Ink is an important material used for printing packaging materials. It expresses patterns and text on the substrate through printing. The ink includes main components and auxiliary components, which are evenly mixed and rolled repeatedly to form a viscous colloidal fluid.     Ink whitening   For whitening caused by moisture, the author advocates adjusting the solvent . When the surrounding humidity is high, use some alcohol solvents with low water absorption to replace ethanol. Of course, using air conditioning, refrigeration and dehumidification to improve the workshop environment is also a way, but the author does not advocate it. In terms of cost, it is really wasteful. Analysis of the causes of ink “whitening” phenomenon   “Whitening” of the ink mainly means that the solvent contains moisture and the printed film loses its luster. In severe cases, the hue will also change. In fact, from the perspective of material supply, the probability of the solvent containing moisture is not very high. It does not contain moisture at all. It’s impossible. The purity of all solvents always has a certain percentage. The solvents used in the printing process always have a tolerance for moisture, so don’t worry about it.   The occurrence of ink whitening is often related to the ink absorbing a large amount of moisture in the environment during use. The author once saw a company printing with new ink during the rainy season . The hue of the printed product did not change within the first 2 hours, but after 2 hours Finally, due to the gradual delamination of ink, the printed product loses its luster and needs to be replaced with new ink to return to normal. Gravure printing has some special requirements for the environment when using alcohol-soluble inks. For example, the humidity of the surrounding environment cannot be too high, otherwise ethanol will absorb moisture from the environment. Therefore, a constant temperature and humidity device must be installed in the workshop to control the temperature at around 25°C. The humidity should not exceed 70% to avoid ink whitening.   During the printing process, we often encounter the phenomenon of “whitening” of ink, which worries many printing workers. What is the phenomenon of ink whitening and how to solve this phenomenon of ink whitening?   Direction of development   Now ink manufacturers are signaling that production and processing costs will be further increased due to sharp increases in raw material costs. This is largely due to global shortages of a range of chemicals that are key ingredients in the production of inks. Up to now, the rising prices of crude oil and petrochemical derivatives are the main reasons for the rise in ink prices. But even if oil prices fall back, because the ink industry has been hit by a shortage of chemical raw materials, especially raw materials such as nitrocellulose, acrylic acid, acetic acid and titanium dioxide, ink prices will still only rise rather than fall.   All inks will be under the pressure of high pigment prices caused by rising prices of petroleum derivatives. Heatset inks, coldset inks and traditional sheet-fed inks will be affected by significant price increases in mineral and vegetable oils. However, packaging and printing inks such as solvent-based inks, water-based inks, UV curable inks and varnishes may have to bear the pressure of rising raw material prices. ——(China ink market development trend in 2014)   With the implementation of the tobacco advertising ban, cigarette boxes have become an important channel for cigarette manufacturers to communicate with smokers. Cigarette manufacturers are paying more and more attention to the design of cigarette packaging, the selection of health warning graphics and the protection of cigarette brand intellectual property rights. These factors have increased the market demand for packaging inks. At the same time, soaring prices of raw materials such as crude oil and natural gas and shortages of certain key ingredients such as acrylic acid and pigments have also led to rising ink prices.   EB ink is favored by the majority of users for its advantages of no volatile solvents, no VOC , little harm to the health of operators, low odor, no need for photoinitiators, direct online drying, and online operation. Compared with UV ink, EB ink does not require a photoinitiator, has faster curing speed, more complete curing, and smaller odor, which further increases the development space of EB ink. Therefore, EB ink has become more popular with the raw materials and raw materials of EB ink. The price reduction of supporting equipment and the further maturity of design formulas will make it a practical and economical ink that can be vigorously promoted. EB inks are now a growing trend in flexible packaging printing. The superior performance and high production efficiency of EB ink provide it with a broader market. It is believed that the application scope of EB ink will be further expanded and it will become an important variety among new environmentally friendly inks in the future.   In 2006, the growth rate of the global passive component market increased to 18% due to increasing downstream demand. From 2007 to 2009, due to the higher base period, the growth rate will return to the previous level, but it will remain above 10%. Benefiting from the steady growth of the passive component market, the market demand for ink materials is expected to continue to increase.