Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method and application of herba houttuyniae natural dye

A technology for natural dyes and Houttuynia cordata, applied to natural dyes and their application fields, can solve problems such as no reports, and achieve the effects of improving body immunity, good compatibility, and increasing chromatography.

Inactive Publication Date: 2016-07-27
CHIFENG ZHAOWUDA CASHMERE PROD
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But about the preparation of Houttuynia cordata natural dye and dyeing method thereof, there is no report in the prior art at present

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method and application of herba houttuyniae natural dye
  • Preparation method and application of herba houttuyniae natural dye
  • Preparation method and application of herba houttuyniae natural dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: Weigh 5 g of Houttuynia cordata, dry and pulverize after biological pretreatment, use 60 times of water (adjust the pH to about 9 with sodium hydroxide), heat up to 100°C, keep warm for 2 hours, and then filter. The filter residue continues to repeat the above operation with 30 times of water (adjust the pH to about 9 with sodium hydroxide), combine the two extracts, and concentrate to 300mL, which is the natural dye extract of Houttuynia cordata. Concentrate, solidify, and pulverize to obtain powdery natural dyes.

[0014] Using the same coal dyeing process (bath ratio 1:25, coal dyeing agent 4g / L, 70°C for 30min, 90°C for 1h, 80°C for 30min), under the condition of using ferrous sulfate as coal dyeing agent, the above powder Dye (to fabric weight 8% O.w.f), respectively dye cashmere, wool, silk and modified cotton fabric (cotton fabric does not need coal dyeing agent), can obtain brown, yellow-brown fabric, and the fabric color fastness is good . The spec...

Embodiment 2

[0016] Example 2: Weigh 5 g of Houttuynia cordata, dry and pulverize it after biological pretreatment, use 70 times (use sodium carbonate to adjust the pH to about 8), heat up to 95° C., keep warm for 100 minutes, and then filter. The filter residue continues to repeat the above operation with 20 times of water (sodium carbonate adjusts the pH to about 8), combines the two extracts, and concentrates to 300mL, which is the natural dye extract of Houttuynia cordata. Concentrate, solidify, and pulverize to obtain powdery natural dyes.

[0017] Using the same coal dyeing process (bath ratio 1:40, coal dyeing agent 4g / L, 90°C for 1h, 70°C for 30min), under the condition of using aluminum sulfate as the coal dyeing agent, use the above powder dyes (the weight of the fabric is 5 %O.w.f), respectively dyeing cashmere, wool, silk and modified cotton fabrics (cotton fabrics do not need coal dyes), yellowish brown, light brown fabrics can be obtained, and the fabric color fastness is goo...

Embodiment 3

[0019] Example 3: Weigh 5 g of Houttuynia cordata, dry and pulverize it after biological pretreatment, use 70 times of 50% ethanol (adjust the pH to about 10 with ethylenediamine), heat up to 70° C., keep warm for 2 hours, and then filter. The filter residue continued to repeat the above operation with 30 times of 50% ethanol (ethylenediamine pH to about 10) solution, combined the two extracts, concentrated to 300mL, and obtained Houttuynia natural dye extract. Concentrate, solidify, and pulverize to obtain powdery natural dyes.

[0020] Using the pre-mordanized coal dyeing process (bath ratio 1:30, coal dyeing agent 2g / L, 70°C for 30min, 95°C for 1h, 70°C for 30min), under the condition of using zinc sulfate as the coal dyeing agent, the above powder dye ( The fabric weighs 7% O.w.f), and cashmere, wool, and real silk are dyed respectively to obtain a green fabric with good color fastness. The specific data are as follows (fabric rubbing fastness is measured under the nation...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method and application of herba houttuyniae natural dye.The preparation method includes the steps that firstly, fresh herba houttuyniae is washed with a surfactant, dried and smashed, the smashed herba houttuyniae is added into an extracting solution to be soaked, alkaline matter is added to regulate the pH value and the temperature, and filtering is carried out; the operation in the last step is repeatedly carried out on filter residues; extracting solutions obtained after two times of filtering are mixed to serve as a natural dye stock solution; the dye stock solution is concentrated, solidified and smashed, and the powdery natural dye is obtained.The natural dye can be used for dyeing cotton or silk or wool fabric with different dye mordants under different mordanting process conditions, and the dyed fabric can have various colors such as the coffee color, the yellowish brown color, the light brown color, the yellow color and the green color and has good crockfastness.Application of herba houttuyniae pigment in the dyeing and finishing industry as natural dye is achieved for the first time, and the utilization rate and product value of herba houttuyniae are greatly increased.The extracting process is simple and efficient, and the dyed fabric is colorful, good in wearability and stable in product quality and has broad market prospects.

Description

technical field [0001] The invention belongs to the technical field of natural dyes and applications thereof, and in particular relates to a preparation method and application of Houttuynia cordata natural dyes. Background technique [0002] With the increasing awareness of human environmental protection and the increasing concern for their own health, the harm of some synthetic dyes to human health and the ecological environment has become more and more noticeable. Existing research results have shown that there are more than 20 carcinogenic aromatic amines and more than 100 synthetic dyes that may produce carcinogens, and dozens of dyes are likely to cause skin allergies. As a result, synthetic dyes and the textiles they dye have made consumers suspicious. [0003] Houttuynia cordata (English name HERBAHOUTTUYNIAE) is a herbal medicine included in the Chinese Pharmacopoeia. It mainly grows in the Yangtze River Basin of China. In summer, when the stems and leaves are lush ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00D06P1/34D06P1/673D06P3/04D06P3/14D06P3/60
CPCC09B61/00D06P1/34D06P1/67341D06P3/04D06P3/14D06P3/60
Inventor 姚金波焦建军张朝清李博王乐
Owner CHIFENG ZHAOWUDA CASHMERE PROD