JP2000351652A - Glass container and its production - Google Patents
Glass container and its productionInfo
- Publication number
- JP2000351652A JP2000351652A JP15953599A JP15953599A JP2000351652A JP 2000351652 A JP2000351652 A JP 2000351652A JP 15953599 A JP15953599 A JP 15953599A JP 15953599 A JP15953599 A JP 15953599A JP 2000351652 A JP2000351652 A JP 2000351652A
- Authority
- JP
- Japan
- Prior art keywords
- thermoplastic resin
- glass container
- film layer
- thin film
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/003—General methods for coating; Devices therefor for hollow ware, e.g. containers
- C03C17/005—Coating the outside
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Surface Treatment Of Glass (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガラス容器とその
製造方法に関し、更に詳しくは側壁部に、熱可塑性樹脂
薄膜層を形成されたガラス容器及びその製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass container and a method for manufacturing the same, and more particularly, to a glass container having a thermoplastic resin thin film layer formed on a side wall and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】ガラス瓶のようなガラス容器は、ISマシ
ン等の成形セクションにおいて金型で成形された後、徐
冷炉の入口側でホットエンド・コーティング処理によっ
て表面に酸化錫や酸化チタン等の硬い無機物薄膜を形成
された後、徐冷炉の出口側で、スプレー法（特公昭５９
−１２２５号公報）、静電塗布法（特開昭４９−５７９
９１号公報）、粉末流動床浸漬法（特開昭５２−１０１
２２２号公報）あるいは弾力性多孔質材密着法（特開平
１−１９２７４８号公報）等のコールドエンド・コーテ
ィング処理によって、界面活性剤、ワックス、あるいは
ポリエチレン等の熱可塑性樹脂等の有機物被膜を形成さ
れる。コールドエンド・コーティング処理を行うのは、
表面に潤滑性を与えて、コンベア等で搬送中にガラス容
器が互いに当たった時の擦り傷発生を防止し、また擦り
傷に基づく破壊（破瓶）を防ぐためである。2. Description of the Related Art A glass container such as a glass bottle is formed by a metal mold in a forming section of an IS machine or the like, and a hard inorganic material such as tin oxide or titanium oxide is formed on a surface thereof by a hot end coating process at an inlet side of an annealing furnace. After the thin film is formed, a spray method (Japanese Patent Publication No.
-1225), an electrostatic coating method (JP-A-49-579).
No. 91), a powder fluidized bed immersion method (JP-A-52-101).
No. 222) or a cold-end coating treatment such as an elastic porous material adhesion method (JP-A-1-192748) forms an organic film such as a surfactant, a wax, or a thermoplastic resin such as polyethylene. You. The cold end coating process is performed
This is for imparting lubricity to the surface to prevent the occurrence of abrasion when the glass containers come into contact with each other while being conveyed by a conveyor or the like, and to prevent destruction (broken bottle) due to the abrasion.
【０００３】従来のコールドエンド・コーティング処理
によって形成された有機物被膜は、ほぼ均一で、かつ連
続していた（例えば特開昭５２−１０１２２２号公報、
特公昭５９−１２２５号公報、特開平１−１９２７４８
号公報参照）。そのためラベルが貼れないか、貼れても
剥がれ易くなる。前記の有機物被膜は、ラベルの糊（通
常は澱粉糊）との接着性が無いか、若しくは乏しいから
である。そのためポリエチレン膜をフレーム処理する
（特開昭４９−５７９９１号公報参照）等の特殊処理が
提案されているが、こらはコスト高を招き、かつ非効率
である。また安価な糊の代わりに特殊の合成接着剤を使
用すればラベルの貼着性は向上するが、コスト高を招
く。なおポリエチレン等の有機物被膜は、酸化錫膜層等
との付着性は良好である。The organic film formed by the conventional cold-end coating process is almost uniform and continuous (for example, Japanese Patent Application Laid-Open No. 52-101222,
JP-B-59-1225, JP-A-1-192748
Reference). Therefore, the label cannot be stuck or is easily peeled even if stuck. This is because the organic film has no or poor adhesion to the label paste (usually starch paste). For this reason, special treatments such as frame treatment of the polyethylene film (see Japanese Patent Application Laid-Open No. 49-57991) have been proposed, but these increase the cost and are inefficient. Also, if a special synthetic adhesive is used instead of inexpensive glue, the sticking property of the label is improved, but the cost is increased. An organic film such as polyethylene has good adhesion to a tin oxide film layer or the like.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、搬送中等に
おける側壁部の擦り傷の発生が防止され、かつラベルを
糊で確実に貼着することが可能な、側壁部に熱可塑性樹
脂薄膜層を形成されたガラス容器及びその製造方法を提
供することを目的とする。SUMMARY OF THE INVENTION According to the present invention, there is provided a thermoplastic resin thin film layer on a side wall portion which prevents abrasion of the side wall portion during transportation or the like and allows a label to be securely adhered with glue. It is an object to provide a formed glass container and a method for manufacturing the same.
