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Color-and-Weave vs. Shadow Weave: Part One

color and weave vs shadow weave
 
After Plain Weave and Twill, Color-and-Weave and Shadow Weave are frequently the next steps in a weaver’s journey—and for good reason! This simple technique of manipulating warp and weft color order to create patterning gives extra visual interest to almost any weaving structure. This is not a new idea. Color-and-Weave patterns have been found in some of the oldest preserved textiles from North Africa, China, and Europe. But what are these magical techniques, and what are the differences between them?

What's In A Name?

Color-and-Weave is a Plain Weave structure that uses alternating colors (generally two, but sometimes more) in warp and weft (usually the same two colors, but not always) so the viewer sees an overall pattern as opposed to the structure of the cloth.

For example, Plain Weave woven with white in the warp and black in the weft clearly shows the structure of the cloth as the interlacement of the threads is prominent. But when woven in the same two colors alternating in both the warp and weft, the pattern created by the color sequences becomes most prominent. 

In the images below, Plain Weave is on the left, and the Color-and-Weave pattern called Log Cabin is shown on the right. Both pictures show the same woven threading and treadling, only the colors of the threads have changed.

Plain Weave and Log Cabin
Log Cabin is particularly popular with rigid heddle weavers as one can design very dramatic graphics with only two sheds.

Log Cabin Interrupted Scarf designed by Charles Davis, photo by Ian Justice
 

Color-and-Weave can be used on 4-shaft looms as well. A straight-draw threading warped with one color and treadled with a second color results in a familiar 2/2 Twill diagonal. But alternating groups of color in the warp and weft (in this case 4 ends of each color) creates Houndstooth, a Color-and-Weave pattern created on the Twill structure.

Straight Twill vs Houndstooth
Herringbone is another example. Warped with white and woven with black, the reversing diagonal Twill structure of Herringbone is prominent, but when the same colors are alternated in warp and weft, the stair-step pattern is what catches our eye. This color alternation on Twill leads us into Shadow Weave.
Herringbone and Color-and-Weave Herringbone

What is Shadow Weave?

Shadow Weave is an effect of Color-and-Weave in which the color order of warp and weft are integral to the draft. Instead of applying different colors to an existing threading and treadling, Shadow Weave inserts a second color in both warp and weft between every other thread. The patterns visible in Shadow Weave emerge from the interaction of structure and color order. 
 
To convert an existing structure to Shadow Weave, add a “shadow” in a contrasting color after each thread. Mary Atwater introduced this idea in 1942. In her method of drafting, the second color is threaded onto the shaft furthest away from the existing structure’s thread.

 

For example:

straight twill vs straight twill as shadow weave

Below the herringbone draft is converted into a Shadow Weave draft using the Mary Atwater method:

herringbone vs herringbone as shadow weave

Shadow Weave can create large and complex motifs, often giving the illusion of three-dimensional shapes floating above and below the surface of the cloth. The visual effect is magical. People want to touch Shadow Weave fabrics even more than most textiles, expecting to feel the shapes with their fingers. 

The image below is a simple 4-shaft Shadow Weave draft with a 22-thread and pick repeat:

shadow weave 3D draft example

You might see white-edged circles and black-edged squares floating above a ground of horizontal lines. Or you might see vertical strips weaving through horizontal strips with the white circles floating above. Or your eyes and mind may interpret it in a different way altogether. In any case you almost certainly see shapes layered over shapes giving a strong illusion of depth. This is the mystery and wonder of the Shadow Weave illusion. 

How Does It Do That?

Baroque shadow weave shawl weaving pattern

Baroque Shadow Weave Shawl designed by Jennifer Leigh, photo by Ian Justice

To create this illusion of depth, Shadow Weave uses tricks familiar to anyone who has ever drawn a shaded cube in an art class, like the one pictured below. Parallel lines running in different directions trick the eye into seeing 3D edges and planes like the shading on the top and side faces of the cube, and the light and dark borders around those regions make the faces recede or emerge like the dark and light edges.

A hexagon, and the same hexagon shaded to appear as a 3D cube

A hexagon, and the same hexagon shaded to appear as a 3D cube.

Shadow Weave Structure Enhances This Effect

Below on the left is a detail from the 3D illusion draft above. The warp-wise and weft-wise parallel lines are obvious. They create visual regions in the draft that appear as the central circle and the corner squares.

shadow weave 3D effect

What is less obvious are the two-thread floats that surround each of these regions, which are outlined in pink and blue on the image above to the right. In the finished cloth this has an even stronger effect than in the draft because floats always move in finishing. In Shadow Weave, the two-thread floats stand off the surface of the cloth a little bit, merging into continuous lines. These float lines outline the warp-wise and weft-wise striped regions, adding subtle texture lines to the cloth, and making them even more visually prominent. Just as in the sketched cube above, the light lines appear to come forward, and the dark lines tend to recede, further enhancing the 3D illusion.

Below is a section of finished Shadow Weave cloth, showing the raised lines the floats create:

shadow weave example

When the same cloth was on the loom, shown below, it looked completely different!

shadow weave cloth on the loom

As an added bonus, Shadow Weave creates a sturdy cloth similar to Plain Weave or 2/2 Twill. It is almost completely smooth to the hand, and excellent for blankets, shawls, and scarves because the lack of floats translates into fewer pulled threads and good resistance to wear.

Wrapping Up

Cloth is defined first by its structure. Plain Weave, Twill, Overshot, and other structures determine a lot about how cloth looks, and even more about how it feels and how it can best be used. That said, adding color can profoundly affect the visual pattern of the cloth. Color-and-Weave effects use Plain Weave and Twill structures to create incredibly different patterns without changing anything about how the cloth is woven other than the order of color in warp and weft. 
 
In the next article in this three-part series, we will explore how to choose colors for Shadow Weave. The final installment will then be an introduction to designing your own Shadow Weave patterns! 

 

Shadow Weave resources to explore:

Mary M. Atwater: “Introduction to Shadow Weave,” The Shuttle-Craft Guild Bulletin, January 1942. (Now in the public domain, and can be downloaded here: http://www.mmawg.org/Bulletin/1942Bulletin.pdf )

Marian Powell:1000+ Shadow Weave Patterns, Robin and Russ Handweavers, 1976. Sadly long out of print and difficult to find. 

Rebecca Winter: The Enigma of Shadow Weave Illuminated, Schiffer Publishing, Limited, 2023

 

All draft examples, illustrations, and photos are courtesy of Jennifer Leigh unless otherwise noted. 

 

About Jennifer Leigh

Jennifer learned to knit, sew, and embroider before starting kindergarten, and over the years has dabbled in more or less anything that can be done with string and/or fabric. She began weaving in 2014, and now considers it her primary art form. Jennifer recently retired from a 30 year career in tech and lives in Raleigh, NC, where she is a member of the Triangle Weavers Guild. She can be found online at her blog, reddit,
and Warpsters, which she started as a passion project to build an online community for weavers to share knowledge, ideas, and creativity.

 

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