Tooth Tip Profiles (V/U/rounded) — 齿尖与クシ先の形状

Tooth Tip Profiles (V/U/rounded)

Detailed Description

The tooth tip (齿尖 / クシ先) shape influences how a thinning/texturizing shear engages hair at the first point of contact. Common profiles include straight tips, V‑notch, U‑notch, rounded (on curved/arc faces), and specialized blends. Tip shape interacts with face geometry (face_profile) and spacing to affect bite, glide, and the likelihood of visible marks.

Profiles and Performance

  • Straight tip: neutral bite; pairs with straight faces; can push in dense hair compared with V; predictable on higher tooth counts.
  • V‑notch tip: strongest bite; stabilizes hair in thick/coarse sections; higher marking risk near the surface and fine ends.
  • U‑notch tip: smoother entry than V; reduced marking risk on fine/medium hair; less debulking power than V.
  • Rounded tip (curved/arc faces): very smooth entry; lowest marking risk among single‑tooth designs; best for soft blending; limited bite in dense hair.
  • Mixed tip (combination/graded designs): blends characteristics; behavior varies by maker; test before use near the surface.

Best For

  • V‑notch: internal debulking and control in thick/coarse hair at lower tooth counts.
  • U‑notch / Rounded: soft blends and surface‑adjacent work on fine/medium hair (use light, multiple passes).
  • Straight: general blending at higher counts (30–40T) where subtle removal is desired.

Pros

  • Right tip profile reduces push, improves control, and limits visible marks.

Cons

  • Aggressive tips (V) can mark fine ends; smooth tips (U/rounded) remove less bulk.

Best Techniques (Step‑by‑Step)

  1. Match tip to task: choose V‑notch for internal bite; rounded/U for soft blends.
  2. Keep passes internal for the softest results; teeth‑down near the surface reduces marks.
  3. Close fully; use correct tension; prefer multiple light passes over one heavy cut.

Sizing & Fit

  • Tip behavior changes with tooth count and spacing; test on a strand for cut ratio.

Maintenance & Setup

  • Preserve tip integrity during sharpening; don’t flatten micro‑features; maintain correct tension to avoid catching.

Sources

  • Wolff Industries: What Are Thinning Shears and When to Use Them — https://wolffindustries.com/blogs/news/what-are-thinning-shears-and-when-to-use-them
  • Mizutani: What Is Texturizing Shears? — https://www.mizutani-scissors.com/en/blog/knowledge/what-is-texturizing-shears/
  • Sam Villa: Haircutting Thinning Shears Guide — https://www.samvilla.com/blogs/hair-tutorials/haircutting-thinning-shears-guide
  • Jatai: Thinning Shears vs Texturizing Shears — https://jatai.net/blog/thinning-shears-vs-texturizing-shears/

Related Tooth types