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Dyeing method for dyeing wool fibers through walnut green seedcase pigment

A technology of wool fiber and walnut green husk, which is applied in the field of textile printing and dyeing, can solve the problems of affecting color fixing rate, increasing dyeing cost, drying wool fiber, etc., and achieves the effects of improving color fixing efficiency, shortening color fixing time, and reducing microwave power

Active Publication Date: 2020-08-11
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this dyeing process has the following disadvantages: ①The microwave power is high and the heating time is relatively long, which not only causes a large amount of moisture in the wool fiber to evaporate and dry during the color fixing process, which affects the color fixing rate and even damages the fiber, but also consumes a lot of microwave energy. High, which increases the cost of dyeing and greatly increases the probability of microwave leakage

Method used

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  • Dyeing method for dyeing wool fibers through walnut green seedcase pigment
  • Dyeing method for dyeing wool fibers through walnut green seedcase pigment
  • Dyeing method for dyeing wool fibers through walnut green seedcase pigment

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Embodiment 1

[0040] The present embodiment provides a kind of extraction method of walnut green peel pigment stoste, comprises the following steps:

[0041] Step 1: According to the liquid-to-material ratio of 24:1, 2.0 g of green walnut peel powder was added to 48 mL of ethanol solution, fully stirred and dissolved, and a suspension of walnut green peel powder was prepared, and the volume fraction of the ethanol solution was 60%;

[0042] Step 2: placing the walnut green husk powder suspension in a microwave oven, and extracting it for 1 min under a microwave condition with a power of 450W;

[0043] Step 3: Leave the suspension extracted in Step 3 to room temperature, filter through filter paper, and collect the ethanol pigment solution and filter residue respectively, wherein the ethanol pigment solution is the walnut green peel pigment stock solution;

[0044] The filter residue is placed in a vacuum drying oven to dry and weigh;

[0045] After the walnut green peel pigment stock solut...

Embodiment 2

[0065] Present embodiment provides a kind of dyeing method that utilizes walnut green peel pigment to dye wool fiber, and its steps are as follows:

[0066] Step 1: At a temperature of 20-25°C and a humidity of 60-70%, after the wool fiber sample is conditioned and balanced, put it into a polyethylene film bag that does not absorb microwaves and seal it, and then Place in a microwave oven and pretreat for 3 minutes under a microwave condition with a power of 700W;

[0067] Step 2: Add a leveling agent (Pingpinga O-25) to the walnut green peel pigment stock solution prepared according to the extraction method of Example 1, and after adjusting its pH to 4.5, make the walnut green peel pigment stock solution, and then prepare it at a liquor ratio of 1:50, under the condition that the temperature is 80°C, the wool fiber sample pretreated in step 1 is exhaust-dyeed for 60 minutes, and the wool fiber sample is fully washed with water after dyeing, and naturally dried for later use. ...

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Abstract

The invention discloses a dyeing method for dyeing wool fibers through a walnut green seedcase pigment, and belongs to the technical field of textile printing and dyeing. The dyeing method comprises the steps: the wool fibers are subjected to humidity conditioning equilibrium and then pretreated in microwaves with the power being 560-700 W for 1-3 min; the wool fibers are dyed through a walnut green seedcase pigment stock dye solution, and after being dyed, the wool fibers are washed with water and naturally aired; the dyed wool fibers are immersed in mordanting color-fixation liquid and subjected to mordanting color fixation for 1-5 min under the condition of microwaves with the power being 140-420 W; and after the wool fibers subjected to color fixation are washed with water and dried, the walnut green seedcase pigment dyed wool fibers are obtained. Dip dyeing is conducted through the walnut green seedcase pigment, mordanting color fixation is conducted under the condition of the microwaves with the power being 140-420 W, thus the microwave power is decreased, the color-fixation time is shortened, the color-fixation efficiency is improved, microwave energy consumption is reduced,the color difference of the dyed wool fibers reaches 43.85, and meanwhile the color fastness to washing is grade 4 or above.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a dyeing method for dyeing wool fibers with walnut green peel pigment. Background technique [0002] Walnut green peel, also known as Qinglongyi, is the green exocarp of immature walnuts and has certain toxicity. As the main by-product of the walnut industry, most of the walnut green skins are directly discarded, and their value has not been fully developed and utilized. This not only causes a great waste of resources, but also seriously pollutes the ecological environment, and even threatens the survival of animals and plants. In recent years, studies on the components and applications of walnut green peel have shown that walnut green peel pigment is a safe and non-toxic natural pigment with water solubility, good heat resistance and light resistance, easy biodegradation, and no allergies to the skin It can be applied to the printing and dyeing o...

Claims

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Application Information

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IPC IPC(8): D06P3/14D06P1/34D06P1/44D06P5/10D06M10/00C09B61/00C09B67/54
CPCC09B61/00C09B67/0096D06M10/003D06P1/34D06P1/445D06P3/14D06P5/10
Inventor 王雪梅张文泰易帆郭潇涵杨亮陈莉萍张天芸
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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