JP6376243B2 - Packaging bag - Google Patents

Description

The present invention relates to a packaging bag .

  Conventionally, in a three-side seal type, four-side seal type, or standing type packaging bag, the outer edge of the front side laminate constituting the packaging bag starts from the outer edge of the left edge thermal bonding portion, and the right edge heat A continuous first cut line is formed with the outer edge of the bonded portion as the end point (the position of the starting point and the end point in the height direction [the direction parallel to the left and right side edge thermal bonding portions] is the same), and the packaging bag is configured. In the outer layer of the back side laminate, the outer edge of the left edge thermal bonding part is the starting point, and the outer edge of the right edge thermal bonding part is the end point (the height direction of the starting point and end point [parallel to the left and right side edge thermal bonding parts A second cut line that is continuous as the direction of the direction] is formed, and a part of the formation positions of the first cut line and the second cut line on the rectangular plane of the laminate in a state where the packaging bag is viewed in plan By making it different, the first cut line and the second cut line When the upper end side of the packaging bag is torn open in the width direction (the direction orthogonal to the left and right side edge thermal bonding portions), the outer side of the cut surface of the laminate on the front side that forms the tear opening and the back side lamination There has been proposed a packaging bag in which an opening when a content is taken out is made easier by making a difference in a tear opening by making the outline of a cut surface of the body different (see, for example, Patent Document 1).

  Furthermore, a packaging bag is also proposed in which a step is created in the same kind of tear opening to facilitate opening when the contents are taken out, and a packaging bag having a reseal function (see, for example, Patent Document 2). ).

  Here, as in the second embodiment of the packaging bag described in Patent Document 1 or the packaging bag described in Patent Document 2, one of the first cut line and the second cut line (for example, the back side) is used. A straight cut line of one of the laminates along the straight cut line, with a straight cut line and the other (for example, the front side) an irregular (non-linear) cut line swollen to the lower end side. A tongue-shaped step due to a combination of a general outline and an arc-shaped outline of the cut surface of the other laminate along the cut line bulging on the lower end side is most desirable as a step for easily opening with fingers It is said that.

However, as a result of studying the mechanism by which the actual tear line at the time of opening is deviated from the cut line, the present inventor has found that the tear line does not deviate from the cut line. On the other hand, as in the packaging bag described in Patent Document 1, it is confirmed that the probability that the tear line is removed increases in the cut line that combines the horizontal line and the curved line.

Therefore, it is undeniable that there is a demerit of providing an irregular cut line inherently, that is, the possibility that the tear line deviates from the cut line as compared with the cut line that tears into one horizontal character. The original disadvantage that such an irregular cut line is incurred hardly occurs when the user opens a bag of 10 cm width for about 10 seconds at a normal speed, for example, an adult male, This may occur when the user opens a bag with a very high speed, for example, an adult male with a width of 10 cm in one second.

Furthermore, when opening the packaging bag, the surface with the irregular cut line of the packaging bag is turned forward, the area on the upper end side from the cut line is picked and teared forward, and along the irregular cut line. An arc-shaped tear line that swells to the lower end side is formed, but some users open the bag with the irregular cut line side of the packaging bag facing forward and the upper end from the cut line. In some cases, the tearing line may be removed from the irregular cut line, and the initially planned tongue piece-shaped step may not be formed.

JP 2005-289396 A JP 2003-104394 A

From the above, the present invention can reduce the possibility that the tear line will deviate from the score line even if it is an irregular score line, and widen the allowable range of the tear rate for forming a good tear opening. Naturally, it is necessary to devise and improve the incision / improvement by factors other than the shape of the score line and the shape of the score line formed on the front and back laminates constituting the packaging bag and combinations thereof. It is a first object to provide a packaging bag having such a function.

Therefore, as a result of analyzing the mechanism by which the actual tear line at the time of opening is deviated from the score line, the present inventor has found a layer (inside the intermediate layer made of aluminum foil in which the score line is not formed) If at least one of the layers is a layer having orientation, when this does not coincide with the score line, the score line is mainly, for example, a straight line to an oblique line, There is an increased probability that the tear line will deviate from the score line at the transition point from the oblique line to the straight line, from the straight line to the curve, from the curve to the straight line, or at the inflection point of the curve where the inflection point exists. A good tear line that follows the score line of the outer layer by making a packaging bag composed of a laminate that does not have orientation in any of the layers arranged on the inner layer side of the intermediate layer consisting of Match cut line Tear lines) can be formed, i.e., to reduce the disadvantages described above, has gained knowledge that can solve the foregoing problems.

Furthermore, the present invention can be easily torn and opened, and the tear opening when it is torn and opened is beautiful and the outer surface of the laminate on the front and back of the tear opening has different steps, which makes it easy with fingers. In a packaging bag having at least an outer layer that can be picked and opened, an intermediate layer made of aluminum foil, and an inner layer made of a heat-adhesive resin, the shape of the score line and the cut formed on the front and back laminates constituting the packaging bag By devising the shape of the line of sight and the combination thereof, the packaging bag can be torn without tearing away from the cut line even if it tears in the tearing direction at the time of opening, specifically the front side or the back side It is a second subject to provide

Furthermore, it is a third object of the present invention to provide a packaging bag having a resealing function by providing a synthetic resin occlusion device made up of a male member and a female member that are engaged with each other at opposing positions on the inner surface of the packaging bag. Let it be an issue .

In order to achieve the above object, the present inventor
The present invention described in claim 1
It is a packaging bag composed of a laminate having at least an outer layer, an intermediate layer made of aluminum, and an inner layer made of a heat-adhesive resin, and arranged so that the inner layer of the laminate is on the inside,
The packaging bag includes a first surface and a second surface of the same shape facing each other in the thickness direction,
The thickness direction in the packaging bag is defined as the first surface side and the second surface side with respect to the first surface and the second surface,
The upper, lower, left and right directions in the packaging bag are defined as an upper side, a lower side, a left side, and a right side, based on the case where the packaging bag is viewed in plan from the first surface side,
The first surface and the second surface are joined at the left edge thermal bonding portion and the right edge thermal bonding portion,
An opening means is provided from the left edge thermal bonding portion to the right edge thermal bonding portion,
The unsealing means includes a first surface side cut line formed in the outer layer of the first surface, and a second surface side cut line formed in the outer layer of the second surface,
The first side cut line is
The first surface side middle side upper swelling curve portion having an inflection point on the upper side connecting the left end and the right end at the middle position in the left-right direction,
The first surface side middle side lower swelling curve portion having an inflection point on the lower side connecting the left end and the right end shared with the first surface side middle side upper swelling curve portion at the middle position in the left-right direction,
The second surface-side score line has a horizontal line portion on the second surface side that proceeds in the left-right direction connecting the left end and the right end at a middle position in the left-right direction,
The cut surface of the first surface formed by one of the first surface side middle side upper bulge curve portion and the first surface side middle side lower bulge curve portion when the opening means tears open in the left-right direction. The outer surface of the second surface and the outer surface of the cut surface of the second surface formed by the horizontal line portion on the second surface side side, and has a function of forming a step in the tear opening,
Both the first surface and the second surface are composed of an unstretched film and / or an unstretched resin layer.

