KR101731380B1 - Sound Proof Material - Google Patents

Sound Proof Material Download PDF

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Publication number
KR101731380B1
KR101731380B1 KR1020150112626A KR20150112626A KR101731380B1 KR 101731380 B1 KR101731380 B1 KR 101731380B1 KR 1020150112626 A KR1020150112626 A KR 1020150112626A KR 20150112626 A KR20150112626 A KR 20150112626A KR 101731380 B1 KR101731380 B1 KR 101731380B1
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KR
South Korea
Prior art keywords
layer
synthetic resin
soundproofing
cotton
building
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KR1020150112626A
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Korean (ko)
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KR20170018685A (en
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이문평
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이문평
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0866—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements composed of several layers, e.g. sandwich panels or layered panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)

Abstract

A soundproofing material is disclosed in which a surface soundproofing layer, a wood layer, a cotton layer and a synthetic resin surface layer are successively joined together by an adhesive. In the soundproofing material of the present invention, the fiber sheet is integrally bonded to the inner surface of the synthetic resin surface layer to be bonded to the cotton layer, and the synthetic resin surface layer is bonded to the cotton layer by the fiber sheet. And an outer frame part corresponding to the outer frame part of the cotton layer and a supporting part coupled to and supporting the outer frame part, and a hollow is formed between the outer frame part and the supporting part. When the soundproofing material is installed on the inner wall of the building, the soundproofing material is fixed to the inner wall of the building by emitting a takapine to the outer wall of the building with the tacker in a state where the soundproofing layer is in contact with the inner wall of the building. According to the present invention, it is possible to manufacture a soundproofing material having excellent performance at low cost by introducing a cotton layer, and the soundproofing material of the present invention does not have a problem of distortion and deformation of a soundproofing material due to the introduction of a cotton layer.

Description

Sound Proof Material

The present invention relates to a soundproofing material, and more particularly, to a soundproofing material having a soundproofing material having excellent performance by introducing a cotton layer at low cost, and without distortion and deformation of a soundproofing material due to the introduction of a cotton layer.

Soundproofing materials are used not only for buildings such as cinemas, concert halls, etc. that use sound but also for creating a pleasant living environment in houses. As such a soundproofing material, various materials such as woven fabric, nonwoven fabric, and foamed resin are used.

Utility model registration No. 20-0321944 (registered on July 22, 2003) discloses a dustproof soundproofing material. An upper and lower PP sheet layer made of polypropylene microfibers formed on the upper and lower surfaces of the PET sheet layer, respectively, and an upper and a lower PP sheet layer formed on the upper surface of the upper PP sheet layer, A formed nonwoven layer, and a finished layer formed on the underside of the lower PP sheet layer. Here, the PET sheet layer and the upper and lower PP sheet layers are formed by sheeting the fibers through a general weaving process or a non-woven process.

Patent Registration No. 10-0989171 (registered on October 14, 2010) discloses a dustproof and soundproof material for a vehicle. This patent is an improvement of the above-mentioned utility model design, and it is possible to reduce the production cost by simplifying the production process by constructing the dustproof soundproofing material including the upper layer and the lower layer formed respectively at the upper and lower portions of the middle layer and the middle layer . Here, the intermediate layer is produced by sheet-making a fiber made of polypropylene through a general weaving process or a non-woven process, and the upper and lower layers are produced by sheeting a mixed fiber to which polyethylene is added through a weaving process or a nonwoven process .

Patent Registration No. 10-1295961 (registered on Mar. 08, 06. 2013) discloses a sound-absorbing panel. This patent applies an eco-friendly material to the surface of the sound absorbing material to improve the natural affinity and decorative property, and to release deodorization and far-infrared rays. Specifically, the sound-absorbing panel includes a sound-absorbing material, an eco-friendly material applied to the front or rear surface of the sound-absorbing material, a sound-absorbing frame having a plurality of sound-absorbing holes formed on the front or rear surface of the sound-absorbing material, a casing positioned outside the sound- And a hook provided on the frame or the casing. Here, the sound absorbing material is made of any one of a text, a felt, a cotton, a rock, a glass wool, a polyol and a foamed resin, and the environmentally friendly material is made of loess or charcoal.

