FOB Price
Obtenir le dernier prix55 ~ 65 / Kilogram
|Minimum Order
Localité:
-
Prix de commande minimale:
Commande minimale:
1 Kilogram
Packaging Detail:
aluminum foil bag, drum
Delivery Time:
3days
Supplying Ability:
1000 Kilogram per Month
Payment Type:
T/T, L/C, Western Union, Money Gram, PayPal
Personne àcontacter Mr. Huaiqi
RM406.building18,riyuecheng,huzhou,china, Huzhou, Zhejiang
Silk Fibroin Powder
Product Definition:Silk powder (silk fibrin powder) is a kind of macromolecular silk fibrin in powder form, which is made from the silk fibrin degummed under high pressure, requires special craft processing and smash through physical methods. Its molecular weight of is about *****0. It is tasteless, odorless, slightly soluble in water and insoluble in alcohol ether.
Description:
|
Items |
Specification |
|
Coarse silk powder |
Average particle size: *0 micron |
|
Superfine Silk Powder |
Average particle size: *0 Microns |
|
Superfine Silk Powder |
Mean particle diameter: 5 micrometers |
|
Ultrafine and ultra-micro silk powder |
Mean particle diameter: 2 micrometers |
|
Nanometer silk powder |
Mean particle diameter: **0 nanometers |
Key indicators:
|
Items |
Indicators |
|
Characters |
White or slight grayish yellow powders |
|
Total Nitrogen (%) |
≥*4.5 |
|
Weight loss on drying (%) |
≤6.0 |
|
Residue on ignition (%) |
≤4.0 |
|
PH value |
5.**7.0 |
Application characteristics:
(1)The silk
powder is an excellent natural moisturizing factor because of the
presence of hydrophilic gene in the structure of silk. It can
attach a very thin silk powder layer to the surface of skin, which
can absorb or release water with the change of the temperature and
humidity of skin. This has certain preventive and therapeutic
effects on skin protection, preventing and curing various skin
diseases caused by moisture and drying.
(2)The
crystalline structure of silk powder can reflect part of
ultraviolet ray, and the hollows formed by the spiral structure can
again absorb part of ultraviolet ray, so it will make the better
sun-screening effect by using the compound of silk powder and
sun-screening agent in sunscreen products.
(3) Silk
powder has a unique ability of keeping the oil, which makes it more
suitable to be used in cosmetics for oily skin.
(4)The
structural features of silk powder can help reduce the reflected
light. When being used in cosmetics in which the mica powder is
taken as substrate, it can reduce the reflected light and make the
skin show vivid and soft colors naturally. Compared with talcum
powder and titanium dioxide, silk powder has excellent air
permeability, users would feel particularly smooth after applying
cosmetics containing silk powder.
