍの微細孔７を有するポリエチレン層８、延伸
強化された多層ポリオレフィンの割繊維を縦及び横に連
続的に積層し、熱融着されてなる繊維層９の３層構造と
なっている。The wrapping material 5 is composed of a water-repellent hydrated paper layer 6, a polyethylene layer 8 having micropores 7 of several μm, and split fibers of a multi-layer polyolefin stretch-strengthened continuously and vertically. It has a three-layer structure of a fiber layer 9 which is thermally fused.
【００６１】撥水処理された耐水和紙層６は、パルプを
主成分とし、必要によりレーヨン等を含有させても何ら
問題ない。The hydration-resistant paper layer 6 that has been subjected to the water-repellent treatment contains pulp as a main component, and may contain rayon or the like if necessary.
【００６２】従って、微細孔７を有しているポリエチレ
ン層８により、包装材５で形成される袋内部へのガス透
過を制御することができ、吸着剤４を密閉する缶を開封
後、芯材２と共に外被材３に挿入し、真空包装機にセッ
トを行う真空断熱材１作製中において、大気中の水蒸気
が吸着剤４の存在する袋内部へ侵入する速度を抑制でき
るため、大気中の水蒸気を吸着することによる吸着性能
劣化を低減することができる。Therefore, the polyethylene layer 8 having the micropores 7 can control the gas permeation into the inside of the bag formed by the packaging material 5, and after opening the can for closing the adsorbent 4, During the production of the vacuum heat insulating material 1 which is inserted into the outer cover material 3 together with the material 2 and set in a vacuum packaging machine, the speed at which water vapor in the air enters the bag in which the adsorbent 4 is present can be suppressed. Adsorption performance deterioration due to adsorption of water vapor can be reduced.
【００６３】加えて、真空排気により排気される気体中
に存在する無機繊維からなるシート状成形体で構成され
る芯材２に再吸着した水蒸気について、吸着剤４の存在
する袋内部へ侵入する速度を抑制できるため、吸着性能
劣化を低減することができる。In addition, the water vapor re-adsorbed to the core material 2 composed of a sheet-like molded body made of inorganic fibers, which is present in the gas exhausted by the vacuum exhaust, enters the bag in which the adsorbent 4 is present. Since the speed can be suppressed, the deterioration of the adsorption performance can be reduced.
【００６４】更に、撥水処理を施している耐水性和紙層
６により、水滴等の液体が包装材５で形成される袋内部
へ侵入することを防止でき、作業者の手や腕についてい
た汗や機械部の結露等の水分により袋内部に存在する吸
着剤４の吸着性能劣化を防止することができる。Further, the water-resistant Japanese paper layer 6 which has been subjected to the water-repellent treatment can prevent liquids such as water droplets from entering the inside of the bag formed of the packaging material 5, and can prevent sweat on the hands and arms of the worker. It is possible to prevent the adsorption performance of the adsorbent 4 existing inside the bag from deteriorating due to moisture such as dew condensation in the machine section and the like.
【００６５】更に、真空断熱材１作製工程中において、
吸着剤４が劣化しないように品質管理する工程を省くこ
とができ、また作業者に吸着剤４が劣化しないように配
慮する負担を軽減することができるため、作業性の向上
が図れる。Further, during the process of manufacturing the vacuum heat insulating material 1,
The step of quality control so that the adsorbent 4 does not deteriorate can be omitted, and the burden on the worker to consider that the adsorbent 4 does not deteriorate can be reduced, so that the workability can be improved.
【００６６】また、包装材５は繊維層９を有している。The packaging material 5 has a fiber layer 9.
【００６７】従って、包装材５の耐突き刺し性が強化さ
れるため、吸着剤４として鋭利な破断面を有する粒状物
質等を用いたときにも、包装材５が破れず吸着剤４を保
護しているため、吸着剤４が真空断熱材１の外被材３を
突き刺し、これより発生したピンホールによって、真空
断熱材１の真空度が上昇し、断熱性能が劣化することを
防止できる。Accordingly, the piercing resistance of the packaging material 5 is enhanced, so that even when a granular material or the like having a sharp fracture surface is used as the adsorbent 4, the packaging material 5 is not broken and protects the adsorbent 4. Therefore, it is possible to prevent the adsorbent 4 from piercing the jacket 3 of the vacuum heat insulating material 1 and increasing the degree of vacuum of the vacuum heat insulating material 1 due to pinholes generated thereby, thereby deteriorating the heat insulating performance.
