JPH08208271A - Bending of plate glass - Google Patents
Bending of plate glassInfo
- Publication number
- JPH08208271A JPH08208271A JP28216495A JP28216495A JPH08208271A JP H08208271 A JPH08208271 A JP H08208271A JP 28216495 A JP28216495 A JP 28216495A JP 28216495 A JP28216495 A JP 28216495A JP H08208271 A JPH08208271 A JP H08208271A
- Authority
- JP
- Japan
- Prior art keywords
- bending
- glass
- plate glass
- print layer
- ceramic color
- 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
- 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
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/007—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character containing a dispersed phase, e.g. particles, fibres or flakes, in a continuous phase
-
- 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
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/44—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the composition of the continuous phase
- C03C2217/45—Inorganic continuous phases
- C03C2217/452—Glass
-
- 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
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/48—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase having a specific function
- C03C2217/485—Pigments
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Composite Materials (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)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Glass Compositions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、板ガラスの曲げ加
工方法に係り、特に、セラミックカラーインクからなる
プリント層を有する板ガラスと曲げ型との間の離型性の
改善を図った板ガラスの曲げ加工方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of bending a sheet glass, and more particularly, to a method of bending a sheet glass having a mold layer having a print layer made of a ceramic color ink and a mold. Regarding the method.
【０００２】[0002]
【従来の技術】板ガラスに曲げ加工を施す手法として
は、曲げ型上にガラス板を載置し、これを軟化点付近ま
で加熱し、自重により型面上に垂下させて行う自重曲げ
法のほか、型面相互間に板ガラスを配置して型面を押し
付けて行われるプレス曲げ法や、曲げ型を真空引き可能
に形成し、この型面の側に板ガラスを吸引して密接させ
ることで行われる吸着曲げ法などがある。2. Description of the Related Art As a method for bending a plate glass, a glass plate is placed on a bending mold, heated to near the softening point, and hung down on the mold surface by its own weight. , A press bending method in which a plate glass is placed between mold surfaces and the mold surfaces are pressed against each other, or a bending mold is formed so that it can be evacuated, and the plate glass is sucked and brought into close contact with the mold surface side. There is a suction bending method.
【０００３】このうち、前記プレス曲げ法や吸着曲げ法
は、いずれも曲げ型の型面に板ガラスを強制的に密接さ
せることで行われるものであることから、離型性の善し
悪しは曲げ精度と品質とを確保するうえで重要な問題で
あった。Of these, the press bending method and the suction bending method are both performed by forcibly bringing the plate glass into close contact with the mold surface of the bending mold. Therefore, the good or bad of the releasability is the bending accuracy. It was an important issue in ensuring quality.
【０００４】このため、従来より、曲げ型における板ガ
ラスとの接触面に断熱性に富むガラス繊維布材を介在さ
せ、これにより品質の維持確保が図られていた。For this reason, conventionally, a glass fiber cloth material having a high heat insulating property is interposed on the contact surface of the bending die with the sheet glass, whereby the quality is maintained and ensured.
【０００５】一方、曲げ加工が施される板ガラスのうち
には、例えば自動車用のフロントガラスなどのように、
外部からの隠蔽ゾーンとしてその周縁部にセラミックカ
ラー焼付け層を形成する必要のあるものもある。この場
合、前記セラミックカラー焼付け層は、板ガラスの周縁
部にセラミックカラーインクを塗布することでプリント
層を形成し、これをその曲げ加工時に焼き付けることで
形成するものであった。On the other hand, among plate glasses that are subjected to bending processing, such as windshields for automobiles,
In some cases, it is necessary to form a ceramic color baking layer on the peripheral portion as a concealing zone from the outside. In this case, the ceramic color baking layer is formed by applying a ceramic color ink to the peripheral portion of the plate glass to form a print layer and baking the print layer during the bending process.
