CN1302165C - Process for producing rhodia nylon 66 short-fiber blending yarn - Google Patents

Abstract

The present invention relates to a technique for producing Rhodia nylon 66 short-fiber union yarn during spinning production in the textile industry, which is characterized in that the relative humidity of the working procedure of cotton clearing is from 70% to 75%, and the relative humidity of the working procedures of sliver drawing and roving is from 65% to 70%; roving quantity is 15% to 25% lowered than that of conventional cotton yarn spinning, roving twist factor is from 70 to 80, and spinning twist factor is from 300 to 340; double-layer soft pressurized leather rollers are used in the working procedures of drawing, spinning and roving, and a coating layer has the hardness of Schopper 62 plus or minus 3. After the technical measures are utilized, the spinning process is successful, roll sticking, leather roller winding, head breaking and finished yarn cotton knots are controlled within a specified standard range in the processes of cotton clearing, cotton carding, drawing, roving and spinning, and thus, the quality of finished yarn is favorable.

Description

The production technology of sieve ground Ya Nilong 66 staple blended yarn

Technical field

The present invention relates to the spinning engineering field in the caused by spinning industrial production, be specifically related to the production technology of sieve ground Ya Nilong 66 staple blended yarn.

Background technology

Sieve ground Ya Nilong 66 short fibers that France Rhodia produces are a kind of nylon 66 fibers newly developed, have super soft, performance such as gloss is bright-coloured, sense of touch is good.This fiber is compared with other nylon 66 fibers, and fineness is thin, and spinnability is also different, adopts the production technology of common nylon 66 blended yarns just incompatible during spinning.Therefore, when this fiber and other fiber blends, must set up suitable technological parameter.

Summary of the invention

The objective of the invention is to work out corresponding technological parameter for the spinning engineering of sieve ground Ya Nilong 66 staple blended yarn.With cotton,, in the polyester cotton blending production engineering, comprehensively worked out the series of process measure, at sieve ground Ya Nilong 66 comprising following aspect with Modal or Lyocell.

(1) relative humidity of raising blowing, drafting and rove operation, the blowing parameter area is 70%～75%; The relative humidity 65%～70% of drafting and rove operation.

(2) environment temperature of drafting, rove operation is reduced to 23～25 ℃.

(3) for adapting to the low multiple drawing-off of spun yarn, rove quantitatively should be than conventional spinning yarn the time light by 15%～25%; The twist factor of rove is set at 70～80; The spun yarn twist factor is 300～340.

(4) drafting, rove, spinning process adopt double-deck soft pressurization roller, and clad hardness is Shao Shi 62 ± 3.

After having taked above-mentioned measure, spinning process is smooth, glues volume in blowing, comb and parallel cotton fibers prior to spinning, drafting, rove, the spun yarn process, is controlled in the required standard scope around roller, broken end phenomenon and formation yarn nep, and yarn quality is good.

Concrete implementing measure mode

Embodiment 1

1.7dtex the 32Ne knitting yarn is produced in * 40mm sieve ground Ya Nilong 66 and 2.15 grades of cotton 35/65 blending, process route is:

Nylon 66: grab cotton → opener → scutching cotton rolling → comb and parallel cotton fibers prior to spinning → in advance also;

Cotton: as to grab cotton → opener → scutching cotton rolling → comb and parallel cotton fibers prior to spinning → drafting → silver lap → combing;

Nylon 66+ cotton: mixed head also → mix two also → mix three also → rove → spun yarn.

Blowing, drafting, rove operation relative humidity get 70% in the production engineering, 24 ℃ of drafting, rove process temperature, and regular roving feeding is lighter by 20% than routine, roving twist factor 75, spun yarn twist factor 315, the hardness of roller clad is Shao Shi 62.

Embodiment 2

1.7dtex * 40mm sieve ground Ya Nilong 66 and 1.3dtex * 40mm Modal 35/65 blending produce the 40Ne knitting yarn, process route is:

Nylon 66+Modal: hopper mixed cotton → grab cotton → opener → scutching cotton rolling → comb and parallel cotton fibers prior to spinning → head also → two also → rove → spun yarn.

Except that the spun yarn twist factor is got 310, other technological parameters such as embodiment 1.

Embodiment 3

1.7dtex the 45Ne woven yarn is produced in * 40mm sieve ground Ya Nilong 66,1.67dtex * 38mm terylene, 2.15 grades of cotton 12/43/45 ratio blending, technological process is:

Nylon 66+ terylene: hopper mixed cotton → grab cotton → opener → scutching cotton rolling → comb and parallel cotton fibers prior to spinning → in advance also;

Cotton: as to grab cotton → opener → scutching cotton rolling → comb and parallel cotton fibers prior to spinning → drafting → silver lap → combing;

Nylon 66+ terylene+cotton: mixed head also → mix two also → mix three also → rove → spun yarn.

Except that the spun yarn twist factor is got 330, other technological parameters such as embodiment 1.

Claims (1)

1. the production technology of sieve ground Ya Nilong 66 staple blended yarn, the relative humidity that it is characterized in that cotton cleaning process is 70%～75%, the relative humidity of drafting and rove operation is 65%～70%;

The environment temperature of described drafting, rove operation is 23～25 ℃;

Regular roving feeding is light by 15%～25% during than conventional spinning yarn, and roving twist factor is 70～80, and the spun yarn twist factor is 300～340;

Drafting, spun yarn, rove operation adopt double-deck soft pressurization roller, and clad hardness is Shao Shi 62 ± 3.