【０００５】[0005]
【課題を解決するための手段】本発明のガラス容器は、
側壁部の表面に、熱可塑性樹脂薄膜層が島状に分布して
いることを特徴とする（請求項１）。ガラス容器として
は、ガラス瓶やガラス・コップ等が例示される。ガラス
瓶の場合、側壁部は、胴壁部、肩部および首部を含む。
熱可塑性樹脂としては、比較的低分子量（例えば１５０
０〜５０００、好ましくは１５００〜２０００）のポリ
エチレン樹脂（ポリエチレンを主成分とするコポリマー
を含む）が好ましく用いられる。界面活性剤によって水
分散液となり易く、かつ廉価で潤滑性に富むからであ
る。The glass container of the present invention comprises:
The thermoplastic resin thin film layer is distributed in an island shape on the surface of the side wall portion (claim 1). Examples of the glass container include a glass bottle and a glass cup. In the case of a glass bottle, the side wall includes a body wall, a shoulder, and a neck.
As the thermoplastic resin, a relatively low molecular weight (for example, 150
0-5000, preferably 1500-2000) polyethylene resin (including a copolymer containing polyethylene as a main component) is preferably used. This is because the surfactant easily becomes an aqueous dispersion, and is inexpensive and rich in lubricity.
【０００６】側壁部の表面に、熱可塑性樹脂薄膜層が島
状に分布しているので、ガラス容器同士が側壁部のどの
箇所で当たっても擦り傷が生じ難い。従って擦り傷と衝
撃に基づく破壊が起こり難い。熱可塑性樹脂薄膜層が島
状であるので、熱可塑性樹脂薄膜層は不連続であり、側
壁部表面には、熱可塑性樹脂薄膜層で被覆されない部分
があり、この部分はホットエンド・コーティング処理に
よって形成された酸化錫等の硬い無機物薄膜が露出して
いる。これらの無機物薄膜は澱粉糊のような通常の（水
性）糊と親和性があり、従って糊によってラベルが貼着
し易い。Since the thermoplastic resin thin film layer is distributed in an island shape on the surface of the side wall, scratches are unlikely to occur even if the glass containers hit each other at any part of the side wall. Therefore, destruction based on abrasion and impact hardly occurs. Since the thermoplastic resin thin film layer is island-shaped, the thermoplastic resin thin film layer is discontinuous, and there is a portion on the side wall surface that is not covered with the thermoplastic resin thin film layer. The formed hard inorganic thin film such as tin oxide is exposed. These inorganic thin films have an affinity for ordinary (aqueous) pastes such as starch pastes, and therefore, labels are easily attached by the pastes.
【０００７】側壁部の表面に熱可塑性樹脂薄膜層が、島
状に分布していて、複数の島状部、または複数の島状部
および島状部の集合体よりなり、熱可塑性樹脂薄膜層の
側壁部の表面における被覆率が３〜６０％であるガラス
容器であることが好ましい（請求項２）。被覆率が３％
より小さいと、無機物薄膜が露出している部分が大きく
なり、ガラス容器同士が当たった時、擦り傷が発生し易
いので好ましくない。一方被覆率が６０％を越えると、
無機物薄膜が露出している部分が小さくなり、ラベルの
糊による貼着が困難になるので好ましくない。The thermoplastic resin thin film layer is distributed in the form of islands on the surface of the side wall, and is composed of a plurality of islands or an aggregate of a plurality of islands and islands. It is preferable that the glass container has a coverage of 3 to 60% on the surface of the side wall portion (claim 2). 3% coverage
If it is smaller, the portion where the inorganic thin film is exposed becomes large, and when the glass containers hit each other, abrasion is likely to occur, which is not preferable. On the other hand, if the coverage exceeds 60%,
The portion where the inorganic thin film is exposed becomes small, which makes it difficult to apply the label with glue, which is not preferable.
【０００８】側壁部の表面に熱可塑性樹脂薄膜層が、島
状に分布していて、複数の島状部、または複数の島状部
および島状部の集合体よりなり、熱可塑性樹脂薄膜層の
側壁部の表面における被覆率が３〜６０％であり、島状
部および集合体の最大径の中の、最大値が１０〜３００
μｍであるガラス容器であることが好ましい（請求項
３）。島状部は通常楕円形状をしている。島状部の集合
体は、通常複数の楕円形状の部分が局部的に重なって集
まった形状をしている。島状部および集合体の輪郭は、
厚さ０．０１μｍ以上の部分によって形成される。最大
径とは、輪郭の中の最も間隔が大きい２点間の長さによ
って定義される。島状部または集合体の最大径（最大長
さ）の、最大値が１０μｍより小さいと、熱可塑性樹脂
薄膜層が潤滑剤としての機能を果たさないので、擦り傷
が発生し易いので、好ましくない。一方島状部または集
合体の最大径（最大長さ）の、最大値が３００μｍを越
えると、ラベルが貼り難く、汚れやすいため好ましくな
い。The thermoplastic resin thin film layer is distributed in an island shape on the surface of the side wall, and is composed of a plurality of islands or an aggregate of a plurality of islands and islands. Is 3 to 60% on the surface of the side wall portion, and the maximum value among the maximum diameters of the island portion and the aggregate is 10 to 300%.
It is preferably a glass container having a size of μm (claim 3). The islands are usually elliptical. The aggregate of island-shaped portions usually has a shape in which a plurality of elliptical portions are locally overlapped and gathered. The contours of the islands and aggregates are
It is formed by a portion having a thickness of 0.01 μm or more. The maximum diameter is defined by the length between two points having the largest interval in the contour. If the maximum value of the maximum diameter (maximum length) of the island portion or the aggregate is smaller than 10 μm, the thermoplastic resin thin film layer does not function as a lubricant, so that abrasion easily occurs, which is not preferable. On the other hand, if the maximum value of the maximum diameter (maximum length) of the island-shaped portion or the aggregate exceeds 300 μm, it is not preferable because the label is difficult to stick and easily stained.
