CN106436431B - A kind of preparation method of highly-breathable aseptic packaging paper - Google Patents

A kind of preparation method of highly-breathable aseptic packaging paper Download PDF

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Publication number
CN106436431B
CN106436431B CN201610918418.XA CN201610918418A CN106436431B CN 106436431 B CN106436431 B CN 106436431B CN 201610918418 A CN201610918418 A CN 201610918418A CN 106436431 B CN106436431 B CN 106436431B
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solution
breathable
polylactic
highly
aseptic packaging
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CN106436431A (en
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李佩燚
侯青青
林春涛
李新平
张蒙
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Shaanxi University of Science and Technology
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Shaanxi University of Science and Technology
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Classifications

    • 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
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/001—Modification of pulp properties
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/24—Polyesters
    • 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
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/70—Multistep processes; Apparatus for adding one or several substances in portions or in various ways to the paper, not covered by another single group of this main group
    • 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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating
    • 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper

Abstract

The invention discloses a kind of preparation methods of highly-breathable aseptic packaging paper, include the following steps：The processing of acid fiber by polylactic solution modification：Sodium alginate is added in acid fiber by polylactic solution, is handled in ultrasonic wave；The processing of polyester fiber solution modification：After polyester fiber is handled using air low temperature plasma method, matter carboxymethyl chitosan solution is added, after being handled in microwave, discongests, defibrination；It manufactures paper with pulp：After acid fiber by polylactic solution and polyester fiber solution are mixed, after be added that treated slurry, Cationic Konjac Glucomannan, cationic polyacrylamide and Ludox mixed liquor, mixed liquor are shaped to wet web；Obtain highly-breathable aseptic packaging paper：After the wet web manufactured paper with pulp is taken off, surface reinforcing agent is sprayed in sizing, is handled in squeezing with hydraulic press；It is dry to get.The present invention has the characteristics that lancinating is high, durability is strong and permeability is excellent, has higher surface strength and printability.

Description

A kind of preparation method of highly-breathable aseptic packaging paper
Technical field
The invention belongs to technical field of preparation of specialty paper, and in particular to a kind of highly-breathable aseptic packaging standby side made of paper Method.
Background technology
Aseptic packaging is a kind of special packing method, is mainly used in the non-returnable container of medical treatment consumptive materials.Without in bacterium bag Article must keep aseptic when in use, therefore, select suitable packaging material, structure sterile barrier is to protect no bacterium bag It is particularly important that interior article exempts from contaminated harm.
Aseptic packaging paper for medical treatment consumptive materials should have excellent strength character, permeability and outstanding microorganism Barrier reaches requirement of the wrapping paper to internal product sterilization when, while needing have higher surface strength and printing suitable Property, it is a kind of speciality paper of high added value.
Aseptic packaging at present is poor at paper air permeability with existing in Preparation Method made of paper, is unfavorable for sterilization；It is poor to hinder bacterium effect, It is difficult to ensure that medical treatment consumptive materials start sterilizing and keep sterile in its whole life cycle；Surface strength is relatively low, printing and post-processing The disadvantage of effect difference, thus it is extremely to have to develop the aseptic packaging paper that a kind of air permeability is high, resistance bacterium effect is good, surface strength is high There is realistic meaning.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of highly-breathable aseptic packaging use Paper method, by after acid fiber by polylactic, polyester fiber modification improve fiber hinder bacterium performance, outflanked with slurry, ensure at Paper gas permeability, using Cationic Konjac Glucomannan, cationic polyacrylamide, Ludox retention and drainage system, and using micro- Fibrillated fibers element enhances paper surface properties.
