CN106436431A - Preparation method of high-breathability aseptic packaging paper - Google Patents

Preparation method of high-breathability aseptic packaging paper Download PDF

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Publication number
CN106436431A
CN106436431A CN201610918418.XA CN201610918418A CN106436431A CN 106436431 A CN106436431 A CN 106436431A CN 201610918418 A CN201610918418 A CN 201610918418A CN 106436431 A CN106436431 A CN 106436431A
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China
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solution
paper
aseptic packaging
mass percent
breathable
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CN201610918418.XA
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CN106436431B (en
Inventor
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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

The invention discloses a preparation method of high-breathability aseptic packaging paper. The preparation method comprises the following steps: modifying a polylactic acid fiber liquid: adding sodium alginate into the polylactic acid fiber solution, and performing ultrasonic treatment; modifying a polyester fiber liquid: treating polyester fiber by an air low-temperature plasma method, adding a carboxymethyl chitosan solution, performing microwave treatment, defibering and pulping; making paper: mixing the polylactic acid fiber solution and the polyester fiber solution, adding the treated pulp, cationic konjac glucomannan, cationic polyacrylamide and silica sol to obtain a mixed solution, and shaping the mixed solution into a wet paper web; obtaining the high-breathability aseptic packaging paper: uncovering the wet paper web obtained in the paper making process, sizing, spraying a surface enhancer, and pressing by using an oil press; drying to obtain the final high-breathability aseptic packaging paper. The preparation method has the characteristics of high tearing performance, strong durability and good breathability and has relatively high 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 is and in particular to a kind of highly-breathable aseptic packaging is with 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.No in bacterium bag Article must use when keep aseptic, therefore, select suitable packaging material, build sterile barrier to protect no bacterium bag It is particularly important that interior article exempt from contaminated harm.
Aseptic packaging paper for medical treatment consumptive materials should have excellent strength character, permeability and outstanding microorganism Barrier, reaches wrapping paper to requirement during internal product sterilization, simultaneously need to having higher surface strength and printing suitable Property, it is a kind of speciality paper of high added value.
Aseptic packaging at present is poor with there is into paper air permeability in Preparation Method made of paper, is unfavorable for sterilization；Resistance bacterium effect is poor, It is difficult to ensure that medical treatment consumptive materials start sterilizing and keep aseptic in its whole life cycle；Surface strength is relatively low, printing and afterwards processing The shortcoming of effect difference, thus develop that a kind of air permeability is high, the resistance aseptic packaging paper that bacterium effect is good, surface strength is high is that extremely have There is realistic meaning.
Content of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of highly-breathable aseptic packaging is used Paper method, being improved fiber after to acid fiber by polylactic, polyester fiber modification and hinders bacterium performance, being outflanked with slurry it is ensured that becoming Paper breathability, using Cationic Konjac Glucomannan, PAMC, Ludox retention and drainage system, and using micro- Fibrillated fibers element strengthens paper surface properties.
In order to achieve the above object, the technical solution used in the present invention is：
A kind of preparation method of highly-breathable aseptic packaging paper, comprises the following steps：
Acid fiber by polylactic solution modification is processed：Weigh acid fiber by polylactic and be configured to aqueous solution, be heated to 40 DEG C -80 DEG C, adjust PH to 5.0-8.0, weighs in the acid fiber by polylactic solution after being added to pH5.0-8.0 after sodium alginate is configured to solution, adds Sodium alginate soln, after processing in ultrasound wave, stirring, obtain acid fiber by polylactic solution；
Polyester fiber solution modification is processed：Polyester fiber is adopted after the process of air low temperature plasma method, is configured to quality hundred Divide than the aqueous solution for 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%, after processing, discongests 5-30min, defibrination, obtains polyester fiber solution in microwave；
Manufacture paper with pulp：After slurry is processed, it is 4%-8% that the acid fiber by polylactic solution after modification is diluted to mass percent Acid fiber by polylactic diluent, by the polyester fiber solution after modification be diluted to mass percent be 8%-16% polyester Fiber dilution liquid, will be fine for the polyester for 8%-16% for the acid fiber by polylactic diluent and mass percent for 4%-8% for the mass percent Dimension diluent mixing after dilution mixture liquid, in dilution mixture liquid addition process after slurry, Cationic Konjac Glucomannan, Mixed liquor is obtained, mixed liquor is shaped to wet web in sheet forming apparatus after PAMC and Ludox；
Obtain highly-breathable aseptic packaging paper：After the wet web obtaining manufacturing paper with pulp is taken off, in 40-80 DEG C of applying glue, uniformly simultaneously Spray surface reinforcing agent, processed in squeezing with hydraulic press；Wet web after processing squeezing again is put in sheet dryer, 90 At DEG C -120 DEG C, 5min-15min is dried, obtains highly-breathable aseptic packaging paper.
