JPS6357672A - Gold powder for golden ink - Google Patents
Gold powder for golden inkInfo
- Publication number
- JPS6357672A JPS6357672A JP61202869A JP20286986A JPS6357672A JP S6357672 A JPS6357672 A JP S6357672A JP 61202869 A JP61202869 A JP 61202869A JP 20286986 A JP20286986 A JP 20286986A JP S6357672 A JPS6357672 A JP S6357672A
- Authority
- JP
- Japan
- Prior art keywords
- gold
- powder
- fatty acid
- polyethylene glycol
- gold powder
- 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
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 36
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 36
- 239000000194 fatty acid Substances 0.000 claims abstract description 36
- 229930195729 fatty acid Natural products 0.000 claims abstract description 36
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 36
- 239000000843 powder Substances 0.000 claims abstract description 30
- -1 fatty acid ester Chemical class 0.000 claims abstract description 19
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 16
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 15
- 125000004494 ethyl ester group Chemical group 0.000 claims abstract description 5
- 239000010931 gold Substances 0.000 claims description 48
- 229910052737 gold Inorganic materials 0.000 claims description 48
- 239000002932 luster Substances 0.000 abstract description 23
- 239000011248 coating agent Substances 0.000 abstract description 14
- 238000000576 coating method Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010951 brass Substances 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 230000001603 reducing effect Effects 0.000 abstract description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 239000000976 ink Substances 0.000 description 43
- 238000007639 printing Methods 0.000 description 16
- 239000002184 metal Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 239000000203 mixture Substances 0.000 description 11
- 238000002156 mixing Methods 0.000 description 10
- HPEUJPJOZXNMSJ-UHFFFAOYSA-N Methyl stearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC HPEUJPJOZXNMSJ-UHFFFAOYSA-N 0.000 description 8
- MVLVMROFTAUDAG-UHFFFAOYSA-N ethyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC MVLVMROFTAUDAG-UHFFFAOYSA-N 0.000 description 6
- QSQLTHHMFHEFIY-UHFFFAOYSA-N methyl behenate Chemical compound CCCCCCCCCCCCCCCCCCCCCC(=O)OC QSQLTHHMFHEFIY-UHFFFAOYSA-N 0.000 description 6
- FLIACVVOZYBSBS-UHFFFAOYSA-N Methyl palmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC FLIACVVOZYBSBS-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- CAMHHLOGFDZBBG-UHFFFAOYSA-N epoxidized methyl oleate Natural products CCCCCCCCC1OC1CCCCCCCC(=O)OC CAMHHLOGFDZBBG-UHFFFAOYSA-N 0.000 description 4
- JIZCYLOUIAIZHQ-UHFFFAOYSA-N ethyl docosenyl Chemical compound CCCCCCCCCCCCCCCCCCCCCC(=O)OCC JIZCYLOUIAIZHQ-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000007646 gravure printing Methods 0.000 description 4
- 238000007645 offset printing Methods 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 229910001111 Fine metal Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- XIRNKXNNONJFQO-UHFFFAOYSA-N ethyl hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)OCC XIRNKXNNONJFQO-UHFFFAOYSA-N 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- CMGDVUCDZOBDNL-UHFFFAOYSA-N 4-methyl-2h-benzotriazole Chemical compound CC1=CC=CC2=NNN=C12 CMGDVUCDZOBDNL-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229940067592 ethyl palmitate Drugs 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229940092288 polyethylene glycol 11000 Drugs 0.000 description 1
- 229940113115 polyethylene glycol 200 Drugs 0.000 description 1
- 229940068886 polyethylene glycol 300 Drugs 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、印刷物として非常に優れた金属光沢を有し、
かつビヒクルと混合して長期間放置しても変色せず、優
れた金属光沢が維持できる金インキ用金粉に関するもの
である。[Detailed Description of the Invention] [Industrial Application Field] The present invention has excellent metallic luster as a printed matter,
The present invention also relates to gold powder for gold ink that does not discolor even when mixed with a vehicle and left for a long period of time and maintains excellent metallic luster.
金粉（片状黄銅金属粉）を用いた金色印刷には、あらか
じめ金工インキで印刷しその上に金粉を振りかけたり、
または印刷直前に金粉とビヒクルを混合し金インキにし
て印刷する方法がある。Gold printing using gold powder (flake brass metal powder) involves printing with metal ink in advance and sprinkling gold powder on top.
