CN107059439B - A kind of process improving printing and dyeing grade sodium alginate stability - Google Patents
A kind of process improving printing and dyeing grade sodium alginate stability Download PDFInfo
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- CN107059439B CN107059439B CN201611180437.3A CN201611180437A CN107059439B CN 107059439 B CN107059439 B CN 107059439B CN 201611180437 A CN201611180437 A CN 201611180437A CN 107059439 B CN107059439 B CN 107059439B
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
- C08B37/0084—Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates
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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
- D06P1/647—Nitrogen-containing carboxylic acids or their salts
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- 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
- D06P1/6495—Compounds containing carbonamide -RCON= (R=H or hydrocarbons)
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- 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
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Abstract
The invention discloses it is a kind of improve printing and dyeing grade sodium alginate stability process, step be brown alga it is soaking, it is primary wash, digest, rush dilute, filtering, calcification, decalcification, it is secondary wash, be dehydrated obtain alginic acid；Then sodium alginate, addition solid preservative, granulation, drying, cooling, crushing, adding liquid preservative and solid complexing agent, cooling, finished product packing are generated through solid phase neutralization reaction.The present invention can greatly improve the stability of sodium alginate, extend the resting period of sodium alginate solid and its glue, and for printing and dyeing, producer saves production cost.
Description
Technical field
The invention belongs to printing gum technical fields, and in particular to a kind of technique for improving printing and dyeing grade sodium alginate stability
Method.
Background technique
Sodium alginate solid in the prior art during storage, iron ion, soda acid, the microorganism the effects of under, it is long
Chain rupture easily occurs for chain structure, and viscosity is caused to decline.With the extension of resting period, sodium alginate viscosity constantly declines, after 1 year
Viscosity even can be down to original 1/5th.In addition, printing and dyeing mill is when using sodium alga acid printing paste, due to mixing plant
The phenomenon that influence of the chemical reagent such as upper iron ion, soda acid, microorganism, glue also will appear viscosity decline after placing.To guarantee
Suitable gelatin viscosity, printing and dyeing mill have in two or three days finishing thickener use.It is hydrolyzed if standing time is partially long
Phenomenon causes thickener thinning, is not available, and increases printing and dyeing mill's burden, the wasting of resources, the production cost increases.
Summary of the invention
The present invention provides a kind of processes for improving printing and dyeing grade sodium alginate stability, can greatly improve seaweed
The stability of sour sodium extends the resting period of sodium alginate solid and its glue, and for printing and dyeing, producer saves production cost.
To achieve the goals above, the present invention, which adopts the following technical solutions, is achieved:
A kind of process improving printing and dyeing grade sodium alginate stability, step is soaking, primary for brown alga to wash, disappears
Change, rush dilute, filtering, calcification, decalcification, it is secondary washing, dehydration obtain alginic acid；Then alginic acid is generated through solid phase neutralization reaction
Sodium, addition solid preservative, granulation, drying, cooling, crushing, adding liquid preservative and complexing agent, cooling, finished product packing.
In order to remove the metal ion in alginic acid, the secondary washing is added using the deionized water that complexing agent is added
Amount is the 0.1-0.5% of deionized water gross mass；Alginic acid and the mass ratio of washing water consumption are 1:5-20.
Further, the complexing agent is four sodium of iminodisuccinic acid, disodium ethylene diamine tetraacetate or calgon
One or more of mixture.
In order to improve the stability of semi-finished product sodium alginate viscosity, the water content that the dehydration obtains alginic acid is 66-
68%, solid sodium carbonate is added and carries out solid phase neutralization reaction generation sodium alginate；Solid is added before proceeding to terminal in neutralization reaction
Preservative, additional amount account for the 0.3-0.5% of sodium alginate quality.
Further, the mass ratio of the alginic acid and sodium carbonate is 87-92:8-13；It is reacted under the conditions of 30-50 DEG C
10-15min, the pH of final sodium alginate are 6.5-7.5.
In order to promote neutralization reaction complete, the stability of product is improved, the granularity of the solid sodium carbonate is 130-180
Mesh.
