CN107254788B - Method for rapidly preparing sodium alginate raw paste with target viscosity for printing and dyeing by one-step method - Google Patents
Method for rapidly preparing sodium alginate raw paste with target viscosity for printing and dyeing by one-step method Download PDFInfo
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- CN107254788B CN107254788B CN201710509751.XA CN201710509751A CN107254788B CN 107254788 B CN107254788 B CN 107254788B CN 201710509751 A CN201710509751 A CN 201710509751A CN 107254788 B CN107254788 B CN 107254788B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
- D06P1/48—Derivatives of carbohydrates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/642—Compounds containing nitrogen
- D06P1/649—Compounds containing carbonamide, thiocarbonamide or guanyl groups
- D06P1/6491—(Thio)urea or (cyclic) derivatives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
Abstract
The invention belongs to the technical field of printing and dyeing raw material treatment, and particularly relates to a method for pulping sodium alginate raw paste used for printing and dyeing. The method for regulating the viscosity of the sodium alginate raw paste for printing and dyeing to the required viscosity at one time is characterized in that the dosage of the sodium alginate can be calculated according to the calculation formula of the invention. Compared with the prior method for adjusting the raw paste described in the background art, the method has the advantages that the mass of the sodium alginate used when the raw paste is pulped to the required viscosity can be accurately calculated in one step, so that the waste of manpower, material resources and time caused by repeated blending is saved, and the result accuracy is higher by adopting the method.
Description
Technical Field
The invention belongs to the technical field of printing and dyeing raw material treatment, and particularly relates to a method for rapidly preparing sodium alginate raw paste for printing and dyeing with target viscosity by a one-step method.
Background
When color paste is blended in a printing and dyeing mill, sodium alginate with 1% viscosity is pulped to x% according to past experience to form paste or to be higher or lower than ideal viscosity, then water is added into the pulped original paste according to the past experience to adjust the ideal viscosity, and quantitative ideal viscosity adjusting color paste is added, so that a large amount of manpower, material resources and time for adjusting the ideal viscosity are wasted, and the result accuracy caused by bubbles is not good enough when the ideal viscosity is adjusted.
In some physicochemical tests performed in a laboratory, the raw paste needs to be adjusted to a certain viscosity test, such as PVI, net permeability, water holding capacity, silk drawing capacity and the like of the raw paste. At the moment, the viscosity of the raw paste is usually beaten to exceed the standard detection viscosity, and then water is added to adjust the viscosity to the standard viscosity, so that a large amount of manpower, material resources and time for adjusting the viscosity to the standard viscosity are wasted, and the accuracy of the result caused by bubbles in the adjusted viscosity is not good enough.
Therefore, it is highly desirable to find a method for pulping raw paste in one step, which has the following properties: the mass of the sodium alginate required when the raw paste is pulped into the viscosity a can be accurately calculated in one step, so that manpower, material resources and time are saved, and the result accuracy is higher.
Disclosure of Invention
Compared with the common method in which adjustment is carried out according to experience or multiple attempts are carried out, the method not only saves a large amount of time, manpower and material resources, but also has high accuracy.
The method for rapidly preparing the sodium alginate raw paste for printing and dyeing with the target viscosity by the one-step method has the outstanding characteristics that when the sodium alginate raw paste is regulated to the required viscosity, the used amount of the sodium alginate is calculated by adopting the following formula:
w is the amount of sodium alginate to be taken;
w1 is the required total mass of the raw paste;
a is the viscosity of the required pulping;
b is the viscosity of 1% sodium alginate.
And taking sodium alginate according to the weight of the calculated w, taking pure water according to the weight of w1-w, and adding the pure water into the sodium alginate to obtain the printing and dyeing sodium alginate raw paste with the target viscosity.
The sodium alginate used in the invention is preferably sodium alginate containing an additive.
The sodium alginate containing additive comprises the following specific components: 30-90 parts of sodium alginate and 10-70 parts of an additive, wherein the additive contains anhydrous sodium sulphate.
Preferably, the sodium alginate-containing emulsion comprises 40-80 parts by weight of sodium alginate and 20-60 parts by weight of additives;
more preferably, the sodium alginate-containing emulsion comprises 50-75 parts by weight of sodium alginate and 25-50 parts by weight of additives;
the most desirable ratio is 75 parts by weight of sodium alginate and 25 parts by weight of additives.
