CN104611992A - Method for improving surface strength of paper - Google Patents
Method for improving surface strength of paper Download PDFInfo
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- CN104611992A CN104611992A CN201410832955.3A CN201410832955A CN104611992A CN 104611992 A CN104611992 A CN 104611992A CN 201410832955 A CN201410832955 A CN 201410832955A CN 104611992 A CN104611992 A CN 104611992A
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- surface strength
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Abstract
The invention discloses a method for improving the surface strength of paper. The method mainly comprises the following steps: utilizing a paper machine rewet box to realize gluing to paper sheets; gelatinizing a surface gluing agent so as to prepare a water mixed solution with the concentration of 12%; adding the gelatinized surface gluing agent and the water mixed solution into a condensation water tank through a metering valve so as to prepare a surface gluing agent spraying solution with the concentration of 3%; spraying the spraying solution on the surfaces of the paper sheets through the paper machine rewet box. The method has the advantages that the gluing cost and the equipment reforming cost are reduced, and the surface strength of finished paper is effectively improved.
Description
Technical field
The present invention relates to a kind of papermaking process, especially a kind of papermaking process improving paper performance.
Background technology
The production line of newsprint does not have sizing applicator, when changing products Cultural Paper, effectively can improve the intensity of paper, but this method production cost is higher, and still there is into the lower problem of paper surface strength by starching the chemicals such as interior interpolation sizing agent and dry strength agent.Newspaper machine for an annual capacity 200000 tons increases surface size press about needs investment 1.4 hundred million yuan, and the investment payback time is quite long.And affect by space constraint, the factors such as transformation that stop production, difficulty is quite large.
Summary of the invention
The object of the invention is to avoid the deficiencies in the prior art and a kind of method improving surface strength of paper is provided.Utilize existing equipment, do not need to carry out shutdown transformation, only equipment component and technique are adjusted, the object can realize increasing considerably page surface intensity, reducing production cost, and reach the requirement of Cultural Paper effects on surface intensity.
Technical scheme of the present invention is: a kind of method improving surface strength of paper, and mainly utilize paper machine rewetting case to realize sizing, concrete steps are:
1) by Cypres gelatinization, the water mixed solution of concentration 12% is mixed with;
2) Cypres water mixed solution is added condensate water pot by metering valve, make the Cypres spray liquid becoming concentration 3% in condensate water pot;
3) spray liquid is sprayed onto page surface by paper machine rewetting case nozzle.
Described Cypres is starch.
Threeway offered by condensed water water inlet pipe on hold-up tank, is connected with Cypres tank and quantifier.
The invention has the beneficial effects as follows: save applying glue cost and scrap build cost, effectively improve into the surface strength of paper.
Detailed description of the invention:
Improve a method for surface strength of paper, mainly utilize paper machine rewetting case to realize sizing, concrete steps are:
1) by Cypres gelatinization, the water mixed solution of concentration 12% is mixed with;
2) Cypres water mixed solution is added condensate water pot by metering valve, make the Cypres spray liquid becoming concentration 3% in condensate water pot;
3) spray liquid is sprayed onto page surface by paper machine rewetting case nozzle.
Described Cypres is starch.
Threeway offered by condensed water water inlet pipe on hold-up tank, is connected with Cypres tank and quantifier.
At Workshop Production 55g/m
2brilliant white wood-free paper, application before and after Contrast on effect be:
| Page banner | Before transformation | After transformation | Contrast |
| Surface strength, m/s | 0.72 | 1.05 | 45.83% |
| Tensile index, Nm/s | 42.5 | 45.1 | 6.12% |
| Tear index, mNm 2/s | 5.88 | 6.02 | 2.38% |
| Roughness, μm | 3.55 | 3.05 | -14.08% |
Illustrate: above index, from temperature 23 DEG C, under humidity 50% laboratory with constant temperature and constant humidity condition, detects after balance 24h.
As can be seen from the above table, by application the present invention, surface strength can be brought up to improved 1.05 by original 0.72 when producing Cultural Paper, lifting amplitude is 45.83%; Do tensile index, tear index simultaneously and improve 6.12%, 2.38% respectively; Roughness index have also been obtained obvious improvement.
Production cost contrasts:
For the paper machine of an annual capacity 200000 tons, adopt after changing patent, year can save 2,800,000 yuan.
Claims (3)
1. improve a method for surface strength of paper, it is characterized in that: mainly utilize paper machine rewetting case to realize sizing, concrete steps are:
1) by Cypres gelatinization, the water mixed solution of concentration 12% is mixed with;
2) Cypres water mixed solution is added condensate water pot by metering valve, make the Cypres spray liquid becoming concentration 3% in condensate water pot;
3) spray liquid is sprayed onto page surface by paper machine rewetting case nozzle.
2. a kind of method improving surface strength of paper according to claim 1, is characterized in that: described Cypres is starch.
3. a kind of method improving surface strength of paper according to claim 1, is characterized in that: threeway offered by the condensed water water inlet pipe on hold-up tank, is connected with Cypres tank and quantifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410832955.3A CN104611992A (en) | 2014-12-29 | 2014-12-29 | Method for improving surface strength of paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410832955.3A CN104611992A (en) | 2014-12-29 | 2014-12-29 | Method for improving surface strength of paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104611992A true CN104611992A (en) | 2015-05-13 |
Family
ID=53146621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410832955.3A Pending CN104611992A (en) | 2014-12-29 | 2014-12-29 | Method for improving surface strength of paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104611992A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06341095A (en) * | 1993-05-28 | 1994-12-13 | Mitsui Toatsu Chem Inc | Water-resistant surface coating agent and coated paper using the same agent |
| CN102061642A (en) * | 2010-11-19 | 2011-05-18 | 天津科技大学 | Method for improving intensity of corrugated medium paper and paperboard by using pulping waste liquor of high-yield pulp |
| CN202298341U (en) * | 2011-11-03 | 2012-07-04 | 山东天地缘实业有限公司 | Totally-closed efficient steam condensate recovery system for paper machine |
| CN202577047U (en) * | 2012-04-23 | 2012-12-05 | 江阴比图特种纸板有限公司 | Surface spraying device in paper production process |
| CN102912691A (en) * | 2012-10-18 | 2013-02-06 | 山东晨鸣纸业集团股份有限公司 | Coated craft paper and production method thereof |
| CN103556538A (en) * | 2013-11-16 | 2014-02-05 | 玖龙浆纸（乐山）有限公司 | Sizing method for high-strength corrugated paper |
-
2014
- 2014-12-29 CN CN201410832955.3A patent/CN104611992A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06341095A (en) * | 1993-05-28 | 1994-12-13 | Mitsui Toatsu Chem Inc | Water-resistant surface coating agent and coated paper using the same agent |
| CN102061642A (en) * | 2010-11-19 | 2011-05-18 | 天津科技大学 | Method for improving intensity of corrugated medium paper and paperboard by using pulping waste liquor of high-yield pulp |
| CN202298341U (en) * | 2011-11-03 | 2012-07-04 | 山东天地缘实业有限公司 | Totally-closed efficient steam condensate recovery system for paper machine |
| CN202577047U (en) * | 2012-04-23 | 2012-12-05 | 江阴比图特种纸板有限公司 | Surface spraying device in paper production process |
| CN102912691A (en) * | 2012-10-18 | 2013-02-06 | 山东晨鸣纸业集团股份有限公司 | Coated craft paper and production method thereof |
| CN103556538A (en) * | 2013-11-16 | 2014-02-05 | 玖龙浆纸（乐山）有限公司 | Sizing method for high-strength corrugated paper |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150513 |
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| RJ01 | Rejection of invention patent application after publication |