Sterilization by down radiation

Abstract

The invention is concerned with the method of irradiation serilization for feather, that is, setup the irradiation facility with certain operation parameter, the material pack contents a standard amount of feather is sent through the irradiation facility for irradiation serilization process by the transmission system. The invention concentrates on systemic managing irradiation machin, which serilizes bactirum under the perfect packing prevents infection with no leftover; it is not only destroy bactirum copelely with high speed process, low managing cost with high quality performance, and also operating eaily, saving the power supply.

Description

technical field [0001] The invention relates to a method for sterilizing down, in particular to a method for sterilizing down by using gamma rays. Background technique [0002] According to the data released by the state, China has become the world's largest producer, exporter and consumer of down and its products. As a natural warm product, down and feather have irreplaceable advantages for other similar products. Product safety, hygiene, sterilization and other issues also have higher requirements. [0003] Relevant international documents stipulate that the limits of four kinds of bacteria in down filling materials are as follows: A mesophilic aerobic bacteria shall not exceed 1×10 6 c.f.u / g; Class B Streptococcus faecalis does not exceed 1×10 2 c.f.u / g;C Clostridium sulfite not exceeding 1×10 2 c.f.u / g; D does not appear in Salmonella 20g. Therefore, down products, especially those exported to Europe, America, Japan and other countries and regions, must be sterilized...

AI Technical Summary

Problems solved by technology

[0004] There are three main traditional sterilization methods: one is ultraviolet sterilization, the other is reagent sterilization, and the third is heat sterilization. Although these methods have been used by people, their safety and reliability have also been recognized by practice, but their respective flaws are still insurmountable

[0005] 1. Ultraviolet sterilization: It has a small penetrating ability, and the disinfection effect is not good in places where ultraviolet rays cannot be irradiated. high

[0006] 2. Reagent sterilization: Fumigation with formaldehyde is troublesome to operate, takes a long time to fumigate, has secondary pollutants, and has certain harm to the human body. It takes 8 hours to fumigate formaldehyde once, and the residue adheres to the walls of the clean room and the equipment. Surfaces, requiring wiping, exhibit a substantial increase in suspended particle counts within a few days of disinfection

[0007] 3. Heat sterilization: (dry heat and damp heat) high temperature and high energy consumption, some items should not be heated

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