TW524831B - Ink composition - Google Patents

Abstract

An ink composition in the present invention comprises: (a) at least a water soluble dye; (b) at least a solvent having a low vapor pressure; (c) a non-ionic non-amphoteric surfactant; (d) a fluorine-containing surfactant; and (e) water. The invented ink composition is suitable for a thermal sensitive ink jet printer.

Description

524831 A7

-I I I · (Please read the precautions on the back first, then this page) Order · · Line · V. Invention Description (2) (whisker) and scatter phenomenon. — However, most of the inks known so far are scattered due to unstable ink jets during printing. The so-called satellite means that when the printer shoots the ink nozzle on the printing substrate, the ink is ejected from the nozzle—instantly 3 drops will form the main ink drop and some small ink drops. Therefore, there are many small dots appearing next to the border of the printer's printing color, and these color dots are caused by scattered dots. If the scattered dots are serious, contamination will occur during color mixing, making the image blurred and unclear. This has a great impact on print quality, which is its disadvantage. 2 / These inks are always unsatisfactory. At present, in the market, there are methods for reducing the scattering phenomenon during inkjet. Some of them use the design of the inkjet head (as in US Patent No. 4,794,4 ι =), and the heating plate directly below the nozzle (orifice) ( resist〇r) do-proper displacement. Or use the improvement of the printer design to slow down the inkjet head's moving speed during the return printing (U.S. Patent No. 5,992,968 "to reduce the distance between the scattered point and the main point. But these methods can only make The scatter phenomenon can be reduced without reducing the scatter phenomenon. In order to obtain the ink used in the inkjet recording method, the invention has image consistency, and has high resolution and texture density, and can eliminate burrs and pollution. And the phenomenon of scattered points, the inventor of this case, after extensive research, found that the ink composition with some special composition can achieve the purpose of the present invention, and the results obtained are stated in the present invention. The purpose is to provide an inkjet ink composition for printing on 524831 A7

‘Explanation of the invention (3) Printing on a substrate has characteristics such as reducing satellite phenomenon, eliminating ink blots, and excellent image quality. (Please read the precautions on the back before this page). The ink composition of the present invention contains: ⑷ at least-a water-soluble dye; (b) at least-a low vapor pressure solvent; (0_ non-ionic non-amphoteric interface activity (D) —fluorine-containing surfactants; and (e) water. The ink composition of the present invention is suitable for use in a thermal inkjet printer. [Detailed description of the invention] The ink composition of the present invention, It includes (a) at least one water-soluble dye; (b) at least one low vapor pressure solvent; (c) a non-ionic non-amphoteric surfactant, (d)-a fluorine-containing surfactant; and (e) water. In addition, the ink composition of the present invention may further include _composition components, additives, i-line, printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, and the water-soluble dye in the ink composition of the present invention may be selected from the group consisting of · Acid Monitor Color No.9, C · I · Acid Red 1 No.8, C · I · Acid Red No.27, C · [[Acid Red No.2, · Acid Yellow No.23, · Direct Blue No.199, CI Direct Purple 99, CI Direct Yellow 86, c · · · Reactive Red 1 No. 80, C · I · Reactive Red No. 15-9, C · I · Reactive Black No. 3 No. 1 and Black-sp. The water-soluble dyes in the ink composition of the present invention may use the above dyes alone or in combination Alkali gold salt or ammonium salt of the dye. The concentration range of the water-soluble dye is preferably between 0.01 and weight percent (wt%). The low vapor pressure solvent of the ink composition of the present invention may be selected from the group consisting of: glycols (Glycols) For example, ethylene glycol, two paper standards (CNS) A4 specification ⑵ G χ 297 public love) ------- 524831 A7 B7 employee consumption of Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative V. Description of the invention (4 *) Diethylene glycol, triethylene glycol, tetraethylene glycol, propyiene giyc〇1 ), Polyethylene glycol, polypropylene glycol and derivatives thereof; diols such as butanediol, pentanediol , Hexanediol and homogeneous diols (homolo gous diols); glycol esters (g 1 yc ο 1 esters) such as propylene glycol laurate; mono and di glycol ethers (mono and di glycol ethers) such as Sai (Cellosolve), including ethylene glycol monobutyl ether, diethylene glycol ethers such as carbitol, diethylene glycol monoethyl ether Diethylene glycol mono ethyl ether, diethy 1 ene glycol mono butyl ether, diethylene glycol mono hexyl ether, propylene glycol Ether (propylene glycol ether), dipropylene glycol ether (dipropylene glycol ether), and tripropylene glycol acid (triethylene glycol ether); long chain alcohols (long chain alcohols) (Butyl alcoho), pentyl alcohol, and homologous alcohols; other solvents, such as it su 1 f ο 1 ane, esters, ket ο nes, internal Lactones Factory-Ding Nei Zhi Ji (.yi 31111113.-13111) ^ 〇-1 act 〇ne), and mouth ratio ρ various types (1 actams) such as 2-mouth billow bite (2-this paper size applies to China National Standard (CNS) A4 (210 X 297%) (Please read the phonetic on the back? Matters on this page) Too much tT. Line · 524831 A7 _ B7 V. Description of the invention (s) pyrrolidone), N-pyrrolidone and N- (2-ethyl chloride) ratio p each ketone (N- (2-hydroxyethyl) pyrrolidone), and glycerol (g 1 ycer ο 1 s) and its derivatives. Low vapor pressure solvents, preferably P-pyrrole and glycol mixtures. The concentration range of the low vapor pressure solvent is preferably between 0 and 20% by weight (wt%). Nonionic and amphoteric surfactants of the ink composition of the present invention, such as acetylene glycol of the formula (I) (such as SURFYNOLS 465 or SURFYNOLS 104 ^ sold by Air Products & Chemicals, Inc) (please read the back first) (Notes on this page) ch3 ch3.

