CN102587191B - A kind of method utilizing tangleweed papermaking - Google Patents
A kind of method utilizing tangleweed papermaking Download PDFInfo
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- CN102587191B CN102587191B CN201210051157.8A CN201210051157A CN102587191B CN 102587191 B CN102587191 B CN 102587191B CN 201210051157 A CN201210051157 A CN 201210051157A CN 102587191 B CN102587191 B CN 102587191B
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Abstract
The present invention relates to the method for pulping and paper-making, specifically a kind of method utilizing tangleweed papermaking.Paper or paper products are mixed to form with tangleweed and paper making pulp.Utilize method of the present invention, tangleweed can partly or entirely replace traditional paper making raw material, and then obtain Novel paper product, and tangleweed abundance, cheap, tangleweed is used for papermaking, required process is simple, therefore can effectively reduce papermaking cost, and effectively can solve the problem of tangleweed difficult treatment, be beneficial to environmental protection.
Description
Technical field
The present invention relates to the method for pulping and paper-making, specifically a kind of method utilizing tangleweed papermaking.
Background technology
The paper and paperboard level of consumption is the important symbol of measurement modernization of the country level and civilization construction.Paper industry is one and builds closely bound up important foundation raw material industry with the national economic development and social civilization, and the effect played in modern economy causes more and more and catches people's attention, and is known as the industry of " never exhaustion " in the world.The development level of paper industry directly reflects the development level of a national national economy and civilization construction, in developed countries such as the U.S., Canada, Japan, Finland, Sweden, paper maker had become one of its pillars of the national economy manufacturing industry already, and the growth rate of cardboard consumption figure is basic synchronous with their its GDP growth rate.Since calendar year 2001, the development of domestic paper-making industry is rapidly, current China paper and production amount and consumption figure all at the forefront in the world, Paper Industry Development speed is very fast, has become the new growth point of the national economic development.Within 2009, paper and paperboard manufacturing enterprise of China about has 3700, output 8,640 ten thousand tons, consumption figure 8,569 ten thousand tons; The output of China's paper and paperboard in 2010 reaches 92,700 ten thousand tons, occupies 24% of Gross World Product.According to the viewpoint of some Foreign Medias, just surmount the U.S. becomes papermaking state maximum in the world to China in 2009; The demand of China's paper product will surmount US and European in 2013 according to estimates, and increase by more than 1 times in 2021.
But China's paper making raw material critical shortage, especially quality raw materials breach increases year by year.Because there is lack of raw materials, the paper industry of China is faced with huge challenge.Wood pulp is the first-selection of paper making raw material, but has been global common problem to the demand of timber much larger than accumulation.The wood grows cycle is long, and the benign cycle forming forestry-pulp-paper integration needs a very long time, takies appreciable land resource.China has a large population and a few land, and is the country of poor forest resources.According to the 6th national forest assessment result, although the effort of planting trees through nationwide fruitful for many years, the area of woods of China has reached 1.75 hundred million hectares, and coverage rate is increased to 18.21%, forest accumulation amount 124.56 hundred million m
3, but area of woods only 0.132 hectare per capita, less than 1/4 of world average level; Forest accumulation amount 9.421m per capita
3, less than 1/6 of world average level.In this case, China has basically formed at present based on lumber fibre, regenerated fiber, and non-wood-fiber is the raw material mix of important component part.
The output of China's paper product in 2009 and consumption figure remain basically stable according to statistics, but the same year, but import was equivalent to the wood pulp of world's general import amount 30% and recovery paper over half, paper-making industry is used for import and once starches and reclaim more than 35% of cost Yi Da China paper industry totle drilling cost of slurry.It is predicted, estimate in the regular period from now on, paper making raw material shortage is still one of problem of restriction paper-making industry development, and the domestic demand to paper making raw material will continue to increase, the coming years China's paper and the growth of paperboard production and the inharmonious situation of raw material supplying will aggravate further.The utilization of secondary stock is the effective way of fibrous raw material recycle, but imported waste paper quality differs, and price is nose-up tendency.On the other hand, face increasing public pressure, China's paper industry is badly in need of making an effort on reduction is polluted, and all easily pollutes in waste paper application and garbage processing procedure, and regenerated fiber per ton all will produce the not recyclable rubbish of some.In the face of the more and more serious challenge of electronic medium, raw material (especially paper fibre), energy prices and environmental protection cost skyrocket, and the drop of price one tunnel of paper product, cause the growth of China's paper industry weak.How to crack this crisis to ensureing that the sound development of Chinese national economy has great significance.
