Production of glass fiber heat insulating material for folded board

Abstract

PURPOSE: To obtain the subject heat insulating material, excellent in fire resistance and incombustibility and good in finished appearance, by covering both sides of a matlike material of glass fibers with nonwoven fabrics, needle punching the covered matlike material, bonding organic fibers with the nonwoven fabric on the other surface by heating and simultaneously crimping penetrating organic fiber bundles in the inner layer part. CONSTITUTION: Nonwoven fabrics 2 and 3 of drawable organic fibers (optimally polyester, PP, etc.,) are present on the surface of a matlike material of opened and chopped glass fibers 1 and processing of needle punching is carried out so as to pass organic fibers constituting the nonwoven fabrics 2 and 3 through the mat layer and project from the opposite surface while being drawn. The organic fibers (2a) and (3a) projected to the surface are melted by heating and bonded to the nonwoven fabric 2 and 3 of the organic fibers on the opposite surface. The penetrating organic fibers in the inner layer part are simultaneously crimped to press and densify the mat in the thickness direction and afford the aimed heat insulating material. COPYRIGHT: (C)1989,JPO&Japio

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Cited By (11)

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    DE-19935408-A1February 08, 2001Johns Manville Int IncTwo or three layer laminates of synthetic non-woven fabric and woven glass fabric or scrim, for use in bituminized roofing webs and sealing membranes, in which the layers are bonded by needling and consolidated with a binder
    DE-19935408-B4April 22, 2004Johns Manville International, Inc., DenverMehrlagenschichtstoff
    JP-2013502516-AJanuary 24, 2013ショマラート,ジルベールガラスストランドの平行なロービングを含む強化材
    JP-H0578967-AMarch 30, 1993Toray Ind Inc, 東レ株式会社Heat insulating inorganic fiber mat
    US-5872067-AFebruary 16, 1999Ppg Industries, Inc.Glass fiber strand mats, thermoplastic composites reinforced with the same and methods for making the same
    US-6412154-B1July 02, 2002Johns Manville International, Inc.Hydrodynamically bounded carrier webs and use thereof
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    US-7351673-B1April 01, 2008Johns ManvilleLaminates including two or more layers of organic synthetic filament non-wovens and glass fiber webs and scrims
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