KR101287255B1 - Decorative Flooring Using Ramie Stem - Google Patents

Abstract

The present invention provides an eco-friendly floor decoration using ramie stem. One embodiment of an eco-friendly flooring material using a ramie stem according to the present invention is a flooring material composed of several layers such as a base layer, a surface layer, a surface treatment layer, the reinforcement layer consisting of a ramie stem between any one layer and the other layer Characterized in that it is included. In addition, another embodiment of the eco-friendly floor decoration material using a ramie stem according to the invention is characterized in that the ramie stem board as a base.
According to the eco-friendly flooring material using the ramie stem of the present invention, stable basic properties compared to the plywood is secured, the price competitiveness is superior to the plywood by using a wide range of production of ramie raw materials and waste ramie stem, and the safety of supply and demand of raw materials is secured have.

Description

Eco-friendly Flooring Material {Decorative Flooring Using Ramie Stem}

The present invention relates to an eco-friendly flooring material, and more particularly, to an eco-friendly flooring material using linen stems that can secure a price competitiveness with excellent quality, environment-friendly, supply and demand stability.

Commonly used floor coverings are largely divided into PVC sheets, commonly referred to as cerium, and wood-based floor coverings.

The wood-based flooring materials are wood flooring, plywood flooring, reinforced flooring, etc., wood flooring is a flooring material that is usually bonded to the surface layer of veneer of 3mm or more on the plywood layer of the veneer board of 5-7 layers, plywood flooring The veneer used for the same structure or surface layer as floor is usually 0.6mm, and the reinforced floor is on the surface of Medium Density Fiberboard (MDF) or High Density Fiberboard (HDF). It is a floor decoration material with a decorative sheet attached.

However, the plywood has a problem that the supply and demand is unstable due to the tightening regulations on the bumblebee wood as the concern of environmental destruction on the increase of carbon dioxide due to the logging of wood is amplified, and the cost increase and resource depletion are a concern. In addition, MDF, HDF, which is a base material of reinforced floor, has high absorption thickness expansion rate against water and dimensional stability, and the natural texture effect is reduced as the surface layer of processed flooring material is composed of artificial wood pattern layer, and it is included in adhesive There is a problem that adversely affects the human body due to harmful substances.

Accordingly, there is a need for a substrate to cope with the plywood, and as a requirement for the alternative substrate, the price must be lower than that of the plywood and the physical properties should be at the plywood level. In addition, the development of environmentally friendly flooring materials to complement the absorption thickness expansion rate and dimensional stability proposed as a problem of reinforced floor, and to prevent harmful substances are urgently required.

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems,

The object of the present invention is to adopt an eco-friendly flooring material using ramie stems that can improve the living environment by overcoming the shortcomings of reinforced floors by ensuring the absorption thickness expansion rate and dimensional safety by adopting a reinforcement layer using ramie stems. To provide.

Another object of the present invention is to provide an environmentally friendly flooring material using a ramie stem board having excellent price competitiveness compared to plywood, securing supply and demand of raw materials, and having plywood-level physical properties.

One embodiment of an environmentally friendly flooring material according to the present invention provided to achieve the above object is a base material layer, a surface layer, a surface treatment layer comprising a flooring material, which consists of a liner between one layer and another layer Reinforcing layer is included, the reinforcing layer is a surface modifier diluted in the weight ratio of silane KH550 or titanate NDZ-101: anhydrous alcohol = 1: 2 to 4 in the ramie stem at a temperature of 90 to 110 ℃ 1 To 2 parts by weight of modified modified stem wool, and synthetic resin made of one or more materials selected from low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP).
In addition, the reinforcing layer is characterized in that the modified hairline stem powder 6 to 30 parts by weight, synthetic resin 50 to 84 parts by weight, additives 10 to 20 parts by weight are mixed.
In addition, the reinforcing layer is characterized by consisting of 6 to 30 parts by weight of modified ramie stem powder, 40 to 74 parts by weight of synthetic resin, 10 to 20 parts by weight of lime, and 4 to 16 parts by weight of additives.
Here, the additive is characterized in that it comprises at least one functional material selected from charcoal, loess, silver, elvan, germanium, magnetite, jade, antibacterial, insect repellent.

