Cocoon cooking method capable of increasing cohesion times of fresh cocoon raw silk

Abstract

The invention belongs to the technical field of silkworm cocoon cooking, and in particular relates to a cocoon cooking method for increasing the cohesion times of fresh cocoons and raw silk, including sorting fresh cocoons, soaking in rice washing water, gamma ray irradiation, soaking in a cocoon cooking machine, cooking and adjusting several process. Compared with the prior art, the invention has the following advantages: by soaking the silkworm cocoons with rice-washing water, the stains on the surface of the silkworm cocoons can be effectively removed, and the surface of the silkworm cocoons can also be adsorbed while having a cleaning effect, and gamma rays are irradiated under the condition of negative pressure. , the peptide bond in the amorphous region in the cocoon is broken, the orientation of the cocoon molecules is reduced, and the water molecules can quickly enter the sericin molecules; in the dipping stage I and dipping stage II respectively, the corresponding aqueous solution enters the The gap between the sericin molecules weakens the intermolecular force, realizes the uniform softening of sericin, and at the same time enhances the mechanical properties of the raw silk.

Description

technical field [0001] The invention belongs to the technical field of silkworm cocoon cooking, and in particular relates to a cocoon cooking method for increasing the coagulation times of fresh cocoons and raw silk. Background technique [0002] Raw silk has good moisture absorption and air permeability, unique luster, soft hand feeling and is loved by people. China is the largest silk producer and exporter in the world. At present, raw silk production and trade volume account for more than 70% and 80% of the world's total output respectively. Traditional silk processing methods affect the dissociation of silk, which reduces the relaxation of cocoons. In addition, the use value of silkworm chrysalis will also be reduced. Therefore, many companies have begun to reel silk directly without drying or boiling cocoons. Research has found that , fresh cocoon silk is prone to problems such as broken ends, fluffing, sericin powder shedding, poor dyeing performance, etc. during the m...

AI Technical Summary

Problems solved by technology

[0002] Raw silk has good moisture absorption and air permeability, unique luster, soft hand feeling and is loved by people. China is the largest silk producer and exporter in the world. At present, raw silk production and trade volume account for more than 70% and 80% of the world's total output respectively. Traditional silk processing methods affect the dissociation of silk, which reduces the relaxation of cocoons. In addition, the use value of silkworm chrysalis will also be reduced. Therefore, many companies have begun to reel silk directly without drying or boiling cocoons. Research has found that , fresh cocoon silk is prone to problems such as broken ends, fluffing, sericin powder shedding, poor dyeing performance, etc. during the manufacturing process. Fresh cocoon silk cannot meet the weaving requirements of high-quality satin. It is of great significance to meet the production requirements of high-quality silk and satin. The factors affecting the quality of fresh cocoon silk include cleaning, cleaning, cohesion, and breaking strength. The cleanliness and cleanliness of fresh cocoon silk are not only related to the quality of the cocoon, but also It is related to the cocoon cooking process and the silk reeling process. It is found through research that the cocoon cooking process has no obvious effect on the cleanliness, cleanliness and breaking strength of fresh cocoon silk, but has a significant impact on the cohesion of fresh cocoon silk. Conventional fresh cocoon silk processing is not effective. Cocoon drying, cocoon reeling directly without boiling, this process reduces silk making links, reduces costs, reduces energy consumption, and at the same time maintains the unique original properties of cocoon silk, but the cocoon silk processed by this production method has sericin Low viscosity, poor bonding degree between cocoon silk, high sericin content on the surface of cocoon silk, high rigidity, rough hand feeling and other shortcomings, thus affecting the manufacture of high-grade satin. The cohesion of raw silk refers to the cocoon silk that constitutes raw silk. After friction, The difficulty of splitting reflects the firmness of the cocoon threads that make up the raw silk. The cohesion of the raw silk has a lot to do with the cocoon cooking process. Therefore, during weaving, sericin is easy to fall off, and after pre-weaving treatment, the surface of the thread is uneven and fuzzy, the thread is split, and the cohesion index of fresh cocoon silk is reduced, which has become a major problem affecting the production of high-quality silk and satin.