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A highly reliable vacuum heat insulating material having excellent processability, usability and heat insulating performance and a heat insulating box using the vacuum heat insulating material are provided. A vacuum heat insulating material related to the present invention includes: a core material structured by a laminated structure of an organic fiber assembly formed by forming an organic fiber into a sheet shape and cutting an end face with a predetermined length, and having a core material opening portion formed by a through hole or a notch with cutt...
A highly reliable vacuum heat insulating material having excellent processability, usability and heat insulating performance and a heat insulating box using the vacuum heat insulating material are provided. A vacuum heat insulating material related to the present invention includes: a core material structured by a laminated structure of an organic fiber assembly formed by forming an organic fiber into a sheet shape and cutting an end face with a predetermined length, and having a core material opening portion formed by a through hole or a notch with cutting; a gas-barrier outer cover material containing the core material inside, having a sealing portion for sealing surrounding of the sheet-shaped organic fiber assembly and surrounding of the core material opening portion, and hermetically sealing an inside with almost vacuum status by sealing the sealing portion; and an outer cover material opening portion provided at the outer cover material under a status in which the sealing portion provided at the surrounding of the sheet-shaped organic fiber assembly and the surrounding of the core material opening portion is sealed, being a through hole or a notch which is smaller than the core material opening portion with a sealed amount, and a long fiber being equal to or longer than a length of the sheet is used for the organic fiber.
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1. A vacuum heat insulating material comprising: a core material structured by a laminated structure of an organic fiber assembly made by forming an organic fiber into a sheet, having a cutting portion where an end face is cut so as to be a predetermined length; anda gas-barrier outer cover material containing the core material inside, and having a sealing portion for sealing surrounding the cutting portion in a range being larger than the cutting portion of the core material with an amount of sealing length, wherein an inside of the outer cover material...
1. A vacuum heat insulating material comprising: a core material structured by a laminated structure of an organic fiber assembly made by forming an organic fiber into a sheet, having a cutting portion where an end face is cut so as to be a predetermined length; anda gas-barrier outer cover material containing the core material inside, and having a sealing portion for sealing surrounding the cutting portion in a range being larger than the cutting portion of the core material with an amount of sealing length, wherein an inside of the outer cover material is hermetically sealed at almost vacuum state by sealing the sealing portion of the outer cover material,wherein a long fiber being equal to or longer than a length of the core material is used for the organic fiber,wherein the organic fiber assembly is formed in a sheet by applying heat deposition on continuous organic fiber,wherein a fabric weight of a non-woven cloth which is the organic fiber assembly is at least 4.7 g/m2 and no more than 198 g/m2, andwherein the heat deposited portion penetrates from a front surface to a rear surface of the organic fiber assembly. 2. The vacuum heat insulating material of claim 1, wherein a thickness of the organic fiber assembly is, when the organic fiber assembly is contained inside of the gas-barrier outer cover material at an almost vacuum state, at least 3 times and no more than 18 times of a diameter of the organic fiber. 3. The vacuum heat insulating material of claim 1, wherein the organic fiber assembly is formed in a sheet by applying heat deposition on continuous organic fiber, andwherein an area of the heat deposited portion is made no more than 20% of an area of the sheet. 4. The vacuum heat insulating material of claim 3, wherein the heat deposited portion is provided with a through hole or a concave portion which is smaller than a size of the heat deposited portion. 5. The vacuum heat insulating material of claim 1, wherein a fabric weight of a non-woven cloth which is the organic fiber assembly is at least 85 g/m2 and no more than 198 g/m2. 6. The vacuum heat insulating material of claim 1, wherein a cross sectional shape of a fiber forming the organic fiber assembly is made a modified cross sectional shape. 7. The vacuum heat insulating material of claim 1, wherein a plurality of types of core material having different fabric weights are mixed and laminated. 8. The vacuum heat insulating material of claim 1, wherein the core material is formed by a first organic fiber assembly folded and laminated and a second organic fiber assembly folded and laminated, andwherein the first organic fiber assembly and the second organic fiber assembly are folded so as to intersect each other. 9. The vacuum heat insulating material of claim 1, wherein the organic fiber is continuous in a length direction or a width direction of the organic fiber assembly. 10. The vacuum heat insulating material of claim 1, wherein an organic fiber of the organic fiber assembly is one of polyester, polystyrene, polypropylene, polylactate, aramid, and liquid crystalline polymer. 11. A heat insulating box comprising: an external box; andan internal box arranged inside of the external box, wherein the vacuum heat insulating material of claim 1 is provided at either of a gap on a surface of the external box between the external box and the internal box, a gap on a surface of the external box between the external box and the internal box, and a gap on a surface of the internal box between the external box and the internal box. 12. The heat insulating box of claim 11, wherein a spacer is provided between the external box and the vacuum heat insulating material. 13. A refrigerator provided with the vacuum heat insulating material of claim 1 on a storage room door or a heat insulating wall between a machine room containing a compressor and a cooler room containing a cooler generating cold air. 14. The refrigerator of claim 13, wherein the vacuum heat insulating material is provided with an opening portion, andwherein the opening portion is arranged at a position of a piping connecting the compressor and the cooler so that the piping passes through the vacuum heat insulating material. 