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Another embodiment of the eco-friendly floor decoration according to the present invention is a surface modifier diluted with a weight ratio of silane KH550 or titanate NDZ-101: anhydrous alcohol = 1: 2 to 4 in the ramie stem at a temperature of 90 to 110 ℃ Modified ramie stems produced by spraying 1 to 2 parts by weight of powder, and synthetic resins comprising at least one material selected from low density polyethylene (LDPE), high density polyethylene (HDPE) and polypropylene (PP). Characterized in that the stem board.

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And, the substrate is characterized in that the fiber board is included, the fiber board is characterized in that the medium density fiberboard (MDF: Medium Density Fiberboard) or high density fiberboard (HDF: High Density Fiberboard).

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In addition, the substrate is characterized in that the end plate is included.
In addition, the ramie stem board is characterized in that the modified ramie stem powder 6 to 30 parts by weight, synthetic resin 50 to 84 parts by weight, additives 10 to 20 parts by weight are mixed.

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In addition, the ramie stem board is characterized in that the modified ramie stem powder 6 to 30 parts by weight, synthetic resin 40 to 74 parts by weight, lime 10 to 20 parts by weight, additives 4 to 16 parts by weight.

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According to the eco-friendly flooring material using ramie stems and ramie stem boards of the present invention, stable basic physical properties are secured compared to plywood, excellent price competitiveness compared to plywood through the wide production of ramie raw materials and the use of waste ramie stems, and supply and demand safety of raw materials The effect is secured.

In addition, the use of environmentally friendly materials, such as ramie stems, does not generate VOC (volatile organic compounds) and HCHO (formaldehyde), which are toxic substances that cause sick house syndrome, and is environmentally friendly due to its excellent far-infrared radiation effect and surface texture. It works.

In addition, there is an effect of realizing the comprehensive use of ramie raw materials, solving the problem of disposal of agricultural waste to improve the added value of agricultural products.

1 is a cross-sectional view showing embodiments of an eco-friendly flooring material using a ramie stem according to an embodiment of the present invention.
Figure 2 is a cross-sectional view showing an eco-friendly flooring using a ramie stem board according to another embodiment of the present invention.
3 to 5 are cross-sectional views illustrating embodiments of the substrate of FIG. 2.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. Hereinafter, with reference to the accompanying drawings will be described in detail an eco-friendly flooring material using a ramie stem according to an embodiment of the present invention. For the purposes of this specification, like reference numerals in the drawings denote like parts unless otherwise indicated.

1 is a cross-sectional view showing preferred embodiments of the eco-friendly flooring material using a ramie stem according to an embodiment of the present invention.

Flooring material according to an embodiment of the present invention is easy layer 10, foam layer 20, base layer 30, surface layer 40, printed layer 50, glass fabric layer 60, surface treatment layer 70, and includes a reinforcing layer 100 made of a ramie stem between any one layer and the other layer.

Here, the easy layer 10 serves to balance the warp of the flooring material and to prevent deformation of the layers caused by the floor moisture after construction, and to transfer heat to the front in order to reduce energy and evenly transfer heat to the front. . The easy layer 10 may be selected from one or more of a thermal conductive and thermal radiation single easy layer, a thermal conductive easy layer or a thermal radiation easy layer to form a floor decoration material of various layers.

The foam layer 20 uses elastic resins for cushioning and shock absorption. In addition, the unit cell is large, forming a closed cell structure of the upright form different from the open structure to ensure excellent thermal insulation effect.

Here, the foam layer 20 is polyvinyl chloride (PVC), modified thermoplastic olefin resin (TPO), ethylene vinyl acetate resin (EVA), styrene butadiene rubber (SBR) or thermoplastic urethane resin (TPU), nano carbon tube ( NCT), plasticizer, calcium carbonate, pigment, foaming agent or foam stabilizer.

The base layer 30 is made of wood-based boards such as Medium Density Fiberboard (MDF), High Density Fiberboard (HDF), Resin Wood Mixing Board, and Waterproofing Plywood.

The surface layer 40 is made of at least one material selected from veneer, PVC, PE, PP, olefin, glass fiber, inorganic, sponge, styrofoam, gypsum.