【００６８】更に、包装材５の耐衝撃性が強化されるた
め、真空断熱材１を輸送する際に受ける振動によって
も、包装材５が破れず吸着剤４を保護しているため、吸
着剤４が真空断熱材１の外被材３を突き刺し、これより
発生したピンホールによって、真空断熱材１の真空度が
上昇し、断熱性能が劣化することを防止できる。Further, since the impact resistance of the packaging material 5 is enhanced, the packaging material 5 is not broken even by the vibration received when the vacuum heat insulating material 1 is transported, and the adsorbent 4 is protected. 4 penetrates the jacket material 3 of the vacuum heat insulating material 1, and the pinholes generated thereby prevent the degree of vacuum of the vacuum heat insulating material 1 from increasing and prevent the heat insulating performance from deteriorating.
【００６９】更に、包装材５の破裂強度が強化されるた
め、作業中に誤って吸着剤４を落下させたときにも包装
材５が破れることがないので、不良の低減にも繋がり、
安定した生産を行うことが可能となる。また、吸着剤４
は、無機繊維からなるシート状成形体で構成される芯材
２により侠持されるため、テープ等による吸着剤４の固
定や、芯材２に凹部を成形する工程を設け凹部を成形
し、この凹部に吸着剤４を配設することを実施せずに、
真空排気中等の真空断熱材１作製工程中に吸着剤４が所
定位置から移動せず、固定することができるため、コス
トダウンが図れる。Further, since the bursting strength of the packaging material 5 is enhanced, the packaging material 5 is not broken even when the adsorbent 4 is dropped by mistake during the operation, which leads to a reduction in defects.
It is possible to perform stable production. The adsorbent 4
Is supported by the core material 2 composed of a sheet-like molded body made of inorganic fibers, so that a step of fixing the adsorbent 4 with a tape or the like and forming a concave portion in the core material 2 is provided, and the concave portion is formed. Without arranging the adsorbent 4 in this recess,
Since the adsorbent 4 can be fixed without moving from a predetermined position during the vacuum heat insulating material 1 manufacturing process such as during evacuation, the cost can be reduced.
【００７０】また、吸着剤４は生石灰であるため、水分
の吸着速度がシリカゲルやゼオライト等に比べ遅いの
で、吸着剤４を密閉する缶を開封後、芯材２と共に外被
材３に挿入し、真空包装機にセットを行う真空断熱材１
作製中において、大気中の水分を吸着するのを抑制でき
るため、吸着剤の劣化を防止することができる。Further, since the adsorbent 4 is quicklime, the rate of adsorbing moisture is lower than that of silica gel or zeolite, etc., so that the can closed the adsorbent 4 is opened, and then inserted into the jacket 3 together with the core 2. , Vacuum insulation material for setting in a vacuum packaging machine 1
During manufacture, adsorption of moisture in the atmosphere can be suppressed, so that deterioration of the adsorbent can be prevented.
【００７１】以上の効果により、真空断熱材作製工程に
おいて、取扱い性及び生産性を損なわずに吸着剤の吸着
性能劣化を防止し、吸着剤の吸着性能を維持することが
可能であり、これより、長期にわたり、断熱性能に優れ
た真空断熱材を提供できる。With the above effects, it is possible to prevent the adsorption performance of the adsorbent from deteriorating and to maintain the adsorption performance of the adsorbent without impairing the handleability and productivity in the vacuum heat insulating material manufacturing process. For a long time, it is possible to provide a vacuum heat insulating material having excellent heat insulating performance.
【００７２】（実施の形態２）図４は、本発明の一実施
形態における保温保冷容器の斜視図の一部を切り欠いた
断面図である。１０は保温保冷容器、１１は本体、１２
は蓋、１３はＡＢＳ製の外箱、１４はポリプロピレン製
の内箱、１５は蓄冷剤である。図４に示すように、保温
保冷容器１０の本体１１、及び蓋１２は、外箱１３と内
箱１４とにより中空の構造体を形成しており、その中空
部に真空断熱材１を挿入し保温保冷容器１０を構成して
いる。(Embodiment 2) FIG. 4 is a cross-sectional view, partially cut away, of a heat insulating and cooling container according to an embodiment of the present invention. 10 is an insulated cold container, 11 is a main body, 12
Is a lid, 13 is an outer box made of ABS, 14 is an inner box made of polypropylene, and 15 is a regenerator. As shown in FIG. 4, the main body 11 and the lid 12 of the heat insulating / cooling container 10 form a hollow structure by an outer box 13 and an inner box 14, and the vacuum heat insulating material 1 is inserted into the hollow portion. The heat insulating and cooling container 10 is configured.
【００７３】なお、真空断熱材１は実施の形態１の図１
に示したのと同様の構成のものを用いている。The vacuum heat insulating material 1 is the same as that of the first embodiment shown in FIG.
The same configuration as shown in FIG.
