JPS6374937A - Protecting outer surface of glass bottle for carbonated beverage - Google Patents
Protecting outer surface of glass bottle for carbonated beverageInfo
- Publication number
- JPS6374937A JPS6374937A JP22018986A JP22018986A JPS6374937A JP S6374937 A JPS6374937 A JP S6374937A JP 22018986 A JP22018986 A JP 22018986A JP 22018986 A JP22018986 A JP 22018986A JP S6374937 A JPS6374937 A JP S6374937A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- silicone resin
- bottle
- carbonated beverage
- glass bottle
- 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
- 239000011521 glass Substances 0.000 title claims abstract description 68
- 235000014171 carbonated beverage Nutrition 0.000 title claims abstract description 27
- 229920002050 silicone resin Polymers 0.000 claims abstract description 29
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000010408 film Substances 0.000 abstract 3
- 239000010409 thin film Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 230000003111 delayed effect Effects 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000013405 beer Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009503 electrostatic coating Methods 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Surface Treatment Of Glass (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は炭酸飲料用ガラス壜の外表面を保護する方法に
関する。更に詳しくは、炭酸飲料用ガラス壜の疲労現象
による「遅れ破損」を防止するためのガラス壜外表面の
保護方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for protecting the outer surface of a glass bottle for carbonated beverages. More specifically, the present invention relates to a method for protecting the outer surface of a glass bottle for carbonated beverages to prevent "delayed breakage" due to fatigue phenomena.
（従来の技術）
従来からビール、炭酸入りジュース等の炭酸飲料用容器
としてガラス塩は広く使用されているが、この炭酸飲料
用ガラス壜には常時内圧が負荷しているためにガラス塩
の肉厚を十分に厚（して内圧に耐え得るものとしていた
。又、ガラス塩の肉厚を薄（するとともに外表面をプラ
スチック樹脂でコーティングしたり、プラスチックフィ
ルムでシュリンクして内圧に耐えるだけの強度を保証し
、更には破損時におけるガラス破損の飛散防止を図った
ガラス塩も公知である。(Prior art) Glass salt has been widely used as containers for carbonated beverages such as beer and carbonated juice, but since internal pressure is constantly applied to glass bottles for carbonated beverages, glass salt is The glass salt was made thick enough to withstand internal pressure.The glass salt was also made thin enough to withstand internal pressure by coating the outer surface with plastic resin or shrinking it with plastic film. Glass salts are also known that guarantee the safety of glass and also prevent glass breakage from scattering when broken.
ところが、ガラス壜製造メーカーからの出荷においては
十分に内圧の負荷に耐え得るだけの強度を有するガラス
塩であっても、炭酸飲料が充填されて内圧が常にかかっ
た状態で長期間放置してお（とガラス塩が破壊される現
象が生じる場合があった。いわゆる業界内において「遅
れ破損」と称されるもので、特に薄肉軽量化された炭酸
飲料用ガラス壜において問題となっていた。この「遅れ
破損」はガラスの疲労現象によって発生するものであり
、ここでいう疲労現象とはガラスにある程度以上の負荷
を加え続けておくと、表面に存在する微小のクラック（
傷）が負荷の影響で徐々に伸長して行く現象である。However, even if the glass bottle is strong enough to withstand the internal pressure when shipped from a glass bottle manufacturer, it may be filled with carbonated drinks and left under constant internal pressure for a long period of time. (There were cases where the glass salt was broken. This is what is called "delayed breakage" in the industry, and it was a problem especially with thinner and lighter glass bottles for carbonated drinks. "Delayed fracture" occurs due to the fatigue phenomenon of glass, and the fatigue phenomenon referred to here is when glass is continuously subjected to a certain amount of load, resulting in the formation of microscopic cracks (
This is a phenomenon in which scratches) gradually expand under the influence of load.
このようなガラスの疲労現象が生ずるために、内圧が負
荷される炭酸飲料用ガラス環においては、壜製造メーカ
ーからの出荷時の初期強度を長期間にわたって維持する
ことが困難となり、ガラス環の強度を保証するのに十分
な肉厚が必要となって壜の薄肉軽量化に制限を加える原
因の一つになっていた。従って、ガラスの疲労現象を防
止することによってガラス環の初期強度を長期間にわた
って維持し、「遅れ破損」の発生をなくすことができる
炭酸飲料用ガラス環の外表面を保護する方法の開発が望
まれていた。Due to this phenomenon of glass fatigue, it becomes difficult to maintain the initial strength for a long period of time when shipped from the bottle manufacturer in carbonated beverage glass rings that are subjected to internal pressure, and the strength of the glass ring is reduced. The wall thickness needed to be sufficient to guarantee this, which was one of the reasons for limiting the ability to make bottles thinner and lighter. Therefore, it is desirable to develop a method for protecting the outer surface of a glass ring for carbonated beverages that can maintain the initial strength of the glass ring over a long period of time by preventing glass fatigue phenomena and eliminate the occurrence of "delayed breakage." It was rare.
