Apparatus and method for heat treatment of heat shrinkable film
AssigneeFuji Seal International, Inc.
InventorsAkira Uetsuki, Yasuyuki Kawauchi
Life of this patent
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Abstract
An apparatus for heat treatment of a heat shrinkable film includes a steam generation apparatus that generates steam, a heated air generation apparatus that generates heated air not lower in temperature than steam generated in the steam generation apparatus, a mixed gas generator that generates mixed gas not lower in temperature than steam generated in the steam generation apparatus by mixing steam generated in the steam generation apparatus and heated air generated in the heated air generation apparatus, a reheating apparatus that generates superheated steam by reheating mixed gas generated in the mixed gas generator, and a supply portion that supplies superheated steam generated in the reheating apparatus to a heat treatment chamber.
Claims9
An apparatus for heat treatment of a heat shrinkable film that allows, by heating and shrinking the heat shrinkable film with superheated steam, covering of a part or entirety of an article with the shrunk heat shrinkable film, the apparatus for heat treatment comprising:
- a heat treatment chamber into which the article to which a yet-to-be-shrunk heat shrinkable film is applied is loaded;
- and
- a superheated steam generation and supply apparatus that generates superheated steam and supplies superheated steam to the heat treatment chamber,
- the superheated steam generation and supply apparatus including
- a steam generation apparatus that generates steam,
- a heated air generation apparatus that generates heated air not lower in temperature than steam generated in the steam generation apparatus,
- a mixed gas generator that generates mixed gas not lower in temperature than steam generated in the steam generation apparatus by mixing steam generated in the steam generation apparatus and heated air generated in the heated air generation apparatus,
- a reheating apparatus that generates superheated steam by reheating mixed gas generated in the mixed gas generator, and
- a supply portion that supplies the superheated steam generated in the reheating apparatus to the heat treatment chamber.
A method of heat treatment of a heat shrinkable film comprising:
- generating, by mixing steam and heated air not lower in temperature than steam, mixed gas not lower in temperature than steam;
- generating superheated steam by reheating the mixed gas;
- and
- covering, by heating a yet-to-be-shrunk heat shrinkable film applied to an article with the superheated steam, a part or entirety of the article with the shrunk heat shrinkable film.
Dependencies are inferred from the claim text.