KR20150114596A - Functional slate and its manufacturing method using hygiene products - Google Patents

Abstract

The present invention relates to a slate used in connecting the roof or wall of a building and, more specifically, to a functional slate manufactured using defective hygiene products generated in a manufacturing process and hygiene products discarded after use among hygiene products such as wet strength paper tissue and diapers composed of pulp including plastics and super absorbent polymers (SAPs), and to a manufacturing method thereof. The functional slate using hygiene products according to the present invention is environmentally friendly by being manufactured without asbestos, which is a component harmful to a human body, has strength enhanced by making an upper layer of synthetic resin or synthetic fiber, and provides the effect of creating a hygienic environment and the effect of excellent heat insulation by bonding lower layers containing pulp and SAPs, thereby efficiently removing humidity generated between a roof or a wall and the slate.

Description

TECHNICAL FIELD The present invention relates to a functional slate and a method for manufacturing the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slate used to connect a roof or a wall surface of a building, and more particularly, to a slate used for connecting a roof or a wall of a building, (Hereinafter referred to as "bad sanitary articles") and sanitary articles (hereinafter referred to as "sanitary articles") which are disposed of after being used, among sanitary articles such as heavy-duty tissue or diapers And to a process for producing the functional slate.

Generally, slate refers to asbestos slate produced by mainly making asbestos and cement. Such asbestos slate has a low temperature and efficiency due to relatively low heat insulation and insulation, and has a disadvantage that it is easily broken due to weak durability. There was a problem that the completed asbestos slate was easily broken even by a slight impact during storage and transportation.

In addition, since the asbestos slate has a disadvantage that the strength of the asbestos which is the main raw material is lowered and the aging corrosion is severe, it can not be used for a long period of time, resulting in economic loss and there is a report that asbestos itself induces lung cancer and pneumoconiosis. The use of asbestos slats is regulated.

Korean Patent No. 0777686 discloses a new slate which can be used in place of such an asbestos slate. In the Korean Patent No. 0777686, magnesium oxide (MgO), magnesium chloride (MgCl 2), magnesium silicate (MgSiO 3), sulfuric acid (H 2 SO 4) , Quartz sand, gypsum powder, and glass fiber cloth.

However, the unsweetened slate has a problem in that the specific gravity of the magnesium compound is increased, and the powder of sulfuric acid and glass fiber due to natural pulverization may be harmful to the human body.

Korean Patent No. 1001139 and Korean Patent No. 0876931 disclose a fiber plywood slate using waste synthetic resin, synthetic fiber, and waste synthetic fiber. Such a fiber plywood slate is used to reduce the production cost by recycling resources, And has a uniform strength that does not easily break even under strong pressure.

In addition, the asbestos-free slate and the fiber plywood slate produced without using asbestos have a problem in that foreign matter accumulates and insects are generated when the moisture between the roof and the slate and the slate overlap.

Korean Patent No. 1001139 Korea Patent No. 0876931

Disclosure of Invention Technical Problem [8] The present invention has been made in order to solve the above-described problems in the prior art, and it is an object of the present invention to provide a method of manufacturing a semiconductor device which can reduce manufacturing costs by eliminating asbestos, The present invention is intended to provide an environmentally friendly functional slate which is less hygroscopic due to less occurrence of fungi and insects due to the occurrence of heavy metals and less in occurrence of the four heavy metals.

It is also an object of the present invention to increase the bonding force between the upper layer and the lower layer by forming recessed grooves on the lower surface of the upper layer for attaching the lower layer made by recycling the sanitary article to the upper layer made of synthetic resin or synthetic fiber material.

In order to realize the above-mentioned object, the present invention provides an adhesive layer 20 applied to the lower surface of the upper layer 10, an adhesive layer 20 applied to the lower surface of the upper layer 10, 20 to 35 parts by weight of pulp, 20 to 35 parts by weight of SAP (Super Absorbent Polymer), 20 to 35 parts by weight of PP and PE (super absorbent polymer), 100 parts by weight of pulverized product of sanitary ware, 30 to 50 parts by weight of a powder of a sanitary ware comprising 30 to 50 parts by weight of an additive, 5 to 15 parts by weight of an additive, and 30 to 50 parts by weight of a thermoplastic resin, wherein the additive is at least one of wax, A functional slurry using a sanitary article.

The method of manufacturing the functional slate of the present invention includes the steps of producing an upper layer 10 formed without reclaiming asbestos and formed by repeatedly vertically, horizontally, and repeatedly repeating "#" (S200) of forming a slat bottom layer (30) having an upper surface corresponding to a lower surface of the upper layer (10) using a sanitary article and applying an adhesive to the lower surface of the upper layer (10) And a step (S300) of thermally welding the upper surface of the lower layer (30) to the lower surface of the adhesive layer (20).

The functional slate using the sanitary article according to the present invention as described above is environmentally friendly because it is manufactured by excluding asbestos which is a harmful component to the human body and the upper layer is made of synthetic resin or synthetic fiber to increase the strength, It is possible to effectively remove the moisture generated between the roof or the wall surface and the slate, thereby providing a corrosion or hygienic environment and an excellent insulation and insulation effect.

1 is a perspective view of a functional slate according to a preferred embodiment of the present invention;
2 is a bottom perspective view of an upper layer according to a preferred embodiment of the present invention.
FIG. 3 is a flowchart showing a schematic manufacturing method of a functional slate according to a preferred embodiment of the present invention. FIG.
4 is a flowchart showing a method of manufacturing a functional slate according to a preferred embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slate used for connecting a roof or a wall surface of a building, and is characterized in that strength, insulation, insulation, durability and hygroscopicity are superior to conventional slats, (Hereinafter referred to as "poor sanitary articles") and sanitary articles (hereinafter referred to as "bad sanitary articles") produced during the manufacturing process of sanitary articles such as pulp-containing wet tissue paper, plastics and SAP, diapers and sanitary napkins (Hereinafter, referred to as 'bad sanitary article' and 'waste sanitary article' are referred to as 'sanitary article' and 'waste sanitary article', respectively). , And when referring to both 'bad hygiene products' and 'new hygiene products', it is called 'hygienic goods').

Specifically, the functional slate (1) of the present invention comprises

An adhesive layer 20 applied to a lower surface of the upper layer 10 and a lower layer 30 adhered to a lower surface of the upper layer 10, The upper layer 10 is made of a material such as synthetic resin or synthetic fiber that can be discarded or recycled and is then reworked to have a thickness of 1.5 to 2.5 mm, and the lower layer 30 is pulverized and reworked to have a thickness of 1.5 to 2.5 mm And the upper layer 10 and the lower layer 30 are combined with each other.

The top layer 10 of the present invention comprises

Waste materials such as waste synthetic resin or waste synthetic fiber are collected by cutting, crushing and re-processing without using asbestos, which is one of the main raw materials of conventional slate. Any material may be used as long as it is manufactured using a raw material containing no harmful substance to the human body.

2, the lower surface of the upper layer 10 is formed by repeating upward, downward, leftward and rightward repeatedly the "#" shaped recessed groove 12, The frictional force and the contact area are increased to realize the effect of increasing the bonding force.

In addition, the shape of the recessed / recessed groove 12 is not limited to the shape of "# ", but may be formed by a slanted or semi-circular recessed groove 12 and a nonwoven fabric (not shown) So that the bonding force with the lower layer 30 can be increased.

It is also possible to attach the nonwoven fabric to the lower surface of the upper layer 10 and attach the nonwoven fabric to the lower surface of the upper layer 10 on which the uneven groove 12 is formed to bond the lower layer 30 Moisture may be absorbed into the lower layer 30 through a small gap formed due to the bonding by the nonwoven fabric, although the bonding force may be weakened due to a seasonal temperature change on the bonding surface between the upper layer 10 and the lower layer 30, Thereby realizing the effect of maintaining the bonding strength between the upper layer 10 and the lower layer 30. [ At this time, the bonding between the nonwoven fabric and the lower layer 30 may be performed only by heat fusion, and the adhesive may be applied and thermally fused.

The adhesive layer 20 of the present invention is applied to the lower surface of the upper layer 10 and formed when the lower layer 30 or the nonwoven fabric is adhered to the lower surface of the upper layer 10. When the nonwoven fabric is adhered to the lower surface of the upper layer 10, That is, a surface to which the lower layer 30 and the nonwoven fabric are joined, is formed for bonding the upper layer 10 and the lower layer 30. [

The bonding layer 20 of the present invention preferably uses a thermosetting material because it can increase the bonding strength with heat when bonding the upper layer 10 to the nonwoven fabric and the lower layer 30. The thermosetting Anything that applies the substance is acceptable.