The print layer 50 is formed by printing a design or pattern on the calendered synthetic resin sheet. The print layer 50 is a layer for decoration of the flooring material, and forms a variety of designs and patterns by gravure coating, nip coating, bar coating or transfer printing method.

The glass fabric layer 60 is a heat-melt spinning glass material to produce a filament of 0.5 to 10 denier thickness and twisted it into several strands to produce a glass yarn, weaving it into a continuous fabric, PVC sol It is used as a binder and thermo-plywooded with a PVC substrate. The glass fabric layer 60 serves to impart heat resistance.

The surface treatment layer 70 is a layer for improving the durability, abrasion resistance, and scratch resistance of the surface of the product, is formed by applying a urethane acrylate-based UV-curable resin with a strong stain resistance on the surface of the product, UV-curing. Or it is formed by applying melamine resin, urea resin, acrylic resin and heat curing.

The reinforcement layer 100 is manufactured in the form of a board using a ramie stem.

The ramie stems are a waste of ramie fibers obtained from ramie grass, which are ground into fine powder or a slight coarse mesh. The ramie stem powder is preferably pulverized to a particle size of 20 to 100 mesh (mesh). Then, it is preferable to remove the moisture of the ground ramie stem powder to have a water content of 0 to 3% by weight (%).

The ramie fiber is 6-20 cm in length, and the chewy is 4 times flax and 8 times more than cotton. Most of the ramie fibers are used as bast fiber part of the ramie as the upper fiber raw material of the textile, and the ramie stem and the epidermal part after peeling the ramie grass are treated as waste. As the wastes treated in this way occupy about two-thirds of the length of the wastes, they cause not only environmental pollution but also wasted resources. The barley line to be disposed of is mostly made of fibres, among which is a ditch hollow steel, the five-walled pipe has many holes, and is thin, long and tough, light in weight, and quick to absorb and disperse moisture. Therefore, it is of sufficient value as a raw material to replace wood. It also plays an important role in improving the added value of agricultural products by utilizing agricultural resources and solving agricultural waste disposal problems, and lowering the cost of products due to the wide range of production and low price of raw materials.

The reinforcing layer 100 is preferably made of a synthetic resin mixed with the ramie stem. However, the ramie stems are plant fibers, and the plant fibers have a strong polarity and are incompatible with plastics.

Accordingly, in order to solve the compatibility problem between the ramie stem and synthetic resin, the modified ramie stem is sprayed by spraying a surface modifier having a weight ratio of 1 to 2% by weight of ramie stem powder at a temperature of 90 to 110 ° C. Manufacture. Here, the surface modifier is diluted in a weight ratio of silane surface modifier KH550, WD20 or titanate surface modifier NDZ-101: anhydrous alcohol = 1: 2 to 4.

The modified ramie stems thus prepared are mixed with synthetic resin.

Here, the synthetic resin is selected from polypropylene (PP, Polypropylene), polyethylene (PE, Poly Ethylene), polystyrene (PS, Polystyrene), polyethylene derephthalate (PET, Poly Ethylene Terephthalate), ABS (Acrylonitrile Butadiene Styrene resin) or Use two or more materials.

The synthetic resin enhances physical properties such as water resistance, heat resistance, impact strength, flexural strength when mixed with the modified ramie stem.

The reinforcement layer 100 may further include an additive. In more detail, it is preferred that 6 to 30 parts by weight of modified ramie stem powder, 50 to 84 parts by weight of synthetic resin, and 10 to 20 parts by weight of additive are mixed.

Here, the additives include a compatibilizer, a lubricant, an antioxidant, a flame retardant, and the like, and include at least one functional material selected from charcoal, red earth, silver, elvan, germanium, magnetite, jade, fungicide, and insect repellent.

In addition, the reinforcement layer 100 may further include lime. More specifically, it is preferable that 6 to 30 parts by weight of modified ramie stem powder, 40 to 74 parts by weight of synthetic resin, 10 to 20 parts by weight of lime, and 4 to 16 parts by weight of additives are mixed.

