Friday, May 15, 2020

Waves of Color: Double Weave with Echo Threadings


"Knit on with confidence and hope through all crises."
Elizabeth Zimmerman

As usual, Elizabeth Zimmerman nailed it: Substitute "weave" for "knit" and that's some of the best advice I can think of in these troubled times. 

So let's look at one of the most beautiful techniques weavers have been focusing on lately (at least judging from Facebook and Instagram and texts I've gotten from friends).

There's this gorgeous piece, from my fellow upstate New Yorker, Amy Parker (first photo shows side one, second photo shows side two):



This is an 8-shaft double-weave fabric woven on 32 treadles with a variety of warp and weft yarns, according to Amy, all around the grist of 10/2 cotton. Each vertical section has 2 colors in the warp and 2 in the weft, so the back side of the piece looks different from the front.

The draft is by Marian Stubenitsky, who generously shared it here on handweaving.net. (It looks a little dark in this reproduction, but hopefully you get the idea.)



Here are some 32-shaft samples by Susan Weigel Balascio, posted recently on Instagram. The samples, using fine threads in the warp, are wonderful. One half of her warp was black merino and pale yellow and the other half was 20/2 Tencel in blues and purples. In the first sample below, she alternated purple merino and a thin red/gold film for her weft yarns. For the second sample, her weft yarns were 38-gauge copper doubled and a 3-ply green silk.




While photos are great for observing color and form, there is no substitute for the sense of touch, to know the hand of a fabric. Susan says the samples are light and lofty, which is ideal for collapse fabrics. Thank you, Susan! 

As for me, sheltering in place with my husband and my looms, I've been weaving up lots of samples with 4-color warps, in preparation for workshops I hope to begin teaching online. The photos below show both the front and back sides.










The thing I like about this last sample is the texture, produced by using 18/2 merino for one of the wefts. The technique is known as differential shrinkage, where one fiber shrinks (the wool) while the other does not (cotton), creating pleats and puckers in the fabric. (Specifically, the double-weave structure divides into two layers in some sections and interlaces in others. Where the layers split, the layer with the wool weft will full and shrink with agitation in hot water and soap, drawing in the cotton layer so that it crinkles and collapses.)

Here are a few more samples, these in just two warp colors, showing how differential-shrinkage techniques will make the fabric collapse -- but again, only where the two layers aren't interlaced.




There are many ways to achieve collapse effects with double weave, but they all require a sett and beat that are more open than normal. So, for instance, if you're working with 10/2 cotton in the warp, you would normally weave this in double weave at a sett of 48 epi (24 epi for plain weave x 2 layers = 48 epi). In the case of all the dimensional samples above, my sett is 36 epi. And I'm thinking it could have been even more open. 

Further, collapse techniques work best with finer yarns, so a 20/2 cotton warp would produce a lighter, softer hand in the fabric. 10/2 cotton in double weave creates a sturdy, less flexible fabric, although it would work well for a jacket.

One last note: Designing these structures isn't easy -- and sampling them doesn't always produce success, at least in my experience. Understanding that nearly all Echo-based double-weave patterns are interlaced double weave, you really have to know that there are large-enough parts of your design where the two layers are weaving separately. 

Remember that double-weave sample in the photo at the beginning of this post? I was SO EXCITED about taking it off the loom and scrubbing it up to produce a collapse fabric. Which didn't really happen...


Yes, that was the result. I suspect that there were really no spaces in the structure where the two layers did not interlace. My bad. I liked the sample better before washing! Which brings me to another quote from Elizabeth Zimmerman:

"Now, let us all take a deep breath and forge on into the future, knitting at the ready."

Knitting, weaving, whatever you choose, forge on! Thanks for reading.














Sunday, April 19, 2020

'A time to rend, a time to sew...'



To everything there is a season -- and in this season of coronavirus, many of us are busy sewing face masks.

I'm selling my "fashion mask" pictured above -- using cotton that's hand-dyed with indigo using shibori-resist techniques -- on my Etsy page, with all proceeds going to benefit Feeding America, a national organization that works with food banks, food pantries and meal programs all across the country. (You can check them out at feedingamerica.org.)

