JP4527195B1 - Product packaging bag - Google Patents

Abstract

[PROBLEMS] To provide a long roll-printed film used for manufacturing a product packaging bag, particularly in the case of a product packaging bag of a wide variety of small-lot products, such as when there is little necessary printing information regarding stored products to be printed on the product packaging bag. The product packaging bag which can improve the printing efficiency and reduce the printing cost in the manufacturing cost of the product packaging bag is provided.
A header portion is formed by folding at a position corresponding to an upper edge L of one non-printing thermoplastic resin film A, and dividing a lower portion of a fold portion of the upper edge L by a horizontal heat seal D parallel to the upper edge L. In the formed product packaging bag, the printed film core H half-folded with the printing surface on the inner side of the header part B is the inner side of the fold line of the upper edge L of the header part of the non-printing thermoplastic resin film. The two side edges of the header portion of the non-printing thermoplastic resin film and the two side edges of the inner half-fold printing film core H are integrated on the header side edge F at the same time. To fix by welding.
[Selection] Figure 2

Description

  The present invention relates to a product packaging bag made of plastic film for small items. More specifically, the present invention relates to a product packaging bag suitable for packaging products of various types and small lots.

Conventionally, the sale of relatively inexpensive small items has been carried in a plastic product packaging bag with a header and transported for display at retail stores.
Usually, in a plastic product packaging bag with a header, information on stored products such as the name, quality, and usage of the product is printed on both the bag film and the header portion.
The header portion is not printed on the core material of the header portion, but is printed on the outer film of the header portion which is continuous from the film of the bag portion. The reason is that when a product packaging bag is manufactured in a continuous manufacturing process, if printing is performed on both the core material of the header of the raw material and the bag body film, the printing pattern of the header portion and the printing of the bag body portion are shifted. This is because it is difficult to prevent such a situation.
In general, plastic product packaging bags are manufactured in a continuous manufacturing process and can be manufactured at low cost.
In the continuous manufacturing process of the product packaging bag with a header, a belt-like film having a width approximately twice the height of the long product packaging bag is continuously printed, and the printed belt-like printing film is temporarily rolled. Prepare in a roll. In merchandise packaging bags, printing of stored merchandise information is an indispensable requirement, and printing of the bag body part surface and the header part surface is all performed on a belt-like film of raw materials for the reasons described above.
In the continuous manufacturing method of the product packaging bag, the roll-printed belt-like film is sent to the folding step of the continuous manufacturing process of the product packaging bag, and this is continuously folded to form a belt-like polymer film, and the upper edge of the belt-like polymer film A plain white header core tape is continuously sandwiched inside the crease, and the header core is formed by dividing the lower edge of the header core tape with a heat seal, and then the band-shaped polymer film is switched to one-pitch movement and blown It transfers to a process and melts and separates the side edge of a bag body, and manufactures a product packaging bag continuously.
In the manufacture of product packaging bags, there is little information about the product depending on the product to be stored.For example, if only the name of the product and the name of the manufacturer are sufficient, if there is an area for the header part, the necessary information about the product Printing is possible.
However, even if there is little such printing information, in the continuous manufacturing method of the product packaging bag, only the width of the portion that overlaps the header portion of the wide strip film that is about twice the height of the product packaging bag is printed. For the most part of the film width, it is necessary to prepare a belt-like printing film on which a plain printing is applied once in a roll form. It is a printing process with very poor printing efficiency to produce a roll of a partially printed belt-like film and store the printing film, which is mostly a plain part, during the printing process.
In addition, when using product wrapping bags for various types of products in small lots, for each type of product, print a belt-like film that is approximately twice the width of the product wrapping bag for each product lot. In addition, there arises a problem that the printing cost increases that many kinds of roll-shaped belt-like printing films must be stored in stock.

JP 2008-254776 A

  The invention of the present application is a long roll used for manufacturing a product packaging bag especially in the case of a product packaging bag of a small variety of products, such as when there is little necessary printing information regarding stored products to be printed on the product packaging bag. The purpose is to improve the printing efficiency of the wound printing film and reduce the printing cost in the manufacturing cost of the product packaging bag.

