FIELD: polygraphy.
SUBSTANCE: invention relates to printing industry. It is achieved by new method assembly of units, determining new quality of adhesive joint. Method of assembly of units is characterized by compilation of one-bend sheets with fold to spine, each of which forms two sheets, leveled and compacted at specified distance from butt. Glue layer is applied on fluffed butt of unit, formed by spine folds, compressed with rollers. Glue flows between sheets only to specified depth due to elastic compression of oval bends of sheets with press. Wherein butt of each double sheet of entire brochures in one pass is coated with glue from three sides accurately at contact with other double sheets. Degree and removal of pressing zone from butt of folds determines depth of penetration of glue between sheets. It allows increasing area of butt gluing of each sheet in 3–5 times, creating lateral zones of adhesion and make them mobile. Operation method is characterized by high fixation strength, softness and mobility, wherein even at stirring ironing of turn no breaking of glueing area appears sheets do not break out from adhesive layer.
EFFECT: invention aims at increasing strength and durability of adhesive bonding of inner blocks of books without increasing cost.
1 cl, 12 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| BOOK THREADLESS BINDING METHOD | 0 |
|
SU921883A1 |
| BOOK UNIT AND METHOD OF PRODUCING SAME | 0 |
|
SU1419929A1 |
| METHOD OF THREADLESS BINDING OF BOOK UNITS | 0 |
|
SU992231A1 |
| METHOD OF BINDING BOOK UNITS | 0 |
|
SU1000304A1 |
| STITCHLESS BOOK FASTENING METHOD | 1998 |
|
RU2121440C1 |
| METHOD OF THREADLESS BINDING OF BOOK | 0 |
|
SU1044469A1 |
| 0 |
|
SU1781087A1 | |
| METHOD OF PRODUCING BOOKS AND MAGAZINES | 0 |
|
SU921882A1 |
| METHOD FOR UNSEWING ADHESIVE SPLICE OF BOOKS | 2003 |
|
RU2244633C1 |
| THREADLESS BOOK-BINDING METHOD | 0 |
|
SU990550A1 |
