JP2005212902A - Easily openable sealed packaging bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a sealed packaging bag where juxtaposed cutting-plane lines represented on an upper part of a zipper part by a solid line or a dotted line are printed on the surface of the bag, so that the bag in the state of close adhesion can be easily opened when the bag is unsealed, where longitudinally symmetrical chevron-shaped protrusive pieces are formed in such a manner that a cut part serves as an opening edge, by making the cutting-plane line form a meandering figure in a proper position and performing cutting along the cutting-plane line, and which can be easily opened by taking the chevron-shaped protrusive pieces between a person's fingers and pulling it rightward and leftward. <P>SOLUTION: In this sealed packaging bag, a bag body 2 is formed of a thermally-adhesive synthetic resin film 1; an opening 3 of the bag body is provided with the zipper part 4; the cutting-plane lines 7, which are juxtaposed on the upper part close to the zipper part and represented by the solid line 5 or the dotted line 6, are printed on the surface of the bag, and form the meandering figure 8 in the proper position; and the cutting is performed along the cutting-plane lines, so that the cut part can serve as the opening edge and so that the longitudinally symmetrical chevron-shaped protrusive pieces 10 can be formed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

    The present invention relates to a sealed packaging bag that can be easily opened.

        Patent Application No. Hei 7-219173 Patent Publication No. Hei 9-58703         Patent application 2003-436066         Patent application 2003-436933

    Since the conventional sealed packaging bag with a chuck is provided with a chuck portion in the vicinity of a straight perforation at the opening edge, there is a problem that the opening portion is difficult to open when the bag is closed.

    In the packaging bag provided with a chuck portion and hermetically sealed, a parallel cutting line represented by a solid line or dotted line is printed on the top of the chuck portion on the bag surface so that the bag in a close contact state can be easily opened at the time of opening, By drawing a detour figure at the appropriate position of the cutting line and cutting along the cutting line, the cutting part becomes an opening edge to form a symmetrical back-and-front protrusion, which is gripped with fingers and pulled left and right Accordingly, it is an object of the present invention to provide a sealed packaging bag that can be easily opened.

    In order to achieve the above-mentioned problem, a bag body is formed using a thermo-adhesive synthetic resin film, a chuck portion is provided at the opening of the bag body, and a solid line or a dotted line parallel to the upper portion adjacent to the chuck portion is provided. The cutting line to be printed is printed on the bag surface, and the cutting line draws a circumflex figure at an appropriate position and cut along the cutting line, so that the cutting part becomes an opening edge and a back-and-forth symmetrical chevron is formed Take.

    In addition, by drawing a plurality of detour figures at appropriate positions on the cutting line printed on the bag surface and cutting along the cutting line, the cut portion becomes an opening edge, and a plurality of angle-shaped protrusions are formed symmetrically in the front-rear direction. You may do it.

    Also, in the upper part of the bag body near the chuck part, a chevron curve is printed at the center of the bag surface in the parallel direction, cut from the upper bag outer edge near the chuck part, and cut along the chevron curve. You may do it.

    The cutting line printed on the bag surface draws an arbitrary figure at an appropriate position and cuts along the cutting line, so that the cutting part becomes an opening edge and a plurality of arbitrary protruding pieces are formed symmetrically in the front-rear direction. preferable.

    The sealed packaging bag of the present invention that can be easily opened has a detoured figure drawn and printed on a cutting line represented by a solid line or a dotted line in parallel on the upper part of the bag body close to the chuck part, along the cutting line. If you cut it, you will have a back-and-forth symmetrical angle-shaped protrusion on the edge of the opening, you can grip the angle-shaped protrusion with your finger and open it to the left and right, and easily open the bag in close contact. It is also useful for maintaining the freshness in the bag.

    The best mode for carrying out the invention will be described with reference to the drawings based on the embodiments. In the embodiment shown in FIGS. 1 to 2, a bag body 2 is formed using a thermoadhesive synthetic resin film, and a chuck portion 4 is provided in an opening 3 of the bag body 2, and an upper portion close to the chuck portion 4. A cutting line 7 represented by a solid line 5 or a dotted line 6 that is parallel to the printed line is printed on the bag surface, the cutting line 7 draws a detour figure 8 at an appropriate position, and cuts along the cutting line 7 so that the cutting part is opened. It becomes the edge 9, and the angle-shaped protrusion 10 which is symmetrical back and forth is formed.

    Further, in the embodiment shown in FIG. 3, the cutting line 7 printed on the bag surface is drawn with a plurality of curved figures 8 at appropriate positions, and cut along the cutting line 7, so that the cut portion becomes the opening edge 9. A plurality of angle-shaped protrusions 10 are formed symmetrically in the longitudinal direction.

    Then, in the embodiment shown in FIG. 4, a chevron 12 is printed on the central portion 11 of the bag surface in the parallel direction at the upper portion of the bag body 2 near the chuck portion 4, and the upper portion of the bag body 2 close to the chuck portion 4 is printed. It is cut from the bag outer edge 13 so that it can be cut along the chevron curve 12.

    With the configuration as described above, by cutting the cutting line 7 indicated by the solid line 5 or the dotted line 6 parallel to the upper part of the bag body 2 close to the chuck part 4, the cutting part becomes the opening edge 9 and is a front and rear symmetrical mountain shape. When the projecting piece 10 is formed and the angle-shaped projecting piece 10 is grasped with a finger and opened to the left and right, the closely attached bag can be easily opened.

  It is a front view which shows the Example of the cutting line by the continuous line of this invention.   It is a front view which shows the Example of the cutting line by the dotted line of this invention.   It is a front view which shows the Example of the several detour figure of this invention.   It is a front view which shows the angle curve of the center part of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Thermal adhesive synthetic resin film 2 Bag main body 3 Opening part 4 Chuck part 5 Solid line 6 Dotted line 7 Cutting line 8 Deflection figure 9 Opening edge 10 Mountain-shaped protrusion 11 Yamagata curve 12 Bag outer edge

Claims (4)

    A bag body is formed using a heat-adhesive synthetic resin film, a chuck portion is provided at the opening of the bag body, and a cutting line represented by a solid line or a dotted line parallel to the upper portion adjacent to the chuck portion is printed on the bag surface. Then, the opening is characterized in that the cutting line draws a detoured figure at an appropriate position and cuts along the cutting line so that the cutting part becomes an opening edge and a back-and-forth symmetrical mountain-shaped protrusion is formed. Can be sealed packaging bag.     A cutting line printed on the bag surface is drawn at a suitable position to draw a plurality of detours and cut along the cutting line, whereby the cut portion becomes an opening edge and a plurality of angle-shaped protrusions are formed symmetrically in front and back. Item 2. A sealed packaging bag in which the opening according to item 1 can be easily formed.     A chevron curve is printed at the center of the bag surface in the parallel direction at the upper part close to the chuck part of the bag body, and cut along the chevron curve from the upper bag outer edge close to the chuck part. Item 2. A sealed packaging bag in which the opening according to item 1 can be easily formed.     The cutting line printed on the bag surface draws an arbitrary figure at an appropriate position and cuts along the cutting line, whereby the cutting portion becomes an opening edge and a plurality of arbitrary protruding pieces are formed symmetrically in the front-rear direction. Sealed packaging bag with easy opening.

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