Friday, September 5, 2008

Black After All

Black cotton and black tencel, network twill patternSo the second piece on this warp turns out to be black on black, after all. That's black cotton warp and black tencel weft. It's weaving up quickly and I'm enjoying it.

In painting that 18 inch weft I'd intended to use on this 18 inch warp, I completely forgot about take up! To the uninitiated, what that means is that it takes more than 18 inches of weft to lay in a pick 18 inches wide. That's because of the take up that occurs as the weft yarn goes over some threads and under others. It actually requires about 10 percent more than the weaving width, which would be close to 20 inches per each pick of weft. In other words, that 18 inch weft I painted needs a warp of 16.3 inches to work! Rude awakening here. I usually have more than enough weft yarn so I don't really consider take up in my calculations. But this time I should have.

So, the NEXT piece I warp will be 16.3 inches wide to accommodate that painted weft. Yes, I am determined to get it woven up, and the next piece will do it!

3 comments:

Peg in South Carolina said...

Gorgeous! To get the width of the weft yarn accurately (BEFORE you dye it.....grin!), you weave for an inch, mark the weft at the selvedges with black dots, unweave, and then measure the lengths between the black dots, finding the average length. I badly want to try this with my crackle stuff, but so far not badly enough actually to the work.....

Connie Rose said...

Thanks Peg -- yeah, and duh! What's your crackle work? Crackle weave or something else that requires you to measure the weft first? I'm curious.

Peg in South Carolina said...

Connie, I was referring to the art pieces I have been doing using a crackle weave structure.