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SimplestSaxhorn

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Engr. Shakeel Ahmad Paracha

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knitting notations knitting technology fabric structures textile engineering

Summary

This document describes different types of knitting notations, including box/graph/squared diagrams, point diagrams, and bar diagrams. It explains how these notations are used to represent knitting patterns and fabric structures. The document appears to be part of a course in knitting technology.

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Textile Institute of Pakistan, Karachi. TEXT302 (Knitting Technology) Knitting Notations  A knitting notation is a simple, easily-understood, symbolic representation of a knitting repeat sequence and its resultant fabric structure that eliminates the need fo...

Textile Institute of Pakistan, Karachi. TEXT302 (Knitting Technology) Knitting Notations  A knitting notation is a simple, easily-understood, symbolic representation of a knitting repeat sequence and its resultant fabric structure that eliminates the need for time consuming and possibly confusing sketches and written descriptions.  Basically three methods / diagrams are recognised for knitting notations: o Box / Graph / Squared Diagram o Point Diagram o Bar Diagram Box / Graph / Squared Diagram  This method is developed by the Leicester School of Textiles for weft knitting only.  In this method each square representing a needle or stitch.  An ‘X’ symbol is placed in a square where a face stitch occurs and an ‘O’ where there is a reverse / back stitch.  When notating each stitch, it is necessary to examine the intermeshing direction at the base of the loop because the intermeshing at its head determines the direction of the intermeshing of the new loop formed above it. Point Diagram  Each point represents a needle in plan view from above and, after the thread path has been drawn, it also represents its stitch.  Each horizontal row of points thus represents adjacent needles during the same knitting cycle and the course produced by them.  The lowest row of points represents the starting course in knitting. Prepared By: Engr. Shakeel Ahmad Paracha Page 1 of 3 Textile Institute of Pakistan, Karachi. TEXT302 (Knitting Technology) Bar Diagram  Each bar represents a needle in plan view from above and, after the thread path has been drawn, it also represents its stitch.  Each horizontal row of bar thus represents adjacent needles during the same knitting cycle and the course produced by them.  The lowest row of bars represents the starting course in knitting. Example 1 Example 2 Single-faced Structures  Single-faced structures are produced in warp and weft knitting by the needles (arranged in either a straight line or a circle, with their hooks facing outwards) operating as a single set.  It shows the face loops on one side of the fabric and the reverse / back loops on the other side of the fabric. Prepared By: Engr. Shakeel Ahmad Paracha Page 2 of 3 Textile Institute of Pakistan, Karachi. TEXT302 (Knitting Technology) Double-faced Structures  Double-faced structures are produced in warp and weft knitting when two sets of independently-controlled needles are employed with the hooks of one set knitting or facing in the opposite direction to the other set.  It shows the face loops or the reverse / back loops on the both sides of the fabric. Balanced Structures  A balanced structure is a double-faced structure that has an identical number of each type of stitch produced on each needle bed which, therefore, show on each fabric surface, usually in the same sequence.  Balanced structures need not, however, have the same design in coloured yarn on either surface.  Such structures do not normally show curling at their edges. Selvedged Fabrics  A selvedged fabric is one having a ‘self-edge’ to it and can only be produced on a straight machine whose yarn carrier reciprocates backwards and forwards across the needle bed so that a selvedged edge is formed as the yarn rises up to the next course at either edge of the fabric. Cut Edge Fabrics  A cut edge fabric is usually produced by slitting open a tube of fabric knitted on a circular machine.  A slit tube of fabric from a 30-inch (76 cm) diameter machine will have an open width of 94 inches (2.38 m) at knitting and before relaxation. Tubular Fabrics  Tubular fabric may be produced in double-faced or single-faced structures on circular machines; or in a single-faced form on straight machines with two sets of needles, provided each needle set only knits at alternate cycles and the yarn only passes across from one needle bed to the other at the two selvedge needles at each end, thus closing the edges of the tube by joining together the two single-faced fabrics produced on each needle set.  Tubular double faced fabrics can be produced on straight machines with two sets of needles, needle bed racking and transfer facilities, provided empty complimentary needles are always available to receive and transfer loops. Prepared By: Engr. Shakeel Ahmad Paracha Page 3 of 3

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