【０００６】[0006]
【発明が解決しようとする課題】ところで、前記プレス
曲げ法や吸着曲げ法の場合には、断熱性に富むガラス繊
維布材を曲げ型の型面に着設することで、クラックの発
生防止等、所期の効果を得ることができるようになって
いる。By the way, in the case of the press bending method or the suction bending method, the generation of cracks can be prevented by attaching a glass fiber cloth material having a high heat insulating property to the surface of the bending die. , You can get the desired effect.
【０００７】しかし、図２に示すように、相対的に硬質
であるガラス繊維布材２５は、その各繊維素２６が曲げ
加工を施すための曲げ型２４の圧接時に焼付け前のセラ
ミックカラーインク２２からなるプリント層23に容易に
潜り込むことができる結果、曲げ加工を終えた後におけ
るガラス繊維布材２５と板ガラス２１との間の離型性の
悪化が問題点として指摘されるに至った。However, as shown in FIG. 2, the glass fiber cloth material 25, which is relatively hard, has a ceramic color ink 22 before baking when the bending die 24 for press-bonding each fiber element 26 is bent. As a result of being able to easily sneak into the printed layer 23 consisting of, the deterioration of the releasability between the glass fiber cloth material 25 and the plate glass 21 after bending has been pointed out as a problem.
【０００８】本発明は、従来方法にみられた上記課題に
鑑みてなされたものであり、その目的は、板ガラスとガ
ラス繊維布材との間の離型性の改善を図ることができる
板ガラスの曲げ加工方法を提供することにある。The present invention has been made in view of the above problems found in the conventional method, and an object of the present invention is to provide a plate glass capable of improving the releasability between the plate glass and the glass fiber cloth material. It is to provide a bending method.
【０００９】[0009]
【課題を解決するための手段】本発明は、かかる目的を
達成すべくなされたものであり、その構成上の特徴は、
セラミックカラーインクを塗布してなるプリント層が設
けられた板ガラスをその曲げ加工温度まで加熱し、少な
くとも前記プリント層に対しては、ガラス繊維布等の耐
熱布を介在させた曲げ型の型面を圧接することにより曲
げ加工を施す板ガラスの曲げ加工方法において、前記プ
リント層を、４５０〜７００℃の温度域で結晶化するガ
ラスフリット粉末１０〜９８重量％と、４００〜６４０
℃の軟化点を持つ非晶質ガラスフリット粉末、フィラー
及び無機顔料から選ばれる１種または２種以上の混合物
２〜９０重量％からなる粉末と有機ビヒクルとを混合し
てなるセラミックカラーインクにより形成し、前記曲げ
加工温度までの加熱によって、前記結晶化するガラスフ
リット粉末を前記耐熱布の潜り込みを少なくすることに
充分な粒子径の結晶粒子に結晶化させることにある。The present invention has been made to achieve the above object, and the structural features thereof are as follows.
A plate glass provided with a print layer formed by applying a ceramic color ink is heated to a bending processing temperature thereof, and at least the print layer is provided with a bending mold surface in which a heat resistant cloth such as glass fiber cloth is interposed. In a method for bending a plate glass, which is bent by pressing, a glass frit powder that crystallizes the printed layer in a temperature range of 450 to 700 ° C., 10 to 98% by weight, and 400 to 640.
Formed by a ceramic color ink obtained by mixing an organic vehicle with a powder consisting of 2 to 90% by weight of a mixture of one or more kinds selected from amorphous glass frit powder having a softening point of ° C, a filler and an inorganic pigment. However, by heating to the bending temperature, the crystallizing glass frit powder is crystallized into crystal particles having a particle diameter sufficient to reduce the penetration of the heat resistant cloth.
【００１０】また、前記結晶化するガラスフリット粉末
が、４５０〜６３０℃の温度域で結晶化するものである
ことは、曲げ加工温度が例えば６３０〜７００℃程に設
定されることから好ましい。Further, it is preferable that the glass frit powder to be crystallized is one which crystallizes in the temperature range of 450 to 630 ° C. because the bending temperature is set to about 630 to 700 ° C., for example.
