| 摘要 |
<p>This invention relates to paperboard packages or cartons suitable for distributing, marketing and heating prepared food products. Such structures of this type, generally, include a coating which is mass stable below 400 degree F, has chloroform-soluble extratives not exceeding 0.5 mg/in. of a food contact surface when exposed to a food simulating solvent of 150 degree F for two hours and is flexible enough to withstand conventional scoring in a cross-direction with a 2 point male rule and a 0.062 inch channel while sustaining a crack length ratio of no greater than 0.1.</p> |
