| 摘要 |
<p>A wrapping material which is heat-bondable on both surfaces, and heat-shrinkable and gas-barring, if desired, so as to wrap an article in the form of a cylinder in such manner that overlapping parts of the material are heat-bonded to each other as at a pasted part of an envelope, and open parts formed at both ends of a line of pasted part are sealed by heat-bonding, when the article is to be overlapped, whereby the package thus formed is tough at heat-bonded pasted part, free of liquid leakage, not conspicuous in surface roughness, looks neat owing to absence of bent parts at both sealed ends, is excellent in strength and appearance at sealed parts, and, after all, is high in commercial value. When the wrapping material is not only self-adhesive but heat-bondable at a temperature of heat-shrinking treatment and exposed to an atmosphere of heating for heat-shrinking after subjected to temporary bonding by self-adhesiveness of the material, a completely heat-bonded package can be obtained by the heat-shrinking treatment without an additional application of heat-bonding treatment to said temporarily bonded parts.</p> |
