JP5249732B2 - Bag with a part of the labeling area - Google Patents

Description

  Although the present invention relates to a bag body partially provided with a labeling region, the present invention is not particularly limited. In particular, it is used for storing food and the like and precooling in a refrigerating chamber, and storing a proper refrigerant after precooling for use in transportation and storage. The present invention relates to a preferable bag body partially provided with a labeling region.

  For storage and physical distribution, a label that describes information about the type of goods stored, a destination, and the like is attached to a transport container such as a bag. Patent Document 1 describes a transport container in which a region for such a label is set at an easily visible outside. In such a bag body (conveying container), the same bag body is used in a returnable manner many times by changing the label describing the type of the stored article, the transport destination, and the like each time it is used.

  On the other hand, when the goods to be stored are fresh foods such as vegetables, frozen foods or refrigerated foods, they are stored and transported at a low temperature in a predetermined temperature environment before reaching the consumer. Patent Document 2 or Patent Document 3 describes a heat insulating bag body with a grip portion using a foldable heat insulating sheet used for that purpose. Furthermore, since it is lightweight and has a good heat insulating property, for example, a cold container made of a synthetic resin foam such as a polystyrene resin foam is often used. In order to facilitate the handling of the cold container, Patent Document 4 As described in (1), the cold insulation container is also covered with a cover body (bag body) having a gripping portion.

Registered Utility Model No. 3132755 Registered Utility Model No. 3009717 Japanese Patent Laid-Open No. 10-287372 JP 2007-91271 A

  In the case of a bag body that is used in a returnable manner as described above, it is necessary to replace the label that describes information about the contained articles or the like every time it is used. The affixed label needs to be affixed with an adhesive strength that does not easily peel off under normal use conditions. Therefore, a material capable of obtaining a strong adhesive force in relation to the adhesive applied to the label side is selected as at least the outer surface material of the bag body. However, in the usual case, such a material is expensive, and it is expensive to cover the entire outer surface of the bag body with such a material amount.

  On the other hand, in such a bag body, when the label is replaced, it is desirable that the label side adhesive is removed cleanly without remaining on the bag side. If a part of the pressure-sensitive adhesive remains on the bag body side, the label is hard to be peeled off by re-labeling a large number of times, resulting in inconvenience as a bag body for returnable use. In particular, as described in Patent Documents 2 to 4, in a bag body that is stored at a low temperature under a predetermined temperature environment and is then subjected to transportation or the like, the temperature change of the bag body is large and condensation tends to occur on the outer surface. Therefore, the attached label is easily peeled off. In order to prevent this, at least the outer surface layer is made of a material that produces a stronger adhesive force than a normal bag body that is used only at room temperature, but it remains on the bag body side in proportion to the strength of the adhesive force. The amount of the pressure-sensitive adhesive increases, and it becomes difficult to peel off the label when the label is reapplied many times.

  The present invention has been made in view of the circumstances as described above, and is a bag in which a label on which information on stored articles and the like is written can be attached with an adhesive strength that does not easily peel off under normal use conditions. It is a first object to provide a bag that is a body and can be manufactured at low cost. Further, the present invention does not cause difficulty in peeling off the label even if the bag is placed alternately in a cryogenic environment and a room temperature environment, even if the label is reapplied many times. Providing such a bag is a second problem.

  A bag body according to the present invention is a bag body partially provided with a labeling region, and the labeling region is made of a material whose adhesion to a label is stronger than a material constituting the outer surface layer of the bag body. It is characterized by being.

  In the above bag body, a material having high adhesive strength to a label, which is usually expensive, is used only in the labeling region in the bag body, and at least the entire outer surface is made of a material having strong adhesive force to the label. And a bag can be made at low cost.

  In the above bag body, the material of the entire bag body is appropriately selected according to the purpose of use of the bag body. Moreover, the material which forms higher adhesive force is selected for the material which forms a label sticking area | region in relation with the adhesive apply | coated to the label side. As an example, at least the outer surface layer of the bag is made of a polyamide-based resin sheet, and the labeling region can be a bag made of a composite sheet of an aluminum-containing polyethylene film and polyethylene cloth.

