JP2003119047A - Lubricative parting material of mold for glass forming and method of coating mold for glass forming - Google Patents
Lubricative parting material of mold for glass forming and method of coating mold for glass formingInfo
- Publication number
- JP2003119047A JP2003119047A JP2001313623A JP2001313623A JP2003119047A JP 2003119047 A JP2003119047 A JP 2003119047A JP 2001313623 A JP2001313623 A JP 2001313623A JP 2001313623 A JP2001313623 A JP 2001313623A JP 2003119047 A JP2003119047 A JP 2003119047A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- release agent
- coating
- boron nitride
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B40/00—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it
- C03B40/02—Preventing adhesion between glass and glass or between glass and the means used to shape it, hold it or support it by lubrication; Use of materials as release or lubricating compositions
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はガラスびんなどのガ
ラス製品を成形する金型に使用する潤滑離型剤、及び、
ガラス成形用金型の成形面の潤滑性、離型性を向上させ
るためのコーティング方法に関する。TECHNICAL FIELD The present invention relates to a lubricant release agent used in a mold for molding glass products such as glass bottles, and
The present invention relates to a coating method for improving lubricity and releasability of a molding surface of a glass molding die.
【０００２】[0002]
【従来の技術】ガラス製品を成形する金型には、潤滑性
と離型性とが求められる。潤滑性は金型面に対するガラ
スの滑り易さで、潤滑性が悪いとガラスが正確な形に成
形できなかったり、肉厚が不均一になったりして不良品
の発生率が高くなる。離型性は金型面に対するガラスの
離れ易さで、離型性が悪いと脱型に際してガラスが金型
面にから離れるときに金型面に引っ張られ、傷（いわゆ
る「ビリ」）が生じる。このような傷は、特にガラス製
品の表面に凹凸によって形成される模様や文字の部分
（いわゆる模様ビリ、文字ビリ）、ガラスびんの肩の部
分（いわゆる肩ビリ）に発生しやすい。2. Description of the Related Art A mold for molding glass products is required to have lubricity and releasability. The lubricity is the slipperiness of the glass on the mold surface. If the lubricity is poor, the glass cannot be formed into an accurate shape or the wall thickness becomes uneven, resulting in a high incidence of defective products. The mold releasability is the ease with which the glass separates from the mold surface. If the mold releasability is poor, when the glass separates from the mold surface during demolding, the glass is pulled by the mold surface, causing scratches (so-called “billi”). . Such scratches are particularly likely to occur on the pattern or character portion formed on the surface of the glass product due to the unevenness (so-called pattern chattering, character chattering) and the shoulder portion of the glass bottle (so-called shoulder chattering).
【０００３】潤滑性と離型性を改善するため、金型には
潤滑離型剤によるコーティングがなされる。従来の潤滑
離型剤は、グラファイト又は二硫化モリブデンを含有す
るものが主で、金型に塗布後加熱して溶剤を揮発させ、
コーティング被膜を生成するものである。In order to improve lubricity and mold releasability, the mold is coated with a lubricant mold release agent. Conventional lubricant release agents are mainly those containing graphite or molybdenum disulfide, which are applied to a mold and then heated to volatilize the solvent,
It produces a coating film.
【０００４】また、特開昭５５−１４１５６１、特開平
１０−３２４５３０には、スパッタリングにより金型表
面に窒化ホウ素層を形成する技術が開示されている。こ
のようにして形成された窒化ホウ素層は離型性と耐久性
に優れるものであることが知られている。Further, Japanese Patent Laid-Open Nos. 55-141561 and 10-324530 disclose techniques for forming a boron nitride layer on the surface of a mold by sputtering. It is known that the boron nitride layer thus formed has excellent releasability and durability.
【０００５】[0005]
【発明が解決しようとする課題】従来のグラファイト又
は二硫化モリブデンを含有するコーティング被膜は、溶
融ガラスが作用するような高温域においては、潤滑性能
が不十分であり、また、耐久性にも問題があって、コー
ティング被膜が金型から剥離しやすく、剥離した被膜が
ガラス製品に転写され、不良品となってしまうことが多
かった。また、補助的に鉱物油の離型剤を金型に頻繁に
塗布する必要があり、作業能率が悪くなっていた。A conventional coating film containing graphite or molybdenum disulfide has insufficient lubrication performance in a high temperature range where molten glass acts, and also has a problem in durability. Therefore, the coating film is easily separated from the mold, and the separated film is often transferred to a glass product, resulting in a defective product. In addition, it is necessary to frequently apply a mold release agent of mineral oil to the mold, and the work efficiency is deteriorated.
