CN112757416A

CN112757416A - Bamboo-wood composite material coating plate and production process thereof

Info

Publication number: CN112757416A
Application number: CN202110153867.0A
Authority: CN
Inventors: 谢绍棋; 詹桂城
Original assignee: Fujian Youxi Hongshulin Wood Co ltd
Current assignee: Fujian Youxi Hongshulin Wood Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-05-07

Abstract

The coating plate comprises a plurality of wooden single plates made of wooden materials and bamboo single plates which are arranged in the wooden single plates in a clamping mode and made of bamboo materials, wherein the bamboo single plates account for more than 50% of the total weight of the multilayer single plates. This coating plate structural design ideal adopts wooden veneer and bamboo veneer to combine together and the multilayer veneer that gluing hot pressing each other pressed into, has improved the resistance to deformation degree of coating plate to bamboo veneer accounts for than big, bamboo veneer weight accounts for more than 50% of multilayer veneer total weight, has reduced the manufacturing cost who installs the board, and pure wood decorative board is with low costs relatively, can satisfy some demands to occasions such as home decoration that the coating plate material requirement is not high.

Description

Bamboo-wood composite material coating plate and production process thereof

Technical Field

The invention relates to the technical field of coating plates, in particular to a coating plate made of bamboo and wood composite materials and a production process thereof.

Background

Along with the improvement of living standard, people's requirement to the house ornamentation is higher and higher, and the coating board is the material that often uses in the house ornamentation, and current coating board generally adopts wooden material to make, like wooden lath, it is formed by the concatenation of the short timber of polylith indefinite length, no longer glues the splint from top to bottom, because adopt the cockscomb structure interface between the short timber of vertical, similar two fingers cross butt joint, so also called finger joint lath commonly is used for superior material such as furniture, cupboard, wardrobe.

The existing coating plate can meet the requirements of occasions such as daily home decoration, and the like, and is more natural in appearance, firm, durable, green, environment-friendly, free of artificial additives and free of pollution hidden troubles due to the fact that natural wood is used. But the wood material consumption is large, the manufacturing cost is high, the weather influence is large, the deformation is easy, and the like, and the requirements of occasions such as home decoration with low requirements on the coating plate material are difficult to meet.

Disclosure of Invention

The invention provides a bamboo-wood composite material coating plate and a production process thereof, and aims to overcome the defects that the existing coating plate is not ideal in structural design, large in consumption of solid wood materials, high in manufacturing cost, large in weather influence, easy to deform and the like.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the utility model provides a bamboo wood combined material's coating board, includes the multilayer veneer that veneer hot pressing formed each other to the texture direction mutually perpendicular of two-layer veneer in adjacent ground, this multilayer veneer includes a plurality of wood system veneer made by wooden material and presss from both sides the bamboo veneer that is established in a plurality of wood system veneer and is made by bamboo material, and bamboo veneer weight accounts for more than 50% of multilayer veneer total weight.

The multilayer veneer is formed by alternately layering and overlapping five layers or seven layers or nine layers or eleven layers or thirteen layers or fifteen layers or seventeen layers of wooden veneers and bamboo veneers.

Each wooden veneer is a solid wood veneer with the functions of corrosion resistance and flame retardance.

Each bamboo veneer is a bamboo mat or a whole bamboo veneer made by unfolding whole bamboos, and each bamboo mat is woven by a plurality of bamboo strips in a criss-cross manner.

A production process of a coated plate made of bamboo and wood composite materials comprises the following steps of 1) preparing materials, preparing the number of wooden veneers and bamboo veneers according to the thickness specification requirement of a processed decorative plate, and ensuring that the weight of the bamboo veneers accounts for more than 50% of the total weight of a multilayer veneer; 2) gluing and assembling blanks, namely performing glue brushing treatment on a plurality of wooden veneers and bamboo veneers (such as phenolic glue) and then performing blank assembling operation to form blank plates; 3) carrying out hot pressing on the blank plate, and carrying out hot pressing treatment on the blank plate through a hot press to form a bamboo-wood board; 4) and (4) carrying out subsequent treatment, namely cutting edges of the bamboo-wood board, polishing and inspecting to obtain the decorative board.

Further, in the step 1), the bamboo veneer is a bamboo mat, and the bamboo mat is woven by a plurality of bamboo strips in a criss-cross manner.

Further, in the step 1), the wood veneer is a solid wood veneer which is soaked in the anticorrosion flame retardant solution.

