D01D MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
Introduced: September 1968
Classification Context
- Section:
- TEXTILES; PAPER
- Class:
- NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- Subclass:
- MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF MAN-MADE 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.
Related Keywords
7 direct subcodes
Child Classifications
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- D01D 1/00 Treatment of filament-forming or like material
- D01D 10/00 Physical treatment of man-made filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D 11/00 Other features of manufacture
- D01D 13/00 Complete machines for producing man-made threads
- D01D 4/00 Spinnerette packs; Cleaning thereof
- D01D 5/00 Formation of filaments, threads, or the like
- D01D 7/00 Collecting the newly-spun products
Top Applicants
Top 10 applicants by patent filingsfor class D01, 2013–2023, worldwide · Source: EPO PATSTAT
- NATIONAL DONG HWA UNIVERSITY 1,242
- MASCHINENFABRIK RIETER CH 1,162
- TORAY INDUSTRIES JP 1,093
- TORAY INDUSTRIES 802
- JIANGNAN UNIVERSITY 771
- WUHAN TEXTILE UNIVERSITY 663
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 653
- CHINESE ACADEMY OF SCIENCES 559
- LENZING AT 525
- MURATA MACHINERY 492