CN1970885A - Method for producing paper pulp for use in balance paper by using waste paper - Google Patents
Method for producing paper pulp for use in balance paper by using waste paper Download PDFInfo
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- CN1970885A CN1970885A CNA2006100225369A CN200610022536A CN1970885A CN 1970885 A CN1970885 A CN 1970885A CN A2006100225369 A CNA2006100225369 A CN A2006100225369A CN 200610022536 A CN200610022536 A CN 200610022536A CN 1970885 A CN1970885 A CN 1970885A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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Abstract
The invention relates to a pulping and papermaking method, especially the method that waste paper is used to make pulp for equilibrium paper. The method contains the following procedures that A, the waste paper stock added with water is beaten by pulper and after filtering pulp is made; B, the pulp obtained from A procedure is deinked and bleached; C, the pulp obtained from B procedure is washed or floated; D, the pulp obtained from C procedure is filtered and cleaned; E, the pulp obtained from D procedure is beaten; F, the pulp obtained from E procedure is mixed under normal temperature and pressure, aluminum sulfate dissolved by water is added into the pulp and mixed, iron oxide scattered by water is added into the pulp and mixed evenly, sodium hexametaphosphate is added into the pulp and mixed, finally wet strength agent diluted by water is added into the pulp and mixed, namely the pulp for equilibrium paper is produced.
Description
Technical field
The present invention relates to a kind of pulp and paper making method, particularly a kind of method of utilizing waste paper line balancing paper with paper pulp.
Background technology
Existing balance paper is a kind of special paper of using that is used to produce laminated flooring.Laminated flooring generally is composited by 4 layer materials, is respectively wearing layer, decorative layer, substrate layer and balance layer from top to bottom.Balance paper overlays the lower surface at laminated flooring, is used for balance sheet material stress, and the main effect that is play is to stablize the floor, and the distortion that prevents to warp is smooth to guarantee the floor, can also prevent effectively that in addition moisture from infiltrating from the back side, floor, improves the product humidity resistance.In China, early stage balance paper dependence on import, along with the application of product, papermaking producer begins to manufacture this paper, and through effort for many years, the production occupation rate of homemade balance paper constantly rises.At present, the used fibrous raw material of line balancing paper is market pulp (as wood pulp, bamboo pulp etc.) or producer's self-control paper pulp (as wood pulp, bamboo pulp etc.), scarcity along with fibre resources, the pulp production cost and price rises steadily, the production cost of balance paper is risen thereupon, but the demand in market constantly rise also.Therefore, be badly in need of providing a kind of production cost low, meet customer requirements and do not destroy the method for a kind of line balancing paper of natural fiber resource with paper pulp.
Summary of the invention
It is low that purpose of the present invention promptly provides a kind of production cost, meets customer requirements and do not destroy the production method of the balance paper of natural fiber resource with paper pulp, more particularly, provides a kind of method of utilizing waste paper line balancing paper with paper pulp.
The waste paper line balancing paper that utilizes of the present invention is to carry out according to the following steps with the method for paper pulp:
A, elder generation add water with wastepaper as raw material and carry out size degradation by pulper, and size degradation concentration is 10%--18%, make paper pulp then after diameter is the sieve plate screening of 6-12 millimeter sieve aperture;
B, in the paper pulp that the A step obtains, add caustic soda 1.0%-1.5%, waterglass 3.0%-4.0%, hydrogen peroxide 1.5%-2.0%, deinking agent 0.7%-1.5% with respect to dried wastepaper as raw material consumption, under temperature 60-90 ℃ condition, stirred at least 40 minutes, to paper pulp deinking, the bleaching that obtains in the A step;
C, the paper pulp that obtains in the B step is washed or flotation;
D, the paper pulp that obtains in the C step is sieved and screen purified treatment, screen-aperture 1.8-3.0 millimeter;
E, to the paper pulp that obtains in the D step processing of pulling an oar, obtaining pulp density after the making beating is 2.5%-5.0%, the control beating degree is 38-45 ° of SR, the weight in wet base of fiber is the 2.0-3.0 gram;
F, the paper pulp that obtains in the E step was stirred 20 minutes at normal temperatures and pressures at least, then with respect to oven dry stock amount contained in this paper pulp, in this paper pulp, add with the aluminum sulfate 1.5%-3.0% after the water-soluble, stirred at least 20 minutes, still with respect to oven dry stock amount contained in this paper pulp, adding after with aqueous dispersion iron oxide 5%-7.5% and stir, add weight again and be iron oxide weight 0.5%-2% calgon and stirred at least 20 minutes, with respect to oven dry stock amount contained in this paper pulp, in paper pulp, add the wet strength agent 3.5%-5.5% of dilute with water more than 10 times, stirred at least 20 minutes, and promptly obtained the paper pulp that line balancing paper is used.
