Sunday, January 10, 2016

A revised taxonomy of hand knitting

An outline of Hand Knitting to be expanded and extended, this is a post in progress.

Hand knitting is a process where an array of loops of yarn forming a textile are held on one mandrel, and a second mandrel is used to add loops of yarn to extend the textile. In the process, the mandrels act as levers to manipulate the loops of yarn. Hand knitting can be organized by the relative orientation of the levers, the available mechanical advantage, and the diameter of the mandrels.

A higher mechanical advantage means that one can knit faster with less effort.  Less effort allows longer knitting sessions so much more knitting can be accomplished.  Less effort means less stress on the hands and wrists and thus less damage to the hands and wrists during extended knitting  or repeated knitting sessions. In knitting leverage determines the mechanical advantage, and hence speed of knitting, stress on hands and wrists, and type of fabrics that can be produced.

The orientation of the levers determines the nature of the looping process.  The diameter of the mandrels determines the fineness of the resulting textile.  These characteristics do not define the systems, but rather allow ranking them along various different continuum.

Knitting needles in the commercial market place for the last century have mostly tapered to a (rounded) point.  Nevertheless there are several lines of evidence suggesting that in the past, blunt knitting "needles " were used.  Physics/engineering suggest that blunt knitting needles have significant advantages when adequate leverage is is available to open the working stitch.  With hand held needles the wedge of the point being pushed into the working stitch provides additional mechanical advantage to opening the working stitch. On the other hand, holding a fine needle firmly to put it into the stitch is a major problem in the ergonomics of hand held knitting with fine needles. 

In the past, knitters tended to use much finer knitting needles, sometimes referred to as knitting wires or just "wires".  Since I am moving to finer, blunt knitting tools,  I am going to call them wires (W).



Hand knitting with double pointed needles (DPN)
    1. Generally pointed needles (Hand held knitting with blunt needles is perfectly possible, but it requires keeping a correct angle between the needles, which is different for each stitch, so it requires a particular set of skills, which are not commonly taught.  When used, blunt needles can improve speed, but increase effort.)
    2. Both needles supported with hands Working needle must be griped firmly so it can be pushed into stitch, or to resist the left needle pushing the working stitch onto the working needle.  Bracing the needles against the forearm as Mariam Tegels  improves ergonomics.
    3. Yarn feed controlled by right hand, or left hand or looped around neck or with pin on chest
    4. Use of needles longer than 12" is awkward (Trying to hand-hold long gansey needles is an exercise in frustration. (However, with a knitting sheath, gansey needles are the fastest and easiest way that I know to knit large objects.)
    5. Needles generally stiff, or used as if stiff
    6. Either hand may control the yarn, or yarn may be looped around neck or through pin on chest
    7. Poor ergonomics
      1. motions by small muscles of hand/forearm
      2. large motions - must exceed distance of taper on needle tip
      3. available leverage ~ 1:3
      4. ergonomics can be improved by using longer needles and bracing the working needle against the forearm and then using upper arm/shoulder muscles to drive working needle
    8. Least expensive knitting tool kit
    9. Suited for coarse and loose fabrics
    10. Typical needle sizes are larger than 2 mm
    11. Knitting speed is slow
      1. knitting motion must exceed taper on pointed needles
      2. motion is effected by small muscles
      3. Irish Cottage and other flamboyant knitting styles increase required motion range requiring more effort.
      4. limited leverage
    12. Pointy needles are a hazard for small children
Hand knitting with circular needles
    1. Generally pointed needles ((blunt needles not commercially available)
    2. Both needles supported with hands
    3. Yarn feed controlled by right hand, left hand or looped around neck or with pin on chest
    4. Poor ergonomics
      1. motions by small muscles of hand/forearm
      2. large motions - must exceed distance of taper on needle tip
      3. available leverage ~ 1:3
    5. Compact knitting tool kit
    6. Suited for coarse and loose fabrics
    7. Typical needle sizes are larger than 2 mm
    8. Knitting speed is slow
      1. knitting motion must exceed taper on pointed needles
      2. motion is effected by small muscles
      3. Irish Cottage and other flamboyant knitting styles increase required motion range requiring more effort.
      4. limited leverage
    9. Safer than DPN
Hand knitting with single pointed needles (SPN)
    1. Generally pointed needles  (blunt needles not commercially available)
    2. Both needles supported with hands
    3. Yarn feed controlled by right hand, left hand or looped around neck or with pin on chest
    4. Use of needles longer than 12" awkward, Alternatively a flexible cable can be attached to the end of the needle
    5. Needles generally stiff, or used as if stiff, some needles have flexible ends (e.g., cords)
    6. Poor ergonomics
      1. motions by small muscles of hand/forearm
      2. large motions - must exceed distance of taper on needle tip
      3. available leverage ~ 1:3
      4. suited for coarse and loose fabrics
      5. typical needle sizes are larger than 2 mm
    7. Knitting speed is slow
      1. knitting motion must exceed taper on pointed needles (more distance to travel results in slower knitting)
      2. motion is effected by small muscles
      3. Irish Cottage and other flamboyant knitting styles increase required motion range requiring more effort.
      4. limited leverage
    8. SPN may be safer than DPN?
Hand knitting with wires and knitting stick (Knitting sheaths, knitting pouches, and gansey knitting represent a continuum of more than a dozen knitting techniques. These techniques allow production of fabrics that cannot be reasonably knit with the above hand -held knitting techniques. Effort is delivered by the whole hand pushing against a lever, so the ergonomics are good and the potential effort can be very large.

