CN87106132A - A kind of process of making offset paper - Google Patents
A kind of process of making offset paper Download PDFInfo
- Publication number
- CN87106132A CN87106132A CN 87106132 CN87106132A CN87106132A CN 87106132 A CN87106132 A CN 87106132A CN 87106132 CN87106132 CN 87106132 CN 87106132 A CN87106132 A CN 87106132A CN 87106132 A CN87106132 A CN 87106132A
- Authority
- CN
- China
- Prior art keywords
- pulp
- paper
- concentration
- making
- oar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Paper (AREA)
Abstract
A kind of process of making offset paper, it be with the bleaching Sulfite Reed Pulp be raw material, with low concentrated carding behind its high consistency beating, mix then with anion-polyacrylamide and cationic-type polyacrylamide and make reinforcing agent in 2: 1 ratio, carry out applying glue again, copy paper.The paper that this method makes has the whiteness height, is difficult for brightness reversion and is difficult for the advantage of hair and powder dropping, and can save a large amount of wood pulps.
Description
The invention belongs to paper technology.
At present, being called offset printing paper abroad all makes with bleached wood pulp or mixed pulp.Domestic offset paper is to allocate part into bleached sulfate reed pulp partly to float groundwood pulp, and adopting manufactures paper with pulp on paper machine behind traditional low consistency pulping forms.The paper that this method is produced has shortcomings such as the low easy brightness reversion of whiteness.Though do not have above-mentioned shortcoming with the bleaching Sulfite Reed Pulp typographic printing paper that forms of after hanging down consistency pulping, on paper machine, manufacturing paper with pulp,, and can not be used for web offset printing because of the easy hair and powder dropping of paper.
The objective of the invention is to lack wood pulp in order to adapt in China's paper making raw material, and the sufficient present situation of straw pulp, develop a kind of with Sulfite Reed Pulp or to mix a small amount of chemical wood pulp therein be raw material, manufacturing whiteness height is difficult for the process of the offset paper that is suitable for the high speed web offset printing of brightness reversion.
Main points of the present invention are with the bleaching Sulfite Reed Pulp or to mix a small amount of chemical wood pulp therein be raw material, through high consistency beating, applying glue, copy paper, and add the process that reinforcing agent is made offset paper in paper pulp.Its technical process is as follows:
1, is raw material with the bleaching Sulfite Reed Pulp, sends into high-density paste mill after the concentration with its simmer down to 18～30% and pull an oar that its abrasive disk space is 0.1～0.4mm, 16～24 ° of SR of making beating back beating degree rising.
In order to strengthen interfibrous adhesion in the page, in the paper machine flow box or before paper pulp in add with respect to 0.05～0.3% consumption of absolute dried paper pulp, the concentration that is mixed with in 2: 1 ratio with anion-polyacrylamide and cationic-type polyacrylamide is that 0.05～0.25% molecular weight is the reinforcing agent of 50-70 ten thousand.
2, will bleach and send into high-density paste mill behind the Sulfite Reed Pulp simmer down to 18-30% and pull an oar, its abrasive disk space is 0.1～0.4mm, and beating degree 16～24 ° of SR that raise in making beating back are diluted to it paper pulp of 2.5～5% then.In addition, be that 3～5% bleached wood pulp is pulled an oar with concentration, the control beating degree is increased to behind 45～55 ° of SR and kowtows reed pulp and mix, and its amount of allocating into is below 20%.The above-mentioned slurry that mixes is carried out applying glue, and its technology is identical with prior art.
Copy paper at last, its technology and prior art difference only be paper pulp enter in the flow box or before add with respect to 0.05～0.3% ratio of absolute dried paper pulp, the concentration that is made in 2: 1 ratio with anion-polyacrylamide and cationic-type polyacrylamide is that 0.05～0.25% molecular weight is 50～700,000 reinforcing agent.
Make offset paper with said method, can save a large amount of wood pulps, suitable China lacks wood pulp and the national conditions of straw pulp abundance.In addition, have the whiteness height with the offset paper of this manufactured, be difficult for brightness reversion and be difficult for the advantage of hair and powder dropping, its quality meets China National Light Industrial Products Department's standard fully, is suitable for the high speed web offset printing.
