Reactive dye wet short steaming clean pad dyeing process for cotton/chinlon/lyocell fabric

Abstract

The invention relates to the technical field of textile dyeing and finishing, in particular to a cotton / chinlon / lyocell fabric reactive dye wet short steaming clean pad dyeing process which comprises the following steps: (1) preparing dye liquor by adopting M-type reactive dye, and adjusting the pH value of the dye liquor to be acidic; (2) padding and padding in dye liquor: performing two-time padding and two-time padding, wherein the liquor detention rate is 71-93%; (3) steaming; (4) padding in alkaline color fixing liquid: dipping twice and rolling twice, wherein the liquor detention rate is 20-28%; (5) steaming; (6) washing with cold water; (7) washing with hot water; (8) soaping; (9) washing with hot water; (10) washing with cold water; the dyeing process of the cotton / chinlon / lyocell three-component fabric can be shortened, migration and time consumption are reduced, cost and chemical consumption are reduced, energy consumption is reduced, pollution is reduced, energy consumption and carbon emission are reduced, and the fabric is good in dye permeability and leveling property and high in color yield and color fastness.

Description

technical field [0001] The invention relates to the technical field of textile dyeing and finishing, in particular to the wet short steam cleaning pad dyeing and dyeing process of cotton / nylon / lyocell fabric reactive dyes. Background technique [0002] Lyocell: commonly known as "Tencel", it uses natural plant fibers as raw materials. Lyocell is a green fiber. Lyocell has a variety of excellent properties of natural fibers and synthetic fibers. Its raw materials are inexhaustible in nature. Inexhaustible cellulose, the production process has no chemical reaction, the solvent used is non-toxic, the waste is biodegradable, and the production process is simple, which can save oil resources and meet environmental protection requirements. [0003] Both cotton and lyocell fibers are cellulose fibers, while nylon is a synthetic fiber with poor hydrophilicity but high strength. [0004] Blended yarn: refers to a single yarn that is blended with two or more different types of fibers...

AI Technical Summary

Problems solved by technology

However, intermediate drying also brings many problems: firstly, it consumes energy, and evaporation of water consumes a lot of heat energy when drying wet fabrics; secondly, dyes are prone to swimming during drying, resulting in color difference and reduced color fastness, and dyeing reproducibility In addition, drying after padding the dyeing solution not only increases a processing procedure, which is inconvenient to manage, but also when the dry fabric is steamed, the dyes and chemicals will absorb water to dissolve again, and the dry fabric will release moisture when it absorbs moisture. Heat produces overheating, which is unfavorable to dyeing and color fixation

Due to different fiber fixation conditions, two-phase dyeing is required. The traditional two-phase exhaust dyeing process is padding dyeing solution-drying-steaming-drying-pad alkaline fixing solution-steaming-cold water washing-hot water washing-soaping- Hot water washing-cold water washing-drying, drying after dipping the dyeing solution can reduce the hydrolysis of the dye on the fabric, but there is migration, and the process is increased, consuming a lot of energy and the color yield of nylon is not high

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