In a preferred embodiment of the invention, in described acid fiber by polylactic solution modification process step, described poly- breast Sour fiber is 10 with the mass ratio of sodium alginate：1-2；The mass percent of acid fiber by polylactic in described acid fiber by polylactic aqueous solution For 10%-20%, in described sodium alginate aqueous solution, the mass percent of sodium alginate is 10%-20%.
In a preferred embodiment of the invention, in described acid fiber by polylactic solution modification process step, described ultrasonic During ripple is processed, the output of ultrasound wave is 30-100kHz, time 5-10min.
In a preferred embodiment of the invention, in described acid fiber by polylactic solution modification process step, described stirring In, mixing speed is 10000-20000rpm, and speed stirs as 10-30min.
In a preferred embodiment of the invention, in described polyester fiber solution modification process step, described air is low Warm plasma method processes and 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.
In a preferred embodiment of the invention, in described polyester fiber solution modification process step, at described microwave During reason, the output frequency of microwave is 100-800w, microwave treatment 5-10min.
In a preferred embodiment of the invention, in described polyester fiber solution modification process step, described defibrination tool Body is with the rotating speed defibrination 5-15min of 15000-30000n in PFI mill.
In a preferred embodiment of the invention, described manufacture paper with pulp in step, described slurry for mass percent be 30%- 50%th, beating degree is 40-700The softwood kraft pulp of SR and/or mass percent are 30%-50%, beating degree is 35-650SR Sulfate bamboo pulp.
In a preferred embodiment of the invention, described manufacture paper with pulp in step, the Cationic Konjac Glucomannan of addition：Sun Cationic polyacrylamide：The mass ratio of Ludox is 20:1:2, meanwhile, described 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, described acquirement highly-breathable aseptic packaging is with paper step, described table Face reinforcing agent is diameter is the fento cellulose solution of 1%-5% in 60-80nm, mass percent.
By technique scheme, the invention has the beneficial effects as follows：
After the inventive method, highly-breathable aseptic packaging paper can be obtained, its breathability is more than 5.4 μm/Pa.s, fracture length （Longitudinally）More than 700Km, aperture is less than 20 μm, smoothness（Front）More than 100s, surface strength is more than 14A, can meet bag Dress paper is to requirement during internal product sterilization, and the invasion of the outside antibacterial of energy barrier, plays the effect of resistance bacterium, simultaneously need to There is higher surface strength and printability.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to understand, further Illustrate the present invention.
A kind of preparation method of highly-breathable aseptic packaging paper, comprises the following steps：
Acid fiber by polylactic solution modification is processed：Weigh acid fiber by polylactic and be configured to aqueous solution, be heated to 40 DEG C -80 DEG C, adjust PH to 5.0-8.0, weighs in the acid fiber by polylactic solution after being added to pH5.0-8.0 after sodium alginate is configured to solution, adds Sodium alginate soln, after processing in ultrasound wave, stirring, obtain acid fiber by polylactic solution；
In above-mentioned, described acid fiber by polylactic is 10 with the mass ratio of sodium alginate：1-2；Poly- in described acid fiber by polylactic aqueous solution The mass percent of acid fiber is 10%-20%, and in described sodium alginate aqueous solution, the mass percent of sodium alginate is 10%- 20%.From sodium alginate monodispersity index par（Mn）/ average weight（Mw）Coefficient is 1.3-1.8.
