Fountain solution contains wetting agents that change the surface tension of the printing plate surface. PREMIER FOUNT with added wetting control ingredients also helps reduce ink volume while achieving sharp dots and vivid colors. Its pH buffering system provides consistent pH stability (4.5-5.5) and is suitable for all water types (problems with soft and hard water have been solved by a unique chemical formulation that allows both soft and hard water to reach an intermediate state, making it easier to control conductivity), and anti-corrosion ingredients help protect your machine. It is a highly concentrated product that needs to be diluted before use.
Product Categories:
Alcohol-free Fountain Solution
Suitable for all imported and domestic sheet-fed offset presses, PS plates, CTCP plates and CTP plates. Regardless of new Old, truly alcohol-free (zero alcohol) printing.
Advanced Sheet-fed Fountain Solution
Apply to all kink of continuous fountain system(Alcolor, Koebau, MANRolandmatic) and traditional fountain system, low alcohol fountain solution.
UV Fountain Solution
The product contains active ingredients of fountain solution is especially suitable for UV printing.
Feature:
1. Applicable to all PS CTP Plate (CTCP Plate requires UV fountain solution or Alcohol-free Fountain Solution);
2. Keep pH stable, stable wetting plate, buffering effect;
3. For alcohol wetting systems, no sedimentation, no clogging of pipes;
4. Contains water retention element, long shutdown and then turn on the machine without dirty;
5. The blank part of the printing plate to form a uniform water film to resist the blank graphics on the ink, to prevent dirty plate;
6. Suitable for a variety of water quality, the surface of the ink roller is not easy to build up calcium;
7. With strong printing tolerance, can maintain stable printing effect;
8.Reduce the water on the plate, to make the dot and graphic lines more clearer, and with a high concentration color when full-plate printing.
Working Principle:
The role of the fountain solution is mainly reflected in three aspects:
1. Form a water film in the blank part of the printing plate;
2. Replenish hydrophilic layers damaged during the printing process;
3. Reduce the surface temperature of the printing plate.
The role of alcohol in the fountain solution is also three-fold:
1. Reduce the surface tension of water, conducive to the spreading of water on the printing plate wetting;
2. Accelerate the spreading wetting speed of water, alcohol is a small molecule compound, fast diffusion speed;
3. Alcohol is volatile and can lower the temperature of the printing plate and condense the water in the air on the surface of the printing plate.
Without the concept of environmentally friendly printing, perhaps alcohol fountain solution will be used for a long time, but the current use of alcohol in the fountain solution is mainly isopropyl alcohol (Isopropanol, IPA), which is a low boiling point, high volatility of flammable organic solvents, harmful to humans, in addition to alcohol also has an impact on the gloss of the ink, the roller also has damage. More seriously, isopropyl alcohol emissions will also pollute the environment. Therefore, the use of isopropyl alcohol, on the environment, on the human body, on the printing equipment and product quality are unfavorable, in printing to reduce its frequency of use or completely without is an inevitable trend.
Model/Specification Parameters:
Dosage concentration ratio: 2-3%
Used for reducing alcohol printing, isopropyl alcohol (IPA) use ratio: 6%-8%
PH control stability is: 4.2-4.7
Packing: 20L/barrel
Density: 1.268%
Place of Origin: Shanghai
Production/operation Video:
Alcohol-free Fountain Solution
Sheet-fed Fountain Solution
Advanced Sheet-fed Fountain Solution
Web Offset Heatset Fountain Solution
Web Offset Coldset Fountain Solution
UV Fountain Solution
Shanghai Chenjie: Leading Fountain Solution Manufacturers
10+ Years of Manufacturing Experience
Shanghai Chenjie Printing Material Co., Ltd. is a printing materials technology research and development and sells all kind of printing materials company. Headquartered in Shanghai.
As the top manufacturer of fountain solution in China, In the past 10 years since its establishment, Has been committed to providing the industry with "green environmental protection, cost reduction and efficiency, long-term win-win" green printing material solutions.
Manufacturer Technology
Certifications
Exhibition
Strong R&D Team
As the top manufacturer of fountain solution in China, we have a strong R&D team.
Year 2008-2010: Shanghai chuangyan chemical company, only do processing production.
2010: The company establishes the alcohol free fountain solution research and development team, starts.
2012: GK-001，Just achieve reduce alcohol.
2014: Developed alcohol-free fountain solution gk-012, some printing machine models can achieve alcohol-free printing, but the water roll injury is relatively large.
2015: GK-013 To make up for the impact of water roll injury, and domestic machinery and Japan komori can achieve alcohol-free printing，But the German machine Heidelberg, Roland and other machines can not achieve alcohol-free printing, especially in summer.
