DIN 53923 Textile Tests - Determination of Water Absorption Properties of Textile Fabrics

The standard “DIN 53923 Textile tests - Determination of water absorption properties of textile fabrics”, published by the German Institute for Standardization (DIN), describes a test method for measuring how well textile fabrics absorb water. This standard is particularly relevant for textile fabrics expected to have a high water absorption capacity, such as cleaning cloths, mops, towels, and other absorbent materials used in household or industrial applications. It focuses on fabrics designed to absorb water quickly and in large quantities.

However, this standard does not apply to wound dressing materials (e.g., medical gauze or bandages). For such cases, simpler methods are used, such as measuring the submersion time of the sample in water (standards such as DIN EN 14079 or DIN 61631).

The DIN 53923 standard specifies procedures for determining two main characteristics:

• Water absorption time: How quickly the fabric absorbs water.
• Water absorption capacity: How much water a fabric can hold (usually expressed as a percentage of the fabric's dry weight or in grams of water per gram of fabric).

These properties are influenced by factors such as fabric texture, density, yarn twist, fiber type (natural and synthetic blends), and the physical structure of the fibers.

This standard's tenth update modernizes the methodology while focusing on reliable and repeatable water absorption measurement for highly absorbent textiles.

In product development and quality control for absorbent textiles (e.g., microfiber cleaning cloths, bath towels, or industrial wipes), consistent water absorption performance is critical for functionality, customer satisfaction, and compliance with performance claims. Laboratories use this standard to test and certify products to ensure materials meet expected absorbency levels under standardized conditions.

In short, the DIN 53923 standard includes a test method for determining the water absorption capacity of textile fabrics designed to absorb significant amounts of liquid. This standard describes a laboratory procedure used to evaluate how much water a textile fabric can absorb and retain under controlled conditions.

This standard applies primarily to the following types of highly absorbent textile materials:

• Non-woven fabrics
• Cleaning cloths
• Medical or hygienic textiles

This does not apply to some medical gauze or dressing materials that fall under other standards.

This method, which focuses on how much water a fabric can absorb and retain, generally follows these steps:

• A textile sample is prepared and weighed.
• The sample is immersed in water (under specific conditions).
• After a certain period of time, it is removed and allowed to float away under the influence of gravity.
• The amount of water absorbed is determined by re-weighing.
• The result is usually expressed as follows:
  • Relative absorption (percentage): Water mass relative to dry mass.
  • Absolute absorption (g/m²)²)

This method evaluates both suction capacity and post-gliding retention ability. These aspects are critical for real-world performance.

The DIN 53923 standard is widely used in the following areas:

• Textile product development
• Quality control in production
• Research and development studies for absorbent materials.
• Performance comparison of fibers and fabrics.

Examples of applications include:

• Cleaning wipes (industrial or household)
• Technical textiles
• hygiene products
• Absorbent nonwoven fabrics

Manufacturers typically specify product performance (e.g., absorption percentage) based on this testing method.

Without a standard like DIN 53923, the results would be inconsistent, misleading, and often impractical. The main reasons why this standard is necessary are as follows:

• It provides comparable results: Different laboratories can do the following:
  • You can use different immersion times.
  • We can apply different drainage methods.
  • You can use different water qualities.

All these factors significantly influence the results. This standard defines the precise conditions under which two companies obtain comparable data when testing the same fabric.

• It reflects true performance: Absorption isn't just about how much water gets into the fabric, but also about:
  • How much water it holds after it drips
  • How it behaves under real-world usage conditions

This standard incorporates controlled drainage, which better simulates real-world use (e.g., wiping, cleaning, or medical application).

• It supports quality control: Manufacturers rely on this standard for the following:
  • Checking party consistency
  • Detecting material defects.
  • Maintaining product specifications

Without a standardized method, quality control procedures can vary, and products can perform unpredictably.

• It enables product development and comparison: Engineers and designers use this standard for the following purposes:
  • Comparing different fibers and structures.
  • Optimizing absorption performance
  • Verifying improvements in R&D activities

It provides a common criterion that is critically important when selecting materials.

• It provides an objective basis for claims: claims such as "absorbs 10 times its weight" or "high absorption performance" for a product need to be verified. The DIN 53923 standard offers a recognized, standardized method to support such claims and prevent misleading marketing.
• It is critically important for hygiene and technical applications: In cleaning textiles, industrial wipes and hygiene products, absorption directly affects efficiency, safety and usability. A low-performing material can lead to:
  • It can leave surfaces wet.
  • It can spread pollutants instead of removing them.

In conclusion, the DIN 53923 standard is a crucial textile testing standard that defines how to measure the water absorption capacity of fabrics. It plays a vital role in evaluating and comparing absorbent materials, ensuring reliability across various sectors from cleaning products to technical textiles.

For many years, our organization, with its competent and experienced staff, has been understanding the needs of its clients, providing the advanced testing services they require, and assisting them in the establishment, implementation, and improvement of management systems. Within this framework, we also provide testing services in accordance with the DIN 53923 standard.