Dewaxed Bleached Shellac
Dewaxed Bleached Shellac is non-toxic, edible and used widely in different indutries including Food, food packaging and allied industries.
Dewaxed Bleached Shellac
Dewaxed white shellac is used the same way as you would any other grade of shellac. The major difference between this shellac and the others is that it is a bit harder, shines a bit brighter, is completely free from wax.
Dewaxed Bleached Shellac is non-toxic, edible and used widely in different indutries including Food, food packaging and allied industries. Bleached lac has super characteristics and qualities i.e. adhesive, binding, hardening, gloss, odorless.
Fast drying, extending shelf life. And most clear, transparent or very light coloured Alkali solutions can be obtained from it. Bleached shellac is available in two grades: waxy and dewaxed bleached shellac.
Process of Dewaxed Bleached Shellac
The basic procedure in the bleached process consists in dissolving lac in acqueous sodium carbonate solution at 90-100 degree celcius, stirring off the dissolved materials and treating the solution withsodium hydrochloride solution and the start filteration after cooling down the temprature of solution. The bleached lac is reclaimed from the filtered solution with sulphuric acid. The percipiated bleached lac is then filtered and washed from water for removal of acid and dried.
The dewaxed bleached shellac powder is approved by fda department of usa for application in food and pharmaceutical products and conform to specification according to usp-21 nf 18.
Packing : 25 kgs packed in 5 ply craft paper bags.
Storage: Must be stored below 10 degree celcius in cool and dark place.
Industrial uses of Dewaxed Bleached Shellac:
- Coating of fruits and vegetables
- Coating in tablets & capsules
- Coating in confectionary
- Coating in aluminium foil, paper
- Coating in cosmetic industry
Dewaxed Bleached Shellac is also widely used in the following industry:
- Paints (primer for plastic parts and plastic film)
- Aluminium industry (primer for aluminium and aluminium foils)
- Flexographic and roto gravure printing inks
- Pharmaceuticals (for coating of pills, tables and gel caps, making barrier coat for Vitamins, coating for controlled release preparation)
- Confectionery (in coating of confections, chewing gums, marzipan chocolates, nutties, jelly beans etc)
- Coating of coffee beans
- Binder for food marking inks and stamping inks
- Binder for egg coating
- Barrier coating for processed food
- Vegetable/food coating of oranges, lemons, apples, avocados, plants tomatoes, dry flowers etc.
- In textiles –used in textile auxilliaries, felt hat stiffening agents)
- Cosmetics–hair spray, hair lacquers, hair sampoos
- Binder for mascara
- Additive for nail lacquers
- Wood finishing; binder for wood coatings and wood stains
- Filter/sealer for porous surfaces and cracks
- Antique frames for paintings
- Wood polish (french polish)
- Textile- textile auxiliaries Adhesives- (additive to special adhesives)
- Fire works and pyrotechnics– (binder for fireworks, matches etc and used in coating of magnesia
- Electric (it is binder for lamp cements).
- Electronics (it is binder for insulation materials, serves as additive to moulding compounds. Mass coating for print-plates and is adhesive for si-cells.)
- Grinding wheels (it is binder for additive of grinding wheels)
- Plastic (it is primer for plastic parts and films)
- Rubber (it is additive to natural rubber and sbr)
- Leather (in leather auxiliaries)
- Seeds coatings
- Fertilizers coatings
The coating performs one or more of the following functions:
Enhances and protects the gloss, serves as a barrier to moisture either entering or leaving the confection, prevents blocking together, extends shelf like :
Specification of Dewaxed Bleached Shellac
| Acid Value | 65-90 |
| Ester Value | 135-195 |
| Saponification Value | 200-260 |
| Melting Point (Capillary Method) | 75ºC-91ºC |
| Wax Content: | 0 .20% max. |
| Moisture: | 6% max. |
| Insolubility in Hot Alcohol | 0.10% max. |
| Rosin Content | Nil |
| Ash Content | 0.50% max. |
| Heavy Metals | 10 PPM |
| Colour | Pale Yellow |
| Arsenic | Nil |
| Iron | Nil |