KR101492034B1 - A sound absorption Yarn and Textile and Product Method of It - Google Patents

Abstract

The present invention relates to a manufacturing apparatus for a sound-absorbing agent coating yarn in which a sound-absorbing agent is filled in a general yarn and a sound-absorbing agent is coated on the outside of the yarn, a manufacturing apparatus and a manufacturing method of the sound- And a sound absorbing agent coated paper made by coating a sound absorbing agent on a surface (one surface) of a conventional paper cloth can be provided.
The present invention can produce a sound absorbing coating yarn having various sound absorbing performance according to characteristics by manufacturing a sound absorbing agent coated yarn by a manufacturing apparatus of a sound absorbing agent coating yarn coating a sound absorbing agent on the outside of a yarn, It has a sound absorption function and can be provided by directly weaving various kinds of sound absorber coated stitches according to the purpose and characteristics required.
In addition, the sound-absorbing material coated zigzag according to the present invention can maximize a sound absorption effect by coating a sound-absorbing material on one surface of a sound-absorbent material coated with various sound-absorbing agent coating yarns according to purposes and characteristics.
Further, since the sound absorbing material fabric sheet according to the present invention is coated with a sound absorbing material on one side of the surface of a woven fabric woven using plain yarn, almost all general fabrics can be used as a sound absorbent fabric, and a sound absorbing material Can be provided with various kinds of thicknesses depending on the purpose and characteristics of use.

Description

Technical Field [0001] The present invention relates to a manufacturing apparatus of a sound absorbing agent coating yarn, and a sound absorbing agent fabricated using the sound absorbing agent coated yarn and a sound absorbing agent coated yarn using the same, It}

The present invention relates to a manufacturing apparatus for coating a sound-absorbing material on a plain yarn, a sound-absorbing material coated with a sound-absorbing agent coating yarn and a sound-absorbing material coated with a sound-absorbing material coated on the surface of the resilient material coated with the sound- The present invention relates to a sound absorbent article fabric.

More specifically, a manufacturing apparatus and a manufacturing method of a sound-absorbing agent coating yarn in which a sound-absorbing agent is filled in a general yarn and a sound-absorbing agent is coated on the outside of the yarn, a manufacturing apparatus and a manufacturing method of the sound- A sound absorbing agent coated zigzag fabric woven using a sound absorbing agent coated yarn produced by a manufacturing method of a sound absorbing agent coated yarn, and a method of coating a sound absorbing agent on the surface (one side) of a conventional fabric and a sound absorbing agent coated paper produced by the method .

Generally, sound absorption, soundproofing, and sound insulation are intended to prevent sound from being discharged (discharged) to the outside, or to prevent sound from entering from the outside.

Soundproofing, soundproofing and sound insulation to block sound are widely required in various offices, industrial facilities, and various machine tools including general households, and as means for sound absorption (soundproofing and sound insulation) It is commonly known to use a sound absorbing wallpaper, a sound absorbing paint, a sound absorbing fabric, a sound absorbing sheet, and a sound absorbing wall.

The present invention is to provide a sound absorbent coating yarn and a sound absorbing material coating resilient material and a sound absorbing material fabric among the means for sound absorption, sound insulation and sound insulation (hereinafter referred to as " sound absorption "

As described above, those conventionally used for the purpose of sound absorption include those disclosed in Korean Utility Model Laid Open No. 20-2010-4918 (anion, wallpaper in the possibility of far-infrared ray emission), Laid-Open Patent Publication No. 10-2008-5212 And a method of manufacturing the same), Published Unexamined Patent Application No. 10-2008-40078 (flooring material using a fabric made of a fiber yarn coated with resin), Laid-Open Patent Application No. 10-2013-17732 (Manufacturing method of functional fiber emitting far infrared rays and negative ions and its use), registered patent No. 10-897319 (heat-sealable soundproof sheet), and the like are known.