Alternatively, there is a method of mixing gold powder and vehicle immediately before printing to make gold ink.
しかしこれらは作業能率や環境衛生の点から、あらかじ
め金粉とビヒクルを混合した金インキで印刷する方法が
望まれていた。しかし金粉とビヒクルをあらかじめ混合
した金インキは金粉が銅合金粉であるがため、ビヒクル
中の遊離酸などの活性酸基や、微量水分などにより徐々
に酸化され、金属光沢がなくなり、長期においては変色
まで至ることがある。これらの欠点を改善する方法とし
て金粉と反応の少ないビヒクルを用いたり、防錆剤とし
てアミン化合物を添加する金インキ組成物（特開昭５１
−１１５１０５号公報、特公昭５５−２７１１９号公報
）が提案されている。However, from the viewpoint of work efficiency and environmental hygiene, a method of printing with gold ink pre-mixed with gold powder and vehicle has been desired. However, since the gold powder is a copper alloy powder in the case of gold ink made by pre-mixing gold powder and a vehicle, it gradually oxidizes due to active acid groups such as free acids in the vehicle and trace amounts of moisture, and loses its metallic luster over a long period of time. It may even lead to discoloration. Methods to improve these drawbacks include using a vehicle that is less reactive with gold powder, and gold ink compositions that add an amine compound as a rust preventive agent (Japanese Patent Laid-Open No. 51
-115105, Japanese Patent Publication No. 55-27119) have been proposed.
しかしながら本発明者の研究によれば、これらの金イン
キは、金粉の変色防止効果は認められるものの、金イン
キとしての最大の特長である金属光沢の消失が早く、貯
蔵安定性において不十分である。However, according to the research of the present inventor, although these gold inks have an effect of preventing discoloration of gold powder, the metallic luster, which is the most important feature of gold inks, quickly disappears, and the storage stability is insufficient. .
一方、印刷物の金属光沢とは、ビヒクル中の金粉がイン
キ膜表面に界面張力により急速に浮上して配列（リーフ
ィング現象と言っている）することにより、優れた金属
光沢を発するようになる。On the other hand, the metallic luster of printed matter is caused by the gold powder in the vehicle rapidly floating and arranging on the surface of the ink film due to interfacial tension (referred to as a leafing phenomenon), resulting in an excellent metallic luster.
このため金色印刷では印刷速度を遅くしたり、塗膜を厚
くする、二度印刷するなどして金粉のリーフィング現象
を最大限生かす方法が取られてきた。For this reason, in gold printing, methods have been used to make the most of the leafing phenomenon of gold powder, such as slowing the printing speed, thickening the coating, and printing twice.
しかし最近では印刷工程の自動化、印刷機の高速化、経
済的理由などから他のインキと同じ印刷方法が採られ、
金粉の有するリーフィング現象が十分に得られず、金色
印刷物も金属光沢の悪いものになってきた。However, in recent years, due to automation of the printing process, faster printing presses, and economical reasons, the same printing methods as other inks have been adopted.
The leafing phenomenon of gold powder cannot be sufficiently obtained, and gold printed matter also has poor metallic luster.
したがって、ビヒクル中において従来の金粉より、より
リーフィング性の発揮できる金粉が必要となってきたが
、まだそのような金粉は見出されていない。Therefore, there has been a need for a gold powder that can exhibit better leafing properties in a vehicle than conventional gold powders, but such a gold powder has not yet been found.
金インキに使用する金粉は平均粒径１０μｍ以下の徽−
細な金属粉である。高速オフセット印刷用には印刷適性
を良くするため５μ麟以下の非常に細かい金属粉が用い
られている。The gold powder used in gold ink has an average particle size of 10 μm or less.
It is a fine metal powder. For high-speed offset printing, very fine metal powder of 5 μm or less is used to improve printability.
特に金粉のような銅を主成分とする金属粉は、細かくな
ればなるほど酸化され易く、金インキにした場合、ビヒ
クルなどと反応し夏期では約１カ月で金属光沢が消失し
てしまう。これは金インキを工業的に使用する上で問題
となり、すくなくとも３力月以上は初期の金属光沢を維
持することが必要である。In particular, the finer the metal powder, such as gold powder, whose main component is copper, the more easily it is oxidized, and when made into gold ink, it reacts with vehicles and loses its metallic luster in about a month in summer. This becomes a problem when using gold ink industrially, and it is necessary to maintain the initial metallic luster for at least three months or more.
