JP2006219150A - Packaging material having cushioning material, and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging material having a cushioning material in which a paper-like material and the cushioning material made of a synthetic resin can easily be separated after use, and the offering of both of the paper-like material and the synthetic resin material for the reuse is facilitated, and to provide its manufacturing method. <P>SOLUTION: This packaging material having the cushioning material is equipped with the cushioning material 2 which integrally has a large number of protruding sections 4 and 4 internally containing a gas and having a shape which swells to one surface side, and the paper-like material 1 for packaging which is overlapped on a surface on the opposite side from the protruding sections 4 and 4 for cushioning of the cushioning material 2. Then, a synthetic resin laminate layer 3 is placed between the cushioning material 2 and the paper-like material 1 for packaging, and the paper-like material 1 for packaging and the laminate layer 3 are falsely bonded into an easily separable state. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a packaging material with a cushioning material used when packaging a paper-like material that develops color under pressure, such as non-carbon copying paper, and a method for producing the same.

  Conventionally, a paper-like material that develops color by pressurization, such as non-carbon copying paper, is shipped from a manufacturer and transported while being wound in a roll. When an external force is applied locally during transportation and storage, the portion develops color and becomes a defective product. Therefore, a packaging material with a cushioning material is used to prevent this.

  As this packaging material with a cushioning material, a sheet of paper made of kraft paper is overlapped with a polyethylene cushioning material made of foamed synthetic resin on one side, and both are bonded to each other with a polyethylene laminate layer.

  In this type of packaging material with a buffer material, a buffer material layer is formed by the buffer material, water impermeability is ensured by the laminate layer, and moisture is absorbed by the paper-like material.

  This type of conventional packaging material with cushioning material has a low cushioning effect against granular pebbles, etc., and the cushioning material made of foamed synthetic resin has a certain thickness to secure the cushioning effect, and the cushioning material The packaging material is difficult to bend due to the elasticity of the material, and when covering the packaging material according to the shape of the packaged material wound in a roll shape, the work is troublesome, and there is a floating between the packaged material and the packaging material. There was a problem.

  In addition, the conventional packaging material with a cushioning material is made of a synthetic resin material and a paper-like material that cannot be easily separated, making it difficult to reuse the paper-like material and the synthetic resin material. Had to be disposed of as waste. For this reason, there was a problem that disposal required great costs and there was a limit to the final disposal site space.

  In view of such conventional problems, the present invention provides a high buffering effect on granular pebbles and the like, and can easily separate a paper-like material and a synthetic resin-made buffer material after use. The purpose of the present invention is to provide a packaging material with a cushioning material that can be easily reused for both synthetic resin materials and a method for producing the same.

  The feature of the invention described in claim 1 for solving the conventional problems as described above and achieving the intended purpose is that a plurality of bumps for cushioning, which contain gas and are raised on one side, are integrated. A cushioning material and a wrapping paper-like material superimposed on a surface of the cushioning material opposite to the cushioning convex portion, and a synthetic resin laminate layer is provided between the cushioning material and the wrapping paper-like material. It is characterized by being a packaging material with a cushioning material in which the wrapping paper-like material and the laminate layer are pseudo-bonded so as to be easily separated.

  The invention according to claim 2 is characterized in that, in addition to the structure of claim 1, the strength capable of easily separating the paper-like material and the laminate layer is 10 g / 50 mm or less.

The invention according to claim 3 includes a wrapping paper-like material, an air cap sheet material that includes a gas and has a plurality of cushioning protrusions integrally formed on one side, and the wrapping paper-like material. The air cap sheet material is fed between a receiving roll and a pressure roll adjacent to each other in a state where the air cap sheet material is superposed on the surface opposite to the buffering convex portion, and the wrapping paper-like material and the air cap sheet material In the meantime, a molten synthetic resin of the same material as the air cap sheet material is supplied in layers from a T die at a resin temperature of 200 to 330 ° C., and the laminated air cap sheet material, molten synthetic resin and packaging paper material are The wrapping paper-like material and the air cap sheet are passed through a laminate layer having a thickness of 5 to 35 μm by passing between the receiving roll and the pressure roll while being pressed with a pressing force of 0.5 to 5.0 kg / m ^2. With material Characterized in that it is a manufacturing method of the cushioning material with the packaging material to a pseudo-adhesive.