The main reasons I've heard for distributing home-made masks is 1) to protect those who need them, such as first responders, hospital workers and essential-service employees and 2) in order to save the N95 masks for those on the front lines, such as doctors and nurses in the emergency rooms and ICUs, where they are needed most. Also, here in New York State, Governor Cuomo has mandated that everyone wear one, starting now (effective April 17).

I first learned about the idea from the folks at Sew Creative, a sewing shop in nearby Fairport, NY. Lisa Swisher and her army of volunteers have, last count, sewn some 10,000 masks for the Rochester community, including the Rochester Police Force. She has bins outside the shop where you can leave your pre-cut fabric and/or your hand-made masks.

For a news story on Lisa and her effort, click here. And I've started a Facebook fundraiser to help the shop out with their purchases: To donate, click here.

Finally, here's the link to mask-making instructions: https://www.roccovid19masks.org/



These masks aren't as easy to make as one might think. You want a mask that fits securely, that can be washed, that has a good filter and that won't fall apart. And then there is the overriding responsibility of doing the best job possible, including the placing of the filter so it goes over the nose and the mouth.

Lisa bought some MERV-13 furnace-filter material, which is supposed to work well to filter out the micro-droplets that COVID-19 is known for. It goes in here, through an opening at the top in the back of the mask.


But I don't have access to that material and I wasn't quite sure how to put it inside the mask. (Lisa does this in her shop rather than have her volunteers do it and, since no one goes inside the shop these days, I have no idea how she does it.) So I did some research and learned that nonwoven polypropylene is the fabric that's used for the really top-quality hospital-mask filters. Turns out, this is the same material you will find in recycled grocery bags and tote bags, although it's a different weave.


So there is some research to back this up, and some websites are recommending it. Here's a link to some great information on what's been scientifically tested and found to work: https://www.popsci.com/story/diy/make-diy-face-masks/

I cut up some tote bags and devised my own filters to insert into my masks, cutting each one to a 4" x 4" shape.


And guess what? They seem to work and they are washable. In fact, I boiled my masks for two minutes -- indigo-dyed cotton, elastic, filter and all -- and they held up! Which means they can be sanitized over and over.

Just let me know if you want more information And above all, stay home and stay healthy. Thanks for reading.

Update on April 20: One day after I posted this, my masks sold out on Etsy! Thanks to all!

Friday, April 3, 2020

'Weave on with confidence and hope through all crises'


I've paraphrased the words of the beloved knitting-writer and teacher Elizabeth Zimmermann, who famously said, "Knit on with confidence and hope through all crises." I adore her, as do most all knitters.

Some other Zimmermann quotes that resonate now more than ever:

"Properly practiced, knitting soothes the troubled spirit, and it doesn't hurt the untroubled spirit either."

"Now, let us all take a deep breath and forge on into the future; knitting at the ready."

So, taking a deep breath, here's what I've been weaving.

And so I weave, despite worrying that it's not feeding anybody, but knowing that it feeds my spirit. And hoping too that it feeds others in some wordless way.




Monday, March 16, 2020

Weaving in a Time of COVID-19: How About an Online Show and Tell?

My show and tell piece: a 16-shaft Echo design using a 4-color parallel repeat. 
10/2 cotton warp sett at 36 epi. 20/2 cotton weft.

Well, here we are: Confined to our homes for the most part, working online, washing our hands, even avoiding friends and family during this crazy time. Others are working in health care or serving the public or daily taking health risks in order to keep food on the table and because they are good people who believe in what they do. Hardship and worry. Toilet-paper shortages, even!

And yet... So many of us have much to be thankful for. I, for one, am able to wind warps and plan projects that I had no time for just last week. I'm communicating with weaving friends online rather than face to face, but it's better than no communication at all. Weaving matters to me and so do my weaving friends wherever they are!

Which brings me to the subject of this post. Because of social distancing, those of us in the weaving community aren't able to share and talk about what we do, as guild meetings and classes and workshops and gatherings at friends' homes have been shuttered. I miss that already!

So, how about an online show and tell? If you're game, please send me a photo of what's on your loom or what yarns you're planning to use -- or just send me an email about what you're working on or what you're planning. It doesn't have to be weaving: It could also be knitting or spinning or dyeing or sewing or felting or beading or crocheting or any other wonderful technique that falls under the loose heading, "Fiber Art."

