Category: Knitting Techniques

A Study of Pooling in a Variegated Sock YarnA Study of Pooling in a Variegated Sock Yarn

May 5, 2010May 5, 2010 | LindyLindy | 0 Comments | 12:38 pm


Several days ago, I decided to knit a pair of plain vanilla socks using Serenity Sock Weight Yarn (Premier Yarns) in the colorway Amethyst. This was a yarn I had purchased at my local Hobby Lobby and had been sitting in my sock yarn stash for a few months. In the skein, the yarn appears to be a mix of greys and purples, and I thought it would result in a striping of the socks. The label does not indicate that the yarn is “self-striping”, but the picture on the label shows a sock with an interesting variation of stripes.

Since I had never knit with this yarn, I knit a circular swatch to determine needle size and gauge before starting on my socks – and this is where my study in “Pooling” began. I started with US 2 (2.75 mm) needles and cast on 64 stitches (which is what I would use for my socks with a gauge of 7 stitches per inch). As I worked on the swatch, I noticed that the yarn was not knitting up in the stripes the way I had anticipated – in fact, it seemed to be predominately purple on one side of the swatch and predominately grey on the other side.


Obviously, I had some “pooling “ going on. Pooling is an effect that occurs when a variegated yarn knits up in “pools” of color, rather than in stripes. Now, I wasn’t really sure I liked the effect – and my stitch gauge was 6.25 spi, rather than the 7 spi I wanted.

So, I decided to do a second swatch with fewer stitches, a smaller needle – and because I had read about pooling in a Rav thread, I also decided to knit from the outside of the skein instead of the inside. I cast on 52 stitches on size US 1.5 (2.50 mm) needles and knit away – and I got more striping – not even stripes, but definitely stripes on both sides of the swatch.


So, I took a picture of the two swatches and posted a comment on Ravlery under the thread, “Examples of Pooling Good & Bad”, stating what I had observed along with my assumption that the change was probably due to knitting from the outside of the skein – and completely ignoring the fact that I had changed the number of stitches in the swatch and this might also be contributing to the way the colors were knitting up.

I must admit, I did not anticipate much of a response to my comment in this thread. But I received several. It’s one of the things I love about Ravelry – fellow knitters are always willing to share and question things. Anyway – after reading the comments, I decided I needed to do a little more work before I could actually answer my fellow Ravelers’ questions.

Off I went to swatch again – this time I decided to start from the inside of the skein, use US 2 (2.75 mm) needles and begin by casting on 72 stitches. I knit approximately 1.5 inches, then purled and decreased the number of stitches to 64 stitches, knit another 1.5 inches, purled and decreased to 54 stitches and knit another 1.5 inches. Here’s a picture showing how the yarn pooled with different numbers of stitches.

So – in response to Robocass and Hypercycloid, who asked me if the difference might be due more to the difference in the number of stitches in my swatches: Clearly, the number of stitches used results in very different color patterning and it doesn’t really matter whether I knit from the inside or the outside of the skein.

Hypercycloid also asked about the length of each of the colors in the yarn. Hmm – I hadn’t thought about that, so I got out the measuring tape and discovered that each purple section of the yarn was approximately 19 inches, while the grey sections were approximately 12 inches. Not quite, but almost a 3 to 2 ratio. Statnerd suggested I count the number of grey stitches compared to the purple stitches in my wider swatch – I did and ended up with 27 stitches of grey to 37 stitches of purple. Again, this is close to a 3 to 2 ratio of purple to grey. All of you were correct in your observations that the colors shift around the circumference of the swatches – and due to the differences in the number of stitches, the colors stack up very differently for different numbers of stitches.

Zgma commented:

“It doesn’t look like a self-striping yarn to me. The striping you got in the top sample is a result of the colors pooling in a way that looks like stripes, not actual “self-striping”. When yarns are labeled self-striping, it is because the runs of color are large enough that for the project intended (as in, socks for self-striping sock yarn), the color will last for all the stitches in at least one round or row, usually more. When a particular color (for instance, the black in your sock samples) lasts for part of a row, but then in the next row the color occurs before or after it did in the previous row in such a manner that it looks like striping, it doesn’t mean that the yarn is self-striping – just that it is prone to pooling in a stripey way.”

Yep, you are right about that.

To each of those that took the time to comment — thanks! I learned a great deal about pooling and variegated yarns.

I did a little internet surfing on the subject, as well. I found two informative posts about Pooling — One from the Yarn Harlot and the other from Knitting Sutra.

So – I am not really sure if I like this particular yarn – but I have decided to proceed with using it to knit a pair of plain vanilla socks. I am going to use US 2 (2.75 mm) needles with a gauge of 6.25 spi and cast on 54 stitches (this should fit my foot). I’ll post pictures of the final result.

