CN1099446A - Newspaper paper of bagasse produced by industrial process - Google Patents
Newspaper paper of bagasse produced by industrial process Download PDFInfo
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- CN1099446A CN1099446A CN 94103093 CN94103093A CN1099446A CN 1099446 A CN1099446 A CN 1099446A CN 94103093 CN94103093 CN 94103093 CN 94103093 A CN94103093 A CN 94103093A CN 1099446 A CN1099446 A CN 1099446A
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- bagasse
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Abstract
The method for making newsprint with bagasse after two-stage sugar content removal, wet stocking, pulping and bleaching includes such steps as proportional addition of ground wooden pulp and chemical pulp, fluffing, beating, mixing, sieving, clarification and making paper on paper machine, and features high quality of paper conforming to Cs level in GB1910-89 standard, low cost and saving wood by over 52%.
Description
The present invention is to be the main raw material newspaper paper of bagasse produced by industrial process with the bagasse.
85% paper making raw material is to use various timber on the known world, and timber resources is absolutely used in the newsprint production of China, and paper making pulp or newsprint solve by import.Because global forest resource decrease, therefore, the serious restriction that paper making raw material is lacked by timber resources, and the reduction of national foreign exchange all greatly influence the production and the development of China's newsprint.So, lack the country of the forest reserves in the world, the research and utilization bagasse technology of paper of framing news competitively, but because of sugarcane fiber is short, heteroproteose cell is many, the easy embrittlement of the paper of manufacturing paper with pulp, the requirement that does not reach the newsprint of manufacturing paper with pulp is not fully used.At present, external bigger bagasse Newsprint Mill has: states such as Cuba, Peru, Mexico, India, Argentina, Indonesia, and its production technology mainly is that bagasse removes and adds about 8% NaOH behind the marrow and carry out continuously cooking and defibrator process, the process route complexity, chemicals consumption is big, the cost height; Or after adopting advanced rietz process rietz, by bagasse mechanical pulp (TMP), chemi-mechanical pulp (CMP), by tree chemical pulp production line, the newsprint of manufacturing paper with pulp after the mixing, build and be equivalent to three pulping production lines producing 20000 tons of 50,000 tons, two annual outputs per year, investment is big, economic benefit is low, and the bagasse news of producing (as: whiteness is low, fracture length is low, dust is many etc.) does not reach the requirement of China News paper quality.China's production newsprint is employing 80% ground wood pulp, 20% chemical wood pulp is manufactured paper with pulp, and is that main raw material suitability for industrialized production newsprint is still blank at home with the bagasse.
Purpose of the present invention, being to provide a kind of is the main raw material newspaper paper of bagasse produced by industrial process with the bagasse, aspect the wet end furnish of newsprint of manufacturing paper with pulp, operating procedure condition, can overcome the difficult problem that sugarcane fiber is short, heteroproteose cell is many, manufacture paper with pulp to such an extent that meet the bagasse newsprint of China's state quality standard.
The objective of the invention is to finish like this: after removing marrow with the bagasse in sugar refinery through the two-stage half wet process, the wet method bulk cargo stores up, the bleaching bagasse pulp of soda pulping and conventional tri-stage bleaching technology is a main raw material, mix ground wood pulp and chemical wood pulp proportioning, after three kinds of slurries are discongested respectively, pull an oar, are cooperated, through screening, purification, the bagasse newsprint of in 1760 fourdrinier wire multi-cylinder paper machine systems, manufacturing paper with pulp and being up to state standards.
The technological process of newspaper paper of bagasse produced by industrial process as shown in drawings, its production technology is as follows:
One, remove marrow with the bagasse in sugar refinery through the two-stage half wet process after, the wet method bulk cargo stores up, the bleaching bagasse pulp 50%～60% of soda pulping and conventional tri-stage bleaching technology is a main raw material, mix ground wood pulp 30～40% and chemical wood pulp 8～10%(all by weight) proportioning, after three kinds of slurries are discongested respectively, pull an oar, are cooperated, through screening, purification, copying widely for 1760mm, design speed are on 250 meters/minute fourdrinier wire multi-cylinder paper machines, being 170～180 meters/minute with the machine hand as speed, to manufacture paper with pulp quantitatively be 49 ± 2g/m
2The bagasse newsprint.
