Articles (102) are formed of materials which have at least one layer (12) comprising a mixture of thermoplastic and other fibres. This latter layer (12) may be thermobonded together and then densified along at least a section of the eventual peripheral edge margin of an article (102) to be formed from the material. Thermoplastic material containing cover sheets (24, 56) may also be secured to the core (12) and densified in this manner. The entire eventual peripheral edge margin of the article (102) is typically densified. The material is cut within the densified region or slightly outside the densified region to provide a soft peripheral edge. Absorbent materials may be thermobonded within the layer (12) and surrounded by a densified edge to fix them within the article (102). The composite materials are used in manufacturing infant car seat liners and other articles. In addition, sections of the material may be densified and provided with weakened areas, such as perforations, to enable users to selectively separate the articles along the perforations.
申请公布号
WO8910109(A1)
申请公布日期
1989.11.02
申请号
WO1989US01569
申请日期
1989.04.12
申请人
WEYERHAEUSER COMPANY
发明人
REDFORD, DOUGLAS, E.;PERDELWITZ, LEE, E., JR.;IFF, RON, H.;GADDIS, PAUL, G.;HALLEY, DAVID, G.;COTIE, MICHAEL, E.;HANKE, DAVID, E.;NEOGI, AMAR, N.