My email is under my "Contact" page just under the heading of this blog. Thanks in advance for sharing!

So, to begin, I will do an online show and tell on what I just finished. Looking ahead to Convergence 2020 -- and even that may not take place -- I am teaching an advanced course on Echo and Jin for 8, 12 and 16 shafts. As always, I'm weaving up a lot of samples.

The photo at the top of this post shows one of my favorite samples to date. I've named it "Perfect" because it's symmetrical and, quite honestly, because I created so many poor designs before I came up with this one -- so finally one was perfect!

Here's the drawdown.


Let me know if you're interested and I will send it to you! Here's how it looked woven up.

This is my first sample, treadled as Echo. 

Believe it or not, the colors of the warp are turquoise, red, lime green, and purple. The weft color makes all the difference, even though is a light 20/2 cotton. The weft in the above sample is a teal blue. 

I'll spare you all of the variations among my samples -- unless someone really wants to see them and lets me know -- but I will share two of my favorites.

This one is the same threading, but treadled as Jin. 
Bonus: I was able to name this "Perfect Jin." Get it? Perfection? 



And this version is treadled as Double Weave. I had to re-sley it to 48 epi, 
but it was surprisingly easy to weave.

So there you have it: My online show and tell in this time of social distancing. I hope to hear from you -- but if not, I do understand! Thanks for reading.







Monday, February 10, 2020

Jin Is a Tonic


Actually, you can't weave true tabby when you're weaving Jin on an Echo threading. It's more of a half-basket weave, but anyhow....

This post talks about the rewards of Jin, also known as Turned Taqueté, and why it's such a popular structure to weave with, especially when it's woven on an Echo threading.

[First, however, a few credits to share. Kathi Grupp, advertising and marketing manager for the Handweavers Guild of America, deserves applause for starting the meme above, because she was the one who came up with it during a workshop I taught in Atlanta. Thank you, Kathi!

And, since we're talking about Echo and Jin, let's extend thanks also to Marian Stubenitsky, Bonnie Inouye and Margaret Coe, all of whom have made enormous contributions to the storehouse of knowledge in this area -- ever since Alice Schlein first introduced and named the design known as Echo in Weaver's magazine back in the 1990s. To be clear, Jin is an ancient structure, dating back thousands of years, as discussed by Becker in his seminal book, Pattern and Loom. But right now I'm focusing on the gorgeous waving multicolored designs that weavers are creating today.]

So, in Atlanta with Kathi Grupp and members of the Chattahoochee Handweavers Guild, we were discussing the popular weave structure known as Jin and how it solves all kinds of float problems when you want to design a viable fabric on an Echo threading.

Let's start with Echo, because that's the threading many folks use in designing Jin. Working with weaving software to design an Echo pattern, often you'll "test" your design with an ascending twill tieup, where half of the shafts are down and half are raised (meaning that when any warp thread in the design is up, its parallel will be down). Your pattern will show on either side, but in different colors. Brilliant! So many weavers love Echo designs, because they offer lots of freedom in creating curves.

Sometimes the test tieup for Echo works beautifully, depending on the threading. But, more often than not, it creates lots of long floats. Like this:


Bonnie Inouye's rule of thumb is that, when you're weaving Echo, you don't want warp floats that are longer than 5 picks (or weft floats that are wider than 5 warp ends). So this design fails by that standard.

What to do? Keep calm and add tabby -- to weave Jin -- which, by definition, will never give you warp floats of more than 3 picks. For that reason alone, Jin is a tonic. Plus, with two or three or four colors in the warp (using an extended parallel threading) and with the right color in the weft, you'll often get iridescence and, sometimes, new and unpredictable colors that are created by combinations of your basic colors in the warp and weft.

Further, I like to say that Jin is a very tidy structure, because of the uniformity of the 3-pick-long warp floats.


Another way to deal with the warp floats in an Echo design, rather than weaving Jin, is to break up the tieup. (I sometimes jokingly say that we are "tabbifying" the tieup, which is another way to "Keep Calm and Add Tabby.")


With this tieup, you're still weaving Echo, but you are limiting your warp floats to no more than 3 picks (and limiting your weft floats to no more than 3 warp ends). I like the way the advancing point twill treadling works to create strong black and purple zig-zagging lines in the design. The colors really dance on the screen, which tells me that it would be worth trying to weave, maybe using similar colors.

