JPH05270542A - Inner liner-decorative frame for packaging box - Google Patents

Abstract

PURPOSE:To obtain an inner liner-decorative frame for a packaging box, whose decorative sheet adhered on the surface of an inner liner-frame base material can be peeled off from the base material. CONSTITUTION:A decorative sheet 2 is laid and adhered on the surface of an inner liner-frame base material 1 with an adhesive layer 3 and is free to be peeled off. The adhesive layer 3 consists of an adhesive and an anti-adhesive component. The adhesive is preferably of a heat-sensitive type, and fluoride resin, silicone or wax is preferably used as the anti-adhesive component. The preferable bonding strength between the inner liner-frame base material 1 and the decorative sheet 2 is in a range of 40-200g/20mm width. As for the decorative sheet 2, cloth, plastic film, synthetic paper, non-woven fabric or others can be used. Therefore, the decorative sheet 2 is peeled off from the inner liner-frame base material 1 after a packaging box is used, and can be reused for another purposes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insole decorative frame for a packaging box, which can peel off a decorative sheet attached to the surface of an insole frame base material.

[0002]

2. Description of the Related Art In recent years, problems of global resources and pollution of garbage have been greatly highlighted, and various studies have been made on recycling and reuse of resources. To date, wrapping boxes for gifts such as ham and liquor have "insole makeup frame" placed inside the boxes for the purpose of protecting the contents from the shock during transportation and enhancing the decorativeness. Is used. The most common insole decorative frame is one in which a decorative sheet such as cloth, film or non-woven fabric is formed on the surface of a cardboard paper product or a plastic molded product by forming inner folds so that the contents can enter. Yes, the insole decorative frame for ham is called "ham-guess", the insole decorative frame for sake is called "liquor-guess", and the ones with cloth attached are collectively called "cloth-guess".

Up to now, the decorative sheets that have been used for the protection and decoration of the contents in such cloth-guess (insole decorative frame) include rayon, polyester,
In addition to various fabrics such as acetate satin fabric and polyester taffeta fabric, there are a wide range of materials such as non-woven fabrics, vapor-deposited films, and synthetic papers. It was customary to bond the insole frame base material (corrugated cardboard, etc.) and the decorative sheet so as not to separate them. In addition, it was a design standard that the insole frame base material and the decorative sheet are not peeled off even when they are fixed by a physical method. In particular, in the case of an insole decorative frame using cloth as a decorative sheet, the adhesive applied to the surface of the insole frame base material is entangled in the fibers constituting the cloth, and the adhesive is applied to the center of the cross section of the cloth. It will be bonded in a state that it reaches up to, and since the adhesive remains on the cloth side after peeling,
It was difficult to reuse the peeled cloth for other purposes.

Therefore, in the case of such a conventional insole decorative frame for a packaging box, there is no choice but to dispose of it by a waste treatment after use, and it is not possible to recover the corrugated cardboard of the insole frame base material as used paper and recycle it. .. The cause of this is that the adhesive used when manufacturing the insole decorative frame is a starch-based natural resin adhesive or a polyvinyl alcohol, vinyl acetate, ethylene vinyl acetate, acrylic, rubber or other synthetic resin. It is mentioned that it is a system adhesive, all of these adhesives,
The adhesive strength between the insole frame base material and the decorative sheet is high, the two are completely adhered (fixed) to each other, and the decorative sheet cannot be peeled off without destroying the insole frame base material.

As a method of obtaining a weak adhesive force by using such an adhesive, the amount of resin in the adhesive is reduced, or the adhesive is adhered under such a bad condition that the adhesiveness is hindered to cause a defective adhesion. There are cases in which the effects and phenomena similar to the decrease in adhesiveness can be obtained. However, it is extremely difficult to stably obtain a predetermined adhesive force by using such a method, and it is expected that the residual coating film of the adhesive easily adheres to the insole frame base material or the decorative sheet. It may lead to a bad accident and is not the preferred method. As described above, up to now, no insole decorative frame for packaging boxes has been proposed which can peel off the decorative sheet attached to the surface without destroying the insole frame base material.

[0006]

DISCLOSURE OF THE INVENTION The present invention improves the above-mentioned drawbacks and allows a decorative sheet attached to the surface of an insole frame base material to be easily peeled off, so that the decorative sheet can be reused. An object of the present invention is to provide an insole decorative frame for a simple packaging box.

