JPH08119677A - Formation of surface protecting film for glass product and ceramics - Google Patents
Formation of surface protecting film for glass product and ceramicsInfo
- Publication number
- JPH08119677A JPH08119677A JP24905094A JP24905094A JPH08119677A JP H08119677 A JPH08119677 A JP H08119677A JP 24905094 A JP24905094 A JP 24905094A JP 24905094 A JP24905094 A JP 24905094A JP H08119677 A JPH08119677 A JP H08119677A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- film
- weight
- product
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
- C03C17/322—Polyurethanes or polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
- C04B41/488—Other macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
- C04B41/4884—Polyurethanes; Polyisocyanates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、硝子製品および陶磁
器類の表面を保護し、破損時の飛散を防止する皮膜の形
成方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a film which protects the surfaces of glass products and ceramics and prevents scattering at the time of breakage.
【０００２】[0002]
【従来の技術】硝子製品は、例えば、通常の板硝子、強
化板硝子、または管状、中空状もしくは球状の製品等、
その種類および形状は多岐にわたる。また、陶磁器類も
日用食器類から花器、置き物、装飾品に到るまでその種
類は多様である。これらの硝子製品および陶磁器製品に
は、主に破損時の破片の飛散防止を目的として、表面に
保護皮膜を着けることが多い。2. Description of the Related Art Glass products are, for example, ordinary plate glass, reinforced plate glass, tubular, hollow or spherical products, etc.
There are various types and shapes. In addition, there are various types of ceramics ranging from daily tableware to vase, ornaments, and ornaments. These glass products and ceramic products are often provided with a protective film on the surface, mainly for the purpose of preventing scattering of fragments when broken.
【０００３】硝子製品の保護皮膜に関しては、例えば、
特開昭58−151350号公報（主に鏡の飛散防止）、特開平
２−180732号公報（主に蛍光灯の飛散防止）、特開平３
−273073号公報（主に蛍光灯の飛散防止）等によって数
多くの発明がすでに開示されている。これら従来の被膜
で被覆された硝子製品は、それぞれ相当の飛散防止効果
を有する。しかし、硝子製品および陶磁器類（以下、合
わせて「硝子製品等」という）の保護皮膜には、単に破
損時の飛散防止効果のみならず、数多の特性が要求され
る。例えば、耐熱性、耐衝撃性、優れた透明性、製品と
の密着性、耐アルカリ性、耐酸性、耐光性（紫外線によ
る劣化がない）等である。Regarding the protective film for glass products, for example,
JP-A-58-151350 (mainly to prevent scattering of mirrors), JP-A-2-180732 (mainly to prevent scattering of fluorescent lights), JP-A-3
A number of inventions have already been disclosed in Japanese Patent Publication No. 273073 (mainly to prevent scattering of fluorescent lamps). The glass products coated with these conventional coatings each have a considerable scattering prevention effect. However, a protective film for glass products and ceramics (hereinafter collectively referred to as "glass products and the like") is required to have not only a scattering prevention effect at the time of breakage but also many properties. For example, heat resistance, impact resistance, excellent transparency, adhesion to products, alkali resistance, acid resistance, light resistance (no deterioration by ultraviolet rays), etc.
【０００４】これまでに提案された保護皮膜は、上記の
多数の特性のいくつかは備えているが、全てを満足し得
るものではなかった。特に、耐熱性まで考慮した被膜材
料はは少なく、さらに、従来の保護皮膜は、その形成方
法（塗膜方法）にも問題が多い。The protective coatings proposed to date have some, but not all, of the numerous properties mentioned above. In particular, there are few coating materials taking heat resistance into consideration, and the conventional protective coating has many problems in its forming method (coating method).
【０００５】仮に被膜自体の或る特性が優れていても、
被膜形成材料が高価であったり、数種の塗膜を多層に重
ねる必要があることが多い。また、塗膜作業の前処理と
して製品表面の粗面化や加熱処理、製品の溶剤による脱
脂およびプライマー処理等、様々な作業工程が必要で、
塗膜作業工数の増大や設備費の増加を余儀なくされるこ
とが多い。更に、保護被膜自体も厚さが30μｍ以上、物
によっては 300μｍ近い厚膜を必要とする場合が多く、
そのような皮膜ではその透明性が損なわれるという問題
もある。Even if certain characteristics of the coating itself are excellent,
In many cases, the film-forming material is expensive, or several kinds of coating films need to be laminated in multiple layers. In addition, various pre-treatments such as roughening the surface of the product, heat treatment, degreasing with solvent of the product and primer treatment are required as pretreatment for coating work,
Often, the number of man-hours required for coating film and the cost of equipment increase. Furthermore, the protective coating itself requires a thickness of 30 μm or more, and depending on the object, a thick film close to 300 μm is often required.