Further, the solid preservative is paraben esters, benzoic acid, Dodecydimethylammonium bronides, the chloro- 3- of 4-
One or more of methylphenol (PCMC) or 2,6- xylenol (2,6-DMP) mixture.
In order to improve the stability of finished product sodium alginate viscosity, liquid is added to 40-80 mesh in the crushing sodium alginate by spraying
Then body preservative is added solid complexing agent, and stirs 50-70min, be cooled to 20-30 DEG C.
Further, the mass ratio of the sodium alginate, liquid preservative and complexing agent is 87-96:1-3:3-10.
Further, the liquid preservative is poly- 2-methyl-4-isothiazolin-3-one compound, the chloro- 2- first of poly- 5-
Base -4- isothiazoline -3- ketone compound, ten thousand found net ZA-100, sterilizing solution DMT or one or more of the GY-511 that stands erect.
Compared with prior art, the advantages and positive effects of the present invention are: improvement printing and dyeing grade sodium alginate of the invention is steady
Complexing agent is added in water-washing process in qualitative process, and the redox of the metal ions such as iron ion can be effectively prevent anti-
Cope with the destruction of sodium alginate strand；It is subsequent that solid preservative is added during neutralization reaction, microorganism can be effectively prevent
Destruction to sodium alginate strand；Liquid preservative and complexing agent are added in finished powder, improves product appearance, improves product
The stability of glue when in use.
Specific embodiment
The technical scheme of the present invention will be explained in further detail With reference to embodiment.The present invention is previously mentioned
Ratio, " part ", if being subject to weight without particularly marking.
The present invention provides a kind of processes for improving printing and dyeing grade sodium alginate stability, are brown alga is soaking, water
It washes, digest, rush dilute, filtering, calcification, decalcification, using the deionized water that iron ion complexing agent is added washed, be dehydrated, solid phase
It neutralizes, add solid preservative, granulation, drying, cooling, crushing, adding liquid preservative and solid complexing agent, cooling, finished product
Packaging.It comprises the concrete steps that:
1) brown alga is chosen, 3-10h is soaked in water, then washes, the washing times are 2-4 times, and it is miscellaneous to effectively remove surface
Matter；The kind of the brown alga is one or more of yellow tang, kelp or bulk kelp.
2) sodium carbonate is added in the brown alga after washing and carries out digestion reaction, the mass ratio 70-80:20- of brown alga and sodium carbonate
30, digest for second level to level Four digest, digestion temperature be 45-60 DEG C, digestion time be every grade of 1-2h, digestion replace with defibrination into
Row；Then it is diluted with water to obtain glue, it is 70-100 times that dilute multiple is rushed in dilution, and rushing dilute number of seconds control is 70-90 seconds.
3) above-mentioned glue is filtered, is three-stage filtration, strainer mesh number is respectively 20-30 mesh, 130-180 mesh and
300-400 mesh effectively removes glue impurity；After separating and filtering, calcium chloride solution is added and carries out calcium analysis, hydrochloric acid is added and is taken off
Calcium；It is washed, washing is using the deionized water that joined complexing agent；After complexing agent is reacted with the metal ion in alginic acid,
By metal ion by solid strip into aqueous solution；Metal ion is removed together with water, obtains alginic acid by then press dewatering；
Dewatered alginic acid water content is 66-68%.The press dewatering is squeezed using two-stage screw.
The complexing agent is four sodium of iminodisuccinic acid (IDS), disodium ethylene diamine tetraacetate (EDETATE SODIUM), six inclined phosphorus
One or more of sour sodium mixture；Additive amount is the 0.1%-0.5% of deionized water gross mass, can be according in sodium alginate
The content of multivalent ion is adjusted, and guarantees that complexing agent is excessive.The mass ratio of alginic acid and water scouring water is 1:5-20.By
Polyvalent metal ion in product sodium alginate, which is usually reacted with sodium alginate, generates insoluble substance, can after addition complexing agent
To remove the polyvalent metal ion in sodium alginate, the dissolubility of sodium alginate is helped to improve, the iron ion for reducing product contains
Amount, greatly reduces influence of the redox reaction of iron ion to sodium alginate molecular chain rupture, improves sodium alginate
Stability；Complexing agent remaining in product helps that polyvalent metal ion in sodium alginate soln is complexed when in use simultaneously,
Improve the stability of sodium alginate when in use.