2016: launched PrintBar - free alcohol fountain solution, Domestic machines and Japanese machines dosage 3%, German machines dosage 4% All of them are achieved alcohol-free printing. After a summer holiday in zhejiang manufacturers all normal printing.
2017: More than 40 dealers across the country.
Fountain Solution: The Ultimate FAQ Guide
What is a fountain solution? What is the role in offset printing?
Fountain solution is an indispensable chemical additive in the printing process of color printing machine, which forms a uniform water film in the blank part of the printing plate to resist the infiltration of the ink on the graphic to the blank part to achieve a water-ink balance. The role of fountain solution is mainly reflected in three aspects: first, the formation of water film in the blank part of the printing plate; second, to supplement the hydrophilic layer damaged in the printing process; third, to reduce the surface temperature of the printing plate.
What problems can occur when the PH value is too high and too low for the printing process?
The low PH value of the fountain solution stock solution is acidic, while the water is neutral. Therefore, the PH value of our water tank is best controlled at about 5.2.
Control PH value is equal to control the balance of water and ink.
When the PH is too low (should reduce the amount of additive): dirty plate, drop plate, deinking, drying too slow (sticky dirty), miscellaneous colors (color patches), the print is not real.
When the PH is too high (should increase the amount added): dirty plate, plate drop, plate corrosion, insufficient anti-friction, bottom dirt, ink roller ink pile.
What factors will affect the PH value of the fountain solution?
(A) the amount of fountain solution added As the original solution PH value of acidic is very low, if too much is added, the ph value will be too low, if too little is added, the ph value will be too high.
(B) the impact of water quality on the fountain solution, for example: the total hardness of water and bicarbonate composition PH value have a negative impact. In order to understand the impact of external factors, to analyze the water. Through the analysis in order to adjust the water bucket drug water according to water quality. If the hardness of tap water is too high, the hydrogen carbonate content is too high or contains other harmful substances, it is necessary to purify the water before use. The hydrogen carbonate content in the water at about 50 mg / l is more suitable for offset printing fountain plate.
(C) paper and fountain solution interaction Paper is not a homogeneous material, but by the composition of many layers. Raw materials used for paper is not neutral, usually non-coated paper is acidic, coated paper is alkaline. On those water delivery devices where the fountain solution is in direct contact with the paper (e.g., Daguerreotype water delivery devices), it is used to create direct interactions that can have an effect on the fountain solution pH. On water delivery devices that are not in contact, this effect is not present or is only slight. Since the amount of plate moisture transferred to the paper through the rubber blanket is not too small, there is a rather pronounced interaction depending on the quality of the paper. When the paper fibers absorb water, they begin to swell. If the absorption of too much water, the result on the one hand, resulting in paper size changes, on the other hand, water can play a role in the role of a closed layer, hindering the rapid penetration of printing ink.
(D) the interrelationship between printing inks and fountain solution Some printing inks also contain substances that affect the PH value. This is also like the above-mentioned paper situation, and fountain solution contact and no contact between the water delivery device there is a similar relationship. Offset printing ink is based on mineral oil, it is not comparable with the fountain solution. However, it is this difference that allows offset printing to exist. I am afraid it is not appropriate to say that water and ink are mutually exclusive. In fact, offset printing ink must absorb a certain amount of fountain solution. Without this ability, Dahlgren water delivery device (through the first inking roller wetting) is unimaginable application. The important thing is that the water should be absorbed as quickly as possible, and this can form a stable water-in-oil emulsion.
What is electrical conductivity? What will be affected by too high or too low?
For the same fountain solution, prepared with water from different places, even with the same concentration of fountain solution, their conductivity is not the same, because it is related to the degree of softness of the water (the amount of Ca2+, Mg2+ in the water). Conductivity is large, indicating that the solution in the ions, some ions on the printing is affected, such as Ca2 +, Mg2 + in the fountain solution concentration is too high will lead to ink emulsification, hinder the drying of the print, therefore, the need to soften the water, and then fountain solution preparation when the tank conductivity is too high means that the water in the tank has been contaminated, not suitable for printing, the need to clean the tank, and replace the fountain solution. This is why we require manufacturers to diligently wash the water tank.
What is the surface tension of the fountain solution? (dosage ratio)
The surface tension of the fountain solution is about 0.35~0.45N/m=(35-45)×10N/ cm
The surface tension of ink is generally 0. 03~0.036N/m.
The surface tension of the fountain solution is slightly greater than the surface tension of the ink
Fountain solution surface tension
1. Surface tension has nothing to do with PH value, conductivity, and fountain solution active agent.
2. Ordinary alcohol fountain solution and the market alcohol-free fountain solution active agent chemical molecular chain is relatively short, so adding more fountain solution original solution is easy to break, which means that adding more is easy to have problems.
