WO2014156366A1 - インクジェットプリンタ用インク及び印字物 - Google Patents
インクジェットプリンタ用インク及び印字物 Download PDFInfo
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- WO2014156366A1 WO2014156366A1 PCT/JP2014/053625 JP2014053625W WO2014156366A1 WO 2014156366 A1 WO2014156366 A1 WO 2014156366A1 JP 2014053625 W JP2014053625 W JP 2014053625W WO 2014156366 A1 WO2014156366 A1 WO 2014156366A1
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- ink
- solvent
- resin
- printed matter
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/328—Inkjet printing inks characterised by colouring agents characterised by dyes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/36—Inkjet printing inks based on non-aqueous solvents
Definitions
- the present invention relates to ink and printed matter used in an ink jet printer.
- Patent Document 1 discloses an ink to which chlorinated polypropylene is added for the purpose of improving the substrate adhesion of the ink.
- An object of the present invention is to achieve both improvement in adhesion between a printed matter and a polyolefin resin substrate and reduction in apparatus load.
- the present invention includes a colorant, a plurality of types of resins, and an additive, and in a printed matter formed on a polyolefin resin substrate, at least one of the resins is a chlorine-based resin, and the concentration of the chlorine-based resin in the printed matter Is characterized in that the vicinity of the printed substrate interface, which is the interface between the substrate and the printed matter, is higher than the vicinity of the air interface, which is the interface between the air and the printed matter.
- the present invention provides an inkjet printer ink that includes a colorant, a resin, and a solvent.
- a chlorine resin is used as the resin
- the solvent is composed of a main solvent and a sub-solvent
- the vapor pressure of the main solvent at 20 ° C. is 9 0.0 kPa or more
- the vapor pressure of the secondary solvent at 20 ° C. is 0.6 to 2.0 kPa.
- printed matter a product formed by ink landing on a substrate to be printed and evaporation of a solvent contained in the ink is referred to as “printed matter”.
- the printed matter is generally a dot-like coating film or an aggregate thereof, but the shape is not limited to dots.
- a member including a substrate to be printed and printed matter attached to the surface thereof is referred to as a “printed member”.
- the chlorinated resin contained in the printed matter formed on the polyolefin resin substrate is unevenly distributed near the substrate. That is, the chlorine-based resin concentration is higher at the interface between the substrate and the printed matter (near the printed substrate interface) than at the interface between the air and the printed matter (near the air interface).
- the drying rate is suppressed by adding an organic solvent having a low evaporation rate to the ink.
- an organic solvent having a low evaporation rate is mixed while an organic solvent having a high evaporation rate is used as a base in order to maintain the quick drying property required for ink for an ink jet printer.
- the ink contains a resin, a colorant, and a solvent. These were stirred and mixed with an overhead stirrer or the like and dissolved, and then filtered through a filter having a pore size of 0.25 to 10 ⁇ m to obtain an ink for an ink jet printer.
- Resin As the resin, an acrylic resin, a styrene-acrylic resin, or a polyester resin is used in addition to a chlorine resin. These resins may be used alone or in combination of two or more. These resins must be soluble in 2-butanone or acetone used as a solvent.
- the chlorinated resin here includes chlorinated polypropylene, chlorinated polyethylene, polyvinyl chloride, and polyvinyl chloride acetate.
- the acrylic resin includes a homopolymer resin synthesized from acrylic acid, acrylic acid ester, methacrylic acid or methacrylic acid ester, and a copolymer resin thereof.
- Styrene-acrylic resins include styrene-acrylic copolymer resins and styrene-methacrylic copolymer resins.
- Polyester resins include polyethylene terephthalate, polyethylene isophthalate, polypropylene terephthalate, polypropylene isophthalate, polybutylene terephthalate and polybutylene isophthalate.
- the chlorinated resin is preferably chlorinated polypropylene. This is because the affinity with the polyolefin substrate is high and the solubility in a solvent is high as compared with other chlorine-containing resins.