There is also a problem that such a coating impairs its transparency.
【０００６】塗膜の乾燥硬化工程だけをみても、自然乾
燥法で少なくとも１〜５時間、熱硬化法でも、乾燥温
度、硬化温度の高低にもよるが、少なくとも20〜50分、
多いものでは１時間以上の時間を要するため、非常に作
業性が悪く、非能率的である。Only the drying and curing step of the coating film is performed for at least 1 to 5 hours by the natural drying method, and at least 20 to 50 minutes by the thermal curing method, depending on the drying temperature and the curing temperature.
Most of them require more than one hour, which is very inefficient and inefficient.
【０００７】前処理を必要としない被膜形成方法、また
は塗装作業が簡単な方法としてロールコーティング法、
ハケ塗り法、浸漬法、フィルム張付け法等があり、これ
らの方法では工数削減は可能であるが、被膜の均一性
（ムラ、膜切れ、泡含有等の欠陥がないこと）に欠ける
という問題が発生し易い。[0007] A film forming method which does not require pretreatment, or a roll coating method for easy coating work,
There are brush coating method, dipping method, film sticking method, etc., and these methods can reduce the number of steps, but there is a problem that the film lacks uniformity (no defects such as unevenness, film breakage, and bubble inclusion). It is easy to occur.
【０００８】[0008]
【発明が解決しようとする課題】本発明の目的は、飛散
防止効果に優れると同時に、耐熱性、耐衝撃性、透明性
その他の特性にも優れた保護皮膜を、きわめて簡易に硝
子製品等の表面に形成する方法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a protective film which is excellent not only in scattering prevention but also in heat resistance, impact resistance, transparency and other properties, and can be applied to glass products etc. very easily. It is to provide a method of forming on the surface.
【０００９】[0009]
【課題を解決するための手段】本発明は、『製品の表面
に、80〜98重量％のポリウレタン、1 〜10重量％のアク
リル系樹脂、1 〜10重量％の熱硬化性樹脂および 0.1〜
1 重量％のカップリング剤からなり、粘度が 70 〜230
ｍＰａ・ｓの塗膜形成材をスプレー法または静電吹付法
によって塗布し、熱風で焼付乾燥することを特徴とする
硝子製品および陶磁器類の表面保護皮膜の形成方法』を
要旨とする。According to the present invention, "80-98% by weight of polyurethane, 1-10% by weight of acrylic resin, 1-10% by weight of thermosetting resin and 0.1-
Consists of 1% by weight coupling agent, viscosity 70-230
A method for forming a surface protective film for glass products and ceramics, characterized in that a coating film forming material of mPa · s is applied by a spray method or an electrostatic spraying method, and baked and dried with hot air ”.
【００１０】ここで、製品の表面とは、硝子製品および
陶磁器類の外表面もしくは内表面の全部、またはこれら
表面の一部を意味する。また、塗膜形成材を構成する物
質として望ましいものは、下記のとおりである。Here, the surface of the product means the entire outer surface or inner surface of the glass product and the ceramics, or a part of these surfaces. Further, desirable substances for forming the coating film forming material are as follows.
【００１１】ポリウレタンとして、ポリエーテルポリオ
ール系（既存化学物質No.(7)-857 )、ポリエステルポリ
オール系（既存化学物質No.(7)-858 )、ポリマーポリオ
ール系（既存化学物質No.(7)-859 )およびポリエーテル
ポリオール・ポリエステルポリオール（既存化学物質N
o.(7)-867 )の単独、または２種以上の混合物。Polyurethanes such as polyether polyol type (existing chemical substance No. (7) -857), polyester polyol type (existing chemical substance No. (7) -858), polymer polyol type (existing chemical substance No. (7) -858) ) -859) and polyether polyol / polyester polyol (existing chemical substance N
o. (7) -867) alone or as a mixture of two or more.