【０００９】本発明の、側壁部の表面に、熱可塑性樹脂
薄膜層が島状に分布しているガラス容器は、成形、酸化
錫等の無機物薄膜のホットエンド・コーティングおよび
徐冷した直後の、コールドエンド・コーティングの工程
において、熱可塑性樹脂の含有率が０．０５〜１重量％
である熱可塑性樹脂の水分散液を、平均粒径が10〜３０
μｍの噴霧状にして、側壁部に１〜３回スプレーするこ
とによって製造される（請求項４）。The glass container of the present invention in which the thermoplastic resin thin film layer is distributed in the shape of an island on the surface of the side wall portion is formed immediately after molding, hot-end coating of an inorganic thin film such as tin oxide, and gradual cooling. In the cold end coating process, the content of the thermoplastic resin is 0.05 to 1% by weight.
Aqueous dispersion of a thermoplastic resin having an average particle size of 10 to 30
It is manufactured by spraying 1 to 3 times on the side wall portion in the form of a spray of μm (claim 4).
【００１０】ホットエンド・コーティングは通常、成形
後のガラス容器が約４００〜５００℃の時に、錫やチタ
ン等の金属塩化物（例えばSnCl）を表面に吹き付け、ガ
ラス中のナトリウム（Na）と塩素を反応させて、容器表
面にSnO等の金属酸化物薄膜を形成すると同時に、NaCl
を生成させることによって行われる。[0010] Hot-end coating is usually performed by spraying a metal chloride (eg, SnCl) such as tin or titanium onto a surface of a molded glass container at a temperature of about 400 to 500 ° C., so that sodium (Na) and chlorine in the glass are formed. To form a metal oxide thin film such as SnO on the container surface,
Is generated.
【００１１】コールドエンド・コーティングは通常、６
６〜２３２℃（特公昭４２−１７５号公報参照）、好ま
しくは水分散液の沸騰点に近い約７０〜１５０℃のガラ
ス容器の温度で行われる。熱可塑性樹脂の水分散液を噴
霧状にして、側壁部にスプレーすると、瞬間側壁部は濡
れるが、高温のガラス表面の撥水性によって凝縮して、
面積が極く微少な多数の島状部になり、水分が蒸発した
後、冷却固化して熱可塑性樹脂薄膜層が形成されるもの
と思われる。凝縮のため、固化した後の島状部は凹凸の
ある表面、すなわち粗面になるものと思われる。なお水
分散液中の熱可塑性樹脂の微粒子がガラス容器表面に残
ることも、島状部が粗面であることに寄与するものと思
われる。島状部が通常楕円形状をしているのは、凝縮す
る時の、表面張力の作用によるものと思われる。[0011] Cold end coatings are usually 6
The reaction is carried out at a temperature of 6 to 232 ° C (see Japanese Patent Publication No. 42-175), preferably at a temperature of about 70 to 150 ° C, which is close to the boiling point of the aqueous dispersion. When the aqueous dispersion of the thermoplastic resin is sprayed and sprayed on the side wall portion, the side wall portion is instantly wet, but condensed due to the water repellency of the high temperature glass surface,
It is considered that a large number of extremely small island-shaped portions are formed, and after the water evaporates, they are cooled and solidified to form a thermoplastic resin thin film layer. Due to the condensation, the islands after solidification are considered to have an uneven surface, that is, a rough surface. In addition, the fact that the fine particles of the thermoplastic resin in the aqueous dispersion remain on the surface of the glass container is considered to contribute to the rough surface of the island-shaped portion. The reason that the island-shaped portion is usually elliptical is considered to be due to the effect of surface tension when condensing.
【００１２】水分散液中の熱可塑性樹脂の含有率が０．
０５重量％より小さいと、擦り傷防止に効果のある熱可
塑性樹脂薄膜層の形成が困難であり、一方１重量％より
大きいと、熱可塑性樹脂薄膜層が側壁部表面に占める割
合が大きくなって、ラベルの貼着性が低下するので好ま
しくない。When the content of the thermoplastic resin in the aqueous dispersion is 0.
If it is less than 05% by weight, it is difficult to form a thermoplastic resin thin film layer effective for preventing scratching, while if it is more than 1% by weight, the ratio of the thermoplastic resin thin film layer to the side wall surface becomes large, It is not preferable because the sticking property of the label decreases.