- the proportion of the chlorinated polypropylene resin in the resin is preferably 6 to 21% by mass. If it is less than 6% by mass, sufficient adhesion to the substrate cannot be obtained, and if it is 21% by mass or more, the risk of corrosion of the metal member increases.
- the colorant is not particularly limited as long as it is a material that dissolves in a solvent.
- Examples of colorants are VALIFAST (R) Yellow 3150, VALIFAST (R) Yellow 3170, VALIFAST (R) Yellow 4120, VALIFAST (R) Yellow 4121, VALIFAST (R) Orange 2210, VALIFAST (R) Orange 3209, VALIFAST (R) Red 1306, VALIFAST (R) Red 2320, VALIFAST (R) Red 3311, VALIFAST (R) Red 3312, VALIFAST (R) Pink 2310N, VALIFAST (R) Brown 3402, VALIFAST (R) Blue 1605, VALIFAST (R) Blue 1621, VALIFAST (R) Blue 2620, VALIFAST (R) Blue 2627, VALIFAST (R) Blue 2670, VALIFAST (R) Black 1807, VALIFAST (R) Black 3804, VALIFAST (R) Black 3810 , VALIF
- the solvent of the ink is composed of a main solvent and an auxiliary solvent.
- the main solvent an organic solvent having a vapor pressure at 20 ° C. of 9.0 kPa or more is used. From the viewpoint of resin solubility, it is preferable to use acetone or 2-butanone. These may be mixed.
- the secondary solvent an organic solvent having a vapor pressure at 20 ° C. of 0.6 to 2.0 kPa is used. From the viewpoint of the solubility of the resin, it is preferable to use an alcohol or a fatty acid ester alone or in combination of two or more.
- Alcohol that satisfies the requirements includes 1-butanol, 2-butanol and 1-propanol.
- the fatty acid ester butyl acetate, isobutyl acetate, methyl propionate, ethyl propionate, methyl butyrate and ethyl butyrate are preferable.
- the vapor pressure of the secondary solvent is less than 0.6 kPa, the ink quick drying property is lost, and if it is higher than 2.0 kPa, sufficient substrate uneven distribution of the chlorinated polypropylene resin cannot be obtained.
- the ratio of the sub-solvent in the solvent is preferably 5 to 20% by mass.
- Additive Additives may be added to adjust various physical properties of the ink and printed matter. For example, when used in a charge control type ink jet printer or the like, a conductive agent may be added to adjust the conductivity of the ink liquid. Further, a silicone-based additive may be added to smooth the shape of the printed matter and improve the visibility.
- Inkjet printer The ink described above can be used in a known inkjet printer.
- a charge control system for example, a charge control system, a drop-on-demand system, or the like can be cited.
- a charge control method that can increase the flying distance of ink droplets is suitable.
- the substrate material is a polyolefin resin such as polypropylene or polyethylene. Since the polyolefin resin has a chemical structure similar to that of the resin contained in the ink, the attracting intermolecular force increases. Therefore, the affinity between the resin contained in the ink and the substrate is increased, and the resin in the printed matter can be unevenly distributed on the substrate side.
- the shape of the substrate on which the ink is printed may be smooth or uneven.
- the prepared ink was discharged by a charge control type ink jet printer to form a dot-like coating film on a polypropylene substrate.
- Polypropylene substrates were also used in the following examples and comparative examples. Although not illustrated, other polyolefin resins such as polyethylene have the same tendency as polypropylene.
- the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the coating film was processed into a cross-section, and elemental analysis of the vicinity of the air interface of the coating film and the vicinity of the interface of the polypropylene substrate of the coating film was performed by energy dispersive X-ray analysis.
- the vicinity of the air interface is a region from the surface of the coating film to a depth of 200 nm
- the vicinity of the substrate interface is a region from the contact surface (interface) between the substrate and the coating film to a depth of 200 nm. did.
- FIG. 1 shows a cross-sectional SEM image of a substrate and printed matter and a chlorine concentration distribution in the film thickness direction of the printed matter.
- the right side is a cross-sectional SEM image
- the left side is a graph of chlorine concentration distribution.
