JP3959397B2 - Adhesive and hot carpet and wetsuit using the adhesive - Google Patents

Description

  The present invention relates to an adhesive excellent in heat insulation and heat retention and a product using such an adhesive.

  As shown in FIG. 5, a hot carpet (1) placed on a floor or tatami mat and used for heating has a heating unit (2a) in which a heating element (2a) is embedded in a cloth made of a nonwoven fabric or the like. ) Is interposed between the surface material (3) made of nonwoven fabric or woven fabric and the floor surface base material (4) made of urethane resin-impregnated nonwoven fabric or urethane foam, and an adhesive (5) between each layer. It has a structure that is bonded and integrated. Further, in order to effectively use the heat generated by the heating element (2a), a heat insulating sheet, a heat insulating sheet (not shown), etc. are attached to the floor side of the heating element (2a).

  As described above, in the hot carpet (1) in which the heat insulating sheet and the heat insulating sheet are attached to the floor surface side of the heating element (2a), the heat generated by the heating element is not transmitted to the floor surface, and the heat can be effectively used. However, there has been a problem that a hot carpet cannot be manufactured efficiently and economically because a heat insulating sheet and a heat insulating sheet must be prepared separately during the manufacturing process, and the number of processes increases.

  Therefore, as a technology that can solve such problems, the heat generating unit (2) and the floor base material (4) are bonded to each other with an adhesive (5) having a heat insulating and heat insulating effect, and the heat insulating unit (5) is insulated. Technology that guarantees the performance and heat retention.

  Here, as a technique for giving the adhesive (5) a heat insulating and heat retaining effect, a technique of mixing a hollow body such as a hollow ceramic ball in the adhesive (5) is known (for example, Patent Document 1 and 2). According to these techniques, since air contained in the hollow body acts as a heat insulating material, a certain degree of heat insulating and heat retaining effect can be expected.

However, using the adhesive (5) mixed with the hollow body, in order to insulate the high-temperature radiant heat generated by the heating element from diffusing to the floor surface, the adhesive (5) is thickly applied. The thickness of the adhesive layer (that is, the heat insulating layer) formed in (5) must be increased. The hot carpet having such a thick adhesive layer is not flexible and becomes rigid and heavy. In other words, when a hot carpet is manufactured with an adhesive having a conventional heat insulating and heat retaining effect, the characteristics required for the hot carpet other than the heat insulating properties (for example, floor followability, foldability and portability) are deteriorated. There was a problem.
JP-A-8-141505 (page 2-3) Japanese Patent Laid-Open No. 2000-21958 (2nd page)

  Therefore, a main problem of the present invention is to provide an adhesive particularly suitable for bonding flexible members, which can impart excellent heat insulation and heat retention with a small amount of use. Moreover, the further subject of this invention is providing the product which improved the heat insulation or heat retention using such an adhesive agent.

According to the first aspect of the present invention, “a hollow substrate (26), a metal powder (28), and bamboo charcoal fine powder are added to an adhesive base material (24) made of an elastic resin and having flexibility even after adhesion of an adherend. It is an adhesive (10) for hot carpets and wetsuits characterized by being “mixed”.

  In the adhesive (10) of the present invention, the hollow minute body (26) enclosing air functions as a heat insulating material, and the metal powder (28) reflects radiant heat, so that the radiant heat incident on the adhesive (10) is As the movement is repeated in the adhesive base material (24), a part of the movement is returned to the incident side.

  Therefore, even when the layer formed by the adhesive (10) is thin, that is, when the amount of the adhesive (10) used is small, the radiant heat applied to the adhesive (10) is not affected by the adhesive (10 ) Cannot be easily passed, and a heat insulating or heat retaining effect can be surely exhibited.

  The adhesive (10) of the present invention uses an elastic resin having flexibility even after adherend adhesion as the adhesive base (24), so that it has flexibility as well as heat insulation or heat retention. It is particularly suitable for bonding required members.

In addition, in the adhesive (10) of the present invention, the radiant heat that has not been insulated or kept warm by the hollow micro object (26) or the metal powder (28) is absorbed by bamboo charcoal fine powder having properties very close to those of a black body. Will be.

Here, the radiant heat absorbed in the bamboo charcoal fine powder is released from the bamboo charcoal fine powder again as far infrared rays, but since the metal powder (28) is blended in the adhesive base material (24), the bamboo charcoal fine powder The far-infrared rays emitted from the laser beam are reflected by the metal powder (28), repeatedly move in the adhesive base material (24), and a part thereof is returned to the incident side (radiant heat).

By further mixing bamboo charcoal fine powder into the adhesive (10) mixed with the hollow micro object (26) and metal powder (28) in this way, the heat insulating and heat insulating effect of the adhesive (10) can be further improved. Can do.

The invention described in claim 2 is “adhesive comprising a sheet-like floor base material (14) and an adhesive (10) according to claim 1 formed on the surface of the floor base material (14)”. A layer (20) and a surface layer material (18) laminated on the surface of the floor surface base material (14) via an adhesive layer (20), and a heating element (16) is disposed therein. The heating carpet (12) is characterized in that the heating element (16) is disposed in the vicinity of the adhesive interface between the adhesive layer (20) and the surface layer material (18).

In the hot carpet (12) of the present invention using the adhesive (10) according to claim 1 , the heating element (16) is disposed in the vicinity of the adhesive interface between the adhesive layer (20) and the surface layer material (18). In other words, since the adhesive (10) with high heat insulation and heat retention effect is interposed between the heating element (16) and the floor side, the heat generated by the heating element (16) is easily Not transmitted to the floor side. For this reason, the heat generated by the heating element (16) can be efficiently used for heating without providing a separate heat insulating sheet or heat insulation sheet on the floor side of the heating element (16).

  Further, when manufacturing the hot carpet (12), not only a heat insulating sheet and a heat insulating sheet are unnecessary as described above, but also an adhesive (10) is applied to the surface of the floor surface base material (14). Since the adhesive layer (20) is formed, the heating element (16) and the surface layer material (18) are sequentially laminated on the adhesive layer (20), and these are simply bonded and integrated. (12) can be manufactured.

The invention described in claim 3 is described as follows: “A surface layer material (32) made of an elastic foam and an adhesive layer formed on the back surface of the surface material (32) made of the adhesive (10) according to claim 1 ( 20) and the inner layer material (34) laminated on the surface layer material (32) via the adhesive layer (20) ".

In the wet suit (30) of the present invention using the adhesive (10) according to claim 1 , the surface layer material (32) and the inner layer material (34) are bonded together by the adhesive (10) having a high heat insulation and heat retention effect. Therefore, the body temperature of the wearer located on the inner layer material (34) side can be prevented from diffusing to the surface layer material (32) side (that is, the low temperature side), and the body temperature of the wet suit wearer can be deprived. Can be prevented.

  The adhesive (10) for bonding the surface layer material (32) and the inner layer material (34) is flexible even after adherend adhesion, so that the wearer performs intense exercise ( Even if stress is applied to 30), there is no concern that the surface layer material (32) and the inner layer material (34) bonded via the adhesive layer (20) will peel off.

  According to the present invention, since the hollow micro object mixed with the adhesive functions as a heat insulating material, and the metal powder reflects radiant heat, high heat insulating properties and heat insulating properties can be imparted to the adhesive.

  Moreover, the heat retention and heat insulation effect of an adhesive agent can be further improved by further mixing bamboo charcoal fine powder with the adhesive agent.

  Therefore, it is possible to exhibit excellent heat insulation and heat retention with a small amount of use, and to provide a particularly suitable adhesive for bonding flexible members, and also excellent heat insulation and heat retention using such an adhesive. Products can be provided.

  Hereinafter, the adhesive of the present invention and products using the adhesive will be described in detail with reference to the drawings.

  FIG. 1 is a cross-sectional view schematically showing a hot carpet (12) using the adhesive (10) of the present invention, which is roughly a bottom substrate (14), a heating element (16), a surface layer material (18) and these. It is comprised by the adhesive bond layer (20) which adhere | attaches and integrates.

The bottom substrate (14) is the lowermost layer of the hot carpet (12) and has a basis weight of about 50 to 300 g / m ² made of synthetic fibers such as polyester, polypropylene, polyamide and acrylic, and natural fibers such as wool. The needle punched nonwoven fabric (14a) is cut into a predetermined size. The bottom substrate (14) may be impregnated with a non-slip or heat-insulating urethane resin (14b) as necessary.