In steps A of the present invention, described wastepaper as raw material can adopt disregard message paper, useless kraft wrapping etc., also can use some waste and old books and periodicals.In the present invention, recommend especially above-mentioned wastepaper as raw material by useless brown paper or/and useless books and periodicals and disregard message paper constitute jointly, in this wastepaper as raw material, useless brown paper is or/and useless books and periodicals account for the 25-45% of the gross weight of wastepaper as raw material, and disregard message paper then accounts for the 55-75% of the gross weight of wastepaper as raw material.Also that is to say that can allow the Main Ingredients and Appearance of wastepaper as raw material be disregard message paper, its ratio accounts for the 55-75% of wastepaper as raw material, remainder is useless brown paper and useless books and periodicals, and its ratio accounts for the 25-45% of wastepaper as raw material.Disregard message paper fiber properties is suitable for balance paper short texture, characteristic requirement that absorbability is good, and the balance paper of producing has bigger opacity; And the adding of useless brown paper and useless papers for books and periodicals can improve the intensity of balance paper, in general, uses the better effects if when giving up brown paper, because its fiber is long, becomes the characteristic of paper more loose.According to the class requirement difference of the balance paper of being produced, the structure proportion of raw material allows certain adjustment.Owing to account for cheap, the wide material sources of the disregard message paper of larger proportion, thereby production cost is reduced greatly.Useless books and periodicals account for than the useless brown paper of small scale or/and can guarantee that then product has enough intensity.In this step, can adopt high-concentration pulper that wastepaper as raw material is carried out the intermittent mode size degradation usually, size degradation concentration is at 10%-18%, so better loosen collagen fibre, also can remove the printing ink of fiber surface better.On producing, can control the size degradation time flexibly, make the fiber fine dispersion.The sieve diameter of the sieve plate of pulper bottom is in the 6-12 millimeter, can sift out impurity particle bigger in the paper pulp effectively or be difficult to the waste paper composition of size degradation.This production process adopts tradition, common waste paper pulping method, equipment and technology to get final product.
Among the step B of the present invention, the process of deinking, bleaching that paper pulp is carried out is carried out under normal pressure.In this step, said dried wastepaper as raw material consumption be previous step rapid in dry pulp amount in the prepared paper pulp, wherein the deinking agent of Cai Yonging is commercially available existing product, as auxiliary reagent factory, Mianzhu sky, Sichuan Province production TH-3 type deinking agent etc.The industrial chemicals that is adopted also is commercially available existing product, caustic soda as the production of development zone, Tianjin auspicious sign chemical industry Co., Ltd, the waterglass (sodium metasilicate) that Xintai City, Shenzhen environmental protection Co., Ltd produces, hydrogen peroxide (hydrogen peroxide) that Chengdu state luxuriant chemical industry Co., Ltd produces or the like.For faster production, saving production process, above-mentioned size degradation to wastepaper as raw material, deinking, three kinds of processing procedures of bleaching can be carried out in same equipment simultaneously.
