Nippon Kayaku (Thailand) CO., LTD.
Technical Service Center「Light Fastness effects of flame retardant agent and ultraviolet absorber on CDP/PET fabrics」

・ The data below shows the light fastness levels of Nippon Kayaku’s recommended trichromatic colors for
CDP: KAC Yellow 3RL-ED, KAC Red GL-ED, and KAC Blue BG-ED(N).
・ With the recommended trichromatic colors, a light fastness level of grade 4 can be maintained, as shownin the top row, but when a flame retardant agent is added, the light fastness level is less than grade 4.
・ With ultraviolet absorber, the light fastness can be significantly improved even with the addition of flame
retardant agent.
RecipeKAC Yellow 3RL-ED
KAC Red GL-ED
KAC Blue BG-ED(N)% o.w.f.
Grey
Beige
0.052
0.091
0.041
0.071
0.063
0.031

KAC Yellow 3RL-ED
0.052
0.091
KAC Red GL-ED
0.041
0.071
KAC Blue BG-ED(N)
0.063
0.031
Kayastab F02 (Flame retardant) 10% o.w.f.
KAC Yellow 3RL-ED
0.052
0.091
KAC Red GL-ED
0.041
0.071
KAC Blue BG-ED(N)
0.063
0.031
Kayastab F02 (Flame retardant) 10% o.w.f.
Reform UV-326 (UV absorber) 2% o.w.f.

Grade 44Light Fastness ISO 105-B02 Xenon
Grade 5
Grade 444↓

Grade 5

4↓

4-5

4-5

・ Some customers may use different combinations of trichromatic colors. The data below shows the use ofKAC Red GRL-ED instead of KAC Red GL-ED. Most standards in Japan use Carbon arc light fastness,
but Xenon arc light fastness is closer to actual sunlight.
・ Although KAC Red GRL-ED has strong light fastness properties under Carbon arc, it has relatively low
light fastness levels under Xenon arc. Even without the addition of Flame retardant agent, the lightfastness level of the dye is lower than grade 4.

NIPPON KAYAKU (THAILAND) CO., LTD.
ADD: 13th Floor, Ramaland Building, 952 Rama IV road, Suriyawongse, Bangrak, Bangkok 10500
TEL: +66-2-235-2843 HP: http://www.kayakuth.co.th

Recipe

KAC Yellow 3RL-ED
KAC Red GRL-ED
KAC Blue BG-ED(N)% o.w.f.
GreyBeige
0.059
0.105
0.032
0.054
0.061
0.032

Grade 44↓Light Fastness ISO 105-B02 Xenon
Grade 5
Grade 44↓

KAC Yellow 3RL-ED
0.059
0.105
KAC Red GRL-ED
0.032
0.054
KAC Blue BG-ED(N)
0.061
0.032
Kayastab F02 (Flame retardant) 10% o.w.f.

4↓4↓

KAC Yellow 3RL-ED
0.059
0.105
KAC Red GRL-ED
0.032
0.054
KAC Blue BG-ED(N)
0.061
0.032
Kayastab F02 (Flame retardant) 10% o.w.f.
Reform UV-326 (UV absorber) 2% o.w.f.

4↓

4↓Grade 5・ The trichromatic combination used below, KAC Yellow 3RL-ED, Red GL-ED, and Blue GTL-ED(T), isNippon Kayaku’s high light fastness trichromatic colors. These trichromatic colors are recommended
when light fastness standard of grade 5 or higher is required.
・ When flame retardant agent is added, the light fastness decreases. To obtain high light fastness, UV
absorber is recommended.
RecipeKAC Yellow 3RL-ED
KAC Red GL-ED
KAC Blue GTL-ED(T)% o.w.f.
Grey
Beige
0.045
0.080
0.051
0.082
0.2700.130

KAC Yellow 3RL-ED
0.045
0.080
KAC Red GL-ED
0.051
0.082
KAC Blue GTL-ED(T)
0.270
0.130
Kayastab F02 (Flame retardant) 10% o.w.f.
KAC Yellow 3RL-ED0.045
0.080
KAC Red GL-ED
0.051
0.082
KAC Blue GTL-ED(T)
0.270
0.130
Kayastab F02 (Flame retardant) 10% o.w.f.
Reform UV-326 (UV absorber) 2% o.w.f.

Grade 55

Light Fastness ISO 105-B02 Xenon
Grade 6
Grade 555↓

Grade 65↓

5-6

5-6

In summary, if high level of light fastness is required, the addition of UV absorber and the use of trichromatic
combination KAC Yellow 3RL-ED, KAC Red GL-ED, and KAC Blue GTL-ED(T) is recommended.

NIPPON KAYAKU (THAILAND) CO., LTD.
ADD: 13th Floor, Ramaland Building, 952 Rama IV road, Suriyawongse, Bangrak, Bangkok 10500
TEL: +66-2-235-2843 HP: http://www.kayakuth.co.th