  The present invention according to claim 2
In the packaging bag according to claim 1,
The second surface side cut line is
The left edge thermal bonding portion extends leftward starting from a position higher than the vertical position of the horizontal line portion on the second surface side inside, and leftward from the inner edge of the left edge thermal bonding portion. It has a diagonal line part on the left side on the left side of the second surface with the position retracted as the end point,
In the left edge thermal bonding portion, it extends in the upper right direction starting from a position lower than the vertical direction position of the horizontal line portion on the second surface side inside, to the left side from the inner edge of the left edge thermal bonding portion It has an upper right diagonal line part on the left side of the second surface with the retracted position as the end point,
In the right edge thermal bonding portion, the lower edge is extended from the position higher than the vertical position of the horizontal line portion on the second surface side in the middle to the right from the inner edge of the right edge thermal bonding portion. Provided with a left-down diagonal line portion on the right side of the second surface with the retracted position as the end point,
In the right edge thermal bonding part, it extends in the upper left direction starting from a position lower than the vertical direction position of the horizontal line part on the second surface side inside, and is on the right side from the inner edge of the right edge thermal bonding part. It is provided with an upper left diagonal line portion on the right side of the second surface whose end point is the retracted position.

  Further, the present invention described in claim 3
In the packaging bag according to claim 1 or 2,
The second surface side cut line is
A left side horizontal line portion that proceeds in the left direction from the left end of the horizontal line portion on the second side on the left side in the left-right direction,
A right side horizontal line part that proceeds in the right direction from the right end of the horizontal line part on the second surface side in the right side position in the left-right direction,
The horizontal line part on the left side of the second surface side, the horizontal line part on the second side of the second surface side, and the horizontal line part on the right side of the second surface side are arranged in the same vertical position so as to form the same straight line, Is.

  Further, the present invention according to claim 4 provides
The packaging bag according to claim 3,
The second surface side cut line is
A horizontal line portion on the left side of the second surface side that proceeds from the left end of the horizontal line portion on the left side of the second surface side to the left side in the left and right direction and reaches the outer edge of the left edge thermal bonding portion. Prepared,
A horizontal line part on the right side of the second surface side that proceeds from the right end of the horizontal line part on the right side of the second surface side to the right side in the right and left direction and reaches the outer edge of the right edge thermal bonding part. Prepared,
The horizontal line portion on the left side of the second surface side, the horizontal line portion on the left side of the second surface side, the horizontal line portion on the middle side of the second surface side, the horizontal line portion on the right side of the second surface side, and the horizontal line portion on the right side of the second surface side. Are arranged in the same vertical position so as to form the same straight line.

  Further, the present invention according to claim 5 provides:
In the packaging bag according to any one of claims 1 to 4,
The first side cut line is
In the left edge thermal bonding portion, the left side of the first surface side middle side of the upper bulge curve portion and the lower bulge curve portion is extended to the lower right direction starting from a position higher than the vertical position of the left end in common. The first surface side left side diagonal line portion with the end point being the position retracted to the left side from the inner edge of the edge thermal bonding part,
The left edge thermal bonding portion extends in the upper right direction starting from a position lower than the vertical position of the left end in common with the upper bulge curve portion and the lower bulge curve portion of the first surface side middle side, and A diagonal line part on the upper right side on the left side of the first surface with the end point being the position retracted to the left side from the inner edge of the edge thermal bonding part,
In the right edge thermal bonding portion, the first surface side middle side upper bulge curve portion and the lower bulge curve portion are extended in the lower left direction starting from a position higher than the vertical position of the right end common to the right side edge The first surface side right-hand side diagonal line part with the position retreated to the right side from the inner edge of the edge thermal bonding part as the end point,
In the right edge thermal bonding portion, the right side edge of the first surface side is extended in the upper left direction starting from a position that is lower than the vertical position of the right end common to the upper bulge curve portion and the lower bulge curve portion on the right side, and The second surface side right side diagonal line part which makes the end point the position retreated to the right side from the inner edge of an edge thermal-bonding part is provided.

  Further, the present invention according to claim 6 provides
In the packaging bag according to any one of claims 1 to 5,
The first side cut line is
The left side in the left-right direction has a horizontal line portion on the left side of the second surface side that proceeds in the left direction from the left end common to the upper bulge curve portion and the lower bulge curve portion of the first surface side inside,
A right side horizontal line portion that proceeds in the right direction from the common right end of the first bulge curve portion and the lower bulge curve portion at the right side in the left-right direction, It is.

  The present invention according to claim 7 provides
The packaging bag according to claim 6,
The first side cut line is
One horizontal line portion on the left side of the first surface that proceeds leftward from the left end of the horizontal line portion on the left side of the first surface to the left side position in the left-right direction and reaches the outer edge of the left edge thermal bonding portion Prepared,
A single horizontal line portion on the right side of the first surface that proceeds from the right end of the horizontal line portion on the right side of the first surface to the right side in the left-right direction and reaches the outer edge of the right edge thermal bonding portion. Prepared,
The horizontal line part on the left side of the first surface side and the horizontal line part on the left side of the first surface side are arranged in the same vertical position so as to form the same straight line,
The horizontal line part on the right side of the second surface side and the horizontal line part on the right side of the second surface side are arranged in the same vertical position so as to form the same straight line.

