D01D MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
Description
D01D covers mechanical processes and equipment used to manufacture synthetic filaments, threads, fibers, bristles, and ribbon-like structures from man-made materials. This includes spinning apparatus, drawing and stretching equipment, texturizing machines, and other mechanical devices employed after the initial polymer extrusion or formation stage. The classification encompasses both continuous filament production and staple fiber manufacturing, including mechanical treatments applied to modify fiber properties such as crimp, bulk, or strength. Related chemical processes in polymer synthesis and the production of natural fibers are classified elsewhere in D01.
7 direct subcodes
Child Classifications
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- D01D 1/00 Treatment of filament-forming or like material (working of plastics or substances in a plastic state, in general B29)
- D01D 10/00 Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected (finishing D02J)
- D01D 11/00 Other features of manufacture
- D01D 13/00 Complete machines for producing artificial threads
- D01D 4/00 Spinnerette packs; Cleaning thereof (, D01D5/24, D01D5/253, D01D5/28 take precedence)
- D01D 5/00 Formation of filaments, threads, or the like
- D01D 7/00 Collecting the newly-spun products ( collecting newly-spun products with the imparting of twist D01H)
Top Applicants
Top 10 applicants by patent filingsfor class D01, 2013–2023, worldwide · Source: EPO PATSTAT
- TORAY INDUSTRIES JP 1,268
- MASCHINENFABRIK RIETER CH 1,200
- NATIONAL DONG HWA UNIVERSITY 955
- LENZING AT 602
- P&G (PROCTER & GAMBLE COMPANY) US 594
- WUHAN TEXTILE UNIVERSITY 494
- TRUETZSCHLER & COMPANY DE 453
- KOLON INDUSTRIES KR 433
- OERLIKON TEXTILE & COMPANY DE 430
- CHINESE ACADEMY OF SCIENCES 412