KR101879576B1 - Cleaning solution composition for offset-printing cliche and cleaning method using the same - Google Patents

Abstract

The present invention relates to an offset printing plate cleaning liquid composition and a cleaning method using the same, and more particularly relates to an offset printing plate cleaning composition comprising 1 to 25% by weight of an organic amine compound; 10 to 70% by weight of aromatic alcohol; And 20 to 80% by weight of an organic solvent, so that the solidified ink remaining on the scraped plate, that is, not only the BM but also all of the RGB inks, is obtained without containing the corrosion inhibitor and the fluorine compound, The offset printing plate cleaning liquid composition capable of ensuring the reproducibility of the printing pattern by uniformly and simultaneously removing at a high speed and being able to continuously perform the direct cleaning process during the offset process to improve the process yield and productivity And a cleaning method using the same.

Description

TECHNICAL FIELD [0001] The present invention relates to an offset printing plate cleaning liquid composition for offset printing and a cleaning method using the same. BACKGROUND ART [0002]

The present invention relates to an offset printing plate precursor cleaning composition capable of rapidly removing solidified ink remaining on an intaglio after offset printing, and a cleaning method using the same.

The offset printing method has a merit of being capable of precisely printing fine patterns having a size of several tens to several hundreds of microns at a low cost without generating a harmful waste liquid, and has become a technology capable of replacing the photolithography process.

Of the offset printing methods, the intaglio offset printing method has been studied as a technique suitable for forming a fine pattern for wiring which is easy to form a fine pattern having a line width of 200 mu m or less and a relatively high height and is required to have high electrical conductivity.

In the intaglio offset printing method, ink is filled in an engraved part of an intaglio plate engraved with a pattern to be printed on a flat surface of a base material, the transferred ink is transferred to a blanket, and then re-transferred to the blanket . The shape of the fine pattern formed by the intaglio offset printing method is easily influenced by the fluidity of the ink, the pressure applied to the intaglio plate, or the like. When the ink filled in the intaglio plate is not transferred to the blanket, it is deformed. This is disadvantageous in that it is difficult to ensure the reproducibility of the fine pattern.

In order to solve this problem, residual ink is removed by a method of periodically cleaning the intaglio plate once or several times after intaglio offset printing. As the cleaning liquid, an amine-based solution is used as an ordinary peeling liquid or a cleaning liquid, but this solution has a disadvantage in that it is difficult to completely remove the solidified ink, and the corrosion resistance to metal is strong, so that a separate corrosion inhibitor is required. In addition, a solution containing a fluorine compound is also used, but this solution has a disadvantage that its stability is poor and the content of fluorine is high.

It is also difficult to simultaneously remove the red (R), green (G) and blue (B) inks for the black matrix (BM) and the alginic (RGB) It is difficult to remove the ink solidified after intaglio offset printing in a short period of time, so that the ink removal rate is slowed down and the productivity is lowered. You can.

The present invention relates to an offset printing plate precursor cleaning composition capable of rapidly removing all the inks for RGB as well as the residual BM on an intaglio plate containing fine patterns without damaging the intaglio without containing a corrosion inhibitor and a fluorine compound The purpose is to provide.

Another object of the present invention is to provide a cleaning method in which a cleaning process can be continuously performed in-line in an offset printing process using the offset printing offset cleaning liquid composition.

1. 1 to 25% by weight of an organic amine compound; 10 to 70% by weight of aromatic alcohol; And 20 to 80% by weight of an organic solvent.

2. The offset printing plate precursor cleaning composition according to 1 above, wherein the organic amine compound is a compound represented by the following Formula 1:

(Wherein R ₁ to R ₃ are independently a hydrogen atom, a substituted or unsubstituted alkyl or hydroxyalkyl group having 1-10 carbon atoms, a substituted or unsubstituted alkenyl or hydroxyalkenyl group having 2-10 carbon atoms, a carboxyl group , A substituted or unsubstituted cycloalkyl group or a hydroxycycloalkyl group having 5 to 8 carbon atoms, a phenyl group or a benzyl group, and when R ₁ to R ₃ are substituted, an amino group substituted or unsubstituted with an alkyl group having ₁ to 4 carbon atoms, , A hydroxy group, an alkyl group having 1-10 carbon atoms, or an alkyl group having 1-10 carbon atoms substituted with an alkoxy group having 1-10 carbon atoms which is substituted or unsubstituted with a hydroxy group).