  On the surface of the bottom substrate (14), a heating element (16) and a surface layer material (18) are sequentially laminated via an adhesive layer (20) described later.

  The heating element (16) is a member that converts electrical energy into thermal energy. As the heating element (16), a deformable linear material such as a nichrome wire or carbon fiber is suitable, and those coated with an electrically insulating resin are used. The heating element (16) is arranged so as to uniformly heat the entire surface of the hot carpet (12).

The surface layer material (18) protects the heating element (16) attached to the surface of the bottom base material (14) and provides cushioning to the hot carpet (12) in cooperation with the bottom base material (14). The needle punch nonwoven fabric (18a) having a weight per unit area of about 50 to 300 g / m ² made of synthetic fibers such as polyester, polypropylene, polyamide and acrylic, and natural fibers such as wool. A cover member (22) knitted in a pile shape with acrylic fiber or wool is detachably attached to the upper surface of the surface layer material (18).

  The adhesive layer (20) is for bonding and integrating the base material (14), the heating element (16), and the surface layer material (18), and the adhesive (10) of the present invention is attached to the bottom surface. It is formed by applying to the entire surface of the substrate (14).

  Here, the adhesive (10) of the present invention is composed of an adhesive substrate (24), a hollow fine body (26), a metal powder (28), and the like. Needless to say, in addition to the above-described components, various stabilizers such as a solvent and an antioxidant and a light stabilizer may be added.

  The adhesive base material (24) imparts adhesiveness and formability to the adhesive (10), and is made of an elastic resin such as chloroprene rubber or urethane resin that has flexibility even after adherend adherend. In addition, since the adhesive base material (24) before adhesion of the adherend is in a state dissolved in a solvent, in order to firmly adhere the adhesive base material (24) to the adherend, the solvent is evaporated or vaporized. is required.

  The hollow micro object (26) is used to impart heat retention to the adhesive (10). The surface of Shirasu balun, pearlite, fly ash balun, alumina balun, zirconia balun, glass balun, and polymer hollow microspheres is made of inorganic powder. It is constituted by at least one such as a coated hybrid microsphere. Among these, hybrid microspheres in which the surface of the polymer hollow microsphere mainly composed of polyacrylonitrile is coated with an inorganic powder such as calcium carbonate or talc are particularly preferable from the viewpoint of uniformity of quality.

  The particle size of the hollow micro object (26) is preferably in the range of 5 to 100 μm, more preferably in the range of 10 to 60 μm. When the particle size of the hollow micro object (26) is less than 5 μm, the amount of air contained in the hollow micro object (26) is reduced, resulting in poor heat retention, and conversely, when the particle size is larger than 100 μm. This is because, as a result of the hollow micro object (26) being exposed on the surface of the adhesive (10) in a wide area, the adhesive strength of the adhesive (10) is significantly reduced.

  Moreover, it is preferable that the mixture ratio of the hollow micro object (26) in an adhesive agent (10) is the range of 1-10 weight part with respect to 100 weight part of adhesive base materials (24) mentioned above. When the mixing ratio of the hollow micro object (26) is less than 1 part by weight, sufficient heat retention cannot be given to the adhesive (10). This is because the heat retention is sufficient, but the adhesive strength of the adhesive (10) is lowered.

  The metal powder (28) is for reflecting the radiant heat given to the adhesive (10), and is made of a metal such as aluminum, stainless steel and copper. Among these, those made of aluminum that can be easily processed by powder are particularly preferable.

  The metal powder (28) is preferably flat so that radiant heat can be reflected with a large surface area, and the average particle size is preferably in the range of 5 to 20 μm. When the average particle size of the metal powder (28) is less than 5 μm, the viscosity of the adhesive (10) rises rapidly, making it difficult to disperse the metal powder (28) in the adhesive (10). When the average particle size is larger than 20 μm, the number of the metal powder (28) per unit volume of the adhesive (10) decreases, and the radiant heat reflection performance of the adhesive (10) decreases. .