（発明が解決しようとする問題点）
本発明は上記のような従来の問題点を解決して、ガラス
壜製造メーカーから出荷される壜の初期強度を長期間に
わたって維持することによって、いわゆる「遅れ破損」
の発生を防止できる炭酸飲料用ガラス環の外表面を保護
する方法を目的として完成されたものである。(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems and maintains the initial strength of bottles shipped from glass bottle manufacturers over a long period of time, thereby reducing the so-called "delay". Corruption"
This method was developed for the purpose of protecting the outer surface of a glass ring for carbonated beverages to prevent the occurrence of carbonated beverages.
（問題点を解決するための手段）
本発明は炭酸飲料用ガラス環の外表面にシリコーン樹脂
を塗布した後、該シリコーン樹脂を加熱硬化してガラス
壜外表面に薄膜のシリコーン樹脂被膜を形成することに
よって、ガラスの疲労現象による壜外表面のクラックの
成長を防止することを特徴とするものである。(Means for Solving the Problems) The present invention applies a silicone resin to the outer surface of a glass ring for carbonated beverages, and then heats and hardens the silicone resin to form a thin silicone resin coating on the outer surface of the glass bottle. This feature prevents the growth of cracks on the outer surface of the bottle due to glass fatigue phenomena.
次に本発明を図面を参照しつつ詳細に説明すると、第１
図は本発明によって外表面がシリコーン樹脂で保護され
た炭酸飲料用ガラス環１の正面図を示すもので、一部断
面図で示しである。ガラス環１の外表面には１〜５０μ
程度の薄膜のシリコーン樹脂被膜２が形成されており、
該シリコーン樹脂被膜２の形成はガラス環１の外表面に
シリコーン樹脂を塗布する第１工程と、該シリコーン樹
脂を加熱硬化する第２工程とを経ることによって行なわ
れる。Next, the present invention will be explained in detail with reference to the drawings.
The figure shows a front view of a carbonated beverage glass ring 1 whose outer surface is protected with a silicone resin according to the present invention, and is partially sectional. 1 to 50μ on the outer surface of glass ring 1
A silicone resin coating 2 of about 100% is formed.
Formation of the silicone resin coating 2 is carried out through a first step of applying a silicone resin to the outer surface of the glass ring 1, and a second step of heating and curing the silicone resin.
前記の第１工程は常温で液体のシリコーン樹脂浴の中へ
ガラス環１をディッピングする浸漬法による塗布が最も
好ましいが、その他の方法としてスプレー塗装法、静電
塗装法による塗布も可能である。又、第２工程は塗布さ
れたシリコーン樹脂を５０〜２００℃で加熱硬化してガ
ラス環１の外表面にシリコーン樹脂被膜２を形成するも
ので、加熱手段としては通常のヒーター等が使用できる
。尚、連続的に加熱処理する場合には所定温度に設定さ
れた乾燥炉を通過させることが好ましい。The first step described above is most preferably applied by dipping the glass ring 1 into a liquid silicone resin bath at room temperature, but other methods such as spray coating and electrostatic coating are also possible. In the second step, the applied silicone resin is heated and cured at 50 to 200 DEG C. to form a silicone resin coating 2 on the outer surface of the glass ring 1, and an ordinary heater or the like can be used as the heating means. In addition, in the case of continuous heat treatment, it is preferable to pass through a drying oven set at a predetermined temperature.
以上のようにして得られた外表面に薄膜のシリコーン樹
脂被膜が形成された炭酸飲料用ガラス環１においては、
シリコーン樹脂中の官能基とガラス壜表面上のＯＨ基と
が反応して、シリコーン樹脂被膜２がガラス環１の外表
面に強固に結合した状態となっている。第２図はガラス
壜側壁部の拡大断面図を示すもので、側壁部３の外表面
には微小なりラック４が存在しており、かつ外表面全体
はシリコーン樹脂被膜２がガラスと強固に結合している
。但し、図示のクラック４は微小なもので、その長さし
は非常に短いものであり、内圧が負荷された場合にもこ
のクラックからの破壊現象は生じない程度のものである
。In the glass ring 1 for carbonated beverages having a thin silicone resin coating formed on the outer surface obtained as above,
The functional groups in the silicone resin react with the OH groups on the surface of the glass bottle, so that the silicone resin coating 2 is firmly bonded to the outer surface of the glass ring 1. FIG. 2 shows an enlarged sectional view of the side wall of the glass bottle. There is a small rack 4 on the outer surface of the side wall 3, and the entire outer surface is covered with a silicone resin coating 2 that is firmly bonded to the glass. are doing. However, the cracks 4 shown in the figure are minute and have a very short length, so that even when internal pressure is applied, no breakage occurs from the cracks.
