The preparation of chestnut shell natural dye and application thereof
Technical field
The present invention relates to natural dyestuff and Application Areas thereof, particularly relate to a kind of preparation and application thereof of chestnut shell natural dye.
Background technology
Since the eighties in 20th century, along with the continuous enhancing of human environmental consciousness and to the growing interest of self health, the partial synthesis dyestuff is more and more noticeable to the harm that human health and ecotope are produced.Existing result of study shows; there are 23 kinds of carcinogenic aromatic amines, more than 100 synthetic dyestuff might produce carcinogenic substance; more than 20 synthetic dyestuff produce irritated to skin ... and deepening continuously along with science and technology development and dyestuff toxicologic study; so-called environmental protection of present stage or ecological dyestuff; whether also can enter into the ranks of forbidding dyestuff, people are also unknown.Therefore, synthetic dyestuff and painted textiles thereof are suspected the human consumer.Moreover, along with the continuous consumption of petroleum resources on the earth, be becoming tight by day for the raw material problem of synthetic dyestuff.
Natural dyestuff is meant root, leaf, bark, trunk, shell, flower or animal secretions from plant, the mineral substance and extracts that preparation process can not cause environmental pollution; Dyeing back fabric is worn safety, carcinogenic, teratogenesis is arranged unlike some synthetic dyestuff textiles or cause allergic reaction, and natural dyestuff and ecotope consistency is good, biodegradable; Except that the dyeing function, the part natural dyestuff also has the medicinal health-care function.Natural dyestuff is a renewable resources, does not have the exhausted problem of resource, has greatly enriched the dyestuff resource, can cooperatively interact with synthetic dyestuff, learn from other's strong points to offset one's weaknesses, and performance advantage separately, its market outlook will be very wide.
Chinese chestnut, being commonly called as chestnut, is China's special product, have the laudatory title of the king " of " thousand fruits, be a kind of protective foods that people extremely like, be rich in sugar, starch, protein, fat and multivitamin (vitamins C, VITMAIN B1) and mineral substance (phosphorus, calcium, iron etc.).The traditional Chinese medical science thinks that chestnut distinguishes the flavor of sweet warm in naturely, nontoxic, has that tonifying spleen is good for the stomach, the effect of the strong muscle of kidney tonifying.Along with deepening continuously of Chinese chestnut deep processing, chestnut shell quantity sharply increases, and the chestnut shell that abandons is countless, and is very unfortunate.Contain Flavonoid substances in the chestnut shell, not only can be used as a kind of natural brown dyestuff textiles is dyeed, also have functions such as antibacterial, ultraviolet radiation preventing.Therefore, extract a kind of brown natural dyestuff and be applied to textile dyeing from chestnut shell, chestnut shell is turned waste into wealth, China is developed a circular economy, building a resource-conserving and environment-friendly society has crucial meaning.
About the preparation and the application thereof of chestnut shell natural dye, have not yet to see report to some extent.
Summary of the invention
The object of the present invention is to provide a kind of preparation and application thereof of chestnut shell natural dye.
The technical solution adopted for the present invention to solve the technical problems is:
One, a kind of preparation of chestnut shell natural dye
The step of this method is as follows:
1) chestnut shell is cleaned, dried, mechanical disintegration joins then in 5~10 times of aqueous solution and soaks, treat that chestnut shell is fully wetting after, add yellow soda ash, the pH of regulator solution is 8~10, is warming up to 95~100 ℃, insulation 60~90min filters; It is 8~10 solution lixiviate that filter residue continues with containing yellow soda ash pH, filters, and merges vat liquor twice, natural dyestuff stoste;
2) the natural dyestuff stoste of extracting is concentrated, get the paste dyestuff;
3) gained paste dyestuff is cured, pulverizes, get Powdered natural dyestuff.
Two, a kind of application of chestnut shell natural dye
1. to protein, Mierocrystalline cellulose, nylon fibre, it is as follows that yarn or fabric carry out the painted step of pre-matchmaker:
1) pollutant is immersed in the water, make it fully wetting, take out then and extract, stand-by;
2) with Fe
2+, Fe
3+, Al
3+, Nd
3+Salt or its two kinds of mixtures as mordant, concentration is 0.1~10% of pollutant weight, under 40~80 ℃ of temperature, bath raio 1: 20~50 is handled 20~40min, cleans;
3) after the above-mentioned processing, put into the chestnut shell dyestuff again and dye, dyeing recipe is: dye strength be pollutant weight 0.1~10%, pH value 3-6, bath raio 1: 20~100,80~100 ℃ of temperature, time 30~90min; Dye completely, water cleans, oven dry.
2. to protein, Mierocrystalline cellulose, nylon fibre, it is as follows that yarn or fabric carry out the painted step of back matchmaker:
1) pollutant is immersed in the water, make it fully wetting, take out then and extract, stand-by;
2) after the above-mentioned processing, put into the chestnut shell dyestuff and dye, dyeing recipe is: dye strength be pollutant weight 0.1~10%, pH value 3-6, bath raio 1: 20~100,80~100 ℃ of temperature, time 30~90min; Dye completely, water cleans;
3) with Fe
2+, Fe
3+, Al
3+, Nd
3+Salt or its two kinds of mixtures as mordant, concentration is 0.1~10% of pollutant weight, under 40~80 ℃ of temperature, bath raio 1: 20~50 is handled 20~40min, cleans oven dry.
