CN111873685A - Efficient building colored drawing construction method - Google Patents
Efficient building colored drawing construction method Download PDFInfo
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- CN111873685A CN111873685A CN202010768882.1A CN202010768882A CN111873685A CN 111873685 A CN111873685 A CN 111873685A CN 202010768882 A CN202010768882 A CN 202010768882A CN 111873685 A CN111873685 A CN 111873685A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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Abstract
The invention relates to a process for coating liquid or other fluids on a surface, and discloses an efficient construction method for colored drawing of buildings. In the invention, a white strippable paint is coated and brushed on a background color to form a development stripping layer capable of clearly displaying a projected pattern, the pattern to be drawn is projected on the development stripping layer, the development stripping layer covered by the projected pattern is conveniently stripped under the assistance of the projected pattern, coloring can be carried out at high speed by various large-scale paint spraying machines in the stripped area, and pigment outside the splashed pattern can be stripped along with the rest development stripping layer. The construction method of the invention is similar to the method of using a photoetching machine to carve the integrated circuit pattern on the silicon chip, the efficiency is obviously improved compared with hand-painted manuscript and coloring, and the invention can adapt to various concave-convex surfaces and curved surfaces, and even can replace the paster for automobile decoration.
Description
Technical Field
The invention relates to a process for coating liquid or other fluids on surfaces, in particular to a high-efficiency construction method for colored drawing of buildings.
Background
The architectural colored drawing is an architectural decoration mode which is long-passed from ancient times to present. Various complex patterns are drawn on the wall, the floor, the ceiling and the like to express various different requirements, such as blessing, religion or pure art decoration.
The traditional building colored drawing is directly drawn on a building by an artist, is time-consuming and labor-consuming, has high requirements on constructors, can be only affordable for the royal public noble or religious occasions, and also strictly limits the use of civilians by a closure courtesy so as to avoid the 'being beyond the word' and the citizens can only brush certain pigment with monotonous color on the buildings of the citizens.
The current building colored drawing has already jumped the constraint of the sealing and building method, and anyone can decorate own home according to own preference. In addition, a large amount of colored drawings are needed to be drawn in many occasions such as simple pen decorative drawings of schools and parks, publicity paintings of districts, marks of square floors and the like. The architectural painting technology has been developed unprecedentedly, and besides the traditional direct painting, the technology of painting art also appears, and the technology of directly printing complex painting on the building by using a UV printer even appears in the 21 st century.
UV flat printing is almost a perfect architectural color painting construction scheme, various fine patterns can be printed efficiently at high speed, the cost is only 3-5 yuan per square meter, and any other architectural color painting construction scheme has no competitiveness compared with the UV flat printing scheme in the occasion of using the UV printer.
However, as the name suggests, the UV printer needs to work on a flat surface, and is not specially developed for architectural painting, and the surfaces of dry walls, large-seam tile walls, spliced aluminum-plastic panels, curved wall bodies, stairs and the like cannot be applied.
Photolithography is a major process in the production of planar transistors and integrated circuits, in which patterns of integrated circuits are projected onto a silicon wafer coated with photoresist, the photoresist in the irradiated region is changed, and then ion implantation is performed to rapidly engrave complex microcircuits on the silicon wafer.
Strippable coatings are commonly used to protect metal parts from rust during shipping, and are quickly cured to form a film after spraying and removed entirely when not needed.
Disclosure of Invention
The invention provides an efficient construction method for colored drawing of buildings.
The technical problem to be solved is that: in architectural painting, hand painting is costly and inefficient, and UV printing cannot be used on uneven surfaces.