【００１１】前記の４５０〜７００℃の温度域で結晶化
するガラスフリット粉末（以下、結晶化フリット）には
４５０〜７００℃での温度域で結晶化するすべてのガラ
スを使用できる。例えば、ＰｂＯ−ＳｉＯ2 −ＺｎＯ−
Ｂ2 Ｏ3 系、ＰｂＯ−ＳｉＯ2 −Ｂ2 Ｏ3 −ＴｉＯ2
系、ＳｉＯ2 −Ｂ2 Ｏ3 −ＴｉＯ2 −Ｎａ2 Ｏ系、Ｐｂ
Ｏ−ＳｉＯ2 −ＺｎＯ−Ｂ2 Ｏ3 −ＴｉＯ2 系、ＰｂＯ
−ＳｉＯ2 −ＺｎＯ−Ｂ2 Ｏ3 −ＳｎＯ2 系などのガラ
スフリットである。Ｚｎ2 ＳｉＯ4 、ＰｂＺｎＳｉＯ
4 、ＰｂＴｉＯ2 などの結晶が析出するガラスなどがあ
る。As the glass frit powder that crystallizes in the temperature range of 450 to 700 ° C. (hereinafter referred to as crystallization frit), all the glass that crystallizes in the temperature range of 450 to 700 ° C. can be used. For example, PbO-SiO 2 -ZnO-
B 2 O 3 system, PbO-SiO 2 -B 2 O 3 -TiO 2
System, SiO 2 -B 2 O 3 -TiO 2 -Na 2 O system, Pb
O-SiO 2 -ZnO-B 2 O 3 -TiO 2 system, PbO
It is a glass frit such as --SiO 2 --ZnO--B 2 O 3 --SnO 2 system. Zn 2 SiO 4 , PbZnSiO
4 and glass in which crystals such as PbTiO 2 are deposited.
【００１２】ここで、結晶化ガラスの流動性を助けるた
めに非晶質ガラスを添加できる。かかる非晶質ガラスと
しては、軟化温度４００〜６４０℃のものが使用でき
る。例えば、ＰｂＯ−Ｂ2 Ｏ3 、ＰｂＯ−ＺｎＯ−Ｂ2
Ｏ3 、ＺｎＯ−Ｂ2 Ｏ3 −ＳｉＯ2 等を主成分の系と
し、この系に対しアルカリ、Ｆ、Ｐ2 Ｏ5 、その他の成
分を添加した非晶質ガラスなどが使用できる。Here, amorphous glass may be added to aid the fluidity of the crystallized glass. As such an amorphous glass, one having a softening temperature of 400 to 640 ° C. can be used. For example, PbO-B 2 O 3, PbO-ZnO-B 2
Amorphous glass in which O 3 , ZnO-B 2 O 3 -SiO 2 or the like is used as a main component and alkali, F, P 2 O 5 , or other components are added to this system can be used.
【００１３】フィラーは、結晶化ガラスの結晶化の際の
収縮性を制御したり、組成物全体の焼結性を制御するた
めに添加できる。例えばアルミナ、ケイ酸ジルコニウ
ム、ケイ砂、コージエライト等の耐熱性の無機質フィラ
ーの粉末が使用される。The filler can be added to control the shrinkability of the crystallized glass during crystallization and the sinterability of the entire composition. For example, powder of heat-resistant inorganic filler such as alumina, zirconium silicate, silica sand, cordierite, etc. is used.
【００１４】また無機顔料は、セラミックカラーの着色
のために添加する。例えばＭｎＯ2、ＣｏＯ、ＣｄＳ、
Ｃｒ2 Ｏ3 などの無機顔料が使用される。The inorganic pigment is added for coloring the ceramic color. For example, MnO 2 , CoO, CdS,
Inorganic pigments such as Cr 2 O 3 are used.
