Rhododendron simsii antibacterial vegetable dye emulsion, preparation method and application in textile dyeing

A technology of plant dyes and rhododendrons, applied in textiles and papermaking, dyeing methods, natural dyes, etc., can solve the problems of many impurities and interfering components, and reduce the antibacterial effect, and achieve the effect of solving solubility differences and stability

Active Publication Date: 2021-04-27
长乐联丰染整有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If the rhododendron is extracted from all components to prepare dyes, there will be more impurities and interfering components, and the antibacterial effect will be significantly reduced.

Method used

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  • Rhododendron simsii antibacterial vegetable dye emulsion, preparation method and application in textile dyeing
  • Rhododendron simsii antibacterial vegetable dye emulsion, preparation method and application in textile dyeing
  • Rhododendron simsii antibacterial vegetable dye emulsion, preparation method and application in textile dyeing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. The extraction method of rhododendron extract is as follows:

[0033] (1) Raw material pretreatment: collect fresh Rhododendron, remove impurities, and wash;

[0034] (2) Extraction of rhododendron flower extract: place the processed rhododendron flower in the round bottom flask of the volatile oil extractor, add 8 times the amount (V / W) of distilled water, boil, steam distillation and extraction for 5 hours, and extract from the volatile oil extractor Separating the volatile oil part from the distillate to obtain Rhododendron essential oil; the extracted medicinal residue and water extract were filtered through gauze, the filtrate was centrifuged at 9000 rpm for 5 minutes, the supernatant was collected, freeze-dried, and loose freeze-dried powder;

[0035] (3) Use macroporous resin to separate and purify the active ingredients of rhododendron from the freeze-dried powder obtained above, weigh the freeze-dried powder, add 6 times the amount of distilled water (V / W),...

Embodiment 2

[0046] 1. The extraction method of rhododendron extract is as follows:

[0047] (1) Pre-treatment of raw materials: collect fresh rhododendrons, remove impurities, and wash;

[0048] (2) Extraction of rhododendron flower extract: place the processed rhododendron flower in the round bottom flask of the volatile oil extractor, add 9 times the amount (V / W) of distilled water, boil, steam distillation and extraction for 5 hours, and extract from the volatile oil extractor Separating the volatile oil part from the distillate to obtain Rhododendron essential oil; the extracted medicinal residue and water extract were filtered through gauze, the filtrate was centrifuged at 9000 rpm for 5 minutes, the supernatant was collected, freeze-dried, and loose freeze-dried powder;

[0049](3) Use the macroporous resin to separate and purify the active ingredients of rhododendron from the freeze-dried powder obtained above, weigh the freeze-dried powder, add 5 times the amount of distilled wat...

Embodiment 3

[0060] 1. The extraction method of rhododendron extract is as follows:

[0061] (1) Raw material pretreatment: collect fresh Rhododendron, remove impurities, and wash;

[0062] (2) Extraction of rhododendron flower extract: place the processed rhododendron flower in the round bottom flask of the volatile oil extractor, add 6 times the amount (V / W) of distilled water, boil, extract by steam distillation for 5 hours, and extract from the volatile oil extractor Separating the volatile oil part from the distillate to obtain Rhododendron essential oil; the extracted medicinal residue and water extract were filtered through gauze, the filtrate was centrifuged at 9000 rpm for 5 minutes, the supernatant was collected, freeze-dried, and loose freeze-dried powder;

[0063] (3) Use the macroporous resin to separate and purify the active ingredients of rhododendron from the freeze-dried powder obtained above, weigh the freeze-dried powder, add 4 times the amount of distilled water (V / W),...

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Abstract

The invention belongs to the field of plant extracts and the fields of dye lightening and printing and dyeing, and particularly relates to rhododendron simsii antibacterial plant dye emulsion, a preparation method and application in textile dyeing. Rhododendron simsii essential oil, a rhododendron simsii flavonoid component and a polyphenol component are respectively obtained by taking rhododendron simsii as a raw material and adopting an integrated extraction and separation method combining steam distillation with macroporous resin purification. The rhododendron simsii essential oil and the flavonoid component are dissolved in a composite dispersant of ethyl acetate and soybean oil to form an oil phase, the polyphenol component is dissolved in distilled water to form a water phase, the water phase and an oil phase are mixed to prepare an oil-in-water emulsion, then a cotton fabric is dyed in a direct dyeing or pre-mordanting mode, the dyed fabric is bright in color and good in firmness, and the dyed fabric has good antibacterial activity on staphylococcus aureus, escherichia coli and candida albicans. The invention solves the problem of comprehensive development of available rhododendron simsii resources, and provides an ecological, healthy and environment-friendly vegetable dye and application thereof in dyeing.

Description

technical field [0001] The invention belongs to the fields of plant extracts, light chemical dyes and printing and dyeing, and specifically relates to a rhododendron antibacterial plant dye emulsion, a preparation method and an application in textile dyeing. Background technique [0002] Rhododendron is an evergreen or deciduous shrub of Rhododendronaceae and Rhododendron, and is one of the ten traditional famous flowers in my country. A large area of ​​greening rhododendrons produces new greening waste after the flowering period, causing a huge waste of urban ecological resources. If Rhododendron can be developed and utilized reasonably, its potential economic value will be further brought into play. Rhododendron extract has the function of dyeing, and its effect has not been taken seriously. In fact, it is a natural plant dye. Compared with traditional synthetic dyes, the outstanding advantages of plant dyes are mainly: natural color, renewable raw materials, easy biodeg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00C09B67/20D06P1/34D06P3/60
CPCC09B61/00C09B67/0066D06P1/34D06P3/60Y02A50/30
Inventor 陈晓源范祯通
Owner 长乐联丰染整有限公司
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