American Tuss furniture paint trick to solve the coloring service problem

China Paint Network
News: color adjustment service is a common skill in the coating process, but to do a good job of coloring service is not overnight, in order to bring high-quality products and services to the market line, American Coats furniture paint throughout the country set up a coloring service center, now the national color adjustment service center is gradually established and improved, today's small editor to bring you the common problems in the color adjustment process, hope to help you, if there are more problems do not understand, welcome to consult the United States paint furniture operation center.
one: the color formula has not changed, the color difference is very large
reason:
1) the difference between the batch of color paste (coloring force control range 100±5%)
2)
coatings
raw material batch Sub-differences (different masking force, antichromic force, gloss)
3) differences in the compatibness of the paste and coatings (different compatibness, different colors and colors presented)
the solution:
try to use the same manufacturer the same Batch of color paste
coal raw materials as little as possible to replace
change the color paste first do the color paste and paint compatible test


Cause:
1) The difference in surface tension between the color paste and the coating is too great
the coating is generally used as an anion-type or ion-type polyelectrome dispersant, while the color slurry is generally used with non-ion or with part of the anion dispersant, Make white pigments and colored pigment surface adsorption of different wetting dispersants, with different surface stress.
2) Color paste and paint compatibility is not good
emulsion outside the emulsion particles and pigment, filler particles outside the surfactant compatibility is not good, resulting in pigment flocculation
3) color paste and paint hydrothermic oil balance value does not match
The surface pressure is small, it is easier to float to the surface
4) thickener effect
some fake plastic strong joint thickener and HLB value of the larger surfactant has a great affinity, so that it is dissociated on the pigment surface, resulting in pigment accumulation and flocculation, resulting in floating flowering.
Solution:
choose suitable wetting dispersant, adjust the surface properties of particles, adjust its motion balance, is the best way to control floating color
If it is floating is the color of the color paste, indicating that the HLB value of the coating is larger, more hydro-friendly, the basic paint preparation process to add a low-polar additive of oil-friendly to reduce the HLB value of the paint, if the floating color is white, indicating that the HLB value of the paint is relatively small, more pro-oil, the basic paint preparation process to add hydro-friendly additives, increase the hydromassage of the coating.
Some systems can resist film floating color, add anion-type wetting dispersant in the finished paint, adsorption on the surface of carbon black or organic purple pigment particles, improve the surface properties of pigment particles, enhance polarity, these non-polar weak polar particles have the same polarity as white particles, and polymers have the same degree of adsorption flocculation, so in film drying ability is equivalent to control floating color. Choose a surfactant that strongly reduces surface pressure, commonly used silicone surfactant, so that it migrates to the surface during film drying process to form a single molecular film, balance the surface pressure and control flowering;
Add additives that can produce a tactilising structure, such as
sorch soil
or silica, to form a network structure in the paint film, prevent pigment separation, control pigment flocculation, subside and Benaud rotary nest flow, reduce floating flowering phenomenon to prevent floating or flowering.
three: color paint roller coating process appeared obvious roller printing
cause:
1) brush operation thick and uneven
2) construction without wet connection
3) compatible problems
4) Insufficient dose
5) emulsion less than
6) too many construction points
done solution:
mainly for compatible problem solving
1) mechanical dispersion (color paint)
color paint color in A certain mechanical dispersion of the case, the color can be shown
2) added wetting agent (color paint)
after adding wetting agent, the color becomes much darker, refers to the study of color difference becomes smaller, brush board after no obvious brush marks
3) Adjust the paint formula (base paint)
change the wetting and dispersing thickening system of the coating to solve the compatible problem between the coating and the slurry
Problem 4: There are obvious rain marks on the surface of the paint after the rain
Cause:
1) poor water resistance of the base paint (emulsion hydropluability is too strong, excessive wetting agent or too much hydrotherapeutic additives)
2) substrate water content is too high or environmental humidity is too large
3) closed primer, did not achieve the effect
4) coating film is not completely dry on the water Brushing
5) too much additive residue in dark paint
prevention method:
1) as little as possible with surfactants, as far as possible with silicone, reduce moisture absorption
2) with fluorine modified resins or additives, enhance water resistance and anti-fouling.
3) The use of water-resistant emulsion
4) surface brush cover varnish
Problem 5: after the rain paint surface has obvious color
cause:
1) paint film construction table dry time is insufficient, less than 2 hours after construction encountered rain
2) paint PVC concentration is too high, that is, milk The liquid is too low or the filling is too high
3) paint film water resistance is extremely poor
the solution:
1) to increase the content of the emulsion
2) choose the water-resistant emulsion
previous page
1
2 next page shows the rest on this page