【００７４】これより、吸着剤の吸着性能劣化を防止
し、その吸着性能を維持することができるので、真空断
熱材１は長期にわたり優れた断熱性能を有する。As a result, the adsorption performance of the adsorbent can be prevented from deteriorating and the adsorption performance can be maintained, so that the vacuum heat insulating material 1 has excellent heat insulating performance over a long period of time.
【００７５】従って、従来と比べ長期にわたり優れた断
熱性能を維持する保温保冷容器１０を提供できるため、
レジャー用クーラーボックスをはじめ、より温度管理の
厳しい医療用の保冷容器としても有効に利用でき、かつ
使用期間の延長が図れ経済的に使用できる。Therefore, it is possible to provide a heat-insulating and cooling container 10 that maintains excellent heat insulating performance over a long period of time as compared with the prior art.
It can be effectively used as a cooler box for medical use, such as a cooler box for leisure, where temperature control is more severe, and can be used economically with a longer use period.
【００７６】（実施の形態３）図５は、本発明の一実施
形態における冷蔵庫の斜視投影図である。１６は冷蔵庫
であり、鉄板製の外箱１７と、ＡＢＳ樹脂からなる内箱
（図示せず）と、前記外箱１７と前記内箱によって形成
される空間に充填されたシクロペンタンを発泡剤とする
発泡断熱材（図示せず）と、機械室１８の上部の外箱内
壁に取り付けられた真空断熱材１とを備えた断熱箱体か
ら構成されている。(Embodiment 3) FIG. 5 is a perspective projection view of a refrigerator according to an embodiment of the present invention. Reference numeral 16 denotes a refrigerator, which includes an outer box 17 made of an iron plate, an inner box (not shown) made of ABS resin, and cyclopentane filled in a space formed by the outer box 17 and the inner box with a blowing agent. The heat insulating box includes a foamed heat insulating material (not shown) and a vacuum heat insulating material 1 attached to an inner wall of the outer box at the upper part of the machine room 18.
【００７７】なお、真空断熱材１は実施の形態１の図１
に示したのと同様の構成のものを用いている。The vacuum heat insulating material 1 is the same as that shown in FIG.
The same configuration as shown in FIG.
【００７８】これより、吸着剤の吸着性能劣化を防止
し、その吸着性能を維持することができるので、真空断
熱材１は長期にわたり優れた断熱性能を有する。As a result, the adsorption performance of the adsorbent can be prevented from deteriorating and the adsorption performance can be maintained, so that the vacuum heat insulating material 1 has excellent heat insulating performance over a long period of time.
【００７９】従って、冷蔵庫１６の断熱性能は長期にわ
たり優れた断熱性能を維持するため、従来と比較してよ
り大きな省エネ効果を挙げることができる。Accordingly, the heat insulation performance of the refrigerator 16 is maintained at an excellent level over a long period of time.
【００８０】（実施の形態４）図６は、本発明の一実施
形態における給湯器の断面図である。１９は給湯器であ
り、外容器２０と、貯湯容器２１と、蓋体２２と、加熱
器２３と、真空断熱材１とから構成されている。真空断
熱材１は、予め、貯湯容器２１の形状に沿わすように折
り曲げ加工を行い適用している。また、貯湯容器２１の
下部に取り付けられた加熱器２３の近傍付近まで、真空
断熱材１を折り曲げて取り付けている。(Embodiment 4) FIG. 6 is a sectional view of a water heater according to an embodiment of the present invention. Reference numeral 19 denotes a water heater, which includes an outer container 20, a hot water storage container 21, a lid 22, a heater 23, and the vacuum heat insulating material 1. The vacuum heat insulating material 1 is previously bent and applied so as to conform to the shape of the hot water storage container 21. Further, the vacuum heat insulating material 1 is bent and attached to the vicinity of a heater 23 attached to a lower portion of the hot water storage container 21.
【００８１】また、蓋部２２の凹部にも真空断熱材１が
設けられている。Further, the vacuum heat insulating material 1 is provided also in the concave portion of the lid portion 22.
【００８２】なお、真空断熱材１は実施の形態１の図１
に示したのと同様の構成のものを用いている。The vacuum heat insulating material 1 is the same as that of the first embodiment shown in FIG.
The same configuration as shown in FIG.
【００８３】これより、吸着剤の吸着性能劣化を防止
し、その吸着性能を維持することができるので、真空断
熱材１は長期にわたり優れた断熱性能を有する。As a result, the adsorption performance of the adsorbent can be prevented from deteriorating and the adsorption performance can be maintained, so that the vacuum heat insulating material 1 has excellent heat insulating performance over a long period of time.
【００８４】従って、従来と比べ長期にわたり優れた断
熱性能を維持する給湯器１９を提供できるため、より大
きな省エネ効果を挙げることができる。Therefore, it is possible to provide a water heater 19 that maintains excellent heat insulating performance for a long period of time as compared with the conventional case, and thus a greater energy saving effect can be obtained.
【００８５】[0085]
【発明の効果】以上のように、本発明の真空断熱材は、
芯材と、少なくとも水分を吸着する吸着剤と、ガスバリ
ア性フィルムからなる外被材とからなる真空断熱材にお
いて、前記吸着剤が、少なくとも撥水処理を施している
耐水性和紙層と微細孔を有しているポリエチレン層とを
含む積層フィルムからなる包装材にて覆われていること
を特徴とする真空断熱材である。As described above, the vacuum heat insulating material of the present invention
In a vacuum heat insulating material comprising a core material, an adsorbent that adsorbs at least moisture, and a jacket material made of a gas barrier film, the adsorbent has at least a water-resistant Japanese paper layer that has been subjected to a water-repellent treatment and a micropore. A vacuum heat insulating material, wherein the vacuum heat insulating material is covered with a packaging material comprising a laminated film including a polyethylene layer.
【００８６】従って、微細孔を有しているポリエチレン
層により、包装材で形成される袋内部へのガス透過を制
御することができ、吸着剤を密閉する缶を開封後、芯材
と共に外被材に挿入し、真空包装機にセットを行う真空
断熱材作製中において、大気中の水蒸気が吸着剤の存在
する袋内部へ侵入する速度を抑制できるため、大気中の
水蒸気を吸着することによる吸着性能劣化を低減するこ
とができる。Therefore, the permeation of the gas into the bag formed of the packaging material can be controlled by the polyethylene layer having the micropores. During the production of the vacuum insulation material, which is inserted into the material and set in a vacuum packaging machine, the speed at which atmospheric water vapor enters the bag where the adsorbent is present can be suppressed, so adsorption by adsorbing atmospheric water vapor Performance degradation can be reduced.
【００８７】更に、撥水処理を施している耐水性和紙層
により、水滴等の液体が包装材で形成される袋内部へ侵
入することを防止でき、作業者の手や腕についていた汗
や機械部の結露等の水分により袋内部に存在する吸着剤
の吸着性能劣化を防止することができる。Furthermore, the water-repellent Japanese paper layer subjected to the water-repellent treatment can prevent liquids such as water droplets from entering the inside of the bag formed of the packaging material. It is possible to prevent the adsorption performance of the adsorbent present inside the bag from deteriorating due to moisture such as dew condensation at the portion.
【００８８】更に、真空断熱材作製工程中において、吸
着剤が劣化しないように品質管理する工程を省くことが
でき、また作業者に吸着剤が劣化しないように配慮する
負担を軽減することができるため、作業性の向上が図れ
る。Further, in the vacuum heat insulating material manufacturing process, a quality control step for preventing the adsorbent from deteriorating can be omitted, and the burden on the operator to take care not to degrade the adsorbent can be reduced. Therefore, workability can be improved.
【００８９】以上の効果により、真空断熱材作製工程に
おいて、取扱い性及び生産性を損なわずに吸着剤の吸着
性能劣化を防止し、吸着剤の吸着性能を維持することが
可能であり、これより、長期にわたり、断熱性能に優れ
た真空断熱材を提供できる。With the above effects, it is possible to prevent the adsorption performance of the adsorbent from deteriorating and maintain the adsorption performance of the adsorbent without impairing the handleability and productivity in the vacuum heat insulating material manufacturing process. For a long time, it is possible to provide a vacuum heat insulating material having excellent heat insulating performance.
【００９０】また、本発明の真空断熱材は、芯材と、少
なくとも水分を吸着する吸着剤と、ガスバリア性フィル
ムからなる外被材とからなる真空断熱材において、前記
吸着剤が、少なくとも撥水処理を施している耐水性和紙
層と微細孔を有しているポリエチレン層と繊維層とを含
む積層フィルムからなる包装材にて覆われていることを
特徴とする真空断熱材である。Further, the vacuum heat insulating material of the present invention is a vacuum heat insulating material comprising a core material, at least an adsorbent for adsorbing moisture, and a covering material made of a gas barrier film, wherein the adsorbent is at least water repellent. A vacuum heat insulating material characterized by being covered with a packaging material comprising a laminated film including a water-resistant Japanese paper layer subjected to a treatment, a polyethylene layer having fine pores, and a fiber layer.
【００９１】従って、包装材の耐突き刺し性が強化され
るため、吸着剤として鋭利な破断面を有する粒状物質等
を用いたときにも、包装材が破れず吸着剤を保護してい
るため、吸着剤が真空断熱材の外被材を突き刺し、これ
より発生したピンホールによって、真空断熱材の真空度
が上昇し、断熱性能が劣化することを防止できる。Accordingly, since the piercing resistance of the packaging material is enhanced, even when a particulate material having a sharp fracture surface is used as the adsorbent, the packaging material is not broken and protects the adsorbent. The adsorbent penetrates the jacket material of the vacuum heat insulating material, and the pinholes generated thereby prevent the degree of vacuum of the vacuum heat insulating material from increasing and prevent the heat insulating performance from deteriorating.
【００９２】更に、包装材の耐衝撃性が強化されるた
め、真空断熱材を輸送する際に受ける振動によっても、
包装材が破れず吸着剤を保護しているため、吸着剤が真
空断熱材の外被材を突き刺し、これより発生したピンホ
ールによって、真空断熱材の真空度が上昇し、断熱性能
が劣化することを防止できる。Furthermore, since the impact resistance of the packaging material is enhanced, the vibration received when the vacuum insulation material is transported is also reduced.
Since the packaging material protects the adsorbent without breaking, the adsorbent penetrates the envelope material of the vacuum heat insulating material, and the pinholes generated thereby increase the degree of vacuum of the vacuum heat insulating material and deteriorate the heat insulating performance. Can be prevented.
【００９３】更に、包装材の破裂強度が強化されるた
め、作業中に誤って吸着剤を落下させたときにも包装材
が破れることがないので、不良の低減にも繋がり、安定
した生産を行うことが可能となる。Further, since the bursting strength of the packaging material is enhanced, the packaging material will not be broken even if the adsorbent is dropped by mistake during the operation, leading to a reduction in defects and stable production. It is possible to do.
【００９４】また、本発明の真空断熱材は、無機繊維か
らなるシート状成形体を少なくとも2層以上積層してな
る芯材と、少なくとも水分を吸着する吸着剤と、ガスバ
リア性フィルムからなる外被材とからなる真空断熱材に
おいて、前記吸着剤が、少なくとも撥水処理を施してい
る耐水性和紙層と微細孔を有しているポリエチレン層と
を含む積層フィルムからなる包装材にて覆われているこ
とを特徴とする真空断熱材である。Further, the vacuum heat insulating material of the present invention comprises a core material formed by laminating at least two or more layers of a sheet-like molded body made of inorganic fibers, an adsorbent for adsorbing at least moisture, and a jacket made of a gas barrier film. In a vacuum heat insulating material made of a material, the adsorbent is covered with a packaging material made of a laminated film including at least a water-resistant Japanese paper layer subjected to a water-repellent treatment and a polyethylene layer having micropores. It is a vacuum heat insulating material characterized by having.
【００９５】従って、微細孔を有しているポリエチレン
層により、包装材で形成される袋内部へのガス透過を制
御することができ、真空排気により排気される気体中に
存在する無機繊維からなるシート状成形体で構成される
芯材に再吸着した水蒸気について、吸着剤の存在する袋
内部へ侵入する速度を抑制できるため、吸着性能劣化を
低減することができる。Therefore, the permeation of gas into the bag formed of the packaging material can be controlled by the polyethylene layer having micropores, and the polyethylene layer is made of inorganic fibers present in the gas exhausted by vacuum evacuation. Since the rate at which the water vapor re-adsorbed by the core member formed of the sheet-like molded body enters the inside of the bag where the adsorbent exists can be suppressed, the deterioration of the adsorption performance can be reduced.
【００９６】また、本発明の真空断熱材は、無機繊維か
らなるシート状成形体を少なくとも2層以上積層してな
る芯材と、少なくとも水分を吸着する吸着剤と、ガスバ
リア性フィルムからなる外被材とからなる真空断熱材に
おいて、前記吸着剤が、少なくとも撥水処理を施してい
る耐水性和紙層と微細孔を有しているポリエチレン層と
を含む積層フィルムからなる包装材にて覆われており、
前記芯材のシート間に配設されていることを特徴とする
真空断熱材である。Further, the vacuum heat insulating material of the present invention comprises a core material formed by laminating at least two layers of a sheet-like molded body made of inorganic fibers, an adsorbent for adsorbing at least moisture, and a jacket made of a gas barrier film. In a vacuum heat insulating material made of a material, the adsorbent is covered with a packaging material made of a laminated film including at least a water-resistant Japanese paper layer subjected to a water-repellent treatment and a polyethylene layer having micropores. Yes,
The vacuum heat insulating material is provided between the sheets of the core material.
【００９７】従って、吸着剤は、シート状成形体により
侠持されるため、テープ等による吸着剤の固定や、芯材
に凹部を成形する工程を設け凹部を成形し、この凹部に
吸着剤を配設することを実施せずに、真空排気中等の真
空断熱材作製工程中に吸着剤が所定位置から移動せず、
固定することができるため、コストダウンが図れる。Accordingly, since the adsorbent is supported by the sheet-like molded body, a step of fixing the adsorbent with a tape or the like and forming a recess in the core material is provided to form the recess, and the adsorbent is filled in the recess. Without performing the arrangement, the adsorbent does not move from a predetermined position during the vacuum heat insulating material manufacturing process such as during evacuation,
Since it can be fixed, cost can be reduced.
【００９８】また、本発明の真空断熱材は、吸着剤が生
石灰であることを特徴とする請求項１から４のいずれか
１項に記載の真空断熱材である。The vacuum heat insulating material of the present invention is the vacuum heat insulating material according to any one of claims 1 to 4, wherein the adsorbent is quicklime.
【００９９】従って、水分の吸着速度がシリカゲルやゼ
オライト等に比べ遅いので、吸着剤を密閉する缶を開封
後、芯材と共に外被材に挿入し、真空包装機にセットを
行う真空断熱材作製中において、大気中の水分を吸着す
るのを抑制できるため、吸着剤の劣化を防止することが
できる。[0099] Therefore, since the rate of adsorbing moisture is lower than that of silica gel or zeolite, etc., a canister for sealing the adsorbent is opened, and then inserted into a jacket material together with a core material, and set in a vacuum packaging machine. Since the adsorption of moisture in the air can be suppressed in the inside, the deterioration of the adsorbent can be prevented.
【０１００】更に、水分の吸着方法は化学吸着であり、
500℃を超えるような高温条件以外ではシリカゲルやゼ
オライト等の物理吸着剤のように一度吸着した水分を再
放出することが無いため、吸着剤からの水分再放出によ
る真空断熱材の真空度の上昇を防止できる。Further, the method of adsorbing water is chemisorption.
Except for high-temperature conditions exceeding 500 ° C, there is no re-release of water once adsorbed unlike physical adsorbents such as silica gel and zeolite. Can be prevented.
【０１０１】更に、化学吸着であるため、真空断熱材内
部のように水蒸気圧が極めて低い環境下おいても水分を
吸着することが可能である。Furthermore, because of chemical adsorption, moisture can be adsorbed even in an environment where the water vapor pressure is extremely low, such as inside a vacuum heat insulating material.
【０１０２】更に、酸化マグネシウム等の他の化学吸着
剤と比べて安価に入手可能である。Furthermore, it is available at a lower cost than other chemical adsorbents such as magnesium oxide.
【０１０３】また、本発明の保温保冷容器は、外箱と、
内箱と、前記外箱と前記内箱の空間部に配設された請求
項１から５のいずれか１項に記載の真空断熱材とから構
成されることを特徴とする保温保冷容器である。[0103] Further, the heat insulating and cooling container of the present invention comprises an outer box,
A heat insulation / cooling container comprising: an inner box; and the vacuum heat insulating material according to any one of claims 1 to 5 disposed in a space between the outer box and the inner box. .
【０１０４】これより、吸着剤の吸着性能劣化を防止
し、その吸着性能を維持することができるので、真空断
熱材は長期にわたり優れた断熱性能を有する。As a result, the adsorption performance of the adsorbent can be prevented from deteriorating and the adsorption performance can be maintained, so that the vacuum heat insulating material has excellent heat insulating performance for a long period of time.
【０１０５】従って、保冷保温容器の断熱性能は長期に
わたり優れた断熱性能を維持でき、使用期間の延長が図
れ経済的となる。Therefore, the heat insulation performance of the cool and heat insulating container can maintain excellent heat insulation performance over a long period of time, and the service period can be extended to be economical.
【０１０６】また、本発明の冷蔵庫は、外箱と、内箱
と、前記外箱と前記内箱によって形成される空間に充填
された発泡断熱材と、前記外箱または前記内箱の内壁に
取り付けられた請求項１から５のいずれか１項に記載の
真空断熱材とを備えた断熱箱体から構成されることを特
徴とする冷蔵庫である。Further, the refrigerator of the present invention comprises an outer box, an inner box, a foamed heat insulating material filled in a space formed by the outer box and the inner box, and an inner wall of the outer box or the inner box. A refrigerator comprising: a heat-insulating box provided with the vacuum heat-insulating material according to any one of claims 1 to 5.
【０１０７】これより、吸着剤の吸着性能劣化を防止
し、その吸着性能を維持することができるので、真空断
熱材は長期にわたり優れた断熱性能を有する。Thus, the adsorption performance of the adsorbent can be prevented from deteriorating and the adsorption performance can be maintained, so that the vacuum heat insulating material has excellent heat insulating performance over a long period of time.
【０１０８】従って、冷蔵庫の断熱性能は長期にわたり
優れた断熱性能を維持するため、従来と比較してより大
きな省エネ効果を挙げることができる。[0108] Accordingly, the heat insulation performance of the refrigerator maintains excellent heat insulation performance for a long period of time, so that a greater energy saving effect can be obtained as compared with the conventional case.
