JP3152646B2 - Packing paper band - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper band for packing.

[0002]

2. Description of the Related Art A conventional paper band used as a packing material is composed of a twisted paper strand (several 5 to 16 strands) juxtaposed with an adhesive, and a part of the surface is formed on the surface. Polyvinyl alcohol aqueous solution of saponification (commonly known as
It is called water glue and is mainly used on the back of stamps. ) Is used, and by attaching water or a liquid containing water to the glue surface, the both ends of the band and the like are brought together to provide an adhesive effect.

[0003] A paper band in which the twisted strings are juxtaposed is required to have a vertical strength (tensile strength). Therefore, it is necessary to use paper (basis weight 40 g ± 5 g / m 2) in which fibers are arranged in a longitudinal direction by a round net type machine (mainly for Japanese paper).

[0004] There are few paper makers that can make such papers, and they cannot meet the large demand.

[0005] In addition, the processing of twisted cords of paper requires a lot of manual work, not only requires skill, but also causes irregularities and impairs the product value, and is susceptible to changes in the environment. Because it will change greatly, sufficient management is required.

[0006] Also, there are few companies that process twisted strings, and there are almost no manufacturers of twisting machines, so that stable supply of paper bands for twisted stringing cannot be expected in the future. In addition, it affects the price and increases the cost.

As described above, the surface of the conventional paper band has an irregular shape in order to paste a plurality of twisted cords of paper, and the adhesive to be used needs to be sufficiently managed. Become. Depending on the concentration or temperature of the adhesive, the twisted strings are not sufficiently adhered to each other (peeled off),
Conversely, too much adhesive is applied (especially, there is a possibility that much adhesive is applied to the recesses), and the paper band itself becomes too soft, or adhesive residue adheres to the paper band. It causes many problems. These are directly
And must be eliminated as defective.

[0008] Further, the twisted string may be broken during processing depending on the quality of the twisted string or the quality of the paper. In these cases, the stop switch is turned on, but the processing machine runs for several tens of meters, which results in a shortage of the number of twisted strings, resulting in a loss band.

[0009] In view of the above, a major problem in the production of a paper band using a twisted string is a battle with yield, which leads to an immediate cost.

[0010]

Therefore, according to the present invention, paper having a width calculated from a finishing width sequentially fed out is used.
Folding, bonding, and wrapping the core together while making the entire mating surface make a paper band for packing, not only is it suitable for mass production, it has good yield, and there is also adhesive strength, Another object of the present invention is to provide a paper band for packaging that can be subjected to an additional process such as printing.

[0011] A sheet of paper having a width calculated from the finished width is singly folded, folded, and its mating surface is bonded to the entire surface, or a plurality of sheets are bonded to the entire surface, or the center is entirely bonded to the center of the paper. , Forming a band, bending the band from both sides to the center, and bonding the entirety of the mating surfaces so that both side faces are opposed to each other at the center of the band. Further, an adhesive for heat sealing or a heat-sensitive emulsion capable of heat sealing is applied to the surface of the packing paper band, and dried to form a packing paper band.

The present invention will be described in more detail with reference to the embodiment of FIG.
The paper 1 having a width calculated from the finished width is sequentially fed out in a roll shape, and an adhesive is applied to the entire surface of the mating surface 1 ′ by the applicator 2, and the width direction is equalized by the folding device 3. The band 5 is folded by a laminating device 4 to form a band 5, and the band 5 is bent from both side ends in the direction of the central portion 6 to apply an adhesive to the whole of the mating surface 5 '. 5 "are attached to each other at the central portion 6 of the wrapping paper 5 by the folding and bonding device 4, and the wrapping paper band 7
And a coating machine 8 on the surface of the packing paper band 7.
Is applied with a heat seal adhesive 9 or a heat-sensitive emulsion capable of forming a heat seal and dried. The side end surfaces 5 "and 5" may overlap with each other due to mechanical accuracy, paper quality, etc., but it is basically preferable to bond them so as to face each other. The heat-sealing adhesive 9 is preferably applied after the packing paper band 7 is dried, but may be applied before the drying.

FIG. 2 shows an example in which an adhesive is applied by a coating machine 2 to the mating surfaces 1'1 'of upper and lower papers 1 and 1 of the same width, and the entire surface is bonded to form a band paper 5. Is folded from both side ends to the central portion 6 and an adhesive is applied to the entire surface of the mating surface 5 ′. The adhesive is then applied to the surface of the packing paper band 7 as before, and then dried. Others are the same as above. The number of the papers 1 may be three or more, and different papers can be attached to each other according to the application. In the figure, reference numeral 2 denotes a coating machine, 3 denotes a folding device, 4 denotes a bonding device, and 8 denotes a heat sealing adhesive 9 coating machine.

