CN102011341A - Composite surface sizing agent being capable of replacing internal sizing agent and application thereof - Google Patents
Composite surface sizing agent being capable of replacing internal sizing agent and application thereof Download PDFInfo
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- CN102011341A CN102011341A CN 201010216426 CN201010216426A CN102011341A CN 102011341 A CN102011341 A CN 102011341A CN 201010216426 CN201010216426 CN 201010216426 CN 201010216426 A CN201010216426 A CN 201010216426A CN 102011341 A CN102011341 A CN 102011341A
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Abstract
The invention discloses a composite surface sizing agent being capable of replacing an internal sizing agent and application thereof. The composite surface sizing agent comprises the following components in percent by weight: 50.0-80.0 percent of alkyl ketene dipolymer emulsion, 5.0-10.0 percent of aluminium polychlorid, 5.0-10.0 percent of polystyrene acrylic emulsion and the balance of water. The composite surface sizing agent partially or completely replaces the internal sizing agent, thus the sizing agent utilization ratio during the papermaking is improved, the pollution to a papermaking system and the environment during the sizing is reduced and the cost of the papermaking enterprise is lowered. The invention has the advantages of simple operation, low cost and considerable application prospect. Compared with the prior art, the invention has the advantages of lowering the cost, reducing the concentration of tail water and the cost of the water treatment, cleaning the papermaking system, decreasing the frequency of brushing a paper machine and the end breakage of the paper machine and prolonging the service life of a papermaking net and a carpet.
Description
Technical field
The present invention relates to a kind of compound Cypres that is used for to replace plasm-glue-blending, specifically utilize compound a kind of compound Cypres to be used for to replace the interior sizing agent of papermaking slurry.
Background technology
To control the degree of sizing of paper big by adding internal sizing agent mostly in current domestic each paper plant.Wherein plasm-glue-blending is meant, directly add sizing agent in the slurry in paper-making process (as AKD, ASA, gum rosin), the sizing agent Dispersion of Particles is in slurry system, a plurality of sizing agent grains can form bigger agglomeration group, these agglomeration groups and single sizing agent particle are adsorbed on fiber fines, filler and fiber surface, the online back is kept in the l Water Paper page or leaf along with keeping of these fineves, at drying section, along with the moisture in the page reduces gradually, be subjected to the influencing the sizing agent particles melt of baking temperature and extend at fiber surface, has reactive functional group on the molecule towards fiber, the hydrophobic group part outwards, towards the reactive functional groups of fiber and the cellulosic hydroxyl formation covalent bond that reacts, thereby anchor on the fiber surface, finish the applying glue process of paper.And internal sizing agent runs off with plain boiled water in the slurry the inside, and utilization rate is low, can cause the sizing agent of plain boiled water the inside to be difficult to handle equally, increases cost of water treatment, causes the shortcomings such as pollution of environment.
Therefore,, effectively improve the utilization rate of sizing agent by reducing the number of dropouts of sizing agent in the production process, necessary to clean paper making production and saving papermaking cost.
1, the plasm-glue-blending in the paper making process according to the characteristics of plasm-glue-blending, mainly can be divided into acid applying glue and neutral and alkali applying glue.
A, to use aluminum sulfate when acid applying glue shortcoming is to use, use, equipment such as paper machine are caused certain corrosion at the slant acidity environment.
The environment that B, neutral and alkali applying glue are used is medium-sized environment, and little to the corrosivity of equipment, consumption is less, is beneficial to applying glue.At the neutral and alkali sizing agent, sizing agent alkenyl succinic anhydride (ASA) needs on-the-spot emulsification, also needs conditions such as relevant device, and this production for paper plant has increased workload, and is comparatively strict to the paper machine system requirements that uses.And use alkyl ketene dimer (AKD) to belong to energy and fiber reactivity polymer, but there is certain curing time, that is to say after adding and to react with fiber at once, can not make paper have certain anti-water immediately and resist the ability of liquid infiltration, have that consumption is big, the shortcoming of weak effect.
2, the top sizing of paper, its advantage are that the top sizing process can be near 100% the Cypres that utilizes, and Cypres does not have to run off substantially, and this helps the reuse of paper waste to paper manufacturing systems and environment pollution abatement.
