CN1153236A - Method for weaving broad fabrics using narrow fabric loom - Google Patents

Abstract

A method for weaving wide fabrics with narrow loom features that the material with high elongation percentage and without nerviness is used as weft, the relationship among the thickness D of looming weft, the thickness d of weft of finished fabric and the elongation percentagex is D=d(1+x) to the power one over 2, the looming weft density is equal to that of finished fabric, the looming warp density is equal to that of finished fabric X (1+x), and woven fabric is pulled in width to become wide fabric. Its advantages are high productivity and low cost.

Description

Utilize loom in a narrow margin to knit the method for system broad fabrics

The invention belongs to textile technology field.

In all kinds of textile raw materials, a class raw material is arranged, as the pre-contractile filaments of terylene, have tangible characteristics: have higher percentage elongation.These characteristics are regarded as shortcoming always and improve.

The objective of the invention is, the characteristics of high elongation rate material are used, adopt the method that is fit to, knit with loom in a narrow margin and make the wide cut product, boost productivity, reduce production costs.

The objective of the invention is to realize by following means.

A) material texture across warp that adopts high elongation rate and do not bounce back; The pass of thickness of looming weft D and thickness of weft of finished fabric d and weft yarn percentage elongation X is $D=\sqrt{1+X}d;$

B) go up the be set to 1. looming weft density=finished fabric weft density of machine through density and weft density; 2. the machine of going up through density=finished product through density * (1+X);

C) adopt a), b) condition after texture goes out the semi-finished product fabric on the narrow loom, the stretching operation of semi-finished product smallware by broadwise broadening gradually from narrow to wide made it to become broad fabrics.

Adopt method as above, elder generation is by above filling density, through close setting.Be made into semi-finished product on the loom in a narrow margin, again by the expanding of broadening broadwise gradually accordingly, making to have than high elongation rate and the weft yarn of the characteristic that do not bounce back is suitably elongated, and fabric width is increased, warp density diminishes, and obtains the broad fabrics product at last.

The alleged loom of the present invention should comprise loom, knitting machine etc., when utilizing the latter, and the knitting semi-finished product that go out can be to cuing open into single width, and also available former double width directly carries out expanding to be handled.

Description of drawings is as follows.

Fig. 1 is the process chart of the inventive method.

Fig. 2 is the side view of Fig. 1.

The present invention is described in further detail below in conjunction with accompanying drawing.

Among Fig. 1,1 is the semi-finished product fabric, and when weaving the semi-finished product fabric, the material texture across warp that adopts high elongation rate not bounce back, structure are knitted half-finished thickness of looming weft D and the thick d of finished product and weft yarn percentage elongation X relation and satisfied $D=\sqrt{1+X}d$ Structure knit half-finished upper machine through density=Finished product is through density * (1+X); Looming weft density=finished fabric weft density. And exist with condition Weave in a narrow margin semi-finished product 1 on the machine. Half product that weaves has the selvedge of clamping device one On the stenter 2 of (tuck formula or cloth head-clamp), by broadwise increasing gradually from narrow to wide Wide stretching operation (making the tension direction of fabric broadening as shown by arrows in FIG.) becomes The fabric 3,4 of wide cut is the finished product spool.

All weft yarns and the percentage elongation of warp thread can be identical can be not identical yet. When adopting the former, Also can stretch respectively to weft yarn and warp thread and (namely draw earlier weft yarn, again warp thread is turned to weft yarn side To stretching), obtain the product of the equal expanding of warp-wise broadwise.

Embodiment 1: adopt terylene through combination 1/100dtex, and latitude combination 1/100dtex terylene, producing through close 24/CM, filling density is the wide cut product of 20/CM, fabric width 280CM, intending with percentage elongation is 80%.With 1. go up machine through close=finished product through close * (1+80%)=24 * 1.3=43.2 root/CM; 2. go up machine filling density=finished product filling density=20 piece/CM; Last machine filling density lines part=finished product parallel bar part * (1+80%)=100 * 1.8=190dtex.On loom in a narrow margin, weave the semi-finished product that fabric width is 155.56CM and (go up machine fabric width=finished product fabric width/(1+80)=280/1.8=155.56CM).The semi-finished product that weave stretch, promptly get the 280CM broad fabrics with the long rate in 30% Shen on tentering equipment, obtain the wide cut product after corresponding setting post processing.

The inventive method has reasonably been utilized the high elongation rate that always is regarded as some chemical fibre raw material of shortcoming, makes it to become the favorable factor that improves the production rate.

Claims (2)

1, a kind of utilization loom method of knitting the system broad fabrics in a narrow margin adopts to weave semi-finished product earlier and make through the method for post processing, it is characterized in that,

A) material texture across warp that adopts high elongation rate and do not bounce back; The pass of thickness of looming weft D and thickness of weft of finished fabric d and weft yarn percentage elongation X is $D=\sqrt{1+X}\·d;$

B) go up the be set to 1. looming weft density=finished fabric weft density of machine through density and weft density; 2. the machine of going up through density=finished product through density * (1+X);

C) adopt a), b) condition is after texture goes out the semi-finished product fabric on loom in a narrow margin, and the stretching operation of semi-finished product smallware by broadwise broadening gradually from narrow to wide made it to become broad fabrics.

2, utilization according to claim 1 in a narrow margin loom knit the system broad fabrics method, it is characterized in that used weft yarn and warp thread have identical or different percentage elongation.

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