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Sell MM TN Shellac
[
Product #: MM TN]
Price: 2605.00
USD [1 Ton]
MACHINE MADE SHELLAC:
Machine Made Shellac is produced in two different ways. One is the heat process where the same principle as in the case of hand made shellac is applied and the second is solvent process where pure shellac is extracted from Seedlac by suitable solvents.
Under heat process the separation of pure lac is achieved by melting Seedlac by stream heat and squeezing the soft molten lac through filter by means of Hydraulic presses. The molten lac is then stretched by means of rollers into long continuous sheet which is broken into flakes to from the machine made Shellac under heat process. This shellac has an impurity content varying from 0.5 to 1%. The most popular grade is TN, Lemon and Orange.
Under Solvent Process the separation of insoluble impurities is achieved by dissolving the lac in a suitable solvent, usually industrial alcohol is used, the solution is then filtered through fine cloth and the alcohol is recovered by boiling the solution. The molten shellac is then stretched to the required thickness on a roller followed by stretching machines. The solvent process lends itself to manufacture of different type of shellac containing varying percentage of shellac wax.
Grades of Heat Process Shellac:
1. TN Shellac
2. Lemon Shellac
3. Orange Shellac
4. Standard One Shellac
5. Black TN Shellac
TN Shellac
Essential
Requirements
Matter Insoluble
In Hot Alcohol
Basic Limit
0.75%
Relaxed Limit 1.0%
Optional
Requirements Color Index 12 Max.
Rosin & Orpiment Normally free from Rosin & Orpiment except when a specified percentage is agreed between buyer & seller.
Volatile Matter Not more than 2%
Matter Soluble in Water 0.5% Max.
Ash 0.3%
Wax Not more than 4.5%
Flow As agreed between Buyer & Seller
Heat Polymerization As agreed between Buyer & Seller usually at temperature of 150° C.
Acid Value As agreed between Buyer & Seller
Lead Content As agreed between Buyer & Seller
Iodine Value As agreed between Buyer & Seller
Minimum Order: 1 Ton
Delivery Lead Time: 15 day(s)
Supply Ability: 125 Ton/months
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Sampa Shellac Industries
