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A kind of dyeing method of wool fiber by using walnut green peel 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 wool fiber drying, increase dyeing cost, and affect color fixing rate, etc., and achieve the effect of reducing microwave power, shortening color fixing time, and improving color fixing efficiency

Active Publication Date: 2021-04-27
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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  • A kind of dyeing method of wool fiber by using walnut green peel pigment
  • A kind of dyeing method of wool fiber by using walnut green peel pigment
  • A kind of dyeing method of wool fiber by using walnut green peel 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 fiber with walnut green peel pigment, which belongs to the technical field of textile printing and dyeing. The dyeing method comprises the following steps: after the wool fiber is conditioned and balanced, it is pretreated in a microwave with a power of 560-700W for 1-3 minutes; the wool fiber is dyed with a walnut green peel pigment dye stock solution, and after dyeing, it is washed with water and dried naturally; The dyed wool fiber is immersed in the mordant dyeing solution, and the mordant dyeing is carried out under the microwave condition of 140-420W, and the time is 1-5min; after the fixed wool fiber is washed and dried, the walnut green skin pigment dyed product is obtained. wool fibers. The invention not only reduces the microwave power and shortens the color fixing time, but also improves the color fixing efficiency and reduces the microwave energy consumption by utilizing the walnut green peel pigment for exhaust dyeing and mordant color fixing under the microwave condition with a power of 140-420W. Moreover, the color difference of wool fiber after dyeing reaches 43.85, and the color fastness to washing is above grade 4.

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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Patent Type & Authority Patents(China)
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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