Acid dye dispersions
    2.
    发明授权
    Acid dye dispersions 失效
    酸性染料分散体

    公开(公告)号:US4468230A

    公开(公告)日:1984-08-28

    申请号:US478953

    申请日:1983-03-25

    IPC分类号: C09B67/26 C09B67/40

    CPC分类号: C09B67/0073 Y10S8/929

    摘要: The present disclosure is concerned with aqueous dispersions of anionic acid dyes, especially the monosulphonated level dyeing acid dyes, which have low room temperature, low shear viscosities and good storage stability. This low viscosity enables them to be readily poured, pumped and otherwise handled. These dispersions comprise dyestuff solids with a controlled particle size distribution having a median value between about 1 and 10 microns; an anionic dispersant; and an electrolyte. In a preferred embodiment the pH is adjusted to give an optimum viscosity value. Another preferred feature is the adjustment of the rheology with a thickening agent such as xanthan gum. These dispersions find particular utility in the continuous dyeing of carpet, especially in Kuesters or foam dyeing equipment.

    摘要翻译: 本公开涉及阴离子酸性染料,特别是单磺酸化染色酸性染料的水分散体,其具有低室温,低剪切粘度和良好的储存稳定性。 这种低粘度使其能够容易地倾倒,泵送和以其他方式处理。 这些分散体包含具有约1至10微米中值的受控粒度分布的染料固体; 阴离子分散剂; 和电解质。 在优选的实施方案中,调节pH以得到最佳粘度值。 另一个优选的特征是用增稠剂如黄原胶调节流变性。 这些分散体特别适用于地毯的连续染色,特别是在Kuesters或泡沫染色设备中。