  Further, the present invention according to claim 8 provides:
In the packaging bag according to any one of claims 1 to 7,
The opening means is
At a position in the left-right direction that is retreated to the left side from the inner edge of the left edge thermal bonding portion from the outer edge of the left edge thermal bonding portion,
In a vertical position with a width that sandwiches the vertical position of the horizontal line portion on the second surface side middle side or the vertical position of the horizontal line portion on the second surface side middle side,
Comprising left-side opening start means that are I-notches, notches or scars;
At the position in the left-right direction that has receded from the outer edge of the right edge thermal bonding portion to the right side from the inner edge of the right edge thermal bonding portion,
In a vertical position with a width that sandwiches the vertical position of the horizontal line portion on the second surface side middle side or the vertical position of the horizontal line portion on the second surface side middle side,
It is provided with a right-side opening start means that is a group of I notches, notches or scars.

The present invention according to claim 9
In the packaging bag according to any one of claims 1 to 8,
  A protruding male member and a female recess that mesh with each other at opposite positions below the opening means in the inner layer of the first surface and the inner layer of the second surface constituting the inner surface of the packaging bag. A synthetic resin bite made of members is provided,
  The male member and the female member are engaged to provide a reseal function.

According to this invention, the first surface and the second surface of the packaging bag (1) are all unstretched films and / or unstretched resin layers, the layers disposed on the inner layer side from the intermediate layer made of aluminum foil. Since the layers arranged on the inner layer (13) side from the intermediate layer (12) of the first surface (10) and the second surface (10) are all not oriented, the packaging bag (1) is torn along the outer layer cut line (first surface side cut line 3, second surface side cut line 3 ′) from one (left side) outer edge of the left and right edge thermal bonding portions (2 ′) And, it is possible to achieve a higher degree of better followability that can form a good tear opening that matches the outer layer score line (first surface side score line 3, second surface side score line 3 ′), Therefore, the allowable range of tearing speed for forming a good tearing opening can be expanded. .

Furthermore, according to this invention, the first surface (10) provided with the first surface side cut line (3) of the packaging bag (1) is directed forward, and the opening means (3, 3 ', N1, N2) . When the upper region is picked with fingers and torn forward, the first surface (10) on the front side of the first surface (10) and the second surface (10) of the packaging bag (1 ) is the first surface. A tear line is formed along the side cut line (3), but on the inner side, a tear line is formed along the lower swelling curve portion (30F) on the first surface side inner side , and conversely, the opening means (3 , 3', N1, N2 when tearing the back side picking region above), of the first surface of the packaging bag (1) comprises (10) and a second surface (10), a first front side In the surface (10), a tear line is formed along the first surface side cut line (3), but in the middle side, tearing occurs along the upper surface curve portion (30E) on the first surface side middle side. Since the piercing line is formed, it can be torn without detaching from the score line.

Furthermore, in the opposing position (β) below the tearing means in the inner layer (13) of the first surface (10) and the inner layer (13) of the second surface (10) constituting the inner surface of the packaging bag (1). , A synthetic resin occlusion device (20) comprising a protruding male member (21) and a concave female member (22) meshing with each other is provided, and the male member (21) and the female member ( 22) can be made into a packaging bag having a resealing function.

It is a top view which shows diagrammatically the positional relationship of the cut line of the packaging bag concerning this invention, and an occlusion tool. It is a figure which shows the XX sectional view of FIG. It is the principal part top view seen from the 1st surface side which shows 1st Embodiment of the score line formed in the packaging bag concerning this invention illustratively. (A) is a figure which shows the YY sectional view schematically of FIG. 3, (b) is a figure which shows the ZZ sectional view schematically of FIG. It is the principal part top view seen from the 1st surface side which shows 3rd Embodiment which combined the V-shaped notch with the score line formed in the packaging bag concerning this invention. It is an opening figure of the state which left the edge thermal bonding part of the right side of the packaging bag shown in FIG. It is the principal part top view seen from the 1st surface side which shows diagrammatically 5th Embodiment of the score line formed in the packaging bag concerning this invention. It is the principal part top view seen from the 1st surface side which shows diagrammatically 6th Embodiment of the score line formed in the packaging bag concerning this invention. It is a principal part top view seen from the 1st surface side which shows diagrammatically 7th Embodiment of the score line formed in the packaging bag concerning this invention.

The above-described present invention will be described in detail below with reference to the drawings.
In addition, in this paragraph, the correspondence relationship with the constituent elements defined in the scope of claims with respect to the constituent elements with reference numerals is described in parentheses.
1 is a plan view schematically showing the positional relationship between a cut line and a bite of a packaging bag according to the present invention, FIG. 2 is a diagram schematically showing a cross section taken along line XX of FIG. 1, and FIG. The principal part top view seen from the 1st surface side which shows diagrammatically 1st Embodiment of the cut line formed in this packaging bag, FIG.4 (a) is a figure which shows the YY sectional view schematically of FIG. , (B) is a diagram schematically showing a cross section taken along the line ZZ in FIG. 3 , and FIG. 5 is a diagrammatic illustration of a third embodiment in which V-shaped notches are combined with cut lines formed in the packaging bag according to the present invention . fragmentary plan view seen from the first surface side shown in FIG. 6 is a open view of a state in which left the right edge heat seal portion of the packaging bag shown in FIG. 3, 1 in the figure packaging bag 2 edge heat seal portion 2 'is left-side and right edge heat seal portion, 2 "edge heat seal portion of the upper side and lower side, 3 the first surface side score line, 3' and the second side score line 10 is laminate (first surface and Dihedral), 11 outer layer, 12 is an intermediate layer, 13 inner layer, 20 is made of synthetic resin zipper, 21 convex male member, 22 is a female member of concave, 30A is the 1-1 origin side Converged cut line ( first surface side cut line / first surface side left-side downward diagonal line portion, first surface side left side horizontal line portion and first surface side left-side upward diagonal line portion ), 30B is first -1 end side converging cut line ( first surface side cut line / first surface side right side diagonal line part, first side side right side horizontal line part and first side side right side diagonal line part ) 30C is a first-second origin side straight cut line ( first surface side cut line / horizontal line portion on the left side of the first surface side ), and 30D is a first-second end point side straight cut line ( first surface-side cut line / first line ). horizontal portion of the side right), 30 E curve portions bulging on the 1-3 upper side score line (first surface side score line / first surface side of the side), 30 F the first 1-3 lower side switching Line (first surface side score line / round-faced curve portion of the first surface side of the side), 31A is right downward slanting line of the 2-1 origin side converging shape score line (second surface side score line / second surface side left Part, the horizontal line part on the left side of the second surface side, and the upper right diagonal line part on the left side of the second surface ), 31B is the 2-1 end side converged cut line ( second surface side cut line / second surface side right side) , A left side diagonal line portion, a horizontal line portion on the right side of the second surface side, and an upper left diagonal line portion on the right side of the second surface side ), 31C is a 2-2 origin side straight cut line ( second surface side cut line / Horizontal line part on the left side of the second surface side ), 31D is a 2-2 end point side straight cut line ( second line side cut line / horizontal line part on the right side of the second surface side ), and 31E is a straight line shape on the second-3 center side. Cut line ( second line side cut line / second line side middle horizontal line part ), N1 is V-shaped notch (one example of left and right side tear initiation means / notch) , N2 is U-shaped notch (left And another example of the right tear-initiation means or notches), alpha denotes score line forming region, beta is a zipper formation region, respectively.

