The Graphics Dyeing Study Of Multi-component Fabric In Supercritical CO₂

With the single composition fabric dyeing as a basis,the graphics staining of multi-component fabric in supercritical CO₂ is that using the nontarget content,the target textiles were been sewed,twisted and strapped,then dyed in supercritical CO₂.According to the differences physical properties,dyeing and finishing performance of different fabric,the technological parameters that are graphics dyeing parameters of multi-component fabric in supercritical CO₂ was be analyzed and optimized,to achieve repetitive production.For multi-component fabric have many varieties,so modal blended fabric,tencel blended fabric was studied in the paper.In this paper,the dyeing pattern was designed and the appropriate materials and tools as anti-dyeing thing were selected.Explore different ways and means to tied dyeing fabric in designed pattern.In the Papers from the principle of thermodynamics,kinetic to analyzed the graphics dyeing mechanism of two-component fabric in supercritical CO₂.Supercritical CO₂ graphics dyeing is divided into color graphics dyeing as well as monochrome graphics dyeing.Monochrome graphics dyeing use the principle of anti-dyeing.The color graphics dyeing use the differences of the dye diffusion properties as well as the capillary effect.Anti-dyeing effects mainly depend on temperature and pressure of carbon dioxide dyeing,tied intensity and so on.Dye diffusion rate in Color graphics dyeing process determined by the micro-gap size of the molecular structure,tied mouth,and the fiber itself.The micro-gap size is small or dye molecules are large,it is easy to form mechanical obstacles of the proliferation.So the probability that Dye molecules through the micro-gap are relatively low,diffusion is relatively slow.Small dye molecules and big micro-gap are conducive to the diffusion of the dye molecules.Those who increased the size of micro-gap?swelling,heating?are conducive to the spread of dye,These factors will be further studied in this article.