In FIG. 3, an adhesive is applied to the entire surface of the mating surface 1 ′ of the paper 1, and the central core 1 (the upper paper 1 will be described as the central core) is adhered to the entire surface at the center portion to form a band 5. The band 5 is bent from both sides of the band 5 to the center 6 so that the mating surface 5 ′ is adhered to the whole, and the side edges 5 ″ and 5 ″ are opposed to each other at the center 6 of the band 5, and the packing paper band 7 is formed. And further apply the adhesive 5 to the surface of the packing paper band 7 as before.
It is dried and adhered so as to enclose the core (paper).
Others are the same as before.

Although not shown, the paper 1 having a relatively high tensile strength may form the band 5 as a single leaf, and is folded from both side ends of the band 5 to the center 6 to form a mating surface 5 '.
May be bonded to each other, and the packing paper band 7 may be made with the side end surfaces 5 ″ and 5 ″ facing each other at the central portion 6 of the band paper 5. In this case, the paper 1 may use multi-ply paper. Others are the same as before.

FIG. 4 shows a printing machine 12 after the drying device 11 for the packing paper band 7, and a winding device 13 for winding the completed packing paper band into a coil shape.

When printing on the surface, the dried product is applied to a printing machine 12 and returned to the drying device 11 to be dried. When printing is performed again, the printer 12 and the drying device 11 are repeatedly operated, and the dried product is taken up by the winding device 13.
To wind up. In the figure, reference numeral 14 denotes an embossing device.

FIG. 5 shows the types of embossing. The shape of the embossing is suitable for the purpose such as mechanical suitability of the packing machine, slip prevention, and the like.
Line (vertical, horizontal, meandering, etc.), mesh, grid,
Although any of polka-dot, square, and round patterns may be used, this processing may be performed before or after the application of the heat-sealing adhesive, and is preferably performed before the drying of the packing paper band. A post-process may be used depending on the type of paper used.

The adhesive 9 for heat seal is made of polyvinyl alcohol.
Glycerin or diglycerine as a plasticizer 0.5% to 10%, and lithium chloride 0.1% to 15% with respect to an adhesive solution containing 5% or more of alcohol (hereinafter referred to as PVA).
%, Lotus oil 0.05% to 5%, defoamer 0.01% to 5%
% Is preferably used.

[0020]

According to the present invention, as described above, a sheet of paper having a width calculated from the finished width is singly folded or folded, and the mating surfaces thereof are entirely adhered, or a plurality of sheets are entirely adhered, or the center of the paper. The entire area of the core is stuck to the center of the band, the band is bent from both ends to the center, and the mating surface is bonded to the entire surface so that both ends are opposed to each other at the center of the band. It can be mass-produced by an agent coating machine and a paper folding device, and can produce uniform products with good yields and consequently can be provided at low cost.

Further, since the both end surfaces of the band are opposed to each other at the center of the band, the adhesive applied to the mating surface is unlikely to overflow onto the surface.
Since it is wiped off by contact with the like, it becomes smooth and easy to dry, so that it does not adhere to other parts even after winding, so that a smooth binding operation can be performed.

In addition, in the second aspect, since the adhesive for heat sealing is applied to the smooth surface of the packaging paper band of the first aspect, there is a so-called "waist", and the plastic packaging band has It can be used with an automatic packing machine, and since the adhesive is applied uniformly, a water-resistant effect is obtained, the adhesive strength is increased, and it is found that the adhesive strength is almost the same as the base material strength.

After both of the first and second aspects are used for packing, these paper bands can be recycled, and can be said to be extremely effective packing materials in consideration of environmental problems.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a manufacturing process of a packing paper band of the present invention and an apparatus.

FIG. 2 is an explanatory view of a process for manufacturing a packing paper band and an apparatus according to another embodiment.

FIG. 3 is an explanatory view of a manufacturing process of a packing paper band and an apparatus according to another embodiment.

FIG. 4 is a process explanatory diagram of a packing paper band drying device, a printing machine, and a winding device according to the present invention.

FIG. 5 is a pattern diagram showing an example of embossing types.

[Explanation of symbols]

 1 is paper 1 'is mating surface 2 is coating machine 3 is folding device 4 is laminating device 5 is banding material 5' is mating surface 5 "is side end surface 6 is center portion 7 is packing paper band 8 is coating machine 9 adhesive.

Claims (2)

(57) [Claims] 1. A sheet of paper having a width calculated from the finished width is singly folded or folded, and the mating surface is bonded to the entire surface, or a plurality of sheets are bonded to the entire surface, or the core is entirely bonded to the center of the paper. A packing paper band in which a band is formed, bent from both sides of the band to the center, and this mating surface is entirely adhered so that both sides are opposed to each other at the center of the band. 2. A sheet of paper having a width calculated from the finished width is single-leafed, folded, and its mating surface is bonded to the entire surface, or a plurality of leaves are bonded to the entire surface, or the central core is entirely bonded to the center of the paper. Together, a band is formed, bent from both sides of the band to the center, and this mating surface is entirely adhered to the surface of the packing paper band having both ends facing the center of the band for heat sealing. A packing paper band that is coated with an agent or a heat-sensitive emulsion that can be heat-sealed and dried.