D01B MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OR FILAMENTS, e.g. FOR SPINNING
Introduced: September 1968
Classification Context
- Section:
- TEXTILES; PAPER
- Class:
- NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- Subclass:
- MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OR FILAMENTS, e.g. FOR SPINNING
Description
D01B covers mechanical processing of natural fibrous materials—such as cotton, wool, flax, hemp, and silk—to prepare them for spinning into yarn. The classification encompasses techniques including opening, cleaning, carding, combing, and other preparatory operations that separate, align, and condition fibers while removing impurities and foreign matter. This subclass addresses both the machinery and processes involved in fiber preparation but excludes chemical or bleaching treatments, which are covered elsewhere in the D section.
Additional Content
Plant plants Any of a kingdom (Plantae) of multicellular eukaryotic mostly photosynthetic organisms typically lacking locomotive movement or obvious nervous or sensory organs and possessing cellulose cell walls.
Related Keywords
5 direct subcodes
Child Classifications
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- D01B 1/00 Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
- D01B 3/00 Mechanical removal of impurities from animal fibres
- D01B 5/00 Hackling or heckling machines
- D01B 7/00 Obtaining silk fibres or filaments
- D01B 9/00 Other mechanical treatment of natural fibrous or filamentary material to obtain fibres or filaments
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