【００１２】アクリル系樹脂として、アクリル酸エステ
ル、またはメタクリル酸エステルの単独または共重合体
であって、アクリル酸やメタクリル酸等の重合性のカル
ボン酸やヒドロキシル基、グリシジル基、メチロール基
または３級アミノ基を有する重合性モノマーの１種以上
を共重合成分として含有するもの。The acrylic resin is a homopolymer or copolymer of acrylic acid ester or methacrylic acid ester, which is a polymerizable carboxylic acid such as acrylic acid or methacrylic acid, a hydroxyl group, a glycidyl group, a methylol group or a tertiary Those containing at least one polymerizable monomer having an amino group as a copolymerization component.
【００１３】熱硬化性樹脂として、一般にポリウレタン
の架橋剤として使用されるフェノール樹脂、エポキシ樹
脂、メラミン樹脂の１種または２種以上。As the thermosetting resin, one or more of phenolic resins, epoxy resins and melamine resins which are generally used as a crosslinking agent for polyurethane.
【００１４】なお、カップリング剤としては、シランカ
ップリング剤が好適である。As the coupling agent, a silane coupling agent is suitable.
【００１５】塗膜形成材の製品表面への塗布方法として
は、スプレー法、浸漬法、ハケ塗り法、ロールコーティ
ング法等、種々の方法があるが、本発明方法ではスプレ
ー法および静電吹付法を採用する。本発明の塗膜形成材
を使用するスプレー法および静電吹付法は、製品表面の
粗面化やプライマー処理等の前処理を必要とせず、作業
の機械化、自動化が容易であり、しかも厚みの均一な塗
装膜を効率的に、かつ高い信頼性をもって施すことがで
きるからである。There are various methods such as a spray method, a dipping method, a brush coating method and a roll coating method as a method for applying the coating film forming material to the product surface. In the method of the present invention, the spray method and the electrostatic spraying method are used. To adopt. The spraying method and electrostatic spraying method using the coating film forming material of the present invention do not require pretreatment such as surface roughening or primer treatment of the product surface, are easy to mechanize and automate, and have a large thickness. This is because a uniform coating film can be applied efficiently and with high reliability.
【００１６】なお、静電吹付法とは、塗料粒子に静電気
を帯電させておいて被塗装物に吹付ける方法で、複雑な
表面形状であっても塗料の付まわりがよく、均一な塗装
ができる方法である。The electrostatic spraying method is a method in which paint particles are charged with static electricity and then sprayed onto an object to be coated. It is a possible method.
【００１７】[0017]
【作用】塗膜形成材として、前記組成のものを用いるの
は、この塗膜形成材は液状で吹付けが可能であり、乾燥
硬化が極めて短時間で済むからである。しかも、硬化し
た被膜は、１層で十分な飛散防止特性と耐衝撃性、耐熱
性、耐薬品性（耐酸性、耐アルカリ性) とを備える。こ
の被膜の厚さは任意に調整できるが、高々20〜30μm 程
度の厚さでも実用上問題のない上記の特性を発揮するか
ら、透明性という点でもまったく問題がない。The above-mentioned composition is used as the coating film-forming material because the coating film-forming material can be sprayed in a liquid state and can be dried and cured in a very short time. Moreover, the cured film has sufficient scattering prevention properties, impact resistance, heat resistance, and chemical resistance (acid resistance, alkali resistance) in one layer. The thickness of this coating can be adjusted as desired, but even if the thickness is at most about 20 to 30 μm, the above-mentioned characteristics exhibiting no practical problems will be exhibited, so that there will be no problem in terms of transparency.
【００１８】塗膜形成材の粘度を70〜230 ｍＰａ・ｓと
するのは、スプレー法または静電吹付法で塗装するには
この範囲の粘度が適当だからである。これより粘度が高
くなると塗布作業性が悪化する。一方、これより粘度が
低いと、製品の形状によっては液ダレが生じ、塗膜の均
一性が損なわれるという問題が発生する。The reason why the viscosity of the coating film forming material is 70 to 230 mPa · s is that the viscosity in this range is suitable for coating by the spray method or the electrostatic spraying method. If the viscosity is higher than this, the coating workability deteriorates. On the other hand, if the viscosity is lower than this, liquid sagging may occur depending on the shape of the product and the uniformity of the coating film may be impaired.