従来から金粉はその製造工程において脂肪酸（ステアリ
ン酸などの高級脂肪酸）で均一に表面処理されている。Traditionally, gold powder has been surface-treated uniformly with fatty acids (higher fatty acids such as stearic acid) during the manufacturing process.
これが優れた金属光沢や純金色に近い色調を金粉が呈す
る理由になっており、金色印刷用顔料として広く利用さ
れてきた。しかし金インキ用金粉としては脂肪酸によっ
て得られるリーフィング性能だけでは不十分になってき
た。This is the reason why gold powder exhibits excellent metallic luster and a color tone close to that of pure gold, and has been widely used as a pigment for gold printing. However, leafing performance obtained by fatty acids alone has become insufficient as gold powder for gold ink.
またビヒクル中に微量の活性酸基や水分が存在すると脂
肪酸被覆（一部分鋼ステアレートなどの金属石けんを形
成している）は容易に置換してしまいビヒクルと金粉が
なじみリーフィング現象が得られなくなる欠点を有して
いる。In addition, if there is a trace amount of active acid groups or water in the vehicle, the fatty acid coating (partially forming metal soaps such as steel stearate) will be easily replaced, and the vehicle and gold powder will mix, making it impossible to obtain the leafing phenomenon. have.
一方、ベンゾトリアゾール、トリルトリアゾール、アミ
ン化合物などの有機防錆剤で金粉を処理する方法は、粗
い金粉に対しては有効であるが、１０μｍ以下の微細な
金粉に対しては、その防錆保護膜が、逆に金粉の色調を
変えたり、リーフィング現象を阻害し、金インキ用金粉
として使用できないものであった。On the other hand, the method of treating gold powder with an organic rust preventive agent such as benzotriazole, tolyltriazole, or amine compound is effective for coarse gold powder, but it is effective for treating fine gold powder with a diameter of 10 μm or less. On the contrary, the film changed the color tone of the gold powder and inhibited the leafing phenomenon, making it impossible to use it as gold powder for gold ink.
本発明者は、金粉表面に均一に処理された脂肪酸（一部
分鋼と脂肪酸が反応し金属石けんを形成している）によ
って得られている優れた色調、光沢を保持し、かつビヒ
クルに混合した場合、従来の金粉よりリーフィング性が
良く、しかもビヒクルと接触してもそのリーフィング現
象が悪くならず、長期間金属光沢を維持する金粉を見出
すため種々の研究を行った結果、本発明を完成したもの
である。The present inventor has found that when the gold powder surface is uniformly treated with fatty acids (steel and fatty acids partially react to form metallic soap), the excellent color tone and luster obtained are maintained, and when mixed in a vehicle. The present invention was completed as a result of various research conducted in order to find a gold powder that has better leafing properties than conventional gold powders, does not deteriorate its leafing phenomenon even when it comes into contact with a vehicle, and maintains its metallic luster for a long period of time. It is.
即ち本発明は、脂肪酸で処理した平均粒径１０μｍ以下
の片状黄胴金属粉１００重量部に対し、０．５〜１０重
量部のポリエチレングリコール、及び０．５〜１０重量
部の脂肪酸エステルが被覆された金インキ用金粉である
。That is, in the present invention, 0.5 to 10 parts by weight of polyethylene glycol and 0.5 to 10 parts by weight of fatty acid ester are added to 100 parts by weight of flaky yellow body metal powder with an average particle diameter of 10 μm or less treated with a fatty acid. This is coated gold powder for gold ink.
本発明の脂肪酸で処理した片状黄銅金属粉とは機械粉砕
法で製造されるブロンズパウダー、あるいは金粉と言わ
れているものである。The flaky brass metal powder treated with the fatty acid of the present invention is what is called bronze powder or gold powder produced by a mechanical pulverization method.
粒子の大きさを１０μｍ以下としたのは、それより粗い
粒度になると、版の目ヅマリあるいは印刷適性を著しく
悪くしてしまい好ましくないためである。The reason why the particle size is set to 10 μm or less is because a coarser particle size is undesirable because it causes dullness of the plate or significantly deteriorates printability.
