If you've ever used a non-stick pan, you know how good it is.You don't need any cooking skills to get a spoonful of rice without the rice crust and a full fried egg for breakfast. It also cooks healthier with less oil and less paste. However, in recent years, "non-stick pans are toxic" claims abound; Also many people see the bottom of the non-stick pan is scratched, showing mottled lines, always worry about coating toxic. Are non-stick pans really toxic? Non-stick pans are controversial because of their coating. But the reason why can "not stick", with "Teflon" on the surface of the uneven gap filled, forming a really smooth "film". Teflon is a polymer made of tetrafluoroethylene as a monomer polymerization, with good heat resistance, cold resistance, acid resistance, alkaline resistance, strong stability, almost not by any material erosion, so it is also known as the "plastic king". Because Teflon carries labels such as "polymer" and "plastic", it is easy to think of toxic and carcinogenic, which is also an important reason for the spread of the "non-stick frying pan carcinogenic". In fact, teflon itself isn't toxic. But in the production of teflon, some bad manufacturers use a processing aid called PFOA (ammonium perfluorooctanoate), which has been linked to thyroid diseases, high cholesterol, ulcerative colitis and other diseases, and has a certain cancer risk. But PFOA has been banned in most countries, including China. Therefore, we buy in the formal mall, in line with the national standard Teflon coating non-stick pan, in fact, is very safe. In addition, the melting point of Teflon is about 327℃, so it can withstand a high temperature of 300℃ in a short time, while it can be used for a long time below 260℃. Generally, the temperature in cooking cannot reach this level. In life, the temperature of the oil used for stir-frying and refrying is about 70 percent hot, and its temperature value is 190℃ - 240℃; After cooking pickled cabbage fish and boiled vegetables, the oil temperature is nine to ten percent hot, and the temperature is between 250℃ and 300℃. It can be seen that the safety index of Teflon coated non-stick pan is still very high under normal cooking temperature. At present, most of the non-stick pan, with a long time will inevitably appear coating off or be scratched phenomenon, at this time can also be used? Some experts said that teflon properties are very stable under normal use, and even if you ingest a small amount of fallen coating particles, they will generally be excreted by the human body, so it does not seriously affect your health. But when the coating falls off, it does pose a health risk: on the one hand, the food tends to stick and become burnt, which is not only difficult to clean, but also prone to produce more harmful substances. Under normal circumstances, the normal service life of non-stick pan is 1-2 years, but when its non-stickiness disappears, even if the coating is not damaged, it should be replaced in time...

After the ink is transferred to the printing surface by the blanket at a certain printing speed and under a certain printing pressure, the fixation and drying speed of the ink film, as well as the color, gloss, fastness and resistance after film formation, etc. ensure the printing effect, which are collectively referred to as the printing quality suitability of the ink. It mainly includes color, permeability, dryness, gloss, friction resistance and so on. Sinograce Chemical is a supplier of ink resin, water based ink resin quality, high quality, price concessions, welcome to consult! Email address is sales@sinogracechem.com.

Ink in the transfer, distribution (from the ink hopper ink, after complex transfer and distribution, until the smooth transfer to the surface of the printing sheet to form a blot), the flow phenomenon is called the transfer of ink, it is the main body of ink operation adaptability.  The transfer of ink can be understood from two aspects: On the one hand, ink transfer, uniform ink and ink roller transfer; On the other hand is the ink between the plate and the blanket, the blanket and the transfer between the sheet. On the other hand is the ink between the plate and the blanket, the blanket and the transfer between the sheet. The former is mainly affected by inking and transmission, while the latter is also affected by printing conditions (such as printing type, printing speed, printing pressure, etc.) and blanket, paper.  That is, the transfer of ink is displayed in the whole transfer, distribution and ink layer separation (or splitting) process, which is of great significance to offset printing. The quality of ink transfer, mainly depends on the ink drawing and viscosity, but also its wettability, viscosity, yield value, thixotropy, surface tension and so on.

After ink roller output, the flow phenomenon is called ink transfer. In the process of printing, the thickness and uniformity of the ink layer on the surface of the image and text of the plate are achieved by a series of ink rollers. Therefore, the quality of ink transfer is directly related to the ink distribution and distribution, and the smooth transfer of ink in the whole process. Generally speaking, the process from the ink hopper to the ink plate depends on the viscosity, drawing and thixotropy of the ink itself. (1)Under normal circumstances, when the drawing property and viscosity are appropriate, the ink shows better transmission, and the ink volume distribution is also better; (2)When the drawing property and viscosity are too large, the transitivity becomes bad, and the ink distribution becomes worse; (3)When the ink is too long, it is easy to cause the phenomenon of flying ink. Our waterborne coating products are widely used in waterborne environmental protection coatings, waterproof coatings, Marine coatings and so on. Our coating industry products, most can be used as paint, ink and other solvents, such as propylene glycol methyl ether, diethylene glycol butyl ether, diethylene glycol diethyl ether and so on, propylene glycol butyl ether is one of the most effective film forming additives in many waterborne coatings. Sinograce Chemical produces all kinds of ink raw materials, welcome to consult, please send email sales@sinogracechem.com, contact us.