JP2003089156A - Composite material manufacturing apparatus and manufacturing method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a composite heat insulating material to which heat insulating capacity and moistureproof capacity are added. SOLUTION: The composite material manufacturing apparatus manufactures the composite material wherein cover layers are laminated on both surfaces of a base layer. The material is equipped with feed passages (22 and 22A) for almost parallelly feeding a base layer, upper and lower coating rollers 25 and 26 for coating the upper and rear surfaces of the fed base layer with hot melt adhesives 23 and 24 supplied from upper and lower supply parts by rotating the rollers reversely, and upper and lower bonding rollers 11 and 12 having the same interval up and down in order to ensure the open times of the hot melt adhesives and bonding cover layers to the upper and rear surfaces of the base layer coated with the hot melt adhesives. Further, the material is also equipped with a temperature regulating heater 20 for preheating the hot melt adhesive in the lower supply part, or on the lower coating roller to regulate the temperatures of the hot melt adhesives applied to the upper and rear surfaces of the base layer to the substantially same temperature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for manufacturing a composite material, and more particularly to a building such as a house, particularly between the shafts of a house having a shaft such as a pillar, a rafter, or a joist. The present invention relates to a manufacturing apparatus and a manufacturing method of a composite material such as a composite heat insulating material which is filled, inserted or stretched and is useful for heat insulation of a house, a building and the like.

[0002]

2. Description of the Related Art Along with the need for energy saving, structures such as houses have been highly insulated and airtight. In the heat insulation construction of a house, a filling heat insulation construction method in which a heat insulation material is filled between shaft portions such as columns and rafters, and an outer insulation heat insulation construction method in which the heat insulation material is continuously stretched around the shaft portion on the outdoor side is adopted. Further, the heat insulation of the house is made high by increasing the thickness of the heat insulating material used in these construction methods or by using the heat insulating material having higher heat insulating performance. Also in the composite heat insulating material used under such a situation, conventionally, the adhesive and solvent adhesives or hot melt adhesives have been used to bond the heat insulating adhesives on each side.

On the other hand, synthetic resin foam such as expanded polystyrene is used as the heat insulating material. However, when this synthetic resin foam insulation is placed on the construction site, such as between shafts, water vapor gradually penetrates due to the difference in water vapor pressure inside and outside the room, so even if the thickness of the heat insulation layer is increased, moisture resistance will increase. Sex cannot be greatly improved. Therefore, a composite heat insulating material in which a moisture-proof film layer such as a polyethylene film or a polyvinyl chloride film is laminated on at least one surface of a synthetic resin foam is used.

By disposing such a composite heat insulating material between the shaft portions of a column or the like or on the outdoor side surface of the shaft portions, the moisture proof property can be greatly improved by the moisture proof film layer. Further, it has also been proposed that a metal reflective layer such as an aluminum foil is laminated on the composite heat insulating material to impart heat insulating properties, thereby greatly improving the heat insulating properties and reducing the thickness of the heat insulating layer (special feature). See Japanese Patent Laid-Open No. 2000-204689).

[0005]

However, in the prior art, first of all, if a solvent-based adhesive is used,
It is considered that volatile substances that may affect the human body are generated. Secondly, the adhesive resin adhesive requires an open time (curing period) for drying the resin after application. It was difficult to set the stacking time because the top and bottom were different. Also, in recent years, house waste materials have been taken up as an environmental load.However, if a non-combustible material such as metal foil is used for the heat insulating material, unburned materials may be left unburned during the incineration of scraps or the like, or they may be left untreated. It may be turned into industrial waste due to landfilling, etc., and cannot be recycled.