3. The offset printing plate precursor cleaning composition according to 1 above, wherein the aromatic alcohol is a compound represented by the following formula (2):

(Wherein R ₄ is an alkyl group having 1-5 carbon atoms, an alkenyl group having 2-5 carbon atoms or a hydroxyalkyl group having 1-5 carbon atoms, and R ₅ is a hydrogen atom, a hydroxy group or a hydroxyalkyl group having 1-5 carbon atoms) .

4. The composition according to item 3 above, wherein the compound represented by formula (2) is at least one selected from the group consisting of benzyl alcohol, phenethyl alcohol, phenyl propanol, phenylpropanol, hydroxybenzyl alcohol and hydroxyphenethyl alcohol Composition.

5. The process of claim 1 wherein the organic solvent is selected from the group consisting of an ether compound and an acetate derivative thereof, an alcohol compound, a pyrrolidone compound, an amide compound, an imidazolidinone compound, a lactone compound, a sulfoxide compound, , A carbonate-based compound, and a cresol-based compound.

6. The offset printing separator cleaning liquid composition according to item 5 above, wherein the organic solvent is a mixed solvent of an ether compound and an acetate derivative thereof.

7. The process of claim 5, wherein the ether compound is selected from the group consisting of ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, polyethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, Ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, propylene glycol monomethyl ether or dipropylene glycol monomethyl ether.

8. The composition of claim 1, wherein the organic amine compound is 3 to 15% by weight; 20 to 50% by weight of aromatic alcohol; And 35 to 70% by weight of an organic solvent.

9. A cleaning method comprising the step of dissolving and removing the ink remaining on the intaglio with the offset printing offset cleaning composition of any one of items 1 to 8 above.

10. A cleaning method as in 9 above, wherein the cleaning process is performed continuously on an in-line during the offset printing process.

INDUSTRIAL APPLICABILITY The offset printing plate cleaning liquid composition according to the present invention does not contain a corrosion inhibitor and a fluorine compound and can dissolve the solidified ink remaining on the intaglio plate at a high speed without causing damage to the intaglio plate in which the fine pattern is formed, Reproducibility of the pattern can be ensured.

Further, the cleaning liquid composition of the present invention can simultaneously remove both the BM and the RGB inks uniformly and at a high speed, and the ink removed by the cleaning can be reabsorbed on the intaglio plate to prevent re-contamination of the intaglio plate .

In addition, the cleaning composition and cleaning method of the present invention can be introduced directly during the offset process to continuously perform the cleaning process in-line, thereby improving the process yield and productivity.

1 is an optical microscope photograph of the offset printing intaglio plate formed with fine patterns,
2 is an optical microscope photograph of a green specimen (a) and a black specimen (b) cleaned for 20 seconds with the cleaning liquid composition according to Example 3 of the present invention,
3 is an optical microscope photograph of the green specimen (a) and the black specimen (b) cleaned with the cleaning composition according to Comparative Example 1 for 20 seconds.

The present invention relates to an offset printing plate precursor cleaning composition capable of rapidly removing solidified ink remaining on an intaglio after offset printing, and a cleaning method using the same.

Hereinafter, the present invention will be described in detail.

The offset printing offset cleaning liquid composition of the present invention comprises 1 to 25% by weight of an organic amine compound; 10 to 70% by weight of aromatic alcohol; And 20 to 80% by weight of an organic solvent.

Preferably, the offset printing offset cleaning composition of the present invention comprises 3 to 15% by weight of an organic amine compound; 20 to 50% by weight of aromatic alcohol; And 35 to 70% by weight of an organic solvent.

