ラウロイルメチルイセチオン酸ナトリウム & ラウリルスルホ酢酸ナトリウム

The Differences Between Surfactant SLMI and SLSa Powder

1) Bubble appearance :
ラウロイルメチルイセチオン酸ナトリウム(SLMI)

Large and small bubbles
Rinses easily
Creamy foam feel
Tacky skin feel

ラウリルスルホ酢酸ナトリウム(SLSa)

Very fine, stable bubbles
Creamy foam feel
Skin not dry

2) Surfactant foam
発泡: initial foam height cm

泡の安定性: Foam height/initial foam height (%) after 5 minutes The influencing factors for stabilizing the foam system Viscosity of the system (liquid phase viscosity), the viscosity increases, the stronger the foam performance, the lower the drainage capacity
Shaking foam test (0.2% active solution at 25°C)

SLMI: 300 cm without oil, 260 cm after 5 minutes SLSa: 360 cm without oil 340 cm after 5 分

SLMI: with oil , 260 cm 5 minutes later 245 cm SLSa: with oil, 260 cm 5 minutes later 245 cm

3) Surfactant mildness
Test zein test, which is a test of the degree of effect of surfactants on living proteins.

The less protein dissolves, the milder the surfactant, Test the irritation of surfactants with zein Take SLS as an example, its zein value is 100

Sodium lauryl sulfoacetate SLSa: 58

ラウロイルメチルイセチオン酸ナトリウム SLMI: 55

4) PH:
ラウロイルメチルイセチオン酸ナトリウム(SLMI) :4.8 ラウリルスルホ酢酸ナトリウム(SLSa) :7.0

5) Active Substance :
ラウロイルメチルイセチオン酸ナトリウム(SLMI) : 76% ラウリルスルホ酢酸ナトリウム(SLSa) :80%