The bottom layer 30 of the present invention comprises

30 to 50% by weight of a sanitary ware pulverized product comprising 20 to 35 parts by weight of pulp, 20 to 35 parts by weight of SAP (Super Absorbent Polymer) and 30 to 50 parts by weight of PP and PE, 5 to 15% by weight of an additive and 30 to 50% by weight of a thermoplastic resin.

Most of the sanitary articles used in the present invention are divided into bad hygiene articles which are manufactured in one-time use, and which are used in the manufacturing process, and which are discarded. Bad sanitary products have no treatment options other than incineration, and they do not contain foreign substances and thus have no process prior to the grinding operation. However, since the waste sanitary product includes foreign matters such as dirt, it is necessary to remove or separate foreign matters before the grinding operation. In this case, there is a method of using water or a method of treating in a dry state without using water.

In connection with the above, the method of using water during the process of removing or separating foreign substances from the sanitary articles of the present invention is performed to prevent absorption of water by the SAP contained in the sanitary article. The absorption-inhibiting treatment is generally carried out in the form of a starch, a cellulose or a polyacrylic acid salt, a polyvinyl alcohol, a polyacrylamide, It is preferable to treat the absorption inhibitor mixture which suppresses the absorption power of the SAP composed of a synthetic resin such as ethylene or polyoxyethylene.

At this time, the absorption inhibitor mixture used in the absorption inhibition treatment generally uses a known absorption inhibitor mixture, but the present invention is applicable to a mixture of an absorption inhibitor mixture in which water and wastewater are mixed in a certain ratio or 70 to 90% by weight of water and 30 to 10% % Is a mixed absorption inhibitor.

In particular, among the absorption inhibitor mixture, the absorption inhibitor mixed with water and a certain ratio of the water is lowered in absorption capacity of SAP having an absorption capacity of several hundred times the weight of SAP, An effect of suppressing moisture absorption can be obtained. The salinity of the jugular water is preferably at least 20%, and the ratio of water to jugular water is freely adjustable by those skilled in the art according to the regulation of the absorption suppression treatment time according to the ratio of the water as the absorption inhibitor.

In addition, the absorption inhibitor mixture, in which water and calcium chloride are mixed at a certain ratio, decomposes SAP, which is a polymer, into a low molecular weight material, and uses calcium chloride as an absorption inhibitor to dissolve water to partially decompose SAP An effect of lowering the absorption power can be obtained.

At this time, if the ratio of calcium chloride contained in the absorption inhibitor mixture is less than 10% by weight, the absorption inhibiting power against SAP is weak, so that the absorbent article absorbs excessive amount of water during absorption inhibition treatment due to SAP, It is preferable to use a mixture of the absorption inhibitor having a ratio of 70 to 90% by weight of water and 30 to 10% by weight of calcium chloride because the concentration of calcium chloride is excessively high and an excessive amount of calcium chloride is contained in the pulverized product after crushing.

In addition, after the absorption suppression treatment, the cleaning treatment is carried out for washing, which is treatment for removing solid matter which may be contained in the waste sanitary article, In the method of washing the soil, any conventional cleaning treatment method may be used. In addition, according to the judgment of a person skilled in the art, the washing treatment may be carried out before the absorption suppressing treatment, and in the case of treating the washing treatment before the absorption suppressing treatment, it is obvious that the treatment is performed in a dry state without using water, It is also possible to perform absorption suppression and washing treatment on the waste sanitary article in the case where solid dirt is not generated.

In connection with the above, the sanitary article is pulverized into a fine fiber material form, and the lower layer 30 can be manufactured by mixing the additive and the thermoplastic resin without the organic solvent or the foaming agent and melting and extrusion molding, so that an environmentally friendly product can be produced .

In general, foaming agents use petrochemical products, which are environmentally harmful substances, which can not be recycled, as their main raw materials. These materials can not be regenerated and they can pollute the environment by polluting the soil or water quality by dissolving harmful substances due to heat during combustion. there is a problem. In addition, harmful chemical components harmful to the human body from the manufacturing process to the finished product are generated in a large amount and can not be removed over time, resulting in health problems for workers and users.

However, the SAP contained in the sanitary ware pulverized product of the present invention is a polymer having a three-dimensional network structure and having a large amount of hydrophilic groups and is a material capable of absorbing a large amount of water without being dissolved in water. The effect of reducing the specific gravity while maintaining the thickness of the lower layer 30 is realized.

