CN106245410B - A kind of boxboard and preparation method thereof - Google Patents
A kind of boxboard and preparation method thereof Download PDFInfo
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- CN106245410B CN106245410B CN201610741687.3A CN201610741687A CN106245410B CN 106245410 B CN106245410 B CN 106245410B CN 201610741687 A CN201610741687 A CN 201610741687A CN 106245410 B CN106245410 B CN 106245410B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H15/00—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
- D21H15/02—Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
- D21H15/10—Composite fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/01—Waste products, e.g. sludge
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- Paper (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a kind of boxboard and preparation method thereof; first waste plastic is pre-processed; pretreated waste plastic is added in paper pulp; waste plastic and paper pulp are combined together with chemical substance; cooled the handling process for heating up and cooling using heating; obtained boxboard can not only improve intensity, bursting strength, and the waste plastic secondary use of extremely difficult degraded can be had certain help to environmental protection.
Description
Technical field
The present invention relates to a kind of boxboard and preparation method thereof, belong to field of papermaking.
Background technology
Carton is a kind of packing articles material most widely used at present, and cardboard is made by cross cutting, impression, nail case or stick box
Carton.Wherein, high strength paper is kind of an excellent packaging material, is one of element of numerous packing cases, clad plate.Existing skill
In art, production high strength paper is to need to add wood pulp to strengthen case paper intensity more, and wood pulp content reaches 10%-15%, but wood pulp
It is expensive to add production finished product, meanwhile, the loss of the forest reserves can be caused from environmental angle, not meeting industry development will
Ask.Also there is the technology recycled using full waste paper in industry at present, but the paper product intensity deficiency produced, it is difficult to adapt to city
Field demand.There are currently no solving the technical scheme of both problems simultaneously, the production application of environment protection type high-strength boxboard is limited.
The content of the invention
It is an object of the invention to provide a kind of boxboard and preparation method thereof, waste plastic addition in paper pulp, with change
Material is learned to be combined together waste plastic and paper pulp, using specific handling process, can not only improve boxboard intensity,
Bursting strength, and the waste plastic secondary use of extremely difficult degraded can be had certain help to environmental protection.
A kind of preparation method of boxboard, comprises the following steps：
（1）Waste plastic is crushed, 100 mesh sieves are crossed, by solid-to-liquid ratio 1g:14-16ml is added into paraxylene, is heated to
60-70 DEG C, make its dissolving, solvent removed by evaporation at reduced pressure, dry, it is standby to obtain solid；
（2）It is 4-6% paper pulp that waste paper, which is placed in pulper crushing to resolve into mass concentration, and paper pulp successively is delivered into pressure
Sieve and scummer go the removal of impurity；
（3）Going deimpurity paper pulp to be classified into chopped fiber, long fibre into fractionating screen, and by gained chopped fiber,
Long stuff is delivered to the first mill respectively, the second mill carries out mashing processing, respectively obtains fluff pulp, long fine slurry；
（4）Fluff pulp, long fine slurry are respectively delivered to short fine pond, long fine pond deposit uses；
（5）Respectively toward adding step in long fine pond, short fine pond（1）Obtained solid, bonding agent, reinforcing agent, sizing agent,
75-85 DEG C of processing 60-100 minute is first warming up to, then is cooled to 42-48 DEG C of processing 40-60 minute, is continuously heating to 55-60 DEG C
15-25 minutes are handled, are finally cooled to room temperature；
（6）Will be through step（5）Fluff pulp, long fine de-watering of slurries to moisture after processing are 45-55%, then by compound
Roller working process synthesizes paper；
（7）By step（6）Gained paper is dried, and produces boxboard.
Wherein, step（5）In：Step（1）The addition of obtained solid is 13-17kg/t；Bonding agent is dodecyl
Benzene sulfonic acid sodium salt, N- sulfonylmethyls sodium taurocholate, p-Hydroxybenzoic acid isopropyl ester, mass ratio 1:0.7-0.9:1.3-1.5, with reference to
Agent addition is 8-10kg/t；Reinforcing agent is polyethyleneimine, carboxymethyl cellulose, modified starch, mass ratio 1:0.8-
1.0:0.4-0.6, addition 20-25kg/t；Sizing agent is oxidized starch, polyvinyl alcohol, the copolymerization of vinyl acetate-maleic acid anhydride
Thing, mass ratio 1:1.2-1.4:0.5-0.7, addition 4-6kg/t.
Wherein, waste plastic is the plastic bottle containing polyethylene, polybag.
