CN111873091A - Composite board of artificial base material and glue-impregnated veneer and production process - Google Patents

Composite board of artificial base material and glue-impregnated veneer and production process Download PDF

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Publication number
CN111873091A
CN111873091A CN202010788152.8A CN202010788152A CN111873091A CN 111873091 A CN111873091 A CN 111873091A CN 202010788152 A CN202010788152 A CN 202010788152A CN 111873091 A CN111873091 A CN 111873091A
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China
Prior art keywords
glue
veneer
impregnated
melamine
board
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CN202010788152.8A
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Chinese (zh)
Inventor
沈峥
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Zhejiang Yude New Material Technology Co ltd
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Zhejiang Yude New Material Technology Co ltd
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Priority to CN202010788152.8A priority Critical patent/CN111873091A/en
Publication of CN111873091A publication Critical patent/CN111873091A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/06—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/026—Wood layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/028—Paper layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin

Abstract

The invention discloses a composite board of an artificial base material and glue-impregnated veneer and a production process. The production process comprises the following steps: A. carrying out frosting treatment on the surface of the artificial base material to obtain an A plate; B. coating waterproof high-temperature-resistant bonding glue on the front side and the back side of the plate A to obtain a plate B; the coating amount of the waterproof high-temperature-resistant bonding glue is 30-100 g/square meter; C. paving melamine glue impregnated veneers on the front side of the board B, and paving melamine impregnated paper on the back side of the board B to obtain a board C; D. carrying out hot press molding on the plate C to obtain a plate D; the hot pressing temperature is 115-180 ℃, the pressure is 0.5-1.2 MPa, and the pressure maintaining time is 500-1200 seconds; E. cooling and shaping the D plate, and cutting to obtain a finished plate; the cooling temperature is 20-60 ℃, the pressure is 0.5-1.2 MPa, and the pressure maintaining time is 500-1500 seconds. The invention can simultaneously give consideration to simple and convenient production, good wear resistance, stronger water resistance and flame retardant property.

Description

Composite board of artificial base material and glue-impregnated veneer and production process
Technical Field
The invention relates to an artificial composite board, in particular to a composite board of an artificial base material and glue-impregnated wood veneer and a production process.
Background
The artificial base material mainly comprises plywood, polyester board, fiberboard, core board, shaving board, wood wool board, wood chip board and the like, and in order to enable the surface of the artificial base material to have good aesthetic property, a layer of surface bonding material is generally adhered to the surface of the artificial base material, so that consumers can conveniently choose and purchase the artificial base material. For materials such as polyester plywood, vinyl material plates (such as stone-plastic plate, wood-plastic plate and the like), surface bonding materials currently have three bonding modes of PVC color film + wear resistance, wood sheet and melamine impregnated paper. However, because the surfaces of the base plates such as the polyester board and the vinyl material plate are smooth, the traditional melamine impregnated paper cannot be directly formed with the vinyl material in a direct pressing and pasting mode, multiple-process secondary forming is needed, and the production continuity and the mass production capacity are poor; meanwhile, the melamine impregnated paper is a printed product, so that the texture and the visual aesthetic degree are poor, the melamine impregnated paper can achieve very strong wear resistance after being cured and formed, but once the wear-resistant layer and the printing layer are damaged, the stability and the aesthetic degree of the product are greatly reduced. Regarding the wood sheet, the texture is strong, the visual aesthetic degree is good, but the wear resistance is poor, if the wear resistance is required to be improved, various paint processes are required, the process is complex, and the flame retardant property and the waterproof property are very poor. The PVC color film and the wear-resistant mode are PVC printed products, the texture and the visual attractiveness are poor, and a surface wear-resistant material needs to be applied at the later stage of the production process, but even if the surface wear-resistant material is applied, the wear-resistant capability is poor. Therefore, the prior art has the problem that the production is simple and convenient, the wear resistance is good, and the waterproof and flame retardant performances are stronger.
Disclosure of Invention
The invention aims to provide a composite board of an artificial base material and glue-impregnated wood veneer and a production process thereof. The invention can simultaneously give consideration to simple and convenient production, good wear resistance, stronger water resistance and flame retardant property.
The technical scheme of the invention is as follows: the composite board of the artificial base material and the glue-impregnated veneer comprises the artificial base material, wherein the melamine glue-impregnated veneer is arranged on the front surface of the artificial base material.
In the composite board of the artificial base material and the glue-impregnated veneer, the reverse side of the artificial base material is provided with melamine impregnated paper.
In the composite board of the artificial base material and the glue-impregnated veneer, waterproof high-temperature-resistant adhesive glue layers are arranged between the melamine-glue-impregnated veneer and the artificial base material and between the artificial base material and the melamine-impregnated paper.
In the composite board of the artificial base material and the glue-impregnated veneer, the melamine wear-resistant layer is arranged above the melamine glue-impregnated veneer.
In the composite board of the artificial base material and the glue-impregnated veneer, the artificial base material is a vinyl material.
The production process of the composite board of the artificial base material and the glue-impregnated veneer comprises the following steps:
A. carrying out frosting treatment on the surface of the artificial base material to obtain an A plate;
B. coating waterproof high-temperature-resistant bonding glue on the front side and the back side of the plate A to obtain a plate B; the coating amount of the waterproof high-temperature-resistant bonding glue is 30-100 g/square meter;
C. paving melamine glue impregnated veneers on the front side of the board B, and paving melamine impregnated paper on the back side of the board B to obtain a board C;
D. carrying out hot press molding on the plate C to obtain a plate D; the hot pressing temperature is 115-180 ℃, the pressure is 0.5-1.2 MPa, and the pressure maintaining time is 500-1200 seconds;
E. cooling and shaping the D plate, and cutting to obtain a finished plate; the cooling temperature is 20-60 ℃, the pressure is 0.5-1.2 MPa, and the pressure maintaining time is 500-1500 seconds.
In the production process of the composite board of the artificial base material and the glue-impregnated veneer, the melamine wear-resistant layer is paved on the surface of the glue-impregnated veneer; the wear-resistant index of the melamine wear-resistant layer is 3000-8000.
In the production process of the composite board of the artificial base material and the glue-impregnated veneer, the ground meshes in the step A are 30-80 meshes.
In the production process of the composite board of the artificial base material and the glue-impregnated veneer, the thickness of the melamine glue-impregnated veneer is 0.3 mm-1.2 mm; the melamine impregnated paper is 80 g to 240 g/m.
In the production process of the composite board of the artificial base material and the glue-impregnated veneer, the preparation method of the melamine glue-impregnated veneer comprises the following steps:
firstly, cutting and trimming purchased veneers to obtain veneer raw materials;
secondly, splicing the veneer raw materials to obtain a spliced veneer roll;
thirdly, gum dipping treatment; carrying out melamine glue soaking treatment and drying treatment on the spliced veneer rolls twice to obtain dipped veneer; the total gluing amount of the spliced veneer roll is 120-180% of the weight of the spliced veneer roll, and the first gluing amount is 55-65% of the total gluing amount.
Compared with the prior art, the melamine glue impregnated veneer is bonded on the front surface of the artificial base material, so that the artificial base material has stronger texture and visual attractiveness and stronger wear resistance, a subsequent paint treatment process is omitted, the process flow is simplified, and the production is facilitated; meanwhile, the melamine impregnated paper is bonded on the reverse side of the artificial base material, and the melamine adhesive impregnated veneer surface is coated with the melamine wear-resistant layer, so that the wear-resistant performance and the waterproof flame-retardant performance of the whole composite board can be further improved. According to the invention, by reasonably optimizing the artificial substrate surface sanding treatment process, strictly controlling the use amount of the waterproof high-temperature-resistant bonding glue coated on the front surface and the back surface, strictly controlling the production process of dipping the veneer by the melamine glue and the use amount of melamine, and controlling the hot pressing process, through the mutual cooperation of the processes, the veneer can be formed by pressing and pasting at one time, and on the premise of ensuring the pressing and pasting quality (including bonding firmness), the production process is reduced, and the mass production capability is achieved. In conclusion, the invention can simultaneously give consideration to simple and convenient production, good wear resistance, and stronger waterproof and flame retardant properties.
Drawings
Fig. 1 is a structural view of the present invention.
The labels in the figures are: 1-artificial base material, 2-melamine glue impregnated veneer, 3-melamine impregnated paper, 4-waterproof high-temperature-resistant adhesive glue layer and 5-melamine wear-resistant layer.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example 1. The composite board of the artificial base material and the glue-impregnated veneer comprises an artificial base material 1, wherein a melamine glue-impregnated veneer 2 is arranged on the front surface of the artificial base material 1, as shown in figure 1.
The reverse side of the artificial substrate 1 is provided with melamine impregnated paper 3.
Waterproof high-temperature-resistant adhesive glue layers 4 are arranged between the melamine glue impregnated veneer 2 and the artificial base material 1 and between the artificial base material 1 and the melamine impregnated paper 3.
The waterproof high-temperature-resistant bonding glue can be water-based acrylic emulsion, U961.
The melamine wear-resistant layer 5 is arranged above the melamine glue impregnated veneer 2.
The artificial substrate 1 is a vinyl material.
The production process of the composite board of the artificial base material and the glue-impregnated veneer comprises the following steps:
A. carrying out frosting treatment on the surface of the artificial base material to obtain an A plate; (the surface roughness of the artificial board base material is standard enough without sanding treatment),
B. coating waterproof high-temperature-resistant bonding glue on the front side and the back side of the plate A to obtain a plate B; the coating amount of the waterproof high-temperature-resistant bonding glue is 30-100 g/square meter;
C. paving melamine glue impregnated veneers on the front side of the board B, and paving melamine impregnated paper on the back side of the board B to obtain a board C;
D. carrying out hot press molding on the plate C to obtain a plate D; the hot pressing temperature is 115-180 ℃, the pressure is 0.5-1.2 MPa, and the pressure maintaining time is 500-1200 seconds;
E. cooling and shaping the D plate, and cutting to obtain a finished plate; the cooling temperature is 20-60 ℃, the pressure is 0.5-1.2 MPa, and the pressure maintaining time is 500-1500 seconds.
Paving a melamine wear-resistant layer on the surface of the glue-impregnated veneer; the wear-resistant index of the melamine wear-resistant layer is 3000-8000.
The melamine wear resistant layer has a specification number of 15 g to 50 g/m.
The number of the grinding meshes in the step A is 30-80 meshes.
The thickness of the melamine glue dipped wood veneer is 0.3 mm-1.2 mm; the melamine impregnated paper is 80 g to 240 g/m.
The preparation method of the melamine glue impregnated veneer comprises the following steps:
firstly, cutting and trimming purchased veneers to obtain veneer raw materials;
secondly, splicing the veneer raw materials to obtain a spliced veneer roll;
thirdly, gum dipping treatment; carrying out melamine glue soaking treatment and drying treatment on the spliced veneer rolls twice to obtain dipped veneer; the total gluing amount of the spliced veneer roll is 120-180% of the weight of the spliced veneer roll, and the first gluing amount is 55-65% of the total gluing amount.
The specific process of cutting and trimming comprises the following steps: the purchased veneers are 2.5 meters or 2.65 meters long and 1.26 meters or 1.3 meters wide, trimming is carried out on a board sawing machine firstly, the veneers are cut to be 1.25 meters wide and 2.47 meters long which are larger than the length and the width of the board respectively, and the trimming of the scientific veneers or the solid wood veneers is mainly carried out for the purpose of breaking due to the hanging tension of the veneers which are about 45 meters long in an oven of glue dipping equipment and uneven joints of the veneers in the next glue dipping process.
The technical wood veneer or solid wood veneer which is cut and trimmed is spliced into a rolling state by hot pressing of an adhesive tape in a modified pressing and pasting device, is realized into a roll shape and can be continuously impregnated,
the splicing process comprises the following specific steps: cutting and trimming the technical wood veneer or the solid wood veneer in a pressing and pasting device, cutting a non-woven fabric adhesive tape or a back adhesive coated fabric with the width of 2 centimeters and the length of 1.25 meters, putting the cut technical wood veneer or the solid wood veneer on the veneer, pressing and pasting the technical wood veneer or the solid wood veneer at the temperature of 160 ℃ for 15 seconds, and performing hot-pressing curing and gluing on the non-woven fabric adhesive tape or the back adhesive coated fabric to glue the technical wood veneer or the solid wood veneer.
The concrete process of gum dipping: the spliced veneer roll grown into a roll is divided into 2 times of gumming, the first gumming passes through a traction roller, enters a melamine glue pool, is fully soaked and absorbed with melamine glue, excess glue is extruded out through a glue metering roller, the better condition is that the gumming amount is 55-65% of the total glue amount, the proportion of the glue in the first gumming is 50% of E0-grade melamine glue and 50% of E0-grade urea formaldehyde glue, the proportion is the proportion of optimized cost and the best pasting effect, the veneer passes through a three-section drying oven of 3.5 meters, the first section temperature is 80 ℃, the second section temperature is 95 ℃, the third section temperature is 110 ℃, the air quantity of each section of drying oven is about 2000 cubic meters per hour, the veneer is in a semi-dry semi-curing state after passing through the first three-section drying oven, is continuously pulled into a second gumming pool, the E0-grade melamine glue with the gumming amount of 35-45% of the total glue amount passes through the glue metering roller, passes through a five-section drying oven of 3, the temperature of the first section of oven is 130 ℃, the temperature of the second section of oven is 160 ℃, the temperature of the third section of oven is 150 ℃, the temperature of the fourth section of oven is 170 ℃, the temperature of the fifth section of oven is 140 ℃, the air volume of each section of oven is about 2000 cubic meters per hour, the total air volume of the eight sections of ovens is 15000-.
Example 2. The composite board of the artificial base material and the glue-impregnated veneer comprises an artificial base material 1, wherein a melamine glue-impregnated veneer 2 is arranged on the front surface of the artificial base material 1, as shown in figure 1.
The reverse side of the artificial substrate 1 is provided with melamine impregnated paper 3.
Waterproof high-temperature-resistant adhesive glue layers 4 are arranged between the melamine glue impregnated veneer 2 and the artificial base material 1 and between the artificial base material 1 and the melamine impregnated paper 3.
The melamine wear-resistant layer 5 is arranged above the melamine glue impregnated veneer 2.
The artificial substrate 1 is a vinyl material.
The production process of the composite board of the artificial base material and the glue-impregnated veneer comprises the following steps:
A. carrying out frosting treatment on the surface of the artificial base material to obtain an A plate;
B. coating waterproof high-temperature-resistant bonding glue on the front side and the back side of the plate A to obtain a plate B; the coating amount of the waterproof high-temperature-resistant bonding glue is 50 g/square meter;
C. paving melamine glue impregnated veneers on the front side of the board B, and paving melamine impregnated paper on the back side of the board B to obtain a board C;
D. carrying out hot press molding on the plate C to obtain a plate D; the hot pressing temperature is 155 ℃, the pressure is 0.9 MPa, and the pressure maintaining time is 1000 seconds;
E. cooling and shaping the D plate, and cutting to obtain a finished plate; the cooling temperature was 30 ℃ and the pressure was 0.9 MPa, and the pressure was maintained for 1000 seconds.
Paving a melamine wear-resistant layer on the surface of the glue-impregnated veneer; the wear index of the melamine wear layer was 5000. The specification of the melamine wear-resistant layer is 38 g/square meter
The number of the grinding meshes in the step A is 30-80 meshes.
The thickness of the melamine glue impregnated veneer is 0.3 mm; the melamine impregnated paper was 160 grams per square meter.