In order to solve the technical problems, the invention adopts the following technical scheme: an efficient construction method for colored drawing of buildings comprises the following steps:
step 1, surface treatment: cleaning the surface to be painted, and adjusting the roughness to meet the adhesion requirement of the background color coating;
step 2, brushing background color: selecting a paint which can be firmly adhered to a surface to be drawn as a background color paint, blending the color of the paint into the background color of a colored drawing picture, and painting the background color paint on the surface to be drawn to form a background color coating;
step 3, laying a developing stripping layer: after the background color coating is completely dried, blending a white strippable coating, and coating the white strippable coating on the background color coating to form a development stripping layer;
step 4, engraving a manuscript: after the developing stripping layer is completely dried, projecting the pattern to be drawn onto the surface to be drawn, engraving the outline of the pattern to be drawn on the developing stripping layer, and stripping the developing stripping layer in each area according to different areas of the color of each area of the pattern;
step 5, coloring: coloring in the region of the background color coating from which the developing stripping layer is stripped;
step 6, removing the development stripping layer: the pigment to be colored is completely dried and all the remaining developed release layer is removed.
Further, the construction method for colored drawing of buildings also comprises the following steps:
and 7: and painting the ultraviolet-proof transparent finish coat on the whole building colored drawing.
Further, step 5 comprises the following substeps:
step 5.1: coating white pigment in the area where the developing stripping layer is completely stripped on the background color coating to form a coloring bottom layer, and directly taking the background color coating as the coloring bottom layer without coating the white pigment if the background color coating is white;
step 5.2: and after the coloring bottom layer is completely dried, coloring the coloring bottom layer, coloring the pure color area in a flat coating and/or flat spraying mode, and coloring the gradient color area in a cover dyeing and/or mist spraying mode.
Further, step 5 also includes the following substeps:
step 5.3: the area where the coloring defect exists is covered and repaired with an acryl pigment.
Further, in the step 4, different equipment is selected according to different working conditions to project the pattern to be drawn onto the surface to be drawn;
working condition 1: indoor construction, namely projecting a pattern to be drawn onto a surface to be drawn by using a projector;
working condition 2: and (3) outdoor construction, namely projecting the pattern to be drawn onto the surface to be drawn by using a laser pen and a grating.
Further, step 1 comprises the following substeps:
step 1.1: removing burrs, stains, dust and other various sundries on the surface to be drawn;
step 1.2: processing the surface to be drawn in different modes according to different working conditions;
working condition 1: filling pits and scratches on the surface to be drawn with epoxy daub;
working condition 2: and the surface to be drawn is made of metal or organic material, and is polished by abrasive paper, so that the roughness of the surface to be drawn meets the attachment requirement of the background color coating.
Further, in step 5, a laser scanner is used to project grid lines as auxiliary lines for coloring in the region where the developed peeling layer is peeled off on the background color coating layer.
Further, the developing stripping layer in the step 3 comprises the following components in parts by weight: 63-75 parts of film-forming resin, 2-4 parts of anti-settling agent, 3-5 parts of tackifying resin and 17-20 parts of white pigment.
Further, step 3 comprises the following substeps:
step 3.1: taking 63-75 parts by weight of film-forming resin, 2-4 parts by weight of anti-settling agent and 3-5 parts by weight of tackifying resin, dissolving in 300 parts by weight of solvent of 100, then adding 17-20 parts by weight of white pigment, and uniformly mixing to obtain white strippable coating;
step 3.2: the white strippable paint of step 3.1 is painted over the background color coating.
Further, the step 2, the step 3, the step 5 and the step 7 are all carried out when the air temperature of the construction site is higher than 10 ℃ and is at least 3 ℃ higher than the dew point temperature of the air of the construction site.
Compared with the prior art, the efficient construction method for colored drawing of buildings has the following beneficial effects:
in the invention, a white strippable paint is coated and brushed on a background color to form a development stripping layer capable of clearly displaying a projected pattern, the pattern to be drawn is projected on the development stripping layer, the development stripping layer covered by the projected pattern is conveniently stripped under the assistance of the projected pattern, coloring can be carried out at high speed by various large-scale paint spraying machines in the stripped area, and pigment outside the splashed pattern can be stripped along with the rest development stripping layer. The construction method of the invention is similar to the method of using a photoetching machine to carve the integrated circuit pattern on the silicon chip, the efficiency is obviously improved compared with hand-painted manuscript and coloring, and the invention can adapt to various concave-convex surfaces and curved surfaces, and even can replace the paster for automobile decoration.
Drawings
FIG. 1 is a flow chart of an efficient architectural painting construction method of the present invention.
