发明名称 |
HEAT-SEALED STERILISED PRODUCT PACKAGE, PACKAGING MATERIAL FOR THE SAME AND USE OF THE PACKAGING MATERIAL |
摘要 |
The invention relates to a polymer-coated heat-sealable packaging material, to a heat-sterilised package formed from this and to the use of the packaging material. The material comprises a fibre base ( 4), which is e.g. a packaging board made of bleached pulp, and polymer heat-seal layers (1, 9) located on both sides of this. In accordance with the invention, the package comprises, outside the fibre base, a polymer coating layer (2), which contains white pigment for covering the fibre base from sight, and a second coating layer (8), which contains light-absorbing pigment. A coating layer pigmented grey inside the fibre base, for instance, provides a light shield for the packaged product. The absorbent black pigment may also be located outside the fibre base underneath a white layer in order to stabilise the brightness of the material. The package may be e.g. a food package heat-sterilised in an autoclave, in which yellowing of the fibre-based material has been avoided by means of a white pigment. |
申请公布号 |
CA2513151(C) |
申请公布日期 |
2011.12.06 |
申请号 |
CA20042513151 |
申请日期 |
2004.02.23 |
申请人 |
STORA ENSO OYJ |
发明人 |
PENTTINEN, TAPANI;NEVALAINEN, KIMMO;HEISKANEN, ISTO;SAVOLAINEN, ANTTI;KUUSIPALO, JURKKA;KOREASALO, ESA;LAIHO, ERKKI;SAINIO, MARKKU;LEHIKOINEN, TOMMI |
分类号 |
B65D65/40;B32B27/08;B32B27/10;B32B27/20;B65D5/56;B65D81/24;B65D81/30;B65D81/34 |
主分类号 |
B65D65/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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