Weft and warp knitting fundamentals, loop formation, stitch density, spirality control, and defect diagnosis. Includes machine settings, patterning, and performance outcomes. This section explains practical decision criteria, typical test methods, and failure modes that matter in real production. Readers get checklists, calculation steps, and case examples connecting specifications to cost, reliability, and compliance. Links map core concepts to upstream inputs and downstream processes so choices remain consistent across sourcing, manufacturing, and end-use performance. Each article includes definitions, diagrams where helpful, and plain-language notes to help newcomers ramp quickly while giving experienced professionals the depth needed to troubleshoot and optimize. Standards references are cited with context, and whenever trade-offs exist, we make them explicit so you can defend decisions.
Turns guide bar runner lengths and yarn counts into fabric weight on a tricot or raschel machine: computes needles in the bed, yarn fed per rack, the weight each bar contributes, the resulting GSM, and the machine output in metres and kilograms per hour at a stated speed.
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Applies Archard sliding wear to the needle butt against the cam track, converting machine geometry and speed into sliding distance per hour, wear depth, contact pressure and the running hours before the butt reaches its wear limit.
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Converts leg length CV into the probability that two socks taken at random will pair within tolerance, then contrasts it with the yield a sorted bin system delivers, and reports the singles and their cost per shift.
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Works out the loop length a transfer actually demands from needle pitch and the cylinder-dial gap, distributes the shortfall across the loops that rob to supply it, and reports the resulting yarn strain, the tightest setting that will still transfer, and the speed the transfer courses cost.
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Solves for the loop length that delivers a target finished fabric weight at the finished stitch density, then works back through length and width shrinkage to give the greige weight and density the knitting floor should expect to measure.
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Converts an order in kilograms into machine hours, finds the smallest machine count that meets the due date once each machine’s own changeover is deducted, and reports completion, slack and how much of the committed time is changeover rather than knitting.
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Derives production in kilograms per hour from the machine’s own knitting geometry, adds drive, auxiliary and compressed air load, and reports specific energy in kWh per kilogram with the cost, the annual consumption and the carbon behind it.
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Derives the open width a knitted tube gives when slit, from needle count and wales per centimetre, deducts the edge trim, fits markers across the usable width and prices the strip left over – usually the largest single loss in the process.
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Converts the measured spacing of a repeating knitting fault into courses and wales, and from there into the number of feeders or needles that must be involved – turning a ruler measurement on the inspection table into a specific list of parts to look at.
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Compares a positive feeder’s theoretical delivery against the length measured at the machine, converts the slippage into loop length and fabric weight error, and gives the vertical spacing of the banding that feeder-to-feeder variation produces.
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1,496 machines in the register.Tell us about a missing one 306 event series in the register.Submit a trade fair or conference 3,038 standards tracked in the register.Get the changes by email each week