JP2001278366A - Carton for tissue paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carton for tissue paper of the pop-up type wherein a widow bonding sheet, which has a tissue paper takeout port to cover a cutoff piece forming a takeout port on the upper side of the carton, is fixed to the rear part of the cutoff piece, and tissue paper can be prevented from being broken at the initial stage of taking out and the tissue paper can be prevented from slipping into the carton at the final stage of taking out, whereby the carton can be recycled as it is. SOLUTION: The window bonding sheet 5 is formed from paper or rayon paper, which is made by a wet method, and a takeout port 7, which is exposed in a takeout port 6, is comprised of a longitudinal slit 7a and branch slits 7b, each of which is formed by at least two straight lines and/or arcuate curves, which are branched outwardly and radially from both edges of the slit 7a. The length of the slit 7b is 15 mm or more and the slit 7b is oriented at an angle of 10-80 degree with respect to the extended line of the longitudinal center line of the slit 7a, while an edge which is extended to the point where the port 6 is not exposed is located in an annular adhesion region or a welding region.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a window sticking sheet having an outlet for taking out tissue paper so as to cover a cut piece cut by an annular perforation forming a take-out opening at a predetermined position on an upper surface from the back side. This is a carton for tissue paper that stores a large number of sets of tissue paper fixed on the back surface of the upper surface in a superimposed state, and despite excellent recyclability, eliminates tearing of tissue paper at the beginning of drawer, tissue paper The present invention relates to a pop-up type carton for tissue paper which eliminates a drop-back in which tissue paper falls into the carton at the end of removal when the remaining amount is reduced, and does not cause tearing of the window-attaching sheet or damage to the outlet.

[0002]

2. Description of the Related Art As a conventional tissue paper carton, as shown in a perspective view of FIG. 9 and a rear view of an upper surface of FIG. 10, an opening for taking out tissue paper is provided at a predetermined position on an upper surface 2 of a rectangular parallelepiped carton body. 6, a perforation 3 is formed in an annular shape, and a take-out port 7 for taking out tissue paper so as to cover a cut piece cut by the perforated ring 3 forming the take-out opening 6 from the back side. In general, a window-attaching sheet 5 made of a plastic film such as a polyethylene film having a linear slit whose edge is located in the opening 6 is bonded or welded. In such a carton for tissue paper, the cut piece is cut off along the annular perforation 3 at the time of use, and the cutout opening 6 is opened.
The tissue paper can be continuously taken out one set at a time from the take-out port 7 of the printer. A large number of sets (usually two or three sets of 100 to 2
50 sets of tissue papers are stored in an overlapping state in which each set is alternately folded so that one set can be continuously taken out of the carton, and when one set is pulled out from the outlet 7, the next set follows. It is pulled out from the inside and is held in the outlet 7.

The conventional pop-up type carton for tissue paper has the following problems. Since a window sheet made of a plastic film is adhered or welded to the back side of the upper surface of the tissue paper carton, it cannot be used as used paper as it is after use, and it is necessary to remove the window sheet one by one. Yes, it is difficult to recycle. When taking out the tissue paper from the opening of the opening for taking out the opening, the tissue paper exerts a force to lift the edge of the opening of the plastic film constituting the window attaching sheet. The tearing force is applied to the slits, and while the tissue paper is being repeatedly taken out, the edge of the slit outlet is torn or cracked, so that the length of the slit becomes longer and the holding power of the tissue paper is reduced. When the tissue paper is repeatedly taken out, the plastic film constituting the window sticking sheet is stretched, and the holding power of the tissue paper is reduced. Since the length of the outlet is set to be smaller than the width of the tissue paper, the tissue paper taken out of the outlet is compressed to the length of the shorter outlet and the friction between the wrinkles generated in the width direction and the outlet Although it is held at the outlet by force, if the tissue paper is repeatedly taken out and the remaining amount of tissue paper decreases, the distance between the outlet and the upper surface of the remaining tissue paper increases, and the weight of the tissue paper can be held only by friction force Dropbacks may occur, causing tissue paper to drop into the tissue paper carton.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the problems of the conventional pop-up type carton for tissue paper comprehensively, has excellent recyclability, and the window-attaching sheet is torn when the tissue paper is taken out. It is an object of the present invention to provide a pop-up tissue paper carton in which the tissue paper does not slip into the tissue paper carton during the removal period.