In addition, SAP is also known as SAM (Super Absorbency Material), AGM (Absorbent Gel Material), etc. It is hydrophilic and has net-shaped network structure. It can absorb about 1000 times its own weight. It does not discharge water even if it is added. On the other hand, pulp absorbs a large amount of water quickly but releases a small amount of water when it absorbs a certain amount of water.

That is, since the lower layer 30 of the present invention is produced by mixing pulp and SAP, moisture is absorbed in the summer when moisture in the air is high and moisture between the roof or wall and the slate is removed. In winter, It is evaporated through pulp into dry air.

In addition, the pulp of the sanitary ware pulverized product of the present invention is a natural pulp generally constituted of sanitary articles and is an aggregate of cellulose fibers obtained by mechanical, chemical or intermediate methods in wood or other fiber plants, It is preferable to mix it with SAP. It is also possible for those skilled in the art to mix natural pulp and SAP directly without pulverizing sanitary ware.

If the ratio of the pulverized product of the sanitary article contained in the lower layer 30 is less than 30% by weight, the composition ratio of the pulp and the SAP is so weak that the proportion of the thermoplastic resin increases, And the thickness and weight of the lower layer 30 may increase. If the amount of the crushed product is more than 50 wt%, it is preferable to use the crushed product of sanitary goods having a ratio of 30 to 50 wt%.

Further, the lower layer 30 of the present invention is preferably configured to further contain 1 to 5% by weight of ILLITE, and it is preferable to use ILLITE in the form of powder having an average particle size of 1000 mesh.

Generally, Illite is characterized by its characteristic of generating anion in itself, its excellent adsorption and decomposition ability for specific radioactive materials, its characteristic of adsorbing and deodorizing various heavy metals and toxic gases, and sterilizing by viruses, bacteria and fungi And odor elimination, heat accumulation and heat insulation function, so that it has a low thermal conductivity and excellent thermal stability, good elasticity, and good lubrication property.

That is, the lower layer 30 produced by mixing the primary powder is excellent in bacteriostatic action and odor removal between the roof or wall surface and the slate, and realizes the effect of further strengthening the bonding of the composition of the lower layer 30.

At this time, if the proportion of the one-light contained in the lower layer 30 is less than 1 wt%, the composition ratio is insufficient and the bacteriostatic action and the offensive odor removal effect are insignificant. If the proportion is more than 5 wt% ) Is lowered, it is preferable to have a ratio of 1 to 5% by weight.

The additives of the present invention

Wherein the wax is at least one selected from the group consisting of polyethylene wax, polypropylene wax, amids wax and Derurex wax, which is composed of at least one of wax, plasticizer, and edible oil and is added in an amount of 5 to 15 wt% The lower layer 30 is excellent in smoothness in a solid state, and as a result, the lower layer 30 can be easily attached to the upper layer 10.

Further, in order to reduce the manufacturing cost of the wax, it is preferable to use PE wax generally used, but it is preferable to use or mix PE wax or Derurex wax.

The plasticizer of the present invention is composed of at least one of dioctyl phthalate (DOP), diisononyl phthalate (DINP), dioctyl adipate (DOA), trioctyl trimellitate (TOTM), and tricresyl phosphate It is preferable to mix two or more of them so as to have excellent properties such as excellent heat resistance, resistance to volatility, stability and flame retardancy.

In connection with the above, the edible oil of the present invention is used as a kneading preparation and is added in a spraying manner so as to efficiently mix the synthetic resin and the pulp, and can be installed in a plurality of equally spaced intervals along the conveying direction, It is preferable that the spray is evenly distributed in the spiral direction at an equal point, and it is preferable to use the waste edible oil to reduce the cost.

If the proportion of the additive is less than 5% by weight, the degree of smoothness of the surface is decreased, and the difficulty of molding and mixing are not efficiently achieved. If the additive is more than 15% by weight, It is preferable to have a ratio of 5 to 15% by weight.

The thermoplastic resin of the present invention

Polyvinyl chloride resin, polystyrene (PS) resin, polyethylene (PE) resin, polypropylene (PP) resin, acrylic resin and polyamide resin. And it is possible to further enhance the tensile strength and flexural strength of the lower layer 30 by adding to PE and PP of the sanitary article pulverized product.

Most preferably, the thermoplastic resin is composed of at least one of a polyethylene (PE) resin and a polypropylene (PP) resin which is the same as the PE and the PP contained in the sanitary ware pulverized product, And the effect of facilitating mixing by reducing the sense of heterogeneity.