The present inventor limited the printing surface of the printing information to only the surface of the header portion when the printing information of the bag body is small, particularly in the case of a product packaging bag of a product of a wide variety and a small lot, and the bag of the product packaging bag A product with a structure that uses a non-printed or repetitive pattern printed film for the body part, and a half-fold printed film core material that is a double-folded printing film of the header width inserted in the header part of the product packaging bag. By forming a packaging bag, a wide film as a material for the bag body can be used in the production process as it is without a printing, a solid printing or a repeated pattern printing. This eliminates the need for the printing process for most of the non-printed or repetitive pattern printed portions of the conventional wide belt-like film for bags, and instead only uses a printing film core material that is twice as narrow as the header width. It has been found that the printing efficiency of the product packaging bag can be remarkably improved by performing printing, and the present invention has been completed based on this finding.
That is, the present invention
(1) A polymerized film formed by bending a sheet of non-printed, solid-printed or repetitive pattern-printed thermoplastic resin A at a position corresponding to the upper edge L of the header portion B of the bag, The lower part of the crease part of the upper edge L is divided by a horizontal heat seal D parallel to the upper edge L, and a header part B is formed at the upper part. The right and left side edges of the polymerized film are welded to cover the lower part of the welded bag. In the product packaging bag having the body part side edge E, the welded upper part as the header part side edge F, and the lower part of the polymerized film as the opening part G, the inner side of the header part B formed by dividing by the horizontal heat seal D In addition, the half-folded printing film core H half-folded with the printing surface facing outward is a header portion of a thermoplastic resin film that is not printed on a fold of the half-folded printing film core H, solid printing or repetitive pattern printing The crease of the upper edge L It is stored in close contact with the inner side, and both side edges of the header part of the thermoplastic resin film for non-printing, solid printing or repetitive pattern printing, and both side edges of the inner half-fold printing film core H are the header. A product packaging bag in which four sheets are integrally welded and fixed on the side edge F at the same time, and a long wide belt-like film is sent out to the printing process to divide the wide belt-like film width direction into a plurality of rows. For each row, repeat the repeated pattern to be displayed on the front side or the back side of the header part in parallel at a predetermined interval of the width of the predetermined bag body, and print it in parallel. In the film winding process, the repetitive repetitive pattern of each column is divided by the center line of each column into repetitive repetitive patterns to be displayed on the front side or the back side of the header portion. A roll-shaped printing film core material having a printed pattern of rows is manufactured, and then a wide-width printed film of rolled shape is cut in a rolled shape for each row of printed patterns, The roll-shaped printed film core material having a single printed pattern is separated for each row, and the roll-shaped printed film core material having the single printed pattern is half-folded at the center line. Is used as a half-fold printing film core material H that stores the inside of the header portion B of the product packaging bag,
(2) A rectangular superposed film formed by bending one rectangular non-printing, solid printing or repetitive pattern printing thermoplastic resin film A at a position corresponding to the bottom M of the bag while shifting the center of the rectangle. The leading end of the longer film is folded at a position corresponding to the upper edge L of the header portion B, and the folded film is bent by the horizontal heat seal D parallel to the upper edge L. The header part B is formed by welding and fixing two sheets, the right and left side edges of the polymerized film are welded, the lower part of the weld is formed as a bag part side edge E, and the upper part of the weld is formed as a header part side edge F. In the product packaging bag having an opening G between the leading edge P of the shorter polymer film and the lower edge K of the header, the header B formed by dividing the horizontal heat seal D Inside, print The half-folded printing film core H half-folded with the outer side facing out is formed on the upper edge L of the header portion of the thermoplastic resin film in which the folds of the half-folded printing film core H are not printed, solid printing or repetitive pattern printing. It is stored in close contact with the inner side of the crease, and both side edges of the header part of the thermoplastic resin film for non-printing, solid printing or repetitive pattern printing and both side edges of the inner half-fold printing film core H Is a product packaging bag in which four sheets are simultaneously welded and fixed on the side edge F of the header portion, and a long and wide belt-like film is sent to the printing process to obtain a wide belt-like film width. Divide the direction into multiple columns, and repeat the repeated pattern to be displayed on the front side or the back side of the header part in parallel, with a repetition interval of a predetermined bag width for each column. , In the process of winding a wide belt-like film, the repetitive repeating pattern of each column is a sequence of several numbers in which the repetitive repeating pattern to be displayed on the front side or the back side of the header portion is divided by the center line of each column. A roll-shaped printing film core material having a printed pattern is manufactured, and then the roll-shaped wide printing film is cut in a roll-shaped manner for each row of the printed patterns, so that each row has a single The roll-shaped printed film core material having the printed pattern is separated for each row, and the roll-shaped printed film core material having the single printed pattern is half-folded at the center line, A product packaging bag characterized by being used as a half-fold printing film core H to be stored inside the header B of the product packaging bag ;
( 3 ) Item (1) or Item (2), wherein the repetitive repeating pattern including characters is printed on a solid printing applied to a long and wide thermoplastic resin film. Product packaging bags, and
( 4 ) The product packaging bag according to any one of items (1) to ( 3 ), which has an air hole in the packaging bag portion into which the product of the product packaging bag is placed, and is used for packaging vegetables.
Is to provide.

