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New dyeing process of polyester air-varying yarn

A kind of technology of air-changing yarn and new process, which is applied in the new technology field of polyester air-changing yarn dyeing, can solve the problems of small movement binding force of macromolecular segments, uneven penetration of dye liquor, and dyeing of color patterns, and achieves the best dyeing effect of dyes. Good fastness, changing the internal structure, the effect of uniform dyeing

Inactive Publication Date: 2011-12-14
福建锦丰印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above process is widely used because of the advantages of smooth yarn surface after dyeing, less burr and high production efficiency. Oriented supramolecular structure features, under hot and humid conditions, the binding force on the movement of macromolecular segments is small, and the amorphous macromolecules in the highly oriented part are prone to disorientation, resulting in high irregular shrinkage of cheese under high temperature The shrinkage rate can reach 15% to 25%. After entering the dyeing process, the uneven yarn density of the inner and outer layers of the package will cause uneven penetration of the dye solution during dyeing, resulting in color flowers and uneven dyeing during the dyeing process. The phenomenon

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: The present invention discloses a new dyeing process of polyester air variable yarn, comprising the following steps:

[0022] 1) Loose-type winding process: use a common loose-type winder to wind the high-density straight-tube polyester space-changing yarn to the dyeing cylinder to form a density of 0.35g / cm 3 package yarn;

[0023] 2) Steaming pre-setting: Put the cheese after loose winding into the steam box, vacuumize the box to reach a negative pressure of 145mbar, inject steam into the box and steam for 120 minutes, and the steam pressure is controlled at 0.2MPA, The steaming temperature is controlled at 130°C, and the cheese is pre-shrunk and shaped, and after steaming, it is kept at 130°C for 20 minutes;

[0024] 3) Loose-type winding process: the package yarn after pre-shrinking and setting is winded again by ordinary loose-type winding machine to a density of 0.35g / cm 3 the cheese;

[0025] 4) Dyeing process: Put the package yarn after loose wi...

Embodiment 2

[0032] Embodiment 2: The present invention discloses a new dyeing process of polyester air variable yarn, comprising the following steps:

[0033] 1) Loose-type winding process: use a common loose-type winder to wind the high-density straight-tube polyester space-changing yarn to the dyeing cylinder to form a density of 0.35g / cm 3 package yarn;

[0034] 2) Steam pre-setting: Put the cheese after loose winding into the steam box, vacuumize the box to make the negative pressure of 145mbar, inject steam into the box and steam for 100 minutes, and the steam pressure is controlled at 0.3MPA , the steaming temperature is controlled at 130°C, and the cheese is pre-shrunk and shaped, and after steaming, it is kept at 130°C for 40 minutes;

[0035] 3) Loose-type winding process: the package yarn after pre-shrinking and setting is winded again by ordinary loose-type winding machine to a density of 0.35g / cm 3 the cheese;

[0036] 4) Dyeing process: put the package yarn after loose win...

Embodiment 3

[0043] Embodiment 3: The present invention discloses a new process for dyeing polyester air variable yarn, which includes the following steps:

[0044] 1) Loose-type winding process: use a common loose-type winder to wind the high-density straight-tube polyester space-changing yarn to the dyeing cylinder to form a density of 0.35g / cm 3 package yarn;

[0045] 2) Steaming pre-setting: Put the cheese after loose winding into the steam box, vacuumize the box to reach a negative pressure of 145mbar, inject steam into the box and steam for 130 minutes, and the steam pressure is controlled at 0.15MPA , the steaming temperature is controlled at 130°C, and the cheese is pre-shrunk and shaped, and after steaming, it is kept at 130°C for 30 minutes;

[0046] 3) Loose-type winding process: the package yarn after pre-shrinking and setting is winded again by ordinary loose-type winding machine to a density of 0.35g / cm 3 the cheese;

[0047] 4) Dyeing process: Put the package yarn after l...

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Abstract

The invention relates to the technical field of textile printing and dyeing and provides a novel dyeing process for polyester air textured yarns. By the process, a dyeing solution can fully penetrate yarns on the inner layer and the outer layer of a cheese during dyeing, so that the yarns of the cheese are free of inner and outer layer chromatic aberration. The novel dyeing process comprises a loose cheese winding procedure, a steaming and forming procedure, a second loose cheese winding procedure, a dyeing procedure, a post-arranging procedure and a dehydrating and drying procedure.

Description

technical field [0001] The invention relates to a new process for dyeing polyester space-changing yarn, which belongs to the technical field of textile printing and dyeing. Background technique [0002] In recent years, special processing technology has been used in polyester space-changing yarn, which makes polyester yarn have the feel and soft touch of natural cotton yarn, and at the same time overcomes the wrinkle resistance of cotton, is washable and easy to care, and is widely used in the production of various textiles (decorative cloth, curtain cloth, sofa release, pillows, cushions, head scarves, scarves and fashion fabrics, etc.). The dyeing of polyester air-converted yarn is carried out on the high-temperature and high-pressure cheese dyeing machine by high temperature and high pressure method. Due to the compact structure of polyester fiber, disperse dyes are hardly dyed under low temperature conditions, and high temperature dyes are required to be dyed. The exist...

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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IPC IPC(8): D06B3/09D06B15/10
Inventor 李伟国洪开港
Owner 福建锦丰印染有限公司
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