CN113736579A - Fluorescent whitening agent composition with low salt content and preparation method thereof - Google Patents
Fluorescent whitening agent composition with low salt content and preparation method thereof Download PDFInfo
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- CN113736579A CN113736579A CN202111148746.3A CN202111148746A CN113736579A CN 113736579 A CN113736579 A CN 113736579A CN 202111148746 A CN202111148746 A CN 202111148746A CN 113736579 A CN113736579 A CN 113736579A
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- Prior art keywords
- whitening agent
- fluorescent whitening
- agent composition
- low salt
- composition according
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/40—Dyes ; Pigments
- C11D3/42—Brightening agents ; Blueing agents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/046—Salts
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2065—Polyhydric alcohols
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/22—Carbohydrates or derivatives thereof
- C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
- C11D3/225—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin etherified, e.g. CMC
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/34—Organic compounds containing sulfur
- C11D3/3418—Toluene -, xylene -, cumene -, benzene - or naphthalene sulfonates or sulfates
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3707—Polyethers, e.g. polyalkyleneoxides
Abstract
The invention discloses a low-salt fluorescent whitening agent composition and a preparation method thereof, belonging to the field of whitening agents, and the low-salt fluorescent whitening agent composition comprises 85-95% of fluorescent whitening agent, 0-5% of water and at least one of the following components in percentage by weight: 0-15% of polyhydric alcohol and corresponding esterified substance; 0-15% of a surfactant; 0-15% of a cellulose derivative; 0-1% of inorganic salt; the fluorescent whitening agent composition has low salt content, can reduce the corrosiveness of the whitening agent to equipment in use, has high stability in a wide temperature range, and can replace the traditional liquid composition to be used in high-grade detergents.
Description
Technical Field
The invention relates to the field of whitening agents, in particular to a fluorescent whitening agent composition with low salt content and a preparation method thereof.
Background
The fluorescent whitening agent is sodium distyryl biphenyl disulfonate. Is a fluorescent dye, or white dye, and is also a complex organic compound. Its characteristic is that it can excite incident light to produce fluorescence, so that the dyed material can obtain the flash luminous effect similar to fluorite, and the material seen by naked eye is very white.
Can be divided into five types according to chemical structures: principle of action
1. The stilbene type is used for cotton fiber and certain synthetic fiber, paper making, soap making and other industries, and has blue fluorescence;
2. coumarin type, which has coumarin basic structure, is used for xylonite, polyvinyl chloride plastic and the like, and has strong blue fluorescence;
3. pyrazoline type, which is used for fibers such as wool, polyamide, acrylic fiber and the like, and has green fluorescence;
4. the benzoxazepine type is used for fibers such as acrylic fibers and plastics such as polyvinyl chloride and polystyrene, and has red fluorescence;
5. the phthalimide type fluorescent dye is used for fibers such as terylene, acrylon, chinlon and the like, and has blue fluorescence.
However, the existing fluorescent whitening agent compositions have a high salt content and thus have a high corrosion effect on equipment during production.
Disclosure of Invention
In view of the problems in the prior art, a first object of the present invention is to provide a fluorescent whitening agent composition with low salt content, which contains low salt content, can reduce the corrosiveness of the whitening agent on equipment during use, has high stability in a wide temperature range (20-100 ℃), is stable and does not precipitate within 180 days, and can replace the traditional liquid composition for being used in high-grade detergents;
a second object is to provide a process for the preparation of a fluorescent whitening agent composition having a low salt content.
In order to solve the above problems, the present invention adopts the following technical solutions.
Scheme 1, a low-salt fluorescent whitening agent composition, which comprises, by weight, 85-95% of a fluorescent whitening agent, 0-5% of water, and at least one of the following components: 0-15% of polyhydric alcohol and corresponding esterified substance; 0-15% of a surfactant; 0-15% of a cellulose derivative; 0 to 1% of inorganic salt.
