洗涤酒店布草是一件细心活，在正确使用洗涤化料的同时，其次就是洗涤工艺，布草水洗全过程应包括检查分类、去渍处理、预洗、主洗、漂洗、投水、脱水、过酸中和、柔软处理、上浆、烘干、熨平等工艺操作内容。然而，织物的用途不同，质料不同，脏污状况不同，布草水洗主要工艺和操作内容也应有所区别。

Washing hotel linen is a meticulous task. While using washing chemicals correctly, the next step is the washing process. The entire process of linen washing should include inspection and classification, stain removal, pre washing, main washing, rinsing, water addition, dehydration, acid neutralization, softening treatment, sizing, drying, ironing, and other process operations. However, due to the different uses, materials, and dirt conditions of fabrics, the main process and operation content of fabric washing should also be different.

大部分宾馆、饭店的客房部使用的布草以白色为主，所以对白度十分重视。如果只采用漂白，只能获得一定的白度。但仔细观察，你会发现还有浅黄色或褐色，这主要是织物本身对自然光线中的兰色光有微量的吸收。因此要使织物的白色达到一个理想的状态，可定期定量对布草实施增白。那么，白色布草怎么亮白如新呢？下面来介绍两种方法。

Most hotels and hotel rooms use white linen as the main fabric, so whiteness is highly valued. If only bleaching is used, only a certain degree of whiteness can be obtained. But upon careful observation, you will find that there is also a light yellow or brown color, which is mainly due to the fabric's slight absorption of blue light in natural light. Therefore, to achieve an ideal white state of the fabric, regular and quantitative whitening of the fabric can be carried out. So, how can white linen shine as white as new? Here are two methods to introduce.

1加兰增白

1 Galan Whitening

进行加兰处理时，应根据不同织物选用不同染料，以求达到最佳效果。在学染整学中，有一个互补色，而恰怡黄色和兰色是互补色。当这二种颜色混合时，可以给人以白的感觉，因为白色织物上带有一定的黄色和褐色，加上一定量的兰色，调补白色织物上的黄色，使之显现白色。利用了色彩互补原理，利用一些兰色或兰紫色的分散染料，使其均匀吸附在白色织物上以去除织物上的黄色或褐色，这就是加兰增白的原理。

When carrying out Galan treatment, different dyes should be selected according to different fabrics to achieve the best effect. In dyeing and finishing, there is a complementary color, and Chayi yellow and blue are complementary colors. When these two colors are mixed, they can give people a feeling of white, because the white fabric has a certain amount of yellow and brown, plus a certain amount of blue, to complement the yellow on the white fabric and make it appear white. By utilizing the principle of color complementarity, some dispersed blue or purple dyes are uniformly adsorbed on white fabrics to remove yellow or brown from the fabric. This is the principle of adding blue to enhance whiteness.

a分散兰染料:可用于涤棉混纺，用量为005克/升，时间五分钟温度40℃。在进行增白前，应先将染料用水充分溶解，然后中水位使用。经过这样处理后的白色织物外观相对美观。

Disperse blue dye: can be used for polyester cotton blending, with a dosage of 005 g/L and a time of five minutes at a temperature of 40 ℃. Before whitening, the dye should be fully dissolved in water and then used at medium water level. The white fabric treated in this way has a relatively beautiful appearance.

b.直接耐晒兰:可用于纤维素纤维织物，一般建议用量0.006克-0.003克/升，时间五分钟。

b. Direct sun resistant blue: can be used for cellulose fiber fabrics, with a recommended dosage of 0.006 grams to 0.003 grams per liter and a duration of five minutes.

2荧光剂增白

2. Fluorescent agent whitening

荧光增白是将不可见的紫外线转变为蓝色或紫色的可见光，增加了织物的白度与反射率，给人一种洁净感觉。它是一种涂料，与纤维有较好的亲和力，因此增白效果较好。直接性荧光境白剂（VBL）主要用于纤维素纤维，也可用于维纶、锦纶等白色织物的，以及其浅色或印花织物的增白，分散性荧光增白剂，主要用于取酯纤维的白色织物增白，酸性荧光增白剂主要用于羊毛、锦纶、醋酸纤维、腈纶、涤纶的白色织物增白。

Fluorescent whitening is the process of converting invisible ultraviolet rays into visible blue or purple light, increasing the whiteness and reflectivity of the fabric, giving a clean feeling. It is a coating that has a good affinity with fibers, therefore it has a better whitening effect. Direct fluorescent whitening agent (VBL) is mainly used for cellulose fibers, as well as for white fabrics such as vinylon and nylon, as well as for whitening light or printed fabrics. Dispersive fluorescent whitening agent is mainly used for whitening white fabrics made of ester fibers, while acidic fluorescent whitening agent is mainly used for whitening white fabrics made of wool, nylon, acetate fibers, acrylic, and polyester.

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