TWI813497B - Curved wood furniture composite board and manufacturing method thereof - Google Patents

Abstract

A curved wood furniture composite board comprises a core material layer and two surface material layers respectively attached to two opposite outer surfaces of said core material layer. Said core material layer includes a plurality of stacked and bonded wood sheets. Each surface material layer includes a melamine impregnated cotton paper, a melamine impregnated kraft paper, a melamine impregnated cotton paper, a melamine impregnated wood grain paper and a antimicrobial -containing melamine impregnated cotton paper that are superimposed and bonded on the outer surface of the corresponding core material layer in sequence. The invention also provides a manufacturing method for said curved wood furniture composite board. Said curved wood furniture composite board has the appearance of flat, smooth and similar to wood furniture, and also has sufficient hardness and is resistant to scratches and abrasion.

Description

Bent wood furniture composite board and its manufacturing method

The present invention relates to a layered product and a manufacturing method thereof, in particular to a bentwood furniture composite panel and a manufacturing method thereof.

The Republic of China Public Patent TW 200700206A discloses a bent wood product, which includes a base layer made of seven stacked log flakes, two fiber composite boards arranged on the surface of the base layer and made of recycled wood, and two fiber composite boards respectively affixed to the base layer. Paper placed on the surface of the fiber composite boards, and two protective layers respectively formed on the surface of the paper by UV transparent paint. Among them, the paper and the fiber composite board are bonded with heat-resistant glue, and the paper is copper paper with patterns and colors.

The above-mentioned patent also discloses the molding method of the above-mentioned bent wood products, which includes the following steps: coating the at least one fiber composite board with heat-resistant glue, pasting at least one paper on the at least one fiber composite board with the heat-resistant glue and waiting to be air-dried. , apply UV transparent paint on the at least one paper to form a protective layer, then stack several raw wood sheets and completed stickers with the UV-painted fiber composite board, and apply glue between the two. Then press and heat them to combine and bend them to form a curved wooden body. Then, the curved wooden body is cut into the required shape. Finally, the cut curved wooden body is sprayed with varnish.

The first object of the present invention is to provide a novel bentwood furniture composite panel.

Therefore, the bentwood furniture composite panel of the present invention includes a core material layer and two surface material layers respectively attached to two opposite outer surfaces of the core material layer. The core material layer includes a plurality of overlapping and bonded layers. Wood pieces, each surface material layer includes, in order from the outer surface of the corresponding core material layer, one piece of melamine-impregnated tissue paper, one piece of melamine-impregnated kraft paper, one piece of melamine-impregnated tissue paper, and one piece of melamine-impregnated tissue paper that are stacked and bonded to each other. Melamine-impregnated wood grain paper and a piece of melamine-impregnated tissue paper containing an antibacterial agent. Each piece of melamine-impregnated tissue paper containing an antibacterial agent is made by impregnating a piece of tissue paper with Melamine antibacterial glue and drying it. It is obtained, and the Melamine antibacterial glue for tissue paper has antibacterial agents.

The second object of the present invention is to provide a novel method for manufacturing bentwood furniture composite panels.

Therefore, the method for manufacturing bentwood furniture composite panels of the present invention includes the following steps: (a). Apply adhesive glue to the surfaces of multiple wood pieces, and stack the wood pieces to form a core material layer; (b). Layer one piece of melamine-impregnated tissue paper, one piece of melamine-impregnated kraft paper, one piece of melamine-impregnated tissue paper, one piece of melamine-impregnated wood grain paper and one piece of paper containing The melamine-impregnated tissue paper containing the antibacterial agent is used as the surface material layer to obtain a piece to be pressed. Each piece of the melamine-impregnated tissue paper containing the antibacterial agent is made by impregnating a piece of tissue paper with Melamine antibacterial glue and It is prepared by drying, and the Melamine antibacterial glue for tissue paper has an antibacterial agent; and (c). The parts to be pressed are hot-pressed, bonded and bent to form a curved wood furniture composite panel.

