CN117324233A - Low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process - Google Patents
Low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process Download PDFInfo
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- CN117324233A CN117324233A CN202311299550.3A CN202311299550A CN117324233A CN 117324233 A CN117324233 A CN 117324233A CN 202311299550 A CN202311299550 A CN 202311299550A CN 117324233 A CN117324233 A CN 117324233A
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- 239000004568 cement Substances 0.000 title claims abstract description 44
- 239000000835 fiber Substances 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 title claims abstract description 25
- 238000009500 colour coating Methods 0.000 title claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 106
- 238000000576 coating method Methods 0.000 claims abstract description 106
- 239000007787 solid Substances 0.000 claims abstract description 101
- 239000003973 paint Substances 0.000 claims abstract description 56
- 230000000149 penetrating effect Effects 0.000 claims abstract description 30
- 229910052753 mercury Inorganic materials 0.000 claims description 90
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 73
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 55
- 229910052733 gallium Inorganic materials 0.000 claims description 55
- 238000001035 drying Methods 0.000 claims description 48
- 239000012466 permeate Substances 0.000 claims description 10
- 238000011049 filling Methods 0.000 claims description 9
- 238000007761 roller coating Methods 0.000 claims description 9
- 239000003242 anti bacterial agent Substances 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 15
- 239000002585 base Substances 0.000 description 13
- 239000002966 varnish Substances 0.000 description 13
- 238000005498 polishing Methods 0.000 description 12
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 229910052918 calcium silicate Inorganic materials 0.000 description 8
- 239000000378 calcium silicate Substances 0.000 description 8
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- 230000000844 anti-bacterial effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000010425 asbestos Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 5
- 229910052895 riebeckite Inorganic materials 0.000 description 5
- 238000005034 decoration Methods 0.000 description 4
- 239000011094 fiberboard Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000000941 radioactive substance Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/57—Three layers or more the last layer being a clear coat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process, which sequentially comprises a penetrating primer layer, a putty layer, a sanding primer layer, an attaching primer layer, a high-coverage primer layer, a solid-color primer layer, a second sanding primer layer and a matte finishing primer layer from inside to outside, wherein the solid-color primer layer comprises a first solid-color primer layer, a second solid-color primer layer and a third solid-color primer layer from inside to outside, the first solid-color primer layer, the second solid-color primer layer and the third solid-color primer layer are all prepared by adopting a single-roller rolling coater to coat solid-color primer, and the coating amount is 5-15g/m 2 The curing energy of the first solid color primer layer is controlled as follows: UVA:300-400mJ/cm, UVV:800-1000 mJ/cm; second oneThe curing energy of the solid color primer layer is controlled as follows: UVA:300-400mJ/cm, UVV:400-500 mJ/cm; the curing energy of the third solid color primer layer is controlled as follows: UVA:300-400mJ/cm, UVV:500-600 mJ/cm. The invention provides a low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process, which solves the problems of paint removal and color change in the prior art.
Description
Technical Field
The invention relates to the technical field of coated board preparation, in particular to a low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process.
Background
At present, the assembled building market in China is in a rapid development stage, and the assembled building is developed as a trigger, so that the existing decoration mode is changed, and the assembled decoration is greatly promoted.
The calcium silicate board is a new type board for building and repairing, which is made up by mixing several raw materials (siliceous material, calcareous material and reinforcing fibre) and features multiple characteristics. The calcium silicate board can be widely applied in the fields of industry, residential buildings and decoration. And the calcium silicate board is simple and quick to install, the construction period of the building can be greatly shortened, and the construction cost can be reduced. The calcium silicate board has the advantages of strong fireproof performance, stable waterproof performance, high strength, good heat and sound insulation effect, acid and alkali resistance, difficult corrosion, no damage to moisture, insect and ant and the like, and long service life, so that the calcium silicate board has wide application in the building and decoration industry.
However, the following disadvantages exist in the preparation of UV matte solid color coated plates by using the calcium silicate plate as a base material: asbestos is contained in the plate, and asbestos dust is easy to cause cancer; the solid content of paint used for coating is not particularly high, a large amount of VOC exists, and the environment is polluted; the water liquid at the joint of the UV coating plate is easy to permeate, and the mildew of the composite layer of the UV coating plate is easy to cause; because the base material is a calcium silicate board, the requirements on the permeability and the adhesive force of the paint are very high, and the problems of paint removal, insufficient board fullness and the like exist in the products produced by the prior art; color mixing is not well controlled, chromatic aberration among batches is relatively large, weather resistance is not good, and color change is easy to occur; the calcium silicate board has poor flexibility, is easy to damage and even break, and is very careful in the construction process.
Disclosure of Invention
In view of the above, the invention provides a low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process, which solves the problems of paint removal and color change in the prior art.
