Presoak detergent with optical brightener
    3.
    发明授权
    Presoak detergent with optical brightener 失效
    预调洗涤剂与荧光增白剂

    公开(公告)号:US6099589A

    公开(公告)日:2000-08-08

    申请号:US695

    申请日:1997-12-30

    CPC classification number: C11D11/0064 C11D11/0017 C11D3/42

    Abstract: In fabric laundry procedures, commercial and household laundry detergent compositions commonly contain an optical brightener composition. Brighteners adjust the optical properties of the fabric in such a way that the fabric appears to be white even after repeated washings. Often white fabrics can yellow during use. Fluorescent optical brighteners having an optical blue aspect, mask the yellowing of the fabric. Common laundry detergents fail to have sufficient brightening capacity to brighten heavily soiled white cotton items used in household, commercial, institutional or fast-food food surface. A process for improving the whiteness of soiled white cotton, preferably terry cloth, items involves contacting the soiled white fabric item with a presoak containing an effective proportion of a fluorescent optical brightener composition, removing the item from the presoak and separating the presoak composition from the fabric item producing an extracted item. The extracted item is then laundered in a laundry detergent composition containing a brightener. The resulting white fabric items have substantially improved whiteness when compared to similarly soiled items laundered in conventional processes.

    Abstract translation: 在织物洗涤程序中,商业和家庭洗衣洗涤剂组合物通常含有荧光增白剂组合物。 增白剂以这样的方式调节织物的光学性能,使得即使在反复洗涤之后织物看起来也是白色的。 白色织物通常在使用过程中变黄。 具有光学蓝色方面的荧光增白剂掩盖了织物变黄。 常见的洗衣洗涤剂不能具有足够的增亮能力来使家庭,商业,机构或快餐食品表面中使用的严重污染的白色棉花物品变亮。 改善污染的白棉,优选毛圈布的物品的白度的方法包括将污染的白色织物项目与含有有效比例的荧光荧光增白剂组合物的预浸渍物接触,从预浸泡中除去该物品并将预浸涂组合物与 生产提取物品的织物物品。 然后将提取的物品在含有增白剂的衣物洗涤剂组合物中洗涤。 与常规方法中洗涤的类似污染的物品相比,所得到的白色织物物品具有显着改善的白度。

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