The organic amine compound swells the solidified ink remaining on the intaglio plate and smoothes the dispersion of the pigment contained in the ink so that the ink dissolved in the rinsing process after the cleaning is removed without being reabsorbed on the intaglio plate.

Examples of the organic amine compound include compounds represented by the following formula (1): < EMI ID =

[Chemical Formula 1]

Wherein R ₁ to R ₃ are independently a hydrogen atom, a substituted or unsubstituted alkyl or hydroxyalkyl group having 1-10 carbon atoms, a substituted or unsubstituted alkenyl or hydroxyalkenyl group having 2-10 carbon atoms, a carboxyl group, A substituted or unsubstituted cycloalkyl group or a hydroxycycloalkyl group having 5 to 8 carbon atoms, a phenyl group or a benzyl group. When these R ₁ to R ₃ are substituted, an alkyl group having 1 to 10 carbon atoms substituted or unsubstituted with an amino group, a carboxyl group, a hydroxy group, an alkyl group having 1 to 10 carbon atoms, a hydroxyl group or a substituted or unsubstituted alkoxy group having 1 to 4 carbon atoms May be substituted with an alkyl group having from 1 to 10 carbon atoms substituted with a group.

The compound represented by the general formula (1) is a compound represented by the following general formula (1): methylamine, ethylamine, monoisopropylamine, n-butylamine, sec-butylamine, isobutylamine, t- butylamine, pentylamine, monoethanolamine, Amino-1-butanol, 2- (2-aminoethoxy) ethanol, methyl (methoxymethyl) ) Primary amine compounds such as aminoethane, methyl (methoxymethyl) aminoethanol and methyl (butoxymethyl) aminoethanol; There may be mentioned dimethylamine, diethylamine, dipropylamine, diisopropylamine, dibutylamine, diisobutylamine, methylethylamine, methylpropylamine, methylisopropylamine, methylbutylamine, methylisobutylamine, diethanolamine , Secondary amine compounds such as 2- (ethylamino) ethanol, 2- (methylamino) ethanol and dibutanolamine; But are not limited to, trimethylamine, triethylamine, tripropylamine, tributylamine, tripentylamine, dimethylethylamine, methyldiethylamine, methyldipropylamine, triethanolamine, N-methyldiethanolamine, N, (Methoxymethyl) diethylamine, (methoxymethyl) diethanolamine, and (hydroxyethyloxymethyl) diethylamine, and the like such as N, N-diethylethanolamine, (butoxymethyl) diethylamine, And amine compounds. These may be used alone or in admixture of two or more.

The organic amine compound is preferably contained in an amount of 1 to 25% by weight, more preferably 3 to 15% by weight, based on 100% by weight of the total offset printing plate precursor cleaning composition. If the content is less than 1% by weight, the ink remaining on the intaglio can not be sufficiently swollen to deteriorate the ink removing ability. If the content exceeds 25% by weight, the content of the other components may be decreased, It may cause a decrease in speed.

The aromatic alcohol is an organic solvent which is very effective in dissolving the resin contained in the ink remaining on the intaglio plate and is a component which swells and dissolves the solidified ink in a short period of time to accelerate permeation of the organic amine compound to the surface of the intaglio plate, to be.

The aromatic alcohols include compounds represented by the following formula (2): < EMI ID =

(2)

Wherein R ₄ is an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or a hydroxyalkyl group having 1 to 5 carbon atoms; R ₅ may be a hydrogen atom, a hydroxy group or a hydroxyalkyl group having 1-5 carbon atoms.

Examples of the compound represented by the formula (2) include benzyl alcohol, phenethyl alcohol, phenylpropanol (cinnamyl alcohol), phenylpropanol, hydroxybenzyl alcohol and hydroxyphenethyl alcohol. Can be used.