- the cross-sectional SEM image shows the polypropylene substrate 101 and the printed material 100 formed thereon.
- the vertical axis represents the distance in the film thickness direction based on the surface of the right polypropylene substrate 101
- the horizontal axis represents the chlorine concentration.
- the chlorine concentration corresponds to the distribution of chlorinated polypropylene.
- the graph shows that the chlorinated polypropylene concentration in the vicinity of the substrate interface is about 1.5 times higher than that in the vicinity of the air interface.
- Example 2 An ink was prepared in the same manner as in Example 1 except that the secondary solvent was butyl acetate. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, the ink of this example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was 1.5 times higher than that in the vicinity of the air interface.
- Example 2 An ink was prepared in the same manner as in Example 1 except that 1-butanol was used as the co-solvent and solvent black 29 was used as the dye. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, the ink of this example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was 1.5 times higher than that in the vicinity of the air interface.
- Example 2 An ink was prepared in the same manner as in Example 1 except that the dye was solvent black 29, the main solvent 2-butanone was 64 g, and the sub-solvent 2-butanol was 16 g. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, the ink of this example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was 1.5 times higher than that in the vicinity of the air interface.
- Example 2 An ink was prepared in the same manner as in Example 1 except that the dye was solvent black 29 and the resin was an acrylic ester resin having a molecular weight of about 50,000. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, the ink of this example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was 1.5 times higher than that in the vicinity of the air interface.
- Example 2 An ink was prepared in the same manner as in Example 1 except that the resin was a polyethylene terephthalate resin having a molecular weight of about 10,000. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, the ink of this example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was 1.5 times higher than that in the vicinity of the air interface.
- Example 2 An ink was prepared in the same manner as in Example 1 except that the amount of chlorinated polypropylene added was 4 g. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, the ink of this example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was 1.5 times higher than that in the vicinity of the air interface.
- Example 1 An ink was prepared in the same manner as in Example 1, except that methyl isobutyl ketone was used as the auxiliary solvent. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, an ink of this comparative example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was less than 1.5 times that in the vicinity of the air interface.
- Example 2 An ink was prepared in the same manner as in Example 1 except that the secondary solvent was ethyl cellosolve and the dye was solvent black 29. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, an ink of this comparative example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was 1.5 times higher than that in the vicinity of the air interface.
- Example 3 An ink was prepared in the same manner as in Example 1, except that the dye was solvent black 29, the secondary solvent 2-butanol was not used, and the addition amount of the main solvent 2-butanone was 80 g. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, an ink of this comparative example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was less than 1.5 times that in the vicinity of the air interface.
- Example 4 An ink was prepared in the same manner as in Example 1 except that the amount of the auxiliary solvent 2-butanol added was 2 g. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, an ink of this comparative example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was less than 1.5 times that in the vicinity of the air interface.
- Example 5 An ink having a different amount of the main solvent and the sub-solvent from that of Example 1 was prepared. 56 g of 2-butanone and 24 g of 2-butanol were added and dissolved. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, an ink of this comparative example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was 1.5 times higher than that in the vicinity of the air interface.
- Example 6 An ink was prepared in the same manner as in Example 1 except that the dye was solvent black 29 and the addition amount of chlorinated polypropylene was 0.5 g. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, an ink of this comparative example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was less than 1.5 times that in the vicinity of the air interface.
- Example 7 An ink was prepared in the same manner as in Example 1 except that the dye was solvent black 29 and the addition amount of chlorinated polypropylene was 5 g. The obtained liquid was filtered through a polypropylene filter having a pore size of 0.5 ⁇ m. Thus, an ink of this comparative example was prepared.
- the coating film was observed in the same manner as in Example 1. As a result, the diameter was 380 ⁇ m and the average film thickness was 1.3 ⁇ m.
- the chlorinated polypropylene concentration in the vicinity of the substrate interface was 1.5 times higher than that in the vicinity of the air interface.
- the inks prepared in Examples 1 to 7 and Comparative Examples 1 to 7 were ejected by a charge control type ink jet printer to form an assembly of dot-like coating films on a polypropylene substrate.
