CN110820412A - Formula and preparation method of high-strength ivory board - Google Patents
Formula and preparation method of high-strength ivory board Download PDFInfo
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- CN110820412A CN110820412A CN201910994707.1A CN201910994707A CN110820412A CN 110820412 A CN110820412 A CN 110820412A CN 201910994707 A CN201910994707 A CN 201910994707A CN 110820412 A CN110820412 A CN 110820412A
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- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/08—Mechanical or thermomechanical pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/30—Disc mills
- D21D1/303—Double disc mills
-
- 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
- D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
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- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/17—Ketenes, e.g. ketene dimers
-
- 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
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- 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
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
- D21H17/74—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic and inorganic material
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
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- Wood Science & Technology (AREA)
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Abstract
The invention discloses a high-strength ivory board formula and a preparation method thereof, wherein the high-strength ivory board formula comprises the following components, by mass, 30-40% of needles and leaves, 60-70% of broad leaves, 1.2-2.0% of starch, 1.0-2.0% of dry strength agent, 1.0-1.5% of whitening agent, 0.1-0.15% of retention aid, 1.0-1.5% of AKD, dye, surface glue and surface reinforcing agent, and the preparation method specifically comprises the following steps: the method comprises the following steps: preparing softwood pulp; step two: preparing broad-leaved wood pulp; step three: inputting the 1# or 2# beaten-off tank into a mixing tank, adding a whitening agent, a dye, starch and a dry strength agent into the mixing tank, uniformly mixing and stirring, inputting into a pulping tank, and finally conveying into a pre-pulping tank; step four: and carrying out papermaking flow treatment. The invention has the technical effects of higher folding strength, tensile strength, tearing strength, bursting strength and whiteness.
Description
Technical Field
The invention relates to the technical field of white cardboard formula and preparation, in particular to a high-strength white cardboard formula and a preparation method thereof.
Background
The white cardboard is made by multi-roll press polishing, the paper surface has high color quality purity, more uniform ink absorption and better folding endurance, the white cardboard made of thick, solid, strong and high-quality wood pulp is subjected to press polishing or embossing treatment, is mainly used for printing stock for packaging decoration, is divided into A, B, C grades, and is mainly used for printing business cards, invitation cards, certificates, trademarks, packaging decoration, commodity packaging boxes, commodity surface linings, picture hanging pictures and the like. Therefore, the white cardboard is required to have high physical strength such as folding strength, tensile strength, tearing strength, and bursting strength, and high whiteness.
Therefore, the invention provides a formula and a preparation method of the high-strength ivory board which has higher physical strength such as folding strength, tensile strength, tearing strength, bursting strength and the like and better and more stable whiteness, and is very necessary.
Disclosure of Invention
The invention aims to provide a formula and a preparation method of a high-strength ivory board so as to achieve the technical effects provided by the background technology.
In order to realize the purpose, the invention provides the following technical scheme: a high-strength ivory board formula and a preparation method thereof comprise 30-40% of needles and leaves, 60-70% of broad leaves, 1.2-2.0% of starch, 1.0-2.0% of dry strength agent, 1.0-1.5% of whitening agent, 0.1-0.15% of retention aid, 1.0-1.5% of AKD, dye, surface gum and surface reinforcing agent in percentage by mass, and the preparation method specifically comprises the following steps:
the method comprises the following steps: preparing softwood pulp: carrying out pulp breaking treatment on the needle blades by using a hydraulic pulp breaking machine, placing pulp subjected to the pulp breaking treatment in a pulp pool, then carrying out pulp grinding treatment by using a double-disc pulp grinder, wherein the pulp degree is 42-450 DEG SR, the wet weight is 10-12 g, and knocking in a back pool # 1;
