JP3807568B2 - Aerosol container - Google Patents
Aerosol container Download PDFInfo
- Publication number
- JP3807568B2 JP3807568B2 JP12179797A JP12179797A JP3807568B2 JP 3807568 B2 JP3807568 B2 JP 3807568B2 JP 12179797 A JP12179797 A JP 12179797A JP 12179797 A JP12179797 A JP 12179797A JP 3807568 B2 JP3807568 B2 JP 3807568B2
- Authority
- JP
- Japan
- Prior art keywords
- aerosol container
- container
- valve cap
- agents
- contents
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000443 aerosol Substances 0.000 title claims description 44
- 229920001230 polyarylate Polymers 0.000 claims description 13
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 12
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 230000009477 glass transition Effects 0.000 claims description 8
- -1 polyethylene terephthalate Polymers 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 239000005356 container glass Substances 0.000 claims 1
- 239000000047 product Substances 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 9
- 239000002917 insecticide Substances 0.000 description 7
- 239000003915 liquefied petroleum gas Substances 0.000 description 7
- 239000002781 deodorant agent Substances 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000001166 anti-perspirative effect Effects 0.000 description 3
- 239000003213 antiperspirant Substances 0.000 description 3
- 238000000071 blow moulding Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000003205 fragrance Substances 0.000 description 3
- 239000003380 propellant Substances 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002453 shampoo Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- FFJCNSLCJOQHKM-CLFAGFIQSA-N (z)-1-[(z)-octadec-9-enoxy]octadec-9-ene Chemical compound CCCCCCCC\C=C/CCCCCCCCOCCCCCCCC\C=C/CCCCCCCC FFJCNSLCJOQHKM-CLFAGFIQSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241001674044 Blattodea Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000000895 acaricidal effect Effects 0.000 description 1
- 239000000642 acaricide Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229940121363 anti-inflammatory agent Drugs 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003788 bath preparation Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000007854 depigmenting agent Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000118 hair dye Substances 0.000 description 1
- 239000008266 hair spray Substances 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000001024 permanent hair color Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000008257 shaving cream Substances 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000475 sunscreen effect Effects 0.000 description 1
