KR200473372Y1 - Flooring and wallpaper including biodegradable materials - Google Patents

Abstract

The present invention relates to an eco-friendly flooring and wallpaper, wherein the flooring or wallpaper is formed of one or more layers, wherein at least one layer constituting each layer comprises a petroleum resin and a biodegradable material, Comprising at least one of cornstarch, cornstarch, potato starch, sweet potato starch, pine needles, rice straw, bark, sawdust, wood flour, chaff, leaves, thinning by-products and branches, To 50% by weight based on the total weight of the composition, so that the composition can be easily decomposed into fine powder at the time of filling without affecting the overall tensile strength and mechanical properties.

Description

FIELD AND FLOORING AND WALLPAPER INCLUDING BIODEGRADABLE MATERIALS CONTAINING BIODEGRADABLE MATERIALS

The present invention relates to flooring and wallpaper containing biodegradable materials, and relates to a technology for forming greenish flooring and wallpaper by adding biodegradable materials to petroleum resins.

Floor materials used in buildings such as houses, mansions, apartments, offices or shops are mainly based on petroleum resin such as polyvinyl chloride (PVC).

The flooring material using polyvinyl chloride or the like is manufactured by extrusion or car rendering method using a resin such as polyvinyl chloride (PVC). However, since the raw material of the polyvinyl chloride resin is based on petroleum resources, many harmful substances are generated at the time of disposal, so that it is necessary to be used in an environmentally friendly manner.

In particular, petroleum resin does not decay and incineration is indispensable, but there is a problem that environment-harmful substances such as dioxin are emitted when incinerated.

The object of the present invention is to provide an eco-friendly flooring material and wallpaper which can be decomposed naturally during landfilling without using an incineration process by using a petroleum resin containing a biodegradable material, thereby preventing environmental pollution.

According to an embodiment of the present invention, an eco-friendly flooring material is formed of at least one layer, wherein at least one layer constituting the flooring material comprises a petroleum resin and a biodegradable material.

The petroleum resin may be selected from the group consisting of polyvinyl chloride (PVC), polyethylene glycol (PEG), ethylene vinyl acetate (EVA), thermoplastic elastomer (TPE), thermoplastic polyurethane (TPU), thermoplastic starch natural rubber, Ionomer, styrene butadiene styrene (SBS), nitrile butadiene rubber (NBR), styrene ethylene butylenes styrene (SEBS), acrylate, ABS (acrylonitrile butadiene styrene) Modified polyolefin (polyolefin modified with compatibilizer) and PU (polyurethane).

Next, the biodegradable material includes at least one of corn powder, cornstarch, cornstarch, potato starch, sweet potato starch, pine needles, rice straw, clove, sawdust, wood flour, chaff, leaves, And 0.5 to 100 parts by weight of the biodegradable material with respect to 100 parts by weight of the petroleum resin in the layer containing the biodegradable material.

In addition, according to another embodiment of the present invention, an eco-friendly wallpaper is formed of at least one layer, wherein at least one layer constituting the wallpaper comprises a petroleum resin and a biodegradable material.

According to one embodiment of the present invention, it is possible to prevent environmental pollution by using plant resource-based biodegradable materials instead of petroleum resource-based resin compositions.

According to one embodiment of the present invention, dimensional stability due to heating can be ensured through a dimensionally stable layer of a glass fiber impregnated structure while implementing an environmentally friendly flooring material and wallpaper. In addition, And the like can be added to improve the natural feeling, which was difficult to implement in the past.

1 is a cross-sectional view of a bottom material comprising a biodegradable material according to a first embodiment of the present invention.
2 is a cross-sectional view of a bottom material including a biodegradable material according to a second embodiment of the present invention.
3 is a cross-sectional view of a bottom material containing a biodegradable material according to a third embodiment of the present invention.
4 is a cross-sectional view of a bottom material containing a biodegradable material according to a fourth embodiment of the present invention.
5 is a cross-sectional view of a bottom material containing a biodegradable material according to a fifth embodiment of the present invention.
6 is a cross-sectional view of a bottom material containing a biodegradable material according to a sixth embodiment of the present invention.
7 is a cross-sectional view of a wallpaper containing a biodegradable material according to one embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, To the person having the invention, and this invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the flooring material and the wallpaper including the biodegradable material according to the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a floor material 100 including a biodegradable material according to a first embodiment of the present invention.