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Designing a Sweater without a PatternDesigning a Sweater without a Pattern

April 24, 2010April 24, 2010 | LindyLindy | 0 Comments | 7:31 am

In previous posts, I have discussed how to use Elizabeth Zimmerman’s Percentage System (EPS) to design and knit a sweater and how to modify a written pattern to adjust for changes in sizing and/or gauge. Today, I will briefly describe the process of designing a sweater without a written pattern. I learned this process in depth when I first knitted a sweater using my knitting machine. Knitting garments on a knitting machine requires extensive set-up and calculations before you can even begin to knit. Regardless of whether you are hand knitting or machine knitting – the process and calculations are the same.

As in the previous design techniques, you start with a good set of body measurements and a gauge swatch to determine your stitch and row gauge. You will also need to factor in the amount of ease you wish to have in your completed sweater.

Any sweater has several basic elements: The front & back, the sleeves and the neck. Sweaters come in two basic forms – the pullover and the cardigan. If you take a minute to think through all the sweaters you have seen, you will realize that all of them are some variation of these two basic forms. So, let’s start by breaking down the elements of a basic pullover sweater.

Elements of a Pullover Sweater:

  • The Front & Back – in a very basic design, the front and the back are the same up to the point where one shapes the neckline. The Front and Back make up the tube of fabric that goes around the entire body – thus, the back consists of one-half of the total number of stitches needed for the body/chest measurement and the front has the other half. In our basic design, the back/front is essentially a rectangle – and you need to determine the width and the length from your own measurements. If you plan to knit this sweater in the round, then you will calculate the total number of stitches based upon the body/chest measurement plus ease. [(BM + Ease) X SPI]. If you plan to knit this sweater in pieces and then sew the pieces together, you will calculate the number of stitches needed for the front/back by dividing the Body/chest measurement by two and then adding in Ease and multiplying by your stitch gauge. [((BM/2) + Ease) X SPI]. For a set-in sleeve, you will also need to calculate the shaping of the armhole. When knitting in the round, at the point you begin shaping the armholes, it is best to knit flat and knit the front and back separately.
  • The Neck – the most basic neck for a pullover sweater is a round or crew neck shape. In our basic sweater design – a portion of the stitches of the center back are used for the back of the neck, while in the front there is some shaping done to make the front of the neck slightly lower than the back. The stitches not used in the neck are used for the shoulders and form the shoulder seams of the sweater. It is best to use live stitches for necklines. This allows you the needed stretch for the fabric to go over the head of the wearer. One must also keep in mind that the average woman’s head has a circumference of 22 inches. Thus, there needs to sufficient width allocated to the neck to allow the head to pass through it.Back Neck – for the basic sweater pattern, the back does not have any shaping to it. It is simply divided into three sections: Left shoulder, Neck and right shoulder. The number of stitches assigned to the back neck stitches is somewhat proportional to the chest measurement. Generally, the wider the chest, the larger the neck circumference. In this basic sweater design, there should be an equal number of stitches allocated to the shoulders, with the remaining stitches placed on hold for the neck. You determine the number of back neck stitches by multiplying your stitch gauge by the width of the back neck. You then subtract the number of back stitches from the total number of stitches for the back at the shoulders – this will give you the number of stitches for the shoulders. This number needs to be divisible by 2, so you may need to take 1 stitch from your neck stitches to even it out.

    Front Neck – the shaping for the front neck begins below the last row of the shoulder. For women, the depth of the neckline starts 2.5 to 3 inches below the shoulder, for men, the depth is 3 inches to 3.5 inches and for children the depth is 1.5 to 2.5 inches. This depth is entirely a matter of preference. The front neck is shaped as a semi-circle by gradually eliminating stitches on either side of the center front neck stitches. Thus, the center front stitches are placed on hold and then decreases are done on either side of these stitches as you knit up to the shoulders. This shaping will occur concurrently with the armhole shaping

  • The Sleeves – the most common styles of sleeve in commercial sweaters are the drop-sleeve and the set-in sleeve. For this design, I will cover the set-in sleeve. A Set-in Sleeve joins the body of the sweater at the armhole and the top of the shoulder seam. Set-in sleeves require shaping at the top of the sleeve itself as well as corresponding shaping in the front and back. The shaping is made by a series of bind-offs, increases and/or decreases. To design your sleeve you must have your sleeve length, the width of the sleeve at the armhole, the width of the sleeve at the elbow and the width of the sleeve at the wrist. You also need the depth of the armhole. There are quite a few calculations required to be able to knit a properly fitting set-in sleeve. You begin by calculating the shaping of the sleeve from the wrist to the underarm and then calculate the shaping required to form the rounded sleeve cap. Shaping is achieved by a series of increases from the wrist to the underarm, followed by bind-offs and decreases to form the sleeve cap.

