Bound book paper, in addition to the common letterpress, offset, coated paper, but also includes newsprint. To ensure binding quality, different papers should be treated differently.
1. Letterpress paper
a. You can use any kind of folding machine for folding, and you can fold up to 40% (draw). When the manual folding is folded by 40%, you must cut the opening on the 3rd fold of the fold to remove the air inside the book. Guaranteed folds are folded without any wrinkles.
b. The maximum thickness of iron wire staples is 15mm, the minimum thickness is O.5mm, and the wire diameter is 0.5~0.84mm.
C. The range of adhesives used for relief paper is wide. Letterpress paper is easy to adhere, and the viscosity of the adhesive is easy to adjust.
d When cutting, the angle α of the knife is the same as that of newsprint.
2. Offset paper
a. When hitting a page, any kind of method can be used to achieve a good knock-down effect.
b. Any folding machine can complete a good folding effect, especially suitable for high-speed folding.
C. Offset paper books and books, the design should be based on three fold-based (never design four-fold page). It is best to use two packs of 8Og/m2 or more), because the thickness of the offset paper is large and the basis weight is too large. Misalignment, inequality in the quality of book blocks.
d. When the number of pages of the offset paper and letterpress paper for offset paper is the same, the diameter of the wire must be increased.
e. The viscosity of the binder is much larger (thick) than that used for letterpress paper because of the large amount of offset paper, the smooth surface, and the low (dilute) stickiness or stickiness of the sticky paper.
f. The hardcover book core of offset paper is not easy to round and ridge, especially when the book is thick. Because the offset paper is slippery, it is easy for each book to be exposed and the front mouth has a trapezoidal shape after being rounded. When the ridges are used, due to the manual knocking, the creases in the creases cannot be flattened to cause defective products.
g. Off-set paper production books, generally higher grades, so the cover material should be better than the book core material, so that the books inside and outside the book match.
3. Coated paper
a. Any folding machine can be folded, but it can be up to three fold and cuts the air. A two-fold, one-fold best (re-post) to prevent the appearance of wrinkles in the book. Hand-folding is generally two-fold (re-stamping) or a fold. The folding plate should not be sharp, and the scraper should not be too large to avoid scratches.
b. When the thread is locked, the needle hole should not be too large (locked) or too deep (hand-locked sawing) to prevent the book from being misplaced or leaking after being glued.
C. The viscosity of the adhesive used should not be too large (sticking a single page) to stick and stick, and the surface coating will not stick.
d. When cutting, the book should not be too thick. Because the paper has large sliding force, it is easy to move after the collision. The angle α of the cutter is the same as that of offset paper, generally 23° can be used.
e. Coated paper has more fillers and is not resistant to folding. Once creases or scratches are not easy to restore, it will become brittle after exposure to the sun, and will be scrapped due to moisture, mildew, and mildew. Therefore, the temperature and relative humidity of the factory building and warehouse must be appropriate. .
Newsprint
a. newsprint folding, you can use any kind of folding machine, up to four fold (to scratch); hand-folded four fold, in the third fold of the fold should be cut to vent the air to avoid The folds are folded after the booklet is folded.
b. After the pages are printed and after the signatures are processed, they should not be placed under the sunlight and beside the heating and humid areas to avoid discoloration, brittleness, or inequality.
C. Sticky newsprint adhesive should not be too thin (because newsprint has large gaps and water seepage).
d. Wire staples have a thickness of up to 15mm and a minimum of 0.5mm.
e. When cutting a book, the angle α of the knife can generally be 20°~23°.
1. Letterpress paper
a. You can use any kind of folding machine for folding, and you can fold up to 40% (draw). When the manual folding is folded by 40%, you must cut the opening on the 3rd fold of the fold to remove the air inside the book. Guaranteed folds are folded without any wrinkles.
b. The maximum thickness of iron wire staples is 15mm, the minimum thickness is O.5mm, and the wire diameter is 0.5~0.84mm.
C. The range of adhesives used for relief paper is wide. Letterpress paper is easy to adhere, and the viscosity of the adhesive is easy to adjust.
d When cutting, the angle α of the knife is the same as that of newsprint.
2. Offset paper
a. When hitting a page, any kind of method can be used to achieve a good knock-down effect.
b. Any folding machine can complete a good folding effect, especially suitable for high-speed folding.
C. Offset paper books and books, the design should be based on three fold-based (never design four-fold page). It is best to use two packs of 8Og/m2 or more), because the thickness of the offset paper is large and the basis weight is too large. Misalignment, inequality in the quality of book blocks.
d. When the number of pages of the offset paper and letterpress paper for offset paper is the same, the diameter of the wire must be increased.
e. The viscosity of the binder is much larger (thick) than that used for letterpress paper because of the large amount of offset paper, the smooth surface, and the low (dilute) stickiness or stickiness of the sticky paper.
f. The hardcover book core of offset paper is not easy to round and ridge, especially when the book is thick. Because the offset paper is slippery, it is easy for each book to be exposed and the front mouth has a trapezoidal shape after being rounded. When the ridges are used, due to the manual knocking, the creases in the creases cannot be flattened to cause defective products.
g. Off-set paper production books, generally higher grades, so the cover material should be better than the book core material, so that the books inside and outside the book match.
3. Coated paper
a. Any folding machine can be folded, but it can be up to three fold and cuts the air. A two-fold, one-fold best (re-post) to prevent the appearance of wrinkles in the book. Hand-folding is generally two-fold (re-stamping) or a fold. The folding plate should not be sharp, and the scraper should not be too large to avoid scratches.
b. When the thread is locked, the needle hole should not be too large (locked) or too deep (hand-locked sawing) to prevent the book from being misplaced or leaking after being glued.
C. The viscosity of the adhesive used should not be too large (sticking a single page) to stick and stick, and the surface coating will not stick.
d. When cutting, the book should not be too thick. Because the paper has large sliding force, it is easy to move after the collision. The angle α of the cutter is the same as that of offset paper, generally 23° can be used.
e. Coated paper has more fillers and is not resistant to folding. Once creases or scratches are not easy to restore, it will become brittle after exposure to the sun, and will be scrapped due to moisture, mildew, and mildew. Therefore, the temperature and relative humidity of the factory building and warehouse must be appropriate. .
Newsprint
a. newsprint folding, you can use any kind of folding machine, up to four fold (to scratch); hand-folded four fold, in the third fold of the fold should be cut to vent the air to avoid The folds are folded after the booklet is folded.
b. After the pages are printed and after the signatures are processed, they should not be placed under the sunlight and beside the heating and humid areas to avoid discoloration, brittleness, or inequality.
C. Sticky newsprint adhesive should not be too thin (because newsprint has large gaps and water seepage).
d. Wire staples have a thickness of up to 15mm and a minimum of 0.5mm.
e. When cutting a book, the angle α of the knife can generally be 20°~23°.