The beneficial effect that the present invention has is: the present invention extracts natural dyestuff from discarded chestnut shell, and to protein, Mierocrystalline cellulose, nylon fibre, yarn or fabric dye, and Color is good.Preparation process can not cause environmental pollution; Dyeing back fabric is worn safety, does not have carcinogenic, teratogenesis or causes allergic reaction; Good, biodegradable with the ecotope consistency; And the chestnut shell abundant raw material, the dyestuff extraction process is simple, steady quality, and its market outlook will be very wide.
Embodiment
Embodiment 1: the chestnut shell natural dye preparation
Chestnut shell is cleaned, dried, mechanical disintegration.Take by weighing the chestnut shell of a certain amount of pulverizing, with 10 times of water loggings bubble, treat that chestnut shell is fully wetting after, add the yellow soda ash of aequum, regulator solution pH is about 10, is warming up to 100 ℃, insulation 60min after-filtration.It is about 10 solution lixiviate that filter residue continues with containing yellow soda ash pH, filters, and merges vat liquor twice, natural dyestuff stoste; Concentrate, solidify, pulverize, promptly obtain Powdered chestnut shell natural dye.
The pre-mordant dyeing look of embodiment 2 cocoon fibers
1. cocoon fiber is immersed in the water, make it fully wetting.Take out then and extract, stand-by.
2. with the cocoon fiber of above-mentioned processing, join in the copperas solution of 10% (o.w.f) and carry out pre-mordant dyeing, bath raio is 1: 50,60 ℃ of temperature, treatment time 40min; Take out fabric, clean.
3. the chestnut shell dyestuff is made into dye liquor, dye strength is 10% (o.w.f), and the pH value is 4, bath raio 1: 50, and cocoon fiber is under 95 ℃ of temperature, and 90min dyes.Dye completely, water cleans, oven dry.
Mordant dyeing look behind embodiment 3 silk broadcloths
1. silk broadcloth is immersed in the water, make it fully wetting.Take out then and extract, stand-by.
2. the chestnut shell dyestuff is made into dye liquor, dye strength is 1% (o.w.f), and dye liquor pH value is 6, bath raio 1: 20, and silk broadcloth is under 85 ℃ of temperature, and 50min dyes.Dye completely, water cleans.
3. the back fabric that will dye joins and carries out back mordant dyeing processing in the aluminum potassium sulfate solution that contains 3% (o.w.f), and bath raio is 1: 40,80 ℃ of temperature, time 30min.Dye completely, water cleans, oven dry.
Mordant dyeing look behind embodiment 4 wool fabrics
1. wool fabric is immersed in the water, make it fully wetting.Take out then and extract, stand-by.
2. the chestnut shell dyestuff is made into dye liquor, dye strength is 0.2% (o.w.f), and dye liquor pH value is 3, bath raio 1: 100, and wool fabric is under 100 ℃ of temperature, and 30min dyes.Dye completely, water cleans.
3. DYED FABRICS is joined and carry out back mordant dyeing processing in the neodymium chloride solution that contains 1% (o.w.f), bath raio is 1: 30,40 ℃ of temperature, time 30min.Take out fabric after disposing, clean.
The pre-mordant dyeing look of embodiment 5 cottons
1. cotton is immersed in the water, make it fully wetting.Take out then and extract, stand-by.
2. with the cotton of above-mentioned processing, join in the copperas solution of 0.2% (o.w.f) and carry out pre-mordant dyeing, bath raio is 1: 20,60 ℃ of temperature, treatment time 20min; Take out yarn, clean.
3. the chestnut shell dyestuff is made into dye liquor, dye strength is 5% (o.w.f), and dye liquor pH value is 5, bath raio 1: 50,95 ℃ of dyeing 60min.Dye completely, water cleans, oven dry.
Mordant dyeing look behind embodiment 6 sodolins
1. sodolin is immersed in the water, make it fully wetting.Take out then and extract, stand-by.
2. the chestnut shell dyestuff is made into dye liquor, dye strength is 3% (o.w.f), and dye liquor pH value is 4, bath raio 1: 50, and after fabric immerses dye liquor, under 95 ℃ of temperature, dyeing 60min.Dye completely, water cleans.
3. DYED FABRICS joins in 2% (o.w.f) Tai-Ace S 150,3% copperas solution, carries out the back mordant dyeing and handles, and bath raio is 1: 50, and 60 ℃ of temperature are taken out fabric, washing behind the insulation 30min.
Mordant dyeing look behind embodiment 7 nylon fibres
1. nylon fibre is immersed in the water, make it fully wetting.Take out then and extract, stand-by.
2. the chestnut shell dyestuff is made into dye liquor, dye strength is 6% (o.w.f), and dye liquor pH value is 6, bath raio 1: 80, and after fiber immerses dye liquor, under 100 ℃ of temperature, dyeing 60min.Dye completely, water cleans.
3. dyeing back fiber joins in the copperas solution of 5% (o.w.f), carries out the back mordant dyeing and handles, and bath raio is 1: 50, and 50 ℃ of temperature are taken out fabric, washing behind the insulation 30min.