[0006] Therefore, one of the main objects of the present invention is to provide a composite material production apparatus for producing a composite material such as a composite heat insulating material having high heat insulation properties and moisture proof properties rapidly and stably with high quality, and The second main purpose is to provide a manufacturing method, specifically, a composite layer of a composite heat insulating material can be separated and treated, and a moisture-proof reflective layer for maintaining heat insulating property is incinerated. An object of the present invention is to provide an apparatus for producing a composite heat insulating material, which is capable of recycling the heat insulating layer itself.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a transport path for transporting a base layer substantially horizontally, an up-down supply section for supplying a hot-melt adhesive, and a vertically-arranged supply section are provided so as to face each other. The open time of the hot melt adhesive is secured between the upper and lower application rollers that apply the hot melt adhesive that has been transferred to the upper and lower surfaces of the conveyed base layer by rotating them upside down and these upper and lower application rollers. The upper and lower sticking rollers, which have the same spacing in the upper and lower sides and stick the coating layers on the upper and lower surfaces of the base layer coated with the hot melt adhesive, respectively, and the upper and lower feeding parts are on the roller surface of the lower coating roller. ,
Longer than the roller surface of the upper coating roller, each of which is provided in contact with the upper and lower coating rollers to provide an exposed section before the hot melt adhesive is applied from the time the hot melt adhesive is supplied to the time when the hot melt adhesive is applied to the base layer. Part or lower coating roller
The temperature of the hot melt adhesive applied to the upper and lower surfaces of the base layer is substantially set by preheating the hot melt adhesive in the lower supply section or the lower coating roller and preheating the lower melt section or the lower coating roller. Provided is an apparatus for producing a composite material, which is provided with a heater for adjusting temperature which is adjusted to be the same, and which produces a composite material in which a coating layer is laminated on both surfaces of a base layer.

That is, according to the present invention, the lower coating roller is longer on its roller surface than on the roller surface of the upper coating roller.
Since there is an exposed area before hot-melt adhesive application, it is unavoidable that the temperature of the hot-melt adhesive applied to the lower surface of the base layer will be reduced, but it is necessary to adjust the temperature within the lower supply part or the lower coating roller. The hot melt adhesive applied to the lower surface of the base layer is preheated by providing a heater, thereby adjusting the temperatures of the hot melt adhesive applied to the upper and lower surfaces of the base layer substantially the same, and In addition, the coating layers can be pressed and laminated simultaneously (with the same open time above and below) under the same conditions, so that the composite material can be manufactured quickly, stably, and with high quality.

In summary, the present invention is: (1) The hot-melt adhesive supplied from the upper and lower supply rollers to the coating roller for coating on the surface of the base layer has a high fluidity, and the upper and lower coating rollers rotate upside down. Therefore, the supply of the hot melt adhesive from the upper and lower supply parts to the upper and lower application rollers is faster by the upper supply roller from the upper supply part (for example, about 180 degrees faster than the rotation angle of the application roller). It is expedient to work from the lower supply to the lower application roller. (2) However, if the hot melt adhesive is exposed (exposed) to the air on the lower coating roller from such an early stage, the temperature lowers (for example, from 180 ° C. to 100 ° C., when applying to the base layer). A suitable temperature is usually 140 ° C.), which is to be preheated before being applied to the lower surface of the base layer.

In the present invention, "substantially the same" with respect to the temperatures of the hot-melt adhesives applied to the upper surface of the substrate means that the open times of the hot-melt adhesives are set to be the same and the coating layers are on the upper and lower surfaces. Means the temperature at which the hot-melt adhesive can be applied to, and varies slightly depending on the hot-melt adhesive used, but includes, for example, a difference of about 5 ° C. above and below. In the present invention, the exposed section of the lower coating roller before applying the hot melt adhesive is larger than that of the upper coating roller by about 180 degrees in terms of the rotation angle of the roller. It is preferable since it can be smoothly supplied.

In the present invention, the upper and lower reservoirs are defined by the upper and lower supply rollers and the upper and lower coating rollers that contact the upper and lower supply rollers, and store the hot melt adhesives supplied from the supply sources. Although it is preferable that the upper and lower reservoirs are constituted by upper and lower storage tanks, each part of the upper and lower supply rollers may be immersed in the upper and lower storage tanks.

The upper and lower supply rollers may include upper and lower doctor rollers, respectively, so that the amount of hot melt adhesive supplied to the upper and lower application rollers may be made more uniform. In this case, a temperature adjusting heater may be installed on each of the upper and lower doctor rollers. The upper and lower supply rollers may include upper and lower doctor blades, respectively.

In the present invention, the composite material is specifically,
A preferable example is a composite heat insulating material in which the base layer is a heat insulating layer and the coating layer is a moisture-proof reflective layer. Further, as a preferable moisture-proof reflective layer, a synthetic resin layer laminated in order from the outside, an aluminum vapor deposition layer deposited on the synthetic resin layer, a first adhesive layer, and a paper quality layer, the paper quality layer An example in which the inner surface of the above is releasably laminated on the heat insulating layer via a hot melt adhesive can be given.