The publicly disclosed utility model No. 20-2010-4918 (anion, wallpaper in the possibility of far-infrared emission) is obtained by mixing (mixing) ceramic powder in which far-infrared rays are radiated with tourmaline powder and germanium powder, It is formed by applying a functional material to natural fiber. This is because it mixes only ceramic powder, tourmaline powder and germanium powder without mixing a substance that obtains a sound absorption effect professionally in an acrylic resin fixing agent, so that far infrared ray and anion are emitted, (Soundproofing) effect.

Open No. 10-2008-5212 (Fiber composite material and method of manufacturing the same) is a method of heating a fiber wave including adhesive thermoplastic fibers to melt adhesive fibers, compressing the wave, However, this is also limited to the expectation of sound absorption (soundproofing) effect merely by coating solid adhesive fibers with adhesive thermoplastic fibers without mixing substances that professionally absorb sound effects.

Open No. 10-2008-40078 (a flooring material using a fabric made of a fiber fabric coated with a resin) is applied to a surface of a fast wallpaper using a nonwoven fabric or various kinds of fibers (a PE spun- It is formed by mixing the generated materials (tourmaline, nanosilver, zeolite) and the original external radiation material (elvan, germanium, vermiculite) with gelatin, applying pressure on the roller and reapplying PE spun-bond. There is a limitation in expecting a sound-absorbing effect because it is merely a mixture of far-infrared rays and an anion-releasing substance without mixing or applying a substance to obtain a sound-absorbing effect.

Open No. 10-2013-17732 (a sound absorbing sheet and its manufacturing method) is merely to adhere a film material to one surface of a nonwoven fabric, so that it is merely intended to block the air to obtain a waterproof effect.

Japanese Patent Registration No. 10-534294 (method for producing functional fibers that emit far-infrared rays and anions and uses thereof) is characterized in that a fabric that is made of a yarn having a fabric layer on its surface layer and a fabric layer coated with resin is used Since the outer surface of the fiber is coated with a resin, no sound absorption (soundproofing) effect can be expected at all.

No. 10-897319 (thermally-formable soundproof sheet) is formed by laminating a resin composition (PVC) on a sound-absorbing sheet, in which the sound introduced into the sound-absorbing sheet is blocked by the resin composition, The incoming sound collides with the resin composition and is reflected, and the sound absorption (soundproofing and sound insulation) effect can hardly be obtained in the room.

The present invention relates to a manufacturing apparatus for coating a sound-absorbing material on a plain yarn, a sound-absorbing material coated with a sound-absorbing agent coating yarn and a sound-absorbing material coated with a sound-absorbing material coated on the surface of the resilient material coated with the sound- To provide a sound absorbent article fabric.

The present invention relates to a manufacturing apparatus of a sound absorbing agent coating yarn in which a sound absorbing agent is filled inside a plain yarn and a sound absorbing agent is coated on the outside of the yarn, a sound absorbing agent coating yarn produced by the manufacturing apparatus of the sound absorbing agent coating yarn, It is an object of the present invention to provide a sound absorbing material coated zigzag fabric woven using a manufactured sound absorbing material coated yarn and a sound absorbing material coated paper produced by coating a sound absorbing material on the surface (one surface) of the sound absorbing material coated zigzag.

Another object of the present invention is to provide a sound absorbing agent coated yarn which is coated with a sound absorbing agent on the outside of a yarn and which can produce a sound absorbing agent coated yarn having various sound absorbing performances according to characteristics, It is desired to provide a sound absorbing material coated quartz with a sound absorbing function by using a sound absorbing agent coating yarn and to provide a sound absorbing material coated quartz with a variety of sound absorbing agent coating yarns, .

It is still another object of the present invention to provide a sound absorbent coated dunn paper which can maximize a sound absorbing effect by coating a sound absorbent on one surface of a sound absorbent coated dunn paper which is variously woven according to purposes and characteristics by various sound absorbent coating yarns have.

