Abstract: The invention relates to 2 closure kit comprising two extra elements (200, 250) which can successively engaged and separated, and a cursor (100) comprising a base (110), two lateral side plates (120, 130), a central wall (140) and a sole (142) linked to the central wall (140), characterized in that at least one of the two elements (200, 250) comprises a structure (210, 260) forming a stop for the sole (242) in order to prevent doe cursor (100) from retreating as a result of the effect of a stair tending towards tearing.

Abstract: The present invention provides a bag having closure strips and a slider, and including a marker strip for preventing manipulation of the slider prior to the marker strip being ruptured, wherein said marker strip is formed integrally with a wall of the bag and includes a single-use adhesive zone designed to fix it in its in-use position on the opposite wall of the bag.

Abstract: A method of automatically forming bags fitted with complementary closure strips secured to distinct support webs and associated with an actuating slide, in which method: at least one film suitable for forming the walls of the bags is supplied continuously; a closure assembly comprising complementary closure strips secured to distinct lateral support webs which extend beyond the closure strips is supplied continuously, the strips being associated with slides for actuating the closure strips, which slides are distributed along the length of the closure assembly as supplied; the closure assembly formed in this way is fixed via the external lateral support webs to the film forming the wall of the bags; the method being characterized in that: a loop is made in the continuously supplied film; and inside the concave portion of the loop the closure assembly is fixed to the surface of the film that corresponds to the outside surface of the bags.

Abstract: An apparatus for forming reclosable bags, wherein said bags are formed from a continuously film (12) fitted with at least one closure tape (60), wherein the apparatus comprises a set of heat-sealed jaws (30) provided transversely relative to the travel direction of the film (12), at least one sensor (100) that if the tape (60) is present or not on the film in a predetermined position relative to the heat-sealed jaws, and means suitable to reposition correctly the film in regard of the heat-sealed jaws when the sensor detects a default in the position of the tape, so as to eliminate drift due to the elasticity of the film.

Abstract: A set of at least three consecutive bags in a succession, each bag having two closure strips and a cursor situated at a respective distance from one end of the strips, the strips and the cursor being identical between the bags. Between the bags in each pair of adjacent bags, the distances are different.

Abstract: A method of manufacturing a string of bags provided with transverse closure strips by sequentially placing closure system segments transversely on a film for forming the walls of the bag, with each segment having two complementary closure strips. The support webs are fixed respectively to the inside faces of the two walls of the bag while taking care to provide sequential transverse openings in the film so as to give access to between the two strips. A machine for implementing the method and strings of bags obtained thereby are also included.

Abstract: The present invention relates to a method of manufacturing bags including complementary closure strips, the method comprising the steps consisting in: separately feeding a film and closure strips having sequential thin zones at the same pitch as the bags; and fixing the strips to the film; the method further comprising the steps consisting in: detecting loss of synchronization between the closure strips and means acting in the assembly station; and in the event of loss of synchronization being detected, modifying the size of the sequential thin zones provided in the strips so as to reestablish synchronization. The present invention also relates to a machine for implementing the method, and to the bags obtained thereby.

Abstract: The present invention provides a bag having closure strips and a slider, and including a marker strip for preventing manipulation of the slider prior to the marker strip being ruptured, wherein said marker strip is formed integrally with a wall of the bag and includes a single-use adhesive zone designed to fix it in its in-use position on the opposite wall of the bag.

Abstract: A method of automatically forming bags fitted with complementary closure strips secured to distinct support webs and associated with an actuating slide, in which method: at least one film suitable for forming the walls of the bags is supplied continuously; a closure assembly comprising complementary closure strips secured to distinct lateral support webs which extend beyond the closure strips is supplied continuously, the strips being associated with slides for actuating the closure strips, which slides are distributed along the length of the closure assembly as supplied; the closure assembly formed in this way is fixed via the external lateral support webs to the film forming the wall of the bags; the method being characterized in that: a loop is made in the continuously supplied film; and inside the concave portion of the loop the closure assembly is fixed to the surface of the film that corresponds to the outside surface of the bags.

Abstract: A bag equipped with matching closure profiles. The bag is made from a supply of at least a film for forming the bag walls. A supply is unwound of closure assemblies having a W-shaped support sheet, constituting an inner U-shaped tear band provided on its inner surfaces opposite respectively matching closure profiles. External side webs extend beyond the closure profiles and the U-shaped inner band. The closure assembly is further pre-equipped with a series of sliders actuating the closure profiles distributed over the length of the unwinding closure assembly. The resulting closure assembly is fixed by the external side support webs on the film forming the bag wall.

