1. They use different materials
Real silk generally refers to silk, including mulberry silk, tussah silk, castor silk, cassava silk, etc.
Spun silk is processed into yarn from defective cocoons and waste silk produced in sericulture, silk making and silk weaving.
2. Their production methods are different
Mulberry silk fiber and tussah silk fiber can retain the shape of the filament fiber into the filament yarn formed by bunching, and several other wild Silk fibers can only be transformed into short fibers for textile processing. Among the filament yarns formed by bundling mulberry silk fibers and tussah silk fibers, the filament yarns of mulberry silk fiber are the most important, accounting for the majority of natural filament yarns.
Traditional silk spinning uses the method of cutting cotton and circular combing to produce fine cotton, which is called circular combing process. The resulting fine cotton has fewer cotton particles, and the spun silk has a smooth appearance. Another method is to use a straight combing machine instead of a circular comb, which is called the combing process. The spun silk has more cotton particles and poor cleanliness.
3. Generally, the price of real silk is higher than that of spun silk for the same kind of goods, and the prices of different grades of goods are variable.
Extended information:
How to maintain silk and spun silk
1. Wash by hand below 30 degrees when washing, and turn the clothes over. If Soak it in water with a few drops of balsamic vinegar
The washed silk clothes will be soft and smooth.
2. It is not advisable to use alkaline detergents and soaps when washing. After washing, you should choose a ventilated place to dry to avoid damaging the
feel and color of silk clothes.
3. Silk clothes should be washed immediately after they become wet with sweat.
4. Do not hang silk clothes on hard metal hooks to prevent damage to the silk surface.
5. When the silk is not being worn, it is not advisable to put mothballs on it, otherwise it will easily become brittle.
6. The appropriate ironing temperature is 100 degrees, and it is best to use a lining cloth.
Baidu Encyclopedia-Silk
Baidu Encyclopedia-Spun Silk