CN103306156A - Production process of high-strength corrugated base paper - Google Patents
Production process of high-strength corrugated base paper Download PDFInfo
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- CN103306156A CN103306156A CN2013102154353A CN201310215435A CN103306156A CN 103306156 A CN103306156 A CN 103306156A CN 2013102154353 A CN2013102154353 A CN 2013102154353A CN 201310215435 A CN201310215435 A CN 201310215435A CN 103306156 A CN103306156 A CN 103306156A
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Abstract
The invention provides a production process of high-strength corrugated base paper. The production process comprises the following steps of: pulping for first time to prepare high-concentration slurry; combining and purifying to obtain long fiber pulp; conveying the long fiber pulp into a heat dispersion system to be dispersed; pulping the long fiber pulp obtained by the second step for the second time; adding an addition agent, wherein based on the weight of absolute dry pulp, the addition agent comprises the following components by weight percent: 8-25% of a sizing agent and 25-40% of modified lignin; filtering water and making paper with the pulp; flowing out mixed pulp obtained by the step four from a pulp flowing box to a circulating forming net to be uniformly distributed and interweaved; carrying out subsequent treatment; and sequentially carrying out squeezing and dehydration, sizing, drying, coiling, recoiling and splitting treatment on wet paper obtained by the step five. The invention provides the production process of the high-strength corrugated base paper, is simple to operate and is low in cost; compared with the prior art, the ring crush index of the prepared high-strength corrugated base paper can be improved by 30-40% at maximum.
Description
Technical field
The present invention relates to the production technology in the manufacturing technology field, particularly a kind of high-strength corrugated base paper of the high-strength corrugated base paper in the paper industry.
Background technology
Corrugated paper is a kind of package paper commonly used, and market demand is very large, and the intensity of corrugated board and the quality of fluting medium and consumption are closely related.Patent 201110422913.9 discloses a kind of production process of high-strength corrugated cardboards, it is the resin glue stick more than 2% that adds the weight of water in the Corn Starch Glue in the Corn Starch Glue of corrugated paper board production line, can improve corrugated board pop strength, expose intensity, compression strength and side pressure strength, reduce the consumption of fluting medium, reduced cost.But this technique is to carry out in by production of fluting base paper corrugated board process, and fluting medium is not improved, and therefore this technique has certain limitation to the improvement of the physical property of corrugated board.In addition, when existing high-strength corrugated base paper is produced, mostly adopt the repeatedly waste paper of recycling, after passing through repeated multiple times utilization in such waste paper, cellulose chain is shorter and shorter, the high-strength corrugated base paper intensity of producing take such waste paper as raw material is very poor, and ring crush index is very low, can't satisfy the quality demand of day by day strict packing business.Therefore, people expect a kind of production technology of high-quality high-strength corrugated base paper.
Summary of the invention
The present invention proposes a kind of production technology of high-strength corrugated base paper, aim to provide a kind of technique high-quality production process of high-strength corrugated base paper simple, with low cost, reduce the production cost of high-strength corrugated base paper, improve the quality of high-strength corrugated base paper.
A kind of production technology of high-strength corrugated base paper comprises the steps:
The first step: once making beating:
Imported waste paper is mixed with domestic waste paper, total waste paper is placed hydrabrusher, add the water size degradation and make high concentration slurry;
Second step: combination purification:
The slurry that the first step obtains is processed with one-level, secondary desander combination purification successively, obtained long stuff; Long stuff is sent into hot decentralized system to be disperseed;
The 3rd step: secondary making beating:
The long stuff that second step is obtained carries out the secondary making beating;
The 4th step: add auxiliary agent:
Add auxiliary agent in the 3rd slurry that obtain of step, the weight ratio that each component addition accounts for absolute dry pulp in the described auxiliary agent is respectively: sizing agent 8-25% and modified lignin resin 25-40%;
The 5th step: drainage is manufactured paper with pulp
The 4th mixed slurry that obtain of step is flowed out to from head box evenly distribute on the forming net of circulation and interweave;
The 6th step: subsequent treatment
With the 5th l Water Paper that obtain of step carry out successively press dewatering, applying glue, dry, batch, rewinding and cut processing, finally obtain high-strength corrugated base paper.