- a rub resistance test in which the dot-like film aggregate was rubbed 25 times with a weight of 0.3 MPa using an eraser was applied to the dot-like film aggregate 24 hours after printing. After this test, the presence or absence of peeling of the coating film was confirmed, and the adhesion was evaluated according to the following criteria.
- the film was shown to be highly scratch resistant.
- Tables 1 and 2 also show the evaluation results on the uneven distribution of chlorinated polypropylene in the coating films of Examples 1 to 7 and Comparative Examples 1 to 7. It shows that the chlorinated polypropylene concentration in the vicinity of the substrate interface of the coating film is 1.5 times or more and the x mark is less than 1.5 times compared with the vicinity of the air interface.
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Abstract
Description
インクは、樹脂、着色剤及び溶剤を含む。これらをオーバーヘッドスターラー等により撹拌混合し溶解した後、孔径0.25~10μmのフィルタにて濾過することによりインクジェットプリンタ用インクを得た。
樹脂としては、塩素系樹脂の他、アクリル樹脂、スチレン-アクリル樹脂若しくはポリエステル樹脂が用いられる。これらの樹脂は、単独で用いてもよいし、2種以上混合して用いてもよい。これらの樹脂は、溶剤として用いる2-ブタノン又はアセトンに対して可溶である必要がある。ここでいう塩素系樹脂は、塩素化ポリプロピレン、塩素化ポリエチレン、ポリ塩化ビニル及びポリ塩化酢酸ビニルを含む。アクリル樹脂は、アクリル酸、アクリル酸エステル、メタクリル酸又はメタクリル酸エステルから合成される単重合体樹脂及びこれらの共重合体樹脂を含む。スチレン-アクリル樹脂は、スチレン-アクリル共重合体樹脂及びスチレン-メタクリル共重合体樹脂を含む。ポリエステル樹脂は、ポリエチレンテレフタレート、ポリエチレンイソフタレート、ポリプロピレンテレフタレート、ポリプロピレンイソフタレート、ポリブチレンテレフタレート及びポリブチレンイソフタレートを含む。
着色剤は、溶剤に溶解する材料であれば特に限定は無い。着色剤の例としては、具体的にはVALIFAST(R) Yellow 3150, VALIFAST(R) Yellow 3170, VALIFAST(R) Yellow 4120, VALIFAST(R) Yellow 4121, VALIFAST(R) Orange 2210, VALIFAST(R) Orange 3209, VALIFAST(R) Red 1306, VALIFAST(R) Red 2320, VALIFAST(R) Red 3311, VALIFAST(R) Red 3312, VALIFAST(R) Pink 2310N, VALIFAST(R) Brown 3402, VALIFAST(R) Blue 1605, VALIFAST(R) Blue 1621, VALIFAST(R) Blue 2620, VALIFAST(R) Blue 2627, VALIFAST(R) Blue 2670, VALIFAST(R) Black 1807, VALIFAST(R) Black 3804, VALIFAST(R) Black 3810, VALIFAST(R) Black 3820, VALIFAST(R) Black 3830, VALIFAST(R) Black 3840, VALIFAST(R) Black 3866, VALIFAST(R) Black 3870(以上、オリヱント化学工業(株)製)、Orasol(R) Yellow 152, Neptun(R) Yellow 078, Orasol(R) Orange 247, Orasol(R) Orange RG, Orasol(R) Brown 322, Orasol(R) Brown 324, Orasol(R) Brown 326, Orasol(R) Red 