In described ultrasonic Treatment, the output of ultrasound wave is 30-100kHz, time 5-10min.
Condition in whipping process is that mixing speed is 10000-20000rpm, and speed stirs as 10-30min.
Polyester fiber solution modification is processed：Polyester fiber is adopted after the process of air low temperature plasma method, is configured to matter Amount percentage ratio is the aqueous solution of 5%-15%, after being heated to 50 DEG C -75 DEG C and adjusting pH to 2.0-8.0, adds percent mass The carboxymethyl chitosan solution for 1%-10% for the ratio, after processing, discongests 5-30min, defibrination, obtains polyester fiber molten in microwave Liquid；
Air low temperature plasma method processes and is specially：30 DEG C -50 DEG C, power 200-400W, air pressure 10-40Pa condition Under, 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.
From carboxymethyl chitosan substitution value DS be 0.4-0.8, molecular weight be 35000-50000.
Described defibrination is specially in PFI mill with the rotating speed defibrination 5-15min of 15000-30000n.
Manufacture paper with pulp：After slurry is processed, the acid fiber by polylactic solution after modification is diluted to mass percent is The acid fiber by polylactic diluent of 4%-8%, it is 8%-16%'s that the polyester fiber solution after modification is diluted to mass percent Polyester fiber diluent, the acid fiber by polylactic diluent for 4%-8% for the mass percent and mass percent are the poly- of 8%-16% Dilution mixture liquid is obtained, the slurry after addition is processed in dilution mixture liquid, cation Amorphophallus rivieri glucomannan after the mixing of ester fiber diluent Mixed liquor is obtained, mixed liquor is shaped to wet web in sheet forming apparatus after polysaccharide, PAMC and Ludox；
In above-mentioned steps, described slurry for mass percent be 30%-50%, beating degree be 40-700The softwood kraft pulp of SR And/or mass percent be 30%-50%, beating degree be 35-650The sulfate bamboo pulp of SR.
When described slurry is softwood kraft pulp and sulfate bamboo pulp mixes, described softwood pulp：The quality of bamboo pulp Than for 1:1.
In above-mentioned steps, the Cationic Konjac Glucomannan of addition：PAMC：The mass ratio of Ludox is 20:1:2, meanwhile, the quality of described Cationic Konjac Glucomannan solution, PAMC solution and silicon sol solution Percent is respectively 0.6%-3%, 0.03%-0.15% and 0.06%-0.3%.
Wherein, described Cationic Konjac Glucomannan substitution value DS is 0.2-0.6, and viscosity is 6000-18000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web obtaining manufacturing paper with pulp is taken off, in 40-80 DEG C of applying glue, simultaneously Uniformly spray surface reinforcing agent, processed in squeezing with hydraulic press；Wet web after processing squeezing again is put in sheet dryer, At 90 DEG C -120 DEG C, 5min-15min is dried, obtains highly-breathable aseptic packaging paper.
In above-mentioned steps, described surface reinforcing agent is diameter is the fento chemical fibre of 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, comprises the following steps：
Acid fiber by polylactic solution modification is processed：Weigh first acid fiber by polylactic acid fiber by polylactic adds water be configured to 12% molten Liquid, is heated to 45 DEG C, modulates pH to 5.5, adds mass percent to be 12% sodium alginate stirring 40min, in output is Process 8min in the ultrasound wave of 50kHz, and in blender, 20min is stirred with the speed of 12000rpm, be prepared into polylactic acid fine Dimension solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.3.