If the proportion of the thermoplastic resin contained in the base layer is less than 30% by weight, the proportion of the crushed product of the sanitary article increases, thereby increasing the thickness and weight of the lower layer 30. If the proportion exceeds 50% The pulp and SAP composition ratio is so low that the ratio of the pulverized product to the pulverized product is so low that the water absorption capacity of the lower layer 30 to be finally formed is lowered and the rate of dimensional change is increased. .

In connection with the above, the lower layer 30 of the present invention may contain 9 to 17% by weight of pulp, 9 to 17% by weight of SAP, a thermoplastic resin 46 To 46 wt%, additives 5 to 15 wt%, and ILLITE 1 to 5 wt%. That is, when pulp and SAP are directly introduced without using the sanitary product pulverized product, it is also possible to manufacture them with such a composition ratio.

A method of manufacturing a slate using the sanitary article of the present invention

(S100) of producing an upper layer (10), which is manufactured without containing asbestos and is formed by repeatedly vertically, horizontally and repeatedly repeating upward and downward and repeatedly a "#" shaped recessed groove (12) A step (S200) of forming a slat bottom layer 30 having a top surface corresponding to a lower surface of the adhesive layer 20 (step S200); applying an adhesive to the lower surface of the upper layer 10 to form an adhesive layer 20; (S300) of thermally welding the upper surface of the lower layer (30) to the lower surface.

Specifically, first, the step S100 of manufacturing the upper layer 10

Wastes such as waste synthetic resin or waste synthetic fibers are collected and sorted, cut or crushed, and re-processed through the other surface to form a thickness of 1.5 to 2.5 mm, and a "#" shaped recessed groove 12 is formed on the lower surface .

Next, step S200 of manufacturing the lower layer 30

The sanitary article is formed into a thickness of 1.5 to 2.5 mm and is subjected to a sorting step S210 and a neutralizing step S220, a crushing step 230 and a crushing step S240, a stirring / conveying step S250, A melting step S270, a primary molding step S280, and a secondary molding step S290.

Specifically, in the selection step S210

The selection of sanitary articles with pulp materials including plastic and superabsorbent polymer (SAP, Super Absorbent Polymer) as bad sanitary articles and sanitary articles, collecting bad sanitary and sanitary goods at collection Is a sorting step for removing impurities from a waste sanitary article containing foreign substances.

That is, since the defective hygiene products selected in the selection step (S210) are crushed without removing the foreign substances such as dirt, and the selected waste sanitary articles must be crushed after removing foreign substances such as dirt, The process of separating the foreign substances, that is, the neutralization step (S20), is required to be recycled.

Next, the neutralization step (S220)

It is most preferable to remove foreign substances from the lung sanitary article in a dry state without using water and a lung sanitary article which can not remove foreign matter in a dry state absorbs water to prevent the SAP contained in the lung sanitary article from absorbing water The inhibitor mixture is treated to inhibit the absorption, then water is added to the pulmonary hygiene articles, including the SAP with inhibited absorption, and the soil is washed.

At this time, the absorption inhibitor mixture used in the absorption inhibition treatment is generally a known absorption inhibitor mixture, and in the present invention, an absorption inhibitor mixture or a mixture of 70-90% by weight of water and 30-10 It is preferable to use an absorption inhibitor mixed with the weight%. The detailed description has been described above, so it will be omitted.

Next, the crushing step S230

A step of crushing a hygienic article such as a wet tissue or a sanitary napkin such as a diaper and a sanitary napkin of a pulp made of pulp material including plastic and SAP to a predetermined size and pulling the same into a hopper or an inlet of a crusher equipped with a crushing impeller having a constant rotational force, . In this case, the predetermined size to be crushed is a size that is easy to crush into a fiber form in the crusher, and it is obvious that the crusher can be sized according to the judgment of a person skilled in the art.

Next, the crushing step (S240)

The shredded shredded material is conveyed through the conveyor to the pulverizer, and thereafter is pulverized in the form of fibers in order to facilitate stirring and mixing with the sunlight, the additives and the thermoplastic resin. It will be self-evident.

In addition, when the pulverized material is transferred to the screw conveyor, the pulverized material is recovered without passing through the perforated network, and is returned to the pulverizer. This process is repeated to minimize the occurrence of waste and to achieve the effect of pulverizing to a size that facilitates stirring and mixing.