step two: preparing hardwood pulp: carrying out pulp breaking treatment on broad leaves by adopting a hydraulic pulp breaker, placing pulp subjected to the pulp breaking treatment in a pulp pool, then carrying out pulp grinding treatment by adopting a double-disc pulp grinder, wherein the pulp degree is 42-450 DEG SR, the wet weight is 1.6-2.1 g, and the pulp is beaten in a back pool No. 2;
step three: inputting the 1# or 2# beaten-off tank into a mixing tank, adding a whitening agent, a dye, starch and a dry strength agent into the mixing tank, uniformly mixing and stirring, inputting into a pulping tank, and finally conveying into a pre-pulping tank;
step four: carrying out papermaking flow treatment: conveying the pulp in the pre-papermaking pool in the third step to a high-level box, and uniformly mixing the pulp and white water; then, the slurry is conveyed into a slurry flushing tank, AKD is added into the slurry flushing tank, the mixture is uniformly mixed and then conveyed into a desander for primary or secondary desanding through a net part pH value control system; then conveying the mixture into a pressure screen, adding a retention aid into the pressure screen, uniformly mixing, and conveying the mixture into a pre-net box; then, carrying out vacuum pressing treatment by a fourdrinier machine to form a white cardboard, then carrying out secondary pressing treatment on the white cardboard, then carrying out reverse pressing treatment on the white cardboard, then conveying the white cardboard into a group of drying cylinders to carry out drying treatment, then conveying the white cardboard into two groups of drying cylinders to carry out drying treatment, then conveying the white cardboard to a surface sizing machine to coat surface glue and a surface reinforcing agent on the white cardboard, then conveying the coated white cardboard into three groups of drying cylinders to carry out drying treatment, then conveying the white cardboard into a soft calender to be treated, then conveying the white cardboard into a quantitative and moisture online detection control system to be treated, and then conveying the white cardboard to a winder and a rewinder to be rolled into the white cardboard.
Preferably, the pulping mode in the step one adopts a semi-free and semi-sticky pulping mode, and 4 double-disc pulping machines are adopted for pulping in series.
Preferably, the pulping mode in the step two adopts a sticky pulping mode, and 4 double-disc pulping machines are adopted for pulping in series.
Preferably, the surface of the vacuum pressing treatment in the fourth step is coated with a stainless steel net to ensure that the dehydration rate is proper.
Preferably, the surface adhesive in the fourth step is used at 75 kg of starch per pot, and the surface reinforcing agent is used at 15 kg of starch per pot.
Preferably, in the fourth step, the pH value of the slurry is controlled to be between 7.0 and 8.0 by the pH value control system of the net part.
Preferably, the AKD is an alkyl ketene dimer internal sizing agent, and the solid content is 12-18%.
Preferably, the dry strength agent is modified ionic starch or modified anionic starch or anionic polyacrylamide or a mixture of modified anionic starch and anionic polyacrylamide.
Preferably, the whitening agent is one or more of stilbene derivatives, phenylpyrazoline derivatives, benzimidazole derivatives, phenylpyrazole derivatives, coumarin derivatives and naphthalimide derivatives.
Preferably, the retention aid is mainly high polymer, and is added with one or more of alum, polyaluminium chloride and a fixing agent to be mixed; the fixative is one or more of polyamine, polydiallyldimethylammonium chloride and polyethyleneimine.
Compared with the prior art, the invention has the beneficial effects that:
1. the formula and the preparation method of the high-strength ivory board are characterized in that softwood pulp is prepared: carrying out pulp breaking treatment on the needle blades by using a hydraulic pulp breaking machine, placing pulp subjected to the pulp breaking treatment in a pulp pool, then carrying out pulp grinding treatment by using a double-disc pulp grinder, wherein the pulp degree is 42-450 DEG SR, the wet weight is 10-12 g, and knocking in a back pool # 1; preparing hardwood pulp: carrying out pulp breaking treatment on broad leaves by adopting a hydraulic pulp breaker, placing pulp subjected to the pulp breaking treatment in a pulp pool, then carrying out pulp grinding treatment by adopting a double-disc pulp grinder, wherein the pulp degree is 42-450 DEG SR, the wet weight is 1.6-2.1 g, and the pulp is beaten in a back pool No. 2; the pulping mode of the softwood pulp adopts a semi-free semi-sticky pulping mode, 4 double-disc pulping machines are adopted for pulping in series, the pulping mode of the hardwood pulp adopts a sticky pulping mode, and 4 double-disc pulping machines are adopted for pulping in series, so that the pulp degree of the softwood pulp and the hardwood pulp is ensured, and the physical properties such as folding resistance, tensile force, tearing strength, breakage resistance and the like of the white cardboard are ensured.