The product packaging bag according to the present invention can be efficiently printed with a display of the product packaging bag header portion of a variety of products in a small lot.
In addition, if necessary information cannot be printed with just the area of the header part, insert the printed sheet into the bag, etc. Can be applied.
Moreover, the roll-wrapping film core material H used for the product packaging bag of the present invention is obtained by slicing a roll-printed film obtained by dividing a wide strip-like film width direction into a plurality of rows and rolling the print film core material H. In combination with the method of creating a large number of header portions can be printed by a single printing process, and the pattern of printing in a plurality of rows differs from one another according to small lot products. It can be printed. Furthermore, it is possible to easily create a roll-printed film having a small print pattern corresponding to a small lot.
In this case, in the manufacturing process of the same product packaging bag, the roll winding of the printing film core H is replaced with the roll winding of another printing film core H to switch to the production of the product packaging bag of another lot. be able to.

It is a front view of one mode of the packaging bag of the present invention. It is sectional drawing of the one aspect | mode of the packaging bag of this invention. It is a front view of one mode of the packaging bag of the present invention. It is sectional drawing of the one aspect | mode of the packaging bag of this invention. It is a perspective view of one mode after packing bag header part printing of the present invention. It is a perspective view of one mode after the packaging bag header part printing slit of the present invention.

The non-printing, solid printing or repetitive pattern printing thermoplastic resin film A used in the product packaging bag of the present invention constitutes a bag body portion of the product packaging bag, an outer surface covering film of the header portion, and a sealing piece provided in the opening portion. It is a film and can be constituted by one continuous film.
The non-printing, solid printing, or repetitive pattern printing thermoplastic resin film A of the present invention is a film on which information about stored goods is not printed, and is non-printing, solid printing, or simple repetitive pattern printing. be able to. Solid printing is one-color ground-color printing, and as a pattern, a figure and characters form a pattern on the surface of the film at a predetermined interval. Repetitive pattern printing can be used for multiple small lots of products because it can be printed together as a bag film for a specific company or product of a certain genre. The pattern can be printed efficiently.
The material of the half-fold printing film core material H accommodated in the inner side of the thermoplastic resin film A and the header portion B for non-printing, solid printing or repetitive pattern printing can be used without particular limitation as long as it is a thermoplastic resin film. Polypropylene and polyethylene resins are preferred from the viewpoint of heat weldability, and polypropylene film is particularly preferred from the viewpoint of printing and transparency.
The thickness of the non-printing thermoplastic resin film A can be 30 to 100 μm. Moreover, the thickness of the half-folded printing film core H can be 20 to 200 μm, preferably 40 to 70 μm, in order to strengthen the header. Since it is half-fold polymerized, the thickness of the polymerized film becomes twice or more.
In the following description, the case where the non-printing thermoplastic resin film A is used will be described. However, the non-printing thermoplastic resin film A can be replaced with the printing film A having a repetitive pattern.
1st aspect of this invention is a goods packaging bag which has the opening part shown by FIGS. 1-2 in the lower part.
The unprinted thermoplastic resin film A shown in the figure is folded at a position corresponding to the upper edge L of the header portion B shown in FIG. 2 to form a two-sided polymer film. Both outer surfaces are formed, and the lower part of the polymerization film forms both surfaces of the bag body. And the header part B is made by the welding line by welding the polymerization film of the front and back by the horizontal heat seal D parallel to this upper edge L below the crease | fold part of the upper edge L of the polymerization film.
Then, the right and left side edges of the polymerization film are welded, the lower part of the weld is set as the bag part side edge E, the upper part of the weld is set as the header part side edge F, and the side part of the bag part and the header part side edge are formed. Yes. The lower part of the polymerization film is left open, and is used as an opening G for storing products.