In order to achieve the aim, the invention provides a low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process, which sequentially comprises a penetrating primer layer, a putty layer, a sanding primer layer, an adhesion primer layer, a high-coverage primer layer, a solid-color primer layer, a second sanding primer layer and a matte finishing primer layer from inside to outside, wherein the penetrating primer layer comprises a transparent primer layer, a high-coverage primer layer, a solid-color primer layer, a second sanding primer layer and a matte finishing primer layerThe paint layer is a sponge roller coating penetrating primer, and the coating weight is 45-55g/m 2 The permeate primer layer was dried using 1 mercury lamp +1 crop lamp, with energy control at: UVA:250-350mJ/cm, UVV:400-500 mJ/cm;
the solid color primer layer comprises a first solid color primer layer, a second solid color primer layer and a third solid color primer layer from inside to outside, wherein the solid color primer layer is coated by a single-roller roll coater, and the coating amount is 5-15g/m 2 ；
The first solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, wherein the energy is controlled in the following way: UVA:300-400mJ/cm, UVV:800-1000 mJ/cm;
the second solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, wherein the energy is controlled in the following way: UVA:300-400mJ/cm, UVV:400-500 mJ/cm;
and the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:300-400mJ/cm, UVV:500-600 mJ/cm.
The beneficial effects are that: the invention provides a low-carbon environment-friendly UV matte solid-color coating process for a non-autoclaved fiber cement board, wherein a sponge roller is used for coating a permeable primer layer, so that the permeable primer layer can be better permeated into a base material to form a transition layer with very good bonding degree, the solid-color primer layer comprises three layers of solid-color primer layers, but the curing energies of the three layers of solid-color primer layers are different, wherein the first solid-color primer layer has the highest curing energy and can play a role of deep curing, the adhesive force between paint films is increased, the curing energy of the second solid-color primer layer is the lowest, and the curing energy of the third solid-color primer layer is higher than the curing energy of the second solid-color primer layer but lower than the curing energy of the first solid-color primer layer, so that the color is more stable, and the problem of color change is avoided.
Optionally, the putty layer is roller-coated high-filling putty, and the coating weight is 25-35g/m 2 The putty layer adopts 1 mercury lamp +1 gallium lamp to dry, and wherein energy control is at: UVA:250-350mJ/cm, UVV:400-500 mJ/cm.
The beneficial effects are that: wherein, the high filling putty is used to better fill the flatness of the substrate.
Optionally, the sanding primer layer is coated with sanding primer by a forward and reverse roll coater, and the coating amount is 35-45g/m 2 The sanding primer layer is dried by a double-mercury lamp, wherein the energy is controlled in the following way: UVA:350-450mJ/cm, UVV:450-550 mJ/cm.
Optionally, the adhesion primer layer is a single-roller adhesion white primer, and the coating weight is 10-20g/m 2 The adhesion primer layer is dried by a three-mercury lamp, wherein the energy is controlled to be 600-800 mJ/cm.
The beneficial effects are that: the adhesion of the primer layer can improve the adhesion of the paint in the next step and avoid delamination.
Optionally, the high coverage primer layer is a single-roller coater coated with high coverage white primer, and the coating amount is 5-15g/m 2 The high hiding primer layer was dried using 1 mercury lamp +1 crop lamp with energy control at: UVA:300-400mJ/cm, UVV:400-500 mJ/cm.
Optionally, the high hiding primer layer coating and drying steps are repeated twice.
The beneficial effects are that: the high covering primer layer can better improve the energy of the cover ground color and avoid color difference.
Optionally, the second sanding primer layer is coated with sanding primer by a forward and reverse roll coater, and the coating amount is 30-50g/m 2 The second sanding primer layer adopts a gallium lamp and a double-mercury lamp to carry out ultraviolet full-dry forming sanding primer layer, and the energy is controlled in the following way: 300-400 mJ/cm.
Optionally, a putty layer and a permeable primer layer which are arranged from inside to outside are further included between the permeable primer layer and the putty layer.
Optionally, the matte varnish layer comprises 0.5-1.5 parts of mildew-proof antibacterial agent per 100 parts by weight.
Alternatively, the mildewproof antimicrobial agent is ROCIMA342 manufactured by Tao Shiluo phylum haas.
The technical scheme of the invention at least comprises the following beneficial effects:
the invention provides a low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process, which solves the problems of paint removal and insufficient fullness through adjustment of the process and products; solves the problems of chromatic aberration and color change; the steaming-free cement fiberboard with a special process solves the problems of product damage, breakage and the like and insufficient flexibility, improves the efficiency, reduces the loss, and solves the problems of carcinogen in a base material and VOC emission in paint in the prior art by using a novel environment-friendly material; the mildew-proof antibacterial agent is added, so that the technical problem that water liquid at the joint of the UV coated plate is easy to permeate and mildew of a composite layer of the UV coated plate is easy to cause is solved.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
Example 1
The invention provides a low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process, which sequentially comprises a penetrating primer layer, a putty layer, a sanding primer layer, an attaching primer layer, a high-coverage primer layer, a solid-color primer layer, a second sanding primer layer and a matte finishing paint layer from inside to outside, wherein the penetrating primer layer is a sponge roller coating penetrating primer, and the coating amount is 45-55g/m 2 The permeate primer layer was dried using 1 mercury lamp +1 crop lamp, with energy control at: UVA:250-350mJ/cm, UVV:400-500 mJ/cm;
the solid color primer layer comprises a first solid color primer layer, a second solid color primer layer and a third solid color primer layer from inside to outside, wherein the first solid color primer layer, the second solid color primer layer and the third solid color primer layer are all prepared by adopting a single-roller roll coater to coat the solid color primer, and the coating amount is 5-15g/m 2 ；
The first solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:300-400mJ/cm, UVV:800-1000 mJ/cm;
the second solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:300-400mJ/cm, UVV:400-500 mJ/cm;
the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:300-400mJ/cm, UVV:500-600 mJ/cm.