Preferred complexing agent group is combined into IDS and EDETATE SODIUM, and ratio 1:1, IDS are EDTA bis- to the chelating value of iron ion
17 times of sodium, and EDETATE SODIUM is to other polyvalent metal ions (Ca2+、Mn2+、Zn2+) sequestering power it is stronger, the two combination make
With the calcium ion and iron ion that can be effectively complexed in alginic acid.
4) the alginic acid block that above-mentioned water content is 66-68% is added in agitator tank, solid sodium carbonate is then added and carries out
Solid phase neutralization reaction generates sodium alginate, and neutralization reaction is added solid preservative before proceeding to terminal, mediates and be granulated.
In neutralization reaction, the mass ratio of the alginic acid and sodium carbonate is 87-92:8-13；It is anti-under the conditions of 30-50 DEG C
It answers, reaction time 10-15min, the pH of final sodium alginate is 6.5-7.5.The solid preservative is usually neutral or inclined
Alkalinity, in order to guarantee neutralization reaction at the end of the pH of sodium alginate be 6.5-7.5, which needs in neutralization reaction to proceed to end
Solid preservative is added before selecting.
The additional amount of the solid preservative accounts for the 0.3-0.5% of sodium alginate quality.The solid preservative is Ni Bo
The chloro- 3- methylphenol (PCMC) of golden ester, benzoic acid, Dodecydimethylammonium bronides, 4-, 2,6- xylenol (2,6-
One or more of DMP).The solid preservative be it is powdered, the control of preferred granularity facilitates in 30-150 mesh in sea
It is uniformly dispersed in alginic acid block.
As preferred embodiment, the solid sodium carbonate uses granularity for 130-180 mesh powder, further preferred
Granularity is 150 mesh, is uniformly spread on alginic acid block, promotes neutralization reaction complete, helps to improve the stability of product.
5) sodium alginate that above-mentioned neutralization reaction generates, being dried to water content is 8-10%；Sodium alginate half after drying
Finished product is cooled to 20-30 DEG C in the agitator tank with cooling jacket cooling and packs again.
6) sodium alginate semi-finished product are crushed to 40-80 mesh, are uniformly added into liquid preservative by spraying, complexing is added again
Agent, the mass ratio of the sodium alginate, liquid preservative and complexing agent are 87-96:1-3:3-10；And 50-70min is stirred,
It is cooled to 20-30 DEG C in agitator tank with cooling jacket cooling and refills bag packaging.
The liquid preservative is poly- 2-methyl-4-isothiazolin-3-one compound, poly- 5- chloro-2-methyl -4- isothiazole
Quinoline -3- ketone compound, ten thousand stand that net ZA-100, sterilizing solution DMT, stand erect one or more of GY-511.Described ten thousand found net ZA-
100, sterilizing solution DMT, the GY-511 that stands erect are sterilization antiseptic finished products, have and kill or inhibit all kinds of bacteriums, saccharomycete and mould
The effect of bacterium mass propagation and growth.
The complexing agent is identical as step 3), is four sodium of iminodisuccinic acid (IDS), disodium ethylene diamine tetraacetate
One or more of (EDETATE SODIUM), calgon mixture.It is preferred that group be combined into four sodium of iminodisuccinic acid (IDS) and
The combination of EDETATE SODIUM, ratio 1:1.
It is the stabilization in order to improve graininess sodium alginate semi-finished product that solid preservative is added in the step 4) of the present embodiment
Property, preventing semi-finished product, viscosity declines during storage, and solid preservative constantly consumes during storage.In step 6) by half at
Liquid preservative is added when product sodium alginate milling production finished product, on the one hand can improve product appearance and dissolubility, another party
Face guarantees viscosity stability when product and client use glue.Complexing agent is added again after liquid preservative is added, makes
It plays a role when with sodium alginate finished product, helps to improve water quality, the polyvalent metal ion in complex water improves glue storage
Stability.
