JPH04331264A - Gold powder for gold ink - Google Patents
Gold powder for gold inkInfo
- Publication number
- JPH04331264A JPH04331264A JP3014689A JP1468991A JPH04331264A JP H04331264 A JPH04331264 A JP H04331264A JP 3014689 A JP3014689 A JP 3014689A JP 1468991 A JP1468991 A JP 1468991A JP H04331264 A JPH04331264 A JP H04331264A
- Authority
- JP
- Japan
- Prior art keywords
- gold
- powder
- fatty acid
- parts
- coupling agent
- 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 98
- 239000010931 gold Substances 0.000 title claims description 47
- 229910052737 gold Inorganic materials 0.000 title claims description 47
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 28
- 239000000194 fatty acid Substances 0.000 claims abstract description 28
- 229930195729 fatty acid Natural products 0.000 claims abstract description 28
- 239000007822 coupling agent Substances 0.000 claims abstract description 23
- -1 fatty acid ester Chemical class 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 10
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 9
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 125000004494 ethyl ester group Chemical group 0.000 claims description 3
- 239000010951 brass Substances 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 39
- 239000002932 luster Substances 0.000 description 27
- 238000007639 printing Methods 0.000 description 9
- HPEUJPJOZXNMSJ-UHFFFAOYSA-N Methyl stearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC HPEUJPJOZXNMSJ-UHFFFAOYSA-N 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- FLIACVVOZYBSBS-UHFFFAOYSA-N Methyl palmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC FLIACVVOZYBSBS-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000002845 discoloration Methods 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
- XIRNKXNNONJFQO-UHFFFAOYSA-N ethyl hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)OCC XIRNKXNNONJFQO-UHFFFAOYSA-N 0.000 description 4
- MMXKVMNBHPAILY-UHFFFAOYSA-N ethyl laurate Chemical compound CCCCCCCCCCCC(=O)OCC MMXKVMNBHPAILY-UHFFFAOYSA-N 0.000 description 4
- MMKRHZKQPFCLLS-UHFFFAOYSA-N ethyl myristate Chemical compound CCCCCCCCCCCCCC(=O)OCC MMKRHZKQPFCLLS-UHFFFAOYSA-N 0.000 description 4
- MVLVMROFTAUDAG-UHFFFAOYSA-N ethyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC MVLVMROFTAUDAG-UHFFFAOYSA-N 0.000 description 4
- QSQLTHHMFHEFIY-UHFFFAOYSA-N methyl behenate Chemical compound CCCCCCCCCCCCCCCCCCCCCC(=O)OC QSQLTHHMFHEFIY-UHFFFAOYSA-N 0.000 description 4
- UQDUPQYQJKYHQI-UHFFFAOYSA-N methyl laurate Chemical compound CCCCCCCCCCCC(=O)OC UQDUPQYQJKYHQI-UHFFFAOYSA-N 0.000 description 4
- ZAZKJZBWRNNLDS-UHFFFAOYSA-N methyl tetradecanoate Chemical compound CCCCCCCCCCCCCC(=O)OC ZAZKJZBWRNNLDS-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000007645 offset printing Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- IEKHISJGRIEHRE-UHFFFAOYSA-N 16-methylheptadecanoic acid;propan-2-ol;titanium Chemical compound [Ti].CC(C)O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O.CC(C)CCCCCCCCCCCCCCC(O)=O IEKHISJGRIEHRE-UHFFFAOYSA-N 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229940067592 ethyl palmitate Drugs 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture 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
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000002411 adverse Effects 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 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
- 230000003449 preventive effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
Description
【０００１】0001
【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。[Industrial Application Field] The present invention provides gold powder for gold ink that has excellent metallic luster as printed matter, does not discolor even when mixed with a vehicle and left for a long period of time, and maintains excellent metallic luster. It is related to.
【０００２】0002
【従来の技術】金粉（片状黄銅金属粉）を用いた金色印
刷には、あらかじめ金下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。[Prior art] Gold printing using gold powder (flake brass metal powder) is done by printing with gold underink in advance and then sprinkling gold powder on top of it, or by mixing gold powder and a vehicle and making gold ink just before printing. There is a way to print.
【０００３】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５５−２
７１１９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 a 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. As a method to improve these drawbacks, gold ink compositions using vehicles that are less reactive with gold powder or adding an amine compound as a rust preventive agent (JP-A-51-115105, JP-B-Sho 55-2) have been proposed.
7119) has been proposed.
【０００４】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 poor. It is enough.
【０００５】金インキに使用する金粉は平均粒径１０μ
ｍ 以下の微細な金属粉である。高速オフセット印刷用
には印刷適性を良くするため ５μｍ 以下の非常に細
かい金属粉が用いられている。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ヵ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
ヵ月以上は初期の金属光沢を維持することが必要である
。[0005] Gold powder used for gold ink has an average particle size of 10 μm.
It is a fine metal powder of less than m. For high-speed offset printing, very fine metal powder of 5 μm or less is used to improve printability. 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 is a problem when using gold ink industrially, and at least 3
It is necessary to maintain the initial metallic luster for more than a month.
【０００６】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）で表面処理されて
いる。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従来ま
での表面処理だけでは不十分になってきた。すなわちビ
ヒクル中に微量の活性酸基や水分が存在すると従来の脂
肪酸だけによる不均一な被覆で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。Conventionally, gold powder has been surface-treated with fatty acids (higher fatty acids such as stearic acid) during its manufacturing process. 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, conventional surface treatments alone are no longer sufficient for gold powder for gold ink. That is, if trace amounts of active acid groups or water are present in the vehicle, the conventional non-uniform coating using only fatty acids will easily be replaced, resulting in the disadvantage that the vehicle and gold powder will become compatible, making it impossible to obtain the leafing phenomenon.
【０００７】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直接処
理する方法は、粗い金粉に対しては有効であるが、１０
μｍ 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 directly treating gold powder with an organic rust inhibitor such as benzotriazole, tolyltriazole, or an amine compound is effective for coarse gold powder;
For fine gold powder of .mu.m or less, the anti-corrosive protective film changes the color tone of the gold powder or inhibits the leafing phenomenon, making it impossible to use it as gold powder for gold ink.
【０００８】[0008]
【発明が解決しようとする問題点】本発明者は、金粉表
面に均一に脂肪酸エステルの被覆を形成すると優れた色
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
属光沢を維持することを見出し、本発明を完成したもの
である。[Problems to be Solved by the Invention] The present inventor has discovered that when a fatty acid ester is uniformly coated on the surface of gold powder, it retains excellent color tone and gloss, and when mixed in a vehicle, it has better leafing properties than conventional gold powder. The present invention was completed based on the discovery that the leafing phenomenon is not worsened even when it comes into contact with a vehicle, and the metallic luster is maintained for a long period of time.
【０００９】[0009]
【問題を解決するための手段】即ち本発明は、脂肪酸で
処理した平均粒径１０μｍ以下の片状黄銅金属粉１００
重量部に対し、２〜１０重量部の脂肪酸エステルと０．
２ 〜５重量部のカップリング剤が混合、被覆された金
インキ用金粉である。[Means for solving the problem] That is, the present invention provides 100 pieces of flaky brass metal powder with an average particle size of 10 μm or less treated with a fatty acid.
2 to 10 parts by weight of fatty acid ester and 0.00 parts by weight.
Gold powder for gold ink mixed and coated with 2 to 5 parts by weight of a coupling agent.
【００１０】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。粒子の大きさを１０
μｍ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。[0010] The fatty acid-treated flaky brass metal powder of the present invention is what is called bronze powder or gold powder produced by a mechanical pulverization method. Particle size 10
The reason why the particle size is set to be less than .mu.m is because if the particle size is coarser than this, the grain size of the plate will be blurred or the printing suitability will be significantly deteriorated, which is not preferable.
【００１１】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、具体的にはラウリン
酸メチル、ラウリン酸エチル、ミリスチン酸メチル、ミ
リスチン酸エチル、パルミチン酸メチル、パルミチン酸
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, and specifically includes methyl laurate, ethyl laurate, methyl myristate, ethyl myristate, methyl palmitate, ethyl palmitate, methyl stearate, Examples include ethyl stearate, methyl behenate, ethyl behenate, and the like.
【００１２】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リーフィング性、色調が悪くな
り好ましくない。また不飽和結合を有する脂肪酸エステ
ルは経時変化で金粉が変色する場合があり好ましくない
。Fatty acid esters other than fatty acid methyl or ethyl esters are undesirable because they worsen the leafing properties and color tone of the gold powder. In addition, fatty acid esters having unsaturated bonds are not preferred because they may cause the gold powder to discolor over time.
