Coating process: the basic process of water-based coating production process

The key points are as follows: (1) the basic production process of water-based paint: the production process of water-based paint is the process of putting raw materials of various components into a certain order and dispersing evenly The production process of general latex paint includes three parts: ① Preparation of slurry: first, water, dispersant, defoamer, preservative and other liquid materials are put into a dispersing tank, stirring evenly In the mixing state, the pigments and physical pigments are put in order and accelerated for 20~40 minutes Secondly, the water-based coatings are formulated: put the emulsion into the paint tank, add thickener, pH regulator, antifreeze, film forming aid Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Home of coatings: (1) basic production process of water-based coatings: the production process of water-based coatings is the process of putting raw materials of various components into a certain order and dispersing evenly The production process of general latex paint includes three parts: ① Preparation of slurry: firstly, put liquid materials such as water, dispersant, defoamer and preservative into the dispersion tank, mix them evenly, put coloring pigments and physical pigments in turn under the stirring state, and accelerate the dispersion for 20-40 minutes; ② Preparation of waterborne coatings: put the emulsion into the paint tank, add thickening agent, pH regulator, antifreeze agent, film builder, defoamer and other auxiliaries, stir for about 15 minutes, and complete the uniformity, then detect the material Coating filtration and product packaging: in the production process of latex paint, because a small part of the pigment (filler) has not been dispersed, or because of breaking emulsification into particles, or there are impurities in the coating, so the coating at this time needs to be filtered to remove the coarse particles and impurities to obtain a good quality product According to the different requirements of the product, different specifications of screen and different containers can be selected for packaging Do well in measurement, so as to get the final product (2) Key points in the preparation of waterborne coatings: ① pigments and ultra-fine fillers with good dispersibility shall be selected as far as possible, so as to cancel grinding operation, simplify production process and improve production efficiency on the premise of stable improvement of product quality; ② In the early stage of dispersion, a proper amount of HEC can be put in advance, which is not only helpful for dispersion, but also can prevent or reduce the phenomenon of slurry sticking to the wall and improve the dispersion effect; ③ Before adding liquid thickeners, it is necessary to use 3~5 times water to dilute, then add slowly when fully stirred, and prevent the local thickeners from being too high The thickener can be placed in the slurry after mixing the slurry into the slurry to avoid the above problems Half of the defoamer is added to the slurry, and the other half is added to the paint preparation process, so that the defoaming effect is better; in the paint mixing process, the mixing speed should be controlled at 200 ~ 400R / min to prevent the introduction of a large number of bubbles in the production process, which will affect the quality of the paint Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,