Abstract: A closure strip and a cursor of a bag. The bag including an indicator tape situated on the path of the cursor and designed to be ruptured when the bag is opened for the first time.

Abstract: A machine for forming reclosable packaging includes a removable forming neck which can be replaced with different forming necks of various diameters. The machine has a mechanism (40) for attaching closure strips (P) onto a film that have lengths up to half the circumference of the smallest forming neck (10), and a mechanism (60)″ that makes the transverse welds (61, 62) along a length equal to at least equal half the circumference of the largest forming neck (10).

Abstract: A method of manufacturing packages based on a film (10) and presenting at least one peelable zone, the method being characterized by the fact that it comprises the steps which consist in feeding segments (20) of strip or tape of peelable material on a film (10) that is to form the wall of the package, in flattening at least the ends of each segment (20), and in fixing each segment (20) of peelable material to the film (10). The invention also provides a machine for implementing the method, and packages obtained thereby.

Abstract: The present invention relates to a method of automatically manufacturing bags fitted with complementary closure strips associated with an actuating cursor, in which at least one film adapted to form the bag walls is fed continuously, closure assemblies comprising complementary closure strips associated with an actuating cursor are provided, and each closure assembly made in this way is fixed on the wall-forming film, wherein the closure assemblies are brought onto the film transversely to the travel direction of said film, and the length of each closure assembly is greater than the width of the bag, such that, while it is being brought into position, the actuating cursor is located in the vicinity of one end of the closure assembly beyond the edge of the film.

Abstract: A method for automatically making bags equipped with matching closure profiles comprising the steps of: unwinding a supply of at least a film for forming the bag walls; unwinding a supply of closure assembly comprising a W-shaped support sheet, constituting an inner U-shaped tear band provided on its inner surface opposite respectively the matching closure profiles, and the external lateral webs extending beyond the closure profiles and the U-shaped inner band, the closure assembly being further pre-equipped with a series of sliders actuating the closure profiles distributed over the length of the unwinding closure assembly; and fixing the resulting closure assembly via the external lateral webs on the film forming the bag walls.

Abstract: A method for automatically making bags equipped with matching closure profiles, including unwinding a supply of at least a film for forming the bag walls and unwinding a supply of closure assemblies having a W-shaped support sheet, constituting an inner U-shaped tear band provided on its inner surfaces opposite respectively matching closure profiles, and external side webs extending beyond the closure profiles and the U-shaped inner band. The closure assembly being further pre-equipped with a series of sliders actuating the closure profiles distributed over the length of the unwinding closure assembly, and fixing the resulting closure assembly, by the external side support webs on the film forming the bag wall.

Abstract: A method for automatically making bags equipped with matching closure profiles, including unwinding a supply of at least a film for forming the bag walls and unwinding a supply of closure assemblies having a W-shaped support sheet, constituting an inner U-shaped tear band provided on its inner surfaces opposite respectively matching closure profiles, and external side webs extending beyond the closure profiles and the U-shaped inner band. The closure assembly being further pre-equipped with a series of sliders actuating the closure profiles distributed over the length of the unwinding closure assembly, and fixing the resulting closure assembly, by the external side support webs on the film forming the bag wall.

Abstract: The present invention relates to a method of manufacturing bags including complementary closure strips, the method comprising the steps consisting in: separately feeding a film and closure strips having sequential thin zones at the same pitch as the bags; and fixing the strips to the film; the method further comprising the steps consisting in: detecting loss of synchronization between the closure strips and means acting in the assembly station; and in the event of loss of synchronization being detected, modifying the size of the sequential thin zones provided in the strips so as to reestablish synchronization. The present invention also relates to a machine for implementing the method, and to the bags obtained thereby.

Abstract: The invention relates to a method of manufacturing packaging bags with side gussets comprising steps which consist in forming cutouts in the sheet of the bag, placing closure means (70) between two associated cutouts, forming side gussets, bringing the edges (14, 16) of the sheet together, wherein the cutouts open onto a transverse generatrix (18) of the sheet which corresponds to the top of a respective bag.

Abstract: The present invention relates to a closure strip and a cursor, the bag including an indicator tape situated on the path of the cursor and designed to be ruptured when the bag is opened for the first time.