JPH0114865B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a core material for heat insulating building materials and a method for manufacturing the same, and relates to a core material for heat insulating building materials and a method for manufacturing the same. A transparent synthetic resin film is loaded into the core 3 so that the transparent synthetic resin film 4 has a wavy cross section along the space b of the core 3, and the upper end of the transparent synthetic resin film 4 having a wavy cross section and The specified invention is a core material for a heat insulating building material, characterized in that the lower ends are respectively bonded to a plastic film 1, and the plastic film 1 is made of a synthetic resin film with an aluminum layer laminated on one side, with the synthetic resin film side facing the core material. A core 3 such as a roll core, a honeycomb core, a ring core, etc. is placed on top of the core 3, and then a transparent synthetic resin film 4 is placed on the core 3, and the transparent synthetic resin film 4 is placed on top of the core 1 by vacuum suction. The lower end of the wavy transparent synthetic resin film 4 is made wavy in cross section along the space b, and the pack film 1 is heat-sealed. 3, the upper end of the wavy transparent synthetic resin film 4 and the pack film 1 are heat-sealed, and the edges of the upper and lower pack films 1 are heat-sealed and sealed. The combined invention relates to a method for manufacturing core materials for insulating building materials.

For core material A′ of conventional insulation building materials, the first
As shown in the figure, a paper core 3 such as a roll core, honeycomb core, ring core, etc.
It was formed by sealing it. However, in such a conventional example, the adhesion between the core 3 and the pack film 1 is poor, resulting in a gap a as shown in FIG. The drawback was that the insulation performance deteriorated.

The present invention has been made in view of the above points, and the object of the present invention is to provide a core material for an insulating building material that can prevent air convection, prevent convective heat transfer, and improve heat insulation properties, and a method for manufacturing the same. is to provide.

The present invention will be explained in detail below with reference to Examples. Reference numeral 1 is a film for a pack in which an aluminum layer is laminated by vapor-depositing aluminum or pasting aluminum foil on one side of a synthetic resin film. The synthetic resin film of the pack film 1 may be a shrink film such as a stretched synthetic resin film. This pack film 1 is placed horizontally with the synthetic resin film side facing upward, and a paper core 3 such as a roll core, honeycomb core, ring core, etc. is placed thereon. A transparent synthetic resin film 4 is placed on this core 3 as shown in FIG. 3, and by vacuum suction, the transparent synthetic resin film 4 is made to have a wavy cross section along the space b of the core 3, and the transparent synthetic resin film 4 has a wavy cross section. The lower end of the film 4 and the pack film 1 are heat-sealed. Next, another pack film 1 is laminated on top of the core 3 with the synthetic resin film facing down, and the upper end of the transparent synthetic resin film 4 with a wavy cross section is heat-sealed to the pack film 1 to form the upper and lower packs. The edges of the film 1 are heat-sealed together, and the core 3 is sealed inside the bag 2 of the film 1 for packing. The core material A is formed as described above, and the upper and lower plates are joined to the upper and lower surfaces of the core material A to form a heat insulating building material.

As described above, in the present invention, cores such as roll cores, honeycomb cores, ring cores, etc. are housed inside a bag formed from a plastic film made of a plastic film with an aluminum layer laminated on one side, so that the aluminum layer does not radiate heat. Not only does it have heat insulating properties, but the core is loaded with a transparent synthetic resin film so that the transparent synthetic resin film has a wavy cross section along the core space, and the upper and lower ends of the transparent synthetic resin film with a wavy cross section are used for packing. Since it is bonded to the film, the core and the pack film bag are fixed by the transparent synthetic resin film, making it strong, and the air in each space inside the core is confined, preventing heat transfer due to convection, providing insulation. Furthermore, it is possible to form multiple airtight independent spaces in the vertical and horizontal directions, and air does not flow between adjacent independent spaces, further improving insulation properties. It has the advantage of being possible. In addition, in the combined invention of the present invention, since it is formed by the method described above, the core material of the insulation building material can be manufactured continuously, and moreover, the transparent synthetic resin film is formed along the space of the core by vacuum suction. Since the cross section is wave-like, there is an advantage that the transparent synthetic resin film can be easily arranged along the core space.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a conventional example, Fig. 2 is a cross-sectional view showing drawbacks of the conventional example, and Figs. 3, 4, and 5 are for manufacturing a core material of an insulating building material according to an embodiment of the present invention. 1 is a cross-sectional view showing the process, 1 is a pack film;
2 is a bag, 3 is a core, and 4 is a transparent synthetic resin film.

Claims (1)

[Scope of Claims] 1. A core such as a roll core, honeycomb core, ring core, etc. is placed inside a bag formed from a plastic film with an aluminum layer laminated on one side of the plastic film, and a transparent synthetic resin film is transparently synthesized in the core. A core material for a heat-insulating building material, characterized in that a resin film is loaded so as to have a wavy cross-section along the space of the core, and the upper and lower ends of the transparent synthetic resin film having a wavy cross-section are joined to a pack film, respectively. 2. A pack film made by laminating an aluminum layer on one side of a synthetic resin film is placed with the synthetic resin film side facing up, and a roll core is placed on top of this film.
A core such as a honeycomb core or a ring core is placed, and then a transparent synthetic resin film is placed on the core, and vacuum suction is applied to make the transparent synthetic resin film have a wavy cross section along the core space. Heat-seal the lower end and the pack film,
After that, another pack film is placed on the core with the synthetic resin film side facing down, and the upper end of the wavy transparent synthetic resin film and the pack film are heat-sealed, and the upper and lower pack films are A method for producing a core material for an insulating building material, characterized by heat-sealing the edges together.