Beneficial effects of the present invention：It is of the invention that first waste plastic is pre-processed, pretreated waste plastic addition
Into paper pulp, waste plastic and paper pulp are combined together with chemical substance, using the processing work of heating-cooling-heating-cooling
Skill, obtained boxboard can not only improve intensity, bursting strength, and can the waste plastic secondary use of extremely difficult degraded,
There is certain help to environmental protection.
Embodiment
The present invention is described in further detail with reference to embodiment.
Embodiment 1：
A kind of preparation method of boxboard, comprises the following steps：
（1）Waste plastic is crushed, 100 mesh sieves are crossed, by solid-to-liquid ratio 1g:14ml is added into paraxylene, is heated to 60
DEG C, make its dissolving, solvent removed by evaporation at reduced pressure, dry, it is standby to obtain solid；
（2）It is 4% paper pulp that waste paper, which is placed in pulper crushing to resolve into mass concentration, and paper pulp successively is delivered into pressurized screen
The removal of impurity is gone with scummer；
（3）Going deimpurity paper pulp to be classified into chopped fiber, long fibre into fractionating screen, and by gained chopped fiber,
Long stuff is delivered to the first mill respectively, the second mill carries out mashing processing, respectively obtains fluff pulp, long fine slurry；
（4）Fluff pulp, long fine slurry are respectively delivered to short fine pond, long fine pond deposit uses；
（5）Respectively toward adding step in long fine pond, short fine pond（1）Obtained solid, bonding agent, reinforcing agent, sizing agent,
First it is warming up to 75 DEG C to handle 60 minutes, then is cooled to 42 DEG C and handles 40 minutes, is continuously heating to 55 DEG C and handles 15 minutes, finally drop
Warm to room temperature；
（6）Will be through step（5）Fluff pulp, long fine de-watering of slurries to moisture after processing are 45%, then pass through composite roll
Working process synthesizes paper；
（7）By step（6）Gained paper is dried, and produces boxboard.
Wherein, step（5）In：Step（1）The addition of obtained solid is 13kg/t；Bonding agent is detergent alkylate sulphur
Sour sodium, N- sulfonylmethyls sodium taurocholate, p-Hydroxybenzoic acid isopropyl ester, mass ratio 1:0.7:1.3, bonding agent addition is
8kg/t；Reinforcing agent is polyethyleneimine, carboxymethyl cellulose, modified starch, mass ratio 1:0.8:0.4, addition is
20kg/t；Sizing agent is oxidized starch, polyvinyl alcohol, vinyl acetate-maleic anhydride copolymer, mass ratio 1:1.2:0.5, add
Dosage is 4kg/t.
Embodiment 2：
A kind of preparation method of boxboard, comprises the following steps：
（1）Waste plastic is crushed, 100 mesh sieves are crossed, by solid-to-liquid ratio 1g:15ml is added into paraxylene, is heated to 65
DEG C, make its dissolving, solvent removed by evaporation at reduced pressure, dry, it is standby to obtain solid；
（2）It is 5% paper pulp that waste paper, which is placed in pulper crushing to resolve into mass concentration, and paper pulp successively is delivered into pressurized screen
The removal of impurity is gone with scummer；
（3）Going deimpurity paper pulp to be classified into chopped fiber, long fibre into fractionating screen, and by gained chopped fiber,
Long stuff is delivered to the first mill respectively, the second mill carries out mashing processing, respectively obtains fluff pulp, long fine slurry；
（4）Fluff pulp, long fine slurry are respectively delivered to short fine pond, long fine pond deposit uses；
（5）Respectively toward adding step in long fine pond, short fine pond（1）Obtained solid, bonding agent, reinforcing agent, sizing agent,
First it is warming up to 80 DEG C to handle 80 minutes, then is cooled to 45 DEG C and handles 50 minutes, is continuously heating to 58 DEG C and handles 20 minutes, finally drop
Warm to room temperature；
（6）Will be through step（5）Fluff pulp, long fine de-watering of slurries to moisture after processing are 50%, then pass through composite roll
Working process synthesizes paper；
（7）By step（6）Gained paper is dried, and produces boxboard.
Wherein, step（5）In：Step（1）The addition of obtained solid is 15kg/t；Bonding agent is detergent alkylate sulphur
Sour sodium, N- sulfonylmethyls sodium taurocholate, p-Hydroxybenzoic acid isopropyl ester, mass ratio 1:0.8:1.4, bonding agent addition is
9kg/t；Reinforcing agent is polyethyleneimine, carboxymethyl cellulose, modified starch, mass ratio 1:0.9:0.5, addition is
22kg/t；Sizing agent is oxidized starch, polyvinyl alcohol, vinyl acetate-maleic anhydride copolymer, mass ratio 1:1.3:0.6, add
Dosage is 5kg/t.
