Field of the Invention
[0001] The invention relates to a mailing form, of the type comprising a sheet of paper:
which is provided with a front surface for containing a text, said front surface having
two first longitudinal edge areas, having first portions capable of being glued; which
is provided with a rear surface, opposite to said front surface, said rear surface
having two second longitudinal edge areas, provided with second portions capable of
being glued; which has an upper transverse border and a lower transverse border and
which is adapted to be folded successively by a plurality of lines of fold substantially
parallel to said transverse borders.
Description of the Related Art
[0002] Where correspondence, particularly advertising and other types of very stable, repetitive
and generally single-sheet correspondence is concerned, the so-called self-sealing
type is known, in which the letter itself acts as an envelope, which is achieved,
on the one hand, by folding the letter in such a way that a size in accord with the
standardised sizes is achieved, leaving the details of the addressee and his address
visible, and on the other hand, closure of the contour of the folded document, by
welds or gluing, to confer consistence thereon when being handled in the mail from
the sender to the addressee, apart from achieving the desired degree of confidentiality.
Different adhesives are applied to the printed form or letter, depending on the mechanism
used for folding and sealing the contour. To facilitate opening of the correspondence
by the addressee, perforated lines are formed along the adhesive layout.
[0003] In this type of correspondence, the letter heading is used for the details of the
addressee that would appear on an envelope.
[0004] The advantage of these forms over the traditional types of letter enclosed in an
envelope is that the degree of automated processing is higher, with fewer personnel
generally being required, while a greater throughput is achieved.
[0005] All these forms require, further to a specific way of folding, distribution of the
adhesives on the vertical side edges and one or more horizontal adhesive lines to
guarantee the confidentiality of the content. Otherwise, it would be possible to see
the content horizontally and read it easily either at the top, at the bottom or in
the middle of the folded letter.
[0006] In this process, the desired folding offers no complications, since there is a wide
range of folding machines for this aspect. There is no great difficulty either in
applying the adhesives to the left and right hand sides of the printed form or letter.
The application of the perforated opening lines corresponding to these adhesives is
not complex either.
[0007] The problem arises when it is a question of metering horizontal or transverse lines
of adhesive on the printed form and even more so when they have to be applied to precise
points to make them coincide when folding and at the same time carry out the corresponding
perforations. This makes the form more expensive and notably reduces the number of
possible suppliers.
[0008] Likewise, the mechanisms required to seal or glue the item become more complicated
and increase costs when it is requited to have transverse adhesive portions on the
printed form.
[0009] The conclusion of all the above is that a heavy investment and large volumes of correspondence
are required to take advantage of these types of correspondence.
SUMMARY OF THE INVENTION
[0010] It is an object of the invention to overcome the above mentioned drawbacks. This
object is achieved with a form of the type first mentioned above which is characterized
in that: [a] it comprises a first line of fold close to said lower transverse border,
said first line determining on said sheet of paper an lower end portion of very small
longitudinal dimension; [b] it comprises at least one pair of second lines of fold,
each of said pairs being formed by a near line of fold and a distant line of fold,
said near line of fold being closer to said first line of fold than said distant line
of fold; and [c] said sheet of paper being adapted for having: [i] a first fold about
said first line of fold, such that said fold leads to the face-to-face arrangement
of front surface portions; [ii] at least one second fold about one of said near lines
of fold, such that each of said second folds leads to the face-to-face arrangement
of front surface portions; and [iii] at least one third fold about one of said distant
lines of fold, such that each of said third folds leads to the face-to-face arrangement
of rear surface portions.
[0011] With the form of the invention, it is possible to keep the contents confidential,
by the use of the glueable portions located on longitudinal areas and without the
need of using transverse adhesive portions, which the present form lacks.
[0012] This result is achieved by making one or more folds in such a way that the content
of the letter or correspondence to be kept confidential is on the inside of this fold
or others previously made or to be made subsequently, but at least one of them intercepts
the view between the folds since it is closed at the sides by the said adhesive application.
