CN102363939A - Guar gum surface sizing agent and preparation method thereof - Google Patents
Guar gum surface sizing agent and preparation method thereof Download PDFInfo
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- CN102363939A CN102363939A CN2011101830487A CN201110183048A CN102363939A CN 102363939 A CN102363939 A CN 102363939A CN 2011101830487 A CN2011101830487 A CN 2011101830487A CN 201110183048 A CN201110183048 A CN 201110183048A CN 102363939 A CN102363939 A CN 102363939A
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- guar gum
- surface sizing
- sizing agent
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Abstract
The invention provides a guar gum surface sizing agent and a preparation method thereof. The preparation method comprises the following steps of: (1) dropwise adding an oxidant aqueous solution into an organic solvent containing guar gum raw powder, controlling the pH of a system to 2-4 after dropwise adding, and reacting to obtain guar gum oxide; and (2) adding a viscosity stabilizer into the guar gum oxide obtained in the step (1) with the amount which is 0.1-3 percent based on the oven dry weight of guar gum, adjusting the pH of the system to 6-8, reacting, and collecting the guar gum surface sizing agent from a reaction product. Due to the adoption of a paper surface sizing agent, the consumption of papermaking fiber can be lowered, the glue making process is simplified, the labor intensity is lowered, and the printing performance and the printing strength of the paper surface sizing can be improved; and the guar gum surface sizing agent has the advantages of small impurity content and convenience for applying during preparation of a glue solution.
Description
Technical field
The present invention relates to a kind of guar surface sizing agent and preparation method thereof.
Background technology
The kind of the employed Cypres of paper-making industry is a lot; Source with chemicals can be divided into: natural polymer and synthetic high polymer Cypres, Cypres commonly used has: the natural polymer Cypres promptly: cationic starch, anionic phosphate starch, oxyalkyl starch, dialdehyde starch, acetic acid esters starch, enzyme converted starch, acidified starch, animal glue, modified cellulose, alginate etc.; The synthetic high polymer Cypres has: polyvinyl alcohol (PVA), poly amic acid (PAM), polyurethane, AKD class etc.
At present; When producing two glue printing paper; Most surface sizing techniques that use are that natural polymer Cypres and synthetic high polymer sizing agent is formulated in the certain process ratio; As being: cationic starch: polyvinyl alcohol (PVA) according to weight ratio: surperficial reinforcing agent (TSI)=78: 16: 10, the weight percent concentration of glue is 3-4%, the applying glue temperature is 50-80 ℃.
The preparing process of this sizing agent is complicated; Workload is big; At first to prepare cationic starch, polyvinyl alcohol glue in disclosing, filter, be placed on one to three kinds of glue according to technological requirement then and join mixed preparing Cypres in the glue bucket through 80 purpose screens at the glue that boils separately; Again be pumped in the accumulator tank store subsequent use, at last according to paper kind needs, on the paper sizing machine, paper is carried out the applying glue processing with pumping.The prepared existing artifical influence factor of glue agent of this adhesive-preparing technology is more; Sizing material concentration is unstable, and workman's manipulation strength is higher, during the page gluing; Glue-spread is unstable; When paper printed in the printing house, phenomenons such as hair, dry linting appearred falling in regular meeting, and the surface printing intensity of paper is relatively poor.
Summary of the invention
The purpose of this invention is to provide a kind of guar surface sizing agent and preparation method thereof, to overcome the above-mentioned shortcoming that prior art exists.
The preparation method of guar surface sizing agent of the present invention comprises the steps:
(1) aqueous oxidizing agent solution is added dropwise to the organic solvent that contains the former powder of guar gum, the dropping time is 20-45 minute, and after dropwising, hierarchy of control p H is 2-4, and 50～70 ℃ were reacted 2-5 hour, got the oxidation guar gum;
The former powder of said guar gum is weight percentage 1% solution viscosity less than 5000 former powder;
Said solvent is ethanol, methyl alcohol, isopropyl alcohol or propyl alcohol etc., preferred alcohol or isopropyl alcohol, and the weight ratio of solvent and the former powder of guar gum is 1～2: 1;
Described oxidant is more than one in Peracetic acid, peroxosulphuric, peroxide phosphoric acid, organic peroxide acid or the acid anhydrides, preferred peroxosulphuric or Peracetic acid, and its addition is the 0.1-1% of the former grain weight amount of guar gum;
The weight concentration of aqueous oxidizing agent solution is 20～30%;
(2) viscosity stabiliser is added the oxidation guar gum of step (1); Addition is the 0.1-3% of guar gum oven dry weight, and the p H that adds the NaOH regulation system simultaneously is 6-8, is warming up to 40-60 ℃; Described guar surface sizing agent is collected in reaction 1-3 hour then from product;
Term " over dry " refers to not moisture.
