A piezoelectric thread that includes a core thread; and a piezoelectric film wound around the core thread. The piezoelectric thread is constructed to generate a charge by energy imparted from outside of the piezoelectric thread.

An antibacterial yarn that includes a core yarn including a functional polymer that generates a charge by external energy and a first sheath yarn higher in hygroscopicity than the core yarn, the first sheath yarn covering at least a part of a periphery of the core yarn across an axial direction of the core yarn.

A yarn may include at least one filament formed from a polymer composition comprising: a polymer at an amount ranging from 95 wt % to 99.99 wt %; a carbon-based nanomaterial at an amount ranging from 0.01 wt % to 5 wt %. A method may include melt spinning a polymer composition to produce a yarn, where the polymer composition includes a polymer at an amount ranging from 95 wt % to 99.99 wt %; a carbon-based nanomaterial at an amount ranging from 0.01 wt % to 5 wt %.

Provided is a textile made of filament yarn comprising a polymer composition that is durable and reusable having permanent or near-permanent antiviral properties and that includes a polymer, a metal ion, preferably a zinc and/or copper ion, and an optional phosphorus compound, wherein fibers and/or fabric formed from the polymer composition demonstrate antiviral properties and wherein the polymer is hygroscopic. The present disclosure also describes methods of forming the polymer compositions and methods of preparing fibers from the polymer composition.

A sterile knitted fabric is provided. The sterile knitted fabric is made by the following steps: First, a plurality of nano far infrared antibacterial yarns and a plurality of bamboo charcoal hollow yarns are provided. Next, the nano far infrared antibacterial yarns are interwoven with the bamboo charcoal hollow yarn by a circular knitting machine to form a grey fabric. Next, the grey fabric is through a scouring process to form a scoured fabric. Next, the scoured fabric is through a setting process. The scoured fabric is moved 25 meters per minute for the setting process.

Resorbable implants comprising poly(butylene succinate) and copolymers thereof have been developed. The implants implants are preferably sterilized, and contain less than 20 endotoxin units per device as determined by the limulus amebocyte lysate (LAL) assay, and are particularly suitable for use in procedures where prolonged strength retention is necessary, and can include one or more bioactive agents. The implants may be made from fibers and meshes of poly(butylene succinate) and copolymers thereof, or by 3d printing, and the fibers may be oriented. Coverings and receptacles made from forms of poly(butylene succinate) and copolymers thereof have also been developed for use with cardiac rhythm management devices and other implantable devices. These coverings and receptacles may be used to hold, or partially/fully cover, devices such as pacemakers and neurostimulators. The coverings and receptacles are made from meshes, webs, lattices, non-wovens, films, fibers, and foams, and contain antibiotics such as rifampin and minocycline.

A basketball net includes a multi-layer cord including each of an outer layer formed of a first antimicrobial, moisture wicking fiber and an inner layer including a second antimicrobial, moisture wicking fiber. The outer layer is woven from a first antimicrobial, moisture wicking yarn to form a wall that defines a central opening, and at least one cord is located within the central opening, the at least one cord formed by a second antimicrobial, moisture wicking yarn. The at least one cord includes a plurality of cords including a first cord formed by the second antimicrobial, moisture wicking yarn and a second cord including a third antimicrobial, moisture wicking yarn. The plurality of cords includes: the first cord; the second cord including the third antimicrobial, moisture wicking yarn and at least one monofiber yarn; and a third cord formed by a plurality of monofiber yarns.

A polymeric yarn composition having antimicrobial and/or antibacterial properties includes: (i) an herbal masterbatch, and (ii) a base polymer. The base polymer may include one of polybutylene terephthalate (PBT) or polyethylene terephthalate (PET), or polyamides, or polypropylene. Further, the herbal masterbatch may include: (a) an herbal component includes Neem or Turmeric or extract or combination thereof, and (b) a carrier polymer. The carrier polymer may be the same as the base polymer and may include one of: PBT, PET, polyamides or polypropylene. To make a polymeric yarn, the herbal masterbatch and the base polymer may be melted and extruded together to obtain the polymeric yarn having the herbal component in a range of 0.01% to 10% by weight of the polymeric yarn.

A method for manufacturing antibacterial copper nanofiber yarn includes steps of: raw material mixing operation and spinning operation, where the raw material mixing operation is to mix dry copper nanopowder having a particle size of no more than 48 nm with fiber slurry; and the spinning operation includes the following steps: mixing and stirring the copper nanopowder and the fiber slurry so that the copper nanopowder is uniformly distributed in the fiber slurry to prepare a mixed material; drying the mixed material; hot-melt drawing the mixed material, i.e. drawing out yarn with the dried mixed material through a drawing machine to form first-stage yarn; stretching and extending, i.e. passing the first-stage yarn through a plurality of rollers to stretch the first-stage yarn; naturally air-cooling the first-stage yarn to form second-stage yarn; and collecting yarn, i.e. collecting the second-stage yarn to fabricate an antibacterial copper nanofiber yarn finished product.

A copper ion-complexed poly gamma-glutamic acid (γ-PGA)/chitosan (CS)/cotton blended antibacterial knitted fabric and a preparation method includes chitosan that is crosslinked with poly gamma-glutamic acid, then a copper-ammonia complex ion solution is added to prepare a spinning solution. The spinning solution is wet spun and then stretched, washed with water, finished, washed with water, and dried to get copper ion-complexed poly gamma-glutamic acid/chitosan composite fibers. The blended antibacterial knitted fabric is then prepared by using cotton fiber yarns and the composite fibers. There is a very high coordination coefficient between carboxyl groups of gamma-PGA and amino groups of CS, so the structure is stable. Poly-gamma glutamic acid can be used as water-retaining agent and heavy metal ion adsorbent, which can increase the loading rate of copper ions.