  In the above bag body, the polyamide resin sheet is usually cheaper than the composite sheet, and the manufacturing cost can be reduced. Moreover, the adhesive force with respect to the adhesive apply | coated to the label side is small in a polyamide-type resin sheet, and the said composite sheet is large compared with it. Furthermore, as shown in the following examples, the composite sheet is not prepared even if the bag body is used in an environment where condensation occurs on the outer surface, and the adhesive strength with the label does not decrease. It is possible to prevent the label from being peeled off. Further, when the label is peeled off, the adhesive is hardly left on the composite sheet side.

  In the bag according to the present invention, when a label is affixed to a region where strong adhesive force is generated, the adhesive force of the label is sufficiently large, but when trying to peel it off, the adhesive force is too strong, A large amount of the adhesive applied to the label may remain on the label application region side, or the label may be torn. In order to avoid this, in another aspect of the bag according to the present invention, the labeling region has a part that is not covered with a material having a strong adhesive force to the label. In the bag body according to this aspect, the labeling region is composed of a portion covered with a material having a strong adhesive force to the label and a portion not covered, so the covered portion and the uncovered portion By appropriately selecting the area ratio, it is possible to reliably form a labeling region that satisfies both the required adhesive force and the required ease of peeling at the same time.

  The present invention can be used in many applications. Typically, it is a bag used for cold storage and distribution of food or the like that requires cold storage, and further a bag used as a cover of a cold storage container made of a synthetic resin foam.

  ADVANTAGE OF THE INVENTION According to this invention, the bag body which can replace the label which described the information regarding stored articles etc. freely can be obtained at low cost. Moreover, even if the bag is a bag that is alternately placed in a cryogenic environment and a room temperature environment, even if the label is reapplied many times, it is not difficult to remove the label. Thus, a bag body can be obtained.

  Hereinafter, the present invention will be described based on embodiments with reference to the drawings. FIG. 1 shows one embodiment of a bag according to the present invention, and the bag is used as a cover for a cold insulation container made of a synthetic resin foam. FIG. 2 shows a plurality of forms of the label attaching region in the bag according to the present invention and the state of the label attached thereto.

  In the example of FIG. 1, reference numeral 100 denotes a cold storage container with a cover body, which is a box-shaped container body 10 that is a molded product of a synthetic resin foam such as expanded polystyrene, and a first cover that covers the outside of the container body. The body 20, the lid body 30 which is also a molded product of a synthetic resin foam, and the second cover body 40 covering the outside of the lid body, and by placing the lid body 30 on the container body 10, The inside is substantially cut off from the outside air. Here, the first cover body 20 is a member corresponding to the “bag body” of the present invention.

  The first cover body 20 is made of a polyamide-based resin woven fabric (for example, product name: nylon 420D dyed hyperon coat: manufactured by Asahi Chemical Industry Co., Ltd.), and a labeling region 50 is formed on one side surface thereof. Has been. In this example, the labeling region 50 is a first cover body with one sheet of a composite sheet obtained by laminating an aluminum-containing polyethylene film on one or both sides of a rectangular polyethylene cloth, with the aluminum-containing polyethylene film surface facing outside. It is formed by sewing on 20 side surfaces.

  In the label attaching region 50, a label 60 in which information on the types of articles accommodated in the cold insulator 100 with the cover body and the delivery destination thereof is written in the form of a barcode, for example, is attached. An emulsion-based adhesive is applied to the back surface of the label 60, and the adhesive strength of the adhesive is small with respect to the polyamide-based resin constituting the first cover body 20, thereby forming the label attaching region 50. The composite sheet of the aluminum-containing polyethylene film and polyethylene cloth is about several times larger than the composite sheet. However, it can be easily peeled off if necessary.