Specifically, the method comprises the following steps:
step one, feeding a non-autoclaved fiber cement board to a production line;
step two, lightly polishing the cement board in the step one by using a polishing wheel;
step three: carrying out first dust removal on the surface of the cement board treated in the second step;
step four, coating penetrating primer by a sponge roller on the basis of the step three, wherein the coating amount is 45g/m 2 ；
Step five, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of the step four, so that the paint film is semi-dried to form a penetrating primer layer penetrating into the substrate, wherein the energy is controlled as follows: UVA:250mJ/cm, UVV:400 mJ/cm;
step six, rolling high filling putty on the basis of the step five, wherein the coating weight is 25g/m 2 ；
Step seven, drying is carried out by adopting 1 mercury lamp and 1 gallium lamp on the basis of the step six, so that the paint film is completely dried to form a putty layer, wherein the energy is controlled as follows: UVA:250mJ/cm, UVV:400 mJ/cm;
step eight, turning over and continuing construction after finishing the step seven;
step nine, lightly polishing the steaming-free fiber cement board in the step eight by using a polishing wheel;
step ten: carrying out first dust removal on the surface of the steaming-free fiber cement board treated in the step nine;
step eleven, roll coating the penetrating primer with a sponge roller on the basis of the step ten, wherein the coating weight is 45g/m 2 ；
Step twelve, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of step eleven, so that the paint film is semi-dried to form a permeable primer layer which permeates into the substrate, wherein the energy is controlled as follows: UVA:250mJ/cm, UVV:400 mJ/cm;
step thirteen, coating high filling putty with the coating weight of 25g/m based on the step twelve 2 ；
Step fourteen, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of the step thirteenth to make the paint film semi-dry, wherein the energy is controlled as follows: UVA:250mJ/cm, UVV:400 mJ/cm;
fifteen, coating sanding primer on the fourteen putty layers by adopting a forward and reverse roller coating machine, wherein the coating amount is 35g/m 2 ；
Sixthly, drying by adopting a double-mercury lamp on the basis of fifteen steps to enable a paint film to be nine-dried, wherein the energy is controlled as follows: UVA:350mJ/cm, UVV:450 mJ/cm;
seventeenth, sanding and flattening the surface of the sanding primer layer by a sander;
eighteen, dedusting the surface of the matte primer layer in seventeen;
nineteenth, the single roller adhesive force white primer is coated on the surface of the sanding primer layer, and the coating weight is 10g/m 2 ；
Step twenty, drying by adopting a three-mercury lamp on the basis of the step nineteenth to enable a paint film to be semi-dried to form an attached primer layer, wherein the energy is controlled at 600 mJ/cm;
step twenty-one, coating a high coverage white primer on the twenty-first primer layer with a single roll coater at a coating weight of 5g/m 2 ；
And twenty-two steps, namely drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-two steps to make the paint film semi-dry to form a high-coverage primer layer, wherein the energy is controlled as follows: UVA:300mJ/cm, UVV:400 mJ/cm;
twenty-third step, coating high coverage white primer on the twenty-second step primer layer by adopting a single-roller roll coater, wherein the coating amount is 5g/m 2 ；
Twenty four steps are adopted to dry on the basis of twenty three steps, 1 mercury lamp and 1 gallium lamp are adopted to enable a paint film to be semi-dry to form a high-coverage primer layer, and the energy is controlled in the following steps: UVA:300mJ/cm, UVV:400 mJ/cm;
twenty-five steps, coating solid color primer on the twenty-four primer layers in the step with a single-roller roll coater, wherein the coating amount is 5g/m 2 ；
Sixteenth, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-five steps to make the paint film semi-dry to form a first solid color primer layer, wherein the energy is controlled as follows: UVA:300mJ/cm, UVV:800 mJ/cm;
twenty-seven steps, coating solid color primer on the twenty-sixteen primer layers in the step by adopting a single-roller roll coater, wherein the coating amount is 5g/m 2 ；
And twenty-eight, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-seven, so that the paint film is semi-dried to form a second solid color primer layer, wherein the energy is controlled as follows: UVA:300mJ/cm, UVV:400 mJ/cm;
twenty-nine steps, coating solid color primer on the twenty-eight primer layer by adopting a single-roller roll coater, wherein the coating amount is 5g/m 2 ；
And step thirty, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-nine steps, and forming a third solid color primer layer by semi-drying a paint film, wherein the energy is controlled as follows: UVA:300mJ/cm, UVV:500 mJ/cm;
step thirty-one, coating sanding primer on the thirty-primer layer by adopting a forward and reverse roller rolling coater, wherein the coating amount is 30g/m 2 ；