It is another object of the present invention to provide a sound absorbing agent fabric which can be used as a fabric of a sound absorbing material by coating a sound absorbing agent on one surface of a fabric woven using a general yarn, And to provide various types of sound absorbent fabrics by varying the thickness according to their characteristics.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects,
Sequentially passing the yarn through the adhesive coating unit, the sound absorbing material coating unit and the heating unit while maintaining a constant speed;
The adhesive coating apparatus includes: coating an outer surface of the yarn with an adhesive;
The sound-absorbing material coating unit may be configured to coat the outer surface of the adhesive-coated yarn with a predetermined thickness d;
Wherein the heating device is a device for manufacturing a sound absorbing coating material characterized in that the sound absorbing agent coated on the outer surface of the yarn is dried by hot air at a constant temperature by an adhesive.

Other and further objects,
Wherein the sound absorbing agent coating yarn is produced by a manufacturing apparatus of the sound absorbing agent coating yarn.

Still another and further objects of the present invention,
Wherein the sound absorbing agent coating yarn is woven using a sound absorbing agent coating yarn produced by the manufacturing apparatus of the sound absorbing agent coating yarn.

Still another and further objects of the present invention,
And a sound absorbing material coated on one side of the sound absorbing material coated zigzag fabric woven using the sound absorbing material coated yarn produced by the manufacturing device of the sound absorbing material coated yarn is coated with a sound absorbing material with a certain thickness (d2).

The present invention relates to a manufacturing apparatus for coating a sound-absorbing material on a plain yarn, a sound-absorbing material coated with a sound-absorbing agent coating yarn and a sound-absorbing material coated with a sound-absorbing material coated on the surface of the resilient material coated with the sound- To provide a sound absorbent fabric.

The present invention relates to a manufacturing apparatus of a sound absorbing agent coating yarn in which a sound absorbing agent is filled inside a plain yarn and a sound absorbing agent is coated on the outside of the yarn, a sound absorbing agent coating yarn produced by the manufacturing apparatus of the sound absorbing agent coating yarn, A sound absorbing agent coated zigzag fabric woven using a manufactured sound absorbing agent coated yarn, and a sound absorbing agent coated on the surface (one surface) of the sound absorbing agent coated zigzag can be provided.

In addition, the present invention can produce a sound-absorbent coating yarn having a sound-absorbing performance depending on its characteristics by producing a sound-absorbing agent-coated yarn by a manufacturing apparatus and a manufacturing method of a sound- It is possible to provide a sound absorbing material coated with a sound absorbing function by directly weaving the sound absorbing material coated with the sound absorbing material using the yarn, and to provide a sound absorbing material coated with a sound absorbing material which can be woven in various ways according to the purpose and characteristics.

In addition, the sound-absorbing material coated zigzag according to the present invention can maximize a sound absorption effect by coating a sound-absorbing material on one surface of a sound-absorbent material coated with various sound-absorbing agent coating yarns according to purposes and characteristics.

Further, since the sound absorbing material fabric sheet according to the present invention is coated with a sound absorbing material on one side of the surface of a woven fabric woven using plain yarn, almost all general fabrics can be used as a sound absorbent fabric, and a sound absorbing material Can provide various types of sound absorbing agent fabrics with different thicknesses depending on the purpose and characteristics of use.

1A and 1B are enlarged cross-sectional views showing different embodiments of a sound absorbent coating yarn according to the present invention.
FIG. 2 is a partially enlarged view of a woven state of a sound absorbing agent-coated zigzag fabric woven using a sound absorbent coated yarn according to the present invention illustrated in FIGS. 1A and 1B; FIG.
3 is a partially enlarged cross-sectional view showing a state in which a sound-absorbing agent is coated on one surface of a sound-absorbent-coated zigzag according to the present invention illustrated in FIG.
4A and 4B are enlarged partial cross-sectional views of a sound absorbing fabric fabric coated with a sound absorbing material on one side of the fabric according to the present invention.
FIG. 5 is a process diagram showing a manufacturing process of a sound absorbing material coated yarn in a manufacturing process of a sound absorbent fabric according to the present invention.
6 is a process diagram showing a manufacturing process of a sound absorbent fabric according to the present invention.
7a and 7b show a manufacturing process of another embodiment of the sound-absorbing agent coating yarn according to the present invention.
FIG. 8 is a graph showing a result of measuring a reverberation time according to a frequency change of a measurement room equipped with a sound absorbent fabric according to the present invention. FIG.
9 is a graph showing experimental results of a sound absorption coefficient according to a frequency change of a sound absorbent fabric according to the present invention.

These and other objects and features of the present invention will be more clearly understood from the following detailed description based on the accompanying drawings.

1 to 9 show a method for manufacturing a sound-absorbing agent-coated yarn 1 according to the present invention, a sound-absorbing agent-coated yarn 1 produced by the method, a sound-absorbing agent- A method of coating the sound absorbing material 3 on the coated paper 10 and the fabric 40 and a concrete realization example of the sound absorbing material fabric 30 produced by the method.

FIGS. 1A and 1B are enlarged cross-sectional views showing different embodiments of the sound-absorbing agent-coated yarn 1 according to the present invention. FIGS. 7A and 7B are views showing a process of manufacturing the sound- (200).

FIG. 2 is a partially enlarged view of a woven state of a sound absorbing agent coated zigzag 10 (10-1) woven using the sound absorbent coated yarn 1 according to the present invention illustrated in FIGS. 1A and 1B, FIG. 3 is a cross-sectional view of a sound absorbing material coated zigzag (10: 10-2) in which a sound absorbing material layer 20 is formed by coating a sound absorbing material 3 on one surface of a sound absorbing material coated zigzag material 10-1 according to the present invention illustrated in FIG. Fig.

4A and 4B are enlarged partial cross-sectional views of a sound absorbing material fabric 30 having a sound absorbing agent coating layer 20 formed by coating a sound absorbing material 21 on one side of a fabric 40. As shown in FIGS.

5 is a view (100-1) illustrating a manufacturing process of a sound absorbing material coated zigzag material showing a manufacturing process of a sound absorbing material coated zigzag material in a manufacturing process diagram (100) of a sound absorbing material fabric sheet according to the present invention, The manufacturing process of the fabric is (100-2).

FIG. 8 is a graph showing the results of measuring the reverberation time according to the frequency change of the measuring room equipped with the sound absorbing fabric 30 according to the present invention, and FIG. 9 is a graph showing the experimental results of the sound absorption coefficient according to the frequency change of the sound absorbing fabric according to the present invention Graph.

The sound absorbent coating yarn 1 according to the present invention illustrated in Figs. 1A and 1B is manufactured by the adsorbent coating apparatus 200 illustrated in Figs. 7A and 7B.

7A, the yarn 2 is sequentially passed through the adhesive coating unit 210, the sound absorbing material coating unit 220, and the heating unit 240, The sound absorbing material coated yarn 1 coated with the sound absorbing material 3 on the outer surface of the yarn 2 is produced.

The speed at which the yarn 2 passes through the adhesive coating unit 210, the sound absorbing material coating unit 220 and the heating unit 240 is maintained at 5 to 15 m / sec to adjust the thickness of the yarn 2, The thickness d at which the sound absorbing agent 3 is adhered is maintained at 0.01 to 0.5 mm to allow the thickness d to be adjusted So that the sound-absorbing material-coated yarn 1 can be manufactured.

The adhesive agent coating unit 210 fills the adhesive tank 211 with the adhesive 212 so that the yarn 2 is introduced into one side of the adhesive tank 211 and discharged to the other side of the adhesive tank 211, 212) was applied.

The sound absorbing material coating unit 220 is provided with a plurality of sound absorbing material injection nozzles 222 disposed inside a chamber 221 in which foreign substances are not allowed to flow from the outside to spray the sound absorbing material 3, The fine particles of the sound absorbing material 3 injected from the sound absorbing material injection nozzle 222 are adhered (deposited) to the adhesive 212 when the yarn 2 coated with the yarn 2 passes through the inside of the chamber 221.

The heating unit 240 includes one or more hot air heaters 242 installed inside the heating box 241 and is made of a yarn 2 adhered (vapor deposited) to the outer surface by an adhesive 212, And the hot air heater 242 is maintained at 50 to 100 ° C so that the sound absorbing material 3 adhered (deposited) is not burned sufficiently And dried.

The absorbent agent coating apparatus 200 illustrated in FIG. 7B may be configured such that the yarn 2 is sequentially passed through the adhesive deposition apparatus unit 230 and the heating apparatus unit 240 and the inside of the yarn 2 The sound absorbing material coated yarn 1 is filled with the sound absorbing agent 3 and is coated on the outer surface of the sound absorbing material 3.

The adhesive deposit unit 230 is formed by filling an adhesive sound absorbing material 232 in which the adhesive 212 and the sound absorbing material 3 are mixed in the inside of the sound absorbing material filling cylinder 231, The adhesive sound absorbing material 232 is filled in the yarn 2 and coated on the outer surface of the yarn 2 while the yarn 2 introduced from the side passes through the adhesive sound absorbing material 232.

The speed at which the yarn 2 passes sequentially through the adhesive deposition unit 230 and the heating unit 240 is maintained at 1 to 10 m / sec so that the thickness of the yarn 2 and the thickness of the sound- The thickness d at which the sound absorbing material 3 is adhered (deposited) is maintained at 0.01 to 0.5 mm to vary the thickness d, (1).

Fig. 5 is a schematic view showing a state in which the sound absorbing agent coating yarn 1 is produced using the absorbing agent coating apparatus 200 illustrated in Fig. 7A or Fig. 7B as shown in Fig. 1A or 1B, (100: 100-1) is a manufacturing process diagram of a sound absorbing material fabric 10, that is, a process of weaving a sound absorbing material coated dunnage 10-1.

A manufacturing process diagram 100 (100-1) of a sound absorbing material fabric sheet includes a sound absorbent manufacturing process 110 for manufacturing a sound absorbing material 3, a sound absorbing material yarn coating process 120 for coating the produced sound absorbing material 3 on a yarn, a sound absorbing material 3 And a sound absorbing agent coated zigzag stitching process 130 for weaving the sound absorbing material coated zigzag 10-1 using the coated sound absorbing agent coated yarn 1 as shown in FIG.

Examples of the sound absorbing agent 3 produced by the sound absorbing agent manufacturing process 110 include 'noise absorbing powder paint composition' disclosed in Korean Patent No. 10-0963656, and the 'noise absorbing powder paint composition' The best (best) sound absorbing effect can be obtained.

The sound absorbing agent yarn coating step 120 which performs the drying step 125 in which the manufactured sound absorbing agent 3 is coated and dried on the yarn 2 is carried out by the sound absorbing agent coating apparatus 200 illustrated in FIGS. It is possible to manufacture the sound absorbing material coated yarn 1 having various thicknesses d of the sound absorbing agent 3.

The sound absorbing agent coated woven fabric weaving process 130 for weaving the sound absorbing agent coated woven fabric 10-1 by using the sound absorbing agent coated yarn 1 coated with the sound absorbing agent 3 can be carried out by winding the sound absorbing agent coated yarn 1 in the warp and weft (Not specifically shown) using a conventional weaving machine (not shown), and weave the sound absorbing agent-coated bicomponent article 10-1 as illustrated in Fig. 2 by a loom (not specifically shown).

As described above, the process of weaving the sound-absorbing agent-coated yarn 10-1 by using the sound-absorbing agent-coated yarn 1 with a warp and weft of a weaving machine (not specifically shown) is used to make the same The detailed description of the weaving process is omitted.

5 is a manufacturing process diagram 100 (100-1) of a sound absorbent fabric illustrated in FIG. 5, in which a sound absorbing material 3 is coated on one surface of a sound absorbing material coated zigzag 10-1 woven using a sound absorbing material coated yarn 1 The sound absorbing agent coating step 140 and the sound absorbing agent n-order coating step 140-n for performing the drying step 150 for drying the coated sound absorbing agent 3 are performed one or more times to obtain a sound absorbing agent coating (10: 10-2). ≪ / RTI >

As shown in FIG. 3, the sound-absorbing agent-coated waste paper 10: 10-2 produced by coating the sound-absorbing agent 3 on one surface of the sound-absorbing agent-coated paper 10-1 has a structure in which the sound- The thickness d2 of the sound absorbing agent coating layer 20 is preferably maintained within a range of 0.01 to 0.5 mm because the sound absorbing agent coating layer 20 penetrates the inside of the sound absorbing agent coating layer 10-1 and is deposited on the outer surface to form the sound absorbing agent coating layer 20. [ (10: 10-2) by changing the thickness d2 according to the thickness and type of the sound absorbing material 10-1.

The sound absorbing material coated paper 10 (10: 2) produced in this way can further improve the sound absorption effect.

The sound absorbent fabric 30 illustrated in Figs. 4A and 4B is manufactured by a manufacturing process diagram 100: 100-2 of the sound absorbent fabric illustrated in Fig.

6 is a manufacturing process diagram 100 (100-2) of a sound absorbent fabric illustrated in Fig. 6, which includes a sound absorbent manufacturing process 110 for manufacturing a sound absorbing material 3, a sound absorbing material 1 for coating the sound absorbing material 3 produced in the fabric 40 The drying step 170 consisting of the tea coating step 170-1 to the sound absorbing agent n-order coating step 170-n and the drying step 175 (180) is carried out one or more times to form the sound absorbing agent fabric 30 (190).

 The sound-absorbing agent manufacturing process 110 for manufacturing the sound-absorbing agent 3 may be a 'composition of a noise-absorbing powder paint' known in the domestic patent No. 10-0963656 as described above in the embodiment of FIG. 5, The best sound absorption effect can be obtained by using the composition of the noise sound-absorbing powder paint.

The drying step 170 comprising the sound-absorbing agent primary coating step 170-1 to the n-th sound-absorbing agent coating step 170-n and the drying step 175 (180) is carried out one or more times, The sound absorbing agent coating layer 20 is filled with the sound absorbing agent 21 to fill the inside of the fabric 40 and is deposited on the outer surface to maintain the thickness d3. The thickness d3 of the fabric 40 can be maintained at 0.01 to 0.5 mm according to the characteristics (type, thickness, etc.) of the fabric 40, thereby manufacturing various fabric sheets 30 of sound absorbing agent.

These and other objects and features of the present invention will be more clearly understood from the following examples and experimental results.

(Example)

A process of applying a sound absorbing agent 21 which is a composition of a noise absorbing powder paint known in domestic Patent No. 10-0963656 to the surface (one side) of the fabric 40 and drying it with hot air maintained at 75 캜 is referred to as 2 The noise absorbing agent fabric 21 penetrates into the fabric 40 and maintains a thickness d3 of 0.3 mm on the outer surface of the fabric 40. That is, a soundproofing curtain (a noise curtain) .

(Experiment result)

The soundproofing curtain (aka noise curtain) obtained by the above embodiment was subjected to a sound absorption test for quality confirmation by a research institute of Korea Shipbuilding & Materials Research Institute, and the test method was conducted by KS F 2805: 2004, ASTM C 423: 2009a .

