Method of packing bamboo, wood and stone carving with heat shrinked film and preserving after radiation

Abstract

The method of packing bamboo, wood and stone carvings with heat shrinked film and preserving after radiation relates to the application of atomic energy technology and handcraft preservation. Bamboo, wood and stone carvings are first packed with heat shrinked film, then heated for the film to shrink, and finally irradiated with Co-60 gamma ray in the dosage of 5-8kGy or electronic ray of 9-10 MeV to reach the aim of killing insects and preventing mildew before preservation at normal temperature without damage the package. The said method can reach a preservation period as long as 10 years. The heat shrinked film may be replaced with common polymer film, such as polyethylene film, in relatively low cost.

Description

technical field [0001] Application of atomic energy science and technology, radiation processing field. China Book Classification Number TL99, Subject Classification Number 590.55. Background technique [0002] Bamboo, wood, and nuclear carving handicrafts are high-end and expensive. Improper preservation will cause pests to invade, or eggs hidden inside may grow and develop, or the surface may be infected by microorganisms such as mold, losing ornamental value and causing losses. [0003] The traditional method of killing insects and preventing mildew is to use chemical protective agents, as reported by Liu Liang in the 5th issue of "Southeast Culture" in 2004, using chemical drugs for brushing and fumigation, the effect is not long-lasting, and it cannot kill the insects that penetrate into the interior of the handicraft. 1995.01.18 patents such as Gao Ruyun (CN1097349) kill bamboo and wood product pests with a kind of high-frequency electromagnetic wave, and its effect c...

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Problems solved by technology

The shortcomings of this article are 1. In principle, it is proposed that irradiation can cure insects, which has no practical value; 2. There are many types of such pests, including beetles, powder beetles, grain robbers, guogong insects, tobacco beetles, naked spider beetles, and silverfish , termites, etc. All kinds of pests have different sensitivities to radiation. The lethal dose of beetle beetle pests (referring to the death of irradiated pests within 7 days) is above 2kGy, the 30-day delayed lethal dose is 1.2kGy, and the sterile dose is 0.8kGy, so the paper proposes 0.6 The kGy irradiation dose is obviously low, and the unevenness of the irradiation dose is not mentioned, and the process dose cannot be determined; 3. The problem of irradiation prevention and control of mildew on the surface of such handicrafts and the re-contamination of pathogenic bacteria and insect pests after irradiation insecticide are not raised. ; 4. Also did not propose a reasonable packaging law

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