What have been introduced to enhance the absorbency and liquid retention capabilities of non-woven fabrics used in wet wipes?
Advancements in enhancing the absorbency and liquid retention capabilities of non-woven fabrics used in wet wipes have been a focus of research and development. Several innovations and technologies have been introduced to address these key performance attributes:
Hydroentanglement is a process that involves high-pressure water jets to mechanically entangle fibers. This technology enhances the overall structure of non-woven fabrics, creating a more open and porous network. The increased surface area improves absorbency and allows for efficient liquid retention in wet wipes.
The use of microfiber technology involves incorporating extremely fine fibers into non-woven fabrics. Microfibers offer a higher surface area and increased capillary action, promoting rapid liquid absorption and retention. This technology is particularly effective in producing highly absorbent wet wipes.
Cross-linking involves chemically bonding the fibers within non-woven fabrics. This process enhances the fabric's strength and stability, preventing it from breaking down or losing absorbency when exposed to liquids. Cross-linked fibers contribute to improved wet strength and liquid retention.
Airlaid technology utilizes a process where pulp fibers are dispersed in an air stream and then bonded together. This creates a non-woven material with a structure that resembles traditional textiles. Airlaid non-woven fabrics are known for their excellent absorbency, making them suitable for wet wipes in various applications.
What types of non-woven fabrics are commonly used in the production of wet wipes?
Spunlace, also known as hydroentangled or spunlaced fabric, is created by mechanically entangling fibers using high-pressure water jets. This process results in a soft and cloth-like texture. Spunlace fabrics are known for their high absorbency, making them suitable for various wet wipe applications, including personal care and household cleaning.
Spunbond fabrics are produced by extruding continuous filaments onto a conveyor belt and then bonding them together. These fabrics are characterized by their strength and durability. While not as soft as spunlace, spunbond non-woven fabrics are often used in industrial wet wipes where strength and resilience are crucial.
Meltblown fabrics are created by extruding melted polymer through small nozzles, forming microfibers that are collected on a conveyor. The resulting fabric has a fine texture and is known for its excellent filtration and absorption properties. Meltblown fabrics are commonly used in wet wipes for their ability to capture and retain liquids efficiently.
Airlaid fabrics involve a process where pulp fibers are dispersed in an air stream and then bonded together. Airlaid non-woven fabrics have a structure resembling traditional textiles and offer high absorbency. They are often used in premium and highly absorbent wet wipes, including those designed for skincare or medical applications.