Preparation and application method of easy-separated microemulsion for paint dyeing

Abstract

The invention discloses preparation and an application method of separable micro latex for pigment dyeing, and belongs to the technical field of textile dyeing and finishing. The preparation method comprises the following steps: (1) dissolving chitosan in a dilute acetic acid solution, and adding coconut oil amine polyoxyethylene ether with the ethylene oxide number being 5; (2) mixing butyl acrylate with styrene according to a proportion, and adding a certain amount of cetane; (3) adding the mixture into a chitosan and coconut oil amine polyoxyethylene ether-dissolved solution according to a proportion, and carrying out ultrasonic emulsification; (4) adding a certain amount of potassium persulfate into the emulsified mixed solution, and carrying out heat preservation treatment; (5) preparing a micro latex treating fluid with a certain concentration, and after conventional pigment dyeing, putting cotton fabric into the treating fluid for treatment; (6) after color fixing, taking the cotton fabric out of the treating fluid, regulating the raffinate pH to 8, rising the temperature to 90 DEG C, and keeping the temperature for 10 min. The micro latex prepared from the preparation method is good in color fixing effect for pigment particles, and can be easily separated from raffinate after application, and the harm to the water environment is reduced.

Description

technical field [0001] The invention relates to a preparation and application method of easy-separated micro-emulsion, in particular to a preparation and application method of easily-separated micro-emulsion for paint dyeing, and belongs to the technical field of textile printing and dyeing. Background technique [0002] The paint dyeing method has the advantages of simple process, energy saving, short process and high light fastness. In addition, it also has a unique style, such as obvious washing feeling and layered three-dimensional effect, so it is widely used by printing and dyeing enterprises. The particle size of the paint particles is relatively large and cannot enter the interior of the fiber. It can only be discontinuously distributed and deposited on the surface of the fiber in the form of isolated islands. It needs to be adhered to the surface of the fiber by means of an adhesive to form the necessary color fastness. Adhesives for paint dyeing are generally latex...

AI Technical Summary

Problems solved by technology

The surface of the adhesive microemulsion particles is generally negatively charged. When used on cotton fabrics dyed by paint, the paint particles are generally negatively charged, and there is an electrostatic repulsion between the two, so that only part of the microemulsion particles can be adsorbed, and the rest of the latex particles will be absorbed. The particles still exist in the treatment liquid, and it is difficult to effectively separate them from the water body. After the treatment is completed, they are generally discharged together with the waste liquid, causing certain pollution