Referring to FIG. 1, a surface treatment layer 105, a transparent layer 110, a printable layer 120, a base layer 125, and an easy layer 130 are formed from above.

Here, as described above, at least one of the surface treatment layer 105 to the base layer 130 is formed of a layer containing a biodegradable material in a petroleum resin.

At this time, since the base layer mainly serves as an adhesive layer, the base layer is hereinafter referred to as an adhesive layer for convenience of explanation. The petroleum resin is composed of polyvinyl chloride (PVC), polyethylene glycol (PEG), ethylene vinyl acetate (EVA), thermo plastic elastomer (TPE), thermo plastic polyurethane (TPU), thermoplastic starch (TPS), epoxidized natural rubber ), An ionomer, SBS (styrene butadiene styrene), NBR (nitrile butadiene rubber), SEBS (styrene ethylene butylenes styrene), acrylate, ABS (acrylonitrile butadiene styrene) (polyolefin modified with compatibilizer) and PU (polyurethane).

Next, the biodegradable material uses at least one of corn powder, cornstarch, corn beard, potato starch, sweet potato starch, pine needles, rice straw, mulberry, sawdust, wood powder, chaff, leaves, thinning by-products and tree branches.

At this time, it is preferable that 5 to 100 parts by weight of the biodegradable material is contained relative to 100 parts by weight of the petroleum resin in the layer containing the biodegradable material.

The biodegradable material is dispersed in the petroleum resin, and it plays a role to be decomposed into fine powder naturally when the flooring material is buried.

Therefore, when the biodegradable substance is added in an amount of less than 5 parts by weight, the natural decomposition function may not be exhibited. On the other hand, if the biodegradable material is added in an amount exceeding 100 parts by weight, the mechanical properties and tensile strength of the bottom material may be lowered and the use thereof may be limited.

And more preferably 5 to 50 parts by weight based on 100 parts by weight of the petroleum resin. When the biodegradable weight part range is 5 to 50 parts by weight, good mechanical properties can be secured while exhibiting the highest degree of biodegradation.

Next, the easy layer 130 is a portion to be adhered to the bottom surface during construction, and protects the back surface opposite to the surface of the bottom layer, thereby preventing moisture from the bottom.

5 to 100 parts by weight of a biodegradable material, 5 to 60 parts by weight of DOP (DIOCTYL PHTHALATE), 500 parts by weight or less of calcium carbonate (CaCO ₃ ), titanium dioxide (TiO ₂ ) 20 parts by weight or less, 0.1 to 20 parts by weight of an acrylic copolymer, and 0.01 to 10 parts by weight of a higher fatty acid as a lubricant.

It is preferable that the easy layer 130 has a thickness of 0.10 to 2.0 mm. If the thickness of the easy layer 130 is less than 0.10 mm, the protection effect of the bottom surface and the moisture prevention effect of the bottom layer are not exhibited well, and if the easy layer 130 exceeds 2.0 mm, the manufacturing cost may increase.

The base layer 130 may be formed of a medium density fibreboard (MDF), a plywood, a cellulose fiber reinforced cement board, a magnesium board, a glued laminate, a high density fiberboard , Ceramic tiles, porcelain tiles, ceramic boards and click fasteners.

At this time, the board according to the present invention can be used with a tongue and groove (T / G) process, and is not limited to the board type or the above-mentioned materials, It can be applied to various fields such as interior / exterior materials and flooring.

Next, the petroleum resin containing the biodegradable substance used in the present invention is characterized by using the following plasticizer for processing.

First, plasticizers soften biodegradable materials to increase thermoplasticity, thereby facilitating molding at high temperatures.

In one embodiment of the present invention, DOP can be used as a plasticizer.

When the plasticizer is added below the standard value, the hardness of the biodegradable material becomes high, and there is no elasticity, and the handling may be inconvenient, such as being unable to bend. When the addition amount of the plasticizer exceeds a predetermined range in each layer, It is possible to deteriorate the physical properties such as workability due to the lowering of compatibility with other components forming the resin.

Next, as the processing aid, an acrylic copolymer may be used.

