Poly (many), chrome (colors). In weaving, polychrome describes a category. The effect is produced by using a variety of weft colors, treadled in one of several ways to create blocks of color.
I particularly like Susan Wilson's definition of polychrome, because it's based on her research of the weaving literature to find the common factors in all the definitions. I think this is important, because I'm seeing that many books describe only one of the various polychrome treadling patterns.
Polychrome Characteristics
- multiple weft colors (2, 3, or 4)
- typically a single warp color
- the treadling pattern creates blocks of color side by side
- includes a variety of treadling methods
- commonly used with crackle, but also overshot and summer & winter
Because polychrome covers a number of treadling methods, I chose a few to start and added examples from other blog posts. I may try more later, depending on how much sampler warp I have.
- Snyder, Mary E., The Crackle Weave (1961 edition)
- Brusic, Lucy M., A Crackle Weave Companion
- Wilson, Susan, Weave Classic Crackle & More
- 4 weft colors
- woven in overshot manner
- rotates 2 colors per block
- pattern weft is one color
- tabby is a different color
- rotate through the four colors as follows:
- Block 1 (lift shafts 1-2)
- pattern: color #1
- tabby: color #2
- Block 2 (lift shafts 2-3)
- pattern: color #2
- tabby: color #3
- Block 3 (lift shafts 3-4)
- pattern: color #3
- tabby: color #4
- Block 4 (lift shafts 4-1)
- pattern: color #4
- tabby: color #1
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Sample #7 polychrome blocks detail |
- In my first picture, I can't see my blocks as distinct entities and am pondering this.
- Firstly, I'm thinking heavier pattern wefts would bring out the blocks more.
- Snyder's study recommends using 10/2 for both warp and weft, set at 24 e.p.i. I'm using 10/2s but my sett is 20 e.p.i. (as per Wilson's sampler instructions.) Can't help but wonder if I wouldn't like the tighter sett better.
- Also, I'm thinking the light color warp washes out the color effect of the blocks. I'll have to experiment with a darker warp in the future.
- Getting the sampler off the loom and wet finished with make a difference also.
- In general, the draft seemed complicated at first, but the sheds and color rotation are logical and easy to follow.
- 3 shuttles
- 2 pattern wefts in different colors
- 1 tabby weft, can be same as warp or a different color
- colors and tabby are rotated in the same sequence throughout
- treadling is a 6 pick sequence (translated here as a lift plan because I'm using a table loom)
- Block A
- 3-4 (weft color 1)
- 1-4 (weft color 2)
- tabby a
- 3-4 (weft color 1)
- 1-4 (weft color 2)
- tabby b
- Block B
- 1-4 (weft color 1)
- 1-2 (weft color 2)
- tabby a
- 1-4 (weft color 1)
- 1-2 (weft color 2)
- tabby b
- Block C
- 1-2 (weft color 1)
- 2-3 (weft color 2)
- tabby a
- 1-2 (weft color 1)
- 2-3 (weft color 2)
- tabby b
- Block D
- 2-3 (weft color 1)
- 3-4 (weft color 2)
- tabby a
- 2-3 (weft color 1)
- 3-4 (weft color 2)
- tabby b
- In light of my observations for sample #7, I decided to use a heavier pattern weft.
- warp and tabby are 10/2 in natural
- pattern wefts are red and dark gray in 6/2
- I think that was a good choice.
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Classic Crackle sample #2, details here. |
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On Opposites Photo is from my Cottage Windows table runner |
- In weaving, opposites can refer to either:
- Alternating opposite sheds. For example, a shed from shafts 1-2 is alternated with 3-4. Contrasting colors are used for the wefts. Tabby is optional, but produces a more stable fabric.
- Pattern blocks. For example, one pattern block is treadled with shafts 2-3 for so many shots, and then treadled 1-2 for so many shots. The second block is treadled with the opposite shafts 4-1 and 3-4. With this treadling, tabby must be used to avoid long warp floats.
- produces a weft-faced fabric
- See Weaving On Opposites for more information.
It is clear you are having great fun down this rabbit hole! :D
ReplyDeleteIn the first sample the color changes are much less dramatic. It reminds me of the old "off air" television patterns back in the day.
ReplyDelete