JP2001003102A - Plastic composition of noble metal excellent in moldability and shape-holding property - Google Patents
Plastic composition of noble metal excellent in moldability and shape-holding propertyInfo
- Publication number
- JP2001003102A JP2001003102A JP11172205A JP17220599A JP2001003102A JP 2001003102 A JP2001003102 A JP 2001003102A JP 11172205 A JP11172205 A JP 11172205A JP 17220599 A JP17220599 A JP 17220599A JP 2001003102 A JP2001003102 A JP 2001003102A
- Authority
- JP
- Japan
- Prior art keywords
- noble metal
- weight
- inorganic salt
- binder
- sodium
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、造形しやすい特
性（以下、造形性という）に優れかつ造形後の造形体が
乾燥中に変形することの少ない特性（以下、保形性とい
う）に優れた貴金属可塑性組成物、特に貴金属粘土に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is excellent in characteristics that are easy to form (hereinafter, referred to as formability) and excellent in characteristics that a formed body after forming is less likely to be deformed during drying (hereinafter, referred to as form retention). Noble metal plastic compositions, especially noble metal clays.
【０００２】[0002]
【従来の技術】金銀などの貴金属宝飾品または美術工芸
品は一般に鋳造または鍛造により製造されている。しか
し、近年、金銀などの貴金属粉末を含んだ貴金属可塑性
組成物が貴金属粘土として市販されており、この貴金属
粘土を所定の形状に成形し、焼結して所定の形状を有す
る金銀などの貴金属宝飾品または美術工芸品を製造する
方法が提案されている。この方法によると、貴金属粘土
を通常の粘土細工と同じように自由に造形を行うことが
でき、造形して得られた造形体は、乾燥したのち、焼結
炉等を有する場所に運び、そこで焼結することにより極
めて簡単に貴金属宝飾品または美術工芸品を製造するこ
とができる。2. Description of the Related Art Jewelry and arts and crafts, such as gold and silver, are generally manufactured by casting or forging. However, in recent years, a noble metal plastic composition containing a noble metal powder such as gold and silver has been marketed as a noble metal clay, and this noble metal clay is molded into a predetermined shape, sintered and precious metal such as gold and silver having a predetermined shape. Methods for producing ornaments or arts and crafts have been proposed. According to this method, noble metal clay can be freely shaped in the same manner as ordinary clay work, and the shaped body obtained by shaping is dried and then carried to a place having a sintering furnace and the like. Precious metal jewelry or arts and crafts can be produced very easily by sintering.
【０００３】前記貴金属粘土は、金銀などの貴金属粉
末：５０〜９５重量％、セルローズ系水溶性バインダ
ー：０．８〜８重量％、油脂：０．１〜３重量％、界面
活性剤：０．０３〜３重量％を含有し、残りが水からな
る組成を有するものであることは知られている（特開平
４−２６７０７号公報参照）。The above-mentioned noble metal clay is composed of 50 to 95% by weight of a noble metal such as gold and silver, 0.8 to 8% by weight of a cellulose-based water-soluble binder, 0.1 to 3% by weight of fat and oil, and 0.1 to 3% by weight of a surfactant. It is known that the composition contains 0.3 to 3% by weight, with the balance being water (see JP-A-4-26707).
【０００４】[0004]
【発明が解決しようとする課題】前述のように、貴金属
粘土を通常の粘土細工と同じように自由に造形し、得ら
れた造形体を乾燥したのち焼結して所定の形状を有する
貴金属宝飾品または美術工芸品を製造するのであるが、
貴金属粘土は通常の粘土と比較して比重の重い貴金属粉
末を大量に含んだ粘土であるために、造形体は乾燥が終
了するまでの間に、その自重によって変形しやすいとい
う問題がある。As described above, the noble metal clay is freely shaped in the same manner as ordinary clay work, and the obtained shaped body is dried and sintered to form a noble metal treasure having a predetermined shape. They produce ornaments or arts and crafts.
Since noble metal clay is a clay containing a large amount of noble metal powder having a higher specific gravity than ordinary clay, there is a problem that the shaped body is easily deformed by its own weight before drying is completed.
