TWI667151B - Colorful fibric board structure and manufacturing method thereof - Google Patents

Abstract

The invention provides a painted fiberboard structure and a manufacturing method thereof. The structure of the painted fiberboard is composed of a multi-layer structure, so that it can have the advantages of being strong and bright and bright at the same time. In addition, the manufacturing method of the above-mentioned painted fiberboard structure can effectively solve the problems encountered in the surface treatment of the conventional fiberboard.

Description

Painted fiberboard structure and manufacturing method thereof

The invention relates to a painted fiberboard structure and a manufacturing method thereof, in particular to a painted fiberboard structure which can be distributed through a multi-layer structure, enhances color expression and material strength, and a manufacturing method thereof.

In the construction industry, decoration is an important part of the planning of indoor space. In the decoration performance of an indoor space, the building materials as raw materials often determine the performance of the overall interior decoration.

In recent years, countries have begun to use many safer building materials based on various needs to reduce the risk of disasters in buildings. Among them, a very important topic is the use of fire-resistant building materials, which can greatly delay the time of flame spread and the depth of combustion.

In view of the issue of the fire-resistant building, many types of fiberboards have shown a sudden emergence. Therefore, how to create a fiberboard that is both aesthetic and fire-resistant is an important issue in the issue of interior decoration.

The advantages of fiberboard in building materials are mainly light weight, easy to shape and provide high ease of installation. In response to this demand, the traditional technology for manufacturing colored fiberboard is mainly achieved by means of skinning. But this approach has many shortcomings. Because most fiberboards are entangled, Extrusion or the like is formed, except that the surface has a plurality of raised fibers, and the fibers are peeled off. Once this happens, it may cause the peeling of the painted skin and other conditions, affecting the appearance.

Moreover, most fiberboards are inherently fragile. In the process of handling or decorating, it is quite easy to cause cracks due to collision at a specific angle. Therefore, there is still a need for a building material that can be both aesthetically pleasing and robust in fireproof building materials.

In order to solve the problems mentioned in the prior art, the present invention provides a painted fiberboard structure and a method of fabricating the same. Wherein, the painted fiberboard structure mainly comprises a fiber substrate, an adhesive layer, a painted layer and at least one protective layer.

Wherein the fiber substrate comprises at least one convex portion, the adhesive layer is formed on the fiber substrate, the thickness of the adhesive layer is higher than all the at least one convex portion, and the surface of the adhesive layer is a flat surface, the painted layer Formed on the flat surface. And the at least one protective layer is formed on the painted layer.

The method for manufacturing the painted fiberboard structure comprises the steps (a) to (e). First, in step (a), an adhesive layer is coated on a fiber substrate such that the adhesive layer is higher than at least one convex portion on the fiber substrate. Next, step (b) is performed to harden the adhesive layer by a hardening means.

Then, in step (c), the adhesive layer is ground to form a flat surface on the surface of the adhesive layer, and then step (d) is performed to coat a coloring layer on the adhesive layer. Finally, step (e) is performed to coat at least one protective layer on the painted layer.

The above summary of the present invention is intended to provide a basic description of the various aspects and features of the invention. The summary of the invention is not a detailed description of the invention, and therefore its purpose is not specifically recited The key or important elements of the present invention are not intended to limit the scope of the present invention, but only a few concepts of the present invention are presented in a concise manner.

10‧‧‧Stained fiberboard structure

100‧‧‧Fiber substrate

101‧‧‧ convex

200‧‧‧Next layer

201‧‧‧flat surface

300‧‧‧Bridge

400‧‧‧ Painted layer

400a‧‧‧Relief Department

500‧‧‧protection layer

500a‧‧‧ protective layer

500b‧‧‧ protective layer

500c‧‧‧ protective layer

(a)~(e)‧‧‧ steps

1 is a schematic view of an embodiment of the present invention.

Figure 2 is a schematic illustration of another embodiment of the invention.

Figure 3 is a schematic illustration of yet another embodiment of the present invention.

