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Views: 0 Author: Site Editor Publish Time: 2023-02-27 Origin: Site
Non-woven fabric is a new technology with a promising development prospect in the textile industry. It has a unique structure and a changeable production process. It is incomparable to traditional textiles. Non-woven fabric is a sheet or felt made of fiber, yarn, or filament as raw material, bonded or combined by mechanical and chemical methods.
Non-woven fabrics have a wide range of raw materials, are short process, can skip spinning, warping, weaving, and processing costs are low, so it is widely used. In addition to extensive use in industry, agriculture, fishery, water conservancy, and environmental protection, non-woven fabrics have a broader development space in the medical and health industry.
The non-woven fabrics used in the medical field have the characteristics of a short production cycle, flexible process, and diverse functions.
Non-woven fabrics in the medical and health field
Protective medical non-woven products
1. Base material for wound dressing
Non-woven fabrics used in the medical and health field can be divided into two categories. One is protective medical non-woven products. The other is functional medical supplies.
1. Protective medical textile products mainly include: surgical gowns, masks, bed sheets, surgical sheets, protective clothing, surgical drape, etc.
2. Functional medical supplies mainly include bandages, sutures, medical filtration materials, and artificial tissues and organs with relatively high technical content, such as artificial blood vessels and artificial skin.
Protective medical products are generally disposable products that can prevent infection caused by the invasion of bacteria and viruses. Compared with traditional textile products, disposable non-woven products have the advantages of better therapeutic and protective effects, low cost, and high comfort.
As a surgical gown, it is required to be safe for both the patient and the doctor. When fluid penetrates the material, microorganisms are also introduced, and the surgical gown is required to prevent fluid penetration and antibacterial property.
There are several non-woven processes for surgical gowns, such as spunlaced non-woven fabrics, spun-bond non-woven fabrics, wet non-woven fabrics, and polypropylene SMS non-woven fabrics. Non-woven fabrics produced by these processes have better antimicrobial activity
properties than cotton fabrics after special processing. The surgical gowns made with spun-lace and spun-bond methods are more comfortable, so there's a lot of demand.
The surgical drape should be close to the patient's skin, keep the surgical area clean and sterile, not easy to slide, and not loud. Therefore, antibacterial and dust-free are the principal properties, and the general surgical drape must be sterilized and non-slip treatment.
There are two categories of surgical drapes, water-repellent and water-absorption-waterproof.
A. The water-repellent drapes' functions are to drain away contaminated fluid from the patient's surgical site in time and keep the area around the operation clean. It is made of spunlaced non-woven fabric after water-repellent finishing.
B. Absorption-waterproof drape to make the contaminated liquid flowing from the surgical area be absorbed by the surface of the cloth and cannot penetrate the back of the drape so as not to cause the spread of the contaminated liquid.
The use of Medical Caps is to prevent bacterial contaminants such as dandruff and dust that fall from your hair.
There are various medical caps, including surgical caps, bouffant caps, and nurse caps. The mode of Medical caps productions are wet, polypropylene spun-bond, and spun prick methods.
Medical masks can prevent infection between doctors and patients. It requires a high degree of antibacterial and air permeability.
Nowadays, the masks are made of generally composite material with melt-blown microfiber non-woven fabric in the middle. The melt-blown method can ensure that the fiber mesh structure is uniform. Even if the fiber mesh mass is light, it has a high filtration efficiency.
The bacterial filtration efficiency of polypropylene melt-blown non-woven masks can reach more than 95% and good air permeability. It is lightweight, has no allergy, and low cost.
Before surgery, surgical instruments and other items need to be sterilized to ensure that the patient is operating in a sterile environment, and sterilization wrap is the most commonly used wrapping material.
The sterilization wrap mainly uses SMS composite cloth in which the melt-blown microfiber protective layer has enough pores to allow a large amount of disinfection steam to enter and exit the packaging bag.
Functional medical supplies refer to the supplies used to treat patients. These include medical supplies for wounds, medical filtration materials, and health care products. Such products put forward higher requirements for the health standards and medical functions of fibers and their products.
The absorbable layer of the wound dressing is a non-woven fabric made of cotton and viscose rayon. It has a breathable moisturizing function. The wound contact layer is a non-woven fabric made of silk, polyamide fiber, alginate fiber, chitin fiber, etc. This non-woven fabric not only can prevent the dressing from sticking to the wound but also produce hydrophilic substances such as sodium alginate and calcium alginate gel. Hydrophilic gels allow oxygen to pass through while bacteria cannot, absorb dirty blood and exudates, prevent infection, and promote the formation of new tissues.
Non-woven wound dressings have good absorbability, no toxicity, affinity with the wound, and are conducive to wound healing.
Non-woven fabrics have excellent properties such as easy to sterilize, easy to functional design, easy to use, safe, and reliable, which promote more non-woven products to be applied in medicine and the health field. The change and importance of medical non-woven fabrics to human health and life are enormous. With the continuous innovation of new technology, equipment, and functional fibers, more high-tech medical and health care, and protection non-woven products will be developed to benefit human beings.
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