KR101568964B1 - A Flooring For Arrest Of Noise - Google Patents

Abstract

The present invention relates to a floor material for preventing noise, which comprises a honeycomb panel made of a honeycomb structure, and upper and lower fiber plywoods integrally joined to the upper and lower surfaces of the honeycomb panel and made of hemp fibers. In the flooring for preventing noise according to the present invention, a honeycomb panel made of a honeycomb structure is applied to reduce the overall weight of the flooring and to improve the thermal conductivity by attaching the upper and lower fiber plywoods, It is advantageous in that the heating efficiency is higher than the flooring made of conventional wood when applied to the floor of the indoor space in a normal building.

Description

A Flooring For Arrest Of Noise

The present invention relates to a floor material for preventing noise, and more particularly, to a floor material for preventing noise, which can minimize the interlayer noise at the time of construction with a building floor material and which is lightweight and has excellent thermal conductivity and strength.

Generally, a two-story building such as an apartment or apartment house is constructed by constructing a concrete slab according to the number of floors of a building, completing the foundation work, and then placing heating pipes at regular intervals on a concrete slab, To a predetermined thickness.

Thus, slabs dividing layers and layers of multi-layered multi-storey buildings such as apartments, high-rise buildings, etc., are constructed only by concrete, so that vibration due to noise and impact generated in the corresponding layer of the building is directly transmitted through the inter- , Which is the biggest cause of the interstory dispute.

In order to prevent the above-mentioned noise, in the proposed Utility Model No. 20-0405592 (hereinafter referred to as "Reference 2") proposed in Japanese Patent Laid-Open No. 10-2012-0007318 (hereinafter referred to as "Reference 1" have.

Reference 1 refers to a honeycomb flooring material, which comprises a core of a honeycomb structure constituting a flooring material, a side member joined to a side of the core of the honeycomb structure by a solids or high-density fiberboard (HDF) A veneer glued to cover the entire upper and lower portions of the core and sol major side member, an upper finish to be laminated to the upper veneer to finish the upper surface of the flooring, and a laminate to the lower veneer for top- And a tongue / groove member formed on the side surface by plank processing for connection of the flooring material. However, in such a structure, the honeycomb core can be used to reduce the weight, but the veneer attached to the surface is usually made of a thin plate of wood used for making plywood or laminated material, which lowers heat transfer efficiency. That is, the heating efficiency of the bottom surface of the winter is not efficiently transmitted to the indoor space through the veneer, so that the heating efficiency is low and the strength of the veneer is also weak.

The reference 2 is related to a bottom finishing material using a honeycomb structure, and includes a hexagonal cell upper plate and a lower plate, in which various materials, particularly waste paper, are used as materials, and hexagonal pillars protrude; A honeycomb structure in which the two upper plates and the lower plate are overlapped with each other in the direction in which the hexagonal columns are protruded so that the hexagonal columns of the upper plate are interposed between the hexagonal columns of the lower plate and all the hexagonal columns are opened; A bottom finish top plate adhered on the honeycomb structure; And a sound absorption and absorption pad bonded under the honeycomb structure. However, this structure also has low heat transfer efficiency and low strength due to the use of laminated sheets of a plurality of sheets so that the wood flooring of a floor finish is a general floor finish and a thin wood board or a thin multiple wood board is placed at a right angle.

Accordingly, it is an object of the present invention to provide an anti-noise floor material which is advantageous to use as a floor material and has high strength, while being lightweight and having excellent heat transfer efficiency while preventing interlayer noise.

Particularly, the present invention aims to provide an environmentally friendly floor material for preventing noise by mixing natural fibers such as hemp fibers.

In order to solve such a technical problem,

A honeycomb panel made of a honeycomb structure and upper and lower fiber plywood integrally joined to the upper and lower surfaces of the honeycomb panel and made of hemp fibers.

15 to 25 parts by weight of PP (polypropylene), 15 to 25 parts by weight of a low melting point LMPP (Low-melting Polypropylene), 15 to 25 parts by weight of PE (polyethylene) And 35 to 50 parts by weight of natural fibers.

