| 摘要 |
<p>The invention relates to a cellulose-based package material having an increased adsorption capacity and a process for its manufacture. According to the invention the package material is treated in a permanent manner with an aqueous suspension containing a mixture of fulvic acid and humic acid or salts thereof in the wet technological phase (step) of the paper manufacture. The treatment is carried out in the substance or on the surface of the package material during processing. The wet product obtained can subsequently be dried to a paper, paper board, cardboard, corrugated paper or other cellulose-based laminated product. The package material treated according to the invention is capable to inhibit the enzyme synthesis occuring during the ripening of fruits. Thus, they are useful mainly for prolonging the storage life of fruits and vegetables.</p> |