Reduce costs and ensure that raw material supply is the most important thing ensureing China's paper industry normal development.China is a non-wood pulping papermaking big country, has abundant non-wood type resource.Traditional non-wood type resource comprises wheat straw and cotton stalk etc., and these agricultural wastes are not only inexpensive, and quantity is large.China is the country world today using grass as raw material pulping and paper-making maximum.In the paper and paperboard that China produces, 60% ~ 70% is had to be adopt non-wood-fiber as raw material.Agricultural crop straw is used for papermaking as agricultural wastes, has extremely successful experience in China.China reaches more than 2,000 ten thousand tons for the agricultural crop straw of papermaking every year according to statistics.Marine alga that China obtained by sea-farming is every year added up more than 1,000 ten thousand tons according to FAO.If these algae can be used in the problem that papermaking significantly can alleviate paper making raw material shortage.On the other hand along with the aggravation of marine environment eutrophication, green damp event takes place frequently all over the world.According to investigations, some kinds outburst of the Enteromorpha of these green damp events normally in tangleweed and Ulva causes.The extensive frond formed after the outburst of these tangleweeds is assembled, and forms large stretch of marine alga buoyant raft on sea.To except salvaging, also more effective treating method is not had to green tide at present.Along with green tide outburst is more and more frequent, the example of green damp burst period in an organized way large area salvaging all over the world, landfill tangleweed is of common occurrence.During Huanghai Sea Enteromorpha events in 2008, only the area coverage of In The Area of Qingdao Enteromorpha just reaches 30000 square kilometres, and the Enteromorpha of salvaged just reaches more than 1,000,000 tons.How to process these Enteromorphas and become a nerve-wracking difficult problem.Whether these tangleweeds salvaged can develop, turn waste into wealth? the non-wood type resource that marine alga is a considerable number of beyond doubt, and still there is no effective record marine alga being used for papermaking so far in China.Therefore, marine alga and derivative thereof being used for the field that papermaking is worth exploring beyond doubt, will achieving many things at one stroke as succeeded, significant.
Summary of the invention
The object of the invention is to provide a kind of method utilizing tangleweed papermaking.
For achieving the above object, the technical solution used in the present invention is:
Utilize a method for tangleweed papermaking, be mixed to form paper or paper products with tangleweed and paper making pulp.Described tangleweed and paper making pulp by mass percentage, slurry 0-90%, tangleweed 10-100%.Described tangleweed is Enteromorpha and/or sea lettuce, and wherein the consumption of Enteromorpha and sea lettuce is arbitrary proportion.
Described tangleweed for being mixed to form paper or paper products with paper making pulp after acid and/or oxygenation pretreatment.Described acid is hydrochloric acid or sulfuric acid; Alkali is NaOH.
Described tangleweed is mixed to form paper or paper products with paper making pulp after the low-kappa number of concentration 1-5wt%, and wherein tangleweed counts 1: 20-30 with the ratio by mass number of acid;
Or described tangleweed is mixed to form paper or paper products with paper making pulp after the oxygenation pretreatment of concentration 1-8wt%, wherein tangleweed with
alkaliratio by mass number count 1: 20-30;
Or described tangleweed is after concentration 1-5wt% acid treatment, then be mixed to form paper or paper products with after concentration 1-8wt% oxygenation pretreatment with paper making pulp, wherein tangleweed with
alkaliratio by mass number count 1: 20-30, tangleweed with acid ratio by mass number count 1: 20-30;
Or described tangleweed is after concentration 1-8wt% alkali treatment, then be mixed to form paper or paper products with after concentration 1-5wt% low-kappa number with paper making pulp, wherein tangleweed with
alkaliratio by mass number count 1: 20-30, tangleweed with acid ratio by mass number count 1: 20-30.
