Lecture # 10 Knitting Elements and Basic Knitting Structures

Knitting Elements Needle Sinker Cam Feeder Winder

Needles

Needle Parts Stem – Used to hold the course of old loops Hook – The hook is used to catch a thread and form loops. Rivet – Holds the latch in place and allows it to pivot. Latch – The latch combines the task performed by the presser bar and the beard of the bearded needle. Butt – The butt enables the movement of the needle to be controlled by a cam mechanism.  A track raises and lowers the needle. Tail – Used to provide support to the needle.

Needle History Matthew Townsend, a Leicester hosier, patented the latch needle in 1849.  Townsend spent much of his time developing new knitted fabrics and he investigated a simpler way of knitting purl fabrics. 

Sinkers

CAMS Knit Cams Tuck Cams Miss Cams

Yarn Feeder

Cylinder, Dial and Flat Bed Parts of machine to hold needle Determines the gauge of the machine

Fabric Winder To pull fabric downward To wrap it on a bar or to make laps of fabric Limited weight Traditionally it was up to 30 kg but today more than 120 kgs is possible

Basic Four Knitting Structures Plain Rib Interlock Purl

Technical Front

Technical Back

Plain Structure

Rib Structure

Purl Structure

Interlock Structure

Lecture # 11 Flat Knitting Machines

Flat knitting ---- Needle bed is flat

Single bed and double bed flat knitting machines Production Collars, arm bands Sweaters Rib Gloves For more information: http://www.shimaseiki.co.jp

Gauge 3 to 14 3 to 10 for sweaters 12 to 14 for collars and cuffs

Main characteristics Strong grip in fine gauge Soft feel in course gauge Loose structure Easy designing Multi colors Slow production

Conti--- Easy to operate Width up to 70 inches

Significance of Flat Knitting Machines Part of main body Garment in flat knitted fabric Sweaters

Production 400 collars per day Collar length is 3 to 4 inches In fabric form 40 to 50 meters Width 4 to 80 inches

Machines arrangements Number of feeders 2 to 14 Jacquard Transfer Manual Automatic Machine Specification

Quality Parameters Gauge Width Length Number of stitches Knitting fault Oil problem Edges uneven

Carriage Moving Taking all cams and feeding system Change of cam with in carriage Change of yarn with the help of change of feeder Movement restriction

Costing Per piece Per kg

Lecture 12 Circular Knitting Most Common Machines

Types of circular knitting machines Single knit Double knit Fleece Stripe Jacquard Plush Terry

Main Parts Yarn feeding system Needle and sinker bed Fabric winder Power transmission Lubrication Control panels

Yarn Feeding Creels

Combi Creel

Fan Creel

Filter Creel

Yarn Feeding

Elastic Yarn Feeder

Lubricants

Uniwave

Knitting Cylinders

For more details http://www.memminger-iro.de/ http://www.peverada.it/english/peveprod.html