Described viscosity stabiliser is more than one in vinylacetate, succinyl oxide, dicarboxylic acids half acid anhydride or the sodium phosphate trimer;
The present invention provides a kind of employing oxidation guar gum as paper surface sizing agent, reaches to be lowered into the consumption of paper fiber, to simplify adhesive-preparing technology, to reduce labour intensity, can to improve the printing performance of paper for surface sizing and to print the intensity purpose, and product of the present invention is as Cypres; Has preparation glue solution; Impurity content is few, and convenient in application has solved hair, dry linting problem in the application; Can be lowered into the consumption of paper fiber; Simplify adhesive-preparing technology, reduce labour intensity, thereby improve the printing performance and printing intensity of paper surface.
The specific embodiment
Among the embodiment, if no special instructions, the consumption of component is weight.
Embodiment 1
In the four-hole boiling flask that thermometer, mechanical agitation, logical nitrogen device and Dropping feeder are housed, add 200 parts of ethanol, open and stir, under agitation add 200 parts of guar gums; Disperse to be warming up to 50 ℃ after 10 minutes, with 10 parts of the peroxosulphuric aqueous solution of the 20wt% for preparing; Be added dropwise in the four-hole boiling flask, the dropping time is 20 minutes, after dropwising; Reaction is 5 hours under this temperature, and the pH of course of reaction system is 2.0, is cooled to room temperature and gets the oxidation guar gum;
In above-mentioned reaction system, add 0.5 part of vinylacetate, and to use weight concentration be the p H value to 8.0 of 30% sodium hydroxide solution regulator solution, be warming up to 40 ℃, reacted 1 hour, be cooled to 25 ℃, suction filtration, washing, drying, sieve product of the present invention.
Embodiment 2
In the four-hole boiling flask that thermometer, mechanical agitation, logical nitrogen device and Dropping feeder are housed, add 300 parts of ethanol, open and stir, under agitation add 200 parts of guar gums; Disperse to be warming up to 60 ℃, with 5 parts of the 25wt% peroxide acetate aqueous solutions for preparing after 10 minutes; Be added dropwise in the four-hole boiling flask, the dropping time is 30 minutes, after dropwising; Reaction is 3 hours under this temperature, and the p H of course of reaction system is 3.0, is cooled to room temperature and gets the oxidation guar gum;
In above-mentioned reaction system, add 2 parts of sodium phosphate trimers, and to use weight concentration be the p H value to 6.5 of 20% sodium hydroxide solution regulator solution, be warming up to 40 ℃, reacted 2 hours, be cooled to 25 ℃, suction filtration, washing, drying, sieve product of the present invention;
Embodiment 3
In the four-hole boiling flask that thermometer, mechanical agitation, logical nitrogen device and Dropping feeder are housed, add 400 parts of ethanol, open and stir, under agitation add 200 parts of guar gums; Disperse to be warming up to 70 ℃ after 5 minutes,, be added dropwise in the four-hole boiling flask 15 parts of the 30wt% peroxide phosphoric acid solution for preparing;, the dropping time is 45 minutes, after dropwising; Reaction is 5 hours under this temperature, and the p H of course of reaction system is 4.0, is cooled to room temperature and gets the oxidation guar gum;
In above-mentioned reaction system, add 5 parts of succinyl oxides, and to use weight concentration be the p H value to 7.0 of 30% sodium hydroxide solution regulator solution, be warming up to 50 ℃, reacted 1 hour, be cooled to 25 ℃, suction filtration, washing, drying, sieve product of the present invention.
Embodiment 4
With 20 parts product of the present invention, at room temperature be dispersed in 380 parts of water, after under agitation disperseing, dissolving is 1 hour under the room temperature, promptly gets weight concentration and be 5% applying glue liquid; After crossing 80 order mesh screens, be pumped in the storing container and store for future use;
(2) gluing condition:
Paper machine fabric width: 3150mm; Paper machine speed: 350m/min; Wet end furnish: softwood pulp 40%; Hardwood pulp 60%; Amount of filler: 20%; Applying glue mode: size press; Last gum concentration: 5%.
(3) effect:
| Numbering | Sizing agent | Surface strength | Surface strength raising rate % | Degree of sizing g/m |
| 1 | Blank | 12 | ----- | 21 |
| 1 | Oxidized starch | 14 | 16.7 | 22 |
| 2 | Embodiment 1 | 16 | 33.3 | 22 |
| 3 | Embodiment 2 | 15 | 25 | 22 |
| 4 | Embodiment 3 | 15.7 | 30.8 | 22 |
Can find out that from above experiment product course of dissolution of the present invention is simple, compares with oxidized starch, surface strength has bigger raising.
