What should I pay attention to when using cardboard?
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(1) Paper used to make hardcover (or wire-bound book) envelopes, light, loose, flat gray cardboard according to standard requirements
(2) The water content in the cardboard should be kept at around 8%, up to 12%.
(3) The paperboard with short production (or purchase) should be stored in one room and then used. Generally, it should be more than half a year. Because the new paperboard is more flexible and less flexible, it is easy to be deformed after cutting. After a certain time according to the correct storage method, the cardboard can be flat, neat and easy to process.
(4) The storage conditions and methods of paperboard are the same as those of paper, but pay attention to the normality and balance of water content in the upper and lower cardboard piles when dumping the warehouse, and the use of the license is not affected.
How to paste paperback book with cardboard
When the book back is pasted with a cardboard on the binding linkage production line, it is necessary to rewind and cut the book according to the length of the book. When hand-semi-mechanically pasting the book backing paper, first make the paper jam in a special container for 8 hours, then use the paper to cut the paper jam to the same length as the book length (the length of the book) or slightly longer than 10mm, and bundle the width. The book is about 10~20mm higher (depending on the depth of the reservoir, the thickness of each stencil) is placed in the heating reservoir, and a small amount of animal glue is added to heat the foam. After about 8 hours, the paper jam is cooked. use. The purpose of adding animal glue is to cut the hair without cutting the hair and stop the line.