CN104088170A

CN104088170A - Method for dyeing wool by use of natural dyestuff-gardenia yellow

Info

Publication number: CN104088170A
Application number: CN201410347062.XA
Authority: CN
Inventors: 李政; 陈曦
Original assignee: TIANJIN TIANLVJIAN TECHNOLOGY Co Ltd
Current assignee: TIANJIN TIANLVJIAN TECHNOLOGY Co Ltd
Priority date: 2014-07-21
Filing date: 2014-07-21
Publication date: 2014-10-08

Abstract

The invention discloses a method for dyeing wool by use of natural dyestuff-gardenia yellow, belonging to the field of textile printing and dyeing. The method comprises the following steps: (1) tanning wool, namely placing the wool in a 9g/L formaldehyde solution with pH value of 9.5 and reacting at 50 DEG C for 48h, then adjusting the pH value of the solution and continuing to react for 1h, taking the wool out and cleaning for later use; (2) preparing dyeing liquid, namely adding dyestuff, preparing the dyeing liquid according to a bath ratio, then adding NaCl and JFC (fatty alcohol-polyoxyethylene ether), stirring uniformly, and adjusting the pH value; and (3) dyeing and carrying out post treatment, namely performing dip dyeing on the tanned wool in the dyeing liquid, taking out and placing into afterchrome dye bath with pH value of 4.0, treating for 20min at 65 DEG C, taking the wool out, washing off the unfixed dyes and airing. The method adopts an optimized tanning method during tanning, so that the tolerable temperature of the wool is greatly improved, and the wool can be dyed at high temperature without curling.

Description

A kind of method of utilizing natural dye Gardenia Yellow dyeing wool

Technical field

The invention belongs to textile printing and dyeing field, particularly a kind of method of utilizing natural dye Gardenia Yellow dyeing wool.

Background technology

In textile printing and dyeing industry, applied dyestuff mainly be take synthetic dyestuffs as main at present, and in these dyestuffs some itself, its raw materials for production or intermediate etc. belong to hard degradation, or even carcinogen, not only to environment, even for direct labor and consumer, also work the mischief.

Along with the raising of people's living standard, the requirement of environment protection health has also been proposed for textiles.Therefore, natural dye has caused the attention of textile industry again.

The scientists such as Korea S, Korea, Britain, the U.S. have carried out some researchs to dying natural fabric on vegetable colour.In Japan, also set up specially " vegetation is dyed " research institute, application modern science and technology are developed natural dye.India researcher is also doing a lot of work aspect natural dye research, successively developed the dyestuff of making of white poplar and the celestial flower of wind, and to Folium Pruni yarn dyeing line, Babool skin dyes nylon and tealeaves dyeing wool is studied and develops.Deo and Desai dye to COTTON FABRIC with tea.China to the exploitation of natural dye also among positive exploration, the units such as Tianjin University of Technology, Donghua University, Beijing Institute of Clothing Tech, University Of Suzhou, Dalian materialization research institute of the Chinese Academy of Sciences all have researcher being engaged in the dyeing of natural dye for cotton and silk, at present, the exploitation of natural dye and staining technique has been entered to a new stage.

However, most of natural dyes, due to problems such as its COLOR FASTNESS are low, can not be applicable to industrialization.

Gardenia Yellow is from madder wort cape jasmine, to extract a kind of good natural colouring matter of separating, its main component is crocin and the crocetin of carotenoids, be isoprene analog derivative, under neutrality or weak basic condition, be bright-coloured yellow.Gardenia Yellow safety non-toxic, aboundresources, have certain nutrition and pharmacological action, applied in fur dyeing technique, has very positive meaning.

By consulting literatures data, recognizes that the chemical property of Gardenia Yellow is more stable.Through existing document is retrieved, do not find the research that adopts Gardenia Yellow to dye to wool.

Summary of the invention

The object of the invention is to for deficiency of the prior art, a kind of method of utilizing natural dye Gardenia Yellow dyeing wool is provided, it is easy to amplify, and COLOR FASTNESS is good.The present invention utilizes natural dye Gardenia Yellow to dye to wool, and for reducing the use of synthetic dyestuffs, the use of exploitation natural dye provides technical basis.

It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme:

A method of utilizing natural dye Gardenia Yellow dyeing wool, comprises the steps:

(1) tanning wool: pretreated wool is placed in to the formalin of 9g/L, pH9.5, temperature are to react 48h under the condition of 50 ℃, then pH value of solution are adjusted to 7.0, continue reaction 1h, take out, and clean wool with clear water, stand-by;

(2) dye liquor preparation: add Gardenia Yellow dyestuff, by certain bath raio preparation dye liquor, then add NaCl5g/L, JFC0.1g/L, after stirring, regulate pH value;

(3) dyeing and post processing: tanned wool is put into after dye liquor dip-dye, taken out wool, during the rear mordant dyeing that input pH value is 4.0 is bathed, described mordant is aluminum sulfate, consumption is 5%owf, under 65 ℃ of conditions, processes 20min, take out wool, wash away loose colour, dry.

In affiliated step (2), the consumption of Gardenia Yellow dyestuff is 1-10%owf, and bath raio is 1:10-50% preparation dye liquor;

In described step (2), pH value adjustable range is 2.0-9.0;

In described step (3), it is 50-90 ℃ that wool after tanning is put into the temperature that dye liquor contaminates, and immerged time is 10-60min.

Beneficial effect

Compared with prior art, the method of natural dye Gardenia Yellow dyeing wool of utilizing provided by the invention has 2 advantages: first, in the processing tanning stage, adopted a kind of process for tanning of optimization, the tolerable temperature of wool and follow-up dyeing temperature have greatly been improved, can guarantee that wool dyes at higher temperature, curling problem does not occur simultaneously.The second, natural dye Gardenia Yellow is the dyestuff extracting from plant, nontoxic, harmless to human body and environment.It is good that product after this dyeing has level dyeing, and light fastness is high, can be used for textile industry cleaner production.

The specific embodiment:

Unless stated otherwise, in the present invention, technological means used is method known in those skilled in the art.In addition, embodiment is interpreted as illustrative, but not limits the scope of the invention, and the spirit and scope of the invention are only limited by claims.To those skilled in the art, do not deviating under the prerequisite of essence of the present invention and scope, the various changes that the reaction condition in these embodiments is carried out or change also belong to protection scope of the present invention.

The following examples can make the present invention of those skilled in the art comprehend, but do not limit the present invention in any way.

Embodiment 1

It is that the formalin of the 9g/L of 50 ℃ is reacted 48h that pretreated wool is placed in to pH9.5, temperature, then pH value of solution is adjusted to 7.0, continues reaction 1h, takes out, and with clear water, cleans wool, stand-by;

Add 5% (owf) Gardenia Yellow dyestuff, by bath raio 1:30, prepare dye liquor, then add NaCl5g/L, JFC0.1g/L, after stirring, pH value is adjusted to 5.0.

Wool after tanning is put into dye liquor, take out after contaminating 30min at 70 ℃, during the rear mordant dyeing that then drops into pH value 4.0 is bathed, described mordant is aluminum sulfate, and consumption is 5%owf, under 65 ℃ of conditions, processes 20min, takes out and washes away loose colour, dries.

With this understanding, sunlight fastness is 2-3 level, and K/S value is 2.95, and dye-uptake is 88.69%.

Embodiment 2

Add 10% (owf) Gardenia Yellow dyestuff, by bath raio 1:50, prepare dye liquor, then add NaCl5g/L, JFC0.1g/L, after stirring, pH value is adjusted to 9.0.

Wool after tanning is put into dye liquor, take out after dying 10min at 90 ℃, during the rear mordant dyeing that then drops into pH value 4.0 is bathed, described mordant is aluminum sulfate, and consumption is 5%owf, under 65 ℃ of conditions, processes 20min, takes out and washes away loose colour, dries.

With this understanding, sunlight fastness reaches 3 grades, and K/S value is 2.23.

Embodiment 3

The formalin that first pretreated wool is placed in to pH9.5, temperature and is the 9g/L of 50 ℃ is reacted 48h, then pH value of solution is adjusted to 7.0, continues reaction 1h, takes out, and with clear water, cleans wool, stand-by;

Add 1% (owf) Gardenia Yellow dyestuff, by bath raio 1:10, prepare dye liquor, then add NaCl5g/L, JFC0.1g/L, after stirring, pH value is adjusted to 2.0.

Wool after tanning is put into dye liquor, dye 60min and take out at 50 ℃, then drop in the rear mordant dyeing bath of pH value 4.0, described mordant is aluminum sulfate, and consumption is 5%owf, under 65 ℃ of conditions, processes 20min, takes out and washes away loose colour, dries.

With this understanding, sunlight fastness reaches 3 grades, and K/S value is 2.53.

Claims

1. a method of utilizing natural dye Gardenia Yellow dyeing wool, comprises the steps:

2. according to the method for utilizing natural dye Gardenia Yellow dyeing wool described in claims 1, it is characterized in that, in described step (2), Gardenia Yellow dye dosage is 1-10%owf.

3. according to the method for utilizing natural dye Gardenia Yellow dyeing wool described in claims 1, it is characterized in that, in described step (2), by bath raio 1:10-50% preparation dye liquor.

4. according to the method for utilizing natural dye Gardenia Yellow dyeing wool described in claims 1, it is characterized in that, in described step (2), pH value adjustable range is 2.0-9.0.

5. according to the method for utilizing natural dye Gardenia Yellow dyeing wool described in claims 1, it is characterized in that, in described step (3), it is 50-90 ℃ that wool after tanning is put into the temperature that dye liquor contaminates, and immerged time is 10-60min.