Water Based Ink price  Water based white ink is composed of Water based acrylic resin, color paste, water and additives. Water based white ink has excellent performance, good fluidity, excellent water resistance, moderate drying speed, strong adhesion, good anti viscosity and convenient use. It is a new environmental protection green product.
Product ingredients: water based white ink is composed of Water based acrylic resin, color paste, water and additives.
Product features: Water based white ink is environmentally friendly, non-toxic, non combustible, non explosive, safe and tasteless, and meets ROHS environmental protection requirements. Meet the color requirements, good leveling, full color, no corrosion of printing plate, simple operation, good wear resistance and so on.
Product application: water based ink can be used for printing paper, carton, plastic film, paper bag, paper cup, woven bag, non-woven fabric and other products.
Equipment Requirements
1. Printing machinery: flexographic press, gravure press, etc
2. Screen requirements: number of anilox roll lines: 80-400 lines
Drying speed:
1. Ink printing speed: it shall be controlled between 20-120m / s
2. Dryness of printing machine: 10 ~ 40mm (adjust printing speed according to equipment and printing area)
Technical parameters: viscosity: 15-45 seconds / 1 4# cup of firewood, 25 鈩? fineness: 鈮?10 microns, pH value: 8.5 ~ 9.0
Applicable Printing Substrates
1. White cardboard, kraft cardboard, corrugated paper, coated paper, coated paper and other kinds of paper
2. LDPE, HPE, BOPP, PET, PVC, PO and other plastic films
3. PP, PE and other woven fabrics
4. Various non-woven fabrics
Product specification: 20kg / barrel, 50kg / barrel, 200kg / barrel
Storage method: the storage temperature is 5-35 鈩? sealed and the shelf life is 12 months.
Instructions for use: stir evenly to make the composition of Water based ink consistent. Prevent dust falling and crust drying. If the remaining ink contains impurities, filter it first and then use it with new ink. Take an appropriate amount of ink to test the viscosity before starting the machine. It is recommended to print the viscosity for 8-12 seconds / coating 4# cup. In this way, the adaptability of Water based white ink can be better guaranteed.
In order to improve the design and quality level of printed materials, printing plants often use spot color ink when printing trademarks, packaging and promotional materials, so as to ensure the color consistency of printed products and meet the requirements of customers. Next, we will discuss the causes of printing color difference of printing water based white ink with you.
01 Ink layer thickness and ink balance
The control of ink hue in the printing process is mainly realized by controlling the thickness of ink layer. Change in ink layer thickness by 0.1 渭 M will cause the color difference of 鈻?e = 1.5 ~ 4.5nbs. Obviously, this effect is very great. The ink reproduction of offset printing is closely related to the ink balance. Under the same amount of ink, large water and small water will affect the color depth. It is very important to correctly master the ink balance and pay special attention to the pH value of the wetting solution. The principle of water consumption is to use as little water supply as possible when it is not dirty.
02 Printing pressure
The printing pressure has a great influence on the degree of ink transfer from the printing plate to the paper. When the printing pressure is insufficient, the ink transfer is insufficient and not suitable for printing; When the printing pressure is too high, because the water based white ink on the printing plate spreads to the blank part outside the picture and text, the ink transfer rate is not only not improved, but also brings other disadvantages, which is also not suitable for printing. Only in the appropriate range of printing pressure can we print a print with thick ink layer, clear image, rich tone and good color reproducibility.
03 Printing speed
The increase of printing speed will shorten the contact time between printing surfaces, make the dot virtual, reduce the ink transfer rate and reduce the printing quality. In order to ensure the full contact of the printing surface and improve the printing quality, it is required to control the printing speed under a certain printing pressure in order to obtain a stable ink layer thickness.
04 Dry fading density difference
For the same paper, the density of the sample just printed is high, and after a period of time, the density value will decrease as the drying smoothness of the ink decreases. Due to the different density values of the ink layer before and after drying, the hue of the printed image is also different.
For newly printed prints, the water based white ink is still in the wet state, which has a difference from the dry state. This is because the newly printed ink layer has a certain leveling, so the surface reflection is mainly specular reflection, which looks bright and shiny. When the ink layer is dry, the surface reflection is mainly diffuse reflection, and the color is naturally dimmer than when it was just printed. Therefore, generally, the ink color of the printed sample sheet is slightly deeper than that of the standard sample sheet, but the actual depth should be controlled by data. During proofing, measure the density values of each color just printed. During printing, refer to these density values to print, so that the ink color of the two can be close to the same. The densitometer with polarization filter can eliminate the light generated by specular reflection on the surface of the ink layer. The measured wet color density is very close to the dry color density, and the measured density value is little affected by the dry and wet of the ink layer.Water Based Ink price