Method of manufacturing yarn and yarn obtained in that manner

Patent metadata

Field	Value
Publication number	US-12553154-B2
Application number	US-202218287753-A
Country	US
Kind code	B2
Filing date	Apr 25, 2022
Priority date	Apr 23, 2021
Publication date	Feb 17, 2026
Grant date	Feb 17, 2026

Abstract

Method for manufacturing yarn, wherein said yarn comprises a plurality of continuous filaments, wherein said method comprises at least the following steps: —the step of spinning, preferably melt spinning, a plurality of continuous filaments; and—the step of treating said plurality of continuous filaments by means of a pressurized fluid supplied by two or more nozzles, and wherein one or more of said nozzles deliver said fluid at a varying pressure and/or rate and/or temperature.

First claim

What is claimed is:

1 . A method for manufacturing yarn, comprising:
melt spinning a length of a first plurality of continuous filaments and a length of a second plurality of continuous filaments; randomly treating the lengths of the first and second pluralities of continuous filaments with a first fluid and a second fluid;
wherein a first nozzle treats the length of the first plurality of continuous filaments with the first fluid having a first fluid characteristic that is selected from the group consisting of a pressure, a rate, a temperature, and combinations thereof;
a second nozzle treats the length of the second plurality of continuous filaments with the second fluid having a second fluid characteristic that is selected from the group consisting of a pressure, a rate, a temperature, and combinations thereof; and
wherein each of the members of the groups of first and second fluid characteristics are independently controllable; wherein:
randomly treating the length of the first plurality of continuous filaments comprises randomly activating and deactivating the first nozzle along the length wherein the member selected from the first fluid characteristic is randomly changed while treating the length of the first plurality of continuous filaments; and
randomly treating the length of the second plurality of continuous filaments comprises randomly activating and deactivating the second nozzle along the length wherein the member selected from the second fluid characteristic is randomly changed while treating the length of the second plurality of continuous filaments.

2 . The method of claim 1 , wherein the length of the first plurality of continuous filaments is treated with the first fluid during a time period, wherein a first member selected from the group of the first fluid characteristics is changed during the time period.

3 . The method of claim 2 , wherein the length of the second plurality of continuous filaments is treated with the second fluid during the time period, wherein a first member selected from the group of the second fluid characteristics is changed during the time period.

4 . The method of claim 3 , wherein the change of the first member of the first fluid characteristic occurs at a different time than the change of the first member of the second fluid characteristic.

5 . The method of claim 4 , wherein the first member of the first fluid characteristic is different from the first member of the second fluid characteristic.

6 . The method of claim 5 , wherein the length of the first plurality of continuous filaments comprises filaments of a first color or dyeability, and the second plurality of continuous filaments comprises filaments of a second color or dyeability, and the length of the first color or dyeability is different from the second color or dyeability.

7 . The method of claim 6 , wherein the length of the first plurality of continuous filaments is wetted with wetting agents before being treated.

8 . The method of claim 5 , wherein the length of the first plurality of continuous filaments comprises a first sub-thread and a second sub-thread; wherein the first sub-thread comprises a first group of continuous filaments and the second sub-thread comprises a second group of continuous filaments; and wherein the first group of continuous filaments comprises filaments of a first color or dyeability, the second group of continuous filaments comprises filaments of a second color or dyeability, and the length of the second plurality of continuous filaments comprises filaments of a third color or dyeability.

9 . The method of claim 1 , wherein the length of the first plurality of continuous filaments is treated with the first fluid during a time period having a start time and an end time, and wherein the length of the second plurality of continuous filaments is not treated with the second fluid at either the start time or the end time but is treated with the second fluid for a portion of the time period.

10 . The method of claim 9 , wherein the length of the first plurality of continuous filaments is treated with the first fluid during the time period, wherein a first member selected from the group of the first fluid characteristics is changed during the time period.

11 . The method of claim 10 , wherein the length of the second plurality of continuous filaments is treated with the second fluid during the portion of the time period, wherein a first member selected from the group of the second fluid characteristics is changed during the portion of the time period.

12 . The method of claim 11 , wherein the change of the first member of the first fluid characteristic occurs at a different time than the change of the first member of the second fluid characteristic.

13 . The method of claim 12 , wherein the first member of the first fluid characteristic is different from the first member of the second fluid characteristic.

14 . The method of claim 13 , wherein the length of the first plurality of continuous filaments comprises filaments of a first color or dyeability, and the length of the second plurality of continuous filaments comprises filaments of a second color or dyeability, and the first color or dyeability is different from the second color or dyeability.

15 . The method of claim 14 , wherein the length of the first plurality of continuous filaments is wetted with wetting agents before being treated.

16 . The method of claim 13 , wherein the length of the first plurality of continuous filaments comprises a first sub-thread and a second sub-thread; wherein the first sub-thread comprises a first group of continuous filaments and the second sub-thread comprises a second group of continuous filaments; and wherein the first group of continuous filaments comprises filaments of a first color or dyeability, the second group of continuous filaments comprises filaments of a second color or dyeability, and the length of the second plurality of continuous filaments comprises filaments of a third color or dyeability.

17 . The method for manufacturing yarn of claim 1 , wherein the first nozzle and the second nozzle are rotating interlacing nozzles.

18 . The method of manufacturing yarn of claim 5 , wherein:
the length of the first plurality of continuous filaments and the length of a second plurality of continuous filaments are the same; the length is at least 1500 cm; and the yarn shows a varying color without repeat in the length.

Assignees

• Aladdin Mfg Corp

Inventors

• Jones Lucinda

Classifications

• D10B2401/14

  Dyeability · CPC title

• B29C2948/92704

  Temperature · CPC title

• B29C2948/92923

  Calibration, after-treatment or cooling zone · CPC title

• B29C2948/92514

  Pressure · CPC title

• D01D5/088

  Cooling filaments, threads or the like, leaving the spinnerettes · CPC title