- 239000000516 sunscreening agent Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- BWMISRWJRUSYEX-SZKNIZGXSA-N terbinafine hydrochloride Chemical compound Cl.C1=CC=C2C(CN(C\C=C\C#CC(C)(C)C)C)=CC=CC2=C1 BWMISRWJRUSYEX-SZKNIZGXSA-N 0.000 description 1
- 229960000233 throat preparations Drugs 0.000 description 1
- 201000004647 tinea pedis Diseases 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/38—Details of the container body
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Nozzles (AREA)
- Cosmetics (AREA)
Description
【0001】
【発明の属する技術分野】
【従来の技術】
従来のエアゾール容器の開口部にバルブキヤツプを嵌合させた構造としては、例えば図2(A)の断面図が示すようなものがある。この構造は、容器本体1の首部2に環状凹所3を形成し、バルブ4の容器内に延長するバルブハウジング5をシール体6により気密に支持したバルブキヤツプ7を上記首部2に嵌着し、該バルブキヤツプ7の下端部8を前記凹所3に絞り込んだものである(例えば特開昭63−76993号)。なお、このようなエアゾール容器にあっては、容器自体に高い耐圧効果を要求するため、一般に、ポリエチレンテレフタレート等の樹脂が単体で使用されている。
【0002】
【発明が解決しようとする課題】
しかし、かかるエアゾール容器は、容器自体の耐圧効果だけを考慮しているため、バルブキヤツプ係合力よりも容器自体の耐圧効果を向上させ、該エアゾール容器を炎天下に駐車された自動車内等に放置した場合、容器自体の破裂は起こらずに容器本体から内容物の噴出と共にバルブキヤツプが暴発的に飛び出してしまうという課題があった。
【0003】
本発明は、容器自体の従来の耐圧性を保持しつつ、かかる課題を解決することを目的とし、エアゾール容器内の圧力が上昇してもバルブキヤツプ及び内容物を暴発的に容器外に飛散させないエアゾール容器を提供することにある。
【0004】
【課題を解決するための手段】
すなわち、本発明は、エアゾール容器の開口部にバルブキヤツプを係合させたエアゾール容器において、該エアゾール容器の素材のガラス転移温度を74〜100℃にしたことを特徴とするエアゾール容器である。
【0005】
本発明におけるエアゾール容器は、上記課題を解決するために、その内部圧力が内容物を暴発させる程度にまで近づくと、該エアゾール容器自体を膨張させてその内部圧力を下げて回避するものである。かかる作用を発揮させるためには、エアゾール容器の素材の上記ガラス転移温度を74〜100℃、さらに好ましくは75〜85℃に設定するのが良い。このガラス転移温度は、あまりに低いと容器自体が簡易に膨張してしまい、あまりに高いと容器自体が硬くて膨張しないため、上記範囲にするのがよい。
【0006】
また、かかるエアゾール容器を形成する素材としては上記ガラス転移温度を有するものを適宜選択して採用でき、例えばPET(ポリエチレンテレフタレート)とPAr(ポリアリレート)との混合体等がある。なお、PETとポリアリレートの配合比は、PET:ポリアリレートの重量%の比で60:40〜95:5が好ましく、さらに好ましくは80:20〜95:5の重量%が良い。このような比でポリエチレンテレフタレートとポリアリレートを混合するのは、ポリアリレートがあまりに少ないとエアゾール容器と上記バルブキャップの係合力が弱くなり、あまりに多いと容器自体が膨張しづらくなり耐圧性の低い底部が破裂するからである。
【0007】
また、本発明にかかるエアゾール容器の成型方法としては、二軸延伸ブロー成形や、開口部周辺のバルブキヤツプ係合部位を無延伸インジエクシヨン成型で形成し内容物を充填する胴部をストレツチブロー成型する方法等がある。かかるストレツチブロー成型にあっては、前記胴部の縦延伸を1.00〜1.15倍、横延伸を1.90〜2.20倍の低延伸に抑えることにより、内容物の温度上昇に伴う高圧下で容器を変形膨張及び薄肉化させて内圧を下げることができる。
【0008】
なお、本発明にかかるエアゾール容器に充填することのできる内容物としては、従来公知のものを採用できる。該内容物としては、例えば人体用品、家庭用品、工業用品があり、人体用品には頭髪用品、化粧品、消臭・制汗剤、その他の人体用品があり、家庭用品には殺虫剤、コーテイング剤、クリーナ、食品、その他の家庭用品があり、工業用品には自動車用品、その他の工業用品がある。上記頭髪用品としてはヘアセツトスプレー、ヘアドレツサーコンデイシヨナー、ヘアシヤンプー、リンス、酸性染毛剤、酸化型2剤タイプ永久染毛剤、カラースプレー、脱色剤、パーマ剤、育毛剤等がある。化粧品としてはシエービングクリーム、アフターシエーブローシヨン、香水、オーデコロン、洗顔料、日焼け止め、フアンデーシヨン、脱毛・脱色剤、浴用剤、歯磨き剤等がある。消臭・制汗剤としては消臭剤、制汗剤、ボデイシヤンプー等がある。その他の人体用品としては筋肉消炎剤、皮膚疾患剤、水虫薬、その他の医薬品、害虫忌避剤、冷却剤、清拭剤、口喉剤等がある。殺虫剤としては空間殺虫剤、ゴキブリ殺虫剤、園芸用殺虫剤、殺ダニ剤、不快害虫剤等がある。コーテイング剤としては家庭用塗料、自動車用塗料、アンダーコーテイング剤等がある。クリーナとしては家庭用ガラスクリーナ、レンズクリーナ、絨毯クリーナ、浴用クリーナ、床・家具艶だしクリーナ、靴・皮革クリーナ、ワツクス艶だし剤等がある。その他の家庭用品としては室内消臭剤、トイレ用消臭剤、防水剤、洗濯糊、除草剤、衣類用防虫剤、防炎剤等がある。自動車用品としては防曇剤、解氷剤、エンジン始動液、パンク修理液、エンジンクリーナ等がある。その他の工業用品としては潤滑防錆剤、接着剤、金属深傷剤、離型剤等がある。
