Tien Chiu

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You are here: Home / Archives for doubleweave

July 7, 2010 by Tien Chiu

Doubleweave samples

It was an exhausting long weekend – the first two days were spent setting up the BBQ, having the party, and cleaning up.  By the time Saturday and Sunday were over, I was feeling reclusive and fiber-deprived, so I spent all day Monday working obsessively in the dyepots and over the loom.

And here is what I have!

block doubleweave samples, top side
block doubleweave samples, top side

Much to my surprise, my best-guess sett turns out to be correct, and the results, on the top at least, are lovely.

Alas, the results on the bottom are not so lovely:

Back side of block doubleweave samples
Back side of block doubleweave samples

Kind of hard to make out, but you can clearly see the skips in the orange/yellow layer, where blue is peeking through.

I think I understand what the problem is, but not (yet) how to fix it.  I’m weaving with 1/3 twill background on the top and 1/3 twill background showing on the bottom, which of course means that I’m actually weaving a 3/1 twill on the bottom.  This means that I’m weaving with nearly all threads lifted, which is (generally) an invitation to skipped threads.  I have a mirror adjusted so I can see the bottom of the cloth, but the lighting on the bottom is  poor and it’s difficult to see skips as they happen.  I tried lighting the bottom layer to make things more obvious, but to no avail.  I may re-adjust the mirror to show me the shed instead of the bottom layer – not the best of solutions since it means turning my head to check every single pick, but better than lots of skips.  If anyone has a better suggestion, I’m all ears.

That said, I am ECSTATIC at the appearance of the doubleweave blocks.  On the topside, it’s just beautiful.  And the two-shuttle weave is going nicely, too.  I had worried that switching shuttles constantly would be frustrating, breaking the natural rhythm.  But it turns out to be just a different rhythm – slower, sure, but not much slower than what I’ve been weaving lately!  And the results are worth the additional effort.

I have also made progress on dyeing the weft skeins.  Here is my dyeing setup:

dyeing setup for multiple=
dyeing setup for multiple small skeins

I’m using Sandra Rude’s system, with loops of heavy copper wire in vinyl tubing holding each skein.  This makes it easy to lift the skein out of the dyebath without tangling the skein or burning your hands, and is a handy place to hang a tag, too.  Once the skein is out of the dyebath, it gets labeled and hung to dry.

Here are about half the skeins, almost dry:

1st set of skeins, dyed in gradient colors
1st set of skeins, dyed in gradient colors

Not a huge difference in color, but it goes from a bluer red at right to a distinctly orangey red at left.  I’m using price tags to label each skein, and will label each cone as it’s wound on.

I now have a lot of meticulous work to do.  The pattern did not come out quite as I wanted, so I’m going to have to rework the pattern in Photoshop to make sure that it comes out right.  This entails quite a bit of tedious point-and-clicking, which I am not looking forward to, but hey, a girl’s gotta do what a girl’s gotta do, right?  So tonight I will continue weaving samples to see if I can get both layers perfect (or near perfect), and tomorrow morning I will rework my patterns in Photoshop.  I may  also play around with color gradients in the weaving, which means winding a bunch more pirns.  Fortunately I have figured out how to wind a small piece of watercolor paper (rough on one side) into a pirn of sorts, or I would be buying 56 pirns just for this one project!

Filed Under: All blog posts, textiles, dyeing, weaving Tagged With: doubleweave, doubleweave shawls, gradient colors

June 16, 2010 by Tien Chiu

Sometimes simpler is better

Yesterday we were both still pretty exhausted, so we mostly spent it on Granville Island, looking at the artisans and exploring the Granville Island Market, which I have to say is exceptional.  The Traveling Tigress, ever-inquisitive, poked her nose into shop after shop, discovering such delicacies as snake fruit, long kong fruit, sugar apples, kaffir limes, and birch syrup.  Mostly they weren’t terribly exciting (birch syrup tastes like watery molasses, sugar apples like a somewhat drier and more sugar-cane-y cherimoya), but the kaffir lime has real possibilities for chocolate.  I’m glad I now have a kaffir lime tree (thanks Blossom!) as that will give me a chance to try candied kaffir lime peel with chocolate this year.