[0013] Thus: a letter is folded in a way that the front surface, with the content thereof,
is covered by the fold; either partially, leaving the details of the addresses and
his address visible, or completely or even with the foot of the letter overextending
the head, until the details of the addressee and his address are made to coincide
with a transparent window, similar to those used on envelopes, located just opposite
the folds, making such details visible. This fold alone does not keep the content
confidential, even though the vertical side edges were sealed or glued because it
could be read or seen from the horizontal edges.
[0014] A further enveloping fold is made, always leaving the details of the addressee and
his address visible, either directly or through the window. This fold does intercept
the view of the content therefrom, in such a way that it will be 100% of the content
if the fold is made only with the overextending portion or a percentage if it is made
by folding both parts of the previous fold.
[0015] One or more further folds may be necessary, depending on the length of the form,
to adjust the correspondence to the appropriate sizes for the sending thereof. These
folds may be in C or in Z, but always leaving the details of the addressee and his
address visible.
[0016] The order of the folds may vary relative to what has been said above, i.e., they
may be made in a different order, but the final appearance will be the same. This
is because, even when the folds are made by hand, but moreso when using folding mechanisms,
it may not be necessary to make the folds in that order to achieve the same appearance.
[0017] If the above is complemented with the sealing or gluing of the longitudinal edges
of the different folds, further to obtaining the required consistency, a view of the,content
through these sides may be blocked and, precisely for the folds made, it is possible
to keep the content of the correspondence confidential, without the need for transverse
seals or gluing.
[0018] The confidential area may be indefinite on the front surface and on the rear surface,
depending only on the length of the printed form.
[0019] The appearance may be completed by eliminating the perforated lines usually prepared
along the arrangement of the glued lines, in this case only longitudinal, since there
are no transverse adhesive lines. Where the perforations do not exist, the addressee
may open the correspondence using scissors, by removing the glued longitudinal edges,
without any risk of destroying the content of the correspondence, or the sealing machine
can produce the said lines of perforations.
[0020] When the present invention is compared with the conventional types, the lower cost
of the printed form and the simplification of the mechanisms to achieve confidentiality
of the correspondence, with only vertical seals or glued lines being necessary, are
obvious. In fact, although the folding operation is not particularly different, since
the accuracy required by the metering of the conventional horizontal lines of adhesive
is not necessary, normal writing paper may be used, if desired, with the longitudinal
lateral lines of adhesive being metered at the same time as the folding is done, together
with the corresponding perforations. All of this may be done using a rather more sophisticated
folding machine that the usual one (for the adhesive metering devices and the toothed
wheels producing the perforations) but never as complex as the mechanisms (folding
and sealing machines) used up to date.
[0021] Furthermore, should it be desired to use forms prepared with adhesives, since the
transverse ones are not required, the number of suppliers capable of supplying them
is multiplied by tens or hundreds and the cost of the forms is notably reduced. The
adhesives may be normal ones, which must of necessity be applied during the folding
operation itself, or special contact, wet sealing, impact, high pressure, hot-melt,
etc. adhesives may be pre-applied to the form. These latter will require the corresponding
mechanical closing or sealing operation, carried out simultaneously with the folding
operation, or in a subsequent operation, carried out immediately after folding or
totally independently.
[0022] Another important difference to be pointed out in the comparison of the invention
with the conventional forms is that although the latter are limited to one sheet or,
at the most, two, not so much for the possibility of making the various folds, but
for the difficulty of opening the correspondence correctly, without tearing the letter
(due to the transverse lines of adhesive), with the present form, the printed matter
may comprise an infinite number of sequential sheets, limited in practice only by
the manufacture of the continuous paper.
[0023] The form also allows parts of the printed matter to be used for special cases of
correspondence, such as:
- Registered Mail with Acknowledgement of Receipt.
- Correspondence containing a Reply Card.
