JP2012225389A5 - - Google Patents

Description

To achieve the above object, the manufacturing method of the vacuum heat insulating material according to the first of the present invention, by overlapping a fiber aggregate formed by laminating without using a binder fiber material in the thickness direction of single wall or a plurality of layers Vacuum insulation comprising: a core material comprising: an adsorbent that adsorbs moisture and gas components of the core material; an inner bag that houses the core material and the adsorbent; and an outer bag that houses the inner bag. A method of manufacturing a material, the compression step of compressing the core material so as to be in a predetermined first density range, and the core material being predetermined in a state of being held in a second density range lower than the first density range A cutting step of cutting into the outer dimensions, an inner bag packaging step of sealing the core material with the inner bag while maintaining the second density range in the cutting step, and a core sealed with the inner bag on the outer bag A bagging step for inserting a material, and the core released from sealing of the inner bag Comprising a vacuum packaging process is evacuated sealed with said outer bag being maintained at the second density range.

Vacuum heat insulating material according to a second aspect of the present invention, a core formed by a laminated fiber aggregate superimposed single layer or plural layers without using a binder fiber material in the thickness direction, the moisture of the core material and an adsorbent for adsorbing gas components, and the bag inner housing and said adsorbent and said core material, a vacuum heat insulating material comprising an outer bag for accommodating the inner bag therein, Tokoro said core member and compressed so that the first density range of the constant, the cut into a predetermined outer dimensions while maintaining the lower second density range than the first density range, holding the second density range at the time of cutting The core material sealed with the inner bag is inserted into the outer bag to release the sealing of the inner bag while maintaining the second density range, and is evacuated and sealed with the outer bag. It has stopped.

The refrigerator according to the third aspect of the present invention includes the vacuum heat insulating material according to the second aspect of the present invention.

Claims (6)

A core formed by a laminated fiber aggregate superimposed single layer or plural layers without using a binder fiber material in the thickness direction, an adsorbent which adsorbs moisture and gas components of the core material, the core A vacuum heat insulating material manufacturing method comprising an inner bag for storing a material and the adsorbent, and an outer bag for storing the inner bag therein,
A compression step of compressing the core material to a predetermined first density range;
A cutting step of cutting the core material into a predetermined outer dimension in a state of being held in a second density range lower than the first density range;
An inner bag packaging step for sealing the core material with the inner bag while maintaining the second density range in the cutting step;
A bagging step of inserting a core material sealed with the inner bag into the outer bag;
A vacuum packaging step of evacuating and sealing the outer core with the outer bag after the core material released from the sealing of the inner bag is held in the second density range. The inner bag is provided with easy-seal release means that is easy to release the seal in a part of the welded portion that forms the seal,
The method for producing a vacuum heat insulating material according to claim 1, further comprising: a seal release step for releasing the seal of the inner bag between the bag filling step and the vacuum packaging step. A core formed by a laminated fiber aggregate superimposed single layer or plural layers without using a binder fiber material in the thickness direction, an adsorbent which adsorbs moisture and gas components of the core material, the core A vacuum heat insulating material comprising an inner bag for storing the material and the adsorbent, and an outer bag for storing the inner bag therein,
And compressed so that the first density range of Jo Tokoro the core material, cut into a predetermined outer dimensions while maintaining the lower second density range than the first density range, the first at the time of cutting 2 The core material sealed with the inner bag while maintaining the density range is inserted into the outer bag to release the sealing of the inner bag while maintaining the second density range, and evacuated. A vacuum heat insulating material characterized by being sealed with the outer bag. 4. The vacuum heat insulating material according to claim 3 , wherein easy sealing release means is provided in a part of the welded portion of the inner bag, which is easy to cut when the seal is released. Wherein the first density range is 280~370kg / ^{m 3,} the vacuum heat insulating material according to claim 3 or claim 4 second density range is characterized by a 140~260kg / ^{m 3.} Refrigerator having a vacuum heat insulating material according to claims 3 to any one of claims 5.