【００１３】噴霧の平均粒径が１０μｍより小さいと、
ガラス容器の側壁部への水分散液が付着し難いため、熱
可塑性樹脂薄膜層の被覆率が小さくなるため好ましくな
い。一方３０μｍより大きいと、スプレー・ガン周辺を
包囲する隔壁からの噴霧の跳ね返りが起こり難いため、
熱可塑性樹脂薄膜層が、側壁部表面のスプレー・ガンに
対向しない部分に付着され難くなり、そのため側壁部の
周面に沿って被覆率や島状部等の面積が、不均一にな
り、かつ局部的に小さくなる箇所が生ずるので好ましく
ない。スプレー回数が増える程、島状部の集合体の数、
および熱可塑性樹脂薄膜層の被覆率と厚さが増えるが、
４回以上になると、汚れが目立ち、かつラベルの糊によ
る貼着性が失われるので好ましくない。When the average particle size of the spray is smaller than 10 μm,
Since the aqueous dispersion hardly adheres to the side wall of the glass container, the coverage of the thermoplastic resin thin film layer decreases, which is not preferable. On the other hand, if it is larger than 30 μm, the splash of the spray from the partition wall surrounding the spray gun hardly occurs,
The thermoplastic resin thin film layer is less likely to adhere to the portion of the side wall surface that is not opposed to the spray gun, so that the area of coverage and islands along the peripheral surface of the side wall becomes uneven, and It is not preferable because a portion locally becomes small. As the number of sprays increases, the number of aggregates in islands,
And the coverage and thickness of the thermoplastic resin thin film layer increase,
If the number of times is four or more, it is not preferable because dirt is conspicuous and the sticking property of the label with adhesive is lost.
【００１４】[0014]
【発明の実施の形態】図１において、２は熱可塑性樹脂
薄膜層１の島状部である。３は島状部２の集合体であ
る。島状部２および島状部２の集合体３は、ガラス容器
４（図３参照）の側壁部５の表面に分布している。すな
わち熱可塑性樹脂薄膜層１は側壁部４の表面に不連続的
に、ほぼ一様に分布している。集合体３は通常、スプレ
ーを２回または３回行う時にそれぞれ、１回目または２
回目に形成された島状部２または集合体３の一部分に重
なって新たな島状部２が形成されることによって生成さ
れる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 2 denotes an island portion of a thermoplastic resin thin film layer 1. Reference numeral 3 denotes an aggregate of the islands 2. The islands 2 and the aggregate 3 of the islands 2 are distributed on the surface of the side wall 5 of the glass container 4 (see FIG. 3). That is, the thermoplastic resin thin film layer 1 is discontinuously and almost uniformly distributed on the surface of the side wall portion 4. Aggregate 3 is typically the first or second spray when sprayed two or three times, respectively.
It is generated by forming a new island-shaped portion 2 overlapping a part of the island-shaped portion 2 or the aggregate 3 formed the first time.
【００１５】島状部２およびその集合体３よりなる熱可
塑性樹脂薄膜層１の全面積Aの、ガラス容器５の側壁部
４の表面の全面積Bに対する割合、すなわち被覆率｛（A
／B）ｘ１００％｝は、３〜６０％であることが望まし
い。理由は段落番号０００７において説明した通りであ
る。熱可塑性樹脂薄膜層１は、図４に示すように、連丘
状、山脈状等に表面が凹凸よりなっていて、厚さは均一
でない。図４において、中央の楕円形状の部分が島状部
２であって、その中の短い紐状の部分が丘状部であっ
て、特に厚くなっている。なお図４は、走査型レーザー
顕微鏡で撮影したものである。そこで熱可塑性樹脂薄膜
層１の面積とは、その厚さが平均０．０１μｍ以上であ
る部分の面積をいう。The ratio of the total area A of the thermoplastic resin thin film layer 1 composed of the islands 2 and the aggregate 3 thereof to the total area B of the surface of the side wall 4 of the glass container 5, that is, the covering ratio ｛(A
/ B) x100%} is preferably 3 to 60%. The reason is as described in paragraph 0007. As shown in FIG. 4, the surface of the thermoplastic resin thin film layer 1 has irregularities in the form of a series of hills, mountains, or the like, and the thickness is not uniform. In FIG. 4, the central elliptical portion is the island-like portion 2, and the short string-like portion therein is the hill-like portion, which is particularly thick. FIG. 4 is a photograph taken with a scanning laser microscope. Therefore, the area of the thermoplastic resin thin film layer 1 refers to the area of a portion whose thickness is 0.01 μm or more on average.
【００１６】島状部２は通常楕円形状又はこれに近い形
状をしている。島状部２の最大径（最大長さ）dmax、す
なわち島状部２が楕円形の場合は、その長軸の長さの、
最大値が１０〜３００μｍであることが望ましい。集合
体３も、その最大径（最大長さ）Dmaxの、最大値が１０
〜３００μｍであることが望ましい。その理由は段落番
号０００８において説明した通りである。The island-shaped portion 2 usually has an elliptical shape or a shape close thereto. The maximum diameter (maximum length) dmax of the island 2, that is, when the island 2 is elliptical, the length of its major axis is
It is desirable that the maximum value be 10 to 300 μm. The maximum value of the maximum diameter (maximum length) Dmax of the aggregate 3 is also 10
It is desirable that the thickness be 300 μm. The reason is as described in paragraph 0008.
【００１７】図２は、島状部２のエッジから中央部にか
けて直線的に、熱可塑性樹脂薄膜層１の厚さを、原子間
力顕微鏡（AFM）を用いて測定した結果の１例を示す。
この場合、島状部２の厚さは約５０〜１００ｎｍ（０．
０５〜０．１０μｍ）であることが分かる。図５は、図
２で厚さを測定した部分近傍を、原子間力顕微鏡により
撮影した三次元形状を示したものである。各軸の長さ単
位はｎｍである。島状部２が連峰状に起伏している状態
が分かる。島状部２および集合体３における熱可塑性樹
脂薄膜層１の厚さは、０．０１〜１．０μｍ（１０〜
１,０００ｎｍ）であることが望ましい。熱可塑性樹脂
薄膜層の厚さが、０．０１μｍ（１０ｎｍ）より薄い
と、熱可塑性樹脂薄膜層の潤滑性が乏しくなって擦り傷
が発生し易くなる。一方厚さが、１．０μｍ（１０００
ｎｍ）より厚くなると、汚れが目立ち、外観不良となり
商品価値が低下し易い。FIG. 2 shows an example of the result of measuring the thickness of the thermoplastic resin thin film layer 1 linearly from the edge to the center of the island-shaped portion 2 using an atomic force microscope (AFM). .