The test environment was maintained at a temperature of 13.8 ± 1.0 ° C and a humidity of 39 ± 5% RH.

The test standard was ASTM C 423: 2009a (Standard Test Method for Sound Absorption and Sound Absorption Coefficient by Reverberation Room Method) and KS F 2805: 2004 Reverberation Method Sound Absorption Rate Measurement Method (see Table 1 and Fig. 8).

Test conditions are as follows: sound source: 1/3 octave band white noise, measurement frequency: 100 HZ to 5000 HZ (1/3 octave band center frequency), measurement point: 6 microphone positions and 2 sound source positions, 3 times were repeatedly measured.

Laboratory and Sample: A sample (sound absorbent fabric 30) having an area of 12.0 m 2 was installed in a test room having a volume of 220.0 m 3 and a surface area of 214.3 m 2.

The test procedure,

end. Microphones and sound sources were installed according to the test method of KS F 2805: 2004, ASTM C 423: 2009a,

I. We used the Interrupted Noise Method to measure the reverberation time in the binje bay.

All. Reverberation time was measured after the sample was installed on the mounting table.

All. Using the measured two reverberation times, the scratch rate was calculated according to the following formula.

(expression)

αs = {55.5V (1 / c 2 T 2 - 1 / c 1 T 1) -4V (m 2 -m 1)} 1 / S

From here,

(m 3), V: volume of empty reverberation room (㎡)

S: area covered with test piece (㎡),

c ₁ c ₂ : Sound velocity (m / s) at temperature t1, t2, c = 331 + 0.6t, t:

T1: reverberation time (s) in empty reverberation room,

T2: Reverberation time (s) in the reverberation chamber after the test piece is installed,

m ₁ m ₂ is the power damping coefficient (m ^-1 ) calculated in accordance with ISO 9613-1 using the climatic conditions in the boiler room with the empty reverberatory room and the sample during the measurement and can be calculated from the damping coefficient α The formula of ISO 9613-1

       [m =? / 10log (e)].

hemp. The Noise Reduction Coefficient was calculated by arithmetically averaging the sound absorption rates at 250HZ, 500HZ, 1000HZ and 2000HZ according to ASTM C 423: 2009a.

(Table 1) Reverberation time measurement result

Frequency (Hz)
T1 (s)
T2 (s)
Frequency (Hz)
T1 (s)
T2 (s)
100
13.75
11.65
800
9.28
4.64
125
14.84
10.24
1000
7.97
4.08
160
13.86
9.90
1250
6.51
3.53
200
13.94
8.66
1600
5.48
3.08
250
11.83
6.25
2000
4.41
2.63
315
10.12
5.11
2500
3.45
2.26
400
9.86
5.12
3150
2.52
1.80
500
9.56
5.21
4000
1.89
1.54
630
10.02
5.10
5000
1.44
1.25

T1: Reverberation time of empty room

T2: Reverberation time of the seal after sample installation

As can be seen from Table 1 and FIG. 8 as a graph, it can be confirmed that the reverberation time (T2) of the chamber after the sample installation is significantly lower than the reverberation time (T1) of the empty chamber.

(Table 2) Test result of sound insulation curtain (a noise curtain) according to frequency

Frequency (Hz)
Absorption coefficient (? S)
Frequency (Hz)
Absorption coefficient (? S)
100
0.04
800
0.32
125
0.09
1000
0.36
160
0.09
1250
0.39
200
0.13
1600
0.44
250
0.23
2000
0.49
315
0.29
2500
0.49
400
0.28
3150
0.44
500
0.26
4000
0.43
630
0.29
5000
0.42

NRC: 0.35

As a result of the test, NRC was 0.35 , and the noise absorption rate was high. Especially, as the frequency was higher, the noise absorption coefficient (? S) was higher.