The acrylic copolymer serves to reinforce the strength of the biodegradable material, which is poor in melt strength or heat resistance, during the melt extrusion, thereby securing the processability. Also, the acrylic copolymer could be applied to the car - rendering and press - processing of biodegradable materials.

When the content of the acrylic copolymer is less than the reference value with respect to 100 parts by weight of the biodegradable material, the improvement of the melting efficiency and the melt strength of the biodegradable material is insufficient, and when the content of the acrylic copolymer exceeds the reference value, The overall physical properties of each layer may be deteriorated due to compatibility problems with other materials constituting each layer, and the like.

The weight average molecular weight (Mw) of the acrylic copolymer is not particularly limited, but from the viewpoint of improvement in melt strength during processing and compatibility with other materials, it is preferable to use one having a weight average molecular weight of 800,000 to 6,000,000.

Next, the resin composition may further include a lubricant in order to prevent accumulation of deposits or crosslinked products in melt extrusion, car-rendering, and the like.

The lubricant is used for lubricating the surface of a metal equipment such as a calender roller during molding of the resin composition of the present invention to improve fluidity, prevent sticking of the metal equipment and the resin, improve the slip property, It is possible to maximize the workability, in particular, the car rendering molding processability.

Although there are various kinds of these lubricants, in the embodiments of the present invention, higher fatty acids corresponding to eco-friendly lubricants are used. Specifically, stearic acid or higher fatty acids which are saturated higher fatty acids having carbon number of 18 are used, It can be used in combination of species or more.

If the amount of the lubricant used is less than the reference value, the effect of using the lubricant can not be obtained. If the amount of the lubricant used exceeds the standard value, there is a problem that the impact resistance, heat resistance, gloss and the like can be deteriorated.

As described above, in the present invention, there is no particular limitation on the method of manufacturing the flooring by applying the car rendering method. For example, the steps of preparing the resin composition by mixing the respective raw materials described above and the kneading step of heating and pressurizing the mixed raw materials under appropriate conditions to uniformly gellify the raw materials, .

In this case, the mixing and kneading of the raw materials can be performed, for example, by using a super mixer, an extruder, a kneader, a double or triple roll, or the like in a liquid or powdery raw material. Further, in the mixing and kneading step of the raw materials, the blended raw materials are kneaded at a temperature of about 120 to 200 DEG C using a Banbury mixer or the like, and the kneaded raw materials are heated to about 120 to 200 DEG C The mixing and kneading steps may be repeatedly carried out in multiple stages as in the case of primary and secondary mixing using a two-roll mill or the like at a temperature of 50 to 100 ° C.

Meanwhile, the method of applying the raw materials mixed as described above to the car-rendering method to produce the above layers is also not particularly limited, and for example, it can be manufactured by using an ordinary apparatus such as an inverted L type 4-roll calender have.

The car rendering processing conditions described above can be appropriately selected in consideration of the composition of the resin composition to be used, and the car rendering processing can be performed within a processing temperature range of about 120 to 200 ° C.

The flooring and wallpaper according to the present invention can show various embodiments based on the basic structure as described above, and a specific example thereof will be described as follows.

FIG. 2 shows a floor material 200 including a biodegradable material according to a second embodiment of the present invention, and FIG. 3 shows a floor material 300 including a biodegradable material according to a third embodiment of the present invention. Sectional view.

FIG. 2 illustrates that a non-foam layer 230 is provided between the printable layer 220 and the print layer 220 to which the print is applied, and FIG. 3 illustrates the printable layer 320 to which the print is applied and the non- 340 of the first embodiment of the present invention. At this time, the non-foam layer 230 and the foam layer 330 may also include a petroleum resin including a biodegradable substance, and specific examples thereof will be described below.

5 to 100 parts by weight of a biodegradable substance, 5 to 50 parts by weight of a plasticizer, 0.1 to 20 parts by weight of a processing aid, and 0.1 to 20 parts by weight of a high fatty acid as a lubricant are added to 100 parts by weight of a petroleum resin, 0.01 to 2 parts by weight.

Next, the printable layers 120, 220 and 320 are prepared by mixing 5 to 100 parts by weight of a biodegradable material, 5 to 60 parts by weight of a plasticizer, 0.1 to 20 parts by weight of a processing aid, (CaCO ₃ ) of 100 parts by weight or less, and titanium dioxide (TiO ₂ ) of 50 parts by weight.