[0007]

The decorative insole frame for a packaging box according to the present invention is such that a decorative sheet is arranged so as to cover the surface of an insole frame base material. And the decorative sheet are attached in a peelable manner via an adhesive layer, and the adhesive layer comprises an adhesive and an adhesion-inhibiting component. That is, in the present invention, by forming an adhesive layer in which a component having a property of inhibiting the adhesiveness (adhesion-inhibiting component) is dispersed in the adhesive, the adhesive layer between the insole frame base material and the decorative sheet is formed. The adhesive strength is adjusted to a peelable size, and the adhesive sheet does not remain on the decorative sheet side when peeled off, so that the decorative sheet can be reused.

In the present invention, in the above-mentioned insole decorative frame for packaging box, the adhesive is a heat-sensitive adhesive, and the adhesion-inhibiting component is selected from the group consisting of fluororesin, silicone and wax. Furthermore, the adhesive strength between the insole frame base material and the decorative sheet is 40 to 200 g / 20 m.
It is also characterized by having a width of m.

First, FIGS. 1 and 2 show a sectional structure (see FIG. 1) and a use state (see FIG. 2) of the insole decorative frame for a packaging box of the present invention.
Reference) to illustrate the invention. As shown in FIG. 1, the packaging box insole decorative frame of the present invention is composed of an insole frame base material 1 having an opening on the upper surface side, and a cloth-like decorative sheet 2, The entire upper surface of the base material 1 is covered with a decorative sheet 2, and the decorative sheet 2 forms a recessed portion with a slack in the opening portion of the insole frame base material 1. Then, the desired contents can be stored in the recessed portion. Moreover, the insole frame base material 1 and the decorative sheet 2 are bonded to each other on the side surface side (see FIG. 1) via the adhesive layer 3 composed of an adhesive and an adhesion-inhibiting component. However, the adhesive layer 3 may also be provided on the upper surface side of the insole frame base material 1.

In the present invention, the adhesive strength between the insole frame base material 1 and the decorative sheet 2 does not peel off during packaging, packing, and boxing, but it is easy to use by hand after using the packaging box. The adhesive strength (peeling strength) is adjusted to a peelable strength, and the adhesive strength (peeling strength) is appropriately selected according to the application, but is generally 40 to 200 g / 20 mm width (pulling speed 150
mm / min., peeling angle 180 °)), and a particularly preferable range is 100 to 170 g /
It is 20 mm wide. This has an adhesive strength of 40g / 20m
If the width is less than m, the decorative sheet 2 may be peeled off during packaging work, and if the width is 200 g / 20 mm or more, a large force is required at the time of peeling and the corrugated board as the insole frame base material 1 is used. This is because, when the decorative sheet 2 is used, the material is destroyed when the decorative sheet 2 is peeled off.

In the present invention, the insole frame base material 1 and the decorative sheet 2 are used.
The adhesive layer 3 for adhering to and is different from the adhesive layer obtained from a conventional adhesive, and the adhesive layer 3 allows the insole frame base material 1 and the decorative sheet 2 to have adhesiveness and peelability. It has been modified. That is, the adhesive layer 3 in the insole decorative frame for a packaging box of the present invention contains an adhesive and an adhesion-inhibiting component, and the adhesive is an emulsion-based, solvent-based, hot-melt-based adhesive or the like. Adhesives can be used, especially polyvinyl alcohol-based, polyvinyl acetate-based, ethylene vinyl acetate copolymer (EVA) -based, polyacrylic acid ester-based, rubber-based, etc. synthetic resin adhesives and starch and other natural resins System adhesives are preferred. On the other hand, a fluororesin (Teflon), silicone, wax or the like can be used as an adhesion-inhibiting component added to adjust the adhesive strength between the insole frame base material 1 and the decorative sheet 2 and impart peelability.