On the other hand, in the above patent, it is described that a cotton can be used as a sound absorbing material, but the cotton is a bundle of natural fibers or synthetic fibers, unlike a woven fabric and a nonwoven fabric. In other words, when the cotton is formed into a rectangular parallelepiped shape and used as a soundproofing material, if the first side of the flocked cotton is attached to the inner wall of the building and the second side of the flocked cotton is attached to the finishing material, The platelets are twisted or deformed due to the load of the finishing material adhered to the second surface. For this reason, cotton is conventionally used as a thermal insulation material, such as a quilt of a quilt, but has been recognized as a material unsuitable for use as a soundproofing material and a sound absorbing material.

As a result of this recognition, the cotton itself has never been used as a soundproofing material or a sound absorbing material by itself, that is, not in a form surrounded by a surface cloth. It is proposed that the cotton can be used as a sound absorbing material in the above patent, but a specific form for use as a cotton sound absorbing material is not presented. However, in the specific structure shown in the above patent, only one side of the sound absorbing material is bonded to the sound absorbing frame, and the other side of the sound absorbing material is not bonded to anywhere. In this special structure, The problem may not occur.

On the other hand, the utility model registration No. 20-0476254 (registered on Feb. 05, 2015) discloses a heat insulating material. This utility model design is devised by the present applicant. The disclosed heat insulating material is formed by sequentially bonding a foamable synthetic resin layer, a wood layer and a synthetic resin surface layer to each other with an adhesive.

The inventors of the present invention paid attention to the fact that the cost of manufacturing a soundproofing material would be lowered if a cotton was used instead of a woven fabric and a nonwoven fabric as a soundproofing material and a method for overcoming the characteristics of a cotton which is not suitable for use as a soundproofing material As a result, the present invention has been achieved.

Accordingly, it is an object of the present invention to provide a soundproofing material which can produce a soundproofing material of excellent performance at low cost by introducing a cotton layer, and without distortion and deformation of a soundproofing material due to the introduction of a cotton layer.

In order to achieve the above object, the soundproofing material according to the present invention is formed by sequentially bonding a surface soundproof layer, a wood layer, a cotton layer and a synthetic resin surface layer by an adhesive. Wherein the synthetic resin surface material layer is bonded to the inner surface of the synthetic resin surface material layer combined with the cotton material layer so that the synthetic resin surface material layer is bonded to the cotton material layer by the fiber sheet, An outer frame portion corresponding to the outer frame portion and a support portion coupled to and supporting the outer frame portion, and a hollow is formed between the outer frame portion and the support portion.

When the soundproofing material is installed on the inner wall of the building, the soundproofing material is fixed to the inner wall of the building by emitting a takapine to the outer wall of the building with the tacker in a state where the soundproofing layer is in contact with the inner wall of the building.

The cotton layer is formed by compressing natural or synthetic fibers with a thickness of 2 to 7 mm.

Preferably, the surface acoustic barrier layer is a foamable synthetic resin layer or a gypsum board layer.

The foamed synthetic resin layer may have a bulk modulus of 0.5 to 2 mm so as to be in contact with the inner wall of the building by being embedded in the foreign matter portion corresponding to such foreign matter even if the foamed synthetic resin layer protrudes from the inner wall of the building, kgf / cm < 2 >.

The wood layer may be made of plywood.

The synthetic resin surface layer preferably has a pair of smooth sheets and a plurality of interstices formed therebetween to form a hollow between the smooth sheets and the interstices.

According to the present invention, it is possible to manufacture a soundproofing material having excellent performance at low cost by introducing a cotton layer, and the soundproofing material of the present invention does not have a problem of distortion and deformation of a soundproofing material due to the introduction of a cotton layer.

1 is a perspective view of a soundproofing material according to an embodiment of the present invention.
2 is an exploded perspective view of a soundproofing material according to an embodiment of the present invention.
3 is a state in which a soundproofing material according to an embodiment of the present invention is installed on an inner wall of a building.
4 is a view for explaining the principle of distortion and deformation of a sound insulating material due to a cotton layer in a sound insulating material having a cotton layer interposed therebetween.

Hereinafter, the present invention will be described in detail with reference to the drawings.

As shown in the drawing, the soundproofing material 10 of the present invention is formed by laminating a soundproofing layer 100, a wood layer 200, a cotton layer 300 and a synthetic resin surface layer 400 in this order to the adhesives 500, 600 and 700 As shown in FIG.

The surface soundproofing layer 100 is a surface facing the synthetic resin surface layer 400 in the soundproofing material 10 of the present invention. The surface soundproofing layer 100 is preferably a foamable synthetic resin layer or a gypsum board layer.

The foamable synthetic resin used for the foamable synthetic resin layer as the surface soundproofing layer is not particularly limited and may include expandable polystyrene resin such as styrofoam, isoprene, iso gold and the like, foamable polyethylene resin and the like.

In the soundproofing material 10 of the present invention, when the surface acoustic barrier layer 100 is formed of a foamable synthetic resin layer, the foamable synthetic resin layer preferably has an appropriate stiffness. That is, the foamable synthetic resin layer is preferably an elastic body. Particularly, it is preferable that the rigidity of the foamable synthetic resin layer is such that, for example, when the user presses with the thumb, it is restored when the finger is released.

Specifically, when the foamable synthetic resin layer is subjected to a load of 1 to 20 kg, more preferably, a load of 1 to 10 kg, particularly a load of 2 to 8 kg, on the foamable synthetic resin layer in an area of 4 cm 2 in the foamable synthetic resin layer, It is suitable if it has a bulk modulus of elasticity. That is foamed synthetic resin layer preferably has a bulk modulus of 0.25 ~ 5kgf / cm 2, more preferably 0.25 ~ 2.5kgf / cm 2, particularly 0.5 ~ 2kgf / cm 2 for use in the present invention.

3, when the soundproofing material of the present invention is installed on the inner wall 20 of the building, the foamable synthetic resin layer is brought into contact with the inner wall 20 of the building, The soundproofing material 10 can be firmly fixed to the building inner wall 20 because the foamable synthetic resin layer is not broken even if an impact that the takafine 800 penetrates through the foamable synthetic resin layer is emitted. In addition, even if there is a foreign substance which hinders the horizontal state of the building inner wall 20, such as a protrusion protruding from the inner wall 20 of the building, the foamable synthetic resin layer in such a foreign matter portion is embedded in correspondence with such foreign matter, As shown in Fig.

If the foamable synthetic resin layer is too hard, the foamable synthetic resin layer can not be brought into close contact with the inner wall 20 of the building if there is a foreign object such as a protrusion protruding from the inner wall 20 of the building, . Therefore, the soundproofing material 10 of the present invention is a soundproofing material 10 that, when the surface soundproofing layer 100 is formed of the foamable synthetic resin layer having appropriate rigidity as described above, the surface condition of the building inner wall 20 is perfectly flattened Since there is no need to remove the foreign matter, it is possible to provide convenience in construction.

In the soundproofing material 10 of the present invention, the wood layer 200 is not formed in the same area as the sound insulation layer 100, the cotton layer 300, and the synthetic resin surface layer 400, but is formed only in a part of the area. Specifically, the wood layer 200 includes an outer frame part 210 and a supporting part 220.

As shown in FIG. 2, the outer frame part 210 has an area corresponding to the outer surface of the sound insulation layer 100 and the outer layer of the cotton layer 300. That is, the outer frame part 210 is disposed below and above the outer sound insulation layer 100 and the outer layer of the cotton laminate 300. Here, the outer sound insulation layer 100 and the outer sound insulation layer 300 are formed of a sound insulation layer 100 having a predetermined width from the edges of the sound insulation layer 100 and the cotton layer 300 and a peripheral portion of the sound insulation layer 300 Means that the middle portions of the surface soundproofing layer 100 and the bedding layer 300 are excluded.