Polyester fiber solution modification is processed：By polyester fiber under conditions of 35 DEG C, power 250W, air pressure 15Pa, adopt After air low temperature plasma treatment 250s, it is configured to 5% solution, and is heated to 55 DEG C, modulate pH to 3.0, add percent mass The carboxymethyl chitosan for 4% for the number, processes 6min in output frequency is for the microwave of 300w, discongests in high speed fluffer 15min, with the rotating speed defibrination 5min of 25000n in PFI mill；
From carboxymethyl chitosan substitution value DS be 0.4, molecular weight be 35000.
Manufacture paper with pulp：By mass percent be 44%, beating degree be 550The commodity softwood kraft pulp of SR and mass percent It is 45 for 44%, beating degree0After the commodity sulfate bamboo pulp of SR is mixed into slurry, by the acid fiber by polylactic solution after modification Being diluted to mass percent is 4% acid fiber by polylactic diluent, and the polyester fiber solution dilution mass percent after modification is 8% polyester fiber diluent, after above-mentioned two diluent mix homogeneously, adds slurry, percent is 1.2% cation Rhizoma amorphophalli Glucomannoglycan aqueous solution, mass percent are 0.24% PAMC 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, described softwood pulp：The mass ratio of bamboo pulp is 1:1.
Meanwhile, in above-mentioned steps, Cationic Konjac Glucomannan substitution value DS is 0.2, and viscosity is 6000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web obtaining manufacturing paper with pulp is taken off, in 50 DEG C of applying glues, uniformly simultaneously Spray surface reinforcing agent, processed in squeezing with hydraulic press；Wet web after processing squeezing again is put in sheet dryer, 90 At DEG C, 15min is dried, obtains highly-breathable aseptic packaging paper.
The fento cellulose solution that in above-mentioned steps, described surface reinforcing agent is diameter 60nm, mass percent is 1%.
Embodiment 2
A kind of preparation method of highly-breathable aseptic packaging paper, comprises the following steps：
Acid fiber by polylactic solution modification is processed：Weigh first acid fiber by polylactic acid fiber by polylactic adds water be configured to 15% molten Liquid, is heated to 60 DEG C, modulates pH to 6.5, adds mass percent to be 15% sodium alginate stirring 60min, in output is Process 6min in the ultrasound wave of 60kHz, and in blender, 15min is stirred with the speed of 16000rpm, be prepared into polylactic acid fine Dimension solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.41.
Polyester fiber solution modification is processed：By polyester fiber under conditions of 40 DEG C, power 300W, air pressure 30Pa, adopt After air low temperature plasma treatment 200s, it is configured to 10% solution, and is heated to 65 DEG C, modulate pH to 4.0, add quality hundred Fraction is 5% carboxymethyl chitosan, processes 5min, discongest in high speed fluffer in output frequency is for the microwave of 500w 25min, with the rotating speed defibrination 12min of 15000n in PFI mill；
From carboxymethyl chitosan substitution value DS be 0.5, molecular weight be 40000.
Manufacture paper with pulp：By mass percent be 41%, beating degree be 450The commodity softwood kraft pulp of SR and mass percent It is 50 for 41%, beating degree0After the commodity sulfate bamboo pulp of SR is mixed into slurry, by the acid fiber by polylactic solution after modification Being diluted to mass percent is 6% acid fiber by polylactic diluent, and the polyester fiber solution dilution mass percent after modification is 12% polyester fiber, after above-mentioned two diluent mix homogeneously, adds slurry, percent is 2% cation konjak portuguese gansu polyose Sugar aqueous solution, mass percent are the aqueous solution of 0.1% PAMC and mass percent is 0.2% Ludox, It is shaped to wet web in sheet forming apparatus；
In above-mentioned steps, described softwood pulp：The mass ratio of bamboo pulp is 1:1.
Meanwhile, in above-mentioned steps, Cationic Konjac Glucomannan substitution value DS is 0.4, and viscosity is 10000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web obtaining manufacturing paper with pulp is taken off, in 60 DEG C of applying glues, uniformly simultaneously Spray surface reinforcing agent, processed in squeezing with hydraulic press；Wet web after processing squeezing again is put in sheet dryer, At 105 DEG C, 8min is dried, obtains highly-breathable aseptic packaging paper.