【０００５】前記自重による造形体の変形を防止するた
めに、従来は水溶性セルロースなどのバインダーおよび
水の添加量を少なく調整していた。しかし、このバイン
ダーおよび水の添加量を少なく調整すると粘土は固くな
って微細な部分の造形がしやすくなるものの、乾燥が早
くなるので造形時間を短くしなければならず、使い難い
貴金属粘土となるので好ましくない。一方、バインダー
および水の添加量の多い貴金属粘土は十分時間をかけて
造形できるが、柔らかいので微細部分の造形がしにく
く、また、得られた造形体も柔らかくなって変形しやす
くなり、さらに乾燥時間が長くなり、造形体の長時間に
わたる乾燥は変形をより大きくするので好ましくない。In order to prevent deformation of the molded article due to its own weight, conventionally, the amount of a binder such as water-soluble cellulose and the amount of water added have been adjusted to be small. However, if the amount of addition of the binder and water is adjusted to a small amount, the clay becomes hard and the molding of the fine part is easy, but the drying time is short, so the molding time has to be shortened, and it becomes difficult to use precious metal clay. It is not preferable. On the other hand, noble metal clay with a large amount of binder and water added can be molded for a sufficient time, but it is difficult to form fine parts because it is soft, and the obtained molded body is also soft and easy to deform, further drying Longer times and longer drying of the shaped body is not preferred as it leads to greater deformation.
【０００６】[0006]
【課題を解決するための手段】そこで、本発明者らは、
かかる課題を解決すべく研究を行った結果、従来の貴金
属粘土に無機塩：１０〜１０００ｐｐｍを添加して得ら
れた貴金属粘土は、バインダーおよび水の添加量が同じ
であっても硬さが増して微細部分の造形性に優れ、さら
に早期に乾燥することもないので十分に時間をかけて造
形することができ、また造形体の乾燥中における変形が
極めて少ない、という知見を得たのである。Means for Solving the Problems Accordingly, the present inventors have:
As a result of conducting research to solve this problem, noble metal clay obtained by adding 10 to 1000 ppm of inorganic salt to conventional noble metal clay has increased hardness even when the amounts of binder and water added are the same. Thus, the inventors have found that it is possible to form with sufficient time since the fine portion is excellent in the formability of the fine portion and does not dry out early, and that the deformation of the formed body during drying is extremely small.
【０００７】この発明は、かかる知見にもとづいてなさ
れたものであって、（１）無機塩：１０〜１０００ｐｐ
ｍを含有する造形性および保形性に優れた貴金属可塑性
組成物粘土、に特徴を有するものである。The present invention has been made based on such findings, and (1) inorganic salts: 10 to 1000 pp
and a precious metal plastic composition clay having excellent moldability and shape retention containing m.
【０００８】この発明で添加する無機塩は、アルカリ金
属またはアルカリ土類金属の塩であることが好ましく、
具体的には、塩化ナトリウム、塩化カリウム、塩化カル
シウム、塩化マグネシウム、塩化バリウム、塩化ストロ
ンチウムなどの塩化物、炭酸ナトリウム、炭酸カリウム
などの炭酸塩、硫酸ナトリウムなどの硫酸塩、硝酸ナト
リウムなどの硝酸塩、燐酸ナトリウムなどの燐酸塩、酢
酸ナトリウムなどの酢酸塩、ケイ酸ナトリウムなどの珪
酸塩、亜硫酸カリウムなどの亜硫酸塩であることが好ま
しい。これらアルカリ金属またはアルカリ土類金属の塩
の中でも特に塩化物が好ましく、塩化物の中でも塩化ナ
トリウム、塩化カリウム、塩化カルシウム、塩化マグネ
シウムが一層好ましい。The inorganic salt added in the present invention is preferably an alkali metal or alkaline earth metal salt.
Specifically, chlorides such as sodium chloride, potassium chloride, calcium chloride, magnesium chloride, barium chloride, strontium chloride, sodium carbonate, carbonates such as potassium carbonate, sulfates such as sodium sulfate, nitrates such as sodium nitrate, Phosphates such as sodium phosphate, acetates such as sodium acetate, silicates such as sodium silicate, and sulfites such as potassium sulfite are preferred. Of these alkali metal or alkaline earth metal salts, chlorides are particularly preferred, and among chlorides, sodium chloride, potassium chloride, calcium chloride, and magnesium chloride are more preferred.
【０００９】無機塩の添加量を１０〜１０００ｐｐｍに
限定した理由は、その添加量が１０ｐｐｍ未満では造形
性および保形性効果が十分でないので好ましくなく、一
方、１０００ｐｐｍを越えて添加すると焼結時に焼結の
進行を阻害するので好ましくないことによるものであ
る。The reason why the amount of the inorganic salt added is limited to 10 to 1000 ppm is that it is not preferable that the amount added is less than 10 ppm because the effect of shaping and shape retention is not sufficient. This is because the progress of sintering is hindered, which is not preferable.
【００１０】この発明の造形性および保形性に優れた貴
金属可塑性組成物は、貴金属粉末：５０〜９５重量％、
バインダ−：０．８〜８重量％を含有し、残りが水から
なる組成を有する貴金属可塑性組成物、貴金属粉末：５
０〜９５重量％、バインダー：０．８〜８重量％、界面
活性剤：０．０３〜３重量％を含有し、残りが水からな
る組成を有する貴金属可塑性組成物、貴金属粉末：５０
〜９５重量％、バインダー：０．８〜８重量％、油脂：
０．１〜３重量％を含有し、残りが水からなる組成を有
する貴金属可塑性組成物、貴金属粉末：５０〜９５重量
％、バインダー：０．８〜８重量％、油脂：０．１〜３
重量％、界面活性剤：０．０３〜３重量％を含有し、残
りが水からなる組成を有する貴金属可塑性組成物、にそ
れぞれ無機塩を１０〜１０００ｐｐｍ添加したものであ
ることが一層好ましい。[0010] The noble metal plastic composition of the present invention, which is excellent in shapeability and shape retention, comprises a noble metal powder: 50 to 95% by weight,
Binder: a noble metal plastic composition containing 0.8 to 8% by weight and a balance of water, noble metal powder: 5
A noble metal plastic composition having a composition of 0 to 95% by weight, a binder: 0.8 to 8% by weight, a surfactant: 0.03 to 3% by weight, and a balance of water, a noble metal powder: 50
~ 95% by weight, binder: 0.8-8% by weight, fats and oils:
A noble metal plastic composition containing 0.1 to 3% by weight and having a balance of water, noble metal powder: 50 to 95% by weight, binder: 0.8 to 8% by weight, fat and oil: 0.1 to 3%
More preferably, the inorganic salt is added to the noble metal plastic composition containing 0.03 to 3% by weight of a surfactant and 0.03 to 3% by weight of a surfactant, and the balance is water.
【００１１】したがって、この発明は、（２）貴金属粉
末：５０〜９５重量％、バインダ−：０．８〜８重量
％、無機塩：１０〜１０００ｐｐｍを含有し、残りが水
からなる組成を有する造形性および保形性に優れた貴金
属可塑性組成物、（３）貴金属粉末：５０〜９５重量
％、バインダー：０．８〜８重量％、界面活性剤：０．
０３〜３重量％、無機塩：１０〜１０００ｐｐｍを含有
し、残りが水からなる組成を有する造形性および保形性
に優れた貴金属可塑性組成物、（４）貴金属粉末：５０
〜９５重量％、バインダー：０．８〜８重量％、油脂：
０．１〜３重量％、無機塩：１０〜１０００ｐｐｍを含
有し、残りが水からなる組成を有する造形性および保形
性に優れた貴金属可塑性組成物、（５）貴金属粉末：５
０〜９５重量％、バインダー：０．８〜８重量％、油
脂：０．１〜３重量％、界面活性剤：０．０３〜３重量
％、無機塩：１０〜１０００ｐｐｍを含有し、残りが水
からなる組成を有する造形性および保形性に優れた貴金
属可塑性組成物、に特徴を有するものである。Therefore, the present invention has the following composition: (2) Noble metal powder: 50 to 95% by weight, binder: 0.8 to 8% by weight, inorganic salt: 10 to 1000 ppm, the balance being water. Noble metal plastic composition excellent in shapeability and shape retention, (3) noble metal powder: 50 to 95% by weight, binder: 0.8 to 8% by weight, surfactant: 0.1 to 10% by weight.