Further, in step 1), the bamboo veneer is a whole bamboo veneer made by unfolding whole bamboo, and the preparation method of the bamboo veneer comprises the following steps: a. cutting moso bamboo into pieces, and cutting the moso bamboo into bamboo tubes in fixed length; b. hollowing out the interior of the bamboo tube, and removing bamboo joints in the bamboo tube to ensure that the interior of the bamboo tube is communicated; c. cutting the bamboo on one side, and performing single-side cutting treatment along the length direction of the bamboo tube; d. heating, softening and flattening, namely heating and softening the bamboo tube, and spreading the bamboo tube on a plane to obtain a bamboo flat plate; e. high-temperature shaping treatment, namely performing high-temperature treatment on the bamboo flat plate to fix and form the bamboo flat plate; f. and (4) fixing the thickness and layering, and horizontally dividing the bamboo flat plate into a plurality of whole bamboo veneers.

From the above description of the present invention, it can be seen that the advantages of the present invention over the prior art are: the coating plate is ideal in structural design, adopts the multi-layer single plates formed by combining the wooden single plates and the bamboo single plates and gluing the wooden single plates and the bamboo single plates mutually and thermally pressing the wooden single plates and the bamboo single plates, the bamboo single plates account for more than 50% of the total weight of the multi-layer single plates, the production cost of the coating plate is reduced, and the deformation resistance of the coating plate is improved; the bamboo wood has the advantages of short growth period, reproducibility, high yield and low cost compared with a pure solid wood decorative plate, and can meet the requirements of occasions such as home decoration and the like with low requirements on the material of a coating plate.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the present invention with the single boards in a separated state.

Fig. 3 is a schematic view of the wood veneer of the present invention being a finger-jointed wood veneer.

Fig. 4 is a schematic view of another finger-jointed wooden veneer according to the present invention.

FIG. 5 is a schematic view of the preparation process of the whole bamboo veneer of the present invention.

FIG. 6 is a schematic end view of a molding of the present invention.

Detailed Description

The following describes an embodiment of the present invention with reference to fig. 1 to 6.

Example one

Reference is made to figures 1 and 2. A bamboo-wood composite material coating plate comprises a plurality of layers of single plates 1 which are mutually glued and hot-pressed, the grain directions of two adjacent layers of single plates are mutually vertical, the plurality of layers of single plates 1 comprise a plurality of wooden single plates 11 made of wooden materials and bamboo single plates 12 which are clamped in the wooden single plates 11 and made of bamboo materials, and the weight of the bamboo single plates 12 accounts for more than 50% of the total weight of the plurality of layers of single plates 1 (note: generally controlled between 55% and 60%).

Reference is made to figures 1 and 2. The multilayer veneer is formed by seventeen layers of wooden veneers 11 and bamboo veneers 12 which are alternately layered and superposed. Each wood veneer 11 is a whole wood veneer made by a rotary cutter, and the whole wood veneer is soaked in the anticorrosion flame-retardant liquid and then dried to obtain a solid wood veneer with anticorrosion flame-retardant function. Through the design of the solid wood veneer soaked in the anticorrosion flame-retardant liquid, the solid wood veneer is subjected to an anticorrosion flame-retardant treatment technology, so that the stability is enhanced, deformation and cracking are avoided, the properties of flame retardance, mildew resistance, corrosion resistance and the like are realized, and the anticorrosion flame-retardant property of the wood veneer 11 is greatly improved. Each bamboo veneer 12 is a bamboo mat, and each bamboo mat is woven by a plurality of bamboo strips in a criss-cross manner. The bamboo mat is generally made of moso bamboos, bamboo skins are split into thin bamboo strips, and the thin bamboo strips are subjected to multiple processing technologies of carbonization, cooking, insect prevention, mildew prevention, drying, flame retardance and the like, so that the density and the hardness of the bamboo mat are high.

In addition, the wooden veneer 11 may also be formed by longitudinally connecting and widening end portions of a plurality of short wooden slats with different lengths, and laterally extending side surfaces of the short wooden slats to form a finger-joint wooden veneer 13 or a butt-joint wooden veneer, which refer to fig. 3 of the specification specifically. The wood veneer 11 can also be connected by the end of a plurality of short wood strips with different lengths in the transverse direction, the side surface of the wood veneer is longitudinally connected to form a finger-joint wood veneer 14 or a butt-joint wood veneer, the short wood strips with different lengths are transversely spliced to form the wood veneer, the defect that the traditional wood veneer is longitudinally spliced by long strips is changed, the deformation-resistant strength of the decorative plate is further improved, and the drawing 4 of the specification can be specifically referred. The multilayer veneer 1 can also be formed by alternately layering and overlapping five or seven or nine or eleven or thirteen or fifteen layers of wooden veneers and bamboo veneers.

