The Difference and Use of Dust-free Cloth

In the semiconductor clean workshop, cleaning products or cleaning machines cannot be separated from a dust-free cloth.

Dust-free cloth, also known as dust-free wiping cloth, is made of 100% polyester fiber (polyester) or microfiber woven, soft surface, easy to wipe sensitive surfaces, friction without defibrination, with good water absorption and cleaning efficiency.

Classification of dust-free cloth:

1, according to the thickness of the fiber, it is divided into polyester fiber dust-free cloth, microfiber dust-free cloth, sub-microfiber dust-free cloth, imitation microfiber dust-free cloth and high-density dust-free cloth.

2, according to the purification level of the dust-free cloth, from high to low can be divided into ten dust-free cloth, hundred dust-free cloth, thousand dust-free cloth and ten thousand dust-free cloth

Class 10 dust-free cloth is the highest grade, suitable for demanding cleaning tasks, such as the semiconductor industry and optical instruments;

The 100-grade dust-free cloth is suitable for laboratories and medical equipment with high cleaning requirements;

Thousand-grade dust-free cloth is suitable for general cleaning tasks, such as offices and homes;

The 10,000 dust-free cloth is suitable for environments with relatively low cleanliness requirements, such as general industrial cleaning and household cleaning.

3. According to cutting technology, it is divided into cold cutting, laser edge sealing and ultrasonic edge sealing dust-free cloth.

Cold dust-free cloth is directly cut by electric scissors, this cutting method is easy to produce dandruff on the edge, and can not be cleaned after cutting, and a certain amount of cloth will be produced on the side during the wiping process.

The laser edge sealing is broken by the laser instant high temperature, the edge sealing is better not to produce dandruff phenomenon, and the cleaning treatment can be done after cutting, so that the product can reach a higher dust-free standard.

The disadvantage is that the edge will be slightly hard because it is broken, and there is generally no problem with the point of attention during the wiping process, and 75% of the market uses this edge sealing method.

Ultrasonic edge sealing is the vibration generated by the ultrasonic vibration part (vibrator) (to convert electrical energy into mechanical energy), through the HORN(welding head) transfer heat, through the cutting tool extrusion broken fabric cutting, this kind of edge sealing is the most perfect way of clean cloth cutting.

Laser edge sealing and ultrasonic edge sealing dust-free cloth effectively reduce edge hair loss, the best cleaning effect, but the price is high.

4, according to the size of the dust-free cloth: the conventional size of the dust-free cloth is usually 4 inches, 6 inches, 9 inches and 12 inches, other sizes can also be

1, one-way wiping effect is good ‌ : it is recommended to always follow the same direction when wiping, avoid repeated wiping back and forth, in order to improve the cleaning effect;

2. Avoid edge contact ‌ : When wiping, wrap the four sides of the dust-free cloth inside, avoid using the edge of the cloth to directly contact the surface of the wipe, to reduce the risk of contamination that may be caused by the edge. ‌ ‌

3. Timely seal the unused cloth ‌ : do not expose it to the air to maintain the clean performance of the cloth. ‌

About cleaning and recycling:

As long as the dust-free cloth is not damaged, it is reusable after correct cleaning, which not only reduces costs, but also improves efficiency.

The recycled dust-free cloth is recommended to reduce the use grade, such as the new dust-free cloth can be used to wipe the product, and the recycled one is used to wipe the equipment.

The cleaning of dust-free cloth has a certain degree of professionalism, and can not be washed casually.

1. Chemical reagents such as bleach cannot be used for cleaning, which will shorten the service life of the dust-free cloth.

2. After cleaning, rinse thoroughly with clean water.

3. Do not use softener, because softener will leave a film on the surface of the microfiber, which will seriously affect the wiping effect.

4. Neutral detergent should be used to clean with warm water.

5. Dry in the air or in the dryer, do not iron or sun.

6. Cleaning, drying and vacuum packing should be carried out in a clean room that is not lower than the cleanliness level of the use place.

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In the electronics, pharmaceutical, medical and other industries with high requirements for cleanliness, sub-ultra-fine dust-free cloth and ultra-fine dust-free cloth play a very key role as high-performance cleaning and wiping materials. Although the functions of the two are similar, there are significant differences in fiber structure, cleaning efficiency and application range. Next, let's delve into the characteristics of these two dust-free fabrics and provide you with accurate selection guidelines.

First, the significant difference between sub-ultrafine dust-free cloth and ultrafine dust-free cloth

(1) Material composition

The sub-ultrafine dust-free cloth selects 100% polyester fiber, and its fiber fineness is better than that of ordinary polyester dust-free cloth. In contrast, the ultra-fine dust-free cloth is composed of two materials, polyester and nylon, of which the proportion of nylon is usually in the 20%-30% range. This difference in material makes the ultrafine dust-free cloth completely different from the sub-ultrafine dust-free cloth in some performance.

(2) gram weight difference

From the perspective of gram weight, the sub-ultra-fine dust-free cloth is generally concentrated in the range of 100-140g, while the ultra-fine dust-free cloth is relatively heavy, between 160g-220g. The difference in weight is often closely related to their wiping strength, durability and other indicators.

(3) Price gap

Price is also an important differentiator. The price of ultrafine dust-free cloth is significantly higher than that of sub-ultrafine dust-free cloth. This price difference factor will become one of the key considerations in the selection of more stringent cost control application scenarios, after all, in some cases, sub-ultrafine dust-free cloth can meet the demand with a better cost-effective.

(4) Fields of application

In practical application scenarios, the two have different emphasis. When facing the task of precision instrument stain cleaning, or dealing with grease and handprints on equipment accessories, ultra-fine dust-free cloth with its more contact area with the surface, showing a better wiping effect, and its easy to scratch expensive precision instruments, so become the first choice. For those devices with strong scratch resistance themselves, or in the case of wiping operations with solvents, the subultrafine dust-free cloth can play a better role by virtue of its own characteristics and is more adaptable.

Second, practical suggestions for choosing dust-free cloth

(1) Comprehensive consideration of multiple factors

Both sub-ultrafine dust-free cloth and ultrafine dust-free cloth have unique advantages and adaptation scenarios. Therefore, when choosing, it is necessary to comprehensively apply many factors such as demand, cleanliness standards, cleaning object characteristics and cost budget. Only in this way can we select the dust-free cloth products that best meet the needs of actual operations.

(2) Pay attention to gram weight and cleanliness standards

The gram weight and cleanliness of the product are directly related to the effectiveness of the cleaning operation. If the weight is not up to standard, it may lead to insufficient wiping strength or poor durability; If the cleanliness does not meet the requirements, the cleaning effect will inevitably be greatly reduced, and in serious cases, it will even cause defects in product quality, affecting the smooth promotion of the entire production or operation process and the quality of the final result.

In the cleaning operation of the industry with high cleanliness requirements, accurately grasp the difference between the sub-ultra-fine dust-free cloth and the ultra-fine dust-free cloth, and make a reasonable choice according to the actual situation, is an important link to ensure efficient operation and stable product quality. It is hoped that the detailed analysis of this paper can provide clear and valuable reference and guidance for relevant practitioners in the selection of dust-free cloth, and help them optimize the cleaning process and effectiveness.