2. According to the formula and the preparation method of the high-strength ivory board, AKD is added into a size washing tank, uniformly mixed, passed through a mesh part pH value control system, and then conveyed into a desander for primary or secondary desanding; then conveying the mixture into a pressure screen, adding a retention aid into the pressure screen, uniformly mixing, and conveying the mixture into a pre-net box; and then carrying out vacuum pressing treatment through a fourdrinier machine to form the white cardboard, and strictly controlling the pH value to be 7.0-8.0 by using an online detection and pH value adjusting system. The pulp is ensured to be dewatered on the net uniformly and has good evenness, and the physical properties of the white cardboard such as folding resistance, tensile force, tearing strength, bursting strength and the like are improved.
3. According to the formula and the preparation method of the high-strength white cardboard, the white cardboard is conveyed to a surface sizing applicator to be coated with surface glue and a surface reinforcing agent, then the coated white cardboard is conveyed to three groups of drying cylinders to be dried, and then the white cardboard is conveyed to a soft calender to be treated, wherein the consumption of the surface glue is 75 kg of starch per pot, the consumption of the surface reinforcing agent is 15 kg of starch per pot, and the physical properties of the white cardboard such as folding strength, tensile force, tearing strength and bursting strength are improved.
4. According to the formula and the preparation method of the high-strength ivory board, the No. 1 or No. 2 after being knocked is input into the batching pool, the whitening agent, the dye, the starch and the dry strength agent are added into the batching pool, mixed and stirred uniformly, then input into the pulping pool, and finally conveyed into the pre-pulping pool, so that the whiteness of the ivory board is improved, and the ivory board is better and more stable.
Drawings
FIG. 1 is a table diagram of experimental data in an example of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A high-strength ivory board formula and a preparation method thereof comprise 30% of needles and leaves, 60% of broad leaves, 1.2% of starch, 1.0% of dry strength agent, 1.0% of whitening agent, 0.1% of retention aid, 1.0% of AKD, dye, surface gum and surface reinforcing agent in percentage by mass, and the preparation method specifically comprises the following steps:
the method comprises the following steps: preparing softwood pulp: breaking the blades by a hydraulic pulp breaking machine, placing pulp subjected to the pulp breaking treatment in a pulp pool, then performing pulping treatment by a double-disc pulping machine, wherein the pulp degree is 42 DEG SR, the wet weight is 10g, and knocking the blades in the pool 1 #;
step two: preparing hardwood pulp: breaking the broad leaves by a hydraulic pulp breaker, placing pulp subjected to the breaking treatment in a pulp pool, then performing pulping treatment by a double-disc pulping machine, wherein the pulp degree is 42 DEG SR, the wet weight is 1.6g, and the pulp is beaten in a pool No. 2;
step three: inputting the 1# or 2# beaten-off tank into a mixing tank, adding a whitening agent, a dye, starch and a dry strength agent into the mixing tank, uniformly mixing and stirring, inputting into a pulping tank, and finally conveying into a pre-pulping tank;
step four: carrying out papermaking flow treatment: conveying the pulp in the pre-papermaking pool in the third step to a high-level box, and uniformly mixing the pulp and white water; then, the slurry is conveyed into a slurry flushing tank, AKD is added into the slurry flushing tank, the mixture is uniformly mixed and then conveyed into a desander for primary or secondary desanding through a net part pH value control system; then conveying the mixture into a pressure screen, adding a retention aid into the pressure screen, uniformly mixing, and conveying the mixture into a pre-net box; then, carrying out vacuum pressing treatment by a fourdrinier machine to form a white cardboard, then carrying out secondary pressing treatment on the white cardboard, then carrying out reverse pressing treatment on the white cardboard, then conveying the white cardboard into a group of drying cylinders to carry out drying treatment, then conveying the white cardboard into two groups of drying cylinders to carry out drying treatment, then conveying the white cardboard to a surface sizing machine to coat surface glue and a surface reinforcing agent on the white cardboard, then conveying the coated white cardboard into three groups of drying cylinders to carry out drying treatment, then conveying the white cardboard into a soft calender to be treated, then conveying the white cardboard into a quantitative and moisture online detection control system to be treated, and then conveying the white cardboard to a winder and a rewinder to be rolled into the white cardboard.