【0009】
上記内容物の形状としては液状、流動体状、半流動体状、発泡体状、気体状の他、これら形状のものに粉体状や粒状の固体を少し混ぜたもの等、適宜選択して採用することができる。
【0010】
該素材にあっては従来内容物として採用される公知のものを採用でき、例えば上記ヘアスプレーであれば変性アルコール、噴射剤としてのLPG(液化石油ガス)を主成分とし、アクリル樹脂アルカノールアミン液、ポリオキシエチレンオレイルエーテル、香料等を添加したものがあり、上記ヘアトリートメントであれば変性アルコール、噴射剤としてのLPGを主成分とし、流動パラフイン、プロピレングリコール、メチルフエニルポリシロキサン、香料を添加したものがある。
【0011】
また、他の内容物としては、アルコール、合成樹脂、噴射剤(LPG(液化石油ガス、DME(ジメチルエーテル)、N2、CO2等の単体又はこれらの混合物)、セルロース、アンモニウム、水、香料、染料、界面活性剤、顔料等を適宜選択して追加することができる。
【0012】
【発明の実施の形態】
本発明にあっては、エアゾール容器の開口部にバルブキヤツプを係合させたエアゾール容器において、該エアゾール容器の素材のガラス転移温度を74〜100℃にし、これにより、容器自体の従来の耐圧性を保持しつつ、エアゾール容器内の圧力が上昇してもバルブキヤツプ及び内容物を暴発的に容器外に飛散させない。
【0013】
【実施例】
以下に、本発明にかかる実施例を、図及び表を参照しつつ詳細に説明する。図1は、本発明の実施例、比較例におけるエアゾール容器自体の正面図を模式的に示した説明図である。
【0014】
この図1に示したエアゾール容器は、内容量97ミリリツトル、目付重量30グラムのものであり、符号10はエアゾール容器の開口部を形成すると共に図示外のバルブキヤツプを係合させるための係合部であり、符号11は内容物を保持するための胴部である。該エアゾール容器は、PET(ポリエチレンテレフタレート)とPAr(ポリアリレート)を表1の配合比で混練した後、二軸延伸ブロー成形により形成したものである。
【0015】
表1で「80℃昇温評価」は、エアゾール容器内に充填する内容物をLPG(液化石油ガス)を含む水系内容液(常温(約25℃)、内圧6kg/cm2)とし、炎天下に駐車した自動車内を想定し、外気温度を常温(約25℃)から昇温させ、80℃に到達した後、80℃を8時間維持し、エアゾール容器開口部の周辺に位置する係合部が破壊されたかどうかを目視で評価したものである。なお、かかる評価にあっては図2(A)で開示したバルブキヤツプを採用した。
【0016】
【表1】
【0017】
この表1が示すように、PET:PArの重量%の比で60:40〜95:5としたときには上記係合部は破壊されず、容器の破裂もなかった。また、ポリアリレートの比を50%にしたときには(比較例2)、耐圧性の悪い容器底部が破裂してしまった。
【0018】
次に、上記比較例1及び上記実施例1における配合比で製造されたエアゾール容器に同じ内容物(内圧6kg/cm2)を充填して、外気温度(昇温したときの外気の温度)を上げたときの、気相温度(エアゾール容器内の気体の温度)、液相温度(エアゾール容器内の内容液の温度)、内圧(該エアゾール容器内部の圧力)及び係合部評価(係合部が破壊されたかどうかの目視評価)を表2に示す。
【0019】
【表2】
【0020】
表2が示すように、ポリエチレンテレフタレートにポリアリレートを配合することにより、気相温度71℃、内圧12〜13kg/cm2であっても係合部が破壊されなかった。これは、内圧が14kg/cm2を越えたあたりから容器自体が膨張・薄肉化し、内圧を減少させたためである。
【0021】
【発明の効果】
本発明にあっては、エアゾール容器の開口部にバルブキヤツプを係合させたエアゾール容器において、該エアゾール容器の素材のガラス転移温度を74〜100℃にし、これにより、容器自体の従来の耐圧性を保持しつつ、エアゾール容器内の圧力が上昇してもバルブキヤツプ及び内容物を暴発的に容器外に飛散させないという効果を有する。
【図面の簡単な説明】
【図1】本発明の実施例、比較例におけるエアゾール容器自体の正面図を模式的に示した説明図である。
【図2】(A)は従来のエアゾール容器の開口部における周辺の縦断面を一部拡大した説明図であリ、(B)は(A)のエアゾール容器の縦断面を模式的に示した説明図である。
【符号の説明】
10 係合部
11 胴部[0001]
BACKGROUND OF THE INVENTION
[Prior art]
As a structure in which a valve cap is fitted to an opening of a conventional aerosol container, for example, there is a structure as shown in the cross-sectional view of FIG. In this structure, an
[0002]
[Problems to be solved by the invention]
However, since such an aerosol container considers only the pressure resistance effect of the container itself, the pressure resistance effect of the container itself is improved over the valve cap engaging force, and the aerosol container is left in a car parked under a hot sun or the like. In such a case, there has been a problem that the valve cap bursts out of the container body and the contents are ejected without bursting the container itself.