Increase the stability of product in the present embodiment, preferred technique has the solid sodium carbonate using 130-180 mesh
Powder improves and neutralizes homogeneity；It is 8-10% that semi-finished product, which are dried to water content,；Cold water is being had before semi-finished product and finished product packing
Cool down in the agitator tank of collet cooling.
Embodiment 1
It is a kind of improve printing and dyeing grade sodium alginate stability process, step be brown alga it is soaking, it is primary washing, disappear
Change, rush dilute, filtering, calcification, decalcification, carries out secondary washing, removing sea using the deionized water that potent iron ion complexing agent is added
Then iron ion in alginic acid, dehydration add sodium carbonate progress solid phase neutralization reaction and obtain sodium alginate, add solid anti-corrosion
Agent, drying, cooling, crushing, is added liquid preservative and solid complexing agent, cooling, packs to obtain finished product granulation.
The kind of the brown alga is kelp, soaking time 3h；
Four sodium of iminodisuccinic acid (IDS) of 0.3% mass is added in deionized water to seaweed acid-water washing after decalcification, sea
Alginic acid and the mass ratio of washing water consumption are 1:15；
Dewatered alginic acid moisture 67%；
88 parts of alginic acids are used in solid phase neutralization reaction, add 12 part of 150 mesh sodium carbonate, after reacting 13min at 50 DEG C,
The preservative benzoic acid paraben esters of sodium alginate quality 0.4% are added, mediates and is granulated；
The water content of sodium alginate is 10% after drying；
Sodium alginate grinding particle size requires 40 mesh；
The poly- 2-methyl-4-isothiazolin-3-one chemical combination of 2 parts of liquid preservatives is added by spraying in 93 parts of sodium alginate powders
Object, is then added 5 parts of four sodium of iminodisuccinic acid (IDS), and stirring is packed after 1 hour.
Sodium alginate prepared by embodiment 1 is compared with comparative example 1, as a result such as table 1, is not had in comparative example 1 wherein
Complexing agent, solid preservative and liquid preservative is added.
The comparison result for the sodium alginate that 1 embodiment 1 of table is prepared with comparative example 1
| 1% viscosity (mpa.s) | pH | Moisture content (%) | Calcium content (%) | Bacterium (CFU/g) | |
| Comparative example 1 | 550 | 7.6 | 14.1 | 0.240 | 2000 |
| Embodiment 1 | 600 | 7.1 | 9.9 | 0 | 200 |
Embodiment 2
It is a kind of improve printing and dyeing grade sodium alginate stability process, step be brown alga it is soaking, it is primary washing, disappear
Change, rush dilute, filtering, calcification, decalcification, carries out secondary washing, removing sea using the deionized water that potent iron ion complexing agent is added
Then iron ion in alginic acid, dehydration add sodium carbonate progress solid phase neutralization reaction and obtain sodium alginate, add solid anti-corrosion
Agent, drying, cooling, crushing, is added liquid preservative and solid complexing agent, cooling, packs to obtain finished product granulation.
The kind of the brown alga is yellow tang, soaking time 4h；
The ethylenediamine tetraacetic of four sodium of iminodisuccinic acid (IDS) and 0.2% mass of 0.2% mass are added in deionized water
For acetic acid disodium (EDETATE SODIUM) to seaweed acid-water washing after decalcification, alginic acid and the mass ratio for washing water consumption are 1:12；
Dewatered alginic acid moisture 68%；
89 parts of alginic acids are used in solid phase neutralization reaction, are added 11 part of 150 mesh sodium carbonate and are neutralized, react at 40 DEG C
After 15min, the preservative Dodecydimethylammonium bronides of sodium alginate quality 0.3% are added, mediates and is granulated；
The moisture of sodium alginate is 8% after drying；
Sodium alginate grinding particle size requires 40 mesh；
1.5 parts of liquid preservatives ten thousand are added by spraying in 91.5 parts of sodium alginate powders and found net ZA-100, are then added 7 parts
Calgon is packed after stirring 1h.
Sodium alginate prepared by embodiment 2 is compared with comparative example 2, as a result such as table 2, is not had in comparative example 2 wherein
Complexing agent, solid preservative and liquid preservative is added.