Next, in the stirring / conveying step S250,

In the pulverizing step (S220), the pulverized material pulverized in the form of fiber, the ILLITE, the additive, and the thermoplastic resin are fed together by a screw conveyor while being stirred and mixed, and the pulverized material passing through the perforated network is mixed with ILLITE, an additive and a thermoplastic resin Sprayed through a spraying method, and then mixed with stirring to be conveyed to a compressor.

At this time, it is preferable that the additive is sprayed to a size having a solution or a small particle, and the thermoplastic resin and ilite are preferably sprayed in a fiber form such as a short fiber form or a sanitary article pulverized product. In addition, it is preferable that the diluent, the additive, and the thermoplastic resin are added in a spraying manner and are uniformly distributed in the spiral direction at a uniformly spaced interval along the conveying direction or at a point where the circumference of the cylinder is equally divided. It is also apparent that the spraying positions of the additive and the thermoplastic resin are staggered and evenly sprayed.

Next, the compressing step (S260)

The powder of the sanitary article, the additive, and the thermoplastic resin are stirred and mixed through a screw conveyor, and then transferred to a compressor and compressed to a predetermined size. The composition of the lower layer 30 is stirred and mixed, To facilitate melting in a melting machine to be described later.

Next, the melting step (S270)

In the compressing step (S260), the compressed material compressed in a predetermined size is melted by being introduced into the melting machine, thereby realizing the effect of easily bonding the crushed material, the additive and the thermoplastic resin through melting.

Next, in the primary molding step S280,

In the melting step (S250), the melted mixture is put into an extruder and extruded by T-DIE. The melted mixture is put in an extruder, extruded and placed on a substrate such as a plastic film, a metal foil or a cellophane sheet, So that they are fixed by compression cooling. The T-DIE to be used at this time can be selected and used among the conventional T-DIE which can prevent the change of the properties of the primary molded product due to the temperature change of the melted resin and adjust the thickness of the produced primary molded product. something to do.

Next, in the secondary molding step S290,

The step of forming the lower layer (30) by passing the primary molded product through a calender or a pressurizer, wherein the primary molded extrudate is cast in parallel with a cast iron roll and passes through the assembled cylinder or presser while pressurizing The lower layer 30 having a constant thickness can be continuously formed at a high speed. That is, by molding the lower layer 30 having a constant thickness, the molded article having the minimized thickness and dimensional change ratio of the lower layer 30 can be obtained. It is obvious that the calenders used at this time can be selected by the operator among the commonly used calendars.

Next, step S300 of thermally welding the lower layer 30 to the lower surface of the upper layer 10

The upper layer 10 and the lower layer 30 are formed as described above and an adhesive is applied to the lower surface of the upper layer 10 on which the recessed groove 12 is formed to form the adhesive layer 20, 20 and the upper surface of the lower layer 30 are heated, and then the upper layer 10 and the lower layer 30 are pressed and thermally fused.

Hereinafter, tests for the thickness, specific gravity, tensile strength, impact resistance, adiabatic effect and the like of the slate prepared according to the preferred embodiments and examples of the production method of the functional slate using the sanitary ware of the present invention are shown in the table.

end. Waste synthetic resin or waste synthetic fiber is processed through crushing and perforation to produce an upper layer with a thickness of 1.5 to 2.5 mm.

I. The sanitary article is processed by sorting, grinding and the like to produce the lower layer with a thickness of 1.5 to 2.5 mm.

1. Disposable disposable diapers at the time of manufacture.

2. Crushed pieces are crushed into fiber by crushing machine. Crushed crushed material is transported to compressor by stirring and mixing with IL light, wax, DOP, PE and PP resin while being conveyed by screw conveyor. At this time, 30 to 50% by weight of the pulverized product, 5 to 15% by weight of additives, 30 to 50% by weight of PE and PP resin, and 1 to 5% by weight of ilite are mixed.

3. The composition transferred to the compressor is compressed to a certain size and is transferred to the melting machine, melted and mixed.

4. The molten mixture is put into an extruder, extruded by T-DIE to perform primary molding, and the primary molded product is passed between calenders to press the lower layer 30.

All. The adhesive is applied to the lower surface of the fabricated upper layer, the lower surface of the upper layer coated with the adhesive and the upper surface of the lower layer are heated, and then the upper and lower surfaces are pressed and attached.

end. Waste synthetic resin or waste synthetic fiber is processed through crushing and perforation to produce an upper layer with a thickness of 1.5 to 2.5 mm.