Embodiment 1:
With the bleaching Sulfite Reed Pulp is raw material, sends into high-density paste mill after the concentration with its simmer down to 20～25% and pulls an oar, and its abrasive disk space is 0.1～0.4mm, 20～22 ° of SR of making beating back beating degree rising, and high dense grinding carried out applying glue after a mouthful slurry is diluted to 3～6%.Promptly in slurry, add 0.3～0.6% rosin (gum rosin emulsion concentration is 1.8～2.0%), mix the back and add and be diluted to 2.2 ± 0.1% concentration after 4.0～6.0% alumina (alumina concentration is 18～22%) mixes and be pulping.At last pulping is sent to paper machine papermaking.Promptly pulping is sent into regulating box, be diluted to 2.0 ± 0.1% concentration with paper machine enriched water, discongest through jordan and to enter towards stock tank, add plain boiled water and two sections, three sections good slurries of scummer and be diluted to and send into scummer after 0.5～0.8% the concentration and remove sandstone and impurity, one section good slurry is sent into selectifier and is further removed the gred.Is concentration that 0.05～0.20% molecular weight is that 50～700,000 reinforcing agent enters the flow box of paper machine with after being pumped into selectifier and paper pulp mixing, or reinforcing agent is sent into flow box mix with paper pulp.Reinforcing agent is that anion-polyacrylamide and cationic-type polyacrylamide are formulated in 2: 1 ratio.Reinforcing agent mixes in the paper pulp with 0.10～0.30% ratio with respect to absolute dried paper pulp.Adding is sent into the paper machine afterwards with respect to the talcum powder (its concentration is 18～20%) of absolute dried paper pulp 6～12% and is copied paper in flow box, and page is into paper through the calender press polish.
In order to eliminate group of the slurry in the paper pulp and fibre bundle behind the high consistency beating, can before applying glue, increase the low concentrated carding operation, that is: the paper pulp thin up after will pulling an oar becomes 2.5～4.0% concentration, discongests through disc mill, and then carries out applying glue.
Advantage:
Embodiment 2:
To bleach Sulfite Reed Pulp and after Water Extraction Machinery simmer down to 20～25% concentration, send into the high-density paste mill making beating, its abrasive disk space is 0.1～0.4mm, 20～22 ° of SR of making beating back beating degree rising, thin up becomes 2.0～3.5% concentration to discongest through disc mill then, is not as the criterion to having slurry group or fibre bundle.
Chemical wood pulp plate size degradation is diluted to 3～4% concentration and pulls an oar, the control beating degree is elevated to 50～55 ° of SR, mixes with 1/10 ratio then and kowtows in the reed pulp.
Above-mentioned mixed pulp is carried out applying glue to be handled.Promptly add the rosin (its latex solution concentration is 1.8～2.2%) of relative absolute dried paper pulp 0.3～0.6% in mixed pulp, the alumina (its concentration is 18～22%) of adding 4.0～6.0% is diluted to 2～3% concentration after mixing after mixing, and is pulping.
Pulping is sent to paper machine papermaking.That is: earlier pulping is sent in the regulating box, be diluted to 2.0 ± 0.1% concentration with paper machine enriched water, discongest through jordan and to enter towards stock tank, add plain boiled water and two sections, three sections good slurries of scummer and be diluted to and send into scummer after 0.5～0.8% the concentration and remove sandstone and impurity, one section good slurry is sent into selectifier and is further removed the gred.Is concentration that 0.05～0.20% molecular weight is to enter the flow box of paper machine after 50～700,000 reinforcing agent is sent into selectifier and paper pulp is mixed, or reinforcing agent is sent into flow box mix with paper pulp.Reinforcing agent is that anion-polyacrylamide and cationic-type polyacrylamide are formulated in 2: 1 ratio.Reinforcing agent mixes in the paper pulp with 0.10～0.30% ratio with respect to absolute dried paper pulp.Send into the paper machine behind 6～12% of the relative absolute dried paper pulp of adding the talcum powder (its concentration is 18～20%) and copy paper in flow box, page is into paper through the calender press polish.
Claims (5)
1, a kind of process of making offset paper comprises making beating, applying glue, machine hand's preface, it is characterized in that:
(1) in pulping process, be raw material with the bleaching Sulfite Reed Pulp, to send into high-density paste mill after the concentration with its simmer down to 18～30% and pull an oar, its abrasive disk space is 0.1～0.4mm, 16～24 ° of SR of making beating back beating degree rising.
(2) in paper-making process, in flow box or before add with respect to 0.05～0.3% consumption of absolute dried paper pulp, the concentration that is mixed with in 2: 1 ratio with anion-polyacrylamide and cationic-type polyacrylamide is that 0.05～0.25% molecular weight is 50～700,000 reinforcing agent.
2,, it is characterized in that pulling an oar 20～22 ° of SR of making beating back beating degree rising with sending into high-density paste mill behind the bleaching Sulfite Reed Pulp simmer down to 20～25% according to the said process of claim 1.
3,, it is characterized in that discongesting after concentration is 2.5～4% after the making beating paper pulp dilution being become according to the said process of claim 1.
4, a kind of process of making offset paper comprises making beating, applying glue, machine hand's preface, it is characterized in that:
(1) will bleach and send into high-density paste mill behind the Sulfite Reed Pulp simmer down to 18～30% and pull an oar, its abrasive disk space is 0.1～0.4mm, and beating degree 16～24 ° of SR that raise in making beating back are diluted to it paper pulp of 2.5～5% then.
(2) be that 3～5% bleached wood pulp is sent into disc mill and pulled an oar with concentration, beating degree is increased to behind 45～55 ° of SR and kowtows reed pulp and mix, and the proportional quantity of chemical wood pulp is below 20%.
(3) in flow box or before add with respect to 0.05～0.3% ratio of absolute dried paper pulp, the concentration that is mixed with in 2: 1 ratio with anion-polyacrylamide and cationic-type polyacrylamide is that 0.05～0.25% molecular weight is 50～700,000 reinforcing agent.
5,, it is characterized in that pulling an oar 20～22 ° of SR of making beating back beating degree rising with sending into high-density paste mill behind the bleaching Sulfite Reed Pulp simmer down to 20～25% according to the said process of claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87106132A CN1003247B (en) | 1987-09-03 | 1987-09-03 | Process of mfg. papers for books and periodicals of offset printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87106132A CN1003247B (en) | 1987-09-03 | 1987-09-03 | Process of mfg. papers for books and periodicals of offset printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87106132A true CN87106132A (en) | 1988-04-06 |
| CN1003247B CN1003247B (en) | 1989-02-08 |
Family
ID=4815593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87106132A Expired CN1003247B (en) | 1987-09-03 | 1987-09-03 | Process of mfg. papers for books and periodicals of offset printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1003247B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845769A (en) * | 2010-06-08 | 2010-09-29 | 福建希源纸业有限公司 | Paper making process taking reed pulp as raw material |
| CN101245572B (en) * | 2001-04-11 | 2013-02-06 | 国际纸业公司 | Paper articles exhibiting long term storageability |
-
1987
- 1987-09-03 CN CN87106132A patent/CN1003247B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245572B (en) * | 2001-04-11 | 2013-02-06 | 国际纸业公司 | Paper articles exhibiting long term storageability |
| CN101845769A (en) * | 2010-06-08 | 2010-09-29 | 福建希源纸业有限公司 | Paper making process taking reed pulp as raw material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1003247B (en) | 1989-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Holik | Handbook of paper and board | |
| EP0902119B1 (en) | Process for preparing a paper web | |
| JP3085935B2 (en) | Paper web and manufacturing method thereof | |
| US20080264586A1 (en) | Treatment of Pulp | |
| CN101818466B (en) | Double-sided composite card paper and preparation method thereof | |
| CN217536501U (en) | Special grey-bottom white board production system for fruit box | |
| CN108221453A (en) | A kind of preparation method of pure wood pulp true qualities paper for daily use | |
| CN104631196A (en) | Single-layer superlow-gram-weight liner cardboard paper production method | |
| CN105155333A (en) | Manufacturing method of top-grade ivory white offset printing paper | |
| CN108824062B (en) | Production method for producing coated white board paper by using OCC (acrylic acid copolymer) pulp instead of ONP (acrylonitrile-butadiene-styrene) pulp | |
| CN1074073C (en) | Bleaching of filled paper | |
| US4207139A (en) | Method for producing groundwood pulp | |
| CN1208519C (en) | Surface glued newsprinting paper and manufacturing method thereof | |
| CN217266625U (en) | White paperboard production system without coated ash bottom | |
| CN100420791C (en) | Method and equipment for making high-grade life paper by using bagasse as material | |
| CN87106132A (en) | A kind of process of making offset paper | |
| US4966651A (en) | Method of paper making using an abrasive refiner for refining bleached thermochemical hardwood pulp | |
| CN113564957B (en) | Preparation process of micro-coated printing paper | |
| CN1006315B (en) | High extender paper-making process using grass, wood pulp as fibric material | |
| US4410573A (en) | Board made of fibrous material | |
| CN105239442B (en) | A kind of preparation method of lower shrinkage secondary stock neutral sizing | |
| CN103046417B (en) | Coated white board pulping process low in energy consumption | |
| CN106676928B (en) | A kind of method that wealthy mixed sulfate element chlorine free bleaching chemical pulp of needle prepares paper substrate | |
| CN110528308A (en) | A kind of preparation process of high pressure decorative body paper | |
| CN1173094C (en) | Refined high-whiteness newsprint for color printing and its making method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |