KR101941969B1 - Eco-friendly flame retardant board using paper and method of manufacturing the same - Google Patents

Abstract

The present invention relates to an environmentally-friendly nonflammable plywood using paper and a manufacturing method thereof. According to the present invention, the manufacturing method comprises: a step of spraying a mixture of sodium silicate and a water-soluble water repellent over inner and outer sides of a corrugated cardboard, wherein a weight ratio of the corrugated cardboard, the sodium silicate, and the water-soluble water repellent is 130:50 to 100:2 to 15; and a step of drying the corrugated cardboard having the mixture sprayed thereon. Accordingly, a basic frame of the corrugated cardboard is used as it is to provide functionality such as living waterproofing, soundproofing, terminal insulation, and lightweight properties as well as nonflammable property, and thus, the environmentally-friendly nonflammable plywood is able to be used for various purposes due to excellent usefulness in building, finishing, interior, and furniture materials. Moreover, manufacturing and automation of a manufacturing process are easy, and thus, productivity is able to be largely enhanced. Moreover, being environmentally-friendly, the environmentally-friendly nonflammable plywood is able to create a safe space while reducing elements harmful to a human body, and is able to promote improvement of working efficiency and safety of a worker, and satisfy economic efficiency.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eco-friendly flame retardant plywood using paper,

The present invention relates to an environmentally friendly flame retardant plywood and a method of manufacturing the same. More particularly, the present invention relates to a flame retardant product having excellent economic efficiency and productivity using paper corrugated paper as a basic framework, an environmentally friendly flame retardant plywood using paper, ≪ / RTI >

Generally, a plywood used widely as a building material is widely used in buildings, but it has a fatal disadvantage that it is vulnerable to fire. Therefore, when a fire occurs, it can cause a high degree of personal injury due to the generation of high temperature and poisonous gas due to burning of the plywood.

In addition, building materials such as plywood are becoming increasingly concerned about well - being and health, and are demanding harmless and environmentally friendly to the human body. Therefore, building materials such as plywood need not only to reduce risks or damage from fire, but also to be harmless and environmentally friendly to humans.

In order to satisfy such an environment-friendly requirement, prior art for a flame-retarded paper board in order to reduce fire damage while using paper is disclosed in Korean Patent Publication No. 10-2014-0094269 entitled " Environment- Manufacturing method thereof " has been disclosed. This step is a step S1 in which 100 parts by weight of a nonflammable composition is added to a first stirring tank and heated to a temperature of 80 to 90 캜; 30 to 200 parts by weight of a paper board raw material containing at least one of pulp, paper, and waste paper is added to 100 parts by weight of the nonflammable composition in the first stirring tank; (S3) of adding a feedstock agent to the first stirring tank and stirring the first mixing raw material; And at least one additive selected from the group consisting of a hardening agent, a reinforcing agent, a softening agent, a dispersing agent, a dehydrating agent, and an aqueous adhesive is added to the first mixed raw material and stirred for 10 to 60 minutes to prepare a second mixed raw material And then mixing the second mixed raw material and the mineral raw material mixed with 1 to 20 parts by weight of the mineral powder and 1 to 20 parts by weight of the inorganic chemical with respect to 100 parts by weight of the nonflammable composition, Wherein the powder is composed of at least one of germanium, yellow loam, natural polymer compound, silica, dolomite and natural quartz, wherein the inorganic chemical is made by mixing at least one of sodium nitrate, alumina, borax and silicate with distilled water, At least one of palm kernel, palm tree root, palm tree root, and wood flour.

However, such a conventional technique does not use a paper board as a skeleton, but rather mixes paper board raw materials with other raw materials so as to be formed into a board, it takes a lot of time and effort to manufacture the board, .

These problems are not limited to building materials but are applied to all plywoods and boards such as finishing materials, interior materials and furniture materials.

In order to solve the above problems, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a waterproof, soundproof, heat-insulating, lightweight, It is possible to use it for various purposes due to its excellent efficiency in materials and furniture materials, and it is easy to manufacture, and automation of the manufacturing process is facilitated, which contributes greatly to improvement of productivity, and is environmentally friendly so as to reduce harmful elements It is aimed to make safe space possible, to improve work efficiency, to ensure the safety of workers, and to satisfy economic efficiency.

According to an aspect of the present invention, there is provided a method of manufacturing a paper cardboard comprising the steps of spraying a mixture of sodium silicate and a water-soluble water repellent agent on the inside and the outside of a paper corrugated cardboard, wherein the paper corrugated paperboard, 130: 50 to 100: having a weight ratio of 2 to 15; And drying the paper corrugated paper on which the mixture is sprayed. The present invention also provides a method for producing an environmentally flame retardant plywood using paper.

The step of spraying the mixture on the paper corrugated paperboard can be produced by pressing and molding the paper corrugated paperboard by drying a mixture of paper and vegetable starch in a weight ratio of 8 to 12: 1.

The step of spraying the mixture on the paper corrugated cardboard may include 1 to 5 g of the silicone water repellent agent and 1 to 10 g of the acrylic water repellent agent when the water repellent agent is based on 130 g of the paper corrugated paper.

The step of drying the paper corrugated cardboard comprises: removing moisture from the corrugated cardboard paper by spraying the mixture at 150 to 190 ° C for 1 to 2 minutes in an electric heating furnace; And heating the paper corrugated paper in which the mixture is sprayed by heating at 150 to 190 ° C for 1 to 2 minutes by hot air after completion of heating in the electric heating furnace.

Wherein the step of drying the paper corrugated cardboard further comprises: before the step of removing moisture from the electric heating furnace, the paper corrugated cardboard is dried in a state in which the hollow is vertically set, air blown downward from the blower located above the paper corrugated cardboard And removing the mixture filled in the hollow of the paper corrugated cardboard by the corrugated cardboard.

The step of drying the paper corrugated cardboard may further include cooling the air corrugated cardboard at room temperature for 1 to 2 minutes after the hot air drying step.

The paper corrugated paperboard is moved to the lower side of the spray by the conveyor in a state where the corrugated paperboard is vertically set up by the jig so as to be vertical so that the mixture is sprayed downward by the spray to be applied to the outside of the paper corrugated cardboard and the inside of the hollow , The paper corrugated paper on which the mixture is sprayed is moved to the lower side of the first blower by the conveyor so that the mixture is separated from the hollow of the paper corrugated paper by the air blown from the first blower, The paper corrugated paperboard is moved to the inside of the electric heating furnace by the conveyor so that water is removed by heating at 150 to 190 ° C for 1 to 2 minutes in the electric heating furnace, By the hot air drier, Stand 1-2 minutes sikimyeo hot air heated and dried while, by moving the corrugated paper toward the second fan by the conveyor, wherein the can be cooled in air at room temperature for 1-2 minutes by the second blower.

According to another aspect of the present invention, there is provided an eco-friendly flame retardant plywood using paper, which is produced by the method of manufacturing an environmentally flame resistant flame retardant plywood using paper according to one aspect of the present invention.

According to the eco-friendly flame retardant plywood using the paper according to the present invention and the method of manufacturing the same, the paper corrugated board is used as it is as a basic skeleton to impart functions such as water resistance, sound insulation, heat insulation, light weight, It can be used for various purposes due to its excellent efficiency in interior materials and furniture materials and is easy to manufacture and can be easily automated for the manufacturing process and contributes to improvement of productivity and is environmentally friendly and harmful to the human body It is possible to securely create a space while reducing workload, improving work efficiency and safety of workers, and satisfying economical efficiency.

1 is a flowchart showing a method of manufacturing an environmentally flame resistant flame retardant plywood using paper according to an embodiment of the present invention.
2 is a schematic view showing an apparatus used in a method of manufacturing an environmentally flame-resistant flame retardant plywood using paper according to an embodiment of the present invention.
Fig. 3 is a test report on flame-retardant performance of an environment-friendly flame retardant plywood using paper according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. It should be understood that the present invention is not limited to these specific embodiments but includes all changes, equivalents, and alternatives included in the technical idea of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or corresponding elements, and redundant description thereof will be omitted .

According to one embodiment of the present invention, an environmentally flame resistant flame retardant plywood is produced by a method of manufacturing an environmentally flammable flame retardant plywood using paper according to an embodiment of the present invention, Spraying a mixture of a water-soluble water repellent agent and drying, wherein paper corrugated board, sodium silicate and water-soluble water repellent agent have a weight ratio of 130: 50-100: 2-15. Here, when the weight of the paper corrugated cardboard, the sodium silicate, and the water-soluble water repellent is out of the range, it is difficult to exhibit a uniform flame retarding effect over the entire paper corrugated paperboard, and the physical properties and quality of paper corrugated paperboard are difficult to maintain. As the sodium silicate, for example, water glass No. 3 can be used, and as a water-repellent water-repellent agent, a water seal product can be used.

The paper corrugated paper is formed in a plurality of hollows in the inside, and the corrugated paper of various types and structures including all of the corrugated cardboards including the bifurcated two-layered hollow structure or the three- And can have various sizes, including 30 cm in width and length, respectively. Paper corrugated paperboard can be produced, for example, by pressing and molding by drying a mixture of paper and vegetable starch in a weight ratio of 8 to 12: 1. Here, the vegetable starch can play a role of a thickener and an extender, and is eco-friendly because it is harmless to the human body together with paper. If the weight ratio of the paper and the vegetable starch is out of the above range, it is difficult to obtain the physical properties required for paper corrugated paperboard, and it is difficult to manufacture paper corrugated paperboard.

Water-based water repellent agents can be used, for example, water seal products. Other examples include 1 to 5 grams of a silicone water repellent and 1 to 10 grams of an acrylic water repellent agent based on 130 grams of paper corrugated paper. If the ratio is out of the range, it is difficult not only to exhibit a uniform flame retarding effect over the entire paper corrugated paper, but also to fail to exhibit flame retarding effect to deteriorate the stability, and the paper corrugated paper may not have a desired quality as a product.

After the mixture is sprayed on paper corrugated paper, the water is removed from the electric heating furnace at 150 to 190 ° C for 1 to 2 minutes, and then dried by hot air drying at 150 to 190 ° C for 1 to 2 minutes in a hot air drier. Also, after the mixture is sprayed onto the paper corrugated paper, the mixture filled in the hollow of the paper corrugated paper is separated and removed by the air blown downward toward the paper corrugated paper set up vertically from the blower before the moisture is removed from the electric heating furnace , Hot air is heated, and after drying, air is cooled at room temperature for 1 to 2 minutes to enable handling. Here, the electric heating furnace may be composed of a heating furnace for heating by radiating infrared rays by electricity. In this way, it is possible to effectively separate and remove the mixture filled in the hollow of the paper corrugated cardboard set up vertically so as to be vertical from the hollow by the self-weight and the air blowing force of the air, and to remove water without applying external force such as air blowing in the electric heating furnace So that thermal deformation is minimized even if heat is applied for drying, and drying is firstly performed in an electric heating furnace so as to minimize deformation to the paper corrugated board, and then the moisture can be completely removed by drying by hot air heating do.

1 is a flowchart showing a method of manufacturing an environmentally flame resistant flame retardant plywood using paper according to an embodiment of the present invention.

As shown in FIG. 1, a method for manufacturing an environmentally flame resistant flame retardant plywood using paper according to an embodiment of the present invention is a method for manufacturing an environmentally flame resistant flame retardant plywood using paper according to an embodiment of the present invention. Then,

First, a mixture of sodium silicate and a water-soluble water repellent agent is sprayed on the inside and the outside of the paper corrugated cardboard, and the paper corrugated board, the sodium silicate, and the water-soluble water repellent agent have a weight ratio of 130: 50-100: 2-15 (S11) . When the weight of the paper corrugated cardboard, the sodium silicate, and the water-soluble water repellent is out of the range, it is difficult to exhibit a uniform flame retarding effect over the entire paper corrugated paperboard, and it is difficult to maintain the quality of the paper corrugated paperboard.

Step S11 of spraying the mixture onto paper corrugated paperboard is made by pressing and molding paper corrugated paperboard by drying a mixture of paper and vegetable starch in a weight ratio of 8 to 12: 1. Here, a mixture of paper and vegetable starch may be dried and then subjected to press and molding processes for the production of known paper corrugated paper using the same as a raw material. Here, when the weight ratio of paper and vegetable starch is out of the range, it is difficult to obtain the physical properties required for paper corrugated paperboard, and it is difficult to manufacture paper corrugated paperboard.

In addition, the step (S11) of spraying the mixture on the paper corrugated cardboard may include 1 to 5 g of the silicone water repellent agent and 1 to 10 g of the acrylic water repellent agent when the water repellent agent is based on 130 g of paper corrugated paperboard. If the weight ratio of the silicone water repellent agent and the acrylic water repellent agent is out of the range, it is difficult to exhibit a uniform flame retarding effect throughout the paper corrugated cardboard, the flame retarding effect can not be exhibited properly and the stability is deteriorated. You can not have it.

Then, the paper corrugated paper in which the mixture is sprayed is dried (S12, S13, S14).

