A method of fabricating a thermally insulating stretchable down feather sheet is described. The core of the sheet is comprised of down mixed with a binder mixture which exhibits elastic properties. The binder mixture consists of heat fusible stretchable glue particles and heat fusible elastomeric binding strands in dry form. The core is sandwiched between a bottom and a top stretchable elastomeric sheet having multi-directional stretchability. The core of down and the binder as well as the elastomeric sheet are bound together by heat treatment to provide a down insulating sheet which is stretchable in all directions without fractioning the sheet and which is capable of recovering substantially its original relaxed form after stretching or deformation.
Method of fabricating a thermally insulating stretchable down feather sheet and the product therefrom
27.08.2019
Patent
Elektronische Ressource
Englisch
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / A47G Haushalt- oder Tafelausstattung , HOUSEHOLD OR TABLE EQUIPMENT / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / D04H Herstellen von flächigem Textilgut, z.B. aus Fasern oder fadenförmigem Material , MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL |
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