JP2006329746A - Measuring instrument and measuring method for hygroscopic and exothermic material based on adsorption heat and thermal onductivity - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a measuring instrument and a measuring method for hygroscopic and exothermic fiber correlating with actual wear by simultaneously measuring adsorption heat and thermal conductivity in the field of clothing. <P>SOLUTION: This measuring instrument comprises respective parts (A) to (D) shown below. (A) A precise rapid thermophysical property measuring part comprises a precise rapid thermophysical property measuring instrument and a heat source plate. (B) A measuring part comprises a fixed temperature table maintaining a fixed temperature and a temperature measuring sensor. (C) A water supply part comprises a heater, a pump, and a pipe for water. (D) An air supply part comprises a temperature/humidity adjusting air generator, a flow adjustment cock, and a pipe for air. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a measuring apparatus and a measuring method capable of simultaneously measuring both heat of adsorption and heat conductivity in a hygroscopic exothermic material.

Conventionally, a fiber structure focused on moisture absorption and heat generation and clothing using the same (general clothing, winter clothing, sports clothing, low temperature warehouse uniform, etc.) have been reported.
Regarding the hygroscopic exothermic property, it is known that the heat of adsorption is proportional to the hygroscopic property. Cellulosic fibers such as cotton tend to have higher hygroscopicity and higher heat of adsorption than chemical fibers such as polyester. Are known. Therefore, when the presence or absence of hygroscopic exothermicity is determined only by the evaluation of adsorption heat, cellulose-based fibers such as cotton may be included in the hygroscopic exothermic fiber, but the adsorption heat evaluation is different from the actual feeling when worn. There was a case. As a conventional method for evaluating hygroscopic exothermic fibers, for example, Patent Document 1 can be cited.

Although clothes using cellulosic fibers such as cotton generate heat of adsorption, moisture absorbed and absorbed between the fibers and between the fibers increases the thermal conductivity and does not feel warm. Therefore, in the outdoor world such as mountain climbing, clothes using cellulosic fibers such as cotton are not preferred because the body temperature is lost.
In addition, clothes using hydrophobic fibers such as polyester fibers and acrylic fibers tend to release moisture through the fibers, so the thermal conductivity is low, but there is almost no heat of adsorption, and moisture generated from the human body. Because it is easily taken away as heat of vaporization, it feels chilly. Therefore, problems remain for mountain climbing and outdoor use.
Non-Patent Document 1 describes that a moisture-absorbing and exothermic fiber needs to have both moisture-absorbing and exothermic properties and heat retention (thermal conductivity, radiant heat, convection in clothes), and cellulose-based materials such as cotton. It is noted that fiber is not suitable for winter clothing.
Until now, there has been no method for evaluating hygroscopic exothermic fibers correlated with actual wearing, and quantitative measurement of the “warmth” of winter clothing has not been made.
JP 2003-337111 A 3rd Edition Textile Handbook 455-456 Editor: Japan Society of Textile Science Publisher: Seishiro Murata Publisher: Maruzen Co., Ltd.

  Although the measurement method of Patent Document 1 can measure the heat of adsorption, no consideration is given to factors other than the heat of adsorption necessary for the hygroscopic exothermic fiber (thermal conductivity, radiant heat, convection in clothes). For example, undershirts and T-shirts touch the skin directly, so the influence of radiant heat is small. In addition, since the silhouette conforms to the body shape, the influence on the convection in the clothes is small. For this reason, we focused on the heat of adsorption and thermal conductivity, which are large factors that affect the warmth of the human body. In the field of clothing technology, the present invention intends to provide a method and an apparatus for evaluating a hygroscopic exothermic fiber that correlates with actual wearing by simultaneously measuring adsorption heat and thermal conductivity.