The comparison result for the sodium alginate that 2 embodiment 2 of table is prepared with comparative example 2
Embodiment 3
It is a kind of improve printing and dyeing grade sodium alginate stability process, step be brown alga it is soaking, it is primary washing, disappear
Change, rush dilute, filtering, calcification, decalcification, carries out secondary washing, removing sea using the deionized water that potent iron ion complexing agent is added
Then iron ion in alginic acid, dehydration add sodium carbonate progress solid phase neutralization reaction and obtain sodium alginate, add solid anti-corrosion
Agent, drying, cooling, crushing, is added liquid preservative and solid complexing agent, cooling, packs to obtain finished product granulation.
The kind of the brown alga is LN algae, soaking time 8h；
Four sodium of iminodisuccinic acid (IDS) of 0.5% mass is added in deionized water to seaweed acid-water washing after decalcification, sea
The mass ratio of alginic acid and washing water is 1:14；
Dewatered alginic acid moisture 67%；
90 parts of alginic acids are used in solid phase neutralization reaction, are added 10 part of 150 mesh sodium carbonate and are neutralized, react at 45 DEG C
After 14min, the preservative paraben esters of sodium alginate quality 0.4% are added, mediates and is granulated；
The moisture of sodium alginate is 9% after drying；
Sodium alginate grinding particle size requires 40 mesh；
1 part of liquid preservative sterilizing solution DMT is added by spraying in 95 parts of sodium alginate powders, 2 parts of imino groups are then added
Four sodium of disuccinic acid (IDS) and 2 parts of EDETATE SODIUMs, stirring are packed after 1 hour.
Printing and dyeing mill is beaten using sodium alginate, and stirring is placed after 2 hours, and wherein the mass ratio of sodium alginate and water is 3:
97；Sodium alginate glue and comparative example 3 prepared by embodiment 3, is compared, as a result with the viscosity rate of descent after placing 5 days
It is wherein no in comparative example 3 that complexing agent, solid preservative and liquid preservative is added such as table 3.
The comparison result for the sodium alginate that 3 embodiment 3 of table is prepared with comparative example 3
Above embodiments are only several in the several preferred embodiment of the present invention, it is noted that the present invention is not limited to
Above-described embodiment；It for those of ordinary skill in the art, still can be to technical solution documented by previous embodiment
It modifies or equivalent replacement of some of the technical features；And these modifications or substitutions, do not make relevant art side
The essence of case is detached from the spirit and scope of claimed technical solution of the invention.
Claims (5)
1. a kind of process for improving printing and dyeing grade sodium alginate stability, which is characterized in that brown alga is soaking, wash, disappear
Change, rush dilute, filtering, calcification, decalcification, using the deionized water that iron ion complexing agent is added washed, be dehydrated, solid phase neutralizes,
Add solid preservative, granulation, drying, cooling, crushing, adding liquid preservative and solid complexing agent, cooling, finished product packing；
It comprises the concrete steps that:
1) brown alga is chosen, 3-10h is soaked in water, then washes, the washing times are 2-4 times, effectively remove surface impurity, institute
The kind for stating brown alga is one or more of yellow tang, kelp or bulk kelp；
2) sodium carbonate is added in the brown alga after washing and carries out digestion reaction, the mass ratio 70-80:20-30 of brown alga and sodium carbonate disappears
It turns to second level to digest to level Four, digestion temperature is 45-60 DEG C, and digestion time is every grade of 1-2h, is digested with defibrination alternately；So
After be diluted with water to obtain glue, it is 70-100 times that dilute multiple is rushed in dilution, and rushing dilute number of seconds control is 70-90 seconds；
3) above-mentioned glue is filtered, is three-stage filtration, strainer mesh number is respectively 20-30 mesh, 130-180 mesh and 300-
400 mesh effectively remove glue impurity；After separating and filtering, calcium chloride solution is added and carries out calcium analysis, hydrochloric acid is added and carries out decalcification；Into
Row washing, washing is using the deionized water that joined complexing agent；After complexing agent is reacted with the metal ion in alginic acid, by metal
