A retaining device includes a base (51) extending in a longitudinal direction and presenting a top face (511) and a bottom face (512); and a plurality of retaining elements extending from the top face (511) of the base (51), each of the retaining elements being formed by a stem (52) surmounted by a head (53), the stem (52) having a bottom end (521) connected to the base (51), and a top end (522) opposite from the bottom end (521), the head (53) surmounting the top end (522) of the stem (52), and having a bottom face facing towards the base and a top face opposite from the bottom face.

The present disclosure relates to a web (10, 40) having precursors (18) for a mechanical fastener (48). The web (10, 40) having precursors (18) comprises a backing (30) and a plurality of precursors (18) arranged on the backing (30). The precursors (18) have a width (20, 22, 52, 58) at the proximal end (16, 50) which is larger than the height (24, 26) of the precursors (18). The thickness (32) of the backing (30) is 10-100 μm.

A touch fastener system, consisting of two interconnectable and detachable touch fastener parts (4), each of which has a plurality of fastening elements (6) projecting from a carrier, which fastening elements (6) can be brought into detachable engagement with each other opposite from each other in a predeterminable connection area, wherein the fastening elements (6) of the one type of a touch fastener part (4) within the connection area receive the fastening elements (20) of the other type between them forming strips (22, 24), is characterized in that one of the touch fastener parts (4) has fastening elements (6) of only one type, which, when engaged within the connection area, are connected to fastening elements (6) of this type and to fastening elements (20) of a further type of the respective other touch fastener part (4).

In this molded surface fastener, plural engaging elements having a stem portion and an engaging head portion formed integrally on the stem portion are standing on the base portion, at least one pawl portion having a pawl width dimension narrower than a width dimension at a boundary between the stem portion and the engaging head portion is protruded on an outer peripheral edge part of the engaging head portion, and a back surface of pawl of the pawl portion is formed at different angles with respect to a back surface of head portion of the engaging head portion. Such a molded surface fastener of the present invention has a substantial engaging force with respect to a female surface fastener and can make a texture of its surface comfortable.

There is provided a hook-and-loop fastener manufacturing method. Injection molding is performed to form a molded product in which a pillar group and a base plate having a surface from which the pillar group protrudes are integrated into a unified body. A tip part of the pillar group is cut to form a cut product in which a small pillar group shorter than the pillar group and the base plate are integrated into a unified body. A tip part of the small pillar group is melted to form pillar body portions which are non-melted portions and engaging portions which are melted portions and thicker than the pillar body portions from small pillars. The engaging portions are cooled to determine shapes of a plurality of engaging elements including the pillar body portions and the engaging portions.

Arrays of male fastener elements are formed by molding preforms in cavities defined in one or more adjacent plates and shaped to mold preform arms that extend to a plate side, such as in a cross-machine direction of a continuous molding process. The preforms may be deformed to flatten their upper surfaces and lengthen the arms. Stems of preforms have molded side surfaces and each have width, measured in the longitudinal direction of the strip, that narrows with distance from the strip surface, and also narrows with distance from a parting line extending from the strip surface to the head between the arms.

A fabric having a restraining function is fabricated through at least one yarn having thermoplastic fibers, at least one surface of the fabric has hairiness formed with a plurality of thermoplastic hairs, wherein a first restraining hair having a distal end formed with a spherical member and/or a columnar member is formed through at least a part of the thermoplastic hairs, second restraining hair having a distal end formed with an irregular deformed member is formed through at least a part of the first restraining hairs, so that the at least one surface of the fabric is able to provide a restraining function in a horizontal direction and in a vertical direction to a plurality of fibriform loops.

A flexible fastener includes a plurality of arrays of studs engaged with complimentary arrays of rings. The studs of each array are connected to diagonally adjacent studs via arms adjoining the stem of the stud. Interstitial recesses defined by the arms and stems are sized and configured to engage with the heads of studs on an engaging fastener piece. In embodiments, the fastener provides high tensile strength, continuous adjustment in two directions, and improved comfort when used in a garment. In some embodiments the fastener includes features which ensure alignment between pieces.

The fastening system includes first and second fastening members, each having a backing and rows of rail segments protruding from the backing. The rails segments have a base portion attached to the backing and a cap portion distal from the backing. The cap portion has a cap width that is greater than a width of the base portion. There are rows of posts protruding from the backing of at least the first fastening member. When the first and second fastening members undergo fastening, the posts bend away from the rail segments while the cap portions of the rail segments of the first and second fastening members pass by each other and then return to their original positions after the first and second fastening members are fastened. The fastening system attached to a portion of a package is also disclosed.

Provided is a molded surface fastener having an improved balance between durability against repeated attachment and detachment operations and peeling strength. A molded surface fastener made of a thermoplastic resin, includes: a flat plate-shaped base portion; and a plurality of engaging elements protruding from one main surface of the base portion. Each engaging element includes: a stem upstanding from the main surface; and an engaging head portion formed at an upper end portion of the stem, the head portion including a projection portion extending mainly in a direction perpendicular to a molding direction as viewed in a planar view.