Fibrous structures that exhibit a novel combination of properties and to methods for making such fibrous structures are provided.

Fibrous structures and methods for making same

Disclosed are water-dispersible fibers derived from sulfopolyesters having a Tg of at least 25° C. The fibers may contain a single sulfopolyester or a blend of a sulfopolyester with a water-dispersible or water-nondispersible polymer. Also disclosed are multicomponent fibers comprising a water dispersible sulfopolyester having a Tg of at least 57° C. and a water non-dispersible polymer. The multicomponent fibers may be used to produce microdenier fibers. Fibrous articles may be produced from the water-dispersible fibers, multicomponent fibers, and microdenier fibers. The fibrous articles include water-dispersible and microdenier nonwoven webs, fabrics, and multilayered articles such as wipes, gauze, tissue, diapers, panty liners, sanitary napkins, bandages, and surgical dressings. Also disclosed is a process for water-dispersible fibers, nonwoven fabrics, and microdenier webs. The fibers and fibrous articles have further applications in flushable personal care and cleaning products, disposable protective outerwear, and laminating binders.

Water-dispersible and multicomponent fibers from sulfopolyesters

A water non-dispersible polymer microfiber is provided comprising at least one water non-dispersible polymer wherein the water non-dispersible polymer microfiber has an equivalent diameter of less than 5 microns and length of less than 25 millimeters. A process for producing water non-dispersible polymer microfibers is also provided, the process comprising: a) cutting a multicomponent fiber into cut multicomponent fibers; b) contacting a fiber-containing feedstock with water to produce a fiber mix slurry; wherein the fiber-containing feedstock comprises cut multicomponent fibers; c) heating the fiber mix slurry to produce a heated fiber mix slurry; d) optionally, mixing the fiber mix slurry in a shearing zone; e) removing at least a portion of the sulfopolyester from the multicomponent fiber to produce a slurry mixture comprising a sulfopolyester dispersion and water non-dispersible polymer microfibers; and f) separating the water non-dispersible polymer microfibers from the slurry mixture. A process for producing a nonwoven article is also provided.

Nonwovens produced from multicomponent fibers

The present invention provides a nonwoven web prepared from multicomponent fibers which are partially split. The partially split multicomponent fibers have at least one component of the multicomponent fiber separated from the remaining components of the multicomponent fiber along a first section of the longitudinal length of the multicomponent fibers. Along a second section of the longitudinal length of the multicomponent fibers the components of the multicomponent fibers remain together as a unitary fiber structure. In addition, part of the second section of the multicomponent fibers is bonded to part of a second section of an adjacent multicomponent fiber.

Nonwoven web and filter media containing partially split multicomponent fibers

A paper or nonwoven article is provided comprising a nonwoven web layer, wherein the nonwoven web layer comprises a plurality of fibers and a plurality of binder microfibers, wherein the binder microfibers comprise a water non-dispersible, synthetic polymer; wherein the binder microfibers have a length of less than 25 millimeters and a fineness of less than 0.5 d/f; and wherein the binder microfibers have a melting temperature that is less than the melting temperature of the fibers.

Paper and nonwoven articles comprising synthetic microfiber binders

A nonwoven material consisting of a mixture containing continuous filaments and short fibres, the continuous filaments being substantially mechanically bonded to each other due to entangling of fibres and filaments. The continuous filaments in the material have a projected coverage of at least 1.1 and not more than 1.7. The invention also relates to a method of manufacturing such a nonwoven material.

Composite nonwoven material containing continuous filaments and short fibres

The invention relates to a method for manufacturing a microfibre material and to a microfibre material manufactured by means of hydraulic entanglement The method comprises to form a fibre web containing microfibres and, thereafter, to subject the fibre web to hydraulic entanglement At least a majority of the microfibres are provided in the form of microfibres having been streched to orientation and having shell surfaces substantially completely covered by a hydropholic lubricating layer The method further comprises to disperse the microfibres in a foamed aqueous medium before the forming by means of the hydrophilic lubricating layer in interaction with the foamed aqueous medium in order to form a substantially homogenous fibre dispersion, wherein the microfibres in a straightened condition have a fibre thickness smaller than 05 denier and a fibre length larger than 5 mm both in the fibre dispersion and in the microfibre material In the microfibre material a majority of the microfibres are streched to orientation, exhibit a cross-sectional shape which substantially can be described by an arc or several successive arcs, and are uniformly distributed in a x, y-plane of the microfibre material

Hydroentangled microfibre material and method for its manufacture

The present invention refers to an embossed composite nonwoven web material comprising a mixture of thermally unbonded continuous spunlaid filaments and short fibers comprising natural and/or synthetic fibers or staple fibers, the continuous filaments and short fibers being substantially mechanically bonded to each other by hydroentangling and the composite nonwoven web material is embossed without thermobonds to have a strength index equal to or more than 1 time the strength index of the unembossed composite nonwoven web material.

An embossed composite nonwoven web material

A disintegrable moist wipe or hygiene tissue comprising a hydraulically entangled nonwoven material having a plurality of material weakenings (21) extending as a continuous line in MD, wherein the basis weight of the nonwoven material is lower in the weakenings than in the surrounding areas. The material weakenings (21) have a width less than 1 mm and are located with a distance between 10 and 40 mm from each other. A method for manufacturing the disintegrable wipe or hygiene tissue comprises hydroentangling a fibrous web in a hydroentangling station comprising at least one jet strip (16) having a plurality of jet orifices (17) therein, wherein the inlet diameter (d) of the jet orifices varies along the length of the jet strip (16) so that jet orifices (17) with a spacing of 10 to 40 mm therebetween have a larger inlet diameter (d) than the rest of the jet orifices having a smaller inlet diameter. Alternatively the hydroentangling station comprises at least one conventional jet strip having jet orifices with a relatively smaller inlet diameter (d) and further comprises at least one subsequent jet strip having jet orifices with a relatively larger inlet diameter (d), wherein the jet orifices of the subsequent jet strip are arranged with a spacing of 10 to 40 mm there between.

Disintegrable hydroentangled moist wipe or hygiene tissue and method for producing it

The present invention relates toafibrous structure exhibitingan absorbency time of equal to or less than 1.5 s and exhibiting an antimicrobial effect.

Fibrous structure exhibiting an antimicrobial effect

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