Thus, the present invention can provide a sound-absorbent coating yarn directly, thereby making it possible to variously produce a sound-absorbing material coated yarn, and the sound-absorbing material coated yarn using the sound-absorbing material coated yarn can maximize a sound absorption effect, The fabric of the sound-absorbing agent can be variously manufactured by changing the thickness of the sound-absorbing agent according to the purpose and characteristics of the use.

According to the present invention, since the sound absorption rate of the noise absorbing fabric and the sound absorbing agent fabric according to the present invention is high, it can be effectively utilized for sound absorption, soundproofing, sound insulation and the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

1: Sound absorbing coating yarn 2: Yarn
3. 21: Aspiration agent 10: Sound absorption agent coating
20: sound absorbing agent coating layer 30: sound absorbing agent fabric
40: Fabric 100: Production process of sound absorbent fabric
110: sound absorbing material manufacturing process 120: sound absorbing material yarn coating process
130: Sound absorbent coating Resignation Weaving process 140. 170: Sound absorption coating process
150: Drying process 160: Sound absorption coating:
190: Sound absorbing agent fabric finished process 200: Sound absorbing agent coating process
210: adhesive coating unit 220: sound absorbing coating unit
230: Sound absorbing agent settling unit 240: Heating unit

Claims (14)

Sequentially passing the yarn through the adhesive coating unit, the sound absorbing material coating unit and the heating unit while maintaining a constant speed;
The adhesive coating apparatus includes: coating an outer surface of the yarn with an adhesive;
The sound-absorbing material coating unit may be configured to coat the outer surface of the adhesive-coated yarn with a predetermined thickness d;
Wherein the heating device is configured to dry the sound absorbing agent coated on the outer surface of the yarn with hot air at a predetermined temperature by means of an adhesive. The yarn is sequentially passed through the adhesive deposit unit and the heating unit at a constant speed;
The adhesive deposit unit is filled with an adhesive sound absorbing material mixed with an adhesive and a sound absorbing material inside the sound absorbing material filling barrel, and the adhesive sound absorbing material is filled inside the yarn flowing into one side of the sound absorbing material filling barrel and discharged to the other side, );
Wherein the heating unit is configured to heat the adhesive sound absorbing material filled and coated on the inner and outer surfaces of the yarn with hot air at a predetermined temperature. The apparatus for producing a sound absorbing coating material according to claim 1, wherein the speed of the yarn conveying the adhesive coating unit, the sound absorbing material coating unit, and the heating unit is 5 to 15 m / sec. The apparatus for producing a sound-absorbing agent coating yarn according to claim 2, wherein the speed of the yarn passing through the adhesive deposit unit and the heating unit is 1 to 10 m / sec. delete A sound-absorbing material coating yarn characterized in that a sound-absorbing agent is coated on the outer surface of a yarn with a certain thickness (d) by the apparatus for manufacturing a sound-absorbing agent coating yarn according to claim 1 or 2. The absorbent article according to claim 6, wherein the thickness (d) of the sound absorbing agent coated on the outer surface of the yarn is:
0.01 to 0.5 mm. delete A sound absorbing material coated yarn according to claim 1 or 2, wherein the sound absorbing agent coated yarn produced by the apparatus for producing a sound absorbing agent coated yarn is woven using either a weft yarn or a warp yarn or a warp yarn or a warp yarn. A sound absorbing agent coating process is performed at least once on one side of a sound absorbing material coated yarn which is woven using either a weft yarn or a warp yarn produced by the manufacturing apparatus of the sound absorbing agent coating yarn of claim 1 or a weft yarn or a warp yarn Wherein the sound absorbing agent is coated on one side of the sound-absorbing agent-coated paper with a predetermined thickness (d2). 11. The absorbent article of claim 10, wherein the thickness (d2) of the sound absorbing material coated on one side of the sound absorbing material coated sheet is:
0.01 to 0.5 mm. ≪ / RTI > delete delete delete

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