CN108611914A - A kind of preparation method for the paperboard that color fastness is high - Google Patents
A kind of preparation method for the paperboard that color fastness is high Download PDFInfo
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- CN108611914A CN108611914A CN201810209088.6A CN201810209088A CN108611914A CN 108611914 A CN108611914 A CN 108611914A CN 201810209088 A CN201810209088 A CN 201810209088A CN 108611914 A CN108611914 A CN 108611914A
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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
- 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
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; Derivatives thereof
-
- 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
- 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
- D21H21/28—Colorants ; Pigments or opacifying 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
- D21H21/34—Ignifugeants
-
- 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
- D21H21/50—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 form
- D21H21/52—Additives of definite length or shape
- D21H21/54—Additives of definite length or shape being spherical, e.g. microcapsules, beads
Abstract
The present invention relates to pulp technology for making paper, and in particular to a kind of preparation method for the paperboard that color fastness is high includes the following steps：(1) it is beaten：It is that 6 10wt% hardwood pulps distinguish beating by softwood pulp and cellulose concentration that cellulose concentration is 8 12wt%；(2) wood pulp mixes：Softwood pulp and hardwood pulp are pressed into cellulose dry weight ratio 34:13 are mixed；(3) papermaking：Internal sizing agent, direct dyes and color fixing agent is added toward the mixing wood pulp, after stirring evenly, manufactured paper with pulp successively, preceding drying, coating, rear drying, press polish, crimp trimming.The present invention rationally controls the content of cellulose of wood pulp, is conducive to infiltration of the direct dyes to cellulose；And by the mating reaction of color fixing agent and direct dyes, cellulose can be made fully to dye, the binding force of cellulose and direct dyes molecule is high, to obtain high and with certain mechanical properties the paperboard of even dyeing, color fastness.
Description
Technical field
The present invention relates to pulp technology for making paper, and in particular to a kind of preparation method for the paperboard that color fastness is high.
Background technology
Papery object of paperboard dinger thickness degree circle between paper and cardboard, it is existing colour paperboard with manufacturing technology promotion
It is applied in more extensive field, such as the packaging as commodity, substituted for plastic product are more environmentally friendly.
Existing paperboard all uses top sizing to dye substantially, or is being bonded one layer of coloured paper on paperboard surface, the former
The problem that dyeing is uneven, color fastness is low, the latter's high processing costs are be easy to cause, and the integral thickness of paperboard can be caused to increase,
Coloured paper is also easy breakage, influences beautiful and using effect.
Invention content
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of internal dyings
The high paperboard preparation method of color fastness.
The purpose of the invention is achieved by the following technical solution：
A kind of preparation method for the paperboard that color fastness is high, includes the following steps：
(1) it is beaten：It is 6-10wt% leaf woods by softwood pulp and cellulose concentration that cellulose concentration is 8-12wt%
Slurry difference beating, obtains the softwood pulp after beating and the hardwood pulp after beating；
(2) wood pulp mixes：By the softwood pulp after beating and the hardwood pulp after beating by cellulose dry weight ratio 3-4:1-3
It is mixed, obtains mixing wood pulp；
(3) papermaking：Internal sizing agent, direct dyes and color fixing agent is added toward the mixing wood pulp, after stirring evenly, successively
It is manufactured paper with pulp, preceding drying, coating, rear drying, press polish, curling trimming is to get to the high paperboard of the color fastness.
The present invention carries out the mixing of proper ratio using softwood pulp and hardwood pulp, and paperboard obtained is made to have centainly
Mechanical strength；The rationally content of cellulose of control wood pulp, is conducive to infiltration of the direct dyes to cellulose；And by color fixing agent and
The mating reaction of direct dyes can be such that cellulose fully dyes, and the binding force of cellulose and direct dyes molecule is high, directly contaminates
That expects is uniformly dispersed good, to obtain high and with certain mechanical properties the paperboard of even dyeing, color fastness.
Wherein, in the step (1) softwood pulp beating to 15-18 ° of SR, the hardwood pulp beating to 25-30 ° of SR.
Beating degree is to reflect an index of slurry synthesis drainage complexity, passes through kowtowing for Reasonable Regulation And Control softwood pulp and hardwood pulp
Xie Du can effectively reduce the disengaging of dyestuff and cellulose in paper-making process, can enhance the mechanical property of paperboard.
Wherein, the softwood pulp is larch wood pulp, and the hardwood pulp is poplar wood pulp, in the step (1), is kowtowed
The fibre length of softwood pulp after solution is 0.24-0.32mm, and the fibre length of the hardwood pulp after the beating is 0.16-
0.22mm.The length-width ratio of Larix Olgensis Fiber is big, tracheid wall thickness, and the paperboard of the present invention can be made to have higher intensity, pulling force, resistance to
Broken index is high；Aspen fibers by using silicon institutional framework is closer compared with softwood pulp, and contains more heteroproteose cell, can enhance enduring for paperboard
Degree, and it is higher to the absorptivity of direct dyes；And then pass through the fiber of larch wood pulp and poplar wood pulp after control beating
Length can effectively provide the mechanical property and color fastness of paperboard.
Wherein, the internal sizing agent by alkenyl succinic anhydride and alkyl ketene dimer by weight 1-3:1 ratio
Composition.Internal sizing agent can improve the surface strength of paperboard, prevent the diffusion and infiltration of aqueous liquids, applied by rationally controlling
The type and proportioning of jelly, suction-operated that can be with reinforcing fiber element to direct dyes molecule, to improve color fastness.
Wherein, the direct dyes is direct red dye, and in the inventive solutions, direct red dye is relatively other
Dyestuff adhesive force higher, aesthetic appearance are more preferable.
Wherein, the color fixing agent is the color fixing agent TCD-R of Guangdong Demei Fine Chemical Co., Ltd.'s production and/or clear
The color fixing agent 2070H of remote grand plan auxiliary agent Co., Ltd of city production, it is preferable that the color fixing agent by TCD-R and 2070H by weight
1-3:1 ratio composition.The color fixing agent of compounding composition is more advantageous to the adhesive force for providing direct red dye to cellulose.
Wherein, it in the step (3), is added together with internal sizing agent, direct dyes and color fixing agent in mixing wood pulp
Further include fire-retardant master granule, the fire-retardant master granule is the microballoon of nucleocapsid, and the core of fire-retardant master granule is nanometer red phosphorus and nanometer hydrogen-oxygen
Change the mixture of aluminium, the shell of fire-retardant master granule is microcrystalline cellulose.
The present invention can make the paperboard of the present invention have certain fire retardation, and red phosphorus by the way that fire-retardant master granule is added
Appearance and the present invention direct red dye bring out the best in each other, can be with the stereovision of rich colors.Fire-retardant master granule of the present invention
Mechanism is：Nanometer red phosphorus high temperature degradation forms white phosphorus, and aluminium hydroxide decomposes the combination water discharged and forms oxygen-containing phosphoric acid, promotes
The cellulose of microcrystalline cellulose and paper carbonizes to form interlayer, to play fire-retardant effect.The present invention utilizes microcrystalline cellulose packet
The benefit for covering nanometer red phosphorus also resides in：Microcrystalline cellulose and the cellulose associativity in wood pulp are good, can to avoid nanometer red phosphorus with
The problem of wood pulp directly mixes dispersion unevenness or easily reunites.
Wherein, the preparation method of the fire-retardant master granule includes the following steps：
A, at a temperature of 70-90 DEG C, by microcrystalline cellulose 4-10 in mass ratio:100 are dissolved in ionic liquid, are formed micro-
Crystalline cellulose solution；
B, nanometer red phosphorus and nano-aluminum hydroxide are added into the microcrystalline cellulose solution that step A is obtained, after stirring evenly,
Obtain suspension, the dosage of the nanometer red phosphorus and nano-aluminum hydroxide is respectively the 3-6wt% and 2-4wt% of suspension；
C, the suspension obtained step B carries out electrostatic spray to get to the fire-retardant master granule.