According to another aspect of the present invention, the hot melt adhesive is supplied from the upper and lower supply portions to the upper and lower application rollers which are vertically opposed to each other, and the supplied hot melt adhesive is applied above and below the upper and lower application rollers. By reverse rotation, the upper and lower surfaces of the conveyed base layer are respectively coated, and then the same hot melt adhesive open time is secured on the upper and lower surfaces of the base layer coated with the hot melt adhesive, and then the coating layer is applied. A method for manufacturing a composite material, which comprises bonding each of them together to supply a hot melt adhesive from a supply roller to upper and lower coating rollers, when the hot melt adhesive is applied onto the roller surface of the lower coating roller and from the roller surface of the upper coating roller. It provides a long exposed area before the hot melt adhesive is applied from the time the hot melt adhesive is supplied to the time it is applied to the base layer. When applying to the upper and lower surfaces of the base layer with a la, the hot melt adhesive applied to the lower surface of the base layer is preheated before application, and the temperature of the hot melt adhesive applied to the upper and lower surfaces of the base layer is adjusted to be substantially the same. A method for manufacturing a composite material can be provided.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the embodiments shown in the accompanying drawings as needed. However,
The present invention is not limited to this embodiment. FIG. 1 is a schematic configuration explanatory view showing one embodiment of a composite material manufacturing apparatus of the present invention. 2 is a schematic perspective view showing one embodiment of the composite material, and FIG. 3 is a sectional view of the composite material.
First, the composite heat insulating material to be manufactured by the apparatus S for manufacturing composite heat insulating material according to the embodiment of the present invention shown in FIG.
3 will be described. The composite heat insulating material H is shown in FIG.
Thermal insulation layer 1 made of extruded expanded polystyrene resin
And upper and lower moisture-proof reflective layers 2 and 2 laminated on both sides of the heat insulating layer by adhesion.

The upper moisture-proof reflective layer 2 is formed by depositing a synthetic resin layer [polyethylene terephthalate (PET) film layer (moisture-proof layer, hereinafter simply referred to as PET film layer)] 5 from the outside in FIG. Deposited aluminum vapor deposition layer (moisture-proof / reflection layer) 4, first adhesive layer 7,
The paper material layer (kraft paper) 3 is laminated on the upper surface of the heat insulating layer 1 with the hot melt adhesive 6 interposed therebetween. The lower moisture-proof reflective layer 2 has the same structure as the upper moisture-proof reflective layer 2, and a description thereof will be omitted. In the manufacturing apparatus S for a composite heat insulating material shown in FIG. 1, the upper and lower moisture-proof reflective layers 2 and 2 prepared in advance are attached to both surfaces of the heat insulating layer 1 separately prepared via hot melt adhesives 23 and 24. The composite heat insulating material H is manufactured by attaching.

Referring now to FIG. 1, the apparatus S for manufacturing the composite heat insulating material S comprises the heat insulating layers 21, 21A [hot melt adhesives 23, 24 of the composite heat insulating material H, and the coating layers (moisture-proof reflective layers 17, 18). A) is laminated substantially horizontally from the right side to the left side, conveying paths 22 and 22A, upper and lower supply rollers (rolls) (also serving as doctor rollers) 27 and 28, and hot melt adhesive 23 from these supply rollers. , 24 to supply the supplied hot melt adhesives 23, 24 to the upper and lower surfaces of the transported heat insulating layer 21, respectively, and the hot melt adhesives. Upper and lower sticking rollers (rolls) 11 and 12 for sticking upper and lower moisture-proof reflective layers 17 and 18 to upper and lower surfaces coated with 23 and 24, respectively, and a heater for controlling the temperature of the hot melt adhesive 24 ( Electric Made mainly from data) 20.

Here, the upper supply roller 27 and the upper coating roller 25 constitute an upper storage portion of the hot melt adhesive 23 in a partition formed between the rollers, and the lower supply roller 2
8 and the lower coating roller 26 constitute a lower reservoir of the hot melt adhesive 24 in a partition formed between the two rollers.

The transport path 22 has a hot melt adhesive 23,
It is a (auxiliary) belt conveyor in a stage before applying 24 to the heat insulating layer 21, and the transport path 22A has the hot melt adhesives 23 and 24 applied to the heat insulating layer 21 and after the coating layers are laminated (pasted). It is a belt conveyor of the composite material 21A. The upper supply roller 27 uniformly supplies the hot melt adhesive 23 to the upper application roller 25. This supply is performed before the upper application roller 25 applies the hot melt adhesive 23 to the upper surface of the heat insulating layer 21. 90 degree angle (upper coating roller 2
5 from the lowest point, that is, the exposed section before the application of the hot melt adhesive before the hot melt adhesive is applied to the base layer).