The supporting part 220 is placed between the outer frame parts 210 and is coupled to the outer frame part 210 to support the outer frame part 210. [ At this time, although it is preferable that the outer frame part 210 and the support part 220 are integrally formed, they need not necessarily be integrally formed.

 If the supporting part 220 is not provided, the wood layer 200 is formed only of the outer frame part 210 and a large hollow is formed in the outer frame part 210. According to such a structure, Or the stratum bed (300) is bent, the structural rigidity of the soundproofing material (10) can not be obtained. Therefore, the supporting portion 220 not only supports the outer frame portion 210, but also supports the surface soundproofing layer 100 and the bedding layer 300 disposed on the upper and lower portions thereof. It is preferable that the support portions 220 are composed of a plurality of spacers arranged at appropriate intervals in order to achieve such functions.

Thus, the wood layer 200 has a hollow 230 formed between the outer frame part 210 and the support part 220. As described below, the wood layer 200 not only allows the takafins to be easily and firmly coupled by the outer frame part 210, but also improves the soundproof performance by the hollows 230.

The wood layer 200 may be formed of various woods, but it is preferable that the wood layer 200 is made of a plywood in consideration of convenience and economical efficiency.

The cotton layer 300 is formed by compression of natural fibers or synthetic fibers, and is preferably formed in a rectangular parallelepiped shape. The bedding layer 300 should have a proper density to exhibit soundproofing performance. For this purpose, the cotton layer 300 may be formed to have a proper density by compressing the cotton. The bedding layer 300 used in the soundproofing material 10 of the present invention may be formed of a padding cotton which is usually applied to a garment such as a padding jumper and a thermosetting cotton used as a heat insulating material of a vinyl house.

In the soundproofing material 10 of the present invention, the thickness of the cotton layer 300 is preferably in the range of 2 to 7 mm, more preferably in the range of 3 to 5 mm. If the thickness of the cotton layer 300 is too small, the soundproof effect is insignificant and the manufacturing is difficult. On the other hand, if the thickness of the batting layer 300 is too large, the soundproof effect is further enhanced. However, since the thickness of the sound insulating material 10 is unnecessarily increased, the thickness of the batting layer 300 does not need to be large .

In the soundproofing material 10 of the present invention, the synthetic resin surface layer 400 may be those disclosed in the patent registration No. 10-0654210. Specifically, the synthetic resin surface layer 400 is a fiber sheet 411 integrally bonded to an inner surface of the synthetic resin surface layer 400, which is bonded to the cotton layer 300. The synthetic resin surface material layer 400 having such a structure can be formed by thermally bonding the fiber sheet 411 to the inner surface of the synthetic resin surface material before the synthetic resin surface material is completely cured.

The synthetic resin surface layer 400 is formed by a pair of smooth sheets 410 and 420 and a plurality of interstices 430 formed therebetween to form smooth sheets 410 and 420 and barrier walls 430 having a hollow 440 formed therebetween. In the synthetic resin surface layer 400 having such a structure, the fiber sheet 411 is integrally bonded to the inner surface of the first smooth sheet 410 coupled with the cotton layer 300, and the second smooth sheet And the fiber sheet 421 is also integrally bonded to the outer surface of the base sheet 420. [ The fibrous sheet 421 formed on the outer surface of the second smooth sheet 420 is bonded to the finish material such as wallpaper by an adhesive agent and the bonding force of the second smooth sheet 420 is improved by the fibrous sheet 421 do.

The soundproofing material 10 of the present invention having such a construction is fixedly installed on the inner wall 20 of the building. 3, the soundproofing material 10 is disposed so that the soundproofing layer 100 is brought into contact with the inner wall 20 of the building, and the synthetic resin surface layer 300 having the wood layer 200 thereon The takafin penetrates through the synthetic resin surface layer 400, the bedding layer 300, the wood layer 200, and the soundproofing layer 100 in order, and finally, (20). That is, the takapin 800 is installed on the soundproofing material 10 by being stuck on the synthetic surface material layer 400, the cotton layer 300, the wood layer 200, the soundproofing layer 100, and the building inner wall 20 of the soundproofing material 10, To the inner wall 20 of the building.

