Mixed hook/loop separable fastener and process for its production
AssigneeKuraray Co., Ltd.
InventorYukitoshi Higashinaka
Life of this patent
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Abstract
Provided is mixed hook/loop separable fasteners comprising a base fabric provided on one surface thereof intermixedly with a multiplicity of hook-like fastening elements and a multiplicity of loop-like fastening elements; said hook-like fastening elements having a height of 1.3 to 3.8 mm and said loop-like fastening elements having a height of 1.5 to 4 mm and larger by 0.2 to 2.0 mm than the height of said hook-like fastening elements, and said hook-like fastening elements and loop-like fastening elements being provided in a density of 40 to 120 pieces/cm.sup.2 with the ratio of the number of said hook-like fastening elements to the total being 40 to 60%. Also provided are process for producing the above separable fasteners, as well as their use.
Claims22
A mixed hook/loop separable fastener comprising a base fabric provided on one surface thereof with a multiplicity of hook-like fastening elements and a multiplicity of loop-like fastening elements, wherein:
- a height of said loop-like fastening elements is larger than a height of said hook-like fastening elements, such that top portions of said loop-like fastening elements extend above top portions of said hook-like fastening elements so as to act as a cover over said hook-like elements to prevent damage to adjacent textiles by said hook-like elements and provide for a smooth contact surface;
- said mixed hook/loop separable fastener further having a tensile strength and peeling strength as determined according to JIS L-3416 on a sample obtained by attaching two sheets of said mixed hook/loop separable fastener having the same construction to each other of at least 0.50 kg/cm.sup.2 and at least 55 g/cm, respectively.
The use of mixed hook/loop separable fasteners comprising attaching to each other two sheets of a mixed hook/loop separable fastener having the same construction, wherein:
- said separable fastener comprises a base fabric provided on one surface thereof with a multiplicity of hook-like fastening elements and a multiplicity of loop-like fastening elements;
- a height of said loop-like fastening elements is larger than a height of said hook-like fastening elements, such that top portions of said loop-like fastening elements extend above top portions of said hook-like fastening elements so as to act as a cover over said hook-like fastening elements to prevent damage to adjacent textiles by said hook-like fastening elements and provide for a smooth contact surface;
- wherein said hook-like fastening elements comprise shaped projections having a swollen head at each of their ends and said loop-like fastening elements comprise a multifilament yarn consisting of 2-50 filaments having a diameter of 20 to 100.mu..
A mixed hook/loop separable fastener comprising:
- a base fabric provided on one surface thereof with a multiplicity of hook-like fastening elements and a multiplicity of loop-like fastening elements;
- wherein:
- said hook-like fastening elements and said loop-like fastening elements have cooperatively related heights, the height of said loop-like fastening elements being greater than the height of said hook-like fastening elements such that top portions of said loop-like fastening elements extend above top portions of said hook-like fastening elements and act as cover over said hook-like fastening elements, which provides for a smooth contact surface;
- wherein said hook-like fastening elements comprise shaped projections having a swollen head at each of their ends and said loop-like fastening elements comprise a multifilament yarn consisting of 2-50 filaments having a diameter 20 to 100.mu..
The use of mixed hook/loop separable fasteners comprising attaching to each other two sheets of a mixed hook/loop separable fastener having the same construction, wherein:
- said separable fastener comprises a base fabric provided on one surface thereof with a multiplicity of hook-like fastening elements and a multiplicity of loop-like fastening elements;
- and
- said hook-like fastening elements and said loop-like fastening elements having cooperatively related heights, the height of said loop-like fastening elements being greater than the height of said hook-like fastening elements such that top portions of said loop-like fastening elements extend above top portions of said hook-like fastening elements and not as cover over said hook-like fastening elements, which provides for a smooth contact surface;
- said mixed hook/loop separable fastener further having a tensile strength and peeling strength as determined according to JIS L-3416 on a sample obtained by attaching two sheets having the same construction to each other of at least 0.50 kg/cm.sup.2 and at least 55 g/cm, respectively.
Dependencies are inferred from the claim text.