Talking about tabby: To repeat, you can't weave true tabby with Jin on an Echo threading. As I mentioned, you wind up with something like a half-basket weave, where one weft floats over two warps. 

Jin is described by John Becker in his book Pattern and Loom as "warp-faced compound tabby." It's warp-faced because of the 3-pick-long warp floats on both sides of the fabric. And it's a compound structure (as is Overshot, for example) because if you remove the pattern wefts, you will still have some kind of ground cloth (made up of the tabby weft shots). A compound weave structure has two things going on at once, as I understand it.

Terminology is a challenge in weaving, almost like another language. That's one of the reasons I write these blog posts: They help me to understand the language of weaving.

Hope this helps you, too. Thanks for reading!







Friday, January 17, 2020

Sampling with Deflected Double Weave -- and Loving It!


Above is a 12-shaft Deflected Double Weave pattern using 10/2 pearl cotton in three colors in both warp and weft: blue, purple, and sage green. An unlikely combination, yes, but that's what I had in my stash -- and I tend to like unlikely combinations.

I've been weaving away on my 16-shaft Toika Eeva, which is a joy to work on because it's a compudobby and I can change the tieup and treadling with a click of a button for every sample I want to weave. This is all in preparation for a workshop for the Teleraña Fiber Arts Guild -- and boy did they do me a favor! I'm not just talking about inviting me. It's really about the request they made: I tend to use wool with Deflected Double Weave and the program chairs gently asked me not to do that. Fact is, they don't have much use for wool in Arizona, other than for rugs ;o)

So I had to wrap my head around designing Deflected Double Weave patterns that could be woven with cellulose fibers and silk, with a lot of pizazz in the design and the option to weave as collapse fabrics. I decided to substitute Colcolastic (a combination of cotton and Lycra that shrinks up immediately in water), woven ribbon (which compresses and moves about when used as weft), wool/stainless steel yarn (all right, it's wool, but just a teeny bit) and gold gimp, which crinkles up and draws fabric in, creating some interesting textures.

Here's the drawdown I used for the sample above.


As I went about sampling, I changed the tieup and the treadling as well as the weft yarns, because the name of the workshop is "Designing with Deflected Double Weave." It's all about experimenting and seeing what happens. Here are some of the samples I wove up.



This is one of my favorites, using this drawdown.


The photo shows you the back side of the draft, which I like better. The collapse effect comes from using a sage-green-colored Colcolastic yarn in the weft for the portion that has the green and black stripes. 

Here's another design sample:


The magenta horizontal stripes are four picks of hand-dyed rayon ribbon, which compresses vertically. Here's what the same sample looks like without the ribbon weft.


As you can see, the rayon ribbon makes a big difference, adding both color and texture. Here's the drawdown for that sample.


Note that the tieup is the same as for the first drawdown in this post. The only variation is the treadling and the use of just two colors in the weft (rather than 4).

So yes, Eeva and I had a lot of fun with these samples! We wove this, using another variation in the tieup and treadling:


And this, using wool/stainless steel yarn as one of the wefts...


And this, using gold gimp as one of the wefts. My theory for why this yarn collapses: because it has a polymer core wound up in a shiny material that includes metal (for the gold color), the polymer curls up a bit when you wash the sample in hot water, while the gold wrapping gets clunky and bends. That's my theory, anyway.


And just because I had so much fun with this pattern, I want to share with you some of the color variations I came up with as I created the original design in Fiberworks. No accompanying text, just lots of color! Remember that these are all the same draft -- demonstrating that Deflected Double Weave is a color-and-effect weave (meaning that the pattern you see is formed by the colors and is quite different from the weave structure itself). There is much fun to be had in choosing colors.

I'm thinking I would like to weave up yardage incorporating all of these colorways across the warp, as almost a color gamp. Which one is your favorite? 






Thanks for reading!












Tuesday, December 17, 2019

Designing Deflected Double Weave on 8 Shafts


Woven by Amy Parker, the sample above is an 8-shaft design I call "Quilt Squares" because the motifs reminded me of traditional quilt designs. Amy wove this sample for a recent workshop I taught at the Weaving and Fiber Arts Center -- and I love the colors she chose! She even blended some of her green and pink yarns, using two slightly different hues of 20/2 cotton together. This way, the yarns weave as 10/2 cotton but the colors have greater depth and interest.

