Have you ever been attracted by the brand-new white bed sheets, soft towels and neat tablecloths when you checked into a hotel? Why do the hotel linens in hotels always maintain such a perfect white color, while the white fabrics at home tend to turn yellow and age easily? Today, let's uncover together the secret behind the hotel  linens being as bright and white as new.

一. Why do most hotel linens choose white?

In hotel rooms, white hotel linens is the most common choice. This is not only because white is simple and elegant, but also because it has a unique visual advantage. White hotel linens can create a clean, bright, soft and elegant atmosphere, making guests feel comfortable and tidy as soon as they enter the room. This visual effect is crucial for enhancing the overall image of the hotel.

However, the maintenance of white hotel linens is not easy. If only the ordinary washing method is relied upon, the hotel linens is very likely to show yellow or brown marks. This is because the fabric itself absorbs the blue light in natural light. To keep the hotel linens  bright and white as new, hoteliers must master some special skills.

二. The purpose of bleaching: It is not merely to remove dirt

Bleaching is an indispensable step in the washing process of hotel linens. The main purposes of bleaching are twofold: one is to remove the residual dirt on the fabric and restore it to its original color; Second, enhance the whiteness and brightness of white fabrics to make them look brighter and more vivid.

During the washing process, after steps such as rinsing, pre-washing and main washing, most water-soluble dirt, oil-soluble dirt and solid dirt can be removed. However, for some pigment-based dirt, regular washing cannot completely remove it. These dirt can only be removed through oxidation or reduction, and the bleaching process is precisely the key step to achieve this goal.

三. Bleaching Time: Precise control is the key

The control of time is of vital importance during the bleaching process. The release time of the bleaching agent directly affects the bleaching effect. Under the ideal bleaching temperature and the pH value of the washing solution (10.5), the bleaching agent can basically dissolve uniformly in the washing solution within one minute after being added, and the available chlorine begins to be released uniformly. At 6 to 8 minutes, the chlorine is basically released, and at this point, the effective chlorine concentration in the solution is approximately 10ppm. When draining, the content of available chlorine should be less than 10ppm. If the bleaching time is further extended after the effective chlorine has been fully released, the bleaching effect will not be further enhanced; instead, it may cause damage to the fabric.

四. Bleaching Temperature: The Subtle Influence of Temperature

During the bleaching process, temperature has a significant impact on the bleaching effect. Different bleaches have different requirements for temperature. For chlorine bleaching agents, the bleaching temperature is generally selected below 65 ℃. If the temperature is too high, it will cause the fabric to become dirty and yellow and reduce its fastness. As for oxygen bleaching agents, the bleaching temperature can be raised to 70 ℃ -90℃, which can better exert the bleaching effect of oxygen bleaching agents.

Generally speaking, for every 10℃ increase in the bleaching temperature, the bleaching speed can be halved. Therefore, in actual operation, hotel staff will reasonably select the bleaching temperature based on the type of bleaching agent used and the characteristics of the fabric to achieve the best bleaching effect.

五. pH Value of Bleaching Bath: The Importance of Balancing Acidity and Alkalinity

The pH value of the bleaching bath has a significant impact on the fastness and bleaching effect of the fabric. When the pH value of the float bath is neutral 7, it causes greater damage to the fabric. Under acidic conditions, although the bleaching speed is faster, the damage to the fibers is also more severe. Therefore, it is not recommended to use it.

When using chlorine bleach, the optimal pH value for the bleach bath is 10.2-10.5. At this pH level, the bleaching speed is moderate and causes less damage to the fibers. Hotel staff usually carry out the main wash and bleaching design at the same stage, which can not only maintain an appropriate pH value but also achieve an ideal bleaching effect.

六. Tips for Keeping hotel linens Bright White and as good as new

In addition to the above-mentioned bleaching techniques, hotel staff will also regularly whiten the hotel linens. This treatment not only enhances the whiteness of the hotel linens but also makes it look brighter. Through scientific washing methods and reasonable bleaching procedures, the  hotel linens  can always remain as white as new, providing guests with a comfortable and clean stay experience.

The bright white of hotel  linens is no accident; it is achieved by hotel staff through scientific washing methods and strict bleaching procedures. From choosing the right bleaching agent to precisely controlling the bleaching time, temperature and pH value, every detail determines the final effect of the hotel linens. If you also want to keep the white fabrics at home as white as new, you might as well draw on these small tips from hotels to make the white fabrics in your life shine with new luster.

The next time you check into a hotel and see those hotel linens as white as new, you will understand that behind this lies the hotel staff's persistent pursuit of details and strict control over quality.