Abstract: A tape includes, in a cross-sectional shape: a first and a second portion which are configured to be at least partially in opposition. The first portion includes: thick portions provided in corresponding one of a first and a third region, out of the first, a second, and the third region in a width direction of the tape; a first and a second thin portion provided at respective both end portions, in the width direction, of the second region positioned between the first and the third region; and at least one intermediate portion provided between the first and the second thin portion. The second portion includes: thick portions provided in corresponding one of the first and the third region and extending beyond end portions, in the width direction, of the second region; and at least one third thin portion provided in the second region and opposed to the intermediate portion.

Abstract: A bag includes a bag body defining a housing space, an elongated member provided on a first face portion of two face portions forming the bag body, and a tab. The elongated member includes an elongated tearing guide piece, a belt-shaped base provided between a second face portion and the tearing guide piece along a longitudinal direction of the tearing guide piece. The tab has an outer edge defined in the first face portion by a cutting line penetrating through the belt-shaped base and the first face portion. A protector covering the tab is provided on a side of the first face portion provided with the belt-shaped base.

Abstract: A tape includes, in a cross-sectional shape: a first and a second portion which are configured to be at least partially in opposition. The first portion includes: thick portions provided in corresponding one of a first and a third region, out of the first, a second, and the third region in a width direction of the tape; a first and a second thin portion provided at respective both end portions, in the width direction, of the second region positioned between the first and the third region; and at least one intermediate portion provided between the first and the second thin portion. The second portion includes: thick portions provided in corresponding one of the first and the third region and extending beyond end portions, in the width direction, of the second region; and at least one third thin portion provided in the second region and opposed to the intermediate portion.

Abstract: A bag includes a bag body defining a housing space, an elongated member provided on a first face portion of two face portions forming the bag body, and a tab. The elongated member includes an elongated tearing guide piece, a belt-shaped base provided between a second face portion and the tearing guide piece along a longitudinal direction of the tearing guide piece. The tab has an outer edge defined in the first face portion by a cutting line penetrating through the belt-shaped base and the first face portion. A protector covering the tab is provided on a side of the first face portion provided with the belt-shaped base.

Abstract: There is provided a device for blanking and bonding a film piece, the device including: a film-piece blanking mechanism including a first member having a first edge formed along an inner periphery of the first member, and a second member capable of moving relative to the first member and having a second edge formed along an outer periphery of the second member, the second edge having a profile corresponding to a profile of the first edge; and a bonding unit capable of moving inside the second member independently of the second member in the same direction as the second member, and capable of bonding, by pressing, the film piece blanked by the blanking mechanism to a resin member held facing the film piece.

Abstract: Provided is a zipper tape including: a first member including a first base strip and a first engagement portion, the first engagement portion protruding from the first base strip; and a second member including a second base strip and a second engagement portion, the second engagement portion protruding from the second base strip and being engageable with the first engagement portion. A minimum gap between the first member and the second member is less than or equal to 1.1 mm, the minimum gap being based on when the first base strip and the second base strip are opposed to each other and the first engagement portion and the second engagement portion are engaged with each other.

Abstract: Provided is a film processing device including: a first cutting blade and a first receiver base that are opposed to each other with a film including at least two layers interposed therebetween, and are configured to move toward and away from each other; and a first distance adjuster that adjusts, without being in contact with the film, a minimum distance between the first cutting blade and the first receiver base.

Abstract: A tape includes, in a cross-sectional shape: a first and a second portion which are configured to be at least partially in opposition. The first portion includes: thick portions provided in corresponding one of a first and a third region, out of the first, a second, and the third region in a width direction of the tape; a first and a second thin portion provided at respective both end portions, in the width direction, of the second region positioned between the first and the third region; and at least one intermediate portion provided between the first and the second thin portion. The second portion includes: thick portions provided in corresponding one of the first and the third region and extending beyond end portions, in the width direction, of the second region; and at least one third thin portion provided in the second region and opposed to the intermediate portion.

Abstract: There is provided a zipper tape bonded to a bag body having a first surface and a second surface and including: a zipper tape body including a first base strip bonded to the first surface, a second base strip bonded to the first surface with a bonding portion, and engagement portions being mutually engageable and projecting from the first and second base strips, respectively; and a cutting strip provided in a region where the second base strip faces the first surface and does not face the first base strip. The zipper tape body is formed of a resin composition whose main component is a polyolefin resin. The cutting strip is formed of a resin composition whose main component is a polyolefin resin and includes a cutting strip body and a peelable layer layered on the cutting strip body and formed of a resin composition having peelability to a polyolefin resin.

Abstract: A light-absorbing layer and a bonding layer are layered on a first side of each of a belt-shaped male base portion integrated with a male portion and a female base portion integrated with a female portion on a side of the male and female base portions opposite the first side. The light-absorbing layer contains a light-absorbing material having a wavelength absorption range from 800 nm to 1200 nm to absorb a laser beam of the range. The bonding layer contains a low-melting-point resin in a form of a metallocene linear low-density polyethylene having a melting point ranging from 60 degrees C. to 120 degrees C. When the zipper tape is bonded to the base film, the laser beam is applied to heat the light-absorbing layer to melt the bonding layer. The melted bonding layer is pressure-bonded to the base film. The base film can be bonded without causing thermal degradation.

Abstract: A bag body includes a bag main body and a zipper tape heat-sealed to an inner surface of the bag main body. The zipper tape comprises a pair of belt-shaped bases and two pairs of mating portions configured to be mated with each other. One of the belt-shaped bases is attached to the bag main body only at a widthwise side near an opening. First one of the mating portions includes a pair of hooks provided to each of the belt-shaped bases and respectively having nails at ends of the hooks that are configured to be meshed with each other. The second mating portion includes a concave female mating portion provided to the belt-shaped base and a male mating portion having the same shape as the hook and configured to disengageably mate with the female mating portion. The nail of the hook protrudes toward the opening.

Abstract: A bag includes a bag body defining a housing space, an elongated member provided on a first face portion of two face portions forming the bag body, and a tab. The elongated member includes an elongated tearing guide piece, a belt-shaped base provided between a second face portion and the tearing guide piece along a longitudinal direction of the tearing guide piece. The tab has an outer edge defined in the first face portion by a cutting line penetrating through the belt-shaped base and the first face portion. A protector covering the tab is provided on a side of the first face portion provided with the belt-shaped base.

Abstract: A bag includes: a film folded to define a containable space and a first area and a second area both facing the containable space; an elongated tearing guide piece directly or indirectly bonded to the first area; an elongated belt-shaped base disposed between the tearing guide piece and the second area and along the tearing guide piece; a tab defined by a cut portion penetrating through the first area of the film, the tearing guide piece and the belt-shaped base; and a surrounding seal area intersecting the tearing guide piece in a width direction, the surrounding seal area bonding the first area and the second area to define an area surrounding the tab.

Abstract: A zipper-tape bag includes a bag body and tabs each provided to an outside of the bag body at a position closer to a housing space than a zipper tape. The bag body can be easily unsealed upon disengagement of a male portion and a female portion simply by pinching and pulling the tabs in mutually separating directions. The tabs are spaced away from an opening, which is formed after a top seal is cut off, in order that the content can be taken out or put in. The content can thus be put in and taken out without problems such as adhesion of the content to the hand and contamination of the content by touching the content by hand.

Abstract: A zipper-tape bag includes a bag body and tabs each provided to an outside of the bag body at a position closer to a housing space than a zipper tape. The bag body can be easily unsealed upon disengagement of a male portion and a female portion simply by pinching and pulling the tabs in mutually separating directions. The tabs are spaced away from an opening, which is formed after a top seal is cut off, in order that the content can be taken out or put in. The content can thus be put in and taken out without problems such as adhesion of the content to the hand and contamination of the content by touching the content by hand.

Abstract: A light-absorbing layer and a bonding layer are layered on a first side of each of a belt-shaped male base portion integrated with a male portion and a female base portion integrated with a female portion on a side of the male and female base portions opposite the first side. The light-absorbing layer contains a light-absorbing material having a wavelength absorption range from 800 nm to 1200 nm to absorb a laser beam of the range. The bonding layer contains a low-melting-point resin in a form of a metallocene linear low-density polyethylene having a melting point ranging from 60 degrees C. to 120 degrees C. When the zipper tape is bonded to the base film, the laser beam is applied to heat the light-absorbing layer to melt the bonding layer. The melted bonding layer is pressure-bonded to the base film. The base film can be bonded without causing thermal degradation.

Abstract: A bag body includes a bag main body and a zipper tape heat-sealed to an inner surface of the bag main body. The zipper tape comprises a pair of belt-shaped bases and two pairs of mating portions configured to be mated with each other. One of the belt-shaped bases is attached to the bag main body only at a widthwise side near an opening. First one of the mating portions includes a pair of hooks provided to each of the belt-shaped bases and respectively having nails at ends of the hooks that are configured to be meshed with each other. The second mating portion includes a concave female mating portion provided to the belt-shaped base and a male mating portion having the same shape as the hook and configured to disengageably mate with the female mating portion. The nail of the hook protrudes toward the opening.

Abstract: A connecting portion is provided between a first thick portion and a second thick portion in a cutting portion. Further, a thinnest portion on which a stress can be concentrated is provided to the connecting portion. Accordingly, when tearing a base material film of a bag body, the connecting portion can guide a cutting line toward the thinnest portion to position the cutting line in the thinnest portion, so that the bag body can be easily opened.

Abstract: A shape-retaining tape and a zipper tape that can be produced only by extrusion molding without using a stretching process, and can retain a prescribed shape by being attached to a package bag formed of a resin film or the like, and a package bag in which these tapes are attached to an opening part. In a zipper tape having an engagement part in which a protruded male part and a recessed female part are engaged with each other, shape-retaining parts formed of a resin composition obtained by adding 0.1 to 40 parts by weight of an inorganic filler relative to 100 parts by weight of a high-density polyethylene resin are provided along the tape-length direction of a male-side belt-like base part and a female-side belt-like base part.

Abstract: A heat sealing method of a zipper tape is for heat sealing the zipper tape in a direction perpendicular to a feeding direction of a film. The heat sealing method includes: inserting the zipper tape between the film and a circumference of a roller on which the film is wound; and heat sealing the zipper tape to the film with a seal bar following a rotation of the roller in a continuous manner, while the zipper tape is interposed between the circumference of the roller and the film.