A noble metal plastic composition containing 0.3 to 3% by weight, an inorganic salt: 10 to 1000 ppm, and having a composition consisting of water, and having excellent shapeability and shape retention; (4) noble metal powder: 50
~ 95% by weight, binder: 0.8-8% by weight, fats and oils:
A noble metal plastic composition containing 0.1 to 3% by weight, an inorganic salt: 10 to 1000 ppm, and having a balance of water and having excellent shapeability and shape retention, (5) noble metal powder: 5
0 to 95% by weight, binder: 0.8 to 8% by weight, fat and oil: 0.1 to 3% by weight, surfactant: 0.03 to 3% by weight, inorganic salt: 10 to 1000 ppm, the balance being It is characterized by a noble metal plastic composition having a composition composed of water and having excellent formability and shape retention.
【００１２】この発明の造形性および保形性に優れた貴
金属可塑性組成物に含まれる貴金属粉末は、５０重量％
未満では得られた焼成体の金属光沢を示すに十分な効果
が得られず、一方、９５重量％を越えて含有すると粘土
としての伸びおよび強度が低下するようになるので好ま
しくない。したがって、貴金属粉末の含有量は５０〜９
５重量％に定めた。貴金属粉末の含有量の一層好ましい
範囲は７０〜９５重量％である。The noble metal powder contained in the noble metal plastic composition of the present invention having excellent shapeability and shape retention is 50% by weight.
If the amount is less than 50%, an effect sufficient for exhibiting the metallic luster of the obtained fired body cannot be obtained. Therefore, the content of the noble metal powder is 50 to 9
It was determined to be 5% by weight. A more preferable range of the content of the noble metal powder is 70 to 95% by weight.
【００１３】この発明の造形性および保形性に優れた貴
金属可塑性組成物に含まれるバインダーは、セルロース
系バインダー、ポリビニール系バインダー、アクリル系
バインダー、ワックス系バインダー、樹脂系バインダ
ー、澱粉、ゼラチン、小麦粉などいかなるバインダーを
使用してもよいが、セルロース系バインダー、特に水溶
性セルロースが最も好ましい。これらバインダーは、加
熱すると速やかにゲル化して造形体の形状保持を容易に
するために添加するが、その添加量は０．８重量％未満
では効果がなく、一方、８重量％を越えて含有すると、
得られた造形体に微細なひび割れが発生し、光沢も減少
するので好ましくない。したがって、この発明の造形性
および保形性に優れた貴金属可塑性組成物に含まれるバ
インダーは、０．８〜８重量％に定めた。バインダー含
有量の一層好ましい範囲は０．８〜５．０重量％であ
る。[0013] The binder contained in the noble metal plastic composition having excellent formability and shape retention of the present invention includes a cellulose binder, a polyvinyl binder, an acrylic binder, a wax binder, a resin binder, starch, gelatin, Although any binder such as flour may be used, cellulosic binders, especially water-soluble cellulose, are most preferred. These binders are added for the purpose of gelling quickly upon heating to facilitate the maintenance of the shape of the molded body. However, if the amount is less than 0.8% by weight, there is no effect. Then
It is not preferable because fine cracks are generated in the obtained molded body and gloss is reduced. Therefore, the binder contained in the noble metal plastic composition having excellent shapeability and shape retention of the present invention is set to 0.8 to 8% by weight. A more preferred range for the binder content is 0.8-5.0% by weight.
【００１４】前記界面活性剤は必要に応じて添加し、添
加する場合の添加量は０．０３〜３重量％が好ましい。
また、添加する界面活性剤の種類は特に限定されるもの
ではなく、通常の界面活性剤を使用することができる。The above-mentioned surfactant is added as needed, and when added, the addition amount is preferably 0.03 to 3% by weight.
The type of surfactant to be added is not particularly limited, and a normal surfactant can be used.