In this case, the thickness of the island 2 is about 50 to 100 nm (0.
0.5 to 0.10 μm). FIG. 5 shows a three-dimensional shape of the vicinity of the portion where the thickness was measured in FIG. 2 taken by an atomic force microscope. The length unit of each axis is nm. It can be seen that the island-shaped portion 2 is undulating in a mountain-like manner. The thickness of the thermoplastic resin thin film layer 1 in the islands 2 and the aggregate 3 is 0.01 to 1.0 μm (10 to 10 μm).
(1,000 nm). When the thickness of the thermoplastic resin thin film layer is smaller than 0.01 μm (10 nm), the lubricity of the thermoplastic resin thin film layer becomes poor and scratches are likely to occur. On the other hand, when the thickness is 1.0 μm (1000
If the thickness is larger than (nm), dirt is conspicuous, the appearance is poor, and the commercial value is likely to be reduced.
【００１８】次に熱可塑性樹脂薄膜層１を、ガラス容器
４の側壁部５に形成する方法について述べる。図３にお
いて、７は、ホットエンド・コーティング後、徐冷炉
（図示されない）を出た直後の、約７０〜１５０℃のガ
ラス容器４を載置して矢印方向へ移送するメッシュ・コ
ンベアである。８は、対向して定位置に配設された一対
のスプレー・ガンである。スプレー・ガン８の周辺に
は、ガラス容器４が通過できる孔部を残して、後述の噴
霧９の飛散防止用の隔壁（図示されない）が設けられて
いる。Next, a method for forming the thermoplastic resin thin film layer 1 on the side wall 5 of the glass container 4 will be described. In FIG. 3, reference numeral 7 denotes a mesh conveyor for placing a glass container 4 at about 70 to 150 ° C. immediately after leaving a lehr (not shown) after hot-end coating and transferring the glass container 4 in the direction of the arrow. Numeral 8 denotes a pair of spray guns which are disposed opposite each other at a predetermined position. Around the spray gun 8, a partition (not shown) for preventing the spray 9 from being scattered is provided except for a hole through which the glass container 4 can pass.
【００１９】スプレー液は、低分子量のポリエチレンを
界面活性剤によって水分散液とした、ポリエチレンを約
０．０５〜１重量％含有して、ポリエチレンを主成分と
するものが好ましく用いられる。９は、スプレー・ガン
８からスプレーされる噴霧であって、噴霧９の平均粒径
は約１０〜３０μｍであるのが好ましい。噴霧量は、約
１０〜１００ｃ．ｃ．／分であるのが好ましい。As the spray liquid, a liquid containing polyethylene in an amount of about 0.05 to 1% by weight in which a low-molecular-weight polyethylene is made into an aqueous dispersion with a surfactant, and polyethylene is used as a main component is preferably used. Numeral 9 is a spray sprayed from the spray gun 8, and the average particle size of the spray 9 is preferably about 10 to 30 μm. The spray amount is about 10 to 100 c. c. / Min.
【００２０】スプレー時のガラス容器５の温度は、通常
約７０〜１５０℃である。そのためスプレー・ガン８に
対向する位置を通過すると、直接側壁部５に当たって付
着した噴霧９、および隔壁（図示されない）から跳ね返
って側壁部５に当たって付着した噴霧９が、直ちに乾燥
して、側壁部５にポリエチレンを主体とする熱可塑性樹
脂薄膜層１が島状に形成される。熱可塑性樹脂薄膜層１
の被覆率を大きくする場合通常は、図示は省略したが、
スプレー・ガン８を２対または３対連続して配設して、
それぞれ２回または３回のスプレーを行う。The temperature of the glass container 5 at the time of spraying is usually about 70 to 150 ° C. Therefore, when passing through the position facing the spray gun 8, the spray 9 directly adhering to the side wall 5 and the spray 9 rebounding from the partition wall (not shown) and adhering to the side wall 5 are immediately dried and dried. Then, a thermoplastic resin thin film layer 1 mainly composed of polyethylene is formed in an island shape. Thermoplastic resin thin film layer 1
In the case of increasing the coverage of, usually illustration is omitted,
Spray guns 8 are arranged in two or three pairs in a row,
Apply two or three sprays each.