Frankly, as I first worked out the details of using a knitting sheath/knitting stick, my response was: "This is wonderful, why didn't anyone tell me about knitting sheaths?" My second response was, "WTF, WHY DID NOT ANYONE TELL ME THAT THERE WAS AN EASIER WAY TO KNIT!!"  Consider for example the picture on pg 18 of Nancy Bush's Folk Socks (1994).  The subject is a woman using a knitting sheath to knit socks, but Nancy Bush does not mention the knitting sheath; she simply captions the photo, "Girl knitting on West Pier, Whitby".

Mary Thomas's Knitting book discusses and dismisses Knitting sheaths and knitting belts as artifacts of history.  The only modern book to discuss knitting sticks as important to knitting is Mary Wright's Cornish Guernseys and Knit-frocks.  And, Wright does not address how the various techniques are/were performed.  Rutt mentions the techniques with photos, but does not recognize that use of a knitting sheath/knitting belt allows production of  fabrics that cannot be reasonably produced with hand held needles, or that such improved the ergonomics and speed makes commercial knitting feasible.
A fine, skin soft fabric,
with excellent warmth and minimum weight and bulk.
Produced with knitting sheath and wires
3-ply fingering weight (1650 ypp) 
knit on 1.5 mm wires 
gauge is ~150 stitches per square inch
    1. Wires generally short and stiff (however can be used for wires as fine as 0.5 mm that are very flexible)
    2. Wires may be either blunt or pointed
    3. Knitting stick supports working wire
    4. Knitting stick may damage fragile needles
      1. fine needles should be solid metal
      2. larger needles may be wood, bone, or tubular metal
    5. Works best when needle/wire fits needle hole closely, however a skilled knitter can work with a very loosely fit wire
    6. Knitting stick moves with needle (e.g., goose wing pivots on hip)
    7. Excellent for small objects such as hats, socks, mittens and gloves
    8. Good ergonomics
      1. motions by large muscles of upper arm/shoulder and transmitted to hand by large tendons/ wrist may be kept straight
      2. available leverage is between 1:20 to 1:50
      3. versatile tool kit for knitting
    9. Knitting speed is good
      1. blunt wires used to reduce required motion
      2. good leverage is available for rapid motion
      3.  suited for all needle sizes 
    10. Can produce weatherproof fabric from a single worsted spun yarn (or can greatly facilitate Fair Isle and other 2-yarn techniques)
    11. Steel needles can be used to knit metal wire 
    12. Various kinds of knitting sticks can be improvised or bundles of straw or feathers tied with yarn can be tucked in to a belt.
    13. Needles fixed in knitting stick can be a hazard if small children are around
    14. Perhaps hardest part of learning, is learning how to properly place and hold the knitting stick in place.  Knitting stick is at waist on right side of body or over the point of the right hip depending on the length of needles used.  Work area should be directly in front of knitter.
Shetland knitting  
Again the use of knitting pouches is ignored in modern books on knitting.  In the photo, on pg 45, of Poem in Color, knitting in the Bohus tradition, by Wendy Keele, the knitting pouches of several knitters can be clearly seen. In the photo of Annika on pg 34, she is likely using a knitting pouch, and yet Keele does not mention knitting belts despite extensive details about the work.