In the present invention, the solid content weight ratio of the adhesive and the adhesion-inhibiting component in the adhesive layer 3 is appropriately adjusted within the range of 100: 0.01 to 25 depending on the kind of the adhesive used. In order to form the adhesive layer 3 having such a composition ratio, the solid content of the adhesive is 10 to 100%, and the solid content of the adhesion-inhibiting component (release agent, release agent) is 1 to 1. What is 100% is uniformly mixed so that the solid content weight ratio becomes the above-mentioned ratio, and the obtained dispersion liquid may be applied onto the insole frame base material 1. At this time, particularly when the adhesive is a EVA, acrylic, or rubber-based synthetic resin heat-sensitive adhesive, 100 parts by weight of a dispersion liquid containing such an adhesive in a ratio of 10 to 60%, It is general to mix 0.1 to 25 parts by weight of a release agent or a release agent containing the above-mentioned adhesion-inhibiting component in a ratio of 10 to 100%, and when the adhesion-inhibiting component is silicone, Generally, 0.1 to 25 parts by weight of a dispersion liquid containing 50% of silicone is generally mixed with 100 parts by weight of the dispersion liquid containing the adhesive in a proportion of 50%. In the insole of the present invention,
By forming the adhesive layer 3 containing the adhesive and the adhesion-inhibiting component in the above composition ratio, stable adhesion can be obtained at low cost. In addition, in the present invention, the thickness of the adhesive layer 3 is appropriately adjusted according to the type and mixing ratio of the adhesive and the adhesion-inhibiting component to be used, and is not particularly limited. It suffices if the above-mentioned adhesive strength is obtained.

In the present invention, the material of the insole frame base material 1 is not particularly limited, but as a general material,
Examples include paperboard (cardboard, etc.) and plastic moldings. On the other hand, the material of the decorative sheet 2 bonded to the surface side of the insole frame base material 1 is not particularly limited, but cloth, non-woven fabric, plastic film, synthetic paper, etc. are preferable. The insole decorative frame for a packaging box of the present invention can be produced by appropriately combining the insole frame base material 1 and the decorative sheet 2 according to the purpose of use. It is necessary to select the type and coating amount.

FIG. 2 shows a state when the contents are stored using the packaging box insole decorative frame of the present invention. Thus, the packaging box insole decorative frame of the present invention is shown. Bottom packaging box 5
The desired contents 4 are stored in the recessed portion of the decorative sheet 2 which is used while being put in the interior of the decorative sheet 2. Although FIG. 2 shows cylindrical contents, the insole of the present invention can store contents of various shapes. Therefore, when the shape of the opening on the upper surface side of the insole frame base material 1 is changed or when the decorative sheet 2 is attached to the insole frame base material 1, the makeup is appropriately changed depending on the shape and size of the contents 4. It is necessary to adjust how to loosen the seat 2.

Next, the steps of manufacturing the insole decorative frame for a packaging box of the present invention (when the insole frame base material 1 is corrugated cardboard and the decorative sheet 2 is cloth), particularly, the adhesion of the adhesive layer 3 and The peeling mechanism will be described with reference to FIG. First of all, Fig. 3 (a)
As shown in, the dispersion 6, in which the adhesive 6, the adhesion-inhibiting component 7 and the solvent molecule 8 are evenly dispersed, is applied onto the insole frame base material 1 and dried to form the adhesive 6 in the middle. A part of the components penetrates into the surface of the insole frame base material 1, and the remaining components form a coating film on the surface of the insole frame base material 1. In particular, in the present invention, as the adhesion-inhibiting component 7, it is preferable to use a silicone having a small specific gravity so that the silicone may easily float on the surface of the coating film.
Although water is particularly preferable as the above, an organic solvent may be used. By appropriately adding such solvent molecules 8, the coating amount (adhesive strength) can be easily adjusted. In addition, solvent molecule 8
Also increases the permeation adhesiveness of the adhesive 6 to the insole frame base material 1 and plays a role of assisting the mobility of each component.

When left as it is for a while, the solvent molecules (water) 8 evaporate, and the adhesion-inhibiting component 7 having a smaller specific gravity than the adhesive 6 floats on the surface side between the adhesives 6. Then, a laminated coating film in which an adhesion-inhibiting layer consisting of the adhesion-inhibiting component 7 is laminated on the layer consisting of the adhesive 6 is formed (see FIG. 3 (b)).

