Quality issues in the pretreatment of textile fabric
Whiteness and poor hair efficiency problems The poor whiteness includes the impure of whiteness, uneven whiteness, and wool effect less than 200px within 30 minutes, which is related to the quality of knitted fabric, such as lower-grade cotton content prone to cause poor whiteness, and of course, the most important is the process formulation and selection of textile auxiliaries, here to introduce some processing attentions: (1) the amount of H2O2 and NaOH must be sufficient: H2O2 not only plays a role of bleaching in pretreatment of textile fabric , but also has the function of detoying (including the cottonseed shell), the H2O2 quantity is insufficient (including decompose too fast), the whiteness cannot be guaranteed. NaOH not only provides the base (pH) needed for H2O2 bleaching, but also works with the refined agent to maximize the clutter. The NaOH quantity is insufficient, and the miscellaneous is poor, and the wool effect cannot meet the requirements first. Of co...