15. A refrigerating/air-conditioning apparatus comprising: an outdoor unit having a cabinet having an almost rectangular cubic shape, a partition wall for partitioning inside of the cabinet into a fan room containing a fan and a machine room containing a compressor, and the vacuum heat insulating material of claim 1 provided at, at least a part of an inside or an outside of the machine room. 16. A water heater comprising: a cabinet; anda hot water tank, for reserving water or hot water, and contained in the cabinet, wherein all or at least a part of inside wall of the cabinet is provided with the vacuum heat insulating material of claim 1. 17. An equipment comprising: a container, wherein surrounding of the container is provided with the vacuum heat insulating material of claim 1 in which a long fibered organic fiber having a length being equal to or longer than a length of the core material is used. 18. An equipment including a refrigeration cycle displaying an overall view or a partial view such as a cross section, a development view, a cubic diagram and, a perspective view of the equipment on a rear surface or a side surface of a body of the equipment, and further displaying a provided position of the vacuum heat insulating material of claim 1 in either of the overall view or the partial view. 19. A vacuum heat insulating material comprising: a core material structured by a laminated structure of an organic fiber assembly made by forming an organic fiber into a sheet, having a cutting portion where an end face is cut so as to be a predetermined length; anda gas-barrier outer cover material containing the core material inside, and having a sealing portion for sealing surrounding the cutting portion in a range being larger than the cutting portion of the core material with an amount of sealing length, wherein an inside of the outer cover material is hermetically sealed at almost vacuum state by sealing the sealing portion of the outer cover material,wherein a long fiber being equal to or longer than a length of the core material is used for the organic fiber,wherein the organic fiber assembly is formed in a sheet by applying heat deposition on continuous organic fiber,wherein a fabric weight of a non-woven cloth which is the organic fiber assembly is at least 4.7 g/m2 and no more than 100 g/m2, andwherein the heat deposited portion does not penetrate from a front surface to a rear surface of the organic fiber assembly. 20. The vacuum heat insulating material of claim 19, wherein a thickness of the organic fiber assembly is, when the organic fiber assembly is contained inside of the gas-barrier outer cover material at an almost vacuum state, at least 3 times and no more than 18 times of a diameter of the organic fiber. 21. The vacuum heat insulating material of claim 19, wherein the organic fiber assembly is formed in a sheet-shape by applying heat deposition on continuous organic fiber, andwherein an area of the heat deposited portion is made no more than 20% of an area of the sheet. 22. The vacuum heat insulating material of claim 21, wherein the heat deposited portion is provided with a through hole or a concave portion which is smaller than a size of the heat deposited portion. 23. The vacuum heat insulating material of claim 19, wherein a fabric weight of a non-woven cloth which is the organic fiber assembly is at least 85 g/m2 and no more than 198 g/m2. 24. The vacuum heat insulating material of claim 19, wherein a cross sectional shape of a fiber forming the organic fiber assembly is made a modified cross sectional shape. 25. The vacuum heat insulating material of claim 19, wherein a plurality of types of core material having different fabric weights are mixed and laminated. 26. The vacuum heat insulating material of claim 19, wherein the core material is formed by a first organic fiber assembly folded and laminated and a second organic fiber assembly folded and laminated, andwherein the first organic fiber assembly and the second organic fiber assembly are folded so as to intersect each other. 27. The vacuum heat insulating material of claim 19, wherein the organic fiber is continuous in a length direction or a width direction of the organic fiber assembly. 28. The vacuum heat insulating material of claim 19, wherein an organic fiber of the organic fiber assembly is one of polyester, polystyrene, polypropylene, polylactate, aramid, and liquid crystalline polymer. 29. A heat insulating box comprising: an external box; andan internal box arranged inside of the external box, wherein the vacuum heat insulating material of claim 19 is provided at either of a gap on a surface of the external box between the external box and the internal box, a gap on a surface of the external box between the external box and the internal box, and a gap on a surface of the internal box between the external box and the internal box. 30. The heat insulating box of claim 29, wherein a spacer is provided between the external box and the vacuum heat insulating material. 31. A refrigerator provided with the vacuum heat insulating material of claim 19 on a storage room door or a heat insulating wall between a machine room containing a compressor and a cooler room containing a cooler generating cold air. 32. The refrigerator of claim 31, wherein the vacuum heat insulating material is provided with an opening portion, andwherein the opening portion is arranged at a position of a piping connecting the compressor and the cooler so that the piping passes through the vacuum heat insulating material. 33. A refrigerating/air-conditioning apparatus comprising: an outdoor unit having a cabinet having an almost rectangular cubic shape, a partition wall for partitioning inside of the cabinet into a fan room containing a fan and a machine room containing a compressor, and the vacuum heat insulating material of claim 19 provided at least a part of an inside or an outside of the machine room. 34. A water heater comprising: a cabinet; anda hot water tank, for reserving water or hot water, and contained in the cabinet, wherein all or at least a part of inside wall of the cabinet is provided with the vacuum heat insulating material of claim 19. 35. An equipment comprising: a container, wherein surrounding of the container is provided with the vacuum heat insulating material of claim 19 in which a long fibered organic fiber having a length being equal to or longer than a length of the core material is used. 36. An equipment including a refrigeration cycle displaying an overall view or a partial view such as a cross section, a development view, a cubic diagram, and a perspective view of the equipment on a rear surface or a side surface of a body of the equipment, and further displaying a provided position of the vacuum heat insulating material of claim 19 in either of the overall view or the partial view.
