A kind of pineapple hemp pulp and preparation method thereof

Abstract

The invention discloses pineapple fiber pulp and a preparation method thereof. Pineapple fibers are taken as raw materials of the pineapple fiber pulp. The preparation method comprises the following steps: preprocessing, integrating stewing and bleaching, washing by a vacuum washer continuously beating, carrying out pressure sieving twice, carrying out acid treatment, washing by water, and pulping to obtain the pineapple fiber pulp. According to the preparation method, the pineapple fiber pulp is prepared from the pineapple fibers; the stewing and bleaching processes are integrated, so that the operation is simple and convenient, the production cycle is remarkably shortened while the stewing and bleaching quality is guaranteed, the production process is simple, the flow process is short, the energy consumption is low, indexes such as CODcr (chemical oxygen demand) in a stewed black solution are remarkably lowered in comparison with those in a conventional process, and the wastewater treatment cost is reduced; prepared regenerated cellulose viscose fibers have excellent performance of general viscose fibers, fabrics of the regenerated cellulose viscose fibers remain the bacterial resisting and inhibiting performance of raw hemp, and thus the commercial exploitation value of the pineapple fibers is improved.

Description

technical field [0001] The invention relates to a pulp for regenerated cellulose fibers, in particular to a pulp for producing regenerated cellulose fibers using pineapple hemp as a raw material. Background technique [0002] Pineapple is widely planted in tropical countries and regions, and people mainly use its fruit. A large number of pineapple plant leaves become agricultural waste and are burned, which not only causes waste of resources, but also causes environmental pollution. With the rapid growth of the demand for natural fibers in the world market, the waste of pineapple hemp resources has been widely concerned. Many countries, such as Japan, the United States, India, the Philippines and my country's Taiwan, have begun to develop and utilize pineapple hemp fibers and have achieved some commercial success. As a result, my country also started research on the extraction and application of pineapple hemp fiber in the late 1990s. After degumming, medium and low-grade ble...

AI Technical Summary

Problems solved by technology

[0003] (1) The single fiber length of pineapple hemp fiber is very short, the single fiber length is 3-8mm, and the complete degumming method cannot be used, and the semi-degumming method must be used to ensure that there is a certain amount of residual glue, and the very short single fiber is bonded to meet the requirements of spinning. The long fibers required by the yarn process, so the uniformity of the fibers will be difficult to guarantee

[0004] (2) Using chemical degumming method, serious environmental pollution, low product quality level, high production cost

[0006] (4) Due to different varieties and different origins, the properties of pineapple hemp fibers are different, which has a great impact on processing

[0007] Due to the existence of the above problems, the application of pineapple fiber in some fields such as clothing, especially underwear, is limited. Therefore, the commercial value of the development and application of pineapple is not high at present.