I. The sanitary article is processed by sorting, grinding and the like to produce the lower layer with a thickness of 1.5 to 2.5 mm.

1. After disposing diapers that are discarded after use, they are absorbed and washed. In this case, it is dried by using water. Thereafter, it is crushed to a predetermined size.

2. Crushed pieces are crushed into fiber by crushing machine. Crushed crushed material is transported to compressor by stirring and mixing with IL light, wax, DOP, PE and PP resin while being conveyed by screw conveyor. At this time, 30 to 50% by weight of the pulverized product, 5 to 15% by weight of additives, 30 to 50% by weight of PE and PP resin, and 1 to 5% by weight of ilite are mixed.

3. The composition transferred to the compressor is compressed to a certain size and is transferred to the melting machine, melted and mixed.

4. The molten mixture is put into an extruder, extruded with T-DIE to perform primary molding, and the primary molded product is pressed between calenders to form a base layer of the automobile interior material.

All. The adhesive is applied to the lower surface of the fabricated upper layer, the lower surface of the upper layer coated with the adhesive and the upper surface of the lower layer are heated, and then the upper and lower surfaces are pressed and attached.

[Table 1]

As shown in the above Table 1, it can be confirmed that the functional slate of the present invention prepared in Examples 1 and 2 is excellent in strength, sound absorption and absorption rate, and is excellent in terms of four major heavy metals (lead, mercury, cadmium, Chromium) does not occur.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It is possible to carry out various changes in the present invention.

1: Functional Slate 10: Upper layer
12: recessed groove 20: adhesive layer
30: Lower layer

Claims (4)

An upper layer 10 made without using asbestos;
An adhesive layer (20) applied to a lower surface of the upper layer (10); And
And a lower layer (30) attached to a lower surface of the upper layer (10)
The lower layer (30)
With respect to 100 parts by weight of the pulverized product of the sanitary ware,
20 to 35 parts by weight of pulp and 20 to 35 parts by weight of SAP (Super Absorbent Polymer)
30 to 50% by weight of a sanitary ware pulverized product comprising PP and 30 to 50 parts by weight of PE,
5 to 15% by weight of additives
30 to 50% by weight of a thermoplastic resin and
And 1 to 5% by weight of sunlight,
Wherein the additive is composed of at least one of wax, plasticizer, and edible oil.
The method according to claim 1,
The upper layer (10)
Characterized in that a recessed groove (12) in the shape of "# " is formed on the lower surface repeatedly up, down, left and right.
The method according to claim 1,
The wax
Characterized in that the functional slate is composed of at least one of PE (polyethylene) wax, polypropylene wax, amids wax, and Derurex wax.
(S100) of manufacturing an upper layer 10 which is manufactured without containing an asbestos and is formed by repeatedly vertically, horizontally and repeatedly repeating the steps of "#" shaped recessed grooves 12 on the lower surface
(S200) a slat bottom layer (30) having a top surface corresponding to a bottom surface of the top layer (10) using a sanitary article;
Forming an adhesive layer 20 by applying an adhesive to the lower surface of the upper layer 10 and thermally fusing the upper surface of the lower layer 30 to the lower surface of the adhesive layer 20 S300 ,
The step of fabricating the lower layer 30 (S200)
A selection step S210 of selecting a sanitary article having a pulp material including a plastic and a superabsorbent polymer (SAP) as a bad sanitary article and a waste sanitary article;
A neutralization step S220 of absorbing and cleaning the selected waste sanitary articles in the sorting step S210 before the following disintegration step S30
A disinfecting step (S230) of disinfecting the poor sanitary article with the absorption-suppressed and washed sanitary articles,
A crushing step S240 of crushing the crushed sanitary ware into a fiber form in the crusher,
A stirring / conveying step (S250) in which the crushed sanitary article, the daily light powder, the additive and the thermoplastic resin are fed together by a screw conveyor while stirring and mixing;
A compression step (S260) of compressing in the compressor after the stirring / transferring step (S250)
A melting step (S270) for melting the compressed product compressed in the compression step (S260) in a melting machine and mixing the compressed product
A primary molding step S280 in which the melted mixture is extruded in the extruder in the melting step S270,
Further comprising a secondary molding step (S290) of forming the lower layer (30) of the slurry by pressing the primary molded product with a presser (S290).

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