CN109881500B - Textile fabric without fluorescent whitening agent and preparation method thereof - Google Patents
Textile fabric without fluorescent whitening agent and preparation method thereof Download PDFInfo
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- CN109881500B CN109881500B CN201910164766.6A CN201910164766A CN109881500B CN 109881500 B CN109881500 B CN 109881500B CN 201910164766 A CN201910164766 A CN 201910164766A CN 109881500 B CN109881500 B CN 109881500B
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Abstract
The invention belongs to the field of textiles, and particularly relates to a textile fabric free of fluorescent whitening agent and a preparation method thereof. The fabric is made of a cloth bottom and dye, wherein the dye is composed of main materials and auxiliary materials and mainly comprises disperse dye purple-3B, disperse dye blue-ACE, disperse dye red-ACE, sodium hydroxide, hydrogen peroxide and a refining agent. The dyed fabric has good whiteness, firm chromaticity and high safety, can be directly contacted with the skin, and is easy for industrial production.
Description
Technical Field
The invention belongs to the field of textiles, and particularly relates to a textile fabric free of fluorescent whitening agent and a preparation method thereof.
Background
Fluorescent whitening agents (fluorescents) are a fluorescent dye, otherwise known as white dyes, and are also complex organic compounds. Its characteristic is that it can excite incident ray to produce fluorescence, so that the dyed material can obtain the scintillation effect similar to fluorite, and the material seen by naked eye is very white.
The whitening agent has the action principle that invisible ultraviolet light in light is absorbed, visible blue light is emitted, and after the visible blue light is superposed with yellow light emitted by the fabric, white light is formed in a complementary mode, so that the white light emitted by the fabric is increased, and the white fabric can be perceived to be obviously bright and white by naked eyes, namely the brightening effect. Optical brighteners absorb invisible ultraviolet light, (wavelength range of about 60-380nm), converting it to longer wavelength blue or violet visible light, thus compensating for the unwanted yellowish coloration in the substrate, while reflecting more visible light than the original incident wavelength range of 400-600nm, thus making the article appear whiter, brighter, and more vivid. The fluorescent whitening agents of practical value, in addition to absorbing ultraviolet light to give a bluish fluorescence and having a high fluorescence efficiency, must themselves be close to colorless or yellowish, have the characteristics of ordinary dyes, have good affinity to the fabric to be whitened, such as fibers, good solubility or dispersibility and good fastness properties to washing, sun and iron. The whitening properties of optical brighteners are determined by the particular structure of their molecules. Its chromophoric group has a conjugated system in which pi-pi transition can occur, the most common of these systems being benzene rings, naphthalene rings, triazine rings, vinyl groups, five-membered heterocycles and other fused ring systems. The electron system with small conjugation degree generally only absorbs light with short wavelength, and the wavelength of light which can be absorbed is increased along with the increase of the conjugation system, so that electrons are easier to be excited, and the fluorescence efficiency of the whitening agent is higher, thereby meeting the whitening requirement of the fluorescent whitening agent.
A substance having the above-described properties is called a fluorescent agent, and therefore, the fluorescent agent is not a specific substance but a generic name of a class of substances. The emergent light emitted by the fluorescent agent after absorbing the light energy is positioned in a visible light wave band and can present various colors. In daily life, the chemical components of the common fluorescent whitening agent are stilbene derivatives, and the fluorescent whitening agent has the characteristics of absorbing ultraviolet rays and reflecting blue-white phosphorescence. White articles in life can slightly absorb blue light in visible light to cause insufficient blue light, so that the articles are slightly yellow, and the product appearance is influenced. If the fluorescent whitening agent is added into a white product, the fluorescent whitening agent absorbs ultraviolet light and is converted into blue emergent light, the blue emergent light and the yellow of the product are complementary colors, and the product can be whitened by naked eyes, which is the reason for adding the fluorescent whitening agent by manufacturers.