本発明のポリエチレングリコールとは
（−ＣＨｚＣＩｂＯ−）−−で表示される線状ポリエー
テルで具体的にはポリエチレングリコールＩ２００、ポ
リエチレングリコール１１３００、ポリエチレングリコ
ール＃４００、ポリエチレングリコール１１６００、ポ
リエチレングリコール１１０００ 、ポリエチレングリ
コール＃２０００ 、ポリエチレングリコール１１４０
００などが挙げられる。The polyethylene glycol of the present invention is a linear polyether represented by (-CHzCIbO-)-- and specifically includes polyethylene glycol I200, polyethylene glycol 11300, polyethylene glycol #400, polyethylene glycol 11600, polyethylene glycol 11000, polyethylene glycol #2000, polyethylene glycol 1140
Examples include 00.
ポリエチレングリコールの量は金属粉１００重景部に対
し、０．５〜１０重量部が良い。０．５重量部より少な
いと、十分なり−フィング効果とビヒクルと混合した後
の貯蔵安定性が良くならない。The amount of polyethylene glycol is preferably 0.5 to 10 parts by weight per 100 parts by weight of the metal powder. If it is less than 0.5 part by weight, the fusing effect and storage stability after mixing with a vehicle will not be improved enough.
ポリエチレングリコールの量は多いほどビヒクル中での
リーフィング性が良くなるが１０重量部以上になると金
粉とビヒクルの密着性に問題が生じ印刷面から金粉が取
れるため好ましくない。The larger the amount of polyethylene glycol, the better the leafing properties in the vehicle, but if it exceeds 10 parts by weight, problems arise in the adhesion between the gold powder and the vehicle, which is undesirable because the gold powder can be removed from the printed surface.
ポリエチレングリコールの最適添加量は金属粉１００重
量部に対し２〜６重量部である。The optimum amount of polyethylene glycol to be added is 2 to 6 parts by weight per 100 parts by weight of metal powder.
ポリエチレングリコールの金属粉への被覆方法はポリエ
チレングリコールの分子量によって変えた方が良い。つ
まり分子量４００以下の液状ポリエチレングリコールで
あればミキサーのような混合機で被覆すれば良い、一方
分子量がそれ以上でワックス状あるいはロウ状固体のポ
リエチレングリコールであればボールミルあるいはアジ
テータミルなどで被覆した方が良い。The method of coating metal powder with polyethylene glycol should be changed depending on the molecular weight of the polyethylene glycol. In other words, liquid polyethylene glycol with a molecular weight of 400 or less can be coated with a mixer, while waxy or waxy solid polyethylene glycol with a molecular weight higher than 400 can be coated with a ball mill or agitator mill. is good.
本発明の脂肪酸エステルとは脂肪酸メチルまたはエチル
エステルが好ましく、具体的にはパルミチン酸メチル、
バルミチン酸エチル、ステアリン酸メチル、ステアリン
酸エチル、ベヘン酸メチル、ベヘン酸エチル、などが挙
げられる。The fatty acid ester of the present invention is preferably a fatty acid methyl or ethyl ester, specifically methyl palmitate,
Examples include ethyl balmitate, methyl stearate, ethyl stearate, methyl behenate, ethyl behenate, and the like.
脂肪酸メチルまたはエチルエステル以外の脂肪酸エステ
ルは金粉のり−フィング性、色調を悪くし好ましくない
。Fatty acid esters other than fatty acid methyl or ethyl esters are undesirable because they impair gold powder adhesion and color tone.
脂肪酸メチルまたはエチルエステルの中でも特に好まし
い脂肪酸エステルは、脂肪酸の炭素数１６以上が良＜、
１２以下の脂肪酸エステルはややり−フィング性を悪し
、ポリエチレングリコールをより多く添加する必要が有
る。Particularly preferable fatty acid esters among fatty acid methyl or ethyl esters include fatty acids having 16 or more carbon atoms.
Fatty acid esters having a molecular weight of 12 or less have somewhat poor fusing properties, and it is necessary to add more polyethylene glycol.
