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Production process for fluorescent brightening flat filaments

A technology for whitening flat yarn and production process, which is applied in the direction of rayon cleaning/drying, wet spinning, etc., can solve the problems of no fluorescence effect, low whiteness of flat yarn, etc., and achieves smooth surface and strong adhesion ability. , The effect of improving whiteness

Active Publication Date: 2014-03-12
YIBIN GRACE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The flat yarns produced by the above processes have their own advantages, but the whiteness of these flat yarns is generally not high, only about 80%, and they do not have fluorescent effects. The whiteness requirement is getting higher and higher. The higher the whiteness and the better the fluorescent effect, the flat yarn is more likely to be favored by customers. In order to meet the needs of the market, it is very necessary to produce a flat yarn with high whiteness and fluorescent effect. of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A production process for fluorescent whitening flat yarns, comprising the following process steps:

[0047] a. Viscose metering molding

[0048] After the viscose is metered by the metering pump, it is sent to the flat spinneret through the curved tube, and the flat spinneret sprays out filaments. After the filaments pass through the acid bath, they are drawn by the drafting roller, and the coagulation roller is solidified and formed; the viscosity of the viscose is 28S , Maturity in NH 4 The Cl value was calculated as 9.8ml.

[0049] b. The first washing

[0050]After the filaments are coagulated and formed by coagulation rollers, they are sent to the washing tank for the first washing;

[0051] c, twisted

[0052] Send the strands washed in the washing tank to the twisting machine to twist;

[0053] d, the second washing

[0054] Send the twisted filaments to the post-treatment washing station for the second washing;

[0055] e. The third washing

[0056] Send...

Embodiment 2

[0075] A fluorescent whitening flat yarn production process is characterized in that: comprising the following process steps:

[0076] a. Viscose metering molding

[0077] After the viscose is metered by the metering pump, it is sent to the flat spinneret through the curved tube, and the flat spinneret sprays out filaments. After the filaments pass through the acid bath, they are drawn by the drafting roller, and the coagulation roller is solidified and formed; the viscosity of the viscose is 33S, Maturity in NH 4 The Cl value was calculated as 9.8ml.

[0078] b. The first washing

[0079] After the filaments are coagulated and formed by coagulation rollers, they are sent to the washing tank for the first washing;

[0080] c, twisted

[0081] Send the strands washed in the washing tank to the twisting machine to twist;

[0082] d, the second washing

[0083] Send the twisted filaments to the post-treatment washing station for the second washing;

[0084] e. The third wa...

Embodiment 3

[0104] A fluorescent whitening flat yarn production process is characterized in that: comprising the following process steps:

[0105] a. Viscose metering molding

[0106] After the viscose is metered by the metering pump, it is sent to the flat spinneret through the curved tube, and the flat spinneret sprays the filaments. The filaments are drawn by the drafting roller after passing through the acid bath, and the coagulation roller is solidified and formed; the viscosity of the viscose is 30S, Maturity in NH 4 The Cl value was calculated to be 9.6 ml.

[0107] b. The first washing

[0108] After the filaments are coagulated and formed by coagulation rollers, they are sent to the washing tank for the first washing;

[0109] c, twisted

[0110] Send the strands washed in the washing tank to the twisting machine to twist;

[0111] d, the second washing

[0112] Send the twisted filaments to the post-treatment washing station for the second washing;

[0113] e. The third w...

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Abstract

The invention relates to a production process for fluorescent brightening flat filaments. The production process includes the steps of mucilage glue metering forming, first washing, twisting, second washing, third washing alkali washing, fourth washing, fifth washing, fluorescent brightener washing, oiling, drying and humidifying. By means of the process steps, the fluorescent effect of the flat filaments can be achieved, meanwhile, brightness of the flat filaments can be improved and reach about 90%, and the demands of the current market are met.

Description

technical field [0001] The invention relates to the field of viscose fiber production, in particular to a flat yarn production process. Background technique [0002] Flat yarn combines the excellent properties of ordinary Vicat fiber and hemp fiber. The fabric is smooth, elastic and soft, rich in three-dimensionality, comfortable and pleasant; it has the characteristics of moisture absorption and heat dissipation, and is easier to dye. [0003] The application number is 200610021657.1, and the Chinese invention patent application published on March 5, 2008 discloses a super-coarse denier flat yarn and its preparation method. The disclosed preparation method includes preparation of color paste, deep aging, and the aging time is 12 ~15 hours, ripening degree 8.0±1.0ml, defoaming, spinning with spinning machine, washing with water, drying into cylinder. The method can obtain 10-20 single filaments, 60-120D single-filament fiber degree and 90-110 mills per meter twist. [0004...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/06D01D10/06
Inventor 夏长林刘键孙毅赵兴强
Owner YIBIN GRACE
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