Elastic Filament and Cutting Method and Cutting Structure Thereof and Textile With The Elastic Filament

Abstract

The invention provides a method and a structure for cutting out elastic filaments. The cutting structure has a conveying device and a cutting device; the cutting method cutting an elastic membrane material, the elastic membrane material being combined with at least one cushion layer, conveying the elastic membrane material to the cutting device to cut the elastic membrane material a plurality of times, cutting the elastic membrane material into elastic filaments with certainty, and even cutting out fine elastic filaments. The elastic filament can be woven into a textile, or used as a sewing thread or an embroidery thread for apparel.

What is claimed is: 
     
         1 . A cutting method for elastic filaments cutting out a plurality of elastic filaments from an elastic membrane material, and the cutting method including steps of:
 preparing a membrane material with elasticity, the elastic membrane material being separably combined with at least one cushion layer to form a material to be cut, ductility and flexibility of the cushion layer being lower than that of the elastic membrane material;   conveying the material to be cut to a cutting device to cut the elastic membrane material at least two times including a first cutting and at least one subsequent cutting after the first cutting, each of the cuttings cutting off the elastic membrane material, wherein the first cutting cuts the elastic membrane material into a plurality of filaments with a same width; the subsequent cutting cuts each of the filaments into at least two elastic filaments with a same width; and   separating the elastic filaments from the cushion layer to make the elastic filaments.   
     
     
         2 . The cutting method as claimed in  claim 1 , wherein a cut width of the elastic filament being cut is 0.05 mm˜0.5 mm. 
     
     
         3 . The cutting method as claimed in  claim 1 , wherein in the at least two times of cutting, the cutting does not cut off the cushion layer before performing a last cutting. 
     
     
         4 . The cutting method as claimed in  claim 1 , the cutting device cutting the elastic membrane material two times; and each second cut mark being located at a center of two adjacent first cut marks. 
     
     
         5 . The cutting method as claimed in  claim 1 , wherein the cutting device cuts the elastic membrane material at least three times; a gap between the two adjacent first cut marks has a plurality of cut marks formed by a second cutting and at least a third cutting, and the cut marks between two adjacent first cut marks evenly divide the gap between the two adjacent first cut marks. 
     
     
         6 . The cutting method as claimed in  claim 1 , wherein a thickness of the elastic membrane material is 0.09 mm to 0.5 mm. 
     
     
         7 . The cutting method as claimed in  claim 1 , wherein the cushion layer is PET material. 
     
     
         8 . A cutting structure for elastic filaments cutting an elastic membrane material into a plurality of elastic filaments, and the cutting structure including: a conveying device and a cutting device;
 the conveying device conveying the elastic membrane material toward the cutting device, the cutting device cutting the elastic membrane material; and   the cutting device having at least two rows of a plurality of cutters disposing anteriorly and posteriorly in a conveying direction of the elastic membrane material, the cutters in each of the rows having a same blade distance, in the conveying direction of the elastic membrane material, the at least two rows of the cutters having at least a positional difference; and the at least two rows of the cutters cutting the elastic membrane material into a plurality of elastic filaments.   
     
     
         9 . The cutting structure as claimed in  claim 8 , wherein the positional difference of the two adjacent rows of the cutters is a width of each of the elastic filaments being cut. 
     
     
         10 . The cutting structure as claimed in  claim 8 , wherein the elastic membrane material is separably combined with at least one cushion layer, and ductility and flexibility of the cushion layer are lower than that of the elastic membrane material. 
     
     
         11 . An elastic filament made by the cutting method as claimed in  claim 1 , the elastic filament being a filament with a considerable length, and a cross-section thereof having a pair of parallel sides. 
     
     
         12 . The elastic filament as claimed in  claim 11 , wherein the elastic filament has a width between 0.05 mm and 0.5 mm. 
     
     
         13 . The elastic filament as claimed in  claim 11 , wherein the cross-section of the elastic filament is rectangular, has a width and a thickness, two side surfaces of the elastic filament are cut surfaces, the width is formed between the two side surfaces, and the width of the elastic filament is not greater than the thickness thereof. 
     
     
         14 . The elastic filament as claimed in  claim 11 , wherein the elastic filament being capable of being made into a sewing thread or an embroidery thread. 
     
     
         15 . A textile being a fabric woven with the elastic filament as claimed in  claim 11 . 
     
     
         16 . The textile as claimed in  claim 15 , wherein a cross-section of the elastic filament of the textile is rectangular and has a width and a thickness, and the width and the thickness are the same or different.