The present invention utilizes microcrystalline cellulose regeneration principle, can make nanometer red phosphorus and nano-aluminum hydroxide is evenly dispersed and quilt
Regenerated micron grade microcrystalline cellulose cladding makes the fire-retardant master granule of the present invention have both nano material and the size effect of micro materials
It answers, and good with wood pulp cellulose compatibility, is easily dispersed.
Wherein, the grain size of the nanometer red phosphorus is 60-80nm, and the grain size of the nano-aluminum hydroxide is 20-40nm.Pass through
The rationally grain size of control nanometer red phosphorus and nano-aluminum hydroxide, can make both even mixing, and be easy to by microcrystalline cellulose
Cladding.
Wherein, in the step C, the spray voltage of electrostatic spray is 20-40kV, and vapo(u)rizing temperature is 20-30 DEG C.Pass through conjunction
Reason control spray voltage and vapo(u)rizing temperature, can effectively control the morphology and size of fire-retardant master granule, and it is 23-47 μm to obtain grain size
Fire-retardant master granule, the good dispersion in wood pulp.
The beneficial effects of the present invention are：The present invention carries out the mixing of proper ratio using softwood pulp and hardwood pulp,
Make paperboard obtained that there is certain mechanical strength；The rationally content of cellulose of control wood pulp, is conducive to direct dyes to fiber
The infiltration of element；And by the mating reaction of color fixing agent and direct dyes, cellulose can be made fully to dye, cellulose and directly dye
Expect that the binding force of molecule is high, direct dyes it is uniformly dispersed good, it is high and there is certain force to obtain even dyeing, color fastness
Learn the paperboard of performance.
Specific implementation mode
For the ease of the understanding of those skilled in the art, with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of preparation method for the paperboard that color fastness is high, includes the following steps：
(1) it is beaten：It is 8wt% hardwood pulps difference by softwood pulp and cellulose concentration that cellulose concentration is 10wt%
Beating obtains the softwood pulp after beating and the hardwood pulp after beating；
(2) wood pulp mixes：Softwood pulp after beating and the hardwood pulp after beating are pressed into cellulose dry weight ratio 7:4 carry out
Mixing obtains mixing wood pulp；
(3) papermaking：Internal sizing agent, direct dyes and color fixing agent is added toward the mixing wood pulp, after stirring evenly, successively
It is manufactured paper with pulp, preceding drying, coating, rear drying, press polish, curling trimming is to get to the high paperboard of the color fastness.
Wherein, in the step (1) softwood pulp beating to 16.5 ° of SR, the hardwood pulp beating to 27.5 ° of SR.
Wherein, the softwood pulp is larch wood pulp, and the hardwood pulp is poplar wood pulp, in the step (1), is kowtowed
The fibre length of softwood pulp after solution is 0.28mm, and the fibre length of the hardwood pulp after the beating is 0.19mm.
Wherein, the internal sizing agent is by alkenyl succinic anhydride and alkyl ketene dimer by weight 2:1 ratio group
At.
Wherein, the direct dyes is direct red dye.
Wherein, the color fixing agent is by TCD-R and 2070H by weight 2:1 ratio composition.
Wherein, it in the step (3), is added together with internal sizing agent, direct dyes and color fixing agent in mixing wood pulp
Further include fire-retardant master granule, the fire-retardant master granule is the microballoon of nucleocapsid, and the core of fire-retardant master granule is nanometer red phosphorus and nanometer hydrogen-oxygen
Change the mixture of aluminium, the shell of fire-retardant master granule is microcrystalline cellulose.
