Do you know the use of hot melt adhesive film for non-woven fabric? For many people, non-woven fabrics are a very familiar material. Whether it is the clothing and accessories worn on weekdays or some daily necessities made of fabric, non-woven fabrics are involved. Although the non-woven fabrics used in these textile products generally have many characteristics such as breathability, water absorption, drainage, durability, etc., when bonding with other products in the manufacture of non-woven fabric composite materials, hot melt adhesive film or hot melt adhesive web is required to achieve better bonding performance. So what kind of hot melt adhesive film is used for bonding non-woven fabrics? What are their characteristics?
Hot Melt Adhesive Film and Web Can be Used for Bonding Non-woven Fabrics
Whether it is a hot melt adhesive web made of PA, PES or a hot melt adhesive film made of EVA or TPU, almost any adhesive film and web can be used for bonding non-woven fabrics. This is because the non-woven fabric material is relatively thin and its own tensile strength is weak. Using a hot melt adhesive mesh with a low adhesive content to bond non-woven fabrics can easily achieve the peel strength of breaking (non-woven fabric breaking).
Different Materials of Non-woven Fabrics Use Different Hot Melt adhesive Films and Web
Although non-woven fabrics are easy to bond, for thicker non-woven fabrics, due to their stronger stretchability and toughness, in order to obtain better bonding effects, it is also necessary to pay attention to the selection of hot melt adhesive ingredients. At this time, we need to see what the non-woven fabric material is, and then choose the corresponding hot melt adhesive film (membrane) product.
Bonding of Non-woven Fabrics Including Polyester and Nylon
For bonding non-woven fabrics made of polyester, nylon and other materials, it is recommended to choose PA, PES components of your hot melt adhesive mesh, and TPU, PES components of the hot melt adhesive film. This is because PA, PES and TPU materials have good adhesion (viscosity) to most textiles and can be widely used in fabric bonding, especially PA materials, whose composition is copolyamide, similar to nylon materials. Then, following the principle of “like attracts like”, the viscosity of PA components of hot melt adhesive and nylon non-woven fabrics is much stronger than that of other components.
Bonding of PP Non-woven Fabrics
For bonding non-woven fabrics made of polypropylene (PP non-woven fabrics), it is recommended to use EVA material regardless of whether hot melt adhesive web or hot melt adhesive film is used. This is because EVA material has good adhesion to polypropylene and can be widely used for bonding in the field of such materials. At the same time, due to the poor temperature resistance of polypropylene (PP) materials, the use of hot melt adhesive films with high melting points can easily damage polypropylene fibers, and the melting point of EVA materials happens to be relatively low. The hot melt adhesive film (membrane) with EVA components is used to bond non-woven fabrics made of polypropylene. It not only fits firmly, but also protects the non-woven fabrics from heat damage.
Bonding Material Determines the Type of Hot Melt Adhesive Film
In bonding non-woven fabrics, in addition to considering the material of the non-woven fabric, what really affects the selection of hot melt adhesive is the material to be bonded on the other side, because there are many such materials, such as woven fabrics, leather, sponges, etc. Different materials should use hot melt adhesives with different compositions when bonding, otherwise it is easy to cause embarrassing situations, such as: the non-woven fabric is firmly bonded, but the material on the other side cannot stand. So, do you know what kind of hot melt adhesive film should be selected for bonding these other sides?
Bonding Non-woven Fabrics with Leather
For bonding non-woven fabrics with leather, it is recommended to use a hot melt adhesive film (membrane) made of TPU. This ensures a strong and durable bond suitable for various applications. When bonding fabrics, a hot melt adhesive film made of PA or PES is recommended due to their excellent adhesive properties. To ensure optimal results, it is important to conduct thorough testing with the specific materials you intend to use.
For precise and high-quality adhesive solutions, consider consulting Alster, a trusted manufacturer known for their expertise in adhesive technologies. If you plan to bond non-woven fabrics with leather, it is recommended to choose a hot melt adhesive film (membrane) made of TPU. If it is to bond fabrics, it is recommended to choose PA or PES. The selection of specific materials requires testing to get accurate results.