Embodiment 3：
A kind of preparation method of boxboard, comprises the following steps：
（1）Waste plastic is crushed, 100 mesh sieves are crossed, by solid-to-liquid ratio 1g:16ml is added into paraxylene, is heated to 70
DEG C, make its dissolving, solvent removed by evaporation at reduced pressure, dry, it is standby to obtain solid；
（2）It is 6% paper pulp that waste paper, which is placed in pulper crushing to resolve into mass concentration, and paper pulp successively is delivered into pressurized screen
The removal of impurity is gone with scummer；
（3）Going deimpurity paper pulp to be classified into chopped fiber, long fibre into fractionating screen, and by gained chopped fiber,
Long stuff is delivered to the first mill respectively, the second mill carries out mashing processing, respectively obtains fluff pulp, long fine slurry；
（4）Fluff pulp, long fine slurry are respectively delivered to short fine pond, long fine pond deposit uses；
（5）Respectively toward adding step in long fine pond, short fine pond（1）Obtained solid, bonding agent, reinforcing agent, sizing agent,
First be warming up to 85 DEG C handle 100 minutes, then be cooled to 48 DEG C handle 60 minutes, be continuously heating to 60 DEG C handle 25 minutes, finally
It is cooled to room temperature；
（6）Will be through step（5）Fluff pulp, long fine de-watering of slurries to moisture after processing are 55%, then pass through composite roll
Working process synthesizes paper；
（7）By step（6）Gained paper is dried, and produces boxboard.
Wherein, step（5）In：Step（1）The addition of obtained solid is 17kg/t；Bonding agent is detergent alkylate sulphur
Sour sodium, N- sulfonylmethyls sodium taurocholate, p-Hydroxybenzoic acid isopropyl ester, mass ratio 1:0.9:1.5, bonding agent addition is
10kg/t；Reinforcing agent is polyethyleneimine, carboxymethyl cellulose, modified starch, mass ratio 1:1.0:0.6, addition is
25kg/t；Sizing agent is oxidized starch, polyvinyl alcohol, vinyl acetate-maleic anhydride copolymer, mass ratio 1:1.4:0.7, add
Dosage is 6kg/t.
Comparative example 1：
A kind of preparation method of boxboard, comprises the following steps：
（1）Waste plastic is crushed, 100 mesh sieves are crossed, by solid-to-liquid ratio 1g:10ml is added into paraxylene, is heated to 80
DEG C, make its dissolving, solvent removed by evaporation at reduced pressure, dry, it is standby to obtain solid；
（2）It is 8% paper pulp that waste paper, which is placed in pulper crushing to resolve into mass concentration, and paper pulp successively is delivered into pressurized screen
The removal of impurity is gone with scummer；
（3）Going deimpurity paper pulp to be classified into chopped fiber, long fibre into fractionating screen, and by gained chopped fiber,
Long stuff is delivered to the first mill respectively, the second mill carries out mashing processing, respectively obtains fluff pulp, long fine slurry；
（4）Fluff pulp, long fine slurry are respectively delivered to short fine pond, long fine pond deposit uses；
（5）Respectively toward adding step in long fine pond, short fine pond（1）Obtained solid, bonding agent, reinforcing agent, sizing agent,
First be warming up to 70 DEG C handle 120 minutes, then be cooled to 40 DEG C handle 30 minutes, be continuously heating to 50 DEG C handle 30 minutes, finally
It is cooled to room temperature；
（6）Will be through step（5）Fluff pulp, long fine de-watering of slurries to moisture after processing are 40%, then pass through composite roll
Working process synthesizes paper；
（7）By step（6）Gained paper is dried, and produces boxboard.
Wherein, step（5）In：Step（1）The addition of obtained solid is 10kg/t；Bonding agent is detergent alkylate sulphur
Sour sodium, N- sulfonylmethyls sodium taurocholate, p-Hydroxybenzoic acid isopropyl ester, mass ratio 1:0.5:1.8, bonding agent addition is
12kg/t；Reinforcing agent is polyethyleneimine, carboxymethyl cellulose, modified starch, mass ratio 1:1.2:0.3, addition is
18kg/t；Sizing agent is oxidized starch, polyvinyl alcohol, vinyl acetate-maleic anhydride copolymer, mass ratio 1:1.5:0.8, add
Dosage is 7kg/t.
Comparative example 2：
A kind of preparation method of boxboard, comprises the following steps：
（1）It is 4-6% paper pulp that waste paper, which is placed in pulper crushing to resolve into mass concentration, and paper pulp successively is delivered into pressure
Sieve and scummer go the removal of impurity；
（2）Going deimpurity paper pulp to be classified into chopped fiber, long fibre into fractionating screen, and by gained chopped fiber,
Long stuff is delivered to the first mill respectively, the second mill carries out mashing processing, respectively obtains fluff pulp, long fine slurry；
（3）Fluff pulp, long fine slurry are respectively delivered to short fine pond, long fine pond deposit uses；
（4）Respectively toward addition bonding agent, reinforcing agent, sizing agent in long fine pond, short fine pond, 75 DEG C of processing 60 are first warming up to
Minute, then be cooled to 42 DEG C and handle 40 minutes, it is continuously heating to 55 DEG C and handles 15 minutes, is finally cooled to room temperature；
（6）Will be through step（5）Fluff pulp, long fine de-watering of slurries to moisture after processing are 45%, then pass through composite roll
Working process synthesizes paper；
（7）By step（6）Gained paper is dried, and produces boxboard.
Remaining is the same as embodiment 1.
Comparative example 3：
A kind of preparation method of boxboard, comprises the following steps：
（1）Waste plastic is crushed, 100 mesh sieves are crossed, by solid-to-liquid ratio 1g:15ml is added into paraxylene, is heated to 65
DEG C, make its dissolving, solvent removed by evaporation at reduced pressure, dry, it is standby to obtain solid；
（2）It is 5% paper pulp that waste paper, which is placed in pulper crushing to resolve into mass concentration, and paper pulp successively is delivered into pressurized screen
The removal of impurity is gone with scummer；
（3）Going deimpurity paper pulp to be classified into chopped fiber, long fibre into fractionating screen, and by gained chopped fiber,
Long stuff is delivered to the first mill respectively, the second mill carries out mashing processing, respectively obtains fluff pulp, long fine slurry；
（4）Fluff pulp, long fine slurry are respectively delivered to short fine pond, long fine pond deposit uses；
（5）Respectively toward adding step in long fine pond, short fine pond（1）Obtained solid, reinforcing agent, sizing agent, is first warming up to
80 DEG C are handled 80 minutes, then are cooled to 42-48 DEG C and are handled 50 minutes, are continuously heating to 58 DEG C and are handled 20 minutes, are finally cooled to
Room temperature；
（6）Will be through step（5）Fluff pulp, long fine de-watering of slurries to moisture after processing are 50%, then pass through composite roll
Working process synthesizes paper；
（7）By step（6）Gained paper is dried, and produces boxboard.
Wherein, step（5）In：Bonding agent is neopelex, N- sulfonylmethyls sodium taurocholate, para hydroxybenzene first
Isopropyl propionate, mass ratio 1:0.8:1.4, bonding agent addition is 9kg/t；Reinforcing agent is polyethyleneimine, carboxymethyl cellulose
Element, modified starch, mass ratio 1:0.9:0.5, addition 22kg/t；Sizing agent is oxidized starch, polyvinyl alcohol, acetic acid
Ethylene maleic acid anhydride copolymer, mass ratio 1:1.3:0.6, addition 5kg/t.
The measure of physical index：
（1）Tensile strength：Under conditions of Standard test method defined, institute's energy before the paper of unit width and cardboard brisement
The maximum tension stress born, is represented with N/m.
Tensile index：Tensile strength divided by quantitative, unit Nm/g.Assay method is referring to GB/T 453-1983.
(2) ring crush intensity：The ring crush intensity of cardboard is under certain condition, to can bear before compression sample to conquassation
Maximum pressure, its value R=F/152, F are actual readings, and unit N, R are ring crush intensities, and unit is represented with KN/m.
Ring crush index：Represented with Ih, Rx=1000R/W, unit Nm/g.Specific assay method is referring to GB/T2679.3-
1995。
(3) bursting strength：Refer to the uniform maximum pressure that paper and cardboard can bear in unit area, unit K Pa.
Burst index：Bursting strength divided by Substance, unit K Pam2/ g, specific assay method is referring to GB/T454-
1989。
As a result it is as shown in table 1.
As can be seen from Table 1, boxboard produced by the present invention（Embodiment 1-3）Anti-tensile, resistance to compression, damage resistibility can be all
Preferably, hence it is evident that better than comparative example 1（Outside process parameters range）, comparative example 2（It is not added with the waste plastic by pretreatment）, it is right
Ratio 3（It is not added with bonding agent）, especially with the best results of embodiment 2, it is seen that the present invention with the addition of by the useless of pretreatment
Plastics are abandoned, waste plastic and are combined together by bonding agent, using the handling process of heating-cooling-heating-cooling, system
The boxboard obtained improves anti-tensile, resistance to compression, damage resistibility energy, and effect is preferable.
Claims (4)
1. a kind of preparation method of boxboard, it is characterized in that：Comprise the following steps：
（1）Waste plastic is crushed, 100 mesh sieves are crossed, by solid-to-liquid ratio 1g:14-16ml is added into paraxylene, is heated to 60-
70 DEG C, make its dissolving, solvent removed by evaporation at reduced pressure, dry, it is standby to obtain solid；
（2）Waste paper is placed in pulper and crushes that to resolve into mass concentration be 4-6% paper pulp, paper pulp is successively delivered to pressurized screen with
Scummer goes the removal of impurity；
（3）Going deimpurity paper pulp to be classified into chopped fiber and long fibre into fractionating screen, and by gained chopped fiber and length
Fibre stuff is delivered to the first mill respectively, the second mill carries out mashing processing, respectively obtains fluff pulp and long fine slurry；
（4）Fluff pulp and long fine slurry are respectively delivered to short fine pond and long fine pond deposit uses；
（5）Respectively toward adding step in long fine pond and short fine pond（1）Obtained solid, bonding agent, reinforcing agent and sizing agent, solid
Addition be 13-17kg/t, be first warming up to 75-85 DEG C of processing 60-100 minute, then be cooled to 42-48 DEG C of processing 40-60 point
Clock, 55-60 DEG C of processing 15-25 minute is continuously heating to, is finally cooled to room temperature；
（6）Will be through step（5）Fluff pulp and long fine de-watering of slurries to moisture after processing are 45-55%, then pass through composite roll
Working process synthesizes paper；
（7）By step（6）Gained paper is dried, and produces boxboard.
2. a kind of preparation method of boxboard as claimed in claim 1, it is characterized in that：Step（5）In：Bonding agent is dodecane
Base benzene sulfonic acid sodium salt, N- sulfonylmethyls sodium taurocholate and p-Hydroxybenzoic acid isopropyl ester, mass ratio 1:0.7-0.9:1.3-1.5
Bonding agent addition is 8-10kg/t.
3. a kind of preparation method of boxboard as claimed in claim 1, it is characterized in that：Step（5）In：Reinforcing agent is polyethylene
Imines, carboxymethyl cellulose and modified starch, mass ratio 1:0.8-1.0:0.4-0.6, addition 20-25kg/t.
4. a kind of preparation method of boxboard as claimed in claim 1, it is characterized in that：Step（5）In：Sizing agent forms sediment for oxidation
Powder, polyvinyl alcohol and vinyl acetate-maleic anhydride copolymer, mass ratio 1:1.2-1.4:0.5-0.7, addition 4-6kg/
t。
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| CN201610741687.3A CN106245410B (en) | 2016-08-29 | 2016-08-29 | A kind of boxboard and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1706634A (en) * | 2005-04-14 | 2005-12-14 | 浙江东经包装有限公司 | Composite paper-plastic board and its production process |
| CN101879791A (en) * | 2009-05-07 | 2010-11-10 | 任立群 | Method for manufacturing paper water pipe |
| CN105735023A (en) * | 2016-02-18 | 2016-07-06 | 江苏理文造纸有限公司 | Method for improving cardboard paper printing adaptability |
-
2016
- 2016-08-29 CN CN201610741687.3A patent/CN106245410B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1706634A (en) * | 2005-04-14 | 2005-12-14 | 浙江东经包装有限公司 | Composite paper-plastic board and its production process |
| CN101879791A (en) * | 2009-05-07 | 2010-11-10 | 任立群 | Method for manufacturing paper water pipe |
| CN105735023A (en) * | 2016-02-18 | 2016-07-06 | 江苏理文造纸有限公司 | Method for improving cardboard paper printing adaptability |
Non-Patent Citations (1)
| Title |
|---|
| 废旧塑料在复合材料领域中回用技术的研究进展;张效林等;《材料导报A：综述篇》;20110831;第25卷(第8期);第92-94页 * |
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Denomination of invention: A box board paper and its preparation method Effective date of registration: 20230904 Granted publication date: 20171226 Pledgee: Ganzhou Bank Co.,Ltd. Guangfeng Branch Pledgor: Jiangxi Lulin Paper Co.,Ltd. Registration number: Y2023980055159 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |