B32B5/067

PROTECTIVE COMPOSITE FABRICS AND METHODS OF MANUFACTURE AND USE
20240116265 · 2024-04-11 · ·

A composite fabric includes a film, a first fibrous layer, a fabric layer, and a second fibrous layer and one or more retaining members. The film has a first side and a second side. The first fibrous layer has a first side connected to the second side of the film and a second side. The fabric layer has a first side connected to the second side of the first fibrous layer and a second side. The second fibrous layer has a first side connected to the second side of the fabric layer and a second side. The film can be a non-heat shrinking film. The retaining members may be configured to contact a surface on which the composite fabric is placed and resist movement of the composite fabric relative to the surface where the retaining members include a corrosion inhibitor.

WET SHEET FOR CLEANING
20190274512 · 2019-09-12 · ·

A wet sheet for cleaning includes multiple layers and is impregnated with a chemical solution. The wet sheet includes hydrophobic fiber layers arranged in a front surface layer and a back surface layer, and a hydrophilic fiber layer arranged in an intermediate layer. The hydrophobic fiber layers have an interlaced part with a high fiber density where the hydrophobic fiber layers are interlaced with the hydrophilic fiber layer. The interlaced part has at least one slightly interlaced part and at least one highly interlaced part which is formed in a dent shape and which is interlaced with a higher fiber density. The highly interlaced part is formed in an area ratio of 10 to 20% to an area of the front surface layer or the back surface layer. Static friction resistance of the wet sheet for cleaning is lower than kinetic friction resistance of the wet sheet for cleaning.

HYDROENTANGLED COMPOSITE FABRIC

The present disclosure relates to a hydroentangled composite fabric and a method of making such a hydroentangled composite fabric. In one embodiment, a method for making a hydroentangled composite fabric is disclosed. The method comprises forming a first web of nonwoven fibers using a first carding machine; forming a second web of nonwoven fibers using a second carding machine; combining the first web of nonwoven fibers and the second web of nonwoven fibers into a final web of nonwoven fibers; and entangling the final web of nonwoven fibers with a woven fabric using a plurality of water jets, wherein the water jets are applied at a pressure of 75 to 400 bars.

Multilayered nonwoven fabric containing submicron fibers, a method of manufacture, an apparatus, and articles made from multilayered nonwoven fabrics
12098488 · 2024-09-24 ·

This document presents a novel method of manufacturing multilayered nonwoven fabrics consisting of submicron fibers, hydroentangled, meltfibrillated, and/or spunlaid web layers. The composite multilayered webs contain one or more submicron fiber webs placed between inner and outer layers of hydroentangled, meltfibrillated, and/or spunlaid web, forming a fabric that may be utilized in the manufacture of articles which serve as barriers, wipes or sorbent materials, or may have other potential applications. The created novel composite multilayered fabric may have increased loft, softness and bending length, may not be solely dependent upon an electrostatic charge to repel small particles and microbes, and may be formed from a broad selection of natural, synthetic, and recycled polymers, including petroleum- and plant-based, allowing polymer selection based on article lifecycle.

Installation and method for producing a single- or multi-layer nonwoven

An installation and a method for selectively producing a single-ply or alternatively a multi-ply nonwoven includes an inclined wire former configured to deposit a sheet of wet-laid fibre material on a first circulating belt, a further belt configured to receive the sheet of wet-laid fibre material from the first circulating belt, a roller card arranged downstream in the material transport direction and configured to introduce a roller card web into the installation, a hydroentanglement arranged downstream in the material transport direction and including at least one water beam configured to entangle, bond and/or structure a single sheet of fibres or a plurality of sheets of fibres, and a dryer arranged downstream in the material transport direction.

PROTECTIVE COMPOSITE FABRICS AND METHODS OF MANUFACTURE AND USE
20240399705 · 2024-12-05 · ·

A composite fabric includes a film having a first side and a second sides, a first fibrous layer having a first side facing the second side of the film and a second side, a fabric layer having a first side facing the second side of the first fibrous layer and a second side, a second fibrous layer having a first side facing the second side of the fabric layer and a second side, and a plurality of retaining members connected to and extending away from the second side of the second fibrous layer, the plurality of retaining members configured to contact a surface on which the composite fabric is placed to resist movement of the composite fabric relative to the surface and such that the second side of the fibrous layer is entirely spaced from the surface.

METHODS OF BONDING THAT EMPLOY PREHEATING

Methods and devices for bonding a plurality of substrates in a nip provided between an anvil and a bonding device may involve preheating a portion of a first substrate for a preheating duration to impart a preheated temperature, and then conveying the plurality of substrates to the nip to form a bond. The portion of the first substrate may reach the nip at a final temperature that is within 0 C. to 40 C. of the preheated temperature. A time-in-nip to create the bond may be less than 20 milliseconds. The preheating duration may be at least 200% longer than the time-in-nip. Laminate materials formed via such methods and devices may include unbonded areas in the nonwoven material that may have at least 5 fibers per square inch that are fused at fiber-to-fiber intersections caused by preheating the nonwoven material.

WET WIPES HAVING LAYERED NONWOVEN SUBSTRATES AND METHODS OF MAKING THE SAME

Wet wipes having layered nonwoven substrates and methods of making the same are provided. The layered nonwoven substrate has a first outer layer including a first plurality of fibers and forming at least a part of a first outer surface, a second outer layer including a second plurality of fibers and forming at least a port of a second outer surface opposite the first outer surface, and an inner layer including a third plurality of fibers and disposed at least partially between the first outer layer and the second outer layer. At least a portion of the third plurality of fibers is disposed on one of the first outer surface or the second outer surface. The wet wipes also include a lotion comprising at least 90% by weight of the lotion of water.

Acquisition distribution layer

Acquisition-distribution-layers (ADL) comprising a hydroentangled composite are provided. The hydroentangled composite includes (a) a first outer layer including a first plurality of synthetic fibers, (b) a second outer layer including a second plurality of synthetic fibers, and (c) at least one core layer including cellulose fibers comprising natural cellulose fibers, synthetic cellulose fibers, or a combination thereof, in which the at least one core layer is located directly or indirectly between the first outer layer and the second outer layer. The first plurality of synthetic fibers, the second plurality of synthetic fibers, and the cellulose fibers are physically entangled together. The hydroentangled composite further comprises a three-dimensional topography defined by a first outermost surface of the hydroentangled composite, in which the three-dimensional topography includes a plurality raised portions and a plurality of recessed portions.

Composite nonwoven sheet material

A composite nonwoven sheet material includes pulp fibers, a reinforcement material and microfibers. The sheet material has one pulp-enriched first outer layer and one microfiber-enriched second outer layer, the reinforcement material is thereby interposed between the pulp-enriched first outer layer and the microfiber-enriched second outer layer and the pulp fibers and the microfibers penetrate the reinforcement material. Also disclosed is a process of producing such composite nonwoven sheet material and the use of such composite nonwoven sheet material.