JP2010006471A - Sanitary thin paper package, and outer film manufacturing method for sanitary thin paper package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent peeling off of a printing on the outer film of a pocket tissue using a satin-finished film. <P>SOLUTION: The packaging film for pocket tissue is constituted of a laminated film for which the satin-finished film treated with roughening process on both surfaces, a printing layer formed on one surface of the satin-finished film, and a transparent film for covering the printing layer are laminated. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sanitary thin paper packaging body in which a plurality of sanitary thin papers such as pocket tissue are folded and laminated to form a film.

Pocket tissue is a well-known pocket tissue in which sanitary thin paper is folded in a compact form. However, some of these pocket tissues contain a lotion tissue that improves the smoothness and smoothness by supporting chemicals on the base paper. is there.
Since the lotion tissue is recognized as a luxury product by consumers in comparison with a general tissue, the pocket tissue including the lotion tissue has a high-quality appearance.
As such a high-grade appearance and rubbing method, for example, a satin film is used as an exterior film for wrapping a tissue paper bundle.
This satin film has a matte translucent appearance with a finely embossed surface to roughen the surface. By using this, the product has a unique feel and a polished glass-like appearance.
Japanese Patent Laying-Open No. 2005-096865

However, since the pocket tissue is used by carrying it in a bag or a pocket of clothes, it is used in an environment where it rubs or collides with other things in the pocket or bag.
And in that case, especially when it is the exterior of the satin film, the printing may be easy to peel off due to the roughening of the surface, and the printing may peel off and the appearance may deteriorate, or the peeled ink may adhere to the bag or pocket It may stain cocoons.
In addition, the pocket tissue has a flat cushion-like shape, and is generally shaped with a slit-shaped outlet extending over the entire length in the center of one side. Since the stiffness of the surface is low due to the roughening of the surface, it is difficult to maintain the closed shape of the slit-shaped opening after opening. The paper sometimes came out. In particular, this phenomenon was remarkable when the number of remaining tissue papers decreased.

On the other hand, when a laminated film is conventionally used as an exterior film in this type of pocket tissue, a plurality of films are generally used mainly because it is inexpensive regardless of whether or not a satin film is used. What was laminated | stacked by the dry laminating method of laminating and bonding with an adhesive agent has been used.
However, since the dry laminating method uses an adhesive containing a solvent such as ethyl acetate for adhesion between films, the residual amount of this solvent diverges from the laminated film over time and is applied to the thin paper that is contained in the package itself or in the package. In some cases, an unpleasant odor was felt during use. Furthermore, there was a risk of adverse effects on the human body.
And the problems such as odor caused by such solvents are particularly worrisome for users because tissue paper is mainly used for biting the nose, and of course, even with ordinary pocket tissue However, in the case of a relatively expensive product that includes a lotion tissue and imparts a high-class feeling due to the design of the satin film, the quality demands of consumers are high and improvements are required.
Therefore, the main problem of the present invention is that there is no problem of deterioration in appearance such as peeling off printing even if it is carried in a bag or a pocket of clothes, and the sanitary thin paper contained after opening is intended from the opening. An object of the present invention is to provide a sanitary thin paper packaging body that does not fly out and further improves problems such as odor of the exterior film and a method for producing the exterior film used therefor.

The present invention that has solved the above problems is a sanitary thin paper packaging body having a slit-shaped outlet portion or outlet forming portion on at least one surface, in which a plurality of folded sanitary thin paper sheets are laminated and packaged by an exterior film. Because
The exterior film is a laminate in which a satin film having at least one surface roughened, a printed layer formed on the roughened surface, and a transparent film covering the printed layer are laminated. It is a sanitary thin paper packaging body characterized by being a film.
According to the present invention, since the printing layer is located between the satin film and the transparent film, the printing is not peeled off.

In addition, a transparent film that has not been processed is laminated on the satin film, so that the stiffness of the entire film is secured, and the slit shape of the outlet is easily maintained, and the thin paper may pop out of the outlet unintentionally. Disappear.
The satin film preferably has a haze value of 20 to 100%, and the transparent film preferably has a haze value of 0.1 to 20%.
Within this range, the satin film has a polished glass-like milky white, translucent design and excellent appearance.

  It is also desirable that the transparent film be packaged facing the sanitary thin paper. Since the surface of the transparent film which has not been subjected to the matte finish is smooth, the fluffing of the tissue paper contained therein is suppressed. Furthermore, if the satin film is treated with both sides of the matte surface, the transparent film is positioned facing the sanitary thin paper in this way, and the satin film becomes the outer surface. The appearance is high-class.