As a kind of preferred technical scheme, imported waste paper and domestic waste paper comprise: the weight ratio that one or more in old and useless newspaper, waste and old books, waste paper board or the waste and old paper in the office, imported waste paper account for total waste paper is 30-50%.
As a kind of preferred technical scheme, the stock quality concentration that obtains in the first step is 5%.
As a kind of preferred technical scheme, the long stuff mass concentration that obtains in the 3rd step is 4-6%, beating degree 30-40 ° of SR.
As a kind of preferred technical scheme, the sizing agent in the 4th step comprises: one or more in modified starch, aluminum sulfate or the aluminium polychloride.
As a kind of preferred technical scheme, the high-strength corrugated base paper ring crush index of this explained hereafter is 9.1-10.5Nm/g.
The production technology of a kind of high-strength corrugated base paper that the present invention proposes, easy to operate, with low cost, the auxiliary agent that comprises sizing agent and modified lignin resin by interpolation, so that the ring crush index of high-strength corrugated base paper has compared with prior art improved 30-40%, reduce the production cost of high-strength corrugated base paper, improved the quality of high-strength corrugated base paper.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of the production technology of a kind of high-strength corrugated base paper of proposing of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1: a kind of production technology of high-strength corrugated base paper comprises the steps:
The first step: once making beating:
Imported waste paper is mixed with domestic waste paper, total waste paper is placed hydrabrusher, add the water size degradation and make high concentration slurry;
Second step: combination purification:
The slurry that the first step obtains is processed with one-level, secondary desander combination purification successively, obtained long stuff; Long stuff is sent into hot decentralized system to be disperseed;
The 3rd step: secondary making beating:
The long stuff that second step is obtained carries out the secondary making beating;
The 4th step: add auxiliary agent:
Add auxiliary agent in the 3rd slurry that obtain of step, the weight ratio that each component addition accounts for absolute dry pulp in the described auxiliary agent is respectively: sizing agent 8-25% and modified lignin resin 25-40%;
The 5th step: drainage is manufactured paper with pulp
The 4th mixed slurry that obtain of step is flowed out to from head box evenly distribute on the forming net of circulation and interweave;
The 6th step: subsequent treatment
With the 5th l Water Paper that obtain of step carry out successively press dewatering, applying glue, dry, batch, rewinding and cut processing, finally obtain high-strength corrugated base paper.
During paper production, in order to obtain colory cellulose paper, to remove the lignin that exists in the string as far as possible, and paper is through after repeatedly reusing, cellulose is subject to very large destruction, it is shorter and shorter that cellulose chain can become, and very poor with the high-strength corrugated paper intensity that such waste paper resource is produced, ring crush index is very low; Lignin, energy and shorter cellulose well combine after modification, improve the quality of fluting medium; The present invention is by adding the auxiliary agent that comprises sizing agent and modified lignin resin in production technology, so that the high-strength corrugated base paper that makes, no matter intensity or ring crush index all is improved, when the weight ratio that accounts for absolute dry pulp when sizing agent and modified lignin resin was respectively 8-25% and 25-40%, the ring crush index of the high-strength corrugated base paper that obtains had compared with prior art improved 30-40%.
Another embodiment of the present invention, as a kind of preferred technical scheme, imported waste paper and domestic waste paper comprise: the weight ratio that one or more in old and useless newspaper, waste and old books, waste paper board or the waste and old paper in the office, imported waste paper account for total waste paper is 30-50%.
Another embodiment of the present invention, as a kind of preferred technical scheme, the stock quality concentration that obtains in the first step is 5%.
Another embodiment of the present invention, as a kind of preferred technical scheme, the long stuff mass concentration that obtains in the 3rd step is 4-6%, beating degree 30-40 ° of SR.