Claims (8)
1. the preparation method of guar surface sizing agent is characterized in that, comprises the steps:
(1) aqueous oxidizing agent solution is added dropwise to the organic solvent that contains the former powder of guar gum, after dropwising, hierarchy of control p H is 2-4, and reaction gets the oxidation guar gum;
(2) viscosity stabiliser is added the oxidation guar gum of step (1), addition is the 0.1-3% of guar gum oven dry weight, and the p H of regulation system is 6-8 simultaneously, and described guar surface sizing agent is collected in reaction then from product.
2. method according to claim 1 is characterized in that, in the step (1); Aqueous oxidizing agent solution is added dropwise to the organic solvent that contains the former powder of guar gum, and the dropping time is 20-45 minute, after dropwising; Hierarchy of control p H is 2-4, and 50～70 ℃ were reacted 2-5 hour.
3. method according to claim 1 is characterized in that, in the step (2), the p H that adds the NaOH regulation system is 6-8, is warming up to 40-60 ℃, reaction 1-3 hour.
4. method according to claim 1 is characterized in that, said solvent is ethanol, methyl alcohol, isopropyl alcohol or propyl alcohol, and the weight ratio of solvent and the former powder of guar gum is 1～2: 1.
5. method according to claim 4 is characterized in that, described oxidant is more than one in Peracetic acid, peroxosulphuric, peroxide phosphoric acid, organic peroxide acid or the acid anhydrides, and its addition is the 0.1-1% of the former grain weight amount of guar gum.
6. according to the described method of claim 1, it is characterized in that described viscosity stabiliser is more than one in vinylacetate, succinyl oxide, dicarboxylic acids half acid anhydride or the sodium phosphate trimer.
7. the guar surface sizing agent for preparing according to each said method of claim 1～6.
8. the application of guar surface sizing agent according to claim 7 is characterized in that, is used for the top sizing of paper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110183048 CN102363939B (en) | 2011-06-30 | 2011-06-30 | Guar gum surface sizing agent and preparation method thereof |
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| CN 201110183048 CN102363939B (en) | 2011-06-30 | 2011-06-30 | Guar gum surface sizing agent and preparation method thereof |
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| CN102363939A true CN102363939A (en) | 2012-02-29 |
| CN102363939B CN102363939B (en) | 2013-11-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827300A (en) * | 2012-08-30 | 2012-12-19 | 华南理工大学 | Preparation method and application of hydrophobic modified guar gum |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004314395A (en) * | 2003-04-15 | 2004-11-11 | Canon Inc | Sizing agent and recording paper sheet using this |
| CN1844558A (en) * | 2006-03-14 | 2006-10-11 | 苏州润宝化学品有限公司 | Guar gum natural silk printing paste and method for preparing same |
| CN101514233A (en) * | 2008-12-30 | 2009-08-26 | 上海东升新材料有限公司 | Amphoteric guar gum, preparation method and application thereof |
| CN101555663A (en) * | 2009-03-31 | 2009-10-14 | 江西博大化工有限公司 | Modified vegetable gum sizing material and preparation technique thereof |
| CN101654892A (en) * | 2009-08-24 | 2010-02-24 | 牡丹江恒丰纸业股份有限公司 | Preparation method of ultrafine particles of cation guar gum |
-
2011
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004314395A (en) * | 2003-04-15 | 2004-11-11 | Canon Inc | Sizing agent and recording paper sheet using this |
| CN1844558A (en) * | 2006-03-14 | 2006-10-11 | 苏州润宝化学品有限公司 | Guar gum natural silk printing paste and method for preparing same |
| CN101514233A (en) * | 2008-12-30 | 2009-08-26 | 上海东升新材料有限公司 | Amphoteric guar gum, preparation method and application thereof |
| CN101555663A (en) * | 2009-03-31 | 2009-10-14 | 江西博大化工有限公司 | Modified vegetable gum sizing material and preparation technique thereof |
| CN101654892A (en) * | 2009-08-24 | 2010-02-24 | 牡丹江恒丰纸业股份有限公司 | Preparation method of ultrafine particles of cation guar gum |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827300A (en) * | 2012-08-30 | 2012-12-19 | 华南理工大学 | Preparation method and application of hydrophobic modified guar gum |
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Effective date of registration: 20190822 Address after: Room 322, Building 32, 680 Guiping Road, Xuhui District, Shanghai, 2003 Patentee after: Shanghai Changfa new materials Co., Ltd. Address before: Room 701, Building 388 Tianlin Road, Xuhui District, Shanghai, 2002 Patentee before: Shanghai Dongsheng new material Co., Ltd. |
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Application publication date: 20120229 Assignee: JINING MINGSHENG NEW MATERIAL Co.,Ltd. Assignor: SHANGHAI CHANGFA NEW MATERIAL Co.,Ltd. Contract record no.: X2021310000048 Denomination of invention: Guar gum surface sizing agent and its preparation method Granted publication date: 20131106 License type: Common License Record date: 20211215 |