The Roles of ADL and Negative Ion Chips in Sanitary Napkins

In the structure of sanitary napkins, ADL and negative ion chips play important roles. So, what are the main functions of these two raw materials? We can take a look below：

1. ADL（Absorbent Distribution Layer） Function of ADL

• Rapid absorption & even liquid distribution:
  The ADL efficiently wicks away menstrual fluid and spreads it across the core, preventing localized pooling and keeping the surface dry.

• Reduces backlash & enhances comfort:
  By optimizing liquid dispersion, it minimizes the chance of fluid seeping back, reducing prolonged dampness and discomfort.

• Improves moisture retention:
  Works with SAP (Super Absorbent Polymer) to boost overall absorption capacity and prevent leaks.

2. Function of Negative Ion Chips

• Inhibits bacterial growth:
  Negative ions disrupt bacterial cell membranes or metabolism, lowering the risk of infections caused by prolonged blood exposure.

• Neutralizes odor molecules:
  Through redox reactions, they break down odor-causing compounds (e.g., ammonia, hydrogen sulfide), keeping freshness.

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