Stick lac

Stangen-blei, n. bar lead, -eiaen, n. bar iron, rod iron, -gold, n, ingot gold, -kali, n. potash in sticks, stick potash, -kitt, m. stick cement, -kupfer, n, bar copper, rod copper, -lack, m. stick-lac. -schwefel, m. roll sulfur, stick sulfur, cane brimstone, -seife, /. bar soap, -silber, n, ingot silver, -spat, m, columnar barite, -stahl, m. bar steel rod steel, -stein, m. pycnite (columnar topaz), -tabak, m. roll tobacco, -wachs, n. stick wax, stick polish, -zinn, n, bar tin. 

Tl,e dried branches and twigs are called stick-lac, which serves the double purpose of dyeing, varnish-making, and sealing wax. 

The female lac insect secretes on the twigs of the host plant a resinous substance, stick-lac, from which shellac and lac dye are produced. 

Lac dye is obtained in the production of shellac from stick-lac in India, and it was used in the past on a large scale for dyeing purposes. In Mameluke carpets of the 16th century, this dye often is found. I have been able to identify it on four different objects. 

Manufacture. Obtained from the secretions of lac insects, which are parastic on the small branches of some kinds of wood, e.g. croton, in the districts of east India and Indo-China. These insects secrete resinous matter due to stimuli from the females, and the branches are eventually covered by the substance this is called Stick Lac . The substance is collected, selected and powdered. Then this is dipped in water and a clear red dye is extracted from it. The residue is called Raw Lac . It is melted,... 

Lac color is a natural food additive extracted from a stick lac, which is a secretion of the insect Coccus laccae... 

Lac dye is a natural food additive extracted from a stick lac, which is a secretion of the insect Coccus laccae (Laccifer lacca Kerr), and is widely used for coloring food. It is known that its red color is derived from water-soluble pigments including laccaic acids A, B, C, and E. 

Lac-dye is also a product of a species of Coccus, the Coccus lacca or C. ficus. These insects live on the branches of Ficus religiosa and Ficus indica. A resinous matter exudes from the tree and envelopes the insects. The twigs are cut off along with the resinj and sold as stick-lac. On treating stick-lac with water the colouring-matter dissolves, and the residue melted and squeezed through calico, forms commercial shellac. The exact method by which commercial lac-dye is prepared is kept secret, but it probably consists in precipitation of an alkaline decoction of stick-lac with alum. 

Lac incmstations deposited by the insects on trees are separated from the twigs by scraping. Lac, thus gathered is known as stick lac. It contains lac resin together with woody materials, sand, dust and other water-soluble impurities. This is subjected to various refining processes. The various refined forms of sticklac are seedlac, shellac, buttonlac, garnet lac, bleached lac, and decolorized lac. 

Lac is a resinous substance produced mainly from the banyan txee of the East Indies. It is the product of on insect. Stick lac is the resin in its natural state seed lac when broken up, cleaned of impurities and washed shellac when it is melted and formed in thin flakes. United with ivory-black or vermilion it makes sealing wax. 

Lac resin Shellac gum Shellac orange S-40 Stick lac White shellac Classification Fatty acid... 

Stibic anhydride. See Antimony pentoxide Stibine, diphenyl-, 2-ethylhexanoate Stibine, ((2-ethyl-1-oxohexyl) oxy) diphenyl-. See Diphenylstibine 2-ethyl hexoate Stibine, trichloro-. See Antimony trichloride Stibine, trifluoro-. See Antimony trifluoride Stick lac. See Shellac (3P)-Stigmast-5-en-3-ol. See p-Sitosterol Stigmata maydis extract. See Com (Zea mays) silk extract Stilbene... 

The existing inferior stick lac was already used for dyeing red morocco leather, and had a healthy export market to Portugal and Barbary. However Bancroft was also active in trying to define a pure form of the lac, claiming that... 

Laccaic acid D is also called flavokermesic or xanthokermesic acid, and closely resembles kermesic acid (q.v.) in structure. Laccaic acid F has so far only been found in Thai stick lac (Hu et /., 1997 cf While and Kirby, 2001). 

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