On the other hand, the lower supply roller 28 has a rotation angle of 270 degrees before the hot-melt adhesive 24 is applied to the lower coating roller 26 and before the lower coating roller 26 applies the hot-melt adhesive 24 to the lower surface of the heat insulating layer 21. (An angle from the uppermost point of the lower coating roller 26, that is, an exposed section before the hot melt adhesive is applied from the time the hot melt adhesive is supplied to the time when the hot melt adhesive is applied to the base layer). It will be supplied about 180 degrees earlier than the supply to 25. Reference numerals 15 and 16 denote upper and lower hot melt dishes, which serve as a protection jig for preventing the hot melt adhesives 23 and 24 from dripping and taking out the hot melt adhesives after the work is completed.

The upper coating roller 25 coats the hot melt adhesive 23 supplied from the upper supply roller 27 on the upper surface of the heat insulating layer 21 at a predetermined temperature (for example, 140 ° C.). The lower coating roller 26 is disposed immediately below the upper coating roller 25, has the electric heater 20 as a temperature adjusting heater incorporated therein so that power can be supplied from the outside, and the hot melt adhesive 24 supplied from the lower supply roller 28. Is heated and applied to the lower surface of the heat insulating layer 21 at substantially the same temperature as the above predetermined temperature.

By the way, the upper and lower sticking rollers 11 and 12
Is installed at the same distance from the upper and lower coating rollers 25 and 26, and the hot melt adhesive 23,
The same open time of 24 can be secured, and the moisture-proof reflective layers 17 and 18 can be attached to both coated surfaces at the same time. Therefore, the upper and lower sticking rollers 11 and 12 can stick the moisture-proof reflective layers 17 and 18 to each other on the both coated surfaces of the heat-insulating layer 21 that have been opened under the same conditions in such a manner that they are pressed from above and below, and quickly and stably. Therefore, a high quality composite heat insulating material H can be obtained. In addition, 29 and 30 are upper and lower take-up rollers, 13 and 14 are upper and lower take-up rollers (tension rollers), and each of the latter rollers is the moisture-proof reflective layer 17 supplied from each of the former rollers. 18 for upper / lower pasting roller 1
Supply to 1 and 12.

Here, the upper and lower coating rollers 25, 2
6 will be added.
The rollers 26 and 26 are set so that the roller rotation directions are opposite to each other due to the relationship of the lines, and the feed rollers 27 and 28 are vertically different positions as described above due to the fluidity of the hot melt adhesive. The contact roller is installed about 180 degrees before the supply roller 27). Therefore, the hot melt adhesive reaching distance from the application roller 26 supplied from the supply roller 28 to the heat insulating layer 21A is
It becomes longer than the reaching distance of the hot melt adhesive from the upper coating roller 25 supplied from the supply roller 27 to the heat insulating layer 21A, and the temperature of the hot melt adhesive 24 decreases.
Therefore, the lower coating roller 26 is set to a temperature condition at least higher than that of the upper coating roller 25 by the electric heater 20 serving as a temperature adjusting heater, and the same temperature is set in a portion where the upper coating roller 25 and the lower coating roller 26 are in contact with the heat insulating layer 21A. The temperature conditions are set.

As the coating rollers 25 and 26, gravure rollers having a mesh on the surface are adopted, which makes it easy to uniformly supply the hot melt adhesive, and at the same time, the heat insulating layer 21.
It is possible to form a concave groove on each surface of A, which does not pose a problem in the product, and keep the adhesive performance constant. Further, after the hot melt adhesive is applied to the heat insulating material 21A, the aluminum vapor deposition film previously provided on the winding rollers 29 and 30 is attached to the heat insulating material through the upper and lower take-up rollers 13 and 14 according to the supply of the heat insulating material. . At that time, the upper and lower sticking rollers, that is, the pressure-bonding rolls 11 and 12 are designed to be at least smaller than the thickness of the heat insulating material 21A so as to prevent uneven sticking.