On the other hand, it is desirable that the satin film has a thickness of 20 to 70 μm and the transparent film has a thickness of 10 to 50 μm.
The firmness of the film is surely developed, and the slit shape of the outlet is more easily maintained.

On the other hand, it is desirable that the satin film and the transparent film on which the printing layer is formed are laminated and bonded via a transparent resin layer.
The present invention in which lamination of a satin film and a transparent film is made by a resin layer formed by an extrusion molding method is a conventional lamination in which a satin film and a transparent film are laminated by an adhesive layer by a dry lamination method Compared with a film, the odor component which may be harmful to a human body and gives an aversion is remarkably reduced.
This is because a conventional laminated film having an adhesive layer by a dry laminating method contains a solvent typified by ethyl acetate in the adhesive used for forming the adhesive layer, and therefore the solvent contained in the adhesive is a laminated film. However, in the present invention in which the resin layer is formed directly from the molten resin without using an adhesive, there is no such solvent divergence.

  Therefore, the packaging body of the present invention has much less odor components in the exterior film than the conventional product, so it does not move to the thin paper in which the odor component is contained, and the whole packaging body or when using the thin paper It can be used comfortably.

Furthermore, the transparent resin layer is preferably formed of a polyethylene resin. Polyethylene resin is inexpensive, requires no solvent, can be melted only by temperature conditions, and is easily formed into a layer by extrusion molding. Furthermore, the transparency is high and the printed layer becomes unclear or visible due to the formation of the resin layer. The resin layer is preferably formed of a polyethylene resin because it does not become difficult.
On the other hand, it is preferable that the transparent resin layer is formed of a low odor resin. The low odor resin is, for example, a material that suppresses the emission of odor components or exhibits adsorption performance, such as those obtained by kneading other porous materials such as zeolite that adsorb odor components in the resin, or has a volatile component content. Less than 1%.
On the other hand, it is desirable that the haze value of the ground portion of the exterior film is 20 to 100%. A high-class feeling due to the satin film is developed as the entire exterior film.

On the other hand, the outer packaging film of the present invention is a sanitary thin paper packaging body having a slit-shaped outlet portion or an outlet forming portion on at least one surface, in which a plurality of folded sanitary thin papers are laminated and packaged by the outer film. A method for producing the exterior film in
A satin film in which at least one surface is roughened and a printed layer is formed on the roughened surface, and a transparent film that covers the printed layer are passed through a transparent molten resin by an extrusion laminating method. Manufactured by stacking and integrating.
In this method, since an adhesive containing a solvent is not used, it is possible to manufacture an exterior film that does not cause the solvent to diverge.

Moreover, like the above-mentioned sanitary thin paper package, in this manufacturing method, it is desirable that the haze value of the satin film is 20 to 100% and the haze value of the transparent film is 0.1 to 20%.
Further, the satin film has a thickness of 20 to 70 μm, the transparent film preferably has a thickness of 10 to 50 μm, and the transparent molten resin is preferably a polyethylene resin. Furthermore, it is desirable that the transparent molten resin is a low odor resin.

  According to the present invention as described above, there is no problem of deterioration of appearance such as peeling of printing even if it is carried in a bag or a pocket of clothes, and the sanitary thin paper contained after opening is not intended from the opening. A sanitary thin paper package that does not pop out is provided.

Next, embodiments of the present invention will be described in detail below with reference to the drawings.
FIG. 1 is a perspective view of a pocket tissue 1 according to the present invention. FIG. 2 is a schematic view showing a cross section of the exterior film 10. FIG. 3 is a schematic view showing a more detailed example of the cross section of the exterior film 10.
As shown in FIG. 1, the pocket tissue 1 of the present embodiment is a package 20 in which a bundle 20 in which a plurality of folded tissue papers are stacked is wrapped with an exterior film 10.

A conventionally known tissue paper 20 can be used. A ply structure of 2 to 4 plies is desirable.
Moreover, the raw material pulp of tissue paper is not specifically limited. For example, what mixed NBKP and LBKP is preferable. Waste paper pulp may be blended as appropriate, but it is preferably composed of only NBKP and LBKP in terms of texture and the like. In that case, the blending ratio is NBKP: LBKP = 30: 70 to 50:50. In particular, NBKP: LBKP = 40: 60 is desirable.
The tissue paper itself may be manufactured through a known papermaking process, specifically, a wire part, a press part, a dryer part, a size press, a calendar part, and the like. There is no limit in the present invention.
On the other hand, suitable Beitsubo of the tissue paper, 20 to 80 g / m ² as a whole regardless of the ply structure, preferably 26~40g / m ^2. In addition, the rice tsubo here means the thing by the rice tsubo measuring method of JIS P 8124.