The effect of the present invention is that by using the melamine-impregnated tissue paper instead of applying adhesive in step (b), the manufacturing method of bentwood furniture composite panels of the present invention can avoid the sticking problem caused by applying adhesive in the past. Therefore, the manufacturing method of the present invention is more productive, and the melamine-impregnated tissue paper, the melamine-impregnated kraft paper, the melamine-impregnated wood grain paper and the antibacterial-containing melamine-impregnated tissue paper are stacked in a specific order to serve as the method. The surface material layer makes the bentwood furniture composite panel have a flat, smooth and similar appearance to the original wood furniture, and also has sufficient hardness, scratch resistance and wear resistance, especially through the melamine-impregnated cotton containing antibacterial agents The paper also makes the bentwood furniture composite panels antibacterial.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are designated with the same numbering.

The present invention will be further described with reference to the following embodiments, but it should be understood that the embodiments are only for illustrative purposes and should not be construed as limitations on the implementation of the present invention.

Referring to Figures 1 and 2, an embodiment of the bentwood furniture composite panel 1 of the present invention includes a core material layer 2 and two surface material layers 3 respectively attached to two opposite outer surfaces 20 of the core material layer 2. . The core material layer 2 includes a plurality of wood pieces 21 that are stacked and bonded to each other. Each surface material layer 3 sequentially includes a piece of melamine-impregnated tissue paper 31 and a piece of melamine-impregnated kraft paper 32 that are stacked and bonded to each other from the corresponding outer surface 20 of the core material layer 2 in a direction away from the outer surface 20 , a piece of melamine-impregnated tissue paper 31, a piece of melamine-impregnated wood grain paper 33 and a piece of melamine-impregnated tissue paper 34 containing antibacterial agents.

In this embodiment, the wood pieces 21 are bonded to each other through adhesive glue, which includes urea glue and melamine glue.

The melamine-impregnated tissue paper 31 is transparent and colorless. Each piece of melamine-impregnated tissue paper 31 is made by impregnating a piece of white tissue paper with melamine glue and drying it. The thickness of the tissue paper is 0.0435mm. ±0.0015mm and weight 21g/m ² .

Each piece of melamine-impregnated kraft paper 32 is made by impregnating a piece of kraft paper with melamine glue and drying it. The thickness of the kraft paper is 0.25mm±0.05mm and the weight is 150 g/m ² .

Each piece of melamine-impregnated wood grain paper 33 is made by impregnating a piece of wood grain paper with melamine glue and drying it. The thickness of the wood grain paper is 0.09mm±0.01mm and the weight is 70g/m. ² .

Each piece of melamine-impregnated tissue paper 34 containing antibacterial agent is made by impregnating a piece of white tissue paper with Melamine antibacterial glue and drying it. The thickness of the tissue paper is 0.0435mm±0.0015mm and the weight is 21g/m ² , the Melamine antibacterial glue for tissue paper has antibacterial agents.

An embodiment of the method for manufacturing the bentwood furniture composite panel 1 of the present invention includes the following steps: (a). Coating adhesive glue on the surfaces of multiple wood pieces 21 respectively, and stacking the wood pieces 21 to produce a Core material layer 2; (b). A piece of melamine-impregnated tissue paper 31, a piece of melamine-impregnated kraft paper 32, a piece of melamine-impregnated tissue paper 31, and a piece of melamine-impregnated tissue paper 31 are stacked in sequence from the two opposite outer surfaces 20 of the core material layer 2. A piece of melamine-impregnated wood grain paper 33 and a piece of melamine-impregnated tissue paper 34 containing antibacterial agents are used as the surface material layer 3, thereby obtaining a piece to be pressed; and (c). Hot pressing the piece to be pressed, so that The parts to be pressed are bonded and bent to form a curved wood furniture composite panel.

The adhesive glue used in step (a) of this embodiment includes urea glue and melamine glue. The adhesive glue is prepared by mixing the melamine glue and the urea glue, wherein the weight ratio of the melamine glue and the urea glue is 1:2.5. The urea glue can be commercially available, and the brand and model are not limited. The melamine glue is prepared through a preparation process including the following steps: (1). Mix 21 kg of water, 19 kg of parformaldehyde and 20 ml of liquid caustic soda with a concentration of 45% Obtain the first composition; (2). Heat the first composition to 83°C and mix it with 20 ml of liquid caustic soda with a concentration of 45% to obtain the second composition; (3). Heat the second composition After reaching 89°C, mix it with 35 kg of melamine resin to obtain the third composition; (4). Heat the third composition to greater than 110°C and then mix it with 84 kg of water to obtain the fourth composition. ; and (5). Continue stirring the fourth composition until it cools to 43°C to obtain the melamine glue.

The wood pieces 21 are for example, but not limited to, sheets made of logs. The types of logs may be, for example, beech, cypress, birch and other types of wood commonly used in making furniture. Referring to Figure 3, the wood grain directions of the wood pieces 21 used in this embodiment can be divided into first grains 211 and second grains 212. When stacking the wood pieces 21, the wood grains 21 will have the first grains 211. The wood pieces 21 and the wood pieces 21 with the second texture 212 are staggered and stacked, so that the produced bent wood furniture composite panel 1 has good mechanical strength. The number of the wood pieces 21 does not need to be particularly limited and can be flexibly adjusted according to the actual use of the bent wood furniture composite panel 1. In this embodiment, the number of the wood pieces 21 is 9 pieces, and the thickness of each wood piece 21 is 1.3 mm.

In this step (b), by respectively arranging the surface material layers 3 on the two opposite outer surfaces 20 of the core material layer 2, the surface material layers 3 can protect the core material layer 2 to prevent the core material layer from 2, the bentwood furniture composite panel 1 has sufficient hardness and is scratch and wear-resistant. Among them, since the wood grains of the wood pieces 21 in the core material layer 2 have different depths, the melamine-impregnated kraft paper 32 can be used to smooth the wood grains of different depths in the core material layer 2, making the fabricated The obtained bent wood furniture composite panel 1 has an outer surface that is smooth and beautiful. By arranging the melamine-impregnated wood grain paper 33 to imitate the wood grain and color of the original wood, the appearance and texture of the obtained bent wood furniture composite panel 1 are similar to the appearance and texture of the original wood furniture. By arranging the melamine-impregnated tissue papers 34 containing antibacterial agents, the outer surface of the prepared bentwood furniture composite panel 1 has an antibacterial function. Since the melamine-impregnated tissue paper 31 is not sticky when not heated, it will only become sticky due to heat during the hot pressing process in the subsequent step (c). Therefore, during the step (b), Providing the melamine-impregnated tissue paper 31 instead of applying adhesive can avoid the sticking problem caused by applying adhesive in the past. Moreover, the melamine-impregnated tissue papers 34 containing antibacterial agents used in this embodiment are basically transparent and colorless, so the melamine-impregnated tissue papers 34 containing antibacterial agents constituting the outer surface of the bent wood furniture composite panel 1 are not The texture and color of the melamine-impregnated wood grain paper 33 will be masked, and the outer surface of the prepared bent wood furniture composite panel 1 will also have a bright gloss.

In this embodiment, each piece of melamine-impregnated tissue paper 31 is made by impregnating a piece of white tissue paper with Melamine glue and then drying it. Among them, the thickness of the tissue paper is 0.0435mm±0.0015mm and the weight is 21g/m ² . The melamine glue for tissue paper is prepared through a preparation process including the following steps: (1). Mix 21 kilograms of water, 19 kilograms of parformaldehyde and 20 ml of liquid caustic soda with a concentration of 45% to obtain the third One composition; (2). Heat the first composition to 83°C and mix it with 20 ml of liquid caustic soda with a concentration of 45% to obtain a second composition; (3). Heat the second composition to 89 ℃ and then mixed with 35 kg of melamine resin to obtain the third composition; (4). Heat the third composition to 110 °C and then mix it with 21 kg of water to obtain the fourth composition; and (5). The fourth composition is continuously stirred until it is cooled to 43°C to obtain the melamine glue for tissue paper.

Each piece of melamine-impregnated kraft paper 32 is made by impregnating a piece of kraft paper with melamine glue and then drying it. Among them, the thickness of the kraft paper is 0.25mm±0.05mm and the weight is 150g/m ² . The melamine glue for kraft paper is prepared through a preparation process including the following steps: (1). Mix 21 kilograms of water, 19 kilograms of parformaldehyde and 20 ml of liquid caustic soda with a concentration of 45% to obtain the first Composition; (2). Heat the first composition to 83°C and mix it with 20 ml of liquid caustic soda with a concentration of 45% to obtain a second composition; (3). Heat the second composition to 89°C and then mixed with 35 kg of melamine resin to obtain a third composition; (4). Heat the third composition to 110°C and then mix it with 84 kg of water to obtain a fourth composition; and (5). The fourth composition was continuously stirred until it cooled to 43° C. to obtain the melamine glue for kraft paper.

Each piece of melamine impregnated wood grain paper 33 is made by impregnating a piece of wood grain paper with melamine glue and drying it. Among them, the thickness of the wood grain paper is 0.09mm±0.01mm and the weight is 70g/m ² . The melamine glue for wood grain paper is prepared through a preparation process including the following steps: (1). Mix 21 kilograms of water, 19 kilograms of parformaldehyde and 20 ml of liquid caustic soda with a concentration of 45%. The first composition; (2). Heat the first composition to 83°C and mix it with 20 ml of liquid caustic soda with a concentration of 45% to obtain the second composition; (3). Heat the second composition to 89°C and then mixed with 35 kg of melamine resin to obtain a third composition; (4). Heat the third composition to 110°C and then mix it with 73.5 kg of water to obtain a fourth composition; and (5) .Continue to stir the fourth composition until it cools to 43°C to prepare the melamine glue for wood grain paper.

Each piece of melamine-impregnated tissue paper 34 containing an antibacterial agent is made by impregnating a piece of white tissue paper with Melamine antibacterial glue and then drying it. Among them, the thickness of the tissue paper is 0.0435mm±0.0015mm and the weight is 21g/m ² . The Melamine antibacterial glue for tissue paper is prepared through a preparation process including the following steps: (1). Mix 21 kilograms of water, 19 kilograms of parformaldehyde and 20 ml of liquid caustic soda with a concentration of 45%. The first composition; (2). Heat the first composition to 83°C and mix it with 20 ml of liquid caustic soda with a concentration of 45% to obtain the second composition; (3). Heat the second composition to 89°C and then mixed with 35 kg of melamine resin to obtain the third composition; (4). Heat the third composition to 110°C and then mix it with 21 kg of water to obtain the fourth composition; and (5) .The fourth composition was continuously stirred until it was cooled to 43°C, and then mixed with 1.62 kg of antibacterial agent (purchased from Toagosei Co., Ltd., model VZ100, Japan) to prepare the Melamine antibacterial glue for tissue paper.

In step (c), the hot pressing is performed by pressurizing and heating the piece to be pressed, so that the wood chips 21, the melamine-impregnated tissue paper 31, and the melamine-impregnated tissue paper in the piece to be pressed are impregnated. The kraft paper 32, the melamine-impregnated wood grain paper 33 and the antibacterial-containing melamine-impregnated tissue paper 34 are bonded to each other and bent to form a specified shape. In addition, they can be cut as needed to prepare the bent wood furniture composite board 1 . In this embodiment, the temperature of the hot pressing is 120°C to 125°C, the pressure is 130 kg/ ^m2 to 150 kg/ ^m2 , and the processing time is about 18 minutes.

To sum up, the manufacturing method of the bentwood furniture composite board of the present invention is more conducive to the production of the bentwood furniture composite board by using the melamine-impregnated tissue paper instead of coating adhesive in step (b), and in accordance with The melamine-impregnated tissue paper, the melamine-impregnated kraft paper, the melamine-impregnated wood grain paper and the antibacterial-containing melamine-impregnated tissue paper are arranged in a specific order so that the obtained bent wood furniture composite board has a flat and smooth texture. It is similar to the appearance of log furniture, and has sufficient hardness, scratch resistance and wear resistance. In particular, the melamine-impregnated tissue paper containing antibacterial agents makes the bentwood furniture composite panels also have antibacterial functions. Therefore, it can indeed achieve purpose of the present invention.

