Shellac
Shellac is a natural gum resin, a natures gift to the mankind and is used in over 100 industries and is only produced in India, Thailand and china and is exported to over 100 countries of the world. It is natural, non toxic & edible resin.
Grades of Shellac :
- Hand Made
- Machine Made
a) Heat Process
b) Solvent Process
Hand Made Shellac :
Seedlac is converted into Shellac either by traditional hand made process or comparatively modern machine made process. Hand made shellac is produced by properly blending Seedlac into long narrow cloth bag and heating one end over charcoal fire and the other end is attached to a windless and is gradually twisted. The heat produced by the charcoal fire melts the lac which is forced out through the cloth by pressure. The molten lac is scraped out and drawn into sheets manually and left to dry. This process requires considerable manual skill and long experience.Grades of Hand Made Shellac :
-
JLF Light Pure Buttonlac
JLF Light Pure Buttonlac Essential
RequirementsMatter
insoluble in
hot alcoholBasic
Limit2.0% Relaxed
Limit3.0% Optional
RequirementsColor Index 8 Max. Rosin & Orpiment Free from Rosin & Orpiment Volatile Matter Not more than 2% Bleach Index As agreed between Buyer & Seller Matter soluble in water 0.5% Max. Ash 0.5% Wax Not more than 5.5% Flow As agreed between Buyer & Seller Heat Polymerisation 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 -
JLF Kusmi Buttonlac
JLF Kusmi Buttonlac Essential
RequirementsMatter
insoluble in
hot alcoholBasic
Limit0.75% Relaxed
Limit1.0% Optional
RequirementsColor Index 6 Max. Rosin & Orpiment Free from Rosin & Orpiment Volatile Matter Not more than 2% Matter soluble in water 0.5% Max. Ash 0.5% Wax Not more than 5.5% Flow As agreed between Buyer & Seller Heat Polymerisation 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 -
JLF Lemon 1 Shellac (Hand Made)
JLF Lemon 1 Shellac (Hand Made) Essential
RequirementsMatter
insoluble in
hot alcoholBasic
Limit1.0% Relaxed
Limit1.5% Optional
RequirementsColor Index 12 Max. Rosin & Orpiment Free from Rosin & Orpiment Volatile Matter Not more than 2% Matter soluble in water 0.5% Max. Ash 0.5% Wax Not more than 5.5% Flow As agreed between Buyer & Seller Heat Polymerisation 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 -
JLF Lemon 2 Shellac (Hand Made)
JLF Lemon 2 Shellac (Hand Made) Essential
RequirementsMatter
insoluble in
hot alcoholBasic
Limit1.25% Relaxed
Limit2.0% Optional
RequirementsColor Index 15 Max. Rosin & Orpiment Free from Rosin & Orpiment Volatile Matter Not more than 2% Matter soluble in water 0.5% Max. Ash 0.8% Wax Not more than 5.5% Flow As agreed between Buyer & Seller Heat Polymerisation 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
Machine Made Shellac :
Machine Made Shellac is produced in two different ways-Heat process and Solvent process.
Heat Process
Separation of pure lac is achieved by melting seedlac by steam 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 and continuous sheets which is broken into pieces to form the3 machine-made shellac under heat process.
Grades of heat process Shellac (Machine made) :
-
JLF Orange Shellac (Machine Made)
JLF Orange Shellac (Machine Made) Essential
RequirementsMatter
insoluble in
hot alcoholBasic
Limit1.00% Relaxed
Limit1.50% Optional
RequirementsColor Index N.A. 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 Polymerisation 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 -
JLF TN Shellac (Machine Made)
JLF TN Shellac (Machine Made) Essential
RequirementsMatter
insoluble in
hot alcoholBasic
Limit0.75% Relaxed
Limit1.0% Optional
RequirementsColor 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 Polymerisation 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 -
JLF Lemon 1 Shellac (Machine Made)
JLF Lemon 1 Shellac (Machine Made) Essential
RequirementsMatter
insoluble in
hot alcoholBasic
Limit0.75% Relaxed
Limit1.0% Optional
RequirementsColor 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 Polymerisation 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 -
JLF Black TN Shellac (Machine Made)
JLF Black TN Shellac (Machine Made) Essential
RequirementsMatter
insoluble in
hot alcoholBasic
Limit1.50% Relaxed
Limit2.00% Optional
RequirementsColor Index 30 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 Polymerisation 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 -
JLF Standard 1 Shellac (Machine Made)
JLF Standard 1 Shellac (Machine Made) Essential
RequirementsMatter
insoluble in
hot alcoholBasic
Limit1.25% Relaxed
Limit1.50% Optional
RequirementsColor Index 18 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 Polymerisation 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
Solvent Process
The separation of insoluble impurities is achieved by dissolving the lac in a suitable solvent, usually industrial alcohol, 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. Dewaxed or partly dewaxed shellac may be manufactured by this process. The wax content may be as low as 0.2%.