In addition, printing can be performed in a selected manner during gravure printing, offset printing, rotary screen printing, and inkjet printing.

Here, the critical significance of each content follows the above description, and if it is out of the above range, the molding processability and the bonding force with other components may be lowered.

Next, the non-foam layer 230 is formed by blending 5 to 100 parts by weight of a biodegradable material, 5 to 60 parts by weight of a plasticizer, 0.1 to 20 parts by weight of an acrylic copolymer, 100 parts by weight of stearic acid and high- 0.01 to 2 parts by weight of at least one fatty acid, 300 parts by weight or less of calcium carbonate, 5 parts by weight or less of titanium dioxide, and 20 parts by weight or less of resin.

Next, the foam layer is applied in the same manner as the above-mentioned transparent layer, printable layer and non-foam layer production method, but can be formed by mixing a foaming agent.

However, the present invention is not always limited by the above-mentioned methods and materials, and all layer materials by a processing method including a biodegradable material can be applied.

As another embodiment according to the present invention, a chip inlay layer or a chip inlay layer to which printing is applied may be formed in place of the printable layer described above.

FIG. 4 is a cross-sectional view of a floor material 400 including a biodegradable material according to a fourth embodiment of the present invention. FIG. 5 is a sectional view of a floor material 500 including a biodegradable material according to a fifth embodiment of the present invention. And FIG. 6 is a cross-sectional view of a floor material 600 including a biodegradable material according to a sixth embodiment of the present invention.

Referring to FIG. 4, an example of the surface treatment layer 405, the chip inlay layer 410, the adhesive layer 415, and the easy layer 420 can be seen from above.

5 shows the chip inlay layer 510 and the base layer 525 in the structure of the surface treatment layer 505, the chip inlay layer 510, the non-foam layer 520, the adhesive layer 525 and the easy layer 530, An example in which a non-foam layer 520 is used is shown. At this time, a foam layer (not shown) may be further formed on the non-foam layer 520.

6, a foam layer (not shown) is formed on the adhesive layer 625 in the structure of the surface treatment layer 605, the chip inlay layer 610, the foam layer 620, the base layer 625 and the base layer 630 640) is used. At this time, a non-foam layer (not shown) may be further formed on the foam layer 620.

In addition, in all of the above cases, the chip inlay layers 410, 510, and 610 can be replaced with a chip inlay layer to which printing is applied.

Further, a dimensionally stable layer may be further added on the non-foam layer 520, and a woven fabric may be further added to the lower portion of the foam layer 620.

At this time, T / C flat dyes or knit yarns may be used as the woven fabric. The yarn used to make the woven fabric may be 100% cotton, polyester, blend of polyester and nylon, or the like.

Here, the chip inlay layers 410, 510 and 610 will be described first.

The chip inlay layers 410, 510, and 610 according to the present invention have a chip shape having a natural marble appearance and can be formed into various shapes.

First, the chip-inlaid layer is produced by processing a biodegradable material and wood powder into a sheet-shaped formed body and then crushing it to produce a chip. The chip is then introduced into a raw material containing a biodegradable material and processed into a sheet- .

In addition, the chip-inlaid layer may be manufactured by processing a raw material including a biodegradable material and wood powder into a sheet-shaped formed body by a car rendering method or the like, assuming that wood chips or the like are chips, It can be a form that looks like a chip embedded when viewed from the surface.

In addition, the chip-inlaid layer may be formed by processing a biodegradable material and wood powder into a sheet-shaped formed body and then crushing it to produce a chip, and then arranging and rolling it on the glass fiber impregnated layer below, And rolling.

5 to 100 parts by weight of a biodegradable material, 5 to 100 parts by weight of a plasticizer, 0.1 to 20 parts by weight of the acrylic copolymer, stearic acid and release fatty acids least one of 0.01 to 2 parts by weight of I water in 10 parts by weight or less, one or more of the wood powder and the rice hull 200 parts by weight of calcium carbonate (CaCO ₃₎ 500 parts by weight, titanium dioxide (TiO ₂ ) Of not more than 50 parts by weight and not more than 20 parts by weight of rosin.

