JP3878015B2 - Ink stick for printer and manufacturing method thereof - Google Patents
Ink stick for printer and manufacturing method thereof Download PDFInfo
- Publication number
- JP3878015B2 JP3878015B2 JP2001400476A JP2001400476A JP3878015B2 JP 3878015 B2 JP3878015 B2 JP 3878015B2 JP 2001400476 A JP2001400476 A JP 2001400476A JP 2001400476 A JP2001400476 A JP 2001400476A JP 3878015 B2 JP3878015 B2 JP 3878015B2
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- Prior art keywords
- ink stick
- printer
- melt
- colorant
- granular
- 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.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000000203 mixture Substances 0.000 claims description 28
- 239000000155 melt Substances 0.000 claims description 12
- 239000003086 colorant Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 7
- 238000000748 compression moulding Methods 0.000 claims description 4
- 239000000110 cooling liquid Substances 0.000 claims description 3
- 230000009477 glass transition Effects 0.000 claims 2
- 238000005507 spraying Methods 0.000 claims 2
- 238000007641 inkjet printing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 150000002148 esters Chemical class 0.000 description 3
- 239000002440 industrial waste Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- DJWFNQUDPJTSAD-UHFFFAOYSA-N n-octadecyloctadecanamide Chemical compound CCCCCCCCCCCCCCCCCCNC(=O)CCCCCCCCCCCCCCCCC DJWFNQUDPJTSAD-UHFFFAOYSA-N 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229940124530 sulfonamide Drugs 0.000 description 1
- 150000003456 sulfonamides Chemical class 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Ink Jet (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
【０００１】
【発明の属する技術分野】
本発明は、プリンタ用インクスティック及びその製造方法に関する。
【０００２】
【従来の技術】
インク・ジェット印刷装置の印刷インクとして、常温では固相で動作温度では液相となるプリンタ用インクスティックが用いられている。
【０００３】
一般に、カラー印刷用のプリンタ用インクスティックは、シアン、マゼンタ、黄色又は黒のいずれかの着色剤と、この着色剤に対して相溶性を有するベース組成物とから構成されている。
【０００４】
所定の棒状又はブロック状に成形されたプリンタ用インクスティックは、インク・ジェット印刷装置に供給されて、インク・ジェット印刷装置内での加熱により液相となり、印刷媒体に向けてインク滴として噴射され、印刷媒体上で凝固して所望パターンを形成する。
【０００５】
【発明が解決しようとする課題】
従来から、このようなプリンタ用インクスティックは、インクスティックを構成する各成分を容器中で加熱し液状の状態として均一に混合し、所定の形状の成形領域をもつ型又は容器に注入して放冷固化させて製造されている。
【０００６】
しかしながら、このような従来のプリンタ用インクスティックの製造方法は、熱作業であって、作業前の段取りや作業後の清掃等に時間がかかる上に、作業中も融液の温度コントロールが必要なため作業性が悪いという問題があった。
【０００７】
また、インクスティックの製造は、各種成分を加熱溶融させた融液を型又は容器に注下して行うため、成分蒸気が発生して作業環境がよくない上に、注型後冷却する過程でインクスティックにひけが生じて寸法が変化するという問題もあった。