Then, the upper and lower fiber plywood sheets are cut into a predetermined length and mixed with raw materials in which PP (polypropylene), LMPP (low-melting polypropylene) and PE (polyethylene) are mixed and rubbed, Shaped webs are sequentially fabricated by cross-laminating the webs so that the fiber directions of the webs cross each other, followed by thermocompression and cooling.

In addition, high pressure melamine (HPM) is further attached to the surface of the upper fiber plywood as a surface material for finishing the outer appearance.

In the flooring for preventing noise according to the present invention, a honeycomb panel made of a honeycomb structure is applied to reduce the overall weight of the flooring and to improve the thermal conductivity by attaching the upper and lower fiber plywoods, It is advantageous in that the heating efficiency is higher than the flooring made of conventional wood when applied to the floor of the indoor space in a normal building.

In addition, the present invention utilizes polypropylene (PP), low-melting polypropylene (LMPP), and polyethylene (PE), which are high in strength and harmless to the human body, by using fiber plywood using natural fibers.

1 is a cross-sectional view of a floor material for preventing noise according to an embodiment of the present invention.
2 is a cross-sectional view illustrating a floor material for preventing noise according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

The flooring material for preventing noise according to the present invention is a structure in which honeycomb is combined with a fiber plywood fabricated using hemp fiber.

1, the floor material 1 for preventing noise according to the present invention comprises: a honeycomb panel 100 having a honeycomb structure; a plurality of upper portions (not shown) formed integrally with the upper and lower surfaces of the honeycomb panel 100, And the lower fiber plywood 200 and 210.

Hereinafter, the constitution of each part of the present invention will be described in detail.

The honeycomb panel 100 is a honeycomb structure having both open sides and has a honeycomb structure in which polygonal columnar shapes such as triangular, square, pentagonal, hexagonal, and the like are continuously formed.

The honeycomb panel 100 may be made of a hard synthetic resin material or a metal material so as to maintain a suitable strength as a bottom material. However, the honeycomb panel 100 may be made of a compressed paper material if the strength is sufficient according to the conditions.

The upper and lower fiber plywoods 200 and 210 are manufactured in the same manner and are integrally coupled to the upper and lower surfaces of the honeycomb panel 100.

15 to 25 parts by weight of PP (polypropylene), 15 to 25 parts by weight of a low melting point resin LMPP (Low-melting Polypropylene), 15 to 25 parts by weight of PE (polyethylene) And 35 to 50 parts by weight of a natural raw material hemp fiber.

Preferably, 20% by weight of PP, 20% by weight of LMPP, 20% by weight of PE and 40% by weight of natural fiber are prepared.

Polypropylene (PP) is generally regarded as the most safe plastic material. In recent years, polypropylene (PP) has been widely used as a substitute for polyethylene as a material for composing the upper and lower fiber plywoods 200 and 210.

The low-melting polypropylene (LMPP) is obtained by mixing polypropylene (PP), low-melting polypropylene (LMPP), polyethylene (PE) When heat is applied later, it melts at a low temperature and functions as an adhesive.

On the other hand, PE is widely used for automobile parts, electronic products, confectionary wrapping paper, paper coating, mask, etc. It is harmless to human body and is used for blending with hemp fiber.

The main raw material of the present invention is a natural raw material having excellent thermal conductivity and strength.

Such hemp fibers are extracted from the stem of a plant hemp, and are stiff, have good breathability, have a good absorbency, and are rapidly used as summer cloths. More specifically, hemp fiber is mainly used in garments such as flax (hemp), hemp (hemp), hemp (hemp) and jute (hemp) Such as leaf fibers, leaf fibers, coconut fiber, and the like, which are collected from the leaves, such as manila, sisal, aloe vera, new zealand, pineapple, Includes hard fibers.

Of course, hemp fibers have a disadvantage that they are easily wrinkled. In order to solve this problem, the present invention blends with PE (polyethylene).

That is, the upper and lower fiber plywoods 200 and 210 have properties of excellent strength and thermal conductivity while using environmentally friendly raw materials harmless to human body.

Hereinafter, a manufacturing process of the fiber plywood and the flooring used for the upper and lower parts will be described.

