Skin foam-in-place foamed article and production method thereof
AssigneeInoac Corporation
InventorTakayuki YOKOTA
Life of this patent
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Abstract
There is provided a skin foam-in-place foamed article comprising a pad (15) and a bag-like outer material (20) covering the pad (15). The outer material (20) has a top layer (21) and a liner layer (22) made of a foamed resin. The liner layer (22) has a closed cell structure. A pad-side skin layer (27a) having a density higher than that of a bulk layer (26) is provided on the liner layer (22), on a side of the pad (15). A corona treatment is applied to the pad-side skin layer (27a).
Claims8
A skin foam-in-place foamed article comprising:
- a pad made of a foamed resin;
- and
- a bag-like outer material that is integrated with the pad and covers the pad,
- wherein the outer material comprises:
- a top layer;
- and a liner layer made of a foamed resin, which is integrated with the top layer,
- the liner layer made of a foamed resin has a closed cell structure,
- the liner layer made of a foamed resin comprise a pad-side skin layer having a density higher than that of a bulk layer, on a side of the pad, and
- a corona treatment is applied to the pad-side skin layer.
A method of producing a skin foam-in-place foamed article comprising a pad made of a foamed resin, and a bag-like outer material integrated with the pad and covering the pad, the method comprising, in this order:
- forming a sheet-like liner layer with a foamed resin having a closed cell structure, in which a skin layer having a density higher than that of a bulk layer is formed on each of a front surface and a rear surface;
- subjecting the skin layer positioned on the rear surface to a corona treatment;
- bonding a top layer to the front surface of the liner layer to obtain the outer material;
- processing the outer material into a bag shape so that the liner layer is on an inside;
- and
- injecting a liquid foamed resin material into the inside of the bag-like outer material and foaming and curing the foamed resin material to obtain the pad.
Dependencies are inferred from the claim text.