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Application filed by Yuenfoong Yupaper Nfg Co LtdfiledCriticalYuenfoong Yupaper Nfg Co Ltd
Priority to TW087100510ApriorityCriticalpatent/TW341553B/en
Application grantedgrantedCritical
Publication of TW341553BpublicationCriticalpatent/TW341553B/en
A process for producing an enclosed container capable of having symbols in the interior thereof, which comprises the following steps: A. providing the internal walls of an enclosed container; B. attaching an isolation layer on the internal walls of the enclosed container; C. printing a symbol on the isolation layer; D. covering a protective layer on the symbol; and E. contacting the internal wall with another internal wall, and heating and melting the isolation layer between the two internal walls and further joining the two internal walls; in which the melting point of the protective layer is higher than the melting point of the isolation layer, so that when the two internal walls are joined together, the protective layer can protect the symbol and prevent the symbol from contacting with an object in the enclosed container.
TW087100510A1998-01-151998-01-15An enclosed container capable of having symbols in the interior thereof
TW341553B
(en)