CN105648760B - A kind of acid-fast alkali-proof fluorescent whitening agent and preparation method thereof - Google Patents
A kind of acid-fast alkali-proof fluorescent whitening agent and preparation method thereof Download PDFInfo
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
- D06M13/228—Cyclic esters, e.g. lactones
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/325—Amines
- D06M13/335—Amines having an amino group bound to a carbon atom of a six-membered aromatic ring
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/05—Cellulose or derivatives thereof
- D06M15/09—Cellulose ethers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/11—Starch or derivatives thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Abstract
The invention discloses a kind of acid-fast alkali-proof fluorescent whitening agent, in parts by weight, including following components：10 15 parts of coumarin derivative, 4 10 parts of benzo coumarin derivative, 58 parts of menthyl anthranilate, 39 parts of sodium carboxymethylcellulose, 5 10 parts of maltodextrin, 25 parts of nano imvite, 37 parts of guar gum, 12 parts of cosolvent, 0.5 1.5 parts of pH adjusting agent, 59 parts of sodium lignin sulfonate, 0.05 0.1 parts of surfactant, 15 25 parts of deionized water.The invention also discloses the preparation method of the fluorescent whitening agent, it can effectively brighten cotton fabric, and whiteness is stablized, and white can be made to change in the range of a friendship money, and the cotton fabric fastness to weathering and fastness to heat after processing are high.It is easily operated and its preparation method is simple.
Description
Technical field：
The present invention relates to textile auxiliary field, is specifically related to a kind of acid-fast alkali-proof fluorescent whitening agent.
Background technology：
The color and luster and its stability of textile yarn and fabric are one of most important factors for influencing consumer's daily life,
And directly determine the visual effect and added value of product of textile.However, many textile fabrics are deposited due to various factors
On color and luster the defects of, so that its use value is somewhat limited.Especially the most commonly used cotton fabric, without
When crossing working process, because causing serious yellowing phenomenon containing the material such as protein and some natural pigments, therefore, usually
Special working process is carried out to cotton fabric to reach consumer to the requirement in its whiteness.In many processing methods, utilize
It is considered as most direct, effective method that fluorescent whitening agent, which brightens,.
Fluorescent whitening agent is the whiteness of fabric and vividness is improved significantly in the sunlight using optical principle
A kind of chemicals.It can not only reflect visible ray on the fabric, and can absorb sightless ultraviolet and reflect
It is a kind of extremely to become clear beautiful purple fluorescence (wavelength is 430~460nm) to eliminate the yellow light on fabric, fabric is seemed cleaner
In vain.Currently used fluorescent whitening agent mainly has (1) Stilbene-based, for cotton fiber and some synthetic fibers, papermaking, soapmaking
Deng industry, there is blue-fluorescence；(2) coumarin type, has coumarone basic structure, for celluloid, igelite etc.,
With stronger blue-fluorescence；(3) pyrazoline type, for fibers such as wool, polyamide, acrylic fibers, has the glimmering color of green；(4) benzene
And oxygen nitrogen type, for the plastics such as the fibers such as acrylic fibers and polyvinyl chloride, polystyrene, there is red fluorescence；(5) phthalimide
Type, for fibers such as terylene, acrylic fibers, polyamide fibres, has blue-fluorescence.
Most of cotton fabric can carry out the arrangement such as resin or softness in post-processing process.In order to simplify dyeing and finishing work
Skill, reduces waste water, saves the energy, and resin-brighten same bath process is used widely.Resin finishing processing bath is acidity, this is just
It is required that brightening agent must acid resistance.The brightening agent brightened suitable for cotton fabric is not most of alkaline-resisting acidproof, such as brightening agent 4BK, VBL
Deng.When treatment conditions are acid, then cohesion or whiteness degradation can occur.
Chinese patent (201510371617.9) discloses a kind of compound brightening agent, glimmering comprising component (a) anionic
Optical brightener and component (b) cationic polymer, and the weight ratio of the component (a) and the component (b) is 1:100-1:
0.01, it is preferably 1:50-1:0.02.Wherein described anionic fluorescent whitening agent is selected from stilbene biphenyl type fluorescent brightening
Agent, triazine radical amido stilbene type fluorescent whitening agent, two (1,2,3- triazole -2- bases) stilbene type fluorescence increase
White agent, two (benzofuran -2- bases) biphenyl fluorescent brightening agents, 1,3- diphenyl -2- pyrazolines fluorescent whitening agent or coumarin type
The one or more of fluorescent whitening agent；The cationic polymer is cationic cellulose, cation guar gum, cation poly- third
The one or more of acrylamide.The fluorescent whitening agent can improve the utilization rate of anionic fluorescent whitening agent, delay or prevent
Fabric xanthochromia.But its fastness to heat, fastness to weathering are poor, the fabric whiteness after processing is unstable.
The content of the invention：
The object of the present invention is to provide a kind of acid-fast alkali-proof fluorescent whitening agent, it can effectively brighten cotton fabric, and whiteness is steady
It is fixed, white can be made to change in the range of a friendship money, the cotton fabric fastness to weathering and fastness to heat after processing are high.
It is a further object to provide the preparation method of the fluorescent whitening agent.
To achieve the above object, the present invention uses following technical scheme：
A kind of acid-fast alkali-proof fluorescent whitening agent, in parts by weight, including following components：
10-15 parts of coumarin derivative,
4-10 parts of benzo coumarin derivative,
5-8 parts of menthyl anthranilate,
3-9 parts of sodium carboxymethylcellulose,
5-10 parts of maltodextrin,
2-5 parts of nano imvite,
3-7 parts of guar gum,
1-2 parts of cosolvent,
0.5-1.5 parts of pH adjusting agent,
5-9 parts of sodium lignin sulfonate,
0.05-0.1 parts of surfactant,
15-25 parts of deionized water.
As the preferred of above-mentioned technical proposal, a kind of acid-fast alkali-proof fluorescent whitening agent, in parts by weight, including with the following group
Point：
13 parts of coumarin derivative,
10 parts of benzo coumarin derivative,
7.5 parts of menthyl anthranilate,
5 parts of sodium carboxymethylcellulose,
7 parts of maltodextrin,
3 parts of nano imvite,
4.5 parts of guar gum,
2 parts of cosolvent,
1 part of pH adjusting agent,
5 parts of sodium lignin sulfonate,
0.1 part of surfactant,
25 parts of deionized water.
As the preferred of above-mentioned technical proposal, the particle size of the nano imvite is 20-50nm.
As the preferred of above-mentioned technical proposal, the cosolvent is one in urea, caprolactam, the urea containing substituent
Kind or a variety of mixing.
As the preferred of above-mentioned technical proposal, the pH adjusting agent is the mixing of one or both of salicylic acid, citric acid.
As the preferred of above-mentioned technical proposal, the surfactant for alkyl glycosides, aliphatic alcohol polyethenoxy phosphate,
One or more mixing in aliphatic alcohol polyethenoxy carboxylate, alkylbenzenesulfonate.
A kind of preparation method of acid-fast alkali-proof fluorescent whitening agent, comprises the following steps：
(1) by coumarin derivative, benzo coumarin derivative, menthyl anthranilate, maltodextrin, guar gum
It is mixed evenly with deionized water, is warming up to 50-60 DEG C, stirs 2-6h in the state of 5000 revs/min, be cooled to room temperature, obtain
To mixed liquor；
(2) nano imvite and deionized water are mixed evenly, add sodium carboxymethylcellulose, lignin sulfonic acid
Sodium, under the power of 500W, ultrasonic 1-2h, obtains mixed dispersion liquid；
(3) mixed dispersion liquid that the mixed liquor and step (2) obtained step (1) obtains, mixing, adds cosolvent, table
Face activating agent, the ultrasound 4-8h under the power of 1000W, adds pH adjusting agent tune its pH to 6-8, obtains the increasing of acid-fast alkali-proof fluorescence
White agent.
As the preferred of above-mentioned technical proposal, in step (1), the condition of the stirring is：Whipping temp：60 DEG C, stirring
5000 revs/min of rotating speed, mixing time：5h.
As the preferred of above-mentioned technical proposal, in step (1), the dosage of the deionized water is deionized water gross weight
10-20%.
As the preferred of above-mentioned technical proposal, in step (3), the ultrasonic condition is：Ultrasonic power：1000W, ultrasound
Time 7.5h.
