Вьетнам
What are the natural dyes in Cambodia?
Red dye comes from lac insect nests, blue dye from indigo, yellow and green dye from prohut bark, and black dye from ebony bark. Cambodia’s modern silk-weaving centers are Takéo, Battambang, Beanteay Meanchey, Siem Reap and Kampot provinces.
Why do some countries allow natural dyes in food?
Indeed, the natural dyes are better products, simply because they do not contain chemicals harmful to health. … By contrast, synthetic dyes are very hazardous to health and are banned in countries with advanced environmental and public health laws, as the European Community.
What are the advantages of using natural dye over synthetic dyes?
Natural dyes are biodegradable and eco-friendly compared to synthetic dyes. Synthetic dyes have carcinogenic properties, can cause health problems, respiratory diseases, irritations and the list is long.
What are the advantages of artificial dye over natural dye?
An artificial dye is mainly defined by being one that is made from chemicals and not naturally derived. The benefits of using synthetic dyes are that they are far cheaper than the natural alternative, can be used on a variety of fabrics, and have the ability to produce incredibly vibrant colors.
What type of Cambodian weaving that yields single or two color fabrics?
The two major techniques are Ikat and uneven twill, a quicker method yielding single or two-colors fabrics. Fabrics include Pidan used as tapestry during religious ceremonies, Hôl Lboeuk as one of the most refined, Chorebap used for weddings, and Sarong and Krama using cotton and serving multiple purposes.
What are the properties of dye?
Properties of Dyes
- Shade (brightness or dullness)
- Fastness Requirements.
- Level Dyeing Properties.
- Ease of Application.
- Dusting.
- Environmental Concerns.