Therefore, the measuring device and the measuring method using the same according to the present invention are characterized in that the moisture-absorbing exothermic material is evaluated using the temperature rise due to the heat of adsorption and the apparent thermal conductivity.
The measuring device consists of the following parts: (A) precise rapid thermophysical property measurement unit, (B) measurement unit, (C) water supply unit, and (D) air supply unit. It is the measuring device which made it possible to measure the thermal conductivity.
(A) The precise rapid thermophysical property measuring unit is composed of a precise rapid thermophysical property measuring device and a heat source plate.
(B) The measurement unit is composed of a temperature table and a temperature measurement sensor for maintaining a constant temperature, and the temperature table is composed of an upper surface part, a middle part and a lower part, and the central region of the constant temperature table is from the upper surface part to the middle of the lower part. A recess that reaches, a temperature measurement sensor is provided on the bottom of the recess,
A water supply port and a drain port for circulating the constant temperature water supplied from the water supply unit are provided in the middle of the constant temperature table,
An air supply port is provided at the lower part of the constant temperature table to deliver the temperature-controlled and humidity-controlled air supplied from the air supply unit to the recess.
(C) The water supply unit is composed of a heater, a pump, and a water pipe, and the heater and the pump are connected to a water supply port and a drain port by the water pipe.
(D) The air supply unit includes a temperature / humidity adjusting air generating device, a flow rate adjusting cock, and an air pipe. The temperature / humidity adjusting air generating device and the air supply port are connected by the air pipe, and the air pipe. Provide a flow control cock in
As a measuring method, by using the above-described measuring apparatus and measuring under the conditions and order shown in the following (1) to (6), it is possible to simultaneously measure the rising temperature due to the heat of adsorption and the apparent thermal conductivity. This is a method for measuring a hygroscopic exothermic material.
(1) Measurement is performed in an environment where the temperature and humidity are adjusted to 20 ° C. and 65%.
(2) The temperature of the heat source plate is 25 to 45 ° C., and is left for about 1 hour or more until it becomes stable.
(3) Circulating 20 ° C. water heated by a heater in the middle of the temperature-controlled table, and keeping the temperature in the temperature-controlled table at 20 ° C.
(4) Air having a temperature of 20 to 35 ° C. and a humidity of 40 to 100% is poured from the air supply unit into the recess so as to have a flow rate of 1 to 15 mm ³ / sec.
(5) Fix the dough of the temperature-controlled sample for 2 hours or more in an environment of 20 ° C. and 65% on a constant temperature table. The fabric is hung so that the temperature measurement sensor touches the back of the sample fabric, and the fabric is sandwiched between the heat source plate and the top surface of the constant temperature table.
(6) The thermal conductivity of the dough is measured at the portion sandwiched between the upper surface of the constant temperature table and the heat source plate, and the adsorption heat of the dough is measured at the portion touching the temperature measurement sensor.

  According to the measuring apparatus and the measuring method using the same described in the present invention, it is possible to simultaneously measure the heat of adsorption and the thermal conductivity of the hygroscopic exothermic fiber.

Embodiments of the present invention will be described. 1 is a schematic view showing a measuring apparatus according to the present invention, FIG. 2 (a) is a cross-sectional view taken along line XX in FIG. 1, FIG. 2 (b) is a cross-sectional view taken along line YY in FIG. (C) is a sectional view taken along the line ZZ in FIG. 1, and FIG. 3 is a view showing a state in which a sample is set in FIG. 2 (c).
As shown in FIG. 1, the measuring device 1 of the present invention includes a precise rapid thermophysical property measuring unit 2, a measuring unit 3, a water supply unit 4, and an air supply unit 5.

  The precise rapid thermophysical property measuring unit 2 includes a precise rapid thermophysical property measuring device 2a and a heat source plate 2b. The heat source plate 2b is composed of a metal plate that generates heat, a heater, and a temperature sensor. The metal plate is heated by the heater, and the precise rapid thermophysical property measuring device 2a controls the temperature of the metal plate by the temperature sensor. A guard heater is attached around the metal plate (a portion other than the contact surface of the metal plate that contacts the sample). The guard heater is for reducing the temperature change of the heat source plate due to the environmental temperature, and is set to a temperature slightly higher than the heat source plate temperature.

