Printed nonwovens are a young and promising new field in the textile industry. China's printed nonwoven industry started late, but is developing rapidly. At the early stage of development, nonwoven fabrics were mainly used in the garment industry as auxiliary materials. With the rapid development of social economy and science and technology, new products and technologies of nonwoven fabrics are emerging and changing day by day, and the application range is getting wider and wider. Next I'll introduce the reasons why printed nonwovens can't be reused.
The exact name of printed nonwoven fabric should be nonwoven or nonwoven fabric. China's national standard GB/T5709-1997 "textile nonwoven terminology" is the directional or arbitrarily arranged fibers of woven fabrics, by friction, wrapping, bonding or a combination of these methods, defined as mutually combined sculpture, fiber and cotton mat. It does not include paper, woven, knitted, or cluster fabrics. Because it is a fabric formed without spinning fabric, it can only be formed by orienting or randomly arranging textile short fibers or long threads to form a fiber structure, and then reinforced by mechanical, thermal bonding, chemical and other methods. With moisture-proof, breathable, elastic, weight, non-combustible, easily decomposed, non-toxic, irritating, colorful, inexpensive, recyclable, etc., the application areas are very wide.
In industrial materials, printed nonwoven fabric has the characteristics of filtration efficiency, insulation, heat insulation, acid resistance, alkali resistance, tear resistance, etc. It is mostly used in the manufacture of filter media, sound insulation, electrical insulation, packaging, roofing, abrasives, etc. In the daily necessities industry, it can be used as clothing, lining, materials, curtains, wall decoration materials, diapers, travel bags, etc. It can be used in medical and health products for surgical gowns, patient gowns, masks, sanitary belts, etc.
1.Printed nonwoven sterile barrier performance is lost after use
Research shows that the preservation time of sterile articles is closely related to the thickness of nonwoven fabric (g/m2) and the number of layers of package days. Disposable nonwoven packaging materials appear a series of high-temperature steam sterilization, chemical cleaning after fiber structure deformation, package hole thinning, thickness decline, the naked eye is not too obvious small hole, resistance rate suddenly decreased or loss of resistance performance. Requirements for Sterilization Technical Specification packaging materials: sterilization factors need to be effective throughout the sterilization process. Provide a bacterial barrier to maintain sterility during storage. Reuse of disposable packaging materials packaging apparatus, sterilization after storage does not reach the safe expiration date.
2. After sterilization of printed nonwoven fabric, the microscopic properties inside the nonwoven fabric change
Printed nonwoven packaging materials are generally SMS composite nonwoven. The main material of this nonwoven fabric is polypropylene, which is processed by a variety of processes through melting and spinning process, and the microstructure is micro plastic fiber. Shrinkage after encountering high temperature is a characteristic of plastic items. There really is no such thing as a high temperature resistant plastic. High temperature is also a relative concept, so nonwovens can react to shrinkage accordingly on a microscopic level. After high-temperature sterilization, the fine plastic fibers of nonwovens undergo a certain degree of shrinkage, and after sterilization on use, nonwovens are more brittle and less flexible than before sterilization. Non-woven packaging materials before and after the change in performance is one of the reasons why non-woven fabric can only be used once. This is the reason why printed nonwoven fabric can not be used repeatedly for everyone, for more information please feel free to contact us!
Zhejiang Chenyang Nonwoven Technology Co., Ltd. is located in the famous historical and cultural city - Lin'an, which has a unique location advantage. Ltd. is a professional production of non-woven products, to provide customers with solutions for the production of industry and trade as one enterprise. Chenyang focus on the non-woven industry for more than 20 years, is a diversified large-scale professional production base in China, set non-woven production and finished products processing plant in one, based on high grade and high-end market, annual production of non-woven fabrics more than 6000 tons, mainly exported to the United States, Germany, Japan, Spain, Italy, Britain, South Korea, Australia, Canada and dozens of countries.
At present, the company covers an area of 18,000 square meters, has two spunlace nonwoven material production lines, five 2,000 square feet of purification workshop, the company's products are divided into two series of beauty class and cleaning class, is one of the few domestic production and processing of one-stop enterprise. The company is one of the few enterprises in China to produce and process the products in a single line. We control the quality from the raw materials to the products. The company has passed ISO9001, BSCI certification, and cooperated with many famous enterprises at home and abroad.