In step C of the present invention, purpose is in order to allow the ink particle in the paper pulp deviate from, though operation through the deinking reaction, printing ink separates with fiber, but still with mixed with fibers together, paper pulp is produced harmful effect, so can adopt the method for washing or suspension further from paper pulp, to separate these particles.The method of above-mentioned washing or suspension all adopts in the paper industry tradition, common pulp washing or suspension processing method, equipment and technology to get final product, and repeats no more herein.
In step D of the present invention, can adopt usually existing commercially available equipment such as screen centrifuge or pressurized screen, taper slagging-off (sand) device to paper pulp screen, purified treatment.For example, can adopt sieve aperture 1.8-2.0 millimeter screen centrifuge or sieve aperture 2.3-3 millimeter pressurized screen that paper pulp is screened, also can adopt taper slagging-off (sand) device that paper pulp is removed the gred.
In step e of the present invention, the purpose of making beating and work are main in order to loosen collagen fibre, reduce fibre cutting, so the making beating mode is for being preferably free beating as far as possible, can adopt commercially available various model disc mills to pull an oar, its model normal root is really decided according to the production demand.The pulping process pulp density be controlled to be 2.5%-5.0% can, the control beating degree is 38-45 ° of SR, the weight in wet base of fiber is a 2.0-3.0 gram.
In step F of the present invention, contained oven dry stock amount is meant in the paper pulp that makes the not weight of aqueous fibre in the described paper pulp.Usually paper pulp was stirred 20～30 minutes at normal temperatures and pressures in this step, in paper pulp, add relevant chemicals according to following order then: aluminum sulfate, iron oxide, wet strength agent etc., can also add defoamer, retention agent, filter aid, dispersant according to producing the paper situation.Add in the paper pulp generally speaking to stir at normal temperatures and pressures behind the aluminum sulfate and get final product in 20～30 minutes, can certainly look concrete condition and stir for more time.The iron oxide aqueous dispersion that adds promptly is meant with the iron oxide after the water-soluble, comprises iron oxide by the consoluet situation of water.Use the kind of iron oxide to determine according to paper color, green etc. as iron oxide black, iron oxide red, cologne earth, iron oxide yellow, iron, these iron oxide products can use separately also and can several mixing use, the adding of iron oxide not only can be painted to paper pulp, be allowed to condition under the high temperature and be difficult for decomposing but also can improve the fiber heat-resisting quantity, more help the later stage to produce qualified balance paper.Other are the Functional Chemicals and the process chemistry product of paper process as wet strength agent, defoamer, retention agent, filter aid, dispersant, common auxiliary agent can adopt different chemical substances, as adopting polyamine epichlorohydrin resin, melamine resin etc.Add wet strength agent (fluid product meter) 3.5%-5.5% with respect to oven dry stock amount contained in this paper pulp in this step, this wet strength agent elder generation dilute with water is more than 10 times, and stirs 20～30 minutes or the longer time.The chemicals that the present invention uses all can adopt the commercially available prod, as the AM-1 type fortifier that retention agent and filter aid can adopt auxiliary reagent factory, Mianzhu sky, Sichuan Province to produce, the TH-A02 PAE resin wet strength agent that wet strength agent can adopt auxiliary reagent factory, Mianzhu sky, Sichuan Province to produce.The calgon that adds in this step can improve water quality, for following process provides condition, the calgon weight that adds is equivalent to 0.5%～2% of above-mentioned iron oxide weight, and stirred at normal temperatures and pressures 20～30 minutes or the longer time, described calgon can adopt the commercially available prod, as the product of river, ShenFang,SiChuan city letter phosphorous chemical industry Co., Ltd production.The aluminum sulfate that adds among the present invention can improve the retention of iron oxide in slurry, increases the positive charge of paper pulp fiber, and increases the retention of other industrial chemicals that added.