  As described above, in the packaging material with a cushioning material according to the present invention, a high cushioning effect is obtained with respect to granular pebbles and the like, and a packaged object such as non-carbon copying paper while ensuring a sufficient cushioning effect. It is possible to prevent floating and the like from being generated between the wrapping material and the packaging material, and to wrap the article to be packaged suitably with the cushioning material protected. At that time, the cushioning material and the paper-like material are bonded together. Can be handled together. In addition, when processing after use, the synthetic resin portion and the paper-like material portion can be easily separated by hand, and both can be separately subjected to processing such as disposal or reuse. Can be reused and industrial waste can be reduced.

Moreover, in the manufacturing method of the packaging material with a buffering material which concerns on this invention, the fusion | melting synthetic resin temperature used as a laminate layer is 200-330 degreeC compared with 330-350 degreeC in the case of a normal lamination process. is set low, because when pressure applied by the pressure roll also conventional lamination is set as low as 0.5 to 5 kg / m ² whereas at 5 kg / m ² or more, and the laminate layer Pseudo-adhesion in a state where separation from the paper-like material is easy is possible.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a plan view of a packaging material with a cushioning material according to the present invention, and FIG. 2 shows a partially enlarged cross section thereof.

  In this packaging material with a buffer material, a wrapping paper-like material 1 made of kraft paper and a cushioning material 2 made of an air cap sheet material are overlapped via a laminate layer 3 made of polyethylene, and the laminate layer 3 and the cushioning material 2 Are integrated so as not to be peeled from each other, and the paper-like material 1 and the laminate layer 3 are pseudo-bonded so as to be easily peelable.

  The cushioning material 2 includes a large number of cushioning convex portions 4, 4... That contain a gas such as air and are raised on one side.

  The cushioning material 2 is formed by superimposing a polyethylene convex sheet 5 having a large number of convex portions projecting on one side and having the other side opened on a flat polyethylene sheet 6 in a gas atmosphere such as air. By heat-sealing the opening edge and sealing the inside of the convex portion with both sheets 5 and 6, it is formed into a sheet shape having buffer convex portions 4, 4.

  The laminate layer 3 is formed with a polyethylene resin such as LDPE (low density polyethylene) to a thickness of 5 to 35 μm, and formed so that the peel strength between the laminate layer 3 and the paper-like material 1 is 10 g / 50 mm or less. Has been.

  The manufacture of the packaging material with a cushioning material configured as described above uses an apparatus as shown in FIG. In the figure, 10 is a paper-like material feeding roll in which the paper-like material 1 is wound and supported, 11 is a cushioning material 2 made of an air cap sheet material, and roll-shaped so that the cushioning convex portion side is inside. A roll-up supported cushioning material feed roll, 12 is a receiving roll that also serves as a cooling, 13 is a pressure roll adjacent to the receiving roll 12, and 14 is a T-die that supplies molten synthetic resin in a belt shape on the surface of the receiving roll, Reference numeral 15 denotes a molten synthetic resin supply device.

  In this apparatus, the shock absorbing material 2 is pulled out from the shock absorbing material supply roll 11, is caused to follow from the upper side to the lower side of the receiving roll 12 by the guide rolls 16, 17, and is wound on the winding roll 18. The paper-like material 1 is pulled out from the paper-like material feeding roll 10 and attached to the outer periphery of the pressure roll 13, and is opposite to the cushioning convex portion of the shock-absorbing material 2 attached to the surface of the receiving roll 12 by the pressure roll 13. It is superposed on the side surface, and is wound on the winding roll 18 together with the cushioning material 2.

  From the T die 14, a predetermined amount of the molten synthetic resin 3 a is continuously extruded in a sheet shape on the upper surface of the buffer material 2 attached to the upper surface side of the receiving roll 12, that is, on the surface opposite to the buffer convex portion, This is referred to as a laminate layer 3.

  The melt synthetic resin used as the laminate layer 3 uses a polyethylene material having the same quality as that of the buffer material 2 and supplies it to the buffer material surface at a melting temperature of 200 to 330 ° C.

