Comprehensive Study Notes on Haircutting Principles, Angles, and Hair Analysis

Haircut Lines, Angles, and Sectioning

  • Diagonal Lines in Haircutting:

    • Positioned between horizontal and vertical lines, having a slanting or sloping direction.
    • Used in specialized haircutting techniques to create angles by cutting hair ends with slight increases or decreases in length.
    • Beveling: A technique performed by rolling the hair around the index and middle fingers to flip the hair up or under prior to cutting, or by cutting hair ends with a slight increase or decrease in length.
    • Stacking: A technique using diagonal lines to create angles and build weight or graduation.
    • Types of Diagonal Lines:
    • Diagonal Forward: Creates movement and length progression toward the face.
    • Diagonal Back: Creates movement away from the face.

  • Sections, Subsections, and Partings:

    • Sections: Working areas into which hair is divided to provide control during haircutting. Composed of curved and straight lines to subdivide the head into manageable segments.
    • Subsections: Smaller areas divided from a larger working section.
    • Part or Parting: The line that divides the hair at the scalp, separating one section or subsection of hair from another.

  • Four Types of Haircutting Sections:

    • Horseshoe Section: Separates the head at the parietal ridge to below the crown. Provides control when layering or graduating hair.
    • Pivoting Section: Also referred to as a pie-shaped section. Rotates from a central point and is utilized in layering and graduation techniques.
    • Profile Section: Extends from center forehead to center nape. Divides the head into two symmetrical halves (a right profile and a left profile) and facilitates subsectioning.
    • Radial Section: A section taken from ear to ear that divides the head from front to back, starting behind the apex in the crown.

Elevation in Haircutting

  • Definition and Mechanics:

    • Elevation: Also referred to as projection or lifting. The degree at which a section or subsection of hair is held, or elevated, away from the head when cutting.
    • Graduation Creation: Elevation creates graduation—a gradual progression of hair lengths from longest to shortest cut to a fixed guideline.
    • Described and measured in degrees ranging from 0∘0^\circ to 180∘180^\circ relative to the head form.

  • Elevation Levels and Weight Effects:

    • 0∘0^\circ Elevation: Used in a blunt or one-length haircut where no elevation is applied.
    • Elevation Above 0∘0^\circ: Occurs whenever any hair section is lifted off the scalp; required for any haircut that is not a single length.
    • Elevations Below 90∘90^\circ: Builds weight in the haircut design.
    • Elevations at 90∘90^\circ or Higher: Removes weight and creates layers in the hair.
    • Highest Degree of Elevation: 180∘180^\circ relative to the head form.
    • Most Common Elevations: 45∘45^\circ and 90∘90^\circ.

  • Factors Influencing Elevation Results:

    • Hair Length: Longer hair often appears heavier or less layered despite elevation due to total hair mass.
    • Curly Hair Mechanics:
    • Requires less elevation than straighter textures.
    • Shrinkage: The process where hair contracts or lifts through the action of moisture loss or drying.
    • Curly hair should be cut slightly longer than desired to account for shrinkage upon drying.

Finger Angle and Guidelines

  • Finger Angle / Cutting Line:

    • Terminology: Also known as cutting line, cutting position, cutting angle (measured in degrees), and finger position.
    • Definition: The angle at which the fingers are held when cutting the hair line that creates the final end shape.
    • Orientations: Can be horizontal, vertical, or diagonal, or defined in precise degrees in relation to the head form.

  • Guidelines (Guide):

    • Definition: A hair subsection that determines the exact length the hair will be cut. It is typically the first section cut when establishing a haircut shape.
    • Perimeter Guideline: The outer line or boundary of the haircut.
    • Interior Guideline: The inner or internal line within the haircut.

  • Types of Guidelines:

    • Stationary Guideline:
    • Remains fixed in one position and does not move.
    • All subsequent sections are combed to the stationary guideline and cut at the same angle and length.
    • Utilized in blunt (one-length) haircuts and in graduated haircuts that incorporate overdirection to achieve a length or weight increase.
    • Traveling Guideline:
    • Also known as a movable guideline; moves with the stylist as cutting progresses through the haircut.
    • Utilized when creating layered or graduated haircuts.
    • Execution: A small slice of the previously cut subsection is taken and moved to the next position/subsection, where it serves as the new guideline.

