Residual alkali neutralizing device for mercerizing and operation technology of residual alkali neutralizing device

Abstract

The invention discloses a residual alkali neutralizing device for mercerizing. The residual alkali neutralizing device comprises an alkali liquor groove with concentrated alkali, an expanding faller and six washing water grooves arranged behind the expanding faller, the sixth washing water groove is communicated with tap water through a flow velocity adjustment valve, the fifth washing water groove is communicated with a liquid medicine cylinder through a flow velocity adjustment valve, and liquid in the next washing water grooves overflows into the previous washing water grooves. An operationtechnology of the device includes the following steps that a cloth with a width is subjected to concentrated alkali treatment in the alkali liquor groove and stretched to increase the width on the expanding faller, and sequentially enters the first washing water groove and the fifth washing water groove, meanwhile, residual alkali is diluted and neutralized, and the cloth with the width enters the sixth washing water groove to be rinsed with clear water. According to the device, the six washing water grooves formed in a mercerizing machine are sufficiently utilized, the process of neutralizing is executed in advance at the mercerizing machine, a dye vat or a full width washing water machine is omitted, on the premise of guaranteeing effective alkali removal and uniformity of all parts ofthe cloth with the width, water and electricity are saved, production efficiency is improved, energy saving and consumption lowering are easy, and efficiency is improved.

Description

technical field [0001] The invention relates to a mercerizing residual alkali neutralization device and an operating process thereof, belonging to the field of cloth dyeing and finishing. Background technique [0002] Mercerizing is a process in which the fabric is treated with a concentrated caustic soda solution under tension, and then washed to remove the caustic soda under tension. After the concentrated alkali treatment of the knitted fabric, the fabric should be washed and neutralized in time, otherwise the mercerized knitted fabric will have quality problems such as alkali spots and uneven dyeing in the subsequent dyeing and finishing process. In the prior art, the treatment of residual alkali after the mercerizing process includes two steps, namely water washing and neutralization. The water washing is to add hot water to the six washing tanks that come with the mercerizing machine, so that the cloth passes through the six hot water tanks in sequence; The neutraliza...

AI Technical Summary

Problems solved by technology

Under the existing technology, the neutralization process consumes a lot of electricity and water, which is not conducive to energy saving and emission reduction, and the process is complicated and the production efficiency is low

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