Another embodiment of the present invention, as a kind of preferred technical scheme, the sizing agent in the 4th step comprises: one or more in modified starch, aluminum sulfate or the aluminium polychloride.
Another embodiment of the present invention, as a kind of preferred technical scheme, the ring crush index of the high-strength corrugated base paper of this explained hereafter is 9.1-10.5Nm/g.
Embodiment 1
A kind of production technology of high-strength corrugated base paper comprises the steps:
The first step: once making beating:
Imported waste paper is mixed with domestic waste paper, and imported waste paper and domestic waste paper comprise: the weight ratio that one or more in old and useless newspaper, waste and old books, waste paper board or the waste and old paper in the office, imported waste paper account for total waste paper is 30%; Total waste paper is placed hydrabrusher, and adding the water size degradation, to make mass concentration be 5% slurry;
Second step: combination purification:
The slurry that the first step obtains is processed with one-level, secondary desander combination purification successively, obtained long stuff; Long stuff is sent into hot decentralized system to be disperseed;
The 3rd step: secondary making beating:
The long stuff that second step is obtained carries out the secondary making beating, and 30 ° of SR of beating degree finally obtain mass concentration and be 4% long stuff;
The 4th step: add auxiliary agent:
Add auxiliary agent in the 3rd slurry that obtain of step, the weight ratio that each component addition accounts for absolute dry pulp in the auxiliary agent is respectively: modified starch 8% and modified lignin resin 25%;
The 5th step: drainage is manufactured paper with pulp
The 4th mixed slurry that obtain of step is flowed out to from head box evenly distribute on the forming net of circulation and interweave;
The 6th step: subsequent treatment
With the 5th l Water Paper that obtain of step carry out successively press dewatering, applying glue, dry, batch, rewinding and cut processing, finally obtain high-strength corrugated base paper.
After tested, the technical parameter of prepared high-strength corrugated base paper is as follows: flat crushing strength 92N, fracture length 6.9km, ring crush index 10.1Nm/g, side pressure strength 754N/m, compared with prior art, various technical indicators have had raising, and especially ring crush index has nearly improved 35%.
Embodiment 2
A kind of production technology of high-strength corrugated base paper comprises the steps:
The first step: once making beating:
Imported waste paper is mixed with domestic waste paper, and imported waste paper and domestic waste paper comprise: the weight ratio that one or more in old and useless newspaper, waste and old books, waste paper board or the waste and old paper in the office, imported waste paper account for total waste paper is 50%; Total waste paper is placed hydrabrusher, and adding the water size degradation, to make mass concentration be 5% slurry;
Second step: combination purification:
The slurry that the first step obtains is processed with one-level, secondary desander combination purification successively, obtained long stuff; Long stuff is sent into hot decentralized system to be disperseed;
The 3rd step: secondary making beating:
The long stuff that second step is obtained carries out the secondary making beating, and 40 ° of SR of beating degree finally obtain mass concentration and be 6% long stuff;
The 4th step: add auxiliary agent:
Add auxiliary agent in the 3rd slurry that obtain of step, the weight ratio that each component addition accounts for absolute dry pulp in the auxiliary agent is respectively: aluminium polychloride 25% and modified lignin resin 40%;
The 5th step: drainage is manufactured paper with pulp
The 4th mixed slurry that obtain of step is flowed out to from head box evenly distribute on the forming net of circulation and interweave;
The 6th step: subsequent treatment
With the 5th l Water Paper that obtain of step carry out successively press dewatering, applying glue, dry, batch, rewinding and cut processing, finally obtain high-strength corrugated base paper.
After tested, the technical parameter of prepared high-strength corrugated base paper is as follows: flat crushing strength 93N, fracture length 6.7km, ring crush index 9.1Nm/g, side pressure strength 751N/m, compared with prior art, various technical indicators have had raising, and especially ring crush index has nearly improved 20%.