Detailed Description
As shown in fig. 1, an efficient construction method for colored drawing of buildings includes the following steps:
step 1, surface treatment: cleaning the surface to be painted, and adjusting the roughness to meet the adhesion requirement of the background color coating; the method specifically comprises the following steps:
step 1.1: removing burrs, stains, dust and other various sundries on the surface to be drawn; bird droppings may exist on the surface of a wooden building, mortar may exist on the surface of a reinforced cement building, stains attached to the building can be shoveled off by using a small shovel, residual adlets, paint, rust and the like need to be sprayed with water and then are ground off by using an angle grinder, and areas with a large amount of oil stains can be firstly soaked by using solvent naphtha, then the solvent naphtha is wiped off and washed by using a detergent. After the residual foreign matter is cleaned, it may be washed with water and wiped OFF, or may be cleaned with a water-free cleaning agent such as KRUD KUTTER GLOSS-OFF.
Step 1.2: if the surface to be drawn is made of inorganic nonmetal materials, filling pits and scratches on the surface to be drawn with epoxy cement gum; and if the surface to be drawn is made of metal or organic material, polishing the surface to be drawn by using sand paper to ensure that the roughness of the surface to be drawn meets the attachment requirement of the background color coating. Note that some special materials, such as teflon, are difficult to adhere to various paints and require treatment with a corresponding surface treatment agent, and in the case of teflon, require treatment with a polytetrafluoroethylene surface treatment agent.
Step 2, brushing background color: selecting a paint which can be firmly adhered to a surface to be drawn as a background color paint, blending the color of the paint into the background color of a colored drawing picture, and painting the background color paint on the surface to be drawn to form a background color coating; traditional buildings are usually painted with red paint or blue paint, and various public places need to be painted with milky white or light yellow eye-protecting colors, which are different from the original colors of the pictures to be drawn and are customized according to the requirements of customers. The background color coating is usually prepared by using a coating such as an epoxy primer as a base, spraying twice after the epoxy primer is prepared into a required color, finishing one complete wet coating, washing for 5-10 minutes between the coatings, and then coating a second complete wet coating to finally form a paint film with the thickness of 2-3 mils. The surface to be painted can be protected. Certainly, like the community poster, the budget is not high, the painting has no special requirement on the background color of the picture, the background color can be not coated, and the background of the surface to be painted is taken as a background color coating, so that the cost is saved. Besides color, the background color coating needs to be mixed with a flatting agent to adjust the glossiness, but the powder particle size of the flatting agent needs to be noticed, and the flatting agent powder with smaller particle size needs to be selected when the background color coating is thinner.
Step 3, laying a developing stripping layer: after the background color coating is completely dried, blending a white strippable coating, and coating the white strippable coating on the background color coating to form a development stripping layer;
the method comprises the following steps:
step 3.1, preparing a white strippable coating: taking 63-75 parts by weight of film-forming resin, 2-4 parts by weight of anti-settling agent and 3-5 parts by weight of tackifying resin, dissolving in 300 parts by weight of solvent of 100, then adding 17-20 parts by weight of white pigment, and mixing to obtain uniform suspension, namely the white strippable coating;
one preferred formulation of a white strippable coating is: taking 71 parts by weight of polyurethane acrylic copolymer, 4 parts by weight of polyamide wax, 5 parts by weight of terpene resin, dissolving 100 parts by weight of turpentine, and then adding 20 parts by weight of titanium dioxide and uniformly mixing;
step 3.2: and (3) coating the white strippable paint obtained in the step (3.1) on a background color coating, and volatilizing a solvent to obtain the strippable paint containing the following components: 63-75 parts of film-forming resin, 2-4 parts of anti-settling agent, 3-5 parts of tackifying resin and 17-20 parts of white pigment.
White strippable coatings can also be formulated by incorporating a white coating with commercially available colorless strippable coatings, but it is noted that the incorporation of a white pigment can have an effect on the performance of the strippable coating, and the white pigment acts like a stripper, resulting in poor adhesion, and thus the incorporation of a white coating along with the need for the incorporation of a tackifying resin.