脂肪酸エステルの量は金属粉１００重景部に対し０．５
〜１０重量部が良い。０．５重量部より少ないと、塗膜
の平滑性、金粉の分散性が良くならない。１０重量部以
上になると金インキとして紙への密着性などに悪影響を
与え好ましくない。The amount of fatty acid ester is 0.5 per 100 parts of metal powder.
~10 parts by weight is good. If the amount is less than 0.5 part by weight, the smoothness of the coating film and the dispersibility of the gold powder will not improve. If it exceeds 10 parts by weight, it is not preferable because it adversely affects the adhesion of gold ink to paper.
ポリエチレングリコールと脂肪酸エステルを併用するの
は、金粉のビヒクル中での分散性と塗■９の平滑性を改
善するためである。つまりポリエチレングリコールだけ
であると、あまりにもビヒクルとの相溶性が悪いため、
ビヒクルと金粉が分離し、印刷物の塗膜面の平滑性を悪
（し、また金粉が取れることがあるためである。脂肪酸
エステルの最適量はポリエチレングリコールと同量が良
く、金属粉１００重量部に対し２〜６重量部である。The reason why polyethylene glycol and fatty acid ester are used together is to improve the dispersibility of the gold powder in the vehicle and the smoothness of the coating. In other words, polyethylene glycol alone has poor compatibility with the vehicle, so
This is because the vehicle and gold powder will separate, impairing the smoothness of the coated surface of the printed matter, and gold powder may also be removed.The optimal amount of fatty acid ester is the same amount as polyethylene glycol, and 100 parts by weight of metal powder. 2 to 6 parts by weight.
本発明の金インキ用金粉が金インキとして優れた金属光
沢、貯蔵安定性を示す理由については、どのような結合
あるいは作用をしているか十分に解明されていないが次
のことが考えられる。The reason why the gold powder for gold ink of the present invention exhibits excellent metallic luster and storage stability as a gold ink is thought to be as follows, although it is not fully understood what kind of bond or action it has.
ポリエチレングリコールで金粉を被覆することは、あら
かじめ表面に形成されていた脂肪酸あるいは金属石けん
などと相互作用して、ビヒクルと相溶性のない保護膜が
形成される。このような保護膜を有する金粉をビヒクル
と混合して印刷すると、金粉はインキ膜表面に界面張力
により急速に浮上して配列し、優れた金属光沢を発する
ようになる０本発明の保護膜を有する金粉のり一フィン
グ性は、従来の脂肪酸処理による金粉のリーフィング性
より強く、非常に早く塗膜表面に金粉が浮き上り、印刷
物の金属光沢を良くするのであろう。When gold powder is coated with polyethylene glycol, it interacts with fatty acids or metal soaps that have previously been formed on the surface, forming a protective film that is incompatible with the vehicle. When gold powder having such a protective film is mixed with a vehicle and printed, the gold powder rapidly floats and arranges on the surface of the ink film due to interfacial tension, producing an excellent metallic luster. The gold powder's adhesion properties are stronger than the leafing properties of gold powder obtained by conventional fatty acid treatment, and the gold powder rises to the coating surface very quickly, improving the metallic luster of printed matter.
さらに本発明の保護膜はビヒクル中の活性酸基や水分の
影響に対しても、ビヒクルと金粉がなじむのを防止する
効果があり、長期間ビヒクルと接触していてもリーフィ
ング性を維持するのであろう。Furthermore, the protective film of the present invention has the effect of preventing the vehicle from blending with the gold powder against the effects of active acid groups and moisture in the vehicle, and maintains leafing properties even when in contact with the vehicle for a long period of time. Probably.
ポリエチレングリコールは銅に対して腐食作用が非常に
少ないばかりでなく、ある程度の還元作用があり、この
ことが長期にわたり貯蔵安定性が得られる理由とも考え
られる。Polyethylene glycol not only has very little corrosive effect on copper, but also has a certain degree of reducing effect, and this is thought to be the reason for its long-term storage stability.
脂肪酸エステルの効果は、ポリエチレングリコールと併
用することにより、金粉を塗膜面に平滑に配列すること
ができる。すなわちポリエチレングリコールだけで被覆
した金粉は塗膜表面に浮き上がる力は強いが、塗膜面に
均一に配列しない。The effect of fatty acid ester is that when used in combination with polyethylene glycol, gold powder can be arranged smoothly on the coating surface. That is, gold powder coated only with polyethylene glycol has a strong ability to float on the surface of the coating film, but it is not arranged uniformly on the surface of the coating film.
