Novel high-pressure refining process for silk folded cone yarn

Abstract

The invention discloses a novel high-pressure refining process for a silk folded cone yarn, wherein the high-pressure refining process is characterized by comprising the following steps: injecting water to raise the temperature, adding a refining agent, boosting the pressure, raising the temperature, refining continuously, reducing the pressure, draining liquid, and washing with water. A special processing process is adopted, so that a silk gum wrapped in the center of a silk folded yarn is removed more rapidly and efficiently, and gums of a raw silk in both the outer layer and a central core of the whole silk folded yarn are removed evenly and cleanly. Due to the reasonable processing process, the refining time of the silk folded cone yarn is shorter, the refining efficiency is higher, so that the damage of a fibroin of the raw silk on a surface layer of the silk folded yarn is reduced, and the quality of the silk folded yarn is further improved.

Description

【Technical field】 [0001] The invention relates to the technical field of silk refining, in particular to the technical field of a new high-pressure refining process for silk strand yarn. 【Background technique】 [0002] In addition to the main component silk fibroin in silk, there are also impurities such as sericin, wax, pigment, mulberry leaf fiber, etc. These impurities make the original characteristics of silk fiber not fully developed, damage the quality of silk products, and are also an obstacle to dyeing. These impurities must be removed through a refining process. [0003] Silk strands are twisted and plied by two or more raw silks to form strands. Its cross-sectional area is several times that of a single raw silk, and its twist is much higher than that of a single raw silk. At present, the scouring of silk strands in the industry adopts the skeining process in the open dyeing tank under normal pressure. This process is difficult to remove the sericin wrapped in the...

AI Technical Summary

Problems solved by technology

At present, the scouring of silk strands in the industry adopts the skeining process in the open dyeing tank under normal pressure. This process is difficult to remove the sericin wrapped in the center of the silk strands, so that the core of the silk strands cannot be dyed. "White core" phenomenon occurs due to coloring, which affects the dyeing quality of silk strands

If the scouring time is extended too much in order to remove the sericin in the center of the silk strands, it will damage the silk fibroin on the outer layer of the silk strands that has already been degummed and exposed in the scouring solution, reducing the quality of this part of silk fibroin. The strength and softness of the silk strands affect the quality of the silk strands. Therefore, how to degumming the center of the silk strands quickly and evenly degumming the entire silk strands is a major problem in this industry.