In above-mentioned steps, described surface reinforcing agent be diameter 65nm, mass percent be 2% fento cellulose molten Liquid.
Embodiment 3
A kind of preparation method of highly-breathable aseptic packaging paper, comprises the following steps：
Acid fiber by polylactic solution modification is processed：Weigh first acid fiber by polylactic acid fiber by polylactic adds water be configured to 20% molten Liquid, is heated to 70 DEG C, modulates pH to 7.0, adds mass percent to be 20% sodium alginate stirring 70min, in output is Process 5min in the ultrasound wave of 100kHz, and in blender, 25min is stirred with the speed of 20000rpm, be prepared into polylactic acid fine Dimension solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.5.
Polyester fiber solution modification is processed：By polyester fiber under conditions of 50 DEG C, power 400W, air pressure 40Pa, adopt After air low temperature plasma treatment 100s, it is configured to 15% solution, and is heated to 70 DEG C, modulate pH to 7.0, add quality hundred Fraction is 8% carboxymethyl chitosan, processes 8min, discongest in high speed fluffer in output frequency is for the microwave of 800w 20min, with the rotating speed defibrination 15min of 15000n in PFI mill；
From carboxymethyl chitosan substitution value DS be 0.6, molecular weight be 45000.
Manufacture paper with pulp：By mass percent be 50%, beating degree be 700The commodity softwood kraft pulp of SR and mass percent It is 35 for 30%, beating degree0After 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 diluent that mass percent is 8%, the polyester fiber solution dilution mass percent after modification Polyester fiber diluent for 16%, after above-mentioned two diluent mix homogeneously, add slurry, percent be 1.0% sun from Sub- konjak portuguese gansu polyose sugar aqueous solution, mass percent are the aqueous solution of 0.05% PAMC and mass percent is 0.1% Ludox, is shaped to wet web in sheet forming apparatus；
In above-mentioned steps, described softwood pulp：The mass ratio of bamboo pulp is 1:1.
Meanwhile, in above-mentioned steps, Cationic Konjac Glucomannan substitution value DS is 0.6, and viscosity is 12000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web obtaining manufacturing paper with pulp is taken off, at 65 DEG C, uniformly spray diameter For 70nm, mass percent be 4.5% fibrillation cellulose surface reinforcing agent, with hydraulic press pressure be 6Mpa squeezing 6min；Again Wet web after processing is put in sheet dryer, at 110 DEG C, 10min is dried, obtain highly-breathable aseptic packaging and use Paper.
Embodiment 4
A kind of preparation method of highly-breathable aseptic packaging paper, comprises the following steps：
Acid fiber by polylactic solution modification is processed：Weigh first acid fiber by polylactic acid fiber by polylactic adds water be configured to 10% molten Liquid, is heated to 40 DEG C, modulates pH to 5.0, adds mass percent to be 10% sodium alginate stirring 40min, in output is Process 10min in the ultrasound wave of 30kHz, and in blender, 10min is stirred with the speed of 10000rpm, be prepared into polylactic acid fine Dimension solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.6.
Polyester fiber solution modification is processed：By polyester fiber under conditions of 30 DEG C, power 200W, air pressure 10Pa, adopt After air low temperature plasma treatment 300s, it is configured to 7% solution, and is heated to 50 DEG C, modulate pH to 2.0, add percent mass The carboxymethyl chitosan for 1% for the number, processes 10min in output frequency is for the microwave of 100w, discongests in high speed fluffer 5min, with the rotating speed defibrination 7min of 20000n in PFI mill；
From carboxymethyl chitosan substitution value DS be 0.5, molecular weight be 50000.
Manufacture paper with pulp：By mass percent be 30%, beating degree be 100The commodity softwood kraft pulp of SR, as slurry, will change Property process after acid fiber by polylactic solution be diluted to mass percent be 4% acid fiber by polylactic diluent, the polyester after modification Fiber solution dilution mass percent is 8% polyester fiber diluent, after above-mentioned two diluent mix homogeneously, adds slurry Material, percent are 0.6% Cationic Konjac Glucomannan aqueous solution, mass percent is that 0.03% PAMC is water-soluble Liquid and mass percent are 0.06% Ludox, are shaped to wet web in sheet forming apparatus；
Meanwhile, in above-mentioned steps, Cationic Konjac Glucomannan substitution value DS is 0.5, and viscosity is 18000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web obtaining manufacturing paper with pulp is taken off, in 40 DEG C of applying glues, uniformly simultaneously Spray surface reinforcing agent, processed in squeezing with hydraulic press；Wet web after processing squeezing again is put in sheet dryer, 90 At DEG C, 15min is dried, obtains highly-breathable aseptic packaging paper.
In above-mentioned steps, described surface reinforcing agent is that the fento cellulose that diameter 60nm, mass percent are 2.5% is molten Liquid.
Embodiment 5
A kind of preparation method of highly-breathable aseptic packaging paper, comprises the following steps：
Acid fiber by polylactic solution modification is processed：Weigh first acid fiber by polylactic acid fiber by polylactic adds water be configured to 16% molten Liquid, is heated to 50 DEG C, modulates pH to 6.0, adds mass percent to be 16% sodium alginate stirring 60min, in output is Process 6min in the ultrasound wave of 80kHz, and in blender, 18min is stirred with the speed of 14000rpm, be prepared into polylactic acid fine Dimension solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.7.
Polyester fiber solution modification is processed：By polyester fiber under conditions of 46 DEG C, power 320W, air pressure 20Pa, adopt After air low temperature plasma treatment 60s, it is configured to 12% solution, and is heated to 60 DEG C, modulate pH to 8.0, add percent mass The carboxymethyl chitosan for 6% for the number, processes 7min in output frequency is for the microwave of 600w, discongests in high speed fluffer 28min, with the rotating speed defibrination 9min of 24000n in PFI mill；
From carboxymethyl chitosan substitution value DS be 0.7, molecular weight be 40000.
Manufacture paper with pulp：By mass percent be 50%, beating degree be 650The commodity sulfate bamboo pulp of SR as slurry, at modification It is 5% acid fiber by polylactic diluent that acid fiber by polylactic solution after reason is diluted to mass percent, the polyester fiber after modification Solution dilution mass percent is 10% polyester fiber, after above-mentioned two diluent mix homogeneously, adds slurry, percent Aqueous solution and the matter being 0.11% PAMC for 2.4% Cationic Konjac Glucomannan aqueous solution, mass percent Amount percent is 0.15% Ludox, is shaped to wet web in sheet forming apparatus；
Meanwhile, in above-mentioned steps, Cationic Konjac Glucomannan substitution value DS is 0.45, and viscosity is 12000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web obtaining manufacturing paper with pulp is taken off, in 56 DEG C of applying glues, uniformly simultaneously Spray surface reinforcing agent, processed in squeezing with hydraulic press；Wet web after processing squeezing again is put in sheet dryer, At 105 DEG C, 8min is dried, obtains highly-breathable aseptic packaging paper.
In above-mentioned steps, described surface reinforcing agent be diameter 80nm, mass percent be 5% fento cellulose molten Liquid.
Embodiment 6
A kind of preparation method of highly-breathable aseptic packaging paper, comprises the following steps：
Acid fiber by polylactic solution modification is processed：Weigh first acid fiber by polylactic acid fiber by polylactic adds water be configured to 18% molten Liquid, is heated to 80 DEG C, modulates pH to 8.0, adds mass percent to be 18% sodium alginate stirring 70min, in output is Process 9min in the ultrasound wave of 80kHz, and in blender, 30min is stirred with the speed of 18000rpm, be prepared into polylactic acid fine Dimension solution；
In the present embodiment, the sodium alginate monodispersity index par of selection（Mn）/ average weight（Mw）Coefficient is 1.8.