[0005]

The inventor of the present invention has made intensive studies in order to solve the above-mentioned problems, and as a result, has covered from behind a cut piece cut by an annular perforation forming an extraction opening at a predetermined position on the upper surface. Pop-up tissue paper carton for accommodating a large number of sets of tissue paper in a superimposed state, with a window-attaching sheet having a take-out opening for taking out tissue paper is fixed to the back surface of the upper surface by an annular bonding area or welding area. Wherein the window-attaching sheet is made of paper or wet-processed synthetic fiber paper, and the outlet exposed at the take-out opening has a linear or wavy slit along the longitudinal direction or a short side having an arc shape. A longitudinal slit composed of a deformed rectangular cut portion having a width of 10 to 10 mm, and at least two straight lines radially branching outward from both edges of the longitudinal slit; Or a branch slit having an arc-shaped curve, the branch slit having a length of 15 mm or more and an angle formed by an extension of a longitudinal center line of the longitudinal slit with an extension line of 10 to 80 degrees. The present inventors have completed the present invention by finding out that it is sufficient to have a configuration that extends to a position that is not exposed to the opening, and the edges thereof are located in the annular bonding area or the welding area, respectively.

Further, the paper constituting the window-attaching sheet or the wet-processed synthetic paper has a basis weight of 10 to 70 g / m ² according to JISP8124 ₁₉₇₆ “Measurement method of paper metric basis weight” and JISP8143 ₁₉₆₇ “ Stiffness test method by gravity bending method "(Clark method) 3.
0 to 90, preferably 1.5 to 40 in the horizontal direction, and when the paper constituting the sheet for window application or the wet-processed synthetic fiber paper is paper, the paper is easily recycled. , Calligraphic paper, wrapping paper, processed base paper, and water-resistant liner. The longitudinal tensile strength in JISP 8113 ₁₉₉₄ "Test method for tensile strength of paper and paperboard" is 1 to 9 km in breaking length. When the tensile strength in the transverse direction is 0.5 to 5 km in tear length, and when the paper constituting the sheet for window application or the wet-processed synthetic fiber paper is synthetic fiber paper, the synthetic fiber paper is made of pulp fiber. Rayon fiber as the main raw material, and one or more fibers selected from vinylon fiber, PVA fiber, and other thermoplastic resins as the auxiliary raw material, to which a dispersant and / or a paper strength enhancer is added. , JISP
8113 ₁₉₉₄ It is also found that it is preferable that the tensile strength in the longitudinal direction in the "test method for tensile strength of paper and paperboard" is 1 to 10 km and the transverse tensile strength is 1 to 6 km. It was done.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a carton for tissue paper according to the present invention will be described in detail with reference to the drawings. FIG.
FIG. 1 is a perspective view showing a state in which a cutout piece is cut out by an annular perforation formed at a predetermined position on an upper surface and a takeout opening is opened in one embodiment of a tissue paper carton according to the present invention, and FIG. FIG. 3 is a perspective view showing a state in which the tissue paper drawn out from the tissue paper carton according to the present invention is held in an outlet.
8 are rear views of the upper surface of the tissue paper carton according to the present invention showing different aspects.

In the drawings, reference numeral 1 denotes a pop-up type carton for tissue paper according to the present invention, which accommodates a large number of sets of tissue papers in a superimposed state. As shown in FIG. A perforation 3 is engraved in an annular shape so as to form an opening 6 for taking out a tissue paper, and various cutouts cut by the annular perforation 3 are covered from the back side as shown in FIGS. A window bonding sheet 5 made of paper or wet-formed synthetic fiber paper having a longitudinal slit 7a and a branch slit 7b as an outlet 7 of the embodiment has an annular bonding area or welding area on the back surface of the upper surface 2 of the carton body. 4, the edges of the branch slits 7b are positioned and fixed in the annular bonding area or welding area 4, respectively.

