CN102154935B - Light paper made by blending complete high-yield pulp and papermaking technology thereof - Google Patents
Light paper made by blending complete high-yield pulp and papermaking technology thereof Download PDFInfo
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- CN102154935B CN102154935B CN2010106187174A CN201010618717A CN102154935B CN 102154935 B CN102154935 B CN 102154935B CN 2010106187174 A CN2010106187174 A CN 2010106187174A CN 201010618717 A CN201010618717 A CN 201010618717A CN 102154935 B CN102154935 B CN 102154935B
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Abstract
The invention discloses a light paper made of complete high-yield pulp and a papermaking technology thereof, belonging to the technical field of papermaking. The pulp of the light paper is poplar APMP (Alkaline Peroxide Mechanical Pulp) pulp and needle mechanical pulp; a ternary retention-aid filter-aid system PAC (Poly Aluminium Chloride) +CPAM (Cationic Polyacrylamide) +APAM (Anionic Polyacrylamide) is adopted, and chelating agent DTPA (Diethylene Triamine Pentacetic Acid) is adopted; the amount of other auxiliary materials is as follows: (A) the addition of AKD (Alkyl Ketene Dimer) is 1.1-1.3wt% of oven dry stock; and (B) the amount of the filler is 200-280kg/t of oven dry stock. The light paper produced by the invention has the characteristics of fine and smooth surface, high smoothness, small both-side difference, high original whiteness and low papermaking cost, is pure and natural and belongs to an environmentally-friendly product.
Description
Technical field
The invention belongs to pulp technology for making paper, be specifically related to a kind of overall height yield slurry and join light paper and the papermaking process of copying thereof.
Background technology
Light paper has characteristics such as color and luster is soft naturally, papery bulky.Light paper does not contain brightening agent, and long-time reading can not cause visual fatigue and injury, and sense organ is more comfortable.The cream-coloured dim gloss of light paper makes printed images clear, and third dimension is strong, can reduce the fatigue of eyes.Light paper papery bulky, printed matter weight is lighter relatively, can alleviate reader's burden.At present, light paper has the trend that progressively replaces two-sided hectograph paper, and is very welcome on market.General light paper wet end furnish is that APMP slurry is joined and copied part needle mechanical pulp and part needle chemical pulp on the market, and needle chemical pulp water consumption is big, and pollutional load is serious; Yield is lower; Cost an arm and a leg, particularly 2010, needle chemical pulp ton slurry price was up to 7000 yuans.Without the needle chemical pulp, become the common aspiration of light paper manufacturer.But on existing technical foundation, produce light paper, often cause the tensile strength of paper low without the needle chemical pulp; It is undesired to produce, frequent broken end, and the one way retention is low; The circulating load amount is big in the plain boiled water, and system is dirty soon, and flush cycle is short; Influence paper machine output, the CIE whiteness is low, is not very welcome on the market.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide a kind of overall height yield slurry to join light paper and the papermaking process of copying thereof.The present invention joins with Aspen APMP slurry and needle mechanical pulp and copies, and under the situation that lignin content is high in slurry, the research conditions of beating is confirmed the beating process parameter, thereby improves the tensile strength that the adhesion of kowtowing between the pulp fibres of back improves paper, guarantees to produce normally; Research helps the method for staying system and stable pulp brightness, improves wet end one way retention and the whiteness that guarantees into paper, studies the ornamenting effect of wet end simultaneously, improves the printability of paper.It is fine and smooth that the light paper that the present invention produces has the surface, the smoothness height, and the two sides difference is little, and former degree in vain is high, simple nature, the characteristics that the cost of manufacturing paper with pulp is low belong to green pure environment-friendly products.
For realizing above-mentioned purpose, technical scheme of the present invention is following:
A kind of overall height yield slurry is joined the light paper papermaking process of copying, and it is characterized in that:
(1) slurry is Aspen APMP slurry and needle mechanical pulp, and the mass percent of two kinds of slurries is: Aspen APMP slurry 40～60%, needle mechanical pulp 60-40%;
(2) join slurry before, Aspen APMP slurry and needle mechanical pulp quality index:
The Aspen APMP slurry: concentration 5.4 ± 0.1%, 53～60 ° of SR of beating degree, weight in wet base 1.1 ± 0.1g,
Needle mechanical pulp: concentration 5.4 ± 0.1%, 50～58 ° of SR of beating degree, weight in wet base 5.3 ± 0.1g;
(3) adopt ternary retention aid and filtering aid system PAC (polyaluminium chloride)+CPAM (PAMC)+APAM (PAMA), wherein CPAM adds point for before the pressurized screen, and addition is a 250-350g/t paper; APAM adds point for behind the pressurized screen, and addition is a 250-350g/t paper, and the PAC consumption is a 2-4kg/t paper; Divide two places to add, one is in header box, and its consumption is total consumption 60%～75%; Remaining is added in white water chest, and the consumption of three kinds of retention agents all becomes paper relatively; Its one way retention of manufacturing paper with pulp is more than 75%;
(4) multiple spot adds chelating agent DTPA; DTPA adds point: hydrabrusher, kowtow forebay and plain boiled water mixing pit; Its total addition is the 3-6kg/t oven dry stock; Addition: hydrabrusher is the 0.75-1.5kg/t oven dry stock, and kowtowing the forebay is the 1.5-4.5kg/t oven dry stock, and the plain boiled water mixing pit is the 0.75-1.5kg/t oven dry stock;
(5) other supplementary product consumption: (A) the AKD addition is 1.1%～1.3% of an oven dry stock weight, and (B) amount of filler is the 200-280kg/t oven dry stock;
(6) online slurry pH value: 7.7-8.2.