In this embodiment, the pulping mode in the first step is a semi-free and semi-sticky pulping mode, and 4 double-disc pulping machines are used for pulping in series.
In this embodiment, the pulp refining mode in the second step is a sticky pulping mode, and 4 double-disc pulp refiners are used for refining pulp in series.
In this embodiment, the surface of the vacuum press treatment in step four is coated with a stainless steel mesh to ensure a proper dehydration rate.
In this example, the consumption of the surface adhesive in the fourth step was 75 kg of starch per pot, and the consumption of the surface reinforcing agent was 15 kg of starch per pot.
In this embodiment, in the fourth step, the PH value of the slurry is controlled to be 7.0-8.0 by the PH value control system of the net part.
In the embodiment, the AKD is an alkyl ketene dimer internal sizing agent, and the solid content is 12-18%.
In this embodiment, the dry strength agent is modified ionic starch or modified anionic starch or anionic polyacrylamide or a mixture of modified anionic starch and anionic polyacrylamide.
In this embodiment, the whitening agent is one or more of stilbene derivatives, phenylpyrazoline derivatives, benzimidazole derivatives, phenylpyrazole derivatives, coumarin derivatives, and naphthalimide derivatives.
In the embodiment, the retention aid is mainly high polymer, and is added with one or more of alum, polyaluminium chloride and a fixing agent to be mixed; the fixative is one or more of polyamine, polydiallyldimethylammonium chloride and polyethyleneimine.
Example 2
A high-strength ivory board formula and a preparation method thereof comprise 40% of needles and leaves, 70% of broad leaves, 2.0% of starch, 2.0% of dry strength agent, 1.5% of whitening agent, 0.15% of retention aid, 1.5% of AKD, dye, surface gum and surface reinforcing agent in percentage by mass, and the preparation method specifically comprises the following steps:
the method comprises the following steps: preparing softwood pulp: breaking the needle blades by using a hydraulic pulp breaking machine, placing pulp subjected to pulp breaking treatment in a pulp pool, then performing pulping treatment by using a double-disc pulping machine, wherein the pulp degree is 450-degree SR, the wet weight is 12g, and knocking in a back pool # 1;
step two: preparing hardwood pulp: breaking the broad leaves by a hydraulic pulp breaker, placing pulp subjected to the breaking treatment in a pulp pool, then performing pulping treatment by a double-disc pulping machine, wherein the pulp degree is 450 DEG SR, the wet weight is 2.1g, and the pulp is beaten in a pool 2 #;
step three: inputting the 1# or 2# beaten-off tank into a mixing tank, adding a whitening agent, a dye, starch and a dry strength agent into the mixing tank, uniformly mixing and stirring, inputting into a pulping tank, and finally conveying into a pre-pulping tank;
step four: carrying out papermaking flow treatment: conveying the pulp in the pre-papermaking pool in the third step to a high-level box, and uniformly mixing the pulp and white water; then, the slurry is conveyed into a slurry flushing tank, AKD is added into the slurry flushing tank, the mixture is uniformly mixed and then conveyed into a desander for primary or secondary desanding through a net part pH value control system; then conveying the mixture into a pressure screen, adding a retention aid into the pressure screen, uniformly mixing, and conveying the mixture into a pre-net box; then, carrying out vacuum pressing treatment by a fourdrinier machine to form a white cardboard, then carrying out secondary pressing treatment on the white cardboard, then carrying out reverse pressing treatment on the white cardboard, then conveying the white cardboard into a group of drying cylinders to carry out drying treatment, then conveying the white cardboard into two groups of drying cylinders to carry out drying treatment, then conveying the white cardboard to a surface sizing machine to coat surface glue and a surface reinforcing agent on the white cardboard, then conveying the coated white cardboard into three groups of drying cylinders to carry out drying treatment, then conveying the white cardboard into a soft calender to be treated, then conveying the white cardboard into a quantitative and moisture online detection control system to be treated, and then conveying the white cardboard to a winder and a rewinder to be rolled into the white cardboard.
