Low linting, high absorbency, high strength wipes composed of micro and nanofibers
OwnerWalter Chappas, Walter Chappasinventors
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Abstract
A wipe having at least one nanofiber layer including an commingled configuration providing low linting, low pilling and high liquid absorbency and method of making same is described. A nanofiber layer is configured from a commingled nanofiber precursor layer of micro- or macrofibers that is subjected to splittable, friable or chemical methods to provide the nanofiber layer. Multiple layer wipes including a commingled nanofiber layer web produced from a commingled nanofiber precursor layer and micro- or macrofiber layer are also described.
Claims41
A method of forming a low linting, low pilling, high absorbency wipe comprising the steps of:
- providing at least one nanofiber precursor fiber layer;
- commingling the nanofiber precursor fibers of the at least one nanofiber precursor fiber layer;
- and
- converting at least 20% of the nanofiber precursor fiber to nanofibers of a diameter less than 900 nanometers by a splitting, fracturing or chemical process.
A wipe comprising:
- at least one layer including nanofibers with diameters less than 900 nanometers made by a method comprising the steps of:
- providing at least one nanofiber precursor fiber layer;
- commingling the nanofiber precursor fibers of the at least one nanofiber precursor fiber layer;
- and
- converting at least about 20% by weight of the nanofiber precursor fibers to nanofibers of a diameter less than 900 nanometers by a splitting, fracturing or chemical process.
A wipe having a surface and an interior, comprising:
- at least one knitted, woven, or nonwoven layer comprising nanofibers, the nanofibers having diameters less than about 900 nanometers, wherein the wipe has a mean pore diameter of at least 25 microns.
A wipe comprising:
- a single knitted, woven or nonwoven layer comprising two or more pluralities of fiber diameter distributions wherein at least one plurality of fiber diameter distributions has an mean fiber diameter of less than about 900 nanometers, and
- wherein the wipe has a mean pore diameter of at least 25 microns.
Dependencies are inferred from the claim text.