But I'm getting ahead of myself here. This blog post is about designing with Deflected Double Weave. So I'll walk you through how I went about designing the Quilt Squares pattern on Fiberworks.

First, here's the drawdown.



Looking closer, you see that the threading for the big motifs looks like this. (I'm assigning the letters A, B, C and D to these blocks, which correlate with the diagram below this one.)

THREADING

         A                B          C           D       

Translating the threading above to a block diagram -- better known as a profile draft -- would look like this, using the same letters for the blocks (A, B, C and D). 

PROFILE DRAFT FOR THREADING

      A               B          C          D       

A profile draft is a silhouette or a summary of a threading or treadling, giving you a basic shape that can be translated any number of ways. (As an English Literature major, I can't help but think of synonyms for the words "profile draft" -- such as code, key, shorthand, you get the idea.) Looking at the profile draft above, each square on the grid represents two ends -- one threading unit -- in the threading draft. So starting from the right-hand side of the profile draft, the first square represents shafts 1 and 2, as does the second and the third square. That means the first three squares -- block A -- are threaded 1-2-1-2-1-2, as you see in the threading diagram. The second block in the profile draft, block B, would be threaded on shafts 3 and 4. There are only two squares -- again, two units -- in block B, so the threading there becomes 3-4-3-4.

Deflected Double Weave is a block weave, making it very easy to design based on a profile draft. Once you know what each square in the profile represents, you're good to fill in your threading. 

The next step for me was to assign different colors to the different blocks in the threading, like so:


Blocks A and C are both a melon color, blocks B and D are orange, and then, in the middle of the motif, I added purple in the three blocks of A. 

Next, I went to the "Treadling" drop-down menu in Fiberworks, selected "Weave as Drawn In," made sure that all of the boxes were checked for "Draft," "Colors" and "Thickness," and clicked on "Copy Exactly As Drawn." So now I had my treadling and my weft colors.

Of course, because I had no tieup, the results looked like this, entirely unweavable:


Which brings us to perhaps the hardest part of designing Deflected Double Weave: deciding on the tieup. One way is to use the most minimal tieup there is for Deflected Double Weave, a kind of framework in which every treadle lifts one shaft for every four shafts in the threading. (For 8 shafts, it's a 1-3-1-3 twill tieup.) Here's what that looks like.

And here's what the drawdown becomes using this tieup. It will certainly weave up as Deflected Double Weave, but we still don't have the motifs we want.


I have to confess that at this point I can't quite remember how I decided on the tieup, because sometimes I just play with the blocks one by one to see what works and other times I just plug in a familiar Deflected Double Weave tieup. 

Suffice it to say that there are clear rules for Deflected Double Weave tieups. To begin with, you are always working with just one block in your tieup, which means four squares. (Right? Go back to the threading diagram above and recall that each block weaves plain weave, which is the basis for Deflected Double Weave. And with plain weave, there are four possibilities for the two shafts in each block: shaft 1 up, shaft 1 down, shaft 2 up, shaft 2 down.)

Below, I've outlined one of the tieup sections in blue:

In this case, shafts 7 and 8 will always be down on treadles 1 and 2. That's one option. Another option would be to lift both shafts on both treadles, as you see here outlined in red for shafts 3 and 4.

A third option is to weave plain weave, which looks like this, outlined in orange for shafts 7 and 8.

There are 4 more options, used less often, which look like this:


These are useful when you want warp or weft threads to alternate in floating over or under a block, in that way embracing or containing floats. 

Anyhow, I played with my tieup and came up a very classic Deflected Double Weave plan (the tieup that appears in full above). I'm happy with the results. What's more, I plan on using my "Quilt Squares" draft as one of the options in the next workshop I'm teaching: "Designing with Deflected Double Weave" at the Teleraña Fiber Arts Guild in Phoenix, AZ, February 15-17. I'm looking forward to it! 

















Name Drafts Aren't Just for Overshot....

  Above is a name draft using -- why not? -- the name Michelangelo, employing an Echo threading and a twill tieup and treading. A name draft...