330, Orasol(R) Red 385, Orasol(R) Red 363, Orasol(R) Red BL, Orasol(R) Pink 478, Orasol(R) Blue 825, Orasol(R) Blue GL, Neptun(R) Blue 755, Orasol(R) Black X55, Orasol(R) Black X45(以上、BASF製)、Savinyl Yellow RLS, Savinyl Red 3BLS, Savinyl Pink 6BLS, Savinyl Blue GLS, Savinyl Black RLSN(以上、Clariant製)、Solvent Yellow 25, 88, 89, Solvent Orange 11, 99, Solvent Brown 42, 43, 44, Solvent Red 122, 135, 127, 130, 233, Solvent Blue 67, 70, Solvent Black 27, 28, 29等が挙げられる。
インクの溶剤は、主溶剤と副溶剤とから構成されている。主溶剤には、20℃における蒸気圧が9.0kPa以上の有機溶剤を用いる。樹脂の溶解性の観点から、アセトン又は2-ブタノンを用いることが好ましい。これらを混合してもよい。副溶剤には、20℃における蒸気圧が0.6~2.0kPaである有機溶剤を用いる。樹脂の溶解性の観点から、アルコール若しくは脂肪酸エステルを単独又は2種以上混合して用いることが好ましい。
インク及び印字物の諸物性を調整するために添加剤を加えても良い。例えば、帯電制御方式のインクジェットプリンタ等で使用する場合は、インク液の導電率を調整するために導電剤を加えても良い。また、印字物の形状を平滑化させ、視認性を向上させるためシリコーン系添加剤を加えても良い。
上記のインクは、公知のインクジェットプリンタで使用することができる。このようなインクジェットプリンタとしては、例えば、帯電制御方式、ドロップ・オン・デマンド方式等のプリンタが挙げられる。因みに、凹凸のある面への高速印字においては、インク液滴の飛翔距離を長くとれる帯電制御方式が適している。
基板材料は、ポリプロピレン、ポリエチレンなどのポリオレフィン樹脂を用いる。ポリオレフィン樹脂はインクに含まれる樹脂と化学構造が似ているため、引き合う分子間力が大きくなる。そのため、インクに含まれる樹脂と基板との親和性が高くなり、印字物中の樹脂を基板側により偏在させることができる。インクを印字する基板の形状は平滑であっても凹凸があっても良い。
副溶剤をメチルイソブチルケトンとしたこと以外は、実施例1と同様にしてインクを調製した。得られた液を孔径0.5μmのポリプロピレン製フィルタで濾過した。こうして本比較例のインクを調製した。
副溶剤をエチルセロソルブとし、染料をsolvent black 29としたこと以外は、実施例1と同様にしてインクを調製した。得られた液を0.5μm孔径のポリプロピレン製フィルタで濾過した。こうして本比較例のインクを調製した。
染料をsolvent black 29とし、副溶剤の2-ブタノールを用いず、主溶剤の2-ブタノンの添加量を80gとしたこと以外は、実施例1と同様にしてインクを調製した。得られた液を孔径0.5μmのポリプロピレン製フィルタで濾過した。こうして本比較例のインクを調製した。
副溶剤の2-ブタノールの添加量を2gとしたこと以外は、実施例1と同様にしてインクを調製した。得られた液を孔径0.5μmのポリプロピレン製フィルタで濾過した。こうして本比較例のインクを調製した。
実施例1とは、主溶剤及び副溶剤の添加量が異なるインクを調製した。2-ブタノンを56g、2-ブタノールを24g添加し、溶解した。得られた液を孔径0.5μmのポリプロピレン製フィルタで濾過した。こうして本比較例のインクを調製した。
染料をsolvent black 29とし、塩素化ポリプロピレン添加量を0.5gとしたこと以外は、実施例1と同様にしてインクを調製した。得られた液を0.5μm孔径のポリプロピレン製フィルタで濾過した。こうして本比較例のインクを調製した。
染料をsolvent black 29とし、塩素化ポリプロピレン添加量を5gとしたこと以外は、実施例1と同様にしてインクを調製した。得られた液を0.5μm孔径のポリプロピレン製フィルタで濾過した。こうして本比較例のインクを調製した。
Claims (9)
- 着色剤、複数種の樹脂、及び添加剤を含み、ポリオレフィン樹脂の基板に形成された印字物において、
前記樹脂のうち少なくとも一種類が塩素系樹脂であり、
前記印字物における前記塩素系樹脂の濃度は、空気と前記印字物との界面である空気界面近傍部よりも、前記基板と前記印字物との界面である印字基板界面近傍部の方が高いことを特徴とする印字物。 - 請求項1において、
前記印字物の前記基板界面近傍部における前記塩素系樹脂の濃度は、前記空気界面近傍部における前記塩素系樹脂の濃度と比較して1.5倍以上であることを特徴とする印字物。 - 請求項1において、
