Method for dyeing regenerated cellulose fibers through isatis root natural dyestuff and application of method to mask

A technology of regenerated cellulose and natural dyes, applied in the field of fiber dyeing, can solve the problems of high dimensional change rate of finished products, low color fixation rate, low dyeing rate, etc. The effect of less waste water discharge

Active Publication Date: 2016-05-04
ZHONGKE TEXTILE RES INST QINGDAO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (1) Low dyeing rate and low color fixation rate;
[0010] (2) High formaldehyde content;
[0011] (3) High dimensional change rate of finished products;
[0012] (4) Low color fastness, easy to fade and large color difference;
[0013] (6) The amount of dye is large, the production cost

Method used

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  • Method for dyeing regenerated cellulose fibers through isatis root natural dyestuff and application of method to mask
  • Method for dyeing regenerated cellulose fibers through isatis root natural dyestuff and application of method to mask

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1 A method of dyeing regenerated cellulose fibers (viscose fibers) using Radix Radix natural dyes

[0053] (1) Cleaning, drying and crushing of Radix isatidis raw materials

[0054] Take Radix Isatidis (the dried root of the cruciferous plant Isatis indigo), ultrasonically clean it at 20KHZ for 2 minutes at room temperature, then clean it with 40KHZ ultrasonically for 1 minute, air-dry at low temperature, and perform jet milling. The condition of jet milling is set as follows: The pressure is 1.2MPa; the screw feeding speed is 22HZ; the frequency of the classifier motor is set to 12HZ, and the particle size of the crushed material is crushed to 100 mesh to obtain Radix isatidis powder.

[0055] (2) Ultrasonic-assisted subcritical extraction of Radix isatidis dye

[0056] Take Radix isatidis powder, choose ethanol with a concentration of 65% as a solvent, ultrasonic power is 1200w, and ultrasonic frequency is 51-60KHz. The mass ratio of Radix isatidis powder to...

Embodiment 2

[0108] Example 2 A method of dyeing regenerated cellulose fibers (modal fibers) using Radix isatidis natural dyes

[0109] (1) Cleaning, drying and crushing of Radix isatidis raw materials

[0110] Take Radix Isatidis (the dried root of the cruciferous plant Isatis indigo), and use 10KHZ ultrasonic cleaning for 2 minutes at room temperature, then use 20KHZ ultrasonic cleaning for 5 minutes, air-dry at low temperature, and perform jet milling. The condition of jet milling is set as: air storage tank The pressure is 1.5MPa; the screw feeding speed is 30HZ; the frequency of the classifier motor is set to 20HZ, and the particle size of the crushed material is crushed to 200 mesh to obtain Radix isatidis powder.

[0111] (2) Ultrasonic-assisted subcritical extraction of Radix isatidis dye

[0112] Take Radix isatidis powder, choose ethanol with a concentration of 70% as solvent, ultrasonic power is 1500w, ultrasonic frequency is 60KHz. The mass ratio of Radix isatidis powder to s...

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Abstract

The invention provides a method for dyeing regenerated cellulose fibers through isatis root natural dyestuff. The method is characterized by comprising the steps of dye liquor preparation, regenerated cellulose fiber modification treatment and modified regenerated cellulose fiber dyeing. The invention further provides an application of the method for dyeing the regenerated cellulose fibers through the isatis root natural dyestuff to a mask. According to the method for dyeing the regenerated cellulose fibers through the isatis root natural dyestuff, the dyed regenerated cellulose fibers are high in dye uptake and fixation rate, low in formaldehyde content and finished size change rate, high in fastness, low in value of chromatism and good in ultraviolet-proof performance; no inorganic salt or sodium carbonate needs to be added during dyeing, consumption of the dyestuff is low, production cost is reduced, and emission of dyeing wastewater is low; the prepared mask is good in dust removal effect; the removal rate for ammonia pollutants and nitrogen and oxygen pollutants reaches 97.5% to 97.6%; a good antibacterial effect is achieved.

Description

technical field [0001] The invention relates to a method for dyeing and processing regenerated cellulose fibers with natural dye of Radix isatidis and its application in masks, belonging to the field of fiber dyeing. Background technique [0002] In the middle and late 20th century, the large-scale use of masks was significantly frequent. Masks have played an important role several times in preventing and blocking the spread of germs in the previous major flus that have been recorded in history. The materials for making masks are continuously updated, and the function of masks to filter bacteria has also been enhanced. The types of masks are gradually increasing. Surgical masks made of cotton fabric. With the development of the times, mask products can not only block dust and droplets, but also block germs, PM2.5, etc. In 2003, the SARS epidemic occurred in China. The use and popularization of masks reached a new climax. A "SARS" almost made masks out of stock for a time....

Claims

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Application Information

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IPC IPC(8): D06P1/34D06P1/667D06P1/642D06P1/651D06P1/613D06P1/62D06P3/60D06P5/06D06P5/08D06M15/11D06M15/263D06M15/643D06M15/53D06M13/292D06M11/46A41D13/11D06M101/06
CPCA41D13/1192D06M11/46D06M13/292D06M15/11D06M15/263D06M15/53D06M15/643D06M2101/06D06P1/34D06P1/6138D06P1/625D06P1/6426D06P1/65131D06P1/667D06P3/60D06P5/06D06P5/08
Inventor 黄效华姜明亮李鹏程陈孝之
Owner ZHONGKE TEXTILE RES INST QINGDAO CO LTD
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