The preparation method of the melamine glue impregnated veneer comprises the following steps:
firstly, cutting and trimming purchased veneers to obtain veneer raw materials;
secondly, splicing the veneer raw materials to obtain a spliced veneer roll;
thirdly, gum dipping treatment; carrying out melamine glue soaking treatment and drying treatment on the spliced veneer rolls twice to obtain dipped veneer; the total gluing amount of the spliced veneer roll is 150% of the weight of the spliced veneer roll, and the first gluing amount is 60% of the total gluing amount.
The specific process of cutting and trimming comprises the following steps: the purchased veneers are 2.5 meters or 2.65 meters long and 1.26 meters or 1.3 meters wide, trimming is carried out on a board sawing machine, the veneers are cut to be larger than the length and the width of the board by 1-2 centimeters (1.25 meters wide and 2.47 meters long), and the trimming of the scientific veneers or the solid wood veneers is mainly carried out for the purpose of breaking due to the suspended tensile force of the veneers and the uneven joints of the veneers caused by the length of equipment (the length of an oven of a glue dipping equipment is about 45 meters) in the next glue dipping process.
The technical wood veneer or solid wood veneer which is cut and trimmed is spliced into a rolling state by hot pressing of an adhesive tape in a modified pressing and pasting device, is realized into a roll shape and can be continuously impregnated,
the splicing process comprises the following specific steps: cutting and trimming the technical wood veneer or the solid wood veneer in a pressing and pasting device, cutting a non-woven fabric adhesive tape or a back adhesive coated fabric with the width of 2 centimeters and the length of 1.25 meters, putting the cut technical wood veneer or the solid wood veneer on the veneer, pressing and pasting the technical wood veneer or the solid wood veneer at the temperature of 160 ℃ for 15 seconds, and performing hot-pressing curing and gluing on the non-woven fabric adhesive tape or the back adhesive coated fabric to glue the technical wood veneer or the solid wood veneer.
The concrete process of gum dipping: the spliced veneer roll growing into a roll is divided into 2 times of gumming, the first gumming passes through a traction roller and enters a melamine glue pool to be fully soaked and absorbed, redundant glue is extruded out through a glue metering roller, the gumming amount is controlled to be 60% of the total gum amount, the proportion of the glue subjected to the first gumming is 50% of E0-grade melamine glue and 50% of E0-grade urea formaldehyde glue, the proportion is the proportion with optimized cost and the best pasting effect, the veneer is in a semi-dry semi-curing state after passing through a three-section drying oven of 3.5 meters, the first section temperature is 80 ℃, the second section temperature is 95 ℃, the third section temperature is 110 ℃, the air volume of each section of drying oven is about 2000 cubic meters per hour, the veneer is continuously pulled into a secondary gumming pool, the E0-grade melamine glue with the gumming amount being 40% of the total gum amount is fed through the glue metering roller, the fifth section drying oven of 3.5 meters, the first section drying oven temperature is 130 ℃, the temperature of the second section of oven is 160 ℃, the temperature of the third section of oven is 150 ℃, the temperature of the fourth section of oven is 170 ℃, the temperature of the fifth section of oven is 140 ℃, the air volume of each section of oven is about 2000 cubic meters per hour, the total air volume of the eight sections of ovens is 18000 cubic meters per hour, and the total gluing amount is 150% of the weight of the veneer.
Taking a vinyl floor as an example: when the method of the embodiment 2 is adopted for production, a 700-900T special cold-hot separation type multi-layer press is used for one-step pressing and forming, the vinyl floor with the production capacity of 1500-2000 square meters is produced in each day, 4 devices are used in actual production, and the production capacity of 6000-8000 square meters is produced in each day. After the pressing and pasting are finished, standing for 12 hours at normal temperature, and then cutting, slicing and grooving according to the specification requirements of finished products to obtain finished products. The same yield, the time of using other production processes is at least 5-10 times longer, and the technical scheme of the application can omit processes of firstly manually pasting wood veneer on a substrate, then preparing a finished product by using a traditional paint process, precuring melamine and then pasting the product on the substrate, and the like.