ch3 ch3 「1 Ί 0 rl n 0 1 1 ch2 ch2 1 ch2 _ 1-η ch2 L | Integer. It is preferably 0 to 20. The fluorine-containing surfactant of the ink composition of the present invention. The fluorine-containing surfactant such as FC-43 0, FC-431, FC-740 (sold by 3Iv Co_ ) Fluoroaliphatic Polyesters (Flu〇r〇aUphati (polymeric esters) 〇 This paper size applies to Chinese National Standard (CNS) A4 specifications (21〇X 297 public love) 524831 V. Description of the invention (6) Non-ionic non- The mixing ratio of amphoteric surfactants and fluorine-containing surfactants is better. The weight ratio is between 丨: 丨 and 0 · 0 · 1. In this ratio range, there will be good printing effects. More Jia Xijiewan; 30 · 1 to 8 00 ·· i. The concentration range of the non-ionic non-amphoteric surfactant is 0 · 1 to 3 wt%, and the concentration range of the fluorine-containing surfactant is 0 · 00 1 to 0.005 wt%. Additives can be added to the ink composition of the present invention as needed. The system can be microbial reagents (such as NUOSEPT (sold by Nudex, Inc. 5 a division of Huls Americal), UCARCIDE (sold by UniOn), VANCIDE (sold by RT Vanderbilt Co ·), and PROXEL (sold by ICI Americas). The concentration range of the microbicide is preferably in the range of 0.001 to 0.5 wt%. In the ink composition of the present invention, the remaining ingredients are balanced with water. The present invention is used in the following examples. Further explanation and comparison. However, the present invention should not be limited to these examples. Example 1 Take 1.68 parts of CI Acid Yellow 23, 2-. 2-pyrrolidone, monoethylene glycol (Diethylene glyc〇l) 7 parts, PrOxel χ12 microbicide 0.2 parts, SURFYNOLS 465 non-ionic non-amphoteric surfactant 0.5 wound, 0.2% FC-430 fluorine-containing surfactant series i And 83.62 parts of water and water, respectively, and mixed at room temperature to prepare the ink composition of the present invention. The paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 g t) ~ ---- (Please (Please read the notes on the back before this page) Printed by the Consumer Affairs Cooperative of the Industry Bureau 524831 Five_Printed A7 by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs (7) '— matter, the amount of each component of the ink composition (wt 〇 / 〇) 〇 is the most important I Percentage Example 2 The steps of Example 1 were repeated, but the ratio of the constituents was changed as shown in Table 1, and the ink composition of the present invention was prepared by mouth. 'Comparative Example 1 The steps of Example 1 were repeated, but the composition ratio was changed as shown in Table 丨 to prepare an ink composition. This ink composition was not added with SURFYNOLS 465. Comparative Example 2 The procedure of Example 1 was repeated, but the composition ratio was changed as shown in Table 1 to obtain an ink composition. FC-430 was not added to this ink composition. Table 1 Ink Composition Example 1 Example 2 Comparative Example 1 Comparative Example 2 CI · Acid Yellow 23 1.68 1.68 1.68 1.68 2- ° pyrrolidone 6 6 6 6 Diethylene glycol 7 7 7 7 Proxel xl 2 0.2 0.2 0.2 0.2 SURFYNOLS 465 0.5 1.5 0 0.2 0.2% FC-430 1 1 0.5 0 Water 83.62 82.62 84.62 84.92 9 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 524831 A7 _ B7 Five, # Explanation (3) Examples 3 to 7 and Comparative Examples 3 to 丨 repeat step 4 of Example 1 to obtain an ink composition. However, the composition ratio is changed, for example, printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives, and printed on the sheet. 2 Ink composition Example 3 Example 4 Comparative example 3 CI Acid Red No. 52 2 2 2 CI · Reactive Red No. 180 2 2 2 1_ CI Reactive Red No. 159 0.8 0.8 0.8 ~ 2-Porrolidone 6 6 6 Diethylene glycol 7 7 7 Proxel xl2 0.2 0.2 0.2 SURFYNOLS 465 0.4 0.5 0 0.2 ° / 〇FC-430 2 1 1 1 water 79.6 80.5 8 1.0

Ink Composition Example 5 Comparative Example 5 Comparative Example 6 CI · Direct Blue No. 199 ---- 1 2 2 2 2-Porrolidone 6 6 6 Diethylene glycol 7 7 7 Proxel xl2 0.2 0.2 0.2 SURFYNOLS 465 0.1 0 0.2 (Please read the notes on the back first and then on this page} Order: Paper ft scale applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) 524831 A7 Table 4 Ink Composition Example 6 Example 7 Comparative Example 7 Comparative Example 8 CI Reactive Black No. 31 0.5 0.5 0.5 〇5 CI Direct Violet No. 99 0.2 0.2 0.2 0.2 Black-sp (manufactured by Bayer) 4 4 4 4 2- ° pyrrolidone 6 6 6 6 2 Ethylene glycol 7 7 7 7 Proxel xl2 0.2 0.2 0.5 0.2 SURFYNOLS 465 0.5 0.5 0 0.3 0.2 ° / 〇FC-430 1.5 1 0.5 〇Water 80.1 80.6 81.3 81.8 (Please read the note on the back first? Matters and then 1 copy Page) Ί-Τ · 5. Description of the invention (Β7 0.2% FC-430 1.5 0.5 0 Water 83.2 84.3 84.6 Experimental test method: Print on the substrate with a thermal inkjet printer, and observe the scattered point pollution And image quality (lmage quality), and use the following criteria to measure its printing effect. T Scatter: Print the box graphic with a small magnifying glass under a fixed range, and visually observe the blank part that is not printed at the edge of the box. Approximately calculate how many smart paper sizes are applicable to China National Standard (CNS) A4 (210 X 297 centimeters) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 524831 A7 B7 V. Description of the invention (10) Ink-jet point: 0 ~ 10 represents ◎ Excellent 10 ~ 25 represents △ Ordinary 30 or more represents X Poor pollution: print square Under the fixed range of the figure, visually observe whether there are any dark streaks in the printed part of the box, and calculate how many streaks there are. Stripes: 0 ~ 1 represents ◎ Excellent 2 ~ 3 represents △ Normal 4 or more represents X poor image Quality: Print the box graphics for visual observation. (Please read the precautions on the back then -11 ^ ___ this page)-· Line · ◎ Excellent Δ Normal X Poor test results: as shown in Table 5 Employee Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs Printed Table 5 Item Scattered Image Quality Example 1 ◎ ◎ ◎ Example 2 ◎ △ Δ Comparative Example 1 ◎ ◎ X Comparative Example 2 ◎ ◎ △ Paper Scale applicable Chinese National Standard (CNS) A4 size (210 X 297 duo PCT) 524831 A7

Example 3 ◎ Example 4 ◎ ◎ ◎ △ Comparative Example ◎ Comparative Example 4 △ Example 5 ◎ ◎

X △ Comparative Example ◎ ◎ ◎ Comparative Example 6 △

X ◎ Example 6 ◎ ◎

X (Please read the precautions on the back before the examples ◎ ◎ Comparative Examples ◎ ◎ -I-I I Page) Comparative Example 8 ◎ ◎ From the test results in Table 5, it can be seen that the examples