  Moreover, it is preferable that the paper thickness of tissue paper shall be 60-250 micrometers. As a measuring method of the paper thickness, it shall be measured using a dial thickness gauge (thickness measuring instrument) “PEACOCK G type” (manufactured by Ozaki Seisakusho) under the conditions of JIS P8111. Specifically, confirm that there is no dust, dust, etc. between the plunger and the measuring table, lower the plunger on the measuring table, move the dial thickness gauge memory to adjust the zero point, then Raise the plunger, place the sample on the test bench, slowly lower the plunger and read the gauge at that time. At this time, only the plunger is placed. The paper thickness is an average value obtained by performing measurement 10 times.

On the other hand, a tissue paper suitable as the pocket tissue 1 according to the present invention is one in which a chemical solution is applied and supported on a base paper called a lotion tissue.
This lotion tissue is recognized as a high-quality product, and it is highly significant that the exterior film has a high-class feeling. In addition, the lotion tissue is softer and less stiff than general tissue paper, and thus tends to cause fluff due to rubbing and tends to pop out from the opening. Therefore, the effects of the present invention, such as the fuzz prevention effect and the pop-out prevention effect in the present invention, become even more remarkable when this lotion tissue is employed.

  In addition, the kind of chemical | medical solution to apply | coat in the case of setting it as a lotion tissue is not specifically limited. Known ones can be used. Examples are softeners and moisturizers. More specific examples of the softener include anionic surfactants, nonionic surfactants, cationic surfactants and zwitterionic surfactants. An anionic surfactant is particularly suitable.

  Examples of humectants include polyhydric alcohols such as glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, and polyethylene glycol; sugars such as sorbitol, glucose, xylitol, maltose, maltitol, mannitol, and trehalose; Derivatives thereof, higher alcohols such as cetanol, stearyl alcohol and oleyl alcohol, liquid paraffin, collagen, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, ceramide and the like can be mentioned.

The lotion tissue is a non-wet tissue and is distinguished from a so-called wet tissue. In the present invention, wet type wet tissue is not a target.
In addition, other properties such as water disintegration property of tissue paper are appropriate design matters and are not limited in the present invention.

On the other hand, the folding form of the tissue paper to be included is not particularly limited, but a known so-called pocket tissue folding is preferable. This can be folded by a folder called a pocket tissue folder.
To exemplify this folded shape, first, the opposing edges of the square tissue paper are folded back into an outer trifold shape, then the edge is folded outward to form a zigzag fold, and further in a direction perpendicular to the folded edge. The shape is folded in half.
On the other hand, as described above, the number of tissue papers in the pocket tissue 1 of the present embodiment is not limited, but is generally about 6, 8, or 10 sheets.
On the other hand, in the pocket tissue packaging method according to the present invention, the tissue paper bundle 20 is wrapped with the exterior film 20 so that the edges partially overlap, and then the openings at both ends are fused such as heat sealing or ultrasonic sealing. And then sealed (in FIG. 1, the heat seal portion is denoted by reference numeral 2).

  The shape of the pocket tissue 1 of this embodiment manufactured in this way is a flat cushion-like shape as shown in FIG. The size is about 75 mm in the longitudinal direction, 105 mm in the width direction, and about 10 mm in thickness. In the present invention, it is desirable that the size is about ± 10 mm from this size. This is because the size is excellent in portability, and problems such as popping out from the opening are likely to occur, so that the effects of the present invention can be sufficiently obtained.

  On the other hand, in the pocket tissue 1 of this embodiment, the outlet forming portion 30 is formed on the upper surface over substantially the entire width in the same manner as in known products. The outlet forming part is formed by, for example, a perforation line. By slitting the perforation line, a slit-shaped outlet is formed.

  Here, the pocket tissue 1 according to the present invention described above is characteristically as shown in FIG. 2 and FIG. 3, characterized in that the exterior film 10 has a satin film 11 subjected to a printing process on one side; The transparent film 13 provided so as to cover the printed surface has a laminated structure, and preferably the transparent resin film 13 has a structure packaged facing the tissue paper bundle 20. Yes. In the present invention, the non-near surface of the satin film 11 may be structured so as to face the tissue paper bundle 20.