【００１９】塗装を製品表面の一部だけに施す場合は、
非塗装部を予め適当なシート等で覆ってから塗装を行え
ばよい。塗装すべき製品表面の大きさによって塗装に要
する時間は変わるが、いずれにしても塗装は一回でよい
から、作業能率は高い。例えば、400 mm径の球形製品の
全表面、または 400mm四方の平板の片面に塗装を施す場
合、20〜40秒で18〜27μm 程度の厚さの塗装を行うこと
ができる。なお、球形、円筒形等の製品は、回転させな
がら塗装を行うのが望ましい。When coating only a part of the product surface,
The non-painted part may be covered with an appropriate sheet in advance and then painted. The time required for coating varies depending on the size of the surface of the product to be coated, but in any case only one coating is required, so work efficiency is high. For example, when coating is applied to the entire surface of a spherical product having a diameter of 400 mm or one side of a flat plate having a side of 400 mm, it is possible to apply a coating having a thickness of about 18 to 27 μm in 20 to 40 seconds. It should be noted that it is desirable to coat a spherical or cylindrical product while rotating it.
【００２０】乾燥硬化は、熱風吹付によって行う。それ
によって、迅速に所定の特性を持つ被膜が形成される。
熱風の温度は 140〜180 ℃が適当である。吹付時間は、
塗膜厚さにもよるが 30 秒から５分程度で十分である。
乾燥硬化の後の冷却条件には特に制約はないが、２〜３
分程度の風冷を行うのが望ましい。Drying and curing are carried out by blowing hot air. As a result, a film having predetermined characteristics is quickly formed.
A suitable temperature of hot air is 140 to 180 ° C. The spray time is
Depending on the thickness of the coating, 30 seconds to 5 minutes is sufficient.
There are no particular restrictions on the cooling conditions after dry curing, but 2-3
It is desirable to perform air cooling for about a minute.
【００２１】[0021]
【実施例】以下、実施例によって本発明の被膜形成方法
と得られた保護被膜の諸特性を具体的に説明する。EXAMPLES Hereinafter, various examples of the method for forming a coating film of the present invention and various characteristics of the obtained protective coating film will be described in detail.
【００２２】1. 試料の作製 (1) 被膜形成材： ポリエステルポリオール（No.(7)-858 )・・・ 90.0 重量％ アクリル系樹脂（No.(6)-663 ) ・・・・・・ 5.0 重量％ 熱硬化性樹脂としてメラミン樹脂 ・・・・・ 5.5 重量％ カップリング剤としてシランカップリング剤・・ 0.1 重量％ を配合した粘度 120ｍＰａ・ｓのもの。1. Preparation of sample (1) Film forming material: Polyester polyol (No. (7) -858) ... 90.0% by weight Acrylic resin (No. (6) -663) ... Melamine resin as a thermosetting resin 5.0 wt% 5.5 wt% Silane coupling agent as a coupling agent ··········· 0.1 wt% viscosity 120 mPa · s.
【００２３】(2) 塗装方法 表１の試料の中、板状硝子は32秒間のスプレー法により
塗装し、照明用グローブは25秒間の静電吹付法によって
塗装した。(2) Coating Method Among the samples shown in Table 1, the plate glass was coated by the spray method for 32 seconds, and the lighting globe was coated by the electrostatic spraying method for 25 seconds.
【００２４】(3) 乾燥焼付 160 ℃の熱風を３分30秒間吹付けて架橋硬化させ、その
後２分間の風冷を行った。(3) Dry baking A hot air of 160 ° C. was blown for 3 minutes and 30 seconds to crosslink and harden, followed by air cooling for 2 minutes.
【００２５】形成された被膜の厚さは、18〜22μm であ
る。The thickness of the coating formed is 18-22 μm.
【００２６】2. 試験方法と試験結果 (1) 飛散防止性能の評価方法と判定結果を表１に示す。
試料（被覆される硝子製品）の種類と形状も表１に示す
とおりである。2. Test Method and Test Results (1) Table 1 shows the evaluation method and the judgment result of the anti-scattering performance.
The type and shape of the sample (glass product to be coated) are also shown in Table 1.
【００２７】表１から、本発明方法で被覆された硝子製
品は、どの試験方法においても満足すべき飛散防止性能
をもっていることが明らかである。It is clear from Table 1 that the glass products coated by the method of the present invention have satisfactory anti-scattering performance in any test method.