【００１３】脂肪酸エステルの量は金属粉１００重量部
に対し２〜１０重量部が良い。２重量部より少ないと均
一に金粉に被覆することが難しく、優れた金属光沢や、
金インキとしての貯蔵安定性が悪くなる。１０重量部以
上になると金インキとして紙への密着性や印刷適性に悪
影響を与えるため好ましくない。The amount of fatty acid ester is preferably 2 to 10 parts by weight per 100 parts by weight of metal powder. If the amount is less than 2 parts by weight, it will be difficult to uniformly coat the gold powder, resulting in excellent metallic luster,
Storage stability as a gold ink deteriorates. If it exceeds 10 parts by weight, it is not preferable because it adversely affects adhesion to paper and printability as gold ink.
【００１４】本発明のカップリング剤とは、チタネート
系カップリング剤またはアルミニウム系カップリング剤
である。これらのカップリング剤の中で好ましいものは
化学構造式にＰ，Ｓを含まないものが良く、チタネート
系カップリング剤としてはイソプロピルトリイソステア
ロイルチタネート、イソプロピルトリオクタイノルチタ
ネートなどが良い。アルミニウム系カップリング剤とし
ては加水分解性の少ないアセトアルコキシアルミニウム
ジイソプロピレートが良い。シラン系カップリング剤は
添加しても本発明に示した効果が得られず好ましくない
。The coupling agent of the present invention is a titanate coupling agent or an aluminum coupling agent. Among these coupling agents, those that do not contain P or S in their chemical structural formulas are preferred, and examples of titanate coupling agents include isopropyltriisostearoyl titanate and isopropyltrioctinonortitanate. As the aluminum-based coupling agent, acetalkoxyaluminum diisopropylate, which has low hydrolyzability, is preferred. Even if a silane coupling agent is added, the effects shown in the present invention cannot be obtained, so it is not preferable.
【００１５】カップリング剤の量は、金属粉１００重量
部に対し０．２ 〜５重量部が良い。０．２ 重量部よ
り少ないと十分なカップリング剤の効果が得られず金イ
ンキとしての貯蔵安定性が悪くなる。また、５重量部以
上であると優れた金属光沢が得られなくなる。カップリ
ング剤の添加量は脂肪酸エステル量の５０％以下が良く
、これよりカップリング剤を多くすると優れた金属光沢
が得られない場合が有り好ましくない。The amount of the coupling agent is preferably 0.2 to 5 parts by weight per 100 parts by weight of the metal powder. If the amount is less than 0.2 parts by weight, a sufficient effect of the coupling agent will not be obtained and the storage stability of the gold ink will deteriorate. Further, if the amount is 5 parts by weight or more, excellent metallic luster cannot be obtained. The amount of coupling agent added is preferably 50% or less of the amount of fatty acid ester; if the amount of coupling agent is greater than this, it may not be possible to obtain excellent metallic luster, which is not preferable.
【００１６】[0016]
【作用】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。[Function] 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 not fully elucidated as to what kind of bonding or action occurs, but the following is thought to be the reason. It will be done.
【００１７】カップリング剤を含む、脂肪酸エステルで
金粉を被覆することは、あらかじめ金粉表面の一部に形
成されていた脂肪酸あるいは金属石けんの保護膜のすき
まを均一に脂肪酸エステルが埋め、均一な保護膜ができ
るためであろう。カップリング剤の効果は、金粉表面の
金属部と脂肪酸エステルとの親和性を良くし、結合させ
る効果がある。この結果、金粉表面には均一な脂肪酸、
脂肪酸エステルの保護膜が形成され、金インキとした場
合、優れた金属光沢を発し、またビヒクルと金属銅とが
直接反応することを防止するため貯蔵安定性が良くなる
のであろう。[0017] Coating the gold powder with a fatty acid ester containing a coupling agent means that the fatty acid ester uniformly fills the gaps in the protective film of fatty acid or metal soap that has been formed on a part of the surface of the gold powder, resulting in uniform protection. This is probably due to the formation of a film. The effect of the coupling agent is to improve the affinity between the metal part on the surface of the gold powder and the fatty acid ester and to bond them. As a result, the surface of the gold powder has uniform fatty acids,
If a protective film of fatty acid ester is formed and used as gold ink, it will exhibit excellent metallic luster and will probably have better storage stability because it prevents the vehicle from directly reacting with metallic copper.