Therefore, seeking the top sizing technology generation is necessary for the plasm-glue-blending technology.
Summary of the invention
The purpose of this invention is to provide a kind of compound Cypres and application thereof that replaces plasm-glue-blending, to overcome the above-mentioned defective that prior art exists.
The compound Cypres that is used for replacing plasm-glue-blending of the present invention comprises following components in weight percentage:
Alkyl ketene dimer emulsion 50.0-80.0%
Polystyrene acrylic emulsion 5.0-10.0%
Aluminium polychloride 5.0-10.0%
Water surplus;
Described alkyl ketene dimer emulsion, the weight solid content of described alkyl ketene dimer emulsion be 10%～30%, 25 ℃ of viscosity be 20～100mPaS, pH is 2～4, can adopt the commercially available prod, rise the AKD403 of new material Co., Ltd neutral sizing agent as east, Shanghai;
Described aluminium polychloride is solid or its aqueous solution, can adopt the commercially available prod, and for example the Shandong, Shandong purifies worker's product;
Described aluminum sulfate is solid or its aqueous solution, can adopt the commercially available prod, for example Zibo masses' product;
The solid content of described polystyrene acrylic emulsion be 25%～50%, 25 ℃ of viscosity be 35～100mPaS, pH is 3～5, can adopt the commercially available prod, for example Shanghai dongsheng New Materials Co., Ltd's trade mark is the product of DS-SS610.
The preparation method who is used for replacing the compound Cypres of internal sizing agent of the present invention is foolproof, can adopt conventional physical mixed method to mix, and can obtain product.
The described compound Cypres that is used for to replace plasm-glue-blending, can replace all or part of internal sizing agent, guarantee that the paper sizing degree does not reduce, the purpose that reach the clean paper making system, reduces environmental pollution, saves production cost, preferred consumption are that absolute dried paper pulp per ton adds the 1.0-7.0 kilogram.
The present invention partially or completely replaces internal sizing agent by compound Cypres, improves sizing agent utilization rate in the paper process, reduces the pollution of applying glue process to paper manufacturing systems and environment, helps reducing the cost of papermaking enterprise.The present invention is simple to operate, and is with low cost, and application prospect is very considerable.Compared with prior art, it is low to have a cost, reduces the concentration of plain boiled water, reduces the cost of water treatment, and the clean paper making system reduces the paper machine brush car frequency, reduces paper machine broken end, prolongs the service life of papermaking wire-cloth and woollen blanket.
The specific embodiment
Among the embodiment, if no special instructions, component all is weight percentage.
Embodiment 1
1.1 at first prepare compound Cypres.Adding weight percent concentration in reactor successively is 20% alkyl ketene dimer emulsion 70%, weight percent concentration is 25% polystyrene acrylic emulsion 10.0%, aluminium polychloride 10%, all the other are water, and adjusting the mixed total solid content of each component is 30%.According to above ratio each component is evenly stirred 10min, obtain compound surface sizing agent emulsion.
1.2 experiment condition:
Neutral sizing agent: the AKD403 of Shanghai dongsheng New Materials Co., Ltd neutral sizing agent.
Aluminium polychloride: the Shandong, Shandong purifies the aluminium polychloride product of worker Co., Ltd.
The polystyrene acrylic emulsion: Shanghai dongsheng New Materials Co., Ltd's trade mark is the product of SS-610.
The paper machine is the long paper machine of the laminated network that make in fabric width 1880mm speed of a motor vehicle 340m/min Shashi
Producing the paper kind is 70g/m
2The xerography body paper
1.3 in the paper-making process, former plasm-glue-blending agent east rises 10 kilograms of/ton paper of AKD403 consumption, Cypres east rises 4 kilograms of/ton paper of SS610 consumption.Experimental technique adds 5 kilograms of/ton paper of compound compound Cypres, and other production technologies are constant, produces the standard method detection that paper detects the Cobb value according to country, draws one group of data.
| Cobb value g/m 2 | |
| East rises AKD403+SS610 | 21.0 |
| Compound Cypres | 19.8 |
By experiment, the sizing efficiency of compound Cypres and AKD neutral sizing agent is suitable, simultaneously original surface sizing agent and neutral sizing agent is replaced, and can normally use on producing.
| Online concentration % | Machine water concentration % | Slurry initial journey retention rate % | Applying glue cost/unit | |
| East rises AKD403+SS610 | 0.65 | 0.15 | 76.9 | 10*3.8+4*7＝66 |
| Compound Cypres | 0.65 | 0.11 | 83.1 | 5*9＝45 |
By experiment, use compound Cypres can reduce the concentration of plain boiled water, improve the initial journey retention rate of slurry, thereby reach the clean paper making system, reduce the pollution of mthod of white water from paper making, 21 yuan of/ton paper only can save production cost aspect applying glue.
1.5 conclusion: by result of the test as can be seen, the sizing efficiency of compound Cypres and AKD neutral sizing agent is suitable, simultaneously original surface sizing agent and neutral sizing agent is replaced, and can normally use on producing.Use compound Cypres can reduce the concentration of plain boiled water, improve the initial journey retention rate of slurry, thereby reach the clean paper making system, reduce the pollution of mthod of white water from paper making, only aspect applying glue, can save production cost 21 yuan.
Reduce the concentration of plain boiled water in addition in addition, reduce the cost of water treatment, the clean paper making system reduces the paper machine brush car frequency, reduces paper machine broken end, the potential incomes such as service life that prolong papermaking wire-cloth and woollen blanket.
Embodiment 2
1.1 at first prepare compound Cypres.Adding mass percent concentration in reactor successively is 20% alkyl ketene dimer emulsion 65%, mass percent concentration is 25% polystyrene acrylic emulsion 6.0%, aluminium polychloride 10%, all the other are water, and adjusting the mixed total solid content of each component is 30%.According to above ratio each component is evenly stirred 10min, obtain compound surface sizing agent emulsion.
1.2 experiment condition:
Neutral sizing agent: the AKD403 of Shanghai dongsheng New Materials Co., Ltd neutral sizing agent.
Aluminium polychloride: the Shandong, Shandong purifies the aluminium polychloride product of worker Co., Ltd.
Aluminum sulfate: the aluminum sulfate product of the popular company of Shandong Zibo.
The polystyrene acrylic emulsion: Shanghai dongsheng New Materials Co., Ltd's trade mark is the product of SS-610.
The paper machine is the long paper machine of the laminated network that make in fabric width 2640mm speed of a motor vehicle 410m/min Shashi
Producing the paper kind is 60-80g/m
2Two-sided hectograph paper
1.3 in the paper-making process, former plasm-glue-blending agent east rises 12 kilograms of/ton paper of AKD403 consumption, starch reinforcing agent (good general company) 2 kilograms of/ton paper of consumption.Experimental technique adds 5 kilograms of/ton paper of compound compound Cypres, and other production technologies are constant, produces the standard method detection that paper detects the Cobb value according to country, draws one group of data.
| Cobb value g/m 2 | Surface strength m/s | |
| East rises AKD403+ starch reinforcing agent | 22.0 | 1.25 |
| Compound Cypres | 23.2 | 1.22 |
By experiment, the sizing efficiency of compound Cypres and AKD neutral sizing agent is suitable, and surface strength of paper is close, and simultaneously ative starch reinforcing agent and neutral sizing agent is replaced, and can normally use on producing.
| Online concentration % | Machine water concentration % | Slurry initial journey retention rate % | Applying glue cost/unit | |
| East rises AKD403+ starch reinforcing agent | 0.60 | 0.12 | 80.0 | 12*3.8+2*7.5＝60.6 |
| Compound Cypres | 0.60 | 0.10 | 83.3 | 5*9＝45 |
By experiment, use compound Cypres can reduce the concentration of plain boiled water, improve the initial journey retention rate of slurry, thereby reach the clean paper making system, reduce the pollution of mthod of white water from paper making, 15.6 yuan of/ton paper can save production cost aspect applying glue.
1.5 conclusion: by result of the test as can be seen, the sizing efficiency of compound Cypres and AKD neutral sizing agent is suitable, and surface strength of paper is close, and simultaneously ative starch reinforcing agent and neutral sizing agent is replaced, and can normally use on producing.Use compound Cypres can reduce the concentration of plain boiled water, improve the initial journey retention rate of slurry, thereby reach the clean paper making system, reduce the pollution of mthod of white water from paper making, only aspect applying glue, can save production cost 15.6 yuan.