Embodiment 3
A kind of production technology of high-strength corrugated base paper comprises the steps:
The first step: once making beating:
Imported waste paper is mixed with domestic waste paper, and imported waste paper and domestic waste paper comprise: the weight ratio that one or more in old and useless newspaper, waste and old books, waste paper board or the waste and old paper in the office, imported waste paper account for total waste paper is 33%; Total waste paper is placed hydrabrusher, and adding the water size degradation, to make mass concentration be 5% slurry;
Second step: combination purification:
The slurry that the first step obtains is processed with one-level, secondary desander combination purification successively, obtained long stuff; Long stuff is sent into hot decentralized system to be disperseed;
The 3rd step: secondary making beating:
The long stuff that second step is obtained carries out the secondary making beating, and 34 ° of SR of beating degree finally obtain mass concentration and be 4.5% long stuff;
The 4th step: add auxiliary agent:
Add auxiliary agent in the 3rd slurry that obtain of step, the weight ratio that each component addition accounts for absolute dry pulp in the auxiliary agent is respectively: aluminum sulfate 15% and modified lignin resin 30%;
The 5th step: drainage is manufactured paper with pulp
The 4th mixed slurry that obtain of step is flowed out to from head box evenly distribute on the forming net of circulation and interweave;
The 6th step: subsequent treatment
With the 5th l Water Paper that obtain of step carry out successively press dewatering, applying glue, dry, batch, rewinding and cut processing, finally obtain high-strength corrugated base paper.
After tested, the technical parameter of prepared high-strength corrugated base paper is as follows: flat crushing strength 98N, fracture length 6.5km, ring crush index 10.5Nm/g, side pressure strength 745N/m, compared with prior art, various technical indicators have had raising, and especially ring crush index has nearly improved 40%.
Embodiment 4
A kind of production technology of high-strength corrugated base paper comprises the steps:
The first step: once making beating:
Imported waste paper is mixed with domestic waste paper, and imported waste paper and domestic waste paper comprise: the weight ratio that one or more in old and useless newspaper, waste and old books, waste paper board or the waste and old paper in the office, imported waste paper account for total waste paper is 45%; Total waste paper is placed hydrabrusher, and adding the water size degradation, to make mass concentration be 5% slurry;
Second step: combination purification:
The slurry that the first step obtains is processed with one-level, secondary desander combination purification successively, obtained long stuff; Long stuff is sent into hot decentralized system to be disperseed;
The 3rd step: secondary making beating:
The long stuff that second step is obtained carries out the secondary making beating, and 36 ° of SR of beating degree finally obtain mass concentration and be 5% long stuff;
The 4th step: add auxiliary agent:
Add auxiliary agent in the 3rd slurry that obtain of step, the weight ratio that each component addition accounts for absolute dry pulp in the auxiliary agent is respectively: sizing agent 20% and modified lignin resin 35%, and sizing agent comprises equiponderant modified starch and aluminum sulfate;
The 5th step: drainage is manufactured paper with pulp
The 4th mixed slurry that obtain of step is flowed out to from head box evenly distribute on the forming net of circulation and interweave;
The 6th step: subsequent treatment
With the 5th l Water Paper that obtain of step carry out successively press dewatering, applying glue, dry, batch, rewinding and cut processing, finally obtain high-strength corrugated base paper.
After tested, the technical parameter of prepared high-strength corrugated base paper is as follows: flat crushing strength 90N, fracture length 6.4km, ring crush index 9.8Nm/g, side pressure strength 747N/m, compared with prior art, various technical indicators have had raising, and especially ring crush index has nearly improved 30.6%.
Below only be preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the production technology of a high-strength corrugated base paper is characterized in that: comprise the steps:
The first step: once making beating:
Imported waste paper is mixed with domestic waste paper, total waste paper is placed hydrabrusher, add the water size degradation and make high concentration slurry;
Second step: combination purification:
The slurry that the first step obtains is processed with one-level, secondary desander combination purification successively, obtained long stuff; Long stuff is sent into hot decentralized system to be disperseed;
The 3rd step: secondary making beating:
The long stuff that second step is obtained carries out the secondary making beating;
The 4th step: add auxiliary agent:
Add auxiliary agent in the 3rd slurry that obtain of step, the weight ratio that each component addition accounts for absolute dry pulp in the described auxiliary agent is respectively: sizing agent 8-25% and modified lignin resin 25-40%;
The 5th step: drainage is manufactured paper with pulp
The 4th mixed slurry that obtain of step is flowed out to from head box evenly distribute on the forming net of circulation and interweave;
The 6th step: subsequent treatment
With the 5th l Water Paper that obtain of step carry out successively press dewatering, applying glue, dry, batch, rewinding and cut processing, finally obtain high-strength corrugated base paper.