【００１５】前記油脂も必要に応じて添加し、添加する
場合の添加量は０．１〜３重量％が好ましい。添加する
油脂は有機酸（オレイン酸、ステアリン酸、フタル酸、
パルミチン酸、セパシン酸、アセチルクエン酸、ヒドロ
キシ安息香酸、ラウリン酸、ミリスチン酸、カプロン
酸、エナント酸、酪酸、カプリン酸、カプリル酸）、有
機酸エステル（メチル基、エチル基、プロピル基、ブチ
ル基、オクチル基、ヘキシル基、ジメチル基、ジエチル
基、イソプロピル基、イソブチル基を有する有機酸エス
テル）、高級アルコール（オクタノール、ノナノール、
デカノール）、多価アルコール（グリセリン、アラビッ
ト、ソルビタン、）、エーテル（ジオクチルエーテル、
ジデシルエーテル）などがある。The above fats and oils are also added as necessary, and when added, the amount of addition is preferably 0.1 to 3% by weight. The added fats and oils are organic acids (oleic acid, stearic acid, phthalic acid,
Palmitic acid, sebacic acid, acetylcitric acid, hydroxybenzoic acid, lauric acid, myristic acid, caproic acid, enanthic acid, butyric acid, capric acid, caprylic acid), organic acid esters (methyl, ethyl, propyl, butyl) Octyl group, hexyl group, dimethyl group, diethyl group, isopropyl group, organic acid ester having an isobutyl group), higher alcohol (octanol, nonanol,
Decanol), polyhydric alcohols (glycerin, arabbit, sorbitan,), ethers (dioctyl ether,
Didecyl ether).
【００１６】[0016]
【発明の実施の形態】実施例 平均粒径：２０μｍの純銀粉末、平均粒径：２０μｍの
純金粉末、バインダーとしてエチルセルローズ、界面活
性剤、油脂としてフタル酸−ｎ−ジブチルおよび水を用
意し、さらに無機塩として塩化ナトリウム、塩化カリウ
ム、塩化カルシウム、塩化マグネシウム、炭酸ナトリウ
ム、硫酸ナトリウム、硝酸ナトリウム、燐酸ナトリウ
ム、酢酸ナトリウム、珪酸ナトリウム、塩化バリウム、
塩化ストロンチウム、亜硫酸カリウムを用意した。DESCRIPTION OF THE PREFERRED EMBODIMENTS Pure silver powder having an average particle diameter of 20 μm, pure gold powder having an average particle diameter of 20 μm, ethyl cellulose as a binder, a surfactant, n-dibutyl phthalate and water as fats and oils were prepared. In addition, as inorganic salts, sodium chloride, potassium chloride, calcium chloride, magnesium chloride, sodium carbonate, sodium sulfate, sodium nitrate, sodium phosphate, sodium acetate, sodium silicate, barium chloride,
Strontium chloride and potassium sulfite were prepared.
【００１７】これらを表1〜４に示される割合で配合し
混合することにより表1〜６に示される本発明貴金属粘
土１〜４２、比較貴金属粘土1〜２および従来貴金属粘
土１〜４を作製した。These are blended in the ratios shown in Tables 1 to 4 and mixed to produce the noble metal clays 1 to 42 of the present invention, comparative noble metal clays 1 to 2 and conventional noble metal clays 1 to 4 shown in Tables 1 to 6. did.
【００１８】[0018]
【表１】 [Table 1]
【００１９】[0019]
【表２】 [Table 2]
【００２０】[0020]
【表３】 [Table 3]
【００２１】[0021]
【表４】 [Table 4]
【００２２】[0022]
【表５】 [Table 5]
【００２３】[0023]
【表６】 [Table 6]
【００２４】これら本発明貴金属粘土１〜４２、比較貴
金属粘土1〜２および従来貴金属粘土１〜４について、
以下の試験を行い、その結果を表７〜１０に示すことに
より粘土特性を評価した。These noble metal clays 1 to 42 of the present invention, comparative noble metal clays 1 to 2 and conventional noble metal clays 1 to 4
The following tests were performed, and the clay properties were evaluated by showing the results in Tables 7 to 10.
【００２５】（イ）貴金属粘土の軟度試験 本発明貴金属粘土１〜４２、比較貴金属粘土1〜２およ
び従来貴金属粘土１〜４をそれぞれ図１の斜視図に示さ
れるように台２の上に置いた円筒状プラスチックケース
３に充填し、プラスチックケース３に充填された貴金属
粘土４に直径：２ｍｍの太さを有し目盛の付いた針５を
荷重：１００ｇで刺し込み、貴金属粘土４に刺し込まれ
た針５の埋没深さを測定し、その結果を表７〜１０に示
すことにより粘土の軟度を評価した。(A) Softness test of noble metal clay Noble metal clays 1 to 42 of the present invention, comparative noble metal clays 1 to 2 and conventional noble metal clays 1 to 4 were placed on a table 2 as shown in the perspective view of FIG. A needle 5 having a diameter of 2 mm and a graduated scale is pierced with a load of 100 g into the noble metal clay 4 filled in the placed plastic plastic case 3 and stabbed into the noble metal clay 4. The burial depth of the inserted needle 5 was measured, and the results are shown in Tables 7 to 10 to evaluate the softness of the clay.
