Spit-splicing is one of, if not my very favorite technique in knitting. It isn't for all yarns, however. Spit-splicing is appropriate for wool yarns of at least 75% wool content. It is NOT appropriate for:
1. Superwash wool
2. Cottons, linens, acrylics.
Here's how it goes:
Now, here's the tricky part: You lay the overlapped ends across your hand and spit on it. I suppose those faint hearts who can't bring themselves to spit might use water, but I consider that a bit sissy. You get the yarn nice and wet with spit, then you gently rub it back and forth between your hands, generating both friction and heat, until you have a nice, continuous piece of yarn that looks like this:
This is the part where I get to tell you once again, the thrilling anecdote of my son's cardigan. I made him a lovely cardigan
of Lamb's Pride Worsted. I wound up having to re-do the fronts a couple of years afterwards, and I knew that I'd extensively spit-spliced the left front. When I ripped it out, I could not find the splices, and even tugging on the yarn did not cause it to come apart. I was astonished.
If one is a devotee of Shetland wool, splicing will be even more secure, and the insides of your sweaters will be a joy and delight, rather than a melange of yarn ends to bury.
I know one woman who splices when doing Fair Isle. It works to an extent, let us say. It produces a slightly more ambiguous color change than might always be desirable, but it works.
If you simply can't spit, go to your pharmacy and purchase a bottle of that lovely artificial spit. It should work very well. Just be sure it doesn't have any sugar in it, to attract beasties.
Copyright and all rights reserved to Mary English Morrison a/k/a/ The Little Yarn Shoppe of Horrors, 2005