Polyester fiber solution modification is processed：By polyester fiber under conditions of 44 DEG C, power 280W, air pressure 28Pa, adopt After air low temperature plasma treatment 140s, it is configured to 13% solution, and is heated to 75 DEG C, modulate pH to 8.0, add quality hundred Fraction is 10% carboxymethyl chitosan, processes 9min, discongest in high speed fluffer in output frequency is for the microwave of 700w 28min, with the rotating speed defibrination 11min of 30000n in PFI mill；
From carboxymethyl chitosan substitution value DS be 0.8, molecular weight be 50000.
Manufacture paper with pulp：By mass percent be 35%, beating degree be 650The commodity sulfate bamboo pulp of SR as slurry, at modification Acid fiber by polylactic solution after reason is diluted to the acid fiber by polylactic diluent that mass percent is 7%, and the polyester after modification is fine Dimension solution dilutes the polyester fiber diluent that mass percent is 10%, after above-mentioned two diluent mix homogeneously, adds Slurry, percent are 3.0% Cationic Konjac Glucomannan aqueous solution, mass percent is 0.15% PAMC Aqueous solution and mass percent are 0.15% Ludox, are shaped to wet web in sheet forming apparatus；
Meanwhile, in above-mentioned steps, Cationic Konjac Glucomannan substitution value DS is 0.6, and viscosity is 15000mPa.s.
Obtain highly-breathable aseptic packaging paper：After the wet web obtaining manufacturing paper with pulp is taken off, at 72 DEG C, uniformly spray diameter For 75nm, mass percent be 3% fibrillation cellulose surface reinforcing agent, with hydraulic press pressure be 6Mpa squeezing 6min；Again will Wet web after process is put in sheet dryer, at 110 DEG C, 10min is dried, and obtains highly-breathable aseptic packaging paper.
The highly-breathable aseptic packaging paper that above-described embodiment 1-6 prepares, its breathability is more than 5.4 μm/Pa.s, splits Disconnected length（Longitudinally）More than 700Km, aperture is less than 20 μm, smoothness（Front）More than 100s, surface strength is more than 14A, Ji Nengman Sufficient wrapping paper is to requirement during internal product sterilization, and the invasion of the outside antibacterial of energy barrier, plays the effect of resistance bacterium, simultaneously Need that there is higher surface strength and printability.
Compared with prior art, the present invention can reach wrapping paper to intensity requirement during internal product sterilization, Provide the microbial barrier that lancinating is high, ruggedness is strong, permeability is excellent and outstanding, have again higher surface strength and Printability, every the key technical indexes reaches aseptic packaging paper quality level.
The present invention can be made into and assists in ensuring that medical apparatus and instruments start to sterilize and keep aseptic aseptic in its whole life cycle Packaging.Can meet and penetrate paper packaged product is carried out disinfection sterilizing and require, but can the outside antibacterial of barrier invasion, play The effect of resistance bacterium；Paper smooths, and tensile strength is high, adapts to printing and the requirement of rear processing, and every the key technical indexes reaches doctor Treat resistance bacterium packaging paper quality level.