  The second cover body 40 has a shape that can cover the lid body 30. In the illustrated example, the band-shaped fastening band 42 is detachable using a hook 41 attached to the back surface thereof. A hook-and-loop fastener 43 is attached to both ends of the fastening band 42. The lid body 30 and the second cover body 40 are integrated by placing the lid body 30 on the back surface of the second cover body 40 and attaching the two fastening bands 42 through the hooks 41. Although not shown in the drawings, a hook-and-loop fastener is also attached to the first cover body 20, and the lid 30 can be attached to and detached from the container body 10 by using the hook-and-loop fastener and the hook-and-loop fastener 43 attached to the fastening band 42. It is attached.

  As one use mode of the above-described cold-insulated container 100 with a cover body, the container body 10 that contains articles such as food and is attached with the first cover body 20 is placed in a refrigerated warehouse in a cold air environment without a lid. The articles stored in the cold air in the warehouse are pre-cooled to the required temperature. After the pre-cooling, the refrigerant is put in, the cover 30 is covered and the inside is sealed, and then conveyed to a predetermined place where food or the like is distributed while referring to the information on the label 60 attached.

  After the distribution, the cover-equipped cold storage container 100 is returned to its original location, and the storage of food and the like, pre-cooling, and delivery transportation are repeated again. Each time, the old label is peeled off, and a new label in which new information is written is pasted on the label pasting region 50 formed on the first cover body 20. This mode of use is repeated many times.

  In the above usage mode, the outer surface of the first cover body 20 is exposed to both a cold air environment in the refrigerated warehouse and a room temperature environment during delivery. Therefore, condensation is likely to occur on the outer surface of the first cover body 20, and the condensation also occurs in the label attaching region 50. When dew condensation occurs, the adhesive strength decreases and the label 60 is easily peeled off. However, in the experiments of the present inventors, as shown in a later example, the labeling region 50 is formed of the above-described aluminum-containing polyethylene film and polyethylene cloth. By using the composite sheet, a high adhesive force was obtained at the beginning of the adhesion, and even when condensation occurred, the adhesive force was hardly lowered, and the label could be prevented from being carelessly peeled off.

  FIG. 2 shows a plurality of other forms of the label attaching region in the bag according to the present invention and the state of the label attached thereto. As described above, when the label 60 is affixed to the region 50 where the strong adhesive force is generated, the label 60 is affixed with a strong adhesive force, but when trying to peel it off, the adhesive force is too strong and the label 60 A large amount of the adhesive applied to 60 may remain on the label attaching region 50 side, or the label 60 may be torn. The form of the labeling area shown in FIG. 2 is for avoiding this.

  That is, in FIG. 2 (a1), the labeling region 50 is covered with a material having a strong adhesive force to two labels separated from each other, in this example, the above-described composite sheets 50a and 50b of an aluminum-containing polyethylene film and polyethylene cloth. In between, it has the part 51 which is not covered with the material with the strong adhesive force with respect to a label. In the portion 51, a woven fabric of polyamide resin that constitutes the first cover body 20 is exposed.

  In the form of FIG. 2 (a1), it is necessary to sew the two separated composite sheets 50a and 50b, and sewing is somewhat difficult. In order to solve this, in FIG. 2 (a2), the said part 51 is formed in the center part of the one said composite sheet 50 at the notch shape from the lower end, In FIG. The part 51 is formed in an opening shape at the center of the composite sheet 50.

  In FIG. 2 (b1), the portion 51 is formed in three places, and therefore, the four composite sheets 50a to 50d are sewn. In order to facilitate the sewing work, in FIG. 2 (b2), the three parts 51 are formed in a cutout shape from the lower end of one composite sheet 50. In FIG. 2 (b3), 1 The three portions 51 are formed in the inside of the sheet 50 in an opening shape.