FIG. 1 is a plan view schematically showing the positional relationship between a score line and a bite of a packaging bag according to the present invention, and FIG. 2 is a diagram schematically showing a cross section taken along line XX of FIG. The outer layer 11, the intermediate layer 12 made of aluminum foil, and the inner layer 13 made of a heat-adhesive resin layer are laminated, the inner layers 13 of the rectangular laminate 10 are overlapped with each other, and the four peripheral edges are thermally bonded. It is a four-side seal type packaging bag sealed with a heat bonding part 2. In addition, in this specification, in the said edge thermal bonding part 2, it is located in the edge part of the left-right direction in FIG. 2 is referred as a left side and right edge heat seal portion 2 ', 1 vertical pair which are formed over the lateral direction as well as positioned at an end portion of the end edge heat-bonding part in such 2 the referred to as edge heat seal portion 2 "of the upper side and lower side. and outer layer of one (first surface) of the rectangular laminate 10 the packaging bag 1 constituting the packaging pouch 1 and the other (the The cut line forming region α and the cut line forming region in which the first cut line 3 and the second cut line 3 ′ are formed on the outer layer of the second surface so that the forming positions are different in the plan view of the packaging bag 1 respectively. lower side Toka (lower edge heat-bonding unit 2 'side) of the male member 21 and the concave ridge mutually meshed with each other in the female member 22 than α Made of synthetic resin zipper 20 consists of a snap fastener forming region β provided.

Next, embodiments of the cut lines (the first cut line 3 and the second cut line 3 ′) formed in the packaging bag 1 will be specifically described in detail. FIG. 3 is a plan view of an essential part of the first embodiment of the cut line formed in the packaging bag according to the present invention as seen from the first surface side, and FIG. 4A is a cross-sectional view taken along line YY in FIG. (B) is a figure which shows the ZZ line cross section of FIG. 3 schematically, Comprising: A cut line is one side ( 1st surface ) of the laminated body 10 which comprises the packaging bag 1. FIG. The first cut line 3 formed in the outer layer 11 and the second cut line 3 ′ formed in the outer layer 11 on the other side ( second surface ) of the laminate 10 constituting the packaging bag 1.

Furthermore, the outer edge of one of the laminated body 10 constituting the packaging pouch 1 first score line 3 formed on the outer layer 11 of the (first surface), one of the left-side and right end heat-bonding unit 2 '(left) of three and the other said each traveling in a direction toward the inner edge of the left and right side edge heat seal portion 2 'and a point 3 of the outer edge left and right side edge heat seal portion of the (right) 2 vertical phase parallel to 'the left side and right edge heat seal portion 2 of the position converging to which the packaging bag 1 does not reach the inner edge' (position) (e.g., the upper side edge heat seal portion 3 "1-1 start-point-side convergent cut lines 30A having the same distance from the 2" outer edge), 3 1-1 end-point-side convergent cut lines 30B, and these 1-1 start-side converged lines respectively perpendicular to the left side and right edge heat seal portion 2 'convergent point of Jo score line 30A and the convergent point and the 1-1 end point converge shaped score line 30B Vertical phase parallel to left side and right edge heat seal portion 2 'left side and right edge heat seal portion 2 inner edge than it is in the packaging bag 1 reaches the inside of the' in traveling to the right ( position) (e.g., one of the 1-2 origin side straight score line 30C to a distance) from the outer edge of the edge heat seal portion 2 of the upper side "similarly, one 1-2 end point linear The first to third upper end sides that swell upward from the cut line 30D, and the one first and second start-side straight cut lines 30C and one first and second end-side straight cut lines 30D. It is composed of a cut line 30E and a first to third lower end cut line 30F that swells downward .

Further, the second score line 3 formed on the outer layer 11 of the other laminate 10 constituting the packaging bag 1 (the second surface) ', the left side and the right end heat-bonding unit 2' one (left) the three outer edge and the other, respectively from a point 3 proceeds in a direction toward the inner edge of the left side and right edge heat seal portion 2 'left side and right edge heat seal portion of the outer edge of the (right) 2 vertical phase parallel to 'the left side and right edge heat seal portion 2 of the position converging to which the packaging bag 1 does not reach the inner edge' (position) (e.g., the upper side edge heat seal portion 3 "2-1 start-point-side convergent cut lines 31A having the same distance from the outer edge of 2"), three 2-1 end-point-side convergent cut lines 31B, and these 2-1 start-side converged lines convergent point of Jo score line 31A and the left perpendicular to each left side and right edge heat seal portion 2 'from the convergent point and the 2-1 end point converge shaped score line 31B A 2-2 start point-side straight line extending in the same direction (position) and length as the first-1-2 start point-side straight cut line 30C and the 1-2 end point-side straight cut line 30D. The cut line 31C, the 2-2 end point side straight cut line 31D, and the end points of the 2-2 start point side straight cut line 31C and the 2-2 end point side straight cut line 31D are connected in a straight line. It is comprised from the 2nd-3 center straight cut line 31E.

Regarding various cut lines, the various cut lines constituting the first cut line 3 are marked with “first”, and “1-1” and “first” are sequentially arranged from the outer edges of the left and right end thermal bonding portions 2 ′. The words “1-2” and “1-3” are added, and the various cut lines constituting the second cut line 3 ′ are marked with “second” and left - from the outer edge of the right end heat-bonded portions 2 'in order "2-1" are denoted by the wording added the branch number of "2-2", more branch number is small, the left side and right end thermal bonding unit 2 'becomes the outer edge side of the score line, the greater the branch number, left side and right end heat-bonding unit 2' becomes closer to the center of the score line away from the outer edge of the.

