A method for environmentally friendly treatment of office furniture surface

Abstract

The present invention discloses a method for environmentally friendly treatment of the surface of office furniture, comprising the following steps: S1: plate treatment, stacking the cut and formed office furniture plate components in a sealed treatment chamber at intervals, heating at a constant temperature, prompting the volatile organic gas to volatilize quickly, and installing a one-way air inlet valve on the outer wall of one end of the sealed treatment chamber, S2: organic gas volatilization treatment, installing a one-way air outlet valve at one end of the sealed treatment chamber away from the one-way air inlet, and connecting an air pump to the air outlet end of the one-way air outlet valve, and quickly pumping the organic gas volatilized in the sealed treatment chamber into a photocatalyst for catalytic decomposition. The present invention can force the organic gas in the plate to volatilize in advance, and environmentally treat the volatilized organic gas, reduce the organic gas content in the office furniture plate components to a safe value, and at the same time encapsulate the sticker, the film, and the organic gas absorbent in the resin, continuously absorb the remaining organic gas volatilized in the plate, and can also improve the aesthetics of the plate.

Description

Technical Field

[0001] The invention relates to the technical field of furniture production, and in particular to an environmentally friendly treatment method for the surface of office furniture. Background Art

[0002] Office furniture is equipment that is provided for the convenience of office workers or work in daily life, work and social activities. It is generally made of wood, aluminum, steel, resin, plastic, etc.

[0003] Particleboard (sawdust board) and plywood (three-ply board) are commonly used materials for office furniture on the market due to their low material cost. Particleboard (sawdust board) and plywood (three-ply board) are made by gluing and hot pressing. There are a lot of volatile organic gases such as formaldehyde, benzene, and ammonia in the glue. When office furniture made of particleboard (sawdust board) and plywood (three-ply board) is in use, the harmful substances in the glue will continue to evaporate. Although the amount is small, it will accumulate over a long period of time and will also affect the respiratory tract and body of office workers. Summary of the invention

[0004] Based on the problem that harmful substances in glue of office furniture made of sawdust board and plywood (three-ply board) will continue to volatilize when in use, the present invention proposes an environmentally friendly treatment method for the surface of office furniture.

[0005] The present invention provides an environmentally friendly treatment method for the surface of office furniture, comprising the following steps:

[0006] S1: Sheet material processing: the cut and formed office furniture sheet material parts are stacked in a sealed processing room at intervals and heated at a constant temperature to promote the rapid volatilization of volatile organic gases. A one-way air inlet valve is installed on the outer wall of one end of the sealed processing room;

[0007] S2: Organic gas volatilization treatment, a one-way air outlet valve is installed at one end of the sealed treatment chamber away from the one-way air inlet, and an air pump is connected to the outlet end of the one-way air outlet valve to quickly draw the volatilized organic gas in the sealed treatment chamber into the photocatalyst for catalytic decomposition, the end of the photocatalyst is connected to a desorption adsorption box, a three-way valve is installed at the end of the desorption adsorption box, one end of the three-way valve is connected to a reflux fan, the reflux fan is connected to the inside of the photocatalyst through a conduit, and the other end of the three-way valve is connected to an absorption box, and the absorption box contains an organic gas absorption liquid;

[0008] S3: Filling with absorbent: grooves are opened at the top and bottom of the board where the surface area is the largest. The depth of the grooves is 0.5mm-1mm. First, fill the grooves at the top of the board with organic gas absorbent, spread it evenly, compact it, make the top of the organic gas absorbent flush with the surface of the board, and scrape off the excess organic gas absorbent;

[0009] S4: aesthetic treatment, affix printed or patterned stickers and films to the surface of the flattened board to beautify the board, expel the air between the stickers, films and the board, and heat dry them to make the stickers and films close to the board;

[0010] S5: Resin packaging, after the resin is melted, it is mixed with the organic gas absorbent material and stirred, and after the bubbles are expelled by pressurization, it is spread on the board, and the organic gas absorbent, sticker, film and board are packaged, and the resin is dried;

[0011] S6: Processing the back of the plate. After turning the plate over, repeating steps S3 and S5 for the groove at the bottom of the plate, and coating the outer walls of the four sides of the plate with resin and drying.

[0012] S7: Grinding and polishing. After the resin on the six sides of the board is dried, grind and polish the resin on the surface of the board, and then pack and store.

[0013] Preferably, in S1, a microwave heater is used in the sealed treatment chamber to permeate and heat the plate, and the heating temperature is maintained at 40°C-45°C. During the heating process, the organic gas concentration in the sealed treatment chamber is continuously tested. When the organic gas concentration is as low as 0.1 mg / m 3 -0.3mg / m 3 , and after the concentration remains unchanged for a certain period of time, the heating process is stopped.

[0014] Preferably, TiO2 is used as a catalyst in S2 to catalytically decompose volatile organic gases, and metal mesh plates are arranged in layers in the desorption adsorption box, activated carbon particles are spread on the upper part of the metal mesh plates, and electric heating wires are fixed on the bottom of the metal mesh plates.

[0015] Preferably, in S2, an organic gas detector is arranged in the middle of the connecting pipe between the three-way valve and the absorption box. During the process of adsorption of organic gas by the desorption adsorption box, the organic gas detector is used to detect whether the gas at the end of the desorption adsorption box contains residual organic gas. If organic gas is detected, the electric heating wire is started to heat the metal mesh plate to desorb the organic gas adsorbed by the activated carbon particles, and the organic gas is drawn into the photocatalyst through the reflux fan for catalytic decomposition again, and the adsorption-desorption-photocatalytic decomposition process is repeated.

[0016] Preferably, in S3, the organic gas absorbent comprises calcium carbonate, titanium dioxide, a viscosity reducer, activated carbon powder and a flame retardant, and the mass ratio of calcium carbonate, titanium dioxide, a viscosity reducer, activated carbon powder and a flame retardant is 30:12:5:25:10.

[0017] Preferably, the sticker or film body is a transparent structure, and an environmentally friendly adhesive is provided on one side of the sticker or film for sticking to the plate.

[0018] Preferably, the temperature is maintained at 65°C-75°C during the resin drying process.

[0019] The beneficial effects of the present invention are:

[0020] The method for environmentally friendly treatment of the surface of office furniture proposed in the present invention firstly adopts continuous heating to force the organic gas in the board components of office furniture to volatilize, and uses photocatalytic decomposition, adsorption, desorption and photocatalytic decomposition again to treat the volatile organic gas in an environmentally friendly manner, thereby reducing the organic gas content in the board components of office furniture to a safe value. At the same time, stickers, films and organic gas absorbers are encapsulated in resin, which can not only continuously absorb the remaining organic gas volatilized in the board, but also improve the aesthetics of the board. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention provides a schematic diagram of the process flow of an environmentally friendly surface treatment method for office furniture. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example 1, reference Figure 1 , a method for environmentally friendly treatment of the surface of office furniture, comprising the following steps:

[0024] S1: Board processing: the cut and formed office furniture board parts are stacked in a sealed processing room. A microwave heater is used in the sealed processing room to penetrate and heat the board. The heating temperature is maintained at 40℃-45℃. During the heating process, the organic gas concentration in the sealed processing room is continuously tested. When the organic gas concentration is as low as 0.1mg / m 3 -0.3mg / m 3 After the concentration does not increase for a certain period of time, the heating process is stopped to promote the rapid volatilization of volatile organic gases, and a one-way air inlet valve is installed on the outer wall of one end of the sealed treatment chamber;

[0025] S2: Organic gas volatilization treatment, a one-way air outlet valve is installed at one end of the sealed treatment chamber away from the one-way air inlet, and an air pump is connected to the outlet end of the one-way air outlet valve, and the organic gas volatilized in the sealed treatment chamber is quickly pumped into the photocatalyst for catalytic decomposition, and TiO2 is used as a catalyst to catalytically decompose volatile organic gases. Layers of metal mesh plates are arranged in the desorption adsorption box, activated carbon particles are spread on the upper part of the metal mesh plates, and electric heating wires are fixed at the bottom of the metal mesh plates;

[0026] The end of the photocatalyst is connected to a desorption adsorption box, a three-way valve is installed at the end of the desorption adsorption box, one end of the three-way valve is connected to a reflux fan, the reflux fan is connected to the inside of the photocatalyst through a conduit, the other end of the three-way valve is connected to the absorption box, an organic gas detector is arranged in the middle of the connecting pipe between the three-way valve and the absorption box, during the process of adsorbing organic gas in the desorption adsorption box, the organic gas detector is used to detect whether the gas at the end of the desorption adsorption box contains residual organic gas, if organic gas is detected, the electric heating wire is started to heat the metal mesh plate, so that the activated carbon particles desorb the organic gas adsorbed by it, the organic gas is drawn into the photocatalyst through the reflux fan for catalytic decomposition again, and the adsorption-desorption-photocatalytic decomposition process is repeated, and the absorption box contains organic gas absorption liquid;

[0027] S3: Filling with absorbent: grooves are opened at the top and bottom of the board where the surface area is the largest. The depth of the grooves is 0.5mm-1mm. First, fill the groove at the top of the board with organic gas absorbent. The organic gas absorbent includes calcium carbonate, titanium dioxide, viscosity reducer, activated carbon powder and flame retardant. The mass ratio of calcium carbonate, titanium dioxide, viscosity reducer, activated carbon powder and flame retardant is 30:12:5:25:10. Spread the organic gas absorbent evenly and compact it so that the top of the organic gas absorbent is flush with the surface of the board. Scrape off the excess organic gas absorbent.

[0028] S4: aesthetic treatment, stickers or films with prints or patterns are pasted on the surface of the flattened board. The stickers or films are transparent, and environmentally friendly adhesive is provided on one side of the stickers or films that are pasted to the board. The board is beautified and packaged. After the air between the stickers or films and the board is exhausted, the stickers or films are heated to make them close to the board.

[0029] S5: Resin packaging, after the resin is melted, it is mixed with the organic gas absorbent material, stirred and mixed, pressurized to expel bubbles, spread on the board, and the organic gas absorbent, sticker, film and board are packaged, and the resin is dried at 65℃-75℃;

[0030] S6: Processing the back of the plate. After turning the plate over, repeating steps S3 and S5 for the groove at the bottom of the plate, and coating the outer walls of the four sides of the plate with resin, and drying the resin at a temperature of 65°C-75°C;

[0031] S7: Grinding and polishing. After the resin on the six sides of the board is dried, grind and polish the resin on the surface of the board, and then pack and store.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for environmentally friendly surface treatment of office furniture. It is characterized in that The following steps are involved: S1: Sheet material processing: the cut and formed office furniture sheet material parts are stacked in a sealed processing room at intervals and heated at a constant temperature to promote the rapid volatilization of volatile organic gases. A one-way air inlet valve is installed on the outer wall of one end of the sealed processing room; S2: Organic gas volatilization treatment, a one-way air outlet valve is installed at one end of the sealed treatment chamber away from the one-way air inlet, and an air pump is connected to the outlet end of the one-way air outlet valve to quickly draw the volatilized organic gas in the sealed treatment chamber into the photocatalyst for catalytic decomposition, the end of the photocatalyst is connected to a desorption adsorption box, a three-way valve is installed at the end of the desorption adsorption box, one end of the three-way valve is connected to a reflux fan, the reflux fan is connected to the inside of the photocatalyst through a conduit, and the other end of the three-way valve is connected to an absorption box, and the absorption box contains an organic gas absorption liquid; S3: Filling with absorbent: grooves are opened at the top and bottom of the board where the surface area is the largest. The depth of the grooves is 0.5mm-1mm. First, fill the grooves at the top of the board with organic gas absorbent, spread it evenly, compact it, make the top of the organic gas absorbent flush with the surface of the board, and scrape off the excess organic gas absorbent; S4: aesthetic treatment, affix printed or patterned stickers and films to the surface of the flattened board to beautify the board, expel the air between the stickers, films and the board, and heat dry them to make the stickers and films close to the board; S5: Resin packaging, after the resin is melted, it is mixed with the organic gas absorbent material and stirred, and after the bubbles are expelled by pressurization, it is spread on the board, and the organic gas absorbent, sticker, film and board are packaged, and the resin is dried; S6: Processing the back of the plate. After turning the plate over, repeating steps S3 and S5 for the groove at the bottom of the plate, and coating the outer walls of the four sides of the plate with resin and drying. S7: Grinding and polishing. After the resin on the six sides of the board is dried, grind and polish the resin on the surface of the board, and then pack and store.

2. The method for environmentally friendly surface treatment of office furniture according to claim 1, It is characterized in that In S1, a microwave heater is used in the sealed treatment chamber to permeate and heat the plate, and the heating temperature is maintained at 40°C-45°C. During the heating process, the organic gas concentration in the sealed treatment chamber is continuously tested. When the organic gas concentration is as low as 0.1 mg / m 3 -0.3mg / m 3 , and after the concentration remains unchanged for a certain period of time, the heating process is stopped.

3. The method for environmentally friendly surface treatment of office furniture according to claim 1, It is characterized in that TiO2 is used as a catalyst in the S2 to catalytically decompose volatile organic gases. Metal mesh plates are arranged in layers in the desorption adsorption box. Activated carbon particles are spread on the upper part of the metal mesh plates, and electric heating wires are fixed on the bottom of the metal mesh plates.

4. The method for environmentally friendly surface treatment of office furniture according to claim 1, It is characterized in that In S2, an organic gas detector is arranged in the middle of the connecting pipe between the three-way valve and the absorption box. During the process of adsorption of organic gas by the desorption adsorption box, the organic gas detector is used to detect whether the gas at the end of the desorption adsorption box contains residual organic gas. If organic gas is detected, the electric heating wire is started to heat the metal mesh plate to desorb the organic gas adsorbed by the activated carbon particles, and the organic gas is drawn into the photocatalyst through the reflux fan for catalytic decomposition again, and the adsorption-desorption-photocatalytic decomposition process is repeated.

5. The method for environmentally friendly surface treatment of office furniture according to claim 1, It is characterized in that In S3, the organic gas absorbent includes calcium carbonate, titanium dioxide, viscosity reducer, activated carbon powder and flame retardant, and the mass ratio of calcium carbonate, titanium dioxide, viscosity reducer, activated carbon powder and flame retardant is 30:12:5:25:

10.

6. The method for environmentally friendly surface treatment of office furniture according to claim 1, It is characterized in that The sticker and the packaging film body are transparent structures, and the sticker and the packaging film are pasted with environmentally friendly adhesive on one side.

7. The method for environmentally friendly surface treatment of office furniture according to claim 1, It is characterized in that The temperature of the resin is maintained at 65°C-75°C during the resin drying process.

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