[0003]
The present invention aims to solve such problems while maintaining the conventional pressure resistance of the container itself, and prevents the valve cap and contents from splashing out of the container even if the pressure in the aerosol container rises. It is to provide an aerosol container.
[0004]
[Means for Solving the Problems]
That is, the present invention is an aerosol container characterized in that a glass transition temperature of a material of the aerosol container is 74 to 100 ° C. in an aerosol container in which a valve cap is engaged with an opening of the aerosol container.
[0005]
In order to solve the above-described problems, the aerosol container according to the present invention avoids the aerosol container by expanding the aerosol container itself and lowering the internal pressure when the internal pressure approaches the level of causing the contents to explode. In order to exert such an action, the glass transition temperature of the material of the aerosol container is preferably set to 74 to 100 ° C, more preferably 75 to 85 ° C. If the glass transition temperature is too low, the container itself easily expands. If the glass transition temperature is too high, the container itself is hard and does not expand.
[0006]
In addition, as a material for forming such an aerosol container, a material having the above glass transition temperature can be appropriately selected and employed, for example, a mixture of PET (polyethylene terephthalate) and PAr (polyarylate). The blending ratio of PET and polyarylate is preferably 60:40 to 95: 5, more preferably 80:20 to 95: 5, in terms of the weight ratio of PET: polyarylate. Polyethylene terephthalate and polyarylate are mixed in such a ratio. If the polyarylate is too small, the engagement force between the aerosol container and the valve cap becomes weak, and if it is too large, the container itself is difficult to expand and the bottom portion with low pressure resistance Because it bursts.
[0007]
In addition, as a method for molding an aerosol container according to the present invention, a biaxial stretch blow molding or a valve cap engaging portion around the opening is formed by non-stretching injection molding, and a body portion filled with contents is stretch blow molded. There are ways to do this. In such stretch blow molding, the temperature of the contents is increased by suppressing the longitudinal stretching of the body portion to a low stretching of 1.00 to 1.15 times and the lateral stretching of 1.90 to 2.20 times. The internal pressure can be lowered by deforming, expanding and thinning the container under high pressure.
[0008]
In addition, a conventionally well-known thing can be employ | adopted as a content which can be filled into the aerosol container concerning this invention. Examples of the contents include human body products, household products, and industrial products. Human body products include hair products, cosmetics, deodorants and antiperspirants, and other human products. Household products include insecticides and coating agents. , Cleaners, foods, and other household items, and industrial items include automotive items and other industrial items. The above hair products include hair set sprays, hair dresser conditioners, hair shampoos, rinses, acidic hair dyes, oxidized two-part permanent hair dyes, color sprays, depigmenting agents, permanent agents, hair restorers, etc. is there. Cosmetics include shaving cream, after-shave broth, perfume, eau de cologne, face wash, sunscreen, foundation, hair removal / bleaching agent, bath preparation, toothpaste and the like. Examples of the deodorant / antiperspirant include deodorants, antiperspirants and body shampoos. Other human body products include muscle anti-inflammatory agents, skin disease agents, athlete's foot drugs, other pharmaceuticals, pest repellents, cooling agents, wiping agents, and throat preparations. Examples of insecticides include space insecticides, cockroach insecticides, horticultural insecticides, acaricides, and unpleasant insecticides. Coating agents include household paints, automotive paints, undercoating agents and the like. Examples of cleaners include household glass cleaners, lens cleaners, carpet cleaners, bath cleaners, floor / furniture polish cleaners, shoe / leather cleaners, and wax polishes. Other household products include indoor deodorants, toilet deodorants, waterproofing agents, laundry glue, herbicides, clothing insecticides, flameproofing agents, and the like. Automobile products include anti-fogging agents, anti-icing agents, engine starting liquids, puncture repair liquids, engine cleaners, and the like. Other industrial products include lubricating rust preventives, adhesives, metal deep scratch agents, mold release agents and the like.