Haircut Shape Combinations and Overdirection

  • Haircut Design Combinations:

    • Blunt (One-Length) Haircut: Created using 0∘0^\circ elevation, a diagonal (or horizontal) cutting line, and a stationary guideline.
    • Uniform-Layered Haircut: Created using 90∘90^\circ elevation, a vertical cutting line, and a traveling guideline.
    • Graduated Haircut Variation with Stacked Effect:
    • Sides and back cut using 45∘45^\circ elevation with a diagonal (45∘45^\circ) cutting line to produce a stacked effect.
    • Top section cut using 90∘90^\circ elevation (layered).
    • Entire shape executed using a traveling guideline.

  • Overdirection:

    • Definition: Combing the hair away from its natural falling position, rather than straight out from the head form, to increase the overall design length in a specific direction.
    • Primary Applications: Used predominantly in graduated and layered haircuts.
    • Increasing Length Toward Front: Overdirect hair sections backward to a stationary guideline positioned at the back of the ear.
    • Creating Shorter Face-Framing Layers with Longer Back: Overdirect hair sections forward to a stationary guideline positioned at the front.

Hair Analysis and Characteristics

  • Overview: Hair analysis requires evaluating four primary physical characteristics to determine proper haircutting techniques: growth pattern, density, texture, and wave pattern/behavior.

  • Growth Pattern:

    • Hairline: The hair that grows along the outer perimeter of the face, ears, and neck.
    • Definition: The natural direction in which hair grows from the scalp, also known as its natural falling position.
    • Special Patterns: Cowlicks and whorls represent strong growth patterns commonly located at the crown and fringe areas.
    • Analysis Standard: Growth patterns must be analyzed while the hair is dry so its natural fall can be accurately observed.

  • Hair Density:

    • Definition: The number of individual hair strands per 1 square inch1\text{ square inch} (or square centimeters) of scalp.
    • Categories: Thin (low), medium, or thick (high).
    • Impact on Subsections: Density determines the size of subsections needed during haircutting.
    • Excessively thick subsections obscure the guideline and reduce control over the shears.
    • Hair is pushed away as shear blades close, resulting in uneven lines.
    • Low Density / Coiled Hair: Coiled hair with thin or low density may present unique visual patterns or require adjusted sectioning.

  • Hair Texture:

    • Definition: The structural diameter of an individual hair strand.
    • Classifications: Fine, medium, or coarse.
    • Visual and Behavioral Effects:
    • Coarse hair tends to stick out more, particularly when cut short.
    • Fine hair lies flatter and may allow scalp visibility if cut incorrectly.
    • Characteristics by Texture Type:
    • Fine Hair: Features side bonds that typically recoil or bounce back; must always be handled with caution.
    • Medium Hair: Bounces back effectively; vulnerable to damage if exposed to excessive heat.
    • Coarse Hair: Most resilient and strong; capable of supporting heavy layers and resisting damage; frequently requires protein treatments and moisturizers.

Review Questions

  • Haircutting Fundamentals Review:
    • Question 1: How are lines and sections used together before performing a haircut?
    • Answer/Context: Lines (curved and straight, horizontal, vertical, diagonal) define the borders of working areas called sections and subsections, allowing control over the head form before cutting.
    • Question 2: What is elevation?
    • Answer/Context: Elevation (projection/lifting) is the degree at which a section or subsection of hair is held away from the head when cutting, controlling graduation and weight.
    • Question 3: Where are guidelines located?
    • Answer/Context: Guidelines are located either on the perimeter (outer line) or interior (inner/internal line) of the haircut, establishing the cut length.
    • Question 4: How does overdirection occur in graduated and layered haircuts?
    • Answer/Context: Overdirection occurs when hair is combed away from its natural falling position rather than straight out from the head, extending length in targeted areas toward a stationary guide.