[0001] The invention relates to a brick-shaped block of fat-containing foodstuff with a
tacky surface, packaged in a wrapper of flexible packaging material lying directly
against the block, which wrapper is lengthwise wrapped around the shortest circumference
of the block with two ends loosely overlapping and is folded up at the two opposite
smallest surfaces. Such a product is generally known, for example in the form of a
packet of margarine.
[0002] In this specification and claims a "brick-shaped block" means a rectangular parallelepiped
having either three clearly different main dimensions or two equal smaller dimensions
and one larger main dimension. Usually the former is the preferred shape.
[0003] In the above description of the prior art wrappers the expression "loosely overlapping"
is intended to exclude any connection between the overlapping ends such as by folding
around each other or by an adhesive bond.
[0004] Upon opening the wrapper it appears in many cases that the user gets greasy fingers
or that the wrapper tears in an undesirable manner. Further it appears that, after
opening and reclosing the wrappers a number of times in order to remove parts of the
block from it, the remainder is in an unattractive state.
[0005] The invention aims at easier opening of the wrapper and at diminishing or removing
said drawbacks.
[0006] According to the invention, this is possible if the two overlapping ends of the wrapper
are positioned against one of the side surfaces which are defined by a largest and
a smallest edge of the block.
[0007] A further facilitation of this opening action of the wrapper can be effected if
a) the side edges of the innermost end of both overlapping ends are first folded against
the opposite smallest surfaces of the block,
b) subsequently the side edges of the part of the wrapper immediately adjoining this
innermost end of the overlapping ends thereof,
c) thereafter the side edges of the following part and
d) finally the side edges of the part immediately adjoining the outermost of the overlapping
ends of the wrapper are folded against these smallest surfaces of the block, while
e) the side edges of the outermost end of the overlapping ends of the wrapper are
folded against the smallest surfaces after operation a) but before operation d).
[0008] Initiating the opening of the wrapper is particularly facilitated if the edge of
the innermost of the overlapping ends practically coincides with one of the largest
edges of the block. Moreover, in practice, in this way less oil exudation between
the overlapping ends is observed.
[0009] The removal of the innermost of the overlapping ends and the separation of parts
of the block can also be facilitated further if at least the largest part of the innermost
of the overlapping ends, which is lying against a side surface that is defined by
a largest and a smallest edge of the block, and the adjoining part of the wrapper
that is lying against one of the largest surfaces of the block are strengthened with
respect to the remaining part of the wrapper. As a result, the risk of damaging of
the wrapper when cutting off a part of the block is also lessened.
[0010] These parts are in particular strengthened owing to a layer of material being attached
thereto. In an advantageous and relatively cheap embodiment, the layer of strengthening
material consists of grease-proof paper or board. A simple manner of applying the
layer of strengthening material comprises printing the material of the wrapper with
a fluid form of the strengthening material, for example a melt, a plastisol or a solution
thereof.
[0011] The invention will hereafter be explained in connection with the drawings.
Fig. 1 and 2 show two embodiments of blocks packaged in a wrapper in accorda
nce with the invention.
Fig. 3 shows the successive operations of applying the wrapper.
Fig. 4 shows a wrapper having indicated therein the position of the folding lines
and of any possible strengthenings.
[0012] In Figures 1-3 a brick-shaped block of fat-containing foodstuff 1 is shown, packaged
in a wrapper 2 of a suitable, flexible packaging material. By "brick-shaped block"
is meant a rectangular parallelepiped with a rectangular or square cross-section.
In Figure 3 it is shown how a rectangular wrapper 2 is applied around the block 1:
first the wrapper is wrapped around the smallest circumference of the block, one end
3 being applied against one of the side surfaces 4 of the block 1, which side surfaces
are defined by a largest 5 and a smallest edge 6 of the block, while the edge 7 of
that end 3 practically coincides with one of the largest edges 5 of the block.
[0013] After the wrapper is wrapped like a cylinder around the smallest circumference of
the block, with one end 8 overlapping the opposite end 3, subsequently both side edges
9 of the innermost end 3 of both overlapping ends 3, 8 are folded against the smallest
surfaces 10 of the block 1 which are lying opposite each other, as indicated by the
arrow I in Figure 3. Subsequently the side edges 11 of the part 12 immediately adjoining
this innermost end 3 of the overlapping ends of the wrapper are folded in the direction
of the arrow II against said smallest surfaces 10. Thereafter the side edges 13 of
the following part 14 are folded in the direction of the arrow III against those smallest
surfaces and finally the side edges 15 of the part 16 immediately adjoining the outermost
end 8 of the overlapping ends of the wrapper are folded against those smallest surfaces
(arrow IV). The side edges 17 of the outermost end 8 of the overlapping ends are folded,
after operation a) but before operation d), against the smallest surfaces 10 of the
block 1 (see arrow IA in Fig.3).
[0014] If operation e) is carried out immediately after operation a), the situation shown
in Figure 1 arises, while when this is carried out after operation b), the situation
shown in Figure 2 arises.
[0015] In Figure 4 a spread wrapper 2 is shown with the folding lines arising from the folding
described above. The relative location of the different parts is indicated with reference
numbers.
[0016] At the same time it is indicated with hatching in Figure 4 which parts 3, 12 can
be strengthened with respect to the remaining part of the wrapper, so that when parts
of the block are cut off, there will be less chance of damaging the wrapper and that
at the same time the removal from the block 1 of the innermost end 3 of the overlapping
ends is facilitated.
1. A brick-shaped block of fat-containing foodstuff with a tacky surface, packaged
in a wrapper of flexible packaging material lying immediately against the block, which
wrapper is lengthwise wrapped around the shortest circumference of the block with
two ends overlapping and is folded up at the two opposite smallest surfaces, characterized
in that the two overlapping ends (3, 8) are positioned against one of the side surfaces
(4) which are defined by a largest (5) and a smallest edge (6) of the block (1).
2. Packaged block according to claim 1,
characterized in that
a) the side edges (9) of the innermost end (3) of both overlapping ends (3, 8) are
first folded against the opposite smallest surfaces (10) of the block (1),
b) subsequently the side edges (11) of the part (12) thereof immediately adjoining
this innermost end (3) of the overlapping ends of the wrapper,
c) thereafter the side edges (13) of the following part (14) and
d) finally the side edges (15) of the part (16) immediately adjoining the outermost
end (8) of the overlapping ends of the wrapper (2) are folded against these smallest
surfaces of the block, while >
e) the side edges (17) of the outermost end (8) of the overlapping ends are folded
against the smallest surfaces after operation a) but before operation d).
3. Packaged block according to claim 1 or 2,
characterized in that the edge (7) of the innermost end (3) of the overlapping ends
practically coincides with one of the largest edges (5) of the block.
4. Packaged block according to claim 1, 2 or 3,
characterized in that at least the largest part of the innermost end (3) of the overlapping
ends, which is lying against a side surface (4) that is defined by a largest and a
smallest edge of the block (1), and the adjoining part (12) of the wrapper (2) which
is lying against one of the largest surfaces of the block are strengthened with respect
to the remaining part of the wrapper.
5. Packaged block according to claim 4,
characterized in that the parts are strengthened owing to a layer of material being
attached to it.
6. Packaged block according to claim 5,
characterized in that the layer of strengthening material is grease-proof paper or
board.
7. Packaged block according to claim 5,
characterized in that the layer of strengthening material is applied by printing with
a fluid form thereof.