Reference is made to figures 1 and 2. The production process of the coating plate made of the bamboo-wood composite material comprises the following steps of 1) preparing materials, preparing the quantity of wooden single plates 11 and bamboo single plates 12 according to the thickness specification requirement of a processed decorative plate, and ensuring that the weight of the bamboo single plates 12 accounts for more than 50% of the total weight of the multilayer single plates 1 (remarks: generally controlled to be between 55% and 60%), the bamboo veneer 12 is a bamboo mat woven by a plurality of bamboo strips in a criss-cross manner, and the wood veneer 11 is a solid wood veneer soaked in an anticorrosive flame-retardant liquid. The method for soaking the solid wood veneer in the anti-corrosion flame-retardant liquid comprises the following steps: a. preparing an anticorrosive flame-retardant liquid, which comprises the following components, by weight, 50-55 parts of guanylurea phosphate, 15-18 parts of boric acid, borax, 2-5 parts of N- (2-benzimidazolyl) -methyl carbamate, 2-5 parts of triethanolamine and 150 parts of water; b. soaking, namely heating the solid wood veneer by using 100-110 ℃ water vapor for 3-5 minutes, then soaking the solid wood veneer into prepared anticorrosive flame-retardant liquid, pressing the solid wood veneer to a position below the liquid level of the soaking liquid by using a heavy object, and ensuring that the solid wood veneer is fully absorbed in the soaking process, wherein the soaking time is 2-3 hours, and the soaking temperature is controlled to be 45-55 ℃; c. and (3) drying, after the impregnation is finished, draining residual liquid drops on the solid wood veneer, then drying the solid wood veneer in a constant-temperature air-blowing drying oven, drying the solid wood veneer for 5 to 6 hours at the temperature of between 40 and 50 ℃ and for 4 to 5 hours at the temperature of between 80 and 90 ℃, and heating the solid wood veneer to the temperature of between 100 and 105 ℃ for absolute drying. The method for soaking the anti-corrosion flame-retardant liquid not only reduces the hygroscopicity of the solid wood veneer, but also can prevent the growth of microorganisms in the wood, so that the wood has good dimensional stability and corrosion resistance.

2) Gluing and assembling blanks, namely brushing the glue on the plurality of wooden veneers and the bamboo veneers by using phenolic glue, and then assembling the blanks to form the blank plates.

3) And (5) carrying out hot pressing on the blank plate, and carrying out hot pressing treatment on the blank plate through a hot press to form the bamboo-wood board.

4) And (4) carrying out subsequent treatment, namely carrying out edge cutting, polishing, inspection and other treatment on the bamboo-wood board to obtain the decorative board.

In addition, the phenolic glue can also be replaced by a soybean adhesive, and the soybean adhesive comprises: purified water, defatted soybean meal, potassium periodate, tetraethylenepentamine, ethylene glycol diglycidyl ether, bromelain and bean chitinase, and the proportion is as follows: 200: 100: 15: 5: 2: 1: 1; most of the soybean adhesives are pure biological raw materials, have high natural degradation rate, are non-toxic and environment-friendly, do not contain formaldehyde, and have good adhesive bonding property and high tensile strength after bonding.

Example two

The present embodiment is substantially the same as the first embodiment, except that: reference is made to figures 1, 5 and 6. The bamboo veneer 12 is a whole bamboo veneer made by unfolding whole bamboo, and the design of the whole bamboo veneer is adopted, so that the decorative plate is not easy to crack and separate, and the overall strength and the deformation resistance of the coating plate are greatly improved. The whole bamboo veneer can be formed into a large veneer by horizontally splicing a plurality of whole bamboo veneers; the single bamboo veneer is relatively narrow, so that the single bamboo veneer is particularly suitable for processing some bamboo and wood decorative profiles (such as decorative lines, decorative door frame strips, door courtyards and the like), and the attached drawing 6 of the specification can be referred to specifically. The preparation method of the whole bamboo veneer comprises the following steps: a. cutting moso bamboo into pieces, cutting the moso bamboo (i.e. bamboo) into bamboo tubes 1 at fixed length by a cutting machine.

b. The bamboo tube is characterized in that the bamboo tube 1 is horizontally fixed on a frame through hollow processing, then bamboo joints in the bamboo tube 1 are removed by stretching a rotary cutter head 2 into the bamboo tube 1, the interior of the bamboo tube 1 is communicated, the rotary cutter head 2 comprises a rotary shaft and a drill bit which is connected with the rotary shaft and is semicircular, and the diameter of the drill bit is slightly smaller than the inner diameter of the bamboo tube 1.