The overall height yield slurry that makes is joined the light paper quality index of copying: quantitatively be 50-80g/m
2, ash content (CaO ash content) is 12-18%, bulk is 1.78-1.98cm
3/ g.
Other index: moisture 6-8%, the ISO whiteness: >=77%, opacity >=88%, smoothness positive and negative are all greater than 8s, and the vertical tensile index of roll web is greater than 40N.m/g, and print surface intensity on average is not less than 1.0m/s, and smoothness two sides difference is lower than 10%.
The invention has the beneficial effects as follows:
1. all adopt high yield pulp, practiced thrift natural resources, product cost is low;
2. belong to pure environment-friendly and green product, pollutional load is little;
3. the one way of manufacturing paper with pulp retention is high, has prolonged flush cycle;
4. the former degree in vain of product is high, and it is soft to be in bright colors, very welcome on market.
The specific embodiment
Embodiment 1:
Smelting paper industry milky way Co., Ltd adopts the present invention to produce 53g/m in 2009 12 months
2Light paper, its stock quality is than for the APMP slurry is 40 to 60 than needle mechanical pulp, APMP starches 56～58 ° of SR of beating degree; Needle mechanical pulp beating degree is 55～57 ° of SR, and weight in wet base is respectively 1.0～1.2g and 5.3～5.5g, and amount of filler is 22% (220kg/t slurry); Add PAC 2.1kg/t paper at header box, add PAC at white water chest and deciding agent 0.9kg/t paper, at hydrabrusher, kowtow the forebay, white water chest adds chelating agent DTPA; Its consumption is respectively 1kg/t slurry, 2kg/t slurry, 1kg/t slurry, and other supplementary product consumption such as AKD are 1.2% of oven dry stock weight, and CPAM is a 350g/t paper; APAM is a 300g/t paper, its paper stock suspension after head box is sprayed onto the wet end ornamenting through three roads squeezings, deliver to predrying (first and second big drying cylinder) drying after; Moisture Control gets into horizontal sizing applicator applying glue about 8%, again through after drying section (six little cylinders) drying; Get into calender, rewinding machine, the product quality indicator of being produced is following, quantitatively 53.6g/m
2, ISO is former to spend 78.9%, bulk 1.98cm in vain
3/ g, smoothness (just/anti-) 9/11s, moisture 6.8%, ash content 14.8%.Transfer to the client and use, reflection is good.
Embodiment 2:
Smelting paper industry milky way Co., Ltd adopts the present invention to produce 68g/m in 2010 1 month
2Light paper, its stock quality is than for the APMP slurry is 50 to 50 than needle mechanical pulp, APMP starches 56～58 ° of SR of beating degree; Needle mechanical pulp beating degree is 55～57 ° of SR, and weight in wet base is respectively 1.0～1.2g and 5.3～5.5g, and amount of filler is 26% (260kg/t slurry); Add PAC at header box and deciding agent 2.4kg/t paper, add PAC at white water chest and deciding agent 0.6kg/t paper, kowtowing forebay, white water chest, hydrabrusher interpolation chelating agent DTPA; Its consumption is respectively 4.2kg/t slurry, 0.9kg/t slurry, 0.9kg/t slurry, and other supplementary product consumption such as AKD are 1.2% of oven dry stock weight, and CPAM is a 300g/t paper; APAM is a 250g/t paper, its paper stock suspension after head box is sprayed onto the wet end ornamenting through malleation, back-pressure and carrying roller squeezing, deliver to predrying (first and second big drying cylinder) drying after; Moisture Control gets into horizontal sizing applicator applying glue about 8%, again through after drying section (six little cylinders) drying; Get into calender, rewinding machine, the product quality indicator of being produced is following, quantitatively 68.6g/m
2, ISO is former to spend 78.5%, bulk 1.92cm in vain
3/ g, smoothness (just/anti-) 10/13s, moisture 6.8%, ash content 16.8%.Transfer to the client and use, reflection is good.
Claims (2)
1. an overall height yield slurry is joined the light paper of copying, and it is characterized in that, slurry is Aspen APMP slurry and needle mechanical pulp, and the mass percent of two kinds of slurries is: Aspen APMP slurry 40-60%, needle mechanical pulp 60-40%; Adopt ternary retention aid and filtering aid system PAC+CPAM+APAM; Adopt chelating agent DTPA; Other supplementary product consumption: (A) the AKD addition is 1.1% ~ 1.3% of an oven dry stock weight, and (B) amount of filler is the 200-280kg/t oven dry stock.
2. the described overall height yield slurry of claim 1 is joined the papermaking process of the light paper of copying, it is characterized in that,
(1) slurry is Aspen APMP slurry and needle mechanical pulp, and the mass percent of two kinds of slurries is: Aspen APMP slurry 40-60%, needle mechanical pulp 60-40%;
(2) join slurry before, Aspen APMP slurry and needle mechanical pulp quality index:
The Aspen APMP slurry: concentration 5.4 ± 0.1%, beating degree 53 ~ 60oSR, weight in wet base 1.1 ± 0.1g,
Needle mechanical pulp: concentration 5.4 ± 0.1%, beating degree 50 ~ 58oSR, weight in wet base 5.3 ± 0.1g;
(3) adopt ternary retention aid and filtering aid system PAC+CPAM+APAM; Wherein CPAM adds point for before the pressurized screen; Addition is a 250-350g/t paper; APAM adds point for behind the pressurized screen, and addition is a 250-350g/t paper, and the PAC consumption is a 2-4kg/t paper; Divide two places to add; One is in header box, and its consumption is total consumption 60% ~ 75%, and remaining is added in white water chest; The consumption of three kinds of retention agents all becomes paper relatively;
(4) multiple spot adds chelating agent DTPA; DTPA adds point: hydrabrusher, kowtow forebay and plain boiled water mixing pit; Its total addition is the 3-6kg/t oven dry stock; Addition: hydrabrusher is the 0.75-1.5kg/t oven dry stock, and kowtowing the forebay is 1.5-4.5kg/t oven dry stock, and the plain boiled water mixing pit is a 0.75-1.5kg/ t oven dry stock;
(5) other supplementary product consumption: (A) the AKD addition is 1.1% ~ 1.3% of an oven dry stock weight, and (B) amount of filler is the 200-280kg/t oven dry stock;
(6) online slurry pH value: 7.7-8.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106187174A CN102154935B (en) | 2010-12-31 | 2010-12-31 | Light paper made by blending complete high-yield pulp and papermaking technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106187174A CN102154935B (en) | 2010-12-31 | 2010-12-31 | Light paper made by blending complete high-yield pulp and papermaking technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102154935A CN102154935A (en) | 2011-08-17 |
| CN102154935B true CN102154935B (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106187174A Expired - Fee Related CN102154935B (en) | 2010-12-31 | 2010-12-31 | Light paper made by blending complete high-yield pulp and papermaking technology thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505565A (en) * | 2011-12-07 | 2012-06-20 | 山东华泰纸业股份有限公司 | Ternary retention and drainage method for offset paper |
| CN102926288A (en) * | 2012-11-01 | 2013-02-13 | 福建省晋江优兰发纸业有限公司 | Thin paper made of high yield pulp and making process thereof |
| CN107447582B (en) | 2016-06-01 | 2022-04-12 | 艺康美国股份有限公司 | Efficient strength scheme for papermaking in high charge demand systems |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0018007A1 (en) * | 1979-04-23 | 1980-10-29 | Klebstoffwerke Collodin Dr.Schultz & Nauth GmbH | Inverted paper sizing agent and process for its manufacture |
| CN1928220A (en) * | 2006-09-26 | 2007-03-14 | 陕西科技大学 | Process for making pulp with white paper mulberry |
| CN101230552A (en) * | 2008-01-23 | 2008-07-30 | 山东轻工业学院 | Technique for chemomechanical pulp-making of poplar wood |
| CN101435169A (en) * | 2008-12-22 | 2009-05-20 | 浙江华邦特种纸业有限公司 | High performance wallpaper base paper pulp and process for producing wallpaper base paper using the same |
-
2010
- 2010-12-31 CN CN2010106187174A patent/CN102154935B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0018007A1 (en) * | 1979-04-23 | 1980-10-29 | Klebstoffwerke Collodin Dr.Schultz & Nauth GmbH | Inverted paper sizing agent and process for its manufacture |
| CN1928220A (en) * | 2006-09-26 | 2007-03-14 | 陕西科技大学 | Process for making pulp with white paper mulberry |
| CN101230552A (en) * | 2008-01-23 | 2008-07-30 | 山东轻工业学院 | Technique for chemomechanical pulp-making of poplar wood |
| CN101435169A (en) * | 2008-12-22 | 2009-05-20 | 浙江华邦特种纸业有限公司 | High performance wallpaper base paper pulp and process for producing wallpaper base paper using the same |
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| CN102154935A (en) | 2011-08-17 |
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