| 摘要 |
PURPOSE: A sealed-type synthetic resin envelope is provided to facilitate easy opening and prevent from being torn while opening the envelope. CONSTITUTION: An envelope(10) contains a vertical adhesive part on the front part of the envelope. An upper adhesive part(13) and lower adhesive part(15) are formed horizontally on the upper and lower part of the envelope. A part of a string(17) is placed and protruded on the upper adhesive part. The part of the string is exposed to the outer part of the synthetic resin envelope for a user to pull. The string has a higher melting point than that of the inner surface material of the synthetic resin envelope. |
