CN109233324A - A kind of dyestuff processing technology for anticorrosion fabric - Google Patents
A kind of dyestuff processing technology for anticorrosion fabric Download PDFInfo
- Publication number
- CN109233324A CN109233324A CN201811081033.8A CN201811081033A CN109233324A CN 109233324 A CN109233324 A CN 109233324A CN 201811081033 A CN201811081033 A CN 201811081033A CN 109233324 A CN109233324 A CN 109233324A
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- CN
- China
- Prior art keywords
- solution
- reaction
- dyestuff
- diazo
- processing technology
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/08—Disazo dyes from a coupling component "C" containing directive hydroxyl and amino groups
Abstract
The invention discloses a kind of dyestuff processing technologys for anticorrosion fabric, specifically comprise the following steps: S1 diazo-reaction, and diazo-reaction occurs for raw material, obtain diazonium salt；Under setting condition coupling reaction occurs for coupling reaction of S2, the diazonium salt of acquisition；The step of before bis- bis- diazo-reactions of S3, S4 coupling reactions repetitions, change corresponding conditions to finally obtain required dye solution；S5 subsequent processing, handles acquired solution, to obtain molding solid dye；The mass fraction of above-mentioned each step products therefrom solution difference, wherein subsequent processing uses vacuum drying method, vacuum drying drying time is short, it and is physical change in the drying process, it avoids dyestuff from occurring repeatedly reaction and generates other substances, the touch opportunity that material and air can also be reduced is avoided that pollution or oxidation deterioration；Dyestuff made of the present invention has good corrosion resistance, can be good at collocation corrosion fabric and uses.
Description
Technical field
The present invention relates to dyestuff technology fields, and in particular to a kind of dyestuff processing work for anticorrosion fabric
Skill.
Background technique
Anticorrosion fabric is mainly used for the industries such as chemical industry, metallurgy, mineral products, geology, plating, printing and dyeing, papermaking and soda acid, chemistry
The work post of medicament contact does protective garment fabric.Anti- soda acid fabric has good permeability and chance acid & alkali liquid, grease are impermeable,
Long with the acidproof time, resistance to acid fracturing is high and soaks the low good anti-acid-base property energy of drop rate, has good protection to practitioner
Function.
Anticorrosion fabric is often needed in the design plus specific color, in order to distinguish；It can be by color come anti-
Acid-proof or alkali prevention are answered, the number that mark indicates different can also be dyed on fabric, is used to different staff,
Convenient for quickly recognizing user；But during the work time, fabric can be corrosion-resistant, and dyestuff, which lacks, does not have this advantage, past
Toward can be corroded object corrosion, thus lose it is significant, this protective garment do not have it is significant will affect use, cause protective garment report
It is useless.
Summary of the invention
The technical problem to be solved by the present invention is to traditional dyes on anticorrosion fabric, in anticorrosion fabric and corrosion
Product contact when, fabric can anticorrosion, dyestuff is but destroyed structure, loses dyeing effect, to change colour, influence appearance and make
With in order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
The present invention provides a kind of dyestuff processing technology for anticorrosion fabric, which includes the following steps:
S1, diazo-reaction: diazo-reaction occurs for 3- amino-4-hydroxy benzene sulfonic acid, 3-8- disulfonate, generates diazonium
Salt；
S2, a coupling reaction: diazonium salt and 3- ethyoxyl -6- methylaniline hydrochloride will be made in step S1 in alkalinity
Coupling reaction occurs under solution condition, wherein diazonium salt and 3- ethyoxyl -6- methylaniline hydrochloride and 3- amino-4-hydroxy benzene
Sulfonic acid, 3-8- disulfonate molar ratio be 0.92~0.95:1；
S3, secondary diazo-reaction: Monoazo compound solution obtained by step S2 is mixed with middle addition hydrochloric acid, sodium nitrite
It closes, in the case where temperature is 10~15 DEG C, reacts 3~3.5h；
S4, secondary coupling reaction: N- phenyl -3- anilino- -5- naphthols -7- sulfonic acid is mixed with sodium hydroxide solution, is made
The dissolution of N- phenyl -3- anilino- -5- naphthols -7- sulfonic acid is obtained, N- phenyl -3- anilino- -5- naphthols -7- sodium sulfonate solution is generated,
Again plus sodium carbonate tune pH value is to 8~9.5, adds the resulting secondary diazonium compound of step S3 and carries out secondary coupling reaction to eventually
Point, reaction time are 5~6h；
S5, subsequent processing: the resulting solution of step S4 is post-processed to obtain dyestuff.