【０００８】
さらに、注型されたインクスティックは、放冷固化した後に型から取り出すため、注型から取り出しまでの間に時間がかかり、量産性に乏しいという問題もあった。
【０００９】
またさらに、容器に注型した場合には、インクスティックを取り出した後の容器は産業廃棄物となるという問題もあった。
【００１０】
本発明は、かかる従来の問題を解消すべくなされたもので、量産性に優れ、作業環境を悪くしたり寸法変化を起こすことがなく、しかも産業廃棄物を発生させることのないプリンタ用インクスティック及びその製造方法を提供することを目的とする。
【００１１】
【課題を解決するための手段】
本発明のプリンタ用インクスティックは、粉末状又は粒状のインクスティック組成物を、所定の形状に加圧成形してなることを特徴としている。
【００１２】
本発明に用いられるインクスティック組成物としては、着色剤とこの着色剤と相溶性を有するベース組成物からなる公知の組成物を用いることができる。
【００１３】
すなわち、ベース組成物を構成する成分としては、パラフィンワックス、マイクロクリスタリン・ワックス、ポリエチレン・ワックス、エステル・ワックス、脂肪酸及びその他のワックス物質、脂肪酸アミド含有物質、スルホンアミド物質、ロジン・エステルのような天然の樹脂物質、各種の合成樹脂、オリゴマー（低重合体）、ポリマー（高重合体）及びコポリマー（共重合体）等が用いられ、着色剤としては一般にベース組成物と相溶性のよいシアン、マゼンタ、黄色又は黒の着色剤が用いられる。
【００１４】
ベース組成物は、融点が８０〜１００℃程度で、印刷媒体上に微小液滴の状態で付着した後には、耐摩性、密着性等のインクとしての必要な特性を発揮するように、各種成分の組成が調整される。使用する成分の種類、配合量等は、目的に応じて実験的に定められる。
【００１５】
これらのインクスティック形成成分は、１００〜１５０℃程度の温度で加熱溶融され、均一に混合される。なお、融点が１５０℃以上の合成樹脂であっても、１００〜１５０℃で溶融した融液に溶解するものは、インクスティック形成成分として使用することができる。
【００１６】
融液を均一に混合し、場合によっては各成分が所定の反応をした後、この融液から粉末状又は粒状のインクスティック組成物を形成する。
【００１７】
粉末状又は粒状のインクスティック組成物は、融液状態のインクスティック組成物から、例えば次のような方法により製造することができる。
【００１８】
すなわち、インクスティック組成物の融液を所定の型に注下し冷却固化した後、この組成物のブロックをそのガラス点以下、好ましくは０℃以下の温度に冷却して粉砕し分級して所定の粒径の粉末状又は粒状とする。
【００１９】
または、インクスティック組成物の融液を高温で低粘度にし、冷却液中に向けて高圧空気とともにノズルから噴霧して冷却し粉末状又は粒状とする。
【００２０】
なお、粉末状又は粒状のインクスティック組成物は、球状である必要はなく、ペレット状、フレーク状、短繊維状等、金型に充填可能であればどのような形状であってもよい。
【００２１】
粉末状又は粒状のインクスティック組成物は、計量されて常温の金型に充填され加圧により所定の形状に成形される。
【００２２】
加圧成形は、圧縮成形、押出し成形、トランスファー成形等の金型を用いて加圧下に成形する方法であればいずれの方法でもよいが、インクスティック組成物は溶融粘度が低いので、常温での圧縮成形が最も適している。
【００２３】
プリンタ用インクスティックの形状は、インクジェット印刷装置の形式により異なるが、通常、円柱状、円錐台状、直方体状、角部に丸みを持たせた直方体状等任意の形状とすることができる。
【００２４】
【実施の形態】
次に本発明の実施例について説明する。
【００２５】
【実施例】
ウレタン樹脂組成物 ６２ｇ、ロジン・エステル粘着付与剤樹脂 ６２ｇ、ステアリル・ステアラミド １２０ｇ、抗酸化剤 ０．４ｇを１４０゜Ｃで溶融し、１１５゜Ｃで溶融させ３０分間撹拌して均一に混合した。
【００２６】
この混合物に、ソルベント・ブルー４４ ５ｇを添加してさらに３０分間加熱した後、冷却固化させた。
【００２７】
次に、この固化体を冷凍室内で−５℃まで冷却した後、同じ冷凍室内で粉砕し、分級して粉末状とした。
【００２８】
この粉末状の組成物の１０ｇを圧縮成形機の円柱形の成形室を持つ金型に充填し、常温で１５０ｋｇ／ｃｍ2 の圧力で圧縮成形して円柱状のプリンタ用インクスティックを得た。このプリンタ用インクスティックの融点は約９０゜Ｃであった。
【００２９】
【発明の効果】
以上の実施例からも明らかなように、本発明によれば、インクスティック組成物を融液としないで所定の形状に成形するので作業中の温度コントロールが不要で、作業前の段取り、作業後の清掃等の時間を大幅に短縮することができ、さらに、成型後ただちに型から取り出すことができるので、量産性に優れており製造コストを大幅に下げることが可能である。また、融液からの成分蒸気の発生がないので作業環境に影響を与えることがなく、注型用の容器も使用しないので産業廃棄物の発生もない。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ink stick for a printer and a method for manufacturing the same.
