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Weft Interlock
How do you join two different coloured areas?
When two areas of different colours meet on a slanted, curved or drawn line, you are in the weaving situation explained on the "weaving a first piece" page of the course.
When two zones of different colours meet on a single warp thread and in complete verticality, you have the option of separating the zones or joining them together (sketch B on the page weaving a first piece).
Leave the areas separate.
You will get two areas separated by a slit - this is the kilim technique.
Joining the zones.
You will need to use the perfilage technique to join them together
It is the style of your work that will decide whether you want a straight line or a more unified look.
For a straight and basic look choose the Kilim slit.
For a softer look choose the weft interlock.
What you should never do :
Never choose to do a Kilim work and then decide to join the areas when you take the work down by sewing on the reverse side. You would not be weaving but repairing a mistake. The final result may be unsatisfactory.
Weft interlock technique.
Step 1
The blue and pink areas are on the same level.
You weave in the first warp thread of the blue area with pink thread and weave your half-pass.
Step 2
On your pink half-pass, position yourself on the usual warp thread for this zone.
Step3
With your blue yarn, you pick up the border warp yarn.
The previous pink half-pass avoids making the border warp thread too thick.
The various weft interlock
Simple weft interlock
To be used if you are linking two areas of similar colour or intensity. (A and B).
If you are linking two zones made up of wool of different thickness :
You must choose to introduce the thinner wool into the thicker wool zone and not the other way round, as you will then obtain an almost total disappearance of the overlap when the next half pass is woven..
The graphical effects of weft interlock.
1. Compensated weft interlock (1): In this situation, two or more warp threads are used for the colour overlap area.
2. Single grouped weft interlock (2): only one warp thread is used for the colour overlap area but you pass several full passes of weft of the same colour in a row. The number of wefts passed can be regular (crenelated) or irregular.
3. Compensated group weft interlock (3): your overlap area consists of 2 or more full passes of weft of the same colour, regularly or irregularly.
Lateral irregular
crenel
Bi-Lateral Irregular