Figure 4 is a schematic illustration of still another embodiment of the present invention.

Fig. 5 is a flow chart showing the manufacturing method of the structure of the painted fiberboard of the present invention.

6 to 7 are schematic views showing the formation of a flat surface on the surface of the adhesive layer of the present invention.

In order to understand the technical features and practical effects of the present invention, and can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiment as shown in the following figure: First, please refer to FIG. A schematic diagram of an embodiment of the invention. As shown in FIG. 1 , the painted fiberboard structure 10 of the present embodiment includes a fiber substrate 100, an adhesive layer 200, a painted layer 400, and at least one protective layer 500.

The fiber substrate 100 includes at least one convex portion 101, and the at least one convex portion 101 is substantially generated by the characteristics of the fiber substrate 100. The main fiber substrate 100 may be a calcium silicate fiber board, a plastic fiber board, a carbon fiber board, a cement fiber board or a fiberglass board. In the manufacture of the fiberboards, a large amount of powder or different proportions of artificial, wood or plant fibers are mixed.

Further, although the present embodiment can be applied to the fiber board of the above type, the sheet for the fireproof function of the fiber board is most prominent with the calcium silicate board. Therefore, the following embodiments will be described with calcium silicate fiberboard as an implementation basis.

When the fiber substrate 100 is a calcium silicate fiberboard, the calcium silicate fiberboard is mainly composed of calcium citrate mixed quartz powder, diatomaceous earth, cement, lime, pulp, glass fiber, etc., after pulping, molding, steaming, surface Sanding and other procedures. Therefore, a large amount of fibrous unevenness is generated on the surface of the formed calcium silicate fiberboard, and moreover, a part of the powder which is not formed into the fiber substrate 100, such as calcium silicate powder or quartz powder, is more likely. Therefore, the powder and the uneven fibers are the cause of the formation of at least one convex portion 101.

The subsequent layer 200 is formed on the fiber substrate 100, the thickness of the adhesive layer 200 is higher than all of the at least one convex portion 101, and the surface of the subsequent layer 200 is the flat surface 201. In this embodiment, the reason why the thickness of the subsequent layer 200 is applied higher than all of the at least one convex portion 101 is the demand for subsequent processing.

If the thickness of the adhesive layer 200 is not higher than the at least one convex portion 101, it is likely to cause the formation of the painted layer 400 to be incomplete or mottled. The surface state contacted by the painted layer 400 affects its adhesion ability. Under this condition, if the surface of the fiber substrate 100 is uneven or has powder residue, the adhesion ability of the painted layer 400 will be greatly reduced.

Therefore, the formation and processing of the subsequent layer 200 can effectively prevent the formation of the above-mentioned colored layer 400 from being incomplete or mottled.

As for the coloring layer 400 of the present embodiment, it is mainly formed on the flat surface 201. More precisely, the coloring layer 400 can be digitally printed using a digital printer. In this embodiment, the bridging agent 300 is further coated between the adhesive layer 200 and the painted layer 400 as an attachment medium for the painted layer 400.

The ink type selected for the color layer 400 may be an aqueous ink, an oily ink, a non-permeable ink or a permeable ink. Among them, the embodiment is preferably an oil-based ink.

Therefore, the material of the bridging agent 300 of the present embodiment can be adjusted according to the materials of the color layer 400 and the layer 200. The invention is not limited, and only the bridge layer 400 can be directly and firmly attached to the layer 200. Agent 300 should be within the scope of the invention. At least one protective layer 500 is formed on the painted layer 400.

In addition, in this embodiment, the fiber substrate 100 includes four sides, and the protective layer 500 or the adhesive layer 200 can completely cover the four sides of the fiber substrate 100. In this way, the painted fiberboard structure 10 of the present embodiment can be more robust, preventing damage or cracking of the painted fiberboard structure 10 due to collision during transportation or handling.

