The difference between silk fiber and rubber silk fiber […]
The difference between silk fiber and rubber silk fiber is that silk fiber is the only natural silk fiber that is actually used. It is made by changing the mucilage of silk to solidify. According to textile fabric manufacturers, silk fibers are divided into many types according to the dietary nature of silk. Among them, silk fibers formed from mulberry leaves, silk fibers formed from oak leaves, and other silk fibers formed from cassava leaves, mulberry leaves, and hemp leaves. .
Mulberry silk fibers and rubber silk fibers can retain the shape of filament fibers in the filaments formed by bundles, while other wild silk fibers can only be transformed into short fibers for textile processing. Among the filaments formed by bundling of mulberry silk fibers and rubber silk fibers, the filaments of mulberry silk fibers are the most important and account for most of the natural filaments.
Silk fiber, also known as silk fiber, is the final silk fiber used.
The silk mesh covers the silk mesh fibers, and its existence has an important influence on the use, processing and product style of the fibers.
(1) As a protective agent, it can protect silk fibers from mechanical damage in textile processing.
(2) As a bundling agent, it can be used for the processing of bundling silkworm filaments, namely (sao) silk.
(3) As a shape memory agent, it locks the deformation of the silk fiber and releases it when necessary.
The glue content of each cocoon silk is uneven. The silk that starts to spit has a low glue content, and the silk that is spit out at the end has the highest glue content. Silk fiber has a relatively complete fibril structure, which can fully reflect the excellent quality of natural fibers.
Silk is a protein fiber, a nitrogen-containing polymer compound.
"Things", the single base of the macromolecule is alpha amino acid. The structural formula of α amino acid is RCH(NH)2COOH, and its amino group is located on the α carbon atom adjacent to hydroxy acid, so it is called α amino acid. According to the general structural formula of silk fibroin molecules, on the basis of the peptides of the macromolecular chain as a whole, the side basis of the connection is different, which is an important feature of natural protein fibers. There are more than 18 kinds of amino acids that make up silk fibroin.
According to the analysis of the law of molecular conformation changes in the process of fibrosis, the fibrillated liquid silk not only has long-chain molecules in β conformation, but also has a certain directionality, so crystals may be formed on the basis of the formation of crystal nuclei. Silk is the main body of silk. In addition, it also contains silk and a small amount of wax, fat, and inorganic substances.