The present invention relates to a light safety shoe (1), comprising:an upper (2); a sole (3) made by means of injection molding directly onto said upper (2); a safety toecap (4) placed at the toe of the shoe (1);a anti-puncture sheet (9) housed in said sole (3);a functional insert (7) placed within said sole (3), below said anti-puncture sheet (9). According to the invention, the light safety shoe (1) has, with reference to a European size 42, a weight lower or equal to 400 grams.

Provided are a method for producing a drawn conjugated fiber, capable of producing a conjugated fiber having a high strength and a thin fineness, and a drawn conjugated fiber. A drawn conjugated fiber is produced by performing a spinning step of obtaining an undrawn fiber having a core-sheath structure in which a core material is a resin containing, as a main component, a crystalline propylene polymer and a sheath material is a resin containing, as a main component, an olefin polymer having a melting point lower than that of the core material, by means of melt-spinning (step S1); and a drawing step of drawing the undrawn fiber (step S2).

Provided are a method for producing a drawn conjugated fiber, capable of producing a conjugated fiber having a high strength and a thin fineness, and a drawn conjugated fiber. A drawn conjugated fiber is produced by performing a spinning step of obtaining an undrawn fiber having a core-sheath structure in which a core material is a resin containing, as a main component, a crystalline propylene polymer and a sheath material is a resin containing, as a main component, an olefin polymer having a melting point lower than that of the core material, by means of melt-spinning (step S1); and a drawing step of drawing the undrawn fiber (step S2).

The invention relates to nonwoven fabric sheets containing crimped multicomponent fibers.

Systems, devices and methods are provided for producing a product comprising a filter media, such as a gas or liquid filter. A feed system for conveying nanoparticles comprises a container for receiving clusters of nanoparticles and one or more vibration elements coupled to the container and configured to pulse the clusters of nanoparticles to convey the clusters of nanoparticles through the container. The feed system further comprises one or more components for converting the clusters of nanoparticles into a group of nanoparticles having a smaller mass or volume than the cluster of nanoparticles. The system both conveys and breaks down the clusters of nanoparticles, allowing them to be transported from the bulk bin to the filter manufacturing apparatus to form a filter media with improved quality and yield and reduced cost and time. In addition, the system is scalable and produces filter media with less variation.

Systems, devices and methods are provided for producing a product comprising a filter media, such as a gas or liquid filter. A feed system for conveying nanoparticles comprises a container for receiving clusters of nanoparticles and one or more vibration elements coupled to the container and configured to pulse the clusters of nanoparticles to convey the clusters of nanoparticles through the container. The feed system further comprises one or more components for converting the clusters of nanoparticles into a group of nanoparticles having a smaller mass or volume than the cluster of nanoparticles. The system both conveys and breaks down the clusters of nanoparticles, allowing them to be transported from the bulk bin to the filter manufacturing apparatus to form a filter media with improved quality and yield and reduced cost and time. In addition, the system is scalable and produces filter media with less variation.

Processes for making fibrous structures and more particularly processes for making fibrous structures comprising filaments are provided.

Processes for making fibrous structures and more particularly processes for making fibrous structures comprising filaments are provided.

Nonwoven fabrics may be fashioned as topical delivery systems with increased and controllable rate of product release, while still possessing the requisite strength and durability for mass production and distribution. Such delivery systems comprise fabrics that are fashioned from micro-denier fibers that are produced by fibrillating bicomponent island-in-the-sea fibers. Facial masks made from these fabrics can achieve adequate product delivery in 3-5 minutes or less.

A method of preparing an electret by saturating a nonwoven fabric with a liquid, such as water, and removing the liquid via suction to generate charges by friction between the fabric fibers and the liquid is described. The saturating can be carried out, for example, by impinging the bottom side of the fabric with a jet or jets of water while the fabric is being pulled under a solid roller. Excess water can also be applied during a water quenching step of a meltblowing or spunbonding process. An apparatus for preparing an electret according to the presently disclosed methods is also described.