The hottest digital ink jet printing and the devel

2022-08-01
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The development of digital ink-jet printing and printing release date: Source: China's paper industry in the past 20 years, the printing industry has undergone considerable changes, most notably the introduction of new digital printing technologies and complex processes suitable for a series of different packaging and printing purposes. However, when the printing process becomes more mature, people tend to forget that the printing ink market has to change to adapt to those new automatic printing technologies. Today, China paper takes you into digital ink-jet printing, and introduces in detail the activity characteristics of ABS, which belongs to non-Newtonian fluid

in many cases, with the development of new digital printing technology, printing ink is no longer regarded as a single commodity, but an integral part of the printing process. Today, whether in the printing of brochures or large outdoor posters, or in the printing of simple bar codes or complex packaging trademarks, a considerable amount of time and resources are being invested in the development of printing inks to optimize the operation of new printing processes and provide the best terminal effect

The cantilever hanging pendulum method

some time ago was a turbulent period for the Indian ink market, and the pressure of price decline and environmental protection issues have formed a heavy burden on manufacturers. From the perspective of transmission, printing methods such as silk, lithography, flexo printing and gravure printing do not depend on the use of a special ink to operate their printing machines. So in the past, I decided what kind of printing machine to buy. Therefore, in the past, the decision to buy a printing press was mainly influenced by the price, not always by the quality

however, digital technology has started a new trend, because technologies such as digital inkjet have a great dependence on the type of ink used. This feature of the printing process means that printer manufacturers must now work closely with ink manufacturers to develop an ink that can optimize the performance of printing technology and substrate materials and specifically adapt to the individual needs of end users

with the accelerated development of the printing ink market, there is a large series of printing ink products, which can be suitable for each printing machine and give the best results for specific applications. In the digital ink-jet printing market, there are four types of inks widely used, namely water-based, oil-based, solvent and UV curing inks

the value of these inks lies in their flexibility to be used in an increasing number of substrate materials and their application in high-performance printing machines. Each printing ink type is different and has its own series of unique properties. It is this point that distinguishes various printing inks and shows that printing inks are not just a printing tool

for example, oil-based ink is a pigment system based on basically non drying, low volatile oil substances. They are only suitable for limited base materials, i.e. paper and plate, and can be ideal for packaging and printing. This kind of ink dries rapidly on porous permeable materials due to absorption, but due to the characteristics of oil, it will not dry on non porous permeable or semi porous permeable sheet based materials. Therefore, the oil-based printing ink is mainly used for industrial printing purposes, such as bar code identification printing of outsourcing boxes, and has an excellent non drying time in the printing nozzle, thus greatly reducing the maintenance needs of the nozzle. For example, Merlin alpha dot series printer equipped with Xaar print head can print extremely clear and accurate color or black-and-white quality effects on different sheet based materials from wood to gypsum board with oil-based ink

in wide width printing applications such as outdoor billboards and banners, the use of oil-based printing ink is limited due to the lack of surface smooth sheet based materials that can quickly absorb ink. Although using cheap absorbent paper to print traditional posters can also get good results

in comparison, the price of soluble printing ink is low. It can be directly printed on non coating substrate materials such as vinyl banners, self-adhesive vinyl, fabrics and paper. Therefore, it is widely used in picture printing. The use of high-quality pigments can provide better outdoor UV stability without the use of film. At the same time, the volatility of this printing ink can also make the dried ink film lighter

dgi's wistajet digital inkjet printer uses solvent based ink, and has achieved high picture quality in printing large banners specially used outdoors

this kind of printing ink has made great efforts in the formulation development, achieving a balance between the drying time characteristics of the sheet based materials and the non drying time in the spray printing. Routine maintenance is also required for the print head. V cover the print head when it is not in use. In addition, when non porous permeable sheet based materials are used, preheating may be required to speed up the drying speed and prevent the ink from forming mottle in the high-density area. All these show that solution based inks can indeed provide high-quality images and are still a popular choice for many digital printers

