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US 4,372,998 AGranted
Heat adhesive tapes for finishing hems of trousers, skirts and like articles
AssigneeShimada Shoji Co., Ltd.
InventorYukio Shimada
Life of this patent
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AssigneeShimada Shoji Co., Ltd.
InventorYukio Shimada
Estimating the term…
A heat adhesive tape comprising a tape main body of heat-resistant woven or knitted fabric and a heat adhesive thread of thermoplastic resin provided at each side of the main body on one surface thereof. To form a finished hem on trousers, skirts or the like, the tape is placed on the main body of the hem portion and on a folded-back portion of the hem portion and then heat-pressed as by ironing. The heat adhesive thread is woven or knitted into the main body zigzag in a staggered or wavy form or in the form of a series of turns and is thereby made almost free of shrinkage longitudinally of the tape when heat-pressed. A thermoplastic resin thread meltable at a lower temperature than the adhesive thread and fastening the thread to the main body at its furrow portions melts before the adhesive thread during heat pressing so as not to permit the adhesive thread to exert a shrinkage force on the main body also widthwise thereof when the tape is heat-pressed.
A heat adhesive tape for forming finished hems on fabric material such as trousers, skirts or the like by the application of heat, comprising a tape main body made of heat-resistant fabric, said tape main body having a heat adhesive thread of thermoplastic resin disposed in zigzag fashion, said tape main body having incorporated therein a thermoplastic resin fastening thread for fastening said heat adhesive thread to said tape main body, said fastening thread having a lower melting temperature than the melting temperature of said heat adhesive thread, said heat adhesive thread and said fastening thread being constructed and arranged such that upon application of heat thereto said fastening thread will melt first before said heat adhesive thread melts to thereby release the fastening of said heat adhesive thread to said tape main body by said fastening thread before said heat adhesive thread is subsequently melted by the continued application of said heat, said heat adhesive thread thereby melting and fusing to said fabric material to form a finished hem while substantially precluding shrinkage of said tape main body.
A fabric material for joining to another fabric material, comprising a body of heat resistant fabric material, at least one heat adhesive thread attached to said body and at least one fastening thread meltable at a lower temperature than said heat adhesive thread for attaching said heat adhesive thread to said body, said heat adhesive thread and said fastening thread being constructed and arranged such that upon application of heat thereto, said fastening thread will melt first before said heat adhesive thread melts to thereby release the fastening of said heat adhesive thread to said body by said fastening thread before said heat adhesive thread is subsequently melted by the continued application of heat, said heat adhesive thread thereby melting and fusing to said other fabric material while substantially precluding shrinkage of said body in a longitudinal direction.
A method of forming a hem or the like on fabric material comprising disposing a heat adhesive thread in zigzag fashion along at least a portion of a tape main body, fastening said heat adhesive thread to said tape body by a fastening thread, said fastening thread having a lower melting temperature than said heat adhesive thread, placing said tape main body on said fabric material at the hem to be formed, and applying heat to said tape main body to initially melt said fastening thread to effect unfastening of said heat adhesive thread prior to melting of said heat adhesive thread and to subsequently melt said unfastened heat adhesive thread upon the continued application of heat, whereby shrinking of said tape body is substantially precluded as said tape main body is thereby affixed to said fabric material to form said finished hem.
A method of joining fabric material comprising disposing a heat adhesive thread on one fabric material to be joined, fastening said heat adhesive thread to said one fabric material by a fastening thread, said fastening thread having a lower melting temperature than said heat adhesive thread, placing said one fabric material on another fabric material to be joined, and applying heat to said one fabric material to initially melt said fastening thread to effect unfastening of said heat adhesive thread prior to melting of said heat adhesive thread and to subsequently melt said unfastened heat adhesive thread upon the continued application of heat, whereby shrinking of said one fabric material is substantially precluded as said one fabric material is thereby affixed to said other fabric material.
Dependencies are inferred from the claim text.