【００１８】[0018]
【実施例】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。なお文中に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株式会社の
商品である。EXAMPLES The present invention will be explained in detail with reference to Examples below, but the scope of use of the gold powder for gold ink of the present invention is not limited by these examples. All parts in the text are parts by weight, and the brass powder used is a product of Fukuda Metal Foil and Powder Industries Co., Ltd.
【００１９】実施例（１）
平均粒径３μｍの黄銅金属粉 （商品名Ｎｏ５５５０）
１００部に対し、カップリング剤としてイソプロピル
トリイソステアロイルチタネート ０．２部 、２部
、５部をステアリン酸メチル１０部に添加、混合し、ミ
キサーにて６０ｒｐｍ ， １２０分間混合して３種類
の金インキ用金粉を製造した。このようにして得た金イ
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部に本発明の金インキ用金粉を各々５０部混合し、
金インキを作成して印刷適性試験機にて塗膜を作成した
結果、３種類全て非常に優れた金属光沢を呈した。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２
５℃，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。Example (1) Brass metal powder with an average particle size of 3 μm (trade name No. 5550)
To 100 parts, 0.2 parts, 2 parts, and 5 parts of isopropyl triisostearoyl titanate as a coupling agent were added to 10 parts of methyl stearate, mixed, and mixed in a mixer at 60 rpm for 120 minutes to prepare three types of gold. Produced gold powder for ink. In order to evaluate the performance of the gold powder for gold ink thus obtained, 50 parts of each of the gold powder for gold ink of the present invention was mixed with 50 parts of a vehicle in which an alkylphenol-modified xylene resin was dissolved in No. 5 solvent.
As a result of preparing gold inks and coating films using a printing suitability tester, all three types exhibited very excellent metallic luster. 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, gold ink was made using the above method using ordinary gold powder that was not treated according to the present invention.
The metallic luster disappeared after 10 days at 5°C, and discoloration was observed after 30 days.
【００２０】実施例（２）
平均粒径３μｍの黄銅金属粉 （商品名Ｎｏ７７７０）
１００部に対し、カップリング剤としてアセトアルコ
キシアルミニウムジイソプロピレート０．２部 、２
部、５部をステアリン酸メチル１０部に添加混合し、ミ
キサーにて６０ｒｐｍ ， １２０分間混合して３種類
の金インキ用金粉を製造した。このようにして得た金イ
ンキ用金粉の性能を評価するため、実施例（１） で述
べた方法と同じ試験を行った結果、優れた金属光沢を呈
するとともに、２５℃，９０日間放置した後も初期の金
属光沢を維持していた。Example (2) Brass metal powder with an average particle size of 3 μm (trade name No. 7770)
0.2 parts of acetalkoxyaluminum diisopropylate as a coupling agent per 100 parts, 2
5 parts were added to 10 parts of methyl stearate and mixed in a mixer at 60 rpm for 120 minutes to produce three types of gold powder for gold ink. In order to evaluate the performance of the gold powder for gold ink obtained in this way, the same test as described in Example (1) was conducted. As a result, it exhibited excellent metallic luster and after being left at 25°C for 90 days. It also maintained its initial metallic luster.
【００２１】実施例（３）
平均粒径３μｍの黄銅金属粉 （商品名Ｎｏ５５５０）
１００部に対し、カップリング剤としてアセトアルコ
キシアルミニウムジイソプロピレート１部をラウリン酸
メチル、ラウリン酸エチル、ミリスチン酸メチル、ミリ
スチン酸エチル、パルミチン酸メチル、パルミチン酸エ
チル、ステアリン酸メチル、ステアリン酸エチル、ベヘ
ニン酸メチル、ベヘニン酸エチル５部に各々添加混合し
、ガラス球を媒体としたボールミルで３０ｒｐｍ ，６
０分間混合して１０種類の金インキ用金粉を製造した。
このようにして得た金インキ用金粉の性能を実施例（１
） と同じ方法で評価した結果、１０種類全て優れた金
属光沢を呈するとともに、２５℃，９０日間放置後も初
期の金属光沢を維持していた。比較のためカップリング
剤を添加しないで脂肪酸エステルだけで処理したものは
初期の金属光沢は比較的良いが、金インキ化後２５℃，
２０日間で金属光沢が悪くなり、４０日後には変色が認
められた。Example (3) Brass metal powder with an average particle size of 3 μm (trade name No. 5550)
1 part of acetalkoxyaluminum diisopropylate as a coupling agent to 100 parts of methyl laurate, ethyl laurate, methyl myristate, ethyl myristate, methyl palmitate, ethyl palmitate, methyl stearate, ethyl stearate, Add and mix 5 parts of methyl behenate and 5 parts of ethyl behenate, and mill at 30 rpm, 6 in a ball mill using a glass ball as a medium.