【００２６】（ロ）造形体変形試験 本発明貴金属粘土１〜４２、比較貴金属粘土1〜２およ
び従来貴金属粘土１〜４を用い、直径：１０ｍｍ、長
さ：２０ｍｍの寸法を有する円柱状試験片１を作製し、
この試験片１を図２の斜視図に示されるように台２の上
に試験片の先端がＡｃｍ突出するように載せ、大気中に
２時間放置することにより乾燥させ、乾燥後、図３の側
面図に示されるように試験片1の先端が垂れ下がった変
形量Ｘを求め、これを表７〜１０に示して保形性を評価
した。(B) Deformation test of molded object A cylindrical test piece having dimensions of 10 mm in diameter and 20 mm in length using the noble metal clays 1 to 42 of the present invention, comparative noble metal clays 1 to 2 and conventional noble metal clays 1 to 4 1 is made,
As shown in the perspective view of FIG. 2, the test piece 1 was placed on the table 2 such that the tip of the test piece protruded by Acm, and was allowed to dry in the air for 2 hours. As shown in the side view, the amount of deformation X at which the tip of the test piece 1 was sagged was determined, and the results were shown in Tables 7 to 10 to evaluate the shape retention.
【００２７】（ハ）燒結特性 造形体変形試験で作製した試験片を９００℃の温度で２
時間焼成し、得られた燒結体の密度を測定し、その結果
を表７〜１０に示すことにより粘土の燒結特性を評価し
た。(C) Sintering characteristics The test piece produced in the molded body deformation test was subjected to a temperature of 900 ° C.
After firing for a time, the density of the obtained sintered body was measured, and the sintering characteristics of the clay were evaluated by showing the results in Tables 7 to 10.
【００２８】[0028]
【表７】 [Table 7]
【００２９】[0029]
【表８】 [Table 8]
【００３０】[0030]
【表９】 [Table 9]
【００３１】[0031]
【表１０】 [Table 10]
【００３２】表１〜１０に示される結果から、無機塩を
１０〜１０００ｐｐｍ含む本発明貴金属粘土１〜４２
は、無機塩を含まない従来貴金属粘土１〜４に比べて針
の埋没深さが小さいところから軟度が小さく、したがっ
て複雑な造形が可能で造形性に優れ、さらに乾燥中に発
生する造形体の変形量が小さいところから保形性に優れ
ていることがわかる。さらに、比較貴金属粘土1〜２に
示されるように、無機塩が５ｐｐｍ含有しても軟度が十
分に小さくならず、一方、無機塩が１０００ｐｐｍを越
えると燒結体の密度が十分に上がらないので好ましくな
いことがわかる。From the results shown in Tables 1 to 10, the noble metal clays of the present invention containing 10 to 1000 ppm of an inorganic salt were prepared.
Is smaller in softness due to a smaller needle burial depth than conventional noble metal clays 1 to 4 which do not contain inorganic salts, so that complex molding is possible and excellent in moldability, and furthermore, a molded body generated during drying It can be seen from the small deformation amount that the shape retention is excellent. Furthermore, as shown in Comparative Noble Metal Clays 1-2, even if the inorganic salt is contained at 5 ppm, the softness does not become sufficiently low. On the other hand, if the inorganic salt exceeds 1000 ppm, the density of the sintered body does not rise sufficiently. It turns out that it is not preferable.
【００３３】[0033]
【発明の効果】上述のように、この発明の貴金属粘土
は、従来よりも一層造形性および保形性に優れており、
より多くの人が貴金属粘土を使用して簡単に美術工芸品
および宝飾品をつくることができるなど優れた効果を奏
するものである。As described above, the noble metal clay of the present invention has more excellent formability and shape retention than before.
This is an excellent effect such that more people can easily make arts and crafts and jewelry using precious metal clay.
【図１】貴金属粘土の軟度試験を説明するための斜視説
明図である。FIG. 1 is an explanatory perspective view for explaining a softness test of a noble metal clay.
