Patent · US Active

Method for producing a pleatable textile fabric with electrostatically charged fibers

US10851476B2 · kind B2 · utility

0Cited by

4References

11Claims

0Family size

Assignee

GROZ-BECKERT KG · DE

Inventors

Ralph Berkemann · Bad Kissingen, DE
Fabian Stauss · Hechingen, DE
Frank Endriss · Raleigh, US
Andreas Tulke · Albstadt, DE

Key dates

Filing date	Oct 6, 2017
Grant date	Dec 1, 2020
Priority date	—
Expiry date	Oct 6, 2037

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD10B2505/04
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for producing a pleatable textile object having electrostatically charged fibres, and to a pleatable textile object is described. At least two separate dies are used, one for the production of finer fibres and one for the production of coarser fibres, using a melt spinning process. At least the first die, which is used to produce the coarser fibres, has concentric orifices. The finer and coarser fibres are mixed at least in sections during the process and are also charged electrostatically with the aid of a polar liquid. The textile object can be used to make filters with a quality factor in excess of 0.2.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.