After that, a decorative sheet 2 (depicted as fibers constituting the cloth here) is placed on the insole frame base material 1 on which the above-mentioned laminated coating film is formed, and when heat-pressed,
The insole decorative frame for a packaging box of the present invention in which the decorative sheet 2 and the insole frame base material 1 are adhered by the adhesive state as shown in FIG. 3 (c) is obtained. As can be seen from this figure, the adhesion-inhibiting component 7 plays a role of adjusting the adhesive force by inhibiting the adhesion between the adhesive 6 and the decorative sheet 2, and the decorative sheet 2 is bonded to the adhesive interface by thermocompression bonding. The adhesive 6 that emerges is bonded with a peelable strength.

After using the packaging box insole decorative frame of the present invention having the adhesive structure shown in FIG. 3 (c), after putting it inside the bottom packaging box as shown in FIG. , Fig. 3
The decorative sheet 2 is peeled off as shown in (d).
In this case, since the adhesion-inhibiting component 7 is present on the adhesive surface of the adhesive layer 3 with the decorative sheet 2, the adhesive strength on the decorative sheet 2 side and the adhesive strength on the insole frame base material 1 side are different from each other. The adhesive strength on the sheet 2 side becomes smaller, and the adhesive layer 3 is peeled off in a state where all of the adhesive layer 3 remains on the insole frame base material 1 side. Therefore, it is possible to prevent the insole frame base material 1 from being broken (paper scrapes), and peel and collect the decorative sheet 2 with a light force.

In the present invention, when the adhesive layer 3 is formed, a dispersion containing the adhesive 6 and the adhesion-inhibiting component 7 is applied to the surface of the insole frame base material 1 and then the decorative sheet 2 is adhered. The drying curing time until it is allowed to occur is generally 1-2 seconds to several days at room temperature, and at the time when the solvent or water evaporates and the pre-coating is completed, the adhesion-inhibiting component 7 is generally applied to the upper surface layer portion. It is in an intervening state, and under this condition, the bonding process with the insole frame base material 1 is started. However, as shown in FIG. 3, the adhesion inhibiting component 7 is present in the upper surface layer of the adhesive layer 3 when silicone or the like having a smaller specific gravity than the adhesive 6 is used. If a material having a specific gravity, such as a fluororesin, is used, the adhesive 6
And the adhesion-inhibiting component 7 are uniformly dispersed in the adhesive layer 3
Is formed, and the action of the adhesion-inhibiting component 7 present on the surface causes peeling between the decorative sheet 2 and the adhesive layer 3.

The bonding processing conditions are appropriately set according to the bonding area and shape, mechanical ability, processing speed, finishability, etc., but the heating temperature is 80 to 250 ° C. and the heating time is 0.1 to
Processing conditions of 10 seconds and a pressing force of 0.5 to 8 kg / cm ² are preferable. Hereinafter, the present invention will be described more specifically with reference to Examples, but the present invention is not limited thereto.

[0021]

【Example】

Example 1 As an adhesive, an ethylene vinyl acetate-based adhesive (Ricabond AR-R752, milky white emulsion, resin content 51)
%, Cationic system, pH = 5 ± 1, manufactured by Chuo Rika Kogyo Co., Ltd., and a silicone resin (silicone TSM-630, milky white emulsion, resin content 30%, manufactured by Toshiba Silicone Co., Ltd.) as an adhesion-inhibiting component. Each of these components was used and diluted with water so that the solid content concentration shown in No. 1 to No. 7 of Table 1 below was obtained to obtain 7 kinds of dispersion liquids. Then, each of these dispersions was applied onto the surface of the corrugated board at a coating amount of 50 g / m ² , and dried at room temperature for 48 hours to evaporate the water content. Then, on the adhesive layer thus formed, a cotton cloth is laminated as a decorative sheet and pressure-bonded under the sealing conditions shown in Table 1, and the cross-sectional structure shown in FIG. 1 and shown in FIG. An insole decorative frame for a packaging box having an external appearance shown in FIG.

Then, with respect to each of the obtained 7 types of insole decorative frames, each seal portion was cut into a width of 20 mm, and the adhesive strength was measured using a tensile tester under the conditions of a pulling speed of 150 mm / min. And a peeling angle of 180 °. It measured (the number of measurement samples n = 3). Also, as an evaluation of the adhesiveness, the obtained insole decorative frame was subjected to boxing work, and the contact sheet was subjected to a contact shear stress test when it was placed in the bottom packaging box. It was observed whether it came off. Further, as a method of evaluating the peeling property, the material destruction state of the corrugated board at the time of measuring the peeling strength was observed. The results are shown in Table 1 below.

