JPS6236879B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing special signatures to be bound into flat-stitched or perfect-bound books, which are printed on a rotary press and simultaneously folded on a folding machine to produce outward-folding and double-folding. , relates to a method for efficiently manufacturing signatures, such as by winding and folding.

Conventionally, folding such as outward-folding, double-folding, and rolling folding, which are folded together into bound books, is done by placing sheet-fed printing paper on a sheet-fed folding machine. It was impossible to obtain the above-mentioned signatures using a folding machine.

The present invention is a method in which the above-mentioned special signature can be folded using a rotary press folding machine, and can be obtained continuously at the same time as printing.

As shown in FIG. 1, the method of the present invention involves folding b of two parallel rows of webs 2a and 2b that are folded back at a position slightly offset from the center of the web by two parallel formers 1 and 1 of a rotary press folding machine. Alternatively, a gluing section 3 is provided on the edge facing c, and a sticking roller 5 is used to stick the inner or outer sheets of both webs, or the inner and outer sheets together, and the cutting cylinder 7
This is a method for producing a glued signature, which is characterized by cutting the signature into signatures.

As shown in FIG. 2, the webs 2a and 2b cut in half by a slitter 6 are folded into folds b and b slightly offset from the centers a and a of both webs using two parallel formers 1 and 1. Fold seams c, c or one web 2a at crease c and fold the other web 2a.
B is folded back at crease b, passed through a nip roller, and a glued part 3 is provided on the edge opposite to crease b. After pasting the inner sheets together, or pasting the outside sheets together as shown in FIG. 4, or pasting the inside and outside sheets together as shown in FIG.
It is cut and folded at a machine.

If the inner paper leaves are pasted together like this, the third
If an outside-opening signature is obtained and the outer sheets are pasted together, a Kannon signature in Figure 4 will be obtained, and if the inner and outer leaves of both webs are pasted together, a rolled signature in Figure 5 will be obtained. This can be done by changing the folding positions of the formers 1, 1 in FIG. 1 to the folds b to c in FIG. 2.

As described above, the method of the present invention does not involve printing with a sheet-fed printing press and folding with a sheet-fed folding machine as in the past, but with a special folding machine that performs continuous folding at the same time as printing with a rotary press folding machine. This is a method that makes it possible to fold outward-opening signatures, double-sided signatures, and rolled signatures in an extremely efficient and continuous manner using a rotary press folding machine, and does not require special pages. This method exhibits remarkable effects as a method for binding books.

[Brief explanation of the drawing]

Fig. 1 shows an example of special signature processing using a rotary press, Fig. 2 is an explanatory diagram showing the positional relationship of former folds, and Figs. 3, 4, and 5 respectively show the method of the present invention. FIG. 2 is a perspective view showing a special signature produced using a rotary press. 1...former, 2a, 2b...printing web, 3...gluing section, 4...coating applicator,
5... Sticking roller, 6... Slitter, a... Center of web, b, c... Crease.

Claims (1)

[Claims] 1 A glued portion is formed on the edge opposite to fold b or c of two parallel rows of webs 2a and 2b that are folded back at a position slightly offset from the center of the web by two parallel formers 1 and 1 of a rotary press folding machine. 3 is provided, and a sticking roller 5 sticks the inner and outer sheets of both webs, or the inner and outer sheets, respectively, and the cutting cylinder 7 cuts them into signatures. A method of manufacturing a glued signature.