| 摘要 |
METHOD OF MAKING PAPER A method of making adjustments at the headbox of a web-forming machine to provide a web of relatively uniform density and layer height utilizes a headbox with a plurality of transverse sections, each of which is provided with a web material at a variable flow rate and a variable consistency. The method includes the steps of measuring the layer height profile of the web, measuring the density profile of the web, and comparing a portion of the layer height profile with a corresponding portion of the density profile to determine whether there are corresponding deviations in the profiles. If there are deviations in the layer height and density profiles, the consistency and flow rate of the web material provided to the headbox are adjusted, based on deviations in the layer height profile and the stock density profile and whether the deviations correspond with each other, in order to achieve a uniform stock density profile and layer height profile. The web is preferably dewatered by providing it to a dewatering apparatus, pressed and dried to provide a finished web, and rolled into a roll. The method may be used in connection with a paper machine to form a paper web.
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