Unit 2: Pattern types & development
Pattern Making and Draping notes · PTU syllabus (BSTD 501-20)
Unit summary
Blocks are the base of every pattern. This unit covers basic blocks, the first (master) pattern for records, and working and production patterns.
After this unit you can
- Differentiate block, working pattern and production pattern
- Prepare the first pattern for records
- Add notches, grain lines and seam allowances
PTU syllabus topics
- Basic blocks and their importance
- developing the first pattern for filing/recording/future reference
- developing working patterns and production patterns
- 1Basic block
Standard fitted shape, no style
- 2First pattern
Developed and filed for reference
- 3Working pattern
Styled, tested in muslin
- 4Production pattern
With seam allowances, notches, grain lines
Topic 1
Basic blocks
A basic block is a fitted pattern without style details. Blocks: bodice, skirt, sleeve, trouser.
| Pattern type | Purpose |
|---|---|
| First (master) pattern | Drafted from measurements; stored for reference |
| Working pattern | Cut from the block with design changes |
| Production pattern | Final pattern with seam allowance, notches, grain line and labels |
Exam tip
Every pattern piece should carry: name, size, number of pieces to cut, grain line and notches.
Topic 2
Marking the pattern
Add seam allowance (1.5 cm for most seams, 2.5 cm hems), notches to match pieces, grain line arrows, button and dart positions and cutting instructions.
Key terms
- Block
- Base fitted pattern
- Notch
- Marking that matches pieces
- Seam allowance
- Extra margin beyond the seam line
- Grain line
- Direction parallel to the selvedge
- Production pattern
- Final cutting pattern
Quick revision
- Block → working pattern → production pattern.
- Mark seam allowance, notches, grain line.
- Keep a master pattern for records.
Important exam questions
Practice questions written to the PTU exam pattern for this unit's syllabus: short answers (Section A style) and long answers (Sections B and C style).
Short-answer questions
- Q1.What is a notch?
- Q2.Define seam allowance.
- Q3.What is a production pattern?
Long-answer questions
- Q1.Explain the pattern types and how a production pattern is prepared.
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