There is also a decent chocolate shop in the market!  “Decent” as in “comparable to mine”, which is rare.  I’m suitably appreciative.

Anyway, I woke up this morning feeling far more refreshed, and as nothing was open and Mike wasn’t going to be awake for another two hours, I started working on more variations of the double-gradient doubleweave.  It’s fidgety work – first I have to separate the liftplan into layers, then I have to apply pattern presets to those layers to “fill in” the liftplan with actual weave structures.  After that, I save the liftplan as a .bmp file, open Fiberworks PCW, cut and paste the liftplan into the threading file, and save the resulting file.  Then I take screenshots of both front and back of the cloth using SnagIt, take them into Photoshop, separate the warps and wefts into 4 different layers, and then apply a gradient to the weft layers.

All of which is basically explaining why it took me two hours to do three or four variants on the liftplan I was using.

Here are the variants I tried.  They all look quite similar, but they’re not.  In the first one, the pattern squares (the diamonds) vary from 1/3 to 3/1 twill.  In the second, they vary from 1/3 to 2/2 twill.  In the last one, the pattern squares are all 1/3 twill.  The difference is in the slight vertical banding you can see if you look closely at the larger pix:

pattern blocks (diamonds) go from 1/3 to 2/2 to 3/1 twills
pattern blocks (diamonds) go from 1/3 to 2/2 to 3/1 twills
pattern blocks (diamonds) in 1/3 and 2/2 twill, predominantly 2/2 twill
pattern blocks (diamonds) in 1/3 and 2/2 twill, predominantly 2/2 twill
pattern blocks entirely in 1/3 twill
pattern blocks entirely in 1/3 twill

Of the three, I like the last one (“pure” 1/3 twill) the best, suggesting that sometimes, simpler really *is* better.  (Something I have a hard time remembering!)

Off to breakfast!

Filed Under: All blog posts, textiles, weaving Tagged With: doubleweave, doubleweave shawls, gradient colors

June 8, 2010 by Tien Chiu

Another color mix

I “mixed” this up this morning:

Red to green color gradient (going through orange) in one weft, purple to fuchsia in another; solid blue and gold warps, front view
Red to green color gradient (going through orange) in one weft, purple to fuchsia in another; solid blue and gold warps, front view
Red to green color gradient (going through orange) in one weft, purple to fuchsia in another; solid blue and gold warps, back view
Red to green color gradient (going through orange) in one weft, purple to fuchsia in another; solid blue and gold warps, back view

I’m not sure I like the addition of the green; the value difference between the green and yellow makes a pretty visible value difference in the center of the “shawl”.  But if I “time” the green so it coincides with the lightest part of the turquoise,  perhaps that will help.

Regardless, I’ve learned a few things:

  • Strong color contrasts (opposite ends of the color wheel) will add a lot of “vibration”.  This looks ok to good if used as pattern, but is very distracting when used as background.  An interesting “solution” to this problem might be to make the background on the reverse side dominant in one of the two colors, e.g. a 3/1 twill rather than a 2/2 twill (which is how it is currently set up).  I’ll have to try that with a different draft.
  • Because of this, the overall appearance looks best if the weft gradient colors are (on the color wheel) located to either side of the warp that it weaves with.  In this case fuchsia/blue is weaving with turquoise, green/orange/yellow/red is weaving with yellow.  These are analogous colors, so look pleasing without too much “vibration” or dulling-out of colors.
  • Differences in value are also very visible and will produce a “stripe” effect even if the gradients are smooth.  The results that are most pleasing to my eye (at least in Photoshop) are those where there is only one gradient across the length of the entire shawl.  It might be possible to get a pretty result with lots of gradients across the entire shawl, but I think you’d have to make the pattern extremely simple, otherwise it would simply be too “busy”.

