The invention discloses a preparation method and application of novel defoaming agent, and belongs to the technical field of
dyeing auxiliary agent application. The preparation method comprises the steps: a first step, making the
raw material composition comprising celery leaves, sugarcane rind,
bitter gourd,
ginkgo leaves, mulberry leaves, fleece-flower root leaves and fig leaves ready, wherein the addition amount is calculated on dry substance weight; a second step, preparing a water extract concentrate; a third step, preparing an
ethanol extract concentrate; and a fourth step, mixing the concentrates, adding
sodium chloride and bean flour, and mixing evenly to obtain the novel defoaming agent. The defoaming agent takes
plant extract flavonoids as main effective ingredients, has the advantages of simple
processing and preparation method, green
environmental protection, and no
pollution, meets
sustainable development social requirements, is applied in
textile slurry, has the addition amount 0.1-0.5% of the weight of the
textile slurry, has the advantages of good defoaming effect, strong defoaming ability, less amount, stable chemical properties, good
heat resistance and
oxidation resistance, and extremely high ecological benefits and
economic benefits.