しかし脂肪酸エステルを添加すると浮き上がった金粉が
塗膜面にそって横に均一に配列し平滑な金属光沢を生じ
る。この理由としては脂肪酸エステルにより金粉の分散
性、配向性が良くなるためと考えられる。However, when fatty acid ester is added, the lifted gold powder is evenly arranged horizontally along the coating surface, creating a smooth metallic luster. The reason for this is thought to be that the fatty acid ester improves the dispersibility and orientation of the gold powder.
以下実施例により本発明を具体的に説明するがこれによ
り本発明の金インキ用金粉の使用範囲が限定されるもの
ではない。EXAMPLES The present invention will be specifically explained below with reference to Examples, but the scope of use of the gold powder for gold ink of the present invention is not limited thereby.
なお文中な部とあるものは全て重量部で、使用した黄銅
粉は福田金属箔粉工業住荀の商品である。All parts in the text are parts by weight, and the brass powder used is a product of Fukuda Metal Foil and Powder Industrial Co., Ltd.
実施例（１）
平均粒径１０μｍの黄銅金属粉（商品名に５０）１００
部にポリエチレングリコール＄２００を０．５部、パル
ミチン酸メチルを０．５部添加し、ミキサーにて６０ｒ
ｐ＋ｍ ・６０分間混合して金インキ用金粉を製造し
た。Example (1) Brass metal powder with an average particle size of 10 μm (50 in the trade name) 100
0.5 parts of polyethylene glycol $200 and 0.5 parts of methyl palmitate were added to the mixture, and the mixture was heated at 60 rpm in a mixer.
p+m - Mixed for 60 minutes to produce gold powder for gold ink.
実施例（２）
平均粒径１０μ禦の黄銅金属粉（商品名１１ｈ５０）１
００部にポリエチレングリコール置２００を０．５部、
パルミチン酸エチルを０．５部添加し、ミキサーにて６
゜ｒｐｍ ・６０分間混合して金インキ用金粉を製造
した。Example (2) Brass metal powder with an average particle size of 10 μm (trade name 11h50) 1
00 parts and 0.5 parts of polyethylene glycol 200,
Add 0.5 part of ethyl palmitate and mix with a mixer.
°rpm - Mixed for 60 minutes to produce gold powder for gold ink.
実施例（３）
平均粒径１０μ園の黄銅金属粉（商品名隘７０） １０
０部にポリエチレングリコール＄４０００を０．５部、
ベヘン酸メチルを０．５部添加し、ガラス球を媒体とし
たボールミルで３Ｏｒｐｍ ・ １２０分間８０℃で
混合して金インキ用金粉を製造した。Example (3) Brass metal powder with an average particle size of 10μ (trade name 隘70) 10
0 parts and 0.5 parts of polyethylene glycol $4000,
0.5 part of methyl behenate was added and mixed at 80° C. for 120 minutes at 3 rpm in a ball mill using glass beads as a medium to produce gold powder for gold ink.
実施例（４）
平均粒径１０ＩＩＩ１１の黄銅金属粉（商品名１１ｈ７
０）１００部にポリエチレングリコール１４０００を０
．５部、ベヘン酸エチルを０．５部添加し、ガラス球を
媒体としたボールミルで３Ｏｒｐｍ＋−１２０分間８０
℃で混合して金インキ用金粉を製造した。Example (4) Brass metal powder with an average particle size of 10III11 (trade name 11h7
0) 100 parts of polyethylene glycol 14,000 parts
．． 5 parts, 0.5 parts of ethyl behenate was added, and the mixture was heated at 3 Orpm + - 120 minutes in a ball mill using a glass ball as a medium.
Gold powder for gold ink was produced by mixing at ℃.
実施例（５）
平均粒径３μｍの黄銅金属粉（商品名ｍ５５５０）１（
１０部にポリエチレングリコール１３００を６部、ステ
アリン酸メチルを６部添加し、ミキサーにて６゜ｒｐｍ
・ １２０分間混合して金インキ用金粉を製造した
。Example (5) Brass metal powder (trade name m5550) 1 (trade name m5550) with an average particle size of 3 μm
Add 6 parts of polyethylene glycol 1300 and 6 parts of methyl stearate to 10 parts, and mix at 6° rpm with a mixer.