In order to achieve the above object, the technical solution adopted by the present invention is：
A kind of preparation method of highly-breathable aseptic packaging paper, includes the following steps：
The processing of acid fiber by polylactic solution modification：It weighs acid fiber by polylactic and is configured to aqueous solution, be heated to 40 DEG C -80 DEG C, PH to 5.0-8.0 is adjusted, is weighed in the acid fiber by polylactic solution after sodium alginate is configured to be added to after solution pH5.0-8.0, Sodium alginate soln is added, after being handled in ultrasonic wave, stirring obtains acid fiber by polylactic solution；
The processing of polyester fiber solution modification：After polyester fiber is handled using air low temperature plasma method, it is configured to matter The aqueous solution that percentage is 5%-15% is measured, after being heated to 50 DEG C -75 DEG C and adjusting pH to 2.0-8.0, quality percentage is added Than the carboxymethyl chitosan solution for 1%-10%, after being handled in microwave, 5-30min is discongested, it is molten to obtain polyester fiber for defibrination Liquid；
It manufactures paper with pulp：After slurry is handled, the acid fiber by polylactic solution after modification, which is diluted to mass percent, is The acid fiber by polylactic dilution of 4%-8%, it is 8%-16%'s that the polyester fiber solution after modification, which is diluted to mass percent, Acid fiber by polylactic dilution and mass percent that mass percent is 4%-8% are the poly- of 8%-16% by polyester fiber dilution Must dilute mixed liquor after the mixing of ester fiber dilution, addition treated slurry, cation Amorphophallus rivieri glucomannan in diluting mixed liquor Mixed liquor is obtained after glycan, cationic polyacrylamide and Ludox, mixed liquor is shaped to wet web in sheet forming apparatus；
Obtain highly-breathable aseptic packaging paper：After the wet web manufactured paper with pulp is taken off, it is glued at 40-80 DEG C, simultaneously Uniformly sprinkling surface reinforcing agent is handled with hydraulic press in squeezing；Again will squeezing treated that wet web is put into sheet dryer, At 90 DEG C -120 DEG C, dry 5min-15min obtains highly-breathable aseptic packaging paper.
In a preferred embodiment of the invention, in the acid fiber by polylactic solution modification processing step, the poly- breast The mass ratio of sour fiber and sodium alginate is 10：1-2；The mass percent of acid fiber by polylactic in the acid fiber by polylactic aqueous solution For 10%-20%, the mass percent of sodium alginate is 10%-20% in the sodium alginate aqueous solution.
In a preferred embodiment of the invention, in the acid fiber by polylactic solution modification processing step, the ultrasound In wave processing, the output power of ultrasonic wave is 30-100kHz, time 5-10min.
In a preferred embodiment of the invention, in the acid fiber by polylactic solution modification processing step, the stirring In, mixing speed 10000-20000rpm, speed stirring is 10-30min.
In a preferred embodiment of the invention, in the polyester fiber solution modification processing step, the air is low Warm plasma method is handled：
Under conditions of 30 DEG C -50 DEG C, power 200-400W, air pressure 10-40Pa, using air low temperature plasma treatment 60-300s。
In a preferred embodiment of the invention, in the polyester fiber solution modification processing step, at the microwave When reason, the output frequency of microwave is 100-800w, microwave treatment 5-10min.
In a preferred embodiment of the invention, in the polyester fiber solution modification processing step, the defibrination tool Body is in PFI mills with the rotating speed defibrination 5-15min of 15000-30000n.
In a preferred embodiment of the invention, in the step of manufacturing paper with pulp, the slurry is that mass percent is 30%- 50%, beating degree 40-700The softwood kraft pulp and/or mass percent of SR be 30%-50%, beating degree 35-650SR Sulfate bamboo pulp.
In a preferred embodiment of the invention, in the step of manufacturing paper with pulp, the Cationic Konjac Glucomannan of addition：Sun Cationic polyacrylamide：The mass ratio of Ludox is 20:1:2, meanwhile, the Cationic Konjac Glucomannan solution, cation The mass percent of polyacrylamide solution and silicon sol solution is respectively 0.6%-3%, 0.03%-0.15% and 0.06%-0.3%.
In a preferred embodiment of the invention, the acquirement highly-breathable aseptic packaging is in paper step, the table Face reinforcing agent is the fento cellulose solution that diameter is 1%-5% in 60-80nm, mass percent.
Through the above technical solutions, the beneficial effects of the invention are as follows：
After by the method for the invention, highly-breathable aseptic packaging paper can be made, gas permeability is more than 5.4 μm/Pa.s, splits Disconnected length（It is longitudinal）More than 700Km, aperture is less than 20 μm, smoothness（Front）More than 100s, surface strength is more than 14A, Ji Nengman Requirement when sufficient wrapping paper is to internal product sterilization, and the invasion of energy barrier outside bacterium, play the role of hindering bacterium, simultaneously Need that there is higher surface strength and printability.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, further Illustrate the present invention.