前記塩素系樹脂が塩素化ポリプロピレンであることを特徴とする印字物。 - 着色剤、樹脂、及び溶剤を含むインクジェットプリンタ用インクにおいて、
前記樹脂が塩素系樹脂を含み、
前記溶剤が主溶剤及び副溶剤から構成され、
前記主溶剤の20℃における蒸気圧が9.0kPa以上であり、
前記副溶剤の20℃における蒸気圧が0.6~2.0kPaであることを特徴とするインクジェットプリンタ用インク。 - 請求項4において、
前記塩素系樹脂が塩素化ポリプロピレンであることを特徴とするインクジェットプリンタ用インク。 - 請求項4において、
前記主溶剤が2-ブタノン又はアセトンを含むことを特徴とするインクジェットプリンタ用インク。 - 請求項4において、
前記副溶剤がアルコール又は脂肪酸エステルを含むことを特徴とするインクジェットプリンタ用インク。 - 請求項4において、
前記副溶剤の前記溶剤中の割合が5~20質量%であることを特徴とするインクジェットプリンタ用インク。 - 請求項4において、
前記塩素化ポリプロピレン樹脂の前記樹脂中の割合が6~21質量%であることを特徴とするインクジェットプリンタ用インク。
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Citations (6)
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|---|---|---|---|---|
| JPH10195356A (ja) * | 1997-01-08 | 1998-07-28 | Dainippon Toryo Co Ltd | ジェット印刷用インク組成物 |
| JP2005060716A (ja) * | 2003-06-12 | 2005-03-10 | Hitachi Maxell Ltd | 油性顔料インク組成物 |
| WO2007072910A1 (ja) * | 2005-12-22 | 2007-06-28 | Sakata Inx Corp. | インクジェット記録物の製造方法およびその方法によって得られるインクジェット記録物 |
| JP2011016964A (ja) * | 2009-07-10 | 2011-01-27 | Sakata Corp | コンティニュアス型インクジェットインク組成物 |
| JP2012072236A (ja) * | 2010-09-28 | 2012-04-12 | Kishu Giken Kogyo Kk | インクジェット用インク |
| JP2012131885A (ja) * | 2010-12-21 | 2012-07-12 | Tokyo Printing Ink Mfg Co Ltd | レーザー記録用インキ組成物、記録用積層体および記録体 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1454140A (zh) * | 2000-06-09 | 2003-11-05 | 3M创新有限公司 | 用于生产防水耐用的水性喷墨接受介质的材料和方法 |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10195356A (ja) * | 1997-01-08 | 1998-07-28 | Dainippon Toryo Co Ltd | ジェット印刷用インク組成物 |
| JP2005060716A (ja) * | 2003-06-12 | 2005-03-10 | Hitachi Maxell Ltd | 油性顔料インク組成物 |
| WO2007072910A1 (ja) * | 2005-12-22 | 2007-06-28 | Sakata Inx Corp. | インクジェット記録物の製造方法およびその方法によって得られるインクジェット記録物 |
| JP2011016964A (ja) * | 2009-07-10 | 2011-01-27 | Sakata Corp | コンティニュアス型インクジェットインク組成物 |
| JP2012072236A (ja) * | 2010-09-28 | 2012-04-12 | Kishu Giken Kogyo Kk | インクジェット用インク |
| JP2012131885A (ja) * | 2010-12-21 | 2012-07-12 | Tokyo Printing Ink Mfg Co Ltd | レーザー記録用インキ組成物、記録用積層体および記録体 |
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| CN105102554B (zh) | 2018-10-02 |
| JPWO2014156366A1 (ja) | 2017-02-16 |
| JP6006865B2 (ja) | 2016-10-12 |
| CN105102554A (zh) | 2015-11-25 |
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