The Advantages and Main Uses of Thermal Bond Nonwoven

The thermal bonded nonwovens are textiles made by melting thermoplastic powders or fibers with heat. We'll talk about fibers today because they're used in the majority of heat bonded nonwovens. Heat can be applied to the fibers in a variety of methods. When two or more fibers cross, they can be heated and melted into one another. When they cool, they will become connected, adding strength to the cloth.

This thermal bonded non woven fabric might be exceedingly light and thin, or quite heavy and thick, with a range in between. They are used in a variety of items, including hygiene products, insulation, padding or cushioning, and others. Thermal bonding begins with the formation of fibers into a fiber batt using either carding or air-laying devices.

In the below article, you can easily get all the knowledge and information about the thermal bonded nonwoven fabric as well as the advantages and procedures.

The primary advantages of thermal bonded nonwovens:

Lightweight:

With polypropylene resin as the main raw material, the specific gravity is only 0.9, only three-fifths of cotton, fluffy, and feels good.

Softness:

Composed of fine fibers that are 2-3d and formed by light point hot-melt bonding. Product softness is moderate, with comfort.

The non-irritating & non-toxic methods:

Produced with food-grade raw materials conforming to FDA, without other chemical ingredients, with stable performance, non-toxic and non-smelly, and without irritating the skin.

The activity of Antimicrobial:

Products with water, not moldy, and isolated in the liquid bacteria and insect erosion, not the moldy moth.

Well physical properties:

By the polypropylene spinning direct shop into the hot network bond, the product strength is better than the general staple fiber product; the strength has no direction, and the vertical and horizontal strength is similar.

Calendering methods used:

Calendaring is the process of passing the web under pressure between heated rollers, which eventually squeezes the web together. Between the rollers, the fibers are melted. The pressure between the rollers flattens the web, resulting in a thin, flat cloth.

These rolls can be solid or pattern-filled. Solid rolls melt all of the thermoplastic fiber, resulting in a solid, rigid fabric. Patterns can also be engraved on the top roll, resulting in a roll where the non-engraved sections are higher than the engraved areas, melting only the fibers beneath the raised parts of the rolls. The thermal bonded non woven fabric bonding occurs at the intersections of the fibers in the spaces between the elevated segments of the top and bottom rolls.

Ultrasonic method use:

The top roller is replaced by a device that generates heat using ultrasonic energy and may make the same sort of textiles as calendaring. The pattern, if any, is on the lower roll in ultrasonic bonding.

Both of these textiles have a fabric weight restriction because if the web is too thick, heat will not pass to the center of the web, and it will not stay bonded.

Air-bonding method use:

Webs are created and then passed through an oven with one side heated. Negative pressure, on the other hand, draws heated air through the web, melting and bonding the fibers. This ensures that heat is distributed evenly across the web. This process may generate thick, lofty textiles if the web is sandwiched securely between two belts while heating. It can also make thin fabrics.

The usage of pieces of cotton in thermal bonded nonwovens:

The fabric has been made from cotton blends, including up to 80% cotton. However, because the strength of thermal bonded nonwovens is derived from thermal bonded non woven fabric melting at fiber intersections, adding more cotton reduces the fabric's strength. Because there will be no bonding when any cotton fibers cross, however, if thermoplastic and cotton fibers come into contact, the thermoplastic will attach to the cotton.

Finally, you should feel free to use as much cotton as necessary in your thermal bonded non woven fabric until you meet the strength requirement limit for your product.

Conclusion:

Thermal bond nonwoven textiles are made by melting polyester at high temperatures, winding, cutting, spinning into a network, hot-rolled bonding, and other continuous manufacturing processes. Thermal bond nonwoven textiles are commonly used in medical supplies, filter materials, maternity and child health products, apparel, product packaging, installed shoes and headgear, and domestic items, among other applications.