Wherein, the preparation method of the fire-retardant master granule includes the following steps：
A, at a temperature of 80 DEG C, by microcrystalline cellulose in mass ratio 7:100 are dissolved in ionic liquid, form microcrystalline cellulose
Plain solution；
B, nanometer red phosphorus and nano-aluminum hydroxide are added into the microcrystalline cellulose solution that step A is obtained, after stirring evenly,
Obtain suspension, the dosage of the nanometer red phosphorus and nano-aluminum hydroxide is respectively the 4.5wt% and 3wt% of suspension；
C, the suspension obtained step B carries out electrostatic spray to get to the fire-retardant master granule.
Wherein, the grain size of the nanometer red phosphorus is 70nm, and the grain size of the nano-aluminum hydroxide is 30nm.
Wherein, in the step C, the spray voltage of electrostatic spray is 30kV, and vapo(u)rizing temperature is 25 DEG C.
Embodiment 2
A kind of preparation method for the paperboard that color fastness is high, includes the following steps：
(1) it is beaten：It is 6wt% hardwood pulps difference by softwood pulp and cellulose concentration that cellulose concentration is 8wt%
Beating obtains the softwood pulp after beating and the hardwood pulp after beating；
(2) wood pulp mixes：Softwood pulp after beating and the hardwood pulp after beating are pressed into cellulose dry weight ratio 3:1 carries out
Mixing obtains mixing wood pulp；
(3) papermaking：Internal sizing agent, direct dyes and color fixing agent is added toward the mixing wood pulp, after stirring evenly, successively
It is manufactured paper with pulp, preceding drying, coating, rear drying, press polish, curling trimming is to get to the high paperboard of the color fastness.
Wherein, in the step (1) softwood pulp beating to 15 ° of SR, the hardwood pulp beating to 25 ° of SR.
Wherein, the softwood pulp is larch wood pulp, and the hardwood pulp is poplar wood pulp, in the step (1), is kowtowed
The fibre length of softwood pulp after solution is 0.24mm, and the fibre length of the hardwood pulp after the beating is 0.16mm.
Wherein, the internal sizing agent is by alkenyl succinic anhydride and alkyl ketene dimer by weight 1:1 ratio group
At.
Wherein, the direct dyes is direct red dye.
Wherein, the color fixing agent is the color fixing agent TCD-R of Guangdong Demei Fine Chemical Co., Ltd.'s production.
Wherein, it in the step (3), is added together with internal sizing agent, direct dyes and color fixing agent in mixing wood pulp
Further include fire-retardant master granule, the fire-retardant master granule is the microballoon of nucleocapsid, and the core of fire-retardant master granule is nanometer red phosphorus and nanometer hydrogen-oxygen
Change the mixture of aluminium, the shell of fire-retardant master granule is microcrystalline cellulose.
Wherein, the preparation method of the fire-retardant master granule includes the following steps：
A, at a temperature of 70 DEG C, by microcrystalline cellulose in mass ratio 4:100 are dissolved in ionic liquid, form microcrystalline cellulose
Plain solution；
B, nanometer red phosphorus and nano-aluminum hydroxide are added into the microcrystalline cellulose solution that step A is obtained, after stirring evenly,
Obtain suspension, the dosage of the nanometer red phosphorus and nano-aluminum hydroxide is respectively the 3wt% and 4wt% of suspension；
C, the suspension obtained step B carries out electrostatic spray to get to the fire-retardant master granule.
Wherein, the grain size of the nanometer red phosphorus is 60nm, and the grain size of the nano-aluminum hydroxide is 20nm.
Wherein, in the step C, the spray voltage of electrostatic spray is 20kV, and vapo(u)rizing temperature is 20 DEG C.
