D01F2/10

METHOD FOR THE MANUFACTURE OF ANTIBACTERIAL VISCOSE FILAMENT RAYON AND A PRODUCT OBTAINED USING THAT METHOD

The antibacterial viscose rayon, according to the invention, is used for the manufacture of any type of textile articles, including items intended for medical use, ensuring a more lasting antibacterial and antifungal protection due to the uniform distribution of the antibacterial additive throughout the entire volume of the fibre. According to the invention, immediately before spinning, the viscose is mixed and homogenized with an antibacterial additive, and then spun following the classical procedure: the viscose solution, with required and strictly specified parameters is fed under pressure to the spinnerets of the spinning machine from which the cellulose solution enters a spin bath, where as a result of the chemical reactions in course is transformed into fibres subjected afterwards to a subsequent treatment. According to the invention, in the production of dope dyed antibacterial rayon, into the preliminarily prepared suspension composed of one or a couple of pigments, a specified amount of antibacterial additive is introduced, the obtained mix is homogenized and filtered, and then subjected to the classical stages of spinning and subsequent treatments.

Multifunctional viscose fiber and preparation method therefor

Provided is a multifunctional viscose fiber comprising viscose fibers, graphene and nanosilver, wherein the nanosilver is loaded on the graphene in situ. Provided is a method for preparing multifunctional viscose fibers including: a) dispersing graphene in an aqueous solution to obtain a graphene dispersion solution, b) dissolving a silver salt into the graphene dispersion solution, and adding a reducing agent to perform a reduction reaction to obtain a nanosilver-loaded graphene dispersion solution, and c) uniformly mixing the nanosilver-loaded graphene dispersion solution with a viscose solution, and performing spinning to obtain the multifunctional viscose fibers. Experimental results show that as compared to viscose fibers with no nanosilver-loaded graphene added, the multifunctional viscose fibers have a far infrared temperature increase performance increased by not less than 100%, an ultraviolet protecting coefficient increased by not less than 70%, and an antibacterial activity reaching 99.9% and increased by not less than 100%.

Multifunctional viscose fiber and preparation method therefor

Provided is a multifunctional viscose fiber comprising viscose fibers, graphene and nanosilver, wherein the nanosilver is loaded on the graphene in situ. Provided is a method for preparing multifunctional viscose fibers including: a) dispersing graphene in an aqueous solution to obtain a graphene dispersion solution, b) dissolving a silver salt into the graphene dispersion solution, and adding a reducing agent to perform a reduction reaction to obtain a nanosilver-loaded graphene dispersion solution, and c) uniformly mixing the nanosilver-loaded graphene dispersion solution with a viscose solution, and performing spinning to obtain the multifunctional viscose fibers. Experimental results show that as compared to viscose fibers with no nanosilver-loaded graphene added, the multifunctional viscose fibers have a far infrared temperature increase performance increased by not less than 100%, an ultraviolet protecting coefficient increased by not less than 70%, and an antibacterial activity reaching 99.9% and increased by not less than 100%.

USE OF A VISCOSE FIBER
20200002859 · 2020-01-02 ·

The present invention relates to the use of a viscose fibre for the production of a transparent cosmetic mask. The use according to the invention is characterized in that the viscose fibre is a flat fibre, the cross section of the viscose fibre has a width-to-thickness ratio of 6:1 to 30:1, and the titre of the viscose fibre ranges from 1.0 dtex to 4 dtex.

USE OF A VISCOSE FIBER
20200002859 · 2020-01-02 ·

The present invention relates to the use of a viscose fibre for the production of a transparent cosmetic mask. The use according to the invention is characterized in that the viscose fibre is a flat fibre, the cross section of the viscose fibre has a width-to-thickness ratio of 6:1 to 30:1, and the titre of the viscose fibre ranges from 1.0 dtex to 4 dtex.

Washable flame retardant viscose fabric

The disclosure discloses a washable flame retardant viscose fabric. The viscose fabric includes a flame retardant viscose fiber; and a method of preparing the viscose fiber includes the following steps: impregnation, squeezing, ageing, yellowing, addition before spinning, spinning, bundling, drafting, cutting off, first washing, desulfurization, second washing, pickling, third washing, application of oil bath, drying, and packaging. Before spinning, an aqueous dispersion of flame retardant, an aqueous dispersion of hyperbranched nanocellulose and a dispersant are uniformly added to a spinning glue using a pre-spinning injection system. During the production of the flame retardant viscose used, the aqueous dispersion of flame retardant, the aqueous dispersion of hyperbranched nanocellulose and the dispersant are introduced into the spinning glue by the pre-spinning injection system before spinning, so that the flame retardant has a high residual rate in the subsequent coagulation bath.

Washable flame retardant viscose fabric

The disclosure discloses a washable flame retardant viscose fabric. The viscose fabric includes a flame retardant viscose fiber; and a method of preparing the viscose fiber includes the following steps: impregnation, squeezing, ageing, yellowing, addition before spinning, spinning, bundling, drafting, cutting off, first washing, desulfurization, second washing, pickling, third washing, application of oil bath, drying, and packaging. Before spinning, an aqueous dispersion of flame retardant, an aqueous dispersion of hyperbranched nanocellulose and a dispersant are uniformly added to a spinning glue using a pre-spinning injection system. During the production of the flame retardant viscose used, the aqueous dispersion of flame retardant, the aqueous dispersion of hyperbranched nanocellulose and the dispersant are introduced into the spinning glue by the pre-spinning injection system before spinning, so that the flame retardant has a high residual rate in the subsequent coagulation bath.

Charcoal-infused towel
11982024 · 2024-05-14 ·

A charcoal-infused towel product is woven from a combination of charcoal-infused yarn fibers and cotton yarn fibers. The charcoal-infused yarn fibers are made by combining a liquefied activated charcoal paste with a liquefied cellulose paste to produce filaments of textile fiber embedded with activated charcoal.

Charcoal-infused towel
11982024 · 2024-05-14 ·

A charcoal-infused towel product is woven from a combination of charcoal-infused yarn fibers and cotton yarn fibers. The charcoal-infused yarn fibers are made by combining a liquefied activated charcoal paste with a liquefied cellulose paste to produce filaments of textile fiber embedded with activated charcoal.

Anti-counterfeiting lyocell fiber, preparation method thereof and anti-counterfeiting method

The present invention provides a preparation method of an anti-counterfeiting lyocell fiber, including the following steps: dissolving at least one amino acid metal chelate and a cellulose pulp in an aqueous solution of a cellosolve to obtain a spinning solution, and then performing wet spinning using the spinning solution to obtain an anti-counterfeiting lyocell fiber, wherein the amino acid metal chelate account for 0.2% to 0.6% of the total mass of the anti-counterfeiting lyocell fiber. The anti-counterfeiting lyocell fiber of the present invention uses an amino acid metal chelate for encryption, and the process is simple. The prepared product can be provided with one or two passwords based on the ratio of metal ions and the amino acids, so that the product prepared from this fiber has the advantages of memory tracking properties, identification function and high anti-counterfeiting capability grade.