A kind of preparation method of highly-breathable aseptic packaging paper, includes the following steps：
The processing of acid fiber by polylactic solution modification：It weighs acid fiber by polylactic and is configured to aqueous solution, be heated to 40 DEG C -80 DEG C, PH to 5.0-8.0 is adjusted, is weighed in the acid fiber by polylactic solution after sodium alginate is configured to be added to after solution pH5.0-8.0, Sodium alginate soln is added, after being handled in ultrasonic wave, stirring obtains acid fiber by polylactic solution；
Among the above, the mass ratio of the acid fiber by polylactic and sodium alginate is 10：1-2；The acid fiber by polylactic aqueous solution The mass percent of middle acid fiber by polylactic is 10%-20%, and the mass percent of sodium alginate is in the sodium alginate aqueous solution 10%-20%.The sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.3-1.8.
In the ultrasonication, the output power of ultrasonic wave is 30-100kHz, time 5-10min.
Condition in whipping process is mixing speed 10000-20000rpm, and speed stirring is 10-30min.
The processing of polyester fiber solution modification：After polyester fiber is handled using air low temperature plasma method, it is configured to matter The aqueous solution that percentage is 5%-15% is measured, after being heated to 50 DEG C -75 DEG C and adjusting pH to 2.0-8.0, quality percentage is added Than the carboxymethyl chitosan solution for 1%-10%, after being handled in microwave, 5-30min is discongested, it is molten to obtain polyester fiber for defibrination Liquid；
Air low temperature plasma method is handled：In 30 DEG C -50 DEG C, the item of power 200-400W, air pressure 10-40Pa Under part, using air low temperature plasma treatment 60-300s.
The condition of microwave treatment is that the output frequency of microwave is 100-800w, microwave treatment 5-10min.
The carboxymethyl chitosan degree of substitution DS of selection is 0.4-0.8, molecular weight 35000-50000.
The defibrination is specially in PFI mills with the rotating speed defibrination 5-15min of 15000-30000n.
It manufactures paper with pulp：After slurry is handled, the acid fiber by polylactic solution after modification, which is diluted to mass percent, is The acid fiber by polylactic dilution of 4%-8%, it is 8%-16%'s that the polyester fiber solution after modification, which is diluted to mass percent, Acid fiber by polylactic dilution and mass percent that mass percent is 4%-8% are the poly- of 8%-16% by polyester fiber dilution Must dilute mixed liquor after the mixing of ester fiber dilution, addition treated slurry, cation Amorphophallus rivieri glucomannan in diluting mixed liquor Mixed liquor is obtained after glycan, cationic polyacrylamide and Ludox, mixed liquor is shaped to wet web in sheet forming apparatus；
In above-mentioned steps, the slurry be mass percent be 30%-50%, beating degree 40-700The Softwood of SR Salt slurry and/or mass percent be 30%-50%, beating degree 35-650The sulfate bamboo pulp of SR.
When the slurry is softwood kraft pulp and sulfate bamboo pulp mixes, the softwood pulp：The quality of bamboo pulp Than being 1:1.
In above-mentioned steps, the Cationic Konjac Glucomannan of addition：Cationic polyacrylamide：The mass ratio of Ludox is 20:1:2, meanwhile, the Cationic Konjac Glucomannan solution, cationic polyacrylamide solution and silicon sol solution quality Percentage is respectively 0.6%-3%, 0.03%-0.15% and 0.06%-0.3%.
Wherein, the Cationic Konjac Glucomannan degree of substitution DS is 0.2-0.6, viscosity 6000-18000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web manufactured paper with pulp is taken off, it is glued at 40-80 DEG C, simultaneously Uniformly sprinkling surface reinforcing agent is handled with hydraulic press in squeezing；Again will squeezing treated that wet web is put into sheet dryer, At 90 DEG C -120 DEG C, dry 5min-15min obtains highly-breathable aseptic packaging paper.
