Patent classifications
D04H1/492
Cotendered nonwoven/pulp fabric and method for making the same
The present invention is directed to a nonwoven fabric made from a composite of nonwoven and pulp where the nonwoven has a high loft derived from a heat set three-dimensional relief structure and/or hydroengorged fiber structure. A nonwoven web is hydraulically treated to create a hydroengorged material having an increased loft. Alternatively a nonwoven web is treated to have a heat set three-dimensional relief structure. The treated web is then hydroentangled with pulp to form a cotendered nonwoven/pulp composite fabric.
Cotendered nonwoven/pulp fabric and method for making the same
The present invention is directed to a nonwoven fabric made from a composite of nonwoven and pulp where the nonwoven has a high loft derived from a heat set three-dimensional relief structure and/or hydroengorged fiber structure. A nonwoven web is hydraulically treated to create a hydroengorged material having an increased loft. Alternatively a nonwoven web is treated to have a heat set three-dimensional relief structure. The treated web is then hydroentangled with pulp to form a cotendered nonwoven/pulp composite fabric.
Entangled substrate of short individualized bast fibers
Nonwoven textile fabrics in accordance with the present invention include a web of entangled polymeric fibers with substantially pectin-free, individualized bast fibers having a mean length less than 9 millimeters (mm). A method of making a nonwoven fabric includes forming a web of polymeric fibers, forming a randomly arrayed fiber web of the substantially individualized bast fibers having a mean length less than 9 mm, disposing the web of the substantially individualized bast fibers onto the web of polymeric fibers, and entangling the polymeric fibers with the substantially individualized bast fibers to form the nonwoven fabric. In addition, laminates include the nonwoven fabric, a film, and an adhesive disposed between the fabric and the film to bond the nonwoven fabric to the film.
Entangled substrate of short individualized bast fibers
Nonwoven textile fabrics in accordance with the present invention include a web of entangled polymeric fibers with substantially pectin-free, individualized bast fibers having a mean length less than 9 millimeters (mm). A method of making a nonwoven fabric includes forming a web of polymeric fibers, forming a randomly arrayed fiber web of the substantially individualized bast fibers having a mean length less than 9 mm, disposing the web of the substantially individualized bast fibers onto the web of polymeric fibers, and entangling the polymeric fibers with the substantially individualized bast fibers to form the nonwoven fabric. In addition, laminates include the nonwoven fabric, a film, and an adhesive disposed between the fabric and the film to bond the nonwoven fabric to the film.
Cellulosic fibers having enhanced reversible thermal properties and methods of forming thereof
A cellulosic fiber includes a fiber body including a cellulosic material and non-encapsulated phase change material dispersed within the cellulosic material. The non-encapsulated phase change material forms a plurality of distinct domains dispersed within the cellulosic material. The non-encapsulated phase change material has a latent heat of at least 40 Joules per gram and the cellulosic fiber has a latent heat between 9.8 Joules per gram and 132 Joules per gram and a transition temperature in the range of 0 C. to 100 C., and cellulosic fiber provides thermal regulation based on at least one of absorption and release of the latent heat at the transition temperature.
Cellulosic fibers having enhanced reversible thermal properties and methods of forming thereof
A cellulosic fiber includes a fiber body including a cellulosic material and non-encapsulated phase change material dispersed within the cellulosic material. The non-encapsulated phase change material forms a plurality of distinct domains dispersed within the cellulosic material. The non-encapsulated phase change material has a latent heat of at least 40 Joules per gram and the cellulosic fiber has a latent heat between 9.8 Joules per gram and 132 Joules per gram and a transition temperature in the range of 0 C. to 100 C., and cellulosic fiber provides thermal regulation based on at least one of absorption and release of the latent heat at the transition temperature.
SYSTEMS AND METHODS FOR AIR ENTANGLEMENT
A loom system for making a fibrous preform may comprise a base, a bedplate coupled to the base, wherein the bedplate is configured to rotate about an axis of rotation, and an air entangling module coupled to the base. The air entangling module may comprise an air entangling head coupled to an outer support and an inner support, wherein the air entangling head is configured to apply a jet of air toward the bedplate at an entangling zone. The air entangling head may have freedom of motion along the outer support and the inner support, and may be configured to rest on top of a fibrous layer.
METHOD OF MAKING A HYDROFORMED COMPOSITE MATERIAL
A method for hydroforming a composite precursor material includes forming a composite precursor material comprising an original spun bonded nonwoven web and a polymer film layer. The method also includes applying a plurality of pressurized liquid jets onto an outer surface of the original spun bonded nonwoven web while the composite precursor material passes over a forming structure to push and reorient a plurality of spun bonded fibers from a closely packed substantially horizontal orientation to a more loosely packed orientation with greater vertical spacing between the fibers to produce a hydroformed composite material comprising an expanded spun bonded nonwoven layer having a loft of at least about 1.3 times greater than the original loft of the original spun bonded nonwoven web, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web.
METHOD OF MAKING A HYDROFORMED COMPOSITE MATERIAL
A method for hydroforming a composite precursor material includes forming a composite precursor material comprising an original spun bonded nonwoven web and a polymer film layer. The method also includes applying a plurality of pressurized liquid jets onto an outer surface of the original spun bonded nonwoven web while the composite precursor material passes over a forming structure to push and reorient a plurality of spun bonded fibers from a closely packed substantially horizontal orientation to a more loosely packed orientation with greater vertical spacing between the fibers to produce a hydroformed composite material comprising an expanded spun bonded nonwoven layer having a loft of at least about 1.3 times greater than the original loft of the original spun bonded nonwoven web, and an air permeability of at least about 1.2 times greater than an original air permeability of the original unexpanded spun bonded nonwoven web.
Liquid-retaining sheet and facial mask
A liquid-retaining sheet contains a liquid-retaining layer that is able to absorb a liquid component, and the liquid-retaining layer is formed from a nonwoven structural member containing a transparent fiber. In the liquid-retaining sheet, the transparency shown below is adjusted to not more than 0.27.
Transparency=Whiteness (%) of a sheet impregnated with 700% by mass of water relative to the sheet mass/Basis weight (g/m.sup.2) The transparent fiber may contain a cellulose-series fiber substantially free from a carboxyl group (in particular, a regenerated cellulose fiber such as a solvent-spinning cellulose-series fiber). The proportion of the solvent-spinning cellulose-series fiber may be not less than 30% by mass in the transparent fiber. The liquid-retaining sheet may be a skin care sheet (in particular, a facial mask) that is impregnated with a liquid component containing a cosmetic preparation. The liquid-retaining sheet has an improved transparency in a wet state in spite of a nonwoven structural member contained in the sheet and shows a suitable strength in a wet state.