Coating knowledge: details notice: three characteristics of coating water slurry printing

The key points are as follows: 1 The quality of binder is the key to the preparation of paint water slurry When preparing dark color slurry, the high quality binder with high solid content should be selected, and then the hand feeling modulator that can increase the fastness can be used to ensure the color fastness (rubbing fastness, soaping fastness, scrubbing fastness, etc.) The polymer particle diameter of high quality adhesive should be controlled at 0.2um-1um, and the particle size should be uniform In summer, due to the dry weather and low humidity, the water slurry is easy to be blocked In order to reduce the drying speed of the water slurry and prevent the printing slurry from drying prematurely, a proper amount of hygroscopic agent can be added to the printing slurry to keep the surface of the water slurry wet without skinning, 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 Coating home news: the process of coating water slurry printing should pay attention to: 1 The key to preparing coating water slurry with water slurry is the quality of binder When preparing dark color slurry, high-quality binder with high solid content should be selected, and then hand feeling conditioner that can increase the fastness can be used to ensure the color fastness (rubbing fastness, soaping fastness, scrubbing fastness, etc.) The polymer particle diameter of high quality adhesive should be controlled at 0.2um-1um, and the particle size should be uniform Due to the dry weather and low humidity in summer, the water slurry is easy to be blocked In order to reduce the drying speed of the water slurry and prevent the printing slurry from drying too early, a proper amount of hygroscopic agent can be added to the printing slurry to keep the surface of the water slurry wet without peeling The general amount is 3% The excessive amount of hygroscopic agent will affect the sound fastness In the process of printing operation, this kind of situation is often encountered At the beginning of printing, the printing pulp has good fluidity, but the printing pulp thickens after normal operation time, especially in the size with fixing agent This situation occurs because the printing pattern area is small and the size stays in the net for a long time With the evaporation of water and the increase of viscosity, the problem can be solved by adding 5% ammonia water into the printing pulp 2 When printing water slurry on chemical fiber fabric for chemical fiber fabric printing, due to the weak coloration of the adhesive on the chemical fiber fabric, if you want to obtain a satisfactory fastness, you need to increase the coloration of the adhesive on the chemical fiber fabric The actual method is to add a color fixing agent, but because of the cross-linking effect of the color fixing agent and the adhesive, the product feel will become hard, so it is very important to select the color fixing agent If the reaction of fixing agent is too slow, it will not have great effect If the reaction is too fast, it will damage the fluidity of the size, make the printing pulp cross-linking too early, and produce blocking phenomenon The fixing agent with good fixing color and high quality stability of the size should be selected 3 The problems of depth reduction and solidification often occur in the brightness of color in the water slurry printing The decrease of brightness depth is due to the opposite effect of water slurry on the pigment If you want to improve it, add 10% - 15% white fire oil and appropriate emulsifier in the preparation of water slurry, so as to ensure the bright color In the prepared standby water slurry, when adding the pigment, there is a normal reaction, that is, a small amount of viscosity is reduced However, some color pigments, especially black, appear the opposite situation, forming slurry solidification, viscosity rise to normal use The coagulability of the size can be improved by adding appropriate amount of ammonium sulfate into the solidified size [focus on WeChat official account "paint net"; pay attention to surprises, scan code to see if your husband is selling paint.. 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