however, solvent inking also brings some environmental problems. Because of their characteristics, they have high levels of volatile organic compounds, which will have an adverse impact on the environment. Therefore, the use, storage and waste of solution based inks need to be controlled, and they must be used under good ventilation conditions

compared with solution based ink, UV curing ink is increasingly becoming a popular substitute. It is rapidly becoming the main ink for the new generation of platform digital printing machines, which are designed to print on a variety of flexible and hard sheet based materials. Bright, tough and durable effects can also be obtained on non coating substrates, so no film is required for outdoor use. The combination of UV curing ink and digital platform printing machine allows us to print outdoor media, such as billboards, billboards and banners, more reliably, efficiently and finally more quickly. Therefore, this combination technology has been greatly affected and increasingly applied, which has stimulated the printing industry. At present, the main electronic testing machines of the factory include: LCD electronic tensile testing machine Microcomputer controlled electronic universal experimental machine

for example, Inca has decided to select an UV curing inking system for its Inca Eagle 44 platform digital printer. This machine has been designed to print promotional materials, etc. Because UV inkjet is mainly composed of 100% acrylic based dense formula, Eagle printer can print on a large number of materials, including cardboard, wood, and plastics such as PVC

as the first digital printer that can print on cylindrical objects, canpet printomat 400 also applies UV curing ink and the piezoelectric on-demand inkjet technology of Xaar company in the UK, making direct printing on objects such as beverage cans a reality. The function of short version flexible and variable printing makes this machine more adaptable and personalized. It is very attractive to those packers who seek market competitive advantages and try to print directly on their products

in addition, UV curable inks do not contain volatile organic compounds, and can remain in a liquid state before being solidified by UV light. This enables the nozzle to have a long non drying time and low maintenance needs. When the printing ink is exposed to ultraviolet light, it can "dry" on the base material almost instantly. However, UV curing inks will be affected by surface "oxygen inhibition", resulting in post printing stickiness. Higher ink film weight will also lead to incomplete curing, which will lead to adhesion failure. These two disadvantages can be reduced or eliminated by using light source through fine formulation and combining accurate spectrum and light energy output characteristics

although the violet curing ink is not restricted by the emission regulations of volatile organic compounds, its curing process is related to the disappearance of ozone, so there are still environmental problems. In addition, because inkjet printing requires low viscosity inks, and the monomer composition characteristics of UV curing inks that meet this need, people should be extra careful when handling them, because many formulas have the risk of causing skin allergic reactions

The latest development of the industrial ink market is the development of water-based ink. It has the characteristics of low cost and no harm to the environment. Whether it is dye based formula or pigment formula, it has always had an advantage in the desktop printing market. This ink is suitable for printing on porous permeable substrate materials, but in order to obtain the best effect and outdoor retention, it requires the use of expensive special substrate materials and film covering. Due to the special water, the water-based ink needs a relatively long drying time on the substrate, but there is a trend of rapid drying in the nozzle of the printing head, so the nozzle needs to be maintained frequently. When the printing machine is not in use, the nozzle needs to be covered

looking forward to the future, cationic systems and water-based UV curing systems will be widely used in food packaging. The latter will provide lower ink film weight, higher polymer composition and low stimulation oligomer specific gravity, so as to improve health and safety characteristics. These inks will also be more suitable for the application on porous permeable and semi porous permeable substrates. The tensile testing machine is a necessary testing machine for scientific research, machinery and other industries. The curing effect will be better and the odor will be less

obviously, various demand scales are changing the printing ink market. Printing ink manufacturers are making greater efforts to develop more advanced and safer products. At the same time, they are constantly improving product quality and performance to meet our needs. The digital printing industry is constantly advancing, and the constantly changing digital equipment increasingly needs new and strengthened printing ink media. The development of printing equipment and ink is interdependent. With the progress of technology, we can be sure that there will be better and more interesting new products in the near future

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