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【Origin Pic】

Product Introduction

Direct dyes refer to dyes that can be directly dissolved in water and have high directness to cellulose fibers. They are used for dyeing cotton, linen, rayon, and rayon, with complete chromatography, low price, and easy operation. The disadvantage is that the washing and sun fastness are not ideal

Application Scope

Environmentally friendly direct dyes are applied to the dyeing of various textiles, depending on the type and morphology of the fibers. Both loose fiber and yarn dyeing are processed by immersion dyeing, and fabric dyeing is mostly produced by roll dyeing and pad dyeing

Environmentally friendly direct dyes

Usage method

Dip dyeing is a method of immersing a dye in a dye solution and gradually absorbing the dye into the fibers through a certain dyeing process to achieve the dyeing goal. The specific operation is as follows:

1. Dip dyeing of cotton hank yarn

The use of environmentally friendly direct dyes for dyeing cotton hank yarn has gradually decreased since the application of dyes with good dyeing fastness, such as reduction, insoluble azo, and sulfide. However, certain colors (such as black) still maintain the advantages of environmentally friendly direct dyes. In addition, due to the low requirements for color fastness of certain dyeing products, and the simpler dyeing method of environmentally friendly direct dyes, the cost becomes lower. Therefore, in some cases, environmentally friendly direct dyes are also used for yarn soaking

2. Dip dyeing of viscose strands

Process flow: yarn preparation → dyeing → washing → dehydration → fixation → oiling → dehydration → drying

3. Dipping and dyeing of mulberry twisted silk

Process flow: skein refining → water washing → dyeing → water washing → dehydration → fixation → water washing → oiling → dehydration → drying

4. Dip dyeing of cotton knitted fabrics

Process flow: grey fabric preparation → dyeing → water washing → paraffin treatment → dehydration → drying

5. Dip dyeing of wool and viscose blended fabrics

There are two methods for dyeing wool viscose blended fabrics with environmentally friendly direct dyes. One is to use dyes that can dye wool and viscose to the same color. Another method is to use environmentally friendly direct dyes to dye the wool fabric with viscose, leaving the wool white; Alternatively, wool can be dyed with acidic dyes first, followed by eco-friendly direct dyes to achieve a dual color effect

Packaging and storage

1.50kg/barrel, lined with plastic bags for packaging

2. Store tightly at room temperature