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> Data Bank > The test method of mater batch |
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(1) Full shade
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| rubber compound : 100g |
| Masterbatch : 1g |
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Add 1g master batch to 100g Rubber compound and mix it
on 2roller
mill, adjusting roll clearance to 0.5 mm and 5 minutes
at roll surface temperature of 45¡¾5¡É. |
(2) Tinting shade
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| rubber compound : 100g |
| TiO2 : 1g |
| Masterbatch : 1g |
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Add 1g master batch to 100g Rubber compound and mix it
on 2 roller mill, adjusting roll clearance to 0.5 mm and
5 minutes at roll surface temperature of 45¡¾5¡É. |
(3) Light Fastness
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Expose in FADE-O-METER and check the degree
of color fading after 100 hours
| E : Excellent |
G : Good |
N : Normal |
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(4) Heat Resistance of Base Pigment
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270 ~ 300¡É : E(Excellent)
250¡É above : VG(Very Good)
200¡É above : G (Good)
150¡É above : N (Normal) |
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(5) Migration
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Prepare and vulcanize base compound with
2§® thickness. Sandwich test sheet with base, on both sides
of which a glass plate are put respectively, heat it up
in an over at 100¡É for 2 hours with 100g/§² loading. Strip
off base compound sheets to check migration onto its surface.
| E : Excellent |
G : Good |
N : Normal |
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(6) Solvent resistance of base pigment
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Solvent tested in this issue are diethylene
glycol, ethyl alcohol, mineral
spirit, methylethylketone, ethyl acetate, butyl alcohol
and xylene. Dip 2g pigment in 20§¢ solvent for 30 minutes,
then change of color and coloration of solution are observed.
| E : Excellent |
G : Good |
N : Normal |
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(7) Acid and alkali resistance
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Dip test sheet partly in test solution and
boil at 100¡É in 1000cc of 2% sulphuric acid solution or
2% caustic soda
solution for 30 minutes and observe color change of test.
Sheet and coloration of solution.
| E : Excellent |
G : Good |
N : Normal |
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