Use of a knitting pouch or knitting sheath makes Fair Isle and twining techniques much, much easier.
    1. Uses leather knitting pouch usually stuffed with horse hair is used, however other cultures use woven mats and the physics is the same.
    2. Needles may be either blunt or pointed, but must be "double pointed"
    3. Knitting pouch is used to support the working wire
      1. leather belt is gentler on needles than a knitting sheath, better for use with wooden, plastic, and tubular needles.
      2. needles may be either short or long
    4. Wires may be either stiff or flexible
    5. Good ergonomics
      1. motions by large muscles of upper arm/shoulder and transmitted to hand by large tendons/ wrist may be kept straight
      2. available leverage is between 1:20 to 1:100 depending on needle length
    6. Most versatile tool kit for knitting 
    7. Knitting speed is excellent
      1. blunt wires may be used to reduce required motion /increase speed
      2. good leverage is available for rapid motion
    8. Excellent for Fair Isle and lace 
    9. Can produce weatherproof fabrics via Fair Isle or "weaving" or twining/ twisting
    10. Suited for wire sizes smaller than 4 mm
    11. Excellent for knitting in a car or on an airplane
    12. Needles in pouch can be a hazard if small children are around
Spindrift (~2,100 ypp)
knit on 1.75 mm (pointy) needles into
 a light weight, low bulk, elastic, warm fabric.
The yarn band recommends 60 stitches per square inch,
that feels loose to me,
 I like it at 192 stitches per square inch. as shown above. 
Last night at Alpine Meadows, it was snowing hard, with 96 mph gusts of wind.  
Welcome to El Nino 2015.

Gansey knitting  is a powerful form of hand knitting.  For example, commercial 5-ply gansey yarn can be reasonably knit using hand held needles at stitch densities of 80 stitches per square inch. but with gansey knitting techniques, such yarns can be reasonably knit at 120 stitches per inch. Such high density fabrics are unbelievable warm (without bulk or weight) to anybody that only knows the fabrics knit with hand held needles or frame knit, or store bought. Such fabrics work best when "knit to fit".   Small details in fit hugely affect the warmth of such objects, thus bespoken objects can be much warmer than ready to wear objects, and this is likely the origin of the myth that hand knit is warmer than store bought.  The truth is that densely knit objects that are knit to fit are warmer than store bought. Gansey  knitting was used for industrial scale knitting of objects for export. Today, commercial hand knit objects are knit at a looser gauge using knitting pouches.

I would call, all objects knit with long needles that provide great mechanical advantage  "traditional gansey knit".

Nevertheless, I can knit fabrics with a  knitting sheath that I cannot knit with a leather knitting pouch. Knit from fine woolen yarns they seem magically warm.  Knit from fine worsted yarns they are silken smooth.  Knit from coarse worsted yarns, they are extraordinarily durable. Quickly knit from coarse semi-worsted yarns, they are cheap.  As garments, they can be too warm for centrally heated environments such as modern transportation, homes, shops, or churches. Or, fine (fingering or 0 lace) yarns can be gansey knit with fine wires (0.8 mm into very thin fabrics that are light weight, cool and so delicate as to be trnaslucent. Gansey knitting can reasonably produce all of these diverse fabrics.
    1. Wires may be either blunt or pointed, but must be DPN
    2. Wires are flexible and part of knitting process is driven by the spring return of the needle (steel springs are faster than muscles) (required flex less then 5%)
    3. Wires are long
    4. Wires are held in the knitting sheath by friction caused by the needle being flexed out of the axis of the needle hole in the knitting sheath/ when flex is relaxed, needle slides in and out freely/ less need for needle to fit needle hole
    5. Knitting sheath may damage fragile needles 
      1.  steel needles may be bent 
      2. fine wooden needles will likely break
    6. Suited for fine, tight knitting 
    7. Can produce weatherproof fabric from even worsted spun yarn.
    8. Fastest way to knit large objects
    9. Excellent ergonomics
      1. motions by large muscles of upper arm/shoulder and transmitted to hand by large tendons/ wrist may be kept straight
      2. available leverage is between 1:20 to 1:100
      3. some motions produced by return spring action of spring loaded needle
      4. Knitting sheath is placed over right buttock, and working needle arches forward under right armpit into the work zone.  Right arm rests on needle, and larger needles help support right arm.( place holder for motions/ different motions for pointy and blunt ganesy needles)
    10. Can be used with any size needle (fine needles are metal/ large needles are wood or other)
    11. With an Aran weight or Lopi yarn, and 2.25 mm blunt gansey needles, one can knit a weatherproof fisherman's sweater in a week. For example; my old gardening gansey of  MacAusland heavy 3-ply Aran weight was weatherproof at 63 stitches per square inch and  the Lopi below forms a weatherproof fabric at only ~60 stitches per inch.   This is  between 2 and 4 times as many stitches per square inch as many Aran/bulky/Lopi yarns recommend.
    12. Knitting weatherproof fabrics is ferocious work, but no other hand knitting technology can produce such warm fabrics so fast.  These fabrics are more stable and stronger than felt and more flexible with better drape than felted knitting.
    13. Long needles are not suited for knitting in cars/aircraft.
    14. Possible hazard with small children around
      1. Weatherproof gansey fabric 
        ~120 stitches per square inch
        knit from 5 x 2-ply =  10-strand, 1,000 ypp worsted spun yarn
        gansey knit on 1.5 mm wires with knitting  sheath
      I made a lot of that black 6-strand/ 1650 ypp sock yarn,
      This sock is being knit on 1.5 mm gansey wires with sheath
      at a gauge of 192 stitches per square inch.
Swaving
    1. short needles (called "pricks")
    2. stiff needles
    3. curved needles
    4. needles rotate in knitting sheath (needle holes are often lined with metal or entire knitting sheath is often made of ceramic or metal, needle hole often needs lubrication)
    5. needle must fit the needle hole very closely, and lubricant often needed
    6. very good ergonomics
      1. motions by large muscles of upper arm/shoulder and transmitted to hand by large tendons/ wrist may be kept straight
      2. compound leverage results in very high total leverage
      3. stitch finished by return spring action from stretched fabric (produced fabric must be tight enough to be very elastic)
    7. fastest way to knit small objects
    8. can produce very fine fabrics
    9. suited to needles smaller than 3 mm
    10. tools can be used like a knitting stick; However,  best speed is achieved with both hands making a very small, but powerful simultaneous motions down and together that pops the working prick into the working stitch, AND loops yarn over the working needle. Alignment and range of motion of pricks is controlled by rotation of the right prick in its knitting sheath. When the stroke is finished, the tension in the fabric pops the prick out of the stitch as the side of the right hand hits the bend in the working needle, sliding the finished stitch off holding needle.
It was swaving the moved me toward knitting with blunt wires.  It took me about 7 years to work out the details of swaving.  For example neither the bent needles in Rutt, or the bent needle in the Victoria and Albert collection works well for swaving.  The bend that does work is:

