When adding compound capable of absorbing free morpholinyl group in sizingmaterial, the content of toxic morpholinyl nitrite would be reduced 95%.
如果在胶料中配加能吸收游离吗啉基的化学品，可以将其可能产生的毒性吗啉亚硝酸盐降低95%。
2
Looking for a new sizingmaterial that substitutes PVA has become our common understanding, because PVA causes serious pollution and destruction to environment.
由于PV A对环境造成严重的污染和破坏，寻找一种新的浆料来替代PVA已经成为大家的共识。
3
Because of the big density and weaving difficulty for the cotton waterproof eider down clothing, the general sizingmaterial can not meet its sizing requirement.