I’ve also decided that learning is easier if you’re only turning one set of knobs at a time.  If I were trying to understand the color interactions while simultaneously messing around with structure, it would be much harder to reach conclusions.  I’d never know for sure whether the color interactions were different because of the weave structure or because of the colors themselves.  As it stands, I’ve learned a lot from studying color in just one weave structure, and moreover a weave structure that weaves identically (only with reverse colors) front and back.

Now that I’ve a better idea of what happens with colors, I think I may move on to considering what can be done structurally to differentiate front and back – using the same profile draft, but “filling in” the draft with different  structures on front and back.

After that, if I still have time, I’ll play around with different profile drafts, to give wholly new patterns, though I don’t think that is strictly necessary.  I think I can get enough interesting variations with a single profile draft to occupy me for three shawls, and I don’t think that doing more profile drafts will teach me much more than fiddling with a single draft.  I already understand the process for layering structures using Photoshop, so that would just be a repeat of what I already know.

I’ve begun to calculate what I’ll need for this project, in preparation for dyeing yarn.  Because I need such small amounts of any given color, a small skein goes a loooong way.  (For weft yarn, I think I only need 3 grams of each color per weft, if there are 30 colors!)  So I am thinking I will either dye 30 gram skeins in a quart jar, or 50 gram skeins in a half-gallon jar.

The trade-off here is time: I can fit four half-gallons or 7-8 quart jars into my big dyepot.  This means that, to get 60 colors for a two-gradient shawl, I’d have to do fifteen batches of 50 grams, vs. only 8-9 batches if I use smaller skeins.  That’s 3 weeks’ worth of dyeing vs. about a week and a half, assuming I can get  one dyebath per day on most days.

The advantage of dyeing bigger skeins is that, as it is nearly impossible to match colors perfectly, it results in less waste – I can use a single batch of colors for a long time rather than having dye another batch and throw the leftover colors away.  (Or, rather, reserve them for undetermined “other uses”.)  The downside is that it takes a lot more time, and requires bigger upfront investment.  (90 colors, which is what it would take to do three color gradients, times 50 grams apiece = 4500 g or about 10 lbs of silk yarn!  Even purchasing cheaply from India, that’s $300-350 worth of yarn.)

So I’m still mulling that over.

All is (relatively) quiet on the wedding front.  Pretty much everything is settled at this point, so it’s just a matter of greeting the out-of-town guests as they arrive.

Filed Under: All blog posts, textiles, dyeing, weaving Tagged With: doubleweave, doubleweave shawls, gradient colors

June 6, 2010 by Tien Chiu

More gradients

My fingers are twitching to get into the dyepots.  Here’s what today’s Photoshop simulations turned up:

Block doubleweave with three gradients in warp and weft, back view
Block doubleweave with three gradients in warp and weft, back view

Here the blue/purple background is transitioning gradually from fuchsia at the edges to turquoise in the center, both along the warp and weft.  The other layer (orange/yellows) has a solid yellow warp, and a weft that changes colors gradually from red to orange and back again.

Here’s the back view (please click for the larger version, the resizing function blends out the colors unattractively in the smaller view):

Block doubleweave with three gradients in warp and weft, front view
Block doubleweave with three gradients in warp and weft, front view

I like this pair quite a bit.

Then I said to myself, “Too much is not enough – what if I did FOUR gradients?”

And of course I had to answer my question:

Block doubleweave with four gradients in warp and weft, back view
Block doubleweave with four gradients in warp and weft, back view
Block doubleweave with four gradients in warp and weft, front view
Block doubleweave with four gradients in warp and weft, front view

Ooh, pwetty!  I MUST try it!

Of course, first I need to dye another 60-odd colors, so I can get those smooth color transitions in fuchsia/blue and red/orange…and finish weaving this warp so I can start up a double color gradient warp…

…and I can’t do any dyeing until AFTER the wedding (T minus 6 days!)…

…so instead, I’m sitting on my hands and saying “MUST….NOT…DYE…YARN!!  MUST…NOT…DYE…YARN!!”

