Nep & trash count
Count neps, seed-coat fragments, and trash per gram of cotton web, sized and classified.
Example outputs shown for illustration. Numbers depend on your samples and protocol.
What you get
The measurement, today
Neps and trash are counted by hand off a card web, or scored against reference cards. Sampling is small, counting is slow, and the small neps that matter most are the easiest to miss.
What it costs
Neps survive into the yarn and show up as dye-resist specks in finished fabric. High trash raises ends-down at the spinning frame and pushes card waste up, so the cost lands twice.
From image to reviewed result
- 1
Image the web
Scan a card web or a prepared web sample against a contrasting backing.
- 2
Detect the objects
Every nep, seed-coat fragment, and trash particle is segmented and located.
- 3
Size and separate
A size threshold separates neps from larger trash, the same filter that isolates small objects elsewhere in the engine.
- 4
Normalise per gram
Counts are divided by the sampled web mass and reported with the full size distribution.
Scope: Counts and sizes objects visible on the imaged web surface. The split between neps, seed-coat fragments, and trash follows size and reflectance; confirm ambiguous objects by microscopy.
Related applications
Fiber diameter distribution
Mean diameter, CV%, and D10/D50/D90 for wool, synthetic, and nanofiber, measured from the image.
Particle size analysis
Static image-analysis particle sizing with shape descriptors across full fields.
Fiber & inclusion analysis
Count and size fibers and inclusions, with area fraction and class breakdowns.
Send a sample image and a measurement goal
We will show the closest ConductVision workflow and flag what needs custom validation for your images.
