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From three aspects of corrugated board thickness loss!
by：Lisson
2020-11-17
From three aspects of corrugated board thickness loss!
From three aspects of corrugated board thickness loss!
as to reduce the loss of the thickness of the corrugated board, to control from the following aspects: the first to produce a specified thickness of single-sided corrugated, first of all should be fully integrated, when rolling corrugated second to avoid in front of the adhesive backing paper shapes single-sided corrugated corrugated tile core rebound effect; The second in the subsequent processing to reduce or even avoid the deformation of the corrugated board.
a, the thickness of the corrugated board first depends on the corrugated roller tooth deep 'congenital' conditions. Once the corrugated molding were unable to increase the thickness. Up and down when the corrugated roller are parallel, roller pressure between, or after the corrugated roll wear and tear, or a foreign body in the stare blankly groove clamp, will affect the complete molding corrugated corrugated will produce the required thickness of corrugated board.
2, complete molding corrugated copper needs to have certain conditions, such as copper core paper, such as temperature and water. In corrugated paper machine speed, corrugated roller's temperature to heat the base paper alone is not enough. Need for corrugated paper first to the heat, if necessary, to reduce the speed to improve the copper temperature of the corrugated paper. When the corrugated too damp, copper cannot very good shape, and affect the bonding effect. Lack of rigidity, wet corrugated base paper that corrugated cannot stand. In a very small pressure will shrink and increase height loss. Too dry and vice corrugated base paper, paper fiber plasticity is small, easy to appear when copper high stare blankly is insufficient, the so-called low stare blankly. And easy rebound after forming, fast curing after coating, interleaving paper can not be firmly stuck. To the corrugated injection of low-pressure high-temperature steam at this moment, to a certain moisture into the paper fibers, increase its plasticity can be fully integrated.
3, copper in the process of the forming of corrugated board in the subsequent processing under pressure, make corrugated direction along the stare blankly high deformation even be overwhelmed, also can destroy the thickness of the cardboard.
（ 1) Is the role of guide paper mill good corrugated core paper before gluing and interleaving paper adhesive to make it fit the corrugated roller tooth profile, to maintain the correct corrugated shape. But when conducting paper wear, skew or not at that time, the location will make it with the corrugated roll gap smaller and make the good molding corrugated flattening deformation.
（ 2) In a double gluing machine, floating roller ( Ride the roller) With the rubber roller is too small will not parallel or clearance flattening corrugated. To adjust its clearance, after introducing single-sided corrugated double computer word parking situation, with the hand a little hard to turn the floating roller is its clearance can be thought of as appropriate.
（ 3) In the joint, Facing) On board according to the paper properly configure the number of gravity roller press. Gravity roller with hot plate to parallel, turn to be flexible. Hot plate to keep level, and its surface to clean the flat, can not have dirt. Cotton tape to maintain its clean and air permeability, improve the joint, these are vital to ensure that the thickness of the cardboard.
（ 4) In corrugated cardboard into the cutting section, it should be adjusted according to the paper feed roller pressure of weight hammer or pressurized structure, make the weight of the feed roller press fit. If the force of the feed roller press down small, cardboard into the skid, influence to cut off the size accurately. If the pressure can damage the thickness of the cardboard. In the double cut, cardboard be biased towards one side, the feed roller under the pressure of power imbalance, will pressure thin cardboard, application of bolt will feed roller locked so that it is parallel to the cardboard. Conversion table packaging printing knowledge
as to reduce the loss of the thickness of the corrugated board, to control from the following aspects: the first to produce a specified thickness of single-sided corrugated, first of all should be fully integrated, when rolling corrugated second to avoid in front of the adhesive backing paper shapes single-sided corrugated corrugated tile core rebound effect; The second in the subsequent processing to reduce or even avoid the deformation of the corrugated board.
a, the thickness of the corrugated board first depends on the corrugated roller tooth deep 'congenital' conditions. Once the corrugated molding were unable to increase the thickness. Up and down when the corrugated roller are parallel, roller pressure between, or after the corrugated roll wear and tear, or a foreign body in the stare blankly groove clamp, will affect the complete molding corrugated corrugated will produce the required thickness of corrugated board.
2, complete molding corrugated copper needs to have certain conditions, such as copper core paper, such as temperature and water. In corrugated paper machine speed, corrugated roller's temperature to heat the base paper alone is not enough. Need for corrugated paper first to the heat, if necessary, to reduce the speed to improve the copper temperature of the corrugated paper. When the corrugated too damp, copper cannot very good shape, and affect the bonding effect. Lack of rigidity, wet corrugated base paper that corrugated cannot stand. In a very small pressure will shrink and increase height loss. Too dry and vice corrugated base paper, paper fiber plasticity is small, easy to appear when copper high stare blankly is insufficient, the so-called low stare blankly. And easy rebound after forming, fast curing after coating, interleaving paper can not be firmly stuck. To the corrugated injection of low-pressure high-temperature steam at this moment, to a certain moisture into the paper fibers, increase its plasticity can be fully integrated.
3, copper in the process of the forming of corrugated board in the subsequent processing under pressure, make corrugated direction along the stare blankly high deformation even be overwhelmed, also can destroy the thickness of the cardboard.
（ 1) Is the role of guide paper mill good corrugated core paper before gluing and interleaving paper adhesive to make it fit the corrugated roller tooth profile, to maintain the correct corrugated shape. But when conducting paper wear, skew or not at that time, the location will make it with the corrugated roll gap smaller and make the good molding corrugated flattening deformation.
（ 2) In a double gluing machine, floating roller ( Ride the roller) With the rubber roller is too small will not parallel or clearance flattening corrugated. To adjust its clearance, after introducing single-sided corrugated double computer word parking situation, with the hand a little hard to turn the floating roller is its clearance can be thought of as appropriate.
（ 3) In the joint, Facing) On board according to the paper properly configure the number of gravity roller press. Gravity roller with hot plate to parallel, turn to be flexible. Hot plate to keep level, and its surface to clean the flat, can not have dirt. Cotton tape to maintain its clean and air permeability, improve the joint, these are vital to ensure that the thickness of the cardboard.
（ 4) In corrugated cardboard into the cutting section, it should be adjusted according to the paper feed roller pressure of weight hammer or pressurized structure, make the weight of the feed roller press fit. If the force of the feed roller press down small, cardboard into the skid, influence to cut off the size accurately. If the pressure can damage the thickness of the cardboard. In the double cut, cardboard be biased towards one side, the feed roller under the pressure of power imbalance, will pressure thin cardboard, application of bolt will feed roller locked so that it is parallel to the cardboard. Conversion table packaging printing knowledge
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