The aromatic alcohol is preferably contained in an amount of 10 to 70% by weight, more preferably 20 to 50% by weight, based on 100% by weight of the total amount of the offset printing plate precursor cleaning composition. When the content is less than 10% by weight, the swelling and dissolving power of the resin contained in the ink remaining on the intaglio may be lowered, resulting in deterioration of the cleaning performance of the solidified ink. When the content exceeds 70% by weight, Due to the characteristics of the compound itself, the cleaning agent itself remains on the intaglio after the rinsing process, thereby causing printing failure of the ink.

The organic solvent is a component for preventing the ink dissolved by the aromatic alcohol having low affinity to water from being reabsorbed on the intaglio plate in removing the ink remaining in the intaglio by the rinsing process and then removing the ink by the rinsing process.

As the organic solvent, both quantum and aprotic polar solvents can be used.

Examples of the protonic polar solvent include ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, polyethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, ethylene glycol monobutyl ether , Diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, propylene glycol monomethyl ether, and dipropylene glycol monomethyl ether; and acetate derivatives thereof; And alcohol-based compounds such as propanol, butanol, isopropanol and tetrahydroperfuryl alcohol. Examples of the aprotic polar solvent include amide compounds such as formamide, N-methylformamide and N, N-dimethylformamide; Pyrrolidone compounds such as N-methylpyrrolidone and N-ethylpyrrolidone; Imidazolidinone compounds such as 1,3-dimethyl-2-imidazolidinone and 1,3-dipropyl-2-imidazolidinone; lactone-based compounds such as? -butyrolactone; Sulfoxide compounds such as dimethyl sulfoxide and sulfolane; Phosphate-based compounds such as triethyl phosphate, tributyl phosphate and the like; Carbonate-based compounds such as dimethyl carbonate and ethylene carbonate; cresol compounds such as 慣 -cresol, m-cresol and ρ-cresol, and the like. These may be used alone or in combination of two or more. Among them, the ether compound and its acetate derivative are preferred from the viewpoint of better solubility in ink and better cleaning performance, more preferably, affinity with water is more preferable, and there is no possibility of the detergent remaining in the rinsing process, It is preferable to use a mixture of an ether compound and an acetate derivative thereof. At this time, the weight ratio of the ether compound and the acetate derivative thereof is not particularly limited and may be adjusted according to the application and the desired effect.

The organic solvent is preferably contained in an amount of 20 to 80% by weight, more preferably 35 to 70% by weight, based on 100% by weight of the total amount of the offset printing plate precursor cleaning composition. If the content is less than 20% by weight, the solubility of the resin contained in the ink remaining on the intaglio may be insufficient. On the other hand, if it exceeds 80% by weight, the content of the other components in the cleaning liquid is relatively small, The swelling speed is lowered and the performance of the cleaning liquid can be lowered.

INDUSTRIAL APPLICABILITY The offset printing plate precursor cleaning composition of the present invention does not require a corrosion inhibitor and does not contain a fluorine compound even though it contains an organic amine used in a conventional photoresist stripping liquid or a cleaning liquid, so that the stability of the solution is excellent, It is possible to simultaneously remove both the ink for RGB as well as the solidified ink remaining in the scaffold, that is, the BM, uniformly and at a high speed. In particular, not only the ink solidified after the printing process as the organic cleaning liquid but also the residual ink not solidified on the in-line in the printing process can be directly dissolved and removed, thereby improving the process yield and productivity. In addition, the ink dissolved through cleaning can be easily removed through the rinsing process, so that the dissolved ink can be prevented from being adsorbed on the backing plate to contaminate the backing plate. Thus, reproducibility of the print pattern can be ensured.

The above offset printing plate precursor cleaning composition of the present invention can be produced by a conventional method.

The present invention provides a cleaning method comprising the step of dissolving and removing the ink remaining on the intaglio plate with the offset printing preparative cleaning fluid composition.

In particular, the cleaning method of the present invention is characterized not only by the offset printing process but also by introducing the cleaning process during the offset printing process before the ink is solidified by using the organic cleaning liquid composition. That is, the cleaning liquid composition can be treated on the intaglio plate on in-line during the offset printing process to remove the solidified ink remaining on the intaglio plate as well as the non-solidified residual ink directly by dissolving it directly at a uniform rate. In this way, reproducibility of the print pattern can be ensured and at the same time, the takt-time can be reduced and the process yield and productivity can be greatly improved.