In above-mentioned steps, the surface reinforcing agent is the fento chemical fibre that diameter is 1%-5% in 60-80nm, mass percent The plain solution of dimension.
Embodiment 1
A kind of preparation method of highly-breathable aseptic packaging paper, includes the following steps：
The processing of acid fiber by polylactic solution modification：Acid fiber by polylactic is weighed first and adds water to be configured to 12% acid fiber by polylactic Solution, be heated to 45 DEG C, modulate pH to 5.5, it is that 12% sodium alginate stirs 40min that mass percent, which is added, in output power To handle 8min in the ultrasonic wave of 50kHz, and 20min is stirred with the speed of 12000rpm in blender, is prepared into polylactic acid Fiber solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.3。
The processing of polyester fiber solution modification：By polyester fiber under conditions of 35 DEG C, power 250W, air pressure 15Pa, use After air low temperature plasma treatment 250s, it is configured to 5% solution, and is heated to 55 DEG C, modulates pH to 3.0, quality percentage is added Number is 4% carboxymethyl chitosan, handles 6min in the microwave that output frequency is 300w, is discongested in high speed fluffer 15min, with the rotating speed defibrination 5min of 25000n in PFI mills；
The carboxymethyl chitosan degree of substitution DS of selection is 0.4, molecular weight 35000.
It manufactures paper with pulp：It is 44% by mass percent, beating degree 550The commodity softwood kraft pulp and mass percent of SR For 44%, beating degree 450After the commodity sulfate bamboo pulp of SR is mixed into slurry, by the acid fiber by polylactic solution after modification It is 4% acid fiber by polylactic dilution to be diluted to mass percent, and the polyester fiber solution dilution mass percent after modification is 8% polyester fiber dilution after mixing by above-mentioned two dilution adds slurry, percentage is 1.2% cationic konjaku Glucomannan aqueous solution, mass percent are 0.24% cationic polyacrylamide aqueous solution and mass percent is that 0.12% silicon is molten Glue is shaped to wet web in sheet forming apparatus；
In above-mentioned steps, the softwood pulp：The mass ratio of bamboo pulp is 1:1.
Meanwhile in above-mentioned steps, Cationic Konjac Glucomannan degree of substitution DS is 0.2, viscosity 6000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web manufactured paper with pulp is taken off, it is glued at 50 DEG C, while uniformly Surface reinforcing agent is sprayed, is handled in squeezing with hydraulic press；Again will squeezing treated that wet web is put into sheet dryer, 90 At DEG C, dry 15min obtains highly-breathable aseptic packaging paper.
In above-mentioned steps, the surface reinforcing agent is diameter 60nm, mass percent is 1% fento cellulose solution.
Embodiment 2
A kind of preparation method of highly-breathable aseptic packaging paper, includes the following steps：
The processing of acid fiber by polylactic solution modification：Acid fiber by polylactic is weighed first and adds water to be configured to 15% acid fiber by polylactic Solution, be heated to 60 DEG C, modulate pH to 6.5, it is that 15% sodium alginate stirs 60min that mass percent, which is added, in output power To handle 6min in the ultrasonic wave of 60kHz, and 15min is stirred with the speed of 16000rpm in blender, is prepared into polylactic acid Fiber solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.41。
The processing of polyester fiber solution modification：By polyester fiber under conditions of 40 DEG C, power 300W, air pressure 30Pa, use After air low temperature plasma treatment 200s, it is configured to 10% solution, and is heated to 65 DEG C, modulates pH to 4.0, quality hundred is added The carboxymethyl chitosan that score is 5% handles 5min in the microwave that output frequency is 500w, is discongested in high speed fluffer 25min, with the rotating speed defibrination 12min of 15000n in PFI mills；
The carboxymethyl chitosan degree of substitution DS of selection is 0.5, molecular weight 40000.
