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    Home > Coatings News > Paints and Coatings Market > Coating technology: American coating technology for wood furniture

    Coating technology: American coating technology for wood furniture

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: before the American painting of wood coatings is put on the assembly line, the paint sample shall be made according to the color plate, then the paint sample shall be made, and the reasonable process flow shall be designed after being confirmed by the customer American painting process 1 The process flow of American coating is as follows: Base material treatment → base material adjustment → base color → first primer → sanding → first Douglas → primer → sanding → second Douglas → second primer → 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: before the American coating of wood coatings is put on the assembly line, the paint sample is made according to the color plate, then the paint sample is made, and the reasonable process flow is designed after the customer's confirmation American painting process flow 1 American painting process flow is as follows: base material treatment → base material adjustment → base color → first primer → sanding → first Douglas → primer → sanding → second Douglas → second primer → sanding → color repair → black finish → qualified inspection and packaging 2 Process description (1) base material treatment including damage treatment and repair Use iron nails or screws first Knock the wood surface naturally to form the shape similar to the wormhole, so as to achieve the archaize effect; or file the scar on the edge of the table with a file or rough grind the four corners and the upper part of the table foot with coarse sandpaper to achieve the effect of natural wear; or slightly knock the furniture surface with tools such as screw cap and bolt, so as to produce the bruise depression; or carve the groove mark or scratch with a steel cutter, In order to achieve moth effect Since there may be a few holes, holes, cracks, nail holes or other defects on the surface after the completion of the general furniture blank, most of them are filled with repair materials After the filling is dry, first use 120 × and 150 × to 180 × crawler flat sanding, and then use 150 × to 240 × machine sand or hand sanding (2) Base material adjustment has color difference due to various reasons of wood itself, such as cost, natural drying, material selection, splicing, sapwood, heartwood and splicing of different base materials Dye or pigment can be dissolved in mixed solvent to prepare coloring solution to repair the color difference on the surface of wood Old wormhole effect: (3) the base color is generally air spraying, and different colorants are used according to the color of the color plate to make the base color close to the color of the color plate (4) The first primer nitrocellulose paint has the advantages of simple construction, fast drying speed, easy polishing and waxing, and convenient repair It is widely used in American painting system Because the construction solid content of the first primer is usually 5% - 15%, and its viscosity is low, it will quickly penetrate into the surface of wood, solidify the resin composition of wood to improve the adhesion of the film, and prevent uneven spots of the substrate, It can also inhibit the absorption of the upper coating by wood It is very important to control the viscosity of this coating, which is usually 8-12s (coating - 2 cups) When the viscosity is high, the color of Grice is lighter; when the viscosity is low, the color of Grice is darker, which can avoid the phenomenon of blackening after wiping Grice (5) After spraying the sanding primer for 1h, sanding with 320 × sandpaper to enhance the adhesion (6) Glaze, also known as antique paint, is a colorant composed of slow drying solvent, easy to wipe oil and resin, and transparent or translucent pigments It is characterized by moderate permeability, not dissolving the primer at the lower layer, and making use of the characteristics of pigment to form the classical flavor of soft shadow effect on the material surface This is the most important step of color presentation and control in the coating process When coating, it can flexibly control the residual quantity of Grice, and integrate the color of wood and fiberboard edge into the same color Usually use clockwise or anticlockwise wipe back and forth, the last wipe must be in the direction of the wood grain; you can also use a brush to evenly brush the remaining grace, so that the surface can obtain the desired color and the distribution of the wood grain outline And use 000 ා or 0000 ා steel wool to contrast the light and shade along the grain direction of wood grain, and then use a brush or rag to wipe the light and shade to achieve soft color and natural effect (7) After finishing the operation of Grice, the second primer is applied after drying for 20-30min to enhance the adhesion between Grice colorant and base material, increase the thickness of coating film and make the surface smooth, and play a bridging role between wood and finish paint The spraying viscosity is controlled at 16-18s (coating-2 cups), and the spraying thickness is controlled at 15-30 μ M (8) Second, according to the effect of color board, Douglas can deepen the color around and on the edge of the furniture as well as make the old treatment In the lighter color parts and edges, she can also use a brush to stick with the color agent of grace to draw some traces like the trail of cow's tail, and then spray black spots like fly excrement with the spray gun to show the effect of the old classical furniture, Alcohol soluble colorant or oil colorant can also be used for spray point (9) Color repair this is the last coloring process in the whole coating process The color shall be repaired according to the standard color plate The color can be fully sprayed, or the low concentration alcohol soluble colorant can be moistened with soft cloth according to the actual situation, and the film can be patted to form a dark side, then the steel velvet can be used to make a bright layer effect, enhance the wood texture effect, so as to increase the three-dimensional feeling, but the soft and natural feeling should be paid special attention to (10) Finishing coat is the last step of the coating process The fullness and transparency of the coating film are very important At the same time, it should have the characteristics of stain resistance, water resistance, alcohol resistance, easy polishing, no back adhesion, high hardness, good flexibility, excellent adhesion, and no cracking of the coating film The spraying viscosity of the surface paint should be controlled within 11-13s (11) The package shall be packed after 12h of finishing coat, and it shall be qualified after inspection 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,
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