Hey there! As a supplier of non woven interlining, I've been getting a lot of questions lately about how to make non woven interlining waterproof. So, I thought I'd share some insights and tips on this topic.
First off, let's understand what non woven interlining is. Non woven interlining is a type of fabric that's used to add stiffness, shape, and support to other fabrics. It's commonly used in garments, bags, and other textile products. You can find different types of non woven interlining on our website, like Non Woven Interfacing Fabric, Chemical Bonded Non Woven Fabric, and Non Woven Embroidery Interlining.
Now, why would you want to make non woven interlining waterproof? Well, there are many reasons. For example, if you're making outdoor clothing or bags, you'd want them to be able to withstand rain and moisture. Waterproof non woven interlining can also be used in industrial applications where protection from liquids is required.
Methods to Make Non Woven Interlining Waterproof
1. Coating
One of the most common ways to make non woven interlining waterproof is through coating. Coating involves applying a thin layer of a waterproof material onto the surface of the non woven interlining. There are several types of coatings available:
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Polyurethane (PU) Coating: PU coatings are popular because they offer good waterproofing properties and are relatively flexible. They can be applied in different thicknesses depending on the level of waterproofing required. The coating process usually involves spreading the PU solution evenly over the non woven interlining and then drying it in an oven. This creates a continuous film on the surface of the fabric, preventing water from penetrating.
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Silicone Coating: Silicone coatings are known for their excellent water repellency and durability. They also provide some degree of breathability, which is important in applications where moisture vapor needs to escape. Silicone coatings can be applied using a similar process as PU coatings, but they may require special curing conditions.
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Wax Coating: Wax has been used for centuries to waterproof fabrics. It's a natural and relatively inexpensive option. Wax coatings work by filling the pores of the non woven interlining, creating a barrier against water. However, wax coatings may not be as durable as synthetic coatings and may need to be reapplied over time.
2. Laminating
Laminating is another effective method for making non woven interlining waterproof. In this process, a waterproof membrane is bonded to the non woven interlining using heat, pressure, or an adhesive.
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Thermal Lamination: Thermal lamination involves heating the non woven interlining and the waterproof membrane to a specific temperature and then pressing them together. This causes the two materials to bond, creating a waterproof composite. Thermal lamination is a fast and efficient process, but it requires specialized equipment.
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Adhesive Lamination: Adhesive lamination uses an adhesive to bond the waterproof membrane to the non woven interlining. There are different types of adhesives available, such as hot melt adhesives and solvent-based adhesives. The choice of adhesive depends on the type of materials being laminated and the desired properties of the final product.
3. Chemical Treatment
Chemical treatments can also be used to make non woven interlining waterproof. These treatments involve applying chemicals to the fabric that react with the fibers to change their surface properties.
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Fluorocarbon Treatments: Fluorocarbon treatments are very effective at making fabrics water and oil repellent. They work by creating a thin layer on the surface of the fibers that reduces the surface tension of water, causing it to bead up and roll off the fabric. However, fluorocarbon treatments have some environmental concerns, so it's important to use them responsibly.
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Silane Treatments: Silane treatments are another option for waterproofing non woven interlining. Silane molecules react with the fibers of the fabric to form a hydrophobic layer. These treatments are often used in combination with other waterproofing methods to enhance the overall performance.
Factors to Consider When Making Non Woven Interlining Waterproof
1. End-Use Application
The intended end-use of the non woven interlining will determine the level of waterproofing required. For example, if it's for outdoor sports clothing, you'll need a high level of waterproofing and breathability. On the other hand, if it's for industrial packaging, you may prioritize durability and chemical resistance over breathability.
2. Cost
The cost of the waterproofing method is an important factor to consider. Some coatings and treatments can be quite expensive, especially if they require specialized equipment or materials. You'll need to balance the cost with the desired performance of the waterproof non woven interlining.
3. Environmental Impact
As mentioned earlier, some waterproofing methods may have environmental implications. For example, fluorocarbon treatments can be harmful to the environment if not disposed of properly. It's important to choose waterproofing methods that are as environmentally friendly as possible.
4. Compatibility
The waterproofing method you choose should be compatible with the non woven interlining material. Some coatings or treatments may damage the fabric or affect its other properties, such as stiffness or color.
Our Expertise as a Non Woven Interlining Supplier
At our company, we have extensive experience in providing high-quality non woven interlining products. We understand the different requirements for waterproofing and can help you choose the best method for your specific needs. Whether you're looking for a cost-effective solution or a high-performance waterproofing option, we've got you covered.
Our team of experts can also assist you with the application process. We can provide technical support and advice to ensure that you achieve the best results. We use state-of-the-art equipment and high-quality materials to ensure the reliability and performance of our waterproof non woven interlining.
Contact Us for Your Waterproof Non Woven Interlining Needs
If you're interested in purchasing waterproof non woven interlining or learning more about our products and services, we'd love to hear from you. Our team is ready to answer all your questions and help you find the perfect solution for your project. Don't hesitate to reach out and start a conversation with us. We're here to make your non woven interlining experience a great one!
References
- "Textile Coating and Laminating" by Christopher C. Cooke
- "Waterproof and Breathable Textiles" by W. S. Hinrichsen