[0023]

[Table 1]

As shown in Table 1 above, Experiment No. 4
In the case of the (packing box insole decorative frame of the present invention), good adhesiveness and peelability were obtained under any sealing condition.
In the cases of o.1 and 2, the adhesive strength was weak, and in the cases of Nos. 5 to 7, the adhesive strength was too large and material destruction occurred. In No. 3, good results were obtained only under the sealing condition of 180 ° C for 1.0 second.

Example 2 As an adhesive, an ethylene vinyl acetate-based adhesive (Polysol OLY-3081, milky white emulsion, resin component 46)
%, Nonionic, pH = 4 to 5, manufactured by Showa Highpolymer Co., Ltd., and a silicone resin (silicone TSM-630, milky white emulsion, manufactured by Toshiba Silicone Co., Ltd.) as an adhesion-inhibiting component. Each of the components was diluted with water so as to have a solid content concentration described in No. 8 to No. 14 of Table 2 below to obtain 7 kinds of dispersion liquids. Then, using these dispersions, an insole decorative frame for a packaging box was produced by the same method as described in Example 1. Then, with respect to the obtained 7 types of insole decorative frames, the adhesive strength was measured in the same manner as in Example 1, and the peeled state was also evaluated. The results are shown in Table 2 below.

[0026]

[Table 2]

As shown in Table 2 above, Experiment No. 11
In the case of the (packing box insole decorative frame of the present invention), good adhesiveness and peelability were obtained under any sealing condition.
In the case of o.8 and 9, the adhesive strength was weak, and in the case of Nos. 10 and 12 to 14, the adhesive strength was too large and the material was broken.

[0028]

In the insole decorative frame for a packaging box of the present invention, an adhesive layer having both adhesiveness and releasability is formed between the insole frame base material and the decorative sheet, The decorative sheet can be peeled off with a relatively small force, and since the adhesive layer does not remain on the decorative sheet side, the peeled decorative sheet can be reused and reused. Therefore, it greatly contributes to the reuse of earth resources, which has been a problem from the past. or,
Since the insole frame base material after peeling off the decorative sheet can be reused as 100% recycled paper, it also contributes to the reduction of dust.

Further, as the decorative sheet constituting the insole decorative frame of the present invention, various materials used at home can be used. For example, table cloth, furoshiki, towel, scarf, handkerchief, cloth, paper towel. When various packaging decoration materials are used, a wider range of ways for reuse can be developed. In addition, the packaging box insole decorative frame of the present invention is subjected to secondary processing such as tie cutting, apron, and covers by adding secondary processing such as sewing and cutting to the decorative sheet, and is reused for reuse. Can also be deployed.

[Brief description of drawings]

FIG. 1 is a diagram showing a cross-sectional structure of a packaging box insole decorative frame of the present invention.

FIG. 2 is a view showing a usage state of the decorative insole frame for a packaging box of the present invention.

3 (a) to 3 (d) are views showing the formation of the adhesive layer 3 and the adhesive mechanism in the packaging box insole decorative frame of the present invention.

[Explanation of symbols]

 1 Insole Frame Base Material 2 Decorative Sheet 3 Adhesive Layer 4 Contents 5 Bottom Packaging Box 6 Adhesive 7 Adhesion Inhibiting Component 8 Solvent Molecule

Claims (3)

[Claims] 1. An insole frame base material 1 is arranged so as to cover the surface of the insole frame base material 1, and the insole frame base material 1 and the decorative sheet 2 are separated via an adhesive layer 3. An insole decorative frame for a packaging box, which is bonded in a possible state, and the adhesive layer 3 is composed of an adhesive and an adhesion-inhibiting component. 2. The adhesive according to claim 1, wherein the adhesive is a heat-sensitive adhesive, and the adhesion-inhibiting component is selected from the group consisting of fluororesin, silicone and wax. Insole makeup frame for packaging boxes. 3. The insole decorative frame for a packaging box according to claim 1, wherein the adhesive strength between the insole frame base material 1 and the decorative sheet 2 is 40 to 200 g / 20 mm width.