Topic 5 of 6 · Form 6
Clothing industry production and quality
Method study and time study (standard minute values) to plan and balance production lines.
Notes for this topic 1 file, in order
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Production systems
- Make-through (one operator makes a whole garment) – flexible, slow.
- Progressive bundle system – operators specialise; work moves in bundles.
- Unit production systems (overhead conveyors) and modular/team systems – faster response.
- Quick response and just-in-time manufacture.
Work study
Method study and time study (standard minute values) to plan and balance production lines.
Worked example: A shirt has a standard minute value of 20 minutes. How many shirts can a team of 10 operators produce in an 8-hour day at 75% efficiency?
Available minutes = 10 × 480 × 0.75 = 3 600; output = 3 600 ÷ 20 = 180 shirts
Quality
Quality control at each stage (fabric inspection, cutting, sewing, final inspection); AQL sampling; quality assurance standards; garment specifications.
Technology
CAD for pattern-making and marker planning, automatic cutting, computerised embroidery, and CAM.
Health and safety
Machine guarding, ventilation, ergonomic workstations, fire safety.
The textile industry in Zimbabwe
Cotton production and ginning, spinning and weaving firms, clothing manufacturers and informal tailors; challenges from imported second-hand clothing and cheap imports, high costs and power shortages; opportunities in value addition and regional trade.
Check yourself
- What is a standard minute value (SMV)?
- Give one advantage of the progressive bundle system.
- State two challenges facing Zimbabwe's clothing industry.
Show answers
- The time a trained operator should take to complete an operation or garment at standard performance.
- Operators specialise, increasing speed and skill.
- Any two: cheap imports and second-hand clothing, high production costs, power shortages, outdated machinery, finance.
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