Technical characteristics and classification of non-woven fabrics

Non-woven fabric (non-woven fabric) is a kind of fabric that does not need to be spun and woven. It just aligns or randomly arranges textile short fibers or filaments to form a web structure, and then uses mechanical, thermal bonding or chemical Reinforced by other methods. To put it simply: it is not interwoven and knitted together one by one yarn, but the fibers are directly bonded together by physical methods, so when you get the sticky scale in your clothes , You will find that it is impossible to draw out the thread ends. Non-woven fabric breaks through the traditional textile principle, and has the characteristics of short process flow, fast production speed, high output, low cost, wide use, and multiple sources of raw materials.


Its main uses can be roughly divided into:


(1) Medical and sanitary cloths: surgical gowns, protective clothing, disinfection wraps, masks, diapers, sanitary napkins, etc.;


(2) Home decoration cloth: wall cloth, table cloth, bed sheet, bedspread, etc.;


(3) Follow-up cloth: lining, fusible interlining, wadding, shaped cotton, various synthetic leather base cloth, etc.;


(4) Industrial cloth: filter material, insulating material, cement packaging bag, geotextile, covering cloth, etc.;


(5) Agricultural cloth: crop protection cloth, seedling raising cloth, irrigation cloth, thermal insulation curtain, etc.;


(6) Others: space cotton, thermal insulation materials, linoleum, cigarette filters, tea bags, etc.


Technical characteristics and classification of non-woven fabrics


(1) Technical characteristics of non-woven fabrics (non-woven fabrics):


1. Interdisciplinary


2. Short process flow, high labor productivity


3. High production speed and high output


4. Wide range of applicable fiber materials


5. There are many technological changes and technical textiles have obvious characteristics


6. Large scale of funds and high technical design requirements


Here, we have made a comparison of the production speed of various equipment, and everyone has a comparative understanding of the production speed of non-woven fabrics (non-woven):


(2) Classification of non-woven fabrics (non-woven fabrics)


1. According to the nature of the production process, it can be divided into three categories: dry method, polymer extrusion method, and wet method. At present, the most domestic and foreign production processes are dry method and polymer extrusion method. .


2. According to the reinforcement technology


(1) Spunlace reinforcement: Spunlace cloth;


(2) Needle punched reinforcement: Needle punched cloth;


(3) Hot rolling mill bonding: spunbonded cloth, hot rolled cloth;


(4) Hot air bonding: hot air cloth;


(5) Steam puncture consolidation: steam puncture cloth;


(6) Chemical bonding, which is also specifically divided into: dipping method, spraying method, foam