Aquí os dejo el tutorial de como hacer el pelo a muñecos, el cual utilicé para hacer el pelo a la Muñeca de Paula, espero (aunque esté en inglés) que os sirva como me sirvió a mí.Os dejo el enlace original del tutoria, para que veais más fotos.
Amigurumi hair tutorial
To make the hair for an amigurumi, have the head already made. I like to work with 5's since for me they're a lot easier to increase and decrease mathematically. For this example I'll use a head size with the diameter being 50 sts in the largest round. The head will be increased by 5 to be 50 sts at it's widest, so rounds 1 - 10 will increase from 5 to 10 to 15 to 20.... up until you reach
50 in round 10. Make rounds
11 - 20 50 sts in each round, and then began decreasing rounds 21 - 27 by 5 sts
each round so that it goes 45 to 40 to 35 to 30...until you get to 15 sts in
round 27. (Of course all this is just for explanatory purposes only, and you
can make the heads whatever size you'd like, I'm just including head dimensions
so that it'll be easier to understand the hair instructions.) At this point I
usually fasten off the end and leave around 12 inches of yarn to sew
the head to the body at a later point.
Round 1- Make and adjustable ring and sc 5 sts- 5 sts.
Round 2- 2 sc in each st- 10 sts.
Round 3- [sc 1, 2 sc in next st] 5 times- 15 sts.
Round 4- [sc 2, 2 sc in next st] 5 times- 20 sts.
Round 5- [sc 3, 2 sc in next st] 5 times- 25 sts.
Round 6- [sc 4, 2 sc in next st] 5 times- 30 sts.
Round 7- [sc 5, 2 sc in next st] 5 times- 35 sts.
Round 8- [sc 6, 2 sc in next st] 5 times- 40 sts.
Round 9- [sc 7, 2 sc in next st] 5 times- 45 sts.
Round 10- [sc 3, 2 sc in next st] 5 times- 50 sts.
Rounds 11-17- sc in each st around- 50 sts, fasten off and leave a longish tail for sewing the hair to the head.
For me, this size wig cap is sufficient for this size head, especially since I like to have a little more room to shape the hairline by embroidering the hair to resemble someone's actual hairline with bangs, or sideburns, etc.
Now is where it begins to get more creative. Determine where you'd like to place the hair, usually it helps to experiment with eye placement at the same time. I don't fasten the craft eyes to the head until I've seen both where the hair is going to be and I'm comfy with how the eyes give the doll an expression. Once you've made that decision it's time to sew the hair to the head.
(Just a quick aside- since there are different ways to make amigurumi hair you can also cut lengths of yarn in the hair color and knot it to the wig cap in a methodically spaced manner and then pull the hair up through the wig cap so that the knots are on the inside of it and then sew it to the head and be done with it. This isn't how I typically do the hair for my amigurumi and I don't have images illustrating this way in this tutorial, maybe I'll make another one at a later date.)
Using the aforementioned tail, as well as a yarn needle, sew the perimeter of the wig cap to the head. This is really the only place that I attach the wig cap the the head, it's proven sturdy enough and there's no need to make this more time consuming than necessary. Sometimes when you're embroidering the hair onto the wig cap you'll catch part of the head underneath the wig cap with the needle, its no big deal and if you're worried about the wig cap coming off of the head, this'll be an additional method of security. You can use the remaining yarn on your needle to start embroidering the hair, or else just weave it into the head/wig cap to get to the next part.
Another tip is that after you've pulled a length of yarn to use to embroider the hair, pull the yarn so that the needle is at the halfway point of the length of yarn. You'll use the same amount of yarn to make the hair, but it'll be thicker and faster when you double the yarn on the needle.
Since the head isn't attached yet to the body when you start a new strand or double strand of yarn, you can tie a knot to keep it from coming loose and then pull the needle up through the head. Or you can just do what most embroiderers do and not knot it with the intention of it being secured eventually by just going over the yarn with your stitches. I tend not to secure it, partly because it's an additional step, and partly because I have a 3 year old and 1 year old who both play and pull and I've never had any issues with hair coming loose. Though, as I've said before, it really is all up to you and your comfort level, if you're making it for someone younger or who you think will pick and pull at it, then by all means knot away!
Whether you're making a boy or a girl will determine whether you'll want to part the hair, or where you want to part it. With masculine hair I tend to keep it shorter and just have a small side part, I also begin by embroidering the back of the head with short stitches, working my way up the head so that it looks like the hair/yarn at the top of the head is laying on top of the hair lower down the head. I do this across the back of the head. Then as I begin to get higher I take a break doing that and move to the top of the head where I've decided upon the part. Here, I start using longer stitches, and make the hair part evident by embroidering up and down the head with the yarn always going along the same line up at the top of the head indicating a hair part. I think what I'm talking about now will be better illustrated by the images. Once you've filled in the hair as much as you like, you can add embellishments like little bangs or sideburns by just embroidering a bit more in the front, and that way it also covers up the edges of the wig cap as well.
For the girlish hair styles discussed in this tutorial I keep it close to the head with either a ponytail or pigtails or braids. For a ponytail you just embroider the hair in the direction of where you want the hair around the head to gather to be tied. Do this back and forth until you're happy with the results and weave in the end of your yarn. Now cut yarn in the desired length so that when it's doubled it'll be long enough to resemble two strands of hair pulled back in a ponytail. Do this with as many lengths of yarn that you need to have a thick enough ponytail for your liking. Using the yarn lengths that you've cut, string them through the hairline and then you can either knot them or leave them as they are, and then gather them into the ponytail. Fasten by either using a rubber band, or just a scrap piece of yarn to tie the hair back.
For pigtails/braids it's pretty much the same idea, except you'll be embroidering the hair back and forth across the head to where either ear would be. When you're cutting the lengths of yarn to finish it up, you still need to double the yarn to ensure that you have long enough lengths for the pigtails, and even a bit longer for the braids since they tend to shrink up the yarn with their bulk.