As a method for cleaning the offset printing intaglio plate using the cleaning liquid composition of the present invention, for example, there are a method of directly immersing the intaglio plate containing the ink remaining in the fine pattern in the cleaning liquid composition, a method of spraying the cleaning liquid composition on the intaglio plate, And a method of brushing after applying the composition. These methods may be used in combination. At this time, bubbles or ultrasonic waves may be applied to enhance the cleaning effect.

In addition, the use conditions (temperature, time, etc.) of the cleaning liquid composition are not particularly limited and may be appropriately selected depending on the content and concentration of the ink remaining on the intaglio plate, Lt; RTI ID = 0.0 > 25 C < / RTI > to 60 C for 10 seconds to 3 minutes.

After the intaglio plate is treated with the cleaning liquid composition of the present invention, a step of rinsing with water or an alcohol-based solvent may be further performed if necessary. The rinsing method is not particularly limited and may be performed by, for example, spraying water at a constant pressure using a spray nozzle and a cleaning knife. At this time, deionized distilled water, for example, deionized distilled water for semiconductor processing, having a resistivity of 18 M / cm can be used as the water.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to be illustrative of the invention and are not intended to limit the scope of the claims. It will be apparent to those skilled in the art that such variations and modifications are within the scope of the appended claims.

Example

Example 1

10 parts by weight of monoisopropanolamine (MIPA), 40 parts by weight of benzyl alcohol (BA) and 50 parts by weight of triethylene glycol monomethyl ether (MTG) were mixed and stirred to prepare an offset printing plate cleaning liquid composition.

Examples 2-10 and Comparative Examples 1-8

The cleaning liquid composition was prepared in the same manner as in Example 1 except that the components and the contents as shown in Table 1 below were used. Here, the content represents weight%.

division Organic amine Aromatic alcohol Organic solvent water Kinds content Kinds content Kinds content Example 1 MIPA 10 BA 40 MTG 50 - Example 2 MEDA 10 BA 40 MTG 50 - Example 3 MEDA 10 BA 30 MTG / PGMEA 40/20 - Example 4 MEDA 10 BA 30 PGME / PGMEA 40/20 - Example 5 MEDA 10 BA 30 MTG / PGME / PGMEA 20/20/20 - Example 6 MEDA 3 BA 47 MTG 50 - Example 7 MEDA 20 BA 30 MTG 50 - Example 8 MEDA 10 BA 15 MTG 75 - Example 9 MEDA 10 BA 60 MTG 30 - Example 10 MEDA 10 PA 40 MTG 50 - Comparative Example 1 - - BA 50 MTG 50 - Comparative Example 2 MEDA 20 - - MTG 80 - Comparative Example 3 MEDA 20 BA 80 - - - Comparative Example 4 MEDA 10 BA 30 MTG 30 30 Comparative Example 5 MEDA 10 BA 10 MTG / PGME / PGMEA 30/10/10 30 Comparative Example 6 MEDA 27 BA 10 MTG 63 - Comparative Example 7 MEDA 13 BA 7 MTG 80 - Comparative Example 8 MEDA 3 BA 77 MTG 20 - MIPA: Monoisopropanolamine
MEDA: N-methyl diethanolamine
BA: benzyl alcohol
PA: phenethyl alcohol
MTG: triethylene glycol monomethyl ether
PGMA: Propylene glycol monomethyl ether
PGMEA: Propylene glycol monomethyl ether acetate

Test Example

1. Cleaning ability

In order to evaluate the cleaning ability of the red, green and blue inks used for offset printing and the black ink for BM, as shown in Fig. 1, a color filter having a long side of 130 mu m, a short side of 30 mu m, and a height of 20-30 mu m A pixel-shaped fine pattern was formed on a glass substrate to produce a test board for test evaluation similar to that of an intaglio offset printing intaglio. (PCF-R-001, Dongwoo Fine-Chem), green ink (PCF-G-001, Dongwoo Fine-Chem Co., Ltd.), blue ink (PCF-B-004, ) And black ink (PCF-BM-005, Dongwoo Fine-Chem Co., Ltd.) were coated so as to fill each fine pattern and then dried at 100 ° C for 3 minutes to prepare test specimens.

