Biodegradable cellulose fibers are cotton fibers, viscose fibers, cellulose acetate fibers, and Lyocell fibers. Viscose fiber viscose fiber is used in spunlace nonwoven fabric. Cellulose fiber has good skin contact, wearing comfort, physiological safety, moisture absorption and easy finishing, and its products are easily biodegradable. Fully versatile, cellulose-based nonwovens have unique uses in medical, care, hygiene, cosmetics, and other industrial applications. In the developed countries of Europe, America and Japan, cellulose fiber has been widely used as an important raw material for nonwovens. Hair Curling Tools,Rechargeable Curling Tools,Cordless Hair Styling Irons,Usb Hair Straightening Styler CIXI BAOFANLY ELECTRICAL CO.,LTD , https://www.cnbaofanly.com
The spunlace method is a new non-woven fabric production technology in recent years. The various non-woven fabrics produced by this method are soft to the touch, high in strength, good in breathability and moisture absorption, so they are widely used and become the focus of the future development of the nonwovens industry. . The spunlace nonwoven fabric production technology is a nonwoven fabric formed by using a "water needle" formed by high pressure to entangle and weave the fibers together. The use of clean water to make the fibers knot, does not require resin bonding, and has the characteristics of simple production process and good environmental protection. Viscose fiber has good hygroscopicity, soft handfeel, no allergic reaction to human body and natural degradation. It is especially suitable for medical hygienic materials and disposable materials. Viscose fiber spunlace nonwoven fabric has excellent drape and extremely soft hand feeling. It has good fluffy air permeability, high strength, good moisture absorption, no fluffing, no chemical binder, and is widely used in sanitary materials and family life. Supplies and decorative fabrics, etc.
Viscose fibers can be used alone in the production of spunlaced nonwovens or in combination with other synthetic fibers to compensate for the disadvantages of synthetic fibers (eg poor moisture absorption). In the production of spunlaced nonwovens, 50% viscose fiber and 50% polyester fiber are often mixed into a net. The viscose/polyester spunlace is treated with water to form a surgical cover cloth, which has good flexibility, drapability, water absorption/water repellency and water repellency. Water thorn cloth for surgical gowns and medical sheets is an ideal material. Many hospitals in developed countries such as Europe, America and Japan use spunlace as surgical gowns. In particular, the cloth surface is chemically treated to be water-repellent. When the patient's blood wave splashes onto the surgical gown during surgery, the water drops will automatically roll down, which can protect the medical staff's clothes from being contaminated and the body from virus infection.
Viscose fiber is applied to needle-punched nonwoven fabric viscose fiber after being opened into a needle-punched base fabric by opening, airflow, mixing, quantitative fiber feeding, carding, laying, pre-needling, main acupuncture, and acupuncture. The activated carbon fiber base fabric is further processed by chemical treatment, drying, heat treatment, high temperature carbonization and activation. The product has the characteristics of fast adsorption speed, large adsorption capacity, long service life, convenient desorption, heat resistance, insulation and corrosion resistance. It can be widely used in the fields of environmental protection, medical and health care, civil health care, radioactive protection, precious metal recovery, wastewater and waste gas treatment, etc., and has broad development prospects.
Viscose fibers are used in the production of nonwoven fabrics. In addition to the same advantages as cotton fibers, the appearance of the products is more beautiful because there is no lint. When a viscose fiber is used in the medical industry to produce a nonwoven fabric by a spunlace method, the bleaching aid used is required to contain no nitrogen and cannot use a binder. In order to give the final product some special properties, viscose fibers can also be blended with polypropylene or polyester fibers.
Lyocell fiber Lyocell fiber performance Lyocell fiber is an environmentally friendly cellulose fiber, the production process is non-polluting, has good biodegradability and moisture absorption, softness, wearing comfort. Unlike ordinary viscose fiber, it dissolves fiber pulp (wood pulp or cotton pulp) directly in an organic solvent. After the solution is filtered, defoamed, etc., it is extruded and solidified into fibers. This fiber performance is very good:
All the natural properties of cellulose fiber, including good hygroscopicity, comfortable wearing, good gloss, excellent dyeability and biodegradability, can be completely biodegraded in a short period of time; dry, wet and wet modulus high;
The shrinkage rate of the fabric is very low, the fabric has good dimensional stability and has washability;
The fiber has a round cross section and a smooth surface, and the fabric has a silky luster.
In addition to being widely used in woven fabrics and knitted fabrics, Lyocell fibers can also be used in industrial filter cloths for non-woven fabrics, specialty papers, cigarette filter cores, and medical material base fabrics.
Lyocell fiber is used in spunlace nonwoven fabric. Lyocell fiber is widely used in the production of spunlaced nonwoven fabric. Because of its high strength, good water absorption and fibrillation during processing, it is excellent in properties for nonwoven fabrics. The fiber has higher strength than other cellulose fibers, less elongation, high initial modulus, less deformation during spunlacing, spunlace and post-finishing, and the product has good dimensional stability. Fibrillation into microfibers is an important property of Lyocell fibers, especially when the wet expansion is mechanically affected (spun), and the fibrillation speed is increased with mechanical action or hydroentangling pressure. Fibrillation can greatly improve the fabric fullness, water absorption and appearance quality of the nonwoven fabric. Lyocell fiber spunlace can be widely used in disposable wipes, medical gauze, sanitary napkins, protective clothing, filter materials, coated fabrics, battery separators, ecological composite materials and other fields.
Lyocell fiber is used in wet-laid nonwoven fabrics. The application of Lyocell fiber in the field of synthetic leather fabrics and medical hygiene is very promising. Its application in wet-laid nonwovens has achieved initial success, and its advantages in battery separator materials, medical materials, filter materials, thermal-sensitive printing and typing wax paper substrates are increasing. Its main features are:
Excellent hydrophilicity and dispersibility. Since Lyocell fiber is a kind of cellulose fiber, its characteristics in water are the same as those of plant cellulose fiber, which overcomes the defects of poor residual water and difficult dispersion of synthetic fiber, and overcomes the stickiness of viscose fiber to disperse the forming process. Lack of difficulty;