Embodiment 3
A kind of preparation method for the paperboard that color fastness is high, includes the following steps：
(1) it is beaten：It is 10wt% hardwood pulps point by softwood pulp and cellulose concentration that cellulose concentration is 12wt%
Other beating, obtains the softwood pulp after beating and the hardwood pulp after beating；
(2) wood pulp mixes：Softwood pulp after beating and the hardwood pulp after beating are pressed into cellulose dry weight ratio 4:3 carry out
Mixing obtains mixing wood pulp；
(3) papermaking：Internal sizing agent, direct dyes and color fixing agent is added toward the mixing wood pulp, after stirring evenly, successively
It is manufactured paper with pulp, preceding drying, coating, rear drying, press polish, curling trimming is to get to the high paperboard of the color fastness.
Wherein, in the step (1) softwood pulp beating to 18 ° of SR, the hardwood pulp beating to 30 ° of SR.
Wherein, the softwood pulp is larch wood pulp, and the hardwood pulp is poplar wood pulp, in the step (1), is kowtowed
The fibre length of softwood pulp after solution is 0.32mm, and the fibre length of the hardwood pulp after the beating is 0.22mm.
Wherein, the internal sizing agent is by alkenyl succinic anhydride and alkyl ketene dimer by weight 3:1 ratio group
At.
Wherein, the direct dyes is direct red dye.
Wherein, the color fixing agent is the color fixing agent 2070H of Qingyuan City grand plan auxiliary agent Co., Ltd production.
Wherein, it in the step (3), is added together with internal sizing agent, direct dyes and color fixing agent in mixing wood pulp
Further include fire-retardant master granule, the fire-retardant master granule is the microballoon of nucleocapsid, and the core of fire-retardant master granule is nanometer red phosphorus and nanometer hydrogen-oxygen
Change the mixture of aluminium, the shell of fire-retardant master granule is microcrystalline cellulose.
Wherein, the preparation method of the fire-retardant master granule includes the following steps：
A, at a temperature of 90 DEG C, by microcrystalline cellulose in mass ratio 10:100 are dissolved in ionic liquid, and it is fine to form crystallite
The plain solution of dimension；
B, nanometer red phosphorus and nano-aluminum hydroxide are added into the microcrystalline cellulose solution that step A is obtained, after stirring evenly,
Obtain suspension, the dosage of the nanometer red phosphorus and nano-aluminum hydroxide is respectively the 6wt% and 4wt% of suspension；
C, the suspension obtained step B carries out electrostatic spray to get to the fire-retardant master granule.
Wherein, the grain size of the nanometer red phosphorus is 80nm, and the grain size of the nano-aluminum hydroxide is 40nm.
Wherein, in the step C, the spray voltage of electrostatic spray is 240kV, and vapo(u)rizing temperature is 30 DEG C.
Embodiment 4
A kind of preparation method for the paperboard that color fastness is high, includes the following steps：
(1) it is beaten：It is 8wt% hardwood pulps difference by softwood pulp and cellulose concentration that cellulose concentration is 10wt%
Beating obtains the softwood pulp after beating and the hardwood pulp after beating；
(2) wood pulp mixes：Softwood pulp after beating and the hardwood pulp after beating are pressed into cellulose dry weight ratio 7:4 carry out
Mixing obtains mixing wood pulp；
(3) papermaking：Internal sizing agent, direct dyes and color fixing agent is added toward the mixing wood pulp, after stirring evenly, successively
It is manufactured paper with pulp, preceding drying, coating, rear drying, press polish, curling trimming is to get to the high paperboard of the color fastness.
Wherein, in the step (1) softwood pulp beating to 16.5 ° of SR, the hardwood pulp beating to 27.5 ° of SR.
Wherein, the softwood pulp is larch wood pulp, and the hardwood pulp is poplar wood pulp, in the step (1), is kowtowed
The fibre length of softwood pulp after solution is 0.28mm, and the fibre length of the hardwood pulp after the beating is 0.19mm.
Wherein, the internal sizing agent is by alkenyl succinic anhydride and alkyl ketene dimer by weight 2:1 ratio group
At.
