white discharge

disperse black WF and black WS for high temperature dyeing and black-ground white discharge printing.

推荐了两组高温染色黑地拔白印花的三元色拼混染料分散黑WF和黑WS，通过对亚锡类和亚磺酸类还原剂的系统试验和比较，以及对拔自参数的分析，提出涤纶织物黑色深地于120℃并适当提高染料浓度染色，采用12％PS-14原糊50％、德古林20％、助拔剂WT8％、尿素2％拔白，即可获得深浓的黑地拔白印花，拔白度达73左右。

The Movement pull out the white flag and insert in the red flag in 1958, presented and launched by Chairman Mao himself, is the result of various integrating factors.

1958年的“拔白旗、插红旗”运动，是由毛泽东亲自提出和发动的。

It also finds out the relevant new flat mesh plate material and works out the improving method.

分析拔白印花花色受损及拔白花型胖花现象的原因 ,并找到了相应的新型平网制版材料、制定了改进办法。