As a preferred technical solution of the present invention, the step S1 implementation process is by 3- amino-4-hydroxy benzene sulphur
Acid, 3-8- disulfonate and water and hydrochloric acid are blended into suspended substance, and ice is added, is cooled to 0~5 DEG C, and mass content is then added and is
30%~35% sodium nitrite solution carries out diazo-reaction, obtains diazonium salt solution.
As a preferred technical solution of the present invention, the step S2 implementation process is by monoazo obtained by step S1
It closes object and adjusts pH with sodium hydroxide, obtain the alkalescent Monoazo compound solution that pH is 8~8.5, while by 3- ethyoxyl -6-
Methylaniline hydrochloride is added in alkalescent Monoazo compound solution, adjusts reaction with 10%~20% sodium hydroxide solution
Liquid pH to 10~10.5 makes reaction solution at 0~5 DEG C, obtains a coupling reaction solution within reaction 2~2.5 hours.
As a preferred technical solution of the present invention, a coupled product is controlled in a coupled product solution
Mass content is 13%~17%.
As a preferred technical solution of the present invention, the mass content of product in the secondary diazotising reaction mixture is made
It is 15%~20%.
As a preferred technical solution of the present invention, secondary coupled product in the solution of the secondary coupled product is made
Mass content is 17%~22%.
As a preferred technical solution of the present invention, post-processing is vacuum drying in step S5, and the vacuum drying is
Under the conditions of material is placed in negative pressure of vacuum, reduce the boiling point of water, the boiling point of water at one atm is 100 DEG C, in vacuum
The boiling point of water can be made to drop to 80 DEG C under condition of negative pressure, 60 DEG C, 40 DEG C start to evaporate.
A kind of dyestuff processing technology for anticorrosion fabric of the present invention has the advantage that the present invention by 3- ammonia
Base -4- hydroxy benzene sulfonic acid, 3-8- disulfonate carry out processing reaction, and the product of acquisition has excellent corrosion resistance, can
Situations such as carrying out collocation use with anticorrosion fabric well, anticorrosion fabric is avoided to fade in use has ensured anti-
Corrosion fabric is used for a long time.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment
Embodiment
A kind of dyestuff processing technology for anticorrosion fabric, the preparation process include the following steps:
S1, diazo-reaction: diazo-reaction occurs for 3- amino-4-hydroxy benzene sulfonic acid, 3-8- disulfonate, generates diazonium
Salt；
S2, a coupling reaction: diazonium salt and 3- ethyoxyl -6- methylaniline hydrochloride will be made in step S1 in alkalinity
Coupling reaction occurs under solution condition, wherein diazonium salt and 3- ethyoxyl -6- methylaniline hydrochloride and 3- amino-4-hydroxy benzene
Sulfonic acid, 3-8- disulfonate molar ratio be 0.92~0.95:1；
S3, secondary diazo-reaction: Monoazo compound solution obtained by step S2 is mixed with middle addition hydrochloric acid, sodium nitrite
It closes, in the case where temperature is 10~15 DEG C, reacts 3~3.5h；
S4, secondary coupling reaction: N- phenyl -3- anilino- -5- naphthols -7- sulfonic acid is mixed with sodium hydroxide solution, is made
The dissolution of N- phenyl -3- anilino- -5- naphthols -7- sulfonic acid is obtained, N- phenyl -3- anilino- -5- naphthols -7- sodium sulfonate solution is generated,
Again plus sodium carbonate tune pH value is to 8~9.5, adds the resulting secondary diazonium compound of step S3 and carries out secondary coupling reaction to eventually
Point, reaction time are 5~6h；
S5, subsequent processing: the resulting solution of step S4 is post-processed to obtain dyestuff.
Further, the step S1 implementation process be by 3- amino-4-hydroxy benzene sulfonic acid, 3-8- disulfonate and water and
Hydrochloric acid is blended into suspended substance, and ice is added, is cooled to 0~5 DEG C, and it is molten that the sodium nitrite that mass content is 30%~35% is then added
Liquid carries out diazo-reaction, obtains diazonium salt solution.
Further, the step S2 implementation process is to adjust Monoazo compound obtained by step S1 with sodium hydroxide
PH obtains the alkalescent Monoazo compound solution that pH is 8~8.5, while 3- ethyoxyl -6- methylaniline hydrochloride being added
In alkalescent Monoazo compound solution, reaction solution pH to 10~10.5 is adjusted with 10%~20% sodium hydroxide solution, is made
Reaction solution obtains a coupling reaction solution in reaction 2~2.5 hours at 0~5 DEG C.
Further, the mass content for controlling a coupled product in the coupled product solution is 13%~
17%.
Further, the mass content for making product in the secondary diazotising reaction mixture is 15%~20%.
Further, the mass content for making secondary coupled product in the solution of the secondary coupled product is 17%~
22%.
Further, post-processing is vacuum drying in step S5, and the vacuum drying is that material is placed in negative pressure of vacuum item
Under part, reduce the boiling point of water, the boiling point of water at one atm is 100 DEG C, and the boiling of water can be made under the conditions of negative pressure of vacuum
Point drops to 80 DEG C, and 60 DEG C, 40 DEG C start to evaporate.
S1, diazo-reaction, 3- amino-4-hydroxy benzene sulfonic acid, 3-8- disulfonate occur instead under an acid condition
It answers, diazo-reaction occurs for the sodium nitrite solution with 30%~35%, produces diazonium salt, and diazonium salt is unstable, so setting
Compared with low temperature, to guarantee that diazonium salt will not decompose；S2, a coupling reaction, to diazonium salt obtained in step S1,
Coupling reaction occurs with 3- ethyoxyl -6- methylaniline hydrochloride using sodium hydroxide adjusting ph to alkaline condition, and later,
Consider for the purposes of the stability of product, be 0~5 DEG C by temperature setting, hydroxide ion in alkaline solution is to reacting
To facilitation, the reaction time is set as 2~2.5 hours, guarantees the abundant progress of reaction；S3, secondary diazo-reaction are repeated
The operation of S1, diazo-reaction, then a coupling reaction product is converted into diazonium salt, compared with S1, the weight of diazo-reaction step
Nitrogen salt product structure is different, more ethyoxyl and methylaniline structures, for next step reaction；S4, secondary coupling reaction, weight
The step of multiple S2, a coupling reaction, change reactant are N- phenyl -3- anilino- -5- naphthols -7- sodium sulfonate, are coupled
Reaction finally obtains dye solution, and acquired dyestuff has stronger corrosion resistance；It is dry using vacuum in S5, subsequent processing
Dry to draw the dyestuff in solution, vacuum drying method is more convenient and quick, high-efficient, while not contacting with air, it is difficult to connect
Pollutant is touched, and operating condition temperature is low, avoids dye solution from decomposing again situation, causes dyestuff impure.
Meanwhile with the lasting progress of reaction, proportion gradually increases reaction product in the solution, convenient for extracting, mentions
Rise yield.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (7)
1. a kind of dyestuff processing technology for anticorrosion fabric, which is characterized in that the preparation process includes the following steps:
S1, diazo-reaction: diazo-reaction occurs for 3- amino-4-hydroxy benzene sulfonic acid, 3-8- disulfonate, generates diazonium salt；
S2, a coupling reaction: diazonium salt and 3- ethyoxyl -6- methylaniline hydrochloride will be made in step S1 in alkaline solution
Under the conditions of coupling reaction occurs, wherein diazonium salt and 3- ethyoxyl -6- methylaniline hydrochloride and 3- amino-4-hydroxy benzene sulphur
Sour, 3-8- disulfonate molar ratio is 0.92~0.95:1；
S3, secondary diazo-reaction: Monoazo compound solution obtained by step S2 is mixed with middle addition hydrochloric acid, sodium nitrite,
In the case where temperature is 10~15 DEG C, 3~3.5h is reacted；
S4, secondary coupling reaction: N- phenyl -3- anilino- -5- naphthols -7- sulfonic acid is mixed with sodium hydroxide solution, so that N-
The dissolution of phenyl -3- anilino- -5- naphthols -7- sulfonic acid, generation N- phenyl -3- anilino- -5- naphthols -7- sodium sulfonate solution, then plus
Sodium carbonate tune pH value adds the resulting secondary diazonium compound of step S3 and carries out secondary coupling reaction to terminal to 8~9.5,
Reaction time is 5~6h；
S5, subsequent processing: the resulting solution of step S4 is post-processed to obtain dyestuff.
2. a kind of dyestuff processing technology for anticorrosion fabric according to claim 1, which is characterized in that the step S1
Implementation process is that 3- amino-4-hydroxy benzene sulfonic acid, 3-8- disulfonate and water and hydrochloric acid are blended into suspended substance, and ice, drop is added
Then temperature is added the sodium nitrite solution that mass content is 30%~35%, carries out diazo-reaction, obtain diazonium to 0~5 DEG C
Salting liquid.
3. a kind of dyestuff processing technology for anticorrosion fabric according to claim 1, which is characterized in that the step S2
Implementation process is that Monoazo compound sodium hydroxide obtained by step S1 is adjusted pH, and it is even to obtain the alkalescent list that pH is 8~8.5
Nitrogen compound solution, while 3- ethyoxyl -6- methylaniline hydrochloride being added in alkalescent Monoazo compound solution, it uses
10%~20% sodium hydroxide solution adjusts reaction solution pH to 10~10.5, makes reaction solution at 0~5 DEG C, reaction 2~2.5
Hour obtains a coupling reaction solution.
4. a kind of dyestuff processing technology for anticorrosion fabric according to claim 1, which is characterized in that in step S2,
The mass content for controlling a coupled product in a coupled product solution is 13%~17%.
5. a kind of dyestuff processing technology for anticorrosion fabric according to claim 1, which is characterized in that in step 3, control
The mass content for making product in the secondary diazotising reaction mixture is 15%~20%.
6. a kind of dyestuff processing technology for anticorrosion fabric according to claim 1, which is characterized in that in step 4, control
The mass content for making secondary coupled product in the solution of the secondary coupled product is 17%~22%.
7. a kind of dyestuff processing technology for anticorrosion fabric according to claim 1, which is characterized in that after in step S5
Processing is vacuum drying, and the vacuum drying is to reduce the boiling point of water under the conditions of material is placed in negative pressure of vacuum, and water is at one
Boiling point under atmospheric pressure is 100 DEG C, the boiling point of water can be made to drop to 80 DEG C under the conditions of negative pressure of vacuum, 60 DEG C, 40 DEG C start to evaporate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081033.8A CN109233324A (en) | 2018-09-17 | 2018-09-17 | A kind of dyestuff processing technology for anticorrosion fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811081033.8A CN109233324A (en) | 2018-09-17 | 2018-09-17 | A kind of dyestuff processing technology for anticorrosion fabric |
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| Publication Number | Publication Date |
|---|---|
| CN109233324A true CN109233324A (en) | 2019-01-18 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004048478A1 (en) * | 2002-11-28 | 2004-06-10 | Basf Aktiengesellschaft | Method for producing a liquid formulation of salts of sulfoacidic azo dyes |
| CN1786078A (en) * | 2005-11-01 | 2006-06-14 | 吴江市罗林染化有限公司 | Preparation technology of direct mixed spinning purple dyestuff |
| CN101307187A (en) * | 2008-07-09 | 2008-11-19 | 吴江梅堰三友染料化工有限公司 | Preparation process for directly blended spinning navy D-R dye |
| CN102408743A (en) * | 2011-08-10 | 2012-04-11 | 吴江梅堰三友染料化工有限公司 | Production process of direct blending navy blue D-R dye |
-
2018
- 2018-09-17 CN CN201811081033.8A patent/CN109233324A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004048478A1 (en) * | 2002-11-28 | 2004-06-10 | Basf Aktiengesellschaft | Method for producing a liquid formulation of salts of sulfoacidic azo dyes |
| CN1786078A (en) * | 2005-11-01 | 2006-06-14 | 吴江市罗林染化有限公司 | Preparation technology of direct mixed spinning purple dyestuff |
| CN101307187A (en) * | 2008-07-09 | 2008-11-19 | 吴江梅堰三友染料化工有限公司 | Preparation process for directly blended spinning navy D-R dye |
| CN102408743A (en) * | 2011-08-10 | 2012-04-11 | 吴江梅堰三友染料化工有限公司 | Production process of direct blending navy blue D-R dye |
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