Automatic color-tone test device and automatic controlling system for dye liquor
US6507397B1 · kind B1 · utility
4Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2000 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Mar 28, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0668
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automatic color-tone test device comprises: a measurement cell 4 to which there are communication-connected dye liquor introduction tubes 16, 18 for passing through a controlling dye liquor that is a measurement object and dye liquor discharge tubes 17, 19; a spectrophotometer adapted such that a light transmission distance in the measurement cell 4 can be variably set in compliance with a concentration level of the controlling dye liquor that is a measurement object; and a statistical test computer section for operation-judging whether or not concentration and hue agree with desired values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.