【０００６】スパッタリングにより金型表面に窒化ホウ
素層を形成する技術は、非常にコスト高で、かつ、時間
と手間を要するので、非常に付加価値の高い特殊なガラ
ス製品（例えば高精度が要求されるレンズなど）のみに
使用されるもので、一般のガラス製品の製造においては
非現実的で、使用されていない。The technique of forming a boron nitride layer on the surface of a mold by sputtering is very costly and requires a lot of time and labor. Therefore, a special glass product with a very high added value (for example, high precision is required). Lens, etc.), which is unrealistic and not used in the manufacture of general glass products.
【０００７】本発明は、容易にコーティングを行うこと
ができ、溶融ガラスが作用する高温域においても潤滑
性、離型性に優れ、また、耐久性にも優れる潤滑離型剤
及びコーティング方法を開発することを課題としてなさ
れたものである。The present invention has developed a lubricant release agent and a coating method which can be easily coated, have excellent lubricity and release characteristics even in a high temperature range where molten glass acts, and also have excellent durability. The task was to do.
【０００８】[0008]
【課題を解決するための手段】本発明は、５〜３０ｗｔ
％の窒化ホウ素（ＢＮ）粉末を水中に分散させ、０．２
〜１ｗｔ％のバインダーを水中に溶解させてなることを
特徴とするガラス成形用金型の潤滑離型剤である。The present invention provides 5 to 30 wt.
% Boron nitride (BN) powder dispersed in water to give 0.2
A lubricant release agent for a glass molding die, characterized in that a binder of 1 wt% is dissolved in water.
【０００９】又本発明は、５〜３０ｗｔ％の窒化ホウ素
粉末と０．２〜１ｗｔ％のバインダーを有機溶剤中に分
散又は溶解させてなることを特徴とするガラス成形用金
型の潤滑離型剤である。Further, the present invention is characterized in that 5 to 30 wt% of boron nitride powder and 0.2 to 1 wt% of a binder are dispersed or dissolved in an organic solvent to lubricate and release a glass molding die. It is an agent.
【００１０】窒化ホウ素は５ｗｔ％よりも少ないと生成
されるコーティング被膜が薄くなりすぎて潤滑離型効果
が小さくなり、３０ｗｔ％よりも多いと潤滑離型剤液
（コーティング液）の流動性が損なわれ、適切なコーテ
ィングが行えない。バインダーは０．２％よりも少ない
と生成されるコーティング被膜の安定性が損なわれ、１
％で十分その効果が発現されるのでこれよりも多くする
必要がない。When the content of boron nitride is less than 5% by weight, the coating film formed becomes too thin and the lubricating release effect is reduced, and when it is more than 30% by weight, the fluidity of the lubricating release agent liquid (coating liquid) is impaired. Therefore, proper coating cannot be performed. If the binder content is less than 0.2%, the stability of the coating film produced will be impaired, and 1
%, The effect is sufficiently expressed, so there is no need to increase it more than this.
【００１１】バインダーとしては、コロイダルアルミナ
系、コロイダルシリカ系、リン酸アルミ系、セルロース
系又はアクリル系のバインダーを使用することができ
る。有機溶剤は、例えばケトン類の有機溶剤を使用でき
る。As the binder, colloidal alumina type, colloidal silica type, aluminum phosphate type, cellulose type or acrylic type binders can be used. As the organic solvent, for example, an organic solvent such as a ketone can be used.
【００１２】又本発明は、前記本発明の潤滑離型剤を金
型に塗布した後乾燥させることを特徴とするガラス成形
用金型のコーティング方法である。塗布方法は、スプレ
ーによる吹き付け、刷毛塗りなど任意の方法で良く、乾
燥は自然乾燥、乾燥炉やドライヤーなどによる強制乾燥
を問わないが、自然乾燥でよいので、従来の潤滑離型剤
のように焼き付け炉設備を保有する必要がなく設備の簡
素化と作業性が改善される。The present invention is also a coating method for a glass molding die, characterized in that the lubricating mold release agent of the present invention is applied to a die and then dried. The application method may be any method such as spraying with a brush or brush application, and the drying may be natural drying, forced drying with a drying oven or a dryer, etc. There is no need to have a baking oven facility, and the facility is simplified and workability is improved.
