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What is SMS non-woven fabric?
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What is SMS non-woven fabric?
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SMS fabric is used in various applications, including industrial and medical purposes as well as textile and consumer goods. SMS materials are extensively used in the healthcare setting, they are commonly made with coveralls, isolation gowns, surgical face masks, etc.
SMS Fabric
Spunbond-Meltblown – Spunbond is a primary nonwoven tri-laminate fabric. It is made up of a layer of melt-blown polypropylene and is sandwiched between two layers of spun-bond polypropylene. Each of the individual fabric layers contributes to the SMS consequence. When these two fabrics are combined, it provides comfort, water resistance, and breathability.
The manufacturing process of SMS Nonwoven Fabric
There are many ways to bond SMS fabric, but the most common method is thermo-bonding. One side of the roller has a smoother surface, and the other side has tiny pins. Together creates embossed finishes on the opposite side of the fabric. These pins penetrate the fabric only 20% and aid in bonding the layers.
SMS nonwoven is actually a fabric made of a mixture of three nonwovens, which are: spunbond nonwoven and meltblown nonwoven. These two non-woven fabrics are divided into three layers, spunbond non-woven fabric is distributed in the upper and lower two layers, the middle is meltblown non-woven fabric. These three fabrics are a new type of composite material made by the process of hot rolling of the fiber web, and are widely used in the fields of filtration materials, absorption materials, medical materials, sanitary materials, and disposable materials.
How is SMS Nonwoven Fabric Made?
The method of manufacturing sms nonwoven fabric. The method includes the following steps:
(1) preparation of spunbond layer fiber network. The spunbond raw material polypropylene and spunbond masterbatch are mixed, extruded and melted, spun and split into a web to obtain a spunbond layer fiber web.(2) preparation of meltblown layer of fiber network. The meltblown raw material modified polypropylene and meltblown masterbatch are mixed, extruded and melted, spun and laid to obtain the meltblown layer.
(3) Bonding. Using the meltblown layer as the middle layer and the spunbond layer as the upper and lower layers, the three layers are hot pressed and bonded to obtain the sms type nonwoven fabric.
What Are the Applications for SMS Nonwoven Fabric?
Depending on the thickness, SMS nonwoven materials can be used in different areas.1. Thin SMS non-woven fabric (10-25gsm) is especially suitable for the hygiene market because of its waterproof and breathable nature, such as for sanitary napkins, sanitary pads, baby diapers, anti-side-leakage edge and backing of adult incontinence diapers, etc.
2. Medium thickness SMS nonwoven fabric (25-50gsm) is suitable for medical applications, such as surgical gowns, surgical wraps, surgical hoods, sterilization bandages, wound patches, plasters, etc. It is also suitable for industrial applications, such as overalls and protective clothing, etc. With its good isolation performance, SMS products, especially those with triple resistance and anti-static treatment, are more suitable for use as SMS products have been widely used in the world because of their good isolation performance, especially those with triple resistance and anti-static treatment.
3. Thick SMS products (>55gsm) are widely used as high-efficiency filtration materials for various gases and liquids, and are also excellent high-efficiency oil-absorbing materials for industrial waste water degreasing, marine oil cleaning and industrial wipes.
4. Medical nonwoven SMMMS, using 100% polypropylene slices as raw material, non-toxic, no fiber shedding, high effective bacteria blocking rate; good uniformity and fullness of the fabric surface, which can effectively improve product quality.