Essential Laundry Knowledge for Laundry Workers - Part 1

There are many knowledge aspects related to laundry that professional staff engaged in laundry services need to master as much as possible to improve the quality of work.

Reasons for Pre-wash

Some laundry shops or factories will directly operate the main wash section to keep up with the schedule during peak season. Once dry clothes absorb the water with detergents, the detergents will penetrate deep into the fibers. As a result, it is difficult to rinse the clothes thoroughly in the rinse cycle. After several such improper washings, clothes will turn gray, yellow, or even stiff because of the detergent residue.

By cold water pre-wash, the water can enter the fibers first, so that the detergents or wastewater will not penetrate into the fibers. The rinse will be simpler, and the washing quality can also be ensured.

There are also these purposes:

1. Prevent protein and tannin-based stains from binding more firmly to fibers due to heat.
2. Prevent colored fabrics from experiencing color fading, color bleeding, and other accidents due to heat. 

3. Prevent woolen or synthetic fiber fabrics from being washed in hot water for a long time to avoid damaging the fibers.

The Most Time-saving and Water-saving Way of Rinse

Rinse is a very important section. Multiple rinses take time and water, while insufficient rinsing may lead to detergent residue. Then, how to both save time and water? We suggest using less water each rinse, rinsing multiple times, and doing dehydration after each rinse to minimize the amount of chemicals remaining in the clothes after each rinse.

• If fully automatic equipment like the Kingstar industrial washing machineis used, there will be 5 options of water levels for people to choose from: high water level, medium-high water level, medium water level, medium-low water level, and low water level. People can set the water level during the rinse according to the loading capacity. The method of multiple rinses at a lower water level and multiple dehydration steps can not only clean thoroughly but also save washing water.

Problems to Note When Dehydrating Clothes

After being washed, clothes need to be dehydrated. What issues should be noted during the dehydrating process?

• If people choose Kingstarfully automatic industrial washing machines, the machines can automatically finish the dehydration. The machines have detailed dehydration parameters that can be set according to the condition of the clothes, which can protect the clothes while reducing the moisture content.
• However, there are often some clothes that need to be processed manually and then dehydrated separately. What should be noted when dehydrating such clothes? Due to the relatively small amount of clothes washed by hand, the strong centrifugal force may cause the clothes to tear. Therefore, when dehydrating these clothes, the following two points should be noted:

1. Since the amount of clothes washed by hand is relatively small, the strong centrifugal force may cause the clothes to tear. Therefore, when dehydrating these clothes, the following two points should be noted:
2. Arrange the clothes in strips in sequence along the edge of the inner drum. Do not place the clothes in the center of the inner bucket. If there are too few clothes, you can use other clothes as counterweights and place them together.
3. If the clothes are made of silk, knitted, or have many decorations, they can be wrapped in a large towel and then spun dry in a bucket.

What other knowledge do laundry workers need to master in their daily laundry service work? We will continue to share it with you later.