Reduce the concentration of plain boiled water in addition in addition, reduce the cost of water treatment, the clean paper making system reduces the paper machine brush car frequency, reduces paper machine broken end, the potential incomes such as service life that prolong papermaking wire-cloth and woollen blanket.
Claims (4)
1. be used for replacing the compound Cypres of plasm-glue-blending, it is characterized in that, comprise following components in weight percentage:
Alkyl ketene dimer emulsion 50.0-80.0%
Aluminium polychloride 5.0-10.0%
Polystyrene acrylic emulsion 5.0-10.0%
Water surplus.
2. the compound Cypres that is used for replacing plasm-glue-blending according to claim 1 and 2 is characterized in that, the weight solid content of described alkyl ketene dimer emulsion is that 10%～30%, 25 ℃ of viscosity are 20～100mPaS, and pH is 2～4.
3. the compound Cypres that is used for replacing plasm-glue-blending according to claim 1 and 2 is characterized in that, the solid content of described polystyrene acrylic emulsion be 25%～50%, 25 ℃ of viscosity be 35～100mPaS, pH is 3～5.
4. according to each described application that is used for to replace the compound Cypres of plasm-glue-blending of claim 1～3, it is characterized in that all or part of replacement internal sizing agent.
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| CN 201010216426 CN102011341A (en) | 2010-06-29 | 2010-06-29 | Composite surface sizing agent being capable of replacing internal sizing agent and application thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864686A (en) * | 2012-09-29 | 2013-01-09 | 上海东升新材料有限公司 | Sizing agent emulsion and preparation method for same |
| CN105696417A (en) * | 2016-04-26 | 2016-06-22 | 齐鲁工业大学 | Preparation method of AKD emulsion free of surface active agent |
| US10227731B2 (en) | 2010-11-02 | 2019-03-12 | Ecolab Usa Inc. | Emulsification of alkenyl succinic anhydride with an amine-containing homopolymer of copolymer |
| CN110885403A (en) * | 2018-09-11 | 2020-03-17 | 上海东升新材料有限公司 | Modified starch emulsifier and AKD emulsion prepared by adopting same |
| US10889939B2 (en) | 2015-12-25 | 2021-01-12 | Ecolab Usa Inc. | Sizing method for making paper and paper prepared thereof |
| CN112593450A (en) * | 2020-12-03 | 2021-04-02 | 北流市裕瑞造纸助剂有限公司 | AKD sizing agent and preparation method and application thereof |
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| CN1977081A (en) * | 2004-06-29 | 2007-06-06 | 西巴特殊化学品控股有限公司 | Product for use in papermaking and preparation thereof |
| CN101381974A (en) * | 2008-09-27 | 2009-03-11 | 上海东升新材料有限公司 | Composite sizing agent for coating paper in machine and sizing method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10227731B2 (en) | 2010-11-02 | 2019-03-12 | Ecolab Usa Inc. | Emulsification of alkenyl succinic anhydride with an amine-containing homopolymer of copolymer |
| CN102864686A (en) * | 2012-09-29 | 2013-01-09 | 上海东升新材料有限公司 | Sizing agent emulsion and preparation method for same |
| US10889939B2 (en) | 2015-12-25 | 2021-01-12 | Ecolab Usa Inc. | Sizing method for making paper and paper prepared thereof |
| CN105696417A (en) * | 2016-04-26 | 2016-06-22 | 齐鲁工业大学 | Preparation method of AKD emulsion free of surface active agent |
| CN105696417B (en) * | 2016-04-26 | 2017-09-19 | 齐鲁工业大学 | A kind of preparation method of the AKD emulsions of surfactant-free |
| CN110885403A (en) * | 2018-09-11 | 2020-03-17 | 上海东升新材料有限公司 | Modified starch emulsifier and AKD emulsion prepared by adopting same |
| CN112593450A (en) * | 2020-12-03 | 2021-04-02 | 北流市裕瑞造纸助剂有限公司 | AKD sizing agent and preparation method and application thereof |
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Application publication date: 20110413 |