【０１０９】また、本発明の給湯器は、貯湯容器と、外
容器と、蓋体と、加熱器と、前記貯湯容器の外周部部に
配設された請求項１から５のいずれか１項に記載の真空
断熱材とを備えたことを特徴とする給湯器である。Further, the hot water supply device of the present invention is provided in any one of claims 1 to 5, which is disposed on an outer peripheral portion of the hot water storage container, the outer container, the lid, the heater, and the hot water storage container. And a vacuum heat insulating material according to (1).
【０１１０】これより、吸着剤の吸着性能劣化を防止
し、その吸着性能を維持することができるので、真空断
熱材は長期にわたり優れた断熱性能を有する。As a result, the adsorption performance of the adsorbent can be prevented from deteriorating and the adsorption performance can be maintained, so that the vacuum heat insulating material has excellent heat insulating performance over a long period of time.
【０１１１】従って、給湯器の断熱性能は長期にわたり
優れた断熱性能を維持するため、従来と比較してより大
きな省エネ効果を挙げることができる。Accordingly, the heat insulation performance of the water heater maintains excellent heat insulation performance for a long period of time, so that a greater energy saving effect can be obtained as compared with the conventional case.
【図１】本発明の一実施形態による真空断熱材の断面図FIG. 1 is a cross-sectional view of a vacuum heat insulating material according to an embodiment of the present invention.
【図２】本発明の一実施形態による真空断熱材の平面図FIG. 2 is a plan view of a vacuum heat insulating material according to an embodiment of the present invention.
【図３】図１に示した吸着剤＋包装材の拡大断面図FIG. 3 is an enlarged sectional view of the adsorbent and the packaging material shown in FIG.
【図４】本発明の一実施形態における保温保冷容器の斜
視図の一部を切り欠いた断面図FIG. 4 is a cross-sectional view with a part cut away of a perspective view of a heat insulating and cooling container according to an embodiment of the present invention.
【図５】本発明の一実施形態における冷蔵庫の斜視投影
図FIG. 5 is a perspective projection view of the refrigerator in one embodiment of the present invention.
【図６】本発明の一実施形態における給湯器の断面図FIG. 6 is a sectional view of a water heater according to an embodiment of the present invention.
１ 真空断熱材 ２ 芯材 ３ 外被材 ４ 吸着剤 ５ 包装材 ６ 耐水和紙層 ７ 微細孔 ８ ポリエチレン層 ９ 繊維層 １０ 保温保冷容器 １１ 本体 １２ 蓋 １３ 外箱 １４ 内箱 １５ 蓄冷剤 １６ 冷蔵庫 １７ 外箱 １８ 機械室 １９ 給湯器 ２０ 外容器 ２１ 貯湯容器 ２２ 蓋体 ２３ 加熱器 DESCRIPTION OF SYMBOLS 1 Vacuum heat insulating material 2 Core material 3 Outer covering material 4 Adsorbent 5 Packaging material 6 Hydration resistant paper layer 7 Micropore 8 Polyethylene layer 9 Fiber layer 10 Insulated cold container 11 Main body 12 Lid 13 Outer box 14 Inner box 15 Cold storage agent 16 Refrigerator 17 Outer box 18 Machine room 19 Water heater 20 Outer container 21 Hot water storage container 22 Lid 23 Heater
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｂ３２Ｂ 27/32 Ｂ３２Ｂ 27/32 Ｚ 29/00 29/00 Ｆターム(参考） 3H036 AA08 AA09 AB24 AB29 AC01 AE04 3L102 JA01 MA01 MA07 MB24 MB25 MB27 4B002 AA14 CA32 4D052 AA00 AA09 CA02 CA06 FA02 FA03 HA05 4F100 AA01A AA18B AA20 AB10 AG00 AK01C AK04B AK05 AK42 AK69 AT00A BA03 BA10A BA10C DC11B DD32B DG00B DG01A DG06A DG10B DG15A JB07B JD02C JD15B JJ02 Continuation of the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (reference) // B32B 27/32 B32B 27/32 Z 29/00 29/00 F term (reference) 3H036 AA08 AA09 AB24 AB29 AC01 AE04 3L102 JA01 MA01 MA07 MB24 MB25 MB27 4B002 AA14 CA32 4D052 AA00 AA09 CA02 CA06 FA02 FA03 HA05 4F100 AA01A AA18B AA20 AB10 AG00 AK01C AK04B AK05 AK42 AK69 AT00A BA03 BA10A BA10C DC11B DD32B DG00B DG00B DG00B DG00B DG00B
Claims (8)
剤と、ガスバリア性フィルムからなる外被材とからなる
真空断熱材において、前記吸着剤が、少なくとも撥水処
理を施している耐水性和紙層と微細孔を有しているポリ
エチレン層とを含む積層フィルムからなる包装材にて覆
われていることを特徴とする真空断熱材。1. A vacuum heat insulating material comprising a core material, an adsorbent for adsorbing at least moisture, and a covering material comprising a gas barrier film, wherein the adsorbent is at least water-repellent. A vacuum heat insulating material, wherein the vacuum heat insulating material is covered with a packaging material comprising a laminated film including a layer and a polyethylene layer having micropores.