【００２１】[0021]
【実施例】実施例１：低分子量（分子量：１７００）の
ポリエチレン２０重量％、界面活性剤５重量％および少
量の消泡剤等の添加剤を含む水分散原液を、水で希釈し
てポリエチレン含有率を０．２重量％にした水分散液
を、スプレー液とした。スプレー・ガン８として、一対
の、いけうち社製のＢＩＭＶ８００２Ｓ３０３型を用い
た。すなわちスプレー回数は１回であった。ガラス容器
４は、外径３．５ｃｍ、高さ１０ｃｍの栄養ドリンク用
のものであり、スプレー時の温度は１０２℃で、移行速
度は１０ｍ／分であった。スプレー・ガン８の先端部と
ガラス容器４との最短距離は５ｃｍであった。 スプレ
ー・エア圧は２．８kgf／cm2、水分散液は大気圧（１ｋ
ｇｆ／ｃｍ2）で、噴霧９の平均粒径は１２μｍ、噴霧
量は２０ｃｃ／分であった。結果を表１に示す。EXAMPLE 1 A water dispersion stock solution containing 20% by weight of low molecular weight (molecular weight: 1700) polyethylene, 5% by weight of a surfactant and a small amount of additives such as an antifoaming agent was diluted with water to obtain polyethylene. The aqueous dispersion having a content of 0.2% by weight was used as a spray liquid. A pair of BIMV8002S303 manufactured by Ikeuchi Co., Ltd. was used as the spray gun 8. That is, the number of sprays was one. The glass container 4 was for a nutritional drink having an outer diameter of 3.5 cm and a height of 10 cm, the temperature during spraying was 102 ° C., and the transfer speed was 10 m / min. The shortest distance between the tip of the spray gun 8 and the glass container 4 was 5 cm. The spray air pressure is 2.8 kgf / cm 2 , and the aqueous dispersion is atmospheric pressure (1k
gf / cm 2 ), the average particle size of the spray 9 was 12 μm, and the spray amount was 20 cc / min. Table 1 shows the results.
【００２２】[0022]
【表１】 [Table 1]
【００２３】表１における各項目の測定方法および評価
方法は、次の通りである。 （１）噴霧の平均粒径：レーザ・ドップラー法によって
行った。すなわち２本のレーザビームを交差させ、干渉
縞を形成し、この干渉縞を通過した粒子により生じた散
乱光を、一定距離離れた複数の受光器で感知した時の位
相差により粒子径を算出した。 （２）被覆率：走査型レーザー顕微鏡で、胴壁部の全周
面に沿って観察し、画像処理して、各画面中の楕円およ
び集合体の面積の和を、当該画面の全面積で除算した値
を求め、これらの値の平均値を被覆率とした。 （３）最大値：走査型レーザー顕微鏡で、胴壁部の全周
面に沿って観察し、全島状部および集合体の最大径の中
の最も大きい値を最大値とした。 （４）耐擦り傷性：スプレー後のガラス容器を、生産ラ
インの終端部である梱包工程で１００個サンプリング
し、目視でサンプルの傷の有無を調べた。○は擦り傷無
し、Xは擦り傷有りを示す。 （５）貼着性：ガラス容器瓶の胴壁部に、接着剤が澱粉
糊である紙ラベルをラベリング・マシーンで貼り、梱包
工程で１００個サンプリングし、目視でサンプルのラベ
ルの剥がれ度合いを調べた。○は剥離皆無、Xは剥れ有
りを示す。 （６）汚れ：肉眼観察により、べたつき具合等から判断
した。○は汚れ無し。Xは汚れ有りを示す。The measuring method and evaluation method of each item in Table 1 are as follows. (1) Average particle size of spray: This was performed by the laser Doppler method. That is, two laser beams intersect to form an interference fringe, and the particle diameter is calculated from the phase difference when the scattered light generated by the particles passing through the interference fringes is detected by a plurality of light receivers separated by a certain distance. did. (2) Coverage: Observed along the entire peripheral surface of the body wall with a scanning laser microscope, image-processed, and the sum of the area of the ellipse and the aggregate in each screen is calculated using the total area of the screen. Divided values were determined, and the average of these values was defined as the coverage. (3) Maximum value: Observed along the entire peripheral surface of the trunk wall with a scanning laser microscope, and the largest value among the maximum diameters of all islands and the aggregate was defined as the maximum value. (4) Abrasion resistance: 100 pieces of the sprayed glass containers were sampled in the packing step at the end of the production line, and the samples were visually inspected for scratches. ○ indicates no abrasion, and X indicates abrasion. (5) Adhesiveness: A paper label whose adhesive is starch glue is attached to the body wall of a glass container bottle with a labeling machine, and 100 pieces are sampled in a packing process, and the degree of peeling of the sample label is visually examined. Was.は indicates no peeling, and X indicates peeling. (6) Dirt: Judged from stickiness by visual observation. ○ indicates no dirt. X indicates dirt.
【００２４】実施例２：スプレー回数を２回にした点以
外は、実施例１と同様の条件でスプレーを行った。結果
を表１に示す。Example 2: Spraying was performed under the same conditions as in Example 1 except that the number of sprays was changed to two. Table 1 shows the results.
【００２５】実施例３：スプレー回数を３回にした点以
外は、実施例１と同様の条件でスプレーを行った。結果
を表１に示す。Example 3 Spraying was carried out under the same conditions as in Example 1 except that the number of sprays was three. Table 1 shows the results.
【００２６】実施例４：水分散液のポリエチレン含有率
を０．１重量％、スプレー・エア圧が１．６kgf／cm2、
噴霧９の平均粒径を２６μｍ、、噴霧量が５０ｃｃ／分
とした点以外は、実施例１と同様にしてスプレーを行っ
た。結果を表１に示す。Example 4: The polyethylene content of the aqueous dispersion is 0.1% by weight, the spray air pressure is 1.6 kgf / cm 2 ,
Spraying was carried out in the same manner as in Example 1, except that the average particle size of the spray 9 was 26 μm and the spray amount was 50 cc / min. Table 1 shows the results.
