CN104480756A - Method for dyeing cellulosic fiber fabric by sorghum husk pigment - Google Patents
Method for dyeing cellulosic fiber fabric by sorghum husk pigment Download PDFInfo
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- CN104480756A CN104480756A CN201410816452.7A CN201410816452A CN104480756A CN 104480756 A CN104480756 A CN 104480756A CN 201410816452 A CN201410816452 A CN 201410816452A CN 104480756 A CN104480756 A CN 104480756A
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Abstract
A method for dyeing cellulosic fiber fabric by sorghum husk pigment is characterized in that pre-dyeingpretreatment is performed on the cellulosic fiber fabric by a biological material, namely, chitosan, and the sorghum husk pigment extracted with an ethanol/aqueous solution is adopted for dyeing. The method comprises main steps as follows: the cellulosic fiber fabric is treated with warm water, chitosan is pretreated, and the cellulosic fiber fabric is dyed by sorghum husk pigment. By means of the method, the problems of difficulty in dyeing, low probability of dyeing of dark color, poor dyefastness and the like in the process that the cellulosic fiber fabric is dyed by the sorghum husk pigment are solved. The method is easy and simple to operate and environment-friendly.
Description
Technical field
The present invention relates to the application of sorghum husk pigment, particularly relate to the method for sorghum husk pigment dye cellulose base fiber fabric.
Background technology
Sorghum husk is the accessory substance of world main cereal crop Chinese sorghum, and China produces about 2,000,000 tons per year, aboundresources.Sorghum husk has natural colored, containing a large amount of haematochrome.At present, sorghum husk is mainly used as animal feed, cultivation mushroom etc., is even directly burned, causes the significant wastage of resource.From sorghum husk, extract haematochrome be used as dyestuff, the painted surcharge that can greatly improve sorghum husk is carried out to textiles.Main component due to sorghum husk pigment is aldehydes matter, easily negative electricity is showed in water, be approximately weak acid dye, good with the affinity of protein fibre, and contaminate difficulty, not easily dye dark color on existing in the process of upper dye cellulose fibre and the problems such as dyefastness difference.
Chitosan molecule is similar to cellulosic structure, good with the compatibility of cellulose fibre, can dissolve in fibrous inside, with active group with hydrogen bond or covalent bonds.Shitosan is cationic nitrogenous type polymer, and have no side effect, good biocompatibility, biodegradable.Adopt shitosan to carry out preliminary treatment to COTTON FABRIC, the affinity of sorghum husk pigment to cellulose fibre can be improved, improve the dyeing capacity of dyestuff, and preliminary treatment environmental protection.
Summary of the invention
The present invention adopts shitosan to carry out preliminary treatment to cellulose base fiber fabric, to solve the problems such as the dark and dyefastness of dyeing difficulty, not easily dye sorghum husk pigment contaminated in cellulose base fiber fabric process is poor, for sorghum husk pigment dyeing cellulose base fiber fabric provides a kind of method.The feature of the method utilizes biomaterial shitosan to contaminate front preliminary treatment to cellulose base fiber fabric, and then adopt the sorghum husk pigment of ethanol/water solvent extraction to dye, concrete steps are as follows:
The first step: sorghum husk pigment extracts
Take ethanol/water solution as solvent, carry out pigment extraction to the sorghum husk powder of drying, described ethanol/water solution mass percent is 70-80%, pH is 2-3, and liquid-solid ratio is 40-50: 1, Extracting temperature 75-85 DEG C, and extraction time 90-120min extracts 2-3 time.Gained sorghum husk pigment solution, with after 200 object strainer filterings, adopts high speed freezing centrifuge centrifugal filtrate, rotating speed 6000-8000r/min, centrifugation time 20-40min.By isolated supernatant evaporation and concentration, be then placed in 80-90 DEG C of baking oven and dry, obtain bronzing block, pulverize through high speed disintegrator and obtain bronzing sorghum husk pigment powder.
Second step: warm water process cellulose base fiber fabric
The warm water putting into 40-60 DEG C through cellulose base fiber fabric to be dyed soaks 10min, takes out and extract excessive moisture after making cellulose base fiber fabric fully wetting.
