Download - Aadhya shellac presentation
Aadhya International www.aadhyainternational.com
Aadhya International is unique in producing all types of Lac Products like Machine Made Shellac Handmade Shellac Dewaxed Decolorized Shellac Flakes Dewaxed Bleached Lac (Powder) Bleached white shellac Shellac Aleuritic Powder – (For Perfumes) Seedlac Gasket Shellac Cement (Adhesive Cum Sealant used in Engines and Flanged
Joints, Generally Automobiles and Allied Industries), Shellac Laquers, Shellac Quoting, Anti corrosive, Wood steins, Shellac Wax,
etc.
Shellac
Shellac, the only known commercial resin of animal origin, is a hard, tough, amorphous and easily brittle resinous solid. It is practically odorless in the cold, but evolves a characteristic smell on heating or melting . Superior grades are light yellow in color, while the inferior grades range from deep orange brown to almost dark red. The resin is associated with coloring matter, odoriferous principles and varying quantity of wax. Lac resin entirely free from these associates is unknown although commercially available Dewaxed and decolorized lac is the closest approximation.
Shellac dissolves readily in alcohol and organic acids. The most popular solvent of shellac is spirit.
The shellac produced is normally allowed to cool off after stretching for a few hours and then transferred to a cool-shedded godown. It is best stored in air-conditioned ware-houses which maintains a temperature between 14-18oC.
Shellac: A Natural Product
Shellac is secreted onto a branch by insects smaller than a grain of rice. It takes a tremendous number of these insects to create a pound of useable shellac
Our Products
Shellac Flakes Seedlac Button Lac Bleached Lac Dewaxed Shellac Flakes Dewaxed Bleached Shellac Powder Bleached White shellac
Shellac Flakes
Shellac Flakes
Shellac is perfect for antique restoration, furniture refinishing, casework, architectural woodwork, toys and general woodworking. Also used in fruit coating, pharmaceutical industry, lather industry, confectionery and candy industries, cosmetic industry, printing industry, electrical and electronics Indusrty,Food packaging industry and many more .
Seedlac
Seedlac is obtained from sticklac .Sticklac crushed and sieved to remove sand and dust. It is then washed in large vats again and again and at the same time rubbing the lac against the sides of the Vat to break open the insect bodies and dissolving the coloring matter in water.
Seedlac is mostly used for conversion into Bleached Shellac and different types of Shellac.
Grades of Seedlac:Genuine Bysacki Fine Bysacki Manbhum Fine Bysacki Kushmi Golden Bysacki Golden Kushmi
Shellac Buttons
The shellac is refined in stages and becomes lighter in color and more transparent. Brown Seedlac is first refined into "Button Lac," so called because it is poured out into disks for easy handling.
Grades of Button Lac: -
Light Pure Shellac Button
Kushmi One Shellac Button
Uses of Button Lac: -Furniture Polish
Bleached Shellac
Bleached shellac are Non-Toxic, physiologically harmless (edible), and is being used widely in food industries, food packaging and allied industries.
It is being used in Binding, Adhesive, Hardening, Gloss, Odorless, Fast Drying, extending Shelf Life (in absence of refrigeration) etc. Clear, transparent or very light colored alcoholic or water – alkali solutions can be obtained from Bleached shellac
Shellac Properties
(1)Shellac dissolves in a wide variety of alkaline or rapidly drying alcoholic solvents, but is resistant to a number of other solvents, particularly hydrocarbons.
(2)Its films show excellent adhesion to a wide variety of surfaces, possessing high gloss, hardness and strength.
(3)shellac is a powerful bonding material with low thermal conductivity and a small coefficient and expansion. Its thermal plasticity and capacity of absorbing large amounts of filters are noteworthy.
(4) Its electrical properties include high dielectric strength, low dielectric constant and characteristic freedom from tracking.
(5) It is resistant to the action of ultraviolet rays.
(6) Shellac is non-poisonous.
Industrial Uses
Wood Finishing Printing Ink Electrical Industry Shellac for Pharmaceutical,Confectionary Glazes Fruit CoatingCosmetic Industry Paper Varnish Hat Industry Photographic Industry Leather IndustryFootwear industry French Polish
Shellac Moulding
The moulding properties of shellac are utilized in the manufacture of various products: Gramophone Records: Dental compositions: Sealing WaxRubber Industry Paint Industry Grinding Wheels Automobile Industry
Shellac Derivatives
The important by-products obtained during manufacture of Shellac are Shellac Flakes , Shellac Buttons, Seedlac, Shellac Wax and Lac Dye.
Seedlac
Shellac Flakes
Shellac Buttons
Shellac Powder
Dewaxed Bleached Shellac
Machine Made TN Shellac
Acid Value 65-76
Ester Value 110-175
Saponification Value 175-240
Wax Content 5.50% max.
Moisture 2% max.
Heavy Metals as Pb 10 PPM max.
Insolubility in Hot Alcohol 0.75%-1.00%
DewaxedGrade : Platina Shellac (Physical Data)
Color Gardner in 20% ethanol Max. 8
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) 65-85 C
Moisture max. % 2.0
Saponification No. (DAB 9) 190-230
Wax (USP XXIII) Max. % 0.2
Dewaxed Grade :Super Blond Shellac (Physical Data)
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. % 0.2
Melting Range (DAB 9) 65-85 C
Moisture max. % 2.0
Saponification No. (DAB 9) 190-230
Wax (USP XXIII) Max. % 0.2
Dewaxed Grade : Blond Shellac (Physical Properties)
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. % 0.2
Melting Range (DAB 9) 65-85 C
Moisture Max. % 2.0
Saponification No. (DAB 9) 190-230
Wax (USP XXIII) Max. % 0.2
Dewaxed Grade Garnet Shellac (Physical Data)
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) 65-85 C
Moisture Max. % 2.0
Saponification No. (DAB 9) 190-230
Wax (USP XXIII) Max. % 0.2
Dewaxed Grade Dewaxed Bleached Shellac
Acid Value
Ester Value
Saponification Value
Melting Point
Wax Content
Moisture
Insolubility in Hot Alcohol
Rosin Content
Ash Content
Heavy Metals
Color
65 – 90
135 – 195
200 -260
75 C - 91 C
0.20% Max
6% Max
0.10% Max
Nil
0.50% Max
10 PPM
Pale Yellow
Shellac Flakes Grade Shellac TN
Acid Value
Ester Value
Saponification Value
Wax Content
Moisture
Heavy Metals as Pb
Insolubility in Hot Alcohol
65 – 76
110 -175
175 -240
5.50% Max
2% Max
10 PPM Max
0.75% - 1.00 %