【００１３】本発明のコーティング方法によりコーティ
ングを行うと、金型表面に窒化ホウ素粒子の集合した被
膜が形成される。バインダーの作用により、窒化ホウ素
粒子どうし、また、窒化ホウ素粒子と金型面とが強固に
結合し、安定した被膜となる。この被膜は潤滑性及び離
型性に優れると共に熱に強く耐久性にも優れる。When coating is carried out by the coating method of the present invention, a film in which boron nitride particles are aggregated is formed on the surface of the mold. By the action of the binder, the boron nitride particles are firmly bonded to each other, and the boron nitride particles and the mold surface are firmly bonded to each other to form a stable coating film. This coating is excellent in lubricity and releasability, and also resistant to heat and durability.
【００１４】[0014]
【発明の実施の形態】実施例１：１０ｗｔ％の窒化ホウ
素粉末と０．５ｗｔ％のアルミナゾルのバインダーと水
とを混合撹拌して窒化ホウ素を水中に分散させ、バイン
ダーを水中に溶解させ、実施例１の潤滑離型剤を得た。BEST MODE FOR CARRYING OUT THE INVENTION Example 1: 10 wt% boron nitride powder, 0.5 wt% alumina sol binder and water were mixed and stirred to disperse boron nitride in water, and the binder was dissolved in water. A lubricant release agent of Example 1 was obtained.
【００１５】実施例２：１０ｗｔ％の窒化ホウ素粉末と
０．５ｗｔ％のアクリル樹脂のバインダーと有機溶剤の
メチルエチルケトンを混合撹拌して窒化ホウ素をメチル
エチルケトンに分散させ、バインダーをメチルエチルケ
トンに溶解させ、実施例２の潤滑離型剤を得た。Example 2: 10 wt% boron nitride powder, 0.5 wt% acrylic resin binder and organic solvent methyl ethyl ketone were mixed and stirred to disperse boron nitride in methyl ethyl ketone, and the binder was dissolved in methyl ethyl ketone. A lubricant release agent of 2 was obtained.
【００１６】実施例１及び実施例２の潤滑離型剤を、そ
れぞれガラスびんを成形する粗型、仕上型、口型にスプ
レーガンで吹き付けて塗布し、室温で約３０分間乾燥さ
せ、コーティングを行った。The lubricant release agents of Examples 1 and 2 were applied to a rough mold, a finishing mold, and a mouth mold for molding glass bottles by spraying with a spray gun, followed by drying at room temperature for about 30 minutes to form a coating. went.
【００１７】これらの金型を用いてあるガラスびんを成
形した。実施例１をコーティングした金型も、実施例２
をコーティングした金型も、いずれも５時間連続して問
題なくガラスびんを成形することができ、従来の潤滑離
型剤（グラファイト又は二硫化モリブデンを含有するも
の）をコーティングしたものに比べて２倍以上の数のガ
ラスびんを成形することができた。成形したガラスびん
は、潤滑離型剤の転写も、ビリ（傷）の欠点もなく、十
分な品質を有するものであった。A glass bottle was molded using these molds. The mold coated with Example 1 is also the same as Example 2.
Each of the molds coated with can mold glass bottles without any problem for 5 hours continuously, and compared with the one coated with the conventional lubricant release agent (containing graphite or molybdenum disulfide). It was possible to mold more than double the number of glass bottles. The molded glass bottle had a sufficient quality without the transfer of the lubricant release agent and the defect of crease (scratch).
【００１８】[0018]
【発明の効果】本発明によって生成されるコーティング
被膜は溶融ガラスが作用する高温においても十分な潤滑
性、離型性、耐久性を有するので、高品質のガラス製品
を成形することが可能であり、また、１回のコーティン
グで数多くのガラス製品を成形できるので、ガラス製品
の製造能率が向上する。コーティングは、金型に塗布し
て自然乾燥すればよいので、きわめて容易かつ安価に行
うことができる。The coating film produced according to the present invention has sufficient lubricity, releasability and durability even at a high temperature at which molten glass acts, so that high quality glass products can be molded. Moreover, since a large number of glass products can be molded with one coating, the production efficiency of glass products is improved. Since the coating may be applied to the mold and naturally dried, it can be performed extremely easily and inexpensively.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 佐藤 英一 神奈川県横浜市栄区若竹町34−18 (72)発明者 山中 邦雄 東京都中央区日本橋富沢町12−８ 大東潤 滑株式会社内 Ｆターム(参考） 4G015 HA02 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Eiichi Sato 34-18 Wakatake-cho, Sakae-ku, Yokohama-shi, Kanagawa (72) Inventor Kunio Yamanaka 12-8 Nihonbashi Tomizawa-cho, Chuo-ku, Tokyo Jun Daito Nameko Co., Ltd. F-term (reference) 4G015 HA02
Claims (5)
２〜１ｗｔ％のバインダーを水中に分散又は溶解させて
なることを特徴とするガラス成形用金型の潤滑離型剤1. Boron nitride powder of 5 to 30 wt% and 0.