Action principle of the present invention is: different from higher plant, and algae structure is simple, and mechanical strength is low, is easy to process; Same containing cellulose but not containing lignin in algae; Also a large amount of polysaccharose substance and some active materials are contained in addition in algae.Therefore, using tangleweed as paper making raw material or additive in wood pulp fibre, do not need to remove lignin, step is simple, pollutes few.Include fiber fines component and polysaccharose substance in tangleweed, be filled between fiber in paper industry forming process, tightness air permeability changes, and then contact angle and oil preventing performance change.Become the bacteriostasis property of paper relevant with the active material contained in tangleweed.
The invention has the beneficial effects as follows:
1. utilize method of the present invention, tangleweed can partly or entirely replace traditional paper making raw material, and then obtain Novel paper product, and tangleweed abundance, cheap, tangleweed is used for papermaking, required process is simple, therefore can effectively reduce papermaking cost, and effectively can solve the problem of tangleweed difficult treatment, be beneficial to environmental protection.
2. utilize the paper of method manufacture of the present invention to have grease proofing, waterproof and antimicrobial effect, and marine alga have the property such as environmental protection, edible, can be used as greaseproof paper, food wrapper and other speciality paper.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
In following examples, all raw materials are commercially available prod, do not have particularity, and in the present invention, paper making pulp and paper technology are the generality that prior art is field of papermaking, do not have particularity, can not affect implementation of the present invention.Following examples relate to the grease proofing time and are the grease proofing time defined in TAPPI-454, and detection method is with the record in this standard; Relate to biocidal property and be the biocidal property defined in ASTME2149-2001, detection method is with the record in this standard; The water proofing property related to is by contact angle determination, and without particular meaning, the device used is this area usual means, without particular/special requirement.
Mass percent is first mix after 0-90% slurry and 10-100% tangleweed respective pretreatment by the method for papermaking of the present invention, then for the production of paper product after defibrination.
Concrete operation step is as follows:
(1) clean, remove the impurity in tangleweed;
(2) roughly grind: the tangleweed after cleaning is drained, with fiberizer, its length is milled to as 2-4cm;
(3) preliminary treatment: count by weight, processes 1.5-2.5 hour by 1 part of wet tangleweed 20-30 part 1-8wt% sodium hydroxide solution after corase grind at temperature 80-100 DEG C, then flushing, pressure filtration;
(4) bleach: count by weight, by 1 part of tangleweed 20-30 part 4-8wt% hydrogenperoxide steam generator after step (3) process 50
-bleach 1-10 hour in 80 DEG C of water-baths, after slurry reaches whiteness requirement, cleaning, pressure filtration, collect residue;
(5) refine: it is 0.2-0.6cm that the tangleweed material fiberizer after bleached for step (4) is milled to length, obtains tangleweed slurry;
(6) mix and discongest: being that 0-90% slurry and 10-100% tangleweed mix and discongest evenly by mass percent;
(7) sheet forming: mixture step (6) obtained is by quantitative requirement copy paper;
(8) dry: by dry under 60-80 DEG C of condition for the page after shaping.
Embodiment 1
The method concrete steps of papermaking are as follows:
(1) clean, remove impurity in Enteromorpha;
(2) roughly grind: the Enteromorpha after cleaning is drained, with fiberizer, its length is milled to as 2-4cm;
(3) preliminary treatment: count by weight, processes 5 hours with 20 parts of 4wt% sodium hydroxide solutions by 1 part of wet Enteromorpha after corase grind at temperature 85 DEG C, then flushing, pressure filtration;
(4) bleach: count by weight, 1 part of Enteromorpha after step (3) process is bleached 4 hours with 20 parts of 8wt% hydrogenperoxide steam generators in 70 DEG C of water-baths, then cleaning, pressure filtration, collect residue;
(5) refine: it is 0.2-0.6cm that the Enteromorpha material fiberizer after bleached for step (4) is milled to length, obtains Enteromorpha slurry;
(6) mix and discongest: being that 70% slurry and 30% Enteromorpha mix and discongest evenly by mass percent;
(7) sheet forming: mixture step (6) obtained is by 60g/m
2quantitative copy paper;
(8) dry: by dry at 60 DEG C for the page after shaping.