  The precise rapid thermophysical property measuring apparatus 2a can measure the work amount by setting the temperature of the metal plate and the guard heater and releasing the heat from the heat source plate. As the precise rapid thermophysical property measuring apparatus 2a, KES-F7 (Thermo Lab II type) manufactured by Kato Tech Co., Ltd. can be used, and BT-Box is used as the heat source plate 2b.

  The measurement unit 3 includes a table that maintains a constant temperature (hereinafter, a constant temperature table 3a) and a temperature measurement sensor 3b. The constant temperature table 3a includes an upper surface portion 3aa, a middle portion 3ab, and a lower portion 3ac. The upper surface portion 3aa is made of a copper plate that is easy to conduct heat and relatively easily available. Arbitrary materials can be used for the portions other than the upper surface portion 3aa (the middle portion 3ab and the lower portion 3ac). For example, a metal such as iron can be used. A concave portion 3c extending from the upper surface portion 3aa to the middle of the lower portion 3ac is provided in the central region of the constant temperature table 3a.

  A water supply port 3d and a water discharge port 3e are provided in the middle part 3ab of the constant temperature table, and constant temperature water supplied from a water supply part 4 described later is circulated in the middle part 3ab (a part excluding the recessed part 3c). It is assumed that the heat capacity supplied to the constant temperature base 3ab by circulating constant temperature water is infinite.

  An air supply port 3f and a temperature measurement sensor 3b are provided in the lower part 3ac of the constant temperature table 3a. Air that has been temperature-controlled and humidity-controlled by an air supply unit 5 described later is supplied to the recess 3c through the air supply port 3f. The temperature measurement sensor 3b is for measuring the temperature rise due to the heat of adsorption of the sample, and is provided on the bottom surface of the recess 3c.

  The water supply unit 4 includes a heater 4a, a pump 4b, and a water pipe 4c. The temperature of the water supplied to the constant temperature base 3ab is kept constant by the heater 4a, is sent out by the pump 4b, and circulates in the constant temperature base. The heater 4a and the pump 4b are connected to the water supply port 3d and the drainage port 3e by a water pipe 4c.

  The air supply unit 5 includes a temperature / humidity adjusting air generator 5a, a flow rate adjusting cock 5b, and an air pipe 5c. The temperature / humidity adjusting air generator 5a can generate air of any temperature and humidity by changing the mixing ratio of humid air having a humidity of 100% and dry air having a humidity of 0% at a set temperature. As a method for generating moist air, there is a method in which air is sent to water at a set temperature and bubbled in a container at a set temperature, and the bubbled air is collected. As a method of generating dry air, there is a method of obtaining dry air by passing air of a set temperature through a hygroscopic agent such as silica gel.

  The air whose temperature is controlled by the temperature / humidity adjusting air generator 5a flows through the air pipe 5c into the recess 3c of the constant temperature base lower part 3ac. The flow rate can be arbitrarily adjusted by the flow rate adjusting cock 5b attached to the air pipe 5c.

The measuring device 1 configured as described above simultaneously measures the heat of adsorption and thermal conductivity of the sample.
(Preparation of measuring device)
The test is performed in an environment where the temperature and humidity are adjusted to 20 ° C. and 65%. Turn on the precision rapid thermophysical property measuring device 2a, set the temperature of the metal plate in the heat source plate to 25-45 ° C and the temperature of the guard plate 0.3 ° C higher than the heat source plate, and leave it for about 1 hour or more until it stabilizes To do.

The pump 4b of the water supply unit 4 is operated to circulate the 20 ° C. water heated by the heater 4a in the constant temperature base 3ab, and keep the temperature of the constant temperature base 3ab at 20 ° C.
The temperature / humidity adjusting air generator 5a of the air supply unit 5 is turned on, the temperature of the flowing air is set to 20 to 35 ° C., the humidity is set to 40 to 100%, and the flow rate of the air supplied to the constant temperature base lower part 3ac is 1. The flow rate adjustment cock 5b is adjusted to be ˜15 mm ³ / sec.
The temperature measurement sensor 3b of the measurement unit is turned on.

(Sample installation)
Place the dough of the sample 7 placed in an environment of 20 ° C. and 65% for 2 hours or more and adjusting the temperature and humidity on the constant temperature table 3a. At this time, the sample 7 is placed loosely in the recess 3c, and the sample 7 is hung so that the temperature measuring sensor 3b touches the back surface of the sample fabric, and the sample 7 is placed between the heat source plate 2b and the top surface 3aa of the temperature table. Sandwich. The thermal conductivity of the sample is measured at the portion sandwiched between the constant temperature table upper surface portion 3aa and the heat source plate 2b, and the heat of adsorption of the dough is measured at the portion touching the temperature measurement sensor 3b.

(Thermal conductivity measurement)
Thermal conductivity measurement methods include the flat plate comparison method, the flat plate direct method, the heat flow meter method, and the unsteady hot wire method, but the flat plate method is applied to clothing made of knitted fabric, woven fabric, non-woven fabric, etc. A stationary method is generally used in which the upper and lower flat plates of the placed cloth are set to the high temperature side (heat source) and the low temperature side, respectively, and the amount of heat necessary to keep the temperature constant is measured. In the present invention, when a sample is sandwiched between a heat source plate and a constant temperature table, measurement by a steady method is performed using a portion where the sample is in contact with the constant temperature table. A sample is set on a copper plate, and the amount of heat W absorbed by a constant temperature table when the heat source plate is placed is measured. The amount of heat W is measured when the amount of absorption into the constant temperature table when the heat source plate is placed becomes constant. Further, after measuring the thickness D corresponding to the pressure when the heat source plate is placed using a compression elasticity tester, the apparent thermal conductivity k (W / mK) is expressed by the following equation (1). calculate.
k = (W * D) / (A * ΔT0) (Formula 1)
W: Calorie (W)
D: Fabric thickness (m)
A: Heat source plate area (m ² )
ΔT0: Difference between hot plate temperature and test environment temperature (K)

(Adsorption heat measurement)
As the adsorption heat measurement method, temperature-controlled air is flowed from the air supply port 3f, and the temperature change of the sample when the sample absorbs moisture and generates heat is measured by the temperature measurement sensor 3b. The temperature history of the back surface of the sample is recorded from before the flow rate adjustment cock 5b is opened until the amount of heat W absorbed by the constant temperature table becomes constant. The difference between the maximum temperature of the back of the sample under test and the temperature of the back of the sample before opening the flow control cock is defined as the maximum rise temperature ΔT.
The warmth of the dough is judged from the thermal conductivity and the maximum rising temperature.

(Measurement standard)
As a result of intensive studies conducted by the present inventors in a winter environment (under a low temperature environment) in which a fibrous structure absorbs moisture (perspires) and has conducted an extensive study, the maximum rise temperature ΔT in the above measurement is In the case of 1.5 degreeC or more, the warmth which was excellent at the time of wear can be obtained. However, when the maximum rise temperature ΔT is less than 1.5 ° C., it is not possible to obtain excellent warmth when worn.

  As a result of intensive studies conducted by the present inventors in the winter environment, in the above measurement, when the apparent thermal conductivity k is 0.053 (W / mK) or less, it feels cool and cool when touched during wearing. There is no. However, when the apparent thermal conductivity k is larger than 0.053 (W / mK), it feels cold and cool and uncomfortable when touched during wearing.

  A fabric satisfying the above two conditions or a garment using at least a part of such a fabric can feel warm even in actual wearing. These fabrics or clothes are suitable for cold sportswear, underwear (inner), T-shirts and the like.

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples. In the description of the following examples, the same parts as those in the above embodiment are omitted. The description will be made with reference to FIGS. 1 to 3 as in the embodiment.
KES-F7 (Thermo Lab II type) manufactured by Kato Tech Co., Ltd. is used as the precise rapid thermophysical property measuring apparatus 2a, and BT-Box connected to KES-F7 is used as the heat source plate 2b. The size of the BT-Box in the vertical and horizontal directions is a size that can just cover the upper surface of the constant temperature table 3a. Next, the thermostat 3a will be described below. The appearance is vertical (M1) 80 mm × horizontal (L1) 80 mm × height (N1) 60 mm, and the upper surface portion 3aa is formed of a copper plate having a thickness (N2) of 2 mm. The middle part 3ab and the lower part 3ac are made of iron. The height (N3) of the middle part 3ab is 18 mm, and the height (N4) of the lower part 3ac is 40 mm. A concave portion 3c extending from the upper surface portion 3aa to the middle of the lower portion 3ac is provided in the central region of the constant temperature table 3a. The recess 3c is 50 mm long (M2) × 10 mm wide (L2), and is arranged in the central region so as to be symmetrical in the vertical and horizontal directions when viewed from the upper surface side. In the height direction, the distance (N5) from the upper surface is 40 mm.

  The water supply port 3d and the drainage port 3e provided in the middle part 3ab have an inner diameter of 5 mm, and the water flowing from the water supply port 3d circulates in the middle part in a U-shape and is discharged from the drainage port 3e. The air supply port 3f provided in the lower part 3ac has an inner diameter of 10 mm.

  The test is performed in an environment in which the temperature and humidity are adjusted to 20 ° C. and 65%, and the sample is left to stand for at least 2 hours to adjust the temperature and humidity. Turn on the power of KES-F7 (Thermo Lab II), set the temperature of BT-Box to 35 ° C and the temperature of the guard plate to 35.3 ° C, and leave it for about 1 hour until it stabilizes.

  The pump of the water supply unit 4 is operated, and 20 ° C. water heated by the heater 4a is circulated in the constant temperature base middle part 3ab. The temperature / humidity adjusting air generator 5a is turned on, and the temperature of the flowing air is set to 32 ° C. and the humidity is set to 70%. Turn on the temperature sensor.

  The sample is 45 mm long and 220 mm wide, and is placed on the thermostat 3 a so that the back surface of the sample 7 faces down. After the sample 7 is hung in the recess 3c so that the temperature measurement sensor 3b touches the back surface of the cloth, the heat source plate 2b is placed on the constant temperature table upper surface portion 3aa, and the sample 7 is sandwiched between the heat source plate 2b and the constant temperature table upper surface portion 3aa.

Air adjusted to a temperature of 32 ° C. and a humidity of 70% by the temperature / humidity adjusting air generator 5a is supplied to the recess from the air supply port. The flow rate is adjusted by the flow rate adjusting cock 5b so that the flow rate becomes 6.2 mm ³ / sec. By setting it as the said conditions, the temperature / humidity state of the space in clothes at the time of underwear wearing can be reproduced.

Record the value when the amount of heat W absorbed by the constant temperature table 3a when the heat source plate 2b is placed becomes constant. From the value, the apparent thermal conductivity k (W / mK) of the sample is calculated using Equation 1 above.
Before the air is supplied from the air supply unit 5 and until the amount of heat W absorbed by the constant temperature table 3a becomes constant, the temperature history of the back surface of the sample is measured, and the maximum rise temperature ΔT is obtained.
The measuring device of the present invention can simultaneously measure both the apparent thermal conductivity and the maximum rising temperature (heat of adsorption).
The warmth of the dough is judged from this thermal conductivity and the maximum rising temperature ΔT. When the apparent thermal conductivity k is 0.053 (W / mK) or less, it does not feel cold and cool when touched at the time of wearing, and when the maximum rising temperature ΔT is 1.5 ° C. or more, it is excellent at the time of wearing. You can get warmth.