前述のｒ遅れ破損」の原因となるガラスの疲労現象は水
分の存在が不可欠であり、例えば真空雰囲気中あるいは
不活性ガス雰囲気中のような水分のない状態においては
この現象は生じないものである。従って、第２図に示さ
れるように、クラック４をシリコーン樹脂被膜２で覆っ
てクラック４に対して水分の供給を完全に遮断した場合
には、真空雰囲気等の水分のない雰囲気を実現したのと
同様の効果が得られガラスの疲労現象を完全に防止する
ことが可能となり、クラック４の伸長現象は見られない
。この結果、炭酸飲料用ガラス環１は炭酸飲料が充填さ
れて内圧が負荷された状態で使用されるものの、ガラス
の疲労現象が防止されるためにガラス環の強度としては
装填メーカーから出荷された時の初期強度が長期間にわ
たって維持されることとなり、従来の問題点であった「
遅れ破損」は完全に防止されることとなる。The presence of moisture is essential for the glass fatigue phenomenon that causes the above-mentioned delayed breakage, and this phenomenon does not occur in a moisture-free state, such as in a vacuum or inert gas atmosphere. . Therefore, as shown in FIG. 2, if the crack 4 is covered with the silicone resin coating 2 to completely cut off the supply of moisture to the crack 4, a moisture-free atmosphere such as a vacuum atmosphere can be achieved. The same effect as above can be obtained, and the fatigue phenomenon of the glass can be completely prevented, and the elongation phenomenon of the crack 4 is not observed. As a result, although the glass ring 1 for carbonated beverages is used while being filled with carbonated beverages and under internal pressure, the strength of the glass ring is not enough to prevent glass fatigue when shipped from the manufacturer. The initial strength at the time is maintained for a long period of time, which was a problem in the past.
"Delayed damage" will be completely prevented.
尚、環メーカーにおける強度検査工程においては内圧試
験機（ＡＧＲ社製）によるものがあり、この内圧試験に
よってもガラスの疲労現象が発生したが、この場合の疲
労現象も完全に防止できるために内圧試験機の強度保証
設定値を１０〜２０％落としても十分ガラス環の強度保
証ができることとなり、壜生産の歩留りを向上させるこ
とも可能となる。In addition, in the strength inspection process at ring manufacturers, an internal pressure tester (manufactured by AGR) is used, and this internal pressure test also caused glass fatigue, but since the fatigue phenomenon in this case can be completely prevented, the internal pressure Even if the strength guarantee setting value of the testing machine is lowered by 10 to 20%, the strength of the glass ring can be sufficiently guaranteed, and it is also possible to improve the yield of bottle production.
（実施例）
第１図に示すような内容量３００ｎｅの炭酸飲料用ガラ
ス環１をシリコーン樹脂浴内に浸漬して、ガラス環１の
口部下方郡全体にシリコン樹脂（トーレ・シリコーン社
製：ＡＹ４２・４４１シリコーン）を塗布した。その後
、ガラス環１を９０℃に温度設定した乾燥炉内へ３０分
間入れてシリコーン樹脂を加熱硬化させ、外表面に厚さ
約３μのシリコーン樹脂被膜２を有する炭酸飲料用ガラ
ス環を得た。(Example) A carbonated beverage glass ring 1 having a content of 300 ne as shown in FIG. AY42/441 silicone) was applied. Thereafter, the glass ring 1 was placed in a drying oven set at a temperature of 90° C. for 30 minutes to heat and harden the silicone resin, thereby obtaining a carbonated beverage glass ring having a silicone resin coating 2 with a thickness of about 3 μm on the outer surface.
前記ガラス壜５０本を内圧試験機（ＡＧＲ社製）で１０
ｋｇ ／ ｃｄの初期強度を保証し、重曹液を充填（
内圧６ ｋｇ ／ ｃｄに設定）後３ケ月間放置した。The 50 glass bottles were tested 10 times using an internal pressure tester (manufactured by AGR).