Method among the present invention utilizes aboundresources, low-cost waste paper fiber to be substitute, and utilizes the chemical industry auxiliary material, makes the performance of alternative fiber satisfy the requirement of balance paper.Be raw material with waste paper (disregard message paper, useless books and periodicals magazine, useless brown paper etc.) among the present invention, handle through operations such as size degradation, deinking, bleaching, washing, screening, purification, making beating, adding iron oxide (cologne earth, iron oxide black, iron oxide red, iron oxide yellow, iron are green) is filler, and use filter aid, retention agent, increase chemical substance such as dried wet strength agent, to meet papermaking equipment line balancing paper, the consumption of the Functional Chemicals of other paper processes and process chemistry product can be determined consumption according to the production process actual conditions.In this method, use iron oxide can improve the heat-resisting quantity and the opacity of paper, can also in filler, add talcum powder (or calcium carbonate etc.), use talcum powder can improve paper absorbent properties to the liquid sizing material in the post-production process, satisfy the performance requirement of balance paper.Earlier wastepaper as raw material is carried out size degradation and deinking processing according to above-mentioned ratio in the method for the present invention, make old paper stock, paper pulp is become totally, for papermaking is got ready through bleaching, washing, flotation, screening and purification.
Compared with the aforementioned existing similar products, there is fibrous raw material problem in short supply, on the high side at present in the middle of the present invention is directed to balance paper production, utilize aboundresources, low-cost waste paper fiber to be substitute, a conventional process difficult problem that has reduced production cost and solved waste and old paper allows it turn waste into wealth.In addition, utilize the chemical industry auxiliary material to make the performance of alternative fiber satisfy the requirement of balance paper, be convenient to processing and manufacturing.
Content of the present invention further illustrates with the following Examples, but content of the present invention is not limited only to content related among the embodiment.
The specific embodiment
Embodiment 1: the utilization of present embodiment utilizes the method for waste paper line balancing paper with paper pulp, it is characterized in that carrying out according to the following steps:
A, elder generation add water with wastepaper as raw material and carry out size degradation by pulper, and size degradation concentration 10% makes paper pulp after the sieve plate screening of 6 millimeters of sieve apertures;
B, in the paper pulp that the A step obtains, add caustic soda 1.0%, waterglass 3.0%, hydrogen peroxide 1.5%, deinking agent 0.7%, under the condition of 60 ℃ of temperature, stirred 40 minutes, paper pulp deinking, the bleaching that obtains in the A step with respect to dried wastepaper as raw material consumption;
C, the paper pulp that obtains in the B step is carried out flotation;
D, the paper pulp that obtains in the C step is screened purified treatment by pulp screen, hydrocyclone, 1.8 millimeters of screen-apertures, the model of hydrocyclone is selected 606 series for use;
E, to the paper pulp that obtains in the D step with the disc mill processing of pulling an oar, obtaining pulp density after the making beating is 2.5%, the control beating degree is 38 ° of SR, the weight in wet base of fiber is 2.0 grams;
F, the paper pulp that obtains in the E step was stirred 40 minutes at normal temperatures and pressures, then with respect to oven dry stock amount contained in this paper pulp, in this paper pulp, add with the aluminum sulfate after the water-soluble 1.5%, stirred 20 minutes, still with respect to oven dry stock amount contained in this paper pulp, adding after with aqueous dispersion iron oxide 5% and stir, add weight again and be 0.5% calgon of iron oxide weight and be stirred to 20 minutes, with respect to oven dry stock amount contained in this paper pulp, the wet strength agent 3.5% that in paper pulp, adds 10 times of dilute with waters, stirred 20 minutes, and promptly obtained the paper pulp that line balancing paper is used.
Wastepaper as raw material described in the present embodiment is made of jointly useless brown paper and useless books and periodicals and disregard message paper, in wastepaper as raw material, useless brown paper and useless books and periodicals account for wastepaper as raw material gross weight 25%, disregard message paper account for wastepaper as raw material gross weight 75%.