And step thirty-two, wherein a gallium lamp and a double-mercury lamp are adopted to carry out ultraviolet full drying on the basis of the step thirty-one to form a second sanding primer layer, and the energy is controlled as follows: 300 mJ/cm;
thirty-three steps, sanding the surface of the second sanding primer layer by using 400# +600# sand paper;
a step thirty-fourth, namely dedusting the surface of the second sanding primer layer treated in the step thirty-third;
thirty-five steps are carried out, and a forward and reverse roller rolling coater is adopted to coat UV matte varnish on the surface of the thirty-four second sanding primer layer, wherein the coating amount is 5g/m 2 ；
Thirty-six steps, ultraviolet semi-drying is carried out by using a gallium lamp and a double mercury lamp on the basis of thirty-five steps, and the energy is controlled as follows: 300 mJ/cm;
seventy-seven steps, coating UV matte varnish on the surface of the thirty-six matte varnish layer in the step by adopting a single-roller coater, wherein the coating amount is 5g/m 2 ；
Performing ultraviolet full drying by using a gallium lamp and a double-mercury lamp on the basis of thirty-seven steps, wherein the energy intensity is 800mJ/cm, and the drying time is 2s;
and (3) finally, coating a protective film, and packaging to obtain the non-autoclaved cement fiberboard UV matte solid-color coated board.
The selected base material is a steam-curing-free fiber cement board, 100% of the base material does not contain asbestos, formaldehyde or radioactive substances, and the base material has the mildew-proof and antibacterial effects; the UV paint selected by the invention is a high-solid-content product, almost does not contain VOC, and belongs to typical low-carbon environment-friendly materials; in the embodiment, the matte varnish comprises 0.5% of mildew-proof antibacterial agent Tao Shiluo ROCIMA342 produced by Harsi, and has mildew-proof antibacterial effect.
Example 2
The invention provides a low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process, which sequentially comprises a penetrating primer layer, a putty layer, a sanding primer layer, an attaching primer layer, a high-coverage primer layer, a solid-color primer layer, a second sanding primer layer and a matte finishing paint layer from inside to outside, wherein the penetrating primer layer is a sponge roller coating penetrating primer, and the coating amount is 45-55g/m 2 The permeate primer layer was dried using 1 mercury lamp +1 crop lamp, with energy control at: UVA:250-350mJ/cm, UVV:400-500 mJ/cm;
the solid color primer layer comprises a first solid color primer layer, a second solid color primer layer and a third solid color primer layer from inside to outside, wherein the first solid color primer layer, the second solid color primer layer and the third solid color primer layer are all prepared by adopting a single-roller roll coater to coat the solid color primer, and the coating amount is 5-15g/m 2 ；
The first solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:300-400mJ/cm, UVV:800-1000 mJ/cm;
the second solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:300-400mJ/cm, UVV:400-500 mJ/cm;
the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:300-400mJ/cm, UVV:500-600 mJ/cm.
Specifically, the method comprises the following steps:
step one, feeding a non-autoclaved fiber cement board to a production line;
step two, lightly polishing the cement board in the step one by using a polishing wheel;
step three: carrying out first dust removal on the surface of the cement board treated in the second step;
step four, coating penetrating primer by a sponge roller on the basis of the step three, wherein the coating weight is 55g/m 2 ；
Step five, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of the step four, so that the paint film is semi-dried to form a penetrating primer layer penetrating into the substrate, wherein the energy is controlled as follows: UVA:350mJ/cm, UVV:500 mJ/cm;
step six, rolling high filling putty on the basis of the step five, wherein the coating weight is 35g/m 2 ；
Step seven, drying is carried out by adopting 1 mercury lamp and 1 gallium lamp on the basis of the step six, so that the paint film is completely dried to form a putty layer, wherein the energy is controlled as follows: UVA:350mJ/cm, UVV:500 mJ/cm;
step eight, turning over and continuing construction after finishing the step seven;
step nine, lightly polishing the steaming-free fiber cement board in the step eight by using a polishing wheel;
step ten: carrying out first dust removal on the surface of the steaming-free fiber cement board treated in the step nine;
step eleven, roll coating the penetrating primer with a sponge roller on the basis of the step ten, wherein the coating weight is 55g/m 2 ；
Step twelve, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of step eleven, so that the paint film is semi-dried to form a permeable primer layer which permeates into the substrate, wherein the energy is controlled as follows: UVA:350mJ/cm, UVV:500 mJ/cm;
in the step thirteen, the method comprises the steps of,coating high-filling putty with the coating weight of 35g/m by roller on the basis of the twelve steps 2 ；
Step fourteen, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of the step thirteenth to make the paint film semi-dry, wherein the energy is controlled as follows: UVA:350mJ/cm, UVV:500 mJ/cm;
fifteen, coating sanding primer on the fourteen putty layers by adopting a forward and reverse roller coating machine, wherein the coating amount is 45g/m 2 ；
Sixthly, drying by adopting a double-mercury lamp on the basis of fifteen steps to enable a paint film to be nine-dried, wherein the energy is controlled as follows: UVA:450mJ/cm, UVV:550 mJ/cm;
seventeenth, sanding and flattening the surface of the sanding primer layer by a sander;
eighteenth, dedusting the surface of the primer layer after sanding in seventeen;
nineteenth, the single roller adhesive force white primer is coated on the surface of the sanding primer layer, and the coating weight is 20g/m 2 ；
Step twenty, drying by adopting a three-mercury lamp on the basis of the step nineteenth to enable a paint film to be semi-dried to form an attached primer layer, wherein the energy is controlled at 800 mJ/cm;
step twenty-one, coating a high coverage white primer on the twenty-first primer layer with a single roll coater at a coating weight of 15g/m 2 ；
And twenty-two steps, namely drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-two steps to make the paint film semi-dry to form a high-coverage primer layer, wherein the energy is controlled as follows: UVA:400mJ/cm, UVV:500 mJ/cm;
twenty-third step, coating high coverage white primer on the twenty-second step primer layer by adopting a single-roller roll coater, wherein the coating amount is 15g/m 2 ；
Twenty four steps are adopted to dry on the basis of twenty three steps, 1 mercury lamp and 1 gallium lamp are adopted to enable a paint film to be semi-dry to form a high-coverage primer layer, and the energy is controlled in the following steps: UVA:400mJ/cm, UVV:500 mJ/cm;
twenty-five steps, coating solid color primer on the twenty-four primer layers in the step with a single-roller roll coater, wherein the coating amount is 15g/m 2 ；
Sixteenth, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-five steps to make the paint film semi-dry to form a first solid color primer layer, wherein the energy is controlled as follows: UVA:400mJ/cm, UVV:1000 mJ/cm;
twenty-seven steps, coating solid color primer on the twenty-sixteen primer layers by adopting a single-roller roll coater, wherein the coating amount is 15g/m 2 ；
And twenty-eight, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-seven, so that the paint film is semi-dried to form a second solid color primer layer, wherein the energy is controlled as follows: UVA:400mJ/cm, UVV:500 mJ/cm;
twenty-nine steps, coating solid color primer on the twenty-eight primer layer by adopting a single-roller roll coater, wherein the coating amount is 15g/m 2 ；
And step thirty, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-nine steps, and forming a third solid color primer layer by semi-drying a paint film, wherein the energy is controlled as follows: UVA:400mJ/cm, UVV:600 mJ/cm;
step thirty-one, coating sanding primer on the thirty-primer layer by adopting a forward and reverse roller rolling coater, wherein the coating amount is 50g/m 2 ；
And step thirty-two, wherein a gallium lamp and a double-mercury lamp are adopted to carry out ultraviolet full drying on the basis of the step thirty-one to form a second sanding primer layer, and the energy is controlled as follows: 400 mJ/cm;
thirty-three steps, sanding the surface of the second sanding primer layer by using 400# +600 #;
a step thirty-fourth, namely dedusting the surface of the second sanding primer layer treated in the step thirty-third;
thirty-five steps are carried out, and a forward and reverse roller rolling coater is adopted to coat UV matte varnish on the surface of the thirty-four second sanding primer layer, wherein the coating amount is 15g/m 2 ；
Thirty-six steps, ultraviolet semi-drying is carried out by using a gallium lamp and a double mercury lamp on the basis of thirty-five steps, and the energy is controlled as follows: 400 mJ/cm;
seventy-seven steps, wherein a single roller is adopted on the surface of the thirty-six matte varnish layerThe roller coater is coated with UV matte varnish with the coating weight of 15g/m 2 ；
Performing ultraviolet full drying by using a gallium lamp and a double-mercury lamp on the basis of thirty-seven steps, wherein the energy intensity is 1200mJ/cm, and the drying time is 2s;
and (3) finally, coating a protective film, and packaging to obtain the non-autoclaved cement fiberboard UV matte solid-color coated board.
The selected base material is a steam-curing-free fiber cement board, 100% of the base material does not contain asbestos, formaldehyde or radioactive substances, and the base material has the mildew-proof and antibacterial effects; the UV paint selected by the invention is a high-solid-content product, almost does not contain VOC, and belongs to typical low-carbon environment-friendly materials; in the embodiment, the matte varnish comprises 1.5% of mildew-proof antibacterial agent Tao Shiluo ROCIMA342 produced by Harsi, and has mildew-proof antibacterial effect.