  Further, the blending ratio of the metal powder (28) in the adhesive (10) is preferably in the range of 3 to 50 parts by weight, more preferably 10 to 30 parts by weight with respect to 100 parts by weight of the adhesive base (24). Part range. When the blending ratio of the metal powder (28) is less than 3 parts by weight, sufficient radiant heat reflection effect cannot be given to the adhesive (10). This is because the radiant heat reflection effect has reached its peak and is not economical, and the adhesive strength of the adhesive (10) is lowered.

  When producing the adhesive (10) of the present invention, an adhesive substrate (24) and various stabilizers are added to and dissolved in a solvent to form an adhesive composition, and then a predetermined amount is added to the adhesive composition. These hollow fine bodies (26) and metal powder (28) are added and kneaded to uniformly disperse them. Thereby, the adhesive (10) excellent in heat insulation and heat retention is completed.

  Next, when producing the hot carpet (12) of the present invention, first, using a known coating method such as a spray method and a roll coating method, the adhesive (10) on the surface of the floor surface substrate (14) Is applied to form an adhesive layer (20) having a thickness of about 50 μm to 1 mm.

  Then, the heating element (16) and the surface layer material (18) are placed in this order on the adhesive layer (20), and are sandwiched by a pressing device (not shown), and 1-5 under a temperature condition of around 150 ° C. Crimp for about a minute. This completes the hot carpet (12) in which the bottom substrate (14), the heating element (16), and the surface layer material (18) are bonded and integrated through the adhesive layer (20).

  When energization is started to the heating element (16) of the completed hot carpet (12), the heating element (16) starts to generate heat and the hot carpet (12) is warmed.

  Here, in the hot carpet (12) of the present invention, the heating element (16) is disposed in the vicinity of the adhesive interface between the adhesive layer (20) and the surface layer material (18), that is, the heating element (16). An adhesive (10) is interposed between the floor surface side. The adhesive (10) is blended with a hollow fine body (26) in which the enclosed air functions as a heat insulating material, and a metal powder (28) that reflects radiant heat. For this reason, the radiant heat incident on the adhesive (10) out of the heat generated by the heating element (16) repeatedly moves in the adhesive layer (20), and a part of it is incident side (i.e., surface layer material ( 18) side). Therefore, even if the thickness of the adhesive layer (20) is thin, the heat generated by the heating element (16) is not easily transferred to the floor surface, and the heat is efficiently transferred to the surface of the hot carpet (12). Can be used for heating.

  In addition, since the adhesive (10) of the present invention uses a material having flexibility even after adhesion of the adherend as the adhesive base material (24), hot adhesive other than heat insulation such as floor surface followability and foldability is used. There is no worry of exacerbating other properties required for carpet.

In the example of FIG. 1 described above, as the adhesive (10), the adhesive base (24) is mixed with the hollow micro object (26) and the metal powder (28). It is preferable to further mix bamboo charcoal fine powder (not shown) with the agent (10).

  Bamboo charcoal fine powder absorbs radiant heat and has a property very close to that of a black body that releases the absorbed heat as far infrared rays again.

  The average particle size of the bamboo charcoal fine powder is preferably in the range of 0.1 to 50 μm. When the average particle size of the bamboo charcoal fine powder is less than 0.1 μm, it becomes difficult to handle the powder, and conversely, when it is larger than 50 μm, the number of bamboo charcoal fine powder per unit volume of the adhesive (10) This is because the effect of adding fine bamboo charcoal powder is reduced.

  The bamboo charcoal fine powder preferably has a blending ratio of 0.1 to 3% by weight with respect to the total solid content of the adhesive (10). When the blending ratio of the bamboo charcoal fine powder is less than 0.1% by weight, the adhesive (10) cannot give a sufficient heat-absorbing and radiating effect, and conversely, when it is more than 3% by weight, This is because the adhesive strength of the adhesive (10) is reduced as a result of an increase in the total amount of powder including the hollow microscopic body (26) and the metal powder (28) in the adhesive substrate (24). .

  When the bamboo charcoal fine powder as described above is added to the adhesive (10), the radiant heat that is not insulated or kept warm by the hollow fine body (26) or the metal powder (28) will be absorbed by the bamboo charcoal fine powder. . And the radiant heat absorbed by the bamboo charcoal fine powder is released from the bamboo charcoal fine powder again as far infrared rays, but since the metal powder (28) is blended in the adhesive base material (24), The emitted far-infrared rays are reflected by the metal powder (28), repeatedly move in the adhesive base material (24), and a part thereof is returned to the surface layer material (18) side. Thus, by further mixing bamboo charcoal fine powder with the adhesive (10), the heat retaining and heat insulating effect of the adhesive (10) can be further improved.