- Correspondence containing a Reply Envelope.
- Correspondence combining the previous cases.
[0024] In all cases, the confidentiality of the content is achieved by the longitudinal
seals or lines of adhesive and, at the head and the foot, by the types of folds, independently
of the number of folds made.
[0025] It is only possible to know the content of the letter by violating the letter or
removing the adhesive from the edges, with the manipulation of the mail being easily
recognisable.
BRIEF DESCRIPTION OF THE DRAWING
[0026] Further advantages and features of the invention will be appreciated from the following
description in which preferred embodiments of the invention are described without
any limitation and with reference to the accompanying drawings, in which:
[0027] Figure 1 is a plan view of the front surface of one embodiment of the mailing form
of the present invention.
[0028] Figure 2 is a plan view of the rear surface of the mailing form according to Figure
1.
[0029] Figure 3 is a perspective view, on a smaller scale, of a form according to the previous
two figures, during the folding process of the form.
[0030] Figures 4 and 5 are plan views of the front surface of further embodiments of the
mailing form according to the present invention.
[0031] Figure 6 is a perspective view of the form of Figure 4, during the folding process
of the form.
DESCRIPTION OF PREFERRED EMBODIMENTS
[0032] The mailing form of the present invention comprises a sheet of paper in which it
is obviously necessary to distinguish a front surface 2 and a rear surface 4. The
front surface 2 is for containing the message or text it is wanted to send to the
corresponding addressee. No text is required on the rear surface 4, although advantage
may be taken of it to contain advertising matter, illustrations or any other information
deemed desirable. The sheet of paper defines longitudinal edges 5, a transverse upper
edge 7s and a transverse lower edge 7i. In the present description and claims, the
longitudinal direction is understood to be the direction of the edges 5, extending
from one transverse border 7 to the other. Likewise, the transverse direction is understood
to be that of the edges 7, extending from one edge 5 to the other.
[0033] The front surface 2 is provided with first longitudinal edge areas 6 on which there
are first glued portions 8. In turn, the rear surface 4 is provided with second longitudinal
edge areas 10 where there are second glued portions 12. These portions 8, 12 are either
glued or capable of being glued and it should also be said that these portions may
be continuous or discontinuous.
[0034] When the folds to which further reference will be made hereinafter are made, some
of these first portions 8 are superimposed on some of the second glued portions 12,
whereby the sealing operation of the form is facilitated.
[0035] There are preferably provided weakening lines 14, to facilitate removal of the longitudinal
edge areas 6, 10. Reference will be made hereinafter on the obvious effects of this
removal. Nevertheless, the invention also comprises embodiments not having the weakening
lines 14, in which case a cutting instrument, such as scissors must be used for opening
the form.
[0036] The form comprises a first line of fold 16 close to the lower transverse border 7i.
A lower end portion 18, of short longitudinal length, is defined between the lower
transverse border 7i and the first line of fold 16 and has a front surface 18a and
a rear surface 18p. According to the invention, a first fold made about the first
line of fold 16 leads to the position shown in Figures 3 and 6, where it may be seen
that the rear surface 18p of the lower end portion 18 is on the outside of the form
and, consequently, the front surface 18a will face the front surface 2 of another
portion of the sheet, all as disclosed hereinafter.
[0037] The form also comprises at least one pair of second lines of fold and each of these
pairs is formed by a near line of fold 20 and a distant line of fold 22. It should
be noted that the terms "near" and "distant" are used relative to the said first line
of fold 16.
[0038] In the embodiment according to Figures 1 to 3, there is only one pair of second lines
of fold, while in the embodiment of Figure 5, there are two pairs of said second lines
of fold. Further reference will be made to the embodiment according to Figures 4 and
6.
[0039] Between the near line of fold 20 and the first line of fold 16 there is defined a
new portion 24 having a front surface 24a and a rear surface 24p, while between the
near line of fold 20 and the distant line of fold 22 of one same pair, there is a
new portion 26 having a front surface 26a and a rear surface 26p. Also, between the
last distant line of fold 22 and the upper edge 7s, there is defined a further portion
28, also having a front surface 28a and a rear surface 28p.