The step of drying the paper corrugated cardboard is performed by heating the paper corrugated paper with the mixture at 150 to 190 ° C for 1 to 2 minutes to remove moisture by heating in an electric heating furnace (S13) , And drying the paper corrugated paper by spraying the mixture at 150 to 190 DEG C for 1 to 2 minutes with hot air to dry (S14).

The step of drying the paper corrugated cardboard is performed by air blown downward from the blower located above the paper corrugated cardboard in a state in which the paper corrugated paperboard is vertically placed with the hollow before the step (S13) And removing the mixture filled in the hollow of the paper corrugated cardboard (S12).

After the step of drying the paper corrugated cardboard, the step (S15) may be followed by cooling with air at room temperature for 1 to 2 minutes. Thus, economics of cooling for paper corrugated paper facilitates handling for subsequent.

Referring to FIG. 2, a method of manufacturing an eco-friendly flameproof plywood using paper according to an embodiment of the present invention can utilize an automatic system. For example, when the paper corrugated cardboard 1 is jig 12, So that the mixture is sprayed downward by the spray 13 to be applied to the outside of the paper corrugated cardboard 1 and to the inside of the hollow, The paper corrugated cardboard 1 on which the mixture is sprayed is moved by the conveyor 11 to the lower side of the first blower 14 so that the mixture from the hollow of the paper corrugated cardboard 1 is blown by the air blown from the first blower 14. [ And the paper corrugated cardboard 1 is moved to the inside of the electric heating furnace 15 by the conveyor 11 so that the moisture content of the paper corrugated cardboard 1 is reduced by heating for 1 to 2 minutes at 150 to 190 ° C in the electric heating furnace 15 Lt; / RTI > By moving the corrugated cardboard 1 to the inside of the hot air dryer 16 by the conveyor 11, hot air is heated by the hot air dryer 16 at 150 to 190 DEG C for 1 to 2 minutes to dry the paper corrugated cardboard 1 Is moved to the side of the second blower 17 by the conveyor 11 so that it can be cooled by the air at room temperature for 1-2 minutes by the second blower 17. [

The jig 12 can support the paper corrugated cardboard 1 to minimize contact by point contact or line contact or the like, and can also have various contact support structures to minimize contact. The jig 12 may have a structure fixed to the belt of the conveyor 11 so as not to be undesirably separated from the belt of the conveyor 11, for example, so that the jig 12 can perform an endless track motion together with the belt of the conveyor 11, Lt; RTI ID = 0.0 > 11). ≪ / RTI > The spray 13 may be provided with a plurality of spray nozzles to spray downwardly the mixture supplied by the pumping force of the feed pump from the tank filled with the mixture. The electric heating furnace 15 can perform primary drying on the paper corrugated cardboard 1 by infrared rays emitted from an infrared lamp provided inside the chamber. The hot air dryer 16 can perform secondary drying on the paper corrugated cardboard 1 by hot air emitted from the hot air provided inside the chamber. A plurality of position sensors (not shown) for detecting the positions of the paper corrugated cardboard 1 and the jig 12 are provided on the conveyor 11 and a plurality of temperature sensors Can be installed. Accordingly, the control unit (not shown) receives the detection signals of the position sensor and the temperature sensor, and controls the conveyor 11, The spray 13, the first blower 14, the electric heating furnace 15, the hot air dryer 16, the second blower 17, and the like.

FIG. 3 is a graph showing the flame resistance performance standard (No. 2016-138 of National Security Treaty) issued by the Korea Fire & Resonance Technology Institute (No. 1705452, June 29, 2017) for the environmentally flammable plywood using paper according to an embodiment of the present invention. It is a test report that tests the flammability performance according to Article 7. An example of the test used here was to spray a mixture of soda silicate, silicone water repellent and acrylic water repellent over the inside and outside of the paper corrugated cardboard with a ratio of 130: 77: 1: 5 to the paper cardboard, sodium silicate, silicone water repellent, So that the mixture is separated from the hollow of the paper corrugated cardboard by air blowing for 1 minute and 30 seconds in a state in which the hollow corrugated cardboard is set so that the hollow is vertical, The paper corrugated paperboard was heated by hot air for 1 minute and 30 seconds at 170 ° C by a hot air drier and dried. And cooled with air at room temperature for 1 minute and 30 seconds. It can be seen that the flame retardancy performance of this embodiment is satisfactory.

According to the eco-friendly flame retardant plywood using the paper according to the present invention and the method of manufacturing the same, the paper corrugated cardboard is used as it is as a basic skeleton to impart functions such as waterproofing, soundproofing, warming, lightweight, , Finishing materials, interior materials, and furniture materials, it can be used for various purposes, is easy to manufacture, and can easily contribute to productivity improvement by facilitating automation of the manufacturing process.

Further, according to the present invention, it is possible to provide a safe space while reducing harmful elements to the human body by making it eco-friendly, and it is possible to improve the working efficiency, the safety of the worker, and satisfy the economical efficiency.

Although the present invention has been described with reference to the accompanying drawings, various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the above-described embodiment, but should be determined by the claims and equivalents thereof.

11: Conveyor 12: Jig
13: Spray 14: Blower
15: electric heating furnace 16: hot air dryer
17: blower

Claims (6)

Spraying a mixture of sodium silicate and a water-soluble water repellent over the entire inside and outside of the paper corrugated cardboard, wherein the paper corrugated board, the sodium silicate and the water-repellent water repellent have a weight ratio of 130: 50-100: 2-15; And drying the paper corrugated paper on which the mixture is sprayed,
The step of spraying the mixture on the paper corrugated paperboard is characterized in that the paper corrugated paperboard is produced by pressing and molding by drying a mixture of paper and vegetable starch in a weight ratio of 8 to 12:
The step of spraying the mixture on the paper corrugated cardboard may include 1 to 5 g of the silicone water repellent and 1 to 10 g of the acrylic water repellent agent when the water repellent agent is based on 130 g of the paper corrugated paper,
Drying the paper corrugated cardboard,
Removing water from the paper corrugated paper by spraying the mixture in an electric heating furnace at 150 to 190 ° C for 1 to 2 minutes; And
After the step of heating in the electric heating furnace is completed, drying the paper corrugated paper by spraying the mixture with hot air at 150 to 190 ° C for 1 to 2 minutes
Drying the paper corrugated cardboard,
Wherein the paper corrugated paperboard is filled in the hollow of the paper corrugated cardboard by air blown downward from the blower located above the paper corrugated cardboard in a state in which the paper corrugated paperboard is vertically set so that the hollow is vertical, Further comprising the step of removing the mixture. ≪ RTI ID = 0.0 > 8. < / RTI >
delete delete The method according to claim 1,
Further comprising the step of cooling the paper corrugated paper with air at room temperature for 1 to 2 minutes after drying the paper corrugated paperboard. Spraying a mixture of sodium silicate and a water-soluble water repellent over the entire inside and outside of the paper corrugated cardboard, wherein the paper corrugated board, the sodium silicate and the water-repellent water repellent have a weight ratio of 130: 50-100: 2-15; And drying the paper corrugated paper on which the mixture is sprayed,
The step of spraying the mixture on the paper corrugated paperboard is characterized in that the paper corrugated paperboard is produced by pressing and molding by drying a mixture of paper and vegetable starch in a weight ratio of 8 to 12:
The step of spraying the mixture on the paper corrugated cardboard may include 1 to 5 g of the silicone water repellent and 1 to 10 g of the acrylic water repellent agent when the water repellent agent is based on 130 g of the paper corrugated paper,
The paper corrugated paperboard is moved downward by the conveyor 11 in a state where the corrugated paperboard is vertically held by the jig 12 so that the corrugation is vertical so that the mixture is sprayed downward by the spray 13 The paper corrugated paper is ejected from the first blower 14 by being moved to the lower side of the first blower 14 by the conveyor 11 so as to be applied to the outside of the paper corrugated cardboard and the hollow inside thereof, (15) by moving the paper corrugated paperboard to the inside of the electric heating furnace (15) by the conveyor (11) so that the mixture is separated from the hollow of the paper corrugated paper by air, The water is removed by heating at 190 ° C for 1 to 2 minutes and the paper corrugated paperboard is moved to the inside of the hot air dryer 16 by the conveyor 11 , And heated by the hot air dryer (16) at 150 to 190 ° C. for 1 to 2 minutes to dry the paper corrugated paperboard. The paper corrugated paperboard is moved to the second blower (17) side by the conveyor (11) Is cooled with air at room temperature for 1 to 2 minutes by means of a heat exchanger (17). An eco-friendly flame-retardant plywood made by using the paper according to any one of claims 1, 4, and 5, which is produced by the method of manufacturing an environmentally flame resistant flame retardant plywood.

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