Wherein, the direct dyes is directly blue dyestuff.
Wherein, the color fixing agent is by TCD-R and 2070H by weight 2:1 ratio composition.
Embodiment 5
A kind of preparation method for the paperboard that color fastness is high, includes the following steps：
(1) it is beaten：It is 8wt% hardwood pulps difference by softwood pulp and cellulose concentration that cellulose concentration is 10wt%
Beating obtains the softwood pulp after beating and the hardwood pulp after beating；
(2) wood pulp mixes：Softwood pulp after beating and the hardwood pulp after beating are pressed into cellulose dry weight ratio 7:4 carry out
Mixing obtains mixing wood pulp；
(3) papermaking：Internal sizing agent, direct dyes and color fixing agent is added toward the mixing wood pulp, after stirring evenly, successively
It is manufactured paper with pulp, preceding drying, coating, rear drying, press polish, curling trimming is to get to the high paperboard of the color fastness.
Wherein, in the step (1) softwood pulp beating to 16.5 ° of SR, the hardwood pulp beating to 27.5 ° of SR.
Wherein, the softwood pulp is larch wood pulp, and the hardwood pulp is poplar wood pulp, in the step (1), is kowtowed
The fibre length of softwood pulp after solution is 0.28mm, and the fibre length of the hardwood pulp after the beating is 0.19mm.
Wherein, the internal sizing agent is by alkenyl succinic anhydride and alkyl ketene dimer by weight 2:1 ratio group
At.
Wherein, the direct dyes is direct yellow dye.
Wherein, the color fixing agent is by TCD-R and 2070H by weight 2:1 ratio composition.
Comparative example 1
A kind of preparation method of paperboard, includes the following steps：
(1) it is beaten：It is 8wt% hardwood pulps difference by softwood pulp and cellulose concentration that cellulose concentration is 10wt%
Beating obtains the softwood pulp after beating and the hardwood pulp after beating；
(2) wood pulp mixes：Softwood pulp after beating and the hardwood pulp after beating are pressed into cellulose dry weight ratio 7:4 carry out
Mixing obtains mixing wood pulp；
(3) papermaking：Internal sizing agent, direct dyes, fire retardant and color fixing agent is added toward the mixing wood pulp, stirs evenly
Afterwards, it is manufactured paper with pulp successively, preceding drying, coating, rear drying, press polish, curling trimming is to get to the high paperboard of the color fastness.
Wherein, in the step (1) softwood pulp beating to 16.5 ° of SR, the hardwood pulp beating to 27.5 ° of SR.
Wherein, the softwood pulp is larch wood pulp, and the hardwood pulp is poplar wood pulp, in the step (1), is kowtowed
The fibre length of softwood pulp after solution is 0.28mm, and the fibre length of the hardwood pulp after the beating is 0.19mm.
Wherein, the internal sizing agent is by alkenyl succinic anhydride and alkyl ketene dimer by weight 2:1 ratio group
At.
Wherein, the direct dyes is direct red dye.
Wherein, the color fixing agent is by TCD-R and 2070H by weight 2:1 ratio composition.
Wherein, the fire retardant is nanometer red phosphorus.
The paperboard of embodiment 1-5 and comparative example 1 are tested, following test table is obtained：
By the test data of upper table it is found that the paperboard of the present invention has high strength, low water absorption and high color fastness,
It is optimal with red paperboard on color appearance (aberration and color fastness), from the comparison of embodiment 1,4 and 5 it is found that the color pair of paperboard
The influence of mechanical property is little, but from the comparison of embodiment 1 and comparative example 1 it is found that being directly added into for nanometer red phosphorus can lead to power
Learn drastically reducing for performance.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other manner,
Any obvious replacement is not departed under the premise of present inventive concept within protection scope of the present invention.