the fluorescent whitening agent has been applied in the field of textile industry for nearly 70 years, and is favored by dyeing and finishing owners and consumers due to the special whitening and brightening effects on textile fibers, at present, no corresponding technology has been provided for replacing fluorescent whitening agents, and some products in the aspect are considered to replace the fluorescent whitening agents in a bleaching mode, for example, the whiteness requirements of fabrics are met through multiple bleaching of chlorine bleaching and oxygen bleaching, but the fibers are easily damaged by transitional bleaching, so that the strength of clothes is reduced when the clothes are worn, the textile fibers have three types of cellulose fibers, protein fibers and synthetic fibers, the application of the fluorescent whitening agents on textiles has requirements, and at least the following 5 requirements are met, namely, the fluorescent whitening agents have no damage to the fibers and better bonding and combining with the fibers, the fluorescent whitening agents have better water solubility, the chemical stability, the fluorescent whitening agents have better uniform whitening property, the fluorescent whitening agents are harmless to the environment and the like, the fluorescent whitening agents applied in the textile industry mainly comprise a hexamine type, a diphenylethylene bis-triazine type, a diphenylethylene-based on the chemical whitening effect type, and a benzpyroline type are selected according to the use of a benzpyroline type.
The fluorescent agent is not easy to degrade after being absorbed by a human body, and once being combined with protein in the human body, the fluorescent agent can be discharged out of the body only through liver decomposition. According to medical clinical experiments, the fluorescent agent can cause cell mutation and can become a potential carcinogenic factor.
The Chinese patent application CN102828391A discloses a textile brightener, but the textile brightener prepared by the textile brightener contains fluorescent agent and dye, and cannot be used safely.
Disclosure of Invention
In order to solve the technical problems, the invention provides a textile dye without a fluorescent whitening agent and application thereof. The fabric made of the dye has good whitening effect, is safe, can be in direct contact with skin, and is easy for industrial production.
In order to achieve the purpose, the invention provides the following technical scheme:
a textile fabric free of fluorescent whitening agent comprises a cloth substrate and a dye, wherein the dye comprises the following components: disperse dye purple-3B, sodium hydroxide, hydrogen peroxide and refining agent.
Preferably, the components are used in the following amounts in terms of concentration (o.w.f.): 0.001 to 0.015 percent of disperse dye purple-3B, 1 to 8 percent of sodium hydroxide, 3 to 8 percent of hydrogen peroxide and 0.5 to 2 percent of refining agent.
Preferably, the dye further comprises an auxiliary material: one or two of disperse dye blue-ACE and disperse dye red-ACE.
Preferably, the amount of the auxiliary materials is, in terms of concentration (o.w.f): 0.0005 to 0.01 percent of disperse dye blue-ACE, and 0.0005 to 0.01 percent of disperse dye red-ACE.
Preferably, the refining agent is a nonionic or anionic active agent complex;
preferably, the nonionic active agent complex is any one of sorbitan monooleate, fatty alcohol-polyoxyethylene ether or sodium alginate propylene glycol ester;
preferably, the anionic surfactant complex is a lignosulfonate or sodium dodecylbenzenesulfonate.
Preferably, the cloth bottom is any one of polyester fiber, polyester/cotton blend and cotton fiber.
The invention also aims to provide a preparation method of the textile fabric, which comprises the following steps:
(1) the cloth bottom is pretreated, and a refining agent, sodium hydroxide, hydrogen peroxide and dye are sequentially added, gradually heated and kept warm.
(2) Washing with water, and adjusting the pH value to be neutral to obtain a semi-finished product;
(3) and (4) carrying out high-temperature setting on the semi-finished product to obtain the dyed fabric.
Preferably, in the step (1), the temperature for heat preservation is 100-130 ℃, and the time for heat preservation is 30-50 minutes.
Preferably, in step (2), the reagent used for adjusting the pH value is 1-2g/L glacial acetic acid or citric acid.