In addition, the pressure roll 13 is one that sandwiches the molten synthetic resin 3a between the buffer material 2 and the paper-like material 1 and presses it between the roll 12 and pressurizes it. Is set to a size of about 0.5 to 5.0 kg / m ² , preferably about 1.0 to 1.5 kg / m ² . Further, the thickness of the laminate layer 3 is adjusted to 5 to 35 μm by the pressure applied by the pressure roll 13, the sheet feeding speed, and the molten synthetic resin feed amount.

  Since the molten synthetic resin 3a supplied to the surface of the buffer material 2 is 200 to 330 ° C., the buffer material 2 of the same quality is melted and integrated with each other.

  However, since the melting temperature is low, the viscosity is high, the paper material 1 has low penetration into the structure, and the pressure applied by the pressure roll 13 is small. Thus, the paper-like material 1 is pseudo-adhered in a state where it does not sufficiently penetrate into the tissue and easily peels off.

  The packaging material with a cushioning material produced in this way has a gap formed between the cushioning convex portions 4 and 4 of the cushioning material 2 when packaging a packaging material such as a pressure-developing non-carbon copying paper. It can be easily wrapped without being lifted between the packaged material and the packaging material, and can be adequately packaged on the other hand. A good buffering effect can be obtained. Moreover, a high buffering effect is exhibited against granular pebbles and the like.

  Furthermore, this packaging material with a cushioning material can be integrally handled in a state where the paper-like material 1 and the cushioning material 2 are adhered by the laminate layer 3 at the time of packaging. The synthetic resin material portion composed of the laminate layer 3 and the buffer material 2 and the paper-like material portion can be easily separated manually, and both can be separately subjected to processing such as disposal or reuse.

  In the above-described embodiment, an example in which kraft paper is used as a wrapping paper-like material has been described. In addition, crepe paper, non-woven fabric, OPP film, PET film, LLD film, VMPET film, aluminum stay, etc. are used. Also good.

  For the buffer material 2 and the laminate layer 3 made of an air cap sheet material, a thermoplastic material such as polypropylene can be used in addition to polyethylene.

It is a top view which shows the packaging material with a buffer material which concerns on this invention. It is an expanded sectional view of a packaging material with a buffer material same as the above. It is the schematic which shows the manufacturing method of the packaging material with a buffer material which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper-like material 2 Buffer material 3 Laminating layer 3a Molten synthetic resin 4 Buffer convex part 5 Polyethylene convex sheet 6 Polyethylene sheet 10 Paper-like material delivery roll 11 Buffer material delivery roll 12 Receiving roll 13 Pressure roll 14 T die 15 Melt synthesis Resin supply device 16, 17 Guide roll 18 Winding roll

Claims (3)

  A cushioning material that includes a gas and integrally includes a number of cushioning convex portions that are raised on one side, and a wrapping paper-like material that is superimposed on a surface of the cushioning material opposite to the cushioning convex portions; Comprising a synthetic resin laminate layer interposed between the cushioning material and the wrapping paper-like material, and quasi-adhering the wrapping paper-like material and the laminate layer so as to be easily separable Packing material with materials.   The packaging material with a cushioning material according to claim 1, wherein the strength capable of easily separating the paper-like material and the laminate layer is 10 g / 50 mm or less. A wrapping paper-like material, and an air cap sheet material that integrally includes a plurality of cushioning convex portions that enclose gas and are raised on one side, and the wrapping paper-like material is the cushioning convexity of the air cap sheet material. The air cap sheet material is fed between a receiving roll and a pressure roll that are close to each other in a state of being superimposed on the surface opposite to the portion, and between the packaging paper material and the air cap sheet material. A molten synthetic resin of the same material as that of the same is supplied in a layer form from a T die at a resin temperature of 200 to 330 ° C., and the laminated air cap sheet material, molten synthetic resin and wrapping paper material are placed between the receiving roll and the pressure roll solving by passing under pressure by pressing force 0.5~5.0kg / m ^2, thereby pseudo-bonding the said wrapping sheet-like material and the air cap sheet material through the laminate layer of thickness 5~35μ the Method of manufacturing the cushioning material with a packaging material made as.

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