【００１５】上記した結晶化ガラスフリットには、非晶
質ガラスフリット粉末、フィラー及び無機質顔料から選
ばれる１種または２種以上の混合物が添加される。上記
のうちの１種または混合物の添加量が２重量％以下の場
合は、セラミックカラーとしての密着力、着色力が不充
分であり、９０重量％以上の場合は曲げ型を覆っている
ガラス繊維布材との離型性に問題が生じる。To the above-mentioned crystallized glass frit, one kind or a mixture of two or more kinds selected from amorphous glass frit powder, filler and inorganic pigment is added. If the addition amount of one or a mixture of the above is 2% by weight or less, the adhesion and coloring power as a ceramic color are insufficient, and if it is 90% by weight or more, the glass fiber covering the bending mold. There is a problem in releasability from the cloth material.
【００１６】有機ビヒクルとしては、パインオイル、エ
チレングリコールモノエチルエーテル、エチレングリコ
ールモノブチルエーテル、ジエチレングリコールモノブ
チルエーテル、ジエチレングリコールモノブチルエーテ
ルアセテートなど溶剤として使用でき、樹脂としては、
エチルセルロース、エチルヒドロキシエチルセルロー
ス、ヒドロキシプロピルセルロース、ブチルメタクリレ
ート、ロジン、ロジン誘導体及びこれらの混合物を使用
できる。As the organic vehicle, pine oil, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, diethylene glycol monobutyl ether acetate, etc. can be used as a solvent, and as the resin,
Ethyl cellulose, ethyl hydroxyethyl cellulose, hydroxypropyl cellulose, butyl methacrylate, rosin, rosin derivatives and mixtures thereof can be used.
【００１７】[0017]
【作用】図１は、本発明方法における曲げ加工時におけ
る部材相互の接触状態を模型的に示したものである。FIG. 1 is a model diagram showing the contact state between members during bending in the method of the present invention.
【００１８】すなわち、板ガラス１の適宜の位置、例え
ば、当該板ガラス１が自動車用のフロントガラスであれ
ば、目隠し用の隠蔽ゾーンを形成する必要がある周縁部
には、セラミックカラーインク３からなるプリント層２
が適宜の幅を有して塗布形成される。That is, at a suitable position of the plate glass 1, for example, when the plate glass 1 is a windshield for an automobile, a print made of the ceramic color ink 3 is formed on the peripheral portion where a concealing zone for blindfolding needs to be formed. Layer 2
Is formed by coating with an appropriate width.
【００１９】この場合、前記プリント層２は、結晶化フ
リットを固形物中に１０〜９８重量％、好ましくは２０
〜８０重量％含むセラミックカラーインク３を、例えば
スクリーン印刷方法等、適宜の塗布方法を用いて展着す
ることで形成するのが好ましい。In this case, the printed layer 2 contains 10 to 98% by weight, preferably 20% of crystallization frit in the solid matter.
It is preferable to form the ceramic color ink 3 containing about 80% by weight by spreading using a suitable coating method such as a screen printing method.
【００２０】このようにしてプリント層２が形成されて
なる板ガラス１は、加熱炉内に導入され、その曲げ加工
温度、例えば通常の自動車用の窓ガラスとして使用され
るソーダライムシリケートガラスからなる板ガラスにお
いては６２０〜７００℃程度にまで加熱される。The plate glass 1 on which the printed layer 2 is formed in this manner is introduced into a heating furnace, and its bending temperature, for example, a plate glass made of soda lime silicate glass used as a window glass for ordinary automobiles. Is heated to about 620 to 700 ° C.
【００２１】このようにしてその曲げ加工温度にまで加
熱された板ガラス１に対しては、前記プレス曲げ法や吸
着曲げ法などにより曲げ型５の型面６を圧接させること
により曲げ加工が行われる。この場合、少なくとも板ガ
ラス１の前記プリント層２との接触部位に位置すること
になる曲げ型５の型面６には、繊維径が１０μｍ前後で
ある繊維素８により形成される断熱性に富むガラス繊維
布材７が覆設されており、曲げ型５の側に固定されてい
る。The plate glass 1 heated to the bending temperature in this manner is bent by pressing the mold surface 6 of the bending mold 5 by the press bending method or the suction bending method. . In this case, a glass having a high heat insulation property, which is formed by a fiber element 8 having a fiber diameter of about 10 μm, on the mold surface 6 of the bending mold 5 which is located at least at the contact portion of the plate glass 1 with the printed layer 2. The fiber cloth material 7 is covered and fixed to the bending die 5 side.