In this embodiment, the pulping mode in the first step is a semi-free and semi-sticky pulping mode, and 4 double-disc pulping machines are used for pulping in series.
In this embodiment, the pulp refining mode in the second step is a sticky pulping mode, and 4 double-disc pulp refiners are used for refining pulp in series.
In this embodiment, the surface of the vacuum press treatment in step four is coated with a stainless steel mesh to ensure a proper dehydration rate.
In this example, the consumption of the surface adhesive in the fourth step was 75 kg of starch per pot, and the consumption of the surface reinforcing agent was 15 kg of starch per pot.
In this embodiment, in the fourth step, the PH value of the slurry is controlled to be 7.0-8.0 by the PH value control system of the net part.
In the embodiment, the AKD is an alkyl ketene dimer internal sizing agent, and the solid content is 12-18%.
In this embodiment, the dry strength agent is modified ionic starch or modified anionic starch or anionic polyacrylamide or a mixture of modified anionic starch and anionic polyacrylamide.
In this embodiment, the whitening agent is one or more of stilbene derivatives, phenylpyrazoline derivatives, benzimidazole derivatives, phenylpyrazole derivatives, coumarin derivatives, and naphthalimide derivatives.
In the embodiment, the retention aid is mainly high polymer, and is added with one or more of alum, polyaluminium chloride and a fixing agent to be mixed; the fixative is one or more of polyamine, polydiallyldimethylammonium chloride and polyethyleneimine.
Example 3
A high-strength ivory board formula and a preparation method thereof comprise 35% of needles and leaves, 65% of broad leaves, 1.6% of starch, 1.5% of dry strength agent, 1.25% of whitening agent, 0.125% of retention aid, 1.25% of AKD, dye, surface gum and surface reinforcing agent in percentage by mass, and the preparation method specifically comprises the following steps:
the method comprises the following steps: preparing softwood pulp: breaking the needle blades by a hydraulic pulp breaking machine, placing pulp subjected to pulp breaking treatment in a pulp pool, then performing pulping treatment by a double-disc pulping machine, wherein the pulp degree is 246-degree SR, the wet weight is 11g, and the pulp is tapped in a tank No. 1;
step two: preparing hardwood pulp: breaking the broad leaves by a hydraulic pulp breaker, placing pulp subjected to the breaking treatment in a pulp pool, then performing pulping treatment by a double-disc pulping machine, wherein the pulp degree is 246-degree SR, the wet weight is 1.85g, and the pulp is beaten in a pool No. 2;
step three: inputting the 1# or 2# beaten-off tank into a mixing tank, adding a whitening agent, a dye, starch and a dry strength agent into the mixing tank, uniformly mixing and stirring, inputting into a pulping tank, and finally conveying into a pre-pulping tank;
step four: carrying out papermaking flow treatment: conveying the pulp in the pre-papermaking pool in the third step to a high-level box, and uniformly mixing the pulp and white water; then, the slurry is conveyed into a slurry flushing tank, AKD is added into the slurry flushing tank, the mixture is uniformly mixed and then conveyed into a desander for primary or secondary desanding through a net part pH value control system; then conveying the mixture into a pressure screen, adding a retention aid into the pressure screen, uniformly mixing, and conveying the mixture into a pre-net box; then, carrying out vacuum pressing treatment by a fourdrinier machine to form a white cardboard, then carrying out secondary pressing treatment on the white cardboard, then carrying out reverse pressing treatment on the white cardboard, then conveying the white cardboard into a group of drying cylinders to carry out drying treatment, then conveying the white cardboard into two groups of drying cylinders to carry out drying treatment, then conveying the white cardboard to a surface sizing machine to coat surface glue and a surface reinforcing agent on the white cardboard, then conveying the coated white cardboard into three groups of drying cylinders to carry out drying treatment, then conveying the white cardboard into a soft calender to be treated, then conveying the white cardboard into a quantitative and moisture online detection control system to be treated, and then conveying the white cardboard to a winder and a rewinder to be rolled into the white cardboard.
In this embodiment, the pulping mode in the first step is a semi-free and semi-sticky pulping mode, and 4 double-disc pulping machines are used for pulping in series.
In this embodiment, the pulp refining mode in the second step is a sticky pulping mode, and 4 double-disc pulp refiners are used for refining pulp in series.
In this embodiment, the surface of the vacuum press treatment in step four is coated with a stainless steel mesh to ensure a proper dehydration rate.
In this example, the consumption of the surface adhesive in the fourth step was 75 kg of starch per pot, and the consumption of the surface reinforcing agent was 15 kg of starch per pot.
In this embodiment, in the fourth step, the PH value of the slurry is controlled to be 7.0-8.0 by the PH value control system of the net part.
In the embodiment, the AKD is an alkyl ketene dimer internal sizing agent, and the solid content is 12-18%.
In this embodiment, the dry strength agent is modified ionic starch or modified anionic starch or anionic polyacrylamide or a mixture of modified anionic starch and anionic polyacrylamide.
In this embodiment, the whitening agent is one or more of stilbene derivatives, phenylpyrazoline derivatives, benzimidazole derivatives, phenylpyrazole derivatives, coumarin derivatives, and naphthalimide derivatives.
In the embodiment, the retention aid is mainly high polymer, and is added with one or more of alum, polyaluminium chloride and a fixing agent to be mixed; the fixative is one or more of polyamine, polydiallyldimethylammonium chloride and polyethyleneimine.
And (3) experimental detection: the white cardboard prepared in example 1, example 2 and example 3 and the white cardboard in the prior art are respectively subjected to folding strength, tensile strength, tearing strength, bursting strength and whiteness detection experiments, and specific experimental data are shown in a table in fig. 1;
and (3) analyzing an experimental result: the folding strength, the tensile strength, the tearing strength, the bursting strength and the whiteness of the white cardboard prepared in the embodiment 1, the embodiment 2 and the embodiment 3 are equivalent, and are obviously higher than the white cardboard in the prior art.
The invention has the beneficial effects that: the formula and the preparation method of the high-strength ivory board are characterized in that softwood pulp is prepared: carrying out pulp breaking treatment on the needle blades by using a hydraulic pulp breaking machine, placing pulp subjected to the pulp breaking treatment in a pulp pool, then carrying out pulp grinding treatment by using a double-disc pulp grinder, wherein the pulp degree is 42-450 DEG SR, the wet weight is 10-12 g, and knocking in a back pool # 1; preparing hardwood pulp: carrying out pulp breaking treatment on broad leaves by adopting a hydraulic pulp breaker, placing pulp subjected to the pulp breaking treatment in a pulp pool, then carrying out pulp grinding treatment by adopting a double-disc pulp grinder, wherein the pulp degree is 42-450 DEG SR, the wet weight is 1.6-2.1 g, and the pulp is beaten in a back pool No. 2; the pulping mode of the softwood pulp adopts a semi-free semi-sticky pulping mode, 4 double-disc pulping machines are adopted for pulping in series, the pulping mode of the hardwood pulp adopts a sticky pulping mode, and 4 double-disc pulping machines are adopted for pulping in series, so that the pulp degree of the softwood pulp and the hardwood pulp is ensured, and the physical properties such as folding resistance, tensile force, tearing strength, breakage resistance and the like of the white cardboard are ensured. According to the formula and the preparation method of the high-strength ivory board, AKD is added into a size washing tank, uniformly mixed, passed through a mesh part pH value control system, and then conveyed into a desander for primary or secondary desanding; then conveying the mixture into a pressure screen, adding a retention aid into the pressure screen, uniformly mixing, and conveying the mixture into a pre-net box; and then carrying out vacuum pressing treatment through a fourdrinier machine to form the white cardboard, and strictly controlling the pH value to be 7.0-8.0 by using an online detection and pH value adjusting system. The pulp is ensured to be dewatered on the net uniformly and has good evenness, and the physical properties of the white cardboard such as folding resistance, tensile force, tearing strength, bursting strength and the like are improved. According to the formula and the preparation method of the high-strength white cardboard, the white cardboard is conveyed to a surface sizing applicator to be coated with surface glue and a surface reinforcing agent, then the coated white cardboard is conveyed to three groups of drying cylinders to be dried, and then the white cardboard is conveyed to a soft calender to be treated, wherein the consumption of the surface glue is 75 kg of starch per pot, the consumption of the surface reinforcing agent is 15 kg of starch per pot, and the physical properties of the white cardboard such as folding strength, tensile force, tearing strength and bursting strength are improved. According to the formula and the preparation method of the high-strength ivory board, the No. 1 or No. 2 after being knocked is input into the batching pool, the whitening agent, the dye, the starch and the dry strength agent are added into the batching pool, mixed and stirred uniformly, then input into the pulping pool, and finally conveyed into the pre-pulping pool, so that the whiteness of the ivory board is improved, and the ivory board is better and more stable.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A high-strength ivory board formula and a preparation method thereof are characterized in that: the preparation method comprises the following components of 30-40% of needles and leaves, 60-70% of broad leaves, 1.2-2.0% of starch, 1.0-2.0% of dry strength agent, 1.0-1.5% of whitening agent, 0.1-0.15% of retention aid, 1.0-1.5% of AKD, dye, surface adhesive and surface reinforcing agent in percentage by mass, and the preparation method specifically comprises the following steps:
the method comprises the following steps: preparing softwood pulp: carrying out pulp breaking treatment on the needle blades by using a hydraulic pulp breaking machine, placing pulp subjected to the pulp breaking treatment in a pulp pool, then carrying out pulp grinding treatment by using a double-disc pulp grinder, wherein the pulp degree is 42-450 DEG SR, the wet weight is 10-12 g, and knocking in a back pool # 1;
step two: preparing hardwood pulp: carrying out pulp breaking treatment on broad leaves by adopting a hydraulic pulp breaker, placing pulp subjected to the pulp breaking treatment in a pulp pool, then carrying out pulp grinding treatment by adopting a double-disc pulp grinder, wherein the pulp degree is 42-450 DEG SR, the wet weight is 1.6-2.1 g, and the pulp is beaten in a back pool No. 2;
step three: inputting the 1# or 2# beaten-off tank into a mixing tank, adding a whitening agent, a dye, starch and a dry strength agent into the mixing tank, uniformly mixing and stirring, inputting into a pulping tank, and finally conveying into a pre-pulping tank;
step four: carrying out papermaking flow treatment: conveying the pulp in the pre-papermaking pool in the third step to a high-level box, and uniformly mixing the pulp and white water; then, the slurry is conveyed into a slurry flushing tank, AKD is added into the slurry flushing tank, the mixture is uniformly mixed and then conveyed into a desander for primary or secondary desanding through a net part pH value control system; then conveying the mixture into a pressure screen, adding a retention aid into the pressure screen, uniformly mixing, and conveying the mixture into a pre-net box; then, carrying out vacuum pressing treatment by a fourdrinier machine to form a white cardboard, then carrying out secondary pressing treatment on the white cardboard, then carrying out reverse pressing treatment on the white cardboard, then conveying the white cardboard into a group of drying cylinders to carry out drying treatment, then conveying the white cardboard into two groups of drying cylinders to carry out drying treatment, then conveying the white cardboard to a surface sizing machine to coat surface glue and a surface reinforcing agent on the white cardboard, then conveying the coated white cardboard into three groups of drying cylinders to carry out drying treatment, then conveying the white cardboard into a soft calender to be treated, then conveying the white cardboard into a quantitative and moisture online detection control system to be treated, and then conveying the white cardboard to a winder and a rewinder to be rolled into the white cardboard.
2. The formulation and preparation method of high strength ivory board according to claim 1, wherein: and (3) pulping in the first step by adopting a semi-free and semi-sticky pulping mode and pulping by adopting 4 double-disc pulping machines in series.
3. The formulation and preparation method of high strength ivory board according to claim 1, wherein: and the pulping mode in the step two adopts a sticky pulping mode, and 4 double-disc pulping machines are adopted for pulping in series.
4. The formulation and preparation method of high strength ivory board according to claim 1, wherein: and in the fourth step, a stainless steel net is coated on the surface during the vacuum pressing treatment, so that the proper dehydration rate is ensured.
5. The formulation and preparation method of high strength ivory board according to claim 1, wherein: in the fourth step, the surface adhesive comprises 75 kg of starch per pot, and the surface reinforcing agent comprises 15 kg of starch per pot.
6. The formulation and preparation method of high strength ivory board according to claim 1, wherein: and step four, the pH value of the slurry is controlled to be 7.0-8.0 by the net part pH value control system.
7. The formulation and preparation method of high strength ivory board according to claim 1, wherein: the AKD is an alkyl ketene dimer internal sizing agent, and the solid content is 12-18%.
8. The formulation and preparation method of high strength ivory board according to claim 1, wherein: the dry strength agent is modified ionic starch or modified anionic starch or anionic polyacrylamide or a mixture of the modified anionic starch and the anionic polyacrylamide.
9. The formulation and preparation method of high strength ivory board according to claim 1, wherein: the whitening agent is one or a mixture of stilbene derivatives, phenyl pyrazoline derivatives, benzimidazole derivatives, phenyl pyrazole derivatives, coumarin derivatives and naphthalimide derivatives.
10. The formulation and preparation method of high strength ivory board according to claim 1, wherein: the retention aid is mainly high polymer, and is added with one or more of alum, polyaluminium chloride and a fixing agent to be mixed; the fixative is one or more of polyamine, polydiallyldimethylammonium chloride and polyethyleneimine.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564968A (en) * | 2021-07-23 | 2021-10-29 | 上海格森纸业有限责任公司 | Production process of toothpick paper double-lug booklet for packaging toothpicks |
| CN114086413A (en) * | 2021-12-01 | 2022-02-25 | 中冶美利云产业投资股份有限公司 | Pure wood pulp high-grade color paperboard and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060065379A1 (en) * | 2004-09-29 | 2006-03-30 | Babcock Bruce W | White top paperboard |
| CN101338531A (en) * | 2008-08-07 | 2009-01-07 | 浙江永泰纸业集团股份有限公司 | Method for producing coated kraft card board by home-made paper machine |
| CN101818466A (en) * | 2010-05-31 | 2010-09-01 | 长沙田田纸业有限公司 | Double-sided composite card paper and preparation method thereof |
| CN102154927A (en) * | 2011-03-16 | 2011-08-17 | 亚太纸业（广东）有限公司 | Side offset paper and preparation method thereof |
| CN103031777A (en) * | 2012-12-31 | 2013-04-10 | 镇江大东纸业有限公司 | Making method of color card paper |
| CN105672019A (en) * | 2016-01-27 | 2016-06-15 | 新乡新亚纸业集团股份有限公司 | High-looseness thick white cardboard produced from poplar P-RC APMP and production process of high-looseness thick white cardboard |
-
2019
- 2019-10-18 CN CN201910994707.1A patent/CN110820412A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060065379A1 (en) * | 2004-09-29 | 2006-03-30 | Babcock Bruce W | White top paperboard |
| CN101338531A (en) * | 2008-08-07 | 2009-01-07 | 浙江永泰纸业集团股份有限公司 | Method for producing coated kraft card board by home-made paper machine |
| CN101818466A (en) * | 2010-05-31 | 2010-09-01 | 长沙田田纸业有限公司 | Double-sided composite card paper and preparation method thereof |
| CN102154927A (en) * | 2011-03-16 | 2011-08-17 | 亚太纸业（广东）有限公司 | Side offset paper and preparation method thereof |
| CN103031777A (en) * | 2012-12-31 | 2013-04-10 | 镇江大东纸业有限公司 | Making method of color card paper |
| CN105672019A (en) * | 2016-01-27 | 2016-06-15 | 新乡新亚纸业集团股份有限公司 | High-looseness thick white cardboard produced from poplar P-RC APMP and production process of high-looseness thick white cardboard |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113564968A (en) * | 2021-07-23 | 2021-10-29 | 上海格森纸业有限责任公司 | Production process of toothpick paper double-lug booklet for packaging toothpicks |
| CN114086413A (en) * | 2021-12-01 | 2022-02-25 | 中冶美利云产业投资股份有限公司 | Pure wood pulp high-grade color paperboard and preparation method thereof |
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