Preferably, in the step (2), the water washing is carried out at 60-100 ℃ and the temperature is kept for 10-20 minutes.
Preferably, in step (3), the temperature range of the high temperature is: 180-195 ℃.
Compared with the prior art, the invention has the following advantages:
(1) the invention adopts the active agent complex as the refining agent, so that the dyed cloth has good color fastness, good whitening effect and high safety;
(2) the color light can be conveniently adjusted by adjusting the proportion of different dyes;
(3) the cloth prepared by the method does not contain a fluorescent whitening agent, is safer, can be used for preparing textiles which directly contact with skin, such as automobile seats, children carriages, toys, ready-made clothes and the like, and is lower in cost.
Detailed Description
Example 1 (dye formula: disperse dye purple-3B, sodium hydroxide, hydrogen peroxide, refining agent)
(1) Pretreating a polyester fiber cloth bottom, placing the polyester fiber cloth bottom in a water bath, sequentially adding 1% of fatty alcohol-polyoxyethylene ether, 4% of sodium hydroxide, 5% of hydrogen peroxide and 0.01% of disperse dye purple-3B dye according to the concentration (o.w.f), gradually heating to 120 ℃, and preserving heat for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Example 2
(1) Pretreating a polyester/cotton blended fabric substrate, placing the polyester/cotton blended fabric substrate in a water bath, sequentially adding 0.5% of lignosulfonate, 1% of sodium hydroxide, 3% of hydrogen peroxide and 0.001% of disperse dye purple-3B dye according to the concentration (o.w.f), gradually heating to 100 ℃, and preserving heat for 30 minutes.
(2) Washing with water at 60 deg.C, maintaining the temperature for 10 min, and adjusting pH to neutral with 1g/L citric acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 180 ℃ to obtain the dyed fabric.
Example 3
(1) Pretreating a cotton fiber cloth substrate, placing the cotton fiber cloth substrate in a water bath, sequentially adding 2% of sodium alginate propylene glycol ester, 8% of sodium hydroxide, 8% of hydrogen peroxide and 0.015% of disperse dye purple-3B dye according to the concentration (o.w.f), gradually heating to 130 ℃, and keeping the temperature for 50 minutes.
(2) Washing with water at 100 deg.C, maintaining the temperature for 20 min, and adjusting pH to neutral with 2g/L citric acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 195 ℃ to obtain the dyed fabric.
Example 4
(1) Pretreating a polyester fiber cloth substrate, placing the polyester fiber cloth substrate in a water bath, sequentially adding 1% of fatty alcohol-polyoxyethylene ether, 4% of sodium hydroxide, 5% of hydrogen peroxide, 0.01% of disperse dye purple-3B dye and 0.0005% of disperse dye blue-ACE according to the concentration (o.w.f), gradually heating to 120 ℃, and preserving heat for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Example 5
(1) Pretreating a polyester fiber cloth substrate, sequentially adding 1% of sodium dodecyl benzene sulfonate, 4% of sodium hydroxide, 5% of hydrogen peroxide, 0.01% of disperse dye purple-3B dye and 0.01% of disperse dye blue-ACE, gradually heating to 120 ℃, and keeping the temperature for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Example 6
(1) Pretreating a polyester fiber cloth substrate, sequentially adding 1% of sorbitan monooleate, 4% of sodium hydroxide, 5% of hydrogen peroxide, 0.01% of disperse dye purple-3B dye and 0.0005% of disperse dye red-ACE, gradually heating to 120 ℃, and keeping the temperature for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Example 7
(1) Pretreating a polyester fiber cloth substrate, sequentially adding 1% of fatty alcohol-polyoxyethylene ether, 4% of sodium hydroxide, 5% of hydrogen peroxide, 0.01% of disperse dye purple-3B dye and 0.01% of disperse dye red-ACE, gradually heating to 120 ℃, and keeping the temperature for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Example 8
(1) Pretreating a polyester fiber cloth substrate, sequentially adding 1% of sorbitan monooleate, 4% of sodium hydroxide, 5% of hydrogen peroxide, 0.01% of disperse dye purple-3B dye, 0.0005% of disperse dye blue-ACE and 0.0005% of disperse dye red-ACE, gradually heating to 120 ℃ and preserving heat for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Example 9
(1) Pretreating a polyester fiber cloth substrate, sequentially adding 1% of nonionic active agent complex, 4% of sodium hydroxide, 5% of hydrogen peroxide, 0.01% of disperse dye purple-3B dye, 0.0005% of disperse dye blue-ACE and 0.01% of disperse dye red-ACE, gradually heating to 120 ℃, and keeping the temperature for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Comparative example 1 (different from example 1 in formulation, other disperse dyes were added)
(1) Pretreating a polyester fiber cloth substrate, sequentially adding 1% of fatty alcohol-polyoxyethylene ether, 4% of sodium hydroxide, 5% of hydrogen peroxide and 0.01% of disperse dye orange, gradually heating to 120 ℃, and keeping the temperature for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Comparative example 2 (different amount of dye than in example 1)
(1) Pretreating a polyester fiber cloth bottom, placing the polyester fiber cloth bottom in a water bath, sequentially adding 1% of fatty alcohol-polyoxyethylene ether, 4% of sodium hydroxide, 5% of hydrogen peroxide and 0.02% of disperse dye purple-3B dye according to the concentration (o.w.f), gradually heating to 120 ℃, and preserving heat for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Comparative example 3 (different amount of dye compared to example 8)
(1) Pretreating a polyester fiber cloth substrate, sequentially adding 1% of sorbitan monooleate, 4% of sodium hydroxide, 5% of hydrogen peroxide, 0.01% of disperse dye purple-3B dye, 0.02% of disperse dye blue-ACE and 0.0005% of disperse dye red-ACE, gradually heating to 120 ℃, and keeping the temperature for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Comparative example 4 (different formulation from example 1, no refining agent)
(1) Pretreating a polyester fiber cloth substrate, sequentially adding 4% of sodium hydroxide, 5% of hydrogen peroxide, 0.01% of disperse dye purple-3B dye, 0.0005% of disperse dye blue-ACE and 0.0005% of disperse dye red-ACE, gradually heating to 120 ℃, and keeping the temperature for 40 minutes.
(2) Washing with water at 80 deg.C, maintaining the temperature for 15 min, and adjusting pH to neutral with 1.5g/L glacial acetic acid to obtain semi-finished product;
(3) and (4) shaping the semi-finished product at a high temperature of 185 ℃ to obtain the dyed fabric.
Examples of effects
The fabrics prepared in the above examples and comparative examples were tested for whiteness using a textile fabric whiteness tester according to the standard jjjg 512-2002 "whiteness meter test procedures", and tested according to ISO 105-B02-2014 "textile color fastness test part B02: color fastness to artificial light: xenon arc test and ISO 105-C06-2010 textile colorfastness test part C06: color fastness to household and commercial washing the color fastness to light and to washing was determined as specified in Table 1.
TABLE 1 whiteness and color fastness test results
Therefore, the cloth prepared by the method has good whiteness, no fluorescence after being tested by a UV lamp, and good light fastness and washing fastness.
The above detailed description is specific to one possible embodiment of the present invention, and the embodiment is not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention should be included in the technical scope of the present invention.
Claims (7)
1. A textile fabric free of fluorescent whitening agent comprises a cloth bottom and a dye, wherein the dye comprises the following components: disperse dye purple-3B, sodium hydroxide, hydrogen peroxide and refining agent; the dosage of each component is as follows according to o.w.f: 0.001 to 0.015 percent of disperse dye purple-3B, 1 to 8 percent of sodium hydroxide, 3 to 8 percent of hydrogen peroxide and 0.5 to 2 percent of refining agent; the cloth bottom is any one of a polyester fiber cloth bottom, a polyester/cotton blended cloth bottom and a cotton fiber cloth bottom; the refining agent is a nonionic or anionic surfactant complex.
2. A textile fabric free of fluorescent whitening agent comprises cloth bottom and dye, wherein the dye comprises the following components in terms of o.w.f.: 0.001 to 0.015 percent of disperse dye purple-3B, 1 to 8 percent of sodium hydroxide, 3 to 8 percent of hydrogen peroxide, 0.5 to 2 percent of refining agent and auxiliary materials; the auxiliary materials are as follows: one or two of 0.0005 to 0.01 percent of disperse dye blue-ACE and 0.0005 to 0.01 percent of disperse dye red-ACE; the cloth bottom is any one of a polyester fiber cloth bottom, a polyester/cotton blended cloth bottom and a cotton fiber cloth bottom; the refining agent is a nonionic or anionic surfactant complex.
3. A method of making a textile fabric as claimed in claim 1, comprising the steps of:
(1) pretreating a cloth bottom, sequentially adding a refining agent, sodium hydroxide, hydrogen peroxide and disperse dye purple-3B, gradually heating and preserving heat;
(2) washing with water, and adjusting the pH value to be neutral to obtain a semi-finished product;
(3) and (4) carrying out high-temperature setting on the semi-finished product to obtain the dyed fabric.
4. A method of producing a textile fabric according to claim 3, wherein in step (1), the temperature of the heat-retention is 100 to 130 ℃ and the time of the heat-retention is 30 to 50 minutes.
5. A process for the preparation of a textile fabric as claimed in claim 3 wherein in step (2) the agent used to adjust the pH is glacial acetic acid or citric acid in an amount of 1 to 2 g/L.
6. A process for the production of a textile fabric as claimed in claim 3 wherein in step (2) the washing is carried out at 60-100 ℃ and the incubation is for 10-20 minutes.
7. A method of producing a textile fabric as claimed in claim 3 wherein the elevated temperature in step (3) is in the range of: 180-195 ℃.
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| CN111593564A (en) * | 2020-06-18 | 2020-08-28 | 鲁丰织染有限公司 | Water-absorbing, non-fluorescent and formaldehyde-free non-ironing fabric for infants |
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| AU2003235517A1 (en) * | 2002-05-16 | 2003-12-02 | The Procter And Gamble Company | Fabric conditioning composition comprising agent for enhancing the appearance of the rinse solution |
| AR049538A1 (en) * | 2004-06-29 | 2006-08-09 | Procter & Gamble | DETERGENT COMPOSITIONS FOR LAUNDRY WITH EFFICIENT DYING COLOR |
| CN101082155B (en) * | 2007-07-10 | 2010-06-16 | 中国人民解放军总后勤部军需装备研究所 | Dyeing and finishing method for core-spun single woven fabric |
| CN101649560B (en) * | 2009-09-10 | 2011-09-07 | 浙江富润印染有限公司 | Knitted fabric printing and dyeing process with special effect |
| US8470760B2 (en) * | 2010-05-28 | 2013-06-25 | Milliken 7 Company | Colored speckles for use in granular detergents |
| US20120101018A1 (en) * | 2010-10-22 | 2012-04-26 | Gregory Scot Miracle | Bis-azo colorants for use as bluing agents |
| CN102828391B (en) * | 2012-08-31 | 2014-10-22 | 江苏高博智融科技有限公司 | Brightening agent for weaving |
| CN103741508A (en) * | 2013-12-04 | 2014-04-23 | 常熟市福亿印花炼染有限公司 | Printing and dyeing process of knitted fabric |
| CN108396546A (en) * | 2018-02-24 | 2018-08-14 | 鲁丰织染有限公司 | The high whiteness pure cotton fabric of blue light and its preparation process |
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