【００２２】曲げ加工温度、例えば６３０〜７００℃程
まで加熱されたセラミックカラーインク３中の結晶化フ
リットは結晶化することにより、結晶粒子４となり、セ
ラミックカラーインク３は高粘度となる。また、その結
晶粒子は繊維径が１０μｍ前後である繊維素８により形
成される前記ガラス繊維布材７に対し、その潜り込みを
少なくすることができる充分な粒子径を有しているの
で、曲げ型５の型面６がガラス繊維布材７を介して板ガ
ラス１のプリント層２に圧接されて曲げ加工が施される
際、好ましい離型性を付与できる。The crystallization frit in the ceramic color ink 3 heated to a bending temperature, for example, about 630 to 700 ° C. is crystallized to become crystal particles 4 and the ceramic color ink 3 has a high viscosity. In addition, since the crystal particles have a sufficient particle diameter that allows the glass fiber cloth material 7 formed of the fibrous material 8 having a fiber diameter of around 10 μm to penetrate into the glass fiber cloth material 7, When the mold surface 6 of 5 is pressed against the print layer 2 of the plate glass 1 through the glass fiber cloth material 7 and bending is performed, preferable mold releasability can be imparted.
【００２３】[0023]
【実施例】本発明方法の一実施例（例１〜１１）を以下
の条件のもとで図１に示す要領に従い行った。EXAMPLE One example (Examples 1 to 11) of the method of the present invention was carried out under the following conditions according to the procedure shown in FIG.
【００２４】表１に各例のセラミックカラーインクの組
成を示す。なお、表１中の結晶化ガラスフリットの組成
を表２に示す。例１〜１１の粉末混合物を、パインオイ
ル、エチルセルロース、ロジン等からなるスクリーンオ
イル５０００（奥野製薬工業社製）にてペースト化しセ
ラミックカラーインクを用意した。このインクを 2２５
メッシュのステンレススクリーンにて、板ガラス上にプ
リント印刷し、 次いで６５０〜７００℃に加熱してプリ
ント層を焼成するとともにガラス繊維布材が覆設された
曲げ型により曲げ加工、次いで風冷強化した。Table 1 shows the composition of the ceramic color ink of each example. The composition of the crystallized glass frit in Table 1 is shown in Table 2. The powder mixture of Examples 1 to 11 was pasted with a screen oil 5000 (made by Okuno Chemical Industries Co., Ltd.) made of pine oil, ethyl cellulose, rosin, etc. to prepare a ceramic color ink. 225 this ink
The plate was printed and printed on a plate glass with a mesh stainless screen, the print layer was baked by heating at 650 to 700 ° C., and the glass fiber cloth material was bent and bent by a bending mold covered with the cloth, and then air-cooled and strengthened.
【００２５】同様にして、比較例（例１２〜１５）の組
成物もペースト化しガラス板面に、印刷し、加熱して焼
成するとともにプレス曲げ加工し、次いで風冷強化し
た。Similarly, the compositions of Comparative Examples (Examples 12 to 15) were made into a paste, printed on a glass plate surface, heated and baked, press-bent, and then air-cooled and strengthened.
