Braid dyeing method referring to dip dyeing process

Abstract

The invention relates to the technical field of dyeing, and provides a braid dyeing method referring to a dip dyeing process. According to the method, the process is simple, the permeability of a dyeing liquid in braids and the dyeing effect are good, and the yield is high. The braid dyeing method comprises the steps as follows: 1), dye dilution: dye used for the dyeing process is diluted for 10 times; 2), the dye prepared in the step 1) is placed in a coloring box, a cross bar used for suspending the braids is arranged in the coloring box, the water level of the coloring box is adjusted, the liquid soaks rolling shafts at the lower part of the coloring box, then 1-1.5 g / L of a levelling agent and 1-1.5 g / L of a penetrating agent are added in the coloring box, the braids are uniformly hung on the cross bar and connected with the rolling shafts at the lower part of the coloring box; the temperature of the coloring box is controlled to be 98-102 DEG C; and a switch is switched on, so that the braids in the coloring box are dyed.

Description

technical field [0001] The invention relates to the technical field of dyeing, in particular to a ribbon dyeing method referring to an exhaust dyeing process. Background technique [0002] At present, there are roughly three dyeing processes in the printing and dyeing industry: pad-drying pad-steaming dyeing process, wet short-steaming dyeing process and pad-steaming dyeing process. Among them: the pad-drying-pad-steaming dyeing process, the steps of which are: sending the webbing into a uniform pad car for padding dyeing solution, and then sending the webbing after padding into a drying machine for drying—usually after drying The water content of the webbing is 8%, and then the dried webbing is sent to the soaking pad car to pad the color-fixing agent, and then the webbing after padding the color-fixing agent is sent to the color-fixing steam box and heated at 100±2°C. Saturated steam is used to steam and fix the color, and then the webbing after steaming and color fixing...

AI Technical Summary

Problems solved by technology

Among the three dyeing processes, the pad-dry-pad-steam dyeing process is a traditional dyeing process, which is the most used at present, and its biggest feature is its stability and reliability. However, this process is relatively long and the space occupied by the equipment is relatively large. Large, energy and water consumption is more, the utilization rate of dyestuffs, that is, the color yield of webbing is low, generally 60-70%, the lost dyestuffs not only pollute the environment, but also increase the production cost; wet short steam dyeing The energy consumption of the process is relatively low, but it is difficult to be selective for dyes and color-fixing agents, especially the conditions for ribbon reaction and color fixation (temperature between 125-130°C and relative humidity between 25-30%) Stable control, this kind of equipment can only rely on imports at present, not only to achieve a constant temperature, but also to maintain a constant relative humidity, this kind of process conditions are very harsh, making it difficult to guarantee the dyeing quality; pad steam dyeing is a kind of The emerging dyeing process has been recognized by people in the industry for its lower energy consumption and shorter process flow, but the fly in the ointment is that the utilization rate of dyes and the color yield of ribbons are low, generally only reaching 55-65%. Like the traditional pad-dry-pad-steam dyeing process, the lost dye not only pollutes the environment, but also increases production costs

[0003] The above three traditional dyeing processes all adopt the dip dyeing method, which has the advantages of good penetration and good fastness, but has the disadvantages of complicated procedures and low output.

In addition, the commonly used dyeing method in the prior art also has the advantages of hanging dyeing, which has the advantages of high output and simple process, but the disadvantage is that the penetration is poor and the fastness of the webbing is low.

In view of this, when hang dyeing produces some thicker belts, it is often only colored on the surface, and the fibers in the middle of the belt are basically not colored. Cut the ribbon with scissors. Most of the cross-section of the ribbon is white. The webbing made by dyeing technology is not beautiful and cannot meet the needs of consumers

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