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20 Types of dye materials are selected. Most of them are plants, including flowers, fruits and roots. Two are insects. Two types of mineral are used as mordants.


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Chinese: 紫膠蟲

English: Lac insect

Scientific Name:  Kerria lacca (Kerr.)

Part: Whole

Category: Insect


The lac insect, also known as Kerria lacca, is a small insect native to Southeast Asia and India. It is a parasitic insect that feeds on the sap of host trees, particularly the "laksh" tree, which is where the name "lac" comes from.


The female lac insect produces a resinous secretion that hardens into a protective shell around her body. This shell, known as lac, is harvested and processed to produce various products, such as shellac, which is commonly used as a varnish, adhesive, and coating in a wide range of industries, including woodworking, food, and pharmaceuticals.


The harvesting of lac involves cutting the branches of the host trees, collecting the lac secretions, and processing them into various forms. This process has been practiced for centuries and is an important source of income for many rural communities in Southeast Asia and India.


In addition to its commercial uses, lac has also been used in traditional medicine for its purported health benefits. It is believed to have antioxidant, antimicrobial, and anti-inflammatory properties, and is used to treat a variety of conditions, such as fever, diarrhea, and skin disorders.




雌性紫膠蟲會分泌一種樹脂狀分泌物,這種分泌物會硬化成圍繞身體的保護殼。 人們採收和加工紫膠蟲的殼以生產各種產品,通常用作各種行業的清漆、粘合劑和塗料,包括木工、食品和藥品。





 1.  Logwood

 2.  Lac bugs

 3.  Comfrey

 4.  Cochineal

 5.  Madder

 6.  Connected shell

 7.  Knotweed

 8.  Huai Mi

 9.  pomegranate peel

10. Wormwood

11. Reseda(Weld)

12. winter green

13. cork

14. onion skin

15. chestnut

16. coconut

17. Hanna

18. five companions

19. black bean coat

20. Viola



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