【図２】造形体変形試験を説明するための斜視説明図で
ある。FIG. 2 is an explanatory perspective view illustrating a molded body deformation test.
【図３】造形体変形試験において試験片が変形した状態
を示す側面説明図である。FIG. 3 is an explanatory side view showing a state where a test piece is deformed in a molded body deformation test.
１ 試験片 ２ 台 ３ プラスチックケース ４ 貴金属粘土 ５ 針 Reference Signs List 1 test piece 2 units 3 plastic case 4 precious metal clay 5 needle
Claims (7)
ことを特徴とする造形性および保形性に優れた貴金属可
塑性組成物。1. A noble metal plastic composition having excellent formability and shape retention, characterized by containing 10 to 1000 ppm of an inorganic salt.
−：０．８〜８重量％、無機塩：１０〜１０００ｐｐｍ
を含有し、残りが水からなる組成を有することを特徴と
する造形性および保形性に優れた貴金属可塑性組成物。2. Precious metal powder: 50 to 95% by weight, binder: 0.8 to 8% by weight, inorganic salt: 10 to 1000 ppm
A noble metal plastic composition having excellent composition and shape retention, characterized by having a composition consisting of water.
ー：０．８〜８重量％、界面活性剤：０．０３〜３重量
％、無機塩：１０〜１０００ｐｐｍを含有し、残りが水
からなる組成を有することを特徴とする造形性および保
形性に優れた貴金属可塑性組成物。3. Precious metal powder: 50 to 95% by weight, binder: 0.8 to 8% by weight, surfactant: 0.03 to 3% by weight, inorganic salt: 10 to 1000 ppm, and the rest from water A precious metal plastic composition having excellent composition and shape retention, characterized by having a composition of the formula:
ー：０．８〜８重量％、油脂：０．１〜３重量％、無機
塩：１０〜１０００ｐｐｍを含有し、残りが水からなる
組成を有することを特徴とする造形性および保形性に優
れた貴金属可塑性組成物。4. A composition comprising 50 to 95% by weight of a noble metal powder, 0.8 to 8% by weight of a binder, 0.1 to 3% by weight of a fat or oil, 10 to 1000 ppm of an inorganic salt, and the balance being water. A noble metal plastic composition having excellent formability and shape retention, characterized by having:
ー：０．８〜８重量％、油脂：０．１〜３重量％、界面
活性剤：０．０３〜３重量％、無機塩：１０〜１０００
ｐｐｍを含有し、残りが水からなる組成を有することを
特徴とする造形性および保形性に優れた貴金属可塑性組
成物。5. Precious metal powder: 50 to 95% by weight, binder: 0.8 to 8% by weight, fat and oil: 0.1 to 3% by weight, surfactant: 0.03 to 3% by weight, inorganic salt: 10 ~ 1000
A precious metal plastic composition having excellent composition and shape retention, characterized in that the composition comprises ppm and the balance is water.
リ土類金属の塩であることを特徴とする請求項１、２、
３、４または５記載の造形性および保形性に優れた貴金
属可塑性組成物。6. The method according to claim 1, wherein said inorganic salt is an alkali metal or alkaline earth metal salt.
A noble metal plastic composition having excellent formability and shape retention according to 3, 4 or 5.
リ土類金属の塩化物であることを特徴とする請求項１、
２、３、４または５記載の造形性および保形性に優れた
貴金属可塑性組成物。7. The method according to claim 1, wherein the inorganic salt is an alkali metal or alkaline earth metal chloride.
2. A noble metal plastic composition having excellent shapeability and shape retention according to 2, 3, 4 or 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17220599A JP3719050B2 (en) | 1999-06-18 | 1999-06-18 | Precious metal clay with excellent formability and shape retention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17220599A JP3719050B2 (en) | 1999-06-18 | 1999-06-18 | Precious metal clay with excellent formability and shape retention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001003102A true JP2001003102A (en) | 2001-01-09 |
| JP3719050B2 JP3719050B2 (en) | 2005-11-24 |
Family
ID=15937546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17220599A Expired - Fee Related JP3719050B2 (en) | 1999-06-18 | 1999-06-18 | Precious metal clay with excellent formability and shape retention |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3719050B2 (en) |
-
1999
- 1999-06-18 JP JP17220599A patent/JP3719050B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3719050B2 (en) | 2005-11-24 |
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