Methods of treating fibers comprising a polymer including at least one of a vinyl acetate moiety or a vinyl alcohol moiety, and resulting fibers or the products comprising the resulting fibers are disclosed. In an example embodiment, a fiber having a surface region and an interior region, includes a polymer comprising at least one of a vinyl acetate moiety or a vinyl alcohol moiety chemically modified with a modification agent. The fiber has a transverse cross-section including the interior region comprising the polymer having a first degree of modification and the surface region comprising the polymer having a second degree of modification greater than the first degree of modification.

A fiber sheet of the present disclosure includes: a first fiber layer including a plurality of first fibers, the plurality of first fibers comprising a thermoplastic polymer and arranged side by side in a first direction; a second fiber layer including a plurality of second fibers, the plurality of second fibers comprising a thermoplastic polymer and arranged side by side in a second direction intersecting the first direction, and disposed to face the first fiber layer; and a nanofiber layer including nanofibers, the nanofibers comprising any one of a thermoplastic polymer, a thermosetting polymer, a biodegradable polymer, and a biological polymer, the nanofiber layer disposed to be in contact with the first fiber layer and the second fiber layer, in which the nanofiber layer is heat-welded to the first fiber layer and the second fiber layer.

A water activated tape and method of producing is provided, the tape comprising a repulpable material, a water-soluble material affixed to the repulpable material, and a water activated adhesive layer affixed to the water-soluble material.

Methods of treating fibers comprising a polymer including at least one of a vinyl acetate moiety or a vinyl alcohol moiety, and resulting fibers or the products comprising the resulting fibers are disclosed. In an example embodiment, a method of treating fibers includes contacting a surface of a fiber comprising the polymer with a modification agent to chemically modify at least a portion of the polymer with the modification agent in a region of the fiber comprising at least the surface of the fiber to form a modified fiber.

The present disclosure provides adhesive articles that can be removed from surfaces without damage by having reduced or eliminated contribution of a core backing to peel force generated by the adhesive during removal. In some instances, this can be accomplished by a core that loses structural integrity in a direction normal to a plane defined by a major surface. In other instances, the contribution is reduced by compromising the interface between the core and a peelable adhesive layer.

A method of forming a shipping container includes mixing paper fibers with a binder fiber to form a mixture; disposing the mixture onto a surface to form a layer of the mixture; applying heat to form a paper fiber batt from the mixture having a fixed width and fixed length; and inserting the paper fiber batt within an interior of a corrugated box.

Layered fibrous structures, and more particularly layered fibrous structures containing two or more layers of fibrous elements, for example filaments, that exhibit different physical characteristics, such as different Elongation at Rupture values as measured according to the Elongation at Rupture Test Method described herein, and/or pilling, and/or dry lint scores, sanitary tissue products comprising such layered fibrous structures, and methods for making same.

The present disclosure provides a cover or sleeve for use with a sterilization container comprising a collapsible enclosure configured to conform to the shape and size of the sterilization container. The collapsible enclosure includes an inner layer configured to withstand a sterilization procedure and a protective layer bonded to the inner layer. The protective layer is configured to protect the inner layer and to withstand the sterilization procedure. The enclosure further comprises a scalable opening for receiving the sterilization container within the interior of the enclosure. The collapsible enclosure is universally adapted for use for a variety of validated sterilization methods, such as steam, hydrogen peroxide, gas plasma, ozone, ethylene oxide and the like and with various sterilization trays, baskets and the like.

Provided is filtration member for use in a filtration device, said filtration member comprising a layer of woven or nonwoven fabric having two primary surfaces and a layer of chemically functionalized graphite flakes deposited on at least one of the two primary surfaces or embedded in the layer of woven or nonwoven fabric, wherein said graphite flakes comprise chemical function contain 1%-50% by weight of a non-carbon element selected from O, N, H, F, Cl, Br, I, or a combination thereof. Also provided is a face mask comprising: (a) a mask body configured to cover at least wearer's mouth and nose; and (b) a fastener to hold the mask in place on the wearer's face; wherein the mask body includes (i) an air-permeable outer layer, (ii) an inner layer located on a wearer's side when the mask is worn, and (iii) the filtration member comprising graphite flakes.

Disclosed is an artificial leather base material including: a non-woven fabric that is an entangle body of fibers (A) and fibers (B); and an elastic polymer applied inside the non-woven fabric, wherein the fibers (A) are crimped fibers that are formed from two types of resins with intrinsic viscosities different from each other, and that are filaments of 0.6 dtex or more, and the fibers (B) are ultrafine fibers of less than 0.6 dtex.