Silk producing method

Abstract

The invention relates to a silk producing method which comprises the steps of: high-temperature direct steaming: processing silkworm cocoons with saturated steam in an direct steaming chamber or a direct steaming device, wherein the direct steaming temperature is 100 DEG C, the direct steaming time is 8 to 10 minutes; standing: standing the directly-steamed silkworm cocoons at a normal temperature for 18 to 26 hours; vacuum infiltration: infiltrating the stood silkworm cocoons by utilizing a vacuum infiltration method to subject the silkworm cocoons to absorbing water, wherein the infiltration water temperature is 35 DEG C to 40 DEG C, the infiltration time is 5 to 10 minutes, and the vacuum degree is 0.05 to 0.1 Mpa (megapascal); cocoon cooking: cooking the silkworm cocoons subjected to vacuum infiltration in a cocoon cooking device; silk reeling: dissociating cocoon filaments of the cooked silkworm cocoons at a temperature of 40 DEG C, and utilizing sericin to glue and connect the cocoon filaments to form raw silk; and post-reeling which includes steps of roughness removal, small reel silk sheet balancing, small reel vacuum moisture absorption, rereeling, large reel silk sheet balancing, arranging and the like. The silk producing method enables the neatness of the raw silk to be relatively high by utilizing high-temperature direct steaming and vacuum infiltration.

Description

technical field [0001] The invention relates to the textile field, in particular to a method for preparing silk. Background technique [0002] Silkworms have been domesticated in my country for more than 5,700 years. Silkworm cocoons can be used to reel raw silk and are important raw materials for silk spinning. The cocoon silk of silkworm cocoons is composed of sericin in the outer layer and silk fibroin in the inner layer. Sericin accounts for about 25% of the cocoon silk weight, and silk fibroin accounts for about 75%. The cocoon layer forms a large amount of glue points because the sericin of the cocoon silk outer layer is glued together. Due to the relatively high content of sericin in the current silkworm species in production, it is usually necessary to use hot water, hot air or additives to dissolve the sericin in the cocoon layer to reduce the adhesive force of the cocoon silk, so that the cocoon silk can be continuously formed during reeling. sequential dissociat...

AI Technical Summary

Problems solved by technology

However, the silk produced by the existing silk production process has lower clarity and poor quality.