The soundproofing material 10 of the present invention can be firmly fixed to the inner wall 20 of the building. That is, the soundproofing material 10 of the present invention can be easily and firmly attached to the building inner wall 20 by a simple operation of firing the takap fin without requiring a complicated construction process for fixing the inner wall 20 to the building It is convenient. In addition, the soundproofing material 10 of the present invention has the effect of further improving the soundproofing performance by the structure of the wood layer 200 including the hollow 230 and the cotton layer 300 in addition to the workability.

As a general method for installing the soundproofing material on the inner wall of the building, concrete or mortar is placed separately on the inner wall of the building or on the inner wall of the building by pouring concrete, and a foamed synthetic resin or gypsum board of a soundproofing material is placed thereon. A method of curing concrete or mortar and a soundproofing material is applied. However, in the case of applying such a method, the soundproofing material 10 of the present invention in which the cotton layer 300 is interposed can not substantially exhibit soundproofing performance as described below.

Another method of installing the soundproofing material on the inner wall of the building is to connect the soundproofing material to the inner wall of the building by an adhesive. Even when such a method is applied, the soundproofing material 10 of the present invention in which the cotton layer 300 is interposed can not substantially exhibit soundproofing performance as described below.

Accordingly, the soundproofing material 10 of the present invention has a special structure and structure that can exhibit soundproofing performance only when it is applied to the building inner wall 20 by the takapin 800.

The soundproofing effect of the soundproofing material 10 of the present invention will be described in more detail. The phenomenon occurring in the bedding layer 300 is diagrammatically shown in FIG. 4 when a soundproofing material is formed on the inner walls of the building, such as the soundproofing material 10 of the present invention. 4 is the same as that in the case where the soundproofing material 10 of the present invention is installed on the building inner wall 20 without the takafin 800 in FIG. Degree

As shown in FIG. 4, in the soundproofing material 10 'in which the cotton layer 300 is interposed, the inner layer 200' is bonded to the cotton layer 300 on the first side surface 310 of the cotton layer 300, And an outer layer 400 'is bonded to the bedding layer 300 by an adhesive on the second side surface 320 of the bedding layer 300. However, the adhesive layer is not shown in Fig. The soundproofing material 10 'having such a structure is constructed such that the inner layer 200' is in contact with the inner wall of the building. That is, the outer layer 400 'forms the surface of the sound insulating material 10'.

In the soundproofing material 10 'thus constructed, the cotton layer 300 is not entirely integrated due to its own characteristics. That is, the load applied to the first and second side surfaces 310 and 320 may cause the bedding layer 300 to be twisted or deformed. Specifically, the first side surface 310 of the batting layer 300 is fixed to the building inner wall by the inner layer 200 '. Thus, it can be said that the first side surface 310 of the bedding layer 300 is fixed. However, the second side surface 320 of the batting layer 300 is bonded to the outer layer 400 ', but the outer layer 400' is not bonded to another fixed portion. That is, the outer layer 400 'is in a movable state.

In this state, the outer layer 400 'exerts a force to sag downward by the action of gravity by its own weight. However, the second side surface 320 of the batting layer 300 and the outer layer 400 'are tightly coupled, but not all of the cotton in the batting layer 300 are tightly coupled to each other. Therefore, the stranded layer 300 may be distorted or distorted due to the crack 330 generated therein. This crack 330 progresses progressively and eventually destroys the bedding layer 300 in whole or in part, so that the soundproofing material 10 'can not perform its function. This phenomenon progresses faster as the weight of the outer layer 400 'increases.

For this reason, in general, it has been recognized that a soundproofing material formed by interposing a cotton layer inside a soundproofing material can not exhibit substantially soundproofing performance, and thus a soundproofing material having such a structure has never been proposed or used. However, the present invention is new and remarkable in that a soundproofing material formed by interposing a cotton floor inside a soundproofing material can exhibit soundproofing performance by applying a construction method of fixing a soundproofing material to an inner wall of a building by takafine.

