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Celluflow |
Celluflow is micro-porous spherical powder from natural material. TA-25 is cellulose acetate, and C-25 is cellulose. |
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[1] Characteristics |
| Celluflow TA-25 and C-25 have following special characteristics: |
*Natural material |
-- Soft touch and low skin irritation
-- Improve the product image
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*Spherical |
| -- Smoothly feeling and spread easily
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*Micro sponge |
| -- Swelled in the solvent, and change their volume and strength.
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*Highly porous |
-- Slow release of ingrained useful ingredients
-- Breath well
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*High physical and chemical strength |
-- Easy handling and high product stability
Celluflow have special characteristics; so they have been developed mainly as ingredients of cosmetics.
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[2] Uses |
Celluflow TA-25 and C-25 are useful in the following applications.
1)Ingredient of Cosmetics
Powder and Emulsified Cosmetics,
e.g. Foundation, Lipstick, Eye-color, Milky Lotion, and Skin Lotion etc.
2)Slow-release Support for Pharmaceuticals.
3)Bonding Additive of Toners.
4)Modifier for Pigments and Paints
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[3] Property of TA-25 and C-25 |
1) Both C-25 and TA-25 are hardly soluble in water.
2) While C-25 dissolves only specific solvents, TA-25 is more lipophile and soluble in methylene chloride and chloroform.
3) TA-25 is larger than in its total area of pores and total specific surface area of pores than C-25, and thus has a large porosity.
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| Summary of the Special Features & Functions of Celluflow |
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Special Feature |
Function
|
Sales Point |
| 1 |
Natural Material (Cellulose) |
Low Skin Irritant |
Natural |
| 2 |
Completely Spherical |
Smooth Feel
Spread Well |
Smooth |
| 3 |
Micro-Sponge |
*Absorb other ingredients with solvent,
swell and soften.
*Slowly release the absorbed ingredients,
enhance the durability.
*Absorb too much sebum and sweat blood. |
Natural |
| 1 |
Porosity |
Breath well.
Does not disturb skin breath. |
Skin Breath |
| 1 |
High stability, chemically and physically. |
Good endurance |
Stability |
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[4] Physical Properties |
The total volume of pores, total specific surface are of pores, and average diameter of pores are determined with an Hg pressed-in method. The rate of oil absorption with a Gardner-Coleman method.
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C-25 |
TA-25
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| True density (g/cm³) |
1.6 |
1.3 |
| Bulk density (g/cm³) |
0.6 |
0.3 |
| Total volume of pores (ml/g) |
0.8 |
2.1 |
| Total specific surface area of pores (m²/g) |
9.7 |
44.5 |
| Average diameter of pores (µm) |
0.34 |
0.19 |
| Rate of oil absorption (ml/100g) |
91.0 |
150.0 |
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[5] Particle size |
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C-25
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TA-25
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| Average particle size |
8 - 10µm |
6 - 8µm |
| Distribution of particle size |
 |
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[6] Specification |
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C-25 |
TA-25
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| Appearance |
Within the Limit |
white powder |
| Identification |
- |
On burning evolving a cellulose-specific odor and carbonizing. |
| pH |
5.0 - 7.5 |
6.0 - 8.0 |
| Heavy metals |
≤10 µg/g |
≤10 µg/g |
| Arsenic |
≤2 µg/g |
≤2 µg/g |
| Weight loss on drying |
≤8.0% |
≤5.0% |
| Starch test |
within the limit |
- |
| Water soluble |
≤0.2% |
- |
| Ignition residue |
≤0.10% |
- |
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