  In the example of FIG. 1 described above, an example is shown in which the bottom base material (14) is composed of a needle punched nonwoven fabric (14a) impregnated with a non-slip or heat insulating urethane resin (14b). The substrate (14) may be of any form as long as it does not easily slide on the floor surface and has cushioning properties when placed on the floor surface, for example, a foamed urethane resin sheet You may make it comprise by these.

  Furthermore, the case where the cover member (22) is attached to the upper surface of the surface layer material (18) has been shown, but the surface layer material (18) is a pile woven fabric having better cushioning and heat retention than the needle punched nonwoven fabric (18a), etc. The cover member (22) may be omitted.

  Next, FIG. 2 is a cross-sectional view schematically showing a wet suit (30) using the adhesive (10) of the present invention. In general, the surface layer material (32), the inner layer material (34), and these are bonded and integrated. It consists of an adhesive layer (20) to be made.

  Since the adhesive layer (20) is the same as the hot carpet (12) described above, the description of the hot carpet (12) is used instead of the description of the wet suit (30).

  The surface layer material (32) is used to prevent water from entering the wet suit (30) and to insulate and keep warm so that the body temperature of the wearer is not deprived. Natural rubber or polychloroprene or chlorosulfonated It is composed of an elastic foam in which closed cells are provided in a synthetic rubber such as polyethylene. In particular, as the elastic foam, foamed polychloroprene is preferable in consideration of the fit to the body, the stretchability, the light weight, and the heat insulation / heat retention effect when the wet suit (30) is tailored.

  The inner layer material (34) reduces friction between the surface layer material (32) made of an elastic foam and the wearer's skin when the wet suit (30) is worn, and also ensures breathability and improves the feeling of wear. And is composed of a woven fabric, a knitted fabric or a non-woven fabric having the same degree of elasticity as the surface layer material (32). As the inner layer material (34), a woven or knitted fabric of a two-weight ricot having stretch properties in both length and width, specifically, a nylon jersey or a polyester jersey is suitable.

  When producing the wet suit (30) of the present invention, first, the adhesive (10) is applied to the surface of the surface layer material (32) using a known coating method such as a spray method and a roll coating method, An adhesive layer (20) having a thickness of about several μm to several tens of μm is formed.

  Subsequently, the inner layer material (34) is placed on the adhesive layer (20), and is sandwiched by a pressing device (not shown), and is crimped for about 1 to 5 minutes under a temperature condition of about 100 to 150 ° C. Thereby, the cloth for the wet suit (30) in which the surface layer material (32) and the inner layer material (34) are bonded and integrated through the adhesive layer (20) is completed.

  Then, the cloth for the wet suit (30) is cut into a predetermined shape, and is sewed so that the inner layer material (34) is on the inside, thereby completing the wet suit (30).

  In the wet suit (30) of the present invention, the surface layer material (32) and the inner layer material (34) are bonded by the above-described adhesive (10) having a high heat insulation and heat retention effect, so the inner layer material (34) side It is possible to prevent the body temperature of the wearer located at the surface layer (32) side (that is, the low temperature side) from diffusing and prevent the body temperature of the wearer of the wet suit (30) from being deprived.

  The adhesive (10) for bonding the surface layer material (32) and the inner layer material (34) is flexible even after adherend adhesion, so that the wearer performs intense exercise ( Even if stress is applied to 30), there is no concern that the surface layer material (32) and the inner layer material (34) bonded via the adhesive layer (20) will peel off.

Further, as in the case of the hot carpet (12) described above, it is preferable to mix bamboo charcoal fine powder with the adhesive (10). Thereby, the heat retention and heat insulation effect of the adhesive (10) can be further improved.

  Examples of the present invention are specifically shown below, but the technical scope of the present invention is not limited to these Examples.

<Preparation of adhesive composition>
Toluene (manufactured by TonenGeneral Sekiyu KK) was prepared as a solvent, and chloroprene rubber (trade name manufactured by DuPont Dow Elastomer Co., Ltd .; Neoprene (registered trademark) WRT) serving as an adhesive base was dissolved in the solvent.

  In addition, a polyphenol-based anti-aging agent (trade name manufactured by Ouchi Shinsei Chemical Industry Co., Ltd .; NOCRACK (registered trademark) DAH), a phenol-based antioxidant (trade name manufactured by Ciba Specialty Chemicals Co., Ltd .; Irga) Nox (registered trademark) 1010), light stabilizer (trade name, Sankyo Lifetech Co., Ltd .; Sanol (registered trademark) LS-770) and property stabilizer (trade name, manufactured by Telnic Industry Co., Ltd .; YS-98) were added and mixed. Thus, an adhesive composition was obtained. Here, the property stabilizer is adjusted so that the viscosity and adhesive strength of the adhesive base material are within a predetermined range by controlling the crosslinking of the adhesive base material, and the adhesive base material after the adherend is bonded. Is to have a predetermined shape retention. In addition, Table 1 shows the blending ratio of each raw material described above.

<Manufacture of hot carpet>
[Example 1]
Prior to manufacturing the hot carpet, the adhesive was first prepared. Specifically, hybrid microspheres (trade name manufactured by Matsumoto Yushi Seiyaku Co., Ltd .; Matsumoto Microsphere (registered trademark) MFL-80GCA) are prepared as hollow microscopic bodies, and aluminum paste (product manufactured by Asahi Kasei Kogyo Co., Ltd.) is used as the metal powder. Name: Asahi Kasei Aluminum Paste 66NL-B [containing 65% metallic aluminum]) was prepared.

  Then, 5 parts by weight of the hollow fine body and 20 parts by weight (about 30 parts by weight in the case of the above-mentioned aluminum paste) metal powder with respect to 100 parts by weight of the adhesive base material (chloroprene rubber). It knead | mixed so that these might be disperse | distributed uniformly within an adhesive base material, and the adhesive agent was obtained.

Next, a needle punched nonwoven fabric (felt) having a basis weight of 180 g / m ² was prepared as a floor surface base material and a surface layer material, and a nichrome wire heater was prepared as a heating element.

  And after apply | coating the said adhesive agent to the surface of a floor surface base material by spray coating and forming an adhesive layer about 50 micrometers thick, a heat generating body and a surface layer material are mounted in this order on the said adhesive layer. The hot carpet was obtained by pressing and pressing for 3 minutes at a temperature of about 150 ° C.

[Example 2]
Except for blending the bamboo charcoal fine powder (manufactured by Fujilite Kogyo Co., Ltd.) with an average particle size of about 10 μm into the adhesive of Example 1 so that the blending ratio with respect to the total solid content of the adhesive is 1.5% by weight. A hot carpet was obtained under the same conditions as in Example 1.

[Comparative Example 1]
A hot carpet was obtained under the same conditions as in Example 1 except that an adhesive composition to which no hollow fine particles or metal powder was added was used as an adhesive.

[Comparative Example 2]
The adhesive composition was prepared by adding 5 parts by weight of a hollow microbody (trade name Matsumoto Microsphere (registered trademark) MFL-80GCA, manufactured by Matsumoto Yushi Seiyaku Co., Ltd.) to 100 parts by weight of the adhesive substrate. A hot carpet was obtained under the same conditions as in Example 1 except for the above.

<Physical properties comparison of each hot carpet>
A temperature sensor was embedded in the surface layer material of the hot carpet of each of the above-described examples (Examples 1 and 2 and Comparative Examples 1 and 2), and the heating element was energized. Then, the power when the temperature reached a predetermined temperature (specifically 55 ° C.) was measured, and the surface load density was calculated by dividing this power by the surface area of the heater. The obtained results are shown in FIG. The surface load density is an index for judging the heat generation efficiency of the heater. The smaller the value, the higher the heat use efficiency for obtaining a predetermined temperature and the smaller the load on the heater.

  As shown in FIG. 3, it can be seen that the hot carpets obtained in Examples 1 and 2 have a lower surface load density than those in Comparative Examples 1 and 2. Thereby, the hot carpet of this invention has the high heat insulation to a floor surface side, and it can be said that the heat of a heater can be utilized efficiently.

<Manufacture of wetsuit fabric>
[Example 3]
An adhesive was prepared in the same manner as in Example 1, CR sponge (foamed polychloroprene rubber manufactured by Yamamoto Chemical Co., Ltd.) was prepared as a surface layer material, and a nylon jersey was prepared as an inner layer material.

  And after apply | coating the said adhesive agent on the back surface of a surface layer material by spray coating and forming the adhesive layer about 50 micrometers in thickness, it mounts an inner layer material on the said adhesive layer, and is pinched | interposed with a press apparatus, A wet suit fabric was obtained by pressing for 3 minutes at a temperature of about 130 ° C.

[Example 4]
Except for blending the bamboo charcoal fine powder (manufactured by Fujilite Kogyo Co., Ltd.) with an average particle size of about 10 μm into the adhesive of Example 3 so that the blending ratio with respect to the total solid content of the adhesive is 1.5% by weight. Under the same conditions as in Example 3, a wetsuit fabric was obtained.

[Comparative Example 3]
A wetsuit fabric was obtained under the same conditions as in Example 3 except that an adhesive composition to which no hollow fine body or metal powder was added was used as an adhesive.

[Comparative Example 4]
The adhesive composition was prepared by adding 5 parts by weight of a hollow microbody (trade name Matsumoto Microsphere (registered trademark) MFL-80GCA, manufactured by Matsumoto Yushi Seiyaku Co., Ltd.) to 100 parts by weight of the adhesive substrate. Except for the above, under the same conditions as in Example 3, a wetsuit fabric was obtained.

<Physical properties comparison of each wetsuit fabric>
The wetsuit fabric of each of the above-described examples (Examples 3 and 4 and Comparative Examples 3 and 4) is cut into A4 size, folded inward so that the inner layer materials face each other, and a temperature sensor is inserted in the center. It is. After that, these wet suit fabrics are put in a thermostat set at 42 ° C. and heated until the temperature sensor shows 40.2 ° C., and then the wet suit fabrics are taken out of the thermostat to room temperature (22 ° C.). And left to cool. And the temperature for every minute was measured until the temperature of the cloth for wet suits changed from 40 degreeC to 30 degreeC. The obtained results are shown in FIG.

  As shown in FIG. 4, it can be seen that the wetsuit fabric obtained in Examples 3 and 4 has a slower internal cooling rate than those of Comparative Examples 3 and 4. Thereby, it can be seen that the wet suit obtained by sewing the wet suit fabrics of Examples 3 and 4 has high heat retention, and the wearer's body temperature is hardly deprived.

It is sectional drawing which shows the outline of the hot carpet of one Example in this invention. It is sectional drawing which shows the outline of the wet suit of one Example in this invention. It is a graph which shows the change of the surface load density of a hot carpet. It is a graph which shows the change of the internal temperature of a wet suit. It is sectional drawing which shows the outline of the conventional hot carpet.

Explanation of symbols

(10) ・ ・ ・ Adhesive
(12) ・ ・ ・ Hot carpet
(14) ... Base material
(16) ... Heat
(18) ... Surface material
(20) ・ ・ ・ Adhesive layer
(22) ・ ・ ・ Cover member
(24) ・ ・ ・ Adhesive substrate
(26) ・ ・ ・ Hollow microscopic body
(28) ・ ・ ・ Metal powder
(30) ・ ・ ・ Wetsuit
(32) ・ ・ ・ Surface material
(34) ... Inner layer material

Claims (3)

An adhesive for hot carpets and wet suits, comprising an elastic base material made of an elastic resin and having a flexibility even after adhesion to an adherend, and a mixture of a hollow micro object, metal powder, and bamboo charcoal fine powder. . A sheet-like floor surface base material, an adhesive layer made of the adhesive according to claim 1 and formed on the surface of the floor surface base material, and the surface of the floor surface base material via the adhesive layer It is a hot carpet comprising a laminated surface layer material and a heating element disposed therein,
The hot carpet, wherein the heating element is disposed in the vicinity of an adhesive interface between the adhesive layer and the surface layer material. A surface layer material made of an elastic foam, an adhesive layer made of the adhesive according to claim 1 and formed on a back surface of the surface material, and an inner layer material laminated on the surface material through the adhesive layer; Wet suit characterized by being composed of.

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