Reactive dye band wax dyeing method and low liquid supply padder

Abstract

The invention discloses a reactive dye band wax dyeing method and a low liquid supply padder and belongs to the field of wax dyeing. The method comprises the processes of dyeing, drying, low liquid supply level rolling color fixation, stacking and the like, wherein an alkaline agent is not added in dyeing liquid, a strong base agent is added to color fixation liquid, and the depth of a main color is increased through rolling alkali color fixation, and the stacking time is not longer than 60 min. The low liquid supply padder is mainly composed of a first pull roller, a second pull roller, a first liquid supply amount control roller, a second liquid supply amount control roller and a liquid supply pipe. The two pull rollers are arranged in parallel and rolled and combined with each other. The liquid supply pipe is arranged above the first pull roller and the second pull roller in parallel. The first liquid supply amount control roller and the first pull roller are rolled and combined. The second liquid supply amount control roller and the second pull roller are rolled and combined. Compared with the prior art, the dying method has the advantages that the dying effect is good, and safety is high; the padder has the advantages of being simple in structure, capable of achieving low liquid supply operation and the like, and good application and popularization value is achieved.

Description

technical field [0001] The invention relates to the field of batik, in particular to a waxy printing and dyeing method of reactive dyes and a low-feeding liquid padding machine. Background technique [0002] At present, in the production of wax printing at home and abroad, the main color of wax printing generally adopts the Nafto dyeing process. Although the Nafto dyeing process has the characteristics of simple operation and full and bright color, it still has the following shortcomings: 1. The color is not complete, the fastness is poor, and the dye itself does not meet the international environmental protection requirements; During the preparation of the dye solution and the dyeing process, the presence of the alkali agent causes the hydrolysis of the dye, especially for dark colors. The amount of dye used is large, resulting in a greater degree of hydrolysis, and its main color cannot reach the depth of the main color required by wax printing. At the same time, because ...

AI Technical Summary

Problems solved by technology

Although the Nafto dyeing process has the characteristics of simple operation and full and bright color, it still has the following shortcomings: 1. The color is not complete, the fastness is poor, and the dye itself does not meet the international environmental protection requirements; During the preparation of the dye solution and the dyeing process, the presence of the alkali agent causes the hydrolysis of the dye, especially for dark colors. The amount of dye used is large, resulting in a greater degree of hydrolysis, and its main color cannot reach the depth of the main color required by wax printing. At the same time, because the color fixing time of the cold pad batch is too long (more than 8 hours), the waxed fabric will be stained, which will affect the wax sealing effect; 3. Use high-temperature steaming or steaming process to fix the color (102 ℃, alkaline condition ), the energy consumption is large, the production cost is high, and the "wax" on the waxed printed fabric will melt under the condition of high temperature steaming and color fixation, which will cause the equipment guide roller to be dipped in wax and cannot operate normally; 4. Use urea as dyeing aid The nitrogen content of the sewage is high, and the treatment cost is high

The non-contact spray disc low-feeding system has the disadvantages of low liquid-carrying rate and color-fixing rate; the nozzles of the foam finishing machine are prone to clogging with wax, resulting in uneven liquid feeding; although the Goerle low-feeding padding machine can It meets the technical requirements of low liquid supply, but it has the disadvantages of complex operation and difficult control, so it is difficult to be widely used in the field of wax printing

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