[0009]
As the shape of the above-mentioned contents, in addition to liquid, fluid, semi-fluid, foam, gas, etc., these powders and powders or granular solids may be selected as appropriate. Can be adopted.
[0010]
As the material, known materials that are conventionally used as contents can be used. For example, in the case of the hair spray, modified alcohol, LPG (liquefied petroleum gas) as a propellant is the main component, and an acrylic resin alkanolamine solution. , Polyoxyethylene oleyl ether, fragrance, etc. are added. For the above hair treatment, modified alcohol, LPG as propellant is the main component, and fluid paraffin, propylene glycol, methylphenyl polysiloxane, fragrance are added. There is what I did.
[0011]
Other contents include alcohol, synthetic resin, propellant (LPG (liquefied petroleum gas, DME (dimethyl ether), N 2 , CO 2 or the like alone or a mixture thereof), cellulose, ammonium, water, fragrance, A dye, a surfactant, a pigment and the like can be appropriately selected and added.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, in the aerosol container in which a valve cap is engaged with the opening of the aerosol container, the glass transition temperature of the material of the aerosol container is set to 74 to 100 ° C., thereby the conventional pressure resistance of the container itself. Even if the pressure in the aerosol container rises, the valve cap and contents are not splashed out of the container.
[0013]
【Example】
Embodiments according to the present invention will be described below in detail with reference to the drawings and tables. FIG. 1 is an explanatory view schematically showing a front view of an aerosol container itself in Examples and Comparative Examples of the present invention.
[0014]
The aerosol container shown in FIG. 1 has an internal capacity of 97 milliliters and a weight per unit area of 30 grams.
[0015]
In Table 1, “Evaluation of temperature rise at 80 ° C.” indicates that the content to be filled in the aerosol container is an aqueous content liquid (normal temperature (about 25 ° C.), internal pressure 6 kg / cm 2 ) containing LPG (liquefied petroleum gas). Assuming the inside of a parked automobile, the outside air temperature is raised from room temperature (about 25 ° C.), and after reaching 80 ° C., 80 ° C. is maintained for 8 hours, and the engaging portion located around the aerosol container opening is This is a visual evaluation of whether or not it was destroyed. In this evaluation, the valve cap disclosed in FIG. 2A was adopted.
[0016]
[Table 1]
[0017]
As shown in Table 1, when the weight ratio of PET: PAr was 60:40 to 95: 5, the engaging portion was not broken and the container was not ruptured. When the polyarylate ratio was 50% (Comparative Example 2), the bottom of the container with poor pressure resistance was ruptured.
[0018]
Next, the same contents (internal pressure 6 kg / cm 2 ) are filled in the aerosol containers manufactured at the blending ratios in Comparative Example 1 and Example 1, and the outside air temperature (the temperature of the outside air when the temperature is raised) is set. Gas phase temperature (temperature of the gas in the aerosol container), liquid phase temperature (temperature of the content liquid in the aerosol container), internal pressure (pressure inside the aerosol container), and engagement portion evaluation (engagement portion) when raised Table 2 shows the visual evaluation of whether or not is destroyed.
[0019]
[Table 2]
[0020]
As Table 2 shows, by blending polyarylate with polyethylene terephthalate, the engaging portion was not broken even at a gas phase temperature of 71 ° C. and an internal pressure of 12 to 13 kg / cm 2 . This is because the container itself was expanded and thinned from when the internal pressure exceeded 14 kg / cm 2 , and the internal pressure was reduced.
[0021]
【The invention's effect】
In the present invention, in the aerosol container in which a valve cap is engaged with the opening of the aerosol container, the glass transition temperature of the material of the aerosol container is set to 74 to 100 ° C., thereby the conventional pressure resistance of the container itself. Even if the pressure in the aerosol container rises, the valve cap and contents are not sporadically scattered outside the container.
[Brief description of the drawings]
FIG. 1 is an explanatory view schematically showing a front view of an aerosol container itself in Examples and Comparative Examples of the present invention.
