What do you usually do with screen printing ink?
Oil resistance, oil resistance refers to the oil, mechanical oil and other adaptability, which is different from solvent resistance.
Test of resistance to hot water and hot water, usually on the printing surface per unit area, add a certain amount of warm water for a certain period of time to stir, to test the extent of water pollution. In particular, to observe the ink dissolved in water pigment, to determine whether the ink for food utensils and toys such as printing suitable or not.
Heat resistance and cold resistance, as some printed matter should be used at different temperatures. Therefore, some printed matter should be processed at high temperature after printing, and some printed matter should be processed at low temperature after printing. Through the test of heat resistance and cold resistance, the change degree of the ink at different temperature was tested.
Because screen printing is widely used, the requirements of screen printing ink are more stringent. Therefore, in order to meet the different requirements of printing products for printing ink, the following aspects should be tested for screen printing ink.Adhesion test, determine the bonding degree of ink on different materials.Resistance to flexibility, test the adhesion of ink and base material by flexible test.Rub resistance, rub resistance, mainly on cloth, paper, film and other materials of the printing surface of the strong test, to test the ink on the printing material bonding degree and firmness.Abrasion resistance cotton printing surface after sunlight exposure, cotton for a certain number of friction, check the degree of pollution of cotton cloth.The weather is Naihouxingnai containing light resistance. Weather resistance is usually placed outside the printed matter, are exposed to the weather, rain and other tests to test the print color, fade pigment printing ink coating degree and the degree of discoloration decomposition, etc..
