BELT-LIKE MEMBER, BAG BODY, AND MANUFACTURING METHOD OF BAG BODY

• Main Author: TODAKA TAKUMI
• Format: Patent
• Language: English; Japanese
• Published: 30.09.2021
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE; HABERDASHERY; HUMAN NECESSITIES; JEWELLERY; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a bag body with a zipper tape capable of excellently bonding a zipper tape using a laser beam.SOLUTION: A male side bonding layer 213 is laminated on a surface opposite to a male part 212 at a male side belt-like base part 211 of a zipper tape 20. A female side bonding layer 223 is laminated on a surface opposite to a female part 222 at a female side belt-like base part 221. The male side bonding layer 213 and the female side bonding layer 223 are provided in a position at a distance T from two edges 211A, 221A in the width direction of the belt-like base parts 211, 221 other than a region 23A where an engagement part 23 is provided. In irradiating a laser beam and melting the male side bonding layer 213 and the female side bonding layer 223, the two edges 211A, 221A in the width direction of the belt-like base parts 211, 221 are prevented from expanding even when tensile force is applied, thereby bonding the zipper tape 20 excellently.SELECTED DRAWING: Figure 2 【課題】レーザー光を利用して良好にジッパーテープを接合できるジッパーテープ付袋体を提供する。【解決手段】ジッパーテープ２０の雄側帯状基部２１１に、雄部２１２と反対側の面に雄側接合層２１３を積層形成する。雌側帯状基部２２１に、雌部２２２と反対側の面に雌側接合層２２３を積層形成する。雄側接合層２１３および雌側接合層２２３は、帯状基部２１１、２２１の幅方向の両端縁２１１Ａ、２２１Ａから距離Ｔを介した位置で、かつ係合部２３が設けられた領域２３Ａ以外に設ける。レーザー光を照射して雄側接合層２１３および雌側接合層２２３を溶融した際、張力が作用しても、帯状基部２１１、２２１の幅方向の両端縁２１１Ａ、２２１Ａの伸張が防止され、良好にジッパーテープ２０を接合できる。【選択図】図２