Claims (10)
1. a kind of preparation method for the paperboard that color fastness is high, it is characterised in that：Include the following steps：
(1) it is beaten：It is 6-10wt% hardwood pulps point by softwood pulp and cellulose concentration that cellulose concentration is 8-12wt%
Other beating, obtains the softwood pulp after beating and the hardwood pulp after beating；
(2) wood pulp mixes：By the softwood pulp after beating and the hardwood pulp after beating by cellulose dry weight ratio 3-4:1-3 is carried out
Mixing obtains mixing wood pulp；
(3) papermaking：Internal sizing agent, direct dyes and color fixing agent is added toward the mixing wood pulp, after stirring evenly, carries out successively
It manufactures paper with pulp, preceding drying, coating, rear drying, press polish, curling trimming is to get to the high paperboard of the color fastness.
2. a kind of preparation method of the high paperboard of color fastness according to claim 1, it is characterised in that：The step (1)
Middle softwood pulp beating is to 15-18 ° of SR, the hardwood pulp beating to 25-30 ° of SR.
3. a kind of preparation method of the high paperboard of color fastness according to claim 1, it is characterised in that：The softwood pulp
For larch wood pulp, the hardwood pulp is poplar wood pulp, in the step (1), the fibre length of the softwood pulp after beating
For 0.24-0.32mm, the fibre length of the hardwood pulp after the beating is 0.16-0.22mm.
4. a kind of preparation method of the high paperboard of color fastness according to claim 1, it is characterised in that：The plasm-glue-blending
Agent is by alkenyl succinic anhydride and alkyl ketene dimer by weight 1-3:1 ratio composition.
5. a kind of preparation method of the high paperboard of color fastness according to claim 1, it is characterised in that：The direct dyes
For direct red dye.
6. a kind of preparation method of the high paperboard of color fastness according to claim 1, it is characterised in that：The color fixing agent is
The color fixing agent TCD-R of Guangdong Demei Fine Chemical Co., Ltd.'s production and/or the production of Qingyuan City grand plan auxiliary agent Co., Ltd
Color fixing agent 2070H.
7. a kind of preparation method of the high paperboard of color fastness according to claim 1, it is characterised in that：The step (3)
In, it further includes fire-retardant master granule to be added together with internal sizing agent, direct dyes and color fixing agent in mixing wood pulp, the fire-retardant mother
Grain is the microballoon of nucleocapsid, and the core of fire-retardant master granule is the mixture of nanometer red phosphorus and nano-aluminum hydroxide, the shell of fire-retardant master granule
For microcrystalline cellulose.
8. a kind of preparation method of the high paperboard of color fastness according to claim 7, it is characterised in that：The fire-retardant master granule
Preparation method include the following steps：
A, at a temperature of 70-90 DEG C, by microcrystalline cellulose 4-10 in mass ratio:100 are dissolved in ionic liquid, and it is fine to form crystallite
The plain solution of dimension；
B, nanometer red phosphorus and nano-aluminum hydroxide are added into the microcrystalline cellulose solution that step A is obtained, after stirring evenly, obtains
The dosage of suspension, the nanometer red phosphorus and nano-aluminum hydroxide is respectively the 3-6wt% and 2-4wt% of suspension；
C, the suspension obtained step B carries out electrostatic spray to get to the fire-retardant master granule.
9. a kind of preparation method of the high paperboard of color fastness according to claim 8, it is characterised in that：The nanometer red phosphorus
Grain size be 60-80nm, the grain size of the nano-aluminum hydroxide is 20-40nm.
10. a kind of preparation method of the high paperboard of color fastness according to claim 8, it is characterised in that：The step C
In, the spray voltage of electrostatic spray is 20-40kV, and vapo(u)rizing temperature is 20-30 DEG C.
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| CN113047080A (en) * | 2021-03-31 | 2021-06-29 | 陕西科技大学 | Colored paper and preparation method thereof |
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| CN108611914B (en) | 2020-11-10 |
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