The invention has the advantages that：
The present invention is compounded using different types of fluorescent whitening agent, and the fluorescent whitening agent being prepared enters fiber
Sorption and good diffusing, so that the whitening effect of fabric is good, reduce its usage amount, greatly reduce fabric brightening processing
Cost；And the fluorescent whitening agent can be such that white changes in a wider scope, its fastness to weathering and fastness to heat are excellent；
The present invention adds nano imvite in optical brighteners, it is good with the compatibility of fabric fibre, in the work of ultrasound
Under, the active ingredient of brightening agent enters nano imvite between layers so that brightening agent excellent in stability, fabric increase
Bai Xingneng is good, and nano imvite has substantial amounts of active group to react with the hydroxyl on fabric between layers, makes
Fabric washability after must brightening is good.
Embodiment：
In order to be better understood from the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solving
The present invention is released, any restriction will not be formed to the present invention.
Embodiment 1
A kind of acid-fast alkali-proof fluorescent whitening agent, in parts by weight, including following components：
10 parts of coumarin derivative,
4 parts of benzo coumarin derivative,
5 parts of menthyl anthranilate,
3 parts of sodium carboxymethylcellulose,
5 parts of maltodextrin, 2 parts of nano imvite,
3 parts of guar gum, 1 part of cosolvent,
0.5 part of pH adjusting agent, 5 parts of sodium lignin sulfonate,
0.05 part of surfactant, 15 parts of deionized water.
Its preparation method comprises the following steps：
(1) by coumarin derivative, benzo coumarin derivative, menthyl anthranilate, maltodextrin, guar gum
It is mixed evenly with deionized water, is warming up to 50 DEG C, stirs 2h in the state of 5000 revs/min, be cooled to room temperature, mixed
Liquid；
(2) nano imvite and deionized water are mixed evenly, add sodium carboxymethylcellulose, lignin sulfonic acid
Sodium, under the power of 500W, ultrasonic 1h, obtains mixed dispersion liquid；
(3) mixed dispersion liquid that the mixed liquor and step (2) obtained step (1) obtains, mixing, adds cosolvent, table
Face activating agent, the ultrasound 4h under the power of 1000W, adds pH adjusting agent tune its pH to 6-8, obtains acid-fast alkali-proof fluorescent brightening
Agent.
Embodiment 2
A kind of acid-fast alkali-proof fluorescent whitening agent, in parts by weight, including following components：
15 parts of coumarin derivative,
10 parts of benzo coumarin derivative,
8 parts of menthyl anthranilate,
9 parts of sodium carboxymethylcellulose,
10 parts of maltodextrin, 5 parts of nano imvite,
7 parts of guar gum, 2 parts of cosolvent,
1.5 parts of pH adjusting agent, 9 parts of sodium lignin sulfonate,
0.1 part of surfactant, 25 parts of deionized water.
Its preparation method comprises the following steps：
(1) by coumarin derivative, benzo coumarin derivative, menthyl anthranilate, maltodextrin, guar gum
It is mixed evenly with deionized water, is warming up to 60 DEG C, stirs 6h in the state of 5000 revs/min, be cooled to room temperature, mixed
Liquid；
(2) nano imvite and deionized water are mixed evenly, add sodium carboxymethylcellulose, lignin sulfonic acid
Sodium, under the power of 500W, ultrasonic 2h, obtains mixed dispersion liquid；
(3) mixed dispersion liquid that the mixed liquor and step (2) obtained step (1) obtains, mixing, adds cosolvent, table
Face activating agent, the ultrasound 8h under the power of 1000W, adds pH adjusting agent tune its pH to 6-8, obtains acid-fast alkali-proof fluorescent brightening
Agent.
Embodiment 3
A kind of acid-fast alkali-proof fluorescent whitening agent, in parts by weight, including following components：
11 parts of coumarin derivative,
5 parts of benzo coumarin derivative,
6 parts of menthyl anthranilate,
4 parts of sodium carboxymethylcellulose,
6 parts of maltodextrin, 3 parts of nano imvite,
4 parts of guar gum, 1.2 parts of cosolvent,
0.7 part of pH adjusting agent, 6 parts of sodium lignin sulfonate,
0.06 part of surfactant, 17 parts of deionized water.
Its preparation method comprises the following steps：
(1) by coumarin derivative, benzo coumarin derivative, menthyl anthranilate, maltodextrin, guar gum
It is mixed evenly with deionized water, is warming up to 55 DEG C, stirs 3h in the state of 5000 revs/min, be cooled to room temperature, mixed
Liquid；
(2) nano imvite and deionized water are mixed evenly, add sodium carboxymethylcellulose, lignin sulfonic acid
Sodium, under the power of 500W, ultrasonic 1.2h, obtains mixed dispersion liquid；
(3) mixed dispersion liquid that the mixed liquor and step (2) obtained step (1) obtains, mixing, adds cosolvent, table
Face activating agent, the ultrasound 5h under the power of 1000W, adds pH adjusting agent tune its pH to 6-8, obtains acid-fast alkali-proof fluorescent brightening
Agent.
Embodiment 4
A kind of acid-fast alkali-proof fluorescent whitening agent, in parts by weight, including following components：
12 parts of coumarin derivative,
6 parts of benzo coumarin derivative,
6.5 parts of menthyl anthranilate,
5 parts of sodium carboxymethylcellulose,
7 parts of maltodextrin, 3.5 parts of nano imvite,
5 parts of guar gum, 1.4 parts of cosolvent,
0.9 part of pH adjusting agent, 7 parts of sodium lignin sulfonate,
0.07 part of surfactant, 19 parts of deionized water.
Its preparation method comprises the following steps：
(1) by coumarin derivative, benzo coumarin derivative, menthyl anthranilate, maltodextrin, guar gum
It is mixed evenly with deionized water, is warming up to 50 DEG C, stirs 4h in the state of 5000 revs/min, be cooled to room temperature, mixed
Liquid；
(2) nano imvite and deionized water are mixed evenly, add sodium carboxymethylcellulose, lignin sulfonic acid
Sodium, under the power of 500W, ultrasonic 1.4h, obtains mixed dispersion liquid；
(3) mixed dispersion liquid that the mixed liquor and step (2) obtained step (1) obtains, mixing, adds cosolvent, table
Face activating agent, the ultrasound 6h under the power of 1000W, adds pH adjusting agent tune its pH to 6-8, obtains acid-fast alkali-proof fluorescent brightening
Agent.
Embodiment 5
A kind of acid-fast alkali-proof fluorescent whitening agent, in parts by weight, including following components：
13 parts of coumarin derivative,
7 parts of benzo coumarin derivative,
7 parts of menthyl anthranilate,
6 parts of sodium carboxymethylcellulose,
8 parts of maltodextrin, 4 parts of nano imvite,
6 parts of guar gum, 1.6 parts of cosolvent,
1.1 parts of pH adjusting agent, 8 parts of sodium lignin sulfonate,
0.09 part of surfactant, 21 parts of deionized water.
Its preparation method comprises the following steps：
(1) by coumarin derivative, benzo coumarin derivative, menthyl anthranilate, maltodextrin, guar gum
It is mixed evenly with deionized water, is warming up to 60 DEG C, stirs 5h in the state of 5000 revs/min, be cooled to room temperature, mixed
Liquid；
(2) nano imvite and deionized water are mixed evenly, add sodium carboxymethylcellulose, lignin sulfonic acid
Sodium, under the power of 500W, ultrasonic 1.6h, obtains mixed dispersion liquid；
(3) mixed dispersion liquid that the mixed liquor and step (2) obtained step (1) obtains, mixing, adds cosolvent, table
Face activating agent, the ultrasound 7h under the power of 1000W, adds pH adjusting agent tune its pH to 6-8, obtains acid-fast alkali-proof fluorescent brightening
Agent.
Embodiment 6
A kind of acid-fast alkali-proof fluorescent whitening agent, in parts by weight, including following components：
14 parts of coumarin derivative,
9 parts of benzo coumarin derivative,
7.5 parts of menthyl anthranilate,
7 parts of sodium carboxymethylcellulose,
9 parts of maltodextrin, 4.5 parts of nano imvite,
6.5 parts of guar gum, 1.8 parts of cosolvent,
1.3 parts of pH adjusting agent, 8.5 parts of sodium lignin sulfonate,
0.1 part of surfactant, 23 parts of deionized water.
Its preparation method comprises the following steps：
(1) by coumarin derivative, benzo coumarin derivative, menthyl anthranilate, maltodextrin, guar gum
It is mixed evenly with deionized water, is warming up to 60 DEG C, stirs 5h in the state of 5000 revs/min, be cooled to room temperature, mixed
Liquid；
(2) nano imvite and deionized water are mixed evenly, add sodium carboxymethylcellulose, lignin sulfonic acid
Sodium, under the power of 500W, ultrasonic 1.8h, obtains mixed dispersion liquid；
(3) mixed dispersion liquid that the mixed liquor and step (2) obtained step (1) obtains, mixing, adds cosolvent, table
Face activating agent, the ultrasound 7.5h under the power of 1000W, adds pH adjusting agent tune its pH to 6-8, obtains the increasing of acid-fast alkali-proof fluorescence
White agent.
Claims (5)
- A kind of 1. acid-fast alkali-proof fluorescent whitening agent, it is characterised in that in parts by weight, including following components：10-15 parts of coumarin derivative,4-10 parts of benzo coumarin derivative,5-8 parts of menthyl anthranilate,3-9 parts of sodium carboxymethylcellulose,5-10 parts of maltodextrin,2-5 parts of nano imvite,3-7 parts of guar gum,1-2 parts of cosolvent,0.5-1.5 parts of pH adjusting agent,5-9 parts of sodium lignin sulfonate,0.05-0.1 parts of surfactant,15-25 parts of deionized water；Wherein, surfactant is alkyl glycosides, aliphatic alcohol polyethenoxy phosphate, aliphatic alcohol polyethenoxy carboxylate, alkyl One or more mixing in benzene sulfonate；The particle size of the nano imvite is 20-50nm；Its preparation method comprises the following steps：(1) by coumarin derivative, benzo coumarin derivative, menthyl anthranilate, maltodextrin, guar gum and go Ionized water is mixed evenly, and is warming up to 60 DEG C, stirs 5h in the state of 5000 revs/min, be cooled to room temperature, obtain mixed liquor；(2) nano imvite and deionized water are mixed evenly, add sodium carboxymethylcellulose, sodium lignin sulfonate, Under the power of 500W, ultrasonic 1-2h, obtains mixed dispersion liquid；(3) mixed dispersion liquid that the mixed liquor and step (2) obtained step (1) obtains, mixing, adds cosolvent, surface is lived Property agent, the ultrasound 7.5h under the power of 1000W, add pH adjusting agent tune its pH to 6-8, obtain acid-fast alkali-proof fluorescent brightening Agent.
- A kind of 2. acid-fast alkali-proof fluorescent whitening agent as claimed in claim 1, it is characterised in that in parts by weight, including with Lower component：13 parts of coumarin derivative,10 parts of benzo coumarin derivative,7.5 parts of menthyl anthranilate,5 parts of sodium carboxymethylcellulose,7 parts of maltodextrin,3 parts of nano imvite,4.5 parts of guar gum,2 parts of cosolvent,1 part of pH adjusting agent,5 parts of sodium lignin sulfonate,0.1 part of surfactant,25 parts of deionized water.
- A kind of 3. acid-fast alkali-proof fluorescent whitening agent as claimed in claim 1, it is characterised in that the cosolvent is urea, One or more mixing in caprolactam, the urea containing substituent.
- 4. a kind of acid-fast alkali-proof fluorescent whitening agent as claimed in claim 1, it is characterised in that the pH adjusting agent is bigcatkin willow The mixing of one or both of acid, citric acid.
- A kind of 5. acid-fast alkali-proof fluorescent whitening agent as claimed in claim 1, it is characterised in that in step (1), it is described go from The dosage of sub- water is the 10-20% of deionized water gross weight.
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| CN109778522A (en) * | 2017-11-10 | 2019-05-21 | 丹阳市宁大卫防检测技术有限公司 | Brightening agent is used in a kind of weaving |
| CN109457539A (en) * | 2018-11-28 | 2019-03-12 | 夏勇 | A kind of paper grade (stock) environmental protection fluorescent whitening agent and preparation method thereof |
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| CN1180719A (en) * | 1996-10-10 | 1998-05-06 | 希巴特殊化学控股公司 | Dispersions of fluorescent whitening agents |
| CN103755690A (en) * | 2014-01-10 | 2014-04-30 | 陕西科技大学 | Yellowing inhibitor of thermal stability type coumarin flourescent brightener and preparation and application thereof |
| CN103937620A (en) * | 2014-04-04 | 2014-07-23 | 广州立白企业集团有限公司 | Neutral detergent powder compound and preparation method thereof |
| CN105001671A (en) * | 2015-06-29 | 2015-10-28 | 纳爱斯丽水日化有限公司 | Compound brightening agent and washing agent composition containing compound brightening agent |
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