In this embodiment, the material of the adhesive layer 200 or the protective layer 500 may be a polyurethane varnish, a natural lacquer (Lacquer) or an epoxy resin (Epoxy). More precisely, in a possible implementation, the adhesive layer 200 or the protective layer 500 further comprises a hardener, a bridging agent or a combination thereof; and in the embodiment of FIG. 1, the adhesive layer 200 and the painted layer 400 The bridging agent 300 is further coated between. The adhesive layer 200 and the bridging agent 300 of the embodiment can be implemented by shower coating, digital printing, screen printing, through mask spraying, flat coating, etc., and the invention is not limited thereto.

In the treatment of the adhesive layer 200 and the protective layer 500, since the step of hardening is involved, in the case where the adhesive layer 500 or the protective layer 500 contains a hardener, the hardener may be selected as an ultraviolet light hardener or a heat hardener according to requirements. The invention is not limited.

In view of the fact that the present invention is primarily directed to painting related processing, the present invention provides a more variety of embodiments in the application of various patterns. Please also refer to Figure 2~4. 2 is another embodiment of the present invention 3 is a schematic view of still another embodiment of the present invention; and FIG. 4 is a schematic view of still another embodiment of the present invention.

As shown in FIG. 2, in the embodiment of FIG. 2, the protective layer 500 may be coated with a protective layer 500a. The coating method of the protective layer 500a can be achieved by shower coating, digital printing, screen printing, through mask spraying, flat coating by a doctor blade, and the like. In the embodiment of FIG. 2, this allows the protective layer 500 and the protective layer 500a to achieve multiple levels of variation. For example, if the protective layer 500 is made of a polyurethane varnish, a natural lacquer (Lacquer) or an epoxy resin (Epoxy) which is a glossy surface after curing, the protective layer 500a may be selected after hardening or atomizing or opaque surface urethane (Polyurethane). , natural tree paint (Lacquer) or epoxy resin (Epoxy), the invention is not limited.

The physical properties of the optical effect of the cured polyurethane, natural lacquer (Lacquer) or epoxy resin (Epoxy) depend mainly on the composition and proportion of the additive. The actual proportion of ingredients should be selected according to the needs of the manufacturer, and the invention is not limited.

Next, as shown in FIG. 3, in the embodiment of FIG. 3, after the layer 500 to be protected is hardened, a recessed pattern is imprinted on the surface by physical (such as mechanical engraving or laser engraving, etc.). The protective layer 500b is applied to the concave pattern by the above-mentioned shower coating, digital printing, screen printing, through mask spraying, flat coating, etc., to produce a flat but different protective layer 500 and protective layer 500b. .

As shown in FIG. 4, in the embodiment of FIG. 4, the painted layer 400 further includes at least one relief portion 400a. In the embodiment of FIG. 4, the relief portion 400a may be a multi-layer coated ink to produce a three-dimensional relief effect on the pattern formed by the painted layer 400. Based on this requirement, the embodiment of FIG. 4 can be seen that the protective layer 500 is swelled together with the embossed portion 400a, and the protective layer 500 is treated in the embodiment of FIG. In this case, the protective layer 500c can be further formed on the protective layer 500 of FIG. 4 to produce a more layered and rich pattern effect.

Of course, in other possible implementations, the presence of the embossed portion 400a can produce the self-branching agent 300 or the subsequent layer 200 depending on different visual needs. The formation method can also be achieved by multi-layer coating, thick coating, shower coating, digital printing, screen printing, through mask spraying, flat coating by blade.

Referring to FIG. 5 to FIG. 7 at the same time, FIG. 5 is a flow chart of a method for fabricating the structure of the colored fiberboard of the present invention; and FIGS. 6-7 are schematic views showing the surface of the adhesive layer of the present invention.

As shown in FIG. 5, a method for fabricating a painted fiberboard structure of the present invention is shown in FIG. 5. First, step (a) is performed to apply an adhesive layer on a fiber substrate such that the adhesive layer is higher than at least the fiber substrate. a convex part.

