A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) adding one or more color concentrates to the flakes; (E) passing the group of flakes through an extrusion system while maintaining the pressure within the extrusion system below about 25 millibars; (F) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (G) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET.

The invention relates to the technical field of textile printing and dyeing, in particular to a method for preparing yarn with cloud dyeing effect; dyes with more than one color are mixed, and a small amount of dispersing agent is added, so that the pigment is not completely uniformly mixed, and the yarn obtained by extrusion molding of the pigment mixed spinning raw material has a randomly distributed multi-color cloud dyeing effect, and the cloud dyeing yarn with multi-color cloud dyeing effect is prepared, and compared with the cloth blank prepared by the traditional single-color yarn, the prepared cloth blank has a more three-dimensional pattern effect.

In one aspect, the invention relates to recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same. In a further aspect, the invention relates to homogenized post-consumer polyethylene terephthalate. In a further aspect, the invention relates to extruded polymer compositions, polymer mixtures, fibers, and/or Bulked Continuous Filament fibers comprising post-consumer polyethylene terephthalate. In a further aspect, the invention relates to processes for preparing recycled polyethylene terephthalate compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

In one aspect, the invention relates to recycled polyethylene terephthalate compositions, fibers and articles produced therefrom, and methods for producing same. In a further aspect, the invention relates to homogenized post-consumer polyethylene terephthalate. In a further aspect, the invention relates to extruded polymer compositions, polymer mixtures, fibers, and/or Bulked Continuous Filament fibers comprising post-consumer polyethylene terephthalate. In a further aspect, the invention relates to processes for preparing recycled polyethylene terephthalate compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

The invention relates to the technical field of textile printing and dyeing, in particular to a method for preparing yarn with cloud dyeing effect; dyes with more than one color are mixed, and a small amount of dispersing agent is added, so that the pigment is not completely uniformly mixed, and the yarn obtained by extrusion molding of the pigment mixed spinning raw material has a randomly distributed multi-color cloud dyeing effect, and the cloud dyeing yarn with multi-color cloud dyeing effect is prepared, and compared with the cloth blank prepared by the traditional single-color yarn, the prepared cloth blank has a more three-dimensional pattern effect.

An orange-colored adhesive tape (1) a cable-wrapping tape, including a colored textile substrate (4, 4a, 4b) and an adhesive layer (5, 5a, 5b) applied at least to one side of the substrate (4, 4a, 4b). The substrate (4, 4a, 4b) contains at least one red and at least one further colorant. In order to improve colored tapes of the above-mentioned type, in particular providing increased temperature stability, while maintaining advantageous usage properties, at least one of the colorants contains a disazo compound or is completely formed therefrom. A method and a substrate (4, 4a, 4b) for manufacturing the adhesive tape (1) as well as a cable harness (3) with the adhesive tape (1) are also described.

The present disclosure discloses a method for preparing a pure chitosan fiber, and relates to the technical field of preparation of chitosan. The method includes the following steps: S1, preparing an acetic acid solution; S2, preparing a chitosan stock solution; S3, treating a chitosan spinning solution; and S4, preparing a chitosan fiber. In step S3, a pretreatment machine includes a body; an driving mechanism is arranged in the body; a stirring mechanism is arranged in the driving mechanism; a scraping mechanism is arranged below the driving mechanism; a preliminary treatment mechanism is arranged at an inner upper side of the body; the driving mechanism penetrates through the preliminary treatment mechanism and is arranged in the body; a separation mechanism is arranged on a bottom of the body.

A pack for spinning is provided with a kneading part disposed on a spinneret. The kneading part includes: an introduction plate including a plurality of first introduction holes for introducing a melted polymer; and a plurality of kneading units including a supply plate including a plurality of independent supply grooves into which the polymer introduced from the introduction holes flows and one or more supply holes disposed in each of the supply grooves, and a converging plate including a plurality of converging grooves in which a plurality of grooves into which the polymer supplied from the supply holes flows are intersected and a plurality of second introduction holes disposed in each of the converging grooves.

A method for manufacturing a composite fabric includes the steps of feeding, mixing and stirring, first drying, hot melt extrusion, first cooling, stretch extension, second cooling, winding-strands-into-roll, second drying, and weaving. The composite fabric is composed of multiple first threads and multiple second threads which are woven to the first threads. The first threads and the second threads are respectively reflective threads and glowing threads so that the composite fabric includes both features of light reflection and glowing in dark.

Provided in one implementation is a method that includes introducing a volume of raw material into a chamber of a cavitation machine. The raw material can include a mixture comprising a powder and a solvent. The powder can have a first average particle size in the raw material. The method includes applying a hydrodynamic cavitation process to the raw material to produce a product material. The powder can have a second average particle size, smaller than the first average particle size, in the product material. The method includes causing the product material to exit the cavitation chamber and drying the product material to remove the solvent. Apparatus employed to apply the method are also provided.