Silk and the types of silk and its features
Silk is an animal and protein fiber that is soft, translucent, delicate and sturdy. One of the best materials used in textile especially carpet weaving is silk. This material has the capability of accepting operations such as bleaching, dyeing, gumming, and so on.
Types of silk
Generally in Iran there are two types of natural and synthetic silk which are divided into the following types in terms of its preparation for carpet weaving and dyeing.
1 – Raw silk:
Silk that is taken directly from the cocoon and turned into yarn by hand or machine. Raw silk is a silk that has been gummed and carved on it. The raw silk color is yellow or cream and becomes white after sludge.
2 – Baked Silk:
A silk whose gum and impurities are called cerazine, turns white after gum. Silk gum, one of the most important stages of silk preparation, must be dyed before dyeing.
3 – Cayenne Silk:
The silk scrub and the ends of the fibers and the remainder of the cocoon are called the cayenne silk, which is the inferior part of the fibers, which is not suitable for carpet weaving.
Silk Features & Features:
Natural silk used in carpet weaving has many capabilities that can be improved in dyeing and in preparing and preparing technical principles, which will improve the quality of carpet.
1- Silk can withstand temperatures up to 140 degrees and is more resistant to alkali than wool.
2 – Silk due to its softness does not absorb contamination and if soiled can be removed with soap and water.
Silk does not cause mildew or mildew.
4 – Silk is not soluble in water due to its compounds such as hydrogen, carbon, oxygen, nitrogen but loses its strength if boiled for a long time.
5 – Silk is a natural durable material, because its filaments are twisted together and not abrasive due to its softness and softness.
6 – Silk fibers withstand gum, dyeing and bleaching operations.
7 – Silk has a lot of coloring properties.