Processing technology of function additive for surface sizing of food contact paper and gelatinization device

Abstract

The invention discloses a processing technology of a function additive for surface sizing of food contact paper and a gelatinization device. The processing technology comprises the following steps: using needle leaf wood and broadleaf wood as principal raw materials, wherein a fiber matching ratio of the needle leaf wood and the broadleaf wood is that the needle leaf wood is 75%-85% and the broadleaf wood is 15%-25%, performing free-state mixing and beating on the needle leaf wood and broadleaf wood raw materials, and performing sieving treatment, surface sizing and drying operation on the rawmaterials. The processing technology is capable of, through technological improvement, and through the designed gelatinization device, performing gelatinization treatment on modified oxidized starch,and mixing and stirring the environment-friendly oil-proof additive and the gelatinized modified oxidized starch. While a material is taken again, through cooperative use of internal lifting device and adjusting component thereof, the mixed material is discharged and the residual mixed material on an inner wall of a tank is scraped conveniently, and the interior of the tank is cleaned conveniently.

Description

technical field [0001] The invention relates to the technical field of production and processing of food contact paper, in particular to a processing technology of functional additives for surface sizing of food contact paper and a pasting device. Background technique [0002] In the forming process of paper for food contact, increasing the degree of beating can reduce the porosity of the paper surface, improve the anti-penetration function of the sheet, and make the paper have liquid resistance, but improving the oil resistance of the paper through beating not only consumes a lot of energy, but also produces paper. Seersucker paper defects are prone to occur, so the surface sizing technology is used to reduce the porosity of the paper and improve the water and oil repellency of the paper. However, the functional additives need modified oxidized starch and environmentally friendly oil-repellent additives in the process of processing Compound sizing, adding the oil-repellent ...

AI Technical Summary

Problems solved by technology

[0002] In the forming process of paper for food contact, increasing the degree of beating can reduce the porosity of the paper surface, improve the anti-penetration function of the sheet, and make the paper have liquid resistance, but improving the oil resistance of the paper through beating not only consumes a lot of energy, but also produces paper. Seersucker paper defects are prone to occur, so the surface sizing technology is used to reduce the porosity of the paper and improve the water and oil repellency of the paper. However, the functional additives need modified oxidized starch and environmentally friendly oil-repellent additives in the process of processing Compound sizing, adding the oil-repellent additive to the modified oxidized starch that has been gelatinized. At this time, it is necessary to put the modified oxidized starch into the gelatinization tank for gelatinization treatment, and then mix the After the existing gelatinization tank is gelatinized, the gelatinized matter inside cannot be taken out effectively, and it is inevitable that a part will adhere to the inner wall of the gelatinized tank, which will affect the next gelatinization and waste the gelatinized matter , therefore, we propose a processing technology of functional additives for surface sizing of food contact paper and pasting device

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