摘要：【中文】本发明公开了一种合成革用水性高透明性聚氨酯染料树脂及其制备方法，所述合成革用水性高透明性聚氨酯染料树脂，是采用包括如下质量百分比的组分制备的：聚酯多元醇6‑15%，聚醚多元醇0‑7%，着色多元醇1.5‑3.5%，二异氰酸酯7‑10%，亲水扩链剂0.5‑2%，小分子扩链剂1‑2%，中和剂0.5‑1.5%，催化剂0.01‑0.02%，丙酮稀释剂15‑25%，小分子二元胺0.2‑0.5%，水45‑55%。本发明制备的合成革用水性高透明性聚氨酯染料树脂，实现树脂着色的同时，避免了树脂的颜色迁移浮色问题，具有优异的常低温耐折性能，且成膜过程中不会排放溶剂，环保节能。 【EN】The invention discloses a waterborne high-transparency polyurethane dye resin for synthetic leather and a preparation method thereof, wherein the waterborne high-transparency polyurethane dye resin for synthetic leather is prepared from the following components in percentage by mass: 6-15% of polyester polyol, 0-7% of polyether polyol, 1.5-3.5% of coloring polyol, 7-10% of diisocyanate, 0.5-2% of hydrophilic chain extender, 1-2% of micromolecular chain extender, 0.5-1.5% of neutralizer, 0.01-0.02% of catalyst, 15-25% of acetone diluent, 0.2-0.5% of micromolecular diamine and 45-55% of water. The waterborne high-transparency polyurethane dye resin for synthetic leather, prepared by the invention, can realize resin coloring, simultaneously avoid the problem of color migration and color floating of the resin, has excellent folding resistance at normal and low temperature, does not discharge solvent in the film forming process, and is environment-friendly and energy-saving.