The window-attaching sheet 5 for covering the cut piece cut out by the annular perforation 3 so as to form the take-out opening 6 from the inside is made of paper or synthetic paper made by wet-making as described above. Therefore, the outlet 7 must have a longitudinal slit 7a and a branch slit 7b because it does not greatly expand unlike the conventional polyethylene film, and is formed by cutting a cut piece along the perforation 3. FIGS. 3 to 8 show outlets 7 appearing at the outlet 6 to be taken out.
As shown in FIG. 7, there are different modes for the longitudinal slit 7a and the branch slit 7b.

That is, it is fixed to the back surface of the upper surface 2 of the carton body by an annular bonding area or welding area 4 so as to cover an extraction opening 6 formed by cutting a piece along the annular perforation 3. The take-out opening 7 formed in the window-attaching sheet 5 is conventionally provided so that its edge is located in a take-out opening 6 which is usually substantially straight and serves as a take-out opening 7 for taking out tissue paper. It was a slit.
This is because the conventional window-attaching sheet 5 is made of a material that is flexible and can be greatly expanded like a polyethylene film. When the tissue paper is taken out through this slit, the window-attaching sheet 5 is lifted. This is because the force acting on the tissue paper is reduced in a state in which the slit interval slightly increases as a result.

However, in the present invention, since paper or wet-processed synthetic fiber paper is used as the window-attaching sheet 5 in consideration of recyclability, it cannot be stretched as widely as a conventional polyethylene film. ,
If the outlet 7 is made only of a straight slit, the slit interval is not widened even if an attempt is made to insert a fingertip into the outlet 7 when taking out tissue paper through this slit, so that the slit is broken. Therefore, in the present invention, the outlet 7 formed in the window-attaching sheet 5 is formed by cutting a straight or wavy slit along the longitudinal direction or a deformed rectangular cut portion having a width of 5 to 10 mm and having a short side in an arc shape. A longitudinal slit 7a, and at least two branches radially outwardly from both edges of the longitudinal slit 7a.
And a branch slit 7b forming a straight line and / or an arc-shaped curve, the branch slits 7b on both sides of the longitudinal slit 7a from the peripheral edge of the extraction opening 6 to the end edge of the longitudinal slit 7a are formed as hypotenuses. A straight line connecting the peripheral positions of the take-out openings 6 of the branch slits 7b is defined as a base, and a trapezoidal or deformed trapezoidal part 8 whose upper side is formed by a longitudinal slit 7a is extended around the base to form a window. As in the case where a conventional polyethylene film is used as the pasting sheet 5, a fingertip is inserted into the outlet 7 so that one set of tissue paper can be picked and pulled out.

The pop-up type carton 1 for tissue paper has the function of easily pulling out a set of tissue papers one by one from an outlet 7 formed in the window-attaching sheet 5 and the next tissue paper. Is required to hold one set at the exit 7. However, in the case where a polyethylene film is used as the conventional window-attaching sheet 5, while the operation of pulling out the tissue paper is repeated, the polyethylene film is stretched, the holding power is reduced, and the remaining amount of the tissue paper is small. As a result, the weight of the tissue paper cannot be maintained only by the frictional force, and a dropback phenomenon has occurred in which the weight of the tissue paper slips into the tissue paper carton.

However, in the present invention, the outlet 7 is formed by a linear slit or a wavy slit extending along the longitudinal direction or a deformed rectangular cut portion having a short side of an arc and having a width of 5 to 10 mm and a longitudinal slit 7a formed of a cut portion. Since it is composed of at least two straight and / or arc-shaped curved branch slits 7b radially outwardly branching from both edges of the longitudinal slit 7a, the longitudinal slit 7a extends from the peripheral edge of the take-out opening 6 to the longitudinal slit 7a. The oblique side formed by the branch slits 7b on both sides of the longitudinal slit 7a reaching the edge of the base and the base formed by a straight line connecting the peripheral positions of the extraction openings 6 of both branch slits 7b and the longitudinal slit 7a
A trapezoidal or deformed trapezoidal portion 8, an oblique side composed of a branch slit 7b extending from the periphery of the take-out opening 6 to the end of the longitudinal slit 7a, and the take-out openings 6 of the two branch slits 7b. Since the triangle or the deformed triangular portion 9 composed of the base composed of a straight line connecting the peripheral positions can be displaced so as to bend around the base, the tissue paper taken out from the tissue paper carton 1 is located at the center thereof. Is trapezoidal or deformed trapezoidal part 8
The two ends of the tissue paper are drawn out securely and smoothly between the triangular or deformed triangular portions 9 and the trapezoidal or deformed trapezoidal portions 8 on both sides, and a pair of tissue paper to be drawn out is mainly formed on both sides. It is held between the triangular or modified triangular portion 9 and the trapezoidal or modified trapezoidal portion 8 as shown in FIG.