The obtained composite heat insulating material H is shown in FIG.
In the above, not only can the moisture vapor-proof property be enhanced by the aluminum vapor deposition layer 4 and the PET film layer 5, but also the reflection efficiency of radiant heat can be enhanced by the aluminum vapor deposition layer 4. Therefore, even if the thickness of the heat insulating layer 1 is small, high heat insulating property, moisture proof property and reflectivity can be improved. Further, although it is difficult to directly and evenly attach the heat insulating layer 1 and the aluminum vapor-deposited PET films 4 and 5, it is possible to interpose the kraft paper 3 so that the aluminum vapor-deposited PET film 4. 5 can be bonded uniformly and firmly. Further, the PET film layer 5 on the surface can effectively protect the aluminum vapor deposition layer 4 from being pierced or pierced. Moreover, the moisture-proof reflective layer 2 having the above characteristics is provided on both surfaces of the heat insulating layer 1. Therefore, when the composite heat insulating material H is used as a heat insulating material for a wall surface, a floor surface, a ceiling, etc. of a house, high heat insulating property and moisture proof property can be ensured, and heat due to solar radiation etc. is reduced to be transferred to the inside of the house. The efficiency can be further improved, and the heating and cooling load can be reduced.

As an effect of using an aluminum vapor-deposited PET film instead of an aluminum foil for the moisture-proof reflective layer 2, even if the aluminum foil is protected by a PET film or the like, the internal film is protected against piercing or piercing. There was a risk that the aluminum foil would break, but if the aluminum vapor-deposited PET film has excellent followability to deformation due to the thinness of the vapor-deposited layer, there will be no holes in the vapor-deposited layer, and its resistance is far superior. . Also, in terms of the reflection efficiency of radiant heat, the same level of performance as aluminum foil can be obtained by vapor deposition of aluminum with a slight thickness.
For example, when an outdoor exposure test (inclination angle of 30 ° with respect to the horizontal) was performed with the following sample configuration, the surface temperature was 0.8 ° C.
Only the aluminum foil was expensive. Sample configuration Example (aluminum vapor deposition layer) Comparative example (aluminum foil) Thickness of heat insulation layer 40mm 40mm Thickness of kraft paper 75μ 75μ Aluminum layer 0.045μ 20μ PET thickness 12μ 12μ

Aluminum is vapor-deposited on the moisture-proof reflective layer 2.
Another advantage of using the PET film layer 5 is that the composite heat insulating material H can be burnt and incinerated without being made into industrial waste such as scrap material at the time of construction or disassembly. Further, the extruded foamed styrene resin of the heat insulation layer 1 can be recycled.

[0028] Furthermore, in order to form a composite of a paper-like layer of a moisture-proof reflective layer, an aluminum vapor-deposited layer and a PET film layer (laminated sheet) and an extruded expanded styrene resin heat insulating layer, JIS K 6854-1977 (adhesive In the 180 degree peel test of (Peeling adhesion strength test method), the strength is 0.5 to 2.0 kg when the heat insulating material is used as a rigid material and the laminated sheet is used as a flexible material.
By using an adhesive or cohesive that is / 25 mm, it can be peeled off at the time of disposal and separate disposal can be achieved.

The moisture-proof reflective layer has a heat ray reflectivity and a material having a higher reflectance than the heat insulating layer, and has a lower moisture permeability than the heat insulating layer, for example, a metal vapor deposition film (aluminum vapor deposition plastic film, etc.). it can. Preferably, it is formed by aluminum vapor deposition, and for example, the thickness of the aluminum vapor deposition layer is about 100Å to 1000Å, preferably about 400Å or more, which is a thickness at which heat ray or light ray reflectivity is exhibited. In terms of moisture proof performance, the base film is preferably polyester, and the performance as an aluminum vapor-deposited PET film is measured by the measurement method described in JIS Z 0208-1976 (moisture permeability test method for moisture proof packaging materials: cup method). Is less than 1 g / (m ² · 24 hr). The thickness of the film can be selected from the range of, for example, 5 to 100 μm, preferably about 10 to 50 μm.

The moisture-proof reflective layer has a material constitution described in JIS A 6930-1997 (plastic-type moisture-proof film for homes) and has a moisture permeability resistance of 1 if it is a single film (A type).
It stipulates that 70 m2 · hr · mmHg / g or more is required, and if it is a composite film (type B), a moisture resistance of 300 m2 · hr · mmHg / g or more is required. If the moisture permeability is 1g / (m2 ・ 24hr) or less according to the measurement method described in JIS Z 0208-1976 (Moisture vapor proofing test method for moisture proof packaging materials: Cup method)
Since it will show 1000 m2 · hr · mmHg / g or more, it can be said that it has sufficiently excellent moistureproof performance.

