| 摘要 |
With the method according to the invention, an absorption device (14) including support material (8) and absorption material (12) is manufactured especially for preventing oil damages. In the invention, a support material net maintaining the cohesion of the absorption material is formed of the support material by means of heat treatment. The support material and the absorption material are mixed together in a specified ratio for a substantially homogeneous mixture. Of this mixture, a blanket is formed on a base which blanket is heated to a temperature in which the support material softens and adheres to the absorption material. When the support material cools down, it hardens and forms a support material net maintaining the cohesion of the mixture. Alternatively, the absorption device can be manufactured by first forming a net-like gauze (10) of the support material on which a layer of absorption material is proportioned. After this, the gauze is folded to a layer-like structure (13) and heated to a temperature in which the support material softens and adheres to the absorption material. When the support material cools down, it hardens forming a support material net. On the outer surface of the absorption device, it is possible to fasten a support gauze, if desired, which further improves the cohesion of the absorption device. The support material can include natural fibre material, textile fibres, polyester and/or polypropylene. The absorption material is advantageously fibrous or fine-grained natural material, such as peat or cellulose fibre. |