The additive must contain anhydrous sodium sulphate, and also comprises sodium hexametaphosphate or urea; or alternatively, sodium hexametaphosphate and urea.
If the additive comprises sodium hexametaphosphate or urea, the mass ratio of the sodium hexametaphosphate or urea to the anhydrous sodium sulphate is less than 1: 2.
If the additive consists of sodium hexametaphosphate, urea and anhydrous sodium sulphate, the weight part ratio of the sodium hexametaphosphate to the urea to the anhydrous sodium sulphate is less than 1:1: 2.
The sodium alginate is prepared from N algae, herba Zosterae Marinae or mixture of N algae and herba Zosterae Marinae.
Compared with the prior method for adjusting the raw paste described in the background art, the method has the advantages that the mass of the sodium alginate used when the raw paste is pulped to the required viscosity can be accurately calculated in one step, so that the waste of manpower, material resources and time caused by repeated blending is saved, and the result accuracy is higher by adopting the method.
Drawings
FIG. 1 is a diagram of the formula derivation process of example 4;
FIG. 2 is a graph of a comparative experiment of example 5.
Detailed Description
The present invention will be further described with reference to specific examples so that those skilled in the art may better understand the present invention, but the present invention is not limited thereto.
The general procedure for formulating a raw paste of sodium alginate of the target viscosity is as follows (examples 1 to 3 are the same as this procedure, unless otherwise specified):
(1) calculating the dosage of the sodium alginate required to be taken:
the required amount of the sodium alginate can be obtained by calculation according to the following formula:
w is the amount of sodium alginate to be taken;
w1 is the required total mass of the raw paste;
a is the viscosity of the required pulping;
b is the viscosity of 1% sodium alginate;
in the above formula, w1 is the amount of raw paste determined by the printing manufacturer according to the required printing cloth;
a is the target viscosity determined by the manufacturer;
b is a numerical value given by a manufacturer for providing the sodium alginate;
according to the formula, w can be rapidly obtained, and the amount of the sodium alginate required to be taken can be obtained at one time;
the amount of pure water added was: w 1-w.
(2) Calculating the dosage of the obtained sodium alginate according to the formula in the step (1), and taking the sodium alginate containing the additive;
sodium alginate containing additives: 75 percent of pure sodium alginate and 25 percent of additive, wherein the additive comprises urea, sodium hexametaphosphate and anhydrous sodium sulphate which are less than 1:1: 2; (insofar as it is within the range)
(3) Adding water into the sodium alginate taken in the step (2), wherein the amount of the added water is as follows: w1-w, namely obtaining the sodium alginate raw paste with the required viscosity.
Example 1
For example, a certain dye house needs to obtain a raw paste with a viscosity of 13500cP, and the weight of sodium alginate to be taken is calculated by the following formula:
the preparation process comprises the following steps:
beating, wherein the viscosity of the beating 1% is calculated according to the operation specification, and the mass of the sodium alginate is 1% w1 and 99% w1 of pure water; placing sodium alginate and pure water in a stirrer and stirring for 1.5 h; the rotating speed is 600r/min, the mixture is taken down and kept still for half an hour, the viscosity of the mixture is measured when no air bubbles exist, and the viscosity is corrected to be 20 ℃ according to the viscosity correction coefficient.
The sodium alginate containing the additive consists of the following raw materials in percentage by weight: 75 percent of pure sodium alginate and 25 percent of additive (urea: sodium hexametaphosphate: anhydrous sodium sulphate is less than 1:1: 2).
Pure sodium alginate is prepared from N algae as raw material.
Taking the mass w and the mass w1-w pure water of the sodium alginate obtained according to the calculation formula; placing sodium alginate and pure water in a stirrer and stirring for 1 h; the rotating speed is 600r/min, then the mixture is sealed and placed in a constant temperature box with the temperature of 25 ℃ for 16-18h, and the viscosity is measured immediately after the mixture is taken out.
