SMS non-woven fabric
It is formed by hot-rolling a three-layer web of spunbond nonwoven fabric + meltblown nonwoven fabric + spunbonded nonwoven fabric. It is a composite nonwoven fabric. It is a composite product of spunbond and meltblown. It is non-toxic, odorless, and highly effective. bacteria. Through special treatment of equipment, it can achieve antistatic, anti-alcohol, anti-plasma, water repellent and water production performance.
SMS production process
Add 3%-7% masterbatch in the production of SMS non-woven fabrics; Preparation of functional additives: Functional additives are mixed with water repellent, flame retardant, antistatic agent, penetrant and water; The SMS non-woven fabric is immersed in an impregnation tank with functional additives, rolled, dried, and cooled to obtain the desired multi-functional SMS non-woven fabric.
At present, the main processes for manufacturing SMS non-woven fabrics include three methods: “one-step method”, “two-step method” and “one-step and half method”.
SMS product performance
It is non-toxic, tasteless and highly effective in separating bacteria. Through special treatment of equipment, it can achieve antistatic, anti-alcohol, anti-plasma, water repellent and water production performance.
Features of non-woven fabrics: durable, disposable. Insulating and non-conductive. Softness and stiffness. Density and expansion. Isotropic, anisotropic. Filterability, breathable and impermeable. Elasticity and stiffness. Light, loose and warm. Thin as a cicada’s wings, thick as felt. Waterproof and breathable. Ironing, stitching, and compression molding. Flame retardant and antistatic. Water-permeable, waterproof, abrasion-resistant, and flocking. Wrinkle resistant, good elasticity, high moisture absorption, water repellency.
1. Lightweight: Polypropylene resin is used as the main raw material for production. The specific gravity is only 0.9, only three-fifths of cotton. It is fluffy and feels good.
2. Softness: It is composed of fine fibers (2-3D) and is formed by light-point hot-melt bonding. The finished product is moderately soft and comfortable.
3. Water-repellent and breathable: Polypropylene slices do not absorb water, have zero water content, and have good water-repellent properties. They are made of 100% fiber and are porous and air-permeable. It is easy to keep the cloth dry and easy to wash.
4. Non-toxic and non-irritating: The product is produced with FDA food-grade raw materials, does not contain other chemical components, has stable performance, is non-toxic, non-odor, and does not irritate the skin.
5. Antibacterial and anti-chemical agents: Polypropylene is a chemically blunt substance, not moth-eaten, and can isolate the corrosion of bacteria and insects in the liquid; antibacterial, alkali corrosion, and the strength of the finished product will not be affected by erosion.
6. Good physical properties: It is made of polypropylene spun yarn directly spread into a net and thermally bonded. The strength of the product is better than that of ordinary staple fiber products, the strength is non-directional, and the vertical and horizontal strengths are similar.
SMS non-woven fabric use
SMS non-woven materials can be used in different fields from the thin and thick products:
1. Thin SMS non-woven fabric (10-25gsm), due to its waterproof and breathable properties, is particularly suitable for the sanitary market, such as sanitary napkins, sanitary pads, baby diapers, adult incontinence diapers and anti-leak edges and backing Wait.
2. Medium-thickness SMS non-woven fabric (25-50gsm), suitable for use in medical treatment, making surgical gowns, surgical wraps, surgical drapes, sterilization bandages, wound placards, plasters, etc. It is also suitable for industrial use. Used to make work clothes, protective clothing, etc. SMS products are more suitable for high-quality medical protective materials due to their good isolation performance, especially those SMS products that have undergone three anti-static and anti-static treatments, and have been widely used worldwide.
3. Thick SMS products (>55gsm) are widely used as high-efficiency filter materials for various gases and liquids. At the same time, they are also excellent high-efficiency oil-absorbing materials, used in industrial wastewater degreasing, marine oil cleaning and industrial wipes.
The medical non-woven fabric SMS uses 100% polypropylene chips as the raw material, which is non-toxic, no fiber shedding, and has a high effective anti-bacterial rate; the fabric has good uniformity and fullness, which can effectively improve product quality.
SMMMS can replace pure cotton fabrics with soft, delicate and skin-friendly properties. The spunbond layer is composed of continuous filaments with good breaking strength and elongation. The meltblown layer is composed of continuous ultrafine fibers, which has a good barrier effect on moisture, bacteria, dust, etc. It has high water pressure resistance and good air permeability, good acid and alkali resistance. Suitable for high and low temperature and other sterilization methods; one-time use, no need to recycle or clean; meet environmental protection requirements, easy to degrade or incinerate; effectively prevent hospital cross-infection, reduce the hidden cost of treatment, and improve the infection control rate; no multiple use Damaged consumption; no washing cost; storage under qualified conditions, aseptic validity period of 180 days.
Three-resistance non-woven fabric SMMS is made of spunbonded non-woven fabric + melt-blown non-woven fabric + melt-blown non-woven fabric + spun-bonded non-woven fabric, four-layer fiber web hot rolled. Have all the characteristics of ordinary SMMS non-woven fabric; anti-alcohol up to level 10 (that is, 100% alcohol-resistant); anti-static ability up to 108-1012; anti-oil; anti-plasma; mainly used in surgical gowns, surgical drapes, surgical kits Cloths, medical bed sheets, hand-washing suits, isolation suits, laboratory suits, advanced protective suits and other protective products can be made in different colors according to different customers’ preferences.
The common disposable isolation fabrics on the market are mainly made of PP polypropylene fiber or SMS or ordinary non-woven fabric (PP+PE film) with a general weight of 35-50g/m2, excellent protection performance, and breathable comfort. In addition, the main material of the microporous protective clothing is coated non-woven fabric (PTFE composite fabric), and the conventional weight is 80-100g/m2, which has the characteristics of preventing the penetration of microorganisms and good blood permeability.
SMS non-woven fabric special process treatment
Various special treatments are carried out on non-woven fabrics to meet customer requirements for various special properties of non-woven fabrics. The treated non-woven fabric has anti-alcohol, anti-blood, and oil-resistant functions, and is mainly used in medical surgical gowns and surgical drapes.
Antistatic treatment: Antistatic non-woven fabrics are mainly used as materials for protective equipment that have special environmental requirements for static electricity.
Water-absorbing treatment: Water-absorbing non-woven fabrics are mainly used in the production of medical consumables, such as surgical drapes, surgical pads, etc.
Flame-retardant treatment: Flame-retardant non-woven fabrics are widely used in furniture products and aviation products.
Antibacterial deodorization and photocatalyst effect treatment: This type of non-woven fabric is mainly used in the field of household products.
Anti-ultraviolet treatment: Anti-ultraviolet, anti-aging non-woven fabrics are mainly used in agricultural covering cloths, car covers and other fabrics where sun protection and anti-aging effects are required.
Fragrance treatment: Fragrance non-woven fabrics are used in sanitary products (mint, lemon, lavender, etc.).
Post time: Dec-02-2021