3, the soundproofing material 10 of the present invention is fixed to the inner wall 20 of the building by the takap fin 800. As shown in FIG. Therefore, even if the soundproofing material 10 of the present invention is not integrated with the cotton layer 300 itself, the synthetic resin surface layer 400 is formed by the tacapin 800 by the inner wall 20 of the building, the soundproofing layer 100, Layer 300 is not cracked due to the self-weight of the synthetic resin surface material layer 400 because it is integrated with the layer 200.

As a result, it can be said that the present invention establishes a condition that enables the sound insulation performance to be exerted by the structure considered to be impossible by the structure of the sound insulation material, and that the sound insulation material with the cotton layer inside can not substantially exhibit soundproofing performance And by overcoming the limitations of the cotton layer itself. That is, the padding cotton to be applied to garments such as padding jumper, and the rectangular cotton plate type cotton such as thermosetting cotton used as a heat insulating material of a vinyl house can be manufactured at a very low cost compared with soundproof materials such as woven fabric and nonwoven fabric, It is not suitable for use as a soundproofing material. The present invention has been achieved by overcoming such limitations of the cotton wool itself.

In the soundproofing material 10 of the present invention, the cotton layer 300 not only exhibits a soundproof effect by its own characteristics, but also exhibits a soundproof effect by interaction with the hollow 230 of the adjacent wood layer 200 do. In other words, the hollow 230 of the wood layer 200 prevents the sound that is weakened by the cotton layer 300 from being transmitted to the soundproofing layer 100, so that the sound energy is further lost in the hollow 230. Therefore, the soundproofing material 10 of the present invention exerts excellent soundproofing performance.

10,10 ': Sound insulation material 20: Building inner wall
100: Surface soundproofing layer 200: Wood layer
210: outer frame part 220:
230: hollow 200 ': inner layer
300: cotton layer 400: synthetic resin surface layer
410: first smoothing sheet 411: fiber sheet
420: second smoothing sheet 421: fiber sheet
430: barrier wall 440: hollow
400 ': outer layer 500, 600, 700: adhesive layer
800: Takapin

Claims (7)

A soundproofing material in which a surface soundproofing layer, a wood layer, a cotton layer and a synthetic resin surface layer are sequentially formed by bonding with an adhesive,
Wherein the synthetic resin surface material layer is integrally bonded to the inner surface of the synthetic resin surface material layer, the synthetic resin surface material layer is combined with the cotton layer by the fiber sheet,
Wherein the wood layer comprises an outer frame portion corresponding to the outer sound field layer and the outer layer portion of the cotton layer and a support portion coupled to and supporting the outer frame portion and a hollow is formed between the outer frame portion and the support portion ,
Wherein the soundproofing material is fixed to an inner wall of the building by emitting a takap fin by a taker to an outer frame portion having the wood layer in a state where the soundproofing material is in contact with an inner wall of the building,
And the density of the cotton layer is uniform as a whole. delete The method according to claim 1,
Wherein the cotton layer is formed by compressing natural or synthetic fibers in a thickness of 2 to 7 mm. The method according to claim 1,
Wherein the surface sound insulating layer is a foamed synthetic resin layer or a gypsum board layer. 5. The method of claim 4,
The foamed synthetic resin layer may have a bulk modulus of 0.5 to 2 mm so as to be in contact with the inner wall of the building by being embedded in the foreign matter portion corresponding to such foreign matter even if the foamed synthetic resin layer protrudes from the inner wall of the building, kgf / cm < 2 >. The method according to any one of claims 1, 3, 4, and 5,
Wherein the wood layer is made of plywood. The method according to any one of claims 1, 3, 4, and 5,
Wherein the synthetic resin surface layer is formed by a pair of smooth sheets and a plurality of interstices formed therebetween, and a hollow is formed between the smooth sheets and the interstices.
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Publication number Priority date Publication date Assignee Title
KR200476254Y1 (en) * 2014-09-17 2015-02-12 이문평 Heat Insulator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200476254Y1 (en) * 2014-09-17 2015-02-12 이문평 Heat Insulator

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