FIGS. 2A and 2B are explanatory views in which a peripheral longitudinal section in the opening of a conventional aerosol container is partially enlarged, and FIG. 2B schematically shows a longitudinal section of the aerosol container of FIG. It is explanatory drawing.
[Explanation of symbols]
10 engaging
Claims (1)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12179797A JP3807568B2 (en) | 1997-04-24 | 1997-04-24 | Aerosol container |
EP19980107302 EP0873946B1 (en) | 1997-04-24 | 1998-04-22 | Aerosol container |
DE1998601022 DE69801022T2 (en) | 1997-04-24 | 1998-04-22 | Aerosol container |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12179797A JP3807568B2 (en) | 1997-04-24 | 1997-04-24 | Aerosol container |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10297686A JPH10297686A (en) | 1998-11-10 |
JP3807568B2 true JP3807568B2 (en) | 2006-08-09 |
Family
ID=14820163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12179797A Expired - Lifetime JP3807568B2 (en) | 1997-04-24 | 1997-04-24 | Aerosol container |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0873946B1 (en) |
JP (1) | JP3807568B2 (en) |
DE (1) | DE69801022T2 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2784081B1 (en) * | 1998-10-06 | 2000-12-01 | Oreal | AEROSOL DISPENSER COMPRISING A SPHERICAL TANK IN PLASTIC MATERIAL |
DE10031136A1 (en) * | 1999-07-01 | 2001-01-04 | Wella Ag | Pressurized gas container for dispensing hair dyes is of blow-molded polyethylene terephthalate or polyethylene naphthalate with specified dimensions to give high strength |
FR2877926B1 (en) * | 2004-11-16 | 2007-01-26 | Oreal | PRESSURIZED DEVICE FOR HAIRSTAPING CAPILLARY FIBERS AND USE OF SUCH A DEVICE FOR THE SHAPING AND / OR CARE OF CAPILLARY FIBERS. |
US20070292641A1 (en) | 2006-06-16 | 2007-12-20 | Gene Michael Altonen | Non-round plastic pressurized dispenser |
EP2570190A1 (en) | 2011-09-15 | 2013-03-20 | Braun GmbH | Spray nozzle for dispensing a fluid and sprayer comprising such a spray nozzle |
CN104780895A (en) | 2013-06-28 | 2015-07-15 | 宝洁公司 | Aerosol hairspray product comprising a spraying device |
FR3019803B1 (en) * | 2014-04-10 | 2016-12-23 | Fareva | AEROSOL GENERATOR OF PLASTIC MATERIAL |
JP2018521726A (en) | 2015-06-01 | 2018-08-09 | ザ プロクター アンド ギャンブル カンパニー | Aerosol hair spray product with spray device |
CH712902A1 (en) * | 2016-09-12 | 2018-03-15 | Alpla Werke Alwin Lehner Gmbh & Co Kg | Internal pressure resistant plastic container, in particular plastic aerosol container. |
KR102085477B1 (en) * | 2019-04-22 | 2020-03-05 | 필립산업(주) | Vessel for bov |
US12128118B2 (en) | 2021-07-29 | 2024-10-29 | The Procter & Gamble Company | Aerosol dispenser containing a hairspray composition and a nitrogen propellant |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6376993A (en) * | 1986-09-19 | 1988-04-07 | Toyo Seikan Kaisha Ltd | Body structure of pressure container and manufacture thereof |
JP2562343B2 (en) * | 1988-02-23 | 1996-12-11 | 北海製罐株式会社 | Aerosol container and aerosol product |
FR2743356B1 (en) * | 1996-01-10 | 1998-02-13 | Oreal | LIQUID CONSISTENCY PRODUCT DEVICE WITH PASTE COMPRISING A SECURITY DEVICE |
-
1997
- 1997-04-24 JP JP12179797A patent/JP3807568B2/en not_active Expired - Lifetime
-
1998
- 1998-04-22 EP EP19980107302 patent/EP0873946B1/en not_active Expired - Lifetime
- 1998-04-22 DE DE1998601022 patent/DE69801022T2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH10297686A (en) | 1998-11-10 |
EP0873946B1 (en) | 2001-07-04 |
DE69801022T2 (en) | 2001-11-15 |
EP0873946A1 (en) | 1998-10-28 |
DE69801022D1 (en) | 2001-08-09 |
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