Through the paper that said method obtains, the grease proofing time is 170s, improves 170s compared with the paper not adding marine alga; Contact angle is 48.3 °, improves 19.9 ° compared with the paper not adding marine alga; To the bacteriostasis rate of four kinds of common bacteria in paper compared with the paper not adding marine alga, the degree that this enforcement gained paper bacteriostasis rate improves is respectively: Escherichia coli, 9.1%; Staphylococcus aureus, 10.2%; Salmonella: 9.8%; Hay bacillus, 2.2%.
Embodiment 2:
The method concrete steps of papermaking are as follows:
(1) clean, remove impurity in sea lettuce;
(2) roughly grind: the sea lettuce after cleaning is drained, with fiberizer, its length is milled to as 2-4cm;
(3) preliminary treatment: count by weight, processes 2.5 hours with 30 parts of 6wt% sodium hydroxide solutions by 1 part of wet sea lettuce after corase grind at temperature 90 DEG C, then flushing, pressure filtration;
(4) bleach: count by weight, 1 part of sea lettuce after step (3) process is bleached 6 hours with 30 parts of 6wt% hydrogenperoxide steam generators in 65 DEG C of water-baths, then cleaning, pressure filtration, collect residue;
(5) refine: it is 0.2-0.6cm that the sea lettuce material fiberizer after bleached for step (4) is milled to length, obtains sea lettuce slurry;
(6) mix and discongest: being that 50% slurry and 50% sea lettuce mix and discongest evenly by mass percent;
(7) sheet forming: mixture step (6) obtained is according to 60g/m
2quantitative copy paper;
(8) dry: by dry at 80 DEG C for the page after shaping.
Through the paper that said method obtains, the grease proofing time is 1800s+, improves more than 1800s compared with the paper not adding marine alga; Contact angle is 52.7 °, improves 24.3 ° compared with the paper not adding marine alga; To the bacteriostasis rate of four kinds of common bacteria in paper compared with the paper not adding marine alga, the degree that this enforcement gained paper bacteriostasis rate improves is respectively: Escherichia coli, 11.8%; Staphylococcus aureus, 15.2%; Salmonella: 16.5%; Hay bacillus, 3.7%.
Embodiment 3:
The method concrete steps of papermaking are as follows:
(1) Enteromorpha and sea lettuce are cleaned respectively, remove impurity;
(2) roughly grind: the Enteromorpha after cleaning and sea lettuce are drained, mixes together according to the ratio of 80% Enteromorpha 20% sea lettuce, with fiberizer, the length of mixture is milled to as 2-4cm;
(3) preliminary treatment: count by weight, processes 1.5-2.5 hour by 1 part of Enteromorpha after corase grind and sea lettuce mixture 25 parts of 6wt% sodium hydroxide solutions at temperature 80-90 DEG C, then flushing, pressure filtration;
(4) bleach: count by weight, 1 part of Enteromorpha after step (3) process and sea lettuce mixture 25 parts of 5wt% hydrogenperoxide steam generators are bleached 5 hours in 55 DEG C of water-baths, then cleaning, pressure filtration, collect solids respectively;
(5) refine: it is 0.2-0.6cm that the Enteromorpha after bleached for step (4) and sea lettuce mixture fiberizer are milled to length, obtains Enteromorpha and sea lettuce mixed slurry;
(6) discongest: Enteromorpha and sea lettuce mixed slurry are discongested evenly;
(7) sheet forming: mixture step (6) obtained is according to 60g/m
2quantitative copy paper;
(8) dry: by dry at 70 DEG C for the page after shaping.
Through the paper that said method obtains, the grease proofing time is 1800s+, improves more than 1800s compared with the paper not adding marine alga; Contact angle is 69.6 °, improves 41.2 ° compared with the paper not adding marine alga; To the bacteriostasis rate of four kinds of common bacteria in paper compared with the paper not adding marine alga, the degree that this enforcement gained paper bacteriostasis rate improves is respectively: Escherichia coli, 48.5%; Staphylococcus aureus, 56.6%; Salmonella: 53.8%; Hay bacillus, 9.4%.
