Dyeing and finishing method of twill lyocell fabric

A twill lyocell, fabric technology, applied in the direction of dyeing, fabric surface trimming, improved hand fiber, etc., can solve the problems of uniform batch of fabrics, such as poor cylinder difference, high energy consumption, large water consumption, etc., to improve color consistency properties, improve color fastness, and avoid the effect of poor cylinder

Pending Publication Date: 2022-06-07
YADONG (CHANGZHOU) SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dyeing and sand washing processes are energy intensive and use a lot of water
Every time the sand washing process is done with sand washing tanks, there will be color differences, which will eventually cause serious tank differences in the same batch of fabrics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] A dyeing and finishing method for twill Lyocell fabrics, consisting of the following steps:

[0027] (1) Desizing: Under the condition of temperature 55 °C and vehicle speed of 60M / min, the twill Lyocell fabric (100% Lyocell yarn, spinning method is ring spinning, the number of yarn branches is 30, the fabric tissue usually uses woven twill tissue) is placed in the despolase (@-amylase) with a concentration of 8g / L, and the concentration of the penite agent (Changzhou Jinyuan Chemical Sec-alkylsulfonic Acid Compound) is 1g / L in a solution of 1g / L, and then the roll is stacked for 8 hours;

[0028] (2) Alkali cooking: Under the condition of continuous flat-width boiling and bleaching machine at a speed of 60M / min, the fabric stacked in step (1) is placed at a concentration of caustic soda at a concentration of 50g / L, and the concentration of the refining agent (Changzhou Jinyuan Chemical Refining Agent 88) is 5g / L in a solution of 15 seconds, steamed for 1min at a temperatur...

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PUM

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Abstract

The invention provides a dyeing and finishing method of a twill lyocell fabric, and belongs to the technical field of textiles. The dyeing and finishing process comprises the steps of desizing, soda boiling, splitting by the steam-fog dyeing machine, unhairing and dyeing by the steam-fog dyeing machine. The low-energy-consumption pretreatment, dyeing and after-finishing method is used, and the energy consumption of electricity, steam and water for lyocell dyeing is integrally reduced. Meanwhile, the process improves the overall color fastness of the lyocell, the dry friction reaches grade 4-5, the wet friction reaches grade 2-3, and the national standard is met. Air washing is used for replacing sand washing in after-treatment, cylinder difference caused by sand washing can be avoided finally, and the color consistency of the fabric is improved.

Description

Technical field [0001] The present invention relates to the field of textile technology, in particular to a dyeing and finishing method of a twill Lyocell fabric. Background [0002] Lyocell fiber, commonly known as "velvet", is a new textile and clothing fabric based on natural plant fibers, which emerged in Europe and the United States in the mid-to-late 1990s. It not only has the comfort, good feel, easy dyeing and other characteristics of natural fiber cotton, but also has the environmental advantages that traditional viscose fiber does not have. [0003] However, the existing Lyocell fabric dyeing and finishing process is complex, the cost is high, and the color fastness of the prepared Lyocell fiber is poor, especially the wet friction fastness, which can usually only achieve 1-2 grades, which is lower than the national standard. And most of the Lyocell fibers are dyed using liquid flow, and the finishing uses the sand washing process. The dyeing and sand washing process co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/38D06P3/66D06P1/673D06P1/653D06M15/643D03D13/00D03D15/225D06C7/02D06M101/06
CPCD06P1/38D06P3/66D06P1/6735D06P1/6533D06M15/643D03D15/225D03D13/00D06C7/02D10B2201/20D06M2101/06D06M2200/50Y02P70/62
Inventor 鲁积刚余家鹏
Owner YADONG (CHANGZHOU) SCI&TECH CO LTD
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