In the step (a), for the adhesive layer 200, there is a need for the adhesive layer 200 to have a higher height (or thickness) than at least one of the projections 101 on the fiber substrate 100. The situation after the initial coating of the subsequent layer 200 may be as shown in Fig. 6, and the subsequent layer 200 produces an uneven surface due to the influence of at least one convex portion 101.

Next, in this case, step (b) is performed to harden the adhesive layer by a hardening means. The hardening means in the step (b) may be adjusted to ultraviolet light hardening or heat hardening by using an additive such as a hardener in the adhesive layer 200. After the adhesive layer 200 is hardened, the step (c) is further performed, and the adhesive layer is ground to form a flat surface on the surface of the adhesive layer.

The grinding method in the step (c) can be ground by sandpaper, water sandpaper or a planer, and the invention is not limited thereto. After the completion of the step (c), in some possible implementations (such as the embodiment shown in FIGS. 1 to 4), the step (c1) may be further performed to apply a bridging agent to the flat surface. .

After completion, step (d) is performed to coat a color layer on the adhesive layer. The color and pattern of the painted layer 400 can be freely coated as desired. Alternatively, the relief portion 400a can be formed in the painted layer 400 as in the embodiment shown in FIG. Finally, after the finishing layer 400 is completed, step (e) is performed, and at least one protective layer is coated on the painted layer.

The configuration of the protective layer 500 can be performed with reference to the implementations described in the embodiments of FIGS. 2 to 4, so that the protective layer 500 can be freely combined and changed to produce a diverse pattern presentation mode. In addition, the protective layer in the embodiment has the functions of waterproofing, acid and alkali resistance, scratch resistance and ultraviolet resistance, and the pattern presented by the coloring layer 400 is always vivid and does not fade.

However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications according to the scope and description of the present invention remain It is within the scope of the present invention.

Claims (10)

A painted fiberboard structure comprising: a calcium silicate fiberboard comprising at least one protrusion, wherein the protrusion is a fibrous structure on the surface of the calcium silicate fiberboard; and an adhesive layer is formed on the fiber substrate, The thickness of the layer is higher than each of the at least one convex portion, and the surface of the adhesive layer is a flat surface; a colored layer is formed on the flat surface; and at least one protective layer is formed on the painted layer. The painted fiberboard structure of claim 1, wherein the adhesive layer or the protective layer is a polyurethane varnish, a natural lacquer (Lacquer) or an epoxy resin (Epoxy). The painted fiberboard structure of claim 2, wherein a coating agent is further coated between the adhesive layer and the painted layer. The painted fiberboard structure of claim 2, wherein the adhesive layer or the protective layer further comprises a hardener, a bridging agent or a combination thereof. The painted fiberboard structure of claim 4, wherein the hardener is an ultraviolet light hardener or a heat hardener. The painted fiberboard structure of claim 4, wherein the painted layer, the adhesive layer or the bridging agent further comprises at least one relief portion. The painted fiberboard structure of claim 1, wherein the fibrous substrate comprises four sides, and the protective layer or the adhesive layer completely covers the four sides. A method for manufacturing a painted fiberboard structure, comprising: (a) coating an adhesive layer on the calcium silicate fiber sheet having at least one convex portion, such that the adhesive layer is higher than each of the at least one convex portion on the calcium silicate fiber plate, wherein the convex portion is the ridge a fibrous structure on the surface of the calcium silicate fiberboard; (b) hardening the adhesive layer by a hardening means; (c) grinding the adhesive layer to form a flat surface on the surface of the adhesive layer; (d) coating a painted surface Layered on the flat surface of the adhesive layer; and (e) coating at least one protective layer over the painted layer. The method for fabricating a painted fiberboard structure according to claim 8, wherein the hardening means is ultraviolet light hardening or heat hardening. The method for fabricating a textured fiberboard structure according to claim 8, wherein the step (c) further comprises the step (c1) of applying a bridging agent to the flat surface.