It manufactures paper with pulp：It is 41% by mass percent, beating degree 450The commodity softwood kraft pulp and mass percent of SR For 41%, beating degree 500After the commodity sulfate bamboo pulp of SR is mixed into slurry, by the acid fiber by polylactic solution after modification It is 6% acid fiber by polylactic dilution to be diluted to mass percent, and the polyester fiber solution dilution mass percent after modification is 12% polyester fiber after mixing by above-mentioned two dilution adds slurry, percentage is 2% cationic konjak portuguese gansu polyose Sugar aqueous solution, mass percent are the aqueous solution of 0.1% cationic polyacrylamide and mass percent is 0.2% Ludox, Wet web is shaped in sheet forming apparatus；
In above-mentioned steps, the softwood pulp：The mass ratio of bamboo pulp is 1:1.
Meanwhile in above-mentioned steps, Cationic Konjac Glucomannan degree of substitution DS is 0.4, viscosity 10000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web manufactured paper with pulp is taken off, it is glued at 60 DEG C, while uniformly Surface reinforcing agent is sprayed, is handled in squeezing with hydraulic press；Again will squeezing treated that wet web is put into sheet dryer, At 105 DEG C, dry 8min obtains highly-breathable aseptic packaging paper.
In above-mentioned steps, the surface reinforcing agent be diameter 65nm, mass percent be 2% fento cellulose it is molten Liquid.
Embodiment 3
A kind of preparation method of highly-breathable aseptic packaging paper, includes the following steps：
The processing of acid fiber by polylactic solution modification：Acid fiber by polylactic is weighed first and adds water to be configured to 20% acid fiber by polylactic Solution, be heated to 70 DEG C, modulate pH to 7.0, it is that 20% sodium alginate stirs 70min that mass percent, which is added, in output power To handle 5min in the ultrasonic wave of 100kHz, and 25min is stirred with the speed of 20000rpm in blender, is prepared into polylactic acid Fiber solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.5。
The processing of polyester fiber solution modification：By polyester fiber under conditions of 50 DEG C, power 400W, air pressure 40Pa, use After air low temperature plasma treatment 100s, it is configured to 15% solution, and is heated to 70 DEG C, modulates pH to 7.0, quality hundred is added The carboxymethyl chitosan that score is 8% handles 8min in the microwave that output frequency is 800w, is discongested in high speed fluffer 20min, with the rotating speed defibrination 15min of 15000n in PFI mills；
The carboxymethyl chitosan degree of substitution DS of selection is 0.6, molecular weight 45000.
It manufactures paper with pulp：It is 50% by mass percent, beating degree 700The commodity softwood kraft pulp and mass percent of SR For 30%, beating degree 350After the commodity sulfate bamboo pulp of SR is mixed into slurry, by the acid fiber by polylactic solution after modification It is diluted to the acid fiber by polylactic dilution that mass percent is 8%, the polyester fiber solution after modification dilutes mass percent For 16% polyester fiber dilution, after mixing by above-mentioned two dilution, add slurry, percentage be 1.0% sun from Sub- konjak portuguese gansu polyose sugar aqueous solution, the aqueous solution that mass percent is 0.05% cationic polyacrylamide and mass percent are 0.1% Ludox, is shaped to wet web in sheet forming apparatus；
In above-mentioned steps, the softwood pulp：The mass ratio of bamboo pulp is 1:1.
Meanwhile in above-mentioned steps, Cationic Konjac Glucomannan degree of substitution DS is 0.6, viscosity 12000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web manufactured paper with pulp is taken off, at 65 DEG C, diameter is uniformly sprayed Be 4.5% fibrillation cellulose surface reinforcing agent for 70nm, mass percent, with hydraulic press pressure be 6Mpa squeeze 6min；Again By treated, wet web is put into sheet dryer, and at 110 DEG C, dry 10min obtains highly-breathable aseptic packaging use Paper.
Embodiment 4
A kind of preparation method of highly-breathable aseptic packaging paper, includes the following steps：
The processing of acid fiber by polylactic solution modification：Acid fiber by polylactic is weighed first and adds water to be configured to 10% acid fiber by polylactic Solution, be heated to 40 DEG C, modulate pH to 5.0, it is that 10% sodium alginate stirs 40min that mass percent, which is added, in output power To handle 10min in the ultrasonic wave of 30kHz, and 10min is stirred with the speed of 10000rpm in blender, is prepared into polylactic acid Fiber solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.6。
The processing of polyester fiber solution modification：By polyester fiber under conditions of 30 DEG C, power 200W, air pressure 10Pa, use After air low temperature plasma treatment 300s, it is configured to 7% solution, and is heated to 50 DEG C, modulates pH to 2.0, quality percentage is added Number is 1% carboxymethyl chitosan, handles 10min in the microwave that output frequency is 100w, is discongested in high speed fluffer 5min, with the rotating speed defibrination 7min of 20000n in PFI mills；
The carboxymethyl chitosan degree of substitution DS of selection is 0.5, molecular weight 50000.