In addition, if the pattern to be drawn only occupies a part of the whole architectural painting, the developing stripping layer can be laid only in the area and the periphery of the pattern to be drawn. The developing stripping layer has the effect similar to that of photoresist in a photoetching machine, so that the background color coating around the developing stripping layer is not needed to be stained when coloring is carried out, the coloring operation can be carried out by various large-scale paint spraying machines without fine operation, constructors do not need to have painting bases, and common construction workers can also take the effect. The white pigment is used for clearly exposing the pattern projected to the development stripping layer, thereby facilitating the construction of workers.
Step 4, engraving a manuscript: after the developing stripping layer is completely dried, projecting the pattern to be drawn onto the surface to be drawn, engraving the outline of the pattern to be drawn on the developing stripping layer, and stripping the developing stripping layer in each area according to different areas of the color of each area of the pattern;
however, in the conventional art, although the cost is too high for architectural color painting, the development peeling layer is selected to be manually peeled off along the edge of the pattern after projection, and the tool for peeling off is preferably a stylus for wax-engraved paper. If the construction is carried out indoors, a projector can be used for projecting the pattern to be drawn onto the surface to be drawn; the projected pattern is colored, and in the next coloring operation, the projector can be always opened to assist the coloring operation; however, if the pattern of the projector is not clearly visible in outdoor construction, the laser pen and the grating are required to project the pattern to be drawn on the surface to be drawn.
Step 5, coloring: coloring in the region of the background color coating from which the developing stripping layer is stripped; the method specifically comprises the following steps:
step 5.1: coating white pigment in the area where the developing stripping layer is completely stripped on the background color coating to form a coloring bottom layer, and directly taking the background color coating as the coloring bottom layer without coating the white pigment if the background color coating is white; the white coloring bottom layer is arranged to overcome the defect of pigment covering capacity, prevent background colors from being penetrated out of the pigment to influence a picture, and certainly, if the pigment with better covering effect is selected and thick coating is carried out, the coloring bottom layer is not needed;
step 5.2: and after the coloring bottom layer is completely dried, coloring the coloring bottom layer, coloring the pure color area in a flat coating and/or flat spraying mode, and coloring the gradient color area in a cover dyeing and/or mist spraying mode. Any pattern has no two areas of pure color and gradient color, and the pure color area accounts for most or even all of the patterns; the pigment used for coloring is preferably an inorganic pigment with stronger weather resistance, and the organic coating has poorer weather resistance. In the embodiment, a paint film with the thickness of 1.5-2 mils is formed by spraying high-performance polyurethane paint according to project requirements, and a paint film with the thickness of not more than 0.5 mils is formed by using aqueous scene paint as a standby scheme. In addition, the grid lines can be projected by a laser swinger as auxiliary lines for coloring.
Step 5.3: the acrylic pigment is used for covering and repairing the area with coloring defects, is rich in color, easy to adjust and use and good in covering effect, can be attached to the water-based or oil-based surface, and can be repeatedly modified.
Step 6, cleaning: the pigment to be colored is completely dried, and all residual developing stripping layers are removed, and simultaneously the pigment splashed on the background color coating is removed.
And 7: and painting the ultraviolet-proof transparent finish coat on the whole building colored drawing to form a paint film with the thickness of not more than 1 mil.