Embodiment 2: the method for utilizing waste paper line balancing paper usefulness paper pulp in the present embodiment is characterized in that carrying out according to the following steps:
A, elder generation add water with wastepaper as raw material and carry out size degradation by pulper, and size degradation concentration 18% makes paper pulp after the sieve plate screening of 12 millimeters of sieve apertures;
B, in the paper pulp that the A step obtains, add caustic soda 1.5%, waterglass 4.0%, hydrogen peroxide 2.0%, deinking agent 1.5%, under the condition of 90 ℃ of temperature, stirred 50 minutes, paper pulp deinking, the bleaching that obtains in the A step with respect to dried wastepaper as raw material consumption;
C, the paper pulp that obtains in the B step is washed;
D, the paper pulp that obtains in the C step is screened purified treatment by pressurized screen, 3.0 millimeters of screen-apertures;
E, to the paper pulp that obtains in the D step with the disc mill processing of pulling an oar, obtaining pulp density after the making beating is 5.0%, the control beating degree is 45 ° of SR, the weight in wet base of fiber is 3.0 grams;
F, the paper pulp that obtains in the E step was stirred 30 minutes at normal temperatures and pressures, then with respect to oven dry stock amount contained in this paper pulp, in this paper pulp, add with the aluminum sulfate after the water-soluble 3.0%, stirred 30 minutes, still with respect to oven dry stock amount contained in this paper pulp, adding after with aqueous dispersion iron oxide 7.5% and stir, add weight again and be 2% calgon of iron oxide weight and stirred 30 minutes, with respect to oven dry stock amount contained in this paper pulp, the wet strength agent 5.5% that in paper pulp, adds 11 times of dilute with waters, stirred 30 minutes, and promptly obtained the paper pulp that line balancing paper is used.
Wastepaper as raw material described in the present embodiment is made of jointly useless brown paper and disregard message paper, in wastepaper as raw material, useless brown paper account for wastepaper as raw material gross weight 45%, disregard message paper account for wastepaper as raw material gross weight 55%.
Embodiment 3: utilize the method for waste paper line balancing paper with paper pulp in the present embodiment, it is characterized in that carrying out according to the following steps:
A, elder generation add water with wastepaper as raw material and carry out size degradation by pulper, and size degradation concentration 13% makes paper pulp after the sieve plate screening of 6 millimeters of sieve apertures;
B, in the paper pulp that the A step obtains, add caustic soda 1.0%, waterglass 4.0%, hydrogen peroxide 1.5%, deinking agent 0.7%, under the condition of 70 ℃ of temperature, stirred 40 minutes, paper pulp deinking, the bleaching that obtains in the A step with respect to dried wastepaper as raw material consumption;
C, the paper pulp that obtains in the B step is washed;
D, the paper pulp that obtains in the C step is screened purified treatment by screen centrifuge, 2.2 millimeters of screen-apertures;
E, to the paper pulp that obtains in the D step with the disc mill processing of pulling an oar, obtaining pulp density after the making beating is 3%, the control beating degree is 40 ° of SR, the weight in wet base of fiber is 2.2 grams;
F, the paper pulp that obtains in the E step was stirred 20 minutes at normal temperatures and pressures, then with respect to oven dry stock amount contained in this paper pulp, in this paper pulp, add with the aluminum sulfate after the water-soluble 1.5%, stirred 30 minutes, still with respect to oven dry stock amount contained in this paper pulp, adding after with aqueous dispersion iron oxide 6% and stir, add weight again and be 1.1% calgon of iron oxide weight and stirred 20 minutes, with respect to oven dry stock amount contained in this paper pulp, the wet strength agent 4% that in paper pulp, adds 12 times of dilute with waters, stirred 20 minutes, and promptly obtained the paper pulp that line balancing paper is used.
Wastepaper as raw material described in the present embodiment is made of jointly useless books and periodicals and disregard message paper, in wastepaper as raw material, useless books and periodicals account for wastepaper as raw material gross weight 30%, disregard message paper account for wastepaper as raw material gross weight 70%.