Claims (10)

1. a kind of preparation method of highly-breathable aseptic packaging paper is it is characterised in that comprise the following steps：
Acid fiber by polylactic solution modification is processed：Weigh acid fiber by polylactic and be configured to aqueous solution, be heated to 40 DEG C -80 DEG C, adjust PH to 5.0-8.0, weighs in the acid fiber by polylactic solution after being added to pH5.0-8.0 after sodium alginate is configured to solution, adds Sodium alginate soln, after processing in ultrasound wave, stirring, obtain acid fiber by polylactic solution；
Polyester fiber solution modification is processed：Polyester fiber is adopted after the process of air low temperature plasma method, is configured to quality hundred Divide than the aqueous solution for 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%, after processing, discongests 5-30min, defibrination, obtains polyester fiber solution in microwave；
Manufacture paper with pulp：After slurry is processed, it is 4%-8% that the acid fiber by polylactic solution after modification is diluted to mass percent Acid fiber by polylactic diluent, it is fine that the polyester fiber solution after modification is diluted to the polyester that mass percent is 8%-16% Dimension diluent, the polyester fiber that the acid fiber by polylactic diluent mass percent for 4%-8% for the mass percent is 8%-16% is dilute Release liquid mixing after dilution mixture liquid, in dilution mixture liquid addition process after slurry, Cationic Konjac Glucomannan, sun from Mixed liquor is obtained, mixed liquor is shaped to wet web in sheet forming apparatus after sub- polyacrylamide and Ludox；
Obtain highly-breathable aseptic packaging paper：After the wet web obtaining manufacturing paper with pulp is taken off, in 40-80 DEG C of applying glue, uniformly simultaneously Spray surface reinforcing agent, processed in squeezing with hydraulic press；Wet web after processing squeezing again is put in sheet dryer, 90 At DEG C -120 DEG C, 5min-15min is dried, obtains highly-breathable aseptic packaging paper.
2. a kind of highly-breathable aseptic packaging according to claim 1 Preparation Method made of paper it is characterised in that：Described poly- In acid fiber solution modification process step, described acid fiber by polylactic is 10 with the mass ratio of sodium alginate：1-2；Described poly- breast In sour fiber aqueous solution, the mass percent of acid fiber by polylactic is 10%-20%, sodium alginate in described sodium alginate aqueous solution Mass percent is 10%-20%.
3. a kind of highly-breathable aseptic packaging according to claim 1 Preparation Method made of paper it is characterised in that：Described poly- In acid fiber solution modification process step, in described ultrasonic Treatment, the output of ultrasound wave is 30-100kHz, the time 5-10min.
4. a kind of highly-breathable aseptic packaging according to claim 1 Preparation Method made of paper it is characterised in that：Described poly- In acid fiber solution modification process step, in described stirring, mixing speed is 10000-20000rpm, and speed stirs as 10- 30min.
5. a kind of highly-breathable aseptic packaging according to claim 1 Preparation Method made of paper it is characterised in that：Described poly- In ester fiber solution modification process step, described air low temperature plasma method processes and 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 highly-breathable aseptic packaging according to claim 1 Preparation Method made of paper it is characterised in that：Described poly- In ester fiber solution modification process step, during described microwave treatment, the output frequency of microwave is 100-800w, microwave treatment 5- 10min.
7. a kind of highly-breathable aseptic packaging according to claim 1 Preparation Method made of paper it is characterised in that：Described poly- In ester fiber solution modification process step, described defibrination is specially in PFI mill with the rotating speed defibrination 5- of 15000-30000n 15min.
8. a kind of highly-breathable aseptic packaging according to claim 1 Preparation Method made of paper it is characterised in that：Described copy Make in step, described slurry for mass percent be 30%-50%, beating degree be 40-700The softwood kraft pulp of SR and/or Mass percent is 30%-50%, beating degree is 35-650The sulfate bamboo pulp of SR.
9. a kind of highly-breathable aseptic packaging according to claim 1 Preparation Method made of paper it is characterised in that：Described copy Make in step, the Cationic Konjac Glucomannan of addition：PAMC：The mass ratio of Ludox is 20:1:2, with When, the mass percent of described Cationic Konjac Glucomannan solution, PAMC solution and silicon sol solution divides Wei not 0.6%-3%, 0.03%-0.15% and 0.06%-0.3%.
10. a kind of highly-breathable aseptic packaging according to claim 1 Preparation Method made of paper it is characterised in that：Described Obtain highly-breathable aseptic packaging with, in paper step, described surface reinforcing agent is diameter is 1%- in 60-80nm, mass percent 5% fento cellulose solution.
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CN107354821A (en) * 2017-06-27 2017-11-17 华南理工大学 A kind of green medicine resistance bacterium package paper and preparation method thereof
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