Now let’s look at a basic cardigan sweater.

Cardigans are most often knitted flat – either in separate pieces or in as a one wide piece on a long circular needle. They can be knitted in the round using a steek to separate the two fronts when finishing the sweater. Shaping for armholes and neckline are mirrored for the right and left fronts. In addition, there is a knitted band of fabric that overlaps at the center front – this band can be knitted concurrently with the front using a pattern stitch or can be added to the front by picking up stitches along the center front edge after the front has been knitted.

The calculations for this sweater are essentially the same as for our basic pullover – with the exception of the front. A cardigan sweater has two front pieces that meet and overlap in the center of the garment. This means that each front piece is one-half of the front piece of a pullover sweater, plus some added width for the overlapping parts(buttonbands or borders). In our basic sweater design, you simply add the desired width of the buttonband to each front piece. For example, the front on our pullover measures 40 inches. For our cardigan, each front piece would be half of that or 20 inches and the buttonband would be 2 inches wide: 20 + 2 = 22 inches. My Excel Spreadsheet includes a section on calculating the fronts for a cardigan.

I have created an Excel Spreadsheet for all the calculations required for a basic pullover with a set-in sleeve. Click here to download the spreadsheet: Sweater Calculator.

Using this calculator and your own gauge, you now have all the calculations required to knit your pullover sweater. You can knit this sweater from the top down or from the bottom up. The shaping for a top-down sweater is done in the reverse order of a bottom-down sweater.

Terms of Use: You may electronically copy and print to hard copy portions of the spreadsheet for the sole purpose of using materials it contains for informational and non-commercial, personal use only. Any other use of this spreadsheet — including any commercial use, reproduction for purposes other than described above, modification, distribution, republication, display, or performance — without the prior written permission of Lindy’s Knits & Laces is strictly prohibited.

Today I have briefly outlined the basics of designing your own sweater using two basic sweater designs. From these two basic designs, you can create a sweater according to your own measurements out of any weight yarn. I recommend you give it a try. Listed below are some references for your further exploration – I have only scratched the surface of this topic. Happy Knitting.

If you find this post and/or my spreadsheet helpful , please leave me a comment. Thanks!

For further exploration – check out these sources:

Maggie Righetti, Sweater Design in Plain English
Leslye Solomon, The Uncomplicated Knitting Machine
Deborah Newton, Designing Knitwear.
Barbara G. Walker,Knitting from the Top Down.
Vogue Knitting

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Part 2: Freeing Yourself from a Pattern – Step 2: Analyze the Pattern and Modify It to Fit.Part 2: Freeing Yourself from a Pattern – Step 2: Analyze the Pattern and Modify It to Fit.

April 2, 2010April 2, 2010 | LindyLindy | 0 Comment | 11:59 am

In my last post, I went through all the necessary measurements you need to take in order to ensure that you can modify or create any sweater pattern you wish.
If you haven’t done so, you may want to go back and read this information and take your measurements.

Today I will discuss how to analyze a written pattern so that you can use it as a guideline to knit your own well-fitting garment. First, get your favorite sweater – you will be using it to help you analyze the pattern you have selected.

Now, let’s take a look at this sweater – you need to understand what it is about this sweater that makes it your favorite. Is it a pullover or a cardigan? Is it close-fitting or loose? How long is it? What type of sleeve does it have (Set-in, drop, raglan or other)? What type of neckline ( Round, V-neck, Boat Neck, Square, or other)? Now compare this information to the sweater pattern you want to knit. Just a word of caution, here, if the pattern you have chosen differs dramatically from your favorite sweater – you may not be happy with the end result. Then, again, if it is a conscious choice, you may.

Now let’s look at the sizing given in the pattern. Sizes are often stated as “Small, Medium, Large, Extra-Large”, etc. Some patterns will give sizing using finished chest/bust circumference, while others will state the sizing in terms of actual body measurements. If the pattern sizing is in terms of finished measurements, it will have the ease incorporated into it. If in actual body measurements, you may have to determine how much ease is factored into the garment. The amount of ease is both a matter of personal preference and a property of the design of the sweater. To determine how much ease you prefer – pull out your favorite sweater, measure the chest and compare the measurement to your actual body measurement. The math is simple: Subtract your body measurement from the garment measurement – this will give you the amount of inches of ease.