3. Print it alcohol-free fountain solution: the active agent chemical chain is longer, so add more will not be less than 0.35N/m, of course, add less will be more than 0.45N/m.
The effect of the size of the surface tension of the fountain solution on the ink
The blank part of the offset printing plate is attached to the fountain solution, the graphic part is attached to the ink, if the surface tension of the ink is less than the surface tension of the fountain solution under the action of diffusion pressure, the ink to the direction of the fountain solution infiltration, the formation of the print network expansion, in the blank part of the dirty. Ink emulsification and other phenomena.
Conversely, if the surface tension of the fountain solution is less than the surface tension of the ink, under the action of diffusion pressure, the fountain solution to the direction of the ink infiltration, so that the print network disappears.
Only when the surface tension of the fountain solution and the ink surface tension is equal, the diffusion pressure at the interface is zero, the fountain solution and ink at the interface to maintain a relative balance and do not infiltrate each other, the printing effect is more ideal Generally speaking, the surface tension of offset ink is about 30 to 36 × 10-5N/cm, and the water-ink balance of offset printing is achieved under the dynamic, so the surface tension of the fountain solution should be slightly higher so The concentration of surfactant in the fountain solution should be the concentration corresponding to the fountain solution surface tension of 35 to 42×10-5N/cm, and if this concentration is the critical concentration of surfactant gel group, it is more ideal to get the fountain solution with stable surface tension.
But the printbar alcohol-free fountain solution is technically upgraded on the active agent, plus more alcohol-free fountain solution surface tension will not be lower than 0.35N/m, plus less will be higher than 0.45N/m.
PH management requirements for automatic fountain solution addition systems for printing presses
At present, most of the printing presses are controlling the PH value of the fountain solution to control the amount of fountain solution added, which requires the concentration of the fountain solution to change linearly with the PH value, i.e., the PH value should change when the concentration of the fountain solution changes slightly, while the PH value may not change when the concentration of the "buffer type" fountain solution changes slightly. However, the performance of the alcohol-free fountain solution is stable, and it is suitable for different brands of printing presses.
In order to reduce the occurrence of printing problems, the fountain solution should be manually configured and added to the water tank, and equipped with the corresponding measuring cup to control the exact amount to be added.
How to use alcohol-free fountain solution?
In the case of normal machine data, there is no need to deliberately adjust the machine. Mix 3%-4% of the original solution with water can be used, domestic, Japanese machines about 3% proportion, German machines about 4% proportion, the water tank temperature to 8 ℃ ~ 10 ℃, the PH value to 5.2-5.8 between the conductivity of 800Ω ~ 1200Ω can be, without adjusting the tank temperature, the use of conditions consistent with the alcohol printing. During the period of diligent washing of the water tank to keep the tank clean. It is best to install the water tank recycling filter cotton to prevent printing ink, paper dust into the water tank will change the conductivity, the machine can be printed smoothly, the value is adjusted according to the actual operating conditions; appropriate adjustment of the water roller gap and speed.
What is the amount of alcohol-free fountain solution added?
Adding amount (refers to the ratio with water): 3%~4%, which according to the actual research and development and the market use of the amount added for domestic and Japanese printing machines added 3% or so; German printing machines added 4% or so. As the PH value of the original solution is acidic 4.5, if too much is added, the ph value will be too low, and if too little is added, the ph value will be too high.
What is the pH value of alcohol-free fountain solution and what does the pH value affect?
PH value: printbar free alcohol wetting liquid original PH value is 4.5, according to 3% ~ 4% of the added proportion of PH value please control between 5.2 ~ 5.8. The first if the PH value is too high. Because of weak acidity, hydrophilic gel layer is not easy to generate, fountain solution surface tension will drop sharply, the ink water content will become high, resulting in ink emulsification and serious network expansion and other problems; second if the PH value is too low, or affect the ink itself oxidation drying speed, and intensify the infringement of the printing plate, corrosion of the blank part of the sand mesh and graphics part of the photographic material, so that the printing plate to reduce the printing resistance, and may destroy the alkaline paper surface coating.
What is the conductivity of alcohol-free fountain solution in the tank mixture?
Printbar alcohol-free fountain solution original conductivity of 4500 μs/cm, generally we print the basic basic with pure water conductivity between 1 ~ 10 μs/cm or natural water conductivity between 125 ~ 1250 μs/cm, alcohol-free fountain solution conductivity design principle is to add the proportion of the added, so as to avoid alcohol fountain solution added to the water tank dilution, PH value in 4.5- 5.5, the conductivity should vary between 800-1400us/cm in equal proportions, in the printing needs of the conductivity should not exceed 1700us/cm, where the magnesium ions affect the PH value.