A lubricant release agent for a glass molding die, characterized in that 2-1 wt% of a binder is dispersed or dissolved in water.
２〜１ｗｔ％のバインダーを有機溶剤中に分散又は溶解
させてなることを特徴とするガラス成形用金型の潤滑離
型剤2. Boron nitride powder of 5 to 30 wt% and 0.
A lubricating mold release agent for a glass molding die, characterized in that 2-1 wt% of a binder is dispersed or dissolved in an organic solvent.
機溶剤がケトン類の有機溶剤であることを特徴とするガ
ラス成形用金型の潤滑離型剤3. The lubricant mold release agent according to claim 2, wherein the organic solvent is an organic solvent of ketones.
て、前記バインダーがコロイダルアルミナ系、コロイダ
ルシリカ系、リン酸アルミ系、セルロース系又はアクリ
ル系のバインダーであることを特徴とするガラス成形用
金型の潤滑離型剤4. The lubricant release agent according to claim 1, 2 or 3, wherein the binder is a colloidal alumina type, colloidal silica type, aluminum phosphate type, cellulose type or acrylic type binder. Lubricant release agent for molding dies
金型に塗布した後乾燥させることを特徴とするガラス成
形用金型のコーティング方法5. A method for coating a mold for glass molding, which comprises applying the lubricant release agent according to claim 1, 2, 3 or 4 to a mold and then drying the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001313623A JP4305602B2 (en) | 2001-10-11 | 2001-10-11 | Molding method of glass products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001313623A JP4305602B2 (en) | 2001-10-11 | 2001-10-11 | Molding method of glass products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003119047A true JP2003119047A (en) | 2003-04-23 |
| JP4305602B2 JP4305602B2 (en) | 2009-07-29 |
Family
ID=19132066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001313623A Expired - Fee Related JP4305602B2 (en) | 2001-10-11 | 2001-10-11 | Molding method of glass products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4305602B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190057940A (en) * | 2017-11-21 | 2019-05-29 | (주)옵토네스트 | method of manufacturing glass fiber for optical fiber |
| WO2019221437A1 (en) * | 2018-05-14 | 2019-11-21 | (주)옵토네스트 | Method for manufacturing optical fiber |
| KR20200088096A (en) * | 2019-01-14 | 2020-07-22 | (주)옵토네스트 | method of manufacturing glass fiber with non-circular cross section |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020018432A1 (en) * | 2018-07-16 | 2020-01-23 | Corning Incorporated | Glass substrates including uniform parting agent coatings and methods of ceramming the same |
-
2001
- 2001-10-11 JP JP2001313623A patent/JP4305602B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190057940A (en) * | 2017-11-21 | 2019-05-29 | (주)옵토네스트 | method of manufacturing glass fiber for optical fiber |
| KR102015645B1 (en) * | 2017-11-21 | 2019-08-28 | (주)옵토네스트 | method of manufacturing glass fiber for optical fiber |
| WO2019221437A1 (en) * | 2018-05-14 | 2019-11-21 | (주)옵토네스트 | Method for manufacturing optical fiber |
| KR20190130367A (en) * | 2018-05-14 | 2019-11-22 | (주)옵토네스트 | method of manufacturing optical fiber |
| KR102080229B1 (en) * | 2018-05-14 | 2020-02-21 | (주)옵토네스트 | method of manufacturing optical fiber |
| KR20200088096A (en) * | 2019-01-14 | 2020-07-22 | (주)옵토네스트 | method of manufacturing glass fiber with non-circular cross section |
| KR102154349B1 (en) * | 2019-01-14 | 2020-09-10 | (주)옵토네스트 | method of manufacturing glass fiber with non-circular cross section |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4305602B2 (en) | 2009-07-29 |
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