Now – take a look at that pattern you are considering– is there a size that matches your actual chest measurement PLUS that amount of ease? If the answer is “Yes” – then, if your gauge with your yarn matches the pattern, you are good to go.

If you find that your size is not represented within the pattern, you will need to adjust the body width.

For a body width less than the smallest size given in the pattern, recalculate the number of stitches to cast on and then follow the directions for the smallest size.

For a body width greater than the largest size given in the pattern, recalculate the number of stitches to cast on and follow the directions for the largest size.

For a body width that is in between sizes, recalculate the number of stitches to cast on and then follow the directions for the closest size.

In all cases, the formula is: SPI (your gauge) X body width

There are some additional elements to consider and modify if you are adjusting body width:

If the sleeve is a drop sleeve design, be careful not to add too much body width or the shoulders will be too wide. If you need more width in the hip area than the shoulders – use an A-Line shape for the body – which means that you will need to factor in some decreases from the hip to the underarm.

If the sleeve is a set-in sleeve design, remember that as you change body width, you must also adjust the shoulder width because the top of the sleeve should hit the end of the shoulder.

The sleeve length must be adjusted when adding or subtracting body width. This is because if you add width or subtract width to the body, you have also done so to the shoulder width – and shoulder width contributes to the total sleeve length. Verify the length you need for your sweater and make adjustments accordingly.

Additional considerations in modifying a written pattern:

Does this pattern incorporate a textured or colored stitch pattern? If so, what is the base stitch pattern? To determine this, look at the instructions and the graph for the stitch patterning. Most stitch patterns are a multiple of a base number of stitches – i.e. 8 stitches over 24 rows. So, if you are reducing or increasing the number of stitches to cast on – you will need to adjust this number so that it divisible by your base stitch pattern. For example: You have determined that you need to cast on 214 stitches and your base stitch pattern is an 8 stitch repeat. If you divide 214 by 8, you get 26.75 – which is not a even number. You will need to increase the number of stitches you cast on to 216 – which is evenly divisible by 8.

Today, I have discussed how to use a written pattern as a guideline and modify it so that it will fit properly. This works best if your gauge matches the pattern, but your measurements do not.

Next post, I will discuss the notion of designing your own sweater from your choice of yarn, a basic design and the stitch pattern of your choice.

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Part 1: Freeing Yourself from a Written Pattern or How to Use the Yarn of Your ChoicePart 1: Freeing Yourself from a Written Pattern or How to Use the Yarn of Your Choice

March 19, 2010March 19, 2010 | LindyLindy | 0 Comment | 8:00 am

In my last post, I discussed the issues related to trying to substitute one yarn for another and suggested at the end of my post that if you want to use a yarn of a different weight & gauge than what the pattern calls for – you can design your own custom sweater using the pattern as a guide.
Today, I will focus on the first of two approaches for doing just that. WARNING – you must be prepared to take measurements, do a proper gauge swatch and get out your calculator. Yes, we will be doing some math…

Approach #1 – Use EZ’s Percentage System.

Elizabeth Zimmerman published her “unvented” percentage system for designing sweaters in the Knitting Workshop and gave us many examples of how to use it in her other books. EZ was always someone who dealt with knitting in a pragmatic fashion and basically cut through all the fluff and gave clear explanations of basic concepts. I encourage you to read all of her books – but if you want the complete explanation of her percentage system — Knitting Workshop is the source.

I am describing EZ’s Percentage System for two basic sweater designs – the yoke sweater and the Raglan sleeve sweater. Both are knitted in the round. You need to take some basic body measurements:

Width around the chest (Chest Measurement) [CM] The Chest Measurement is the “Key Measurement” (100%) and the starting point.
Body length to Underarm (Underarm Measurement)
Sleeve length to Underarm (Sleeve Length)
You must know your stitch gauge or Stitches per Inch [SPI]

The math follows:
CM X SPI = # stitches needed for the body of the sweater.

For a Yoke Sweater the basic percentages of the above are:
Body = 100%
Wrist = 20%
Upper Arm = 33%
Underarm = 8%
Circumference of Shoulders = 133%
Neck = 40%

For a Raglan-Sleeve Style Sweater the basic percentages are:
Body = 100%
Wrist = 20%
Upper Arm = 33%
Neck = 40%

To calculate – multiply the total number of body stitches by the percentage.

I think you get the idea. If you want to try using EZ’s percentage system, I recommend you either borrow EZ’s Knitting Workshop from your library or a friend or purchase it.

Here’s a link that will take you to Amazon.com: Knitting Workshop

I have also created an Excel Spreadsheet that will make the calculations for you. You can download it here: EPS_Calculator Spreadsheet.

Next post, I will outline another approach to sweater design.

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