In the present invention, the adhesive that can be used for the first adhesive layer, that is, the adhesive (or pressure-sensitive adhesive) that bonds the surface of the aluminum vapor deposition layer to one surface of the paper-like layer is not particularly limited. However, an adhesive usually used in this field can be appropriately selected and used. For example, vinyl acetate adhesive, acrylic adhesive, olefin adhesive, epoxy adhesive, urethane adhesive, silicone adhesive, waterproof / moisture-proof asphalt adhesive, etc. can be used. The adhesive may be a hot melt adhesive.

In the present invention, as an adhesive that can be used in the hot melt adhesive layer, preferably an adhesive for peelably laminating the moisture-proof reflective layer on the heat insulating layer, for example, a vinyl acetate adhesive, Acrylic adhesive, olefin adhesive, epoxy adhesive, urethane adhesive,
Various commercially available materials such as silicone adhesives, waterproof and moisture-proof asphalt adhesives can be used, but 180 degree peeling test of JIS K 6854-1977 (Test method for adhesive peel strength) So, when you look at the heat insulating material as a rigid material and the laminated sheet as a flexible material, the strength is 0.5 to 2.0 kg.
A range of / 25 mm is preferred. In this case, if it is 0.5 kg / 25 mm or less, it is easily peeled off, and its value as a composite heat insulating material is suspected.
If it is 0 kg / 25 mm or more, it is one of the effects of the present invention that it is difficult to separate due to the sorting process, and there is a risk that the paper will adhere to the heat insulating layer due to the destruction of kraft paper. In the present invention,
As the adhesive used for the hot melt adhesive layer, specifically, EVA (ethylene / vinyl acetate copolymer), SBS
(Polystyrene / polybutadiene / block copolymer), SIS (polystyrene / polyisoprene / polystyrene, block terpolymer), SEBS (polystyrene / polybutadiene / block copolymer)
Polyethylene butylene block copolymer), SEPS
[Polystyrene / poly (ethylene / propylene) / polystyrene / block terpolymer], or
Mention may be made of hot melt adhesives containing two or more.

The composite using the hot melt adhesive has a softening temperature of 80 according to the method described in JIS K 6863-1994 (method for testing softening point of hot melt adhesive (ring and ball method)).
Adhesives in the range of ℃ to 140 ℃ can be used. In this case, when the softening point is 80 ° C or lower, the heat-resistant temperature can be considered to be 60 ° C or lower, which is a fatal drawback in use as a building material. On the contrary, when the softening point is 140 ° C or higher, the heat resistance of the heat insulating material is 80 when it is compounded with foam polystyrene resin heat insulating material or foam polyolefin resin (foam polyethylene resin, foam polypropylene resin, etc.). ℃ ~ 100
Since the temperature is about ℃, the heat insulating layer may be crushed.

For the paper quality layer, various kinds of paper such as kraft paper can be used. These paper layers are not limited to a single layer, but may be a composite layer in which a plurality of papers are laminated. The thickness of the paper material layer is, for example, 10 μm to 2 mm, preferably 30 μm.
It can be selected from the range of about m to 1 mm.

As the heat insulating material constituting the heat insulating layer, foamed polyolefin resin (foamed polyethylene resin, foamed polypropylene resin, etc.), foamed polyurethane resin, foamed styrene resin (foamed polystyrene, etc.), foamed phenol resin, etc. It can be selected from the foamed plastic heat insulating materials. The heat insulating materials may be used alone or in combination of two or more as a mixed resin foam or a laminate. As a preferable heat insulating layer, a hard foam plastic heat insulating material having relatively high moisture proof performance and rigidity which is advantageous for construction, particularly foamed styrene resin is preferable in consideration of recycling. Further, from the viewpoint of productivity, it is advantageous that the heat insulating layer is formed of an extruded expanded styrene resin board (plate heat insulating material).

The thickness of the heat insulating layer can be selected according to the type of heat insulating portion, and is, for example, 1 to 30 cm, preferably 1 to 30 cm.
It can be appropriately selected from the range of about 20 cm. Since the heat insulating material of the present invention includes the moisture-proof reflective layer, high heat insulating property can be secured even if the thickness of the heat insulating layer is 1 to 15 cm, particularly 1 to 10 cm. The heat insulating material of the present invention may be laminated with a plywood or a wood board such as an OSB (Oriented Strand Board). In addition, OSB applies adhesive to wood chips,
It is a plate-shaped product that is formed by arranging the fiber directions of the shavings and performing thermal compression molding.

The composite heat insulating material obtained by the apparatus and method for manufacturing the composite heat insulating material according to the present invention is used for the shaft (column,
The work may be performed by filling or fitting between studs), or may be arranged (tensioned) on the outside of the shaft portion by an outer lining method or the like. In addition, the "shaft part" means a building member of a frame structure of a building, and includes, for example, a pillar, a rafter, a girder, a stud, and a joist.

Further, in applying the heat insulating material, a sealing member (airtight tape material or the like) for sealing the moisture-proof film or sheet, the interior material, the exterior material, the face material, the furring strip and the joint portion of these members. Can be combined with construction.

The composite heat insulating material of the present invention is used in various structures, particularly houses in which the shafts such as columns and rafters are made of wood or steel frames (among others, structures requiring high heat insulation and airtightness). It is effective for heat insulation.

[0040]

According to the present invention, the hot melt adhesive is supplied to the lower coating roller from the lower supply section earlier than the upper supply section to the upper coating roller, and the hot melt adhesive is applied to the base layer by the upper and lower coating rollers. When applying to the upper and lower surfaces of the base layer, at least by heating the hot melt adhesive in advance before applying it to the lower surface of the base layer, and adjusting the temperature of the hot melt adhesive to be applied to the upper and lower surfaces of the base layer substantially the same. ,
Apply the hot melt adhesive to the base layer simultaneously under the same conditions,
Moreover, after the open time has elapsed, the coating layers are simultaneously pressed and laminated on both sides of the base layer under the same conditions, whereby the composite material can be manufactured quickly, stably, and with high quality.

[Brief description of drawings]

FIG. 1 is a schematic configuration explanatory view of one embodiment of a composite material manufacturing apparatus of the present invention.

FIG. 2 is a schematic perspective view showing one embodiment of a composite material.

3 is a cross-sectional view of the composite heat insulating material of FIG.

[Explanation of symbols]

1 heat insulation layer 2 Moisture-proof reflective layer 3 paper layers 4 Aluminum vapor deposition layer 5 Synthetic resin layer 6 Hot melt adhesive layer 7 First adhesive layer 11 Top pasting roller 12 Lower sticking roller 13 Upper take-up roller 14 Undertake roller 15 Top hot melt dish 16 Lower hot melt dish 17 Top moisture-proof reflective layer 18 Lower moisture-proof reflective layer 20 Temperature control heater (electric heater) 21, 21A heat insulation layer 22, 22A transport path 23 Hot melt adhesive 24 Hot melt adhesive 25 Top coating roller 26 Lower coating roller 27 Top supply roller 28 Lower supply roller 29 Upper winding roller 30 Lower winding roller S Composite heat insulation material manufacturing equipment H composite insulation

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) E04B 1/80 E04B 1/80 D 4J040 // C09J 5/00 C09J 5/00 B29L 7:00 B29L 7: 00 9:00 9:00 (72) Inventor Toshihiko Fujinaka 2-3, Awaji-cho, Chuo-ku, Osaka-shi, Osaka F-term (reference) within Dainippon Plastics Co., Ltd. 2E001 DD01 EA08 FA03 GA12 GA42 HB04 HD08 HD09 HF11 LA04 4D075 AC23 AC35 AC54 AC76 AC84 AE24 BB22X DA06 DA25 DB37 DC02 EA35 EB19 4F040 AA19 AB02 AC02 BA12 BA17 CB18 CB23 CB36 DA14 4F100 AB10C AK01B AK03B06B06B06B06B06B06B06B06B06B06B06B06B06B06B06B06B06B01B10B06B01BA10B07BA01 BA10BA07 BA07 BA07 BA07 BA07 BA07 BA07 BA10 AD08 AD20 AG01 AG03 AH46 TA04 TC02 TC05 TD11 TH01 TH02 TJ13 TJ15 TJ29 TN09 TN43 TN58 TN60 TN67 TQ03 TQ09 4J040 CA081 DA001 DB041 DE001 DE0 31 DF001 EC001 EF001 EK001 JA01 NA12 PA25

Claims (13)

