TESDA Hairdressing NC II flashcards

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

5S Method

Japanese workplace organization system: Seiri (sort), Seiton (systematize), Seiso (sweep), Seiketsu (standardize), Shitsuke (sustain). Used in salons to keep work stations clean, safe, and efficient.

Hierarchy of Controls

Order of hazard control from most to least effective: elimination, substitution, engineering controls, administrative controls, and PPE. PPE is the last resort because it only protects the wearer.

SDS Document

Safety Data Sheet provided by chemical manufacturers. Lists hazards, first aid, handling, and storage for products like relaxers, dyes, and bleaches. Must be accessible to salon staff.

Personal Protective Equipment

Items worn to reduce exposure to hazards: gloves for color and relaxer, apron, safety glasses, and closed shoes. Required when handling chemicals or performing wet work.

Accident Report Form

Workplace document used to record injuries, near misses, and incidents. Includes date, time, persons involved, cause, and action taken. Reviewed by the safety committee.

Salon Team Roles

Typical structure: receptionist handles bookings, stylists/hairdressers perform services, assistants prepare clients and tools, supervisor oversees quality and safety compliance.

Effective Communication

Clear exchange of information with clients and coworkers using active listening, open questions, and confirmation. Includes recording client preferences and allergies accurately.

Disinfection

Process that destroys most pathogenic microorganisms on surfaces and tools, but not necessarily spores. Achieved with hospital-grade or quaternary ammonium disinfectants at label dilution.

Sterilization

Process that destroys all microorganisms including bacterial spores. Achieved by autoclave or dry heat. Not routinely required for salon tools, which need disinfection.

Sanitation

Reduction of microbial contamination to safe public health levels by cleaning and washing. Applies to floors, linens, and surfaces before disinfection of tools.

Single-Use Items

Items used once and discarded: razor blades, cotton, wooden sticks, neck strips, and disposable gloves. Never reused between clients to prevent cross-contamination.

Blood Spill Procedure

Wear gloves, absorb spill, apply 1:10 bleach solution or approved disinfectant, leave 10 minutes contact time, then dispose of waste in a sealed bag.

Client Consultation

Pre-service interview covering hair history, chemical services, allergies, scalp condition, and desired result. Findings are recorded on the client card before service begins.

Tool Inspection

Checking shears for nicks, clippers for blade alignment, and dryers for cord damage before use. Defective tools are tagged and removed from service.

Hair Structure

Three layers: cuticle (protective outer scales), cortex (bulk, strength, pigment), and medulla (central core, may be absent). Chemical services act mainly on the cortex.

pH Scale for Hair

Scale 0-14 measuring acidity/alkalinity. Hair and skin ~4.5-5.5, shampoo ~5.5-7, permanent wave ~9-9.5, relaxer ~11-13, neutralizer ~3-4.

Hair Type Classification

Type 1 straight, Type 2 wavy, Type 3 curly, Type 4 coily. Subclasses a, b, c describe diameter and curl tightness. Guides product and tool selection.

Porosity

Ability of hair to absorb and retain moisture. Low porosity has tight cuticle and resists moisture; high porosity has raised cuticle and loses moisture quickly.

Density

Number of hair strands per square inch of scalp. Classified as sparse, medium, or thick. Affects product amount and styling time, not strand thickness.

Elasticity

Ability of wet hair to stretch and return to original length. Normal hair stretches 30-50 percent; low elasticity breaks easily and limits chemical services.

Permanent Wave Process

Reducing agent such as ammonium thioglycolate breaks disulfide bonds and reshapes hair on rods. Neutralizer (hydrogen peroxide or sodium bromate) reforms bonds to lock the curl.

Relaxer Types

Sodium hydroxide (lye) and guanidine hydroxide (no-lye) relaxers have pH around 13. Ammonium thioglycolate relaxers are pH 9-9.5. Base cream protects the scalp.

Developer Volumes

10 vol (3%) deposits only, 20 vol (6%) lifts 1-2 levels, 30 vol (9%) lifts 2-3 levels, 40 vol (12%) lifts 3-4 levels. Avoid 40 vol on the scalp.

Color Wheel

Primary colors red, yellow, blue; secondary green, orange, violet. Complementary pairs neutralize: violet cancels yellow, green cancels red, blue cancels orange.

Hair Color Categories

Temporary color coats the cuticle; semi-permanent direct dyes deposit without lift; demi-permanent uses low peroxide and deposits only; permanent oxidative dyes lift and deposit.

Cutting Elevation

Angle at which hair is held from the head: 0-degree blunt, 45-degree graduated, 90-degree uniform layer, 180-degree long layer. Determines shape and weight line.

Thermal Styling Temperatures

Blow dryer 60-80 degrees Celsius for fine hair, up to 90 for thick. Flat iron 150-180 for fine or damaged hair, up to 200 for resistant hair.

Patch Test

Application of a small amount of color or relaxer product behind the ear or inner elbow 24-48 hours before service. Checks for allergic reaction; result recorded on client card.

Neutralizer Function

Acidic product (pH 3-4) applied after permanent wave to stop reducing action and rebuild disulfide bonds. Hydrogen peroxide or sodium bromate are common active agents.

Base Cream

Protective cream applied along the scalp line before relaxer service. Prevents chemical burns and irritation from high-pH sodium hydroxide or guanidine hydroxide products.

Float Test

Porosity check where a clean strand floats on water. Floating indicates low porosity; sinking quickly indicates high porosity and rapid moisture loss.

Strand Test

Small-section test of color, relaxer, or wave product to predict result and timing before full application. Recommended for first-time clients or corrective services.