Example 3
The invention provides a low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process, which sequentially comprises a penetrating primer layer, a putty layer, a sanding primer layer, an attaching primer layer, a high-coverage primer layer, a solid-color primer layer, a second sanding primer layer and a matte finishing paint layer from inside to outside, wherein the penetrating primer layer is a sponge roller coating penetrating primer, and the coating amount is 45-55g/m 2 The permeate primer layer was dried using 1 mercury lamp +1 crop lamp, with energy control at: UVA:250-350mJ/cm, UVV:400-500 mJ/cm;
the solid color primer layer comprises a first solid color primer layer, a second solid color primer layer and a third solid color primer layer from inside to outside, wherein the first solid color primer layer, the second solid color primer layer and the third solid color primer layer are all prepared by adopting a single-roller roll coater to coat the solid color primer, and the coating amount is 5-15g/m 2 ；
The first solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:300-400mJ/cm, UVV:800-1000 mJ/cm;
the second solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:300-400mJ/cm, UVV:400-500 mJ/cm;
the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:300-400mJ/cm, UVV:500-600 mJ/cm.
Specifically, the method comprises the following steps:
step one, feeding a non-autoclaved fiber cement board to a production line;
step two, lightly polishing the cement board in the step one by using a polishing wheel;
step three: carrying out first dust removal on the surface of the cement board treated in the second step;
step four, coating penetrating primer by a sponge roller on the basis of the step three, wherein the coating amount is 50g/m 2 ；
Step five, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of the step four, so that the paint film is semi-dried to form a penetrating primer layer penetrating into the substrate, wherein the energy is controlled as follows: UVA:300mJ/cm, UVV:450 mJ/cm;
step six, rolling high filling putty on the basis of the step five, wherein the coating weight is 30g/m 2 ；
Step seven, drying is carried out by adopting 1 mercury lamp and 1 gallium lamp on the basis of the step six, so that the paint film is completely dried to form a putty layer, wherein the energy is controlled as follows: UVA:300mJ/cm, UVV:450 mJ/cm;
step eight, turning over and continuing construction after finishing the step seven;
step nine, lightly polishing the steaming-free fiber cement board in the step eight by using a polishing wheel;
step ten: carrying out first dust removal on the surface of the steaming-free fiber cement board treated in the step nine;
step eleven, roll coating the penetrating primer with a sponge roller on the basis of the step ten, wherein the coating weight is 50g/m 2 ；
Step twelve, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of step eleven, so that the paint film is semi-dried to form a permeable primer layer which permeates into the substrate, wherein the energy is controlled as follows: UVA:300mJ/cm, UVV:450 mJ/cm;
step thirteen, coating high filling putty with the coating weight of 30g/m on the basis of step twelve 2 ；
Step fourteen, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of the step thirteenth to make the paint film semi-dry, wherein the energy is controlled as follows: UVA:300mJ/cm, UVV:450 mJ/cm;
fifteen, coating sanding primer on the fourteen putty layers by adopting a forward and reverse roller coating machine, wherein the coating amount is 40g/m 2 ；
Sixthly, drying by adopting a double-mercury lamp on the basis of fifteen steps to enable a paint film to be nine-dried, wherein the energy is controlled as follows: UVA:400mJ/cm, UVV:500 mJ/cm;
seventeenth, sanding and flattening the surface of the sanding primer layer by a sander;
eighteenth, dedusting the surface of the primer layer after sanding in seventeen;
nineteenth, the single roller adhesive force white primer is coated on the surface of the sanding primer layer, and the coating weight is 15g/m 2 ；
Step twenty, drying by adopting a three-mercury lamp on the basis of the step nineteenth to enable a paint film to be semi-dried to form an attached primer layer, wherein the energy is controlled at 700 mJ/cm;
step twenty-one, coating a high coverage white primer on the twenty-first primer layer with a single roll coater at a coating weight of 10g/m 2 ；
And twenty-two steps, namely drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-two steps to make the paint film semi-dry to form a high-coverage primer layer, wherein the energy is controlled as follows: UVA:350mJ/cm, UVV:450 mJ/cm;
twenty-third step, coating high coverage white primer on the twenty-second step primer layer by adopting a single-roller roll coater, wherein the coating amount is 10g/m 2 ；
Twenty four steps are adopted to dry on the basis of twenty three steps, 1 mercury lamp and 1 gallium lamp are adopted to enable a paint film to be semi-dry to form a high-coverage primer layer, and the energy is controlled in the following steps: UVA:350mJ/cm, UVV:450 mJ/cm;
twenty-five steps, coating solid color primer on the twenty-four primer layers in the step by adopting a single-roller roll coater, wherein the coating amount is 10g/m 2 ；
Sixteenth, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-five steps to make the paint film semi-dry to form a first solid color primer layer, wherein the energy is controlled as follows: UVA:350mJ/cm, UVV:900 mJ/cm;
twenty-seven steps, coating solid color primer on the twenty-sixteen primer layers by adopting a single-roller roll coater, wherein the coating amount is 10g/m 2 ；
And twenty-eight, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-seven, so that the paint film is semi-dried to form a second solid color primer layer, wherein the energy is controlled as follows: UVA:350mJ/cm, UVV:450 mJ/cm;
twenty-nine steps, coating solid color primer on the twenty-eight primer layer by adopting a single-roller roll coater, wherein the coating amount is 10g/m 2 ；
And step thirty, drying by adopting 1 mercury lamp and 1 gallium lamp on the basis of twenty-nine steps, and forming a third solid color primer layer by semi-drying a paint film, wherein the energy is controlled as follows: UVA:350mJ/cm, UVV:550 mJ/cm;
step thirty-one, coating sanding primer on the thirty-primer layer by adopting a forward and reverse roller coating machine, wherein the coating amount is 40g/m 2 ；
And step thirty-two, wherein a gallium lamp and a double-mercury lamp are adopted to carry out ultraviolet full drying on the basis of the step thirty-one to form a second sanding primer layer, and the energy is controlled as follows: 350 mJ/cm;
thirty-three steps, sanding the surface of the second sanding primer layer by using 400# +600 #;
a step thirty-fourth, namely dedusting the surface of the second sanding primer layer treated in the step thirty-third;
thirty-five steps are carried out, and a forward and reverse roller rolling coater is adopted to coat UV matte varnish on the surface of the thirty-four second sanding primer layer, wherein the coating amount is 10g/m 2 ；
Thirty-six steps, ultraviolet semi-drying is carried out by using a gallium lamp and a double mercury lamp on the basis of thirty-five steps, and the energy is controlled as follows: 350 mJ/cm;
seventy-seven steps, coating UV matte varnish on the surface of the thirty-six matte varnish layer in the step by adopting a single-roller coater, wherein the coating amount is 10g/m 2 ；
Performing ultraviolet full drying by using a gallium lamp and a double-mercury lamp on the basis of thirty-seven steps, wherein the energy intensity is 1000mJ/cm, and the drying time is 2s;
and (3) finally, coating a protective film, and packaging to obtain the non-autoclaved cement fiberboard UV matte solid-color coated board.
The selected base material is a steam-curing-free fiber cement board, 100% of the base material does not contain asbestos, formaldehyde or radioactive substances, and the base material has the mildew-proof and antibacterial effects; the UV paint selected by the invention is a high-solid-content product, almost does not contain VOC, and belongs to typical low-carbon environment-friendly materials; in the embodiment, the matte varnish comprises 1% of mildew-proof antibacterial agent Tao Shiluo ROCIMA342 produced by Hasi, and has mildew-proof antibacterial effect.
Example 4
This embodiment differs from embodiment 3 in that:
the first solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:350mJ/cm, UVV:850 mJ/cm;
the second solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:350mJ/cm, UVV:425 mJ/cm;
the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:350mJ/cm, UVV:525 mJ/cm.
Example 5
This embodiment differs from embodiment 3 in that:
the first solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:350mJ/cm, UVV:950 mJ/cm;
the second solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:350mJ/cm, UVV:475 mJ/cm;
the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:350mJ/cm, UVV:575 mJ/cm.
Example 6
This embodiment differs from embodiment 3 in that:
the first solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:400mJ/cm, UVV:950 mJ/cm;
the second solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:400mJ/cm, UVV:475 mJ/cm;
the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:400mJ/cm, UVV:575 mJ/cm.
Comparative example 1
The difference between this comparative example and example 3 is that: the permeable primer layer was roll coated using a non-sponge roll.
Comparative example 2
The difference between this comparative example and example 3 is that:
the first solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:350mJ/cm, UVV:1100 mJ/cm;
the second solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:350mJ/cm, UVV:600 mJ/cm;
the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:350mJ/cm, UVV:700 mJ/cm.
Comparative example 3
The difference between this comparative example and example 3 is that:
the first solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:350mJ/cm, UVV:800 mJ/cm;
the second solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:350mJ/cm, UVV:800 mJ/cm;
the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:350mJ/cm, UVV:800 mJ/cm.
Comparative example 4
The difference between this comparative example and example 3 is that:
the first solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:350mJ/cm, UVV:600 mJ/cm;
the second solid color primer layer was dried using 1 mercury lamp +1 crop lamp, wherein the energy was controlled at: UVA:350mJ/cm, UVV:600 mJ/cm;
the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:350mJ/cm, UVV:600 mJ/cm.
Examples 1 to 6 and comparative examples 1 to 4 were evaluated to obtain Table 1
TABLE 1
As is clear from Table 1, the UV matte solid-color coated sheets prepared in examples 1 to 6 had the effect of not stripping paint and not changing color.
Example 3 is different from comparative example 1 in that whether the primer was impregnated with the sponge roll coating, and it is known from the analysis of table 1 that the paint film coated on the substrate was thicker due to the characteristics of the sponge roll when the primer was impregnated with the sponge roll coating, which promoted more efficient penetration of the paint into the sheet, and the paint bond with the upper layer was very good while forming an effective moisture barrier layer, which was better in preventing paint removal.
