JP2001012067A - Soundproof warm-water heating floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a soundproof warm-water heating floor having high heating efficiency and high soundproof performance and excellent in walking feeling. SOLUTION: A heat radiation pipe 3 is piped in the inside of a mat body 1 whose 25% compression strength is 1.5-15 kgf/cm2, measured in accordance with JIS K7220, a warm water mat on which a heat radiation plate 4 is stuck on the upper face of the mat body 1 is formed on the lower face of a warm water soundproof floor material stuck directly on the lower face of a wooden floor material 5, and a sound insulation layer 6 comprising non-woven fabric in which the weight is 10-150 g/m2, and the size is 10-100 d/f is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a soundproof hot water heating floor.

[0002]

2. Description of the Related Art In recent years, due to an increase in demand for floor heating, a hot water mat formed by applying a groove to a resin foam and passing through a hot water pipe has been widely used.

[0003] These hot water mats are finished with a flooring floor, a cork tile finish, a tatami mat finish, a carpet finish and the like, and a construction method of laying the hot water mat on a base plywood usually stretched on a joist is adopted.

[0004] Of these, when a heat sink is attached to the surface of a warm water mat and flooring with a flooring floor is used for an apartment building, a noise problem is caused downstairs, so that the floor is provided with soundproofing performance. It is necessary to let In order to effectively impart soundproofing performance, it is common to apply a soundproofing material directly to a floor material, and a hot water mat is usually used by being further attached to a lower portion thereof.

[0005] However, such a hot water mat has the following disadvantages. 1) Since the soundproofing layer is attached to the upper part of the heat sink, the amount of heat transmitted to the floor surface is reduced, and the heating efficiency is deteriorated. 2) The (small) joists are usually made of wood, and are directly interposed between the flooring floor and the base plywood, so that the sound above the floor is easily transmitted downstairs via the (small) joists.

[0006] Therefore, in Japanese Patent Application Laid-Open No. H8-327077, as shown in FIG.
It is described that the nonwoven fabric d is laid under the hot water pipe c between the heat radiation plate b and the nonwoven fabric d so as to be laid on the small joist e to improve the thermal efficiency. Further, in the prior art of the same publication (FIG. 6 of the same publication), a configuration in which a nonwoven fabric is bonded to a lower surface of a mat body is described.

[0007]

However, when such a configuration is actually used, sinking occurs when walking on the upper surface of the pipe, which is not preferable because it causes a feeling of strangeness. In addition, when the nonwoven fabric is bonded to the lower surface of the mat body, a normal nonwoven fabric (yarn thickness about 5 denier) is used.
In the case of using, there is a problem that the sound insulation effect is small.

Further, when a soft urethane resin foam widely used as a soundproofing material is used to provide soundproofing performance, when the soundproofing material is attached immediately below a floor material (upper surface of a heat sink), heating is performed as described above. When the efficiency is deteriorated and the adhesive is attached to the lower part of the warm water mat, the soundproofing performance is insufficient with a thin (3 mm or less) soft urethane-based resin foam, and the thick (3 mm)
The soft urethane resin foam (more than mm) has a large sinking, and when walking, a fluffy feel (a so-called “sickness phenomenon”) occurs and the feel becomes extremely poor.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a soundproof hot-water heating floor having high heating efficiency and high soundproofing performance, and having a good walking feeling.

[0010]

According to the present invention, a soundproof hot-water heating floor according to the present invention has a 25% measured according to JIS K7220.
A hot water soundproof floor in which a heat radiating pipe is provided inside a mat body having a compressive strength of 1.5 to 15 kgf / cm ² and a heat radiating plate is attached to an upper surface of the mat body directly to a lower surface of a wooden floor material. On the lower surface of the material, the basis weight is 10 to 150 g
/ M ² , and a sound insulation layer made of a nonwoven fabric having a yarn thickness of 10 to 100 denier.

[0011] The hot water mat used in the present invention comprises:
A radiating pipe is provided inside the mat body, and a radiating plate is attached to an upper surface of the mat body.

The material used for the mat body is not particularly limited as long as it has a 25% compressive strength of 1.5 to 15 kgf / cm ² measured according to JIS K7220. Resin foam, bead expanded polystyrene resin foam, extruded expanded polyethylene resin foam (including crosslinked polyethylene foam), extruded expanded polypropylene resin foam (including crosslinked polypropylene foam), rigid polyurethane resin foam And the like.

When the compressive strength is too low, the flexibility of the mat body is too high, and when constructed under the floor, a “sickness phenomena” occurs when walking, and the walking feeling becomes extremely poor. The resulting floor has reduced flexibility and damping properties, and does not provide a sufficient soundproofing effect even if the soundproofing layer is attached to the lower part via a mat. Must be attached. In this case,
Since the soundproof layer is laminated on the floor heating panel, the heating efficiency is extremely low. Therefore, the compressive strength of the mat body is limited to 1.5 to 15 kgf / cm ² .

The conditions for measuring the compressive strength are determined by compressing a foam having a thickness of 12 mm at a speed of 6 mm / min and applying a stress at the time of 25% compression.

In the nonwoven fabric constituting the sound insulating layer used in the present invention, if the basis weight is too small, the sound insulating property is reduced, and if it is too large, the thickness of the sound insulating layer is increased, and the amount of sinking during walking increases. Because walking feeling is extremely poor, 10
To 150 g / m ² , preferably 20 to 100 g / m ^2.
g / m ² .

The thickness of the yarn forming the nonwoven fabric is 10 to 100, since the soundproofing performance is insufficient if the yarn is too thin or too thick.
It is limited to denier, preferably 30 to 90 denier.

The material of the yarn forming the nonwoven fabric is not particularly limited, but an olefin-based material is preferred in terms of weather resistance and water resistance. In particular, low-density polyethylene, especially linear low-density polyethylene, is preferable.
g / cm ³ or less, more preferably 0.905 g / cm ³
Those having ³ or less can be preferably used because they are excellent in the above performance and hardly cause friction during walking.

[0018] However, the 1
Friction noise is easily generated when the yarn having a thickness of 0 to 100 deniers is compressed, and therefore, when it is attached to the lower part of the warm water mat, when walking on the upper surface of the mat, a friction noise called "roughness" is easily generated. Become. This tendency is remarkable when a highly crystalline (that is, high density) material yarn having a large coefficient of friction is used as the nonwoven fabric.

Therefore, the nonwoven fabric has a density of 0.850-0.
Preferably, it contains at least 50% by weight of yarn from an olefin-based material of 900 g / cm ³ , and 75% by weight.
It is more preferable to contain the above.

If necessary, a closed cell foam such as a crosslinked polyolefin foam, a synthetic fiber paper, or the like may be attached to the nonwoven fabric in order to improve the adhesion to the mat body. By doing so, in addition to improving the adhesion to the mat body, it also has an effect as a water blocking layer.

The method for producing the nonwoven fabric is not particularly limited, and examples thereof include the following method. After the fibers are passed through a cotton opener or cotton blender for spinning, they are passed through a cotton wool machine or a garnet machine to form a web (thin cotton), which is stacked in parallel or crosswise, or Ra in air flow.
Using a web having an irregular arrangement obtained by ndo-Webber or the like, using a dry method in which the web is immersed or sprayed in an adhesive solution while being sent by a guide screen, squeezed with a mangle, dried and heat-treated. The adhesive is often a natural or synthetic latex or a combination of urea and a melamine resin agent, and an acrylonitrile-butadiene or acrylonitrile adhesive is generally used as the synthetic latex.

(Action) The soundproof hot water heating floor of the present invention
A hot water mat in which a heat radiating pipe is piped inside a mat body having a 25% compressive strength of 1.5 to 15 kgf / cm ² measured in accordance with IS K7220 and a heat radiating plate is stuck on an upper surface of the mat body is made of wood. On the lower surface of the warm water soundproofing floor material directly attached to the lower surface of the floor material, the basis weight is 10 to 150 g / m ² ,
Since the sound insulation layer made of a nonwoven fabric having a yarn thickness of 10 to 100 deniers is formed, the sound insulation layer also has a heat insulating effect, and a mat is directly installed under the floor material. It has good heating efficiency as a floor material and high soundproofing performance. Furthermore, since there is no problem that the foam is too soft, the amount of sinking during walking is small, and the walking performance is excellent.

Further, the nonwoven fabric has a density of 0.850 to
When the thread containing 0.900 g / cm ³ of the olefin-based material is contained in an amount of 50% by weight or more, a friction sound is less likely to be generated when walking on the upper surface of the mat.

[0024]

EXAMPLES The present invention will now be described specifically with reference to examples, but the present invention is not limited to these examples. (Example 1) As shown in FIG. 1, a polystyrene foam (manufactured by Asahi Kasei Corporation, trade name “Stylofoam”, 25% compression strength 6 kgf / cm ² ) having a foaming ratio of 20 times and a thickness of 12 mm was used as the mat body 1. After cutting to 310 × 910 mm, the groove 2 (width, depth 10 m) with a pitch of 100 mm
m) by the router processing method, and radiating pipe 3
(A polyethylene tube manufactured by Inoac Corporation, diameter: 10 mm, wall thickness: 1.5 mm), and further, the upper surface of the foam is radiated by a heat sink 4.
(Inoac Co., Ltd., burning aluminum tape for modular panels, trade name "chicken plate DMTA470-25"),
A hot water mat was obtained.