The waterproof performance of the vinyl floor does not show any layered degumming phenomenon after being continuously soaked for 45 days, and the vinyl floor is naturally dried after being discharged and then returns to the original state before entering water; the flame retardant performance was grade B1, or higher.

Claims (10)

1. The composite board of artificial substrate and glue-impregnated veneer is characterized in that: comprises an artificial base material (1), wherein the front surface of the artificial base material (1) is provided with a melamine glue impregnated veneer (2).
2. The composite board of the artificial substrate and the glue-impregnated veneer according to claim 1, wherein: the reverse side of the artificial substrate (1) is provided with melamine impregnated paper (3).
3. The composite board of the artificial substrate and the glue-impregnated veneer according to claim 2, wherein: waterproof high-temperature-resistant adhesive glue layers (4) are arranged between the melamine glue impregnated veneer (2) and the artificial base material (1) and between the artificial base material (1) and the melamine impregnated paper (3).
4. The composite board of the artificial substrate and the glue-impregnated veneer according to claim 1, wherein: a melamine wear-resistant layer (5) is arranged above the melamine glue impregnated veneer (2).
5. The composite board of the artificial substrate and the glue-impregnated veneer according to claim 1, wherein: the artificial base material (1) is one of an ethylene base material, a fireproof board, a glass magnesium board, a graphite substrate, an anti-double board, a density board, a shaving board or a plywood.
6. The production process of the composite board of the artificial base material and the glue-impregnated veneer is characterized by comprising the following steps of:
A. carrying out frosting treatment on the surface of the artificial base material to obtain an A plate;
B. coating waterproof high-temperature-resistant bonding glue on the front side and the back side of the plate A to obtain a plate B; the coating amount of the waterproof high-temperature-resistant bonding glue is 30-100 g/square meter;
C. paving melamine glue impregnated veneers on the front side of the board B, and paving melamine impregnated paper on the back side of the board B to obtain a board C;
D. carrying out hot press molding on the plate C to obtain a plate D; the hot pressing temperature is 115-180 ℃, the pressure is 0.5-1.2 MPa, and the pressure maintaining time is 500-1200 seconds;
E. cooling and shaping the D plate, and cutting to obtain a finished plate; the cooling temperature is 20-60 ℃, the pressure is 0.5-1.2 MPa, and the pressure maintaining time is 500-1500 seconds.
7. The process for producing a composite board of an artificial substrate and a glue-impregnated veneer according to claim 6, wherein: paving a melamine wear-resistant layer on the surface of the glue-impregnated veneer; the wear-resistant index of the melamine wear-resistant layer is 3000-8000.
8. The process for producing a composite board of an artificial substrate and a glue-impregnated veneer according to claim 6, wherein: the number of the grinding meshes in the step A is 30-80 meshes.
9. The process for producing a composite board of an artificial substrate and a glue-impregnated veneer according to claim 6, wherein: the thickness of the melamine glue dipped wood veneer is 0.3 mm-1.2 mm; the melamine impregnated paper is 80 g to 240 g/m.
10. The process for producing a composite board of an artificial substrate and a glue-impregnated veneer according to claim 6, wherein: the preparation method of the melamine glue impregnated veneer comprises the following steps:
firstly, cutting and trimming purchased veneers to obtain veneer raw materials;
secondly, splicing the veneer raw materials to obtain a spliced veneer roll;
thirdly, gum dipping treatment; carrying out melamine glue soaking treatment and drying treatment on the spliced veneer rolls twice to obtain dipped veneer; the total gluing amount of the spliced veneer roll is 120-180% of the weight of the spliced veneer roll, and the first gluing amount is 55-65% of the total gluing amount.
CN202010788152.8A 2020-08-07 2020-08-07 Composite board of artificial base material and glue-impregnated veneer and production process Pending CN111873091A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115142628A (en) * 2022-07-18 2022-10-04 浙江亚厦装饰股份有限公司 Wallboard and production process thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115142628A (en) * 2022-07-18 2022-10-04 浙江亚厦装饰股份有限公司 Wallboard and production process thereof

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