The required mass of 1% viscosity sodium alginate and its beating to 13500cP and its test results are shown in Table 1:
note: 1. the total mass of the pulping raw paste is 500 g;
2. weighing the mass of the sodium alginate (namely, calculating the obtained w by the formula);
3. error ═ target viscosity ÷ (measured viscosity-target viscosity) ÷ target viscosity
Example 2
The sodium alginate containing the additive consists of the following raw materials in percentage by weight: 50% of pure sodium alginate and 50% of additive (urea: sodium hexametaphosphate: anhydrous sodium sulphate is less than 1:1: 2).
Pure sodium alginate is prepared from kelp as a raw material.
The pulping operation specification comprises the following steps:
the operation procedure of beating with 1% viscosity is to calculate the mass of sodium alginate 1% w1 and 99% w1 pure water, stir for 1.5h at the rotating speed of a stirrer being 600r/min, take down and stand for half an hour, measure the viscosity until no bubbles exist, and correct the viscosity to 20 ℃ according to the viscosity correction coefficient. And beating to a viscosity, stirring sodium alginate with mass w and mass w1-w pure water at the rotating speed of a stirrer of 600r/min for 1h, sealing, placing in a constant temperature box of 25 ℃, standing for 16-18h, taking out, and immediately measuring the viscosity.
The mass required for 1% viscosity sodium alginate and its beating to 6500cP as described in example 2 and the results of its test are shown in Table 2:
note: 1. the total mass of the beaten raw paste is 500g
2. Weighing the mass of the sodium alginate;
3. error ═ target viscosity ÷ (measured viscosity-target viscosity) ÷ target viscosity
Example 3
The sodium alginate containing the additive consists of the following raw materials in percentage by weight: 25 to 50 percent of pure sodium alginate and 25 to 50 percent of additive (urea: sodium hexametaphosphate: anhydrous sodium sulphate < 1:1: 2).
The pure sodium alginate is prepared by processing N algae and kelp serving as raw materials, wherein the weight ratio of the N algae to the kelp is 1: 1.
The pulping operation specification comprises the following steps:
the operation procedure of beating with 1% viscosity is to calculate the mass of sodium alginate 1% w1 and 99% w1 pure water, stir for 1.5h at the rotating speed of a stirrer being 600r/min, take down and stand for half an hour, measure the viscosity until no bubbles exist, and correct the viscosity to 20 ℃ according to the viscosity correction coefficient. And beating to a viscosity, stirring sodium alginate with mass w and mass w1-w pure water at the rotating speed of a stirrer of 600r/min for 1h, sealing, placing in a constant temperature box of 25 ℃, standing for 16-18h, taking out, and immediately measuring the viscosity.
The mass required for 1% viscosity sodium alginate and its beating to 10000cP described in example 3 and the test results are shown in Table 3:
note: 1. the total mass of the beaten raw paste is 500g
2. Weighing the mass of the sodium alginate;
3. error ═ target viscosity ÷ (measured viscosity-target viscosity) ÷ target viscosity
It can be seen that the beating method of the embodiments 1-3 of the present invention, the error between the actual viscosity and the ideal viscosity is within ± 3%, which meets the industrial standard, and the beating method of the present invention is applicable.
The original paste can be directly used after calculation, and the target original paste can be obtained in one step, so that the time duration is very short, and the trial is not needed for one time;
the original paste is prepared according to a common method, sodium alginate is required to be firstly mixed into the original paste, then the original paste is diluted by adding water for one time, and the original paste with the target viscosity can be obtained by one time of trial and error, and the required time is far beyond the time of the invention.
Example 4
The formula calculation in example 1 was obtained by the following experiment and derivation:
| batch number | Viscosity of the oil | Multiple of paste formation |
| 1％，20℃，cP | 136 | 1 |
| 2％，25℃，cP | 1114 | 8.19 |
| 3％，25℃，cP | 5300 | 38.97 |
| 4％，25℃，cP | 12800 | 94.12 |
| 5％，25℃，cP | 26550 | 195.22 |
| 6％，25℃，cP | 42100 | 309.56 |
| 7％，25℃，cP | 77200 | 567.65 |
| 8％，25℃，cP | 125000 | 919.12 |
| 9％，25℃，cP | 173000 | 1272.06 |
The experimental viscosity is the average of three experiments of the same test sample.
The formula of the present invention can be derived from the data in the above table and the curve of fig. 1 by calculation.
Example 5
If pure sodium alginate, i.e. sodium alginate without any additives, is used, the inventors have carried out the following experiments, the graph of which is shown in fig. 2, and the results are shown in the following table:
wherein, the experimental viscosity is the average value of three groups of experiments of the same test sample.
From the above table and the curve of fig. 2, the following conclusions can be drawn:
pure sodium alginate is adopted, the formula of the invention can be applied for calculation, but compared with the sodium alginate added with the additive, the error is slightly larger, and the accuracy is reduced. Therefore, the inventor finds out through experiments that the accuracy is higher by adopting the sodium alginate added with the additive, and the anhydrous sodium sulphate is required to be added into the additive.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The method for rapidly preparing the sodium alginate raw paste with the target viscosity for printing and dyeing by one-step method is characterized in that the dosage of the sodium alginate containing the additive is calculated by adopting the following formula:
w is the dosage of sodium alginate containing additives required to be taken;
w1the required total mass of the raw paste;
a is the viscosity of the required pulping;
b is the viscosity of 1% sodium alginate;
the dosage of the pure water is w 1-w;
taking the sea containing the additive according to the calculated weight of wSodium alginate, and according to w1Taking pure water by weight, and adding the pure water into the sodium alginate containing the additive to obtain the sodium alginate raw paste for printing and dyeing with target viscosity;
the sodium alginate containing the additive comprises 30-90 parts by weight of sodium alginate and 10-70 parts by weight of the additive;
the additive contains anhydrous sodium sulphate, and also comprises at least one of sodium hexametaphosphate and urea;
the mass ratio of the sodium hexametaphosphate or the urea to the anhydrous sodium sulphate in the additive is less than 1: 2.
2. The method for rapidly preparing the sodium alginate raw paste for printing and dyeing with the target viscosity by the one-step method as claimed in claim 1, wherein the sodium alginate containing the additive comprises 40-80 parts by weight of sodium alginate and 20-60 parts by weight of the additive.
3. The method for rapidly preparing the sodium alginate raw paste for printing and dyeing with the target viscosity by the one-step method as claimed in claim 1, wherein the sodium alginate containing the additive comprises 50-75 parts by weight of sodium alginate and 25-50 parts by weight of the additive.
4. The method for rapidly preparing a sodium alginate raw paste for printing and dyeing of a target viscosity in one step as claimed in claim 1, wherein the sodium alginate containing the additive comprises 75 parts by weight of sodium alginate and 25 parts by weight of the additive.
5. The method for rapidly preparing the sodium alginate raw paste for printing and dyeing with the target viscosity by the one-step method as claimed in claim 1, wherein the additive consists of sodium hexametaphosphate, urea and anhydrous sodium sulphate, and the weight part ratio of the sodium hexametaphosphate, the urea and the anhydrous sodium sulphate is less than 1:1: 2.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492179A (en) * | 2011-12-06 | 2012-06-13 | 深圳市富安娜家居用品股份有限公司 | Sodium alginate-based slurry, printing sizing agent and preparation methods thereof |
| CN104628886A (en) * | 2014-12-25 | 2015-05-20 | 山东洁晶集团股份有限公司 | Process method for improving rheological properties of printing and dyeing level sodium alginate |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492179A (en) * | 2011-12-06 | 2012-06-13 | 深圳市富安娜家居用品股份有限公司 | Sodium alginate-based slurry, printing sizing agent and preparation methods thereof |
| CN104628886A (en) * | 2014-12-25 | 2015-05-20 | 山东洁晶集团股份有限公司 | Process method for improving rheological properties of printing and dyeing level sodium alginate |
Non-Patent Citations (2)
| Title |
|---|
| Rheological properties of sodium alginate and xanthan pastes on cotton with reactive dye in screen printing;Lili Wang等;《Textile Research Journal》;20131231;第83卷;全文 * |
| Viscosity Profiles of Printing Thickeners at High Shear Rates and Their Use in Predicting Paste Flow in Screen Printing;T.H.GUION等;《Textile Research Journal》;19851231;第55卷;第498-508页 * |
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Denomination of invention: One step method for rapid preparation of sodium alginate paste with target viscosity for printing and dyeing Effective date of registration: 20230428 Granted publication date: 20200522 Pledgee: Rizhao Bank Co.,Ltd. Donggang sub branch Pledgor: SHANDONG JIEJING Group Corp. Registration number: Y2023980039602 |
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