  Further, the 2-2 start point side straight cut line 31C, the 2-2 end point side straight cut line 31D, and the 2-3 central side straight cut line 31E are aligned in the same straight line, However, it is not necessary to classify the first and second start side straight cut lines 30C, and a portion (part) that coincides with the first and second start side straight cut lines 31C is defined as a second and second start side straight cut lines 31C. The portion (part) that coincides with the end-point-side straight cut line 30D on the front and back is defined as the 2-2 end-point-side straight cut line 31D, and the remaining portion (part) is defined as the second-third central straight-cut. This is defined as a line of sight 31E.

Packaging bag 1 configured as described above, the outer edge of the left side (the origin side) of the first switching left side and right edge heat seal portion 2 eyes 3 intersect ', for example, upper side from the left side of the Figure 3 When the region is picked up with fingers and torn to the near side from the first cut line 3, among the two laminates constituting the packaging bag, the front laminate and the back laminate are the three first pieces. -One of the starting point side converging cut lines 30A and one of the three 2-1 starting point side converging cut lines 31A are torn together to reach the converging point on the starting point side. It is torn linearly along the following first-second origin-side linear cut line 30C and second-second origin-side linear cut line 31C, and the tear-opening line swells to the lower end side. 3 To reach the branch point of the lower end side cut line 30F and the 1-3rd upper end side cut line 30E that swells to the upper end side, and torn to the near side As a result, the first cut line 3 extends from the first-second start side straight cut line 30C to the first-third lower end side cut line 30F, and the second cut line 3 ′ has the second-second start point. The second straight center cut line 31C is torn apart from each other along the second to third central straight cut line 31E, and the tear opening lines are the first and second end side straight cut lines 30D and 2D. -2 to the end point-side straight cut line 31D, and in the first cut line 3, the 1-3 lower end side cut line 30F is along the 1-2 end-point side straight cut line 30D, and the second cut line At 3 ', the first and second end-side converging shapes follow the first and second end-side convergent points which are torn linearly and integrally along the second-and-end-end-side straight cut line 31D. Any of the cut lines 30B and any of the three 2-1 end point side convergent cut lines 31B Preparative and torn integrally as matches are opened reaches the right (end point) the outer edge of the left side and right edge heat seal portion 2 in the FIG. 3 '. As shown in FIG. 6 , the tear opening line is composed of a smooth curve and a straight line, and the opening can be made beautiful. In addition, the tear opening line formed by the first-3 lower end side cut line 30F and the second-3 center side straight cut line 31E causes a step, so that one side ( first surface ) and the other side ( The second surface ) can be easily picked and opened.

  Further, although illustration or detailed explanation is omitted, when the packaging bag 1 is opened in FIG. 3, if the region on the upper end side from the left side in FIG. As a result of tearing to the back side as a result of reaching the branch point of the 1st-3 lower end side cut line 30F bulging to the lower end side and the 1st-3 upper end side cut line 30E bulging to the upper end side of the opening line Other than being torn along the first-third upper end side cut line 30E from the side straight cut line 30C, it is torn and opened in the same manner as in the case of tearing to the near side.

FIG. 5 is a plan view of an essential part seen from the first surface side, schematically showing a third embodiment in which a V-shaped cutout is combined with a score line formed in the packaging bag according to the present invention. 3, the first starting point side converging cut line 30A (or the 2-2 starting point side converging cut line 31A) is used as an opening start means (a weakened portion that starts tearing). As shown in FIG. 5 , a V-shaped notch is combined with this to form an opening start means, and the first-first starting side convergent cut line 30A (or the second-second starting side converged cut line is shown. is formed by two existing in the outermost 31A) (two to sandwich the single central in FIG. 5) intersects the left (origin side) edge of the left side and right edge heat seal portion 2 ' Within the triangular area, or the 1-1st end point side convergent cut line 30B (or the 2-1 end point side) Crossing the most two existing outside (right side (end side in FIG. 2 that sandwich the single central in 5) is left side and right edge heat seal portion 2 ') the outer edge of the converging shape score line 31B) By providing a V-shaped cutout N1 in the triangular region formed by this, it is easier to visually open in that the opening start location can be specified even for visually impaired users It can be.

  Furthermore, the front end portion (V-shaped folding point) facing the inside of the V-shaped notch N1 is a first-first starting-side convergent cut line 30A (or a second-second starting-side converged cutting line 31A). If tearing starts from a V-shaped notch by approaching the convergence point of the first, the tear opening line is converged substantially linearly from the front end portion facing the inside of the V-shaped notch N1. Since it reaches the convergence point of the shape cut line 30A (or the 2-2 start point side convergent cut line 31A), it can be functionally easier to open.

In addition, although the V-shaped notch is shown in FIG. 5 , means for making the opening easier both visually and functionally is not limited to these. It can be V-shaped, U-shaped, turtle-shaped, etc., and it can be opened easily both visually and functionally by providing a group of scars with a number of minute punched holes. be able to. These are the missing part of the kind, cutlery desired one I-shape with respect to the left side and right edge heat seal part 2 of the packaging bag 1 which is heat-bonded ', of one U-shaped cutter A single V-shaped blade and a large number of small circular blades are pressed against each other to form a cut, and vacuum suction is applied to a part of the region (the region surrounded by the cut and the outer edge, the region surrounded by a circular cut). It is formed by removing with, for example. Furthermore, in addition to the cutout obtained by cutting out a part of the laminated body 10 constituting the packaging bag 1 as described above, a group of scars, short blades, etc., in which a small number of needles are inserted to form a large number of through holes are inserted. It may be a scar group in which a large number of cuts are formed. Scars group of this specification, the packaging bag 1 which is heat-bonded left side and right of the small diameter relative to the end edge heat seal portion 2 'needle assemblies and width short blade number of pressing a collection of For example, in the case of the description of the through hole, the surface on the side where the needle is pressed is a hole due to a kind of mortar-shaped dent and bottom breakage along the shape of the tip of the needle. The surface on the side from which the needle protrudes has a kind of barnacle-shaped convex part along the shape of the tip of the needle and a hole due to the break of the top part. It was n’t. However, a large number of through-holes and a large number of cuts are gathered to form a certain region that is easy to tear. In this respect, notches such as I-shaped, V-shaped, U-shaped, turtle-shaped, This is the same as the group of scars formed by forming a number of punched holes, and these can be collectively referred to as a tear initiation region. Incidentally, scar was formed a large number of through-holes crowded stabbed like small diameter needle groups, short for scar group forming a plurality of cuts crowded stabbed like cutting tool, heat bonded left side, the right side of the packaging bag 1 edge heat seal portion 2 'need not be partially removed in the left side and right edge heat seal part 2 of the packaging bag 1 which is heat-bonded' strength enough to facilitate tearing a part region of the Since it is sufficient to lower, it may be a scar group formed without penetrating the surface (one or both) of the laminate 10.

However, in any case, as shown in FIG. 5, the two outermost lines (1-1A starting point side converging cut line 30A (or 2-2 starting point side converging cut line 31A)) ( a triangular region in FIG. 5 two sandwiching the single center) is formed by intersecting the left (origin side) edge of the left side and right edge heat seal portion 2 ', or first- 1 end point converge shaped score line 30B (or 2-1 end point converge shaped score line 31B) 2 present in the outermost (2 sandwiching the single central in FIG. 5) is left side and the right side of It is necessary to be provided so as to fit within a triangular region formed by intersecting the outer edge on the right side (end point side) of the edge thermal bonding portion 2 ′, and is I-shaped, V-shaped, U-shaped, turtle shell In the case of a notch such as a shape, the front end portion facing the inside of these notches is a first-first starting-side converged cut line 30A (or 2-2 it is necessary to form so as to approach the convergence point of origin side converging shape score line 31A).

In FIG. 5 , V-shaped notches are provided on both the starting side (left side in the figure) and the ending point side (right side in the figure). However, considering left-handed users, both sides are provided. It is desirable to provide it, but it may be provided only on the starting point side (left side in the figure), and even if it is provided on both sides, the shape such as a notch is different between the starting point side and the ending point side (for example, V-shaped on the starting point side) There is no problem even if it is a notch, but it is an I-shaped notch on the end point side.

Further, the first-third upper end-side cut line 30E and the first-third lower-end side of FIG. 3 connecting the terminal ends of the first-second start-side linear cut line 30C and the first-second end-side linear cut line 30D . Although the cut line 30F is shown as a single cut line, it is not limited to a single line, and each line may be composed of a plurality of lines, or the number of lines may be different between the upper end side and the lower end side. Further, the interval between the score lines when a plurality of lines are provided is preferably 1 mm or less. In addition, it is designed so that the level | step difference in the tear opening part of the 1st cut line 3 and 2nd cut line 3 'may be 6 mm or more, and one side ( 1st surface ) of the laminated body which comprises the packaging bag 1, and the other ( 1st ) it is preferred from the viewpoint of capable of picking dihedral) in readily fingers.

Further, in FIGS. 3 and 5 , the first-first start-side convergent cut line 30A, the first-first end-point convergent cut line 30B, the second-first start-side convergent cut line 31A, and the second-first end side. a converging shape score line 31B, three of the outer edge of one of the left-side and right end heat-bonding unit 2 '(left) and the other Tan'en'netsu the left side and right respectively from the three of the outer edge (on the right) was prepared in three specifications converge to one point at a position which does not reach the inner edge of the bonding portion 2 'left side and right edge heat seal portion 2 proceeds in a direction toward the inner edge of the' single central a unplug it, the left side and right end heat seal portion 2 of the 'one (left side) of the two positions of the outer edge and the other (right) from each of the two positions of the outer edge left side and right edge heat seal portion 2 of the' It may be a two specifications converge to one point at a position that does not reach to proceed in a direction toward the inner edge to the inner edge of the left side and right edge heat seal portion 2 ', disconnect the central single In this case, variations of 4 and 6 specifications and even number of specifications are possible in addition to 2 specifications, and if you do not remove one from the center, 5 specifications and 7 specifications are available in addition to 3 specifications. are possible variations of the odd number of, until the inner edge of the Although the number at the starting point side and the end point may be different, in any of the variations, left side and right edge heat seal portion 2 ' There is no change in converging to one point at a position that does not reach.

By the way, in the said embodiment, the 1st 1-1 origin side convergent cut line 30A, the 1st-1 end point side convergent cut line 30B, the 2nd-1 origin side converged cut line 31A, the 2nd-1 end point side converged. The cut line 31B is formed from the outer edge to the inner edge of the left and right edge thermal bonding portions 2 ', but these cut lines 30A, 30B, 31A and 31B are not necessarily left and right edges. The outer edge of the edge thermal bonding portion 2 ′ may not be the starting point, and may be formed so as to extend toward the inner edge from the vicinity of the outer edge, that is, between the outer edge and the inner edge, as shown in FIG. Good.

Further, the first-first start-side convergent cut line 30A, the first-first end-point convergent cut line 30B, the second-first start-side converged cut line 31A, and the second-first end-side converged cut line 31B are These are formed so that they converge at one point on the inner edge side of the left and right edge thermal bonding portions 2 ', but they do not necessarily converge at one point, and are formed in a C shape. Also good. For example, as shown in FIG. 8 , among the first-first starting-side convergent cut lines 30A, a cut line 30A1 extending from the upper side toward the inner edge and a cut line 30A2 extending from the lower side toward the inner edge are on the inner edge side. It can also be configured to be close to each other without contact. When the cut line 30A1 extending from the upper side toward the inner edge and the cut line 30A2 extending from the lower side toward the inner edge contact each other, the cut lines 30A1 and 30A2 may intersect due to a dimensional error, whereby the tear line becomes the cut line. However, if it is formed in a square shape as described above, it is possible to prevent the cut lines 30A1 and 30A2 from intersecting. About such a configuration, the same applies to the (1-1) end-point-side convergent cut line (30B), (2-1) start-point-side convergent cut line (31A), and (2-1) end-point-side convergent cut line (31B). Can do. At this time, the starting point of the first-second starting side linear cut line 30C may be in a region between the end of the cut line 30A1 and the end of the cut line 30A2, and is slightly shifted in the left-right direction. Also good. The same applies to the 1-2 end point-side straight cut line 30D, the 2-2 start point side straight cut line 31C, and the 2-2 end point side straight cut line 31D.

Moreover, in the said embodiment, although the 1st-2 starting point side linear cut line 30C and the 1-2nd end point side linear cut line 30D are provided in the 1st cut line 3, the 1st cut line 3 is A configuration without these score lines 30C and 30D may be used. For example, as shown in FIG. 9 , between the first-first start-side converged cut line 30A and the first-first end-side converged cut line 30B, 3 lower cut line 30F can be provided. At this time, as shown in FIG. 9 , the gap S1 between the first-first start-side convergent cut line 30A and the first-third cut lines 30E, 30F, and the first-first end-side converged cut line 30B A gap S2 may be provided between the first and third cut lines 30E and 30F, or such a gap is not provided, and the first and first starting-side converged cut lines 30A and the first and third cut lines 30E, While connecting 30F, it is also possible to connect the first-first end-side convergent cut line 30B and the first-third cut lines 30E, 30F. Even if it does in this way, the same effect as when the 1-2nd starting point side straight cut line 30C and the 1-2 end point side straight cut line 30D are provided can be acquired. Further, the second cut line 3 ′ is also constituted by only the second-third central straight cut line 31E without the 2-2 start-point-side straight cut line 31C and the 2-2 end-point-side straight cut line 31D. be able to.

7 to 9 can be appropriately combined with at least one of the embodiments shown in FIGS . 3 and 5 .

  In addition, the four-side seal type packaging bag has been described so far, but in short, a packaging bag having a configuration in which at least one edge thermal bonding portion is formed at the opposed position of a pair of opposed edges, for example, three-way It may be a seal type or a standing type packaging bag. Further, it goes without saying that all the categories not departing from the gist of the present invention are included in the present invention.

  Next, the laminated body 10 which comprises the packaging bag 1 is demonstrated. As the outer layer of the laminated body 10, since it becomes a basic material constituting the packaging bag 1, a synthetic resin film having excellent properties in mechanical, physical, chemical and the like can be used. Polyamide-based and polypropylene-based resins can be used. Moreover, as a film using these resin, the stretched film extended | stretched to the biaxial direction is suitable. This is because the outer layer 11 is usually subjected to printing and printability is required. The thickness of the film constituting the outer layer 11 may be determined in consideration of cost and the like, but is generally about 12 to 25 μm.

  Moreover, as an aluminum foil used for the intermediate | middle layer 12 of the laminated body 10, the annealed aluminum foil is suitable, and the thickness is about 6-15 micrometers.

  Further, the inner layer 13 of the laminate 10 may be a layer formed from a heat-adhesive resin that can be melted by heat and welded to each other, and is appropriately selected depending on the physical properties required for the packaging bag 1. For example, low density polyethylene, medium density polyethylene, high density polyethylene, linear (linear) low density polyethylene, polypropylene, ethylene-α olefin copolymer, ethylene-propylene copolymer , Ethylene-vinyl acetate copolymer, ionomer resin, acid copolymer of ethylene and acrylic acid, ester copolymer of ethylene and acrylic acid ester, and the like. Further, the thickness of the film constituting the inner layer 13 may be determined in consideration of required physical properties and costs.

  The laminate 10 has physical properties required when forming a packaging bag between the intermediate layer 12 and the inner layer 13, such as mechanical toughness, bending resistance, puncture resistance, impact resistance, cold resistance, In order to provide physical properties such as heat resistance and chemical resistance, for example, a strength reinforcing layer made of a film such as polyester, polyamide, polyethylene, polypropylene, polyolefin such as ethylene-propylene copolymer, or a resin layer can be provided. The strength reinforcing layer may be a combination of the film and the resin layer, and the thickness may be determined in consideration of required physical properties and costs.

  Moreover, as a lamination | stacking method of each layer of the laminated body 10 which comprises the packaging bag 1 of this invention, what is necessary is just to laminate | stack suitably using well-known lamination methods, such as a sandwich lamination method and a dry lamination method. The first cut line 3 and the second cut line 3 ′ may be physically formed using a rotary die cutter, but preferably after the laminate 10 is formed using a pulsed laser or the like. Formed on the outer layer 11. As a kind of laser used for this, a carbon dioxide laser, a YAG laser, a semiconductor laser, an argon ion laser, etc. are possible, and it is not particularly limited.

DESCRIPTION OF SYMBOLS 1 Packaging bag 2 Edge thermal bonding part 2 'Left / right edge thermal bonding part 2 "Upper / lower edge thermal bonding part 3 1st cut line 3' 2nd cut line 10 Laminated body 11 Outer layer 12 Intermediate layer 13 Inner layer 20 Synthetic resin biting tool 21 Convex male member 22 Concave female member 30A 1-1 start point converging cut line 30B 1-1 end point converging cut line 30C 1-2 starting point side straight cut Line 30D First-second end-side straight cut line 30E, 30G First-third upper-end cut line 30F, 30H First-third lower-end cut line 31A 2-1 Start-point-side convergent cut line 31B 2-1 End side convergent cut line 31C 2-2 Start point side straight cut line 31D 2-2 End point side straight cut line 31E 2-3 Central side straight cut line α Cut line forming region β Articulating device forming region N1 V-shaped notch N2 U-shaped notch

Claims (8)

