Continuous Web Forming Of Envelopes In Pamphlets

Abstract

Envelope formed by one margin of moving web, web folded in half forming crease therein, then in quarter fold at longitudinal line having stitch glue thereon, half fold crease slitted to separate pages, and web cut finally to sever separate pamphlets.

Description

FIELD OF INVENTION

This invention relates to method of making pamphlets having envelopes contained therein from a continuous web.

PRIOR ART

Envelope containing folders have been formed with printed matter on the folds, but these have been unwieldy for the reader, who must flip the folds back and forth, or extend them to a clumsy length.

Sandon U.S. Pat. No. 2,255,087 discloses a pamphlet containing an envelope, but composed of separate sheets jogged into registry and stapled together.

Holmlund U.S. Pat. No. 2,224,513 discloses a method of making envelopes from a continuous web, but no pamphlet is formed.

SUMMARY

According to the present invention, successive envelopes are formed along one margin of a continuously fed web, which is folded longitudinally to bring the other margin toward said envelopes to form a first fold with a longitudinal crease, the resultant first folded web is folded along a longitudinal line to form a second fold, the folded portions are secured together along said second fold line, said first folded longitudinal crease is slitted to form separate pages held together by said securing action, and said moving web is cut transversely at a stage after said envelope forming stage to sever the same into successive envelope containing pamphlets.

Preferably said first fold is a half fold and said second fold is a quarter fold, said transverse cutting of the web is after the second fold and crease slitting, the securing action is by adhesive applied along a longitudinal line along which said second fold is later formed. The envelopes are preferably formed by applying to the web a longitudinal line of remoist glue, successive pairs of pocket glue lines transverse to said margin are applied thereto spaced away from said remoist glue line, and said pocket glue bearing margin is folded over the adjacent portion of the web.

DRAWINGS

FIG. 1 is an elevation of the continuous web in process forming the envelope containing pamphlet;

FIG. 2 is a plan of the continuous web in process as shown in FIG. 1;

FIGS. 3, 4, 5, 6, and 7 are transverse sections taken at their stages along toward the completion of the process.

DESCRIPTION OF PREFERRED EMBODIMENTS

The web W is continuously fed from a roll and passes under a remoist glue applicator 10, which forms a continuous flap sealing glue line 12. The web W then passes under a pocket glue applicator 14, which supplies transverse pairs of pocket glue lines 16 at spaced intervals along the margin of the moving web, spaced outward from the remoist glue line 12.

A stitch glue line 20 is formed longitudinally on the moving web spaced inward from the pocket glue pairs 16 and outward from the remoist glue line 12, by passing under a stitch glue applicator 18, which forms a line of intermittent spots. The margin M passes to an envelope former 22, which as shown in FIG. 3, folds the moving margin over onto the remaining moving web W, and adhering the pocket glue pairs 16 thereto.

The moving web W then passes to a half fold former 24, which as shown in FIG. 4, brings the other side thereof over the envelopes of the margin M, forming a crease 26. The half folded web as shown in FIG. 5, passes to a quarter fold former 28, which causes the halves to adhere at the glue stitch line 20.

The quarter folded and adhered web passes to a slitter 30 which trims off the crease 26 as shown in FIG. 6, to separate the adjacent quarters into pages. The trimmed quarter folded web passes to a transverse cutter 32, which severs the same at the center of the pairs of pocket glue lines 16 to form successive envelope containing pamphlets, as shown in FIG. 7.

It should be noted that the web can be cut transversely at any stage after the adhesive applying and envelope forming stages, for example before the half fold former 24 as at 34, or before the quarter fold former 28 as at 36. Also, the slitting to form separate pages may be done before or after the half fold former 24.

Claims

What is claimed is:

1. The method of producing pamphlets having envelopes contained therein, which comprises:

running a continuous web of pre-printed paper stock through a glue applicator, the web cross section including transversely extending adjacent envelope back and address portions and an adjacent flap section which are disposed along one edge of the web, the remainder of the web being a pamphlet page section;

applying transverse and longitudinally spaced lines of glue to one of the envelope portions;

folding the envelope back and address portions with respect to each other along a first fold line so as to bring their faces into contact and to sandwich the glue between them so as to hold them together thereby forming successive envelope sections;

folding the pamphlet page section of the web along a second continuous longitudinal fold line so that a portion thereof overlies the envelope portion of the web;

folding the resultant folded web longitudinally along a third fold line toward the envelope with the second fold line extending beyond and clear of the envelope section;

securing the several portions of the web together along the third fold line;

slitting of the web along the second fold web to form separate pages which are held together along the third fold line to thereby produce a multiple page web;

transversely cutting the multiple page web at a point between the envelope sections to successively produce a plurality of envelope containing pamphlets.

2. The method of producing pamphlets having envelopes contained therein as set forth in claim 1, in which:

a line of adhesive is applied to the web along a portion thereof which will be disposed along the third fold line and between the web portions which face each other after the second fold is made so as to effectively secure these web sections together when the third fold is made.

3. The method of producing pamphlets having envelopes contained therein, as set forth in claim 1, wherein:

the transverse and longitudinally spaced lines of adhesive are slightly spaced from the edge of the web and extend transversely a distance slightly less than the desired depth of the envelope pocket.

4. The method of producing pamphlets having envelopes contained therein as set forth in claim 3, wherein:

the lines of adhesive include a spaced series of pairs of transverse lines of adhesive.

5. The method of producing pamphlets having envelopes contained therein as set forth in claim 4, in which:

the inner end of the lines of adhesive is spaced from the envelope fold-line disposed adjacent thereto.

6. The method of producing pamphlets having envelopes contained therein as set forth in claim 5, in which:

the transverse cutting of the web is the final method step.

7. Method of producing pamphlets having envelopes contained therein as claimed in claim 1, in which

said first fold is a half fold and said second fold is a quarter fold.

8. The method of producing printed pamphlets having envelopes contained therein, comprising:

running a continuous web of pre-printed paper stock in contact with a plurality of glue applicator units, the web having a cross section including a plurality of sections proceeding from one of the web edges and including successively an envelope backside section, an envelope address section, an envelope flap section, a centerfold section, and a pamphlet page section,

applying a remoist line of glue adhesive to the flap section adjacent the centerfold section,

applying longitudinally spaced sets of two parallel transversely extending envelope side-forming lines of adhesive to the upper side of the web on the envelope back section, the ends of the lines of adhesive being kept clear of the first web edge and the envelope address section,

the parallel lines of adhesive of adjacent sets being spaced to provide the desired envelope length, and the lines of adhesive being in registry with the pamphlet page sections of the web,

applying a line of adhesive to the centerfold section of the web,

folding the envelope back section over onto the envelope address section along a continuous first fold line between the sections,

folding the other edge of the web about a continuous line in the pamphlet page section to extend over and beyond the first fold of the continuous line of envelopes,

folding the reduced size web along a second fold line within the centerfold section with the folded edge extending slightly over and beyond the first fold which forms the lower edge of the envelope,

slitting the closed edge of the web which was folded over the envelope section,

cutting the web transversely between the successive pairs of transverse glue lines to provide a plurality of envelope containing pamphlets.