[0040] A second fold about the near line of fold 20 causes the front surfaces 24a and 26a
of the portions 24 and 26 to be superimposed. Therefore, when the form is sealed,
these front surfaces mutually cover themselves, ensuring the confidentiality of the
text therebetween.
[0041] On the contrary, a third fold about the distant line of fold 22 causes the rear surfaces
26p and 28p of the portions 26 and 28 to be superimposed. In this way, the front surface
28a of the portion 28 is only covered in part by the front surface 18a of the first
lower end portion 18. Nevertheless, instead of this circumstance being unfavourable,
it forms one of the advantages of the invention, since the surface 28a of the portion
28 is the one for containing the name and address of the addressee, whereby in this
way it is possible to print the whole text it is wanted to send, including details
of the addressee, on the same front surface 2 of the sheet of paper.
[0042] In the embodiment shown in Figure 5, it also happens that the fold about the first
line of fold 16 also causes the front surfaces 18a and 28a of the portions 18 and
28 to be superimposed. The second folds about the near lines of fold 20, 120 cause
the corresponding front surfaces 24a, 124a and 26a, 126a to be superimposed, while
the third folds about the distant lines of fold 22, 122 cause rear surfaces to be
superimposed, to be precise the rear surface 26p on the rear surface of the portion
124 and superimposition of the rear surface of portion 126 with the rear surface of
the portion 28. As in the previous case, the short initial end portion 18 partly covers
the front surface 28a of the portion 28.
[0043] In the embodiment according to Figures 4 and 6, the portion 28 is limited by the
line of fold 30 and on the other side of this line there is a portion 32 which, in
the closed position of the form, is superimposed on the portion 28. This portion 32
may be used for containing an acknowledgement of receipt or other document.
1. A mailing form, of the type comprising a sheet of paper:
which is provided with a front surface (2) for containing a text, said front surface
(2) having two first longitudinal edge areas (6), having first portions (8) capable
of being glued;
which is provided with a rear surface (4), opposite to said front surface (2), said
rear surface (4) having two second longitudinal edge areas (12), provided with second
portions (12) capable of being glued;
which has an upper transverse border (7s) and a lower transverse border (7i);
which is adapted to be folded successively by a plurality of lines of fold (16, 20,
22, 120, 122, 30) substantially parallel to said transverse borders;
characterized in that: [a] it comprises a first line of fold (16) close to said
lower transverse border (7i), said first line (16) determining on said sheet of paper
an lower end portion (18) of very small longitudinal dimension; [b] it comprises at
least one pair of second lines of fold (20, 22, 120, 122), each of said pairs being
formed by a near line of fold (20, 120) and a distant line of fold (22, 122), said
near line of fold (20, 120) being closer to said first line of fold (16) than said
distant line of fold (22, 122); and [c] said sheet of paper being adapted for having:
[i] a first fold about said first line of fold (16), such that said fold leads to
the face-to-face arrangement of front surface portions (18a, 28a); [ii] at least one
second fold about one of said near lines of fold (20, 120), such that each of said
second folds leads to the face-to-face arrangement of front surface portions; and
[iii] at least one third fold about one of said distant lines of fold (22, 122), such
that each of said third folds leads to the face-to-face arrangement of rear surface
portions.
2. The form of claim 1, characterized in that it is provided with two longitudinal lines
of weakening (14), each of which delimits one of said longitudinal edge areas (10).
3. The form of claim 1 or claim 2, characterized in that it is provided with a last line
of fold (30) farther removed from said first line of fold (16) than said second lines
of fold (20, 22, 120, 122) and in that said sheet of paper is provided with a last
fold about said last line of fold (30), such that said last fold causes the face-to-face
arrangement of rear surface portions.