How to store PU leather substrate cloth properly?

Proper storage of PU leather substrate cloth is crucial for maintaining its quality and performance. As a reliable supplier of various PU leather substrate cloth, including 100% Polyester Backing for PU Leather, Milk Silk PU Leather Substrate Fabric, and Artificial Leather Substrate Fabric, we understand the significance of effective storage methods. In this blog post, we will share some scientific and practical tips on how to store PU leather substrate cloth properly.

1. Understand the Characteristics of PU Leather Substrate Cloth

Before diving into the storage methods, it's essential to have a basic understanding of the properties of PU leather substrate cloth. PU leather substrate cloth is often used as a base material for synthetic leather, which is made by coating or laminating polyurethane on a fabric backing. The fabric backing can be made of various materials such as polyester, milk silk, etc. This type of cloth has certain characteristics that need to be considered during storage, including moisture sensitivity, susceptibility to sunlight damage, and potential for mechanical damage.

2. Choose the Right Storage Environment

Temperature and Humidity Control

The ideal storage temperature for PU leather substrate cloth is between 20 - 25°C (68 - 77°F). Fluctuations in temperature can cause the material to expand and contract, which may lead to cracking or deformation over time. High temperatures can also accelerate the aging process of the polyurethane coating.

Humidity levels should be kept at around 40 - 60%. Excessive humidity can promote the growth of mold and mildew on the cloth, while low humidity can cause the material to become dry and brittle. To maintain the appropriate humidity, you can use a dehumidifier in humid environments or a humidifier in dry environments.

Ventilation

Good ventilation is necessary to prevent the accumulation of moisture and harmful gases. Storing the cloth in a well - ventilated area helps to keep the air fresh and reduces the risk of mold growth. However, avoid placing the cloth directly in front of strong air currents, as this can cause the cloth to become wrinkled or damaged.

Sunlight Protection

PU leather substrate cloth should be stored away from direct sunlight. Ultraviolet (UV) rays in sunlight can cause the color of the cloth to fade and the polyurethane coating to deteriorate. If possible, store the cloth in a dark room or use opaque storage containers to protect it from sunlight.

3. Proper Packaging

Wrapping

Before storing the PU leather substrate cloth, it should be wrapped properly to protect it from dust, dirt, and physical damage. You can use plastic wrap or kraft paper to wrap the cloth. Make sure the wrapping is tight enough to prevent the cloth from moving around, but not too tight to cause creasing or deformation.

Sealing

For long - term storage, it's a good idea to seal the wrapped cloth in a plastic bag or a sealed container. This helps to keep the moisture and dust out. You can also add a desiccant packet inside the bag or container to absorb any excess moisture.

4. Storage Position and Support

Rolling or Folding

The best way to store PU leather substrate cloth is usually by rolling it onto a cardboard tube. Rolling helps to prevent creasing and folding marks that can affect the quality of the cloth. Make sure the tube is clean and free of any sharp edges that could damage the cloth.

If rolling is not possible, folding can be an alternative. However, when folding, you should fold the cloth along the natural grain lines to minimize stress on the material. Avoid making sharp folds or folding the cloth too often in the same place.

Stacking

When stacking multiple rolls or folded pieces of cloth, be careful not to stack them too high. Excessive weight on the bottom layers can cause deformation, especially if the storage duration is long. You can use pallets to support the stacks and ensure even weight distribution.

5. Regular Inspection

Regular inspection of the stored PU leather substrate cloth is essential to detect any potential problems early. Check for signs of mold, mildew, discoloration, or physical damage. If any issues are found, take appropriate measures immediately, such as cleaning the affected area, adjusting the storage conditions, or re - packaging the cloth.

6. Handling During Storage

Minimize Movement

Try to minimize unnecessary movement of the stored cloth. Frequent handling can increase the risk of damage, such as scratches, tears, or creasing. If you need to move the cloth, use proper lifting equipment and handle it gently.

Avoid Contact with Sharp Objects

Keep the PU leather substrate cloth away from sharp objects during storage. Even a small scratch can compromise the integrity of the cloth and affect its performance when used for making synthetic leather.

7. Considerations for Different Types of Substrate Cloth

100% Polyester Backing for PU Leather

Polyester is a relatively stable material, but it can still be affected by moisture and heat. When storing 100% polyester backing for PU leather, pay special attention to humidity control. Polyester can absorb some moisture, and if it is stored in a humid environment for a long time, it may develop a musty smell.

Milk Silk PU Leather Substrate Fabric

Milk silk is more delicate than polyester. It is more prone to damage from friction and sharp objects. When storing milk silk PU leather substrate fabric, use soft wrapping materials and avoid rough handling. Also, keep it away from strong chemicals, as milk silk can be sensitive to chemical reactions.

Artificial Leather Substrate Fabric

Artificial leather substrate fabric may have different surface treatments and coatings. Some coatings may be more sensitive to temperature and humidity changes. Therefore, it's important to follow the specific storage instructions provided by the manufacturer for this type of fabric.

In conclusion, proper storage of PU leather substrate cloth is a comprehensive process that involves choosing the right environment, packaging, storage position, and regular inspection. By following these scientific and practical tips, you can ensure that the quality of the cloth is maintained during storage, which in turn can guarantee the quality of the final synthetic leather products.

If you are interested in our PU leather substrate cloth products, including 100% Polyester Backing for PU Leather, Milk Silk PU Leather Substrate Fabric, and Artificial Leather Substrate Fabric, and want to discuss purchasing details, we welcome you to get in touch with us. We are committed to providing high - quality products and excellent service.

References

• "Handbook of Synthetic Leather Materials and Technology"
• Research papers on the properties and storage of textile - based materials for polyurethane coatings.