It manufactures paper with pulp：It is 30% by mass percent, beating degree 100The commodity softwood kraft pulp of SR will change as slurry Property treated that acid fiber by polylactic solution is diluted to that mass percent is 4% acid fiber by polylactic dilution, the polyester after modification Fiber solution dilution mass percent is that 8% polyester fiber dilution after mixing by above-mentioned two dilution adds slurry Material, percentage are 0.6% Cationic Konjac Glucomannan aqueous solution, mass percent is that 0.03% cationic polyacrylamide is water-soluble Liquid and mass percent are 0.06% Ludox, and wet web is shaped in sheet forming apparatus；
Meanwhile in above-mentioned steps, Cationic Konjac Glucomannan degree of substitution DS is 0.5, viscosity 18000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web manufactured paper with pulp is taken off, it is glued at 40 DEG C, while uniformly Surface reinforcing agent is sprayed, is handled in squeezing with hydraulic press；Again will squeezing treated that wet web is put into sheet dryer, 90 At DEG C, dry 15min obtains highly-breathable aseptic packaging paper.
The fento cellulose that in above-mentioned steps, the surface reinforcing agent is diameter 60nm, mass percent is 2.5% is molten Liquid.
Embodiment 5
A kind of preparation method of highly-breathable aseptic packaging paper, includes the following steps：
The processing of acid fiber by polylactic solution modification：Acid fiber by polylactic is weighed first and adds water to be configured to 16% acid fiber by polylactic Solution, be heated to 50 DEG C, modulate pH to 6.0, it is that 16% sodium alginate stirs 60min that mass percent, which is added, in output power To handle 6min in the ultrasonic wave of 80kHz, and 18min is stirred with the speed of 14000rpm in blender, is prepared into polylactic acid Fiber solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.7。
The processing of polyester fiber solution modification：By polyester fiber under conditions of 46 DEG C, power 320W, air pressure 20Pa, use After air low temperature plasma treatment 60s, it is configured to 12% solution, and is heated to 60 DEG C, modulates pH to 8.0, quality percentage is added Number is 6% carboxymethyl chitosan, handles 7min in the microwave that output frequency is 600w, is discongested in high speed fluffer 28min, with the rotating speed defibrination 9min of 24000n in PFI mills；
The carboxymethyl chitosan degree of substitution DS of selection is 0.7, molecular weight 40000.
It manufactures paper with pulp：It is 50% by mass percent, beating degree 650The commodity sulfate bamboo pulp of SR is as slurry, at modified It is 5% acid fiber by polylactic dilution, the polyester fiber after modification that acid fiber by polylactic solution after reason, which is diluted to mass percent, Solution dilution mass percent is that 10% polyester fiber after mixing by above-mentioned two dilution adds slurry, percentage For the aqueous solution and matter that 2.4% Cationic Konjac Glucomannan aqueous solution, mass percent are 0.11% cationic polyacrylamide Amount percentage is 0.15% Ludox, and wet web is shaped in sheet forming apparatus；
Meanwhile in above-mentioned steps, Cationic Konjac Glucomannan degree of substitution DS is 0.45, viscosity 12000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web manufactured paper with pulp is taken off, it is glued at 56 DEG C, while uniformly Surface reinforcing agent is sprayed, is handled in squeezing with hydraulic press；Again will squeezing treated that wet web is put into sheet dryer, At 105 DEG C, dry 8min obtains highly-breathable aseptic packaging paper.
In above-mentioned steps, the surface reinforcing agent be diameter 80nm, mass percent be 5% fento cellulose it is molten Liquid.