The product packaging bag shown in FIGS. 1 and 2 has a half-folded printing film core H that is half-folded with the printing surface on the inner side of the header B formed by dividing the horizontal heat seal D in FIG. As shown, the fold of the half-fold printing film core H is stored in a state of being closely adhered to the inside of the fold of the upper edge L of the header portion of the non-printing thermoplastic resin film A. Then, both side edges of the header portion of the non-printing thermoplastic resin film A and both side edges of the inner half-folded printing film core H are integrally welded and fixed on the header portion side edge F at the same time.
The opening G of FIG. 1 is provided with a sealing piece J, the adhesive piece R is applied to the sealing piece J, and the release paper Q is stuck thereon.
1 is provided with air vent holes N.
The air vent hole N is an air vent for preventing moisture from being accumulated inside the bag body and clouding with fine water droplets when a product with moisture such as vegetables is stored. The product packaging bag for storing vegetables only needs to have the name of the product and the name of the producer, and is a typical product that corresponds to the case where there is little necessary printing information as a bag body of the application example of the product packaging bag of the present invention. In the case of packaging of vegetables and vegetables, the air vent holes N that are inevitably required are provided in FIG.
The 2nd aspect of this invention is a goods packaging bag which has the opening part shown by FIGS.
In the second aspect of the present invention, a rectangular unprinted thermoplastic resin film A is folded at a position corresponding to the bottom M of the bag body while shifting the rectangular center of the unprinted thermoplastic resin film A. Is forming. The leading end of the longer film is folded at a position corresponding to the upper edge L of the header portion B in FIG. 4, and the leading end of the folded film is a horizontal parallel to the upper edge L. A header portion B is formed by welding and fixing two superposed films by a heat seal D. The product packaging bags of FIGS. 3 to 4 are formed by welding the left and right side edges of the polymerized film, forming the welded lower part as the bag body side edge E and the welded upper part as the header part side edge F, and the length of the polymerized film is This is a product packaging bag having an opening G between a shorter tip edge P and a horizontal heat seal D on the lower edge of the header part.
A half-folded printing film core H that is half-folded with the same printing surface as that of the header portion of FIGS. 1 and 2 outside is housed inside the header portion B formed by being separated by the horizontal heat seal D. .
The structure of the header part is the same as in FIGS.

The half-folded printing film core material H accommodated in the header part of the product packaging bag of the present invention is shown in FIG. As shown in FIG. 6, a roll-printed film of a print film having a plurality of repeated print patterns printed simultaneously is drawn out from a single-roll roll-printed film that is cut and separated for each row, and the print film is drawn out. This is preferably half-folded at the center line of the single row and used as the half-fold printing film core H of the product packaging bag of the present invention.
The roll-wrapped printing film of a plurality of rows of repetitive printing patterns shown in FIG. 5 sends out a long wide strip-like film to the printing process, divides the width direction of the wide strip-like film into a plurality of rows, For each row, repeat the repeated pattern to be displayed on the front side or back side of the header section in parallel, with a predetermined width of the bag body repeated, and roll a wide strip of film in a roll shape. It can be manufactured by a taking process.
In this printing process, the repetitive repetitive pattern of each column is divided by the center line of each column into repetitive repetitive patterns to be displayed on the front side or the back side of the header portion.
FIG. 5 is an example in which “Product Name Iro” is displayed on the front side of the header portion of the product packaging bag and “XX Co., Ltd.” is displayed on the back side of the header portion.
In FIG. 5, “product name iro” is printed in the forward direction toward the center line above the center line of the division in the first column. As a result, the characters are printed upside down. Yes. And “manufactured by XX Co., Ltd.” is printed in the forward direction toward the center line below the center line, and is printed in the normal direction up and down.
A roll-printed film separated by slitting the printed line of the first line is formed by half-folding, and the half-folded printed film is fitted inside the header of the product packaging bag with the printing surface facing outward. When placed in close contact, the print of "Product Name Iro" is displayed in the forward direction on the front side of the header part, and the print of "XX Co., Ltd." is displayed on the back side of the header part. .
As described above, when the print display is provided only in the header portion, the repeated repeating pattern of each column is often a repeated repeating pattern including characters of nouns or adjectives.
In this case, the characters of the repeated pattern including noun or adjective characters are opposite to each other across the center line of each column.
The roll-wrapped printing film of a plurality of repeated printing patterns in FIG. 5 has the same company name, although the product name is different for each column.
The roll-printed film of FIG. 5 has the same dimensions, but is suitable when a plurality of products having slightly different functions are packaged and sold in small lot units.
When the required number of product packaging bags can be manufactured using the single-row roll-printed film separated from the multiple-row roll-printed film shown in FIG. In the process, a product packaging bag for a product of another small lot can be continuously produced simply by changing to another different single-row roll-printing film.

  INDUSTRIAL APPLICABILITY The present invention is used for a product packaging bag that is effective in the case of a small amount of printing necessary for a stored product to be printed on a product packaging bag, particularly in the case of a product packaging bag of a variety of products in a small lot.