【００２８】[0028]
【表１】 [Table 1]
【００２９】(2) 透明性の評価方法と判定結果を表２に
示す。ここでは、３mm厚の透明板硝子と、その片面に前
記のスプレー法で塗膜処理を施したものを試料とした。(2) Table 2 shows the evaluation method of transparency and the judgment results. Here, a transparent glass plate having a thickness of 3 mm and one having one surface thereof coated with the above-mentioned spray method were used as samples.
【００３０】表２から明らかなように、被膜を持たない
板硝子単体と塗膜処理をした板硝子との透明性には有意
差がほとんど見られない。As is clear from Table 2, there is almost no significant difference in the transparency between the plate glass having no coating and the plate glass treated with the coating film.
【００３１】[0031]
【表２】 [Table 2]
【００３２】(3) 耐衝撃性の評価方法と判定結果 300 mm四方の被膜を持たない板硝子と、片面に前記のス
プレー法で塗膜処理をした同じサイズの硝子に 535ｇの
鋼球を落下させて、破壊する落下高さを測定した。塗膜
処理をした硝子の場合は、被膜のある面に鋼球を落とし
た。結果を表３と表４に示す。(3) Impact Resistance Evaluation Method and Judgment Result A 535 g steel ball was dropped on 300 mm square plate glass without a coating and glass of the same size which was coated on one side with the spray method described above. Then, the drop height at which it breaks was measured. In the case of glass treated with a coating film, a steel ball was dropped on the coated surface. The results are shown in Tables 3 and 4.
【００３３】表３に示すように、被膜を持たない板硝子
は、50 cm 以下の高さからの鋼球落下で破壊されてい
る。一方、被膜を持つ板硝子では、鋼球の落下高さが 8
0 cm以上のときに破壊が生じている。この結果から、本
発明方法で施した保護被膜には優れた緩衝性があり、硝
子の耐衝撃性を著しく高めていることが明らかである。As shown in Table 3, the uncoated plate glass was destroyed by dropping a steel ball from a height of 50 cm or less. On the other hand, with plate glass having a coating, the falling height of the steel ball is 8
Destruction occurs when it is over 0 cm. From this result, it is clear that the protective coating applied by the method of the present invention has an excellent buffering property and remarkably enhances the impact resistance of glass.
【００３４】[0034]
【表３】 [Table 3]
【００３５】[0035]
【表４】 [Table 4]
【００３６】(4) 耐アルカリ性の評価 前記の静電吹付法で塗膜処理を施した 180mmφの照明用
グローブを温度 70 ℃の 3.5％苛性ソーダ水溶液中に１
時間浸漬した後、水洗いし、自然乾燥させ、被膜の変化
を目視観察したところ異常は認められなかった。更に、
表１の単体落下衝撃破壊試験を行ったところ、合格であ
った。(4) Evaluation of Alkali Resistance A 180 mmφ lighting glove coated with the above electrostatic spraying method was placed in a 3.5% caustic soda aqueous solution at a temperature of 70 ° C.
After immersion for a period of time, it was washed with water, naturally dried, and visually observed for changes in the coating, and no abnormality was observed. Furthermore,
The single unit drop impact fracture test of Table 1 was successful.
【００３７】(5) 耐酸性の評価 上記耐アルカリ性評価の供試体と同じ処理を施した照明
用グローブを常温、５％硫酸液中に４時間浸漬した後、
水洗いし、自然乾燥させ、被膜の変化を目視観察したと
ころ異常は認められなかった。更に、上記(4) と同様に
表１の単体落下衝撃破壊試験を行ったところ、合格であ
った。(5) Evaluation of acid resistance After immersing the lighting globe, which has been subjected to the same treatment as the test piece for the above alkali resistance evaluation, in a 5% sulfuric acid solution at room temperature for 4 hours,
It was washed with water, naturally dried, and visually observed for changes in the film, and no abnormality was observed. Further, the single unit drop impact fracture test of Table 1 was conducted in the same manner as in (4) above, and it was successful.
【００３８】(6) 耐光性の評価 JIS R 3205 に規定される合わせ硝子耐光性試験方法を
用いた。試験条件は下記のとおりである。(6) Evaluation of light resistance A laminated glass light resistance test method specified in JIS R 3205 was used. The test conditions are as follows.
