Pressure type dyeing method for textile fabric

Abstract

The invention discloses a pressure type dyeing method for a textile fabric, and belongs to the field of dyeing. According to the pressure type dyeing method for the textile fabric, a breathing pressure ball is arranged; breathing type air inflation and air exhaust processes are continuously repeated for enabling the breathing pressure ball to continuously shrink; in the process, during air inflation, an inner air hole bag expands, a force guide rod is pushed to move outwards, and thrust is generated on an outer outlet arrow layer, so that the outer outlet arrow layer is expanded, a gap between the outer outlet arrow layer and the inner air hole bag is accelerated to be filled with dyeing liquid; during air exhaust, the inner air hole bag rapidly shrinks, the force guide rod enables the outer outlet arrow layer to be subjected to inward pulling force, then the dyeing liquid in the gap is extruded to rapidly overflow, and a plurality of strands of water arrows with impact pressure are formed, so that the dyeing liquid is enabled to generate certain fluctuation, the fluidity of the dyeing liquid around the fabric is improved, and the diffusion of dye molecules to the fabric is accelerated; and compared with the prior art, the method has the advantages that the dyeing time is remarkably shortened and the dyeing efficiency is improved.

Description

technical field [0001] The invention relates to the field of dyeing, in particular to a pressure dyeing method for textile fabrics. Background technique [0002] For fabric dyeing, water-soluble dyes are generally used. Water-soluble dyes are ionic dyes. Weak, form hydrated ions or hydrated molecules with water and dissolve to form an aqueous solution of dyes, such as direct, acidic, reactive, cationic and vat dyes and leuco dyes of sulfur dyes; the solubility is related to the type of dye, temperature, pH value of the dye solution, etc. Due to the hydrogen bond of the hydrophobic part between the dye molecules and the van der Waals force, the dyes aggregate to different degrees, and the aggregation tendency is related to the molecular structure of the dye, temperature, electrolyte, dye concentration, etc. The molecular structure of the dye is complex and the molecular weight Large, homoplanar conjugated system, easy to aggregate, low temperature, large aggregation tendency...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in the dyeing process, the fabric to be dyed is usually immersed in the dyeing solution, and the process of coloring the fabric is realized through the diffusion of the liquid dye in the fabric. However, the dye spontaneously flows into the fabric. Diffusion is a relatively slow process, which results in a longer dyeing time in the prior art, which affects its lower dyeing efficiency

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