【００２６】このとき、例１〜１１に係る曲げ加工温度
まで加熱されたセラミックカラーインク３中の結晶化フ
リットは、図１にあるように結晶化して結晶粒子４とな
り、セラミックカラーインク３は高粘度となる。そし
て、この結晶粒子は、繊維径が１０μｍ前後である繊維
素８により形成される前記ガラス繊維布材７に対し、そ
の潜り込みを少なくすることができる充分な粒子径を有
するものである。At this time, the crystallization frit in the ceramic color ink 3 heated to the bending temperature according to Examples 1 to 11 is crystallized into crystal particles 4 as shown in FIG. It becomes viscosity. The crystal particles have a sufficient particle diameter that allows the glass fiber cloth material 7 formed of the fibrous material 8 having a fiber diameter of about 10 μm to be less submerged.
【００２７】例えば、例３の場合、曲げ加工後、板ガラ
ス（プリント層の焼付け部分）から曲げ型のガラス繊維
布材を引き剥す際に要する力は、従来が１５ｇ／ｃｍ2
であったものを３ｇ／ｃｍ2 にまで減少させてその離型
性を向上させることができ、板ガラスに対し所望する形
状に曲げ加工を施すことができた。For example, in the case of Example 3, the force required for peeling the bending-type glass fiber cloth material from the plate glass (the baked portion of the print layer) after bending is 15 g / cm 2 in the conventional case.
It was possible to improve the mold releasability by reducing the amount to 3 g / cm 2 , and it was possible to bend the plate glass into a desired shape.
【００２８】例１２、１４はガラス繊維布材に付着し、
例１３、１５はセラミックカラーとして着色力が不充分
であった。Examples 12 and 14 adhere to a glass fiber cloth material,
Examples 13 and 15 had insufficient coloring power as ceramic colors.
【００２９】[0029]
【表１】 [Table 1]
【００３０】[0030]
【表２】 [Table 2]
【００３１】[0031]
【発明の効果】以上述べたように本発明によれば、板ガ
ラスに設けられるプリント層をセラミックカラーインク
に結晶化フリットを混練させてなるものにより形成し、
かつ、このプリント層には、ガラス繊維布材を介して曲
げ型の型面を圧接させるようにされているので、曲げ加
工時におけるプリント層に対するガラス繊維布材の潜り
込みを効果的に減少させてその離型性の向上を図ること
ができ、板ガラスに対し所望する形状での曲げ加工を施
すことができる。As described above, according to the present invention, the print layer provided on the plate glass is formed by mixing the crystallizing frit with the ceramic color ink.
Moreover, since the mold surface of the bending mold is pressed against the print layer via the glass fiber cloth material, the glass fiber cloth material can be effectively prevented from penetrating into the print layer during bending. The mold releasability can be improved, and the plate glass can be bent into a desired shape.
【図１】本発明方法による場合の部材相互の関係を示す
概要説明図FIG. 1 is a schematic explanatory view showing a mutual relation of members in the case of the method of the present invention.
【図２】従来方法による場合の部材相互の関係を示す概
要説明図FIG. 2 is a schematic explanatory view showing a mutual relation of members in the case of a conventional method.
１：板ガラス ２：プリント層 ３：セラミックカラーインク ４：結晶粒子 ５：曲げ型 ６：型面 ７：ガラス繊維布材 ８：繊維素 ２１：板ガラス ２２：セラミックカラーインク ２４：曲げ型 ２５：ガラス繊維布材 ２６：繊維素 1: Plate Glass 2: Print Layer 3: Ceramic Color Ink 4: Crystal Particles 5: Bending Mold 6: Mold Surface 7: Glass Fiber Cloth Material 8: Fiber Material 21: Plate Glass 22: Ceramic Color Ink 24: Bending Mold 25: Glass Fiber Cloth material 26: Fiber
Claims (2)
リント層が設けられた板ガラスをその曲げ加工温度まで
加熱し、少なくとも前記プリント層に対しては、ガラス
繊維布等の耐熱布を介在させた曲げ型の型面を圧接する
ことにより曲げ加工を施す板ガラスの曲げ加工方法にお
いて、前記プリント層を、４５０〜７００℃の温度域で
結晶化するガラスフリット粉末１０〜９８重量％と、４
００〜６４０℃の軟化点を持つ非晶質ガラスフリット粉
末、フィラー及び無機顔料から選ばれる１種または２種
以上の混合物２〜９０重量％からなる粉末と有機ビヒク
ルとを混合してなるセラミックカラーインクにより形成
し、前記曲げ加工温度までの加熱によって、前記結晶化
するガラスフリット粉末を前記耐熱布の潜り込みを少な
くすることに充分な粒子径の結晶粒子に結晶化させるこ