In order to check the consistency between the value obtained by the measuring device of the present invention and the actual sensory function, the thermal conductivity and moisture absorption exothermic property were measured by the measuring device and the sensory test.
(Thermal conductivity sensory test)
In a 15 ° C 50% RH environment that assumes a winter environment, 10 subjects (breakdown, 5 men, 5 women) who are 24 to 50 years old should wear a sample and cool Judgment was made, and the evaluation was made in the following four stages (full score of 4 points).
4 points: Extremely cold and cool.
3 points: Cold and not cool.
2 points: Cold and cool.
1 point: Extremely cool and cool.

(Hygroscopic exothermic sensory test)
Using a treadmill and walking at a speed of 5 km / h for 20 minutes, the warmth (hygroscopic exothermic property) was evaluated in four steps (full score of 4).
4 points: Extremely warm.
3 points: Warm.
2 points: Not warm.
1 point: Not very warm.

  In the sample for measurement, since it is easy to evaluate the difference in physical properties between the hygroscopic exothermic evaluation and the thermal conductivity evaluation, a means of blending a short acrylic polyester with a crosslinked acrylic fiber was used. (The standard inch of the knitted fabric is 1 inch = 2.54 cm.)

(Sample 1)
40% double yarn spun yarn made of 30% short fiber polyester (2.2 dtex-38 mm) / cross-linked acrylic (Toyobo Co., Ltd. Moiscare (registered trademark), 2.2 dtex-44 mm) 30% was prepared, and the rib structure (32 inch 24 gauge) knitting was carried out. Furthermore, the fiber structure was created after normal relaxation refining, dyeing and drying. (Weight = 200 g / m ² )

(Sample 2)
A spun yarn of 40 count double yarn consisting of 85% by weight of short fiber polyester (2.2 dtex-38 mm) / 15% by weight of cross-linked acrylic (Toyobo Co., Ltd., Moiscare (registered trademark), 2.2 dtex-44 mm), Ribbing (32 inch, 24 gauge) was knitted. Furthermore, the fiber structure was created after normal relaxation refining, dyeing and drying. (Weight = 210 g / m ² )

(Sample 3)
A spun yarn of 40 count double yarn comprising 90% by weight of short fiber polyester (2.2 dtex-38 mm) / cross-linked acrylic (Toyobo Co., Ltd. Moiscare (registered trademark), 2.2 dtex-44 mm) 10% by weight was prepared. Ribbing (32 inch, 24 gauge) was knitted. Furthermore, the fiber structure was created after normal relaxation refining, dyeing and drying. (Weight = 200 g / m ² )

(Sample 4)
A spun yarn of 40 count double yarn comprising 92% by weight of short fiber polyester (2.2 dtex-38 mm) / cross-linked acrylic (Toyobo Co., Ltd., Moiscare (registered trademark), 2.2 dtex-44 mm) 8% by weight was prepared. Ribbing (32 inch, 24 gauge) was knitted. Furthermore, the fiber structure was created after normal relaxation refining, dyeing and drying. (Weight = 200 g / m ² )

(Sample 5)
A spun yarn of 40th single yarn made of 100% cotton was prepared, and a rib structure (14 inches 12 gauge) was knitted. Furthermore, the fiber structure was created after normal relaxation refining, dyeing and drying. (Weight = 180 g / m ² )

(Sample 6)
A spun yarn of 40th single yarn made of 100% short fiber polyester (2.2 dtex-38 mm) was prepared, and a rib structure (14 inches, 12 gauge) was knitted. Furthermore, the fiber structure was created after normal relaxation refining, dyeing and drying. (Weight = 180 g / m ² )

  Table 1 shows the measurement results of the moisture absorption exothermic property (maximum temperature rise), the thermal conductivity measurement results, and the results of the respective sensory tests (total score of 10 subjects = 40 points).

  ADVANTAGE OF THE INVENTION According to this invention, adsorption | suction heat and thermal conductivity can be measured simultaneously, the cloth | dough or clothing which can obtain the outstanding wearing feeling in winter environment can be discriminate | determined, and it can contribute to the field | area of winter clothing.