A plywood 5 having a thickness of 9 mm is adhered to the upper surface of the obtained warm water mat as a wooden flooring material, and a nonwoven fabric 6 made of polyethylene terephthalate fiber (basis weight 25 g / m ² , yarn thickness 70 denier) is further attached to the lower surface of the warm water mat. ) Was applied to produce a soundproof hot water heating floor.

(Example 2) A bead expanded polypropylene foam (25% compressive strength: 3 kgf / cm ² ) having an expansion ratio of 15 times and a thickness of 12 mm was used as the mat body 1, and the basis weight was 65 g / m ² as the nonwoven fabric 6, and a yarn was used. Except that 35 denier thick was used, a soundproof hot water heating floor was produced in the same manner as in Example 1.

Example 3 High-density polyethylene (manufactured by Mitsubishi Chemical Corporation, product number "HY340", density 0.952 g / cm)
³ , 25 parts by weight, MI = 1.5, melting point 133 ° C., high-density polyethylene (manufactured by Mitsubishi Chemical Corporation, product number “HJ381P”,
Density 0.951 g / cm ³ , MI = 9.0, melting point 132
° C) 25 parts by weight, polypropylene (manufactured by Mitsubishi Chemical Corporation, product number “MA3”, density 0.900 g / cm ³ , MI = 11,
Melting point 151 ° C) 29 parts by weight, silane-crosslinkable polypropylene (manufactured by Mitsubishi Chemical Corporation, part number “XPM800HM”) 21 parts by weight, silane crosslinking catalyst (Mitsubishi Chemical Corporation, part number “PZ-1”)
0S ") 1 part by weight of a mixture of 9 parts by weight of azodicarbonamide (manufactured by Otsuka Chemical Co., Ltd., product number" SO-20 ") as a pyrolytic foaming agent is 180 parts by a twin-screw extruder (44 mm in diameter).
The mixture was melted and kneaded at ℃, and a softened sheet-like foamable thermoplastic resin was extruded from a T-die having a surface length of 300 mm and a lip of 1.5 mm.

Further, on one side, concave portions having a depth of 5 mm and a diameter of 4 mm are arranged in a staggered manner, and have a diameter of 250 mm and a surface length of 300 mm.
The sheet-like foamable thermoplastic resin is cooled while being shaped between a pair of rolls having a height of 5 mm and a diameter of 4 m by being immersed in hot water of 98 ° C. for 2 hours and then dried.
An expandable crosslinked thermoplastic resin sheet 7 (see FIGS. 2 and 3, with a degree of crosslinking of 15%) in which m convex portions were arranged in a staggered manner was obtained.

In the foamable crosslinked thermoplastic resin sheet 7 obtained as described above, the foamable crosslinked thermoplastic resin granules 71 are formed at portions corresponding to the concave portions of the forming roll, and The crosslinkable thermoplastic resin granules 71 were connected at their ends by a 0.4 mm thick foamable crosslinked thermoplastic resin thin film 72 to form the foamable thermoplastic resin sheet 7 as a whole. The obtained foamable crosslinked thermoplastic resin sheet 7 was placed on a polytetrafluoroethylene sheet and supplied to an endless belt to obtain a foam. The foamed crosslinked thermoplastic resin sheet 7
Feed rate is 0.5mm / min, heating device is 5m long
m, temperature 210 ° C. The cooling device is 5m long
m and the temperature was 30 ° C. The 25% compressive strength of the obtained foam was 4.2 kgf / cm ² .

Using the obtained foam (magnification: 20) as the mat body 1, a hot water mat was obtained in the same manner as in Example 1, and a polyethylene fiber non-woven fabric (density 0.940)
g / m ³ , basis weight 65 g / m ² , yarn thickness 60 denier)
Was attached to produce a soundproof hot water heating floor.

Example 4 As a nonwoven fabric made of polyethylene fiber, the density was 0.880 g / m ³ and the basis weight was 100 g / m.
^{2. A} soundproof hot-water heating floor was produced in the same manner as in Example 3 except that a yarn made of yarn having a thickness of 60 denier was used.

Example 5 80% by weight of a nonwoven fabric made of polyethylene fiber having a density of 0.880 g / m ³ ,
20% by weight of a mixture having a density of 0.940 g / m ³ ,
A soundproof hot-water heating floor was produced in the same manner as in Example 3, except that a yarn having a basis weight of 100 g / m ² and a yarn thickness of 60 denier was used.

(Comparative Example 1) Non-woven fabric 6 is made of plywood 5 and heat sink 4
Except that it was arranged in the middle between
A soundproof hot water heating floor was made.

(Comparative Example 2) In place of the nonwoven fabric 6, a soft open-cell urethane foam (magnification: 50 times, thickness: 3.5 mm) was arranged, and a soundproof hot water heating floor was produced in the same manner as in Example 1.

(Comparative Example 3) As the mat body 1, a crosslinked polyethylene foam (manufactured by Toray Industries, expansion ratio 20 times, thickness 4)
mm) are stacked three times (25% compressive strength is 0.4kgf
/ Cm ² ) in the same manner as in Example 1 to produce a soundproof hot water heating floor.

(Comparative Example 4) As a mat body 1, a bead expanded polypropylene foam (expansion ratio 4 times, thickness 12
mm, 25% compressive strength is 18 kgf / cm ² )
In the same manner as in Example 1, a soundproof hot water heating floor was produced.

(Comparative Example 5) As the nonwoven fabric 6, a nonwoven fabric made of polyethylene terephthalate fiber (having a basis weight of 25 g /
m ² , yarn thickness 5 denier), except that a soundproof hot water heating floor was produced in the same manner as in Example 1.

(Comparative Example 6) As the nonwoven fabric 6, a nonwoven fabric made of polyethylene terephthalate fiber (basis weight: 200 g / m2)
² , a soundproof hot-water heating floor was produced in the same manner as in Example 1 except that the yarn thickness was 70 denier.

(Comparative Example 7) As the nonwoven fabric 6, a nonwoven fabric made of polyethylene terephthalate fiber (basis weight 25 g /
m ² , yarn thickness 150 denier)
In the same manner as in Example 1, a soundproof hot water heating floor was produced.

Comparative Example 8 As the nonwoven fabric 6, a nonwoven fabric made of polyethylene terephthalate fiber (having a basis weight of 5 g / m ² ,
Example 1 except that a yarn thickness of 70 denier was used.
In the same manner as above, a soundproof hot water heating floor was produced.

Evaluation The soundproof hot water heating floors obtained in Examples 1 to 5 and Comparative Examples 1 to 8 were subjected to the following evaluations.

(Thermal Efficiency) Hot water of 80 ° C. was flowed through the polyethylene pipe of the obtained soundproof hot water heating floor, and the heat efficiency (the ratio of the amount of heat transmitted to the upper surface to the total amount of heat) was measured by a heat flow meter (manufactured by Eiko Seiki). It was measured.

(Soundproofing) The obtained soundproofing hot water heating floor was
The lightweight floor impact level LL was measured according to IS A1418.

(Walking Feeling) The amount of sinking when a steel ball having a diameter of 50 mm was pressed with a force of 80 kgf against the wooden floor material side of the obtained soundproof hot water heating floor was measured. Usually around 2mm,
Specifically, 1.4 to 2.6 mm is considered to be good. 4
mm or more causes fluffy discomfort when walking,
At m, the soles hurt as if walking on concrete.

(Friction sound during walking) The soundproof hot water heating floor thus obtained was placed on a slab having a thickness of 150 mm, and a third person listened to a friction sound when a person weighing 60 kg walked on the floor. When one person could hear the fricative noise, it was evaluated as x, and when not all of them could be heard, it was evaluated as ○. The above results are summarized in Table 1.

[0046]

[Table 1]

[0047]

As described above, the soundproofing hot water heating floor of the present invention has a high heating efficiency, a high soundproofing performance and a good walking sensation since it has the above-mentioned structure.

Further, in the soundproof hot water heating floor according to the second aspect of the present invention, a frictional noise during walking is less likely to be generated.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a soundproof hot water heating floor according to the present invention.

FIG. 2 is a cross-sectional view showing an example of an expandable crosslinked thermoplastic resin sheet that can be used for the soundproof hot water heating floor of the present invention.

FIG. 3 is a plan view of the foamed crosslinked thermoplastic resin sheet of FIG. 2;

FIG. 4 is a schematic diagram showing an example of a conventional soundproof hot water heating floor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mat body 3 Heat radiating pipe 4 Heat radiating plate 5 Wooden floor material 6 Sound insulation material (nonwoven fabric)

Claims (2)

[Claims] 1. A heat radiating pipe is piped inside a mat body having a 25% compressive strength of 1.5 to 15 kgf / cm ² measured according to JIS K7220, and a heat radiating plate is attached to an upper surface of the mat body. The hot water mat is directly attached to the underside of the wooden flooring material.
A soundproof hot water heating floor, wherein a sound insulation layer made of a nonwoven fabric having a thickness of 150 g / m ² and a yarn thickness of 10 to 100 denier is formed. 2. The nonwoven fabric according to claim 1, wherein said nonwoven fabric has a density of 0.850 to 0.9.
50 g / cm ³ of olefin-based material
The soundproof hot-water heating floor according to claim 1, wherein the floor is contained in an amount of at least 1% by weight.