Here, the calcium carbonate (CaCO ₃ ) acts as an inorganic filler for reinforcement in the chip inlay layer. In addition, titanium dioxide (TiO ₂ ) can be added as a white pigment for the purpose of giving aesthetics and the like, and further includes at least one of wood and rice husk to impart the natural wood texture and inherent wood aroma, .

In addition, a transparent layer or a printable layer including a petroleum resin mixed with a biodegradable material may be further formed on the chip inlay layer, and a non-foamed layer and a foamed layer may include a petroleum resin mixed with a biodegradable material have.

In addition, in order to improve the surface quality such as scratch resistance and abrasion resistance on the flooring material and the wallpaper upper surface including the biodegradable materials shown in the embodiments of FIGS. 1 to 6, A surface treatment layer may be applied. At this time, the surface treatment layer may be formed of a material including polyurethane, polyurethane acrylate or wax.

Further, the printable layer or the bottom of the chip inlay layer may further include a dimension-stabilizing layer for assisting dimensional stability of the flooring and wallpaper.

The dimensionally stable layer according to the present invention serves to complement the dimensional stability of biodegradable materials. In the case of a flooring material using a biodegradable material, a phenomenon may occur in which the dimension changes due to a change in temperature due to heating or the like, and consequently, a connection portion between the flooring materials is opened due to shrinkage. Such a dimensional stability layer secures such dimensional stability And to prevent a widening phenomenon between flooring materials.

Taking all the above results into consideration, it is preferable to set the thickness of each layer as follows. In particular, the thickness of the adhesive layer is 0.01 to 0.5 mm, the thickness of the transparent layer is 0.1 to 1 mm, the thickness of the printable layer is 0.05 to 0.5 mm, the thickness of the inlay layer is 0.3 to 3.0 mm The thickness of the non-foam layer is 0.2 to 2.0 mm, the thickness of the foam layer is 0.5 to 20.0 mm, the thickness of the dimensionally stable layer is 0.1 to 1.0 mm, the thickness of the surface- 0.1 mm.

If the thickness of the composite material is less than the specified range, the thickness of the composite material may be too thin to achieve desired characteristics. If the thickness of the composite material exceeds the upper limit of the above range, the composite material may not be able to function normally.

7 is a cross-sectional view of a wallpaper 700 including a biodegradable material according to an embodiment of the present invention, and may be formed in the same manner as the basic structure of the flooring described above.

The eco-friendly wallpaper 700 according to the present invention provides a wallpaper in which a resin layer 720 containing a biodegradable material is coated on the base layer 710, or a resin layer film is laminated.

Therefore, it is possible to minimize the emission of harmful substances when adhering to the wall surface, and to easily decompose the petroleum resin even in case of discarding at a later time, thereby remarkably preventing environmental pollution.

Hereinafter, specific production examples of a transparent layer, a printable layer, a chip inlay layer, a non-foam layer, and a foam layer which can be commonly applied to each of the above-described embodiments will be described. It should be understood, however, that these examples are provided as an example of the present invention and should not be construed as limiting the present invention in any way. Therefore, the contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.

Manufacturing example

Transparent layer manufacturing

50 parts by weight of DOP as a plasticizer, 5 parts by weight of corn powder as a biodegradable material, 5 parts by weight of an acrylic copolymer, 2 parts by weight of stearic acid and 2 parts by weight of a heat stabilizer were kneaded with 100 parts by weight of PVC at 170 DEG C by a Banbury mixer , And the mixture was subjected to primary and secondary mixing using two rolls at 140 占 폚. Thereafter, the produced raw material was subjected to car rendering processing at a temperature of 130 DEG C to produce a sheet having a thickness of about 0.6 mm.

Printable layer manufacturing

35 parts by weight of DOP as a plasticizer, 10 parts by weight of potato starch, 5 parts by weight of an acrylic copolymer, 2 parts by weight of stearic acid, 50 parts by weight of calcium carbonate and 10 parts by weight of titanium dioxide were mixed with 100 parts by weight of PVC, To prepare a sheet having a thickness of 0.2 mm.

In printing, the printable layer was heat-laminated on the dimensionally stable layer at a temperature of 150 ° C to form a printable layer-dimensionally stable layer, and then a pattern was formed on the printable layer surface through gravure printing.

