Synchronous padding method for raw spinning cake

Abstract

The invention discloses a method for synchronous pressure dyeing for crude spinning cake in the post treatment and dyeing of spinning cake, with which, the two processes, namely the pressure washing and dyeing of crude spinning cakes are combined into one, and the pressure washing and dyeing are completed in one apparatus. The procedures for that are: loading yarn, pre treatment before dyeing, dyeing, and post treatment after dyeing. The invention improves the process flow, reduces the times for touching the spinning cakes, guarantees the shaping of spinning cakes; optimizes the post treatment, combines the pressure washing with the dyeing, improves the efficiency of post treatment, and reduces the load of pressure washing; changes the single circulation that goes from inner to outer into inner-outer alternative circulation, reduces difference between the inner and outer layer, and improves the dyeing quality.

Description

technical field [0001] The invention belongs to the post-treatment and dyeing process of viscose filament cake in the textile industry, especially the pressure washing and dyeing of raw silk cake are combined into one set of two processes, and the pressure washing and dyeing are completed in one device (dye vat). This method is especially suitable for the dyeing requirements of viscose filament cakes. Background technique [0002] Vicat fiber is made of cotton linters dissolved in certain chemical raw materials into a yellow viscose-like liquid, so it is also called viscose fiber, and then stretched and solidified into filaments in a coagulation bath, and then refined, dried, and intertwined. Tubes and so on. [0003] Usually, because the spun filaments contain a large amount of harmful substances (metals, sulfur and its compounds and complex elemental sulfur), these impurities will reduce the strength, elongation, and whiteness of the filaments when exposed to light and he...

AI Technical Summary

Problems solved by technology

[0009] 1. The processing time after spinning is long and the efficiency is low;

[0010] 2. The labor intensity of pressing the upper and lower silk and dehydrating the silk cake is high, and at the same time, it will cause damage to the shape of the silk cake and affect the dyeing quality;

[0011] 3. The pressure washing liquid is always circulated from the inside to the outside, and the difference between the inner and outer layers is large, which affects the dyeing quality;

[0012] ...

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