The fabricated specimens were immersed in a cleaning composition at room temperature for a certain period of time (10 seconds, 20 seconds), taken out, and rinsed with deionized distilled water for 20 seconds. After the rinse was completed, the specimen was completely dried using nitrogen.

Optical microscope photographs of the dried specimens were taken and evaluated for their cleaning ability based on the following criteria.

<Evaluation Criteria>

◎: ink is completely removed.

○: Excellent removal of ink.

?: A small amount of ink remained.

X: A large amount of ink remains.

division Cleaning ability Red ink Green ink Blue ink Black ink 10 seconds 20 seconds 10 seconds 20 seconds 10 seconds 20 seconds 10 seconds 20 seconds Example 1 ○ ◎ ○ ○ ◎ ◎ ◎ ◎ Example 2 ◎ ◎ ○ ○ ◎ ◎ ○ ◎ Example 3 ○ ◎ ◎ ◎ ○ ◎ ○ ◎ Example 4 ○ ◎ ◎ ◎ ○ ◎ ◎ ◎ Example 5 ◎ ◎ ○ ◎ ◎ ◎ ◎ ◎ Example 6 ○ ◎ ○ ○ ◎ ◎ ○ ◎ Example 7 ○ ○ ○ ○ ○ ◎ ◎ ◎ Example 8 ○ ◎ ○ ○ ○ ◎ ○ ○ Example 9 ○ ○ ○ ○ ○ ◎ ◎ ○ Example 10 ○ ◎ ○ ○ ○ ◎ ○ ◎ Comparative Example 1 × × × × × × × × Comparative Example 2 × × × × × △ × △ Comparative Example 3 × △ × △ △ △ △ ○ Comparative Example 4 × × × × × × × △ Comparative Example 5 × △ × × △ ○ × △ Comparative Example 6 × △ × △ × △ × △ Comparative Example 7 × × × × × × × △ Comparative Example 8 × △ × △ × △ △ ○

As shown in Table 2, the cleaning liquid compositions of Examples 1 to 10 containing the optimal amounts of the organic amine compound, the aromatic alcohol and the organic solvent according to the present invention had the red, green, and blue And black ink, and exhibited excellent cleaning performance. Particularly, when the aromatic alcohol is contained in an amount of 20 to 50% by weight, and when a mixed solvent of an ether compound and an acetate derivative thereof is used as an organic solvent, the effect is more preferable.

On the other hand, the cleaning liquid composition of Comparative Example 1, which did not contain an organic amine compound, had swelling and dissolution of the residual ink partially but was not removed from the intaglio in the rinsing process, and Comparative Examples 2 and 3, which did not contain aromatic alcohol and organic solvent, 3, the swelling and dissolution performance of the residual ink deteriorated, and residual foreign matter remained after the rinsing process. The aqueous cleaning composition compositions of Comparative Examples 4 and 5 containing water were difficult to remove residual ink within a short time. Further, Comparative Example 6 containing an organic amine compound in an excess amount, the cleaning liquid compositions of Comparative Examples 7 and 8, each containing a trace amount and an excessive amount of aromatic alcohol, had similar problems as those in Comparative Examples.

FIG. 2 shows optical microscope photographs of the green specimen (a) and the black specimen (b) washed with the cleaning composition of Example 3 of the present invention for 20 seconds. As a result, it was confirmed that when the cleaning liquid composition according to the present invention was used, the cleaning performance of the ink present in the specimen, particularly in the fine pattern, was excellent.

3 shows optical microscope photographs of the green specimen (a) and the black specimen (b) washed with the cleaning composition of Comparative Example 1 for 20 seconds. In this case, it was found that not only the inside of the fine pattern but also the ink existing outside was not removed.