FIG. 1 is a schematic view showing an apparatus according to the present invention. 2A is a sectional view taken along line XX in FIG. 1, FIG. 2B is a sectional view taken along line YY in FIG. 1, and FIG. 2C is a sectional view taken along line ZZ in FIG. It is. FIG. 3 is a diagram showing a state where a sample is set in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Measuring device 2 Precision rapid thermophysical property measuring unit 2a Precision rapid thermophysical property measuring device 2b Heat source plate 3 Measuring unit 3a Constant temperature table 3aa Top surface part 3ab Middle part 3ac Lower part 3b Temperature measuring sensor 3c Concave part 3d Water supply port 3e Drain port 3f Air supply port 4 Water supply unit 4a Heater 4b Pump 4c Pipe for water 5 Air supply unit 5a Temperature / humidity adjustment air generator 5b Flow control cock 5c Air pipe 7 Sample

Claims (4)

  A measuring apparatus characterized by evaluating a moisture-absorbing exothermic material using an increase in temperature due to heat of adsorption and apparent thermal conductivity.   A measurement method characterized by evaluating a moisture-absorbing exothermic material using an increase in temperature due to heat of adsorption and apparent thermal conductivity. It consists of the following parts: (A) precise rapid thermophysical property measurement unit, (B) measurement unit, (C) water supply unit, (D) air supply unit, and the temperature rise due to adsorption heat and apparent thermal conductivity A device for measuring moisture-absorbing and exothermic materials that can simultaneously measure
(A) The precise rapid thermophysical property measuring unit is composed of a precise rapid thermophysical property measuring device and a heat source plate.
(B) The measurement unit is composed of a temperature table and a temperature measurement sensor for maintaining a constant temperature, and the temperature table is composed of an upper surface part, a middle part and a lower part, and the central region of the constant temperature table is from the upper surface part to the middle of the lower part. A recess that reaches, a temperature measurement sensor is provided on the bottom of the recess,
A water supply port and a drain port for circulating the constant temperature water supplied from the water supply unit are provided in the middle of the constant temperature table,
An air supply port is provided at the lower part of the constant temperature table to deliver the temperature-controlled and humidity-controlled air supplied from the air supply unit to the recess.
(C) The water supply unit is composed of a heater, a pump, and a water pipe, and the heater and the pump are connected to a water supply port and a drain port by the water pipe.
(D) The air supply unit includes a temperature / humidity adjusting air generating device, a flow rate adjusting cock, and an air pipe. The temperature / humidity adjusting air generating device and the air supply port are connected by the air pipe, and the air pipe. Provide a flow control cock in Using the measuring device according to claim 3, moisture absorption that enables measurement of the temperature rise due to adsorption heat and the apparent thermal conductivity can be performed simultaneously by measuring under the conditions and order shown in (1) to (6) below. Measuring method of exothermic material.
(1) Measurement is performed in an environment where the temperature and humidity are adjusted to 20 ° C. and 65%.
(2) The temperature of the heat source plate is 25 to 45 ° C., and is left for about 1 hour or more until it becomes stable.
(3) Circulating 20 ° C. water heated by a heater in the middle of the temperature-controlled table, and keeping the temperature in the temperature-controlled table at 20 ° C.
(4) Air having a temperature of 20 to 35 ° C. and a humidity of 40 to 100% is poured from the air supply unit into the recess so as to have a flow rate of 1 to 15 mm ³ / sec.
(5) Fix the dough of the temperature-controlled sample for 2 hours or more in an environment of 20 ° C. and 65% on a constant temperature table. The fabric is hung so that the temperature measurement sensor touches the back of the sample fabric, and the fabric is sandwiched between the heat source plate and the top surface of the constant temperature table.
(6) The thermal conductivity of the dough is measured at the portion sandwiched between the upper surface of the constant temperature table and the heat source plate, and the adsorption heat of the dough is measured at the portion touching the temperature measurement sensor.

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