【００２７】実施例５：水分散液のポリエチレン含有率
を０．９重量％、スプレー・エア圧が１．６kgf／cm2、
噴霧９の平均粒径を２５μｍ、、噴霧量が５０ｃｃ／分
とした点以外は、実施例１と同様にしてスプレーを行っ
た。結果を表１に示す。Example 5: The polyethylene content of the aqueous dispersion is 0.9% by weight, the spray air pressure is 1.6 kgf / cm 2 ,
Spraying was carried out in the same manner as in Example 1 except that the average particle size of the spray 9 was 25 μm and the spray amount was 50 cc / min. Table 1 shows the results.
【００２８】比較例１：水分散液のポリエチレン含有率
を０．０３重量％、スプレー・エア圧が４kgf／cm2、ス
プレー液圧は１．５kgf／cm2、噴霧９の平均粒径を７μ
ｍ、噴霧量が１７ｃｃ／分とした点以外は、実施例１と
同様にしてスプレーを行った。結果を表１に示す。Comparative Example 1: The polyethylene content of the aqueous dispersion was 0.03% by weight, the spray air pressure was 4 kgf / cm 2 , the spray liquid pressure was 1.5 kgf / cm 2 , and the average particle size of the spray 9 was 7 μm.
Spraying was carried out in the same manner as in Example 1 except that m and the spray amount were 17 cc / min. Table 1 shows the results.
【００２９】比較例２：水分散液のポリエチレン含有率
を０．５重量％、噴霧９の平均粒径を４０μｍ、スプレ
ー・エア圧が．０．９kgf／cm2、噴霧９の平均粒径を４
０μｍ、、噴霧量が８０ｃｃ／分とした点、およびスプ
レー回数を３回にした以外は、実施例１と同様にしてス
プレーを行った。結果を表１に示す。Comparative Example 2: The polyethylene content of the aqueous dispersion was 0.5% by weight, the average particle size of the spray 9 was 40 μm, and the spray air pressure was. 0.9 kgf / cm 2 , average particle size of spray 9 is 4
Spraying was carried out in the same manner as in Example 1 except that 0 μm, the spray amount was 80 cc / min, and the number of sprays was three. Table 1 shows the results.
【００３０】比較例３：水分散液のポリエチレン含有率
を０．５重量％、スプレー・エア圧が１．６kgf／cm2、
噴霧９の平均粒径を４０μｍ、噴霧量が５０ｃｃ／分と
した点、およびスプレー回数を４回にした以外は、実施
例１と同様にしてスプレーを行った。結果を表１に示
す。Comparative Example 3: The polyethylene content of the aqueous dispersion was 0.5% by weight, the spray air pressure was 1.6 kgf / cm 2 ,
Spraying was carried out in the same manner as in Example 1 except that the average particle size of the spray 9 was 40 μm, the spray amount was 50 cc / min, and the number of sprays was four. Table 1 shows the results.
【００３１】比較例４：水分散液のポリエチレン含有率
を１．２重量％、スプレー・エア圧が１．６kgf／cm2、
噴霧９の平均粒径を２６μｍ、噴霧量が５０ｃｃ／分と
した点、およびスプレー回数を３回にした以外は、実施
例１と同様にしてスプレーを行った。結果を表１に示
す。Comparative Example 4: The aqueous dispersion had a polyethylene content of 1.2% by weight, a spray air pressure of 1.6 kgf / cm 2 ,
Spraying was carried out in the same manner as in Example 1 except that the average particle size of the spray 9 was 26 μm, the spray amount was 50 cc / min, and the number of sprays was three. Table 1 shows the results.
【００３２】[0032]
【発明の効果】本発明のガラス容器は、搬送中等におけ
る側壁部の擦り傷の発生が防止され、かつラベルを糊で
容易に貼着することができるという効果を奏する。本発
明の製造方法は、上記ガラス容器を確実に製造できると
いう効果を奏する。According to the glass container of the present invention, it is possible to prevent the occurrence of abrasion on the side wall portion during transportation or the like, and to easily apply the label with glue. The manufacturing method of the present invention has an effect that the glass container can be manufactured reliably.
【図１】本発明のガラス容器の熱可塑性樹脂薄膜層の、
説明用模式的平面図である。FIG. 1 shows a thermoplastic resin thin film layer of a glass container of the present invention.
It is a schematic plan view for explanation.
【図２】本発明のガラス容器の熱可塑性樹脂薄膜層の、
原子間力顕微鏡で測定した、エッジからの距離と高さと
の関係の例を示す線図である。FIG. 2 shows a thermoplastic resin thin film layer of the glass container of the present invention.
FIG. 4 is a diagram illustrating an example of a relationship between a distance from an edge and a height measured by an atomic force microscope.
【図３】本発明のガラス容器を製造する装置の要部斜視
図である。FIG. 3 is a perspective view of a main part of an apparatus for manufacturing the glass container of the present invention.
【図４】本発明のガラス容器の熱可塑性樹脂薄膜層の例
の、レーザー顕微鏡図面代用写真である。FIG. 4 is a photograph substituted for a laser microscope drawing of an example of the thermoplastic resin thin film layer of the glass container of the present invention.
