Abstract: A packing bag to store a stored article Z with tight seal by a welded sheet material 1 of resin in which a separation-prepared line portion 5, separable by predetermined tensile force F by human hands to take out the stored article Z, is provided along an opening-prepared side portion 10, the sheet material 1 has a layered unit construction in which first and second welding resin layers 61A and 61B are disposed on both sides, and a barrier layer 60 is disposed on a middle position, the separation-prepared line portion 5 is composed of a half-cut first laser-worked groove 7A concaved on the first welding resin layer 61A and a half-cut second laser-worked groove 7B concaved on the second welding resin layer 61B, and, the first and second laser-worked grooves 7A and 7B are formed barely damaging the barrier layer 60.

Abstract: In a packing bag to store a stored article Z with tight seal by a welded sheet material 1, a separation-prepared line portion 5, separable by predetermined tensile force by human hands, is provided, and, the separation-prepared line portion 5 is composed of half-cut laser-worked grooves 7 disposed parallel with a small interval and concaved on an inner face 1a and an outer face 1b.

Abstract: A packing bag to store a stored article Z with tight seal by a welded sheet material 1 of resin in which a separation-prepared line portion 5, separable by predetermined tensile force F by human hands to take out the stored article Z, is provided along an opening-prepared side portion 10, the sheet material 1 has a layered unit construction in which first and second welding resin layers 61A and 61B are disposed on both sides, and a barrier layer is disposed on a middle position, the separation-prepared line portion 5 is composed of a half-cut first laser-worked groove 7A concaved on the first welding resin layer 61A and a half-cut second laser-worked groove 7B concaved on the second welding resin layer 61B, and, the first and second laser-worked grooves 7A and 7B are formed barely damaging the barrier layer 60.

Abstract: In a packing bag to store a stored article Z with tight seal by a welded sheet material 1, a separation-prepared line portion 5, separable by predetermined tensile force by human hands, is provided, and, the separation-prepared line portion 5 is composed of half-cut laser-worked grooves 7 disposed parallel with a small interval and concaved on an inner face 1a and an outer face 1b.

Abstract: A slider structure, provided with a first member 1 and a second member 2, in which a first insertion groove 31 inclined forward and upward, and a second insertion groove 32 inclined forward and downward, are formed by the first member 1 and the second member 2, and, an opening width dimension S1 of the first insertion groove 31 and an opening width dimension S2 of the second insertion groove 32 are reduced when the first member 1 and the second member 2 are relatively moved and mutually come close to conduct stopping in left-and-right direction W of a fastener male-female portion Fa in the first insertion groove 31 and another male-female portion Fb in the second insertion groove 32.

Abstract: To provide a packing bag, with which waste refuse is not generated, used in good appearance after opening, the bag is composed of a rectangular sheet piece 1 of synthetic resin, the sheet piece 1 is folded on two convex folded line portions 18 and a concave folded line portion to form a folded portion 10 serially having a first sheet layer 11, a second sheet layer 12, a third sheet layer 13, and a fourth sheet layer 14 on an end edge portion 1A to form M-shape in longitudinal cross section; the first sheet layer 1 and the second sheet layer 2 are fused, and the third sheet layer 3 and the fourth sheet layer 4 are fused; a separation-prepared line portion 5 to separate the second sheet layer 2 and the third sheet layer is formed along the concave folded line portion 19 between the second sheet layer 2 and the third sheet layer 3; a fastener 4 to mutually seal the second sheet layer 2 and the third sheet layer 3 is provided; and the separation-prepared line portion 5 is disposed on an inner side of the bag to t

Abstract: To provide a slider structure, easily attached to a bag body and with which a fastener disposed on an opening to open a sheet middle portion on an upper side of the bag body can be opened and closed, a first member 1 having a gathering portion 19, to press a fastener male-female portion Fa disposed on a first sheet portion 91 and another fastener male-female portion Fb disposed on a second sheet portion 92 mutually in up-and-down direction T to be hitched, on a rear end portion 1b,and a second member 2 attached to the first member 1 as to move for a predetermined back-and-forth dimension Z in back-and-forth direction N, are provided.

Abstract: The object is to provide a slider for fastener fittable to a fastener included in a sealed reclosable bag after the bag is broken and opened, and also easy to fit to as well as remove from a fastener of another bag. The slider includes to first slider member (2) provided with a projection (2A) for disengaging a male engageable member from a female engageable member both included in a fastener (F) and a second slider member (3) provided with a narrowed portion (3C) for fitting the male and female engageable members to each other. The projection (2A) of the first slider member (2) is adapted to be inserted forcibly from outside between the male and female engageable members in an engaged state, and the narrowed portion (3C) in the second slider member (3) is adapted to engage the male and female engageable members with each other. Two protrusions (2E) each provided with a boss (2I) are provided on the first slider member (2) in a manner extending toward the second slider member (3).

Abstract: [Object] To provide a slider for fastener fittable to a fastener after a sealed packaging bag including the fastener is broken and opened, and also easy to fit to as well as remove from a fastener of another bag. [Solution] The slider includes a first slider member 2 provided with a projection 2A for disengaging a male engageable member from a female engageable member both included in a fastener F and a second slider member 3 provided with a narrowed portion 3C for engaging the male and female engageable members to each other. The projection 2A of the first slider member 2 is adapted to be inserted forcibly from outside between the male and female engageable members in an engaged state, and the narrowed portion 3C in the second slider member 3 is adapted to fit the male and female engageable members in a disengaged state with each other and hold them. Two protrusions 2E each provided with a boss 2I are provided on the first slider member 2 in a manner extending toward the second engageable member 3.