It is a packaging bag composed of a laminate having at least an outer layer, an intermediate layer made of aluminum, and an inner layer made of a heat-adhesive resin, and arranged so that the inner layer of the laminate is on the inside,
The packaging bag includes a first surface and a second surface of the same shape facing each other in the thickness direction,
The thickness direction in the packaging bag is defined as the first surface side and the second surface side with respect to the first surface and the second surface,
The upper, lower, left and right directions in the packaging bag are defined as an upper side, a lower side, a left side, and a right side, based on the case where the packaging bag is viewed in plan from the first surface side,
The first surface and the second surface are joined at the left edge thermal bonding portion and the right edge thermal bonding portion,
An opening means is provided from the left edge thermal bonding portion to the right edge thermal bonding portion,
The unsealing means includes a first surface side cut line formed in the outer layer of the first surface, and a second surface side cut line formed in the outer layer of the second surface,
The first side cut line is
The first surface side middle side upper swelling curve portion having an inflection point on the upper side connecting the left end and the right end at the middle position in the left-right direction,
The first surface side middle side lower swelling curve portion having an inflection point on the lower side connecting the left end and the right end shared with the first surface side middle side upper swelling curve portion at the middle position in the left-right direction,
The second surface-side score line has a horizontal line portion on the second surface side that proceeds in the left-right direction connecting the left end and the right end at a middle position in the left-right direction,
The cut surface of the first surface formed by one of the first surface side middle side upper bulge curve portion and the first surface side middle side lower bulge curve portion when the opening means tears open in the left-right direction. The outer surface of the second surface and the outer surface of the cut surface of the second surface formed by the horizontal line portion on the second surface side side, and has a function of forming a step in the tear opening,
The second surface side cut line is
The left edge thermal bonding portion extends leftward starting from a position higher than the vertical position of the horizontal line portion on the second surface side inside, and leftward from the inner edge of the left edge thermal bonding portion. It has a diagonal line part on the left side on the left side of the second surface with the position retracted as the end point,
In the left edge thermal bonding portion, it extends in the upper right direction starting from a position lower than the vertical direction position of the horizontal line portion on the second surface side inside, to the left side from the inner edge of the left edge thermal bonding portion It has an upper right diagonal line part on the left side of the second surface with the retracted position as the end point,
In the right edge thermal bonding portion, the lower edge is extended from the position higher than the vertical position of the horizontal line portion on the second surface side in the middle to the right from the inner edge of the right edge thermal bonding portion. Provided with a left-down diagonal line portion on the right side of the second surface with the retracted position as the end point,
In the right edge thermal bonding part, it extends in the upper left direction starting from a position lower than the vertical direction position of the horizontal line part on the second surface side inside, and is on the right side from the inner edge of the right edge thermal bonding part. It has a left upper diagonal line part on the right side of the second surface with the retracted position as the end point,
Both the first surface and the second surface are packaging bags in which the layers arranged on the inner layer side from the intermediate layer are all composed of an unstretched film and / or an unstretched resin layer. The second surface side cut line is
A left side horizontal line portion that proceeds in the left direction from the left end of the horizontal line portion on the second side on the left side in the left-right direction,
A right side horizontal line portion that proceeds in the right direction from the right end of the horizontal side portion on the second surface side at the right side position in the left-right direction,
The horizontal line part on the left side of the second surface side, the horizontal line part on the second side of the second surface side, and the horizontal line part on the right side of the second surface side are arranged in the same vertical position so as to form the same straight line, The packaging bag according to claim 1 . The second surface side cut line is
A horizontal line portion on the left side of the second surface side that proceeds from the left end of the horizontal line portion on the left side of the second surface side to the left side in the left and right direction and reaches the outer edge of the left edge thermal bonding portion. Prepared,
A horizontal line part on the right side of the second surface side that proceeds from the right end of the horizontal line part on the right side of the second surface side to the right side in the right and left direction and reaches the outer edge of the right edge thermal bonding part. Prepared,
The horizontal line portion on the left side of the second surface side, the horizontal line portion on the left side of the second surface side, the horizontal line portion on the middle side of the second surface side, the horizontal line portion on the right side of the second surface side, and the horizontal line portion on the right side of the second surface side. The packaging bags according to claim 2, which are arranged in the same vertical position so as to form the same straight line. The first side cut line is
In the left edge thermal bonding portion, the left side of the first surface side middle side of the upper bulge curve portion and the lower bulge curve portion is extended to the lower right direction starting from a position higher than the vertical position of the left end in common. The first surface side left side diagonal line portion with the end point being the position retracted to the left side from the inner edge of the edge thermal bonding part,
The left edge thermal bonding portion extends in the upper right direction starting from a position lower than the vertical position of the left end in common with the upper bulge curve portion and the lower bulge curve portion of the first surface side middle side, and A diagonal line part on the upper right side on the left side of the first surface with the end point being the position retracted to the left side from the inner edge of the edge thermal bonding part,
In the right edge thermal bonding portion, the first surface side middle side upper bulge curve portion and the lower bulge curve portion are extended in the lower left direction starting from a position higher than the vertical position of the right end common to the right side edge The first surface side right-hand side diagonal line part with the position retreated to the right side from the inner edge of the edge thermal bonding part as the end point,
In the right edge thermal bonding portion, the right side edge of the first surface side is extended in the upper left direction starting from a position that is lower than the vertical position of the right end common to the upper bulge curve portion and the lower bulge curve portion on the right side, and The packaging bag as described in any one of Claim 1 thru | or 3 provided with the upper left diagonal line part of the 1st surface side right side which makes the end point the position retreated to the right side from the inner edge of an edge thermal-bonding part. The first side cut line is
The left side in the left-right direction has a horizontal line portion on the left side of the first surface side that proceeds in the left direction from the left end common to the upper bulge curve portion and the lower bulge curve portion of the first surface side middle side,
And a common single first surface side right horizontal portion of traveling from the right edge to the right of the top blister curve segments and round-faced curved portion of the first surface side of the side at the position of the right side in the lateral direction, wherein The packaging bag as described in any one of Claims 1 thru | or 4 . The first side cut line is
One horizontal line portion on the left side of the first surface that proceeds leftward from the left end of the horizontal line portion on the left side of the first surface to the left side position in the left-right direction and reaches the outer edge of the left edge thermal bonding portion Prepared,
A single horizontal line portion on the right side of the first surface that proceeds from the right end of the horizontal line portion on the right side of the first surface to the right side in the left-right direction and reaches the outer edge of the right edge thermal bonding portion. Prepared,
The horizontal line part on the left side of the first surface side and the horizontal line part on the left side of the first surface side are arranged in the same vertical position so as to form the same straight line,
Wherein the first surface side right side of the horizontal line portion and the first surface side right horizontal portions are arranged similarly to the position in the vertical direction so as to form the same straight line, packaging bag of claim 5 . The opening means is
At a position in the left-right direction that is retreated to the left side from the inner edge of the left edge thermal bonding portion from the outer edge of the left edge thermal bonding portion,
In a vertical position with a width that sandwiches the vertical position of the horizontal line portion on the second surface side middle side or the vertical position of the horizontal line portion on the second surface side middle side,
Comprising left-side opening start means that are I-notches, notches or scars;
At the position in the left-right direction that has receded from the outer edge of the right edge thermal bonding portion to the right side from the inner edge of the right edge thermal bonding portion,
In a vertical position with a width that sandwiches the vertical position of the horizontal line portion on the second surface side middle side or the vertical position of the horizontal line portion on the second surface side middle side,
The packaging bag as described in any one of Claims 1 thru | or 6 provided with the opening start means of the right side which is an I notch, a notch, or a scar group. A protruding male member and a female recess that mesh with each other at opposite positions below the opening means in the inner layer of the first surface and the inner layer of the second surface constituting the inner surface of the packaging bag. A synthetic resin bite made of members is provided,
The packaging bag as described in any one of Claims 1 thru | or 7 provided with the reseal function by biting the said male member and the said female member.