  The satin film 11 may be a satin surface whose surface on which the printing layer 12 is formed is roughened by at least a printing process, but a preferable one is a textured surface on both sides. When the pear-finished film 11 has a pear-finished surface on both sides, the outer surface of the pocket tissue 1 is also pear-ground, so that a smooth and smooth feel can be obtained when touching the hand, and a sense of quality can also be felt from the touch point. Become.

  Here, the type of the satin film 11 is not particularly limited. A known satin film can be used. The satin film 11 is formed, for example, by subjecting the front and back surfaces of the base film to a roughening process such as fine embossing, mat roll processing, and sand blasting (mat processing). Examples of the base film include a polypropylene film, a polyethylene film, and a polyimide resin film, but a polyethylene film is preferable because it is inexpensive.

  Here, the haze value of the satin film 11 is desirably 20 to 100%. The included tissue paper has a semi-transparent, polished glass-like appearance that can be visually recognized.

The thickness of the satin film is preferably 20 to 70 μm in terms of printability and handleability.
On the other hand, the printing with respect to the satin film 11 can use the printing technique with respect to the conventional satin film. The pattern, pattern, character, etc. formed by printing are not particularly limited. An appropriate pattern or the like may be printed.

On the other hand, the transparent film 13 can be exemplified by a polyethylene film, a polypropylene film, a polyethylene terephthalate film, a polyvinyl alcohol film, a polystyrene film, and an ethylene-vinyl alcohol copolymer film. In particular, an inexpensive and highly transparent polyethylene film is suitable.
The transparent film 13 preferably has a haze value in the range of 0.1 to 20% so as not to hinder the appearance of the satin film, and further has a thickness of 10 in order to develop the stiffness of the entire film. It is desirable that it is ˜50 μm.
Further, the transparent film 13 has at least a surface in contact with the tissue paper bundle 20 in a state of high smoothness that is not roughened. It is only necessary to have the same level of smoothness as that of a film used for a general pocket tissue that does not use a satin film.

  In addition, about lamination | stacking of the satin film 11 and the transparent film 13, it follows the manufacturing method of a laminated film. For example, it can be laminated and integrated by a laminating technique in which a transparent film is laminated and integrated on a printed satin film such as a dry laminating method, a hot melt method, an extrusion laminating method, or a thermal laminating method.

Here, the particularly preferred exterior film 10 of the present invention is one in which a satin film 11 and a transparent film 13 are laminated and bonded via a transparent resin layer 14 as shown in FIG.
The exterior film 10 bonded through the transparent resin layer 14 can be formed by an extrusion laminating method. More specifically, the films 11 and 13 are laminated and integrated after elution or elution of the molten resin on the printed layer 12 forming surface of the satin film 11 or the transparent film 13 using a T-die melt extrusion molding equipment. It can be formed by an extrusion laminating method. In addition, the transparent resin layer 14 and the transparent film layer 11 can be simultaneously formed on the printed layer 12 forming surface of the satin film 11 by coextrusion.
Here, although the said transparent resin layer 14 can be formed using a known transparent resin, it is desirable that they are a transparent polyethylene resin and a transparent polypropylene resin, and it is especially desirable that it is a transparent polyethylene resin.

Furthermore, the exterior film 10 of the embodiment in which both the films 11 and 13 are laminated and bonded through the resin layer by the extrusion laminating method has much less volatile components than the conventional laminated film containing an adhesive, and has an odor or the like. However, it is more preferable that the transparent resin forming the resin layer is a low odor resin.
The low odor resin is a resin designed so that the amount of volatile organic components contained in the resin is extremely small. Here, in the present invention, a resin having a volatile organic substance content of less than 1% is defined as a low odor resin in the present invention.
In addition, it is desirable that the haze value of the ground portion of the exterior film 10 is 20 to 100%, like the satin film, so that a polished glass-like high-quality feeling is expressed by the haze value of the satin film. If the above-mentioned haze value satin film and transparent film are used, the exterior film usually has this haze value. Here, the ground portion means a portion having no printed pattern or the like.

  In the pocket tissue 1 according to the present invention which employs the exterior film 10 having the characteristic laminated structure thus formed, the printed layer 12 is covered with the transparent film 13, so that it is placed in a bag or a pocket of clothes. Even if it is carried around, the problem of deterioration of the appearance such as peeling of the exterior printing does not occur, and since the stiffness is ensured by the lamination of the films 11 and 13, the outlet is easy to maintain the slit state after opening, The tissue paper 1 to be included is difficult to jump out unintentionally.