[0002]
[Prior art]
2. Description of the Related Art Printer ink sticks that are in a solid phase at room temperature and in a liquid phase at an operating temperature are used as printing ink for ink-jet printing apparatuses.
[0003]
In general, a printer ink stick for color printing is composed of a colorant of cyan, magenta, yellow or black and a base composition compatible with the colorant.
[0004]
The ink stick for a printer formed into a predetermined rod shape or block shape is supplied to the ink jet printing apparatus, becomes a liquid phase by heating in the ink jet printing apparatus, and is ejected as ink droplets toward the printing medium. And solidify on the print medium to form the desired pattern.
[0005]
[Problems to be solved by the invention]
Conventionally, such an ink stick for a printer is heated in a container to uniformly mix the components constituting the ink stick in a liquid state, and is injected into a mold or container having a molding area of a predetermined shape and released. It is manufactured by cooling.
[0006]
However, such a conventional method for manufacturing an ink stick for a printer is a thermal work, and it takes time for setup before the work, cleaning after the work, and the like, and it is necessary to control the temperature of the melt even during the work. Therefore, there was a problem that workability was poor.
[0007]
Ink sticks are manufactured by pouring a melt in which various components are heated and melted into a mold or container, so that component vapor is generated and the working environment is not good. There was also a problem that the ink sticks were sinked and the dimensions changed.
[0008]
Further, since the cast ink stick is taken out from the mold after being allowed to cool and solidify, there is a problem that it takes time from casting to taking out and the mass productivity is poor.
[0009]
Furthermore, when the container is cast into a container, there is a problem that the container after taking out the ink stick becomes industrial waste.
[0010]
The present invention has been made to solve the above-described conventional problems, and is an ink stick for a printer that is excellent in mass productivity, does not deteriorate the working environment or cause dimensional changes, and does not generate industrial waste. And it aims at providing the manufacturing method.
[0011]
[Means for Solving the Problems]
The ink stick for a printer of the present invention is characterized in that a powdered or granular ink stick composition is pressure-molded into a predetermined shape.
[0012]
As the ink stick composition used in the present invention, a known composition comprising a colorant and a base composition compatible with the colorant can be used.
[0013]
That is, as components constituting the base composition, paraffin wax, microcrystalline wax, polyethylene wax, ester wax, fatty acid and other wax substances, fatty acid amide-containing substances, sulfonamide substances, rosin esters, etc. Natural resin materials, various synthetic resins, oligomers (low polymers), polymers (high polymers), copolymers (copolymers), etc. are used, and as a colorant, cyan, which is generally compatible with the base composition, Magenta, yellow or black colorants are used.
[0014]
The base composition has a melting point of about 80 to 100 ° C., and after adhering to the print medium in the form of fine droplets, various components are used so as to exhibit necessary properties as ink such as abrasion resistance and adhesion. The composition of is adjusted. The kind of component to be used, the blending amount, and the like are experimentally determined according to the purpose.
[0015]
These ink stick forming components are heated and melted at a temperature of about 100 to 150 ° C. and mixed uniformly. In addition, even if it is a synthetic resin whose melting | fusing point is 150 degreeC or more, what melt | dissolves in the melt melted at 100-150 degreeC can be used as an ink stick formation component.