Embodiment 3:
The method concrete steps of papermaking are as follows:
(1) Enteromorpha and sea lettuce are cleaned respectively, remove impurity;
(2) roughly grind: the Enteromorpha after cleaning and sea lettuce are drained, mixes together according to the ratio of 80% Enteromorpha 20% sea lettuce, with fiberizer, the length of mixture is milled to as 2-4cm;
(3) preliminary treatment: count by weight, processes 2 hours by 1 part of Enteromorpha after corase grind and sea lettuce mixture 25 parts of 6wt% sodium hydroxide solutions at temperature 85 DEG C, then flushing, pressure filtration;
(4) bleach: count by weight, 1 part of Enteromorpha after step (3) process and sea lettuce mixture 25 parts of 5wt% hydrogenperoxide steam generators are bleached 5 hours in 55 DEG C of water-baths, then cleaning, pressure filtration, collect solids respectively;
(5) refine: it is 0.2-0.6cm that the Enteromorpha after bleached for step (4) and sea lettuce mixture fiberizer are milled to length, obtains Enteromorpha and sea lettuce mixed slurry;
(6) discongest: Enteromorpha and sea lettuce mixed slurry are discongested evenly;
(7) sheet forming: mixture step (6) obtained is according to 60g/m
2quantitative copy paper;
(8) dry: by dry at 70 DEG C for the page after shaping.
Through the paper that said method obtains, the grease proofing time is 1800s+, improves more than 1800s compared with the paper not adding marine alga; Contact angle is 69.6 °, improves 41.2 ° compared with the paper not adding marine alga; To the bacteriostasis rate of four kinds of common bacteria in paper compared with the paper not adding marine alga, the degree that this enforcement gained paper bacteriostasis rate improves is respectively: Escherichia coli, 48.5%; Staphylococcus aureus, 56.6%; Salmonella: 53.8%; Hay bacillus, 9.4%.
Embodiment 4
The method concrete steps of papermaking are as follows:
(1) clean, remove impurity in Enteromorpha;
(2) roughly grind: drained by the Enteromorpha after cleaning, its length being milled to fiberizer is 2
-4cm;
(3) alkali treatment: count by weight, processes 5 hours with 20 parts of 2wt% sodium hydroxide solutions by 1 part of wet Enteromorpha after corase grind at temperature 85 DEG C, then flushing, pressure filtration;
(4) acid treatment: count by weight, processes 5 hours with 20 parts of 2wt% hydrochloric acid solutions by 1 part of wet Enteromorpha after corase grind under temperature 70 C, then flushing, pressure filtration;
(5) bleach: count by weight, 1 part of Enteromorpha after step (4) process is bleached 4 hours with 20 parts of 8wt% hydrogenperoxide steam generators in 70 DEG C of water-baths, then cleaning, pressure filtration, collect residue;
(6) refine: it is 0.20.6cm that the Enteromorpha material fiberizer after bleached for step (5) is milled to length, obtains Enteromorpha slurry;
(7) mix and discongest: being that 70% slurry and 30% Enteromorpha mix and discongest evenly by mass percent;
(8) sheet forming: mixture step (7) obtained is by 60g/m
2quantitative copy paper;
(9) dry: by dry at 60 DEG C for the page after shaping.