<Test example>
The sensory test was done about how to feel an odor about Example 1 and 2 which is an exterior film of this invention, and Comparative Examples 1 and 2 which are not the exterior films of this invention.
Example 1 has a structure of satin polyethylene film / ordinary polyethylene resin / polyethylene film, which was prepared by an extrusion laminating method.
Example 2 has a structure of satin polyethylene film / low odor polyethylene resin / polyethylene film, which was prepared by an extrusion laminating method.
In Comparative Example 1, a surface mat printed polypropylene film and a polypropylene film are laminated by a dry laminating method.
In Comparative Example 2, a surface-printed polyethylene resin and a mat coat film are laminated by a dry laminating method.

  In the test, 13 subjects were asked to smell the film, and whether or not a film odor or a solvent odor was felt was evaluated: “Evaluation 1: No odor is felt, Evaluation 2: Some odor is felt but uncomfortable. It was carried out by a method of evaluating whether it falls under “Evaluation 3: Feeling odor and feeling uncomfortable”. The results were as shown in Table 1 below.

  As a result of the test, for Examples 1 and 2, a large number of evaluations were "Evaluation 1: No odor is felt, Evaluation 2: Some odor is felt but not uncomfortable" In Comparative Examples 1 and 2, the majority of evaluations were “Evaluation 3: Feeling odor and feeling uncomfortable”. From the result of this test, it can be understood that the use of the exterior film having the structure according to the present invention improves the problem of odor.

  INDUSTRIAL APPLICABILITY The present invention can be used for a package in which a bundle obtained by folding and laminating a small sheet material is film-wrapped.

It is a perspective view of the pocket tissue concerning this invention. FIG. 3 is a diagram showing an internal structure of the first embodiment. It is sectional drawing which shows the detailed example of an exterior film.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Pocket tissue, 2 ... Heat seal part, 10 ... Film, 11 ... Pear-skin film, 12 ... Printing layer, 13 ... Transparent film, 14 ... Transparent resin layer, 20 ... Tissue paper (tissue paper bundle), 30 ... Opening formation Department.

Claims (13)

A sanitary thin paper packaging body in which a plurality of folded sanitary thin paper sheets are laminated and packaged by an exterior film, and has a slit-shaped outlet portion or an outlet forming portion on at least one surface,
The exterior film is a laminate in which a satin film having at least one surface roughened, a printed layer formed on the roughened surface, and a transparent film covering the printed layer are laminated. A sanitary thin paper package characterized by being a film.   The sanitary thin paper package according to claim 1, wherein the satin film has a haze value of 20 to 100%, and the transparent film has a haze value of 0.1 to 20%.   The sanitary thin paper packaging body according to claim 1, wherein the transparent film is packaged facing the sanitary thin paper.   The sanitary thin paper package according to claim 1, wherein the satin film has a thickness of 20 to 70 µm, and the transparent film has a thickness of 10 to 50 µm.   The sanitary thin paper packaging body according to any one of claims 1 to 4, wherein a satin film having a printed layer and a transparent film are laminated and bonded via a transparent resin layer.   The sanitary thin paper packaging body according to claim 5, wherein the transparent resin layer is formed of a polyethylene resin.   The sanitary thin paper packaging body according to claim 5 or 6, wherein the transparent resin layer is formed of a low odor resin.   The sanitary thin paper packaging body according to claim 1, wherein the ground portion of the exterior film has a haze value of 20 to 100%. A method for producing the exterior film in a sanitary thin paper package having a slit-shaped outlet or outlet forming portion on at least one surface, in which a plurality of folded sanitary thin papers are laminated and packaged by an exterior film. And
A satin film in which at least one surface is roughened and a printed layer is formed on the roughened surface, and a transparent film that covers the printed layer are passed through a transparent molten resin by an extrusion laminating method. A method for producing an exterior film for sanitary thin paper packaging, characterized by being laminated and integrated.   The haze value of the said satin film is 20 to 100%, and the haze value of a transparent film is 0.1 to 20%, The manufacturing method of the exterior film for sanitary thin paper packaging bodies of Claim 9.   The method for producing an exterior film for sanitary thin paper packaging according to claim 9, wherein the satin film has a thickness of 20 to 70 μm and the transparent film has a thickness of 10 to 50 μm.   The method for producing an exterior film for sanitary thin paper packaging according to claim 9, wherein the transparent molten resin is a polyethylene resin.   The method for producing an exterior film for sanitary thin paper packaging according to claim 9, wherein the transparent molten resin is a low-odor resin.

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