  In any of the forms shown in FIG. 2, the label 60 is adhered with a material having a strong adhesive force to the label and a desired area, and the label 60 is not inadvertently peeled off. Further, by forming the portion 51, it is possible to avoid the state where the label 60 is stuck with an unnecessarily strong adhesive force, and the ease of peeling can be satisfied at the same time. Further, in the region where the label 60 is attached to the region where strong adhesive force is generated, the adhesive applied to the label 60 may remain on the label attaching region side when the label 60 is peeled off. Since the adhesive area of the label 60 can be reduced by the area where the woven fabric of the polyamide-based resin constituting the first cover body 20 is exposed, the ratio of the adhesive applied to the label to the area of the label remains Is smaller than when the entire label is stuck. As a result, it is possible to avoid the label from becoming difficult to peel off even if the label is reapplied many times.

  Next, examples performed by the present inventors will be described.

  As the label, a label (product name: LD3331: manufactured by Lintec Corporation) having an emulsion-based adhesive applied to the back surface was used. A composite sheet of aluminum-containing polyethylene film and polyethylene cloth (product name: polyethylene 14 × 14 UVUV silver: Morishita Chemical Co., Ltd.) (hereinafter, material 1) and aluminum-containing polyethylene film are laminated on the substrate to which the label is attached. Polyethylene cloth (hereinafter referred to as material 2), polyamide resin sheet (product name: nylon 420D dyed hyperon coat: manufactured by Asahi Chemical Industry Co., Ltd.) (hereinafter referred to as material 3), mesh-like polyester sheet (hereinafter referred to as material 4) Using. After applying the label to the substrate, the peel strength of the label immediately after application was measured. Moreover, after sticking a label on a base material, it was placed in an environment of −20 ° C. for 5 hours, and then the peel strength of the label after taking out into the atmospheric environment to cause condensation was measured. Furthermore, the peel strength of the label during condensation drying was measured. Moreover, the state of the label when peeled was visually observed. The results are shown in Table 1. The peel strength test was performed at an environmental temperature of 24 ° C., an environmental humidity of 60%, and a peeling speed of 50 mm / min.

[Discussion]
As shown in Table 1, the peel strength is weak in the material 3 and the material 4, and the label is easily peeled when used as the material of the bag body. The materials 1 and 2 show a very high peel strength compared to the materials 3 and 4 both after condensation and after condensation drying, indicating that they are preferable as a labeling region forming material in the bag. However, the material 2 is not preferable as compared with the material 1 because the label is broken at the time of peeling. The reason why the tear occurred is that the lattice-like surface of the polyethylene cloth has an acute angle, so it is considered that the tear occurred on the basis of the acute angle portion.

It is a figure which shows the one aspect | mode of the bag body by this invention, and the bag body is used as a cover of the cold storage container which consists of a synthetic resin foam. The figure which shows the several state of the label sticking area | region in the bag body in this invention, and the state of the label affixed there.

Explanation of symbols

100: Cold storage container with cover body,
10: Box-shaped container body which is a molded product of synthetic resin foam,
20 ... 1st cover body (bag body by this invention) which coat | covers the outer side of a container main body
30 ... a lid that is a molded product of a synthetic resin foam,
40 ... second cover body,
50 ... Labeling area,
60 ... label.

Claims (4)

Part Ri bag der provided with a labeling region, the labeling region, adhesion to the label, there in a bag body made of stronger material than the material constituting the outer surface layer of the bag body The outer surface layer of the bag is made of a polyamide-based resin sheet, and the labeling region is made of a composite sheet of an aluminum-containing polyethylene film and polyethylene cloth . It is a bag body of Claim 1 , Comprising: The said label sticking area | region has a part which is not covered with the material whose adhesive force with respect to the said label is stronger than the material which comprises the outer surface layer of a bag body. A bag characterized by. It is a bag body of Claim 1 or 2 , Comprising: The said bag body is a bag body used for cold storage and physical distribution of food etc. which require cold storage. It is a bag body of Claim 3 , Comprising: The said bag body is a bag body used as the cover of the cold storage container consisting of a synthetic resin foam, The bag body characterized by the above-mentioned.

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