UPMSP Weaving Technology study plan
UPMSP Weaving Technology · Give each week a clear focus.
8 weeks · About 7 hours per week
Loom Mechanisms and Motions & Textile Fibres and Yarn Fundamentals
Sketch and label the five primary loom motions (shedding, picking, beating-up, let-off, take-up) and state the function and timing of each in the loom cycle
Define the secondary and stop motions and explain which fabric/ yarn faults each one is designed to prevent
Classify natural, regenerated and synthetic fibres by origin and property, and match each to typical weaving behaviour (drape, crimp, elongation)
Explain yarn numbering systems (Ne, Nm, Tex, denier) and convert at least ten values between systems by hand
Describe how twist level and direction affect yarn strength, hairiness and abrasion resistance in the warp and weft
Your checkpoint
A hand-drawn loom motion diagram with all eight motions labelled plus a one-page yarn-count conversion table showing 10 worked conversions
Loom Mechanisms and Motions & Fabric Structure and Weave Design
Trace the shedding cycle for tappet, dobby and jacquard shedding and identify which fabric complexity each suits
Compare early and late shedding and explain the effect of shed geometry on warp strain and pick spacing
Draw the pegging/chain plan for a given weave repeat and read an existing chain plan back into a weave
Analyse picking systems (overpick, underpick, projectile, rapier) by the force path and the timing constraints they impose
Explain how sley eccentricity and beat-up timing influence pick density and fabric cover
Your checkpoint
A worked loom timing chart (crank angle from 0 to 360 degrees) marking shed opening, pick, beat-up and shed crossing for one chosen weave
Fabric Structure and Weave Design
Construct the weave, draft and peg plan for plain, twill (2/1, 2/2, 3/1), satin and sateen weaves from first principles
Derive the repeat size, warp/weft float lengths and interlacing factor for each family and predict fabric handle from them
Design a colour-and-weave effect and a simple stripe/check using a given weave base
Calculate ends per inch, picks per inch and weave density from a fabric sample description and check whether the design is weaveable on a given loom
Explain how weave structure affects crimp, cover factor and tear strength
Your checkpoint
A design portfolio of five weaves, each with weave diagram, draft, peg plan, float analysis and a two-sentence handle prediction
Warp Preparation and Sizing & Loom Mechanisms and Motions
Sequence the warp preparation route from winding through warping, sizing and drawing-in, stating the quality check at each stage
Compare direct and sectional warping and justify a choice for a given order size and colour pattern
Explain sizing recipe components (size agent, lubricant, binder, preservative) and their separate functions
Calculate size add-on percentage, size pick-up and moisture regain targets from given figures
Relate warp breakage rate to sizing quality and identify the loom settings that compensate for poor sizing
Your checkpoint
A one-page warp preparation flow chart with the acceptance criterion and the common fault at each of the six stages
Weaving Operations and Production Control & Textile Calculations and Costing
Calculate loom efficiency, picks per hour, production in metres per shift and machine utilisation from raw shift data
Compute the number of looms per weaver and per shift from allocation and workload data
Convert fabric weight per square metre into GSM-related costing inputs and calculate yarn consumption per metre of fabric
Build a simple cost sheet covering yarn, sizing, power, labour, depreciation and overheads, and derive cost per metre
Diagnose a production shortfall by separating losses into warp stops, weft stops, maintenance and organisational causes
Your checkpoint
A spreadsheet-style calculation sheet solving five set problems on efficiency, production and cost per metre with all steps shown
Fabric Defects, Quality Assurance and Inspection & Weaving Operations and Production Control
Catalogue warp-way and weft-way defects with their root cause, the responsible machine part and the corrective action
Explain the 4-point and 10-point grading systems and grade a described fabric roll
Describe the inspection sequence on a fabric inspection machine and the significance of a cuttable-width check
Set up a stop-rate monitoring routine and interpret a rising end-breakage trend
Distinguish a machine fault from a material fault when the same defect repeats across several looms
Your checkpoint
A defect diagnosis table of at least 15 defects with cause, machine part and remedy, plus a graded sample roll calculation
Maintenance, Safety and Workshop Practice & Modern Weaving Technology and Automation
List the scheduled maintenance tasks for tappet loom, dobby and rapier loom at daily, weekly and monthly intervals
Describe safe isolation and lock-off procedure before clearing a warp or weft jam, and the PPE required on the weaving floor
Explain the working principle of modern looms: air-jet and water-jet weft insertion, electronic let-off and take-up, and automatic pick finding
Compare modern automation features (electronic dobby, quick style change, online monitoring) by their effect on efficiency and downtime
Identify the workshop hand tools and gauges used for loom setting and state what each one measures
Your checkpoint
A two-part sheet: a maintenance calendar for one loom type and a 10-item safety checklist for a jam-clearing procedure
Textile Fibres and Yarn Fundamentals & Fabric Structure and Weave Design & Loom Mechanisms and Motions & Warp Preparation and Sizing & Weaving Operations and Production Control & Fabric Defects, Quality Assurance and Inspection & Textile Calculations and Costing & Maintenance, Safety and Workshop Practice & Modern Weaving Technology and Automation
Re-solve one representative calculation from each of the nine domains under timed conditions
Redo every previously missed question and record the corrected reasoning in one line each
Recite the weave, motion, sizing and defect definitions from memory without notes
Sit two full-length mock papers and review both before the next session
Your checkpoint
A completed error log with every corrected item plus two scored mock papers with a written review of each weak area
Milestones
Week 2: Can draw any of the five basic weaves with draft and peg plan in under five minutes and explain the loom timing chart from memory
Week 4: Can complete a yarn count conversion, a size add-on calculation and a warp preparation fault identification without notes, scoring at least 8 of 10
Week 6: Can grade a described fabric roll and name the cause and remedy for 12 of 15 listed defects
Week 8: Two mock papers completed within time, with a personal error log showing every mistake corrected and re-explained