Embodiments of the present disclosure relate generally to methods and systems for bleaching textiles using ozone gas. Embodiments also incorporate a color removal step. In one example, there is provided a hybrid machine that incorporates certain features of a washer, but that also includes an integrated blower for gas distribution inside the machine. There is also provided an ozone dosing control system that allows for maintenance of a constant concentration of ozone in the machine. In one embodiment, the ozone output measured in grams/hour at this constant concentration in conjunction with the weight of product measured being treated may be referred to as the bleaching factor. There is further provided a drain sump design that helps minimize water volume in the presence of fabric lint, various added materials, and other processing chemicals.

Methods and devices for providing moisture in an ozonation process applied to textile products. Unlike other existing moistening methods the invention relates to process of moistening which is provided by means of spraying water by an ultrasonic atomizer and supplying into enclosed volume in micro droplets and production of super oxide radicals with O.sub.3.

Methods and devices for providing moisture in an ozonation process applied to textile products. Unlike other existing moistening methods the invention relates to process of moistening which is provided by means of spraying water by an ultrasonic atomizer and supplying into enclosed volume in micro droplets and production of super oxide radicals with O.sub.3.

A damage process for a textile product may include, but is not limited to, irradiating a laser beam onto a surface region of a textile product which is dyed, to burn the surface region, exposing the textile product to an ozone gas; and agitating the textile product together with at least one of: pieces of one or more solid materials having uneven surfaces and one or more abrasives of artificial fibers to allow the surface region to be shaved by the at least one of: the pieces of one or more solid materials and the one or more abrasives of artificial fibers. One or more subsequent processes can be carried out, without dipping the textile product into water or a liquid of chemicals, after agitating the textile product and until softening the textile product.

A damage process for a textile product may include, but is not limited to, irradiating a laser beam onto a surface region of a textile product which is dyed, to burn the surface region, exposing the textile product to an ozone gas; and agitating the textile product together with at least one of: pieces of one or more solid materials having uneven surfaces and one or more abrasives of artificial fibers to allow the surface region to be shaved by the at least one of: the pieces of one or more solid materials and the one or more abrasives of artificial fibers. One or more subsequent processes can be carried out, without dipping the textile product into water or a liquid of chemicals, after agitating the textile product and until softening the textile product.

Embodiments relate generally to methods and systems for bleaching textiles using ozone gas that incorporates a color removal step. In one example, there is provided a hybrid machine that incorporates certain features of a washer, but that also includes an integrated blower for gas distribution inside the machine. There is also provided an ozone dosing control system that allows for maintenance of a constant concentration of ozone in the machine. In one embodiment, the ozone output measured in grams/hour at this constant concentration in conjunction with the weight of product measured being treated may be referred to as the bleaching factor. There is further provided a wastewater dye removal step, in which ozone is used to clean the water and remove dyes and other colors that may be deposited via denim or other garments.

Embodiments relate generally to methods and systems for bleaching textiles using ozone gas that incorporates a color removal step. In one example, there is provided a hybrid machine that incorporates certain features of a washer, but that also includes an integrated blower for gas distribution inside the machine. There is also provided an ozone dosing control system that allows for maintenance of a constant concentration of ozone in the machine. In one embodiment, the ozone output measured in grams/hour at this constant concentration in conjunction with the weight of product measured being treated may be referred to as the bleaching factor. There is further provided a wastewater dye removal step, in which ozone is used to clean the water and remove dyes and other colors that may be deposited via denim or other garments.

Apparatus (200) for the treatment of one or more substrates comprising a treatment chamber configured to receive a liquid medium and one or more substrates; a supply of a treatment gas comprising ozone; and one or more conduits to convey said treatment gas to a bubble generator (41) wherein said bubble generator is operable to form bubbles of said treatment gas in said liquid medium, wherein the apparatus comprises a multiplicity of solid particles (46). A method of treating one or more substrates, the method comprising agitating said one or more substrates in a treatment formulation comprising a multiplicity of solid particles, a liquid medium and bubbles of ozone.

Apparatus (200) for the treatment of one or more substrates comprising a treatment chamber configured to receive a liquid medium and one or more substrates; a supply of a treatment gas comprising ozone; and one or more conduits to convey said treatment gas to a bubble generator (41) wherein said bubble generator is operable to form bubbles of said treatment gas in said liquid medium, wherein the apparatus comprises a multiplicity of solid particles (46). A method of treating one or more substrates, the method comprising agitating said one or more substrates in a treatment formulation comprising a multiplicity of solid particles, a liquid medium and bubbles of ozone.

The present invention discloses means, and systems utilizable in a method for converting post-consumer cellulose-containing (e.g., cotton) textile waste (ctPCR) to nanocellulose, derivatives, and products thereof, comprising steps as follows: grinding said ctPCT; suspending the ground ctPCR in basic pH hydrophilic slurry; and exposing the same to ozone gas.