Efficient double liquid dragging mechanism of continuous full-width cold pile dyeing/bleaching padding

Abstract

An efficient double liquid dragging mechanism of continuous full-width cold pile dyeing / bleaching paddingrelates to the technical field of continuous full-width coldpile dyeing / bleaching equipment, and aims at ensuring sufficient liquid dragging effect under the condition of controllable tension force. The mechanism comprises a working liquid dipping tank, wherein a driving roller and a driven roller are arranged in the working liquid dipping tank; the two sides of the driving roller and the driven roller are provided with a water fender,the driving roller, the driven roller and thewater fenders form a V-shaped dipping tank for liquid storage; adosing pipe is arranged above the V-shaped dipping tank. The excess air in a fabric structure is replaced by the working liquid in the working liquid dipping tank during the pre-wetting, and then the fabric is compacted by a pre-rolling liquid roller group, the moisture in the fabric structure after compaction is extruded out, and negative pressure is also generated between the yarns of the fabric and the fibers in the process to facilitateliquid feeding. Meanwhile, the surface tension of the fabric is changed due to the working liquid onthesurface of the fabric after the pre-wetting, so that the capillarity is effectively strengthened and the optimal liquid dragging rate can be achieved.

Description

technical field [0001] The invention relates to the technical field of continuous open-width cold-batch dyeing / bleaching equipment, and in particular to the structural improvement of the tank dyeing operation mode and the clamp dyeing operation mode. Background technique [0002] On the continuous open-width cold-batch dyeing / bleaching equipment, the fabric is generally carried out by the slot dyeing operation method or the clamp dyeing operation method, and then the liquid is finished by the uniform roll. As far as the open-width cold-batch dyeing / bleaching equipment is concerned, in addition to the importance of uniform roll liquid linear pressure and average degree, the effect of carrying liquid before uniform roll liquid is very important; under the uniform roll with the same linear pressure, such as Insufficient hydration of the fabric will cause many problems: If the amount of hydration in the left, middle and right of the fabric is not sufficient during dyeing, it wil...

AI Technical Summary

Problems solved by technology

As far as the open-width cold-batch dyeing / bleaching equipment is concerned, in addition to the importance of uniform roll liquid linear pressure and average degree, the effect of carrying liquid before uniform roll liquid is very important; under the uniform roll with the same linear pressure, such as Insufficient hydration of the fabric will cause many problems: If the amount of hydration in the left, middle and right of the fabric is not sufficient during dyeing, it will easily lead to deviations in the uniform roll, resulting in color difference or color spots in the left, middle and right; Insufficient will easily lead to the deviation of liquid rolling by uniform rolls, resulting in inconsistent hair effect on the left, middle and right; if the amount of liquid in the front and rear of the fabric is unstable during dyeing, it will easily lead to deviations of liquid rolling by uniform rolls, resulting in color difference between the head and tail of the roll; cold stacking If the fabric is not stable with liquid during bleaching, it will easily lead to the deviation of liquid rolling by the uniform roll, resulting in inconsistent hair effect at the head and tail of the cloth roll

But the disadvantage is that the contact time of the fabric with the working liquid is very short. For the current high-count knitted fabrics, the fabric does not have enough time to fully absorb the liquid and then passes through the uniform roller for rolling, which is easy to cause color difference and color flower problems.

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