- Gold powder for gold ink was produced by mixing for 120 minutes.
実施例（６）
平均粒径３μｍの黄銅金属粉（商品名１’に５５５０）
１００部にポリエチレングリコール＃３００を６部、ス
テアリン酸エチルを６部添加し、ミキサーにて６゜ｒｐ
ｍ ・ １２０分間混合して金インキ用金粉を製造し
た。Example (6) Brass metal powder with an average particle size of 3 μm (product name 1' is 5550)
Add 6 parts of polyethylene glycol #300 and 6 parts of ethyl stearate to 100 parts, and mix at 6°rp with a mixer.
m・Gold powder for gold ink was manufactured by mixing for 120 minutes.
実施例（７）
平均粒径３μｍの黄銅金属粉（商品名Ｎａ？？７０）１
００部にポリエチレングリコール１１１０００を１０部
、ベヘン酸メチルを１０部添加し、ガラス球を媒体とし
たボールミルで３Ｏｒｐｍ ・ １２０分間８０℃で
混合して金インキ用金粉を製造した。Example (7) Brass metal powder with an average particle size of 3 μm (trade name Na??70) 1
To 00 parts, 10 parts of polyethylene glycol 111000 and 10 parts of methyl behenate were added and mixed at 80° C. for 120 minutes at 3 Orpm in a ball mill using glass balls as a medium to produce gold powder for gold ink.
実施例（８）
平均粒径３μｍの黄銅金属粉（商品名１１７７７０）１
００部にポリエチレングリコールｌ６００を１０部、ス
テアリン酸メチルを５部添加し、ガラス球を媒体とした
ボールミルで３Ｏｒｐｍ ・６０分間混合して金イン
キ用金粉を製造した。Example (8) Brass metal powder with an average particle size of 3 μm (trade name 117770) 1
To 00 parts, 10 parts of polyethylene glycol 1600 and 5 parts of methyl stearate were added, and the mixture was mixed for 60 minutes at 3 rpm in a ball mill using glass balls as a medium to produce gold powder for gold ink.
実施例（９）
平均粒径５μｍの黄銅金属粉（商品名１１ｈ５０００）
１００部にポリエチレングリコール嘗３００を２部、ス
テアリン酸エチルを２部添加し、ミキサーにて６０ｒｐ
ｍ ・６０分間混合して金インキ用金粉を製造した。Example (9) Brass metal powder with an average particle size of 5 μm (trade name 11h5000)
Add 2 parts of polyethylene glycol 300 and 2 parts of ethyl stearate to 100 parts, and mix with a mixer at 60 rpm.
m・Gold powder for gold ink was produced by mixing for 60 minutes.
実施例０１
平均粒径５μＩの黄銅金属粉（商品名＆７０００）１０
０部にポリエチレングリコール＃３００を２部、ステア
リン酸メチルを６部添加し、ミキサーにて６゜ｒｐｍ
・６０分間混合して金インキ用金粉を製造した。Example 01 Brass metal powder (trade name &7000) with an average particle size of 5 μI 10
Add 2 parts of polyethylene glycol #300 and 6 parts of methyl stearate to 0 parts, and mix at 6° rpm with a mixer.
- Gold powder for gold ink was produced by mixing for 60 minutes.
以上、実施例（１）〜Ｑｌｌｌで得られた金インキ用金
粉の性能を評価するため、アルキルフェノール変性キシ
レン樹脂を５号ソルベントで溶解したビヒクル５０部に
実施例（１）〜０Ｉで得た金インキ用金粉を各々５０部
混合し、金インキを作成した。As described above, in order to evaluate the performance of the gold powder for gold ink obtained in Example (1) to Qlll, the gold powder obtained in Example (1) to Gold ink was prepared by mixing 50 parts of each gold powder for ink.
その結果、本発明の金インキ用金粉を用いた金インキで
紙に印刷した（印刷条件はＲ１テスターによる）塗膜は
オフセット印刷に準じる印刷方法でありながら、グラビ
ア印刷と同じような優れた金属光沢を呈した。As a result, the coating film printed on paper with gold ink using the gold powder for gold ink of the present invention (printing conditions were based on the R1 tester) was found to be a printing method similar to offset printing, but with excellent metallic properties similar to gravure printing. It was shiny.