The lime improves the water problem contained in the ramie stem. When a certain amount of the lime is used, a separate work or process for removing moisture is unnecessary, and the problem of reabsorbing moisture in the air after drying can be solved. In addition, the non-combustible effect and durability are increased and are less affected by temperature.

The method of manufacturing a ramie stem board constituting the reinforcing layer is a step of grinding the ramie stems with a ramie stem of 20 to 100 mesh, dried so that the water content of the milled ramie stem powder is 0 to 3% by weight (%) and separately synthetic resin Drying step, putting the dried ramie stem powder into a kneader, spraying a surface modifier and kneading for 40 to 60 minutes at a temperature of 90 ℃ to 110 ℃, put the dough ramie stem powder into a high speed mixer 15 to 20 Preparing a modified ramie stem by mixing for about 6 minutes, mixing 50 to 84 wt% of the dried synthetic resin, 4 to 16 wt% of additives, and 10 to 20 wt% of lime to 6 to 30 wt% of the prepared modified ramie stem. , Extruding the mixed composite material.

Therefore, the reinforcing layer 100 serves to lower the absorption thickness expansion rate of the flooring material, increase the dimensional stability, and become an environmentally friendly product.

As shown in Fig. 1 (a), the floor decorative material having the above configuration is an easy layer 10, a reinforcing layer 100, a foam layer 20, a base layer 30, a surface layer 40, and a printing layer from below. 50, the glass fabric layer 60, the surface treatment layer 70, or as shown in Figure 1 (b) from below the easy layer 10, foam layer 20, reinforcing layer 100, It consists of the base material layer 30, the surface layer 40, the printing layer 50, the glass fabric layer 60, and the surface treatment layer 70, or as shown in FIG. ), Foam layer 20, base material layer 30, reinforcement layer 100, surface layer 40, printed layer 50, glass fabric layer 60, surface treatment layer 70, or Figure 1 ( d) easy layer 10, foam layer 20, base layer 30, surface layer 40, reinforcement layer 100, printing layer 50, glass fabric layer 60, surface treatment as shown in d). It may consist of layer 70. In addition, although not shown in the drawings, a reinforcement layer 100 may be inserted between the print layer 50 and the glass fabric layer 60, if necessary, between the glass fabric layer 56 and the surface treatment layer 70. The reinforcement layer 100 may be inserted.

In addition, the floor decorative material of the present invention, the easy layer 10, the foam layer 20, the base layer 30, the surface layer 40, the printing layer 50, glass fabric layer 60, surface treatment layer 70 It may be made of a reinforcing layer 100 including a layer selected from, and made of a liner between any one of the selected layer and the other layer.

As described above, the exemplary embodiment of the present invention includes an easy layer 10, a foam layer 20, a base layer 30, a surface layer 40, a print layer 50, a glass fabric layer 60, and a surface treatment layer 70. ), And the reinforcement layer 100 is inserted between the one layer and the other layer to secure the absorption thickness expansion rate and dimensional safety, thereby overcoming the disadvantages of the reinforced floor based on MDF and HDF. In addition, since the reinforcing layer 100 is made of a liner of environmentally friendly materials, VOC (volatile organic compounds) and HCHO (formaldehyde), which are toxic substances that cause the sick house syndrome, are not generated, and far-infrared rays are radiated to create a living environment. Improve.

Figure 2 is a cross-sectional view showing an eco-friendly flooring using a ramie stem board according to another embodiment of the present invention, Figure 3 (a) ~ (d) to Figure 5 (a) ~ (d) is shown in the description of Figure 2 Cross-sectional views showing embodiments of the present invention are shown.

As shown in FIG. 2, the flooring material according to another embodiment of the present invention uses a ramie stem board 310 as a substrate. Here, the flooring material is the easy layer 10, the foam layer 20, the surface layer 40, the print layer 50, the glass fabric layer 60 on the base layer 300 using the ramie stem board 310 The surface treatment layer 70 is formed by laminating or the easy layer 10, the foam layer 20, the surface layer 40, and the printing layer 50 on the base layer 300 using the ramie stem board 310. ), The glass fabric layer 60, the surface treatment layer 70 of the selected layer may be laminated.