Embodiment 4: the utilization in the present embodiment utilizes the method for waste paper line balancing paper with paper pulp, it is characterized in that carrying out according to the following steps:
A, elder generation add water with wastepaper as raw material and carry out size degradation by pulper, and size degradation concentration 16% makes paper pulp after the sieve plate screening of 12 millimeters of sieve apertures;
B, in the paper pulp that the A step obtains, add caustic soda 1.5%, waterglass 3.0%, hydrogen peroxide 2.0%, deinking agent 0.7%, under the condition of 80 ℃ of temperature, stirred 50 minutes, paper pulp deinking, the bleaching that obtains in the A step with respect to dried wastepaper as raw material consumption;
C, the paper pulp that obtains in the B step is carried out flotation;
D, the paper pulp that obtains in the C step is screened purified treatment by pulp screen, hydrocyclone, 2.6 millimeters of screen-apertures, the model of hydrocyclone is selected 620 series for use;
E, to the paper pulp that obtains in the D step with the disc mill processing of pulling an oar, obtaining pulp density after the making beating is 4.0%, the control beating degree is 42 ° of SR, the weight in wet base of fiber is 2.5 grams;
F, the paper pulp that obtains in the E step was stirred 25 minutes at normal temperatures and pressures, then with respect to oven dry stock amount contained in this paper pulp, in this paper pulp, add with the aluminum sulfate after the water-soluble 2.5%, stirred 20 minutes, still with respect to oven dry stock amount contained in this paper pulp, adding after with aqueous dispersion iron oxide 6.5% and stir, add weight again and be 1.8% calgon of iron oxide weight and stirred 20 minutes, with respect to oven dry stock amount contained in this paper pulp, the wet strength agent 4.5% that in paper pulp, adds 12 times of dilute with waters, stirred 20 minutes, and promptly obtained the paper pulp that line balancing paper is used.
Wastepaper as raw material described in the present embodiment is made of jointly useless brown paper and useless books and periodicals and disregard message paper, in wastepaper as raw material, useless brown paper and useless books and periodicals account for wastepaper as raw material gross weight 40%, disregard message paper account for wastepaper as raw material gross weight 60%.
Claims (2)
1, a kind of method of utilizing waste paper line balancing paper with paper pulp is characterized in that carrying out according to the following steps:
A, elder generation add water with wastepaper as raw material and carry out size degradation by pulper, and size degradation concentration is 10%-18%, make paper pulp then after diameter is the sieve plate screening of 6-12 millimeter sieve aperture;
B, in the paper pulp that the A step obtains, add caustic soda 1.0%-1.5%, waterglass 3.0%-4.0%, hydrogen peroxide 1.5%-2.0%, deinking agent 0.7%-1.5% with respect to dried wastepaper as raw material consumption, under temperature 60-90 ℃ condition, stirred at least 40 minutes, to paper pulp deinking, the bleaching that obtains in the A step;
C, the paper pulp that obtains in the B step is washed or flotation;
D, the paper pulp that obtains in the C step is sieved and screen purified treatment, screen-aperture 1.8-3.0 millimeter;
E, to the paper pulp that obtains in the D step processing of pulling an oar, obtaining pulp density after the making beating is 2.5%-5.0%, the control beating degree is 38-45 ° of SR, the weight in wet base of fiber is the 2.0-3.0 gram;
F, the paper pulp that obtains in the E step was stirred 20 minutes at normal temperatures and pressures at least, then with respect to oven dry stock amount contained in this paper pulp, in this paper pulp, add with the aluminum sulfate 1.5%-3.0% after the water-soluble, stirred at least 20 minutes, still with respect to oven dry stock amount contained in this paper pulp, adding after with aqueous dispersion iron oxide 5%-7.5% and stir, add weight again and be iron oxide weight 0.5%-2% calgon and stirred at least 20 minutes, with respect to oven dry stock amount contained in this paper pulp, in paper pulp, add the wet strength agent 3.5%-5.5% of dilute with water more than 10 times, stirred at least 20 minutes, and promptly obtained the paper pulp that line balancing paper is used.
