发明名称 |
Thermo-sealing control method and packaging for resealable packaging |
摘要 |
A packaging and method for controlling the seal strength between two cooperating thermo-sealable films at predetermined sealing portions, where a predetermined amount of heat is applied over a predetermined period of time. The resulting packaging is resealable after the first separation of two surfaces. The strength of the seal controlled by defining the number and dimensions of a plurality of restricted areas without a material cover that is resistant to the thermo-seal effect. The restricted area can be defined with a plurality of dots of predetermined selected shapes and dimensions. The resulting article facilitates the rupture of the packaging along a predetermined path. With this process, a fixed predetermined heat and residency time can be chosen and the seal strength can still be varied in different areas of a packaging. Non-sealable microdots with a predetermined amount of adhesive deposits also covered by a polypropylene powder deposit permit its resealing. |
申请公布号 |
US8580067(B2) |
申请公布日期 |
2013.11.12 |
申请号 |
US201213403000 |
申请日期 |
2012.02.23 |
申请人 |
BERTAZZO TERUEL NELSON LUIS;CHROMA PAPER, LLC. |
发明人 |
BERTAZZO TERUEL NELSON LUIS |
分类号 |
B29C65/02;B29C65/48;B32B37/14;B32B38/10;B32B38/14;C08J5/18;C09J5/02 |
主分类号 |
B29C65/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|