I’m sure it would be amusing, if I weren’t so eager to get into the pots.

Meanwhile, the ceremony is finalized, the music selected, vows written, my little speech to the groom sent off to the officiant…pretty much everything is ready.  So I’ve been burning off my nervous energy by cleaning up the house.  It’s not neat by any means, but it has less stuff cluttering every surface than it usually does.

Filed Under: All blog posts, textiles, dyeing, weaving Tagged With: doubleweave, doubleweave shawls, gradient colors

June 5, 2010 by Tien Chiu

Color play in doubleweave

Today I started playing with gradient colors in Photoshop, simulating various combinations of gradually changing weft colors.  I took a screenshot of a four-color doubleweave pattern that I liked:

4 color doubleweave pattern, original
4 color doubleweave pattern, original

This one actually has some color changes in the weave structure – the orange and gold parts shade from a 3/1 twill to a 1/3 twill over the course of the larger diamonds, making them orange dominant in some places and gold dominant in others.

Anyway, I then separated the Photoshop file into four layers using the magic wand tool and “New Layer by Cut” – one layer for each color.  I then selected one weft layer, and used “New Layer” with the “Use Previous Layer as Clipping Mask” check box checked.  This enabled me to play with gradient fills without overwriting my original layer.

Then I started playing with gradient colors. First I thought I’d see what happened with a simple color change from fuchsia to turquoise and back again, in the background weft.  (Please do click through to see the larger photos; the small ones don’t let you make out the detail.)

single gradient in  four-color doubleweave
single gradient in four-color doubleweave

This was pleasing, so I thought I’d try a double gradient and see what happened:

1st attempt at a double gradient in four-color doubleweave
1st attempt at a double gradient in four-color doubleweave

Here the weft that weaves with the yellow warp is shading gradually from red to yellow and back over the course of the shawl, and the weft that weaves with the blue warp is shading gradually from turquoise to fuchsia and back.

I liked this one a lot, but continued experimenting.  This time I tried reversing the gradient in the foreground, taking the weft from yellow to red and back.  Aackpfft!

double gradient in four-color doubleweave
second double gradient in four-color doubleweave

Way, way too “busy”.

This was not useless, however, because it showed one interesting thing: contrasting values and complementary colors have a lot more “energy” and “busy-ness” to them than colors of similar value and not-quite-so complementary colors.

Then, just for kicks, I thought I’d see what happened if you used gradient color with a faster repeat.  This time I created the gradients in sections (with a new layer for each gradient), so I could control each  gradient separately.  One gradient for each big diamond, each going from fuchsia to turquoise and back again.  Yikes!

First attempt with multiple=
First attempt with multiple gradients in four-color doubleweave

Whew!!  WAY too busy.  Cross that one off the list.

And so it goes.  Right now I’m not trying to create a masterpiece, just fiddling with the knobs and dials and trying to understand how color plays with pattern.  There is such a vast realm of possibility with four-color doubleweave and gradients – I’ve barely scratched the surface!  But this is really, really exciting.  And it’s keeping me from pacing around the house.

Plans for this weekend: clean house!  Since I don’t have any current projects (and don’t want to start a new one right before the wedding), I’m going to burn off some of that excess energy by doing a very badly-needed cleanup session on the house.  Put away all the dyestuff, clean the kitchen, etc. – straightening up the house in anticipation of Mike’s uncle’s visit with us on Tuesday/Wednesday.  I also plan to pack and ship the mannequins for the Convergence display of my wedding-dress this weekend.  Getting this dress to and from Convergence is NOT going to be cheap – the insurance costs on shipping a $27,000 object are unholy – but worth it, because I know a lot of people would like to see it there, including me.  🙂

Filed Under: All blog posts, textiles, weaving Tagged With: doubleweave, doubleweave shawls

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