Embodiment 5:
The method concrete steps of papermaking are as follows:
(1) clean, remove impurity in sea lettuce;
(2) roughly grind: the sea lettuce after cleaning is drained, with fiberizer, its length is milled to as 2-4cm;
(3) acid treatment: count by weight, processes 2.5 hours with 30 parts of 4wt% hydrochloric acid solutions by 1 part of wet sea lettuce after corase grind at temperature 80 DEG C, then flushing, pressure filtration;
(4) alkali treatment: count by weight, processes 2.5 hours with 20 parts of 3wt% sodium hydroxide solutions by 1 part of wet sea lettuce after corase grind at temperature 90 DEG C, then flushing, pressure filtration;
(5) bleach: count by weight, 1 part of sea lettuce after step (4) process is bleached 6 hours with 30 parts of 6wt% hydrogenperoxide steam generators in 65 DEG C of water-baths, then cleaning, pressure filtration, collect residue;
(6) refine: it is 0.2-0.6cm that the sea lettuce material fiberizer after bleached for step (5) is milled to length, obtains sea lettuce slurry;
(7) mix and discongest: being that 50% slurry and 50% sea lettuce mix and discongest evenly by mass percent;
(8) sheet forming: mixture step (7) obtained is according to 60g/m
2quantitative copy paper;
(9) dry: by dry at 80 DEG C for the page after shaping.
Embodiment 6:
The method concrete steps of papermaking are as follows:
(1) Enteromorpha and sea lettuce are cleaned respectively, remove impurity;
(2) roughly grind: the Enteromorpha after cleaning and sea lettuce are drained, mixes together according to the ratio of 20% Enteromorpha 80% sea lettuce, with fiberizer, the length of mixture is milled to as 2-4cm;
(3) alkali treatment: count by weight, processes 2.5 hours by 1 part of Enteromorpha after corase grind and sea lettuce mixture 25 parts of 5wt% sodium hydroxide solutions at temperature 90 DEG C, then flushing, pressure filtration;
(3) acid treatment: count by weight, processes 2.5 hours by 1 part of Enteromorpha after corase grind and sea lettuce mixture 25 parts of 4wt% hydrochloric acid solutions at temperature 85 DEG C, then flushing, pressure filtration;
(4) bleach: count by weight, 1 part of Enteromorpha after step (3) process and sea lettuce mixture 25 parts of 5wt% hydrogenperoxide steam generators are bleached 5 hours in 55 DEG C of water-baths, then cleaning, pressure filtration, collect solids respectively;
(5) refine: it is 0.2-0.6cm that the Enteromorpha after bleached for step (4) and sea lettuce mixture fiberizer are milled to length, obtains Enteromorpha and sea lettuce mixed slurry;
(6) discongest: Enteromorpha and sea lettuce mixed slurry are discongested evenly;
(7) sheet forming: mixture step (6) obtained is according to 60g/m
2quantitative copy paper;
(8) dry: by dry at 70 DEG C for the page after shaping.
Claims (3)
1. utilize a method for tangleweed papermaking, it is characterized in that: be mixed to form paper or paper products with tangleweed and paper making pulp;
Described tangleweed after concentration 15wt% acid treatment, then is mixed to form paper or paper products with after concentration 1-8wt% oxygenation pretreatment with paper making pulp;
Or described tangleweed is after concentration 1-8wt% alkali treatment, then be mixed to form paper or paper products with after concentration 1-5wt% low-kappa number with paper making pulp;
It is 0.2-0.6cm that tangleweed fiberizer after described process is milled to length;
Described tangleweed is Enteromorpha and/or sea lettuce.
2., by the method utilizing tangleweed papermaking according to claim 1, it is characterized in that: described tangleweed and paper making pulp by mass percentage, slurry 0-90%, tangleweed 10-100%.
3. by the method utilizing tangleweed papermaking according to claim 1, it is characterized in that: described acid is hydrochloric acid or sulfuric acid; Alkali is NaOH.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0565920A1 (en) * | 1992-04-16 | 1993-10-20 | CARTIERA FAVINI S.p.A. | Procedure for manufacturing paper from seaweed and paper thus obtained |
| CN101289821A (en) * | 2008-03-21 | 2008-10-22 | 刘慧敏 | Paper pulp and paper sheets made form brown algae and making method thereof |
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2012
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0565920A1 (en) * | 1992-04-16 | 1993-10-20 | CARTIERA FAVINI S.p.A. | Procedure for manufacturing paper from seaweed and paper thus obtained |
| CN101289821A (en) * | 2008-03-21 | 2008-10-22 | 刘慧敏 | Paper pulp and paper sheets made form brown algae and making method thereof |
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