2. the production technology of high-strength corrugated base paper according to claim 1, it is characterized in that: described imported waste paper and described domestic waste paper comprise: the weight ratio that one or more in old and useless newspaper, waste and old books, waste paper board or the waste and old paper in the office, described imported waste paper account for described total waste paper is 30-50%.
3. the production technology of high-strength corrugated base paper according to claim 2, it is characterized in that: the stock quality concentration that obtains in the described first step is 5%.
4. the production technology of high-strength corrugated base paper according to claim 3 is characterized in that: the long stuff mass concentration that obtains in described the 3rd step is 4-6%, beating degree 30-40 ° of SR.
5. the production technology of high-strength corrugated base paper according to claim 4 is characterized in that: the sizing agent in described the 4th step comprises: one or more in modified starch, aluminum sulfate or the aluminium polychloride.
6. the production technology of high-strength corrugated base paper according to claim 5, it is characterized in that: the high-strength corrugated base paper ring crush index of described explained hereafter is 9.1-10.5Nm/g.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099799A (en) * | 2014-07-02 | 2014-10-15 | 福建希源纸业有限公司 | Papermaking method using waste paper residual to produce thin hard paper |
| CN105369669A (en) * | 2015-10-28 | 2016-03-02 | 福建纸匠文化科技股份有限公司 | Method for preparing high-strength corrugated paper |
| CN113079451A (en) * | 2021-03-29 | 2021-07-06 | 国光电器股份有限公司 | Foaming cone for loudspeaker and preparation method and application thereof |
| CN113389090A (en) * | 2021-05-17 | 2021-09-14 | 湖北广发纸业有限公司 | Production process of corrugated base paper |
| CN113668271B (en) * | 2021-09-02 | 2023-08-11 | 浙江金龙再生资源科技股份有限公司 | High-bulk gray board paper and preparation method thereof |
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| CN101565913A (en) * | 2009-05-08 | 2009-10-28 | 东莞玖龙纸业有限公司 | Method for producing corrugated paper with ultralow gram weight and high strength |
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- 2013-06-03 CN CN2013102154353A patent/CN103306156A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101565913A (en) * | 2009-05-08 | 2009-10-28 | 东莞玖龙纸业有限公司 | Method for producing corrugated paper with ultralow gram weight and high strength |
Non-Patent Citations (1)
| Title |
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| 刘全校等: "木素型造纸化学品", 《纸和造纸》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099799A (en) * | 2014-07-02 | 2014-10-15 | 福建希源纸业有限公司 | Papermaking method using waste paper residual to produce thin hard paper |
| CN104099799B (en) * | 2014-07-02 | 2016-05-25 | 福建希源纸业有限公司 | A kind of pulping method that utilizes waster paper slag to produce slim vulcan fibre |
| CN105369669A (en) * | 2015-10-28 | 2016-03-02 | 福建纸匠文化科技股份有限公司 | Method for preparing high-strength corrugated paper |
| CN113079451A (en) * | 2021-03-29 | 2021-07-06 | 国光电器股份有限公司 | Foaming cone for loudspeaker and preparation method and application thereof |
| CN113389090A (en) * | 2021-05-17 | 2021-09-14 | 湖北广发纸业有限公司 | Production process of corrugated base paper |
| CN113668271B (en) * | 2021-09-02 | 2023-08-11 | 浙江金龙再生资源科技股份有限公司 | High-bulk gray board paper and preparation method thereof |
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Application publication date: 20130918 |