Embodiment 6
A kind of preparation method of highly-breathable aseptic packaging paper, includes the following steps：
The processing of acid fiber by polylactic solution modification：Acid fiber by polylactic is weighed first and adds water to be configured to 18% acid fiber by polylactic Solution, be heated to 80 DEG C, modulate pH to 8.0, it is that 18% sodium alginate stirs 70min that mass percent, which is added, in output power To handle 9min in the ultrasonic wave of 80kHz, and 30min is stirred with the speed of 18000rpm in blender, is prepared into polylactic acid Fiber solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.8。
The processing of polyester fiber solution modification：By polyester fiber under conditions of 44 DEG C, power 280W, air pressure 28Pa, use After air low temperature plasma treatment 140s, it is configured to 13% solution, and is heated to 75 DEG C, modulates pH to 8.0, quality hundred is added The carboxymethyl chitosan that score is 10% handles 9min in the microwave that output frequency is 700w, is discongested in high speed fluffer 28min, with the rotating speed defibrination 11min of 30000n in PFI mills；
The carboxymethyl chitosan degree of substitution DS of selection is 0.8, molecular weight 50000.
It manufactures paper with pulp：It is 35% by mass percent, beating degree 650The commodity sulfate bamboo pulp of SR is as slurry, at modified Acid fiber by polylactic solution after reason is diluted to the acid fiber by polylactic dilution that mass percent is 7%, and the polyester after modification is fine The polyester fiber dilution that dimension solution dilution mass percent is 10% after mixing by above-mentioned two dilution adds Slurry, percentage are 3.0% Cationic Konjac Glucomannan aqueous solution, mass percent is 0.15% cationic polyacrylamide Aqueous solution and mass percent are 0.15% Ludox, and wet web is shaped in sheet forming apparatus；
Meanwhile in above-mentioned steps, Cationic Konjac Glucomannan degree of substitution DS is 0.6, viscosity 15000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web manufactured paper with pulp is taken off, at 72 DEG C, diameter is uniformly sprayed Be 3% fibrillation cellulose surface reinforcing agent for 75nm, mass percent, with hydraulic press pressure be 6Mpa squeeze 6min；Again will Treated, and wet web is put into sheet dryer, and at 110 DEG C, dry 10min obtains highly-breathable aseptic packaging paper.
The highly-breathable aseptic packaging paper that above-described embodiment 1-6 is prepared, gas permeability are more than 5.4 μm/Pa.s, split Disconnected length（It is longitudinal）More than 700Km, aperture is less than 20 μm, smoothness（Front）More than 100s, surface strength is more than 14A, Ji Nengman Requirement when sufficient wrapping paper is to internal product sterilization, and the invasion of energy barrier outside bacterium, play the role of hindering bacterium, simultaneously Need that there is higher surface strength and printability.
Compared with prior art, the present invention can reach intensity requirement of the wrapping paper to internal product sterilization when, Provide that lancinating is high, durability is strong, permeability is excellent and outstanding microbial barrier, but with higher surface strength and Printability, it is horizontal that every the key technical indexes reaches aseptic packaging paper quality.
The present invention, which can be made into, assists in ensuring that medical instrument starts sterilizing and keeps sterile sterile in its whole life cycle Packaging.Can meet penetrate paper to packaged product carry out disinfection sterilizing require and barrier outside bacterium invasion, play Hinder the effect of bacterium；Paper is smooth, and tensile strength is high, adapts to the requirement of printing and post-processing, and every the key technical indexes reaches doctor It treats resistance bacterium and is packed for paper quality level.

Claims (10)

1. a kind of preparation method of highly-breathable aseptic packaging paper, which is characterized in that include the following steps：
The processing of acid fiber by polylactic solution modification：It weighs acid fiber by polylactic and is configured to aqueous solution, be heated to 40 DEG C -80 DEG C, adjust PH to 5.0-8.0 is weighed in the acid fiber by polylactic solution after sodium alginate is configured to be added to after solution pH5.0-8.0, super After being handled in sound wave, stirring obtains the acid fiber by polylactic solution after modification；
The processing of polyester fiber solution modification：After polyester fiber is handled using air low temperature plasma method, it is configured to quality hundred Divide the aqueous solution than being 5%-15%, after being heated to 50 DEG C -75 DEG C and adjusting pH to 2.0-8.0, addition mass percent is The carboxymethyl chitosan solution of 1%-10% discongests 5-30min, defibrination obtains polyester fiber solution after being handled in microwave；
It manufactures paper with pulp：After slurry is handled, it is 4%-8% that the acid fiber by polylactic solution after modification, which is diluted to mass percent, Acid fiber by polylactic dilution, it is fine that the polyester fiber solution after modification is diluted to the polyester that mass percent is 8%-16% Dilution is tieed up, the polyester fiber for being 8%-16% by the acid fiber by polylactic dilution mass percent that mass percent is 4%-8% is dilute Must dilute mixed liquor after releasing liquid mixing, in diluting mixed liquor addition treated slurry, Cationic Konjac Glucomannan solution, Mixed liquor is obtained after cationic polyacrylamide solution and silicon sol solution, mixed liquor is shaped to wet web in sheet forming apparatus；
Obtain highly-breathable aseptic packaging paper：After the wet web manufactured paper with pulp is taken off, it is glued at 40-80 DEG C, while uniformly Surface reinforcing agent is sprayed, is handled in squeezing with hydraulic press；Again will squeezing treated that wet web is put into sheet dryer, 90 At DEG C -120 DEG C, dry 5min-15min obtains highly-breathable aseptic packaging paper.
2. a kind of preparation method of highly-breathable aseptic packaging paper according to claim 1, it is characterised in that：It is described poly- In acid fiber solution modification processing step, the mass ratio of the acid fiber by polylactic and sodium alginate is 10：1-2；The poly- breast The mass percent of acid fiber by polylactic is 10%-20% in sour fiber aqueous solution, the matter of sodium alginate in the sodium alginate soln Amount percentage is 10%-20%.
3. a kind of preparation method of highly-breathable aseptic packaging paper according to claim 1, it is characterised in that：It is described poly- In acid fiber solution modification processing step, in the ultrasonication, the output power of ultrasonic wave is 30-100W, time 5- 10min。
4. a kind of preparation method of highly-breathable aseptic packaging paper according to claim 1, it is characterised in that：It is described poly- In acid fiber solution modification processing step, in the stirring, mixing speed 10000-20000rpm, speed stirring is 10- 30min。
5. a kind of preparation method of highly-breathable aseptic packaging paper according to claim 1, it is characterised in that：It is described poly- In ester fiber solution modification processing step, the air low temperature plasma method processing is specially：
Under conditions of 30 DEG C -50 DEG C, power 200-400W, air pressure 10-40Pa, using air low temperature plasma treatment 60- 300s。
6. a kind of preparation method of highly-breathable aseptic packaging paper according to claim 1, it is characterised in that：It is described poly- In ester fiber solution modification processing step, when the microwave treatment, the output power of microwave is 100-800W, microwave treatment 5- 10min。
7. a kind of preparation method of highly-breathable aseptic packaging paper according to claim 1, it is characterised in that：It is described poly- In ester fiber solution modification processing step, the defibrination is specially in PFI mills with the rotating speed defibrination 5- of 15000-30000n 15min。
8. a kind of preparation method of highly-breathable aseptic packaging paper according to claim 1, it is characterised in that：It is described to copy Make in step, the slurry be the softwood kraft pulp that mass percent is 30%-50%, beating degree is 40-70 ° of SR and/or The sulfate bamboo pulp that mass percent is 30%-50%, beating degree is 35-65 ° of SR.
9. a kind of preparation method of highly-breathable aseptic packaging paper according to claim 1, it is characterised in that：It is described to copy It makes in step, the Cationic Konjac Glucomannan of addition：Cationic polyacrylamide：The mass ratio of Ludox is 20:1:2, together When, the mass percent point of the Cationic Konjac Glucomannan solution, cationic polyacrylamide solution and silicon sol solution It Wei not 0.6%-3%, 0.03%-0.15% and 0.06%-0.3%.
10. a kind of preparation method of highly-breathable aseptic packaging paper according to claim 1, it is characterised in that：It is described Highly-breathable aseptic packaging is obtained in paper step, the surface reinforcing agent is diameter in 60-80nm, mass percent 1%- 5% fento cellulose solution.
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