【図５】本発明のガラス容器の熱可塑性樹脂薄膜層の例
の、原子間力顕微鏡による三次元形状図面代用写真であ
る。FIG. 5 is a photograph substituted for a three-dimensional shape drawing by an atomic force microscope of an example of a thermoplastic resin thin film layer of the glass container of the present invention.
１ 熱可塑性樹脂薄膜層 ２ 島状部 ３ 集合体 ４ ガラス容器 ５ 側壁部 ９ 噴霧 DESCRIPTION OF SYMBOLS 1 Thermoplastic resin thin film layer 2 Island part 3 Assembly 4 Glass container 5 Side wall part 9 Spray
フロントページの続き (72)発明者 竹之内 健 神奈川県横浜市金沢区能見台４−４−21 Ｄ−407 Ｆターム(参考） 3E033 AA02 BA01 BA13 BA15 BB08 DB01 DE20 EA10 EA20 3E062 AA09 AB01 AC06 JA04 JA08 JB11 JB23 JC02 4G059 AA04 AB05 AC24 AC30 FA14 FB06 Continued on the front page (72) Inventor Takeshi Ken Takeuchi 4-4-21 Nomidai, Kanazawa-ku, Yokohama, Kanagawa Prefecture D-407 F-term (reference) 3E033 AA02 BA01 BA13 BA15 BB08 DB01 DE20 EA10 EA20 3E062 AA09 AB01 AC06 JA04 JA08 JB11 JB23 JC02 4G059 AA04 AB05 AC24 AC30 FA14 FB06
Claims (4)
島状に分布していることを特徴とするガラス容器。1. A glass container characterized in that a thermoplastic resin thin film layer is distributed in an island shape on a surface of a side wall portion.
または複数の島状部および島状部の集合体よりなり、か
つ側壁部の表面における被覆率が３〜６０％である請求
項１記載のガラス容器。2. The method according to claim 1, wherein the thermoplastic resin thin film layer comprises a plurality of islands,
2. The glass container according to claim 1, comprising a plurality of islands and an aggregate of the islands, and a coverage of 3 to 60% on the surface of the side wall. 3.
大値が１０〜３００μｍである請求項２記載のガラス容
器。3. The glass container according to claim 2, wherein the maximum value among the maximum diameters of the island portion and the aggregate is 10 to 300 μm.
ンド・コーティングおよび徐冷した直後の、コールドエ
ンド・コーティングの工程において、熱可塑性樹脂の含
有率が０．０５〜１．０重量％である熱可塑性樹脂の水
分散液を、平均粒径が１０〜３０μｍの霧状にして、側
壁部に１〜３回スプレーすることを特徴とする、側壁部
の表面に、熱可塑性樹脂薄膜層が島状に分布しているガ
ラス容器の製造方法。4. In the step of cold end coating immediately after molding, hot end coating of an inorganic thin film such as tin oxide and slow cooling, the thermoplastic resin content is 0.05 to 1.0% by weight. An aqueous dispersion of a certain thermoplastic resin is formed into a mist having an average particle size of 10 to 30 μm, and sprayed to the side wall portion one to three times. On the surface of the side wall portion, a thermoplastic resin thin film layer is formed. A method for producing glass containers distributed in an island shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15953599A JP2000351652A (en) | 1999-06-07 | 1999-06-07 | Glass container and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15953599A JP2000351652A (en) | 1999-06-07 | 1999-06-07 | Glass container and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000351652A true JP2000351652A (en) | 2000-12-19 |
Family
ID=15695902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15953599A Pending JP2000351652A (en) | 1999-06-07 | 1999-06-07 | Glass container and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000351652A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005090949A1 (en) * | 2004-03-22 | 2005-09-29 | Aohata Corporation | Method of inspecting sealed container and method of producing sealed container product that contains contents |
| FR2893022A1 (en) * | 2005-11-10 | 2007-05-11 | Saint Gobain Emballage Sa | PROCESS FOR REINFORCING HOLLOW GLASS ARTICLES |
| JP2013189558A (en) * | 2012-03-14 | 2013-09-26 | Nihon Taisanbin Glass Bottle Mfg Co Ltd | Coating composition for glass bottle surface treatment and glass bottle |
-
1999
- 1999-06-07 JP JP15953599A patent/JP2000351652A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005090949A1 (en) * | 2004-03-22 | 2005-09-29 | Aohata Corporation | Method of inspecting sealed container and method of producing sealed container product that contains contents |
| JP2005265812A (en) * | 2004-03-22 | 2005-09-29 | Aohata Corp | Inspection method for sealed container, and manufacturing method for sealed container product with content |
| FR2893022A1 (en) * | 2005-11-10 | 2007-05-11 | Saint Gobain Emballage Sa | PROCESS FOR REINFORCING HOLLOW GLASS ARTICLES |
| WO2007057597A1 (en) * | 2005-11-10 | 2007-05-24 | Saint-Gobain Emballage | Method for reinforcing hollow glass articles |
| US8715785B2 (en) | 2005-11-10 | 2014-05-06 | Saint-Gobain Emballage | Method for reinforcing hollow glass articles |
| JP2013189558A (en) * | 2012-03-14 | 2013-09-26 | Nihon Taisanbin Glass Bottle Mfg Co Ltd | Coating composition for glass bottle surface treatment and glass bottle |
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