c. And (3) cutting the bamboo on one side, and then performing single-side cutting treatment along the length direction of the bamboo tube 1 by using a saw blade 3.

d. Heating, softening and flattening, namely performing steam heating softening treatment on the bamboo tube 1, controlling the softening temperature to be 110-120 ℃, keeping the softening temperature for 40-45 min, unfolding and flattening the bamboo tube on a plane through a compression roller to obtain a bamboo flat plate 4, and passing the bamboo flat plate;

e. high-temperature shaping treatment, namely performing steam high-temperature treatment on the bamboo flat plate 4 to prevent the completely unfolded bamboo flat plate 4 from deforming, controlling the shaping temperature to be 160-180 ℃ for 5-6min, and then performing drying treatment to fix and shape the bamboo flat plate 4 to obtain the completely unfolded non-deformable bamboo flat plate 4; if a small amount of protruding bamboo joint residues exist on the inner surface of the bamboo flat plate 4, removing the small amount of protruding bamboo joint residues on the inner surface of the bamboo flat plate 4 through a woodworking planer.

f. And (4) fixing the thickness and layering, and horizontally dividing the bamboo flat plate 4 into a plurality of whole bamboo veneers 12.

The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.

Claims

1. The utility model provides a bamboo wood combined material's coating board which characterized in that: including the multilayer veneer that gluing hot pressing formed each other to the texture direction mutually perpendicular of two-layer veneer in adjacent ground, this multilayer veneer includes a plurality of wood system veneer made by wooden material and presss from both sides the bamboo veneer that is arranged in a plurality of wood system veneer and is made by bamboo material, and bamboo veneer weight accounts for more than 50% of multilayer veneer gross weight.

2. The bamboo-wood composite coated board of claim 1, characterized in that: the multilayer veneer is formed by alternately layering and overlapping five layers or seven layers or nine layers or eleven layers or thirteen layers or fifteen layers or seventeen layers of wooden veneers and bamboo veneers.

3. The bamboo-wood composite coated board of claim 1, characterized in that: each wooden veneer is a solid wood veneer with the functions of corrosion resistance and flame retardance.

4. The bamboo-wood composite coated board of claim 1, characterized in that: each bamboo veneer is a bamboo mat or a whole bamboo veneer made by unfolding whole bamboos, and each bamboo mat is woven by a plurality of bamboo strips in a criss-cross manner.

5. A production process of a coated board made of bamboo and wood composite materials is characterized by comprising the following steps: which comprises the following steps of,

1) preparing materials, namely preparing the number of wooden veneers and bamboo veneers according to the thickness specification requirement of the processed decorative plate, and ensuring that the weight of the bamboo veneers accounts for more than 50% of the total weight of the multilayer veneers;

2) gluing and assembling blanks, namely performing glue brushing treatment on a plurality of wooden veneers and bamboo veneers and then performing blank assembling operation to form blank plates;

3) carrying out hot pressing on the blank plate, and carrying out hot pressing treatment on the blank plate through a hot press to form a bamboo-wood board;

4) and (4) carrying out subsequent treatment, namely cutting edges of the bamboo-wood board, polishing and inspecting to obtain the decorative board.

6. A production process of a bamboo-wood composite material coated board according to claim 5, characterized in that: in the step 1), the bamboo veneer is a bamboo mat which is woven by a plurality of bamboo strips in a criss-cross manner.

7. A production process of a bamboo-wood composite material coated board according to claim 5, characterized in that: in the step 1), the wooden veneer is a solid wood veneer which is soaked in the anticorrosion flame-retardant liquid.

8. A production process of a bamboo-wood composite material coated board according to claim 5, characterized in that: in the step 1), the bamboo veneer is a whole bamboo veneer made by unfolding whole bamboo, and the preparation method of the whole bamboo veneer comprises the following steps: a. cutting moso bamboo into pieces, and cutting the moso bamboo into bamboo tubes in fixed length; b. hollowing out the interior of the bamboo tube, and removing bamboo joints in the bamboo tube to ensure that the interior of the bamboo tube is communicated; c. cutting the bamboo on one side, and performing single-side cutting treatment along the length direction of the bamboo tube; d. heating, softening and flattening, namely heating and softening the bamboo tube, and spreading the bamboo tube on a plane to obtain a bamboo flat plate; e. high-temperature shaping treatment, namely performing high-temperature treatment on the bamboo flat plate to fix and form the bamboo flat plate; f. and (4) fixing the thickness and layering, and horizontally dividing the bamboo flat plate into a plurality of whole bamboo veneers.