Shipping & Delivery  |  Safe & Secure Shopping  |  About Us  |  Contact Us Place order online or call   1-800-929-2431
Home page
   
0
Product search
Up

ArtistSupplySource.com » Painting & Painting Accessories » » » Natural Pigments Lac Dye (4 oz vol) - Color: Red
 

Natural Pigments Lac Dye (4 oz vol) - Color: Red

SKU: NAP-455-3110
The minimum order amount for this product line is $30.00
Natural Pigments Lac Dye (4 oz vol) - Color: Red
Discount table
Qty Price
 1   US$ 25.14 
 2   US$ 24.99 
 3   US$ 24.90 
 4-5   US$ 24.84 
 6-7   US$ 24.75 
 8-11   US$ 24.69 
 12+   US$ 24.60 
 
Price: US$ 25.14
Quantity:
 
 
 
Subtotal:
US$ 25.14


SSL seal



Product description

Details

Series 5

Rublev Lac Dye is a deep red colorant extracted from the crude shellac resin excreted by the lac insect, indigenous to southeast Asia. It is the coloring principle used to make lac lake or Indian Lake, a historical pigment used in manuscript and easel painting until the 19th century.

Pigment Names
Common Names: Dutch: lac-lac
English: lac dye
Finish: lakka
French: gomme laque
German: lic-lac
Italian: lacca
Spanish: laca
Synonyms: English: Bengal lac, cake lac, caked lac, gummilack, grained lac, kadi lakh, seed-lac, rangbatti



Origin and History
From ancient times, lac dye has been employed in India as a skin cosmetic and for the dyeing of wool and silk, while China has a tradition of usage for leather dyeing. The bright red colorant gave a lightfast tint to silk and wool. It is similar in color to dyes obtained from cochineal and kermes. The color of the dye can be modified by the choice of mordant from violet to red and brown. The use of the lac dye can be traced back to 250 AD when it was mentioned by Claudius Aelianus, a Roman writer on a volume about natural history. This dye remained a valuable commodity until the late 19th century, when Perkins an English Chemist synthesized the first chemical aniline dyes, which killed the natural dye industry. The pigment made from lac dye, Indian Lake, was listed by Winsor & Newton in their 1896 catalogue.

Source
Lac dye is a deep red colorant extracted from the crude shellac resin excreted by the lac insect, Laccifer (Tachardia) lacca (formerly Coccus lacca), indigenous to southeast Asia. The lac insect is most often found on banyan trees (Ficus benghalensis, or F. indica) and on juniper trees (Rhamnus jujuba). The dye develops in a resinous cocoon, known as "sticklac" on the twigs of over 160 host trees in an arc from northern India through to Southeast Asia. The dyestuff is obtained by aqueous extraction of sticklac; a byproduct of shellac production. The operation involves crushing the sticklac and extraction several times with water; insects and other debris are removed also at this stage. The dyestuff is obtained as a precipitate on acidification of the aqueous extract. The resinous residue is further processed to "seedlac" and then to the fully-refined "shellac."

The water-soluble dyestuff, lac dye, is composed of of laccaic acid, mainly in the form of ammonium salts. These pigments are present at up to 10% in sticklac that has been harvested before adult insects depart their cocoon. Processed seedlac and shellac have a low content of laccaic acids but retain a yellow water-insoluble pigment, erythrolaccin.
Lac dye is precipitated with alumina to make Indian Lake pigment before it can be used in painting.

Permanence and Compatibility
Colors prepared from lac dye are rather more permanent than those from cochineal and kermes (The Chemistry of Pigments, Ernest John Parry, p. 206), but less than madder, according to George Field (Chromatography,  1841, p. 185). Like all lakes prepared from natural dyes, they are not suitable for fresco painting. Lakes pigments made from lac dye perform best in oil and encaustic vehicles, somewhat less in tempera (egg, animal glue and casein) and least of all in watercolor (gum arabic).

Oil Absorption and Grinding
Lac dye must first be prepared as a lake pigment to be used in painting, because lac dye is somewhat soluble in water.

Toxicity
Lac dye is not considered toxic, but care should be used in handling the dry powder pigment to avoid inhaling the dust.

Pigment: Lac Dye
Pigment: Pigment: Lac Dye

Pigment Information
Color: Red
Colour Index: Natural Red 25 (75450)
Chemical Name: Laccaic Acid
Chemical Formula: C20H14O11
ASTM Lightfastness Rating
Acrylic: Not Rated
Oil: Not Rated
Watercolor: Not Rated
Properties
Specific Gravity:  
Density:  
Hardness (Mohs):  
Refractive Index:  







Specifications:

Color: Red
Color Index: Natural Red 25 (75450)
Chemical Name: Laccaic Acid
Acrylic: Not rated
Oil: Not rated
Watercolor: Not rated



Natural Pigments

Natural Pigments is a limited liability company based in Willits, California. We manufacture and distribute rare and hard-to-find materials for fine artists and decorators. We specialize in supplying artists' materials that were used in historical painting since pre-historic times up to and including the nineteenth century.

We constantly search for materials and products of the finest quality so that we can bring them direct to you from the source. To do so, we travel the world to find materials specifically for use by professional artists and decorators. We obtain minerals from mines in Afghanistan, Chile, Russia, Ukraine and Uzbekistan, to name a few places, processing these into natural pigments. We purchase resins, gums and plants from India, Kenya and Malaysia to make natural varnishes and painting mediums.

Our mission is to provide the largest variety of natural pigments, paints and other professional artists' supplies, enabling us to bring you a selection that makes shopping for rare and hard-to-find art materials easy. Our objective is to promote the education and use of these materials among artists by providing detailed information for their employment in encaustic, fresco, oil, watercolor and tempera painting.
All Natural Pigments products


Product weight: 0.25 lbs
 

This product is shipped from our warehouse in Gretna, NE, USA.
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
Please submit your product question using this form. All fields are required.

Your First name: *
Your email: *
Your phone: *
Product question:
Please don't mention your email and your phone in this field.
*
Submit question

Detailed images
Lac Dye (4 oz vol)




Brands:  0-9  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z All Natural Pigments products

Web Orders
24 hours a day, 7 days a week

Email Support
Contact Us

Telephone Customer Service
Mon-Fri: 9 a.m. to 5 p.m. EST
Toll Free: 1-800-929-2431
Tel: (616) 259-5711
Fax: (813) 944-4516



USA Address
S3 Stores, Inc.
2885 Sanford Ave SW #12717
Grandville, MI 49418
USA

Canadian Address
S3 Stores, Inc.
27 Joseph St.
Chatham, Ontario N7L 3G4
Canada

Payment Methods
We accept all major credit cards
Purchase Orders
Combating eCommerce Fraud
Copyright © 2005-2016 S3 Stores Holdings, Inc. All Rights Reserved.   Terms of Use | Privacy Policy