Scheme 2, further, the composition comprises, by weight, 85-95% of a fluorescent whitening agent, 0-5% of water, and 0-15% of polyhydric alcohol and corresponding esters thereof. Preferably, the fluorescent whitening agent comprises 85-95% of fluorescent whitening agent, 0-2% of water and 0-10% of polyhydric alcohol and corresponding ester thereof.
Scheme 3, further, the composition comprises, by weight, 85-95% of a fluorescent whitening agent, 0-5% of water, 0-15% of polyhydric alcohol and corresponding esterified compounds thereof, 0-15% of a surfactant, 0-15% of a cellulose derivative and 0-1% of an inorganic salt. Preferably, the fluorescent whitening agent comprises 90-95% of fluorescent whitening agent, 0-2% of water, 0-10% of polyhydric alcohol and corresponding esterified substance thereof, 0-13% of surfactant, 0-12% of cellulose derivative and 0-1% of inorganic salt.
Scheme 4, further, the fluorescent whitening agent is a sulfostyryl biphenyl compound (CBS-X), the structural formula of which is shown as formula (I),
wherein M represents hydrogen, an alkali metal, an ammonium salt or an organic base, and the substitution position of the sulfonic acid group is ortho-position, meta-position or para-position of the vinyl group.
Scheme 5, further, the fluorescent whitening agent is a sulfostyryl biphenyl compound (CBS-X), the structural formula of which is shown as formula (I),
wherein M represents hydrogen, an alkali metal, an ammonium salt or an organic base, and the substitution position of the sulfonic acid group is ortho to the vinyl group.
Scheme 6, further, the polyol and its esterified product at least comprises one of sorbitol, mannitol, xylitol, tween and polyethylene glycol. .
Scheme 7, further, the polyol and its corresponding esterified compound include at least one of sorbitol, polyethylene glycol 4000 and polyethylene glycol 6000.
Scheme 8, further, the polyol and its corresponding ester is polyethylene glycol 4000.
Scheme 9, further, the surfactant comprises at least one of tween and poloxamer 188.
In scheme 10, further, the cellulose and its derivatives at least include one of carboxymethyl cellulose, microcrystalline cellulose and hydroxypropyl cellulose.
Scheme 11, further, the cellulose and its derivatives are carboxymethyl cellulose.
Scheme 12, further, the inorganic salt comprises at least one of sodium chloride and sodium sulfate.
Scheme 13 further relates to a preparation method of the fluorescent brightener composition with low salt content, wherein the preparation method comprises the steps of putting raw materials in the fluorescent brightener composition into a pulping kettle, pulping and dispersing, grinding by using a shear pump or a homogenizing pump to enable the granularity of the mixture to be less than or equal to 5 microns, and then carrying out spray drying on the ground slurry to obtain the granular fluorescent brightener.
Compared with the prior art, the invention has the advantages that:
according to the scheme, at least one of polyol and corresponding esterified substance thereof, surfactant, cellulose derivative and inorganic salt is added into the existing fluorescent whitening agent, and the mixture is mixed with water, pulped, dispersed, ground and spray-dried to form the granular fluorescent whitening agent, so that the content of salt in the fluorescent whitening agent is reduced, and the corrosion to equipment during production is reduced.
Detailed Description
The technical scheme in the embodiment of the invention is clearly and completely described below; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
Example 1:
adding raw materials in a pulping process of fluorescent whitening agent spray drying pretreatment, putting 500kg of fluorescent whitening agent, 30kg of carboxymethyl cellulose and 300kg of water into a pulping kettle, pulping and dispersing, grinding by a shear pump or a homogenizing pump to enable the granularity of the pulp to be less than or equal to 5 mu m, and then carrying out spray drying on the ground pulp to obtain the granular fluorescent whitening agent.
The product has uniform particles and good fluidity, and the salt content in the product is 0.89%;
example 2:
adding raw materials in a pulping process of fluorescent whitening agent spray drying pretreatment, putting 500kg of fluorescent whitening agent, 30kg of sorbitol and 300kg of water into a pulping kettle, pulping and dispersing, grinding by a shear pump or a homogenizing pump to enable the granularity of the pulp to be less than or equal to 5 mu m, and then carrying out spray drying on the ground pulp to obtain the granular fluorescent whitening agent.
The product has uniform particles and good fluidity, and the salt content in the product is 0.86%;
example 3:
in the fluorescent brightener spray drying pretreatment pulping process, adding raw materials, putting 500kg of fluorescent brightener, 30kg of polyethylene glycol 4000 and 300kg of water into a pulping kettle, pulping and dispersing, grinding by using a shear pump or a homogenizing pump to enable the granularity of the pulp to be less than or equal to 5 microns, and then performing spray drying on the ground pulp to obtain the granular fluorescent brightener.
The product has uniform particles and good fluidity, and the salt content in the product is 0.95%;
example 4:
in the pulping process of fluorescent brightener spray drying pretreatment, raw materials are added, 500kg of fluorescent brightener, 30kg of polyethylene glycol 6000 and 300kg of water are put into a pulping kettle, pulping and dispersing are carried out, grinding is carried out through a shear pump or a homogenizing pump, the granularity of the pulp is smaller than or equal to 5 microns, and then spray drying is carried out on the ground pulp, so as to obtain the granular fluorescent brightener.
The product has uniform particles and good fluidity, and the salt content in the product is 0.90%;
example 5:
in the pulping process of fluorescent whitening agent spray drying pretreatment, raw materials are added, 500kg of fluorescent whitening agent, 15kg of carboxymethyl cellulose, 15kg of sorbitol and 300kg of sorbitol are put into a pulping kettle, pulping and dispersing are carried out, grinding is carried out through a shear pump or a homogenizing pump, the granularity of the pulp is smaller than or equal to 5 mu m, and then spray drying is carried out on the ground pulp, so as to obtain the granular fluorescent whitening agent.
The product has uniform particles and good fluidity, and the salt content in the product is 0.80%;
example 6:
in the fluorescent brightener spray drying pretreatment pulping process, adding raw materials, putting 500kg of fluorescent brightener, 15kg of carboxymethyl cellulose, 15kg of polyethylene glycol 4000 and 300kg of water into a pulping kettle, pulping and dispersing, grinding by using a shear pump or a homogenizing pump to enable the granularity of the pulp to be less than or equal to 5 microns, and then carrying out spray drying on the ground pulp to obtain the granular fluorescent brightener.
The product has uniform particle, good fluidity, and salt content of 0.79%.
Example 7:
the experimental data for examples 1-6 are filled in the following table:
comprehensive analysis shows that when the fluorescent whitening agent, water and polyethylene glycol 4000 (or polyethylene glycol 6000) are used as raw materials for preparation, the salt content is more than 0.9%; when the fluorescent whitening agent, water and sorbitol (or carboxymethyl cellulose) are used as raw materials for preparation, the salt content is between 0.8 and 0.9 percent, and when the fluorescent whitening agent, water, carboxymethyl cellulose and sorbitol (or polyethylene glycol 4000) are used as raw materials for preparation, the salt content is below 0.8 percent.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (10)
1. A low salt fluorescent whitening agent composition characterized by: the composition comprises 85-95% of fluorescent whitening agent, 0-5% of water and at least one of the following components in percentage by weight:
0-15% of polyhydric alcohol and corresponding esterified substance;
0-15% of a surfactant;
0-15% of a cellulose derivative;
0 to 1% of inorganic salt.
2. A low salt fluorescent whitening agent composition according to claim 1, wherein: the composition comprises, by weight, 85-95% of a fluorescent whitening agent, 0-5% of water, and 0-15% of a polyhydric alcohol and its corresponding ester.
3. A low salt fluorescent whitening agent composition according to claim 2, wherein: the composition comprises, by weight, 85-95% of a fluorescent whitening agent, 0-5% of water, 0-15% of a polyhydric alcohol and a corresponding esterified product thereof, 0-15% of a surfactant, 0-15% of a cellulose derivative and 0-1% of an inorganic salt.
4. A low salt fluorescent whitening agent composition according to claim 1, wherein: the fluorescent whitening agent is a sulfostyryl biphenyl compound, the structural formula of which is shown as the following formula (I),
wherein M represents hydrogen, an alkali metal, an ammonium salt or an organic base, and the substitution position of the sulfonic acid group is ortho-position, meta-position or para-position of the vinyl group.
5. A low salt fluorescent whitening agent composition according to claim 1, wherein: the polyalcohol and its ester at least comprises one of sorbitol, mannitol, xylitol, tween and polyethylene glycol.
6. A low salt fluorescent whitening agent composition according to claim 5, wherein: the polyalcohol and its corresponding esterified substance at least comprise one of sorbitol, polyethylene glycol 4000 and polyethylene glycol 6000.
7. A low salt fluorescent whitening agent composition according to claim 1, wherein: the surfactant at least comprises one of tween and poloxamer 188.
8. A low salt fluorescent whitening agent composition according to claim 1, wherein: the cellulose and its derivatives at least comprise one of carboxymethyl cellulose, microcrystalline cellulose and hydroxypropyl cellulose.
9. A low salt fluorescent whitening agent composition according to claim 1, wherein: the inorganic salt includes at least one of sodium chloride and sodium sulfate.
10. A process for the preparation of a low-salt fluorescent whitening agent composition according to claim 1, characterized in that: the preparation method comprises the steps of putting the raw materials in the fluorescent whitening agent composition into a pulping kettle, pulping and dispersing, then grinding by a shear pump or a homogenizing pump to enable the granularity of the fluorescent whitening agent composition to be less than or equal to 5 mu m, and then carrying out spray drying on the ground slurry to obtain the granular fluorescent whitening agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111148746.3A CN113736579A (en) | 2021-09-29 | 2021-09-29 | Fluorescent whitening agent composition with low salt content and preparation method thereof |
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| CN202111148746.3A CN113736579A (en) | 2021-09-29 | 2021-09-29 | Fluorescent whitening agent composition with low salt content and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1471179A (en) * | 1973-09-05 | 1977-04-21 | Ciba Geigy Ag | Optically brightening with a synergistic mixture |
| CN101760048A (en) * | 2009-11-30 | 2010-06-30 | 山西青山化工有限公司 | High-dispersivity fluorescent whitening agent and preparation method thereof |
| CN102408957A (en) * | 2011-10-17 | 2012-04-11 | 山西青山化工有限公司 | High-property pulp-shaped fluorescent whitening agent and preparation method thereof |
| CN103540448A (en) * | 2013-09-29 | 2014-01-29 | 山西青山化工有限公司 | Pasty stilbene biphenyl sodium disulfonate (CBS) fluorescent whitening agent and preparation method thereof |
| RU2713356C1 (en) * | 2019-05-15 | 2020-02-04 | Сергей Борисович Врублевский | Mixture for composite bleach and a method for production thereof (versions) |
-
2021
- 2021-09-29 CN CN202111148746.3A patent/CN113736579A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1471179A (en) * | 1973-09-05 | 1977-04-21 | Ciba Geigy Ag | Optically brightening with a synergistic mixture |
| CN101760048A (en) * | 2009-11-30 | 2010-06-30 | 山西青山化工有限公司 | High-dispersivity fluorescent whitening agent and preparation method thereof |
| CN102408957A (en) * | 2011-10-17 | 2012-04-11 | 山西青山化工有限公司 | High-property pulp-shaped fluorescent whitening agent and preparation method thereof |
| CN103540448A (en) * | 2013-09-29 | 2014-01-29 | 山西青山化工有限公司 | Pasty stilbene biphenyl sodium disulfonate (CBS) fluorescent whitening agent and preparation method thereof |
| RU2713356C1 (en) * | 2019-05-15 | 2020-02-04 | Сергей Борисович Врублевский | Mixture for composite bleach and a method for production thereof (versions) |
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