There are two main methods of fabric printing and dyeing: one is traditional paint printing and dyeing, and the other is reactive printing and dyeing, which is opposite to paint printing and dyeing. How to distinguish between the two?
Reactive printing and dyeing is the process of dyeing and printing In the process, the active gene of the dye is combined with the fiber molecules, making the dye and fiber form a whole. The fabric has excellent dust-proof performance, high cleanliness and high color fastness. Of course, the cost is much higher than that of pigment printing and dyeing. No azo and formaldehyde are added during the printing and dyeing process, it does not contain substances harmful to the human body, and it does not fade or shrink when washed.
The difference between reactive printing and dyeing and paint printing and dyeing is that the hand feeling of reactive printing and dyeing is smooth and soft. A common saying is that the fabric of reactive printing and dyeing looks like mercerized cotton. Look at the printing and dyeing from both positive and negative aspects. The effects are very good; while the paint-dyed fabric feels stiff and looks a bit like an ink painting.
Characteristics of paint printing and dyeing
Process Simple and low cost. The color fastness is poor, and it will get old after washing; the environmental performance is poor, and the formaldehyde content is higher than that of reactive printing and dyeing; the printed part is sticky, and it appears hard without adding softener. If softener is added, the formaldehyde content will be higher.
Characteristics of reactive printing and dyeing
Good air permeability and excellent fastness , soft to the touch, but there are also problems such as cumbersome printing process, long process and difficult processing. Generally, reactive printing and dyeing can ensure that it is environmentally friendly and harmless to people. The color and fabric feel are also better, and there is no hard or soft feeling.
How to distinguish reactive printing and dyeing from paint printing and dyeing?
Knowing colors
The colors of paint printing are not bright and dim, giving people the feeling that the colors are floating on the cloth. . It’s like a coat of paint on the wall.
Look at the gloss
Pigment printed fabrics have been ” “Calendering” process, so you see a shiny feeling on the cloth, which may be paint printing. This smoothness obtained through calendering is one-time and will disappear after washing.
Smell
Dig printing adds a lot of adhesive. It is shaped directly without being washed, so the finished fabric will have a strong smell.
Feel to the touch
Pigment printing feels hard, and fabric manufacturers want to cover it up This shortcoming is that softener is added during styling, and the finished product will feel softer after being “calendered”, and most of it will fall off after washing. </p