Example 3 is different from comparative examples 2, 3 and 4 in that the curing energy of the three-layer solid color primer in comparative example is different, and as is clear from comparative example 2, when the curing energy of the three-layer solid color primer is excessively large, a problem of discoloration occurs; as is clear from comparative example 3, when the curing energy of the three solid color primer layers is the same as that of the first solid color primer layer, the color stabilizing effect is not very good, and the color change problem in the product is caused; as is clear from comparative example 4, when the curing energy of the three solid color primer layers is the same as that of the third solid color primer layer, the color stabilizing effect cannot be well achieved, and the color change problem in the product is caused. The present invention thus selects the range of solid color primer layer curing energies such that the first solid color primer layer curing energy is controlled to be: UVA:300-400mJ/cm, UVV:800-1000 mJ/cm; the curing energy of the second solid color primer layer is controlled as follows: UVA:300-400mJ/cm, UVV:400-500 mJ/cm; the curing energy of the third solid color primer layer is controlled as follows: UVA:300-400mJ/cm, UVV:500-600 mJ/cm.
The foregoing is a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention and are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process sequentially comprises a penetrating primer layer, a putty layer, a sanding primer layer, an adhesion primer layer, a high-coverage primer layer, a solid-color primer layer, a second sanding primer layer and a matte finishing paint layer from inside to outside,
the penetrating primer layer is a sponge roller coating penetrating primer, and the coating weight is 45-55g/m 2 The permeate primer layer was dried using 1 mercury lamp +1 crop lamp, with energy control at: UVA:250-350mJ/cm, UVV:400-500 mJ/cm;
the solid color primer layer comprises a first solid color primer layer, a second solid color primer layer and a third solid color primer layer from inside to outside, wherein the solid color primer layer is coated by a single-roller roll coater, and the coating amount is 5-15g/m 2 ；
The first solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, wherein the energy is controlled in the following way: UVA:300-400mJ/cm, UVV:800-1000 mJ/cm;
the second solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, wherein the energy is controlled in the following way: UVA:300-400mJ/cm, UVV:400-500 mJ/cm;
and the third solid color primer layer is dried by adopting 1 mercury lamp and 1 gallium lamp, and the energy is controlled in the following way: UVA:300-400mJ/cm, UVV:500-600 mJ/cm.
2. The low-carbon and environment-friendly steaming-free fiber cement board UV matte solid-color coating process according to claim 1, wherein the greasy is characterized in thatThe sub-layer is roller-coated high-filling putty, and the coating weight is 25-35g/m 2 The putty layer adopts 1 mercury lamp +1 gallium lamp to dry, and wherein energy control is at: UVA:250-350mJ/cm, UVV:400-500 mJ/cm.
3. The low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process according to claim 2, wherein the sanding primer layer is a sanding primer coated by a forward and reverse roller coater, and the coating amount is 35-45g/m 2 The sanding primer layer is dried by a double-mercury lamp, wherein the energy is controlled in the following way: UVA:350-450mJ/cm, UVV:450-550 mJ/cm.
4. The low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process according to claim 3, wherein the adhesion primer layer is a single-roller adhesion white primer, and the coating amount is 10-20g/m 2 The adhesion primer layer is dried by a three-mercury lamp, wherein the energy is controlled to be 600-800 mJ/cm.
5. The low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process according to claim 4, wherein the high-coverage primer layer is a single-roll roller coater coated with high-coverage white primer, and the coating amount is 5-15g/m 2 The high hiding primer layer was dried using 1 mercury lamp +1 crop lamp with energy control at: UVA:300-400mJ/cm, UVV:400-500 mJ/cm.
6. The low-carbon, environmentally friendly, non-autoclaved fiber cement board UV matte solid color coating process of claim 5 wherein the steps of coating and drying the high-hiding primer layer are repeated twice.
7. The low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process according to claim 6, wherein the second sanding primer layer is a sanding primer coated by a forward and reverse roller coater, and the coating amount is 30-50g/m 2 The second sanding primer layer adopts the use of oneThe gallium lamp and the double mercury lamp are subjected to ultraviolet full drying to form a sanding primer layer, and the energy is controlled in the following way: 300-400 mJ/cm.
8. The low-carbon environment-friendly steaming-free fiber cement board UV matte solid-color coating process according to claim 7, wherein the penetrating primer layer and the putty layer are further provided with a putty layer and a penetrating primer layer which are arranged from inside to outside.
9. The low-carbon and environment-friendly steaming-free fiber cement board UV matte solid-color coating process according to claim 8, wherein the matte finishing paint layer comprises 0.5-1.5 parts of mildew-proof antibacterial agent per 100 parts by weight.
10. The low-carbon and environment-friendly steaming-free fiber cement board UV matte solid-color coating process according to claim 9, wherein the mildew-proof antibacterial agent is ROCIMA342 produced by Tao Shiluo Moghas.
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