Ion is by solid strip into aqueous solution；Metal ion is removed together with water, obtains alginic acid by then press dewatering；After dehydration
Alginic acid water content be 66-68%, the press dewatering squeezed using two-stage screw；
The complexing agent is one or more of four sodium of iminodisuccinic acid, disodium ethylene diamine tetraacetate, calgon
Mixture, additive amount are the 0.1-0.5% of deionized water gross mass, and the mass ratio of alginic acid and water scouring water is 1:5-20；
4) the alginic acid block that above-mentioned water content is 66-68% is added in agitator tank, solid sodium carbonate is then added and carries out in solid phase
Sodium alginate is generated with reaction, neutralization reaction is added solid preservative before proceeding to terminal, mediates and be granulated；
In neutralization reaction, the mass ratio of the alginic acid and sodium carbonate is 87-92:8-13, is reacted under the conditions of 30-50 DEG C, instead
It is 10-15min between seasonable, the pH of final sodium alginate is 6.5-7.5；
The additional amount of the solid preservative accounts for the 0.3-0.5% of sodium alginate quality, the solid preservative be paraben esters,
One or more of the chloro- 3- methylphenol of benzoic acid, Dodecydimethylammonium bronides, 4-, 2,6- xylenol；
5) sodium alginate that above-mentioned neutralization reaction generates, being dried to water content is 8-10%, and the sodium alginate semi-finished product after drying exist
20-30 DEG C is cooled in agitator tank with cooling jacket cooling to pack again；
6) sodium alginate semi-finished product are crushed to 40-80 mesh, are uniformly added into liquid preservative by spraying, complexing agent is added again, institute
The mass ratio for stating sodium alginate, liquid preservative and complexing agent is 87-96:1-3:3-10, and stirs 50-70min, with cold
It is cooled to 20-30 DEG C in the agitator tank of water leg cooling and refills bag packaging；
The liquid preservative is poly- 2-methyl-4-isothiazolin-3-one compound, poly- 5- chloro-2-methyl -4- isothiazoline -
3- ketone compound, ten thousand stand that net ZA-100, sterilizing solution DMT, stand erect one or more of GY-511, the complexing agent and step
3) identical.
2. process according to claim 1, which is characterized in that the granule size of the solid sodium carbonate is 130-
180 mesh.
3. process according to claim 2, which is characterized in that the granule size of the solid sodium carbonate is 150 mesh.
4. process according to claim 1, which is characterized in that the complexing agent be four sodium of iminodisuccinic acid and
Disodium ethylene diamine tetraacetate, its ratio be 1:1.
5. process according to claim 1, which is characterized in that the granule size of the solid preservative is 30-150
Mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180437.3A CN107059439B (en) | 2016-12-20 | 2016-12-20 | A kind of process improving printing and dyeing grade sodium alginate stability |
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| CN108086021B (en) * | 2017-12-26 | 2019-01-29 | 青岛明月海藻集团有限公司 | A kind of printing gum liquid preservative and its preparation method and application |
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| CN101456920A (en) * | 2008-12-02 | 2009-06-17 | 王永昌 | Method for producing high transparent sodium alginate |
| CN101735333A (en) * | 2009-12-31 | 2010-06-16 | 庞作斌 | Method for preparing high-quality sodium alginate |
| CN105386338A (en) * | 2015-12-14 | 2016-03-09 | 青岛明月海藻集团有限公司 | Preparation method of instant sodium alginate printing gum |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456920A (en) * | 2008-12-02 | 2009-06-17 | 王永昌 | Method for producing high transparent sodium alginate |
| CN101735333A (en) * | 2009-12-31 | 2010-06-16 | 庞作斌 | Method for preparing high-quality sodium alginate |
| CN105386338A (en) * | 2015-12-14 | 2016-03-09 | 青岛明月海藻集团有限公司 | Preparation method of instant sodium alginate printing gum |
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Address after: 266400 Yongjun Road 688, Huangdao District, Qingdao City, Shandong Province Patentee after: Qingdao Mingyue Algae Bio-health Technology Co.,Ltd. Address before: No. 46, Zhushan West 5th Road, Huangdao District (formerly Jiaonan City), Qingdao City, Shandong Province, 266400 (Binhai Office) Patentee before: QINGDAO BRIGHT MOON SEAWEED BIOLOGICAL TECHNOLOGY Co.,Ltd. |