とを特徴とする板ガラスの曲げ加工方法。1. A plate glass provided with a print layer coated with a ceramic color ink is heated to a bending temperature, and at least the print layer is bent with a heat resistant cloth such as a glass fiber cloth interposed therebetween. In a method of bending a plate glass for bending by pressing the mold surface of the mold, in the print layer, 10 to 98% by weight of glass frit powder that crystallizes in a temperature range of 450 to 700 ° C. and 4
Ceramic color obtained by mixing an organic vehicle with a powder consisting of 2 to 90% by weight of a mixture of one or more kinds selected from an amorphous glass frit powder having a softening point of 00 to 640 ° C, a filler and an inorganic pigment. Formed with ink, by heating up to the bending temperature, the glass frit powder to be crystallized is crystallized into crystal particles having a particle diameter sufficient to reduce the penetration of the heat resistant cloth. Bending method.
５０〜６３０℃の温度域で結晶化するものであることを
特徴とする請求項１の板ガラスの曲げ加工方法。2. The crystallizing glass frit powder comprises 4
The plate glass bending method according to claim 1, wherein the plate glass is crystallized in a temperature range of 50 to 630 ° C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28216495A JP2793160B2 (en) | 1995-10-30 | 1995-10-30 | Sheet glass bending method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28216495A JP2793160B2 (en) | 1995-10-30 | 1995-10-30 | Sheet glass bending method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1223056A Division JPH0678170B2 (en) | 1989-08-31 | 1989-08-31 | Bending method for flat glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08208271A true JPH08208271A (en) | 1996-08-13 |
| JP2793160B2 JP2793160B2 (en) | 1998-09-03 |
Family
ID=17648940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28216495A Expired - Fee Related JP2793160B2 (en) | 1995-10-30 | 1995-10-30 | Sheet glass bending method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2793160B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002000563A1 (en) * | 2000-06-29 | 2002-01-03 | Okuno Chemical Industries Co., Ltd. | Ceramic coloring composition and method for bending flat glass |
| WO2004000746A1 (en) * | 2002-06-20 | 2003-12-31 | Asahi Glass Company, Limited | Ceramic color composition |
| WO2018057342A1 (en) * | 2016-09-23 | 2018-03-29 | Apple Inc. | Thermoformed cover glass for an electronic device |
| KR20220059689A (en) * | 2020-11-03 | 2022-05-10 | (주)육일씨엔에쓰 | Method for manuacturing 3D glasses having printed layers |
-
1995
- 1995-10-30 JP JP28216495A patent/JP2793160B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002000563A1 (en) * | 2000-06-29 | 2002-01-03 | Okuno Chemical Industries Co., Ltd. | Ceramic coloring composition and method for bending flat glass |
| JP2002020140A (en) * | 2000-06-29 | 2002-01-23 | Okuno Chem Ind Co Ltd | Ceramic color composition and method for bending sheet glass |
| JP4556004B2 (en) * | 2000-06-29 | 2010-10-06 | 奥野製薬工業株式会社 | Ceramic color composition and plate glass bending method |
| WO2004000746A1 (en) * | 2002-06-20 | 2003-12-31 | Asahi Glass Company, Limited | Ceramic color composition |
| WO2018057342A1 (en) * | 2016-09-23 | 2018-03-29 | Apple Inc. | Thermoformed cover glass for an electronic device |
| KR20220059689A (en) * | 2020-11-03 | 2022-05-10 | (주)육일씨엔에쓰 | Method for manuacturing 3D glasses having printed layers |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2793160B2 (en) | 1998-09-03 |
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