X △-5 and 6 are excellent in scatter, pollution and image quality; Examples 2, 4 ^. ^ The scatter and pollution of 4 and 7 are superior 'and the image quality is normal. As for Comparative Example 3, the quality of printed shirts by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs is poor. Only Comparative Examples 2 and 4 have ordinary image quality, and E. 1 is better than Private Example 4. Its scattered points and pollution are only Jintong. That is to say, from the test results in Table 5, the ink composition of the present invention, _Yutai ", is improved by adding two non-ionic surfactants, which improves the printing quality compared with those that are not conventionally added ^ This paper size Applicable to China National Standard (CNS) A4 specifications (210 X 297 centimeters)

Claims (1)

524831 Λ8 B8 C8 〇8 6. Scope of patent application ^ " '" 2 · The ink composition as described in item 1 of the scope of patent application, wherein the sum of 0 and m is 0 to 20. 3. The ink composition according to item 1 of the scope of the patent application, wherein the mixing ratio of the non-ionic non-amphoteric surfactant and the fluorine-containing series of surfactants is in the range of 1: 1 to 1000. : 1 ◦ 4 The ink composition according to item 3 of the scope of patent application, wherein the mixing ratio of the non-ionic non-amphoteric surfactant and the fluorine-containing surfactant is between 30: 1 to 8 00: 1. 5. The ink composition according to item 1 of the patent claim, wherein the concentration range of the non-ionic non-amphoteric surfactant is from 0.1 to 3 wt%, and the concentration range of the fluorine-containing surfactant series 〇. 〇〇1 to 〇. 〇 05 wt% 〇ό · The ink composition as described in the first patent claim, wherein the concentration of the water-soluble dye is in the range of 0.1 to 10 weight percent (wt %) 〇7. The ink composition according to item 1 of the scope of the patent application, wherein the mammals are 2-different from mouth to mouth. 8. The ink composition as described in item 1 of the patent application scope, wherein ethylene glycol is diethylene glycol. 9. The ink composition according to item 1 of the scope of patent application, wherein the concentration of the low vapor pressure solvent ranges from 0 to 20 weight percent (Wt%). 0. 10 The ink composition further includes a microbicide. 1 5 This paper size applies to China National Standard (CNS) A4 specification (210X297), ---------- # 丨 装 --------- Order ------- line丨 (Please read the notes on the back before filling in the columns on this page) 524831 A8 B8 C8 D8 • Patent application scope 1 1. The ink composition as described in the patent application scope item 10, where the concentration of the microbicide The range is from 0.1 to 0.5 wt% ◦ 6 (Please read the notes on the back before filling in the palms on this page) Applicable to China National Standard (CNS) A4 specification (210X297 mm) 524831,,-丨 T ”.-. F-No. 89Ϊ21133 1. Scope of patent application An ink composition containing: (a) at least one kind of water-soluble Dyeing CI Acid Blue No. 9 and c τ, the material-soluble dyes are selected from the group consisting of: ^ 27 ^ η 丄 bismuth red No. 18, CI acid red 27 、, CI acid red Γ τ 2 2 、, c. I · Acid Yellow 2 No. 3, CI · Direct Monitoring Color No. 199, # 、 0 r · I · Direct Skin Color 9 9, C. I · Direct I Color 8 6, C · I · Anti-etching, △ ις〇d Health color 丨 80, CI Responsive red No. 159, C 黑 reactive black, No. 31 and Black-sp or mixtures thereof, (b) 土 v #low pressure solvent, the low vapor pressure solvent is selected from the group consisting of ethylene glycol , Glycols, glycol esters, mono- or diethylene glycol esters, long-chain alcohol noodles, shape & drunk, /, alcohol, ketones, lactones and% P each _ & lt Its mixture; & (c) non-ionic non-amphoteric surfactant, which is an acetylene glycol of formula (I), (Please read the notes on the back before copying (Each column of the page) T-installation -------- Order—— Yan 3 ch3 ch3 ch3-ch-cHr-^-CS (> 4-CHr4H_CH 3 · 〇 I ch2 I • Γ2 OH 0 1 ch2 ch2 .1 OH where n and m are integers between 0 and 50; (d) — a fluorine-containing surfactant, which refers to a fluorine-containing aliphatic polyester; and (e) Water. 14 This paper size applies to China National Standard (CMS) A4 (210X297 mm) line.