Hair Shampoo

Laundry Detergent

“Cleaning Your Hair vs Cleaning Your Clothes” Jeff Easley – Sr. Global Performance Improvement Specialist Stepan Company SCC St. Louis Chapter – Annual Scientific Symposium September 26, 2014

Objectives… Compare and Contrast: • Cleaning technology • Ingredient types • Ingredient functions • Formulations • Performance testing • Regulatory environment

Cleaning Technology

Cleaning Hair vs Cleaning Fabric In General… • Different substrates • Many more fabric types than hair types • Soils to be removed differ • Surfactant interfacial phenomena similar • Differences in washing processes

Detersive Systems System

Soil

Mechanical Action

Detergent

Household Laundry

Mixed & Variable

Moderate

Unbuilt or Built Surfactant

Hair Shampoo

Oily

Vigorous • Rubbing in • Rinse cycle

Organic Surfactant

Progression of Laundry Detergent Forms Bars

Liquids

Powders

Also known as: Heavy Duty Powders (HDP)

Heavy Duty Liquids (HDL)

Product Trends • Increasing Concentration – 2X, 4X and greater

• Cold Water Cleaning • Eco-friendly Products – Using “Green” or natural based Ingredients

• Recyclable Packaging • High Efficiency – Low foaming variants

Comparison of Claims Hair Shampoo • Rapid-Drying • Fragrance Free • Dermotologist Recommended • Volumizing • Clarifying • Hypoallergenic • pH Balanced • No Animal Testing • Mild • Moisturizing • Free From…

Laundry Detergent • • • • • • • • • • •

Botanical/Herbal Kosher No Additives/Preservatives Fragrance Free Hypoallergenic Economy Convenient Packaging All Natural Product Ease of Use pH Neutral Dermatologically Tested

Interesting Laundry Fact…

Ingredient Types

Ingredient Comparison…. Hair Shampoo

Key

• Surfactants • Water • pH adjusters • Fragrance • Dye • Preservative • Vitamins • Protein derivatives • Inorganic salts • Humectants • Emollients • Silicones • Thickening agents • Chelants/Sequestrants • Suncreen agents

Laundry Detergent • Surfactants • Builders • Buffering Agents • Enzymes • Optical Brightener • Polymers • Hydrotropes • Enzyme Stabilizer • Preservative • Colorant • Fragrance • Softening Agent • Bleach • Anti-redepostion Agent • Filler • Water

Typical Physical Properties pH

Viscosity % Actives

Hair Shampoo Slightly 3,500– acidic 7,000 cps (5.5 – 6.5) at 25C Household Alkaline 300 – 700 (8.0-10.5) cps at 25C Laundry Detergent (Liquid)

10-12% (mid-tier) 5-30% (bargain to premium)

Soils Types and Ingredients to Address Them Anionic & Nonionic Surfactants

Anionic Surfactant

Nonionic Surfactant, Solvents

Enzymes

Surfactants, Bleaching Agents

Surfactant Comparison Hair Shampoo • Sulfonates

Laundry Detergent • Sulfonates

– Alpha Olefin Sulfonate

– Acids – Neutralized forms

• Sulfates – Alkyl ether sulfates – Alkyl sulfates

• • • • •

Alkanolamides Amphoterics Methyl Esters Sulfoacetates Sulfosuccinates

• Sulfates – Alkyl ether sulfates – Alkyl sulfates

• • • •

Alkoxylates Alkanolamides Methyl esters Hydrotropes

Common Primary Anionic Surfactant • Linear Alkylbenzene Sulfonic Acid (LABSA)

– – – – –

Good foamer Good detergency Neutralization necessary Best carbon chain C11-12 linear Corrosive in acidic state

Common Primary Anionic Surfactant • Alkyl Ether Sulfates (AES) C12-15(O-CH2-CH2)nOSO3- Na+

– – – – –

n = 2 or 3

Foam enhancer Good hard water tolerance Carbon chain C12-14 with 2-3 moles EO Preferred Due to gel phase formation, add other ingredients first Stable at 4