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US 2018/0002851 A1Published application
Weldable spunbond fabric, method of making same, and packaging made therefrom
AssigneeReifenhaeuser GmbH & Co. KG Maschinenfabrik
InventorsClaudio Cinquemani, Alexander Klein
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Abstract
A weldable spun-bonded nonwoven has endless filaments of a thermoplastic plastic that contain at least 3 wt % of at least one filler to improve the weldability of the spun-bonded nonwoven. In addition the endless filaments are monocomponent filaments.
Claims19
A weldable spun-bonded nonwoven, wherein
- the spun-bonded nonwoven has endless filaments of a thermoplastic plastic,
- the endless filaments contain at least 3 wt % of at least one filler to improve the weldability of the spun-bonded nonwoven, and
- the endless filaments are monocomponent filaments.
A weldable spun-bonded nonwoven, wherein
- the spun-bonded nonwoven contains endless filaments of a thermoplastic plastic,
- the endless filaments are multicomponent filaments, and
- at least one component of these endless filaments contains at least 3 wt % of at least one filler to improve the weldability of the spun-bonded nonwoven by reducing the welding temperature in thermal welding of the spun-bonded nonwoven.
The weldable spun-bonded nonwoven according to 2, wherein the filler is a metal salt, preferably an alkaline earth metal salt.
A spun-bonded nonwoven, wherein
- the spun-bonded nonwoven is formed wholly of endless bicomponent filaments of at least one thermoplastic plastic and each having a core and a sheath, and
- the sheaths each contain at least 3 wt % of at least one filler that lowers the melting point of the sheath below that of the cores.
Dependencies are inferred from the claim text.