A Non-printing thermoplastic resin film B Header part D Horizontal heat seal E Bag body side edge F Header part side edge G Opening part H Print film core J Sealing piece K Lower edge of header part L Upper edge M Bag bottom part N Air vent P Tip edge Q Release paper R Adhesive

Claims (4)

A polymerized film formed by bending one sheet of non-printed, solid-printed or repetitive pattern-printed thermoplastic resin film A at a position corresponding to the upper edge L of the header B of the bag, and the upper edge of the polymerized film A header part B is formed at the upper part by dividing the lower part of the crease part of L with a horizontal heat seal D parallel to the upper edge L, and the right and left side edges of the superposed film are welded so that the lower part of the welded part is the bag part side. Printed on the inside of the header part B formed by dividing the horizontal heat seal D in a product packaging bag having an edge E, a welded upper part formed as a header part side edge F, and a lower part of the polymerization film being an opening G The half-folded printing film core H half-folded with the surface outside is the upper edge of the header portion of the thermoplastic resin film of the half-folded printing film core H which is not printed with folds, solid printing or repetitive pattern printing Inside the fold of L It is stored in close contact, and both sides of the header part of the thermoplastic resin film for non-printing, solid printing or repetitive pattern printing and both sides of the inner half-fold printing film core H are the header part side. A product packaging bag in which four sheets are simultaneously welded and fixed on the edge F, and a long wide belt-like film is sent out to the printing process, and the wide belt-like film width direction is divided into a plurality of rows, For each row, repeat the repeated pattern to be displayed on the front side or the back side of the header part in parallel at a predetermined interval of the width of the predetermined bag body, and perform a wide belt-like film in a roll shape. In the winding process, the repetitive repeat pattern of each column is a sequence of several sequences in which the repetitive repeat patterns to be displayed on the front side or the back side of the header part are separated by the center line of each column. A roll-shaped printing film core material having a printed pattern is manufactured, and then the roll-shaped wide printing film is cut in the form of a rolled film for each column of the printed pattern, so The roll-shaped printed film core material having the printed pattern is separated for each row, and the roll-shaped printed film core material having the single printed pattern is half-folded at the center line, A product packaging bag, characterized in that it is used as a half-fold printing film core H to be stored inside the header part B of the product packaging bag. A rectangular superposed film formed by shifting a rectangular non-printed, solid print or repetitive pattern printed thermoplastic resin film A at a position corresponding to the bottom M of the bag while shifting the center of the rectangle. The leading end of the film having the longer length is folded back at a position corresponding to the upper edge L of the header portion B, and the two folded films are separated by the horizontal heat seal D parallel to the upper edge L at the leading end portion of the folded film. The header part B is formed by welding and fixing, the right and left side edges of the polymerized film are welded, the welded lower part is formed as a bag part side edge E, and the welded upper part is formed as a header part side edge F. In the product packaging bag having an opening G between the tip edge P having a shorter length and the lower edge K of the header portion, inside the header portion B formed by dividing by the horizontal heat seal D, Print side out The half-folded printed film core material H is half-folded, and the folds of the upper edge L of the header portion of the thermoplastic resin film of solid printing or repetitive pattern printing are not printed. It is stored in close contact with the inner side, and both side edges of the header part of the thermoplastic resin film for non-printing, solid printing or repetitive pattern printing, and both side edges of the inner half-fold printing film core H are the header. A product packaging bag in which four sheets are integrally welded and fixed on the side edge F at the same time, and a long and wide belt-like film is sent to the printing process so that the wide belt-like film width direction is Divided into multiple rows, each row is repeated with a predetermined bag width repeat, and repeated repeating patterns to be displayed on the front side or back side of the header portion are printed in parallel, and rolled. In the process of winding a wide belt-like film, the repetitive repetitive pattern of each row is a printed pattern of several rows in which the repetitive repetitive pattern to be displayed on the front side or the back side of the header portion is divided by the center line of each row. A roll-shaped printing film core material is manufactured, and then the roll-shaped wide printing film is cut in a roll-shaped manner for each printed pattern row, and a single printed pattern in each row A roll-shaped printed film core material having a single printed pattern is divided into half-folds at the center line, and the product packaging bag is separated from the roll-shaped printed film core material having a single printed pattern. A product packaging bag characterized by being used as a half-folded printing film core material H housed inside the header part B of the product . The product packaging bag according to claim 1 or 2, wherein the repetitive repeating pattern including characters is printed on a solid print applied to a long and wide thermoplastic resin film. The product packaging bag according to any one of claims 1 to 3 , which has an air hole in a packaging bag portion into which the product of the product packaging bag is placed and is used for packaging vegetables.

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