If a length between the triangular or deformed triangular portion 9 on each side and the trapezoidal or deformed trapezoidal portion 8 is short, the holding force of the set of tissue paper to be pulled out is too small because the holding force is too small. Is necessary, and since the window-attaching sheet 5 is made of hard-to-stretch paper or wet-laid synthetic fiber paper, the holding force does not change even if the tissue paper is repeatedly taken out and the remaining amount of the tissue paper is reduced. Therefore, the tissue paper does not slip into the tissue paper carton.

In order to hold one set of the tissue paper thus drawn out, the angle between the branch slit 7b and the extension of the longitudinal center line of the longitudinal slit 7a must be 10 to 10 °.
It is necessary that the angle is 80 degrees, and when the angle is less than 10 degrees, the operation of pulling out the tissue paper is repeated so that the triangular or deformed triangular portions 9 on both sides which serve to hold the tissue paper to be drawn out become sharp acute triangles. In the meantime, the initial shape cannot be maintained, and the holding effect of the tissue paper is reduced. When the angle exceeds 80 degrees, the height of the triangular or modified triangular portions 9 on both sides is almost lost, and the triangular or modified triangular shapes on both sides are reduced. This is because it is similar to the case where the portion 9 is not provided.

The branch slit 7b extends to a position where the branch slit 7b is not exposed to the take-out opening 6, and its edge must be located in the annular bonding area or welding area 4, respectively. With such a configuration, the phenomenon that the branch slit 7b is damaged can be prevented.

If the paper or wet-processed synthetic paper constituting the window-attaching sheet 5 is too thick, the trapezoidal or deformed trapezoidal portion 8 and the triangles on both sides as described above when performing the operation of pulling out the tissue paper. Since each of the deformed triangular portions 9 cannot be displaced around its base,
Preferably SP8124 basis weight by ₁₉₇₆ "meter basis weight measurement method of paper" is 10~70g / m ^2, also very soft and the holding action of the easily deformed to tissue paper in performing the operation to pull out the tissue paper The stiffness according to JISP 8143 ₁₉₆₇ “Stiffness test method for paper by its own weight bending method” (Clark method) is preferably 3.0 to 90 in the vertical direction and 1.5 to 40 in the horizontal direction.

When the paper constituting the window-attaching sheet 5 or the wet-processed synthetic paper is paper, any type of paper can be used as long as it has the above-mentioned basis weight and Clark stiffness. Used paper selected from one of printing paper such as glassine paper, kraft paper, Kent paper, Indian paper, etc., calligraphy paper, wrapping paper, processed base paper, and water-resistant liner, and which can be easily recycled. JISP8113 ₁₉₉₄
When the tensile strength in the longitudinal direction in the "test method for tensile strength of paper and paperboard" is 1 to 10 km in tear length and 1 to 6 km in transverse tensile strength, the holding power of the tissue paper is sufficient and There is no problem in durability, and when the material forming the window-attaching sheet 5 is synthetic fiber paper, pulp fiber and rayon fiber are used as main raw materials, and vinylon fiber, P
One or more fibers selected from VA fibers and other thermoplastic resins are used as an auxiliary material, to which a dispersant and / or a paper strength enhancer is added. JISP 8113 ₁₉₉₄ "Paper and paperboard tensile strength" In the "test method", the tensile strength in the longitudinal direction is 1 to 10 km, and the tensile strength in the transverse direction is 1
If it is ~ 6 km, the holding power of the tissue paper is sufficient and there is no problem in durability.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a carton for tissue paper according to the present invention will be described with reference to embodiments. As an example, the following paper or synthetic paper was used as the window-attaching sheet 5 and the outlet 7 was used.
As shown in FIGS. 4 to 8, the longitudinal slit 7a is a slit or a short side having an arc shape, the cut portion having a width of 8 mm or 10 mm, and the length between both ends thereof is 100 to 130 mm.
The length exposed to the take-out opening 6 of the slit 7b is 20 to 35 mm, the angle formed with the extension of the longitudinal center line of the longitudinal slit 7a is 45 to 55 degrees, and the edges of the branch slits 7b are respectively attached to the window sheet. A tissue paper carton was positioned in an annular bonding area or welding area 4 for fixing 5 to the back side of the upper surface 2, and the dropback, slit tear, and initial tear of the tissue paper were measured.
As a comparative example, synthetic paper and a polyethylene sheet were used, and dropback, slit tear, and initial tear of tissue paper were measured in the same manner for a conventional method using only a 150 mm linear slit. Table 1 shows the results.