Swaved sock in  progress
from 6-strand, 1650 ypp yarn
on 2.0 mm pricks
knitting sheath with swaving adapter shown
needle adapter has brass bearings to allow easy rotation of the working prick


Perhaps, what I should say is that I see many knitters using "make do" tools, and one may be able to swave with the tools in Rutt or the V.and A. but those tools are not likely good enough to be the primary production tools of a commerciall operation.  It is worth noting that one can one can knit the legs of hose on long gansey needles and swave the ankles/feet with no change in gauge.  

Anyway, it took me ~7 years to work out swaving, then I had to swave for a couple of years, before I had the idea that I could "pop" blunt gansey wires into stitches. My first response was "This is wonderful, why didn't anyone tell me about blunt needles!"  At this point, I have been using blunt gansy needles for about 2.5 years.  For, the last few months, I have been grinding the points off of my finer needles. Thus, as of now, I have been working with various kinds of blunt knitting tools for more than 10 years.  A  couple of days ago, I ground the points off of my 0.8 mm wires. Subsequent swatches tell me that this opens up a whole new class of fabrics to reasonable hand knitting.  As I knit more and more with finer and finer blunt  wires, my first response is "This is wonderful, knitting fine fabrics can be easier!"  My second response is, "Whiskey Tango Foxtrot, Why does everyone use pointed  knitting needles?" Because they do not use knitting sheaths. 

Rutt's worst mistake was regarding pointed knitting needles. If you are going the knit replicas of the best objects in Rutt, then you will need fine knitting wires - and a good knitting sheath.

I suggest that the core of better knitting is making better fabric.  I suggest the better finishing techniques are better done on better fabrics, otherwise one is "just putting lipstick on a pig".  I suggest that knitting fast enough to get the project done is important.

Whiskey Tango Foxtrot


Knitting heart
    1. small knitting sheath sewn or pined to clothing to hold fine needles for knitting lace.
    2. fine, pointed needles
    3. medium length needles
Basque Knitting
    1. uses two or more needles with hooks in one end
    2. good for knitting while walking.
    3. good for coarse, loose fabrics
    4. good ergonomics
Pit knitting and "crease knitting"
    1. holding a knitting needle in the arm pit or tucked into the crease of the thigh (normally SPN) 
    2. Various kinds of pads and needle holders may be used
    3. needles may be either SPN or DPN
    4. mechanical advantage is greater then hand held needles, but less than knitting stick/knitting belt/knitting sheath
    5. Grip on working needle can be less, so is more ergonomic than hand held knitting
    6. needle placement is not as precise as knitting belts/knitting sheaths or knitting sticks


No comments: