Rotary or Digital: Where the Two Cost Lines Actually Cross
Routes a print book design by design instead of by a rule of thumb. Rotary is almost all fixed cost — a screen per colour per colourway, strike-offs, setup.
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Finishing
Pretreatment, dyeing auxiliaries interface, mechanical and chemical finishes for handle, shrinkage, and fastness. Energy, water, and effluent optimization are emphasized. 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.
The Cheapest Route to a Denim Wash
Takes the wash-down a recipe actually reaches and finds the cheapest combination of processes that reaches the same one, inside the tensile loss the fabric.
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What to Do With a Batch That Comes Out Off Shade
Works out the first move on an off-shade batch by looking forward to the last attempt the cloth will survive rather than at the cost of this one. Prices.
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Dyeing Route Economics: Which Machine for This Lot
Costs the same lot down every dyeing route the house owns, separating what each route costs to start from what it costs to run. Reports the lot size band.
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The Express Lane: How Much Can Be Sold Before It Stops Being Express
Works out how much of a plant can be sold as priority work before the priority stops meaning anything, using the waiting times of a two-class queue rather.
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