As the synthetic fiber paper, softwood kraft pulp fiber: 45%, rayon fiber: 40%, vinylon fiber: 10%, PVA fiber: 5%, and a dispersing agent were blended, and the resulting paper was made by a round paper machine. Basis weight: 30.5 g / m ² was used. The characteristics of this synthetic paper are as follows: thickness: 70 μm, density:
0.44 g / cm ³ , Tensile strength (break length) Length: 7.3k
m, tensile strength (break length) width: 1.8 km, stiffness (Clark method) length: 70, stiffness (Clark method) width: 2
It was 5.

As the paper, softwood kraft parf fiber: 70%, hardwood kraft parf fiber: 30%, a dispersant and a paper strength enhancer are blended, and the basis weight obtained by making a fourdrinier paper machine is as follows: 50 g / m ² was used. The characteristics of this paper are as follows: thickness: 60 μm, density: 0.8 g / cm ³ , tensile strength (break length), vertical length: 3.4 km, tensile strength (break length)
Width: 3.5 km, stiffness (Clark method) Length: 70, stiffness (Clark method) width: 45

[0022]

[Table 1]

As is apparent from the results shown in Table 1, in the case of a conventional tissue paper carton using a polyethylene sheet as the window-attaching sheet 5 (Comparative Example 2), dropback may occur. In the embodiment, almost no dropback occurs. Even when synthetic paper is used as the window-attaching sheet 5, in the case of a tissue paper carton having no branch slit (Comparative Example 1), not only dropback occurs but also slit tear occurs, and furthermore, Although the initial tear of the tissue paper occurred considerably, in the embodiment, the tear of the slit and the initial tear of the tissue paper did not occur at all. This proved the usefulness of the carton for tissue paper according to the present invention.

[0024]

As described in detail above, in the tissue paper carton according to the present invention, the tissue paper is taken out from the back side so as to cover a piece to be cut out by an annular perforation forming a take-out opening at a predetermined position on the upper surface. A window-attaching sheet having an outlet is fixed to the back surface of the upper surface by an annular adhesive area or a welding area, and a pop-up type tissue paper carton for storing a large number of sets of tissue paper in an overlapping state. The sheet is made of paper or synthetic paper made by wet paper making, and the outlet exposed at the take-out opening has a straight or wavy slit along the longitudinal direction or a deformed rectangle having a width of 5 to 10 mm in which the short side has an arc shape. A longitudinal slit consisting of a cut-like portion and at least two branches radially outwardly from both edges of the longitudinal slit
A branch slit forming a straight line and / or an arc-shaped curve, the branch slit having a length of 15 mm or more and an angle formed by an extension of a longitudinal center line of the longitudinal slit with 10 to 80 degrees. Therefore, since it is configured to extend to a position that is not exposed to the take-out opening and its edges are respectively positioned in the annular bonding area or the welding area, it can be used as used paper as it is, so that it has excellent recyclability. In addition to eliminating the tearing of the tissue paper at the beginning of the drawer, eliminating the tissue paper dropping at the end of taking out when the tissue paper is low, eliminating the tearing of the window sheet and the damage of the outlet This is an excellent effect, and is of great industrial value.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a cutout piece is cut out by an annular perforation formed at a predetermined position on an upper surface and a takeout opening is opened in an embodiment of a tissue paper carton according to the present invention.

