1. Cocoon drying: then dry the cocoon (kill the pupa) and remove the moisture in the silk; So that silk will not turn yellow easily.
2. Cocoon peeling: When peeling, remove the cocoon layer (the cocoon layer is thin and brittle, and the silk thread is messy, so it cannot be used for cotton beating.
3. Cotton selection (artificial tendon removal): In the process of making silk floss, there will be some tendons, which should be removed. If the Vitex negundo is not cleaned, it will appear in the light. If a small amount is normal, a large amount indicates that the quality of silk is not very good. ?
4. Wire drawing: Using the traditional manual wire drawing process, the semi-finished wires are loosened and stretched, and the wires are stacked layer by layer, criss-crossed, and compacted layer by layer.
1 kg silk quilt needs to consume more than 10000 cocoons, with more than 20 layers of silk laid layer by layer, which is uniform and dense, with strong quilt integrity and durability. ?
Cocoon layer can be reeled, and cocoon shell and waste silk after reeling can be used as raw materials for silk cotton and silk spinning, with different shapes, such as rectangle, oval waist, sphere or spindle, or slightly shrunk in the middle. Cocoons are white, yellow, light green and fleshy red, with irregular folds and silk attached, which is fluffy.
Extended data:
Cocoon quality inspection;
Cocoon harvesting must be determined according to cocoon inspection standards and priced at different levels. Cocoon quality is generally measured by the following value standards:
1, the value of silk quantity mainly refers to the silk yield and the silk yield of fresh cocoons.
2. Reeling value related to reeling production efficiency, including reeling rate and reeling length.
3. Silk quality value, including cocoon filament size, thickness difference and cocoon filament performance.
4. Group value refers to the uniformity of various characters between cocoons in the same batch and the number of cocoons in this batch.
These four values constitute the commodity value of raw cocoons in silk reeling industry. Cocoons with high cocoon loading rate, good relaxation, high filament and silk output rate are all excellent cocoons. In addition, white cocoon color, normal luster and uniform cocoon shape are also important standards for high-quality cocoons. The inspection of the above standards can generally be determined by dry shell quantity inspection and reeling inspection.
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