【００３９】試料は、300mm ×76mm×3.5 mm厚さの透
明硝子に、前記のスプレー法で塗膜処理を施したもので
ある。The sample is a transparent glass having a thickness of 300 mm × 76 mm × 3.5 mm, which has been subjected to coating film treatment by the above-mentioned spraying method.
【００４０】 750Ｗ±50Ｗの石英ガラス水銀灯に相当
する光源を持つ温度調整可能な紫外線照射装置を用い
た。A temperature-adjustable ultraviolet irradiation device having a light source corresponding to a 750 W ± 50 W quartz glass mercury lamp was used.
【００４１】45±5 ℃に保持された装置内で塗膜面を
光源側として、光源から 230 mm の距離に供試体を置
き、紫外線を 100時間照射した。The test piece was placed at a distance of 230 mm from the light source with the coating surface as the light source side in the apparatus maintained at 45 ± 5 ° C., and ultraviolet rays were irradiated for 100 hours.
【００４２】上記照射後の試料の可視光線透過率の測
定を行い、次の (1)式によって減少率 (％) を算出し
た。The visible light transmittance of the sample after the above irradiation was measured, and the reduction rate (%) was calculated by the following equation (1).
【００４３】 減少率 (％) ＝〔（ａ−ｂ）／ａ〕× 100 ・・・・(1) ただし、ａは、紫外線照射前の可視光線透過率（％） ｂは、紫外線照射後の可視光線透過率（％） 上記の測定結果は、ａ＝89.1、ｂ＝88.1 であった。従
って、減少率 (％) ＝〔 (89.1−88.5)/89.1〕×100 ＝
0.67 ％である。Reduction rate (%) = [(a−b) / a] × 100 (1) where a is the visible light transmittance (%) before irradiation with ultraviolet light and b is the transmittance after irradiation with ultraviolet light. Visible light transmittance (%) The above measurement results were a = 89.1 and b = 88.1. Therefore, the reduction rate (%) = [(89.1-88.5) /89.1] x 100 =
It is 0.67%.
【００４４】減少率 10 ％以下が要求値であるから、本
発明方法で製造したものは、十分にこの要求値を満たし
ている。Since the reduction rate of 10% or less is the required value, the product manufactured by the method of the present invention sufficiently satisfies this required value.
【００４５】なお、紫外線照射後の供試体の変色、発
泡、濁りの有無を目視で調べたところ異常はまったく認
められなかった。Visual inspection of the specimen after ultraviolet irradiation for discoloration, foaming and turbidity revealed no abnormalities.
【００４６】[0046]
【発明の効果】実施例に具体的に示したとおり、本発明
方法で形成した表面保護被膜は、飛散防止効果に加え
て、耐熱性、耐衝撃緩和性、耐薬品性等、多くの優れた
特性を有する。これらの特性は１層の比較的薄い被膜で
十分に確保できるから、透明性の点でも問題がない。従
って、透明硝子の本来の特性を失わせることがなく、ま
た塗装した硝子の表面に施した場合には、その装飾性を
損なうことがない。陶磁器表面に施した場合にも、その
独特の風合いや意匠性を保たせることが可能である。な
お、本発明方法で保護被膜を着けた板硝子を通常どおり
に梱包し、72時間のトラック輸送を行った後に検査した
ところ、被膜の疵発生はまったく認められず、この被膜
が耐加傷性にも優れていることが確認された。As concretely shown in the examples, the surface protective film formed by the method of the present invention has many excellent properties such as heat resistance, impact resistance, chemical resistance, etc. in addition to the scattering prevention effect. Have characteristics. Since these characteristics can be sufficiently secured by a relatively thin coating of one layer, there is no problem in transparency. Therefore, the original characteristics of the transparent glass are not lost, and when it is applied to the surface of the coated glass, the decorativeness thereof is not impaired. Even when applied to the surface of ceramics, it is possible to maintain its unique texture and design. Incidentally, the plate glass coated with the protective coating by the method of the present invention was packed as usual, and was inspected after carrying out truck transportation for 72 hours, no flaw generation of the coating was observed, and this coating was scratch resistant. Was also confirmed to be excellent.
【００４７】本発明方法は、塗装、乾燥硬化等の作業時
間が短く、自動化も容易であるから量産品の処理にも好
適であり、製品コストの低減に大きく貢献できる。The method of the present invention is suitable for processing mass-produced products because it requires only a short working time such as coating and drying and curing, and is easy to automate, and can greatly contribute to the reduction of product cost.
【００４８】[0048]
Claims (2)
％のアクリル系樹脂、1 〜10重量％の熱硬化性樹脂およ
び 0.1〜1 重量％のカップリング剤からなり、粘度が 7
0 〜230 ｍＰａ・ｓの塗膜形成材をスプレー法または静
電吹付法によって製品の表面に塗布し、熱風で焼付乾燥
することを特徴とする硝子製品および陶磁器類の表面保
護皮膜の形成方法。1. A composition comprising 80 to 98% by weight of polyurethane, 1 to 10% by weight of an acrylic resin, 1 to 10% by weight of a thermosetting resin and 0.1 to 1% by weight of a coupling agent, and having a viscosity of 7
A method for forming a surface protective coating for glass products and ceramics, which comprises applying a coating film forming material of 0 to 230 mPa · s to the surface of a product by a spray method or an electrostatic spraying method, and baking and drying with hot air.
ーテルポリオール系、ポリエステルポリオール系、ポリ
マーポリオール系およびポリエーテルポリオール・ポリ
エステルポリオール系の中から選んだ１種または２種以
上の混合物を使用し、アクリル系樹脂として、アクリル
酸エステルまたはメタクリル酸エステルの単独または共
重合体であって、重合性のカルボン酸、ヒドロキシル
基、グリシジル基、メチロール基または３級アミノ基を
有する重合性モノマーの１種以上を共重合成分として含
有するアクリル系樹脂を用いる請求項１に記載の表面保
護皮膜の形成方法。2. One or a mixture of two or more selected from a polyether polyol type, a polyester polyol type, a polymer polyol type and a polyether polyol / polyester polyol type is used as the polyurethane of the coating film forming material, As the acrylic resin, a homopolymer or copolymer of acrylic acid ester or methacrylic acid ester, and one or more polymerizable monomers having a polymerizable carboxylic acid, a hydroxyl group, a glycidyl group, a methylol group or a tertiary amino group. The method for forming a surface protective film according to claim 1, wherein an acrylic resin containing a copolymer as a copolymer component is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24905094A JPH08119677A (en) | 1994-10-14 | 1994-10-14 | Formation of surface protecting film for glass product and ceramics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24905094A JPH08119677A (en) | 1994-10-14 | 1994-10-14 | Formation of surface protecting film for glass product and ceramics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08119677A true JPH08119677A (en) | 1996-05-14 |
Family
ID=17187273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24905094A Pending JPH08119677A (en) | 1994-10-14 | 1994-10-14 | Formation of surface protecting film for glass product and ceramics |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08119677A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2229919A1 (en) * | 2003-08-29 | 2005-04-16 | Safeglass, S.L. | Use of resins for application on the surfaces of glass or similar objects |
| JP2005314203A (en) * | 2004-04-01 | 2005-11-10 | Narumi China Corp | Impact-resistant pottery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51101016A (en) * | 1975-03-04 | 1976-09-07 | Kamaya Kagaku Kogyo Co Ltd | GARASUBINNOCHAKUSHOKUHOHO |
| JPS5469125A (en) * | 1977-11-15 | 1979-06-02 | Toyo Ink Mfg Co | Tempered glass container |
| JPS6341629A (en) * | 1986-08-06 | 1988-02-22 | Japan Electronic Control Syst Co Ltd | Electronic control fuel injection system for internal combustion engine |
-
1994
- 1994-10-14 JP JP24905094A patent/JPH08119677A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51101016A (en) * | 1975-03-04 | 1976-09-07 | Kamaya Kagaku Kogyo Co Ltd | GARASUBINNOCHAKUSHOKUHOHO |
| JPS5469125A (en) * | 1977-11-15 | 1979-06-02 | Toyo Ink Mfg Co | Tempered glass container |
| JPS6341629A (en) * | 1986-08-06 | 1988-02-22 | Japan Electronic Control Syst Co Ltd | Electronic control fuel injection system for internal combustion engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2229919A1 (en) * | 2003-08-29 | 2005-04-16 | Safeglass, S.L. | Use of resins for application on the surfaces of glass or similar objects |
| JP2005314203A (en) * | 2004-04-01 | 2005-11-10 | Narumi China Corp | Impact-resistant pottery |
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