A kind of waxy printing and dyeing method of reactive dyes and low-feeding liquid padding machine

Abstract

The invention discloses a wax printing and dyeing method of reactive dyes and a low-feeding liquid padding machine, which belong to the field of batik printing. The method includes processes such as dyeing→drying→low-supply liquid surface padding and color fixing→stacking, wherein no alkali agent is added to the dyeing solution; Depth; stacking time is not more than 60min. The low feed liquid padding car is mainly composed of the first traction roller, the second traction roller, the first liquid supply control roller, the second liquid supply control roller and the liquid supply pipe. The two traction rollers are arranged in parallel and rolled together The liquid supply pipe is arranged in parallel above the first traction roller and the second traction roller; the first liquid supply volume control roll is rolled together with the first traction roll; the second liquid supply volume control roll is rolled together with the second traction roll. Compared with the prior art, the printing and dyeing method of the present invention has the characteristics of good dyeing effect and high safety, and the padding car has the characteristics of simple structure and can realize low liquid supply operation, etc., and has good popularization and application value.

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 ...

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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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