また金インキにしたものを、２５℃９０日間放置した後
に印刷しても、優れた金属光沢を有する塗膜を得ること
ができた。比較のため、本発明の処理を行っていない通
常の金粉を用いて上記方法で金インキを作成したものは
２５℃１０日間で金属光沢がなくなり、３０日後には変
色が認められた。Furthermore, even when printed with gold ink after being left at 25° C. for 90 days, a coating film with excellent metallic luster could be obtained. For comparison, a gold ink prepared by the above method using ordinary gold powder that was not treated according to the present invention lost its metallic luster in 10 days at 25°C, and discoloration was observed after 30 days.
最近、オフセット印刷にて金色印刷をする例が多くなっ
てきたがグラビア印刷の金色印刷と比較すると金属光沢
が悪いのは大きな欠点であった。Recently, there have been many examples of gold printing using offset printing, but compared to gold printing using gravure printing, a major drawback is that the metallic luster is poor.
いままで対策がなく、業界ではオフセット印刷でグラビ
ア印刷の金属光沢を出すのは無理であると常識的に言わ
れて来た。Until now, no countermeasures have been taken, and common sense in the industry has been that it is impossible to achieve the metallic luster of gravure printing using offset printing.
しかし本発明の金インキ用金粉を使用すればオフセフ）
印刷でグラビア印刷に近い金属光沢を出すことが可能と
なり、また貯蔵安定性も非常に良くなったため、他のイ
ンキと同じ取り扱いができ、金インキとして長期間在庫
することができ、いつでも優れた金属光沢を有する印刷
物を印刷することができるようになる。However, if you use the gold powder for gold ink of the present invention, it will be off-safe)
It is now possible to print with a metallic luster close to that of gravure printing, and the storage stability is also very good, so it can be handled in the same way as other inks and can be kept in stock for a long period of time as gold ink, making it an excellent metal at any time. It becomes possible to print printed matter with gloss.
さらに従来の金粉よりリーフィング性能が良くなってい
るため、高速印刷でも優れた金属光沢を有する印刷物が
できるようになった。Furthermore, because the leafing performance is better than that of conventional gold powder, it is now possible to produce printed matter with excellent metallic luster even during high-speed printing.
以上詳細に説明した通り、本発明の金インキ用金粉は、
金インキ用として使用した場合価れた性能を示す画期的
な金粉である。As explained in detail above, the gold powder for gold ink of the present invention is
This is an innovative gold powder that exhibits excellent performance when used for gold ink.
Claims (2)
銅金属粉１００重量部に対し、０．５〜１０重量部のポ
リエチレングリコール、及び０．５〜１０重量部の脂肪
酸エステルが被覆された金インキ用金粉。(1) 100 parts by weight of flaky brass metal powder with an average particle diameter of 10 μm or less treated with fatty acid was coated with 0.5 to 10 parts by weight of polyethylene glycol and 0.5 to 10 parts by weight of fatty acid ester. Gold powder for gold ink.
テルであることを特徴とする特許請求の範囲第１項記載
の金インキ用金粉。(2) The gold powder for gold ink according to claim 1, wherein the fatty acid ester is a fatty acid methyl or ethyl ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61202869A JPH0730276B2 (en) | 1986-08-28 | 1986-08-28 | Gold powder for gold ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61202869A JPH0730276B2 (en) | 1986-08-28 | 1986-08-28 | Gold powder for gold ink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6357672A true JPS6357672A (en) | 1988-03-12 |
| JPH0730276B2 JPH0730276B2 (en) | 1995-04-05 |
Family
ID=16464541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61202869A Expired - Fee Related JPH0730276B2 (en) | 1986-08-28 | 1986-08-28 | Gold powder for gold ink |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0730276B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100740562B1 (en) | 2005-12-28 | 2007-07-18 | 서명규 | Method for Preparing Hydrophilic Gold Particle |
-
1986
- 1986-08-28 JP JP61202869A patent/JPH0730276B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100740562B1 (en) | 2005-12-28 | 2007-07-18 | 서명규 | Method for Preparing Hydrophilic Gold Particle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0730276B2 (en) | 1995-04-05 |
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