A pretreatment process of raw materials for the production of melt-blown non-woven fabrics

Abstract

The invention relates to a melt-blown non-woven fabric production raw material pre-treating process. The melt-blown non-woven fabric production raw material pre-treating process adopts a melt-blown non-woven fabric production raw material pre-treating device which comprises a workbench, an extruding mechanism and a receiving mechanism, the extruding mechanism is mounted at the upper end of the workbench, the receiving mechanism is arranged on the lower side of the right end of the extruding mechanism, and the lower end of the receiving mechanism is mounted on the upper end face of the workbench in a sliding fit mode. Melt-blown non-woven fabric production raw material pre-treating is conducted by adopting the design concept of an adjustable and controllable integrated structure, an operator can adaptively and accurately change a molten polymer extrusion port according to the bobbin size of a received polymer thread, and thus the overall application range of the device is enlarged.

Description

technical field [0001] The invention relates to the technical field of non-woven fabric production, in particular to a process for pretreatment of raw materials for melt-blown non-woven fabric production. Background technique [0002] Melt-blown non-woven fabrics use high-speed hot air to draw the polymer melt stream extruded from the spinneret hole of the die head, thereby forming ultra-fine fibers and collecting them on the condensed net curtain or roller. The fine fibers are randomly distributed and bonded together, and at the same time bonded to form a melt-blown non-woven fabric. The melt-blown non-woven fabric is mainly made of polypropylene, and the fiber diameter can reach 1-5 microns. Its appearance is white, smooth, Soft, with many voids, fluffy structure, and good wrinkle resistance. The ultrafine fibers with unique capillary structure increase the number and surface area of ​​fibers per unit area, so that the melt-blown cloth has good filterability, shielding, he...

AI Technical Summary

Problems solved by technology

[0003] 1. During the polymer extrusion process, the channel it passes through has no thermal insulation structure or the thermal insulation effect of the thermal insulation structure is poor. At this time, the molten polymer under high temperature is likely to freeze and solidify in the channel and cause blockage to the channel. , or the melting degree of the molten polymer is reduced so that the forming degree of the polymer stream is low, and at the same time, the unmelted polymer that reaches the temperature in the melting device is not removed in time;

[0004] 2. In each working cycle, it is necessary to manually replenish or pour polymer into the device. This method is likely to increase the labor intensity of workers and reduce work efficiency, and it is easy to cause the amount of polymer fed at one time to exceed the tolerance of the device and cause damage to no The shape of the spun fabric is affected, and the size of the polymer extrusion port of the same device cannot be changed, which reduces the overall application range of the device

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