[0016]
After the melt is uniformly mixed and, in some cases, each component has a predetermined reaction, a powder or granular ink stick composition is formed from the melt.
[0017]
The powdered or granular ink stick composition can be produced from the melted ink stick composition by, for example, the following method.
[0018]
That is, after the melt of the ink stick composition is poured into a predetermined mold and cooled and solidified, the block of this composition is cooled to a temperature below its glass point, preferably 0 ° C. or less, pulverized, classified, and determined. It is made into the powder form of the particle size of this or granular.
[0019]
Alternatively, the melt of the ink stick composition is made to have a low viscosity at a high temperature and sprayed from a nozzle together with high-pressure air toward the cooling liquid to be cooled or powdered or granular.
[0020]
The powdered or granular ink stick composition need not be spherical, and may have any shape, such as pellets, flakes, and short fibers, as long as it can be filled into a mold.
[0021]
The powdered or granular ink stick composition is weighed and filled in a normal temperature mold and molded into a predetermined shape by pressurization.
[0022]
The pressure molding may be any method as long as it is a method of molding under pressure using a mold such as compression molding, extrusion molding, transfer molding, etc., but since the ink stick composition has a low melt viscosity, Compression molding is most suitable.
[0023]
The shape of the ink stick for a printer varies depending on the type of the ink jet printing apparatus, but it can usually be any shape such as a columnar shape, a truncated cone shape, a rectangular parallelepiped shape, or a rectangular parallelepiped shape with rounded corners.
[0024]
[Embodiment]
Next, examples of the present invention will be described.
[0025]
【Example】
62 g of urethane resin composition, 62 g of rosin / ester tackifier resin, 120 g of stearyl stearamide, and 0.4 g of antioxidant were melted at 140 ° C., melted at 115 ° C., stirred for 30 minutes and mixed uniformly.
[0026]
To this mixture, 45 g of Solvent Blue 44 was added and heated for another 30 minutes, and then cooled and solidified.
[0027]
Next, this solidified body was cooled to −5 ° C. in a freezing chamber, pulverized in the same freezing chamber, classified, and powdered.
[0028]
10 g of this powdery composition was filled into a mold having a cylindrical molding chamber of a compression molding machine, and compression molded at room temperature at a pressure of 150 kg / cm 2 to obtain a cylindrical printer ink stick. The melting point of this printer ink stick was about 90 ° C.
[0029]
【The invention's effect】
As is clear from the above examples, according to the present invention, since the ink stick composition is molded into a predetermined shape without being melted, temperature control during the operation is unnecessary, setup before the operation, and after the operation. It is possible to greatly reduce the time for cleaning and the like, and further, it can be taken out of the mold immediately after molding, so that it is excellent in mass productivity and can greatly reduce the manufacturing cost. Further, since there is no generation of component vapor from the melt, there is no influence on the work environment, and no casting waste is used, so there is no generation of industrial waste.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001400476A JP3878015B2 (en) | 2001-12-28 | 2001-12-28 | Ink stick for printer and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001400476A JP3878015B2 (en) | 2001-12-28 | 2001-12-28 | Ink stick for printer and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003201426A JP2003201426A (en) | 2003-07-18 |
| JP3878015B2 true JP3878015B2 (en) | 2007-02-07 |
Family
ID=27639886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001400476A Expired - Fee Related JP3878015B2 (en) | 2001-12-28 | 2001-12-28 | Ink stick for printer and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3878015B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7874826B2 (en) * | 2006-10-11 | 2011-01-25 | Xerox Corporation | Solid ink stick fabrication by extrusion, roll forming and swaging |
| US7968035B2 (en) * | 2006-10-11 | 2011-06-28 | Xerox Corporation | Forged ink stick fabrication from in-line extrusion |
-
2001
- 2001-12-28 JP JP2001400476A patent/JP3878015B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003201426A (en) | 2003-07-18 |
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