剤と、ガスバリア性フィルムからなる外被材とからなる
真空断熱材において、前記吸着剤が、少なくとも撥水処
理を施している耐水性和紙層と微細孔を有しているポリ
エチレン層と繊維層とを含む積層フィルムからなる包装
材にて覆われていることを特徴とする真空断熱材。2. A vacuum heat insulating material comprising a core material, an adsorbent for adsorbing at least moisture, and a covering material comprising a gas barrier film, wherein the adsorbent is subjected to at least a water-repellent treatment. A vacuum heat insulating material, wherein the vacuum heat insulating material is covered with a packaging material comprising a laminated film including a layer, a polyethylene layer having fine pores, and a fiber layer.
くとも2層以上積層してなる芯材と、少なくとも水分を
吸着する吸着剤と、ガスバリア性フィルムからなる外被
材とからなる真空断熱材において、前記吸着剤が、少な
くとも撥水処理を施している耐水性和紙層と微細孔を有
しているポリエチレン層とを含む積層フィルムからなる
包装材にて覆われていることを特徴とする真空断熱材。3. A vacuum heat insulating material comprising a core material obtained by laminating at least two layers of a sheet-like molded body made of inorganic fibers, an adsorbent for adsorbing at least moisture, and a jacket material made of a gas barrier film. Wherein the adsorbent is covered with a packaging material comprising a laminated film including at least a water-resistant Japanese paper layer subjected to a water-repellent treatment and a polyethylene layer having micropores. Wood.
くとも2層以上積層してなる芯材と、少なくとも水分を
吸着する吸着剤と、ガスバリア性フィルムからなる外被
材とからなる真空断熱材において、前記吸着剤が、少な
くとも撥水処理を施している耐水性和紙層と微細孔を有
しているポリエチレン層とを含む積層フィルムからなる
包装材にて覆われており、前記芯材のシート間に配設さ
れていることを特徴とする真空断熱材。4. A vacuum heat insulating material comprising a core material obtained by laminating at least two layers of a sheet-like molded body made of inorganic fibers, an adsorbent for adsorbing at least moisture, and a jacket material made of a gas barrier film. The adsorbent is covered with a packaging material made of a laminated film including at least a water-resistant Japanese paper layer that has been subjected to a water-repellent treatment and a polyethylene layer having micropores, and between the sheets of the core material. A vacuum heat insulating material, which is disposed in
請求項１から４のいずれか１項に記載の真空断熱材。5. The vacuum heat insulating material according to claim 1, wherein the adsorbent is quicklime.
空間部に配設された請求項１から５のいずれか一項に記
載の真空断熱材とから構成される保温保冷容器。6. A heat insulator comprising an outer box, an inner box, and the vacuum heat insulating material according to claim 1 disposed in a space between the outer box and the inner box. Insulated container.
よって形成される空間に充填された発泡断熱材と、前記
外箱または前記内箱の内壁に取り付けられた請求項１か
ら５のいずれか一項に記載の真空断熱材とを備えた断熱
箱体から構成されることを特徴とする冷蔵庫。7. An outer box, an inner box, a foam insulating material filled in a space formed by the outer box and the inner box, and attached to an inner wall of the outer box or the inner box. A refrigerator comprising a heat-insulating box provided with the vacuum heat-insulating material according to any one of claims 1 to 5.
と、前記貯湯容器の外周部部に配設された請求項１から
５のいずれか一項に記載の真空断熱材とを備えた給湯
器。8. A hot water storage container, an outer container, a lid, a heater, and the vacuum heat insulating material according to claim 1 disposed on an outer peripheral portion of the hot water storage container. Water heater with.
Priority Applications (1)
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|---|---|---|---|
| JP2000238923A JP3507776B2 (en) | 2000-08-07 | 2000-08-07 | refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000238923A JP3507776B2 (en) | 2000-08-07 | 2000-08-07 | refrigerator |
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| Publication Number | Publication Date |
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| JP2002048466A true JP2002048466A (en) | 2002-02-15 |
| JP3507776B2 JP3507776B2 (en) | 2004-03-15 |
Family
ID=18730549
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000238923A Expired - Fee Related JP3507776B2 (en) | 2000-08-07 | 2000-08-07 | refrigerator |
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