3rd step: shitosan preliminary treatment
Adopt chitosan solution to carry out preliminary treatment to the cellulose base fiber fabric after wetting, the concentration of described shitosan is 5-8g/L, and pH value is 4-5, bath raio 20-30: 1, treatment temperature 60-70 DEG C of pretreatment time 30min.Adopt watery hydrochloric acid adjust ph, adopt Rapid normal temperature oscillatory type sample dyeing machine to carry out preliminary treatment to fabric.
4th step: sorghum husk pigment dyeing
The sorghum husk powder pigment solution adopting step one to prepare dyes to the pretreated cellulose base fiber fabric of shitosan, it is characterized in that described sorghum husk pigment concentration is 3-6g/L, pH value is 6-7; bath raio 30-50: 1; dyeing temperature 60-80 DEG C, and insulation 40-60min, takes out fabric; washing, naturally dries.
Adopt the cellulose fibre of the inventive method dyeing as COTTON FABRIC with not by compared with the COTTON FABRIC of shitosan process, color depth increases, and COLOR FASTNESS improves, as table 1, shown in table 2.
The preliminary treatment of table 1 shitosan is on the impact of sorghum husk pigment dyeing COTTON FABRIC color feature value
After the preliminary treatment of table 2 shitosan, the COLOR FASTNESS of sorghum husk pigment dyeing COTTON FABRIC and untreated samples contrast
Specific embodiment
Specific embodiment 1: a kind of method of sorghum husk pigment dyeing cellulose base fiber fabric
Utilize biomaterial shitosan to contaminate front preliminary treatment to cellulose base fiber fabric, then adopt the sorghum husk pigment of ethanol/water solvent extraction to dye, concrete steps are as follows:
The first step: sorghum husk pigment extracts
Take ethanol/water solution as solvent, carry out pigment extraction to the sorghum husk powder of drying, described ethanol/water solution mass percent is 75%, pH is 2, and liquid-solid ratio is 40: 1, Extracting temperature 85 DEG C, extraction time 90min, extracts 2 times.Gained sorghum husk pigment solution, with after 200 object strainer filterings, adopts high speed freezing centrifuge centrifugal filtrate, rotating speed 6000r/min, centrifugation time 40min.By isolated supernatant evaporation and concentration, be then placed in 90 DEG C of baking ovens and dry, obtain bronzing block, pulverize through high speed disintegrator and obtain bronzing sorghum husk pigment powder.
Second step: warm water process cellulose base fiber fabric
The warm water putting into 40 DEG C through cellulose base fiber fabric to be dyed soaks 10min, takes out and extract excessive moisture after making cellulose base fiber fabric fully wetting.
3rd step: shitosan preliminary treatment
Adopt chitosan solution to carry out preliminary treatment to the cellulose base fiber fabric after wetting, the concentration of described shitosan is 5g/L, and pH value is 4, bath raio 20: 1, treatment temperature 60 DEG C, pretreatment time 30min.Adopt watery hydrochloric acid adjust ph, adopt Rapid normal temperature oscillatory type sample dyeing machine to carry out preliminary treatment to fabric.
4th step: sorghum husk pigment dyeing
The sorghum husk powder pigment solution adopting step one to prepare dyes to the pretreated cellulose base fiber fabric of shitosan, and it is characterized in that described sorghum husk pigment concentration is 3g/L, pH value is 6; bath raio 30: 1, dyeing temperature 60 DEG C, and insulation 60min; take out fabric, washing, dries naturally.
Specific embodiment 2: a kind of method of sorghum husk pigment dyeing cellulose base fiber fabric
Utilize biomaterial shitosan to contaminate front preliminary treatment to cellulose base fiber fabric, then adopt the sorghum husk pigment of ethanol/water solvent extraction to dye, concrete steps are as follows:
The first step: sorghum husk pigment extracts
Take ethanol/water solution as solvent, carry out pigment extraction to the sorghum husk powder of drying, described ethanol/water solution mass percent is 80%, pH is 3, and liquid-solid ratio is 40: 1, Extracting temperature 75 DEG C, extraction time 90min, extracts 3 times.Gained sorghum husk pigment solution, with after 200 object strainer filterings, adopts high speed freezing centrifuge centrifugal filtrate, rotating speed 8000r/min, centrifugation time 20min.By isolated supernatant evaporation and concentration, be then placed in 90 DEG C of baking ovens and dry, obtain bronzing block, pulverize through high speed disintegrator and obtain bronzing sorghum husk pigment powder.
Second step: warm water process cellulose base fiber fabric
The warm water putting into 60 DEG C through cellulose base fiber fabric to be dyed soaks 10min, takes out and extract excessive moisture after making cellulose base fiber fabric fully wetting.
3rd step: shitosan preliminary treatment
Adopt chitosan solution to carry out preliminary treatment to the cellulose base fiber fabric after wetting, the concentration of described shitosan is 8g/L, and pH value is 5, bath raio 30: 1, treatment temperature 70 DEG C of pretreatment time 30min.Adopt watery hydrochloric acid adjust ph, adopt Rapid normal temperature oscillatory type sample dyeing machine to carry out preliminary treatment to fabric.
4th step: sorghum husk pigment dyeing
The sorghum husk powder pigment solution adopting step one to prepare dyes to the pretreated cellulose base fiber fabric of shitosan, and it is characterized in that described sorghum husk pigment concentration is 6g/L, pH value is 7; bath raio 40: 1, dyeing temperature 80 DEG C, and insulation 40min; take out fabric, washing, dries naturally.
Claims (2)
1. a method for jowar shell pigment dyeing cellulosic fibre fabric, is characterized in that utilizing biomaterial shitosan to contaminate front preliminary treatment to cellulose base fiber fabric, and then adopt the sorghum husk pigment of ethanol/water solvent extraction to dye, concrete steps are as follows:
The first step: sorghum husk pigment extracts
Take ethanol/water solution as solvent, carry out pigment extraction to the sorghum husk powder of drying, described ethanol/water solution mass percent is 70-80%, pH is 2-3, and liquid-solid ratio is 40-50: 1, Extracting temperature 75-85 DEG C, and extraction time 90-120min extracts 2-3 time.Gained sorghum husk pigment solution, with after 200 object strainer filterings, adopts high speed freezing centrifuge centrifugal filtrate, rotating speed 6000-8000r/min, centrifugation time 20-40min.By isolated supernatant evaporation and concentration, be then placed in 80-90 DEG C of baking oven and dry, obtain bronzing block, pulverize through high speed disintegrator and obtain bronzing sorghum husk pigment powder.
Second step: warm water process cellulose base fiber fabric
The warm water putting into 40-60 DEG C through cellulose base fiber fabric to be dyed soaks 10min, takes out and extract excessive moisture after making cellulose base fiber fabric fully wetting.
3rd step: shitosan preliminary treatment
Adopt chitosan solution to carry out preliminary treatment to the cellulose base fiber fabric after wetting, the concentration of described shitosan is 5-8g/L, and pH value is 4-5, bath raio 20-30: 1, treatment temperature 60-70 DEG C of pretreatment time 30min.Adopt watery hydrochloric acid adjust ph, adopt Rapid normal temperature oscillatory type sample dyeing machine to carry out preliminary treatment to fabric.
4th step: sorghum husk pigment dyeing
The sorghum husk powder pigment solution adopting step one to prepare dyes to the pretreated cellulose base fiber fabric of shitosan, it is characterized in that described sorghum husk pigment concentration is 3-6g/L, pH value is 6-7; bath raio 30-50: 1; dyeing temperature 60-80 DEG C, and insulation 40-60min, takes out fabric; washing, naturally dries.
2. the method for a kind of jowar shell pigment dyeing cellulosic fibre fabric according to claim 1, described cellulose base fiber fabric comprises COTTON FABRIC, viscose fabric etc.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105133401A (en) * | 2015-08-12 | 2015-12-09 | 江苏工程职业技术学院 | Dandelion fiber non-dye dyeing method |
| CN107418247A (en) * | 2017-07-26 | 2017-12-01 | 罗莱生活科技股份有限公司 | A kind of sorghum husk dyestuff and its production and use |
| CN108193297A (en) * | 2018-01-08 | 2018-06-22 | 罗莱生活科技股份有限公司 | A kind of sorghum shell polyphenol coloured fibre and preparation method thereof |
| CN109235092A (en) * | 2018-08-10 | 2019-01-18 | 苏州市天翱特种织绣有限公司 | A kind of preparation method of easy dyeing fixation fabric |
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| CN108193297A (en) * | 2018-01-08 | 2018-06-22 | 罗莱生活科技股份有限公司 | A kind of sorghum shell polyphenol coloured fibre and preparation method thereof |
| CN109235092A (en) * | 2018-08-10 | 2019-01-18 | 苏州市天翱特种织绣有限公司 | A kind of preparation method of easy dyeing fixation fabric |
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