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Large-scale production method of plant indigo dye for garment dyeing

A garment dyeing and production method technology, applied in the field of textile printing and dyeing, can solve the problems such as the inability of large-scale application of plant indigo dye and reduce the number of dyeing times, and achieve the effects of improving the dyeing rate, reducing the number of dyeing times and prolonging the dyeing time.

Active Publication Date: 2019-08-23
苏州麻朵纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a large-scale production method of plant indigo dye for garment dyeing, which can not only solve the problem that plant indigo dye cannot be applied to modern garment dyeing machines in a large scale, but also greatly reduce the number of times of dyeing, from the traditional 6 to 18 times. Dyeing can be reduced to 1 to 3 times of dyeing; the dyeing temperature can also be increased, thereby improving the dyeing rate, level dyeing property, dye penetration, and improving the dry and wet rubbing color fastness and light fastness of plant blue indigo dye

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In this embodiment, a nitrogen inlet is set above the actual working liquid level of the garment dyeing machine, chemical tank, storage tank, garment dyeing auxiliary tank and other equipment. The diameter of the nitrogen inlet is 25 mm. On the nitrogen pipeline connected to the nitrogen inlet Install stainless steel valves. Air outlets are respectively set up on the top of the above-mentioned equipment. The diameter of the air outlets is 32mm, and a check valve is installed at the air outlets; the source of nitrogen gas is bottled nitrogen purchased from outside.

[0041] When dyeing garments, the bath ratio of clothing to water (the ratio of the volume of the dye solution to the weight of the fabric during exhaust dyeing) is 1:30, the amount of blue indigo dye extracted from the fresh stems and leaves of Radix isatidis through fermentation is 40g / L, and the reducing agent is Maltose, fructose, rehmannia root extract and other reducing sugars, the addition amount is 7....

Embodiment 2

[0045] Set a nitrogen inlet above the actual working liquid level of the garment dyeing machine, chemical material tank, material storage tank, and garment dyeing auxiliary tank. The diameter of the nitrogen gas inlet is 25mm, and a stainless steel valve is installed on the nitrogen pipeline connected to the nitrogen gas inlet. An air outlet is set on the top of the above equipment, the diameter of the air outlet is 25mm, and a check valve is installed at the air outlet; the nitrogen source is an on-site nitrogen production device, and nitrogen is produced by the principle of pressure swing adsorption.

[0046] When dyeing garments, the bath ratio of clothing to water is 1:30, first fill the garment dyeing machine with nitrogen, and use a stainless steel self-priming pump to inject the residual liquid from the previous dyeing in the garment dyeing sub-tank sealed with nitrogen into the garment dyeing machine Inside. Then calculate the required process amount for this dyeing ac...

Embodiment 3

[0050] In this embodiment, a nitrogen inlet is set above the actual working liquid level of the garment dyeing machine, chemical material tank, material storage tank, and garment dyeing auxiliary cylinder. valve. An air outlet is set on the top of each equipment, the diameter of the air outlet is 25mm, and a check valve is installed at the air outlet; the source of nitrogen gas is an on-site nitrogen production device, and nitrogen is produced by membrane separation air method.

[0051] When dyeing garments, the liquor ratio of clothing to water is 1:30, first fill the garment dyeing machine with nitrogen, and use a stainless steel self-priming pump to inject the residual dyeing liquid from the previous dyeing vat sealed with nitrogen into the garment dyeing machine . Calculate the required process amount for this dyeing according to the previous process amount, wherein the amount of paste Radix Radix plant dye is 20g / L, and the addition of reducing agent maltose, fructose, r...

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Abstract

The invention relates to a large-scale production method of a plant indigo dye for garment dyeing. The plant indigo dye is used in the large-scale production method of garments, nitrogen is filled into a garment dyeing device to remove the air, or the garment dyeing device is vacuumed to form minus 0.05-minus 0.07MPa negative pressure, the garments are then dyed with the plant indigo dye in the garment dyeing device, the dyeing temperature is 26-70DEG C, and the dyeing time is 50-150 minutes. By the arrangement, the problem that the plant indigo dye cannot be applied to a modern garment dyeingmachine on a large scale can be solved, and dyeing times are greatly reduced from traditional 6-18 times repeated dyeing to 1-3 times; the dyeing temperature can be raised so as to improve dye-uptake, level-dyeing property and dye permeability, and the color fastness of dry and wet friction and light resistance of the plant indigo dye are improved.

Description

technical field [0001] The invention relates to the technical field of textile printing and dyeing, in particular to a large-scale and high-efficiency production method of natural plant indigo dye for garment dyeing. Background technique [0002] "Qi Min Yao Shu" records that "all five kinds of blue can become indigo". Plant indigo dye is made from various bluegrass plants such as Radix Isatidis (Isatis indigo), Polygonum indigo, Horse indigo, Sophora japonica, etc., which are made after natural fermentation. It is the most used plant dye, mainly used for dyeing blue. The raw material of plant indigo dye comes from nature, the dyeing process is friendly to the environment, the finished product has a quiet and natural color, and has natural antibacterial, antibacterial, antiviral and other effects. If plant indigo dye is used in modern printing and dyeing technology, chemical dye pollution can be reduced and the added value of fabric can be greatly increased. [0003] The d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/34D06P1/00D06P3/60
CPCD06P1/34D06P1/00D06P3/60
Inventor 邱平
Owner 苏州麻朵纺织科技有限公司
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