Chromaeil Dc175
Páginas: 19 (4667 palabras)
Publicado: 13 de junio de 2012
ChromAveil
TM
Broad Spectrum UV Protection for Hair
ChromAveil is UV absorbing quat designed to give formulators substantive UVA and UVB protection for the hair
from both rinse-off and leave-on systems.
ChromAveil absorbs both in the UVB and UVA range, allowing for maximum protection of the hair tress. Not
only does it offer hair fibre protection with the UVB absorbance, but it can alsoprovide dyed hair colour fading
protection from the UVA absorbance. It offers substantiated UV protection that can be incorporated into daily
hair care products such as shampoos, conditioners and leave-in styling products.
Product
INCI name
Appearance
ChromAveil
Quaternium-95 (and) Propanediol
Viscous amber liquid
Features / Benefits
Protects dyed hair from colour fadecaused by
UVA radiation
Salon panel evaluation demonstrates consumer
perceivable colour differences between dyed
tresses with and without treatment
Protection of hair fibre integrity from degradation
that occurs after exposure to UVB rays
Excellent substantivity to hair
Excellent results from rinse-off and leave-on
systems
Non-silicone based
Applications
Shampoos
Conditioners,rinse-off and leave-on
Styling products
Structure and Composition
ChromAveil is a methoxycinnamic diester quat supplied as a 75% active amber liquid. As it is cationic in
nature, it is very substantive to hair, even from rinse-off systems. Its liquid form makes this ingredient easy to
pump, pour and mix while the high % actives concentration makes it easy to incorporate into formulations
withoutcarrying in high concentrations of unnecessary or unwanted diluents and solvents.
Croda Europe Ltd Cowick Hall Snaith Goole East Yorkshire DN14 9AA England
Tel +44 (0)1405 860551 Fax +44 (0)1405 861767 E-mail pc-europe@croda.com www.croda.com/europe
03/09 DC175/0
Page 1 of 17
Structure of ChromAveil
O
C
CH3
O
CH CH2 O
3
O
CH3
N+
O
CH2 CH O
O
- O S O CH
3C
3
O
O
O
Figure 1: Idealised structure of ChromAveil
UV Protection for Hair
Like skin, hair is susceptible to damage from overexposure to the sun’s ultraviolet radiation. This damage
affects the aesthetics of the hair and its mechanical and physical properties. UV filters added onto the hair
surface absorb the incident ultraviolet radiation and thereby protect the hair surfacefrom UV irradiation and
prevent this type of photo damage from occurring.
Effects of UVB radiation on hair
The effects of UVB radiation on the hair can be severe. UVB light breaks S-S bonds inside the hair fibre,
causing hair to experience a loss in cystine with a corresponding increase in cysteic acid. Such disruptions to
the disulfide linkages of the hair fibre can have a major impact onthe mechanical properties of the hair,
resulting in a loss of tensile strength and an increase in porosity. UV damage at the hair surface causes the
cuticle to become roughened and fragile, affecting the texture of the hair and making it harder to comb.
Tryptophan degradation is an indicator of this type of damage and can be measured spectrofluorometrically.
Melanin is also affected, makinghair more susceptible to colour fading. Photo damage can also cause dye
sorption irregularities in the colouring process.
Effects of UVA radiation on hair
Hoting1 did systematic studies on the influence of sunlight on dyed red human hair. He indicated that UVB and
IR irradiation did not cause a significant colour change, whereas UVA irradiation caused a significant and
perceivable change inthe dyed red hair colour. After 4 weeks of UVB irradiation, changes in L, a*, and b*
values of dyed red hair were only 0.3, 0.7 and 1.3, respectively. After 4 weeks of UVA irradiation those changes
were up to 4.4, 2.8 and 5.9, respectively. He concluded that red dye pigment introduced by the dyeing process
into the hair fibre acted as an additional photoreceptor in addition to the natural...
TM
Broad Spectrum UV Protection for Hair
ChromAveil is UV absorbing quat designed to give formulators substantive UVA and UVB protection for the hair
from both rinse-off and leave-on systems.
ChromAveil absorbs both in the UVB and UVA range, allowing for maximum protection of the hair tress. Not
only does it offer hair fibre protection with the UVB absorbance, but it can alsoprovide dyed hair colour fading
protection from the UVA absorbance. It offers substantiated UV protection that can be incorporated into daily
hair care products such as shampoos, conditioners and leave-in styling products.
Product
INCI name
Appearance
ChromAveil
Quaternium-95 (and) Propanediol
Viscous amber liquid
Features / Benefits
Protects dyed hair from colour fadecaused by
UVA radiation
Salon panel evaluation demonstrates consumer
perceivable colour differences between dyed
tresses with and without treatment
Protection of hair fibre integrity from degradation
that occurs after exposure to UVB rays
Excellent substantivity to hair
Excellent results from rinse-off and leave-on
systems
Non-silicone based
Applications
Shampoos
Conditioners,rinse-off and leave-on
Styling products
Structure and Composition
ChromAveil is a methoxycinnamic diester quat supplied as a 75% active amber liquid. As it is cationic in
nature, it is very substantive to hair, even from rinse-off systems. Its liquid form makes this ingredient easy to
pump, pour and mix while the high % actives concentration makes it easy to incorporate into formulations
withoutcarrying in high concentrations of unnecessary or unwanted diluents and solvents.
Croda Europe Ltd Cowick Hall Snaith Goole East Yorkshire DN14 9AA England
Tel +44 (0)1405 860551 Fax +44 (0)1405 861767 E-mail pc-europe@croda.com www.croda.com/europe
03/09 DC175/0
Page 1 of 17
Structure of ChromAveil
O
C
CH3
O
CH CH2 O
3
O
CH3
N+
O
CH2 CH O
O
- O S O CH
3C
3
O
O
O
Figure 1: Idealised structure of ChromAveil
UV Protection for Hair
Like skin, hair is susceptible to damage from overexposure to the sun’s ultraviolet radiation. This damage
affects the aesthetics of the hair and its mechanical and physical properties. UV filters added onto the hair
surface absorb the incident ultraviolet radiation and thereby protect the hair surfacefrom UV irradiation and
prevent this type of photo damage from occurring.
Effects of UVB radiation on hair
The effects of UVB radiation on the hair can be severe. UVB light breaks S-S bonds inside the hair fibre,
causing hair to experience a loss in cystine with a corresponding increase in cysteic acid. Such disruptions to
the disulfide linkages of the hair fibre can have a major impact onthe mechanical properties of the hair,
resulting in a loss of tensile strength and an increase in porosity. UV damage at the hair surface causes the
cuticle to become roughened and fragile, affecting the texture of the hair and making it harder to comb.
Tryptophan degradation is an indicator of this type of damage and can be measured spectrofluorometrically.
Melanin is also affected, makinghair more susceptible to colour fading. Photo damage can also cause dye
sorption irregularities in the colouring process.
Effects of UVA radiation on hair
Hoting1 did systematic studies on the influence of sunlight on dyed red human hair. He indicated that UVB and
IR irradiation did not cause a significant colour change, whereas UVA irradiation caused a significant and
perceivable change inthe dyed red hair colour. After 4 weeks of UVB irradiation, changes in L, a*, and b*
values of dyed red hair were only 0.3, 0.7 and 1.3, respectively. After 4 weeks of UVA irradiation those changes
were up to 4.4, 2.8 and 5.9, respectively. He concluded that red dye pigment introduced by the dyeing process
into the hair fibre acted as an additional photoreceptor in addition to the natural...
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