Assertion: bobbin's thread | /r/HasProperty | loose
Facets:
Source sentences:
text: Upper thread is too loose
text: Too little tension, the thread will sag or not lay flat on the fabric because there is too much slack.
text: If the upper thread is visible from the wrong side of the fabric, the upper thread is too loose.
text: If the upper thread was incorrectly threaded, the upper thread may be too loose.
text: When the two threads are too loose, the seam opens by itself.