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US 11,441,252 B2Granted
Microfiber-containing nonwoven fabrics
AssigneeBerry Global, Inc.
InventorsDionne Pots, Matthijs Van Hunen, James Taylor
Life of this patent
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Abstract
Nonwoven fabrics including (i) continuous fibers and (ii) a blend of staple fibers comprising polyester staple fibers, bicomponent staple fibers, microfiber staple fibers, and wettable staple fibers, in which the continuous fibers are mechanically entangled with the blend of staple fibers. The continuous fibers and the blend of staple fibers may be mechanically entangled via a hydroentangling process.
Claims20
A nonwoven fabric, comprising:
- (i) continuous fibers;
- and
- (ii) a blend of staple fibers comprising (a) polyester staple fibers, (b) bicomponent staple fibers substantially devoid of micro-pores, micro-channels, or both, (c) microfiber staple fibers having a plurality of micro-pores and/or micro-channels defined by a plurality of split portions having a decitex (dtex) value of less than 1 dtex, and (d) wettable staple fibers;
- wherein the continuous fibers are mechanically entangled with the blend of staple fibers to define the nonwoven fabric.
1 more element
A cleaning system, comprising:
- (i) a cleaning implement including a mop frame;
- and
- (ii) a nonwoven fabric comprising (a) continuous fibers;
- and (b) a blend of staple fibers;
- wherein the blend of staple fibers comprises (1) of polyester staple fibers, (2) bicomponent staple fibers substantially devoid of micro-pores, micro-channels, or both, (3) microfiber staple fibers having a plurality of micro-pores and/or micro-channels defined by a plurality of split portions having a decitex (dtex) value of less than 1 dtex, and (4) wettable staple fibers;
- wherein the continuous fibers are mechanically entangled with the blend of staple fibers to define the nonwoven fabric.
3 more elements
A method of forming a nonwoven fabric, comprising:
- (i) forming or providing a web of continuous fibers having a top surface;
- (ii) forming or providing a carded web comprising a blend of staple fibers comprising (a) polyester staple fibers, (b) bicomponent staple fibers, (c) microfiber staple fibers, and (d) wettable staple fibers;
- (iii) positioning the carded web directly or indirectly onto the top surface of the web of continuous filaments;
- and
- (iii) mechanically entangling the carded web with the continuous fibers to define a nonwoven fabric.
2 more elements
Dependencies are inferred from the claim text.