Guaranteed initial strength of kg/cd, filled with baking soda liquid (
After setting the internal pressure to 6 kg/cd), it was left for 3 months.
その結果、破壊したガラス環は一本もなく、すべてのガ
ラス環が初期強度を維持しており、ガラスの疲労現象が
完全に防止されていることが確認できた。As a result, it was confirmed that not a single glass ring was broken, and all the glass rings maintained their initial strength, and the fatigue phenomenon of the glass was completely prevented.
尚、シリコーン樹脂被膜を形成しない従来技術のガラス
環であって、１０ ｋｇ ／ ｃ＋Ｊの初期強度（ＡＧ
Ｒ社製内圧試験機）を保証したちの５０本に対して同様
の検査を行なった結果、１９本のガラス環が破壊（いわ
ゆる「遅れ破損」の現象）し、ガラスの疲労現象が発生
していることが確認できた。It should be noted that the glass ring of the prior art which does not form a silicone resin coating has an initial strength of 10 kg/c+J (AG
As a result of conducting similar tests on 50 glasses using a guaranteed internal pressure tester manufactured by R Company, 19 glass rings were broken (so-called ``delayed breakage'' phenomenon), and glass fatigue phenomenon occurred. It was confirmed that
（発明の効果）
以上の説明からも明らかなように、本発明においては壜
メーカーから出荷時の初期強度を長期間にわたって維持
し、「遅れ破損ｊを完全に防止できる炭酸飲料用ガラス
環を供給できるものである。更には、初期強度を確実に
保証できることによって壜の強度保証設定値を従来の１
０〜２０％落とすことも可能となる結果、壜生産の歩留
まりを向上させることができ、又、ガラス環の薄肉軽量
化も更に進めることができる等の効果も生ずるものであ
る。(Effects of the Invention) As is clear from the above explanation, the present invention provides a glass ring for carbonated beverages that maintains the initial strength at the time of shipment over a long period of time and completely prevents delayed breakage. Furthermore, by being able to reliably guarantee the initial strength, it is possible to reduce the bottle strength guarantee setting to 1.
As a result, it is possible to reduce the amount by 0 to 20%, and as a result, the yield of bottle production can be improved, and the glass ring can be further made thinner and lighter.
このように本発明は種々の効果を発揮する新規炭酸飲料
用ガラス塩の保護方法を供給するもので、産業界の発達
に大いに寄与するものである。As described above, the present invention provides a novel method for protecting glass salt for carbonated beverages that exhibits various effects, and greatly contributes to the development of the industrial world.
第１図は本発明によって得られた炭酸飲料用ガラス環の
一部断面図で示した正面図、第２図はガラス壜側壁部の
拡大断面図を示すものである。
１：炭酸飲料用ガラス環
２：シリコーン樹脂被膜
４：クラックFIG. 1 is a partially sectional front view of a carbonated beverage glass ring obtained according to the present invention, and FIG. 2 is an enlarged sectional view of the side wall of the glass bottle. 1: Glass ring for carbonated drinks 2: Silicone resin coating 4: Crack
Claims (1)
塗布した後、該シリコーン樹脂を加熱硬化してガラス壜
外表面に薄膜のシリコーン樹脂被膜を形成することによ
って、ガラスの疲労現象による壜外表面のクラックの成
長を防止することを特徴とする炭酸飲料用ガラス壜の外
表面を保護する方法。(1) After applying silicone resin to the outer surface of a glass bottle for carbonated beverages, the silicone resin is heated and cured to form a thin silicone resin coating on the outer surface of the glass bottle. A method for protecting the outer surface of a glass bottle for carbonated beverages, characterized by preventing the growth of cracks on the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22018986A JPS6374937A (en) | 1986-09-18 | 1986-09-18 | Protecting outer surface of glass bottle for carbonated beverage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22018986A JPS6374937A (en) | 1986-09-18 | 1986-09-18 | Protecting outer surface of glass bottle for carbonated beverage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6374937A true JPS6374937A (en) | 1988-04-05 |
Family
ID=16747275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22018986A Pending JPS6374937A (en) | 1986-09-18 | 1986-09-18 | Protecting outer surface of glass bottle for carbonated beverage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6374937A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5556040A (en) * | 1978-10-14 | 1980-04-24 | Kirin Brewery Co Ltd | Glass container scratch cover |
-
1986
- 1986-09-18 JP JP22018986A patent/JPS6374937A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5556040A (en) * | 1978-10-14 | 1980-04-24 | Kirin Brewery Co Ltd | Glass container scratch cover |
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