Ten types of gold powder for gold ink were manufactured by mixing for 0 minutes. The performance of the gold powder for gold ink thus obtained was evaluated in Example (1).
) As a result of evaluation using the same method as above, all 10 types exhibited excellent metallic luster, and the initial metallic luster was maintained even after being left at 25° C. for 90 days. For comparison, the initial metallic luster of the one treated only with fatty acid ester without adding any coupling agent was relatively good, but after forming the gold ink, the luster at 25°C,
The metallic luster deteriorated after 20 days, and discoloration was observed after 40 days.
【００２２】[0022]
【発明の効果】オフセット印刷による金色印刷が多くな
ってきたが、従来までのオフセット用金インキは初期の
金属光沢があまり良くなく、さらに金インキ化後の貯蔵
安定性が悪いため、他のインキと同じ取扱いができなか
った。しかし本発明の金インキ用金粉を使用すれば非常
に優れた金属光沢を出す金インキを製造することが可能
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、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。[Effect of the invention] Gold printing by offset printing has become more common, but conventional gold inks for offset printing did not have very good initial metallic luster, and also had poor storage stability after being made into gold ink, so other inks could not be treated in the same way. However, by using the gold powder for gold ink of the present invention, it is possible to produce gold ink that exhibits extremely high metallic luster, and also has very good storage stability, so it can be handled in the same way as other inks. It can be kept in stock for a long period of time, and printed materials with excellent metallic luster can be printed at any time.
【００２３】さらに従来の金粉よりリーフィング性能も
良いため、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。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
優れた性能を示す画期的な金粉である。Furthermore, since 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. As explained in detail above, the gold powder for gold ink of the present invention is an epoch-making gold powder that exhibits excellent performance when used for gold ink.
Claims (4)
下の片状黄銅金属粉１００重量部に対し、２〜１０重量
部の脂肪酸エステルと０．２ 〜５重量部のカップリン
グ剤が混合、被覆された金インキ用金粉。1. 2 to 10 parts by weight of fatty acid ester and 0.2 to 5 parts by weight of a coupling agent are mixed and coated with 100 parts by weight of flaky brass metal powder with an average particle size of 10 μm or less that has been treated with a fatty acid. gold powder for gold ink.
エチルエステルであることを特徴とする請求項１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.
リング剤またはアルミニウム系カップリング剤であるこ
とを特徴とする請求項１記載の金インキ用金粉。3. The gold powder for gold ink according to claim 1, wherein the coupling agent is a titanate coupling agent or an aluminum coupling agent.
の５０％以下であることを特徴とする請求項１記載の金
インキ用金粉。4. The gold powder for gold ink according to claim 1, wherein the amount of the coupling agent is 50% or less of the amount of fatty acid ester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1468991A JP2534803B2 (en) | 1991-01-14 | 1991-01-14 | Gold powder for gold ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1468991A JP2534803B2 (en) | 1991-01-14 | 1991-01-14 | Gold powder for gold ink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04331264A true JPH04331264A (en) | 1992-11-19 |
| JP2534803B2 JP2534803B2 (en) | 1996-09-18 |
Family
ID=11868168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1468991A Expired - Fee Related JP2534803B2 (en) | 1991-01-14 | 1991-01-14 | Gold powder for gold ink |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2534803B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008525559A (en) * | 2004-12-22 | 2008-07-17 | トーヤル ヨーロッパ | Metal pigment composition |
-
1991
- 1991-01-14 JP JP1468991A patent/JP2534803B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008525559A (en) * | 2004-12-22 | 2008-07-17 | トーヤル ヨーロッパ | Metal pigment composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2534803B2 (en) | 1996-09-18 |
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