Grades of dewaxed Shellac :
-
JLF Dewaxed Orange Shellac
JLF Dewaxed Orange Shellac Color Gardner in 20% ethanol Max. 16 Acid No. (DAB 9) 65-80 Arsenic (DAB 9) max. ppm 15 Ash (DAB 9) max. 0.2% Insolubility in hot alcohol max. 0.2% Melting Range (DAB 9) ° C 65-80 Moisture max. 2.0% Saponification No. (DAB 9) 190-230 Wax (USP XXIII) max. 0.2% -
JLF Dewaxed Lemon Shellac
JLF Dewaxed Lemon Shellac Color Gardner in 20% ethanol Max. 15 Acid No. (DAB 9) 65-80 Arsenic (DAB 9) max. ppm 1.5 Ash (DAB 9) max. 0.2% Insolubility in hot alcohol max. 0.2% Melting Range (DAB 9) ° C 65-80 Moisture max. 2.0% Saponification No. (DAB 9) 190-230 Wax (USP XXIII) max. 0.2% -
JLF Dewaxed Garnet Shellac
JLF Dewaxed Garnet Shellac Color Dark Acid No. (DAB 9) 65-80 Arsenic (DAB 9) max. ppm 1.5 Ash (DAB 9) max. 0.2% Insolubility in hot alcohol max. 0.2% Melting Range (DAB 9) ° C 65-80 Moisture max. 2.0% Saponification No. (DAB 9) 190-230 Wax (USP XXIII) max. 0.2% -
JLF Dewaxed Blonde Shellac
JLF Dewaxed Blonde Shellac Color Gardner in 20% ethanol max. 13 Acid No. (DAB 9) 65-80 Arsenic (DAB 9) max. ppm 1.5 Ash (DAB 9) max. 0.2% Insolubility in hot alcohol max. 0.1% Melting Range (DAB 9) ° C 65-80 Moisture max. 2.0% Saponification No. (DAB 9) 190-230 Wax (USP XXIII) max. 0.2% -
JLF Super Blonde Shellac
JLF Super Blonde Shellac Color Gardner in 20% ethanol max. 11 Acid No. (DAB 9) 65-80 Arsenic (DAB 9) max. ppm 1.5 Ash (DAB 9) max. 0.2% Insolubility in hot alcohol max. 0.1% Melting Range (DAB 9) ° C 65-80 Moisture max. 2.0% Saponification No. (DAB 9) 190-230 Wax (USP XXIII) max. 0.2% -
JLF Bleached Shellac
JLF Bleached Shellac Dewaxed Bleached Shellac
Seedlac is dissolved in an aqueous-alkali solution, filtered, dewaxed and bleached with Sodium Hypochlorite to the desired color. The shellac is then precipitated from the solution with Sulphuric acid and dried.
Application
Fruit coating, chocolate coating, protective coating is capsule & tablets in pharmaceuticals, varnishes for paints and printing inks, wood coatings, hot stiffening, cosmetics, electrical industries etc.
Grade : Dewaxed Bleached Shellac Color Max. 1.5 Acid No. 75-90 Ash Max. 0.5% Insolubility in hot alcohol Max. 0.2% Moisture Max. 5.0% Saponification No. 210-250 Wax Max. 0.2%
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"We at JLF always strive to manufacture Zero defect quality products at a very competitive cost. "
- Late Mr.Ramotar Saraogi