Chip inlay layer manufacturing

30 parts by weight of DOP as a plasticizer, 10 parts by weight of sweet potato starch as a biodegradable material, 10 parts by weight of an acrylic copolymer, 2 parts by weight of stearic acid, 20 parts by weight of wood powder, 100 parts by weight of calcium carbonate, 10 parts by weight of titanium dioxide 10 , 2 parts by weight of heat stabilizer, and 10 parts by weight of pine resin.

Non-foaming layer manufacturing

30 parts by weight of DOP as a plasticizer, 10 parts by weight of sweet potato starch as a biodegradable material, 10 parts by weight of an acrylic copolymer, 2 parts by weight of stearic acid, 75 parts by weight of calcium carbonate, 30 parts by weight of rice hull, 2 parts by weight of titanium dioxide And 10 parts by weight of rosin were kneaded at 140 占 폚 with a Banbury mixer, followed by primary and secondary mixing using two rolls at 140 占 폚. Thereafter, the produced raw material was subjected to car rendering processing at a temperature of 130 캜 to produce a sheet having a thickness of about 1.4 mm.

Manufacture of dimensionally stable layer

35 parts by weight of DOP as a plasticizer, 5 parts by weight of sweet potato starch as a biodegradable material, 10 parts by weight of a viscosity reducing agent, 50 parts by weight of calcium carbonate, 5 parts by weight of titanium dioxide and 2 parts by weight of a heat stabilizer were mixed with 100 parts by weight of PVC, . Then, the acryl-based sol prepared by using the roll coater was impregnated with glass fiber (60 g / m ² ) and dried at 140 ° C for 3 minutes to prepare a dimensionally stable layer having a thickness of about 0.6 mm.

Surface Treatment Layer Manufacturing

The chip inlay layer, the glass fiber impregnated layer and the non-foamed layer-back fiber layer were heat-laminated using an embossing roll, and then a surface treatment layer having a thickness of about 0.05 mm was formed on the surface of the chip- In this embodiment, a transparent layer, a printable layer, a chip-inlaid layer and a non-foam layer were produced based on biodegradable materials.

Based on the above examples, a floor material having a size of 10 Cm * 10 Cm and having a transparent layer, a printable layer, a chip-like lay layer, a nonfoamed layer, a dimensionally stable layer and an easy- The biodegradability of each biodegradable substance was measured in such a manner that the biodegradable substance content was 0.5 to 110 parts by weight.

The biodegradability test was carried out using ISO14855 (method for measuring carbon dioxide content) after each sample was prepared, and the aerobic ultimate biodegradation (%) was determined in a com- bust condition condition controlled for 45 days.

In addition, to compare the mechanical properties of each sample, the initial tensile strength was measured and recorded as follows.

[Table 1]

※ Biodegradable material content: petroleum resin 100 parts by weight Relative content

As described above, the flooring or wallpaper containing the biodegradable material according to the present invention has a high biodegradability of 40 to 80% by using a biodegradable material (or a mixed resin of a biodegradable material and another resin) .

In this case, in the case of Comparative Example 1 in which the content of the biodegradable material was less than the standard of the present invention of 0.5 part by weight, the degree of biodegradation was as low as 0%, and in comparison with the standard range of 100% In the case of Example 2, the biodegradability is high, but the tensile strength is low, indicating that it is unsuitable as a bottom material.

Therefore, the flooring or wallpaper according to the present invention is more environment-friendly than conventional petroleum-based water, and it is possible to uniformly disperse biodegradable materials such as a printable layer, a chip inlay layer, a dimensionally stable layer, a nonfoamed layer, a foamed layer, , It is possible to utilize various kinds of building material loaders that secure sound insulation performance, cushioning performance, insulation characteristics and the like while having good mechanical characteristics.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention . Accordingly, the true scope of protection of the present invention should be determined by the claims set forth below.

100, 200, 300, 400, 500, 600: Eco-friendly flooring
105, 205, 305, 405, 505, 605:
110, 210, 310: transparent layer
125, 235, 335, 415, 525, 625:
120, 220, 320: printable layer
230, 520: Non-foam layer
330, 620: foam layer
410, 510, 610: chip inlay layer
130, 240, 340, 420, 530, 630:
700: Eco-friendly wallpaper
710: wallpaper base layer
720: Resin layer containing biodegradable substance

Claims (19)

In a flooring comprising a surface treatment layer, a transparent layer, a printable layer, a base layer and an easy layer from above,
Wherein at least one layer constituting the bottom material comprises a petroleum resin and a biodegradable material,
Wherein the biodegradable material is dispersed in the petroleum resin and comprises 5 to 50 parts by weight based on 100 parts by weight of the petroleum resin,
Wherein the printable layer is a chip inlay layer,
Wherein the chip-inlaid layer is formed into a sheet shape by molding a sheet containing the biodegradable material and wood powder, pulverizing the chips, and introducing the formed chip into a raw material containing the biodegradable material.
The method according to claim 1,
The petroleum resin
PVC, polyvinyl chloride, PEG, EVA, thermo plastic elastomer (TPE), thermo plastic polyurethane (TPU), thermoplastic starch (TPS), epoxidized natural rubber (ENR) (Polyolefin modified with compatibilizer), which includes a polyisocyanate, a polyisocyanate, a polyisocyanate, a polyisocyanate, a polyisocyanate, a polyisocyanate, a polyisobutylene, a polyisobutylene, ) And polyurethane (PU). ≪ RTI ID = 0.0 > 8. < / RTI >
The method according to claim 1,
The biodegradable material
An eco-friendly flooring comprising at least one of corn powder, cornstarch, corn beard, potato starch, sweet potato starch, pine needles, rice straw, mulberry, sawdust, wood flour, chaff, leaves, thinning by-products and branches.
delete delete delete The method according to claim 1,
The surface treatment layer
And a UV-curable composition based on urethane acrylate.
The method according to claim 1,
The transparent layer
Wherein the petroleum resin comprises 5 to 50 parts by weight of the biodegradable material, 5 to 50 parts by weight of the plasticizer, 0.1 to 20 parts by weight of the processing aid and 0.01 to 2 parts by weight of the lubricant, based on 100 parts by weight of the petroleum resin.
The method according to claim 1,
The printable layer
5 to 60 parts by weight of the biodegradable material, 5 to 60 parts by weight of the plasticizer, 0.1 to 20 parts by weight of the processing aid, 100 parts by weight or less of calcium carbonate (CaCO ₃ ) ₂ ) 50 parts by weight or less.
delete delete The method according to claim 1,
The easy layer
5 to 50 parts by weight of the biodegradable material, 5 to 60 parts by weight of DOP (DIOCTYL PHTHALATE), 500 parts by weight or less of calcium carbonate (CaCO ₃ ), 20 parts by weight of titanium dioxide (TiO ₂ ) 0.1 to 20 parts by weight of an acrylic copolymer and 0.01 to 10 parts by weight of a higher fatty acid as a lubricant.
The method according to claim 1,
The flooring
Further comprising a dimensional stability layer.
14. The method of claim 13,
The dimensionally stable layer
Wherein the green flooring has a thickness of 0.10 to 1.0 mm.
In a wallpaper formed of one or more layers, including a chip-inlaid layer,
Wherein the at least one layer constituting the wallpaper comprises a petroleum resin and a biodegradable material,
Wherein the biodegradable material is dispersed in the petroleum resin and contains 5 to 50 parts by weight based on 100 parts by weight of the petroleum resin,
Wherein the chip-inlaid layer is formed into a sheet shape by feeding a chip formed by molding a sheet containing the biodegradable material and wood powder into a raw material containing the biodegradable material.
16. The method of claim 15,
The petroleum resin
PVC, polyvinyl chloride, PEG, EVA, thermo plastic elastomer (TPE), thermo plastic polyurethane (TPU), thermoplastic starch (TPS), epoxidized natural rubber (ENR) (Polyolefin modified with compatibilizer), which includes a polyisocyanate, a polyisocyanate, a polyisocyanate, a polyisocyanate, a polyisocyanate, a polyisocyanate, a polyisobutylene, a polyisobutylene, ) And polyurethane (PU). ≪ RTI ID = 0.0 > 8. < / RTI >
16. The method of claim 15,
The biodegradable material
An eco-friendly wallpaper comprising at least one of corn powder, cornstarch, corn beard, potato starch, sweet potato starch, pine needles, rice straw, bark, sawdust, wood flour, chaff, leaves, thinning by-products and branches.
delete delete

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