A production process for forming non-woven fabrics
A production process and technology of non-woven fabrics, applied in filament/thread forming, filament forming treatment, textile/flexible product manufacturing, etc., can solve the problems of non-woven fabrics that are difficult to mix uniformly, and achieve enhanced strength and good tensile resistance Effect
Active Publication Date: 2022-07-08
北自所(常州)科技发展有限公司
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Problems solved by technology
[0005] In order to improve the problem that the various materials in the hopper are difficult to mix uniformly and cause local defects on the non-woven fabric, the application provides a production process for forming non-woven fabrics
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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[0050] Attached to the following Figure 1-5 This application will be described in further detail.
[0051] The embodiment of the present application discloses a production process for forming a non-woven fabric. refer to figure 1 and figure 2 , the production process includes the following steps:
[0052] Feeding: The raw materials such as the sliced polypropylene, additives, color masterbatch, and functional fibers are sent into the pulverizing and stirring device 1 to be pulverized into raw materials with smaller particle size. Additives are brighteners, softeners and compatibilizers, and the masterbatch can choose blue and green colors according to the design requirements of non-woven fabrics. 80 parts by mass of polypropylene, as well as 30 parts by mass of polypropylene fiber, 30 parts by mass of polyester fiber, 30 parts by mass of carbon fiber, 30 parts by mass of nylon chemical fiber, and 30 parts by mass of viscose chemical fiber can be used for reinforcing mo...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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The present application relates to a production process for forming a non-woven fabric, which relates to the technical field of non-woven fabric production, and includes the following steps: feeding, screw extrusion, metering, spinning, cooling, drafting, web forming, and hot rolling , winding. In the feeding step, a pulverizing and stirring device is installed to pulverize, stir, preheat and mix the raw materials, and an air cooling device is installed in the cooling step, and dry ice is used to cool the melt into filaments. The present application has the effect of making the melt formed by melting the raw materials more uniform by fully pulverizing, stirring and mixing the raw materials, so that the overall anti-pulling and tearing properties of the formed non-woven fabric are better and the local defects are less. In addition, the air cooling device and the method of cooling the melt with dry ice can reduce the contamination of the thread by external dust and impurities, and reduce the disturbance of the thread by the cooling process, thereby reducing the defects on the non-woven fabric or the defects of local excessive thickness.
Description
technical field [0001] The present application relates to the field of non-woven fabric production, in particular to a production process for forming non-woven fabrics. Background technique [0002] At present, non-woven fabrics, also known as non-woven fabrics, are composed of directional or random fibers, and are a new generation of environmentally friendly materials. Low price, recyclable and so on. Polypropylene (pp material) pellets are mostly used as raw materials, and are produced by a continuous one-step method of high-temperature melting, spinning, laying, and hot-pressing and coiling. It is called cloth because of its appearance and certain properties. [0003] In the related art, the production process of non-woven fabrics is as follows: feeding → screw extrusion → spinning → drafting → web forming → hot rolling → winding → slitting → finished product, that is, the raw materials are sucked into the hopper from the suction bin by the suction device. , and then e...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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IPC IPC(8): D04H1/544D04H1/541D01D1/06D01D1/09D01D5/08D01D5/088D01D13/00D01D13/02
CPCD04H1/544D04H1/541D01D1/065D01D5/08D01D5/088D01D1/09D01D13/00D01D13/02Y02P70/62
Inventor 寇东生张帆
Owner 北自所(常州)科技发展有限公司