2. Process yield, productivity

The prepared cleaning liquid composition was directly introduced and evaluated under the process conditions equivalent to the in-line image in the offset printing process. At this time, a blue ink and a black ink were typically selected and applied to the ink. The intaglio plate immediately after printing in an in-line form was cleaned by a spray method using a cleaning liquid composition at a pressure of 0.5 MPa, and the cleaning time was set to 5 seconds, 10 seconds, and 20 seconds. After rinsing, it was rinsed with deionized distilled water at the same pressure of 0.5 MPa for 20 seconds by spraying method, and then completely dried with nitrogen. The offset printing process was successively performed 20 times each using the dried intaglio.

The number of prints which were not determined to be defective after printing using a washed and dried intaglio plate was calculated as the process yield (%).

division Process yield (%) Blue ink Black ink 5 seconds 10 seconds 20 seconds 5 seconds 10 seconds 20 seconds Example 1 85 85 95 80 85 90 Example 2 75 80 95 75 90 95 Example 4 80 90 95 85 90 95 Example 5 85 95 95 85 95 95 Example 9 65 75 90 60 80 95 Comparative Example 2 - 10 25 - 5 15 Comparative Example 3 - 35 40 - 25 35 Comparative Example 4 10 25 55 5 35 65 Comparative Example 5 10 35 50 10 35 60 Comparative Example 7 25 40 60 15 25 40 Comparative Example 8 15 30 45 10 35 55

As shown in Table 3, the cleaning process was continuously introduced in the inline line during the intaglio offset printing process. As a result, the cleaning liquid composition of the Example was not only able to apply the continuous process, Reproducibility can be ensured and the process time and productivity can be improved by reducing the tack time.

On the other hand, the cleaning liquid compositions of Comparative Examples 2 and 3 did not have uniform removal rates for all the inks, and Comparative Examples 4 and 5 were difficult to introduce directly into the in-line process as an aqueous cleaning liquid other than organic ones, I did not. In addition, the cleaning liquid compositions of Comparative Examples 7 and 8 were also inferior in terms of process yield and productivity in comparison with the examples.

Claims (10)

3 to 15% by weight of an organic amine compound; 20 to 50% by weight of aromatic alcohol; And 35 to 70% by weight of an organic solvent,
The organic amine compound is a compound represented by the following formula (1)
Wherein the aromatic alcohol is a compound represented by the following formula (2)
Claims 1. An offset printing offset paddle cleaning composition comprising no water:
[Chemical Formula 1]

(Wherein R ₁ is a hydroxyalkyl group having 1-10 carbon atoms, and R ₂ and R ₃ are independently a hydrogen atom, an alkyl group having 1-10 carbon atoms or a hydroxyalkyl group)
(2)

(Wherein R ₄ is an alkyl group having 1-5 carbon atoms and R ₅ is a hydrogen atom).
delete delete delete The organic solvent according to claim 1, wherein the organic solvent is selected from the group consisting of an ether compound and an acetate derivative thereof, an alcohol compound, a pyrrolidone compound, an amide compound, an imidazolidinone compound, a lactone compound, a sulfoxide compound, Based compound, and a cresol-based compound.
The offset printing cleaning fluid composition of claim 5, wherein the organic solvent is a mixed solvent of an ether compound and an acetate derivative thereof.
[Claim 6] The process according to claim 5, wherein the ether compound is selected from the group consisting of ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, polyethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, Wherein the pressure-sensitive adhesive composition is an offset printing plate cleaning liquid composition comprising monobutyl ether, diethylene glycol monobutyl ether, triethylene glycol monobutyl ether, propylene glycol monomethyl ether or dipropylene glycol monomethyl ether.
delete A cleaning method comprising a step of dissolving and removing an ink remaining on an intaglio plate with an offset printing offset cleaning liquid composition according to any one of claims 1 and 5 to 7.
The cleaning method according to claim 9, which is carried out continuously on an in-line during an offset printing process.

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