CN102877354A - Method for producing carbon-free and thermosensitive body paper by using large proportion of chemithermomechanical pulp - Google Patents
Method for producing carbon-free and thermosensitive body paper by using large proportion of chemithermomechanical pulp Download PDFInfo
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- CN102877354A CN102877354A CN2012103980924A CN201210398092A CN102877354A CN 102877354 A CN102877354 A CN 102877354A CN 2012103980924 A CN2012103980924 A CN 2012103980924A CN 201210398092 A CN201210398092 A CN 201210398092A CN 102877354 A CN102877354 A CN 102877354A
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Abstract
The invention discloses a method for producing a carbon-free and thermosensitive body paper by using large proportion of chemithermomechanical pulp, comprising the working procedures such as sizing, discharging pulp by a pulp flowing box, dewatering by a mesh part, dewatering in a squeezing way, previously drying, coating, carrying out post drying, carrying out press polish, and reeling. The raw materials used by the sizing working procedure are chemithermomechanical pulp and chemical pulp according to the proportion of (6-7.5):(3-3.5), enabling the chemithermomechanical pulp and the chemical pulp subjected to the sizing working procedure to be respectively flowed and transported to different parts of a pulp discharge working procedure of the pulp flowing box, the pulp flowing box in the pulp flowing box sizing working procedure is a three-layer pulp flowing box, the chemical pulp of the sizing working procedure is evenly distributed into an upper-layer pulp distribution system and a lower-layer pulp distribution system of the pulp flowing box, the chemithermomechanical pulp flows to a middle-layer pulp distribution system of the pulp flowing box, and the three-layer pulp flowing out of the pulp flowing box is dewatered by the mesh part. According to the method, not only can the fineness and the smoothness of the surface of a finished paper be guaranteed, but also the paper can not be faded and aged after being stored for a long term.
Description
Technical field
The invention belongs to pulp technology for making paper, particularly a kind of vast scale useization machine slurry is produced method carbon-free, the temperature-sensitive body paper.
Background technology
Carbonless paper and heat-sensitive paper belong to the high-grade culture paper using, and be very strict to the quality requirement of paper, and therefore the requirement to carbon-free body paper and temperature-sensitive body paper is also very high in deep processing.Not only require body paper that qualified physical index is arranged, fine and smooth outward appearance, good printing performance, and must be able to preserve for a long time.Because mechanical pulp leaves a lot of non-cellulose composition, the paper of manufacturing paper with pulp out is subjected to the light irradiation that the color change of paper and paper web are become fragile easily, is unfavorable for long-time reservation.And because change machine slurry content large the time, paper surface is more coarse, affects next step processing.At present, China's poplar machine plasma production capacity reaches 2,000,000 ton/years, because the yield of bleached chemi-mechanical pulp is higher than chemical wood pulp far away, adopts bleached chemi-mechanical pulp, can significantly reduce the cost of raw material.For the production of carbon-free body paper and temperature-sensitive body paper, raw material all are to adopt 100% chemical pulp at present but for above-mentioned reasons.China is the production and consumption big country of paper and cardboard, and the output of paper and cardboard and consumption figure are all at the forefront in the world.But, China is again the serious deficient country of wood fibre resource, and the chemical wood pulp level of production is not well developed, and causes the chemical pulp quality of China low, therefore if produce high-grade carbonless copying body paper and temperature-sensitive body paper, the essential commercial wood pulp that uses external import.Along with the reinforcement of the whole world to ecological environmental protection, the cost of timber and products thereof import can be more and more higher, therefore, must utilize fully efficiently the existing wood fibre resource of China.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency provides a kind of vast scale useization machine slurry to produce method carbon-free, the temperature-sensitive body paper, and vast scale is joined the machine slurry of collecting alms and produced carbon-free, temperature-sensitive body paper, and the quality of paper reaches all standard.