[Claims] 1. A transport path for transporting a base layer substantially horizontally, an up-and-down supply section for supplying a hot-melt adhesive, and a hot-melt adhesive supplied from the up-and-down supply section, which are vertically opposed to each other. The upper and lower coating rollers that apply reverse rotation to the upper and lower surfaces of the base layer to be conveyed, and the same spacing between these upper and lower coating rollers to ensure the open time of the hot melt adhesive. And a top-and-bottom sticking roller for sticking the covering layers to the top and bottom surfaces of the base layer coated with the hot-melt adhesive, respectively, and the top-and-bottom supply part is provided on the roller surface of the bottom coating roller and on the roller surface of the top coating roller In order to provide a longer exposed section before hot-melt adhesive application from the time the hot-melt adhesive is supplied to the time when it is applied to the base layer, it is installed in contact with the upper and lower coating rollers, respectively Temperature of the hot melt adhesive applied to the upper and lower surfaces of the base layer by pre-heating the hot melt adhesive in the lower supply section or the lower coating roller, respectively. An apparatus for manufacturing a composite material, which comprises a heater for temperature control for adjusting the temperature to be substantially the same, for manufacturing a composite material in which a coating layer is laminated on both surfaces of a base layer. 2. The apparatus for manufacturing a composite material according to claim 1, wherein an exposed section of the lower coating roller before applying the hot melt adhesive is larger than that of the upper coating roller by about 180 degrees in terms of a rotation angle of the roller. 3. The upper and lower supply parts are composed of upper and lower storage parts respectively storing hot melt adhesives and upper and lower supply rollers supplying the hot melt adhesives from these upper and lower storage parts to the upper and lower coating rollers. 3. The apparatus for manufacturing a composite material according to claim 1, wherein the upper and lower supply rollers and the upper and lower application rollers contacting the upper and lower supply rollers are respectively defined by upper and lower storage partition portions. 4. The composite material manufacturing apparatus according to claim 3, wherein the upper and lower storage parts are formed of an upper and lower storage tanks in which parts of the respective upper and lower supply rollers are immersed. 5. The composite material manufacturing apparatus according to claim 3, wherein the upper and lower supply rollers include upper and lower doctor rollers, respectively. 6. The apparatus for producing a composite material according to claim 5, wherein the temperature adjusting heater is installed on the lower doctor roller. 7. The composite material manufacturing apparatus according to claim 3, wherein the upper and lower supply rollers include upper and lower doctor blades, respectively. 8. The apparatus for producing a composite material according to claim 1, wherein the temperature adjusting heater is an electric heater. 9. The apparatus for manufacturing a composite material according to claim 1, wherein the upper and lower coating rollers are upper and lower gravure rollers. 10. The apparatus for producing a composite material according to claim 1, wherein the base layer is a heat insulating layer, and the coating layer is a moisture-proof reflective layer. 11. The moisture-proof reflective layer comprises a synthetic resin layer laminated in order from the outside, an aluminum vapor deposition layer vapor-deposited on the synthetic resin layer, a first adhesive layer, and a paper-like layer,
The apparatus for producing a composite material according to claim 10, wherein the inner surface of the paper material layer is releasably laminated on the heat insulating layer via a hot melt adhesive. 12. A base layer in which a hot melt adhesive is supplied from an upper and lower supply section to upper and lower application rollers which face each other vertically, and the supplied hot melt adhesive is conveyed by reverse rotation of the upper and lower application rollers. After applying the same hot melt adhesive on the upper and lower surfaces of the base layer coated with the hot melt adhesive and then on the upper and lower surfaces of the base layer coated with the hot melt adhesive, the coating layers are respectively bonded to obtain a composite material. In the method of manufacturing a material, when supplying the hot melt adhesive from the supply roller to the upper and lower coating rollers, the hot melt adhesive longer than the roller surface of the upper coating roller is supplied to the roller surface of the lower coating roller. Apply the hot melt adhesive to the exposed area before applying it to the base layer, and apply the hot melt adhesive to the upper and lower surfaces of the base layer with the upper and lower application rollers. At this time, the hot melt adhesive applied to the lower surface of the base layer is preheated before the application, and the temperature of the hot melt adhesive applied to the upper and lower surfaces of the base layer is adjusted to be substantially the same. Method. 13. The upper and lower supply parts are composed of upper and lower storage parts respectively storing hot melt adhesives, and upper and lower supply rollers supplying the hot melt adhesives from these upper and lower storage parts to the upper and lower coating rollers. When the adhesive is preheated before being applied to the lower surface of the base layer, a hot melt adhesive stored in the lower storage portion by a heater, or a hot melt adhesive on the roller surface of the lower supply roller or the lower coating roller The method for producing a composite material according to claim 13, wherein the composite material is heated.