However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made based on the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of this invention.

1········· Bent wood furniture composite board 2·········Core material layer 20········Outer surface 21········ Wood chips 211·····The first pattern 212····· Second texture 3········· Surface layer 31········ Melamine impregnated tissue paper 32········ Melamine impregnated kraft paper 33········ Melamine impregnated wood grain paper 34········ Melamine-impregnated tissue paper containing antibacterial agents

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a perspective view of an embodiment of a bentwood furniture composite panel of the present invention; Figure 2 is a partial perspective exploded view of the embodiment; and Figure 3 is an exploded three-dimensional view of part of the core material layer of this embodiment.

1········· Bent wood furniture composite board 2·········Core material layer 20········Outer surface 21········ Wood chips 3········· Surface layer 31········ Melamine impregnated tissue paper 32········ Melamine impregnated kraft paper 33········ Melamine impregnated wood grain paper 34········ Melamine-impregnated tissue paper containing antibacterial agents

Claims (10)

A bentwood furniture composite panel containing: a core layer consisting of a plurality of wood sheets stacked on top of each other and bonded together; and Two surface material layers are respectively attached to the two opposite outer surfaces of the core material layer. Each surface material layer sequentially includes a piece of melamine-impregnated cotton that is stacked and bonded to each other starting from the corresponding outer surface of the core material layer. paper, a piece of melamine-impregnated kraft paper, a piece of melamine-impregnated tissue paper, a piece of melamine-impregnated wood grain paper and a piece of melamine-impregnated tissue paper containing antibacterial agents, wherein each piece of melamine-impregnated tissue paper containing antibacterial agents is made of A piece of tissue paper is prepared by impregnating melamine antibacterial glue for tissue paper and drying it, and the melamine antibacterial glue for tissue paper has an antibacterial agent. The bentwood furniture composite panel as claimed in claim 1, wherein the wood pieces are bonded to each other through an adhesive glue, and the adhesive glue includes urea glue and melamine glue. The bentwood furniture composite board according to claim 1, wherein each piece of melamine-impregnated kraft paper is made by impregnating a piece of kraft paper with melamine glue and drying it. The bentwood furniture composite board as claimed in claim 1, wherein each piece of melamine-impregnated wood grain paper is made by impregnating a piece of wood grain paper with melamine glue and drying it. The bentwood furniture composite board as described in claim 1, wherein the melamine-impregnated tissue paper is transparent and colorless, and each piece of melamine-impregnated tissue paper is made by impregnating a piece of tissue paper with Melamine glue and drying it. Made. A method for manufacturing bentwood furniture composite panels, including the following steps: (a). Apply adhesive glue to the surfaces of multiple wood pieces, and stack the wood pieces to form a core material layer; (b). Layer one piece of melamine-impregnated tissue paper, one piece of melamine-impregnated kraft paper, one piece of melamine-impregnated tissue paper, one piece of melamine-impregnated wood grain paper and one piece of paper containing The melamine-impregnated tissue paper containing the antibacterial agent is used as the surface material layer to obtain a piece to be pressed. Each piece of the melamine-impregnated tissue paper containing the antibacterial agent is made by impregnating a piece of tissue paper with Melamine antibacterial glue and It is prepared by drying, and the Melamine antibacterial glue for tissue paper has an antibacterial agent; and (c). The parts to be pressed are hot-pressed, bonded and bent to form a curved wood furniture composite panel. The method for manufacturing bentwood furniture composite panels as described in claim 6, wherein the adhesive glue includes urea glue and melamine glue. The method for making bentwood furniture composite panels as described in claim 6, wherein each piece of melamine-impregnated kraft paper is made by impregnating a piece of kraft paper with melamine glue and drying it. The method for making bentwood furniture composite panels as described in claim 6, wherein the melamine-impregnated tissue paper is transparent and colorless, and each piece of melamine-impregnated tissue paper is made by impregnating a piece of tissue paper with Melamine glue and then Produced by drying. The method for making bentwood furniture composite panels as described in claim 6, wherein each piece of melamine-impregnated wood grain paper is made by impregnating a piece of wood grain paper with melamine glue and drying it.

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