Feature 1.Non viscous: almost all substances are not bonded with PTFE coating. Very thin films also show good non-adhesion properties. 2.Heat resistance: PTFE coating has excellent heat and low temperature resistance characteristics. Short time can withstand high temperature to 300℃, generally between 240℃~260℃ can be used continuously, with significant thermal stability, it can work at freezing temperature without embrittlement, at high temperature does not melt. 3. Sliding: PTFE coating has a low coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.05 and 0.15. 4. Moisture resistance: PTFE coating surface does not touch water and oil, production operation is not easy to touch the solution, such as sticking a small amount of dirt, simple wipe can be removed. Short downtime, save man-hours and improve work efficiency. 5. Wear resistance: under high load, with excellent wear resistance. Under certain load, it has the dual advantages of wear resistance and non-adhesion. Application Area Ptfe can be extrusion or extrusion processing molding; Used in, high temperature wire, can also be first made into film and then cut into the shaft packed PTFE belt, used for the production of high frequency cable, directly made of water dispersion liquid, can be used for coating, impregnation or made into fiber. Ptfe in atomic energy, defence, aerospace, electronics, electrical, chemical, machinery, instruments, meters, construction, textile, metal surface treatment, pharmaceutical, medical, food, metallurgical smelting and other industries widely used for high and low temperature resistance, corrosion resistant materials, insulation materials, anti-sticking coating, etc., make it become the irreplaceable products.

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.