2, the method for utilizing waste paper line balancing paper with paper pulp as claimed in claim 1, it is characterized in that described wastepaper as raw material by useless brown paper or/and useless books and periodicals and disregard message paper constitute jointly, in wastepaper as raw material, useless brown paper is or/and useless books and periodicals account for the 25-45% of the gross weight of wastepaper as raw material, and disregard message paper accounts for the 55-75% of the gross weight of wastepaper as raw material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100225369A CN1970885A (en) | 2006-12-19 | 2006-12-19 | Method for producing paper pulp for use in balance paper by using waste paper |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100225369A CN1970885A (en) | 2006-12-19 | 2006-12-19 | Method for producing paper pulp for use in balance paper by using waste paper |
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| CN1970885A true CN1970885A (en) | 2007-05-30 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294360B (en) * | 2008-04-23 | 2011-01-19 | 山东太阳纸业股份有限公司 | Dry, wet strength paper dissociation agent and degradation technique thereof |
| CN102704301A (en) * | 2012-06-19 | 2012-10-03 | 连城县东方经济开发有限公司 | Process of coated kraft waste paper recycled intermediary paper |
| CN103255664A (en) * | 2013-04-20 | 2013-08-21 | 浙江荣晟环保纸业股份有限公司 | Process for extracting high-quality fiber from reclaimed waste paper |
| CN103437228A (en) * | 2013-08-23 | 2013-12-11 | 华南理工大学 | Method capable of reducing waste paper fiber damage in high concentration pulping process |
| WO2014000420A1 (en) * | 2012-06-25 | 2014-01-03 | 北京英力生科新材料技术有限公司 | Chemical pulping method |
| CN107022916A (en) * | 2017-05-25 | 2017-08-08 | 江苏美灯纸业有限公司 | A kind of waste paper currency system paste-making method |
| CN107090731A (en) * | 2017-05-25 | 2017-08-25 | 江苏美灯纸业有限公司 | A kind of waste beer mark is beaten preprocess method |
| CN107869086A (en) * | 2017-10-24 | 2018-04-03 | 江山市华盛纸业制造有限公司 | A kind of new crimped paper |
| CN107881847A (en) * | 2017-12-29 | 2018-04-06 | 安徽宏实光机电高科有限公司 | A kind of method using wet strong waste paper manufacture regenerated paper pulp wrapping paper |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294360B (en) * | 2008-04-23 | 2011-01-19 | 山东太阳纸业股份有限公司 | Dry, wet strength paper dissociation agent and degradation technique thereof |
| CN102704301A (en) * | 2012-06-19 | 2012-10-03 | 连城县东方经济开发有限公司 | Process of coated kraft waste paper recycled intermediary paper |
| WO2014000420A1 (en) * | 2012-06-25 | 2014-01-03 | 北京英力生科新材料技术有限公司 | Chemical pulping method |
| CN103255664A (en) * | 2013-04-20 | 2013-08-21 | 浙江荣晟环保纸业股份有限公司 | Process for extracting high-quality fiber from reclaimed waste paper |
| CN103255664B (en) * | 2013-04-20 | 2016-05-04 | 浙江荣晟环保纸业股份有限公司 | A kind of technique of extracting high-quality fiber from reclaimed waste paper |
| CN103437228A (en) * | 2013-08-23 | 2013-12-11 | 华南理工大学 | Method capable of reducing waste paper fiber damage in high concentration pulping process |
| CN103437228B (en) * | 2013-08-23 | 2015-10-28 | 华南理工大学 | A kind of method that can reduce waste paper fibre damage in the dense pulping process of height |
| CN107022916A (en) * | 2017-05-25 | 2017-08-08 | 江苏美灯纸业有限公司 | A kind of waste paper currency system paste-making method |
| CN107090731A (en) * | 2017-05-25 | 2017-08-25 | 江苏美灯纸业有限公司 | A kind of waste beer mark is beaten preprocess method |
| CN107869086A (en) * | 2017-10-24 | 2018-04-03 | 江山市华盛纸业制造有限公司 | A kind of new crimped paper |
| CN107881847A (en) * | 2017-12-29 | 2018-04-06 | 安徽宏实光机电高科有限公司 | A kind of method using wet strong waste paper manufacture regenerated paper pulp wrapping paper |
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