Overview - ISO 8640-3:2002 (Flat warp knitting machines - Vocabulary of patterning devices)
ISO 8640-3:2002 is an International Organization for Standardization (ISO) vocabulary standard that defines the terminology for patterning devices used on flat warp knitting machines. It is part of the ISO 8640 series covering flat warp knitting machinery and accessories. The standard clarifies names and definitions for components such as lapping devices, patterning presser devices, fall-plate patterning, yarn let-off and tensioning patterning devices, needle-bar stopping devices, weft insertion devices and take-up patterning devices.
The document includes illustrative figures showing working principles (not exhaustive) and provides English and French official terms, with German equivalents published by the German member body (DIN).
Key topics and technical terms
ISO 8640-3 focuses on standardized vocabulary rather than performance specifications. Key technical topics include:
- Lapping devices for warp ends - terms describing lateral displacement and guide bar control
- Pattern drive types - one-shaft, two-shaft, supplementary drives, convertible and stopping devices (direct/indirect control)
- Patterning presser and fall-plate devices - naming and functional references for pattern presses and fall plates
- Yarn let-off and yarn tensioning patterning devices - terminology related to yarn feed and tension control for patterning
- Needle bar stopping devices - standardized names for devices that stop needle-bar motion
- Weft insertion and take-up patterning devices - vocabulary for auxiliary patterning actions in fabric formation
- Notes on illustrations, combination of devices and intellectual property/patent considerations
Practical applications and users
ISO 8640-3 is useful for:
- Manufacturers and designers of flat warp knitting machines to ensure consistent terminology in drawings, user manuals and specifications
- Maintenance engineers and technicians for accurate troubleshooting and parts identification
- Procurement and quality teams when writing contracts, technical requirements and acceptance criteria
- Educators and trainers preparing teaching materials (reproduction permitted under specified conditions)
- Standards developers and translators for harmonized multilingual terms across documentation
Using a common vocabulary reduces miscommunication, improves interoperability between components and suppliers, and supports safer, clearer technical documentation in the textile machinery sector.
Related standards
- ISO 8640-1: Driving mechanisms, supports and knitting elements
- ISO 8640-2: Warp let-off, fabric take-up and batching
- ISO 8640-4: Stitch bonding machines and stitch bonding devices
Keywords: ISO 8640-3, flat warp knitting machines, patterning devices, textile machinery, vocabulary, pattern drive, lapping device, yarn let-off.