First, 20% by weight of PP (polypropylene), 20% by weight of LMPP (low-melting polypropylene), PE (polyethylene), and the like are cut into a predetermined length of 5 cm or less, ) Of 20% by weight, and 40% by weight of a raw material of hemp fiber.

In this case, the raw material is mixed by using a cotton machine and the fiber is loosened to remove the fibers.

In this way, a raw material is made of a thin paper-like fiber, which is a card-shaped fiber, which is separated into strands one by one using a carding machine (carding machine) webs are crossed in this order.

At this time, it is preferable that the fiber direction intersect at right angles when the webs are laminated, and fiber plywood of various thicknesses can be manufactured by adjusting the lamination height as required.

As webs are alternately laminated in this manner, they are pressed with a punching machine to form raw materials in the form of fibrous sheets, and then thermocompression is performed by a hot press in a state of heating at a temperature of about 170 DEG C, And cooling the raw material in the form of a plate by using a cooling press which is cooled to a temperature of about 25 캜 or less to complete a fiber plywood having improved strength and smooth surface.

In this case, the fiber plywood to be manufactured can be manufactured to have various thicknesses, but it can be usefully used as a flooring material with a thickness of 1 to 5 mm.

Of course, the fiber plywood is preferably cut to a size suitable for attaching to both the upper and lower surfaces of the honeycomb panel 100 and used.

The upper and lower fiber plywoods 200 and 210 manufactured as described above are formed by applying an adhesive to both surfaces of the honeycomb panel 100 and integrally attaching the honeycomb panel 100 or by laminating the honeycomb panel 100 on the upper surface of the lower fiber plywood 210, The floor material 1 can be manufactured by integrally joining the upper and lower fiber plywood 200 and 210 on both sides of the honeycomb panel 100 by thermocompression using a hot press in a state where the upper fiber plywood 200 is laminated.

2 is a diagram illustrating another embodiment of the present invention. The bottom member 1 includes a honeycomb panel 100 having a honeycomb structure and upper and lower fiber plywoods 200 and 210 integrally joined to the upper and lower surfaces of the honeycomb panel 100 and made of hemp fibers Pressure melamine (HPM) is integrally attached to the surface material 300, which finishes the appearance on the surface of the upper fiber plywood 200.

At this time, the high pressure melamine sheet (HPM) is impregnated and laminated with a thermosetting resin such as melamine or phenol resin on a natural or artificial pattern printed on one side of a paper or fibrous base material, Which is a plate-shaped raw material compression-molded by a pressure of 50 kgf / cm 2 or more. By using such high-pressure melamine (HPM), the surface material 300 is formed on the surface of the bottom material 1 with high-pressure melamine (HPM) on the surface of the upper fiber plywood 210, scratches and contamination of the bottom material surface can be prevented . Of course, such high-pressure melamine is strong against impact and dirt, and also has an effect of improving the physical properties of the flooring material (1).

Of course, high pressure melamine (HPM) may also be integrally attached to the surface of the lower fiber laminate 210 as a surface material for finishing the outer surface.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The scope of protection of the present invention should be construed under the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

1: Flooring
100: Honeycomb panel
200: upper fiber plywood
210: lower fiber laminate
300: Surface material

Claims (4)

A honeycomb panel 100 made of a honeycomb structure and upper and lower fiber plywoods 200 and 210 integrally joined to the upper and lower surfaces of the honeycomb panel 100 and made of hemp fibers,
15 to 25 parts by weight of PP (polypropylene), 15 to 25 parts by weight of low-melting polypropylene (LMPP), 15 to 25 parts by weight of PE (polyethylene) And 35 to 50 parts by weight of a natural raw material hemp fiber.
delete The method according to claim 1,
The upper and lower fiber plywoods 200 and 210 are made by cutting a permafrost to a predetermined length and mixing and mixing raw materials in which PP (polypropylene), LMPP (low-melting polypropylene) and PE (polyethylene) are mixed, A web as paper-shaped fibers is produced by sequentially laminating webs so that the fiber directions of the webs cross each other, followed by thermocompression bonding and cooling.
The method according to claim 1,
Wherein high-pressure melamine (HPM) is further attached to the surface of the upper fiber plywood (200) by a surface material (300) for finishing the outer surface.

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