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Drafting Guide ⏱ 8 min • ✍ Radhika Tutorials Team

Katori Blouse Paper Drafting and Construction: Step-by-Step Guide

Master the classic Indian Katori (cup-style) blouse drafting. The essential 7-point scaling formula to transform the baseline template into a custom-fitted bust cup.

⚠️ Common Cutting Mistakes to Avoid

  • Cutting the preliminary small paper cup directly on fabric without expanding (creates a tight, flattened bust)
  • Failing to add the 1.25-inch ease extensions on both outer corners of the cup
  • Misaligning the apex dart center, causing the cup point to shift sideways

Watch Practical Video Tutorial

The Precision Art of the Katori Blouse

Among classic Indian ethnic garments, the Katori (Cup-style) Blouse is celebrated for providing natural contour and support.

The most common beginner error is a cup that ends up flattened or pulls awkwardly at the underarm. This occurs exclusively when the initial bodice template is not scaled properly onto fresh drafting paper.


The 7-Point Cup Expansion Formula

Never cut the primary pattern piece directly onto expensive silk or cotton. Lay the preliminary small cup on a fresh sheet of drafting paper and apply these 7 exact adjustments:

  1. Neckline Seam: Add 0.5 inches of seam allowance along the upper neck curve.
  2. Placket Edge: Extend outward by 1.0 to 1.25 inches along the center front hook line.
  3. Armhole Join Edge: Extend outward by 1.25 inches along the opposite outer slope.
  4. Apex Base Point: Measure the exact midpoint between the two new outer corners, then drop vertically down by 1.5 inches.
  5. Base Dart Width: Mark 1.25 inches on both sides of the center base line (total 2.5-inch dart width).
  6. Dart Height: Stitch vertically upward from the base by 2.5 to 3.0 inches, tapering smoothly to zero at the apex.
  7. Cross-Patti (Yoke Belt): Draft with 3.5 inches height at the front placket and 3.0 inches at the side seam to cradle the assembled cup securely.

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