The ramie stem board 310 is made in the form of a board using a ramie stem, made of the same description as the reinforcement layer 100 of one embodiment. Accordingly, the easy layer 10, the foam layer 20, the surface layer 40, the print layer 50, the glass fabric layer 60, the surface treatment layer 70, and the ramie stem board 110 described in one embodiment. ) Will be omitted.

The substrate layer 300 based on the ramie stem board 310 may include a fiber board 320.

The fiber board 320 complements the rigidity and physical properties of the ramie stem board 310, has no orientation, and is very inexpensive compared to plywood. As the fiber board 320, a medium density fiber board (MDF) or a high density fiber board (HDF) is used, and particularly, a high density fiber board (HDF) is preferably used.

Therefore, the base layer 300 may be made of a ramie stem board 310, a fiber plate 320, as shown in Figure 3a, a ramie stem board 310, a fiber board 320 as shown in Figure 3b ), May be made of a ramie stem board 310, it may be made of a fiber plate 320, a ramie stem board 310, a fiber plate 320 as shown in Figure 3c.

In addition, a base plate 330 may be included in the base layer 300 based on the ramie stem board 310.

The end plate 330 complements the rigidity and physical properties of the ramie stem board 310, and the price is lower than that of the plywood, while the dimensional stability and absorption thickness expansion ratio is close to the plywood level.

As the end plate 330, a veneer end plate used for plywood is used, and the end plate is usually cut to a thickness of 1.2 to 4.8 mm, but may be adjusted to an appropriate thickness according to the structure of a particular flooring material.

Accordingly, the base layer 300 may be formed of a ramie stem board 310 and a end plate 330 as shown in FIG. 4A, or a ramie stem board 310 and a end plate 330 as shown in FIG. 4B. It may be made of a ramie stem board 310, it may be made of a single plate 330, a ramie stem board 310, a end plate 330 as shown in Figure 4c.

In addition, the substrate layer 300 based on the ramie stem board 310 may include both the fiber plate 320 and the end plate 330.

That is, the base layer 300 may be composed of a ramie stem board 310, a fiber board 320, a end plate 330 from above, as shown in Figure 5a, or a fiber board (from above as shown in Figure 5b) 320, may be made of a ramie stem board 310, a end plate 330, it may be made of a end plate 330, a ramie stem board 310, a fiber plate 320 from above.

[Example]

From above, the ramie stem board 310, the fiber board 320, the ramie stem board 310 was integrated by pressing to prepare a base material 300 for floor decoration. At this time, the ramie stem board 310 is applied to the upper layer and the lower layer has a specific gravity of 0.9, a thickness of 3.5mm, a water content of 2.5%, the fiber board 320 has a specific gravity of 0.7, a water content of 5%, a thickness of 3mm. Was used, and the adhesive used melamine resin. The substrate 300 was laminated with each layer, and then integrated using a press having a pressure of 7 kgf / cm 2, a press time of 7 minutes, and a hot plate temperature of 120 ° C.

Comparative Example 1

Plywood floor based on plywood.

Comparative Example 2

Reinforced floor based on HDF.

[Test Example]

Dimensional stability and absorption thickness expansion ratio were measured for the floor decorative material of Example and the laminated floor of Comparative Example 1 and the reinforced floor of Comparative Example 2, and the results are shown in Table 1.

The expansion coefficient of absorption of the flooring manufactured in Example was superior to that of the laminate floor of Comparative Example 1 and the reinforced floor of Comparative Example 2. In addition, the dimensional stability measured the dimensional change before and after 48 hours in the immersion conditions in the room temperature water bath and oven drying conditions of high temperature (80 ℃).

Here, the absorption thickness expansion rate was measured by comparing the thickness before and after immersion in 20 ℃ water for 24 hours, 70 ℃ water for 2 hours in a constant temperature bath according to KSF 3200 standard.

        Test Items  Example  Comparative Example 1  Comparative Example 2 size
stability

Cold water immersion
48 hours  width   0.18   0.19   0.23  Length   0.08   0.07   0.18 High temperature (80 ℃)
48 hours of drying  width  -0.12  -0.22  -0.36  Length  -0.10  -0.16  -0.32 Absorption Thickness Expansion Rate 20 ℃ 24 hours   5.35   7.33   32.02 70 ℃ 2 hours   9.12   22.64  136.04

The dimensional stability shows better results as the temperature nears zero for both immersion and high temperature drying conditions. That is, in the case of the embodiment, physical properties similar to plywood floors were shown in the immersion width direction and the longitudinal direction of normal temperature water, and the result was better than the reinforced floors. And the Example showed the best result in high temperature drying conditions.

In the case of the absorption thickness expansion ratio, the examples showed the best values at 20 ° C 24 hours and 70 ° C 2 hours.

As described above, another embodiment of the present invention uses the ramie stem board 310 as the base material 300, thereby securing stable basic properties compared to the plywood, and having a competitive price compared to plywood through the wide production of ramie raw materials and utilization of waste ramie stems. Excellent and safe supply and demand for raw materials.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. That is, those skilled in the art to which the present invention pertains can make many changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications Equivalents should be considered to be within the scope of the present invention.

10: easy layer 20: foamed layer
30: substrate layer 40: surface layer
50: printed layer 60: glass fabric layer
70: surface treatment layer 100: reinforcement layer
300: base material layer 310: ramie stem board
320: fiber board 330: single plate

Claims (17)

In the floor decorative material comprising a base material layer, a surface layer, a surface treatment layer,
Reinforcing layer comprising a ramie stem between any one layer and the other layer, wherein the reinforcing layer is a weight ratio of silane KH550 or titanate NDZ-101: anhydrous alcohol = 1: 2 to 4 in the ramie stem at a temperature of 90 to 110 ℃ At least one material selected from among modified dendritic stems produced by spraying a surface modifier diluted with 1 to 2 parts by weight of ramie stem, low density polyethylene (LDPE), high density polyethylene (HDPE), and polypropylene (PP). Eco-friendly flooring material using a ramie stem, characterized in that the synthetic resin made of a mixture. delete The method of claim 1,
The reinforcing layer is an environmentally friendly flooring material using a ramie stem, characterized in that the modified ramie stems 6 to 30 parts by weight, synthetic resin 50 to 84 parts by weight, additives 10 to 20 parts by weight. The method of claim 1,
The reinforcing layer is an environmentally friendly flooring material using a ramie stem, characterized in that the modified ramie stems 6 to 30 parts by weight, synthetic resin 40 to 74 parts by weight, lime 10 to 20 parts by weight, additives 4 to 16 parts by weight. delete delete The method of claim 3, wherein
The additives include environmentally friendly flooring using ramie stems, characterized in that it comprises at least one functional material selected from charcoal, loess, silver, elvan, germanium, magnetite, jade, antibacterial and insect repellent. A surface modifier diluted in a weight ratio of silane KH550 or titanate NDZ-101: anhydrous alcohol = 1: 2 to 4 at a temperature of 90 to 110 ° C. was sprayed by 1 to 2 parts by weight of the ramie stem powder. A ramie stem comprising a ramie stem board comprising a modified ramie stem and a synthetic resin composed of at least one material selected from low density polyethylene (LDPE), high density polyethylene (HDPE), and polypropylene (PP). Eco-friendly flooring using boards. The method of claim 8,
Eco-friendly flooring material using a ramie stem board, characterized in that the substrate comprises a fiber board. The method of claim 8,
Eco-friendly flooring material using a ramie stem board, characterized in that the base plate is included in the base material. delete delete 11. The method according to any one of claims 8 to 10,
The ramie stem board is an eco-friendly flooring material using a ramie stem board, characterized in that the modified ramie stem powder 6 to 30 parts by weight, synthetic resin 50 to 84 parts by weight, additives 10 to 20 parts by weight. delete 11. The method according to any one of claims 8 to 10,
The ramie stem board is an eco-friendly flooring material using a ramie stem board, characterized in that the modified ramie stem powder 6 to 30 parts by weight, synthetic resin 40 to 74 parts by weight, lime 10 to 20 parts by weight, additives 4 to 16 parts by weight. . delete The method of claim 9,
The fiberboard is an eco-friendly flooring material using a ramie stem board, characterized in that the medium density fiberboard (MDF: Medium Density Fiberboard) or high density fiberboard (HDF: High Density Fiberboard).

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