Corrugated board score line cracking control method

Abstract

The invention discloses a corrugated board score line cracking control method. The corrugated board score line cracking control method comprises the following steps that a production raw material of corrugated boards is chopped, and then fed into a pulping machine for pulping after being subjected to high-temperature stewing; pulp manufactured by the pulping machine is made into corrugated medium,and the manufactured corrugated medium is subjected to pasting through a pasting machine; and the corrugated medium subjected to pasting and corrugated panels are bonded together so that the corrugated boards can be obtained. According to the corrugated board score line cracking control method, the water content of a corrugated case is strictly controlled, the folding resistance of corrugated lining paper and the stiffness of the paper boards are kept, the score line cracking possibility of the corrugated case is reduced, in addition, the flat compression strength of a paper board core is controlled, accordingly, the toughness of the lining paper is maintained, the situation that the lining paper is prone to being damaged during scoring, and corrugated case score line cracking occurs is avoided, the corrugated case percent of pass is increased, influence of moisture variation on the corrugated boards is reduced, the strength of the corrugated case is improved, and the better application prospect is brought.

Description

technical field [0001] The invention relates to the field of corrugated cardboard production methods, in particular to a control method for corrugated cardboard size cracking. Background technique [0002] The cracking phenomenon of the inner paper at the crease line of corrugated cartons during processing, folding, packing and stacking is called size cracking, which seriously affects the appearance of cartons and is one of the major quality defects of cardboard. The development of people's living standards continues to improve, the circulation of goods is increasing, and the demand for corrugated boxes is also increasing, so more and more attention is paid to the size of corrugated cardboard. Corrugated boxes are used in dry weather. , the problem of size explosion has troubled many carton companies. It not only seriously affects the quality of cartons and causes a sharp increase in the scrap rate, but also delays the delivery date, causing economic losses to the company. M...

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Problems solved by technology

[0002] The cracking phenomenon of the inner paper at the crease line of corrugated cartons during processing, folding, packing and stacking is called size cracking, which seriously affects the appearance of cartons and is one of the major quality defects of cardboard. The development of people's living standards continues to improve, the circulation of goods is increasing, and the demand for corrugated boxes is also increasing, so more and more attention is paid to the size of corrugated cardboard. Corrugated boxes are used in dry weather. , the problem of size explosion has troubled many carton companies. It not only seriously affects the quality of cartons and causes a sharp increase in the scrap rate, but also delays the delivery date, causing economic losses to the company. Moreover, the existing production process of corrugated boxes None of them considered the impact of size cracks on corrugated boxes, and neither reduced the generation of corrugated cardboard cracks. Therefore, we propose a control method for corrugated board size cracks

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