The plant fibers used in needle punch nonwoven fabrics are mainly cotton and jute, and their main chemical constituents are cellulose. Labor protection clothing produced from cotton and jute as raw materials.
Packaging bags and military fabrics are early industrial needle punch nonwoven fabrics, which are simple and low-grade products. With the development of the national economy, the proportion of plant fiber industrial fibers will gradually decline, replaced by synthetic fibers.
Chemical fibers refer to fibers obtained by chemical treatment and mechanical processing. Chemical fibers can be divided into regenerated fibers, synthetic fibers, and needle-punched non-woven fabrics according to the different processing methods of the raw materials used.
Needle punch nonwoven fabrics use natural polymers such as cellulose as raw materials and is made by chemical methods. Viscose fibers are regenerated cellulose fibers, which are almost entirely composed of cellulose.
The early needle punch nonwoven fabrics were all filaments, called viscose filaments, which could also be cut into short fibers, including cotton-type viscose fibers and wool-type viscose fibers. Viscose silk was often used as raw material in the early weaving of silk for aviation parachutes.
In highways (including temporary roads), railways, embankments, earth-rock dams, airports, sports fields and other projects, it is used to strengthen weak foundations and at the same time play the role of isolation and filtering. Geotextiles are placed on the bank slopes of rivers, rivers, lakes and seas to prevent turbidity by running water.
Used as reinforcement in retaining wall backfill, or used to anchor retaining wall panels. Needle punch nonwoven fabrics are used to build wrapped retaining walls or abutments. Reinforce flexible pavements, repair cracks on roads, and prevent road reflection cracks.
Increase the stability of gravel slopes and reinforced soil to prevent soil erosion and freezing damage of soil at low temperatures. The isolation layer between the road ballast and the roadbed, or the isolation layer between the roadbed and the soft foundation.
The use of needle-punched non-woven bags is worthy of our attention. When using non-woven bags, we should pay attention to the weight of storage, preferably within the weight that non-woven bags can bear, so the bag of the planowoven film covered bag can be avoided from being broken or the bottom of the bag can be broken, and its service life can be prolonged.
Plastic bags will begin to gradually withdraw from the packaging market for items, replaced by non-woven shopping bags that can be reused. Compared with plastic bags, needle punch nonwoven film-coated bags are easier to print patterns, and the color expression is more vivid. In addition, it can be used repeatedly. You can consider adding more exquisite patterns and advertisements to non-woven shopping bags than plastic bags, because the loss rate of repeated use is lower than that of plastic bags, which leads to more savings in needle punch nonwoven shopping bags, and bring more obvious advertising benefits.
There are also planonwoven bags that can give you many functions, that is, in this case, we will prefer planonwoven bags.