For achieving the above object, the present invention is by the following technical solutions:
A kind of vast scale useization machine slurry is produced carbon-free, the method of temperature-sensitive body paper, comprise starching, the head box pulp, the wet end dehydration, press dewatering, predrying, coating, rear drying, press polish, coiling process, used being of the raw material machine of the slurry process of going up slurry and chemical pulp in the ratio of 5-7:3-5, the change machine of upper slurry process slurry and chemical pulp respectively stream are delivered in the head box that head box goes out slurry process, the head box that head box goes out in the slurry process is three layers of head box, the chemical pulp mean allocation of upper slurry process is in the upper and lower cloth slurry system of head box, change machine slurry stream is delivered to the middle layer cloth slurry system of head box, dewaters by the wet end dehydration procedure from head box three layers of slurry out.
Above-mentioned vast scale useization machine slurry is produced method carbon-free, the temperature-sensitive body paper, and being of the raw material machine slurry that described upper slurry process is used and chemical pulp are in the ratio of 7:3.
Above-mentioned vast scale useization machine slurry is produced method carbon-free, the temperature-sensitive body paper, and described wet end dehydration procedure adopts the wet end of folder net forming.
Adopt technique scheme, the present invention has following advantage: China's poplar machine plasma production capacity reaches 2,000,000 ton/years.Because the yield of bleached chemi-mechanical pulp is higher than chemical wood pulp far away, adopt bleached chemi-mechanical pulp, not only can reduce the cost of raw material, and the paper pulp of system has good bulky performance, strength character and optical property, not only be used for white card, the contour quantitative back flow liner of chromo board, also be used for gradually the high-grade cultural papers such as high-grade two glue, electro-photographic paper and LWC.
Owing to the present invention adopts constant part chemical pulp and the respectively dispensing of change machine slurry, head box adopts the head box of three layers of cloth slurry system, and bottom and top layer all are a small amount of chemical pulps, and starch with a large amount of change machines in the intermediate layer.The wet end of folder net forming is adopted in the wet end dehydration.Slurry does not have free turbulence and mixing when moisture is large, can guarantee that the one-tenth paper of manufacturing paper with pulp out and the surface of contact with air are chemical pulps, does not contain a large amount of lignin etc. easily by the material of gas oxidation.So not only can guarantee into the fine and smooth type on paper surface, can also guarantee the long-term storage of paper and do not fade aging.Owing to can use in a large number highization of yield machine slurry, reduced the chemical pulp use amount, reduced production cost.
Description of drawings
Fig. 1 is the structural representation of head box of the present invention and wet end dehydration procedure.
The specific embodiment
Embodiment one: a kind of vast scale useization machine slurry is produced carbon-free, the method of temperature-sensitive body paper, comprise starching, the head box pulp, the wet end dehydration, press dewatering, predrying, coating, rear drying, press polish, coiling process, used being of the raw material machine of the slurry process of going up slurry and chemical pulp in the ratio of 5-7:3-5, the change machine of upper slurry process slurry and chemical pulp respectively stream are delivered in the head box that head box goes out slurry process, the head box that head box goes out in the slurry process is three layers of head box, the chemical pulp mean allocation of upper slurry process is in the upper and lower cloth slurry system of head box, change machine slurry stream is delivered to the middle layer cloth slurry system of head box, dewater by the wet end dehydration procedure from head box three layers of slurry out, the wet end dehydration procedure adopts the wet end of folder net forming.
Embodiment two: change machine slurry and chemical pulp are delivered to three layers of head box 4 according to the ratio of 7:3 by constant part stream, and wherein the chemical pulp mean allocation is in the upper strata 3 and 2 cloth slurry systems of lower floor of head box, and change machine slurry stream is delivered to the middle level 1 of head box.By folder net shaping 5 dehydrations, press dewatering, predrying, coating, the production of body paper is finished in rear drying, press polish, batch etc.According to above-mentioned method produce carbon-free, temperature-sensitive body paper, quantitatively 40g/m
2, thickness 0.056mm, moisture 7%, smoothness 75.2s/68.5s, tensile index 78.4/34.8, tearability 248mN/268mN, opacity 75%.
The present invention is according to the actual needs of producing, and the proportioning of chemical pulp and change machine slurry can be regulated, but the ratio of chemical pulp must not be less than 30% in the wet end furnish.
Claims (3)
1. a vast scale useization machine slurry is produced carbon-free, the method of temperature-sensitive body paper, comprise starching, the head box pulp, the wet end dehydration, press dewatering, predrying, coating, rear drying, press polish, coiling process, it is characterized in that: used being of the raw material machine of the slurry process of going up slurry and chemical pulp in the ratio of 5-7:3-5, the change machine of upper slurry process slurry and chemical pulp respectively stream are delivered in the head box that head box goes out slurry process, the head box that head box goes out in the slurry process is three layers of head box, the chemical pulp mean allocation of upper slurry process is in the upper and lower cloth slurry system of head box, change machine slurry stream is delivered to the middle layer cloth slurry system of head box, dewaters by the wet end dehydration procedure from head box three layers of slurry out.
2. vast scale useization machine slurry according to claim 1 is produced method carbon-free, the temperature-sensitive body paper, it is characterized in that: being of the raw material machine slurry that described upper slurry process is used and chemical pulp are in the ratio of 7:3.
3. vast scale useization machine slurry according to claim 2 is produced method carbon-free, the temperature-sensitive body paper, and it is characterized in that: described wet end dehydration procedure adopts the wet end of folder net forming.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103980924A CN102877354A (en) | 2012-10-19 | 2012-10-19 | Method for producing carbon-free and thermosensitive body paper by using large proportion of chemithermomechanical pulp |
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| CN2012103980924A CN102877354A (en) | 2012-10-19 | 2012-10-19 | Method for producing carbon-free and thermosensitive body paper by using large proportion of chemithermomechanical pulp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805729B (en) * | 2015-04-24 | 2016-09-28 | 岳阳林纸股份有限公司 | A kind of manufacture method of industry precoating body paper |
| RU2642801C1 (en) * | 2016-12-16 | 2018-01-26 | Открытое акционерное общество "Центральный научно-исследовательский институт бумаги" (ОАО "ЦНИИБ") | Composition for manufacturing heat-sensitive paper |
| CN115748300A (en) * | 2022-11-24 | 2023-03-07 | 寿光晨鸣美术纸有限公司 | Super-high-elasticity thermal sensitive paper and production method thereof |
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| US6068734A (en) * | 1995-11-24 | 2000-05-30 | Sca Hygiene Paper Ab | Soft, bulky absorbent paper containing chemithermomechanical pulp |
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| CN102433791A (en) * | 2011-10-14 | 2012-05-02 | 安徽山鹰纸业股份有限公司 | Production method for ultra-low quantitative corrugated core paper and product produced thereby |
| CN102493261A (en) * | 2011-12-30 | 2012-06-13 | 东莞地龙纸业有限公司 | Production method of kraft cardboard with ultra low gram weight |
| CN102677548A (en) * | 2012-05-28 | 2012-09-19 | 金红叶纸业集团有限公司 | Life paper and manufacture method thereof |
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| US6068734A (en) * | 1995-11-24 | 2000-05-30 | Sca Hygiene Paper Ab | Soft, bulky absorbent paper containing chemithermomechanical pulp |
| CN102268845A (en) * | 2011-07-27 | 2011-12-07 | 岳阳林纸股份有限公司 | Food packing paper and production method thereof |
| CN102330378A (en) * | 2011-09-16 | 2012-01-25 | 衢州五洲特种纸业有限公司 | Production process of decorative base paper |
| CN102433798A (en) * | 2011-09-29 | 2012-05-02 | 河南省江河纸业有限责任公司 | Thermal paper manufacturing method capable of preventing mechanical pulp/ chemical mechanical pulp thermal paper from fading |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104805729B (en) * | 2015-04-24 | 2016-09-28 | 岳阳林纸股份有限公司 | A kind of manufacture method of industry precoating body paper |
| RU2642801C1 (en) * | 2016-12-16 | 2018-01-26 | Открытое акционерное общество "Центральный научно-исследовательский институт бумаги" (ОАО "ЦНИИБ") | Composition for manufacturing heat-sensitive paper |
| CN115748300A (en) * | 2022-11-24 | 2023-03-07 | 寿光晨鸣美术纸有限公司 | Super-high-elasticity thermal sensitive paper and production method thereof |
| CN115748300B (en) * | 2022-11-24 | 2023-10-03 | 寿光晨鸣美术纸有限公司 | Super-high-loose thermosensitive paper and production method thereof |
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Application publication date: 20130116 |