Material Requirements For Spunlace Wipes

Author:Baby & Adult Diaper Materials FROM:Diaper Materials Manufacturer TIME:2023-03-29

1. Brief introduction of spunlace wipes

This article briefly introduces the performance and quality requirements of spunlace wipes for materials.

Spunlaced nonwovens have a certain strength and thickness, which can meet the water absorption performance requirements of wet wipes, without delamination, lint-free, smooth and soft surface, and no obvious defects and impurities. Spunlaced nonwovens are non-toxic and non-irritating, and the pH value is basically guaranteed to be weakly acidic. The pH value of human skin is slightly acidic. In order to protect the baby's skin, the pH value of baby wipes is usually around 4.5~5.5. There is no chemical reaction process or addition of chemical components in the production process of spunlace nonwovens. It is only the high-pressure water filtered through multiple channels to physically strengthen the fibers.

wet wipes

2. Fiber quality

Fiber quality has an important influence on the quality of spunlace nonwovens, and high-quality spunlace nonwovens must require high-quality fiber raw materials. The raw materials of spunlace nonwovens are mostly viscose fibers and polyester fibers. High-quality spunlace nonwovens mostly use polyester fibers and high whiteness viscose fibers specially used for nonwovens, which can affect the cleanliness, spinnability, whiteness and safety (such as odor, pH value, heavy metal content) of fibers. etc.) performance requirements. For example: The viscose bleaching process requires the use of hydrogen peroxide bleaching instead of the usual chlorine bleaching to avoid irritating chlorine ions. At the same time, there are strict requirements on the sulfur content of viscose fiber.

spunlace wipes

3. Microbial content

As one of the most important raw materials of wet wipes, in order to ensure the safety factor of wet wipes microbial control, it is necessary to monitor the microbial indicators of spunlace cloth. It is usually required that the total number of bacterial colonies of spunlaced nonwovens be less than 300 cfu/mL. In the actual production process of spunlace nonwovens, after rinsing in the spunlace process and drying with hot air above 1.0°C in the drying process, the total number of bacterial colonies in spunlace nonwovens is less than 50 cfu/mL, generally between 0~ Between 15 cfu/mL. The main sources of pollution affecting the microbial quality of spunlace nonwovens include air dust in the production environment, work surfaces, operators' palms and clothes, and items in contact with spunlace nonwovens. If we have better control of the above pollution sources, under a suitable packaging and storage environment, the total number of bacterial colonies of spunlace nonwovens will still be less than 100 cfu/mL even after one year. Spunlaced nonwoven packaging materials should be non-toxic, harmless, non-polluting, not easily damaged, and have certain moisture-proof and dust-proof functions to prevent secondary pollution. Understanding the material requirements of spunlace wipes is conducive to the further development of the industry.

spunlace non woven

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