Step 2, step 3, step 5 and step 7 are carried out when the temperature of the construction site is higher than 10 ℃, and when the temperature is too low, various coatings cannot form smooth and compact films; meanwhile, the relative humidity of the air also has requirements, and the air temperature of the construction site is at least 3 ℃ higher than the dew point temperature of the air of the construction site so as to avoid the foaming of the coating. In addition, when painting, attention should be paid to the fact that the surface of a paint film does not have any sagging, paint drops and air bubbles, and the paint film is smooth as much as possible, so that orange peel is prevented from appearing on the paint film.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention, including the application of the present invention in pure liquid, made by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. An efficient construction method for colored drawing of buildings is characterized in that: the method comprises the following steps:
step 1, surface treatment: cleaning the surface to be painted, and adjusting the roughness to meet the adhesion requirement of the background color coating;
step 2, brushing background color: selecting a paint which can be firmly adhered to a surface to be drawn as a background color paint, blending the color of the paint into the background color of a colored drawing picture, and painting the background color paint on the surface to be drawn to form a background color coating;
step 3, laying a developing stripping layer: after the background color coating is completely dried, blending a white strippable coating, and coating the white strippable coating on the background color coating to form a development stripping layer;
step 4, engraving a manuscript: after the developing stripping layer is completely dried, projecting the pattern to be drawn onto the surface to be drawn, engraving the outline of the pattern to be drawn on the developing stripping layer, and stripping the developing stripping layer in each area according to different areas of the color of each area of the pattern;
step 5, coloring: coloring in the region of the background color coating from which the developing stripping layer is stripped;
step 6, removing the development stripping layer: the pigment to be colored is completely dried and all the remaining developed release layer is removed.
2. The efficient building colored drawing construction method according to claim 1, characterized in that: the construction method for colored drawing of the building further comprises the following steps:
and 7: and painting the ultraviolet-proof transparent finish coat on the whole building colored drawing.
3. The efficient building colored drawing construction method according to claim 1, characterized in that: step 5 comprises the following sub-steps:
step 5.1: coating white pigment in the area where the developing stripping layer is completely stripped on the background color coating to form a coloring bottom layer, and directly taking the background color coating as the coloring bottom layer without coating the white pigment if the background color coating is white;
step 5.2: and after the coloring bottom layer is completely dried, coloring the coloring bottom layer, coloring the pure color area in a flat coating and/or flat spraying mode, and coloring the gradient color area in a cover dyeing and/or mist spraying mode.
4. The efficient building colored drawing construction method according to claim 3, wherein: step 5 also comprises the following sub-steps:
step 5.3: the area where the coloring defect exists is covered and repaired with an acryl pigment.
5. The efficient building colored drawing construction method according to claim 1, characterized in that: step 4, selecting different equipment according to different working conditions to project the pattern to be drawn onto the surface to be drawn;
working condition 1: indoor construction, namely projecting a pattern to be drawn onto a surface to be drawn by using a projector;
working condition 2: and (3) outdoor construction, namely projecting the pattern to be drawn onto the surface to be drawn by using a laser pen and a grating.
6. The efficient building colored drawing construction method according to claim 1, characterized in that: the step 1 comprises the following sub-steps:
step 1.1: removing burrs, stains, dust and other various sundries on the surface to be drawn;
step 1.2: processing the surface to be drawn in different modes according to different working conditions;
working condition 1: filling pits and scratches on the surface to be drawn with epoxy daub;
working condition 2: and the surface to be drawn is made of metal or organic material, and is polished by abrasive paper, so that the roughness of the surface to be drawn meets the attachment requirement of the background color coating.
7. The efficient building colored drawing construction method according to claim 1, characterized in that: in step 5, a laser scanner is used for projecting grid lines as auxiliary lines for coloring in the area where the developing stripping layer is stripped on the background color coating.
8. The efficient building colored drawing construction method according to claim 1, characterized in that: the developing stripping layer in the step 3 comprises the following components in parts by weight: 63-75 parts of film-forming resin, 2-4 parts of anti-settling agent, 3-5 parts of tackifying resin and 17-20 parts of white pigment.
9. The efficient building colored drawing construction method according to claim 1, characterized in that: the step 3 comprises the following sub-steps:
step 3.1: taking 63-75 parts by weight of film-forming resin, 2-4 parts by weight of anti-settling agent and 3-5 parts by weight of tackifying resin, dissolving in 300 parts by weight of solvent of 100, then adding 17-20 parts by weight of white pigment, and uniformly mixing to obtain white strippable coating;
step 3.2: the white strippable paint of step 3.1 is painted over the background color coating.
10. The efficient construction method for colored drawing of buildings according to any one of claims 2 to 9, characterized in that: and 2, 3, 5 and 7 are carried out when the air temperature of the construction site is higher than 10 ℃ and is at least 3 ℃ higher than the dew point temperature of the air of the construction site.
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