Two, main beating process index parameter such as the following table of production specifications of the present invention:
Three, accompanying drawing is the newspaper paper of bagasse produced by industrial process process flow diagram, and embodiments of the invention are as follows:
After embodiment 1. removes marrow with the bagasse in sugar refinery through the two-stage half wet process, the wet method bulk cargo stores up, the bleaching bagasse pulp 50% of soda pulping and conventional tri-stage bleaching technology is a main raw material, mix ground wood pulp 40% and chemical wood pulp 10%(all by weight, proportioning down together), after three kinds of slurries are discongested respectively, pull an oar, are cooperated, through screening, purification, copy wide for 1760mm, design speed be on 250 meters/minute fourdrinier wire multi-cylinder paper machines, the machine hand is 170～180 meters/minute as speed, and quantitative 49 ± 2g/m manufactures paper with pulp
2The bagasse newsprint;
Embodiment 2. mixes ground wood pulp 35% and chemical wood pulp 8% proportioning with the bleaching bagasse pulp 57% with embodiment 1 technology, and all the other technologies and embodiment 1 are together;
Embodiment 3. mixes ground wood pulp 40% and chemical wood pulp 9% proportioning with the bleaching bagasse pulp 51% with embodiment 1 technology, and all the other technologies and embodiment 1 are together;
Embodiment 4. mixes defibrination 37.7% and chemical wood pulp 9.8% proportioning with the bleaching bagasse pulp 52.5% with embodiment 1 technology, and all the other technologies and embodiment 1 are together;
Embodiment 5. mixes ground wood pulp 30% and chemical wood pulp 10% proportioning with the bleaching bagasse pulp 60% with embodiment 1 technology, and all the other technologies and embodiment 1 are together;
Most preferred embodiment 6. mixes ground wood pulp 38% and chemical wood pulp 10% proportioning with the bleaching bagasse pulp 52% with embodiment 1 technology, and all the other technologies and embodiment 1 are together.
This newspaper paper of bagasse produced by industrial process detects through national paper quality supervision and inspection center: the C that reaches BG1910-89
SClassification standard, production cost reduces greatly, and the bagasse in sugar refinery is fully fully utilized, can save timber resources more than 52%, reduce national foreign exchange expenditure, have good economic benefits and social benefit, development non-wood fibrous raw material field of papermaking is had great significance.
Claims (2)
1, newspaper paper of bagasse produced by industrial process, after it is characterized in that removing marrow through the two-stage half wet process with the bagasse in sugar refinery, the wet method bulk cargo stores up, the bleaching bagasse pulp 50～60% of soda pulping and conventional tri-stage bleaching technology is a main raw material, mix ground wood pulp 30～40% and chemical wood pulp 8～10% (all by weight) proportioning, after three kinds of slurries are discongested respectively, pull an oar, are cooperated, through screening, purification, the bagasse newsprint of in 1760 fourdrinier wire multi-cylinder paper machine systems, manufacturing paper with pulp.
2, by the described newspaper paper of bagasse produced by industrial process of claim 1, it is characterized in that the wide 1760mm of being copies in fourdrinier wire multi-cylinder paper machine system, design speed is 250 meters/minute, the machine hand is 170～180 meters/minute as speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94103093 CN1099446A (en) | 1994-03-28 | 1994-03-28 | Newspaper paper of bagasse produced by industrial process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94103093 CN1099446A (en) | 1994-03-28 | 1994-03-28 | Newspaper paper of bagasse produced by industrial process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1099446A true CN1099446A (en) | 1995-03-01 |
Family
ID=5030945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94103093 Pending CN1099446A (en) | 1994-03-28 | 1994-03-28 | Newspaper paper of bagasse produced by industrial process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1099446A (en) |
-
1994
- 1994-03-28 CN CN 94103093 patent/CN1099446A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |