Surface fastener
AssigneeYKK Corporation
InventorsYoshiyuki Fukuhara, Shigeki Matsunaga
Life of this patent
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Abstract
To provide a surface fastener capable of stably ensuring an appropriate peel strength with respect to a loop member and capable of improving texture as compared with a conventional surface fastener. A surface fastener is made of a synthetic resin and includes: a base portion; and a plurality of engaging elements. Each of the engaging elements includes a stem portion, an engaging head portion, and at least one engaging portion protruding from an outer circumference portion of the engaging head portion. A total of the areas of the engaging head portions per 1 cm2 of the surface fastener is 10,000,000 μm2 or more when the surface fastener is viewed in plan view from above. The synthetic resin has a tensile modulus of 700 MPa or more and 2300 MPa or less.
Claims3
A surface fastener made of a synthetic resin, comprising:
- a flat plate-shaped base portion formed to have a large length in a machine direction;
- and a plurality of engaging elements provided on an upper surface of the base portion, wherein
- each of the engaging elements includes a stem portion standing upright from the base portion, an engaging head portion provided at a top end portion of the engaging element and extending outward with respect to a boundary portion with the stem portion, and at least one engaging portion protruding from an outer circumference portion of the engaging head portion,
- a total of areas of the engaging head portions per 1 cm2 of the surface fastener is 10,000,000 μm2 or more when the surface fastener is viewed in plan view from above, and
- the synthetic resin has a tensile modulus of 700 MPa or more and 2300 MPa or less.
Dependencies are inferred from the claim text.