RK Paper Non Water Absorbent, Color : White for Pump Use

Non-Water Absorbent Paper Description and Specification

Description: Non-water absorbent paper refers to paper that has been specially treated or manufactured to resist the absorption of water or other liquids. Unlike conventional paper, which typically soaks up water, non-absorbent paper is designed to maintain its integrity, strength, and appearance even when exposed to liquids. This type of paper is often used in situations where the paper needs to remain dry, retain its surface qualities, or be resistant to water stains and damage.

Non-water absorbent papers can be produced using special coatings, additives, or a specific paper-making process. Some common forms of non-water absorbent paper include laminated paper, wax-coated paper, plastic-coated paper, and some types of synthetic paper.

Specifications:

1. Material Composition:

   • High-quality cellulose fibers or synthetic materials.
   • Coatings or additives such as polyethylene, wax, or polymer layers.

2. Thickness (Caliper):

   • Typically ranges from 0.1mm to 0.5mm, depending on the purpose.
   • Can vary based on the type of non-water absorbent paper.

3. Basis Weight:

   • Usually measured in GSM (grams per square meter) or lbs.
   • Common values range from 40 GSM to 250 GSM, depending on strength and intended use.

4. Opacity:

   • Ranges from 70% to 100% opacity, depending on the coating and fiber composition.
   • Higher opacity is generally used for packaging or labels.

5. Surface Finish:

   • Smooth, glossy, or matte finishes depending on the treatment.
   • Can also have embossed or textured surfaces, depending on the manufacturing process.

6. Water Resistance:

   • Complete resistance to water absorption, with a water contact angle typically exceeding 90°.
   • Capable of maintaining its shape, strength, and integrity when exposed to moisture or liquids.

7. Tensile Strength:

   • High tensile strength to resist tearing when wet, typically greater than 2 N/m.
   • This is critical for packaging and industrial applications where durability is required.

8. Moisture Vapor Transmission Rate (MVTR):

   • Low MVTR, meaning the paper will not allow moisture to pass through it.
   • Ideal for applications where moisture protection is essential.

9. Durability:

   • Resistant to common environmental factors such as water, oils, and chemicals.
   • Can endure a range of temperatures without degrading.

10. Applications:

    • Food packaging: Used for products that need to resist moisture but are not in direct contact with liquid (e.g., sandwich wraps, tray liners).
    • Labels and stickers: Non-water absorbent paper is commonly used for labels that need to withstand exposure to water, oil, or dirt.
    • Protective coverings: In construction, electronics, and other industries where protection from moisture is required.
    • Outdoor signage and advertising materials: Durable in rainy conditions, helping to maintain legibility and integrity.

11. Environmental Considerations:

    • Depending on the coating or additives used, non-absorbent papers may or may not be recyclable.
    • Some products are biodegradable, especially those using eco-friendly coatings.

Advantages:

• Enhanced durability and resistance to water damage.
• Retains structural integrity when exposed to wet conditions.
• Longer shelf-life and better performance in harsh conditions.

Limitations:

• Can be more expensive than regular paper.
• Coatings and treatments may reduce recyclability in some cases.