FIG. 2 is a perspective view showing a state in which the tissue paper drawn from the tissue paper carton according to the present invention shown in FIG. 1 is held in an outlet.

FIG. 3 is a rear view of the upper surface of one embodiment of the tissue paper carton according to the present invention.

FIG. 4 is a rear view of the upper surface of another embodiment of the tissue paper carton according to the present invention.

FIG. 5 is a rear view of the top surface of still another embodiment of the carton for tissue paper according to the present invention.

FIG. 6 is a rear view of the upper surface of still another embodiment of the carton for tissue paper according to the present invention.

FIG. 7 is a top rear view of still another embodiment of the tissue paper carton according to the present invention.

FIG. 8 is a top rear view of still another embodiment of the tissue paper carton according to the present invention.

FIG. 9 is a perspective view of a conventional carton for tissue paper.

FIG. 10 is a rear view of the upper surface of the conventional tissue paper carton.

[Explanation of symbols]

 Reference Signs List 1 Carton for tissue paper according to the present invention 2 Top surface 3 Perforation 4 Adhesion or welding area 5 Window attachment sheet 6 Extraction opening 7 Extraction opening 7a Longitudinal slit 7b Branch slit 8 Trapezoidal or deformed trapezoidal portion 9 Triangular or modified triangular part

Claims (4)

[Claims] A take-out opening (7) for taking out tissue paper so as to cover a cut-out piece cut by an annular perforation (3) forming a take-out opening (6) at a predetermined position on an upper surface (2). A window-attaching sheet (5) having an annular adhesive or welding area (4) fixed to the back surface of the upper surface (2), and a carton for a pop-up tissue paper for storing a large number of sets of tissue paper in a superimposed state. Wherein the window-attaching sheet (5) is made of paper or wet-processed synthetic paper, and an outlet (7) exposed at the outlet (6) has a linear or wavy slit along the longitudinal direction. Or a long slit (7a) composed of a deformed rectangular cut portion having a short side having an arc shape and having a width of 5 to 10 mm, and at least two straight lines radially branching outward from both edges of the long slit (7a); /
Or a branch slit (7b) having an arcuate curve, the length of the branch slit (7b) is not less than 15 mm and the angle between the branch slit (7a) and the extension of the longitudinal center line of the longitudinal slit (7a) is formed. 10 to 80 degrees, extending to a position not to be exposed in the take-out opening (6), the edges of which are respectively located in the annular bonding area or the welding area (4). Carton for tissue paper (1). 2. The paper constituting the window-attaching sheet (5) or the wet-processed synthetic fiber paper has a basis weight of 10 to 70 g / m ² according to JISP8124 ₁₉₇₆ “Measurement method of paper basis weight”, and JISP8143. _{1967 The} carton (1) for tissue paper according to claim 1, wherein the stiffness according to the "Stiffness test method of paper by its own weight bending method" (Clark method) is 3.0 to 90 in the longitudinal direction and 1.5 to 40 in the lateral direction. 3. When the paper constituting the window-attaching sheet (5) or the wet-processed synthetic paper is paper, the paper is easily recyclable printing paper, calligraphy paper, wrapping paper, processed base paper,
JISP8, selected from one of the waterproof liners
113 ₁₉₉₄ The tensile strength in the longitudinal direction in the "test method for tensile strength of paper and paperboard" is 1 to 9 km in tear length, and the tensile strength in the transverse direction is 0.5 to 5 km in tear length. A carton (1) for the described tissue paper. 4. When the paper constituting the window-attaching sheet (5) or the wet-processed synthetic fiber paper is synthetic fiber paper, the synthetic fiber paper contains pulp fiber and rayon fiber as main raw materials and vinylon fiber, One or more fibers selected from PVA fibers and other thermoplastic resins are used as an auxiliary material, and a dispersant and / or a paper strength enhancer is added thereto.
₁₉₉₄ The tissue according to claim 1 or 2, wherein the tensile strength in the longitudinal direction in the "test method for tensile strength of paper and paperboard" is 1 to 10 km in tear length, and the tensile strength in the transverse direction is 1 to 6 km in tear length. Carton for paper (1).